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Grass replaces plastic in take-away food packaging

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Grass fibres can replace plastic as a 100% biodegradable and disposable material for packaging for take-away food. This is the goal of the new innovative project SinProPack, which aims to develop a sustainable alternative to the disposable plastics currently used for packaging.
The project is bringing together industry, consumers and knowledge institutions to develop, demonstrate, test and evaluate fibre-based packaging for to-go food via proof-of-concept, pilot-scale trials and industrial upscaling.
Disposable packaging made of grass brings a lot of environmental benefits. The packaging will be 100% biodegradable, so if someone accidentally drops their packaging in nature, it will decompose naturally, says Anne Christine Steenkjær Hastrup, centre director at Danish Technological Institute, who is coordinating the project. ....

Anne Christine Steenkj , Morten Ambye Jensen , Danish Technological Institute , Chemical Engineering At Aarhus University , Danish Agricultural Authority , Aarhus University , Assistant Professor Morten Ambye Jensen , Chemical Engineering , Danish Agricultural , Ood Food Science , Plant Sciences , Pollution Remediation , Business Economics , Technology Engineering Computer Science , Biomedical Environmental Chemical Engineering , Research Development , டேனிஷ் தொழில்நுட்ப நிறுவனம் , இரசாயன பொறியியல் இல் ஆர்ஹஸ் பல்கலைக்கழகம் , ஆர்ஹஸ் பல்கலைக்கழகம் , இரசாயன பொறியியல் ,

Holograms increase solar energy yield

Researchers at the University of Arizona recently developed an innovative technique to capture the unused solar energy that illuminates a solar panel. As reported in the Journal of Photonics for Energy (JPE), they created special holograms that can be easily inserted into the solar panel package. This method can increase the amount of solar energy converted by the solar panel over the course of a year by about five percent. ....

United States , University Of Arizona , Raymondk Kostuk , Benjamin Chrysler , Jianbo Zhao , Engineering Research Center , Sean Shaheen At University Of Colorado Boulder , Us National Science Foundation , Us Department Of Energy , Research Center , Science Foundation , Chief Sean Shaheen , Colorado Boulder , Earth Science , Energy Sources , Technology Engineering Computer Science , Electrical Engineering Electronics , Research Development , ஒன்றுபட்டது மாநிலங்களில் , பல்கலைக்கழகம் ஆஃப் அரிசோனா , பொறியியல் ஆராய்ச்சி மையம் , எங்களுக்கு தேசிய அறிவியல் அடித்தளம் , எங்களுக்கு துறை ஆஃப் ஆற்றல் , ஆராய்ச்சி மையம் , அறிவியல் அடித்தளம் , கொலராடோ கற்பாறை ,

Two new attacks break PDF certification

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IMAGE: IT experts at RUB have found several security issues with digital signatures for PDF documents over the past years.
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Credit: RUB, Kramer
A security issue in the certification signatures of PDF documents has been discovered by researchers at Ruhr-Universität Bochum. This special form of signed PDF files can be used, for instance, to conclude contracts. Unlike a normal PDF signature, the certification signature permits certain changes to be made in the document after it has actually been signed. This is necessary to allow the second contractual party to also sign the document. The team from the Horst Görtz Institute for IT Security in Bochum showed that the second contractual party can also change the contract text unnoticed when they add their digital signature, without this invalidating the certification. The researchers additionally discovered a weakness in Adobe products that enables attackers to implant malicious code into th ....

Simon Rohlmann , Vladislav Mladenov , Christian Mainka , Data Security , Sneaky Signature Attack , Evil Annotation Attack , Technology Engineering Computer Science , Computer Science , System Security Hackers , தகவல்கள் பாதுகாப்பு , தொழில்நுட்பம் பொறியியல் கணினி அறிவியல் ,

Implantable piezoelectric polymer improves controlled release of drugs

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IMAGE: An implantable piezoelectric nanofiber polymer membrane delivers precise amounts of drugs under mechanical force.
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Credit: Jin Nam/UCR
A membrane made from threads of a polymer commonly used in vascular sutures can be loaded with therapeutic drugs and implanted in the body, where mechanical forces activate the polymer s electric potential and slowly release the drugs.
The novel system, developed by a group led by bioengineers at UC Riverside and published in
ACS Applied Bio Materials, overcomes the biggest limitations of conventional drug administration and some controlled release methods, and could improve treatment of cancer and other chronic diseases. ....

Jin Nam , Nosangv Myung , Youyi Tai , Tanvi Jariwala , Rosemary Bourns College Of Engineering , Abio Materials , Rosemary Bourns College , Gerardo Ico , Honghyun Park , Biomechanics Biophysics , Pharmaceutical Sciences , Medicine Health , Pharmaceutical Science , Technology Engineering Computer Science , Biomedical Environmental Chemical Engineering , Nanotechnology Micromachines , ஜின் நாம் , ரோஸ்மேரி பெர்ன்ஸ் கல்லூரி ஆஃப் பொறியியல் , உயிர் பொருட்கள் , ரோஸ்மேரி பெர்ன்ஸ் கல்லூரி , உயிரி தொழில்நுட்பவியல் ,

Generating electricity from heat using the spin Seebeck device

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IMAGE: (Left) Structure of conventional thermoelectric module based on charge Seebeck effect
(Right) Structure of new thermoelectric module based on spin Seebeck effect
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Credit: POSTECH
Thermoelectric (TE) conversion offers a carbon-free power generation from geothermal, waste, body or solar heat, and shows promise to be the next-generation energy conversion technology. At the core of such TE conversion, there lies an all solid-state thermoelectric device which enables energy conversion without the emission of noise, vibrations, or pollutants. To this, a POSTECH research team proposed a way to design the next-generation thermoelectric device that exhibits remarkably simple manufacturing process and structure compared to the conventional ones, while displaying improved energy conversion efficiency using the spin Seebeck effect (SSE).1 ....

South Korea , Young Kim , Hyungyu Jin , Si Young Choi , National Research Facilities , Department Of Mechanical Engineering , Department Of Materials Science , Young Researcher Program , Strategic International Collaborative Research Program , Professor Hyungyu Jin , Min Young Kim , Mechanical Engineering , Professor Si Young Choi , Materials Science , Environmental Science , Global Frontier Hybrid Interface Materials , National Research Foundation , Equipment Center Program , Korea Basic Science , Chemistry Physics Materials Sciences , Energy Fuel Non Petroleum , Energy Sources , Technology Engineering Computer Science , Electrical Engineering Electronics , Research Development , தெற்கு கொரியா ,