41 Result(s)

Article

Applications of a Family of Unconditionally Stable, Dissipative, Explicit Methods to Pseudodynamic Tests

A newly developed dissipative family method is adopted and implemented for pseudodynamic tests in this investigation since it can have desired numerical properties. In fact, it can integrate unconditional stab...

S-Y. Chang, T-H. Wu, N-C. Tran, Y-S. Yang in Experimental Techniques (2017)

Article

Effects of copper content on the microstructure and brazing properties of Al-Si-Cu-Zn-Re filler metals

The microstructure, phase constitution, melting character, and 6061 aluminum alloy brazing properties of Al-Si-Cu-Zn-Re filler metals with different copper contents were investigated. The Al-9.6Si-10Cu-10Zn-0....

S. Y. Chang, Y. H. Lei, L. C. Tsao, T. Y. Li in Welding in the World (2016)

Article

Effect of TiO₂ nanoparticle addition and cooling rate on microstructure and mechanical properties of novel Sn1.5Sb0.7Cu solders

The effects of TiO₂ nanoparticles and cooling rate on the microstructure and mechanical properties of Sn1.5Sb0.7Cu alloy were investigated. A higher cooling rate and TiO₂ nanoparticles refined the primary β-Sn de...

C. H. Huang, Chin-Hsin Chen, S. Y. Chang… in Journal of Materials Science: Materials in… (2015)

Article

Self-consolidation mechanism of porous-surfaced Ti implant compacts induced by electro-discharge-sintering of spherical Ti powders

Porous-surfaced Ti implant compacts, with a solid core surrounded by a porous layer, were self-assembled by electro-discharge-sintering directly from spherical Ti powders. During an electro-discharge, instant ...

Y. H. Jo, Y. H. Kim, Y. J. Jo, J. G. Seong… in Metals and Materials International (2015)

Article

Kefir improves bone mass and microarchitecture in an ovariectomized rat model of postmenopausal osteoporosis

Kefir treatment in ovariectomized (OVX) rats could significantly decrease the levels of bone turnover markers and prevent OVX-induced bone loss, deterioration of trabecular microarchitecture, and biomechanical...

H.-L. Chen, Y.-T. Tung, C.-H. Chuang, M.-Y. Tu, T.-C. Tsai… in Osteoporosis International (2015)

Article

Rapid formation of Ti oxycarbide on the surface of Ti induced by electro-discharge-heat-treatment in a low vacuum atmosphere

A single pulse of 2.0 to 3.5 kJ of input energy from a 450 μF capacitor was applied in a low vacuum atmosphere to a commercially pure Ti rod. The electro-discharge process produced rapid temperature increases ...

Y. J. Jo, Y. H. Kim, Y. H. Jo, J. G. Seong, Y. K. Ko… in Metals and Materials International (2015)

Article

Effect of TiO₂ nanoparticles on the microstructure and bonding strengths of Sn0.7Cu composite solder BGA packages with immersion Sn surface finish

This study investigated the effects of TiO₂ nanoparticles on the interfacial microstructures and bonding strength of Sn0.7Cu (SC) composite solder joints in ball grid array packages with immersion Sn surface fini...

L. C. Tsao, M. W. Wu, S. Y. Chang in Journal of Materials Science: Materials in Electronics (2012)

Article

The morphology and kinetic evolution of intermetallic compounds at Sn–Ag–Cu solder/Cu and Sn–Ag–Cu-0.5Al₂O₃ composite solder/Cu interface during soldering reaction

In this work, Sn3.0Ag0.7Cu (SAC) composite solders were produced by mechanically intermixing 0.5 wt% Al₂O₃ nanoparticles into Sn3.0Ag0.7Cu solder. The formation and growth kinetics of the intermetallic compounds ...

S. Y. Chang, L. C. Tsao, M. W. Wu… in Journal of Materials Science: Materials in… (2012)

Article

Strengthening mechanism of nano-Al₂O₃ particles reinforced Sn3.5Ag0.5Cu lead-free solder

To improve the properties of the eutectic Sn3.5Ag0.5Cu lead-free solder, various amounts of mixed nano-Al₂O₃ particles were added. The microstructure, thermal analysis, density, thermal expansion coefficient (CTE...

T. H. Chuang, M. W. Wu, S. Y. Chang… in Journal of Materials Science: Materials in… (2011)

Article

Interfacial reactions between liquid Sn3.5Ag0.5Cu solders and Ag substrates

The morphology and growth kinetics of intermetallic compounds (IMCs) formed during the soldering reactions between Sn3.5Ag0.5Cu and Ag substrates at various temperatures ranging from 250 to 350 °C were investi...

R. W. Wu, L. C. Tsao, S. Y. Chang… in Journal of Materials Science: Materials in… (2011)

Article

Confirmation of pseudodynamic technique for bidirectional loading

S. -Y. Chang in Experimental Techniques (2011)

Chapter

Fuzzy Modeling with Grey Prediction for Designing Power System Stabilizers

This work presents a novel method for designing power system stabilizers (PSS) by using a fuzzy PID controller tuned with grey prediction. The PSS design can be formulated as an optimal linear regulator contro...

Y. T. Hsiao, T. L. Huang, S. Y. Chang in Granular Computing and Intelligent Systems (2011)

Article

Slack-based ranking method: an interpretation to the cross-efficiency method in DEA

The cross-efficiency method is generally utilized to rank decision-making units (DMUs) in data envelopment analysis (DEA) based on peer-evaluation logic. This brief note provides a method of using the availabl...

C-P Bao, T-H Chen, S-Y Chang in Journal of the Operational Research Society (2008)

Article

The prediction of maximum forging load and effective stress for different material of bevel gear forging

The manufacture of gears by applying hot or cold bulk forming processes is a quite widespread production method due to its well-known basic advantages such as material and time cost reduction and the increased...

T. S. Yang, N. C. Hwang, S. Y. Chang in Journal of Mechanical Science and Technology (2007)

Article

Low Temperature Bonding of Alumina/Alumina and Alumina/Copper in Air Using Sn3.5Ag4Ti(Ce,Ga) Filler

Sn3.5Ag4Ti(Ce,Ga) active filler was used for joining alumina with alumina and alumina with copper at 250°C in air. The joining process was done without flux and without the need for pre-metallization of alumin...

S.Y. Chang, T.H. Chuang, C.L. Yang in Journal of Electronic Materials (2007)

Article

The Isothermal and Cyclic Oxidation Behavior of a Titanium Aluminide Alloy at Elevated Temperature

The isothermal and cyclic oxidation behavior of Ti-47Al-2Mn-2Nb with 0.8 vol.% TiB₂ particle-reinforced alloy was investigated in air between 700 and 1000 °C. In the study, the kinetics of isothermal and cyclic o...

S.Y. Chang in Journal of Materials Engineering and Performance (2007)

Article

Overexpression of NBS1 induces epithelial–mesenchymal transition and co-expression of NBS1 and Snail predicts metastasis of head and neck cancer

Major causes of head and neck squamous cell carcinoma (HNSCC)-related deaths are cervical node and distant metastasis. We previously demonstrated that overexpression of the DNA double-strand break repair prote...

M-H Yang, S-Y Chang, S-H Chiou, C-J Liu, C-W Chi, P-M Chen, S-C Teng, K-J Wu in Oncogene (2007)