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The Feasibility of Establishing Color Imagery Scales for Various Constructional Landscapes
Wen-Guey Kuo,Yu-Pin Li,Yuh-Chang Wei,Chih-Wen Cheng,Wei-Min Fu 한국색채학회 2017 AIC 2017 Jeju Vol.2017 No.10
A methodology of quantifying the environmental color imagery of color images of constructional landscapes individually was created in this study based on the new color imagery scales designed with combining a modified psychophysical method, Magnitude Estimation Method celebrated in the field of color science and the semantic differential method proposed by Osgood. The color imageries of the cumulated constructional landscape-image samples respectively were further estimated under a conditioned room using the creative experimental methodology. Meanwhile, a set of new environmental color imagery scales LEB were derived from the experimental results, and would be expected to raise the feasibility of computerized prediction in color imagery for the practical environment at speed during the field trial in the near future.
Descriptor Observers for Robust Fault Reconstruction in a Class of Nonlinear Descriptor Systems
Joseph Chang Lun Chan,Tae H. Lee,Wen-Shyan Chua,Chee Pin Tan 제어·로봇·시스템학회 2023 International Journal of Control, Automation, and Vol.21 No.3
This paper presents a robust fault reconstruction scheme for a class of nonlinear descriptor systems that is affected by disturbances. The fault enters the system both linearly and through nonlinear functions in both the state and output equations. The system is first re-expressed into a form which is easier to manipulate. Two cases are considered: in the first case, the fault is present in the nonlinear function of the output equation, whereas in the second case, the nonlinear function of the output equation does not contain the fault. In each case, a nonlinear descriptor observer is used to reconstruct the fault, where the gains of the observer are designed using linear matrix inequalities such that the effect of disturbances on the fault reconstruction is bounded. As a result of their structure, the proposed descriptor observers do not require restrictions on the rates of the input and disturbances (unlike in observers using a state-space structure) which makes the proposed observers more widely applicable. Finally, two simulation examples are performed to verify the performance of the proposed observers.
( Chen Wang Chang ),( Shu Chen Wei ),( Jen Wei Chou ),( Tzu Chi Hsu ),( Chiao Hsiung Chuang ),( Ching Pin Lin ),( Wen Hung Hsu ),( Hsu Heng Yen ),( Jen Kou Lin ),( Yi Jen Fang ),( Horng Yuan Wang ),( 대한장연구학회 2014 Intestinal Research Vol.12 No.4
Background/Aims: Only moderate to severe Crohn`s Disease (CD) patients without a satisfactory conventional therapy effect are eligible to get reimbursement from the National Health Insurance of Taiwan for using adalimumab. These are more stringent criteria than in many Western countries and Japan and Korea. We aim to explore the efficacy of using adalimumab in CD patients under such stringent criteria. Methods: A retrospective analysis was conducted in nine medical centers in Taiwan and we collected the results of CD patients receiving adalimumab from Sep 2009 to Mar 2014. The clinical characteristics, response measured by CDAI (Crohn`s Disease Activity Index), adverse events and survival status were recorded and analyzed. CR-70, CR-100, and CR-150 were defined as attaining a CDAI decrease of 70, 100 or 150 points compared with baseline. Results: A total of 103 CD patient records were used in this study. Sixty percent of these patients received combination therapy of adalimumab together with immunomodulators. CR-70 was 68.7%, 74.5% and 88.4% after week 4, 8 and 12 of treatment, respectively. The steroid-free rate, complications and survival were 47.6%, 9.7% and 99% of patients, respectively. In considering the mucosal healing, only 25% patients achieve mucosal healing after treatment for 6 to12 months. Surgery was still needed in 16.5% of patients. Combination treatment of adalimumab with immunomodulators further decreased the level of CDAI at week 8 when compared with the monotherapy. Conclusions: Even under the stringent criteria for using adalimumab, the response rate was comparable to those without stringent criteria. (Intest Res 2014;12:287-292)
Xylitol fermentation by Candida subtropicalis WF79 immobilized in polyacrylic hydrogel films
Chee-Shan Chen,Wen-Chang Liaw,Wen-Shion Chang,Kuan-Pin Chen,Yee-Fan Chen 한국화학공학회 2008 Korean Journal of Chemical Engineering Vol.25 No.5
Polyacrylate hydrogel films were used as immobilization matrices for cell entrapment of the yeast strain, Candida subtropicalis WF79, isolated from sugarcane bagasse. The hydrogel films with immobilized viable yeast cells were employed for the bioconversion from xylose to xylitol. The hydrogel was prepared from the monomers of 2-hydroxyethyl methacrylate (HEMA), methacrylic acid (MAA), and N,N-dimethyl acrylamide (DMA) with polyethylene glycol diacrylate (PEG-DA, weight-average molecular weight Mw=400 and 1,000 g/mol) as the crosslinking agent. The mechanical properties and fermentation yields of the immobilized polyacrylate hydrogel film with different monomeric formulation were investigated. Fermentation was carried out in a medium of 100 mL aqueous solution containing various amount of xylose. The conversion rate of xylose to xylitol conversion reached a maximum value of 80% after 120 h. The bioconversion activity gradually declined, after 720 h, to 65% conversion at 1,080 h
Analysis and Comparison of EE-type and CC-type Cores for Wireless Power Transfer Systems
Chung-Chuan Hou,Yu-Hsiang Teng,Wen-Pin Chang,Kuei-Yuan Chang 전력전자학회 2015 ICPE(ISPE)논문집 Vol.2015 No.6
This study presents a wireless power transfer (WPT) system based on EE-type and CC-type ferrite cores. The push-pull converter is utilized to transfer the power to the secondary side load with a parallel resonant capacitor. The issues of the WPT such as efficiency and air gap are discussed. The analysis and comparison of the EE-type and CC-type cores based on test results is discussed.
Quadrature Oscillators with Grounded Capacitors and Resistors Using FDCCIIs
Jiun-Wei Horng,Chun-Li Hou,Chun-Ming Chang,Hung-Pin Chou,Chun-Ta Lin,Yao-Hsin Wen 한국전자통신연구원 2006 ETRI Journal Vol.28 No.4
Two current-mode and/or voltage-mode quadrature oscillator circuits each using one fully-differential secondgeneration current conveyor (FDCCII), two grounded capacitors, and two (or three) grounded resistors are presented. In the proposed circuits, the current-mode quadrature signals have the advantage of high-output impedance. The oscillation conditions and oscillation frequencies are orthogonally (or independently) controllable. The current-mode and voltage-mode quadrature signals can be simultaneously obtained from the second proposed circuit. The use of only grounded capacitors and resistors makes the proposed circuits ideal for integrated circuit implementation. Simulation results are also included.