Taichung, Taiwan

Chaoyang University of Technology is a university in Wufeng District, Taichung, Taiwan. Founded in 1994. Originally named Chaoyang Institute of Technology. In 1997, CYUT was designated by the Ministry of Education as a University of Technology, the highest level in the technological and vocational education system within the R.O.C.Currently, the University comprises 5 colleges and 22 departments, which offer 19 master's programs and 5 doctoral programs. The number of students currently enrollment is around 17,000, and the faculty and staff is about 1,000 in total. CYUT’s excellent teachers and facilities have been readily receiving recognition. With its goal of becoming a large type of institution of higher learning. Wikipedia.


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Chen L.-H.,Chaoyang University of Technology
Computers and Education | Year: 2010

To consider how Web-based learning program is utilized by learners with different cognitive styles, this study presents a Web-based learning system (WBLS) and analyzes learners' browsing data recorded in the log file to identify how learners' cognitive styles and learning behavior are related. In order to develop an adapted WBLS, this study also proposes a design model for system designers to tailor the preferences linked with each cognitive style. The samples comprise 105 third-grade Accounting Information System course students from a technology university in central Taiwan. Analytical results demonstrate that learners with different cognitive styles have similar but linear learning approaches, and learners with different cognitive styles adopt different navigation tools to process learning. © 2009 Elsevier Ltd. All rights reserved.


Chiu S.W.,Chaoyang University of Technology
Computers and Operations Research | Year: 2010

This study is concerned with robust planning in optimization, specifically in determining the optimal run time for production system that is subject to random breakdowns under abort/resume (AR) control policy and failure in rework. In most real-life production processes, generation of defective items and breakdowns of manufacturing equipment are inevitable. In this study, random defective rate is assumed and all manufactured items are screened. The perfect quality, reworkable and scrap items are identified and separated; failure-in-rework is assumed. The system is also subject to random machine breakdown; and when it occurs, the AR policy is adopted. Under such policy, the production of the interrupted lot will be immediately resumed when the machine is restored. Mathematical modeling and derivation of the production-inventory cost functions for both systems with/without breakdowns are presented. The renewal reward theorem is used to cope with the variable cycle length when integrating cost functions. The long-run average cost per unit time is obtained. Theorems on convexity and on bounds of production run time are proposed and proved. A recursive searching algorithm is developed for locating the optimal run time that minimizes the expected production-inventory costs. A numerical example with sensitivity analysis is provided to give insight into the optimal operational control of such an unreliable system. © 2009 Elsevier Ltd. All rights reserved.


Hsieh F.-S.,Chaoyang University of Technology
Decision Support Systems | Year: 2010

Recently, researchers have proposed decision support tool for generating suggestions for bids in combinatorial reverse auction based on disclosure of bids. An interesting issue is to design an effective mechanism to guide the bidders to collectively minimize the overall cost without explicitly disclosing the bids. We consider a winner determination problem for combinatorial reverse auction and study how to support the bidders' decisions without explicitly disclosing the bids of others. We propose an information revelation scheme for a buyer to guide the sellers to generate potential winning bids to minimize the overall cost. The main results include: (1) a problem formulation for the combinatorial reverse auction problem; (2) a solution methodology based on Lagrangian relaxation; (3) a scheme to guide the sellers to generate potential winning bids for the bidders in multi-round combinatorial reverse auctions based on revelation of Lagrangian multipliers; (4) a heuristic algorithm for finding a near-optimal feasible solution and (5) results and analysis of our solution algorithms. © 2009 Elsevier B.V. All rights reserved.


Chen L.-H.,Chaoyang University of Technology
Computers and Education | Year: 2011

Although conventional student assessments are extremely convenient for calculating student scores, they do not conceptualize how students organize their knowledge. Therefore, teachers and students rarely understand how to improve their future learning progress. The limitations of conventional testing methods indicate the importance of accurately assessing and representing student knowledge structures. The personalized diagnosis and remedial learning system (PDRLS) proposed in this study enhances the effectiveness of the Pathfinder network by providing remedial learning paths for individual learners based on their knowledge structure. The sample was 145 students enrolled in introductory JAVA programming language courses at a Central Taiwan technology university. The experimental results demonstrate that learners who received personalized remedial learning guidance via PDRLS achieved improved learning performance, self-efficacy, and PDRLS use intention. The experimental results also indicated that students with lower knowledge level gain more benefits from the PDRLS than those with higher level of knowledge and that field dependence (FD) students obtain a greater benefit from PDRLS than field independence (FI) students do. © 2010 Elsevier Ltd. All rights reserved.


Ko H.-C.,Chaoyang University of Technology
Electronic Commerce Research and Applications | Year: 2013

The popularity and growth of social networking sites (SNSs) have resulted in fierce competition among SNS providers. A critical concern of SNSs is to identify how to have users continuously use a specific SNS. This study examines the determinants of journal-type bloggers' continuous self-disclosure. An analysis of 283 samples with continuous self-disclosure experiences in journal-type blogs shows that personal factors, specifically the habit of self-disclosure, are the major factors affecting bloggers' continuous self-disclosure, followed by self-benefits. In contrast, social factors, such as positive audience feedback and social benefits, are not related to continuous self-disclosure. These results suggest that SNS providers must encourage users to develop the habit of using their web sites regularly. By providing differential benefits to users, SNS providers may attract users to continuously use their services. © 2012 Elsevier B.V. All rights reserved.


Chang Y.-H.,Chaoyang University of Technology
IEEE Transactions on Circuits and Systems I: Regular Papers | Year: 2011

An interleaved scheme of variable-conversion-ratio (VCR) multistage switched-capacitor-voltage-multiplier/divider (SCVM/SCVD) converter is proposed by combining a VCR-based phase generator and pulse-width-modulation (PWM) controller to integrate step-up and down modes in one structure for high-efficiency conversion. The power part consists of two m c-stage SC cells (front) and two n c-stage SC cells (rear) in series for step-up/down gain of m c ×n c or 1/(m c×n c) at most. Here, VCR-based phase generator is suggested with changing the running stage number m,n and topological path to obtain a suitable gain of m×n or 1/(m×n) (m=1,2,...,m c, n=1,2,...,n c) for improving efficiency, especially for the lower desired output. Besides, PWM is adopted to enhance output regulation as well as robustness to source/loading variation. Further, some theoretical analysis and design include: formulation, steady-state analysis, conversion ratio, efficiency, output ripple, stability, capacitance selection, and control design. Finally, the closed-loop SCVM/SCVD is simulated, and the hardware is implemented and tested. All results are illustrated to show the efficacy of this scheme. © 2011 IEEE.


Chang Y.-H.,Chaoyang University of Technology
IEEE Transactions on Circuits and Systems I: Regular Papers | Year: 2011

A closed-loop multistage (n -stage) multiphase (p -phase) switched-capacitor boost dcac inverter (MPSCI) is proposed by combining a variable-phase control (VPC) and sinusoidal pulsewidth-modulation (SPWM) technique for low-power step-up inversion/regulation. Its power stage contains two parts: an MPSC booster (front) and an H-bridge (rear). An n-stage p-phase MPSC is for an inductor-less boost dcdc conversion, where n voltage doublers are in series for boosting voltage gain up to 2n at most. For improving efficiency, VPC is suggested to realize a variable multiphase operation by changing phase number p and topological path for more suitable gain level. An H-bridge is employed for dc-ac conversion, where four switches are controlled by SPWM not only for full-wave operation, but also for enhancing output regulation as well as robustness to source/loading variation. The analysis and design include an MPSCI model, steady-state/dynamic analysis, conversion ratio, power efficiency, stability, capacitance selection, total harmonic distortion (THD), filter, and control design. Finally, the closed-loop MPSCI is simulated, and the hardware is implemented and tested. All results are illustrated to show the efficacy of the proposed scheme. © 2010 IEEE.


Patent
Chaoyang University of Technology | Date: 2014-09-10

In a method for quick-search of loci-of-interest in a gene sequence of a target biological virus, a computer executes a phylogenetic algorithm to generate phylogenetic tree information, which is generated based on a selected gene segment of the target biological virus and a corresponding gene segment of each of related biological viruses. A set of to-be-matched biological viruses is determined based on the phylogenetic tree information. A computer matches the gene sequences of the to-be-matched biological viruses in the set so as to find the loci-of-interest in the gene sequence of the target biological virus.


Patent
Chaoyang University of Technology | Date: 2011-12-27

This subject invention is directed to a method for inhibition of cancer cells, comprising administrating an effective amount of a compound of formula I (Sesquiterpene lactones, antrocin) or pharmaceutically acceptable salts thereof, together with a pharmaceutically acceptable carrier, wherein the cancer cells are selected from colorectal cancer cells, liver cancer cells, lung cancer cells or breast cancer cells.


Patent
Chaoyang University of Technology | Date: 2015-04-29

The present disclosure discloses a chemical oxygen demand detection apparatus. In the apparatus, a working electrode, which is included TiO_(2 )nanotube arrays electrode between 1800-2500 nm in length, is excited the photoelectrocatalysis reaction thereon by a single wavelength UV-LED module and an electrochemical analysis module. A fixing holder is configured to fix a three-electrode module and the UV-LED module to immerse in sample. An electrochemical analysis module, which electrical connect to the three-electrode module, is configured to receive a time-dependent current signal and integrates time-dependent current signal to get total electric charge, and generates a detecting result to indicate chemical oxygen demand value of sample.

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