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According to TESLARATI.com (This article and its images were originally posted on TESLARATI.com September 24, 2018 at 03:42AM.)
Posted on
Indie app developer Moshen Chan has been an avid BMW enthusiast for ~20 years. Having a passion for high-speed driving, he has spent a lot of time experiencing the legacy automaker’s Ultimate Driving Machines firsthand. Moshen now drives a Tesla Model 3 Performance, after a test drive with the electric sedan proved that it was a powerful, feature-ridden, and compelling vehicle that could very well be beyond anything that the German veteran automaker currently has to offer.
The indie app developer shared his experience in a series of lengthy posts on a BMW forum, Bimmerfest.com. Chan notes that over the years, he has driven several BMWs, and today, he owns a modified E36 325i with track suspension setup, as well as an E82 135i with Performance Suspension and several other M3 suspension part upgrades. Being in the market for a new vehicle, he was looking at the BMW M2 Competition, the latest iteration of the BMW M3, and lastly, the Tesla Model 3 Performance.
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This article and images were originally posted on [TESLARATI.com] September 24, 2018 at 03:42AM. Credit to the original author and TESLARATI.com | ESIST.T>G>S Recommended Articles Of The Day.
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Your daily selection of the hottest trending tech news!
According to Electrek (This article and its images were originally posted on Electrek July 6, 2018 at 11:40AM.)
Tesla opened the floodgates for Model 3 Performance version orders last week and deliveries are expected shortly.
Now the automaker has released the first video of a Model 3 Performance version burning some tires during testing.
The Model 3 is already fairly light for an all-electric long-range vehicle and now Tesla is adding some power to it with an additional front motor and higher-rated rear motor for the Performance version.
With a few other modifications, the vehicle is expected to be competitive as a mid-size performance sedan.
The Model 3 Performance version features the same motors (AC in the front and permanent magnet in the rear) as the dual version, but they are picking the highest rated ones with double the burn-in process to make sure they can handle a higher output.
CEO Elon Musk also said that the performance version will feature 20” Performance wheels. He claimed it will be 15% quicker than the BMW M3 and with better handling, and “will beat anything in its class on the track.”
We don’t know much more than that about the newest version of the Model 3, but now Tesla is giving us a glimpse at it with the first footage of the vehicle during skidpad testing:
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This article and images were originally posted on [Electrek] July 6, 2018 at 11:40AM. Credit to Author Fred Lambert and Electrek | ESIST.T>G>S Recommended Articles Of The Day.
It included bringing up the new general assembly line that Tesla is building up under a giant new tent at the Fremont factory.
While they are still working on increasing production, Musk has now confirmed that the line is up and running as it just produced the “first Model 3 dual motor performance.”
The CEO released the following picture of the Performance Model 3 off the assembly line:
We can see the red brake calipers and the new white interior, which is first only available with the Performance version of the Model 3.
The performance version features the same motors (AC in the front and permanent magnet in the rear) as the dual version, but they are picking the highest rated ones with double the burn-in process to make sure they can handle a higher output.
Musk also said that the performance version will feature 20” Performance wheels. He claimed it will be 15% quicker than the BMW M3 and with better handling, and “will beat anything in its class on the track.”
Here are the other details of the Model 3 performance version announced last month:
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This article and images were originally posted on [Electrek] June 16, 2018 at 04:39PM. Credit to Author Fred Lambert@FredericLambert and Electrek | ESIST.T>G>S Recommended Articles Of The Day.
Your daily selection of the hottest trending tech news!
According to Engadget (This article and its images were originally posted on Engadget June 4, 2018 at 01:24PM.)
As expected from Apple’s developer-focused showcase here at WWDC, here’s your first glimpse of iOS 12. Previewing what’s headed to your iPhone (and iPad) later this year, it might not look all that different. CEO Tim Cook teased that the customer at the center of everything — and perhaps nothing illustrates it better than its updated mobile OS. Craig Federighi noted that iOS 12 will be supported by all the same devices that iOS 11 ran on — it’s the biggest range of supported devices yet.
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This article and images were originally posted on [Engadget] June 4, 2018 at 01:24PM. Credit to Author and Engadget | ESIST.T>G>S Recommended Articles Of The Day.
Your daily selection of the latest crowdfunding projects!
According to indiegogo.com
The Mini PC, Full Sized Performance
Newly announced 8th-Gen Intel Core i7 / i5 processor delivers great performance (up to 40% faster than 7th-Gen) for enthusiast gaming, advanced content creation and immersive home entertainment. Shaved away every unneeded centimeter, Chuwi HiGame creates an ultra compact and stylish design.
Upgrade-friendly 8GB Memory & 256GB Storage
With 8GB DDR4 memory and 256GB SSD storage, you can enjoy faster and smoother multitask computing. Need more RAM or storage? We have also provided you with the extra slots to get these upgrades.
Do More With Flexible Input / Output Ports
Designed with Thunderbolt 3, USB 3.0, Gigabit Ethernet, HDMI 2.0, and DisplayPort 1.3, Chuwi HiGame can equip you with all kinds of connections for different types of peripherals.
Delivering up to 1.13x higher performance than Nvidia GTX 1060 Max-Q (6GB)
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This article and images were originally posted on [indiegogo.com ] May 31, 2018 at 09:06AM. Credit to Author and indiegogo.com | ESIST.T>G>S Recommended Articles Of The Day
For limited time only, save 16% on the Rotolight NEO-II dropping from $1,599.98 to $1,349.98 when you buy this item at Adorama.com and Shipping is free!
NEO 2 is a revolutionary LED light, that combines the ‘shoot what you see’ benefits of continuous light, with the flexibility of High Speed Sync (HSS) flash, for more power or to freeze action. With no recycle time, you’ll never miss a shot. Designed for portrait photographers and videographers on the go, NEO 2 is lightweight and portable, and can be mounted both on or off camera. A built in Elinchrom Skyport flash receiver, delivers ultra reliable wireless triggering(1/8000th) up to 200m(656ft). Powered by 6 AA batteries, DC or Dtap, NEO 2 delivers outstanding colour reproduction, with a gorgeous soft light output and Rotolight’s signature catch light effect. Packed with innovative features, NEO 2 includes True Aperture Dimming, Designer Fade and an updated arsenal of CineSFX custom lighting effects (Lightning, Fire,TV etc.). 85% brighter in continuous mode than its predecessor, NEO 2 is a small light that delivers big results
NEO 2 also includes a powerful suite of Rotolight’s patented industry first features, to maximize creative possibilities, and streamline your workflow:
• High Speed Sync Flash (HSS) provides a powerful HSS flash mode when you need more power, with zero recycle time, at up to 500%* of the maximum continuous light output for photographers. Enabling you to ‘freeze action’, and shoot at wider apertures for better subject isolation, Neo 2 eliminates the need to buy two separate products if you shoot both stills and video, as it provides an all-in-one solution.
• Unrivalled battery performance The longest battery life of an on camera flash ever made. NEO 2 provides 85,000 full power shots on a single set of AA batteries (not included) vs 250 of a typical speedlite. You’ll never be down on the job
• AccuColour LED technology ensures the NEO 2 delivers exceptional colour rendering for gorgeous skin tones (CRI:96+, TLCI 91) eliminating the need for post processing.
• True Aperture Dimming calculates and displays F-stop for a subject at a given distance, eliminating the need for trial and error shooting, or a light meter.
• CineSFX provides a suite of customizable cinematic lighting effects, such as lightning, fire, gunshot, paparazzi and TV flicke r to enhance your video production
• Designer Fade provides custom fade up/down production effects for interviews.
*500% increase in flash power on Rotolight V battery or PSU, 250% flash power on AA(Nimh or Lithium ion)
Rotolight NEO-II Features
Designed for Portrait/location photo & Video
Continuous LED light & high speed sync flash (1/8000th)
Built in Elinchrom Skyport wireless flash receiver (200m/656ft), control up to 10 lights in 4 groups.
Adjustable Colour Temperature (6300-3150K) in continuous & flash mode
Powerful soft output (2000lux at 3 ft), 85% brighter than NEO 1
Flash mode provides 500% more light output(mains power), 250% on AA (NiMh or Li-ion) batteries.
No recycle time, no power loss. Ideal for high frame rate cameras.
Unrivalled battery performance – 85,000 full power flashes on 6 x AA (NiMH or Li-Ion) (or 1.5 hours continuous output at max power).
Outstanding colour accuracy (CRI 96) for gorgeous skin tone
Power by 6xAA(NiMh or Li-ion), DC or Dtap, mount on or off camera
Best in Class Color Rendering CRI = 96 & R15 Skintone = 99
TLCI (Television Lighting Consistency Index) = 91 Ideally suited for professional Television use
Colour Range
3150 Kelvin – 6300 Kelvin, integrated accurate Kelvin display.
Control
Local, Wirelessly (using in built ‘Skyport’ flash receiver and Rotolight HSS transmitter by Elinchrom), or with third party HSS flash trigger received with 3.5mm or PC sync socket. For best results use the Rotolight HSS transmitter by Elinchrom.
Power
6 x AA (NiMH or Lithium-ion) high performance batteries provides 85,000 flashes at full power, or 1.5 hours continuous run time (max power) (Rotolight Lionheart AA by Powerex PRO recommended)
Mounting
Integral ¼” – 20 tripod mount (x3)
Universal Hot-Shoe Camera adapter mount included
LED’s
100,000 hour LED lifespan – Totally Flicker Free Technology
3 feet (0.9m)
Lux: 2000
Foot candles (fc) : 194
Lumen : 1032
fStop at ISO 200/400/800 : f8/ f11/ f16 (HSS Flash mode *)
*(Measured at 4110 Kelvin, PSU powered, at 1/60th )
6 feet (1.8m)
Lux: 510
Foot candles (fc) : 49
fStop at ISO 200/400/800 : f4/ f5.6/ f8.0 (HSS Flash mode*)
*(Measured at 4110 Kelvin, PSU powered, at 1/60th )
9 feet (2.7m)
Lux: 227
Foot candles (fc) : 21
fStop at ISO 200/400/800 : f2.8 / 4.0/ f5.6 (HSS Flash mode)
*(Measured at Peak output 4110 Kelvin, PSU powered, at 1/60th )
Get this Profoto B1 500 Air, normally $2,095.00, on sale at $1,895.00 for a total savings of $200.00 and Shipping is free!
The Profoto B1 500 AirTTL Battery Powered Monolight Flash makes it easier than ever to take the flash off your camera. With AirTTL you set the light in a flash. With battery power and a clever design with no cables or cords, you can take the B1 with you wherever you go and put it wherever you want. Add to that the power, speed and light shaping possibilities that Profoto lights are known for, and you have an off-camera flash that makes great light easy.
The B1 has the same dense, durable polymer housing, integrated 77-degree reflector, built-in receiver compatible with Air transmitters and intuitive highly visible controls and display as the D1 but with two striking differences – battery power and TTL camera/flash integration. Photographers can set up their lights, slip the optional Air Remote TTL-C transmitter onto their camera’s hot shoe without taking a reading and testing. Traditionally point-and-shoot would be a suspect term for a pro, but not if you’re shooting back to back jobs.
The key to this control is the Air Remote TTL-C transmitter for Canon DSLRS operating on 2.4GHz band width, the transmitter, really a controller, has 8 frequency channels and with 3 groups per channel and a range of up to 330ft. for TTL triggering and 1,000ft. for normal triggering. Each channel has power ratio capability of +/- 2 stops. The TTL-C and the B1 500 Air TTL have mini-USB connectors for firmware updates directly from Profoto’s website. The head can be triggered by any Air Remote but requires the TTL-C for full functionality.
The B1 recycles in 0.1 to 1.9 seconds but can deliver up to 20 flashes per second in Quick Burst Mode, flash duration in Normal Mode is a very fast 1/1000 sec but there’s also a Freeze Mode that delivers flash durations a short as 1/19,000 sec. The modeling light has also been upgraded to LED to put less strain on the battery and provide the equivalent output of a 70W halogen bulb. The B1 500 AirTTL employs a exchangeable Lithium-ion battery that gets up to 220 flashes on a 2-hour charge with the included 2.8A charger or a 1-hour charge with an optional 4.5A quick charger. The Battery has fuel gauge-type LEDs that make monitoring remaining power easy. B1’s the back panel has been upgraded with a large, bright LCD screen that informs the user of the flash’s power level, radio channel and group, sync choice, modeling light mode and recycle alert. There’s also a large battery gauge that literally can be read from 20′ away. The B1 500 TTL comes with protective cap, 2.8A charger and a soft case.
Profoto B1 500 Air Features
The B1’s patent-pending technology fully integrates the flash head with your Canon camera. The integration is so complete that Profoto sometimes refers to the B1 as an “off-camera flash.” The key to this control is the Air Remote TTL-C
It has 8 frequency channels with 3 groups per channel and a range of up to 330′ for TTL triggering. Each channel has power ratio capability of +/- 2 stops in TTL or +/- 9 stops in manual. Modeling light, shut-down of the unit and first or rear curtain exposure can also be selected
The B1’s Lithium-ion battery gives you up to 220 full power flashes and thousands of minimum power flashes on a 2-hour charge from the provided 2.8A multi-voltage charger. An optional 4.5A quick charger shortens that time to 1 hour
In Normal Mode, which prioritizes color fidelity, the B1 500 AirTTL is capable of t0.5 flash durations of 1/11,000 sec. at minimum power, and 1/1,000 sec. at full power
Freeze Mode automatically selects the shortest flash duration possible at the user-selected power level. Motion-stopping flash durations of 1/19,000 at minimum power make the B1 500 AirTTL ideal for high speed shooting
At lower power settings Quick Burst Mode allows a series of flashes to be fired at a faster pace than the B1 can recharge, allowing triggering of up to 20 frames per second
A 20W LED modeling light with a 70W tungsten-equivalent output draws very little power from the battery and generates minimal heat. The light can be set to proportional or full power and will dim during recycling if that option is selected
The B1’s control panel has been upgraded with a 1.4 x 2.5″ bright LCD screen that informs the user of the flash’s Power level, sync choice, modeling light mode and recycle alert. There’s also a large battery gauge that literally can be read from 20′ away
Both the flash head and the Air Remote TTL-C have mini-USB connections for firmware updates directly from Profoto’s website
Power can be regulated over a 9-stop range (2.0 – 500W/s / 1/256 – 1/1) in 1/10 or 1-stop increments
With its zoom scale and integrated umbrella sleeve, the B1 500 AirTTL is compatible with Profoto’s extensive line of umbrellas, reflectors and softboxes
For limited time only, save 17% on the Interfit Photographic Honey Badger 320 dropping from $299.99 to $249.99 when you buy this item at Adorama.com and Shipping is free!
The Guinness Book of World Records named the Honey Badger the “World’s Most Fearless Creature”. Their powerful physical features, speed, intelligence and general aggressive demeanor combine to make one ferocious little powerhouse that is known to give even top predators a run for their money! We could think of no better namesake for our new light. Our Honey Badger is a compact, 320Ws studio flash head equipped with the speed, power and versatility that every photographer needs to attack their next shoot
The Honey Badger has a built-in wireless receiver that accepts signals from a separately purchased S1 manual or TTL transmitters that can not only wirelessly trigger the flash, but control power level, modeling light, and the beep indicator for full recycling. The light has a Bowens S-Type front accessory mount making it compatible with the many manufacturers that produce products with this mount. The Honey Badger also has a built-in pop-up softbox ring that makes for very fast setup with the included 24 x 24″ softbox. Lightweight with a small form factor and impressive performance, the Honey Badger is hard to beat.
Compact Form Factor
The ability to travel with lighting is crucial for the mobile photographer and size and weight matter. The Honey Badger weighs just 3lbs, measures 5″ wide (6″ including the outer ring) and 6″ deep from the back panel to the edge of the protective cap, making it one of the most compact self-contained studio flash heads on the market. The robust and compact housing makes the Honey Badger the ideal solution for photographers on the move.
Fast Recycle Time
At full power, the Honey Badger recycles in an impressive 1 second. Recycle times get shorter and shorter as you decrease flash power.
Short Flash Duration
Short flash durations give us the ability to freeze motion beyond the capabilities of our shutter sync speed. At full power, the Honey Badger has a t.1 flash duration of 1/900.
60W LED Modeling Lamp
The Honey Badger is equipped with a 60W LED modeling lamp with the equivalent light output of a 300W tungsten lamp. This flicker-free LED can be used as a continuous light source for both photo and video purposes. The modeling lamp can be set to adjust proportionately to the flash power or to full power. The color temperature was intentionally set to 5600K (daylight), to accurately portray the color of the light from the flash.
Never Miss an expression
Always quick to respond, impressive recycle speeds allow the Honey Badger to keep up with your fast paced shooting, even at full power.
The stopping power of the Honey badger’s short flash durations allow you to freeze motion and create dynamic images.
Built-in Radio Receiver
The Honey Badger features a built-in radio receiver that is compatible with all S1 TTL Remotes and S1 Manual remote. This allows full control over the lights’ power range, modeling lamp and beep function. When using the new S1 Manual remote, the Honey Badger can be adjusted individually via 8 different control groups (A-H), across 15 different channels (1-15). This allows for intricate multi-light setups and negates interference from neighboring photographers.
Versatile Modifier Mount
The most unique feature of the Honey Badger is the versatile modifier mount. The Honey Badger utilizes the popular Bowens S-Type modifier mount, making it compatible with the same modifiers as the S1. In addition, the Honey Badger also features a built-in pop-up softbox ring for use with pop-up style softboxes that are popular with speedlight shooters. The idea behind this feature is to allow photographers to grow into their studio lights by allowing them to use some of the existing modifiers they may already have purchased for speedlights.
Included Pop-Up Softbox
Every Honey Badger includes a 24″ pop-up softbox with an inner and outer diffuser. This style of softbox does not require any setup and folds away quickly and compactly.
Glass Dome Diffuser
The Honey Badger includes a frosted glass dome diffuser. This protects the flash tube and helps to spread light evenly throughout the modifier.
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This article and images were originally posted on [ESIST] Oct, 25 2017
ESIST may receive a commission for any purchases made through our affiliate links. All commissions made will be used to support and expand ESIST.Tech
Swiss Audio – The First Personalized Premium HiFi Wireless Earbuds
Swiss Audio Wireless HiFi Earbuds, the first to offer ultimate personalized HiFi sound matching your exact hearing profile.
Our patented Swiss Audio algorithm and equalizer are able to compensate and correct any hearing imperfection in selected frequencies.
Feel the emotion the way the artists intended to, with the most advanced audio technology. Uncover the most beautiful masterpieces of music and experience all the details like never before.
Everybodies ears are unique. With Audiology Experts, we created an Audiology Test as part of the companion app. The Audiology Test takes a few minutes and you create your unique hearing sound profile. It is the ultimate personalization of your Swiss Audio Wireless Hifi Earbuds. Our Swiss Audio algorithm will compensate any hearing imperfections in selected frequencies. You’ll be able to listen to your favorite songs like never before.
Be the maestro of your sound using our fully customizable 7 band equalizer and create your unique sound signature.
Swiss Audio HiFi Premium sound quality has an unique sound signature with powerful basses and crystalline highs. We successfully reached a perfect frequency response by using the best-in-class balanced armature speaker together with high performance electronics.
We’ve been working with professionals in the music industry. They gave us regular feedback on prototypes and helped us to get closer and closer to the ultimate superior sound experience.
A frequency response tailored to the human ear
The frequency response have been designed to match the loudness ear sensitivity and the in-ear canal sound sensation.
Precise and Powerful Bass
In order to deliver powerful bass, the balanced armature speaker requires as much air volume as possible. It’s why we choose to maximize the ear volume using a vent hole balanced armature.
Medium Frequencies adapted to in-ear canal diffusion
By inserting an earbud in the ear canal, acoustics of the human ear are changed and need to be compensated by the earbud frequency response. Contrary to dynamic drivers, balanced armature are tailored with such shape in order to have a flat frequency response sensation. The high frequency response is designed to follow the natural ear sensitivity.
There are many ear shapes and sizes. The challenge we faced on the ergonomic side was to find the design that is the best fit for each Swiss Audio customer. We used the mix between the ear physiology theory, hundreds of molded ears prototypes, and the professional experience of our professional audiologist experts. We designed our HiFi Wireless Earbuds to fit securely and comfortably, giving you the unlimited freedom of movement you deserve. The shape and nine soft tips have been designed to fit every type of ear.
Swiss Audio engineered an audio-transparency algorithm to offer you the best active listening system. You can fully configure Audio Transparency to hear the world around you and set the noise volume to fit your needs. Or you can decide to remove all the environment noise to enjoy your ultimate music experience. You switch modes easily with just one click.
Improve your experience by adding personal hearing profile for different environments. Rediscover your favorite songs like never before. Say goodbye to prescribed sound settings built into your headphones and create your own superior sound experience.
Swiss HiFi Earbuds are fully compatible with Siri, Google now and Alexa. Use your preferred personal assistant to check the weather, search an information, text a friend or call your family with just one click.
Take Swiss Audio HiFi Wireless Earbuds where you want with our magnificent luxury charging case and get 48 hours playtime on the go. Charge your earbuds up to 12 times, with fast charge. Each charge corresponds to 4 hours of streaming.
Swiss Audio HiFi Earbuds
Wooden Charging Case
3 sizes classic EarTips
3 sizes double flange EarTips
3 sizes foam EarTips
Micro USB Cable
GENEVA SWITZERLAND
From the first research steps to the development and design, our products embody Swiss quality thinking and standards. We work on a local basis with Swiss workforce, from the watchmaking and electronics industry to help us design and manufacture fine mechanic and electronic products in an optimal time.
DESIGN & DEVELOPMENT
Our R&D team works together with Swiss research laboratories to push the boundaries of audio processing algorithms, ergonomics and wireless technologies.
SWISS PRECISION
We use the best components available, all put together in the smallest space, to design our earbuds without compromising on the audio quality. An entire year of work has been needed to our technical team to put together this piece of jewelry. Balanced armature, microphone, antennas, battery, connectors, …, every component has its optimal space.
The initial idea came from the founders with long experience and passion in music recording, music mixing, high-tech and high precision.
Our team gathers experts in multiple domains such as Audio, Musical Instruments, Medical Devices, Watchmaking, New Technologies… The founders have more than 50 years of experience in tech, high end product design and manufacturing.
We combine Swiss precision and audiology technology. Our goal is to achieve the best sound quality wireless earbuds, the most personalized sound experience and the best ergonomic fit.
We are all audiophiles here. Every member of our team participates in the product cycle from conception to fulfillment. We develop the kind of product we would love to have ourselves. Being at the cutting edge of technology, we constantly reinvent ourselves and the way we live with music.
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This article and images were originally posted on [New Projects] September 19, 2017 at 01:07PM
In the semiconductor industry, there is currently one main strategy for improving the speed and efficiency of devices: scale down the device dimensions in order to fit more transistors onto a computer chip, in accordance with Moore’s law. However, the number of transistors on a computer chip cannot exponentially increase forever, and this is motivating researchers to look for other ways to improve semiconductor technologies.
In a new study published in Nanotechnology, a team of researchers at SUNY-Polytechnic Institute in Albany, New York, has suggested that combining multiple functions in a single semiconductor device can improve device functionality and reduce fabrication complexity, thereby providing an alternative to scaling down the device’s dimensions as the only method to improve functionality.
To demonstrate, the researchers designed and fabricated a reconfigurable device that can morph into three fundamental semiconductor devices: a p-n diode (which functions as a rectifier, for converting alternating current to direct current), a MOSFET (for switching), and a bipolar junction transistor (or BJT, for current amplification).
“We are able to demonstrate the three most important semiconductor devices (p-n diode, MOSFET, and BJT) using a single reconfigurable device,” coauthor Ji Ung Lee at the SUNY-Polytechnic Institute told Phys.org. “While these devices can be fabricated individually in modern semiconductor fabrication facilities, often requiring complex integration schemes if they are to be combined, we can form a single device that can perform the functions of all three devices.”
The multifunctional device is made of two-dimensional tungsten diselenide (WSe2), a recently discovered transition metal dichalcogenide semiconductor. This class of materials is promising for electronics applications because the bandgap is tunable by controlling the thickness, and it is a direct bandgap in single layer form. The bandgap is one of the advantages of 2D transition metal dichalcogenides over graphene, which has zero bandgap.
In order to integrate multiple functions into a single device, the researchers developed a new doping technique. Since WSe2 is such a new material, until now there has been a lack of doping techniques. Through doping, the researchers could realize properties such as ambipolar conduction, which is the ability to conduct both electrons and holes under different conditions. The doping technique also means that all three of the functionalities are surface-conducting devices, which offers a single, straightforward way of evaluating their performance.
“Instead of using traditional semiconductor fabrication techniques that can only form fixed devices, we use gates to dope,” Lee said. “These gates can dynamically change which carriers (electrons or holes) flow through the semiconductor. This ability to change allows the reconfigurable device to perform multiple functions.
“In addition to implementing these devices, the reconfigurable device can potentially implement certain logic functions more compactly and efficiently. This is because adding gates, as we have done, can save overall area and enable more efficient computing.”
In the future, the researchers plan to further investigate the applications of these multifunctional devices.
“We hope to build complex computer circuits with fewer device elements than those using the current semiconductor fabrication process,” Lee said. “This will demonstrate the scalability of our device for the post-CMOS era.”
More information:
Prathamesh Dhakras, Pratik Agnihotri, and Ji Ung Lee. “Three fundamental devices in one: a reconfigurable multifunctional device in two-dimensional WSe2.” Nanotechnology. DOI: 10.1088/1361-6528/aa7350
A graphene field-effect transistor, or GFET, developed at Purdue University could bring high-performance photodetectors for various potential applications. Credit: Purdue University image/Erin Easterling
Researchers have solved a problem hindering development of highly sensitive optical devices made of a material called graphene, an advance that could bring applications from imaging and displays to sensors and high-speed communications.
Graphene is an extremely thin layer of carbon that is promising for optoelectronics, and researchers are trying to develop graphene-based photodetectors, devices that are critical for many technologies. However, typical photodetectors made of graphene have only a small area that is sensitive to light, limiting their performance.
Now, researchers have solved the problem by combining graphene with a comparatively much larger silicon carbide substrate, creating graphene field-effect transistors, or GFETs, which can be activated by light, said Yong Chen, a Purdue University professor of physics and astronomy and electrical and computer engineering, and director of the Purdue Quantum Center.
High-performance photodetectors might be useful for applications including high-speed communications and ultra-sensitive cameras for astrophysics, as well as sensing applications and wearable electronics. Arrays of the graphene-based transistors might bring high-resolution imaging and displays.
“In most cameras you need lots of pixels,” said Igor Jovanovic, a professor of nuclear engineering and radiological sciences at the University of Michigan. “However, our approach could make possible a very sensitive camera where you have relatively few pixels but still have high resolution.”
New findings are detailed in a research paper appearing this week in the journal Nature Nanotechnology. The work was performed by researchers at Purdue, the University of Michigan and Pennsylvania State University.
“In typical graphene-based photodetectors demonstrated so far, the photoresponse only comes from specific locations near graphene over an area much smaller than the device size,” Jovanovic said. “However, for many optoelectronic device applications, it is desirable to obtain photoresponse and positional sensitivity over a much larger area.”
New findings show the device is responsive to light even when the silicon carbide is illuminated at distances far from the graphene. The performance can be increased by as much as 10 times depending on which part of the material is illuminated. The new phototransistor also is “position-sensitive,” meaning it can determine the location from which the light is coming, which is important for imaging applications and for detectors.
“This is the first time anyone has demonstrated the use of a small piece of graphene on a large wafer of silicon carbide to achieve non-local photodetection, so the light doesn’t have to hit the graphene itself,” Chen said. “Here, the light can be incident on a much larger area, almost a millimeter, which has not been done before.”
A voltage is applied between the back side of the silicon carbide and the graphene, setting up an electric field in the silicon carbide. Incoming light generates “photo carriers” in the silicon carbide.
“The semiconductor provides the media that interact with light,” Jovanovic said. “When light comes in, part of the device becomes conducting and that changes the electric field acting on graphene.”
This change in the electric field also changes the conductivity of graphene itself, which is detected. The approach is called field-effect photo detection.
The silicon carbide is “un-doped,” unlike conventional semiconductors in silicon-based transistors. Being un-doped makes the material an insulator unless it is exposed to light, which temporarily causes it to become partially conductive, changing the electric field on the graphene.
“This is a novelty of this work,” Chen said.
The research is related to work to develop new graphene-based sensors designed to detect radiation and was funded with a joint grant from the National Science Foundation and the U.S. Department of Homeland Security and another grant from the Defense Threat Reduction Agency.
“This particular paper is about a sensor to detect photons, but the principles are the same for other types of radiation,” Chen said. “We are using the sensitive graphene transistor to detect the changed electric field caused by photons, light in this case, interacting with a silicon carbide substrate.”
Light detectors can be used in devices called scintillators, which are used to detect radiation. Ionizing radiation creates brief flashes of light, which in scintillators are detected by devices called photo multiplier tubes, a roughly century-old technology.
“So there is a lot of interest in developing advanced semiconductor-based devices that can achieve the same function,” Jovanovic said.
The paper was authored by former Purdue postdoctoral research associate Biddut K. Sarker; former Penn State graduate student Edward Cazalas; Purdue graduate student Ting-Fung Chung; former Purdue graduate student Isaac Childres; Jovanovic; and Chen.
The researchers also explained their findings with a computational model. The transistors were fabricated at the Birck Nanotechnology Center in Purdue’s Discovery Park.
Future research will include work to explore applications such as scintillators, imaging technologies for astrophysics and sensors for high-energy radiation.
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This article and images was originally posted on Phys.org
That, according to the report, is in part because India already has put in place a fund dedicated to expanding baseline levels of telecommunication to all citizens. In addition, in 2009, the country introduced a national digital identification system (Aadhar) to maintain an online log of its people. And, according to Tech2, the government will invest Rs100 billion ($1.5 billion) to bring high-speed connectivity to 250,000 villages by 2018.
India’s policy score was also boosted by a rise in e-governance. Digital initiatives by the government are no longer limited to simply having websites for different ministries—now, citizens are able to make utility bill payments and seek out social benefits online, too. The number of e-transactions between the government and its citizens has grown by more than 200% in two years: from 840 million in 2013 to 2.6 billion in 2015, according to a Deloitte report.
India shared the top spot for best internet policy with Japan, Oman, Malaysia, and Chile. However, despite its robust policy score, India’s overall rank was 36. That’s because the country is crippled by infrastructural shortcomings and bureaucratic nightmares that make it nearly impossible to implement all the policies with ease—leaving many in India without the internet access the policies promise.
The report, commissioned by Facebook’s Internet.org, based its assessment of overall performance on scores in four categories:
Availability: quality and breadth of available infrastructure required for access and levels of Internet usage.
Affordability: the cost of access relative to income and the level of competition in the Internet marketplace.
Relevance: existence and extent of local-language and relevant content.
Readiness: the capacity for citizens to access the Internet, including skills, cultural acceptance, and supporting policy.
Each of these categories is broken down into a few subcategories. Below are India’s rankings across all:
Overall rank
36
Availability
46
Usage
55
Quality
49
Infrastructure
41
Electricity
43
Affordability
26
Price
51
Competitive Environment
22
Relevance
36
Local content
24
Relevant content
48
Readiness
25
Literacy
38
Trust & Safety
39
Policy
1
Coming in first for policy couldn’t do much to account for India’s poor showings across the board elsewhere.
India fares especially poorly in availability. Network availability and quality were weak points, and the fact that many in India don’t even have consistent basic electricity didn’t help. While many pockets of the country are subject to frequent power cuts, a sizable chunk of the population—240 million Indians—don’t have access to electricity at all.
A 3Q 2016 Akamai report says that India’s 4.1 megabits per second (Mbps) average Internet speed is the lowest in Asia. That might be changing: that was an improvement from the 3.5 Mbps logged at start of 2016.
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This article and images was originally posted on Quartz
Prototype high-performance electric vehicle debuts in Rio de Janeiro
Advanced full-electric battery powertrain with stunning performance and dynamic handling
Zero-emission driving fun with central driving position and two passenger seats behind
RIO DE JANEIRO, Brazil – Nissan Motor Co., Ltd. today unveiled the working prototype of its futuristic Nissan BladeGlider vehicle, combining zero-emissions with high-performance in a revolutionary sports car design.
The vehicles, developed from concept cars first shown at the Tokyo Auto Show in 2013, have arrived in Brazil to symbolize future technologies that will combine Intelligent Mobility, environmentally friendly impact and sports-car driving capabilities.
Carlos Ghosn, president and chief executive officer, Nissan Motor Co., Ltd. said: “These prototypes epitomize Nissan’s drive to expand its Intelligent Mobility strategy, where driving pleasure combines with environmental responsibility. Nissan believes that enthusiasts should look forward to a zero emission future and Nissan BladeGlider is a perfect demonstration of that. It’s the electric vehicle for car lovers.”
The debut of the Nissan Bladeglider prototypes forms part of Nissan’s on-going commitment to the development of zero-emission vehicles and new automotive technologies including autonomous drive systems and connectivity. Nissan already sells the world’s highest-volume zero-emission car, the LEAF, and is pioneering Intelligent Mobility systems that will be deployed in a range of vehicles over coming years.
With the Nissan Bladeglider, Nissan’s vision was for an agile, efficient EV that would provide new dimensions of driving fun and excitement – a car that would “glide,” thanks to the near-silent performance of its electric powertrain and aerodynamic shape.
After two years of work on design, engineering and development, Nissan BladeGlider has evolved further into an exciting, real-life study into the potential of advanced EV performance. Nissan BladeGlider epitomizes Intelligent Mobility, a philosophy to make its cars more exciting by redefining how they are driven, powered and integrated into society.
The Galaxy Note 7 is this year’s best new phone, edging out Samsung’s own S7 Edge, and easily the most talked-about new device of the summer. But with great fame comes great scrutiny, and this week has seen the Note 7 subjected to allegations of having “embarrassing real-world performance.” Well, I’ve been using the Note 7, out here in real-world Europe, as my main phone for 10 glorious days now, and I’m here to tell you that the benchmarks lie. This phone doesn’t have a performance problem.
On Monday, the performance obsessives at XDA — I use this term with kindness, for I am quite fanatical about speed myself — posted benchmarks and measurementsshowing the Galaxy Note 7 to be slower than the HTC 10 and OnePlus 3. Around the same time, someone else posted a speed comparison between the Note 7 and iPhone 6S, which showed the iPhone being faster in the completely realistic scenario of launching and immediately closing every app on your phone. Naturally, the internet reacted in its predictable, over-caffeinated fashion, casting doubt and shade at Samsung’s new flagship phone.
Apple today released iOS 9.3.3 to the public, marking the third minor update to iOS 9 since iOS 9.3 launched in March of 2016. In testing since May 23, there were five betas of iOS 9.3.3 released to developers and public beta testers ahead of the public release of the software.
Today’s iOS 9.3.3 release is available as an over-the-air update for all iOS 9 users and it can also be downloaded through iTunes.
As a small 9.x.x update, iOS 9.3.3 focuses mainly on under-the-hood performance improvements and bug fixes rather than outward-facing changes.
iOS 10 brings a host of new features, including a revamped Lock screen experience, an overhauled Messages app with new functionality and its own App Store, a new Photos app with object and facial recognition, a redesigned Music app, a centralized HomeKit app, and a Siri SDK for developers.
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