Atomic Energy Commission of Syria

 
   

  Chemistry

 

Wed 24 Dec 2014. Detecting gases wirelessly and cheaply. chemists have devised a new way to wirelessly detect hazardous gases and environmental pollutants, using a simple sensor that can be read by a smartphone. These inexpensive sensors could be widely deployed, making it easier to monitor public spaces or detect food spoilage in warehouses. Using this system, the researchers have demonstrated that they can detect gaseous ammonia, hydrogen peroxide, and cyclohexanone, among other gases. The new sensors are made from modified near-field communication (NFC) tags. These tags, which receive the little power they need from the device reading them, function as wirelessly addressable barcodes and are mainly used for tracking products such as cars or pharmaceuticals as they move through a supply chain, such as in a manufacturing plant or warehouse. NFC tags can be read by any smartphone that has NFC capability. The phones can send out short pulses of magnetic fields at radio frequency (13.56 MHz), inducing an electric current in the circuit on the tag, which relays information to the phone. More

 

  Nuclear

 

Wed 3 Dec 2014, New discovery sheds light on nuclear reactor fuel behavior during a severe event. UO_2 is the primary fuel component in the majority of existing nuclear reactors, but little is known about the molten state because of its extremely high melting point. Until now, the extremely high temperature and chemical reactivity of the melt have hindered studies of molten UO_2. This lack of fundamental information has made it difficult to evaluate issues associated with the interaction of molten UO_2 with a reactor's zirconium cladding and steel containment vessel. A new discovery about the atomic structure of uranium dioxide will help scientists select the best computational model to simulate severe nuclear reactor accidents. More

 

  Agriculture

 

Tue 18 Nov 2014. ‘Big Data’ Takes Root in the World of Plant Research. Irish Botanists have launched a database with information that documents significant ‘life events’ for nearly 600 plant species across the globe. They clubbed together with like-minded individuals working across five different continents to compile the huge database of plant life histories, for which data have been gathered over a near 50-year span. At a time in which climate change and increasing human populations are rapidly re-shaping plant distributions, the researchers hope their COMPADRE Plant/Animal Matrix database http://www.compadre-db.org/ will foster collaborations between scientists and allow them to better answer questions such as how we can conserve the species that are critical for ecosystem services, and which may provide food for billions. More

 

  Physics

 

Mon 3 Nov 2014. NASA's Cold Atom Laboratory (CAL) mission has succeeded in producing a state of matter known as a Bose-Einstein condensate, a key breakthrough for the instrument leading up to its debut on the International Space Station in late 2016. A Bose-Einstein condensate (BEC) is a collection of atoms in a dilute gas that have been lowered to extremely cold temperatures and all occupy the same quantum state, in which all of the atoms have the same energy levels. At a critical temperature, atoms begin to coalesce, overlap and become synchronized like dancers in a chorus line. The resulting condensate is a new state of matter that behaves like a giant -- by atomic standards -- wave. More

 

نشرة أخبار التقانة الحيوية
نشرة الوقاية الإشعاعية وأمان المصادر المُشعّة
  بحث في الموقع
 
www.scirus.com

Arab Radiation Protection Association

 

 

 
Locations of visitors to this page
 

 

 

 

 

Copyright © 2005 - AECS - Damascus - Syria - Webmaster: smiso@aec.org.sy

 0 Visits Since 26/12/2004

Hits Stats

Last Updated :