Other Tech 

Packable device keeps mosquitoes away in the boonies

Beyond heated insoles, Thermacell makes a variety of battery-powered gadgets for outdoor lovers, among them a line of mosquito repellers. The company is preparing to launch a lighter, more compact repeller designed to go deeper into the wilderness. The packable Backpacker Repeller drops Thermacell’s mosquito-fighting technology into your pack so you can easily carry it to even the most faraway backcountry destinations. We’ve used one of Thermacell’s larger repeller lanterns and can say that it’s an absolute pleasure. Thermacell claims 96 percent effectiveness against mosquitoes, black flies and other pesky flying…

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Other Tech 

The Death of Cubicles: Engineers Create the First Mobile Workstations

Got a smelly weirdo sitting next to you at work? Need a place to stick an intern? Well it looks like cubicle life as we know it is about to change. If some cutting-edge companies have their way, we may all soon be working from mobile workstations. What those spaces will look like all depends on the designer. Here’s a look at the most notable designs: • Michiel van der Kley’s Globus folds up into a globe and unfolds into a desk and a chair. • The ScooterDesk by Utilia may look uncomfortable, but its barstool design with…

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Other Tech 

New Mobile App Lets Scientists Nab Data Anywhere on Earth

To our graduate student readers: As if constant emails from your boss weren’t enough,  soon you’ll have no excuse to avoid the “got any data?” question—even when you’re out in the field. A new mobile app now lets researchers collect and analyze data from anywhere in the world, using their cell phones. It’s not all bad: The software could help you unload some of your work by allowing citizen scientists to snap pictures from their own backyards, and contribute them to research projects. The software, called EpiCollect, is especially useful for…

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Other Tech 

Harmless “T-Ray” Vision Sees Through Boxes, Walls and Skin

Call it the “X-ray vision” app: In several years, smartphones could come equipped with a microchip that lets users peer through boxes, walls and other objects. Rather than dangerous X-rays, however, the chip beams out waves in the harmless terahertz frequency, a little-used portion of the electromagnetic spectrum between microwaves and far-infrared. Terahertz generators historically have been bulky, expensive affairs. But now Caltech researchers have succeeded in crafting terahertz-emitting silicon chips that are smaller than a dime using a standard, inexpensive electronics manufacturing technique. The researchers harnessed an array of…

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Machine Learning for Text Classification

Machine Learning for Text Classification Machine learning can used to classified different category of texts, by using various classifiers. The common machine learning classifiers are support vector machine, Naive Bayes and even ensemble models, such as stochastic gradient descent. Besides, deep learning neural network is also a choice for the text classification. Those classifiers and neural network enable us to category the text and even to find the author for the specific text. The general idea is that we input the text of specific category or author, and then we…

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Other Tech 

NEW SOLID OXIDE FUEL CELL TECHNOLOGY

Scientists are tirelessly working on sources of alternative energy so that we can have a better substitute for fossil fuels in near future. We know that sunlight, wind and geothermal sources of energy are better for everyone. But they also need efficient fuel cells for better utilization of power. Solid oxide fuel cells (SOFCs) seem promising enough for both stationary and mobile applications. Stationary use can cover residential applications to power plants. Mobile applications contain energy for ships at sea and in space, as well as for automobiles. Another advantage of the…

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3 Implications of Memory-Boosting Devices

In fall, DARPA announced a major success in its Restoring Active Memory (RAM) program. Researchers implanted targeted electrical arrays in the brains of a few dozen volunteers — specifically in brain areas involved in memory. The researchers found a way to read out neural “key codes” associated with specific memories, and then fed those codes back into the volunteers’ brains as they tried to recall lists of items or directions to places. While the results are still preliminary, DARPA claims that the RAM technique has already achieved “promising results” in improving memory…

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Miniature fuel cell to keep drones aloft for over an hour and phones charged for a week

Drones are being utilized in everything from parcel delivery to search and rescue, but their limited flight times are restricting their ability to travel great distances or stay for extended periods of time in the field. Simply adding more batteries, however, affects flight characteristics and reduces the load the drone can carry. To help solve this problem, researchers at the Pohang University of Science and Technology (Postech) have created a miniature fuel cell they claim not only provides enough energy to keep a drone in the sky for over an hour, but may…

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How Trucks Can Make Delivery Drones a Reality

Delivery drones may still seem a ways off because of new U.S. commercial drone regulations requiring drones to stay within sight of their human operators on the ground. But such rules pose no problem for a U.S. startup that developed a drone capable of launching from delivery trucks and dropping off packages within the driver’s line of sight. The HorseFly drone developed by Workhorse Group, an electric vehicle company in Cincinnati, Ohio, is an octocopter designed to ride aboard a delivery truck. Once it gets a delivery mission, the drone can take off through the truck’s roof with a…

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Defeat Hardships With Hard work

Defeat Hardships With Hard work I believe in hard work even there are various hardships in my life wants to stop my step of moving forward. I was not born with the world’s highest IQ, and I was not born with special talents. I am just an ordinary person who was born in an average middle-class Chinese family. That cannot be any more normal. The only way I can stand out from the normal is by hard work. I always make every piece of my work the best performance I…

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