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Chang, Shih-Yi,Tso, Tai-Ly,Lo, Jiunn-Gung,Huang, Jer-Luen,Lin, Cheng Ming 한국분석과학회 1995 분석과학 Vol.8 No.4
Toxic air pollutants are investigated in a petrochemical industrial park in Taiwan by using a movable open path FTIR. The results show the qualitative and quantitative analysis of emission gases from plants, and also provide the emission rate of different compounds. More than twenty compounds under usual operation are found from this industrial park. The concentration variation with time can be correlated exactly with wind direction. It means that by changing the measuring points, the source of emission can be unambiguously identified. An EPA proved PAL model is applied to estimate the emission rate of either a point or an area source. Local atmospheric stability is determined by releasing the $SF_6$ tracer. The origins of errors come mainly from the uncertainty of source's configuration and the variation of meteorological condition. Through the continuous measurement (half an hour base in this study) of OP-FTIR sensor, the maximum value of emission rate and the annual amount of emission can be derived. The emission rate of the measured toxic gases are derived by the model technique and the results show that the emission amount are in the order of ten to hundred tons per year.
Pao-Huan Chen(Pao-Huan Chen),Chun-Ming Shih(Chun-Ming Shih),Chi-Kang Chang(Chi-Kang Chang),Chia-Pei Lin(Chia-Pei Lin),Yung-Han Chang(Yung-Han Chang),Hsin-Chien Lee(Hsin-Chien Lee),El-Wui Loh(El-Wui Lo 대한정신약물학회 2023 CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE Vol.21 No.2
Objective: Predicting disease relapse and early intervention could reduce symptom severity. We attempted to identify potential indicators that predict the duration to next admission for an acute affective episode in patients with bipolar I disorder. Methods: We mathematically defined the duration to next psychiatric admission and performed single-variate regressions using historical data of 101 patients with bipolar I disorder to screen for potential variables for further multivariate regressions. Results: Age of onset, total psychiatric admissions, length of lithium use, and carbamazepine use during the psychiatric hospitalization contributed to the next psychiatric admission duration positively. The all-in-one found that hyperlipidemia during the psychiatric hospitalization demonstrated a negative contribution to the duration to next psychiatric admission; the last duration to psychiatric admission, lithium and carbamazepine uses during the psychiatric hospitalization, and heart rate on the discharge day positively contributed to the duration to next admission. Conclusion: We identified essential variables that may predict the duration of bipolar I patients’ next psychiatric admission. The correlation of a faster heartbeat and a normal lipid profile in delaying the next onset highlights the importance of managing these parameters when treating bipolar I disorder.
Adjusting Recreation Specialization Investments to Develop a Tourism Destination
Shih-Ming Ou,Ching Chang,Zong-Wei Zhu 세계문화관광학회 2010 Conference Proceedings Vol.11 No.0
This paper explores the question of how recreation specialization affects the development of a tourism destination over time. We formulate the development process as an optimal control problem by adjusting specialization investments for the purpose of either attracting more tourists or discouraging tourists from visiting. Our research suggests investment strategies for two types of tourism destination consistent with the intensity of correlation between recreational activities and degree of specialization. Our data show that when the influx of tourists exceeds the carrying capacity of a destination, tourism companies will reduce investment to avoid congestion. Otherwise, companies will increase expenditures to maximize profits.
Applying Interactive Genetic Algorithms to Disassembly Sequence Planning
Shih-Chen Lee,Hwai-En Tseng,Chien-Cheng Chang,Yu-Ming Huang 한국정밀공학회 2020 International Journal of Precision Engineering and Vol.21 No.4
In addition to garbage sorting and resource recycling, green design should be a fundamental method for solving environmentalproblems, and design for disassembly is an important foundation of green design. This study focuses on providingquantitative assessment methods for designers’ reference. This study proposes interactive genetic algorithms to solve theproblem of disassembly sequence planning. First, the disassembly factor is measured by the fuzzy scoring procedure method,and then the genetic algorithm is used to select the optimal sequence. With the penalty value provided from the process, areference is provided for the revised design. Finally, examples are discussed to demonstrate that the proposed approach isa feasible method.
( Wen Ming Chen ),( Yi Lin Chang ),( Chung Young Chiu ),( Yi Sheu Shih ) 한국미생물 · 생명공학회 2010 Journal of microbiology and biotechnology Vol.20 No.10
A bacterial strain designated GR5T, previously isolated from a freshwater culture pond in Taiwan while screening for bacteria for antimicrobial compounds, was characterized using a polyphasic taxonomic approach. Strain GR5T was found to be Gram-negative, aerobic, greenish-yellow colored, rod-shaped, and motile by means of a single polar flagellum. Growth occurred at 10-40oC (optimum, 35oC), pH 7.0-8.0 (optimum pH 8.0), and with 0-2.0% NaCl (optimum, 0.5-1.0%). The major fatty acids were C16:1ω7c (36.3%), C16:0 (16.6%), C12:0 3-OH (12.5%), and C18:1ω7c (9.1%). The major respiratory quinone was Q-8, and the DNA G+C content of the genomic DNA was 51.9 mol%. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain GR5T belongs to the genus Rheinheimera, where its most closely related neighbors are Rheinheimera texasensis A62-14BT and Rheinheimera tangshanensis JA3-B52T with sequence similarities of 98.1% and 97.5%, respectively, and the sequence similarities to any other recognized species within Gammaproteobacteria are less than 96.5%. The mean level of DNA-DNA relatedness between strain GR5 T and R. texasensis A62-14BT, the strain most closely related to the isolate, was 26.5±7.6%. Therefore, based on the phylogenetic and phenotypic data, strain GR5T should be classified as a novel species, for which the name Rheinheimera aquatica sp. nov. is proposed. The type strain is GR5T (=BCRC 80081T= LMG 25379T).
Design of a hydraulic anti-lock braking system (ABS) for a motorcycle
Chun-Kuei Huang,Ming-Chang Shih 대한기계학회 2010 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.24 No.5
This work presents a hydraulic anti-lock braking system (ABS) for a motorcycle. The ABS has a hydraulic modulator and an intelligent controller. The hydraulic modulator is analyzed, and then equipped on a scooter for road tests. The intelligent controller controls the hydraulic modulator by estimated vehicle velocity to calculate the slip ratio of the wheels in real time. The performance of the hydraulic modulator and intelligent controller are assessed by the hardware-in-the-loop (HIL) simulations and road tests. In HIL simulation, the ABS is tested for different initial braking velocities on roads with different adhesive coefficients. Furthermore, both HIL simulations and road tests are conducted on a one-phase pavement road and three-phase pavement road.