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Engineers look inside nanoparticles to explore how their shape improves energy storage 

Engineers look inside nanoparticles to explore how their shape improves energy storage  | Science | Scoop.it
Many recent big technological advances in computing, communications, energy and biology have relied on very small materials, nanoparticles, with dimensions less than 1/1,000th the thickness of a sheet of paper. However, it can be hard to determine the best nanomaterials for these applications because observing nanoparticles in action requires high spatial resolution in “messy,” dynamic …
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استكشاف جزيئات النانو من الداخل لمعرفة الكيفية التي يساعد بها شكلها على تخزين الطاقة بشكل أفضل
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Chemically storing solar power

Chemically storing solar power | Science | Scoop.it
Nature shows us how it is done: Plants can absorb sunlight and store its energy chemically. Imitating this on large industrial scale, however, is difficult. Photovoltaics convert sunlight to electricity, but at high temperatures, the efficiency of solar cells decreases. Electrical energy can be used to produce hydrogen, which can then be stored — but …
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تخزين الطاقة الشمسية كيميائيا
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New record for fastest data transmission

New record for fastest data transmission | Science | Scoop.it
A new record for the fastest ever data rate for digital information has been set by UCL researchers in the Optical Networks Group. They achieved a rate of 1.125 Tb/s as part of research on the capacity limits of optical transmission systems, designed to address the growing demand for fast data rates. Lead researcher, Dr …
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فريق بحث يحقق رقما قياسيا جديدا في سرعة نقل البيانات

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Graphene is strong, but is it tough?

Graphene is strong, but is it tough? | Science | Scoop.it
Graphene, a material consisting of a single layer of carbon atoms, has been touted as the strongest material known to exist, 200 times stronger than steel, lighter than paper, and with extraordinary mechanical and electrical properties. But can it live up to its promise? Scientists at the U.S. Department of Energy’s Lawrence Berkeley National Laboratory …
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الجرافين قوي ولكن مقاومته للكسر منخفضة

Open access article "Toughness and strength of nanocrystalline graphene"

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New battery shuts down at high temperatures and restarts when it cools

New battery shuts down at high temperatures and restarts when it cools | Science | Scoop.it
Stanford researchers have developed the first lithium-ion battery that shuts down before overheating, then restarts immediately when the temperature cools. The new technology could prevent the kind of fires that have prompted recalls and bans on a wide range of battery-powered devices, from recliners and computers to navigation systems and hoverboards. “People have tried different …
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ابتكار بطاريات تتوقف عن العمل عند ارتفاع درجة الحرارة ثم تعود عند انخفاضها

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Material can harvest sun by day, release heat on demand hours or days

Material can harvest sun by day, release heat on demand hours or days | Science | Scoop.it
Imagine if your clothing could, on demand, release just enough heat to keep you warm and cozy, allowing you to dial back on your thermostat settings and stay comfortable in a cooler room. Or, picture a car windshield that stores the sun’s energy and then releases it as a burst of heat to melt away …
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مادة جديدة تقوم بتخزين الطاقة الشمسية أثناء النهار ومن ثم اطلاق الحرارة عند الحاجة إليها

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Graphene microphone outperforms traditional nickel and offers ultrasonic reach

Graphene microphone outperforms traditional nickel and offers ultrasonic reach | Science | Scoop.it
Scientists have developed a graphene based microphone nearly 32 times more sensitive than microphones of standard nickel-based construction. The researchers, based at the University of Belgrade, Serbia, created a vibrating membrane – the part of a condenser microphone which converts the sound to a current – from graphene, and were able to show up to …
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استخدام الجرافين في صناعة ميكروفونات ذات كفاءة عالية 

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الأنسجة النانوية.. استخدامات بلا حدود

الأنسجة النانوية.. استخدامات بلا حدود | Science | Scoop.it
تعد الأنسجة النانوية من أحدث الابتكارات في تقنية النانو التي تملك استخدامات واسعة لما تتميز به من خصائص فريدة، مثل إمكانية تعديل لونها ومقاومتها للماء والبكتيريا إلى جانب مزايا أخرى.
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Daily aspirin could block growth of breast, other cancers - ScienceBlog.com

Daily aspirin could block growth of breast, other cancers - ScienceBlog.com | Science | Scoop.it
“Take two aspirin and call me in the morning” has been the punchline for countless jokes. Could it also be good advice for cancer patients? A lab study to appear in the July 2015 issue of Laboratory Investigation found that a daily dose of aspirin was effective at blocking breast tumor growth. Previous studies have …
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تعاطي الاسبيرين يوميا يعمل على إيقاف نمو سرطان الثدي وأنواع أخرى من السرطانات

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Producing biodegradable plastic just got cheaper and greener - ScienceBlog.com

Producing biodegradable plastic just got cheaper and greener - ScienceBlog.com | Science | Scoop.it
Biodegradable drinking cups or vegetable wrapping foil: the bioplastic known as polylactic acid (PLA) is already a part of our everyday lives. And yet, PLA is not yet considered a full alternative to traditional petroleum-based plastics, as it is costly to produce. Researchers from the KU Leuven Centre for Surface Chemistry and Catalysis now present …
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تصنيع البلاستيك القابل للتحلل بطرق أبسط وبدون مخلفات

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Tomatoes get boost in growth, antioxidants from nano-sized nutrients - ScienceBlog.com

Tomatoes get boost in growth, antioxidants from nano-sized nutrients - ScienceBlog.com | Science | Scoop.it
With the world population expected to reach 9 billion by 2050, engineers and scientists are looking for ways to meet the increasing demand for food without also increasing the strain on natural resources, such as water and energy — an initiative known as the food-water-energy nexus. Ramesh Raliya, PhD, a postdoctoral researcher, and Pratim Biswas, …
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زيادة العناصر الغذائية في الطماطم باستخدام مواد كيماوية في حجم النانو

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Smarter Window Materials Can Control Light and Energy - ScienceBlog.com

Smarter Window Materials Can Control Light and Energy - ScienceBlog.com | Science | Scoop.it
Researchers in the Cockrell School of Engineering at The University of Texas at Austin are one step closer to delivering smart windows with a new level of energy efficiency, engineering materials that allow windows to reveal light without transferring heat and, conversely, to block light while allowing heat transmission, as described in two new research …
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نوافذ ذكية تسمح بنفاذ الضوء دون حرارة وبالعكس

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Safe motorcycle helmets - made of carrot fibers? - ScienceBlog.com

Safe motorcycle helmets - made of carrot fibers? - ScienceBlog.com | Science | Scoop.it
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ألياف الجزر لصناعة الخوذات

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ReMMe2016 - iMMe16

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Regional Conference on Marine and Mechanical Engineering (ReMME'16)
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Implantable kidney replacement is part nano-tech, part living cells, powered by heart 

Implantable kidney replacement is part nano-tech, part living cells, powered by heart  | Science | Scoop.it
Vanderbilt University Medical Center nephrologist and Associate Professor of Medicine Dr. William H. Fissell IV, is making major progress on a first-of-its kind device to free kidney patients from dialysis. He is building an implantable artificial kidney with microchip filters and living kidney cells that will be powered by a patient’s own heart. “We are …
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كلية صناعية تزرع في المريض وتستمد الطاقة من قلبه
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Researchers seek efficient means of splitting water

Researchers seek efficient means of splitting water | Science | Scoop.it
Photovoltaics promise to help meet our energy needs by turning sunlight into electricity. We can’t run everything that way, but with a little tweaking, photovoltaic materials can use solar energy to split water into hydrogen and oxygen. Cornell researchers are studying how this works, hoping to make the process more efficient and less expensive. “There …
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تجزئة الماء للحصول على الطاقة

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Ourboox - Create picture books online

Ourboox - Create picture books online | Science | Scoop.it
Ourboox is a platform and community for social publishing. Reach out to the community, publish your book online and share it with the Ourboox community and the world.

Via Nik Peachey
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اكتب وانشر كتابك وشاركه مع الغير

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Viljenka Savli (http://www2.arnes.si/~sopvsavl/)'s curator insight, October 21, 2015 7:01 AM

Yes, easy to use, simple and nice products, nothing else to add. 

 

Ressources pour les cours d'anglais's curator insight, October 22, 2015 3:04 AM

Un service pour créer des livres avec de l'audio, de la vidéo, des images et c'est gratuit ! À tester !

Character Minutes's curator insight, November 9, 2015 6:59 PM

Looks like a great project for classes or a way to share their research.

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Researchers' metallic glue may stick it to soldering and welding

Researchers' metallic glue may stick it to soldering and welding | Science | Scoop.it
Per­haps no startup was launched for a more intriguing reason than that of Northeastern’s Hanchen Huang. From the com­pany website: “MesoGlue was founded by Huang and two of his PhD stu­dents: They had a dream of a better way of sticking things together.” Those “things” are every­thing from a computer’s cen­tral pro­cessing unit and a …
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ابتكار غراء معدني ذو موصلية حرارية وكهربية ويقاوم درجات الحرارة العالية

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Solar energy from discarded car batteries

Solar energy from discarded car batteries | Science | Scoop.it
MIT researchers have developed a simple procedure for making a promising type of solar cell using lead recovered from discarded lead-acid car batteries — a practice that could benefit both the environment and human health. As new lead-free car batteries come into use, old batteries would be sent to the solar industry rather than to …
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استعمال نفايات بطاريات السيارات - المحتوية على الرصاص - في تصنيع الخلايا الشمسية 

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Hardened steels for more efficient engines

Hardened steels for more efficient engines | Science | Scoop.it
Combustion engines still have much potential to save energy and reduce emissions. The present trend is to use smaller engines of the same or even increased power. Engines with a reduced cylinder capacity consume less fuel due to their smaller weight, smaller friction, and smaller amount of exhaust heat. This so-called downsizing, however, is associated …
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معالجة الفولاذ لاستخدامه في تصنيع محركات ذات كفاءة عالية

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World's thinnest lightbulb - graphene gets bright! - ScienceBlog.com

World's thinnest lightbulb - graphene gets bright! - ScienceBlog.com | Science | Scoop.it
Led by Young Duck Kim, a postdoctoral research scientist in James Hone’s group at Columbia Engineering, a team of scientists from Columbia, Seoul National University (SNU), and Korea Research Institute of Standards and Science (KRISS) reported today that they have demonstrated — for the first time — an on-chip visible light source using graphene, an …
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الحصول على أدق مصباح كهربائي باستخدام الجرافين

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Researchers develop a new means of killing harmful bacteria - ScienceBlog.com

Researchers develop a new means of killing harmful bacteria - ScienceBlog.com | Science | Scoop.it
The global rise in antibiotic resistance is a growing threat to public health, damaging our ability to fight deadly infections such as tuberculosis. What’s more, efforts to develop new antibiotics are not keeping pace with this growth in microbial resistance, resulting in a pressing need for new approaches to tackle bacterial infection. In a paper published …
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طرق جديدة للقضاء على البكتيريا الضارة

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MIT's shocking process for desalination of water - ScienceBlog.com

MIT's shocking process for desalination of water - ScienceBlog.com | Science | Scoop.it
As the availability of clean, potable water becomes an increasingly urgent issue in many parts of the world, researchers are searching for new ways to treat salty, brackish or contaminated water to make it usable. Now a team at MIT has come up with an innovative approach that, unlike most traditional desalination systems, does not …
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طريقة جديدة لتحلية المياه

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Nanowires give 'solar fuel cell' efficiency a tenfold boost - ScienceBlog.com

Nanowires give 'solar fuel cell' efficiency a tenfold boost - ScienceBlog.com | Science | Scoop.it
A solar cell that produces fuel rather than electricity. Researchers at Eindhoven University of Technology (TU/e) and FOM Foundation today present a very promising prototype of this in the journal Nature Communications. The material gallium phosphide enables their solar cell to produce the clean fuel hydrogen gas from liquid water. Processing the gallium phosphide in …
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استخدام الأسلاك النانوية في انتاج وقود نظيف 

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How nanoparticles can clean up environmental pollutants - ScienceBlog.com

How nanoparticles can clean up environmental pollutants - ScienceBlog.com | Science | Scoop.it
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استحدام جزيئات النانو مع الأشعة فوق البنفسجية في تنقية التربة والمياه من الملوثات

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