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稀有金属材料与工程 2000年第3期29卷 145-148页

作者：介万奇 E.G.Kandalova 张瑞杰 v.I.Nikitin 西北工业大学西安710072 萨马拉国立工业大学

介绍了高熔点化合物颗粒增强的铝基复合材料的一种先进制备方法 ,即自蔓延高温合成法 (SHS法 ) ,并以Al3Ti/ Al为例进行了实验研究。结果表明 ,将 Ti粉与 Al粉混合 ,在铝合金液中进行自蔓延高温合成 ,可有效地控制 Al3Ti的形态。其中 Al... 详细信息

介绍了高熔点化合物颗粒增强的铝基复合材料的一种先进制备方法 ,即自蔓延高温合成法 (SHS法 ) ,并以Al3Ti/ Al为例进行了实验研究。结果表明 ,将 Ti粉与 Al粉混合 ,在铝合金液中进行自蔓延高温合成 ,可有效地控制 Al3Ti的形态。其中 Al∶Ti比是控制 Al3Ti形态的关键参数。当 Al∶Ti比远小于理论化学计量比 3∶ 1时 ,获得针状 Al3Ti组织。而当该比值等于或大于 3∶ 1时则获得块状 Al3Ti组织 ,其分布也更均匀。但该比值太大 (大于约3.75∶ 1)时 ,则因 Al粉升温和熔化吸热 ,将使得自蔓延合成反应终止。

关键词： SHS法复合材料 A13Ti/Al 制备

Transanal endoscopic microsurgery: The first attempt in treatment of rectal amyloidoma

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World Journal of Gastroenterology 2015年第4期21卷 1324-1328页

作者： Richa Sharma virgilio v George Department of General Surgery School of MedicineIndiana UniversityIndianapolisIN 46202United States

Localized amyloidosis is characterized by amyloid protein deposition restricted to one organ or tissue without systemic involvement. Gastrointestinal manifestations of localized amyloidoma are unusual, which makes amyloidoma restricted to the rectum a very rare diagnosis requiring a high index of suspicion. We present a rare account for rectal amyloidoma with an unusual presentation of obstructive symptoms and its treatment using a sophisticated surgical modality, transanal endoscopic microsurgery(TEM), which resulted in complete excision of the lesion without hospitalization and complications. The successful treatment for thisrectal amyloidoma using TEM emphasizes the need to broaden its application in the treatment of various rectal lesions while preserving organ function and decreasing recurrence.

关键词： Transanal endoscopic microsurgery Amyloidoma Local

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Neutrino Riddles

Journal of Modern Physics 2012年第10期3卷 1592-1593页

作者： v. P. Efrosinin Institute for Nuclear Research Russian Academy of Sciences Moscow Russia

The possible reasons of features of the nature of neutrino are discussed.

关键词： Neurino Oscillations Masses

Possibilities of the practical use of a stationary strain gradient in the interelectrode volume of unpolarized ferroceramic plates

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Journal of Advanced Dielectrics 2020年第1期10卷 61-67页

作者： Yu.N.Zakharov v.P.Sakhnenko I.A.Parinov I.P.Raevsky M.A.Bunin v.A.Chebanenko M.A.Zaerko E.I.Sitalo A.A.Pavelko L.I.Kiseleva Research Institute of Physics and Physics Faculty Southern Federal University Rostov-on-Don 344090 Russia Institute of Mathematics Mechanics and Computer Sciences Southern Federal UniversityRostov-on-Don 344090Russia Federal Research Centre The Southern Scientific Centre of the Russian Academy of The Sciences Rostov-on-Don 344004 Russia

It has been established that in plates made of hot-pressed ferroelectric ceramics PZT-19(Tc=300℃),after metal electrodes from Ag are burned into opposite surfaces with different depths of mechanical damage,counter-directional stationary deformation gradients and,accordingly,internal electric displacement fields create a stationary flexoelectric *** a result,unpolarized ceramics below the Curie temperature become a pyroelectric,and above it become a pyroelectric *** polishing the less damaged surface and replacing the Ag(valency v=3)electrode with Cr(v=6)by thermal evaporation in vacuum from the intact surface,a new thermally stable polarization is created,directed from the damaged surface in the interelectrode *** plates have an asymmetric dielectric hysteresis loop,retain the values of the pyroelectric effect and piezoelectric effect in the ferroelectric phase,as well as the bolometric effect in the paraelectric phase after repeated heating cycles to 400℃ and cooling to T_(norm).

关键词： Strain gradient unpolarized ferroceramic pyroelectric effect bolometer

Ten years of spasers and plasmonic nanolasers

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Light(Science & Applications) 2020年第1期9卷 1133-1153页

作者： Shaimaa I.Azzam Alexander v.Kildishev Ren-Min Ma Cun-Zheng Ning Rupert Oulton vladimir M.Shalaev Mark I.Stockman Jia-Lu Xu Xiang Zhang School of Electrical&Computer Engineering and Birck Nanotechnology Center Purdue UniversityWest LafayetteIN 47907USA Purdue Quantum Science and Engineering Institute Purdue UniversityWest LafayetteIN 47907USA State Key Lab for Mesoscopic Physics and School of Physics Peking UniversityBeijingChina Frontiers Science Center for Nano-optoelectronics&Collaborative Innovation Center of Quantum Matter BeijingChina Department of Electronic Engineering and International Center for Nano-Optoelectronics Tsinghua University100084 BeijingChina School of Electrical Computerand Energy EngineeringArizona State UniversityTempeAZ 85287USA The Blackett Laboratory Imperial College LondonSouth KensingtonLondon SW72AZUK Center for Nano-Optics(CeNO)and Department of Physics and Astronomy Georgia State UniversityAtlantaGA 30303USA Nanoscale Science and Engineering Center University of CaliforniaBerkeleyBerkeleyCA 94720USA Faculties of Sciences and Engineering University of Hong KongHong KongChina

Ten years ago,three teams experimentally demonstrated the first spasers,or plasmonic nanolasers,after the spaser concept was first proposed theoretically in *** overview of the significant progress achieved over the last 10 years is presented here,together with the original context of and motivations for this *** a general introduction,we first summarize the fundamental properties of spasers and discuss the major motivations that led to the first demonstrations of spasers and *** is followed by an overview of crucial technological progress,including lasing threshold reduction,dynamic modulation,room-temperature operation,electrical injection,the control and improvement of spasers,the array operation of spasers,and selected applications of single-particle *** prospects are presented in relation to several directions of development,including further miniaturization,the relationship with Bose-Einstein condensation,novel spaser-based interconnects,and other features of spasers and plasmonic lasers that have yet to be realized or challenges that are still to be overcome.

关键词： lasers overcome operation

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电气产品的安全原则与Tüv认证服务

电子质量 2002年第8期 100-102页

作者： Guangzhou office of T u v Tüv产品服务有限公司广州办事处

说明电气产品的安全使用中可能发生的故障、异常和对人、环境造成的危害。提出相应防护措施并介绍Tüv认证服务。

关键词：电气产品安全原则防护措施 Tuev 认证服务

Deep learning based computer-aided diagnosis for neuroimaging data: focused review and future potential

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Neuroimmunology and Neuroinflammation 2018年第1期5卷 1-3页

作者： v.B.Surya Prasath Computational Imaging and visAnalysis(CIvA)Lab Department of Computer ScienceUniversity of Missouri-ColumbiaColumbiaMO 65211USA Division of Biomedical Informatics Cincinnati Children's Hospital Medical Center(CCHMC)CincinnatiOH 45229USA Department of Biomedical Informatics College of MedicineUniversity of CincinnatiOH 45267USA

Automatic image analysis techniques applied to neuroimaging data in general, and magnetic resonance imaging (MRI), and functional MRI (fMRI) in particular, have proven to be effective computer-aided diagnosis (CAD) tools in neuroscience(1-4)Recently, the advancements in machine learning techniques combined with the wide availability of computational power have proven to be efficient in solving previously difficult problems in analyzing neuroimaging data. At the forefront of these advancements is the usage of deep (artificial) neural network architectures that led robust learning based techniques to attack challenging problems such as segmentation and classification in neuroimaging data[5-8].

关键词： Deep learning neuroimaging data future potential

Laser peeler regime of high-harmonic generation for diagnostics of high-power focused laser pulses

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Matter and Radiation at Extremes 2023年第3期8卷 10-17页

作者： S.E.Perevalov A.M.Pukhov M.v.Starodubtsev A.A.Soloviev Institute of Applied Physics of the Russian Academy of Sciences 46 Ulyanov st.Nizhny Novgorod 603950Russia Institut für Theoretische Physik I HeinrichHeine-Universität Düsseldorf Universitätsstraße 140225 DüsseldorfGermany

A method for measuring the intensity of focused high-power laser pulses based on numerical simulation of high-harmonic generation in the laser peeler regime is *** dependence of the efficiency of high-harmonic generation on the laser pulse intensity and the spatial parameters during interaction with solid targets is studied *** simulation clearly shows that the amplitude of the generated harmonics depends on the laser pulse *** proposed method is simpler than similar intensity measurement techniques and does not require complex preparation.

关键词： laser power harmonic

Methane Formation by the Reaction of Coalbed Carbon with Water

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Geomaterials 2011年第1期1卷 21-23页

作者： v. E. vigdergauz Russian Academy of Sciences

There is proposed a mechanism of methane and carbon dioxide formation by the direct reaction of carbon with water during catastrophic events in the mining of coal deposits. Thermodynamics of the reaction is dis-cussed.

关键词： Methane Formation Coal Mining Water Carbon Dioxide Reaction Thermodynamics