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Diamond breakage on CMP pad conditioner

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金刚石与磨料磨具工程 2008年第S1期28卷 115-118页

作者： Liu ping-Hsiao Sung James C. hsu Kai-Hung Sung Michael National Taipei University of Technology KINIK Company 64Chung-San Rd.Ying-Kuo National Taiwan University Advanced Diamond Solutions Inc.351 King Street Suite 813San FranciscoCA 94158U.S.A.

Diamond grits may be thermally weakened during the high temperature cycle of *** weakening may exhibit as diamond *** the dressing action,taller diamond grits are more likely to break due to the higher stress present.

关键词： diamond brazing diamond breakage CMP pad conditioner

Comprehensive characterization of ambient nanoparticles collected near an industrial science park:Particle size distributions and relationships with environmental factors

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Journal of Environmental Sciences 2011年第8期23卷 1334-1341页

作者： Yuhjeen Huang Lingyen hsu Yunghsun Chang Department of Biomedical Engineering and Environmental Sciences "National" Tsing Hua University

We investigated the characteristics of ambient particles and their relationships with various environmental factors, including gaseous pollutants （CI-h, non-methane hydrocarbons （NMHC）, total hydrocarbons （THC）, NOx, CO, SO2）, meteorological parameters （humidity, temperature）, and time （day/night, workday/weekend）. We used an electrical low-pressure cascade impactor to measure the number and size distributions of ambient particles （0.007-10 ~m） that were collected approximately 1 km northwest of Hsinchu Science Park in Taiwan between February and May 2007. The number concentrations of particles were enhanced through photochemical reactions during the day. In addition, high traffic flow during workdays increased the formation of particulates. Except for SO2, all of the gaseous pollutants we studied （CH4, NMHC, THC, NOx, CO） correlated positively with the total number concentrations of ambient particles during daytime, indicating that they might contribute to the particulate burden. The poorer relationship between the SO2 level and the total number concentration of particles suggests that SO2 might participate indirectly in the nucleation process during particle formation, The high enrichment factors for Zn, Pb, Cu, and Mn, which mostly comprised the ultrafine particles （diameter：〈 0.1 Ixm） and fine particles （diameter： 0.1-1 ~tm）, presumably arose from emissions from traffic and high technology factories. Heterogeneous reactions on solid particles might play a role in the removal of SOx and NOx from the atmosphere. Sulfides and nitrides can further react with these local pollutants, forming specific Cu-containing compounds： Cut （39%）, CuSO4 （34%）, and Cu（NO3）2 （27%）, within the ambient particles in this industrial area.

关键词： environmental factors ambient particles electrical low-pressure impactor (ELPI) XANES

A new weir surface repair layer with shock absorbing cushion design

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Earthquake Engineering and Engineering Vibration 2013年第3期12卷 487-496页

作者： Tse-Shan hsu Yi-Lang Hsieh Department of Civil Engineering Feng-Chia University Ph.D Program in Civil and Hydraulic Engineering Feng-Chia University

A shock absorbing cushion has never been introduced into any traditional weir surface repair layer design. However, shocks induced by high discharge with heavy sediment can easily produce brittle fracture and peeling over a weir surthce repair layer as it is impacted by floods accompanied by particles of different sizes. In this study, transcending traditional designs, the authors developed a composite unit designed with a shock absorbing cushion that has performed well during field tests, proving that the weir body can be effectively protected even if the composite units are directly laid on a severely uneven weir surface repair layer.

关键词： shock absorbing cushion brittle fracture peeling weir

A family of explicit algorithms for general pseudodynamic testing

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Earthquake Engineering and Engineering Vibration 2011年第1期10卷 51-64页

作者： Shuenn-Yih Chang Chi-Wei hsu Department of Civil Engineering Taipei University of Technology (NTUT) NTUT Box 2653

A new family of explicit pseudodynamic algorithms is proposed for general pseudodynamic testing. One particular subfamily seems very promising for use in general pseudodynamic testing since the stability problem for a structure does not need to be considered. This is because this subfamily is unconditionally stable for any instantaneous stiffness softening system, linear elastic system and instantaneous stiffness hardening system that might occur in the pseudodynamic testing of a real structure. In addition, it also offers good accuracy when compared to a general second-order accurate method for both linear elastic and nonlinear systems.

关键词： pseudodynamic test explicit method unconditional stability dominant mode structural dynamics instantaneous degree of nonlinearity

Comparison of capability of time integration methods in capturing dynamic loading

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Earthquake Engineering and Engineering Vibration 2010年第3期9卷 409-423页

作者： Shuenn-Yih Chang Chi-Wei hsu Department of Civil Engineering Taipei University of Technology

Numerical properties of the time integration method proposed by the first author of this paper in 2007 are the same as those of the constant average acceleration method （AAM） for linear elastic systems, except that the capability to capture dynamic loading was not explored. It was found that there were different quadrature equations to predict the next step displacement increment. A modified quadrature equation of this method was derived so that the equation to determine the next step displacement was numerically equivalent to the equation used in the constant AAM. It was verified that the original form of this method, in general, had a better capability to capture dynamic loadings than the constant AAM. This excellent property, in addition to computational efficiency, will help to make this method competitive with general secondorder accurate integration methods.

关键词： equations of motion quadrature equation constant average acceleration method integration methods

Networking dual-surveillance/dual-pair-tele-paths for critical urban areas

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Journal of Southeast University(English Edition) 2008年第S1期24卷 114-119页

作者： hsu Li-Yen Department of Aviation Management China Institute of TechnologyHsinchu 31241

Providing a reliable and efficient communication infrastructure for critical regions is generally a strategy used to enhance regional safety or to sustain regional development. For such purposes, the spider-web network is prototyped as a cellular telecommunication infrastructure for its advantages including being interference-free, possessing fault-tolerance, having security management, and countering radio's multipath effects. Besides, it is used to develop area-based-street-SCADA (supervisory control and data acquisition) networks composed of regular optimal degree-3 prototyped sub-networks with the concepts of dual-surveillance, operational order and Hamiltonian laceability, and it flexibly fits various circulation configurations. Moreover, it can offer integrative response capabilities even after two paths' SCADA networks have been ruined.

关键词： supervisory control and data acquisition (SCADA) telecommunication transportation

Isothermal section of ternary Sn-Zn-Ni phase equilibria at 250℃

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Progress in Natural Science:Materials International 2011年第5期21卷 386-391页

作者： Sinn-wen CHEN Chia-ming hsu Chin-yi CHOU Che-wei hsu Department of Chemical Engineering National Tsing Hua University

Ternary Sn-Zn-Ni alloys were prepared and equilibrated at 250℃for 4-15 *** phases formed in these equilibrated alloys were determined *** isothermal section of Sn-Zn-Ni system was constructed,based on the phase diagrams of the three constituent binary systems and the ternary phase equilibria data,determined in this study and referenced in literatures.12 single-phase regions were identified in the Sn-Zn-Ni ternary system at 250℃,including the three ternary compounds,δ,τ1andτ*** were 13 ternary phase regions and 23 binary phase regions in the 250℃Sn-Zn-Ni isothermal *** solubility of Zn in the binary Sn-Ni compounds is significant,and is 15.1%（mole fraction） in the Ni3Sn phase.

关键词： Pb-free solder phase equilibria Sn-Zn Ni

Multiple solutions for weighted nonlinear elliptic system involving critical exponents

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Science China Mathematics 2015年第1期58卷 161-178页

作者： NYAMORADI Nemat hsu Tsing San Department of Mathematics Faculty of Sciences Razi University Department of Natural Sciences in the Center for General Education Chang Gung University

In this paper, by using the idea of category, we investigate how the shape of the graph of h（x） affects the number of positive solutions to the following weighted nonlinear elliptic system： = （ N-2-2a 2. where 0 is a smooth bounded domain in ]1N （N 〉 3）, A, cr 〉 0 are parameters, 0 ≤ μ 〈 μa a 2 ＇ h（x）, KI（X） and K2（x） are positive continuous functions in , 1 〈 q 〈 2, a, β 〉 1 and a ＋ β = 2＊（a,b）（2＊（a, b） 2N = N-2（1＋a-b） is critical Sobolev-Hardy exponent）. We prove that the system has at least k nontrivial nonnegative solutions when the pair of the parameters （）, r） belongs to a certain subset of N2.

关键词： Caffarelli-Kohn-Nirenberg inequality variational method critical Hardy-Sobolev exponent mul-tiple positive solutions

EXISTENCE OF MULTIPLE POSITIVE SOLUTIONS FOR SEMILINEAR ELLIPTIC SYSTEMS INVOLVING m CRITICAL HARDY-SOBOLEV EXPONENTS AND m SIGN-CHANGING WEIGHT FUNCTION

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Acta Mathematica Scientia 2014年第2期34卷 483-500页

作者： Nemat NYAMORADI Tsing-San hsu Department of Mathematics Faculty of SciencesRazi University Department of Natural Sciencesin the Center for General Education Chang Gung University

In this article, we consider a class of degenerate quasilinear elliptic problems with weights and nonlinearity involving the critical Hardy-Sobolev exponent and one sign- changing function. The existence and multiplic... 详细信息

关键词： Nontrivial non-negative solutions Nehari manifold critical Hardy-Sobolev ex-ponent