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Resistance projection welding for TO-Can style package

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Acta Metallurgica Sinica(English Letters) 2009年第4期22卷 255-262页

作者： Her-Yueh Huang Kuang-hung Tseng Department of Materials Science and Engineering National Formosa University Department of Materials Engineering National Pingtung University of Science and Technology

The effects of the process parameters on the joint quality of TO-Can using resistance projection welding were investigated.A capacitor discharge stored energy welding machine was used for joining caps and headers both coated with nickel SPCC *** electrode materials used in this study were brass and W-Cu ***-tal results indicated that the peak current of the W-Cu electrode was higher than that of the brass electrode,irrespective of the operating pressure *** operating pressure influenced the interfacial heat generation and nugget *** nugget area increased rapidly with increasing charging voltage,resulting in ex-pulsions and electrodes getting *** acceptable welding zone was found in the relationship between the charging voltage and the operating *** test specimens of the acceptable welding zone satisfactorily passed the helium leak *** microscopic morphology of the nugget showed a recrystallized fine grain structure resulting in the nugget being harder than with the HAZ.

关键词： Projection welding TO-Can Process parameters Acceptable welding zone Helium leak test

A Grey Simulation-Based Fuzzy Hierarchical Approach for Diagnosing Healthcare Service Quality

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Computers, Materials & Continua 2023年第2期74卷 3231-3248页

作者： Phi-hung Nguyen Hong-Anh Pham Faculty of Business FPT UniversityHanoi100000Vietnam

This study aims to assess and rank the service quality of the healthcare system utilizing a Fuzzy Analytical Hierarchical Process(Fuzzy AHP)andGreyRelationalAnalysis(Fuzzy GRA)*** this study,the six primary characteristics of healthcare service quality,comprising Tangibles(A),Healthcare Staff(B),Responsiveness(C),Relationships(D),Support Service(E),and Accessibility(F),are examined through a case study of 20 private and public hospitals in Hanoi,*** weighting results of Fuzzy AHP technique indicated that Responsiveness(C)has the highest ranking,followed by Relationships(D)and Healthcare Staff(B).Meanwhile,Tangibility has finally comprised the next priority for increasing satisfaction with the service quality in the healthcare ***,the highest service quality rankings are top 5 private hospitals via the Fuzzy GRA ***,this proposed approach may be applied to a complex decision-making process,which often makes sense with subjective data or imprecise information.

关键词： MCDM fuzzy sets AHP GRA healthcare Vietnam

Brightness of melanin-based plumage coloration is a cue to oxidative stress in Himalayan Black Bulbuls(Hypsipete leucocephalus nigerrimus)

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Chinese Birds 2015年第4期6卷 270-275页

作者： Hsin-Yi hung Shou-Hsien Li Department of Life science National Taiwan Normal University

Background: Melanin?based coloration is often found to be associated with variations in physiological and behavio?ral traits that are essential in avian ***,the function of melanin?based traits to their bearers has been investigated less than that of carotenoid?based *** is commonly believed that expression of melanin?based pigmentation is genetically ***,whether it could be modulated by physical condition has remained *** this study,we demonstrate that the level of melanin?based plumage pigmentation could be nega?tively correlated with an individual's oxidative stress ***: In this study,we used two groups of Black Bulbuls(Hypsipetes leucocephalus nigerrimus) obtained from a pet?shop in 2010 and 2011 to examine the correlation between the melanin?based plumage coloration and the ratio of lymphocytes to heterocytes,which is an indicator of the oxidative stress experienced by an ***: We found a negative correlation between oxidative stress levels and expression of melanin?based pigmen?tation on the breast and scapular feathers,but the correlation only appeared in the 2011 group,individuals of which had higher oxidative stress level and brighter plumage(*** melanins) than those of the 2010 ***: Our data suggest that melanin?based plumage could reflect an individual's physical condition in certain ***,melanin?based plumage coloration could have a function in Himalayan Black Bulbuls' communication.

关键词： Himalayan Black Bulbuls Hypsipetes leucocephalus nigerrimus Melanin-based trait Oxidative stress

Functional Design of A Series of Submerged Breakwaters for Coastal Protection Against Waves

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China Ocean Engineering 2010年第3期24卷 553-564页

作者： Li-hung TSAI Chih-Chung WEN Center of Harbor and Marine Technology Institute of TransportationMinistry of Transportation and Communications Department of Safety Health and Environmental EngineeringHungkuang University

The purpose of this paper is to develop a functional method for designing a series of submerged breakwaters on practical topography. The method is used to verify the feasibility and effectiveness of Bragg breakwaters for coastal protection by using field topography. The first part of this paper provides definitions and procedures needed in the design process for applying the mechanism of Bragg reflection. Next, Bragg breakwaters are designed on the basis of the cross-sectional topography and then on the plane topography of the Mi-Tuo coast by following the proposed process and procedure. Numerical modeling （Hsu et al., 2003; Wen and Tsai, 2008） was used as a design and assessment tool. Finally, the effectiveness and feasibility of a Bragg breakwater was assessed by practical cases. Based on the mechanism of Bragg reflection, an optimum layout for a series of submerged breakwaters is proposed to protect the Mi-Tuo coast. The results indicate that the proper layout of a series of submerged creakwaters can achieve the objective of beach protection.

关键词： a series of submerged breakwaters Bragg reflection coastal protection

Intelligent Mobile Video Surveillance System with Multilevel Distillation

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Journal of Electronic Science and Technology 2017年第2期15卷 133-140页

作者： Yuan-Kai Wang hung-Yu Chen Department of Electrical Engineering Fu Jen Catholic UniversityNew Taipei City 24205 Intelligent System Lab.Fu Jen Catholic University New Taipei City 24205

This paper proposes a mobile video surveillance system consisting of intelligent video analysis and mobile communication networking. This multilevel distillation approach helps mobile users monitor tremendous surveillance videos on demand through video streaming over mobile communication networks. The intelligent video analysis includes moving object detection/tracking and key frame selection which can browse useful video clips. The communication networking services, comprising video transcoding, multimedia messaging, and mobile video streaming, transmit surveillance information into mobile appliances. Moving object detection is achieved by background subtraction and particle filter tracking. Key frame selection, which aims to deliver an alarm to a mobile client using multimedia messaging service accompanied with an extracted clear frame, is reached by devising a weighted importance criterion considering object clarity and face appearance. Besides, a spatial- domain cascaded transcoder is developed to convert the filtered image sequence of detected objects into the mobile video streaming format. Experimental results show that the system can successfully detect all events of moving objects for a complex surveillance scene, choose very appropriate key frames for users, and transcode the images with a high power signal-to-noise ratio （PSNR）.

关键词： Index Terms---Mobile video streaming moving object detection key frame extraction video surveillance video transcoding.

NEW WEIGHTED MULTILINEAR OPERATORS AND COMMUTATORS OF HARDY-CESàRO TYPE

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Acta Mathematica Scientia 2015年第6期35卷 1411-1425页

作者： Ha Duy hung Luong Dang KY High School for Gifted Students Hanoi National University of Education Applied Analysis Research Group Faculty of Mathematics and StatisticsTon Duc Thang University

This paper deals with a general class of weighted multilinear Hardy-Cesaro op- erators that acts on the product of Lebesgue spaces and central Morrey spaces. Their sharp bounds are also obtained. In addition, we obtain sufficient and necessary conditions on weight functions so that the commutators of these weighted multilinear Hardy-Cesaro oper- ators （with symbols in central BMO spaces） are bounded on the product of central Morrey spaces. These results extends known results on multilinear Hardy operators.

关键词： Hardy-Ces^ro operators Hardy's inequality multilinear Hardy operator weig-hted Hardy-Littlewood averages

Injury-induced rapid activation of MAPK signaling in dechorionated eggs and larvae of the silkworm Bombyx mori

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Insect Science 2017年第2期24卷 248-258页

作者： Shi-Hong Gu Chien-hung Chen Department of Biology National Museum of Natural Science Taichung Taiwan China Chung Hwa University of Medical Technol-ogy Tainan County Taiwan China

Previous study showed that diapause in Bombyx mori eggs can be ter- minated by dechorionation and that activation in the mitogen-activated protein kinase （MAPK）/extracellular signal-regulated kinase （ERK） in dechorionated cultured eggs is involved in diapause termination. In the present study, the possible mechanism underlying activation of ERK upon dechorionation was further investigated. Results showed that me- chanical injury of diapause eggs without medium incubation also resulted in rapid increase in the phospho-ERK levels and that injury increased the phospho-ERK levels at different stages of both diapause eggs and eggs in which diapause initiation was prevented by HC1. Effects of anaerobiosis on dechorionation-stimulated phospho-ERK levels showed that the mechanical injury itself but not the dramatic increase in oxygen uptake upon injury is in- volved in a rapid activation of ERK. Chemical anaerobiosis on dechorionation-stimulated phospho-ERK levels and the in vivo effect of anaerobiosis showed that the supply of oxygen also plays a role in ERK signaling. In addition, injury induced the phosphory- lation of c-jun N-terminal kinases （JNKs） and p38 kinase, components of two parallel MAPK pathways. A kinase assay showed a dramatic increase in .INK kinase activity in egg lysates upon injury. When newly hatched first instar larvae were injured, an increase in the phospho-ERK levels similar to that in dechorionated eggs was observed. From the results, we hypothesize that the injury-induced rapid activation of MAPK signaling, which serves as a natural signal for embryonic development, is related to diapause termination in dechorionated eggs.

关键词： Bombyx mori dechorionation embryonic diapause ERK phosphorylation injury MAPK

Numerical Implementation of a Unified Viscoplastic Model for Considering Solder Joint Response under Board-Level Temperature Cycling

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Computer Modeling in Engineering & Sciences 2021年第8期128卷 639-668页

作者： hung-Chun Yang Tz-Cheng Chiu Department of Mechanical Engineering National Cheng Kung UniversityTainan701Taiwan

An implicit integration scheme was developed for simulating the viscoplastic constitutive behavior ofSn3.0Ag0.5Cu solder and programmed into a user material subroutine of the finite element software ANSYS. Thenumerical procedure first solves the essential state variables by using a three-level iterative procedure, and updatesthe remaining stress and state variables accordingly. The numerical implementation was applied to consider theresponses of solder joints in an electronic assembly under temperature cycling condition. The viscoplastic strainenergy density accumulation over one temperature cycle was identified as a feasible parameter for evaluating thethermomechanical reliability of the solder joints.

关键词： Pb-free hysteresis ratcheting fatigue tangent modulus

Salt Tolerance in Soybean

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Journal of Integrative Plant Biology 2008年第10期50卷 1196-1212页

作者： Tsui-hung Phang Hon-Ming Lam Department of Biology The Chinese University of Hong KongShatinHong Kong China State Key Laboratory for Agrobiotechnology The Chinese University of Hong KongShatinHong Kong China

Soybean is an important cash crop and its productivity is significantly hampered by salt stress. High salt imposes negative impacts on growth, nodulation, agronomy traits, seed quality and quantity, and thus reduces the yield of soybean. To cope with salt stress, soybean has developed several tolerance mechanisms, including：（i） maintenance of ion homeostasis; （ii） adjustment in response to osmotic stress; （iii） restoration of osmotic balance; and （iv） other metabolic and structural adaptations. The regulatory network for abiotic stress responses in higher plants has been studied extensively in model plants such as Arabidopsis thaliana. Some homologous components involved in salt stress responses have been identified in soybean. In this review, we tried to integrate the relevant works on soybean and proposes a working model to describe its salt stress responses at the molecular level.

关键词： abiotic stress Glycine max ion homeostasis osmotic adjustment reactive oxygen species scavenging salt tolerance soybean.