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Analysis and impact of process variability on performance of junctionless double gate VeSFEt

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Journal of Semiconductors 2017年第10期38卷 63-69页

作者： t.Chaudhary g.Khanna National Institute of technology

this paper presents an in-depth analysis of junctionless double gate vertical slit FEt（JLDg VeSFEt）device under process *** has been observed that junctionless FEts（JLDg VeSFEt） are significantly less sensitive to many process parameter variations due to their inherent device structure and geometric *** analysis reveals that the slit width,oxide thickness,radius of the device,gate length and channel doping concentration imperceptibly affect the device performance of JLDg VeSFEt in terms of variation in threshold voltage,on current,off current and subthreshold slope（Ssub） as compared to its junction based counterpart ***,because various short channel effects are well controlled in this *** maximum variation in off current for JLDg VeSFEt due to variation in different devices parameters is 5.6% whereas this variation is 38.8% for the MOS junction based ***,variation in doping concentration in the channel region displays a small deviation in the threshold voltage and on current characteristics of the MOSFEt device as compared to JL Dg VeSFEt.

关键词： JLDg VeSFEt process variation sensitivity scaling short channel effects oxide thickness channel thickness threshold voltage

Magneto optics and time resolved terahertz spectrocopy

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Chinese Physics B 2018年第7期27卷 112-119页

作者： t Dong Z g Chen N L Wang International Center for Quantum Materials School of PhysicsPeking UniversityBeijing 100871China Institute of Physics Chinese Academy of SciencesBeijing 100190China

Exploring, manipulating, and understanding new exotic quantum phenomena in condensed-matter systems have gen- erated great interest in the scientific community. Static and time resolved optical spectroscopies after photoexcitations are important experimental tools for probing charge dynamics and quasiparticle excitations in quantum materials. In Syner- getic Extreme Condition User Facility （SECUF）, we shall construct magneto-infrared and terahertz measurement systems and develop a number of ultrafast femtosecond laser based systems, including intense near to mid-infrared pump terahertz probe. In this article, we shall describe several systems to be constructed and developed in the facilities, then present some examples explaining the application of magneto optics and time resolved spectroscopy techniques.

关键词： magneto-optics infrared spectroscopy mid-infrared pump terahertz probe

Short term apoptotic activity of intravitreal bevacizumab on rabbit retina

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International Journal of Ophthalmology(English edition) 2013年第6期6卷 785-789页

作者： Fatih Mehmet trkc Mehmet Numan Alp gl trkc Sezer Kulacoglu glcan Kural Department of Ophthalmology Dicle University Faculty of Medicine Department of Ophthalmology Numune Training and Research Hospital Department of Pathology Dicle UniversityFaculty of Medicine Department of Pathology Numune Training and Research Hospital

AIM:to evaluate the safety and the short term apoptotic activity of intravitreai bevacizumab in rabbit eyes by histopathological ***:twenty-eight eyes of 14 rabbits were divided into three groups:8 rabbits in group 1 and 3rabbits in each of group 2 and group *** bevacizumab(1.25mg/0.05mL)was applied to the right eyes of each subject in group 1 and group 2(11 eyes)and the same volume of saline was applied to the left eyes of each subject in group 1 and group 3(11 eyes).the left eyes in group 2 and the right eyes in group 3were left untreated and used as *** eyes were used for histopathologic ***:After immunohistochemical staining with caspase-3 and p53,there was no histological evidence of toxicity to the retina and the optic nerve in any of the sections that were analyzed in all three *** addition,vascular endothelial cells located at the retina and the optic nerve tissues in all groups showed a similar staining pattern with caspase-3 and ***:Our study showed that intravitreai bevacizumab with the dose of 1.25mg/0.05mL caused no histological signs of toxicity or apoptotic activity on the rabbit retina.

关键词： apoptotic activity bevacizumab retina toxicity

DISSOLUtION KINEtICS OF PHOSPHAtE ORE IN ACIDIC SOLUtIONS

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Chinese Journal of Chemical Engineering 1994年第2期2卷 13-22页

作者：马三剑 E.t.M.J.Martynowicz g.J.Witkamp g.M.vanRosmalen Faculty of Chemical technology and Material Science Delft University of TechnologyLeeghwaterstraat 442628RZ DelftThe Netherlands

the dissolution kinetics of Florida and Jordan phosphate ore was studied in diluted nitric acid (0.2, 0.5, 1.0 mol ·L-1), and in phosphoric acid (55 wt% H3PO4) aqueous solutions. It was found that the hydrogen ions concentration is a controlling factor, but the calcium ions concentration can not affect the dissolution rate in the range of 0.0 and 2.0 wt% Ca2+. the effects of temperature, stirring intensity and the size of ore particles were also investigated. the transfer of hydrogen ion depends on the diffusion, while the calcium ions transfer is assumed to be depended on mechanically stripping. the shrinking core model with hydrogen ions diffusion control match the experimental results.

关键词： dissolution kinetics phosphate ore diffusion mechanically stripping hydrogen calcium ions concentration shrinking core model

Meshless Methods Coupled with Other Numerical Methods

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tsinghua Science and technology 2005年第1期10卷 8-15页

作者： Y.t.gU g.R.LIU CentreforAdvancedComputationsinEngineeringScience(ACES) DepartmentofMechanicalEngineeringNationalUniversityofSingapore10KentRidgeCrescentSingapore119260Singapore

Meshless or mesh-free (or shorten as MFree) methods have been proposed and achieved remarkable progress over the past few years. the idea of combining MFree methods with other existing numerical techniques such as the finite element method (FEM) and the boundary element method (BEM), is naturally of great interest in many practical applications. However, the shape functions used in some MFree methods do not have the Kronecker delta function property. In order to satisfy the combined conditions of displacement compatibility, two numerical techniques, using the hybrid displacement shape function and the modified variational form, are developed and discussed in this paper. In the first technique, the original MFree shape functions are modified to the hybrid forms that possess the Kronecker delta function property. In the second technique, the displacement compatibility is satisfied via a modified variational form based on the Lagrange multiplier method. Formulations of several coupled methods are presented. Numerical exam- ples are presented to demonstrate the effectiveness of the present coupling methods.

关键词： meshless method mesh-free method finite element method boundary element method coupling method stress analysis

gaseous Nitrogen Losses from Coastal Acid Sulfate Soils:A Short-term Study

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Pedosphere 2011年第2期21卷 197-206页

作者： B.C.t.MACDONALD O.t.DENMEAD I.WHItE g.BYRANt CSIRO Land and Water CanberraACT 2601 (Australia) the Fenner School of Environment and Society Australian National UniversityCanberraACT 0200 (Australia) University of Wollongong WollongongNSW 2500 (Australia)

NOx and N2O emissions from coastal acid sulfate soils （CASS） cultivated for sugarcane production were investigated on the coastal lowlands of northern New South Wales, Australia. two series of short-term measurements were made using chambers and micrometeorological techniques. Series i occurred during the wet season, the water-filled pore space （WFPS） was between 60%-80% and the site flooded during the measurements. Measurements were made directly after the harvest of soybean crop, which fixed an estimated 100 kg N ha-1, and the emission amounted to 3.2 kg NOx-N ha-1 （12 d） and 1.8 kg N20-N ha-1 （5 d）. Series 2 was made towards the end of the dry season when the WFPS was less than 60%. In Series 2-1 after an application of 50 kg N ha-1, emissions were markedly less, amounting to 0.9 kg N ha 1 over 10 d. During both series when the soil was moist, emissions of NOx were larger than those of N2O. the emission of NOx appeared to be haphazard, with little time dependence, but there was a clear diurnal cycle for N2O, emphasising the need for continuous measurement procedures for both gases. these results suggest that agricultural production on CASS could be important sources of greenhouse gases and nitrogen practices will need to be optimised to reduce the offsite effects of atmospheric warming, acidification or nitrification. Many questions still remain unanswered such as the emissions during the soybean bean filling stage and crop residue decomposition, the longer-term losses following the fertiliser application and emissions from CASS under different land uses.

关键词： denitrification greenhouse gases nitrification nitrogen oxides nitrous oxide

NORM SUMMABILItY OF NRLUND LOgARItHMIC MEANS ON UNBOUNDED VILENKIN gROUPS

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Analysis in theory and Applications 2008年第1期24卷 1-17页

作者： I. Blahota g. gàt Institute of Mathematics and Computer Science Hungary

the （Noerlund） logarithmic means of the Fourier series is：tnf=1/ln ^n-1∑k=1 Skf/n-k, where ln=^n-1∑k=1 1/k In general, the Fej6r （C, 1） means have better properties than the logarithmic ones. We compare them an... 详细信息

关键词： unbounded Vilenkin group Fejer means logarithmic means norm convergence

Effect of high anodic polarization on the passive layer properties of superduplex stainless steel friction stir welds at different chloride electrolyte pH values and temperatures

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International Journal of Minerals,Metallurgy and Materials 2019年第6期26卷 710-721页

作者： L.A.Santa-Cruz g.Machado A.A.Vicente t.F.C.Hermenegildo t.F.A.Santos Department of Mechanical Engineering Universidade Federal de PernambucoAv.da Arquiteturas/n50740-550RecifePEBrazil Center of Nanotechnology Centro de Tecnologias Estratégicas do NordesteCETENERecifePEBrazil Department of Chemical Engineering Universidade de Sao PauloSao PauloSPBrazil

the conditions used for friction stir welding of duplex stainless steels determine the resulting mechanical and corrosion performance of the *** study investigates the corrosion resistance of UNS S32750 and S32760 superduplex stainless steels(SDSSs)joined by friction stir welding,employing cyclic polarization,Mott–Schottky,and microscopy techniques for *** microscopy images indicated the presence of a deleterious intermetallic phase after electrolytic etching of S32760,as well as decreased corrosion *** presence of molybdenum in the steels promoted better passive behavior at low *** Mott–Schottky curves revealed p-n heterojunction behavior of the passive *** acquired after the polarization test by scanning electron microscopy showed higher passivation propensity with increases of temperature and pH.

关键词： superduplex stainless steel friction stir welding corrosion resistance cyclic polarization Mott–Schottky

Existence and Nonexistence of Nontrivial Weak Solution for a Class of general Capillarity Systems

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Acta Mathematicae Applicatae Sinica 2014年第4期30卷 1121-1130页

作者： g.A.AFROUZI N.t.CHUNg Z.NAgHIZADEH Department of Mathematics Faculty of Mathematical SciencesUniversity of Mazandaran Department of Mathematics Quang Binh University312 Ly Thuong Kiet

the aim of this paper is to study the nonexistence and existence of nonnegative, nontrivial weak solution for a class of general capillarity systems. the proofs rely essentially on the minimum principle combined with ... 详细信息

关键词： weak solutions nonexistence multiplicity capillarity systems variational methods