نتایج جستجو برای: dielectric degradation

تعداد نتایج: 189549  

Journal: :IOP Conference Series: Materials Science and Engineering 2021

Journal: :جنگل و فرآورده های چوب 0
کژال مرادیان کارشناس ارشد صنایع خمیر و کاغذ، دانشکدة منابع طبیعی، دانشگاه تهران، کرج، ایران محمد آزادفلاح استادیار، گروه علوم و صنایع چوب و کاغذ، دانشکدة منابع طبیعی، دانشگاه تهران، کرج، ایران امیر عباس شایگانی اکمل استادیار، گروه مهندسی برق، دانشکدة مهندسی برق و کامپیوتر، دانشگاه تهران، تهران، ایران علی عبدالخانی دانشیار، گروه علوم و صنایع چوب و کاغذ، دانشکدة منابع طبیعی، دانشگاه تهران، کرج، ایران

the oil-paper insulation is a type of an inexpensive combination insulation system in oil-filled power transformers. in this study the dielectric and strength properties of canola oil and mineral oil impregnated hand-sheet papers were investigated. all hand sheets were made of unbleached bagasse soda pulp with two different freeness levels of 200 ± 25 ml, csf and 400± 25 ml,csf. after drying th...

2013
Junda Zhu Jae M. Yoon David He Yongzhi Qu Eric Bechhoefer

In order to reduce the costs of wind energy, it is necessary to improve the wind turbine availability and reduce the operational and maintenance costs. The reliability and availability of a functioning wind turbine depend largely on the protective properties of the lubrication oil for its drive train subassemblies such as the gearbox and means for lubrication oil condition monitoring and degrad...

1999
Gyeong S. Hwang Konstantinos P. Giapis

While observations of charging damage during plasma-assisted deposition have been erratic thus far, concern abounds that it may worsen as aspect ratios increase and high-density plasmas are used more frequently. Simulations of pattern-dependent charging during interlevel dielectric deposition reveal that the initial conformality of the dielectric film plays a crucial role in metal line charge u...

2004
J. L. Autran D. Munteanu M. Houssa M. Bescond X. Garros C. Leroux

The electrical behavior of decananometer MOS transistors with high-κ dielectric gate stack has been investigated using 2D numerical simulation. Two important electrostatic limitations of high-κ materials have been analyzed and discussed in this work: i) the gate-fringing field effects which compromise short-channel performance when simultaneously increasing the dielectric constant and its physi...

1998
Gyeong S. Hwang Konstantinos P. Giapis

Monte Carlo simulations of pattern-dependent charging during interlevel dielectric ~ILD! deposition in high-density plasmas reveal that the initial conformality of the ILD film plays a crucial role in metal line charging up and the subsequent degradation to the buried gate oxide to which the metal line is connected. Line charging occurs when the top dielectric is thick enough to prevent tunneli...

2014
Hei Wong Jian Zhou Jieqiong Zhang Hao Jin Kuniyuki Kakushima Hiroshi Iwai

When pushing the gate dielectric thickness of metal-oxide-semiconductor (MOS) devices down to the subnanometer scale, the most challenging issue is the interface. The interfacial transition layers between the high-k dielectric/Si and between the high-k dielectric/gate metal become the critical constraints for the smallest achievable film thickness. This work presents a detailed study on the int...

2000
C. L. Canedy Hao Li S. P. Alpay L. Salamanca-Riba A. L. Roytburd R. Ramesh

A series of heteroepitaxial Ba0.6Sr0.4TiO3 were grown on 0.29(LaAlO3):0.35(Sr2TaAlO6) substrates using pulsed-laser deposition. X-ray characterization revealed compressive in-plane stresses in the thinnest films, which were relaxed in a continuous fashion with increasing thickness. A theoretical treatment of the misfit strain was in good agreement with the measured out-of-plane lattice paramete...

2002
Stefan Scheel

Research in the field of quantum information theory nowadays focusses more and more on the possibilities of practical implementation of quantum information processes. One of the most promising attempts has seemed to be the usage of entangled Gaussian states since they are rather easy to produce with optical means. In this article we will review properties of Gaussian states and describe operati...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید