国外固体润滑文献索引

9010025(Z0025) The Influence of Surface Chemistry on MoS_2 Transfer Film Formation/表面化学对形成MoS_2转移膜的影响(英文),Fleischauer, P.D., 《ASLE Trans.》,30 (April,1987)160～161. 9010026(Z0026) Modelling of Wear in a Solid Lubricated Ball Bearing/固体润滑滚珠轴承的磨损模型(英文),Cupta, P.K.,《ASlE Trans.》, 30(Jan.,1987)55～62. 9010027(Z0027)     

国外固体润滑文献索引(7)

9111047(2014E)Influence of the Environgiept on the Dryand Lubricated ContactofRoVgb Friction and Wear of Graphite Car- Surface /粗糙表面的干接触和润滑接触(英bon/环境对碳石墨摩擦磨损的影响(英文), 文),TriPP,J,《Tribol.Fric.Lubr.Zaidi,H,《1.Appl.Surf.Set》,1989, Wear 50 years》,1987,Vol.l,71—79.yol.40,No.1-2,ID3—114.9111048(20146)9111053(20151) Sputtered SilVer Films to Improve Sliding Performance of Ceramics for Chromium Carbide Basedsolid Lub。i-Ad。耳nced Heat Engine/现代热力…     

国外固体润滑文献索引

9010001 (Z0001) Preparation and Properties of Different Types of Sputtered MoS_2 Films/不同类型溅射MoS_2膜的制备和性能,Buck, V., 《Wear》, 1987, Vol.114, No.3, 263～274. 9010002 (Z0002) Friction and Wear of Polymers/聚合物的磨擦与磨损, Holmberg, K., 《Wear》 1987, Vol.115, No.2, 95～105. 9010003 (Z0003) Solid Lubricant Coatings Using Electromagnetic Raingun Aeceleration/利用电磁加速枪喷涂的固体润滑涂层,Lund,C.J.,《Wear》, 1987, Vol.119, No.     

国外固体润滑文献索引(5)

9111001(20099)91110Q6(20104) Tribological ltnprove。ent of Ag New Bearing Materials(PTFE,Glass Films by Ion Beam Enhanced Depo-Fiber,and Lead)for High Speed sition /用离子束增强沉积法改进Ag膜四摩 Dry Operation/高速于操作下的新型轴 擦学性能(英文)、Hirano,M,《J.Tri 承材料(PTFE,玻纤和铅)(英文), bol.》,(1988,Jan.)110:64。68.Cooper,G.A, Wear》,1988,APr.9ill002(20f00)I,y。1.123,N。二,33—35. Production of Thermoplastic Rein-9Ill007(20105) forcedParts ofjournal Bearings Stiffandstron…     

评"Fundamentals of Vibrations"(Meirovitch 著)

Leonard Meirovitch教授的《振动基础》(Fundamen- tals of Vibrations,McGraw-Hill,2001)近年来被多所国外高校采纳为研究生的教材．Meirovitch教授撰写过多部不同层次的振动教材,除将评介的书外,还包括《Analytical Methods in Vibrations》(Macmillan,1967),《Elements of Vibration Analysis》(McGraw-Hill,1970,1985), 《Principles and Techniques of Vibrations》(Prentice- Hall,1997)．他的教材在中国也有较大影响,《Elements of Vibration Analysis》的两版国内都发行过影印本,上海交通大学的吴镇教授等曾将第1版译为汉语(《振动分析基础》,上海交通大学铅印,1982)．《振动基础》也可以认     

ON THE FREE ENERGY AND VARIATIONAL THEOREN OF ELASTIC PROBLEM IN THERMAL SHOCK

In some investigations on variational principle for cou-pled thermoelastic problems,the free energy φ(e_(ij),θ) ,Wherethe state variables are elastic strain e_(ij) and temperatureincrement θ,is expressed asφ(e_(ij),θ)=λ/2e_(kk)e(ij) μe_(ki)e_(kj)-γe_(kk)θ-c/2ρθ~2/T_o (0.1)This expression is employed only under the condition of|θ|≤T_o (absolute temperature of reference)But the value of temperature increment is great, evengreater than T_o in thermal shock. And the material pro-perties (λ,μ,γ,c,etc.) will not remain constant,theyvary with θ.The expression of free energy for this con-dition is derived in this paper. Equation (0.1) is itsspecial case.Euler’s equations Will be nonlinear While this expres-sion of free energy has been introduced into variationaltheorem. In order to linearise, the time interval of ther-mal shock is divided into a number of time elements △t_k(△t_k=t_k-t_(k-1),k=1,2,…,n),Which are so small that the tempera-ture increment θ_k within it is very small,too.Thus,t     

国外固体润滑文献索引(8)

9】11100(20198)91]1106(20204) Sintered Bearing Having Composite PLenol Resin Composition for Sliding Phase Manufactured-Usi;ig Solid Lu-Member/滑动构件用的酚醛树脂合成物 bricants e.g.MoS:and WS:/用固体润i(日文),Oness Kogyo KK,《J 90038636》 剂MOS:和WS:制造的有复合相的烧结轴承(日本专利),ig90. (日文),Komatsu KK,《J 02200705》(日 9111107(20205) 本专利),1990,引Mhg M吠etZtl叫比BtltnCCdnCNC9111101(20199)Friction-Comptising Varlgtlons Of Ceramic Bearing Manufacture-from Lead,Graphi…     

A brief introduction ofChinese Journal of Computational Mechanics

《Chinese Journal of Computational Mechanics》 (Previously called《Journal of Computational StructuralMechanics and Applications》) is an academic journal jointly sponsored by CATAM(Chinese Association forTheoretical and Applied Mechanics) and Dalian U niversity of Technology,administrated by the EducationMinistry of China. Its publication was approved by the State Commission of Science and Technology ofChina. The titles,abstracts,captions of tables and figures as well as reference…     

PM_(2.5) and PM_(10-2.5) chemical composition and source apportionment near a Hong Kong roadway

Twenty-four-hour PM_(2.5) and PM_(10) samples were collected simultaneously at a highly trafficked roadside site in Hong Kong every sixth day from October 2004 to September 2005.The mass concentrations of PM_(2.5),PM_(10-2.5)(defined as PM_(10)- PM_(2.5)),organic carbon(OC),elemental carbon(EC),water-soluble ions,and up to 25 elements were determined.Investigation of the chemical compositions and potential sources revealed distinct differences between PM_(2.5) and PM_(10-2.5).The annual average mass concentrations were 55.5±25.5 and 25.9±15.7 ug/m~3 for PM_(2.5) and PM_(10-2.5),respectively.EC,OM(OM =OC×1.4),and ammonium sulfate comprised over ~82% of PM_(2.5),accounting for~29%,~27%,and ~25%,respectively,of the PM_(2.5) mass.Low OC/EC ratios(less than 1) for PM_(2.5) suggested that fresh diesel-engine exhaust was a major contributor.Seven sources were resolved for PM_(2.5) by positive matrix factorization(PMF) model,including vehicle emissions(~29%),secondary inorganic aerosols(~27%),waste incinerator/biomass burning(~23%),residual oil combustion(~10%),marine aerosols(~6%),industrial exhaust(~4%),and resuspended road dust(~1%).EC and OM comprised only ~19%of PM_(10-2.5).The average OC/EC ratio of PM_(10-2.5) was 7.8±14.2,suggesting that sources other than vehicular exhaust were important contributors.The sources for PM_(10-2.5) determined by the PMF model included ~20%traffic-generated resuspension(e.g.,tire dust/brake linear/petrol evaporation),~17% locally resuspended road dust,~17% marine aerosols,~12% secondary aerosols/field burning,and ~11%vehicle emissions.     

国外固体润滑文献索引

9010075(Z0075) /MoS_2涂层及其性能(日文),(1988),259:18～19. 9010076(Z0076) /石墨的润滑性能(日文),(1988),259:15～17. 9010077(Z0077) /MoS_2的应用(日文),M.,(1988),259:20～24. 9010078(Z0078) Determining the Mechanical Characteristics of Solid Lubricant Coating/测定固体润滑剂涂层的机械性能(英文),     

GRADUATE RESEARCH FELLOWSHIPS POSTDOCTORAL RESEARCH FELLOWSHIPS UNDERGRADUATE RESEARCH FELLOWSHIPS——Materials Science and Engineering The University of Tennessee,Knoxville

A number of (1) Ph.D. graduate research fellowships, (2) postdoctoral fellowships, and (3) undergraduate research fellowships are available immediately in the area of neutron-diffraction materials research. Candidates with strong backgrounds in Materials Science, Metallurgy (including Processing, and Mechanical/Physical Behavior), Computational Materials Science, Mechanical/Civil Engineering, Physics, Computer Science and Engineering, or a related field are encouraged to apply. The research activities will focus on the subjects of (1) in-situ neutron-diffraction characterization of mechanical behavior (plasticity, twinning, fatigue, and creep deformation) of advanced ma-     

ANALYSIS OF SURFACE CRACK ON FORWARD EXTRUDING BAR DURING AXISYMMETRIC CUP-BAR COMBINED EXTRUSION PROCESS

In this paper,the kinematically admissible velocity field with surface crack on forwardextruding bar is put forward during the axisymmetric cup-bar combined extrusion process,in accordance with the results of model experiments.On the basis of velocity field,the necessary condition for surface crack formation onthe forward extruding bar is derived,with the help of upper bound theorem and theminimum energy principle.Meanwhile,the relationships between surface crack formationand combination of reduction in area for the part of forward and backward extursions(εb,εf),relative residual thickness of billet(T/R_0),frictional factor(m)or relativeland length of ram and chamber(l_b/R_0,l_f/R_0)are calculated during the extrusion process.Therefore,whether the surface crack on forward exturding bar occurs can be predictedbefore extruding the lower-plasticity metals for axisymmetric cup-bar combined extrusionprocess.The analytical results agree very well with experimental results of aluminium alloyLY12 (ASTM2024)an     

Singular perturbation of nonlinear vector boundary value problem

In this paper we study the perturbed boundary value problem of the form dx/dt=f(x,y,t;ε), εdy/dt=g(x,y,t;ε), a_1(ε)x(0,ε)+a_2(ε)y(0,ε)=a(ε) b_1(ε)x(1,ε)+εb_2(ε)y(1,ε)=β(ε)in whichx,f,β∈E~m, y,g,a∈E~n, 0<ε(?)1and a_1(ε), a_2(ε), b_2(ε)and b_2(ε) are matrices of the appropriate size. Under the condition that g_y(t) is nonsingular and other suitable restrictions, the existence of the solution is proved, the asymptotic expansion of solution of order n is constructed, and the remainder term is estimated.     

《计算力学学报》简介

《计算力学学报》(Chinese Journal of Computational Mechanics),原名《计算结构力学及其应用》(Journal of Computational Structural Mechanics and Applications),是国家科技部批准、教育部主管、大连理工大学和中国力学学会联合主办的专业学术性期刊。1984年2月创刊,双月刊。     

流体力学作为科学的一门分支是否就要过时了?

任何一门科学分支的生命力均取决于该学科研究的自然现象的广度,尤其取决于吸引到该领域的科研工作者的人数和才能。在各种有意思的问题已经解决,或者经历一个衰变过程,那些能干的科研工作者把注意力转到别的方面,在这种时候,就会发生过时的问题。流体力学由于其主要科学研究课题来自技术的需要,所以直至最近仍在到处发挥着作用。流体力学作为科学的一门分支正在发生的危机是颇严重的。不过,近来有几方面的发展正在改变这种状况。为了看看这些影响,我查阅了《航空科学杂志》(Journal of the Aeronautical Science),》国家航空咨询委员会技术摘记》(NACA Technical Note),《应用物理杂志》(Journal of Applied Physics)这三种刊物,把十年前的情况作为标本,同1963年出版的《美国航空和宇航学会杂志》(AIAA Journal),《流体物理学》(Physics of Fluids),《流体力学杂志》(Journal of Fluid Mechanics)这三种杂志的目录作了比较。兴趣持久性表现最为突出的是转捩和湍流,也许这是物理科学中最大的未解决问题。此外还提示了流体力学的未来方向。      

GRADUATE RESEARCH FELLOWSHIPS POSTDOCTORAL RESEARCH FELLOWSHIPS UNDERGRADUATE RESEARCH FELLOWSHIPS

A number of (1) Ph.D. graduate research fellowships, (2) postdoctoral fellowships, and (3) undergraduate research fellowships are available immediately in the area of neutron-diffraction materials research. Candidates with strong backgrounds in Materials Science, Metallurgy (including Processing, and Mechanical/Physical Behavior), Computational Materials Science,     

GRADUATE RESEARCH FELLOWSHIPS POSTDOCTORAL RESEARCH FELLOWSHIPS UNDERGRADUATE RESEARCH FELLOWSHIPS

A number of ( 1 ) Ph. D. graduate reseatrch fellowships, (2) postdoctoral fellowships, and (3) undergraduate research fellowships are available immediately in the area of neutron-diffraction materials research. Candidates with strong backgrounds in Materials Science, Metallurgy (including Processing, and Mechanical/Physical Behavior), Computational Materials Science,     

GRADUATE RESEARCH FELLOWSHIPS POSTDOCTORAL RESEARCH FELLOWSHIPS UNDERGRADUATE RESEARCH FELLOWSHIPS

A number of (1) Ph.D. graduate research fellowships, (2) postdoctoral fellowships, and (3)undergraduate research fellowships are available immediately in the area of neutron-diffraction materials research. Candidates with strong backgrounds in Materials Science, Metallurgy (including Processing, and Mechanical/Physical Behavior), Computational Materials Science,     

Preparation of polyacrylamide/silica composite capsules by inverse Pickering emulsion polymerization

Polyacrylamide/silica(PAM/SiO_2) composite capsules were synthesized by inverse Pickering emulsion polymerization.Silica nanoparticles modified with methacryloxypropyltrimethoxysilane(MPS) were used as a stabilizer.Transmission electron microscopy(TEM),scanning electron microscopy(SEM),Fourier transform infrared(FT1R) spectroscopy,and thermal gravimetric analysis(TGA) were used to characterize the morphology and composition of the composite capsules.SEM and TEM images showed that capsules consisted of a particle shell and a polymer inner layer.The capsule size depends on the nanoparticle concentration in the continuous phase.The composite rigidity largely depends on the acrylamide concentration.FTIR and TGA results indicated the existence of polyacrylamide and SiO_2 in the composite particles.Aqueous Hg(Ⅱ) removal testing by the PAM/SiO_2 composite capsules indicated promising potential for removing heavy metal ions from wastewater.     

In situ synthesis of CNTs/Fe-Ni/TiO2 nanocomposite by fluidized bed chemical vapor deposition and the synergistic effect in photocatalysis

Carbon nanotube(CNTs)/Fe-Ni/TiO_2 nanocomposite photocatalysts have been synthesized by an in situ fluidized bed chemical vapor deposition(FBCVD) method.The composite photocatalysts were characterized by XRD,Raman spectroscopy,BET,FESEM,TEM,UV-vis spectroscopy,and XPS.The results showed that the CNTs were grown in situ on the surface of TiO_2.Fe(lll) in TiO_2 showed no chemical changes in the growth of CNTs.Ni(Ⅱ) was partly reduced to metal Ni in the FBCVD process,and the metal Ni acted as a catalyst for the growth of CNTs.The photocatalytic activities of CNTs/Fe-Ni/TiO_2 decreased with the rise of the FBCVD reaction temperature.For the sample synthesized at low FBCVD temperature(500℃),more than 90% and nearly 50% of methylene blue were removed under UV irradiation in 180 min and under visible light irradiation in 300 min,respectively.The probable mechanism of synergistic enhancement of photocatalysis on the CNTs/Fe-Ni/TiO_2 nanocomposite is proposed.