Ultra high-sensitive, prompt response and recovering Pt/(Pt+SiO 2) cermet layer/GaN-based hydrogen sensor for life-saving applications

2020 ◽  
Vol 31 (46) ◽  
pp. 46LT02
Author(s):  
V S Santhosh N Varma. Bellamkonda ◽  
Brij Mohan Arora ◽  
Seshasainadh Pudi ◽  
Swagata Bhunia ◽  
Apurba Laha
Author(s):  
M Moellers ◽  
K Hammer ◽  
M Falkenberg ◽  
U Moellmann ◽  
W Klockenbusch ◽  
...  
Keyword(s):  

2020 ◽  
pp. 124-135
Author(s):  
I. N. G. Wardana ◽  
N. Willy Satrio

Tofu is main food in Indonesia and its waste generally pollutes the waters. This study aims to change the waste into energy by utilizing the electric charge in the pores of tofu waste to produce hydrogen in water. The tofu pore is negatively charged and the surface surrounding the pore has a positive charge. The positive and negative electric charges stretch water molecules that have a partial charge. With the addition of a 12V electrical energy during electrolysis, water breaks down into hydrogen. The test was conducted on pre-treated tofu waste suspension using oxalic acid. The hydrogen concentration was measured by a MQ-8 hydrogen sensor. The result shows that the addition of turmeric together with sodium bicarbonate to tofu waste in water, hydrogen production increased more than four times. This is due to the fact that magnetic field generated by delocalized electron in aromatic ring in turmeric energizes all electrons in the pores of tofu waste, in the sodium bicarbonate, and in water that boosts hydrogen production. At the same time the stronger partial charge in natrium bicarbonate shields the hydrogen proton from strong attraction of tofu pores. These two combined effect are very powerful for larger hydrogen production in water by tofu waste.


2010 ◽  
Vol 130 (8) ◽  
pp. 407-411
Author(s):  
Masatoshi Kariya ◽  
Kouhei Mizuhara ◽  
Tomiharu Yamaguchi ◽  
Toshihiko Kiwa ◽  
Shinsuke Kunitsugu ◽  
...  
Keyword(s):  

2009 ◽  
Vol 129 (4) ◽  
pp. 110-114 ◽  
Author(s):  
Tomiharu Yamaguchi ◽  
Masanori Takisawa ◽  
Toshihiko Kiwa ◽  
Hironobu Yamada ◽  
Keiji Tsukada

2020 ◽  
Vol 140 (4) ◽  
pp. 92-96
Author(s):  
Yuto Goda ◽  
Hiroto Shobu ◽  
Kenji Sakai ◽  
Toshihiko Kiwa ◽  
Kenji Kondo ◽  
...  

2012 ◽  
Vol 8 (1) ◽  
pp. 60 ◽  
Author(s):  
Zuzana Kaifoszova ◽  
Petr Widimsky ◽  
◽  

Primary percutaneous coronary intervention (PPCI) is recommended by the European Society of Cardiology (ESC) treatment guidelines as the preferred treatment for ST-elevation acute myocardial infarction (STEMI) whenever it is available within 90–120 minutes of the first medical contact. A survey conducted in 2008 in 51 ESC countries found that the annual incidence of hospital admissions for acute myocardial infarction is around 1,900 patients per million population, with an incidence of STEMI of about 800 per million. It showed that STEMI patients’ access to reperfusion therapy and the use of PPCI or thrombolysis (TL) vary considerably between countries. Northern, western and central Europe already have well-developed PPCI services, offering PPCI to 60–90 % of all STEMI patients. Southern Europe and the Balkans are still predominantly using TL. Where this is the case, a higher proportion of patients are left without any reperfusion treatment. The survey concluded that a nationwide PPCI strategy results in more patients being offered reperfusion therapy. To address the inequalities in STEMI patients’ access to life-saving PPCI, and to support the implementation of the ESC STEMI treatment guidelines in Europe, the Stent for Life (SFL) Initiative was launched jointly by the European Association of Percutaneous Cardiovascular Interventions (EAPCI) and EuroPCR in 2008. National cardiac societies from Bulgaria, France, Greece, Serbia, Spain and Turkey signed the SFL Declaration at the ESC Congress in Barcelona in 2009. The aim of the SFL Initiative is to improve the delivery of, and STEMI patients’ access to, life-saving PPCI and thereby reduce mortality and morbidity. Currently, 10 national cardiac societies support the SFL Initiative in their respective countries. SFL national action programmes have been developed and are being implemented in several countries. The formation of regional PPCI networks involving emergency medical services, non-percutaneous coronary intervention hospitals and PPCI centres is considered to be a critical success factor in implementing PPCI services effectively. This article describes examples of how SFL countries are progressing in implementing their national programmes, thus increasing PPCI penetration in Europe.


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