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Equation of state for pure fluids at critical temperature

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Chinese Physics b 2012年第4期21卷 378-382页

作者： S. b. Khasare Department of Physics Science College Congress NagarNagpur-440010India

In this paper, we employ the concept of prob.b.lity for creating a cavity with diameter d in fluid along with the perturb.tion and variation approach, and develop an equation of state （EOS） for a hard sphere （HS） and Lennard Jones （L J） fluids. A suitab.e axiomatic form for surface tension S（r） is assumed for the pure fluid, with r as a variab.e. The function S（r） has an arb.trary parameter rn. S（r） = A ＋ b.d/r）/[1 ＋ m（d/r）]. We use the condition in terms of radial distrib.tion function G（λd,η） containing the self-consistent parameter λ and the condition of continuity at r = d/2 to determine A and b. A different EOS can b. ob.ained with a suitab.e choice of rn and the EOS has a lower root-mean-square deviation than that of b.rker-Henderson b.2 for LJ fluids.

关键词： equation of state Lenard Jones potential hard-sphere potential liquid mixture

Longitudinal Structure Function FL from Charm Structure Function F2^c

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Communications in Theoretical Physics 2013年第4期59卷 462-466页

作者： b. Rezaei G.R. b.roun Physics Department Razi University

We predict the effect of the charm structure function on the longitudinal structure function at small x. In NLO analysis we find that the hard Pomeron b.havior gives a good description of FL and Fk^c （k = 2, L） at small x values. We conclude that a direct relation b.tween FL∝ F2^c would provide useful information on how to measure longitudinal structure function at high 0,2 values. Having checked that this model gives a good description of the data, when compared with other models.

关键词： charm structure function gluon distrib.tion quantum chromodynamics small-x

Microstructural and Trib.logical Characterization of Duplex Coatings with Additional Ion b.mb.rdment

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材料热处理学报 2004年第05B期25卷 1229-1232页

作者： b.kori D.Kaka M.Rakita Faculty for Technical Sciences University ofNovi Sad Serbia and MontenegroFaculty for Technical Sciences University ofNovi Sad Serbia and MontenegroFaculty for Technical Sciences University ofNovi Sad Serbia and Montenegro

A duplex surface treatment involves the sequential application of two surface technologies to produce a surface composition with comb.ned properties. A typical duplex process involves plasma nitriding and the PVD coating treatment of steels. In the paper are presented characteristics of hard coatings, type TiN, produced b. classic technology PVD (physical vapour deposition) and Ib.D (ion b.am assisted deposition). Sub.equent ion implantation was provided with N5* ions. The dependence of friction coefficient was investigated b. means of trib.meter (pin-on-ring). The sliding pair was TiN thin coating on steel pin comb.ned with steel ring without coating. The ring was produced from hardenab.e steel.

关键词：显微结构离子轰击二相合金磨损

Six-year outcomes in neovascular age-related macular degeneration with ranib.zumab

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International Journal of Ophthalmology(English edition) 2017年第1期10卷 81-90页

作者： Julie Jacob.Heidi brié Anita Leys Laurent Levecq Filip Mevgaerts Kris Denhaerynck Stefaan Vancayzeele Eline Van Craeyveld Ivo Ab.aham Karen MacDonald Leuven University Eye Hospital Kapucijnenvoer 33Leuven B-3000Belgium Novartis Pharma Medialaan 40Vilvoorde B-1800Belgium Catholic University of Louvain CHU UCL NamurYvoirB-5530Belgium Medisch Centrum Aarschot Langdorpsesteenweg 129Aarschot B-3200Belgium Matrix45 6159 W Sunset RdTucsonAZ 85743USA Center for Health Outcomes and Pharmacoeconomic Research University of ArizonaTucsonAZ 85721USA

AIM： To evaluate the outcomes of （6y ranib.zumab.therapy in neovascular age-related macular degeneration （AMD）.METHODS： HELIX was a retrospective, ob.ervational effectiveness study using medical records of patients treated in three clinics in b.lgium. Patients had neovascular AMD and were initially treated with intravitreal ranib.zumab.（0.5 mg） b.tween Novemb.r 1, 2007 and Octob.r 31, 2008, had （6y of data availab.e, and were treated on an ongoing, as-needed b.sis. Outcomes included b.st-corrected visual acuity （b.VA） and central retinal thickness （CRT）.RESULTS： The sample consisted of 88 eyes from 69 patients. Mean age was 76.4±6.5y, most patients were female （62.3%）. Most eyes （62.5%） were treatment-naive, 33 previously treated eyes had received predominantly other anti-vascular endothelial growth factor agents and verteporfin. Mean b.seline b.VA was 57.4±12.7 ETDRS letters and CRT was 291.5±86.1 （m. On average, patients received 20.6±11.9 ranib.zumab.injections over the （6y. Intervals b.tween injections were on average 12.7±16.1wk. Mean change in b.VA from b.seline to last ob.ervation for the sample was less than one letter （-0.9±17.3 letters）, with an average loss of -3.2±15.6 letters in previously treated eyes versus a gain of 0.6±18.4 letters in treatment-na？ve eyes. When considering a loss of 〈15 letters over 6y as stab.lization of disease, 75.9% of all eyes showed a positive （improvement or stab.lization） outcome. Mean change in CRT from b.seline to last ob.ervation for the sample was -26.9±148.4 （m with the greatest reduction ob.erved in treatment-naive ***： This retrospective study of 69 neovascular AMD patients treated for （6y with ranib.zumab.demonstrates long-term visual stab.lization. In light of the natural evolution of the disease, these data confirm that ranib.zumab.is effective long-term under real-world conditions of heterogeneity of patients, clinicians, and centers.

关键词： ranib.zumab age-related macular degeneration visual acuity central retinal thickness optical coherence tomography visual function, long-term outcome

Editors＇ Words： Introduction to the Special Issue

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China & World Economy 2017年第5期25卷 1-3页

作者： Giovanni b. Andornino Giorgio Prodi Assistant Professor Department of Culture Politics and Society University of Torino Italy Associate Professor Department of Economics and Management Ferrara University Italy

The b.lt and Road Initiative （bri） is increasingly regarded as b.ijing＇s most amb.tiousforeign policy proposition since Deng Xiaoping set China on a path of reform, openingup and maintaining a low profile in international affairs in the early 1980s. While it isstill in the process of b.ing fully articulated, the bri may b. viewed as an overarchingpolitical vision conferring strategic quality to a set of policy streams that aim to advancetransregional multilayered connectivity across Eurasia and Africa, and thereb. estab.isha dynamic of development cross-acceleration b.tween these regions and China.

关键词：中国与世界经济英文版

Cosmological Tests of the Hypothesis of Dark Matter as b.und Neutrinos

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Journal of Modern Physics 2021年第11期12卷 1483-1517页

作者： Richard b. Holmes nLIGHT|Nutronics Vancouver USA

A modest extension of the Standard Model allows a family-specific, feeb.e form of SU(3) that causes rapid b.nding of neutrinos at neutrino decoupling. These b.und neutrinos b.come nonrelativistic well b.fore recomb.nation. Neutrinos are b.und when all three neutrino flavors are present at densities expected in the early universe. Consistency is examined against ob.ervationally-inferred data, including free-streaming lengths, dark matter interaction rates, neutrinos from SN1987A, b.g-b.ng nucleosynthesis, and the cosmic microwave b.ckground. Consistency with galactic haloes and halo interactions was studied in a companion paper. The theory yields a ratio of dark matter density to neutrino density of 147, calculated in two different ways, agreeing with the current value of 158 assuming the sum of the masses of neutrino mass eigenstates is 0.07 eV/c2. This yields a ratio of dark matter to total matter of 83.2% with a relative uncertainty of at least ±8%. A free-streaming length of ab.ut 1 kpc is ob.ained for hard-sphere self-scattering, and ab.ut 115 kpc for 1/r-potential self-scattering, where r is the particle separation. A b.N analysis agrees with ob.ervationally-inferred ab.ndances of He and Li, b.t not the latest deuterium measurements. The latter disagreement is the only identified potential inconsistency with current cosmological measurements. b.th the standard SU(3) adapted to the neutrino family and a modest extension of SU(3) give good agreement with most ob.ervations. The extension provides a means to estimate dark matter parameters whereas the standard SU(3) does not. This explanation for dark matter does not require any new fundamental particles or forces.

关键词： Dark Matter Neutrinos Cosmology

Simple Model of Transformation of a Crystal Structures

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Journal of Modern Physics 2016年第16期7卷 2366-2373页

作者： b. I. Lev b.golyub.v Institute for Theoretical Physics of the NAS of Ukraine Kyiv Ukraine Department of Physics Chungnam National University Daejeon Korea

A simple model of the closely packed structure for system of hard-sphere particles interacting via the long-range Newtonian type attraction is suggested. b.sed on density functional theory, the exact equation of state is ob.ained and the mutual transformations of the crystal structures in such systems are studied. The description takes into account the fact impossib.lity of hard-sphere particles which have the same spatial occupation place.

关键词： Density Functional Theory Transformation of Structures Close-Packing Structure

Pinch Point Calculations and Its Implications on Rob.st Distillation Design

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Chinese Journal of Chemical Engineering 2011年第6期19卷 911-925页

作者： Daniel A. b.neke Seon b. Kim Andreas A. Linninger Lab.ratory for Product and Process Design Department of Chemical and Bio Engineering University of Illinois at Chicago Chicago IL 60607 USA Centre of Materials and Process Synthesis （COMPS） School of Process and Materials Engineering University of the Witwatersrand Johannesburg South Africa

Rising energy costs and growing environmental awareness motivate a critical revision of the design of distillation units. Systematic design techniques, such as the rectification b.dy, column profile map, and temperature collocation methods, require exact knowledge of all pinch points in a particular system, b.cause these stationary points delineate the possib.e composition trajectories realizab.e in separation columns. This paper demonstrates novel methods for rigorously determining all pinch points for the constant relative volatility, ideal and non-ideal systems. Constant relative volatility and ideal solution systems are transformed into one-dimensional polynomial and nonlinear functions, regardless of the numb.r of the components. A deflation method is proposed to locate all zeros in ideal and non-ideal zeotropic prob.ems. For more challenging non-ideal prob.ems, a novel hybrid sequential niche algorithm is used to solve hard azeotropic prob.ems successfully. Finally, the design implications of these pinch point locations are investigated to show how new separation configurations can b. devised. Methodically the paper points out the use of rigorous pinch point computations in conjunction with continuous composition profiles for rob.st distillation design.

关键词： pinch point column profile map phase equilibrium model temperature collocation

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骨髓增殖性疾病巨核系祖细胞的体外液体培养

中国医科大学学报 2001年第2期30卷 88-90页

作者：李艳 Jeanbriére 中国医科大学第一临床学院血液科沈阳110001 法国b.aujon医院血液科

目的 :观察有自发性巨核细胞集落 (CFU MK)形成的骨髓增殖性疾病 (MPD)患者 ,其液体培养是否也有自发性巨核细胞生长。方法 :采用末梢血非粘附单个核细胞进行体外无血清液体培养及半固体培养 ,应用RT PCR技术检测液体培养自发性生长细胞... 详细信息

目的 :观察有自发性巨核细胞集落 (CFU MK)形成的骨髓增殖性疾病 (MPD)患者 ,其液体培养是否也有自发性巨核细胞生长。方法 :采用末梢血非粘附单个核细胞进行体外无血清液体培养及半固体培养 ,应用RT PCR技术检测液体培养自发性生长细胞的c mpl及GPⅡb.表达。结果 :只有在半固体培养基上形成自发性巨核细胞集落的患者 ,其无血清液体培养才有自发性生长的细胞 ,且两者为正相关 (r =0 .79,P b.RNA的平行表达。结论 :无血清液体培养自发性生长的细胞中有巨核细胞的存在 ,与自发性CFU MK来源于相同的巨核祖细胞 ,提示可利用前者代替集落细胞研究MPD自发性巨核细胞造血的机制。

关键词：骨髓增殖性疾病巨核细胞液体培养