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化学与技术创新国际新闻提要(5月4日)

已有 3138 次阅读 2015-5-5 10:51 |个人分类:新科技|系统分类:博客资讯| 技术新闻, 化学新闻

化学与技术创新国际新闻提要(5月4日)

诸平

马里兰大学的工程师创造了一种仅仅只有一种材料构成的电池——

For batteries, one material does it all

科学家确定了白鼻综合症中的组织降解酶——

Scientists identify tissue-degrading enzyme in white-nose syndrome

血液中肿瘤细胞自动计数新方法——

Automated counting of tumor cells in blood

鳄梨为什么这样棒?——

Video: Why are avocados so awesome?

量子点的应用研究——

Many uses in researching quantum dots

2016通用汽车公司的雪佛兰混合动力小轿车大幅降价——

GM cuts 2016 Volt plug-in hybrid car price by almost $1,200

年仅47岁的戴维·戈登堡(David Goldberg)突然去世——

David Goldberg, tech exec married to 'Lean In' author, dies太阳能飞机5昼夜穿越太平洋——Pilot to fly solar plane across Pacific for 5 days, 5 nights更新信息请浏览以下内容:Chemistry news
For batteries, one material does it all

Engineers at the University of Maryland have created a battery that is made entirely out of one material, which can both move electricity and store it.

Study describes revolutionary method of making RNAs

A biochemist from The University of Texas Health Science Center at San Antonio is a co-author on a paper in Nature that describes a new, more efficient method of making ribonucleic acids (RNAs).

Scientists identify tissue-degrading enzyme in white-nose syndrome

Scientists at UC San Francisco and Brown University have figured out the likely way that white-nose syn-drome breaks down tissue in bats, opening the door to potential treatments for a disease that has killed more than six million bats since 2006 and poses a threat to the agricultural industry.

Automated counting of tumor cells in blood

Biological and medical scientists have been using flow cytometry to count cancer cells for the past 40 years. But the large instruments are expensive and can only be operated by trained personnel. By contrast the PoCyton cytometer developed by Fraunhofer researchers is cheap to produce, no bigger than a shoebox, and automated.

Wood-polymer composite furniture with low flammability

Wood is a popular material in interior design, but its water absorbency limits its use in bathrooms, where natural wood easily becomes discolored or moldy. Fraunhofer scientists and partners have developed a wood-polymer composite material for furniture that is resistant to humidity and has low flammability.

Researchers unravel mystery in search for connective tissue disease causes

University of Wyoming molecular biologist David Fay doesn't much look like famous sleuths such as television's Columbo—no trenchcoat, at least—nor Fox Mulder of "X Files" fame; there is no doubting-what's-out-there Scully at his side.

Video: Why are avocados so awesome?

Whether they're in a big bowl of guacamole for your Cinco de Mayo festivities or scooped on top of your salad, avocados enjoy a special place in our hearts and stomachs. On top of being tasty, avocados are a noted superfood with a number of fantastic health benefits.

Nanotechnology news
Multicolor meta-hologram produces light across entire visible spectrum

(Phys.org)—There are many different ways to generate a hologram, each with its own advantages and disadvantages. Trying to maximize the advantages, researchers in a new study have designed a hologram made of a metamaterial consisting of aluminum nanorods that can produce light across the entire visible spectrum, and do so in a way that yields brighter images than other methods.

Theorists show environments can alter 2-D materials' basic properties

What if peanut brittle, under certain conditions, behaved like taffy? Something like that happens to a two-dimensional dichalcogenide analyzed by scientists at Rice University.

Defects in atomically thin semiconductor emit single photons

Researchers at the University of Rochester have shown that defects on an atomically thin semiconductor can produce light-emitting quantum dots. The quantum dots serve as a source of single photons and could be useful for the integration of quantum photonics with solid-state electronics - a combination known as integrated photonics.

Many uses in researching quantum dots

It's easier to dissolve a sugar cube in a glass of water by crushing the cube first, because the numerous tiny particles cover more surface area in the water than the cube itself. In a way, the same principle applies to the potential value of materials composed of nanoparticles.

Nanoparticles in consumer products can significantly alter normal gut microbiome

Exposure of a model human colon to metal oxide nanoparticles, at levels that could be present in foods, consumer goods, or treated drinking water, led to multiple, measurable differences in the normal microbial community that inhabits the human gut. The changes observed in microbial metabolism and the gut microenvironment with exposure to nanoparticles could have implications for overall human health, as discussed in an article published in Environmental Engineering Science.

Technology news
FAA's Airworthiness Directive issued to avoid power loss

A fix for a software problem that could possibly result in power loss in Boeing 787s has been ordered. Federal Aviation Administration officials adopted a new airworthiness directive (AD), effective as of Friday, for Boeing 787 airliners to follow until the flaw is fixed. "We are issuing this AD to prevent loss of all AC electrical power, which could result in loss of control of the airplane."

Pilot to fly solar plane across Pacific for 5 days, 5 nights

A pilot said Sunday that he is anxious but excited about flying a solar plane solo from China to Hawaii on the longest leg of the first attempt to fly around the world without a drop of fuel.

Mumblehard targets servers running Linux and BSD

Security watchers are talking about a family of malware that infects Linux and BSD servers. Marc-Etienne M. Léveillé, ESET malware researcher, has provided details about Linux/Mumblehard, which targets servers running Linux and BSD.

Ten-engine electric plane prototype takes off

A team at NASA's Langley Research Center is developing a concept of a battery-powered plane that has 10 engines and can take off like a helicopter and fly efficiently like an aircraft. The prototype, called Greased Lightning or GL-10, is currently in the design and testing phase. The initial thought was to develop a 20-foot wingspan (6.1 meters) aircraft powered by hybrid diesel/electric engines, but the team started with smaller versions for testing, built by rapid prototyping.

Algorithm combines videos from unstructured camera arrays into panoramas

Even non-professionals may someday be able to create high-quality video panoramas using multiple cameras with the help of an algorithm developed by a team of Disney researchers.

Combining computer vision and brain computer interface for faster mine detection

Computer scientists at the University of California, San Diego, have combined sophisticated computer vision algorithms and a brain-computer interface to find mines in sonar images of the ocean floor. The study shows that the new method speeds detection up considerably, when compared to existing methods—mainly visual inspection by a mine detection expert.

Google is starting small, thinking big with 'Project Fi'

Google wants the wireless services that connect mobile devices to digital content to be cheaper and more reliable.

Facebook opens up Internet.org after neutrality flap

Facebook said Monday it was opening up Internet.org, which provides connectivity to people in developing nations, to outside applications following a controversy over its limited set of online services.

Mozilla says HTTPS is the way forward for the Web

The web developer community can hear a rallying cry loud and clear :Let's hear it for web security. Mozilla, the group behind the browser Firefox, is turning up the volume by saying enough's enough with non-secure HTTP. The Foundation has taken a move in order to protect users from snoopers.

Engineering students create real-time 3-D radar system

Spencer Kent stands nervously in front of Team D.R.A.D.I.S.' booth at Rice University's annual Engineering Design Showcase. Judging begins in about 10 minutes, and his teammate Galen Schmidt is frantically typing computer code into a laptop beside the team's custom-made radar system.

Americans stream away in shifting TV landscape

Streaming television is now mainstream, although it has not caused many people to "cut the cord" for traditional pay TV. Not yet, anyway.

Google embeds engineers as professors

Howard University freshman Alanna Walton knew something was different about the professor teaching her introduction to computer science course.

New gold standard established for open and reproducible research

A group of Cambridge computer scientists have set a new gold standard for openness and reproducibility in research by sharing the more than 200GB of data and 20,000 lines of code behind their latest results - an unprecedented degree of openness in a peer-reviewed publication. The researchers hope that this new gold standard will be adopted by other fields, increasing the reliability of research results, especially for work which is publicly funded.

GM cuts 2016 Volt plug-in hybrid car price by almost $1,200

General Motors is knocking nearly $1,200 off the price of the 2016 Chevrolet Volt plug-in hybrid car.

Fans cheer for 'Call of Duty' in Paris video game world cup

Players greeted like rock stars, cheering fans and a spectacular set; the Zenith concert hall in Paris was transformed into a giant play room this weekend for a global tournament devoted to the blockbuster "Call of Duty" video game.

Comcast now has more Internet than cable customers

Just before its $45 billion deal with Time Warner Cable collapsed over regulators' fears about a giant cable company's control over the Web, Comcast was racking up more Internet customers.

Economical and effective security design

Operators of infrastructures such as power grids and airports are expected to ensure a high level of security – but their financial means are limited. Fraunhofer researchers have developed an analysis tool for evaluating the effectiveness and economic viability of different security measures as part of an EU-funded project.

Masonry structures common in Nepal prone to 'sudden and brittle failure,' expert says

After an earthquake hit California in 1933, unreinforced masonry structures were banned.

You may be travelling less – and that's a good thing

In 1900, humans travelled a total of just 0.2 trillion km by vehicle, nearly all by train.

The winners and losers in Tesla's battery plan for the home

Tesla's plans to use its new battery storage system to power homes will provide households with more opportunities to reduce bills. But it will also cause headaches for the electricity distribution companies.

Periscope live streaming could turn the tables on the rise of video-on-demand

That live streaming app Periscope, which allows a real-time video broadcast from a phone to the internet, has been acquired by Twitter and represents the next logical step in the process that has seen social media integrated into every facet of daily life.

Professor develops wall displaying info gleaned from social media, networks

Assistant Professor of Architecture Alex Webb is not your average T-square, model-building architect. He uses the design skills and tech savvy he gained through an architectural education in new and innovative ways.

Instructional technology students explore how video games can trigger emotional responses

Every video game's narrative has a start and finish: Kickoff and the last whistle for a football game; Pearl Harbor and the bombing of Hiroshima in a World War II game; or just eating all the dots in Pac-Man. Two Ohio University graduate students, however, have broken the mold and created a location-based videogame that starts at the top of Baker University Center, and if all goes as planned, ends in tears.

Cisco CEO Chambers to step down, Robbins named successor

Veteran tech executive John Chambers plans to step down after more than 20 years as CEO of Cisco Systems Inc., a major supplier of computer networking gear that makes the Internet work.

Use of cellphone trackers in criminal probes under review in US

The US Justice Department said Monday it is re-examining its controversial use of secret cellphone tracking devices to establish the location of suspects in criminal investigations, a spokesman said.

Boxing match pops up on phones as TV habits change

It should have been a proud moment for TV: drawing in millions of viewers willing to pay big money for a much-hyped sports event, while at the same time showing the clout traditional media still holds.

David Goldberg, tech exec married to 'Lean In' author, dies

David Goldberg, a popular Silicon Valley executive and husband of Facebook second-in-command and "Lean In" author Sheryl Sandberg, has died suddenly at age 47, his company and family members said Saturday.

Cable, pay-per-view problems leave viewers fighting mad

For some boxing fans, the big fight Saturday night turned out to be between them and their cable companies.

Space technology could reduce cost of renewable energy

Space-based radar technology could be harnessed by the renewable energy sector to drive down costs, according to academics at the University of Strathclyde.

New research to realise the sensor 'pipe dream'

Three new research projects funded by Australia's energy pipeline industry have been initiated at Deakin University. The projects aim to develop a world-first pipeline health monitoring system that will be based on a high tech sensor developed by Deakin researchers.

Fujitsu develops world's first technology that visualizes complexity of business logic in a program's code

Fujitsu Laboratories today announced the development of the world's first technology for visualizing the degree of complexity of the business logic in complex, large-scale business applications. In the past, when looking for important elements based on metrics like program size or the number of conditional branches, it has been difficult to distinguish the business logic that executes business processes from the control logic that executes functions such as sharing data among programs and format checking.

Sally Beauty probes reports of unusual payment card activity

Sally Beauty said Monday that it is investigating reports of unusual activity on payment cards used at some of its U.S. stores.




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