Month: August 2019

first_img Ray-tracing software lets researchers visualize science with greater fidelity “Graphics displays have faced a limitation due to their digital nature,” Hanson explained to PhysOrg.com. “For example, handling large ranges in detail is out of the range of standard hardware, such as accelerated graphics cards. With this new system, we can create an accurate, interactive experience, with continuous scaling over different scale ranges. You can wander continuously throughout the universe without any anomalies.”Fu and Hanson’s work tackles several problems that past systems have faced: focusing on objects at different distances, depth perception, and speed. As Hanson explains, it’s a bit like looking at a ladybug on your nose with the galaxy in the background. To improve these areas, the scientists developed a graphics software system that provides a continuously scalable visualization in three dimensions. Citation: In ‘forty jumps,’ scientists model scales of quarks to quasars (2007, January 18) retrieved 18 August 2019 from https://phys.org/news/2007-01-forty-scientists-scales-quarks-quasars.html Hanson and Fu designed their software by extending the powers-of-ten framework, shown for common objects in this table. Image Credit: Andrew Hanson, et al. © 2006 IEEE. Comprehending the smallness of a quark or the hugeness of the observable universe is a challenge that most of us find difficult, yet captivating. Placing vastly different scales side by side to explore their relationship amounts to a task not even computers have mastered efficiently. Recently, scientists Chi-Wing (Philip) Fu and Andrew Hanson have developed a visualization system of the universe that may help scientists, educators and film viewers better understand size on a journey through the universe. The content of the system—stars, galaxies, supernovae, etc.—comes from an extraordinary collection of data from exploration systems such as the Sloan Digital Sky Survey, the Bright Star Catalogue, Hubble and other telescopes. In their study, Fu and Hanson present a “powers-of-ten journey,” starting, e.g., from Earth (107 m) up through the solar system (1013), the Pleiades cluster (1018), the Andromeda galaxy (1023), and beyond (see figure).Like previous computer graphics programs studying outer space, Fu and Hanson predict that this system could not only have use for astronomers and physicists studying the universe, but for educational and commercial purposes, as well. IMAX shows and planetarium presentations have excited young enthusiasts with their realistic animations, and as computational power continues to grow, the public can also benefit from Fu and Hanson’s scale visualization technology.“Our motivation was to create a framework for a real-time digital planetarium,” said Hanson. “With this framework, we’ve created a series of layers of objects across an enormous scale range, all on a single screen.”Citation: Fu, Chi-Wing and Hanson, Andrew J. “A Transparently Scalable Visualization Architecture for Exploring the Universe.” IEEE Transactions on Visualization and Computer Graphics, Vol. 13, No. 1, January/February 2007.By Lisa Zyga, Copyright 2006 PhysOrg.com. All rights reserved. This material may not be published, broadcast, rewritten or redistributed in whole or part without the express written permission of PhysOrg.com.center_img Because a normal “zoom” feature would take an impractical amount of time due to the vast precision required, Fu and Hanson used a new approach: power-scaled coordinates (PSC). The scientists were inspired by a film called “Powers of Ten” by Eames and Eames, which itself was based on the 1957 children’s book Cosmic View: The Universe in Forty Jumps by Boeke. “We asked ourselves, ‘how do you provide that experience [of the film]?’” said Hanson. “We extend that ‘powers of ten’ framework by making this system interactive instead of pre-computed and pre-stored.”Fu and Hanson’s PSC system works by representing coordinates and vectors using logarithmic scaling methods, enabling the system to handle all scales in a single context for interactive control by the user. One of the novel PSC-based ideas in the architecture is a “depth rescaling method,” which can project objects across extreme scales with the needed precision by distorting the vertices of distant background objects. Also, to accelerate the rendering of objects during navigation, the system uses “environmental caching” and “object disappearance” to develop pre-rendered backgrounds and ignore objects that are not large or luminous enough to appear on the screen. On a desktop computer, the program achieves interactive speeds. Explore further This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. From the top left and moving across, this powers-of-ten journey shows Earth (red line represents the ISS) (107 m), Earth and satellites (108 m), solar system (1013 m), Pleiades (1018 m), extrasolar planets (1018 m), and the Milky Way and Large Magellanic Cloud (1023 m). Image Credit: Andrew Hanson, et al. © 2006 IEEE.last_img read more

first_img More information: plus.google.com/+chrome/posts/BkJmjzDicSh © 2013 Phys.org Explore further WebRTC is available on desktop Chrome and Chrome OS, and will be available on mobile later this year. Game visitors, though, can play Cube Slam against Bob the Bear on a smartphone or tablet. Cube Slam’s graphics are rendered in WebGL. For Chrome and Firefox users, WebGL brings hardware-accelerated 3-D graphics to the browser without installing additional software. If you don’t have WebGL, says Google, you can still play Cube Slam in 3-D with CSS3, which allows developers to build their web pages with the same game engine running under the hood. CSS3 stands for Cascading Style Sheets. Google noted that all the graphics run on your GPU, freeing the CPU for other tasks.The soundtrack comes by way of Web Audio, which is used for games and interactive applications. The Cube Slam music-tracker and sound manager are built on the Web Audio API. The soundtrack adapts in real-time to every level reached. WebRTC puts video chats all in the browser (Phys.org) —Google has a new game called Cube Slam where you get to slam a cube into another player’s screen target. If you hit the cube against the other player’s screen three times, terrific, the screen shatters. To keep the game from getting dull, varied levels are part of the mix, complete with obstacles and gravity fields to keep players challenged. This is as addictive as an old-time video arcade game but supplemented with video chat as well. A share link gets the two players going. Google’s CubeSlam debut falls under the Google umbrella of Chrome Experiments, a showcase for web experiments. Most of these experiments are built with the latest open technologies: HTML5, Canvas, SVG, and WebGL. “We hope they show how the web has become faster, more fun, and more open – the same spirit in which we built Google Chrome.” Citation: Cube Slam: Google’s video game plays up WebRTC, WebGL (2013, June 14) retrieved 18 August 2019 from https://phys.org/news/2013-06-cube-slam-google-video-game.html To underscore not only fun but technologies such as WebRTC and WebGL as great ingredients for web innovating, a game like Cube Slam with ample pointers to the way it was built appears to be a clever slam dunk. The blurb on the home page of Chrome Experiments invites first-time hopefuls to play the game where “Video chat meets video game in this new experiment featuring WebGL and WebRTC. Play face-to-face against a friend just by sending a link.”WebRTC is a web standard that enables web browsers with Real-Time Communications (RTC) capabilities via simple Javascript APIs. That means that RTC applications can be developed right in the browser. The underlying technology comes from Global IP Solutions, a 2010 Google acquisition. Google opened the source code, with the intention of greasing the wheels toward standardization. Web RTC stands for Web Real Time Communication. Google does not own it; it’s an open source project supported by Google, along with Mozilla and Opera. Components such as VoiceEngine, VideoEngine, NetEQ stem from the acquisition. “Cube Slam is built using WebRTC, an open web technology that lets you video chat with your friends right in the browser, no plug-ins necessary. The getUserMedia API provides access to your webcam and microphone, RTCPeerConnection sends the audio and video to your friends, and RTCDataChannel exchanges all the bits and pieces that keep the game in sync. When there are no firewalls in the way, game data can be sent directly peer-to-peer, greatly reducing server costs.” This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.last_img read more

first_img The scientists, P. Panagiotopoulos, D.G. Papazoglou, A. Couairon and S. Tzortzakis, from institutions in Greece and France, have published a paper in a recent issue of Nature Communications in which they show theoretically and experimentally how ring-Airy beams transform into light bullets.An airy beam is a type of light beam that has the distinct feature of forming a parabolic arc as it propagates through space. In fact, it gets its name from the Airy integral, developed in the 1830s by Sir George Biddell Airy to describe the way light bends in a rainbow. In 2011, scientists (including some of the authors of the current paper) experimentally demonstrated an Airy beam in the shape of a ring. In the linear regime, this ring-Airy beam can focus itself into a sharp focal point, which could make it an ideal candidate for precise laser ablation applications in hard-to-reach environments.In the new study, the scientists have investigated the properties of ring-Airy beams in the non-linear regime, and found them to be even more impressive than in the linear regime. The scientists found that the ring-Airy wavepacket reshapes itself into a propagating high intensity light bullet that spreads neither in space nor in time over significantly longer distances than Gaussian beams, which are often used in conventional lasers.The researchers also found that, when the input power is increased, the ring-Airy beam’s focus position is not shifted nearly as much as it is for Gaussian beams. The researchers could mathematically predict the position of the ring-Airy beam’s focus for a given input power, which they confirmed through experiments.These highly focused, high-intensity ring-Airy beam light bullets offer a very high level of control that cannot be achieved with equivalent Gaussian beams, making them ideal for a variety of optical applications ranging from precision materials processing to attosecond drivers. Citation: Scientists create light bullets for high-intensity optical applications (2013, November 12) retrieved 18 August 2019 from https://phys.org/news/2013-11-scientists-bullets-high-intensity-optical-applications.html Journal information: Nature Communications More information: P. Panagiotopoulos, et al. “Sharply autofocused ring-Airy beams transforming into non-linear intense light bullets.” Nature Communications. DOI: 10.1038/ncomms3622 © 2013 Phys.org. All rights reserved. (Phys.org) —Controlling the propagation of high-intensity light beams as they travel through air (or other transparent media) is a challenging task, but scientists have now shown that a relatively new type of light beam called a ring-Airy beam can self-focus into intense light bullets that propagate over extended distances. These well-defined, high-intensity optical wavepackets could have applications in a variety of areas, such as laser micromachining and harmonic generation.center_img Explore further Researchers discover a way to generate an electron Airy beam Compared to two types of Gaussian beams (EEGB and ECGB), the ring-Airy wavepacket has a more precisely focused shape, appearing as a ‘light bullet.’ The wavepacket shapes are shown at different distances as the beams propagate from left to right. Credit: P. Panagiotopoulos, et al. ©2013 Macmillan Publishers Limited This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.last_img read more

first_img(Phys.org)—It was an interesting week for physics as a team of researchers with the University of California and the University of Tokyo proposed a new definition of time crystals—then proved such things don’t exist—theory had suggested a system that could move despite not having enough energy to do so. Also, a team at Ecole Normale Supérieure in France demonstrated a way to control the quantum properties of light by using microwave photons to probe a superconducting circuit. And researchers working for the Department of Energy used neutrons to find the “missing” magnetism of plutonium—confirming a long held theory. Boeing patent puts focus on laser-powered propulsion system (Update) It was also an interesting week for space exploration, mostly notably regarding reports describing findings by NASA’s New Horizon spacecraft as it approaches Pluto—first, as the craft moved closer, new geological features began to appear. Then, after getting even closer to the dwarf planet, researchers noted a heart-shaped feature on the surface—though they still do not know what it is. Such news highlights a problem developing within NASA and other space research groups: How will we know when we have found extraterrestrial life? Phys.org spoke to Terence Kee, President of the Astrobiology Society of Britain to gain some insight. In related news, a new Boeing patent put focus on laser-powered propulsion systems for airplanes, and potentially for spacecraft as well. The idea appears to involve firing a laser at a piece of radioactive material, setting off a small fusion reaction. Boeing has not commented publicly on the patent or idea.In other news, a team of researchers at Pennsylvania State University College of Medicine wondered: Can four fish oil pills a day keep the doctor away? They believe the answer is yes, at least for older people who take the pills for at least three months. Also, somewhat ominously, researchers with NASA’s Jet Propulsion Laboratory working on a new study found that heat is being stored beneath the ocean surface. That helps to explain where all the excess heat due to greenhouse gases has been going, but it also poses the question of what happens when the saturation point is reached.And finally, if you are one of the millions of people who suffer with some type of chronic pain, good news may be coming soon as a team of researchers at the University of California has found the key mechanism that causes neuropathic pain—they believe the discovery will open the door to new treatments that will finally alleviate suffering from such ailments as trauma, diabetes, MS, shingles and a host of other conditions. © 2015 Phys.org Explore furthercenter_img This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. Citation: Best of Last Week – New definition of time crystals, new images of Pluto and the mechanism that causes neuropathic pain (2015, July 13) retrieved 18 August 2019 from https://phys.org/news/2015-07-week-definition-crystals-images-pluto.html Zeno cat. A Zeno cat refers to non-classical states of light created by shining a cavity on resonance while it is forbidden to access a given energy level. The name originates from the Zeno effect, which can similarly prevent an energy level from being occupied by the sole fact of measuring its occupation frequently. The cat comes from the similarity of such a state with a Schrödinger cat state of light: a superposition between two classical states of light. The Zeno cat figure corresponds to the study’s experimental design. Credit: Benjamin Huard.last_img read more

first_img Explore further Since it was first developed three years ago and marketed, artists and manufacturers have shown interest in using the coating to create unique-looking products—a watch from Contemporaine du Temps, for example, designed by British artist, Anish Kapoor, features Vantablack on its dial and minute hand—it adds a degree of depth to the watch that other watches do not have.Representatives for Nanosystems have told the press that they believe that Vantablack could also be used to improve the performance of cameras and sensors—the only drawback is that the coating is still too delicate for use in commercial applications, though it has been used on some star-tracking satellites. Vantablack is made by chemically growing a network of carbon nanotubes (each of them is just 20 nanometers in diameter and approximately 14 microns to 50 microns in length) in a high-temperature chamber, creating a forest of sorts on a base such as aluminum—the nanotubes are so small and dense that the company reports that over a billion of them exist on a 0.1 in square patch. The material is then applied as a coating to another object—light hitting the coating is absorbed because it is bounced around between the nanotubes instead of being reflected back. Such materials have an eerie look, as they appear to be missing features normally seen in other black materials. The result is striking—coated objects appear is if they have been photoshopped to remove all traces of contours and other features. It is only by changing the angle of objects coated with the material that features are visible.Nanosystems has also reportedly developed a spray version of Vantablack (Vantablack S-VIS.) which should make the coating more accessible to anyone who wants to use it, though it is not quite as black. Credit: Surrey Nanosystems (Phys.org)—U.K.-based Surrey Nanosystems has announced that it has improved on the original Vertically Aligned Nanotube Array BLACK (Vantablack coating) which the company claimed to be the blackest material ever made. The original Vantablack was found to absorb 99.96 percent of visible (and ultraviolet and infrared) light—the new Vantablack is darker—so much so that it cannot be measured by a spectrometer. Citation: New version of Vantablack coating even blacker than original (2017, April 11) retrieved 18 August 2019 from https://phys.org/news/2017-04-version-vantablack-coating-blacker.htmlcenter_img © 2017 Phys.org Credit: Surrey Nanosystems Surrey NanoSystems has “super black” material This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.last_img read more

first_img © 2018 Phys.org Physicists have designed a 3-D quantum memory that addresses the tradeoff between achieving long storage times and fast readout times, while at the same time maintaining a compact form. The new memory has potential applications in quantum computing, quantum communication, and other technologies. Journal information: Applied Physics Letters Citation: Compact 3-D quantum memory addresses long-standing tradeoff (2018, June 4) retrieved 18 August 2019 from https://phys.org/news/2018-06-compact-d-quantum-memory-long-standing.html Record-breaking efficiency for secure quantum memory storage Explore furthercenter_img More information: Edwar Xie, et al. “Compact 3-D quantum memory.” Applied Physics Letters. DOI: 10.1063/1.5029514 The physicists, Edwar Xie and coauthors at the Walther-Meissner-Institut, Technical University of Munich, and Nanosystems Initiative Munich (NIM), Germany, have published a paper on the new 3-D quantum memory in a recent issue of Applied Physics Letters.”Since quantum information is very fragile, it needs to be processed fast or preserved in a suitable storage. These two requirements are typically conflicting,” Xie told Phys.org. “The greatest significance of our work is that it shows how to build a device with fast access to stored quantum information, enabling fast processing, combined with a long storage time.”One of the greatest challenges facing any kind of quantum technology is enhancing the qubit lifetime, and when it comes to quantum memories, 3-D devices offer the longest coherence times, up to a few milliseconds. In these memories, qubits are stored in 3-D microwave waveguide cavities, whose slow decay times enable long qubit storage times. However, a tradeoff occurs in these devices, since fast readout times require the cavity decay to be fast.Previously, researchers have addressed this tradeoff in various ways, such as by physically separating the storage and readout units. However, with separate units the devices become relatively large and bulky compared to 2-D memories, causing problems for scalability.In order to simultaneously achieve long storage times, fast readout times, and a small footprint, in the new study the researchers made use of the multimode structure of 3-D cavities. In this approach, the researchers used antennas to couple a qubit to two distinct modes of a single 3-D microwave cavity, which is much more compact than using two entirely separate units. They engineered the cavity so that the memory mode has a quality factor that is 100 times larger than that of the readout mode, which leads to slow decay for the memory mode and fast decay for the readout mode.As a result of this coupling, the researchers demonstrated that the qubit state can be read out on a timescale that is 100 times shorter than the storage time. Further, simulations showed that more accurate antenna positioning could extend the ratio between readout and storage time to 25,000. This value would significantly outperform the current highest reported ratio of 7300 for quantum memories with cylindrical 3-D cavities.In the future, the researchers plan to make further improvements to the memory, such as scaling up by adding more qubits, coupling the qubit to higher cavity modes, and enabling the memory to store cat states (a superposition of two macroscopic states), which has potential applications in continuous variable quantum computing. “One potential application of this compact 3-D quantum memory lies in the field of analog quantum simulation, where an engineered quantum circuit, such as a qubit, mimics an atom,” Xie said. “Due to its compact size and relaxed requirements of cabling, our 3-D quantum memory platform is specifically suitable for building chains of artificial atoms for the simulation of molecules. Here, one cell of the chain consists of a single 3-D cavity with one qubit, a storage mode for intermediate information storage and a readout mode for fast information retrieval. The coupling to the neighboring cell can be achieved with another qubit.” (a) Photograph of the 3D quantum memory and (b) optical micrograph of a qubit. Credit: Xie et al. ©2018 American Institute of Physics This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.last_img read more

first_img LEFT: Simulation surface configuration. Illustration of the 3D simulation repeat unit, with 2D cross section showing labeled structural parameters. RIGHT: Quantification and mechanisms leading to the CAH (contact angle hysteresis) for reentrant and doubly reentrant geometries at zero applied pressure. (A) (i) CAH dependence on both the area fraction Fr and total cap height Dr. Symbols indicate the depinning mechanism upon receding, with purple diamonds indicating a hybrid mechanism. (ii and iii) Comparison of the bridge-, edge-, and lip-depinning receding models (solid lines, color-coded) against the simulated θr (data points); examples shown with varying Fr at fixed Dr = 0.05 and 0.35. The ±1° error bars in the simulation data are too small to be seen. (B) 3D visualization of the advancing liquid-vapor interface (shown in blue); the advancing direction is indicated by a black arrow. Black and red lines indicate the center and edge 2D cross sections that are also presented (right). (C) (i to iv) Visualizations of the major four receding mechanisms. The receding direction is indicated by black arrows. Credit: Science Advances, doi: 10.1126/sciadv.aav7328 , Proceedings of the National Academy of Sciences Journal information: Science Advances In this way, the scientists developed highly versatile computational techniques to study any mesoscopically structured surface in contact with multiple fluid phases. The multifaceted optimization strategy can be further improved for reliability and scalability to couple with recent advances in fabrication including 3-D printing and lithographic methods to efficiently design real-world superomniphobic surfaces. In materials science, surfaces that strongly repel low surface tension liquids are classified ‘superoleophobic,” while high surface tension liquid repellants are ‘superhydrophobic’ and surfaces that display both characteristics are ‘superomniphobic.” Superomniphobic surfaces are at the frontiers of surface design for a vast array of applications. In a recent study, J. R. Panter and co-workers at the Department of Physics and Procter and Gamble Co. in the U.K. and the U.S. developed computational methods to systematically develop three key surface wetting properties. These included contact angle hysteresis, critical pressure and a minimum energy wetting barrier. In the study, the scientists developed quantitative models and corrected inaccurate assumptions within existing models. When studying the third parameter on minimum energy transition mechanisms, the scientists identified three failure mechanisms. For instance, a surface design failure can be initiated through a broad range of additional perturbations including flow, vibration, evaporation, condensation, droplet impact, changing electrical and magnetic fields or thermal fluctuations at the nanoscale. In real-world applications, failure could be initiated by a combination of perturbations. To fabricate a texture resistant to failure, Panter et al. therefore combined the maximum energy pathway (MEP) to account for a worst case scenario of combined failures. They identified three transition pathways as (1) base contact (BC), (2) pillar contact (PC) and (3) cap contact (CC), then quantified each barrier across the structural parameter space. Thereafter, they assessed the likeliest mechanism of energy transition for a given surface geometry. The scientists then conducted simultaneous optimization of the identified structural features to maximize critical pressure, minimize the energy barrier and maximize the CAH. For this, they performed optimal design of two membranes for applications on water purification and digital microfluidics. Panter et al. also showed that a genetic algorithm could be used to efficiently locate the optimum design in the parameter space and design more complex structures for special wettability applications. Critical pressure analysis for reentrant and doubly reentrant geometries. (A) Contour plots of ΔPc variation with Fr and Hr for reentrant (i) and doubly reentrant (ii) geometries. Data points mark the critical height at which the failure mechanism switches from Base Failure (BF) to Depinned Cap Failure (DCF) or Pinned Cap Failure (PCF), and error bars indicate the uncertainty in this height due to the diffuse interface width. Solid and dashed white lines show the critical height based on the capillary model and 2D model, respectively. (B) Model fits to ΔPc of the Cap Failure mechanisms at Hr = 0.25 for reentrant (i) and doubly reentrant (ii) geometries. (C to E) The three failure mechanisms shown in 3D, with associated diagonal cross sections. Critical pressure liquid morphologies are shown in blue, the vapor phase is shown in white, and the interface is indicated with a black solid line. Red regions show how the unstable meniscus evolves upon increasing ΔP above ΔPc. (D and E) Under-cap views, highlighting the shapes of the contact lines at the critical pressure. (F) Details of the 3D horizontal (3DD) and 3D diagonal (3DH) capillary bridge models used, showing the inner and outer circumferences (blue) against the system configuration. The 3D illustration compares the simulated liquid-vapor interface (light blue) to the horizontal capillary model (dark blue). Credit: Science Advances, doi: 10.1126/sciadv.aav7328 Explore further Simultaneous optimization of the three wetting properties for membrane distillation and digital microfluidics applications. (A) (i) 3D contour plot of the membrane distillation scoring function at fixed Hr = 0.3, Ar = 0.05, and tr = 0.05. Each surface is a surface of constant score. (ii) A 2D slice of the 3D contour plot at the optimal Lr = 0.17. Square data points show the initial (white), second (light gray), fifth (dark gray), and final (black) generations of the genetic algorithm, projected onto the 2D plane. (B) Scoring function for the digital microfluidics application, projected onto the Hr = 0.3 plane at fixed B = 100 μm, also showing the successive generations of the genetic algorithm population. Credit: Science Advances, doi: 10.1126/sciadv.aav7328 Making a splash is all in the angle Video shows the pillar contact (PC) mechanism for a doubly reentrant geometry at θ° = 60° a surface property identified in the study. Credit: Science Advances, doi: 10.1126/sciadv.aav7328 Panter et al. combined these analyses simultaneously to demonstrate the power of the strategy to optimize structures for applications in membrane distillation and digital microfluidics. By antagonistically coupling the wetting properties, the scientists implemented a multifaceted approach to optimally design superomniphobic surfaces. Using genetic algorithms, they facilitated efficient optimization for speedups of up to 10,000 times. The results of the study are now published on Science Advances. Superomniphobic surfaces have physical micro- and nanotextures that allow low-surface-tension liquids (oils and alcohols) to remain suspended on a vapor-filled surface structure. This liquid-shedding ability can promote efficient droplet mobility with low viscous drag , with transformative potential across a broad range of applications. These include sustainable technologies for water purification, antimicrobial strategies in biomedicine, anti-fingerprint coating techniques, reducing food waste and versatile biochemical technologies, at the global scale. Recent breakthroughs in microfabrication have allowed the formation of complex structures at the micrometer scale resolution, including three-dimensional (3-D) printing technology, fluidization of polymer micropillars and lithographic methods. Despite these highly versatile techniques, materials scientists and physicists still seek to understand how to precisely design surface structures for optimal performance in real-world applications. A successful omniphobic design must demonstrate three key wetting properties to include (1) a low contact angle for maximum liquid mobility, (2) high critical pressure for stability of the superoleophobic state, and (3) a high energetic barrier to failure. Due to complexities of surface design, uniting computational and experimental studies can be expensive and time-consuming to understand this basis. In the present work, Panter et al. overcame the challenges of designing superomniphobic wetting properties by first designing computational strategies to understand the effect that structural parameters had on the three defined criteria. To illustrate the importance of multifaceted optimization they used two relevant examples of water purification via membrane distillation and droplet-based digital microfluidics. The scientists developed a genetic algorithm to efficiently perform simultaneous optimizations with speedup to 10,000 times. This versatile approach can be coupled to recent innovations in complex surface microfabrication techniques to offer a transformative approach to surface design. The scientists first simulated the liquid vapor interface advancing and receding along a single row of surface structures to obtain their respective contact angles and contact angle hysteresis (CAH, i.e., the difference between advancing and receding contact angles). They arranged the variable dimensions in a square array and observed the hysteresis to be identical for both reentrant and doubly reentrant geometries (geometries with very low liquid-solid contact fraction). Using the simulation, the scientists observed four dominant receding mechanisms to describe and model them in the present work. Thereafter, using the new models Panter et al. qualitatively tested the receding models proposed in previous studies to verify their accuracy. They analyzed the energetic changes to obtain the angle at which receding became energetically favorable to form the optimal receding angle. Unlike simulations of CAH, the second parameter of interest on critical pressure was sensitive to the reentrant or double reentrant surface geometry. The scientists observed three failure mechanisms in the critical pressure study and quantified them as a function of the structural parameters. When they compared quantification in the present work with simulation data, they detected prevailing and widely used critical pressure models introduced in previous studies to be considerably oversimplified. For instance, poor description of the liquid-vapor interface morphology prompted manufactured structures to be many times smaller and mechanically weaker than necessary. By developing a more sophisticated model in the present work, Panter et al. achieved both quantitative accuracy of the critical pressures and successfully modeled the desired complex interfacial morphologies. More information: J. R. Panter et al. Multifaceted design optimization for superomniphobic surfaces, Science Advances (2019). DOI: 10.1126/sciadv.aav7328 Arun K Kota et al. The design and applications of superomniphobic surfaces, NPG Asia Materials (2014). DOI: 10.1038/am.2014.34A. Tuteja et al. Robust omniphobic surfaces, Proceedings of the National Academy of Sciences (2008). DOI: 10.1073/pnas.0804872105 A. Tuteja et al. Designing Superoleophobic Surfaces, Science (2007). DOI: 10.1126/science.1148326 , Science Demonstrating a failure mechanism identified in the study, video shows the base contact (BC) mechanism for a doubly reentrant geometry at θ° = 60°. Credit: Science Advances, doi: 10.1126/sciadv.aav7328 © 2019 Science X Network Citation: Multifaceted design optimization for superomniphobic surfaces (2019, June 28) retrieved 18 August 2019 from https://phys.org/news/2019-06-multifaceted-optimization-superomniphobic-surfaces.html This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.last_img read more

first_imgThe book was released by Szilveszter Bus, Ambassador-Designate of Hungary. The launch was followed by an illustrated lecture, Amrita Sher-Gil, Paris, and the Bloomsbury Group, by an art historian Giles Tillotson and a special screening of the film, Amrita Sher-Gil: The Bridge Builder, directed by Ebrahim Alkazi.The book talks about Amrita Sher-Gil’s journey between the polarities when she remained unacknowledged during her life and considered an icon post her death. Did the Ajanta caves and Gauguin influence Amrita’s works? How was she as a person and as an artist? Was her work in India indeed of unequal quality as often considered to be? In this collection, Karl Khandalavala, G H R Tillotson, K G Subramanyan, and N Iqbal Singh, among others, ponder these and other aspects of Amrita’s short but impactful life dedicated to art. Also Read – ‘Playing Jojo was emotionally exhausting’With Charles Fábri’s fictional account of the travails of a young artist in Lahore in the 1940s carrying an unmistakable resemblance with the influential and avant-garde artist, the volume also includes a piece by Amrita on her evolution as an artist. Accompanied by rare black and white and colour visuals, this book brings together modern and contemporary critiques as well as early writings by past masters that have largely remained inaccessible until now.last_img read more

first_imgKolkata: Taking a tough stand against infighting, the Trinamool Congress on Tuesday removed the chairman and vice-chairman of North Dum Dum municipality and announced the names of Subodh Chakraborty as chairman and Lopamudra Dutta Chowdhury as vice-chairman of the civic body.The decision was taken after a high-level meeting at the chamber of state Food minister Jyotipriya Mallick who also happens to be the TMC president of the North 24-Parganas. Senior Trinamool Congress leaders like Saugata Roy, Chandrima Bhattacharjee, Nirmal Ghosh and most importantly 25 councillors of the municipality were also present in the meeting. Also Read – Heavy rain hits traffic, flights”We have removed the chairman and vice-chairman and have appointed new ones after we reached a consensus in the meeting. The parliamentary party of the municipality will hold a meeting every 15 days to keep a stock of the progress of work and at the same time a monitoring committee that has been formed will also hold meetings in presence of senior leaders to keep an eye on the functioning ” Mallick said.It may be mentioned that factional feuds within the TMC had reached its pinnacle in North Dum Dum on May 24 when the vice-chairman of the TMC-run North Dum Dum municipality was assaulted at his office by two contractors allegedly close to chairman Kalyan Kar. Also Read – Speeding Jaguar crashes into Merc, 2 B’deshi bystanders killedThe ruckus inside spilled on to the streets as vice-chairman Nazimul Haq’s supporters blocked roads and railway tracks and damaged police vehicles, bringing traffic in Birati-Nimta area to a halt. Even MP Saugata Roy was mobbed by the protesters when he reached the spot to pacify the crowd.The party had formed a committee under the leadership of Roy to address the issue of internal infighting. The committee had recommended the removal of both the chairman and the vice-chairman for such action which they felt was not commensurate with the party line. The recommendation was ratified in Tuesday’s meeting.last_img read more

first_imgThe next time a hangover hits you hard the morning after a late-night party, look in the mirror to see if your hair is turning white or your hairline is receding.Yes, age is a major factor in the way drinking affects you. Worsening impact of hangovers are a reminder that drinking in moderation would be a better idea, say health experts.“The capacity of our liver to cope with alcohol reduces with age. The alcohol metabolising enzyme reduces and the body fat increases reducing muscle mass, thus increasing the effect of alcohol,” said Dr Rahul Tambe, general physician from Nanavati Super Specialty Hospital in Mumbai in an email. Also Read – ‘Playing Jojo was emotionally exhausting’“Elderly people are often on multiple medication which interferes with alcohol metabolism. Losing weight causes reduced distribution of alcohol in body causing greater intoxication and hangover,” he added.According to Dr Yogesh Batra, senior consultant (gastroenterology) at BLK Super Specialty Hospital in New Delhi, with age, there is an accumulation of substances like acetaldehyde in the liver which are the by-products of alcohol metabolism and are one of the “incriminating agents” responsible for hangovers.  Also Read – Leslie doing new comedy special with Netflix“There is brain degeneration with age and the toxic products tend to hit the brain harder. There is a tendency towards dehydration as the ageing population tends to drink less water which leads to hangovers,” Dr Batra said. Hangover or veisalgia is usually experienced after an alcoholic over-indulgence. The symptoms experienced range from a simple headache to severe nausea, vomiting, giddiness, fatigue and sweating. In some people, it can even lead to anxiety or panic attacks.  Severity of hangover depends on amount of alcohol intake, frequency of heavy drinking and food intake. Is there a cure for hangover?  “Eat more before and after the alcoholic consumption. Besides eating, drinking loads of fluids will also help. Lime water is the best fluid which can be consumed before and after the alcoholic consumption,” advises Dr Deepak Verma, general physician from Columbia Asia Hospital in Ghaziabad. Alcohol consumption can irritate the stomach lining, leading to gastritis. So, food and fluids taken before and after alcoholic consumption help to reduce the gastric irritation, the experts note.Hangover is best dealt with adequate sleep or rest, plenty of liquids and food. “Losing weight leads to even worse hangovers. Since the effective alcohol concentration in the body is going to be more hence those who lose weight should reduce drinking,” says Dr Batra. In the end, preventing a hangover is easy —drink in moderation, space out your drinks, have plenty of water and eat. But then who doesn’t know this?last_img read more

first_imgContrary to the timeless proverb, you can teach an old dog new tricks and though they may be slow learners, they display superior logic than puppies, reveals a new study.Using a series of touchscreen tests, researchers from Austria conducted a study on the effect of ageing on cognitive processes such as learning, memory and logical reasoning in pet dogs of varying ages.The study provides measures associated with normal cognitive ageing in Border collies — fast learning popular breed of pet dog — and thus could be used as a basis for breed comparisons as well as early recognition and treatment of certain cognitive deficits, said the researchers from the Messerli Research Institute at Vetmeduni in Vienna. Older dogs learn more slowly and displayed lower cognitive flexibility, the study showed. The older dogs required more trials than younger ones before they were able to solve the given task correctly, the research said. “The test showed that older dogs are less flexible in their way of thinking than younger ones. As in people, older dogs find it more difficult to change old habits or what they have learned,” said Lisa Wallis from the Messerli Research Institute at Vetmeduni in Vienna.Dogs’ logical reasoning improved with age, revealed the study. The older the dog, the better it performed, while younger dogs were unable to master the tasks given, probably because older dogs more stubbornly insist on what they have learned before and are less flexible than younger animals, the researchers said.The tests also revealed that dogs’ long-term memory is not affected by age.last_img read more

first_imgNot only is eating chocolates good for your body, applying it to your skin, face or body can provide a lot of benefits as well for better and smoother skin tone, suggest experts. Here are some tips on how chocolates can provide fruitful benefits for your skin.Chocolates are rich in anti-oxidants which helps in reversing the signs of ageing.They have anti-inflammatory properties which makes it extremely suitable for very sensitive and dry skin. Also Read – Add new books to your shelfDark Chocolate helps in improving skin texture, giving you a more smooth and moisturised skin.Chocolates contain flavanols, antioxidants that protect your skin from UV damage, free radicals and improve skin hydration.Flavanols are phytonutrients that help in reducing blood pressure, cholesterol level, reducing the risk of heart diseases, controlling blood sugar level and moisturising & softening of the skin.Chocolate when combined with caffeine, which is an excellent anti- inflammatory product, is ideal for treating water retention. Also Read – Over 2 hours screen time daily will make your kids impulsiveChocolate facial is a new fad introduced in the beauty and personal care industry. It not only can improve the skin tone, but is also great in reducing wrinkles and fine lines.Mix 1/3rd cup of cocoa powder with 2-3 tablespoon of honey and add a few lemon drops. Apply this chocolate face mask on your face evenly and leave it for about 15-20 minutes before washing. This will give your skin a smoother and clearer tone along with a radiant glow.last_img read more

first_imgFestivities marked the launch of Kalyan Jewellers flagship showroom in the upmarket South-extension neighbourhood of New Delhi. The flagship showroom is the largest showroom of Kalyan Jewellers in North India. Bollywood superstar Amitabh Bachchan, the brand ambassador for Kalyan Jewellers along with Jaya Bachchan and his daughter Shweta Bachchan Nanda were present for the inauguration and they held the excited crowd in thrall with their presence as they thanked the fans for their love and support. Also Read – Add new books to your shelfT S Kalyanaraman, Chairman and Managing Director of Kalyan Jewellers along with the Executive Directors Rajesh Kalyanaraman and Ramesh Kalyanaraman were present at the inauguration. After addressing the huge gathering outside the showroom, they cut the ceremonial ribbon at the foyer of the showroom before taking a tour of the showroom. With the launch of this flagship showroom, Kalyan Jewellers presently has eight showrooms in the NCR region, and a grand total of 132 showrooms globally. The showroom is spread over two dedicated floors with ample parking and will offer customers a curated jewellery shopping experience with a wide variety of contemporary and traditional designs for every day as well as bridal wear and festive occasions. Also Read – Over 2 hours screen time daily will make your kids impulsiveT S Kalyanaraman, Chairman and Managing Director, Kalyan Jewellers Ltd. said, “Our flagship showroom will give our customers a superior value proposition with the assurance of the best of quality and the highest service standards. With an investment of around Rs125 crore, this showroom reiterates our commitment to grow our presence in the country. The launch is the beginning of the second phase of expansion for which a budget of Rs.1000 cr. has been earmarked for 20 showrooms during this fiscal. The expansion is being met through internal accruals, without any bank borrowings or capital dilution” Customers can avail the Dhanteras 2018 rate protection offer at the launch of the flagship showroom by pre-booking their jewellery. Lucky ones stand a chance to win up to 500 gold coins, through a scratch and win offer valid on all purchase above Rs 20,000. Apart from this, Kalyan is also offering all its patrons an assured and free gold coin, on purchases of diamond, solitaire, polki and precious stone based jewellery above Rs 25,000.last_img read more

first_img Even though some intern probably just screwed up, if the Patriots and Vikings both win this weekend, the conspiracies will be flying out of Philly and Jacksonville. On the bright side for the Jags and Eagles, this is about the best bulletin board material possible to play the disrespect card. Advertisement There will always be a contingent of NFL fans that believe the league is rigged in a grand conspiracy to benefit the Patriots. The league only emboldened the tinfoil hat crowd when it posted a premature Super Bowl LI contest announcement to its official Facebook page.The post featured a graphic with Tom Brady and Case Keenum, and announced a Patriots/Vikings Super Bowl matchup. Oops. It has since been removed.last_img read more

first_img This hands-on workshop will give you the tools to authentically connect with an increasingly skeptical online audience. One of the best things you can do to help keep your PC and your private data safe is to stay abreast of the latest security alerts. But security news stories often contain techie jargon that can make your eyes glaze over faster than a congressional session on C-SPAN.To help you determine whether a particular alert is worthy of Chicken Little or is truly dangerous, here are translations for some of the most common threat terms.Drive-by download: A big one. If a program or operating system bug allows drive-by contamination, your PC can become infected with malware if you simply view a malicious Web site. You don’t have to download anything or click any links on the poisoned page.User interaction required: You might think that you’d have to download a file or open an attachment to get hit by an attack described in this way. But experts often apply the term to simply clicking a link that will deliver you to a page containing a drive-by download.Zero-day: Potentially major, but not always. This term most commonly refers to a flaw (and perhaps an attack exploiting it) that surfaces before a fix is available. If the attack is ongoing (see “in the wild”), watch out. But many alerts or stories play up zero-day flaws that aren’t being hit and may never be; see the next entry.Proof-of-concept: A flaw or attack that researchers have discovered but that bad guys have yet to exploit. If the alert says something like “proof-of-concept code has been released,” crooks are very likely to create a real attack with that sample. But many evil-sounding proof-of-concept attacks never get weaponized.In the wild: The opposite of proof-of-concept. When an exploit or malware is in the wild, digital desperados are actively using it. If the term is being used to describe attacks against a software flaw, make sure that you have installed the application’s latest patches.Remote code execution: This kind of flaw allows an attacker to run any command on the victim’s computer–such as installing remote-control software that can effectively take over a PC. Holes of this type are dangerous, so take notice when you hear of one.Denial of service: Not so bad. This term usually describes an attack that can crash a vulnerable program or computer (thereby denying you its service) but can’t install malware. Occasionally, however, crooks figure out how to transform a denial-of-service flaw into a concerted attack that allows remote code execution.Of course, your best bet is to apply security patches as they’re released, whether to fix a proof-of-concept denial-of-service flaw (yawn) or to address an urgent zero-day drive-by download threat. 3 min read Brought to you by PCWorld August 26, 2008 Enroll Now for Free Free Workshop | August 28: Get Better Engagement and Build Trust With Customers Nowlast_img read more

first_img Free Workshop | August 28: Get Better Engagement and Build Trust With Customers Now It has been a wild few months for 17-year-old British developer Nick D’Aloisio. His news gathering app, Summly, reached 500,000 users in December. Three months later, the app has been acquired by Yahoo Inc., the tech giant announced today on its blog. As a result of the deal, D’Aloisio and the Summly team will join Yahoo and the Summly app will be shut down. Summly allows users to skim and share news quickly, in short summaries. In the coming weeks, “you will see the technology come to life throughout Yahoo!’s mobile experiences,” Yahoo said.Terms of the deal were not disclosed. It’s expected to close sometime during the second quarter, according to Yahoo.D’Aloisio taught himself to code at age 12 and started developing iPhone apps in 2008. After launching Summly’s news-summarization mobile app, D’Aloisio received widespread attention from media and investors. Actor Ashton Kutcher and Zynga founder Marc Pincus are among its early angel investors and advisors.Rumors had circulated back in December that Yahoo was eyeing Summly for a potential acquisition. Last week, Yahoo aslo acquired recommendation app Jybe, which was co-founded by three former Yaahoo employees.Related: The New Cool Kids: Teenage-App Developers 2 min read Enroll Now for Freecenter_img This hands-on workshop will give you the tools to authentically connect with an increasingly skeptical online audience. March 25, 2013last_img read more

first_img 3 min read Enroll Now for Free Free Workshop | August 28: Get Better Engagement and Build Trust With Customers Now November 21, 2013center_img This hands-on workshop will give you the tools to authentically connect with an increasingly skeptical online audience. Despite being in the spotlight over recent battery fires, Tesla’s Model S electric car received the highest owner-satisfaction score in Consumer Reports’ annual survey.”Owners of the Tesla Model S gave it the highest owner-satisfaction score Consumer Reports has seen in years: 99 out of 100,” the magazine said in statement.Rounding out the top three were the Porsche Boxster with a score of 95, followed by the Chevrolet Volt and the Porsche 911, which both received a 91.This is hardly the first time the Model S has won rave reviews. The electronic car set a new record in August when it was awarded the best safety rating of any car ever tested by the National Highway Traffic Safety Administration (NHTSA). In May, Consumer Reports also acknowledged it was the best car ever tested, again getting a score of 99 out of 100. The Model S was also named car of the year by Motor Trend and Automobile magazine.Related: Elon Musk’s Tesla Continues Awards Tear for Model S Electric Car The latest award is a bit of good news for Elon Musk’s company, which has been under scrutiny after three Model S cars caught on fire in the last six weeks. On Tuesday, the NHTSA launched an investigation into the matter.Musk is not standing on the sidelines over these allegations. In a lengthy blog post, the CEO rebuffs safety concerns, stating drivers should be much more wary driving a car run on gasoline, as opposed to a battery.”Those metrics tell only part of the story. The far more deadly nature of a gasoline car fire deserves to be re-emphasized,” Musk writes. “Since the Model S went into production mid last year, there have been over 400 deaths and 1,200 serious injuries in the United States alone due to gasoline car fires, compared to zero deaths and zero injuries due to Tesla fires anywhere in the world.” Related: Tesla Nabs Apple Hardware Exec to Lead Vehicle DevelopmentWhile Musk’s blog defends Tesla’s track record, it does provide an outline of how the company plans on addressing safety issues. Tesla will roll out a suspension-adjustment software update, so there will be more room between the road and the car’s undercarriage. Musk also wrote Tesla requested the investigation probe mentioned above (NHTSA stated the inspection was independent), to quell consumer fears. If the agency recommends changes to improve safety standards, the electric company will act to implement these recommendations in all Tesla vehicles affected. Lastly, Musk stated Tesla will be changing its warranty to cover fire damage, even if it the driver’s fault. last_img read more

first_img Attend this free webinar and learn how you can maximize efficiency while getting the most critical things done right. 8 min read November 22, 2016 Register Now » Free Webinar | Sept 5: Tips and Tools for Making Progress Toward Important Goals The following excerpt is from Wendy Keller’s book Ultimate Guide to Platform Building. Buy it now from Amazon | Barnes & Noble | iTunesIf you’ve decided you want to create a video to promote your business, you need to ask yourself a few questions before you get started:Will your video be used to post on your branded YouTube channel, your website or another site in hopes of attracting more prospects?Will you use a video as a freemium to attract people or as a pre­mium to incentivize people to buy?Will you use it to train or teach someone how to get more out of your product or service?Do you want to create video blogs (called “vlogs”)?Will you use the video as an intro for new customers? For instance, will it be a welcome video that tells them how to access the informa­tion they just bought while giving them an opportunity to see your smiling face?Do you want people to pay you to view it, as one would for an online training?Once you’ve decided the purpose of your video, creating it will be easy.Related: How to Brainstorm Great Content for Your Marketing PlanFollow these 10 steps to successfully film your video:1. Recording decisions Decide how you’ll record your video. You can do it on your cell phone and even pick up a cheap selfie stick so you can hold your phone further from your body than you can with just your arm. The fancy ones come with a plug that makes it easier to press the on/off button while recording. I have a client who does several videos a week with just his smartphone and a selfie stick. If you decide to do it that way, you can skip several of the next steps.2. Equipment (camera, lights) If you plan to do a lot of videos and you want high quality, buy a good video camera. If you choose to buy a camera, also buy a lapel microphone with a 25-foot cord and a tripod.You also want to get yourself a three-light kit that has square lights. The three-light kits, which vary in price, are called “soft boxes,” and they come with a cover that you can put over the bulbs. This will save your eyes and make the lights easier to adjust to so you get just the effect you want.There are many excellent tutorials online about how to set up the lights and background. Look at some of the most popular videos on YouTube, and you’ll see the variety of ways people light themselves, how far they stand from the camera lens, and how much they move (not much in most cases!). Once you’ve figured out what lighting works best in your space, diagram the positions on a piece of paper so you can easily replicate what you have learned.If you’re not using a light kit, film in the daytime near a window. Put the camera between yourself and the window so your face is illuminated but it’s not so bright that it’s hard to see you. You don’t want to look washed out, and you don’t want the shadow of the camera to be on you or your background. Viewers want to be able to look in your eyes to judge your sincerity. The more that your audience can read your micro-gestures, the more you’ll prove your authority and sincerity.3. Where to film Decide where you want to film. Indoors? Outdoors? In a formal studio you create or rent? In front of something symbolic? Think about the background your audience will see. Is it interesting but not distracting? It’s better to not be flat against a wall, or to have anything reflective right behind you, e.g., a piece of framed artwork. Even though you may not see the glare, the camera will, especially if you’re using lights. It’s difficult to record outside, where your viewers will be hearing barking dogs, airplanes, cars, sirens, children and other people talking and because these same sounds may distract you. Unless it’s part of your brand to be outside, it’s probably better to do it inside a quiet space where you can control the ambient noise.Related: 3 Steps to Writing and Selling an eBook4. What to wear Think about the impression you want to make. The rule of thumb is to never wear stripes or small patterns (because they’ll show up blurry); solid bright red or orange (because it will wash you out when you add the effect of lights); or glittery eye shadow or lipstick. The clothes you choose will immediately convey a message.Light-skinned people should wear a dark contrasting color, especially near your face, especially if you’ll be filming against a pale or white background. Blue is always good. Consider adding a splash of a bright color, like a politician with a red tie. Darker-skinned people should consider pastels to highlight and attract attention to the face. The colors will show up slightly different on different computers, laptops, smartphones and other viewing devices.5. How to prepare your content Are you an off-the-cuff speaker who can talk passionately after just seeing some notes or bullet points? Or do you require a script or maybe even a teleprompter?I’m in the former group, so I take a gigantic white board and write in large letters the main points I want to cover in the video. I hang it just a little higher than the camera on the tripod — in the place where the eyes of the cameraman would be if there was one. Then I just glance at it to make sure I cover all my intended points in the right order. You could also use those flip charts that have sticky backgrounds and put them as cue cards on the wall behind your camera.You can rent a teleprompter (expensive) or set up your laptop or iPad to become one. There are many different apps and software programs available to do that. No matter what, the important detail when using notes, flip chart pages, a white board or a teleprompter is not to move your eyes back and forth as you read the lines.6. Countdown to action Look in a mirror before you start filming. Pretend you’re on your way to the most important meeting of your life. Do you look “right”? No sparkly stuff? A dab of makeup will cover that razor nick you got this morning or that pimple you were hoping wouldn’t happen. Do your eyes look awake? Take some deep breaths. Practice smiling widely.7. Camera settings Plug in the microphone, and turn on the record function. Get into position. I mark my position on the floor with a piece of tape, record a few moments of talking, replay it and check to be sure my background and I are both lit properly and focused. Delete the trial video to save space on your memory card, if you’re using one.8. Get ready to recordTurn on the microphone again. Get in the right position again. Take at least one slow deep breath. Smile and count to five slowly in your head. Look right into the camera or slightly above it. Start talking. If you flub somewhere, just go back to the last point you remember and start over. Remember to smile and count before you begin again. This will make it far easier to edit.9. Call-to-actionBe certain to end with some kind of call to action. It could be, “Go to our website at www.[whateveritis].com to learn more” or “Get your free copy of my ebook [title] by clicking here now…” Or “To find out more, call the number on your screen.”10. Polishing and profiting from your video content Now you can transfer the video to a computer or a thumb drive. When you’re done, you can render the video through a variety of programs. We use a simple editing program called Wondershare. I found it very easy to learn and use.If you feel nervous or don’t want to attempt film editing, I suggest you place an ad on www.Fiverr.com, www.UpWork.com and on www.Craigslist.org for an experienced film editor. Check some samples of the editor’s work. When you’ve found the right person, you can give them the file and have it properly edited without learning any new software yourself. Note: Always make sure you keep the original file for yourself, just in case.Related: Creating a Podcast That Bring in More BusinessNow upload it to the server so the public can see it. We host our videos on Vimeo, then take the embed link and stick it on YouTube, in our Wishlist component on one of our WordPress websites, on LeadPages or actually onto a page on the website, depending on how we want our customer or prospect to see it.  This is how you can easily create video content. Now you can use and repurpose it however you desire. Opinions expressed by Entrepreneur contributors are their own.last_img read more

first_img 7 min read This hands-on workshop will give you the tools to authentically connect with an increasingly skeptical online audience. Consumer-driven businesses need to stay on top of emerging technology, especially when they compete with giants like Amazon. And, in that context, sthe latest tools to attract and retain customers are wi-fi analytics and automated marketing platforms.Related: Effective Marketing Appeals to Emotions Instead of ReasonThese platforms provide brick-and-mortar retailers and restaurants advantages similar to those that the big online retailers enjoy, for collecting and using customer data for marketing.Capturing customer information and personalizing the customer experience, after all, are the ways forward for retail and hospitality businesses. And a big part of this is triggered marketing.So, what exactly is triggered marketing?Some businesses confuse “triggered marketing” with loyalty programs and mobile apps. Certainly those efforts help drive traffic. But they lose some of their potential effectiveness when treated as stand-alone tactics, because for a loyalty program to be effective, customers first need to download your app or register. When it comes to the plethora of online marketing tactics, then, the sum of all the parts is not nearly equal to the whole. Instead, the key is to align all digital marketing strategies under one umbrella solution that maximizes the reach and potential of each.Baking analytics into your marketing mixHere is where wi-fi analytics and automated marketing programs level the marketing playing field — with new ways to attract and retain customers.Specifically, wi-fi analytics and automated marketing platforms include three services: capturing customer data, analyzing the data and then delivering personalized content. Take the example of the Atlanta Bread Company (ABC), a 27-location chain that credits analytics and automated marketing for an increase in its companywide sales.In the past, the missing link between traditional and digital marketing had to do with collecting the actual data that allowed a business to personalize its communication with customers in order to improve that relationship. Using data analytics, however, ABC has collected 33,000 customer email addresses automatically.  More importantly, it’s gained the ability to market to each one of those customers, based on his or her individual behavior.Danny DinerConsider the fictional case of “Danny Diner.” Danny comes into his neighborhood Atlanta Bread Company store every Monday and Thursday at around 10 a.m., logs onto ABC’s wi-fi and stays for an hour. How does the company know this?  Its “smart” wi-fi tracks Danny’s behavior. This means that ABC can send Danny a deal to his phone at 10:10 every Monday morning, offering him $2 off a muffin and thereby increasing the likelihood that he will in fact, order a muffin.Related: How Big Data Analytics Is Solving Big Advertiser ProblemsThat is how and why capturing customer profiles and tracking these individuals’ behavior provides the chain restaurant with an opportunity to personalize its target marketing.Knowing that Danny spends an hour using ABC wi-fi indicates his interest in the restaurant as a destination, where he is comfortable sitting and doing work. This lets ABC tell its brand story in a way that resonates with Danny himself, highlighting its comfortable seating and wi-fi speed.In contrast, “Carol Caffeinator” dashes in to ABC and dashes right out again with her coffee every morning at 8. Catching Carol with a triggered daily deal at 7:45 am for an extra-large cup o ’joe will up her daily spend at ABC. That’s how communicating on a one-to-one basis with actual customers, based on their real-life needs, is a way to increase revenue and maintain their loyalty.But, back to DannyWhy does he come in only twice a week? How does ABC increase this customer’s frequency by using real-time intelligence? Seems as though ABC has a real opportunity to truly individualize Danny’s experience and deliver dynamic marketing content to attract him other days of the week too. A deal sent to Danny on Monday offering him a discounted breakfast on Tuesday might get him to come in another day during the week.Social media is the new word of mouth, and ABC can encourage Danny to share marketing content with friends and friends of friends. Perhaps he’d like to share his Tuesday breakfast deal with friends, to meet up with him to enjoy a meal and surf the web together. If Danny is inclined to tell his friends more about ABC, he might post a review through the ABC wi-fi landing page. In fact, ABC actually generated 5,000 customer reviews through its wi-fi marketing efforts.But . . . uh oh. Danny hasn’t been at ABC for a while. And here again, wi-fi analytics can help by rescuing at-risk customers like him by knowing who they are, how and when they dine. If Danny has decided to spend his mornings elsewhere, ABC can trigger deals to bring him back and maintain his loyalty.What you need to knowIf you want to know how and when you should market to individual customers,you need to know what they do when they’re at your location. One factor that wi-fi  presence-analytics measures is average dwell time at the physical location. This directly influences how and when to market to these customers.Sending the offer for a muffin deal while Danny is enjoying his coffee at ABC is much more effective than sending it when he’s home and about to have dinner. Another way to improve operational efficiencies? The answers you obtain to these questions:How long do diners take to enjoy their meal?How much time did it take for them to complete their meal or shopping?How likely is it that an average customer will return?What is each customer’s projected lifetime value?What’s better than standard wi-fi?The answer to the last question lies at the core of analytics and triggered marketing: It’s smart Wi-Fi. Having the ability to engage customers like Danny and Carol at physical locations is an exciting new way to communicate with them and be at the center of their dining experience.The overwhelming majority of consumers keep their mobile phones with them at all times. So, business should use smart wi-fi with marketing-automation platform triggers. That will mean that when Danny is at ABC checking his phone text, the restaurant can grab his immediate attention. In short: Give Danny a deal for tomorrow’s breakfast and he just might share it on his Facebook newsfeed.Get Danny’s interest while he’s on the premises, and he’ll be back.Smart wi-fi marketing reaps benefits beyond that of the usual on-premises experience. When customers register for in-restaurant or in-store wi-fi, that action enables customer-profile collection and simplifies third-party application onboarding, a.k.a. downloading the restaurant’s app. Therefore, using smart wi-fi enables a business to:Encourage customer reviewsDrive social media engagementFrom the sales perspective, smart wi-fi enables:Point of sales marketingFuture event marketingData collectionOn that last point, once a customer is registered, data is collected whether he or she logs in or not. In addition, the restaurant or retailer is able to interact with a customer who does not have the locations mobile app installed.Although online giants may have had the initial capabilities to leverage automated marketing, restaurants and brick-and-mortar retailers have even more opportunities to market to guests because they have the physical presence of the customer.Customers like Danny Diner and Carol Caffeinator who have made the effort to go to the location are more committed to the brand at a personal level. From the business’s perspective, then, it’s important to leverage this loyalty in every way possible, which is why knowing who that customer is and why learning about his or her behavior is so important to the marketing mix.Related: 10 Tools Helping Companies Manage Big Marketing DataHence, the importance of triggered marketing: Going the additional step to offer customers this type of deal, which will continue to engage their interest even after they leave is what will ensure return visits. And, that’s what wi-fi analytics and triggered marketing are all about. Free Workshop | August 28: Get Better Engagement and Build Trust With Customers Now Opinions expressed by Entrepreneur contributors are their own. November 9, 2017 Enroll Now for Freelast_img read more

first_imgKB3199209 yet another Windows 10 patch without information by Martin Brinkmann on October 18, 2016 in Windows – Last Update: July 05, 2017 – 44 commentsMicrosoft released a new update for its Windows 10 operating system today under KB3199209. If you run the release version of windows 10 and have installed the Anniversary Update already, then you may see the new update when you run a check for updates on the operating system the next time.The update’s full title is Update for Windows 10 Version 1607 for x64-based Systems (KB3199209), at least on 64-bit versions of Windows.While it installs just fine, and there is no restart either, it lacks any information whatsoever other than its Knowledgebase ID and title.Update: Microsoft published information more than ten hours after the update rolled out.  It is a Servicing stack update for Windows 10 Version 1607: October 18, 2016 which improves the stability of the servicing stack.If you try to open the support article on the Microsoft website, you get a “try searching for what you need. This page does not exist” error message.I have complained about that issue before: Microsoft has the habit of releasing updates for its operating systems before it publishes the support articles.While that is not a problem for users who install any update the company puts out, it is highly problematic for users and administrators who want to know what an update is all about.Since there is no way of finding out what an update does, it is virtually impossible to ensure that it won’t have a negative effect on a computer system.While you can install it and hope for the best, you cannot possible test all programs and features on a Windows 10 machine after installing the update to make sure it did not take down any functionality or modify it.So what is the KB3199209 update for Windows 10 changing? We don’t know at this point in time, and won’t know until Microsoft publishes that support page.Some users noticed that Windows Defender’s real-time protection has been enabled after running the update, even with third-party antivirus software running on the system.We will update the article once we know more (which will probably be when Microsoft publishes the support page.Now You: How do you handle Windows updates? Do you research each update before you install it?SummaryArticle NameKB3199209 yet another Windows 10 patch without informationDescriptionMicrosoft released a new update for its Windows 10 operating system today under KB3199209 but has yet to publish the support page that describes what it does.Author Martin BrinkmannPublisher Ghacks Technology NewsLogo Advertisementlast_img read more