نتایج جستجو برای: molecular diode

تعداد نتایج: 655445  

2001
Sam Ben-Yaakov Ilya Zeltser

Boost derived Active Power Factor Correction (APFC) imposes high stress on the main diode and main switch due to the high reverse voltage which may result in a very high reverse current. This study analyses the engineering requirements of the diode and transistor in APFC applications and compares a design that uses a fast silicon diode plus lossless snubber to a design with a Silicon Carbide (S...

2009
S. Mahalingam P. Stoltz

Three dimensional particle-in-cell (PIC) simulations are conducted to measure the space charge limited (SCL) currents in coaxial cylindrical diodes. New cut-cell emission and absorption boundary algorithms implemented in the electromagnetic PIC code, VORPAL are utilized for this study. Comparisons of VORPAL SCL current results are made with i) theoretical SCL current results for the one dimensi...

2008
Haiying He Ravindra Pandey Shashi P. Karna

The electronic conduction of a novel, three-terminal molecular architecture, analogous to a heterojunction bipolar transistor is studied. In this architecture, two diode arms consisting of donor-acceptor molecular wires fuse through a ring, while a gate modulating wire is a conjugated wire. The calculated results show the enhancement or depletion mode of a transistor by applying a gate field a...

Journal: :journal of lasers in medical sciences 0
güzin neda hasanoglu erbasar private practice, ankara, turkey burcu senguven gazi university, school of dentistry, department of oral pathology, ankara, turkey sibel elif gultekin gazi university, school of dentistry, department of oral pathology, ankara, turkey sedat cetiner gazi university, school of dentistry, department of oral surgery, ankara, turkey

introduction: pyogenic granuloma (pg) is a prevalent inflammatory hyperplasia of skin and oral mucosa which is often caused by constant low-grade local irritation, traumatic injury or hormonal factors. in many cases, gingival irritation and inflammation due to poor oral hygiene are precipitating factors. oral pg occurs predominantly on the gingiva, but it is also encountered on the lips, tongue...

2018
Rogerio Hamerschmidt Stephanie Sbizera Saab Bettina Carvalho Carolina do Carmo

Introduction  Diode laser is a new alternative in stapes surgery for otosclerosis. The present study is the first to compare the short-term results of the surgery performed using diode laser to those obtained through the conventional fenestration technique. Objective  To use audiometry to establish a comparative analysis between the functional results obtained through surgery for otosclerosis u...

Journal: :International archives of otorhinolaryngology 2016
Helena Hotz Arroyo Larissa Neri Carina Yuri Fussuma Rui Imamura

UNLABELLED Introduction The diode laser has been frequently used in the management of laryngeal disorders. The portability and functional diversity of this tool make it a reasonable alternative to conventional lasers. However, whether diode laser has been applied in transoral laser microsurgery, the ideal parameters, outcomes, and adverse effects remain unclear. Objective The main objective of ...

2001
S. S. Courts P. R. Swinehart C. J. Yeager

While the introduction of yet another cryogenic diode thermometer is not earth shattering, a new diode thermometer, the DT-600 series, recently introduced by Lake Shore Cryotronics, possesses three features that make it unique among commercial diode thermometers. First, these diodes have been probed at the chip level, allowing for the availability of a bare chip thermometer matching a standard ...

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