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Applied Mathematics and Mechanics(English Edition) 2010年第4期31卷 481-492页

作者： S.GUPTA A.CHATTOPAdHYAY d.K.MAJHI department of Applied Mathematics Indian School of Mines University

The paper studies the propagation of torsional surface waves in an initially stressed anisotropic poro-elastic layer over a semi-infinite heterogeneous half space with linearly varying rigidity and density due to irregularity at the interface. The irregularity is taken in the half space in the form of a rectangle. It is observed that torsional surface waves propagate in this assumed medium. In the absence of the irregularity, the velocity equation of the torsional surface wave is also obtained. For a layer over a homogeneous half space, the velocity of torsional surface waves coincides with that of the Love waves.

关键词： irregularity torsional surface waves anisotropic initial stress

Construction of high-pressure adsorption isotherm:A tool for predicting coalbed methane recovery from Jharia coalfield,India

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International Journal of Mining Science and Technology 2019年第5期29卷 765-769页

作者： Mohammad Asif d.C.Panigrahi Paul Naveen Keka Ojha department of Mining Engineering Indian Institute of Technology(ISM)Dhanbad 826004India department of Petroleum Engineering Indian Institute of Technology(ISM)Dhanbad 826004India

Adsorption isotherm relates the gas storage capacity as a function of pressure at constant *** this paper,adsorption isotherm of two dry borehole samples was constructed in the laboratory using the manometric *** was measured for two gases,i.e.,CH4 and CO2 to pressure up to 8.4 *** the construction of sorption isotherm,coal was characterized by proximate,ultimate and petrographic *** gas content of these two samples was found 2.29 m3/t and 2.75 m3/*** images were obtained for the pore size distribution of coal using pore image *** of coalbed methane recovery from CH4 adsorption isotherm showed that these coalbeds are under ***2 isotherm was constructed to estimate enhanced coalbed methane(ECBM)*** wise CO2/CH4 sorption ratio was found 2.09 times to 2.75 times *** paper presents the interpretation of isotherm data to find the recovery factor of methane production from Jharia coalfield.

关键词： Coalbed methane Adsorption isotherm Pore image analysis Gas content Jharia coalfield

Shear Strength of Unbound Crop By-Products Using the direct Shear Box Apparatus

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Journal of renewable Materials 2019年第9期7卷 855-863页

作者： Morgan Chabannes Frédéric Becquart Nor-Edine Abriak IMT Lille douai LGCgE-GCEF-59508 DouaiFrance Lille University F-59000 LilleFrance

The return to old building methods by mixing crop by-products with mineral binders is arousing great interest in Europe since about 25 *** use of these bio-aggregates based materials for the design of building envelopes is a valuable opportunity to deal with increasingly demanding thermal *** addition,the regulatory framework is moving towards reducing the overall car-bon footprint of new *** traditional and historic buildings are based on timber framing with earth-straw as infill material for *** concrete is a bio-based material that can be manually tamped in timber stud walls or more recently in the form of precast *** to their low compressive strength,bio-based concretes using a large volume fraction of plant-derived aggregates are only considered as thermal and sound insulation *** structural design practice of wood frame walls does not assume any mechanical contribution of hemp concrete whereas it may contribute to the racking strength of the *** this context,more research is needed regarding the shear behavior of crop by-products and bio-based *** this case,the objective of the study was to perform direct shear tests under three levels of normal pressure on hemp shiv and rice husk as unbound crop *** results showed that the friction angle of the granular skeleton based on rice husk for a given relative displacement was significantly lower than that measured on hemp *** is in accordance with what had been observed on bio-based concretes cast by mixing aggregates with lime and shear strength parameters measured by means of triaxial compression.

关键词： Plant-derived aggregates direct shear test racking strength friction angle bio-based concretes

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高校科技活动机构的现状与前景探析业

中国高等教育 2001年第20期22卷 27-29页

作者：高校r&d资源清查课题组高校r&d资源清查研究课题组

高等学校最大的资源是智力资源,最大的财富是知识财富.高校科技活动机构具有强大的科研能力和人才优势,充分发挥高校科研机构的优势,更能有效地管理和开发高校的智力资源,把大学创造科研成果转化为生产力,对于提升学校的办学水平和在国... 详细信息

高等学校最大的资源是智力资源,最大的财富是知识财富.高校科技活动机构具有强大的科研能力和人才优势,充分发挥高校科研机构的优势,更能有效地管理和开发高校的智力资源,把大学创造科研成果转化为生产力,对于提升学校的办学水平和在国家创新体系中的地位具有重要的意义.高校科技活动机构也具备向国际一流水平发起挑战的潜能,是我国未来科技创新的重要支柱,需要得到大力扶持与发展.

关键词：高等学校科技活动机构机构规模机构建设人才培养科技创新

Natural Killer Cells:Biology and Clinical Use in Cancer Therapy

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Cellular & Molecular Immunology 2004年第1期1卷 12-21页

作者： William H.d.Hallett William J.Murphy department of Microbiology and Immunology University of Nevada School of Medicine.University of Nevada.reno.reno.NV.USA.

Natural killer (NK) cells have the ability to mediate both bone marrow rejection and promote engraftment,as well as the ability to elicit potent anti-tumor *** the clinical results for these processes are still *** understanding of NK cell biology,from activating and inhibitory receptor functions to the role of NK cells in allogeneic transplantation,needs to be appreciated in order to draw out the clinical potential of NK *** of bone marrow cell (BMC) rejection are known to be dependant on inhibitory receptors specific for major histocompatibility complex (MHC) molecules and on activating receptors that have many potential *** modulation of activating and inhibitory receptors may hold the key to clinical success involving NK ***-clinical studies in mice have shown that different combinations of activating and inhibitory receptors on NK cells can reduce graft-versus-host disease (GVHd),promote engraftment,and provide superior graft-versus-tumor (GVT) *** clinical data have shown that the use of KIr-ligand incompatibility produces tremendous graft-versus-leukemia effect in patients with acute myeloid leukemia at high risk of *** review will attempt to be a synthesis of current knowledge concerning NK cells,their involvement in BMT,and their use as an immunotherapy for cancer and other hematologic *** & Molecular Immunology.2004;1(1):12-21.

关键词： NK cell BMT GVHd GVT

Continued Fraction Cartesian to Geodetic Coordinate Transformation

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Computer Modeling in Engineering & Sciences 2016年第3期111卷 257-268页

作者： J.d.Turner A.Alnaqeb A.Bani Younes Khalifa University Abu DhabiUAE

A singularity-free perturbation solution is presented for inverting the Cartesian to Geodetic *** approaches for inverting the transformation use the natural ellipsoidal coordinates,this work explores the use of the satellite ground-track vector as the differential correction *** geodetic latitude is recovered by well-known elementary means.A high-accuracy highperformance 3d vector-valued continued fraction iteration is *** convergence is achieved because the starting guess for the ground-track vector provides a maximum error of 30 m for the satellite height above the Earth’s surface,throughout the LEO-GEO range of *** a result,a single iteration of the continued fraction iteration yields a maximum error for the satellite height of 10??11 *** maximum error for the geodetic anomaly of 10??9 *** coordinate transformation is completed by non-iteratively recovering the satellite height and the geodetic *** Taylor expansions are introduced and no Jacobian sensitivity calculations are *** all practical applications the new algorithm provides a closed-form *** accuracy and algorithmic performance of the proposed approach is compared with other state of the art algorithms.

关键词： Geodetic transformation continued fraction singularity-free

Thermodynamic database development—modeling and phase diagram calculations in oxide systems

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rare Metals 2006年第5期25卷 473-480页

作者： Arthur d.Pelton Center for research in Computational Thermochemistry Ecole PolytechniqueP.O.Box 6079Station "Downtown"MontrealQuebec H3C 3A7Canada

The databases of the FactSage thermodynamic computer system have been under development for 30 years. These databases contain critically evaluated and opthnized data for thousands of compounds and hundreds of multicomponent solutions of solid and liquid metals, oxides, salts, sulfides, etc. The databases are automatically accessed by user-friendly software that calculates complex multiphase equilibria in large multicomponent systems for a wide variety of possible input/output constraints. The databases for solutions have been developed by critical evaluation/optimization of all available phase equilibrium and thermodynamic data. The databases contain parameters of models specifically developed for different types of solutions involving sublattices, ordering, etc. Through the optimization process, model parameters are found which reproduce all thermodynamic and phase equilibrium data within experimental error limits and permit extrapolation into regions of tempea＇ature and composition where data are unavailable. The present article focuses on the databases for solid and liquid oxide phases involving 25 elements. A short review of the available databases is presented along with the models used for the molten slag and the solid solutions such as spinel, pyroxene, olivine, monoxide, corundum, etc. The critical evaluation/optimization procedure is outlined using examples from the Al203-SiO2-CaO-FeO-Fe2O3 system. Sample calculations are presented in which the oxide databases are used in conjunction with the FactSage databases for metallic and other phases. In particular, the use of the FactSage module for the calculation of multicomponent phase diagrams is illustrated.

关键词： thermodynamics oxides databases phase diagrams

The human application of gene therapy to re-program T-cell specificity using chimeric antigen receptors

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Chinese Journal of Cancer 2014年第9期33卷 421-433页

作者： Alan d Guerrero Judy S Moyes Laurence JN Cooper division of Pediatrics The University of Texas MD Anderson Cancer Center The University of Texas Graduate School of Biomedical Sciences

The adoptive transfer of T cells is a promising approach to treat cancers. Primary human T cells can be modified using viral and non-viral vectors to promote the specific targeting of cancer cells via the introduction of exogenous T-cell receptors(TCrs) or chimeric antigen receptors(CArs). This gene transfer displays the potential to increase the specificity and potency of the anticancer response while decreasing the systemic adverse effects that arise from conventional treatments that target both cancerous and healthy cells. This review highlights the generation of clinical-grade T cells expressing CArs for immunotherapy, the use of these cells to target B-cell malignancies and, particularly, the first clinical trials deploying the Sleeping Beauty gene transfer system, which engineers T cells to target Cd19+ leukemia and non-Hodgkin's lymphoma.

关键词： T细胞受体基因治疗异性重新编程抗原嵌合基因转移系统非病毒载体

On the radiogenic heat production of metamorphic,igneous,and sedimentary rocks

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Geoscience Frontiers 2018年第6期9卷 1777-1794页

作者： d.Hasterok M.Gard J.Webb department of Earth Sciences University of AdelaideNorth TerraceSA5005Australia Centre for Tectonics research and Exploration(TraX) University of AdelaideNorth TerraceSA5005Australia ramelius resources Ltd. East PerthWA 6005Australia

Sedimentary rocks cover-73% of the Earth's surface and metamorphic rocks account for approximately91% of the crust by volume. Understanding the average behavior and variability of heat production for these rock types are vitally important for developing accurate models of lithospheric temperature. We analyze the heat production of ～204,000 whole rock geochemical data to quantify how heat production of these rocks varies with respect to chemistry and their evolution during metamorphism. The heat production of metaigneous and metasedimentary rocks are similar to their respective protoliths. Igneous and metaigneous samples increase in heat production with increasing SiO_2 and K_2 O, but decrease with increasing FeO, MgO and CaO. Sedimentary and metasedimentary rocks increase in heat production with increasing Al_2 O_3, FeO, TiO_2, and K_2 O but decrease with increasing CaO. For both igneous and sedimentary rocks, the heat production variations are largely correlated with processes that affect K_2 O concentration and covary with other major oxides as a consequence. Among sedimentary rocks,aluminous shales are the highest heat producing(2.9 μW^(-3)) whereas more common iron shales are lower heat producing(1.7 μW m^(-3)). Pure quartzites and carbonates are the lowest heat producing sedimentary rocks. Globally, there is little definitive evidence for a decrease in heat production with increasing metamorphic grade. However, there remains the need for high resolution studies of heat production variations within individual protoliths that vary in metamorphic grade. These results improve estimates of heat production and natural variability of rocks that will allow for more accurate temperature models of the lithosphere.

关键词： Heat generation density Metamorphic rocks Sedimentary rocks Igneous rocks Continental lithosphere