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1,029 results on '"Lu, C-Y"'

201. Strain measurements in a rotary engine housing

Author

Lee, C. M, Bond, T. H, Addy, H. E, Chun, K. S, and Lu, C. Y

Subjects
Mechanical Engineering
Abstract

The development of structural design tools for Rotary Combustion Engines (RCE) using Finite Element Modeling (FEM) requires knowledge about the response of engine materials to various service conditions. This paper describes experimental work that studied housing deformation as a result of thermal, pressure and mechanical loads. The measurement of thermal loads, clamping pressure, and deformation was accomplished by use of high-temperature strain gauges, thermocouples, and a high speed data acquisition system. FEM models for heat transfer stress analysis of the rotor housing will be verified and refined based on these experimental results.

Published
1989

202. Estimation of instantaneous heat transfer coefficients for a direct-injection stratified-charge rotary engine

Author

Lee, C. M, Addy, H. E, Bond, T. H, Chun, K. S, and Lu, C. Y

Subjects
Mechanical Engineering
Abstract

The main objective of this report was to derive equations to estimate heat transfer coefficients in both the combustion chamber and coolant pasage of a rotary engine. This was accomplished by making detailed temperature and pressure measurements in a direct-injection stratified-charge rotary engine under a range of conditions. For each sppecific measurement point, the local physical properties of the fluids were calculated. Then an empirical correlation of the coefficients was derived by using a multiple regression program. This correlation expresses the Nusselt number as a function of the Prandtl number and Reynolds number.

Published
1987

203. Manual of phosphoric acid fuel cell power plant cost model and computer program

Author

Lu, C. Y and Alkasab, K. A

Subjects
Energy Production And Conversion
Abstract

Cost analysis of phosphoric acid fuel cell power plant includes two parts: a method for estimation of system capital costs, and an economic analysis which determines the levelized annual cost of operating the system used in the capital cost estimation. A FORTRAN computer has been developed for this cost analysis.

Published
1984

204. Manual of phosphoric acid fuel cell stack three-dimensional model and computer program

Author

Lu, C. Y and Alkasab, K. A

Subjects
Energy Production And Conversion
Abstract

A detailed distributed mathematical model of phosphoric acid fuel cell stack have been developed, with the FORTRAN computer program, for analyzing the temperature distribution in the stack and the associated current density distribution on the cell plates. Energy, mass, and electrochemical analyses in the stack were combined to develop the model. Several reasonable assumptions were made to solve this mathematical model by means of the finite differences numerical method.

Published
1984

205. Manual of phosphoric acid fuel cell power plant optimization model and computer program

Author

Lu, C. Y and Alkasab, K. A

Subjects
Energy Production And Conversion
Abstract

An optimized cost and performance model for a phosphoric acid fuel cell power plant system was derived and developed into a modular FORTRAN computer code. Cost, energy, mass, and electrochemical analyses were combined to develop a mathematical model for optimizing the steam to methane ratio in the reformer, hydrogen utilization in the PAFC plates per stack. The nonlinear programming code, COMPUTE, was used to solve this model, in which the method of mixed penalty function combined with Hooke and Jeeves pattern search was chosen to evaluate this specific optimization problem.

Published
1984

206. Phosphoric acid fuel cell power plant system performance model and computer program

Author

Alkasab, K. A and Lu, C. Y

Subjects
Energy Production And Conversion
Abstract

A FORTRAN computer program was developed for analyzing the performance of phosphoric acid fuel cell power plant systems. Energy mass and electrochemical analysis in the reformer, the shaft converters, the heat exchangers, and the fuel cell stack were combined to develop a mathematical model for the power plant for both atmospheric and pressurized conditions, and for several commercial fuels.

Published
1984

212. Numerical Simulation of the Read Disturb Behavior on the ONO Scaling Margin in SONOS Flash Memory

Author

Lee, C. H., primary, Wu, C. W., additional, Lin, S. W., additional, Yeh, T. H., additional, Gu, S. H., additional, Chen, K. F., additional, Chen, Y. J., additional, Hsieh, J. Y., additional, Huang, I. J., additional, Zous, N. K., additional, Han, T. T., additional, Chen, M. S., additional, Lu, W. P., additional, Chen, K. C., additional, Wang, T., additional, and Lu, C. Y., additional

Published
2008
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221. Numerical Simulation of Programming Transient Behavior in Charge Trapping Storage Memory

Author

Lee, C. H., primary, Wu, C. W., additional, Lin, S. W., additional, Yeh, T. H., additional, Gu, S. H., additional, Chen, K. F., additional, Chen, Y. J., additional, Hsieh, J. Y., additional, Huang, I. J., additional, Zous, N. K., additional, Han, T. T., additional, Chen, M. S., additional, Lu, W. P., additional, Wang, Tahui, additional, and Lu, C. Y., additional

Published
2008
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226. Engineering of the Rose Flavonoid Biosynthetic Pathway Successfully Generated Blue-Hued Flowers Accumulating Delphinidin

Author

Katsumoto, Y., primary, Fukuchi-Mizutani, M., additional, Fukui, Y., additional, Brugliera, F., additional, Holton, T. A., additional, Karan, M., additional, Nakamura, N., additional, Yonekura-Sakakibara, K., additional, Togami, J., additional, Pigeaire, A., additional, Tao, G.-Q., additional, Nehra, N. S., additional, Lu, C.-Y., additional, Dyson, B. K., additional, Tsuda, S., additional, Ashikari, T., additional, Kusumi, T., additional, Mason, J. G., additional, and Tanaka, Y., additional

Published
2007
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232. Mediating effects of social support and self-concept on depressive symptoms in adults with spinal cord injury.

Author

Huang, C-Y, Chen, W-K, Lu, C-Y, Tsai, C-C, Lai, H-L, Lin, H-Y, Guo, S-E, Wu, L-M, and Chen, C-I

Subjects
MENTAL depression risk factors, SPINAL cord injuries, CONCEPTUAL structures, STATISTICAL correlation, GOODNESS-of-fit tests, HEALTH status indicators, QUESTIONNAIRES, STATISTICAL sampling, SCALE analysis (Psychology), SELF-perception, ACTIVITIES of daily living, SOCIAL support, CROSS-sectional method, DATA analysis software, DESCRIPTIVE statistics, PSYCHOLOGY
Abstract

Study design:Cross-sectional, correlational design.Objectives:To examine the effects of individual demographics, activities of daily living, social support, and self-concept on depressive symptoms in people with spinal cord injury (SCI).Setting:A convenience sample of 135 adults with SCI was recruited from medical and rehabilitation centres in Taiwan.Methods:Face-to-face, structured interviews were employed to collect information. Study questionnaires included a demographic sheet, the Barthel scale, the modified Social Support Inventory, the Huang self-concept scale and the Beck Depression Inventory. Data were analysed by structural equation modelling (SEM).Results:The average age of the participants was 43.3 years (±11.98), the mean duration of injury was 114 months (±93.78), and most were males. Emotional support (r=−0.173, P<0.05) and appraisal support (r=−0.261, P<0.01) were negatively correlated with depressive symptoms. The best fitted SEM model included individual demographics and physical function, social support and self-concept as significant predictors of depressive symptoms, with self-concept acting as a mediator in this relationship. Participants' characteristics and social support both contributed substantial indirect effects on depressive symptoms via self-concept. Self-concept also mediated the relationship between education, income, physical functioning and participants' depressive symptoms.Conclusion:For this sample, the more negative that individuals perceived themselves, the more likely they were to report worsening depressive symptoms. The more social support that individuals have, the more likely they were to report less depressive symptoms. Further longitudinal research will help clarify the direction of these relationships. [ABSTRACT FROM AUTHOR]

Published
2015
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246. A Highly Stackable Thin-Film Transistor (TFT) NAND-Type Flash Memory

Author

Lai, E.-K., primary, Lue, H.-T., additional, Hsiao, Y.-H., additional, Hsieh, J.-Y., additional, Lee, S.-C., additional, Lu, C.-P., additional, Wang, S.-Y., additional, Yang, L.-W., additional, Chen, K.-C., additional, Gong, J., additional, Hsieh, K.-Y., additional, Ku, J., additional, Liu, R., additional, and Lu, C.-Y., additional

Published
2006
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248. Docosahexaenoic acid, a constituent of rodent fetal serum and fish oil diets, inhibits acquisition of macrophage tumoricidal function

Author

Lynn Dustin, Shea, C. M., Soberman, R. J., and Lu, C. Y.

Subjects
Immunology, Immunology and Allergy, lipids (amino acids, peptides, and proteins)
Abstract

Macrophage (M phi) activation is deficient in the fetus and neonate, at times when the serum concentration of docosahexaenoic acid (DHA; 22:6n3) is approximately 10-fold higher than in the adult. We tested the effects of highly purified DHA on M phi activation in vitro. M phi were stimulated with rIFN-gamma plus either of two second or "triggering" signals, LPS or heat-killed Listeria monocytogenes. M phi activation was assayed as the lysis of P815 mastocytoma cells, which are resistant to TNF-alpha. DNA inhibited the activation of peritoneal M phi and the M phi line RAW264.7 in a dose-dependent manner at concentrations between 20 and 160 microM. These concentrations are found in fetal and neonatal rodent sera. Another polyunsaturated fatty acid, arachidonic acid (20:4n6), was much less inhibitory. In contrast to its profound effect on tumoricidal activation, DHA did not inhibit phagocytosis and catabolism of 125I-heat-killed Listeria monocytogenes. Increasing the rIFN-gamma or second signals reduced the inhibition of tumoricidal activation by DHA but not M phi incorporation of 14C-DHA. When the rIFN-gamma and second signals were separated in time, DHA was far more inhibitory if delivered with the triggering signal than if delivered with the rIFN-gamma. However, the incorporation of 14C-DHA was the same under these two conditions. In M phi treated with DHA during LPS stimulation, the inhibition was time-dependent, requiring more than 2 h. Although DHA inhibits cyclooxygenase activity, its inhibition of M phi activation was not reversed with the following cyclooxygenase products: PGE2, a stable TXA2 analog (U-46, 619) or a stable PGI2 analog (Iloprost). Although DHA is metabolized by lipoxygenases, the inhibition was not reversed by the lipoxygenase inhibitors 5, 8, 11, 14-eicosatetraynoic acid and nordihydroguaiaretic acid. Altogether, the data indicate that DHA, at concentrations present in fetal and neonatal sera, inhibits M phi activation and may contribute to the previously observed deficits in M phi function in the fetus and neonate.

Published
1990

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