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Some　Aspects　of　the　Characteristics　of　Monsoon　Disturbances　Using　a　Combined　Barotropic－Baroclinic　Model

Advances in Atmospheric Sciences 1995年第4期12卷 487-506页

作者： N. r. Parija S. K. Dash Centre for Atmospheric Sciences Indian Institute of Technology New Delhi India

A standing rossby wave of wavelength 30°longitude with a finite amplitude along the meridional direction is superimposed on the zonal mean component of the monsoon flow and the stability of such a flow is examined by a quasi-geostrophic *** well as by a quasi-geostrophic combined barotropic and baroclinic model on a beta plane centered at 18°N latitude. It is found that the growth of synoptic scale disturbance increases with the amplitude of the meridional wind. The barotropic stability analysis at 700 hPa pressure level shows that there is a critical value (Umaz=11 m/s) of the maximum mean zonal wind below which the computed disturbance moves to the west due to the wave-wave superposition. For maximum mean zonal wind greater that 11m /s, the westerly wind dominates and the disturbance moves to the east. In another analysis the stability of the zonally asymmetric basic now is studied with a combined barotropic-barotropic model where cumulus heating is included. The growth rate, intensity, horizontal scale and the westward velocity of computed disturbances reasonably agree with those of observed monsoon disturbances. The fastest growing mode has a horizontal wavelength of 2000 kms and the e-folding time is about 3 days,when the meridional amplitude of the rossby wave is 4m/ s at 700 hPa pressure level. When cumulus heating is included in the analysis the intensity of geopotential perturbation at 700 hPa disturbance is -304 m2 / s2. Energy calculations show that the kinetic energy of the mean zonal flow is the main source of energy for the perturbation to *** is also t'ound that the contribution of the kinetic energy of the basic rossby wave to the growth of perturbation is more in comparison to the available potential energy.

关键词： Monsoon disturbance rossby wave Combined barotropic-baroclinic stability

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role　of　Triad　Kinetic　Energy　Interactions　for　Maintenance　of　Upper　Tropospheric　Low　Frequency　Waves　during　Summer　Monsoon　　1988

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Advances in Atmospheric Sciences 1996年第1期13卷 91-102页

作者： D. r. Chakraborty N. K. Agarwal Indian institute of Tropical Meteorology

In order to determine nonlinear energy exchanges into individual triad interactions in the frequency domain,spectral formulas are derived by use of the cross-spectral technique. First time attempt has been made to understandthe problem of maintenance of low frequency waves for tropical weather system by using this *** TOGAbasic level ill daily wind analyses on a 2.5 degree square grid around the global zone from 20°S-30°N at 200 hpa for92-day periods covering June, July and August of 1988 are used. Kinetic energy is gained at high frequencies and lostat low *** the planetary scale dynamics over tropics, barotropic nonlinear energy transfer plays a *** frequency wave of period 45 day loses maximum amount of energy when it interacted with frequencies ofperiods 92 day and 30 day.45 day cycle is also the main source of energy for other frequencies. Distrubances of periodl 5 day gain maximum amount of *** major contribution comes from the triad interaction of the frequencies.North of 20'N low frequency waves of period 30 to 92--day gain energy through nonlinear triadinteraction with the maximum gain at 22.5'N. The study may help to investigate the rapid loss of predictability of lowfrequency modes over tropics.

关键词： Cross spectral technique Low frequency mode

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Performance analysis of charge plasma based dual electrode tunnel FET

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Journal of Semiconductors 2016年第5期37卷 35-42页

作者： Sunny Anand S.Intekhab Amin r.K.Sarin Department of Electronics and Communication Engineering Dr.B.R.Ambedkar National Institute of Technology Jalandhar

This paper proposes the charge plasma based dual electrode doping-less tunnel FET （DEDLTFET）. The paper compares the device performance of the conventional doping-less TFET （DLTFET） and doped TFET （DGTFET）. DEDLTEFT gives the superior results with high ON state current （/ON - 0.56 mA/um）, ION/IoFv ratio - 9.12 ×1013 and an average subthreshold swing （AV-SS -- 48 mV/dec）. The variation of different device parameters such as channel length, gate oxide material, gate oxide thickness, silicon thickness, gate work function and temperature variation are done and compared with DLTFET and DGTFET. Through the extensive analysis it is found that DEDLTFET shows the better performance than the other two devices, which gives the indication for an excellent future in low power applications.

关键词： band to band tunneling (BTBT) charge plasma doping-less tunnel field effect transistor (DLTFET) average subthreshold swing drain induced barrier lowering (DIBL)

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PDQ integrative oncology : complementary therapies in cancer care /

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丛书名： PDQ series

2005年

作者： Cassileth Barrie r.

来源：畅想之星图书光盘版（南... 评论

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New insights on premature ejaculation： a review of ：lefinition, classification, prevalence and treatmeni

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Asian Journal of Andrology 2012年第6期14卷 822-829页

作者： Ege C Serefoglu Theodore r Saitz Tulane University School of Medicine Department of Urology New Orleans LA 70112 USA

There are ongoing debates about the definition, classification and prevalence of premature ejaculation （PE）. The first evidence-based definition of PE was limited to heterosexual men with lifelong PE who engage in vaginal intercourse. Unfortunately, many patients with the complaint of PE do not meet these criteria. However, these men can be diagnosed as one of the PE subtypes, namely acquired PE, natural variable PE or premature-like ejaculatory dysfunction. Nevertheless, the validity of these subtypes has not yet been supported by evidence. The absence of a universally accepted PE definition and lack of standards for data acquisition have resulted in prevalence studies that have reported conflicting rates. The very high prevalence of 20%-30% is probably due to the vague terminology used in the definitions at the time when such surveys were conducted. Although many men may complain of PE when questioned for a population-based prevalence study, only a few of them will actively seek treatment for their complaint, even though most of these patients would define symptoms congruent with PE. The complaints of acquired PE patients may be more severe, whereas complaints of patients experiencing premature-like ejaculatory dysfunction seem to be least severe among men with various forms of PE. Although numerous treatment modalities have been proposed for management of PE, only antidepressants and topical anaesthetic creams have currently been proven to be effective. However, as none of the treatment modalities have been approved by the regulatory agencies, further studies must be carried to develop a beneficial treatment strategy for PE.

关键词： definition ejaculatory disorders epidemiology premature ejaculation sexual dysfunction treatment

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Prediction of blast-induced flyrock in Indian limestone mines using neural networks

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Journal of rock Mechanics and Geotechnical Engineering 2014年第5期6卷 447-454页

作者： r.Trivedi T.N.Singh A.K.raina Central Institute of Mining and Fuel research Council of Scientific and Industrial Research (CSIR)DhanbadIndia Department of Earth Sciences Indian Institute of Technology BombayPowaiMumbai 400076India Central Institute of Mining and Fuel research Council of Scientific and Industrial Research (CSIR)Regional CentreNagpurIndia

Frequency and scale of the blasting events are increasing to boost limestone production. Mines areapproaching close to inhabited areas due to growing population and limited availability of land resourceswhich has challenged the management to go for safe blasts with special reference to opencast *** study aims to predict the distance covered by the flyrock induced by blasting using artificial neuralnetwork （ANN） and multi-variate regression analysis （MVrA） for better assessment. Blast design andgeotechnical parameters, such as linear charge concentration, burden, stemming length, specific charge,unconfined compressive strength （UCS）, and rock quality designation （rQD）, have been selected as inputparameters and flyrock distance used as output parameter. ANN has been trained using 95 datasets ofexperimental blasts conducted in 4 opencast limestone mines in India. Thirty datasets have been used fortesting and validation of trained neural network. Flyrock distances have been predicted by ANN, MVrA,as well as further calculated using motion analysis of flyrock projectiles and compared with the observeddata. Back propagation neural network （BPNN） has been proven to be a superior predictive tool whencompared with MVrA. 2014 Institute of rock and Soil Mechanics, Chinese Academy of Sciences. Production and hosting byElsevier B.V. All rights reserved.

关键词： Artificial neural network(ANN) Blasting Opencast mining Burden Stemming Specific charge Flyrock

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Author Guidelines

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世界耳鼻咽喉头颈外科杂志(英文) 2023年第3期9卷 262-269页

作者： razavi, Christopher r. Wang, Tom Icahn Sch Med Mt Sinai Dept Otolaryngol Head & Neck Surg Div Facil Plast & Reconstruct Surg New York NY 10029 USA Oregon Hlth & Sci Univ Dept Otolaryngol Head & Neck Surg Div Facil Plast & Reconstruct Surg Portland OR 97201 USA

*** Thank you for your interest in World Journal of Otorhinolaryngology-Head&Neck Surgery(WJOHNS).Note that submission implies that the content has not been published or submitted for publication elsewhere except as a... 详细信息

关键词： implies content Surgery

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3D random Voronoi grain-based models for simulation of brittle rock damage and fabric-guided micro-fracturing

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Journal of rock Mechanics and Geotechnical Engineering 2014年第6期6卷 506-521页

作者： E.Ghazvinian M.S.Diederichs r.Quey Geo Engineering Centre Queen's UniversityKingston ON Canada Ecole Nationale Supérieure des Mines de Saint-Etienne CNRS UMR 5307 France

A grain-based distinct element model featuring three-dimensional （3D） Voronoi tessellations （randompoly-crystals） is proposed for simulation of crack damage development in brittle rocks. The grainboundaries in poly-crystal structure produced by Voronoi tessellations can represent flaws in intact rockand allow for numerical replication of crack damage progression through initiation and propagation ofmicro-fractures along grain boundaries. The Voronoi modelling scheme has been used widely in the pastfor brittle fracture simulation of rock materials. However the difficulty of generating 3D Voronoi modelshas limited its application to two-dimensional （2D） codes. The proposed approach is implemented inNeper, an open-source engine for generation of 3D Voronoi grains, to generate block geometry files thatcan be read directly into 3DEC. A series of Unconfined Compressive Strength （UCS） tests are simulated in3DEC to verify the proposed methodology for 3D simulation of brittle fractures and to investigate therelationship between each micro-parameter and the model＇s macro-response. The possibility of numericalreplication of the classical U-shape strength curve for anisotropic rocks is also investigated innumerical UCS tests by using complex-shaped （elongated） grains that are cemented to one another alongtheir adjoining sides. A micro-parameter calibration procedure is established for 3D Voronoi models foraccurate replication of the mechanical behaviour of isotropic and anisotropic （containing a fabric） rocks. 2014 Institute of rock and Soil Mechanics, Chinese Academy of Sciences. Production and hosting byElsevier B.V. All rights reserved.

关键词： Numerical modelling 3D Voronoi tessellation Discrete element method Grain-based model Crack damage thresholds Fabric-guided micro-fracturing Anisotropy

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SEMILEPTONIC BOTTOM HADrON DECAYS AND THE DETErMINATION OF Ycb AND Vub

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Chinese Physics C 2016年第10期40卷 770-784页

作者： r. Kowalewski T. Mannel Univ. of Victoria Canada Univ. of Siegen Germany

INTrODUCTION Precision determinations of ｜Vub｜ and ｜Vcb｜ are central to testing the CKM sector of the Standard Model, and complement the measurements of CP asymmetries in B decays. The length of the side of the unitarity triangle opposite the well-measured angle β is proportional to the ratio ｜ Vub｜/｜Ycb｜; its determination is a high priority of the heavy-flavor physics program.

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GENErATION AND MAINTENANCE OF A FIELD rEVErSED CONFIGUrATION BY MEANS OF A rOTATING MAGNETIC FIELD

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Chinese Physics Letters 1987年第10期4卷 461-464页

作者： A.Knight WU Cheng I.r.Jones School of Physical Sciences The Flinders University of South AustraliaBedford ParkS.A.5042

An experiment in which a rotating magnetic field was used to drive current in a cylindrical device was *** driven current was of sufficient size to reverse the applied axial *** an equilibrium could equally well be termed a field reversed configuration(FrC).In this experiment the FrC lifetime appeared to be limited by the duration of the rotating field pulse(40ms)with no evidence of gross instabilities.

关键词： field rotating reversed

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