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Multiple dependent state repetitive sampling plans based on one-sided process capability indices
Yen, Ching-Ho,Chang, Chia-Hao,Aslam, Muhammad,Jun, Chi-Hyuck Informa UK (TaylorFrancis) 2018 Communications in Statistics Vol.47 No.6
<P>In this research, multiple dependent state and repetitive group sampling are used to design a variable sampling plan based on one-sided process capability indices, which consider the quality of the current lot as well as the quality of the preceding lots. The sample size and critical values of the proposed plan are determined by minimizing the average sample number while satisfying the producer's risk and consumer's risk at corresponding quality levels. In addition, comparisons are made with the existing sampling plans [Pearn and Wu (2006a), Yen etal. (2015)] in terms of average sample number and operating characteristic curve. Finally, an example is provided to illustrate the proposed plan.</P>
An Internet Based Embedded Network Monitoring System for Renewable Energy Systems
Po-Yen Chen,Se-Kang Ho,Wei-Jen Lee,Chia-Chi Chu,Ching-Tsa Pan 전력전자학회 2007 ICPE(ISPE)논문집 Vol.- No.-
In this paper, an internet based embedded network monitoring system is proposed for renewable energy systems. By using a low cost network communication module (RCM 3700) as a web server, one can achieve better network security, lower power consumption, compact size, and easier to use as compared with a PC based one. Also, Java language is chosen for designing a dynamic webpage to graphically display various real time waveforms of the controlled system for multi-user at the same time. As an illustrative example, a small scale wind power generation system equipped with an EZDSP 2812 controller is adopted for demonstration. In addition, an FPGA EC10 is implemented as a bidirectional communication interface for coordinating the asynchronous data transmission modes. Experimental results from the constructed prototype verify that the proposed monitoring system can indeed achieve the desired function.
Qiao Dongkai,Ho Chia-Chieh,Ho Ching-Yen,Chen Bor-Chyuan,Wen Mao-Yu 한국물리학회 2020 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.77 No.10
The variation of the specific power-loss with the anisotropy constant takes an approximately exponential form when magnetic nanoparticles (MNPs) are subjected to external alternating magnetic fields, and the distribution of the specific power-loss along the anisotropy constant shifts with temperature. Furthermore, the rate of increase in the temperature of MNPs used for hyperthermia depends significantly on the specific power-loss. Hence, the temperature characteristics of hyperthermia are affected by the specific power-loss. In this work, we develop a thermal model to analyze the effect of specific power-loss on temperature characteristics in MNPs uses for tumor hyperthermia. The results predicted by using the thermal model in this study are consistent with the available experimental data. The rate of increase of the temperature evidently varies at different temperatures due to different specific power-losses. An abrupt temperature rise occurs at the highest value in the distribution of the specific power-loss versus anisotropy constant. On the other hand, a slow temperature rise occurs when the intersection between the anisotropy constant of the MNPs and the specific power-loss distribution along the anisotropy constant at a some certain temperature corresponds with low specific power-loss.
Creatine Kinase (CK)-MB-to-Total-CK Ratio: a Laboratory Indicator for Primary Cancer Screening
Chang, Chih-Chun,Liou, Ching-Biau,Su, Ming-Jang,Lee, Yi-Chen,Liang, Chai-Ting,Ho, Jung-Li,Tsai, Huang-Wen,Yen, Tzung-Hai,Chu, Fang-Yeh Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.15
Background: For the determination of creatine kinase (CK)-MB, the immunoinhibition method is utilized most commonly. However, the estimated CK-MB activity may be influenced by the presence of CK isoenzymes in some conditions like cancer. Thus, a CK-MB-to-total-CK ratio more than 1.0 could be found in such a situation. The study aimed to explore the relationship of cancer to high CK-MB-to-total-CK ratio. Materials and Methods: From January 2011 to December 2014, laboratory data on all CK-MB and total CK test requests were extracted at Far Eastern Memorial Hospital (88,415 requests). Patients with a CK-MB-to-total-CK ratio more than 1.0 were registered in this study. Clinical data including tumor location, tumor TNM stage and metastatic status were also collected. Results: A total of 846 patients were identified with a CK-MB-to-total-CK ratio more than 1.0. Of these, 339 (40.1%) were diagnosed with malignancies. The mean CK-MB-to-total-CK ratio was significantly higher in malignancy than in non-malignancy ($1.35{\pm}0.28$ vs $1.25{\pm}0.23$, p<0.001) groups. The most frequent malignancy with a CK-MB-to-total-CK ratio more than 1.0 was colorectal cancer ($1.42{\pm}0.28$, 16.5%, n=56), followed by lung cancer ($1.38{\pm}0.24$, 15.9%, n=54) and hepatocellular carcinoma (14.5%, n=49). Higher CK-MB-to-total-CK ratios in hematological malignancies ($1.44{\pm}0.41$)were also noted. Additionally, the CK-MB-to-total-CK ratio was markedly higher in advanced stage malignancy than in early stage ($1.37{\pm}0.26$ vs. $1.29{\pm}0.31$, p=0.014) and significantly higher in liver metastasis than in non-liver metastasis ($1.48{\pm}0.30$ vs. $1.30{\pm}0.21$, p<0.001). Conclusions: The CK-MB-to-total-CK ratio is an easily available indicator and could be clinically utilized as a primary screening tool for cancer. Higher ratio of CK-MB-to-total-CK was specifically associated with certain malignancies, like colorectal cancer, lung cancer and hepatocellular carcinoma, as well as some cancer-associated status factors such as advanced stage and liver metastasis.