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A Lagrangian-based flame index for the transported probability density function method

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Theoretical & Applied Mechanics Letters 2022年第1期12卷 30-34页

作者： Zhen Lu Hua Zhou Zhuyin Ren Yue Yang Hong g.Im State Key Laboratory for Turbulent and Complex Systems College of EngineeringPeking UniversityBeijing 100871China BIC-ESAT Peking UniversityBeijing 100871China Clean Combustion Research Center King Abdullah University of Science and TechnologyThuwal 23955-6900Saudi Arabia Institute of Aero Engine Tsinghua UniversityBeijing 100084China HEDPS-CAPT Peking UniversityBeijing 100871China

We propose a new flame index for the transported probability density function(PDF) method. The flame index uses mixing flux projections of Lagrangian particles on mixture fraction and progress variable directions as the metrics to identify the combustion mode, with the Burke-Schumann solution as a reference. A priori validation of the flame index is conducted with a series of constructed turbulent partially premixed reactors. It indicates that the proposed flame index is able to identify the combustion mode based on the subgrid mixing information. The flame index is then applied the large eddy simulation/PDF datasets of turbulent partially premixed jet flames. Results show that the flame index separate different combustion modes and extinction correctly. The proposed flame index provides a promising tool to analyze and model the partially premixed flames adaptively.

关键词： Flame index Transported probability density function Partially premixed combustion

Impact of Intensive greenhouse Production System on Soil Quality

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Pedosphere 2015年第2期25卷 282-293页

作者： Tarek g.AMMARI Ragheb TAHHAN Nizar AL SULEBI Alaedeen TAHBOUB Rakad A.TA'ANY Samih ABUBAKER Departemnet of Water Resources and Environmental Management Faculty of Agricultural TechnologyAl-Balqa' Applied University Departement of Natural Resources and Environment Faculty of AgricultureJordan University of Science and Technology Department of Plant Production and Protection Faculty of Agricultural TechnologyAl-Balqa' Applied University

Composite top- and subsoil samples were collected from the greenhouses in the Al-Balawneh area,Jordan,where intensive greenhouse production system(IgPS) has been practiced since 1998,to study the impact of IgPS on soil quality as measured by the chemical and biological properties to develop a sustainable production *** study showed that IgPS led to higher electrical conductivity in top- and subsoils compared to an uncultivated soil(control).Quality and amount of irrigation water,lack of efficient drainage,and quantity and types of applied fertilizers were major factors resulting in salt *** resulted in lower total N(TN) and NO_3-N in the soil compared to the *** lower TN was due to crop uptake,microbial immobilization,volatilization,and irregular application of composted animal manure or poultry *** contrast,higher residual Olsen-P content was detected in both soil layers of greenhouses than in the *** P was classified as very high in the topsoil layers and sufficient to high in the subsoil *** available K in the soils of greenhouses was relatively lower than that in the control and it was,however,classified as high to very high.A large increase of Cl and a considerable decrease in the bacterial count were observed in both soil layers of IgPS compared to the control *** sustainable soil management practices need to be adopted by farmers to achieve a sustainable and profitable *** can be accomplished through education,targeted towards the farming community in the central Jordan Valley.

关键词： central Jordan Valley salt buildup soil health soil management unsustainable agriculture practices

New Exact Structures for the Nonlinear Lattice Equation by the Auxiliary Fractional Shape

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Journal of Partial Differential Equations 2016年第3期29卷 195-203页

作者： DJOUDI W. DEBOWSKY g. ZERARKA A. Labo of Applied Mathematics University Med Khider BP14507000 BiskraAlgeria

In this paper, the auxiliary rational shape is successfully applied for obtain- ing new exact travelling solutions of the nonlinear lattice equation. These solutions include rational solutions, with periodic and doubl... 详细信息

关键词： Nonlinear lattice travelling wave solutions.

A NEW TREATMENT FOR INTERFACE OF METAL AND DIELECTRIC IN FDTD METHOD

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维普期刊数据库

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Acta Metallurgica Sinica(English Letters) 2001年第1期14卷 42-46页

作者： Z.D. Qian, B. W. Li, E.g. Wang, g.L. Jia and J.C. He (Key laboratory of National Education Ministry for Electromagnetic Processing of Materials, Northeastern University, Shenyang 110006, China) Northeastern Univ. Shenyang 110006 China

A new treatment for interface of metal and dielectric in finite-difference time domain (FDTD) method was presented, further how and why this treatment should be as it is was explained. The FDTD method was developed to compute the low-frequency electromagnetic fields in the metal instead of the traditional high-frequency ones as it was originally proposed. The computational results agreed well with the experimental ones.

关键词： method treatment for interface electromagnetic field numerical simulation

Understanding and Treating Arthrogenic Muscle Inhibition

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中国运动医学杂志 2009年第3期28卷 322-326页

作者： Brian g. Pietrosimone M. Ed, ATC Doctoral Candidate in Sports Medicine at the University of Virginia

Quadriceps muscle weakness and dysfunction are common consequences of knee joint injury or effusion.[1-7] Deficits in quadriceps muscle function have been reported following various knee joint pathologies including

关键词：肌肉拉伤运动损伤医学治疗

About Nonlinear Mechanism of Energy Transformation at Ion Implantation

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Journal of Materials Science & Technology 1999年第6期15卷 581-582页

作者： S.g.Psakhie, K.P.Zolnikov, R.I.Kadyrov, g.E.Rudenskii, S.A.Vassiliev and Yu.P.Shatheev (Institute of Strength Physics and Materials Science, Russian Academy of Sciences, Siberian Branch, Tomsk, Russia) Institute of Strength Physics and Materials Science Russian Academy of Sciences Siberian Branch Tomsk Russian Federation

The peculiarities of energy dissipation transferred by solitary waves on defects such as freesurface, grain boundary, region with high concentration of vacancies are studied. One of theways of description of the long ... 详细信息

关键词： About Nonlinear Mechanism of Energy Transformation at Ion Implantation

Light-induced halide segregation in perovskites with wrinkled morphology

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Journal of Energy Chemistry 2022年第8期31卷 83-88,I0003页

作者： Eduardo g.Machado Paulo E.Marchezi Eralci M.Therézio JoséCarlos germino Rodrigo Szostak Caique Sde Brito Yara g.gobato Ernesto C.Pereira Michael F.Toney Raphael Nagao Ana Flávia Nogueira Institute of Chemistry University of CampinasCampinas 13083-970 SPBrazil Center for Innovation on New Energies University of CampinasCampinas 13083-970SPBrazil Institute of Physics Federal University of Mato GrossoCuiaba 78060-900MTBrazil Department of Physics Federal University of Sao CarlosSao Carlos 13565-905SPBrazil Department of Physics and i3N–Institute for Nanostructures Nanomodulation and NanofabricationUniversity of AveiroAveiro 3810-193Portugal Department of Chemistry Federal University of Sao CarlosSao Carlos 13565-905SPBrazil Renewable and Sustainable Energy Institute(RASEI) University of Colorado BoulderBoulder CO 80309ColoradoUnited States of America

In this work, it is proposed that, upon light incidence, a halide segregation event takes place, where iodine anions move towards the hills of a wrinkled mixed-halide perovskite.

关键词： halide perovskite iodine

Inspection of aluminum alloys by a multi-frequency eddy current method

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Defence Technology（防务技术） 2015年第2期11卷 99-103页

作者： A.V.EgOROV V.V.POLYAKOV D.S.SALITA E.A.KOLUBAEV S.g.PSAKHIE A.g.CHERNYAVSKII I.V.VOROBEI Altai State University Institute of Strength Physics and Materials Science SB RAS National Research Tomsk Polytechnic University S.P.Korolev Rocket and Space Corporation "Energia"

The paper proposes an experimental method of material inspection,which is based on digital processing of multi-frequency eddy current measurement *** influences of various factors(conductivity,the gap between the sample surface and the sensor,the thickness of the sample) on the obtained hodographs are examined by taking the aluminum alloys for example,and the possibility of separation of various factors is *** results obtained are indicative of how much promise the proposed method offers for the inspection and testing of products made of aluminum alloys.

关键词：铝合金涡流法检查多频数字处理测量数据电导率传感器

The distibution of cofilin and DNase I in vivo

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Cell Research 2002年第Z1期 207-214页

作者： DEEPAK CHHABRA ,sHISAN BAO ,CRISTOBAL g DOS REMEDIOS

Actin is the principal component of the cytoskeleton, a structure that can be disassembled and reassembled in a matter of seconds in vivo. The state of assembly of actin in vivo is primarily regulated by one or more actin binding proteins (ABPs). Typically, the actions of ABPs have been studied one by one, however, we propose that multiple ABPs, acting cooperatively, may be involved in the control of actin filament length. Cofilin and DNase I are two ABPs that have previously been demonstrated to form a ternary complex with actin in vitro. This is the first report to demonstrate their co-localisation in vivo, and differences in their distributions. Our observations strongly suggest a physiological role for higher order complexes of actin in regulation of cytoskeletal assembly during processes such as cell division.

关键词： actin cofilin DNase I actin-binding protein ternary complex.