scholarly journals Authors’ reply to: Comment on the article by Dr. N. Shakrawal: Barrier device prototype for open tracheotomy during COVID-19 pandemic

2020 ◽  
Author(s):  
Dr. Wellington Alves Filho
Keyword(s):  
Barrier Device

The effect of temperature and time on the properties of 2D Cs2ZnBr4 perovskite nanocrystals and its application in a Schottky barrier device

2021 ◽  
Author(s):  
Olusola Akinbami ◽  
Grace N Ngubeni ◽  
Francis Otieno ◽  
Rudo Kadzutu-Sithole ◽  
Cebisa Linganiso ◽  
...  
Keyword(s):  
Solar Cell ◽  
Schottky Barrier ◽  
Effect Of Temperature ◽  
Inorganic Perovskite ◽  
Perovskite Nanocrystals ◽  
The Stability ◽  
Barrier Device

2D hybrid perovskites are promising materials for solar cell applications, in particular, cesium based perovskite nanocrystals as they offer the stability that is absent in organic-inorganic perovskite. However, the most...

c-Si (n +)/a-Si Alloy/Pd Schottky Barrier Device for the Effective Evaluation of Photovoltaic Performance of a-Si Alloy Materials

1995 ◽  
Vol 377 ◽  
Author(s):  
X. Deng ◽  
S. J. Jones ◽  
J. Evans ◽  
M. Izu
Keyword(s):  
Solar Cell ◽  
Schottky Barrier ◽  
Carrier Transport ◽  
Metal Layer ◽  
Photovoltaic Performance ◽  
Red Light ◽  
Metal Structure ◽  
Evaluation Tool ◽  
Barrier Device ◽  
Alloy Metal

ABSTRACTThe Schottky barrier device with a metal/a-Si (n+) /a-Si alloy/metal structure has been widely used as an alternative evaluation tool for the photovoltaic performance of a-Si alloy material since it more reliably reflects the carrier transport in a solar cell than the conventional material characterization tool such as PDS, CPM, and SSPG, and is easier to be fabricated compared with a complete nip solar cell. However, a multiple chamber device making system is still needed to fabricate such a device since one does not want to deposit the a-Si intrinsic material to be studied together with an n+ layer in the same chamber. We have explored the use of a Schottky barrier device deposited on heavily doped n-type crystalline wafer substrate, c-Si (n+) /a-Si alloy/metal, as an evaluation tool for a-Si alloy materials. In this device, besides the evaporation of a thin semi-transparent metal layer, only the active a-Si alloy layer needs to be deposited using the plasma enhanced or other deposition techniques. We have compared the performance of such a device with that of reference n-i-p solar cells deposited at the same time and demonstrated that the FF measured under weak red light show a good correlation between these two types of devices. Therefore the c-Si (n+) /a-Si alloy/metal device can be used as a convenient technique to reliably evaluate the material performance in a solar cell device.

Negatice resistance in a magnetic barrier device

2006 ◽  
Author(s):  
Sungjung Joo ◽  
Jinki Hong ◽  
Kungwon Rhie ◽  
Kyung-Ho Shin ◽  
Jungseung Kim ◽  
...  
Keyword(s):  
Magnetic Barrier ◽  
Barrier Device

A novel endoscopic shield: a barrier device to minimize virus transmission during endoscopy

Endoscopy ◽  
2021 ◽  
Author(s):  
Hiroya Ueyama ◽  
Yoichi Akazawa ◽  
Toshio Fujisawa ◽  
Hiroyuki Isayama ◽  
Akihito Nagahara
Keyword(s):  
Virus Transmission ◽  
Barrier Device

Effectiveness and feasibility of using a physical barrier device in reducing rates of microbial contamination of sphygmomanometer cuffs

2011 ◽  
Vol 12 (6) ◽  
pp. 241-245 ◽  
Author(s):  
Nitin Bhanot ◽  
Sriharsha Rao ◽  
Shobha Sharma ◽  
Edmond S Malka ◽  
Monica Ghitan ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Pilot Study ◽  
Bacterial Contamination ◽  
Microbial Contamination ◽  
Healthy Individuals ◽  
Intervention Period ◽  
Physical Barrier ◽  
Intervention Phase ◽  
Barrier Device ◽  
Disposable Plastic

phygmomanometers are frequently contaminated with bacteria and are implicated in the transmission of microbes. A pilot study was conducted to determine the effectiveness and feasibility of using a physical barrier device in reducing rates of microbial contamination of sphygmomanometer cuffs. Blood pressure recordings were made with and without a disposable plastic device on healthy individuals to ensure that it did not interfere with the accuracy of readings. Baseline rates of microbial colonisation of sphygmomanometer cuffs were obtained over a six week period. For six weeks the device was applied to patients’ arms before measuring blood pressure, and sphygmomanometer cuffs were recultured during the intervention period. No difference was found in blood pressure recordings with and without the device. No difference in rates of bacterial contamination was observed during the intervention phase of the study. A disposable plastic device acting as a physical barrier may not reduce surface contamination of sphygmomanometer cuffs.

Validation of a novel smartphone application‐enabled, patient‐operated skin barrier device

2019 ◽  
Vol 25 (5) ◽  
pp. 612-617 ◽  
Author(s):  
Erin E. Grinich ◽  
Anuja V. Shah ◽  
Eric L. Simpson
Keyword(s):  
Skin Barrier ◽  
Smartphone Application ◽  
Barrier Device
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