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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.
Chien-Liang Liu,Ming-Jen Chen,Jiunn-Chang Lin,Chi-Hsin Lin,Wen-Chien Huang,Shih-Ping Cheng,Shan-Na Chen,Yuan-Ching Chang 한국유방암학회 2019 Journal of breast cancer Vol.22 No.2
Purpose: Cancer cells develop acquired resistance induced by chemotherapeutic drugs. In this study, we investigated the effects of brief treatment with cytotoxic drugs on the phenotype of breast cancer cells. Methods: Breast cancer cells MCF7 and BT-474 were briefly treated with paclitaxel or doxorubicin. Clonogenic, migration, and invasion assays were performed on the treated cells. Western blot analysis and RhoA activity assay were also performed. Results: Breast cancer cells when briefly treated with paclitaxel or doxorubicin showed reduced clonogenic ability. Doxorubicin, but not paclitaxel, augmented cell migration and invasion. The invasion-promoting effects of doxorubicin were lost when the two drugs were sequentially used in combination. Myosin light chain (MLC) 2 phosphorylation and RhoA activity were upregulated by doxorubicin and downregulated by paclitaxel. Pretreatment with RhoA inhibitors abolished the migration- and invasion-promoting effects of doxorubicin. Conclusion: Doxorubicin activates the RhoA/MLC pathway and enhances breast cancer cell migration and invasion. Therefore, this pathway might be explored as a therapeutic target to suppress anthracycline-enhanced tumor progression.
Effects of Wedge Visual Support on User Wayfinding Behavior within a Virtual Environment
Chien-Hsiung Chen,Shih-Chieh Chen,Yu-Chang Huang 대한인간공학회 2014 대한인간공학회 학술대회논문집 Vol.2014 No.5
The purpose of this study is to investigate 2D wedge visual support design used in a 3D virtual environment pertinent to user wayfinding behavior. The independent variables adopted for the experiment are interaction mode (i.e., touch sensitive vs. body movement), viewing perspective (the first-person vs. the third-person), and gender (male vs. female). A total of 56 participants (28 males and 28 females) were recruited to take part in the wayfinding task experiment by convenient sampling method. The results generated from the experiment revealed that: (1) The participant who conducted touch sensitive interaction mode performed better than those who used body movement interaction mode due to better interaction flow. (2) The participant who adopted the third-person perspective performed better than those who adopted the first-person perspective. (3) The gender effect indicated that males performed better than females under the perceptual information followed by abstract information (P-A) type of task. It is concluded that within a 3D virtual environment, users who adopt touch sensitive mode with the third-person perspective can perform better wayfinding behavior.
Shih-Meng Hsu,Jun-Pu Hsu,Chien-Chung Ke,Yen-Tsu Lin,Chi-Chao Huang 한국지질과학협의회 2020 Geosciences Journal Vol.24 No.2
This study proposes an application of the classical rock mass classification concept on the estimation of in situ hydraulic conductivity of regolith and fractured bedrock which can be utilized to evaluate groundwater potential in mountainous areas. On the basis of boring logs, borehole televiewer image data, and double packer hydraulic test data conducted in the Basin of Jhuoshuei River of central Taiwan with the aid of bivariate analysis, two rock mass permeability classification systems (Hydro-Potential value for Regolith (HPR) and Hydro-Potential value for Bedrock (HPB) System) were developed. By regression analysis, the dependence of HPB/HPR on in situ hydraulic conductivity was performed, and two empirical models for estimating in situ hydraulic conductivity were derived. Meanwhile, two derived models were validated through the comparison against results from other types of hydraulic test data (pumping and single packer tests). Therefore, the development of the empirical models for a groundwater-related project enables to help the planning of detailed investigations for the determination of hydraulic conductivity with cost-effectiveness.
Shih-Hsien Yang,Hery Awan Susanto,Chien-Ting Kao,Chien-Wei Huang 한국도로학회 2018 한국도로학회 학술대회 발표논문 초록집 Vol.2018 No.05
The purpose of this study was to investigate the feasibility of converting the results obtained using different rutting performance tests. The correlation between the three simulation tests was analysed to determine the conversion coefficient factor. Two parameters (temperature and speed of simulation testing) were evaluated in this study. The results of this study have shown that the values obtained in the SALS test were lower than those obtained in the HWTT and UKWTT. The conversion of the SALS test results to the HWTT results yielded a good propensity value. The temperature is important parameter for determining the conversion coefficient factor.
( Chien Hsiung Chen ),( Shih Chieh Chen ),( Yu Chang Huang ) 한국감성과학회 2014 춘계학술대회 Vol.2014 No.-
The purpose of this study is to investigate 2D wedge visual support design used in a 3D virtual environment pertinent to user wayfinding behavior. The independent variables adopted for the experiment are interaction mode (i.e., touch sensitive vs. body movement), viewing perspective (the first-person vs. the third-person), and gender (male vs. female). A total of 56 participants (28 males and 28 females) were recruited to take part in the wayfinding task experiment by convenient sampling method. The results generated from the experiment revealed that: (1) The participant who conducted touch sensitive interaction mode performed better than those who used body movement interaction mode due to better interaction flow. (2) The participant who adopted the third-person perspective performed better than those who adopted the first-person perspective. (3) The gender effect indicated that males performed better than females under the perceptual information followed by abstract information (P-A) type of task. It is concluded that within a 3D virtual environment, users who adopt touch sensitive mode with the third-person perspective can perform better wayfinding behavior.
Resource Management in 5G Mobile Networks: Survey and Challenges
Wei-Che Chien,Shih-Yun Huang,Chin-Feng Lai,Han-Chieh Chao 한국정보처리학회 2020 Journal of information processing systems Vol.16 No.4
With the rapid growth of network traffic, a large number of connected devices, and higher application services, the traditional network is facing several challenges. In addition to improving the current network architecture and hardware specifications, effective resource management means the development trend of 5G. Althoughmany existing potential technologies have been proposed to solve the some of 5G challenges, such as multipleinput multipleoutput (MIMO), softwaredefined networking (SDN), network functions virtualization (NFV), edge computing, millimeterwave, etc., research studies in 5G continue to enrich its function and move toward B5G mobile networks. In this paper, focusing on the resource allocation issues of 5G core networks and radio access networks, we address the latest technological developments and discuss the current challenges for resource management in 5G.