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250 results on '"Wang, Zhi-Zhong"'

2. Correction: An analysis of age-standardized suicide rates in Muslim-majority countries in 2000-2019

Author

Lew, Bob, Lester, David, Kõlves, Kairi, Yip, Paul S. F., Chen, Ying-Yeh, Chen, Won Sun, Hasan, M. Tasdik, Koenig, Harold G., Wang, Zhi Zhong, Fariduddin, Muhamad Nur, Zeyrek-Rios, Emek Yuce, Chan, Caryn Mei Hsien, Mustapha, Feisul, Fitriana, Mimi, Dolo, Housseini, Gönültaş, Burak M., Dadfar, Mahboubeh, Davoudi, Mojtaba, Abdel-Khalek, Ahmed M., Chan, Lai Fong, Siau, Ching Sin, and Ibrahim, Norhayati

Published
2022
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3. An analysis of age-standardized suicide rates in Muslim-majority countries in 2000-2019

Author

Lew, Bob, Lester, David, Kõlves, Kairi, Yip, Paul S. F., Chen, Ying-Yeh, Chen, Won Sun, Hasan, M. Tasdik, Koenig, Harold G., Wang, Zhi Zhong, Fariduddin, Muhamad Nur, Zeyrek-Rios, Emek Yuce, Chan, Caryn Mei Hsien, Mustapha, Feisul, Fitriana, Mimi, Dolo, Housseini, Gönültaş, Burak M., Dadfar, Mahboubeh, Davoudi, Mojtaba, Abdel-Khalek, Ahmed M., Chan, Lai Fong, Siau, Ching Sin, and Ibrahim, Norhayati

Published
2022
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4. Community detection based on significance optimization in complex networks

Author

Xiang, Ju, Wang, Zhi-Zhong, Li, Hui-Jia, Zhang, Yan, Li, Fang, Dong, Li-Ping, and Li, Jian-Ming

Subjects
Physics - Physics and Society, Computer Science - Social and Information Networks, Physics - Data Analysis, Statistics and Probability
Abstract

Community structure is an important structural property that extensively exists in various complex networks. In the past decade, much attention has been paid to the design of community-detection methods, but analyzing the behaviors of the methods is also of interest in the theoretical research and real applications. Here, we focus on an important measure for community structure, significance [Sci. Rep. 3 (2013) 2930]. Specifically, we study the effect of various network parameters on this measure in detail, analyze the critical behaviors of it in partition transition, and analytically give the formula of the critical points and the phase diagrams. The results shows that the critical number of communities in partition transition increases dramatically with the difference between inter- and intra-community link densities, and thus significance optimization displays higher resolution in community detection than many other methods, but it is also easily to lead to the excessive splitting of communities. By Louvain algorithm for significance optimization, we confirmed the theoretical results on artificial and real-world networks, and give a series of comparisons with some classical methods.

Published
2017
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17. Additional file 1 of An analysis of age-standardized suicide rates in Muslim-majority countries in 2000-2019

Author

Lew, Bob, Lester, David, Kõlves, Kairi, Yip, Paul S. F., Chen, Ying-Yeh, Chen, Won Sun, Hasan, M. Tasdik, Koenig, Harold G., Wang, Zhi Zhong, Fariduddin, Muhamad Nur, Zeyrek-Rios, Emek Yuce, Chan, Caryn Mei Hsien, Mustapha, Feisul, Fitriana, Mimi, Dolo, Housseini, Gönültaş, Burak M., Dadfar, Mahboubeh, Davoudi, Mojtaba, Abdel-Khalek, Ahmed M., Chan, Lai Fong, Siau, Ching Sin, and Ibrahim, Norhayati

Abstract

Additional file 1: Fig S1. Age-standardized suicide rate in Muslim-majority countries in 2000-2019 and comparison with the global average.

Published
2022
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21. A 0.5V True-Single-Phase 16T Flip-Flop in 180-nm CMOS for IoT Applications

Author

Yi-Hsuan Hung, Wang Zhi-Zhong, Jin-Fa Lin, Zheng-Jie Hong, and Jun-Ting Wu

Subjects
Scheme (programming language), business.industry, Computer science, Electrical engineering, Master/slave, law.invention, Power (physics), CMOS, law, Hardware_INTEGRATEDCIRCUITS, Hybrid logic, business, computer, Low voltage, Flip-flop, Energy (signal processing), Hardware_LOGICDESIGN, computer.programming_language
Abstract

A low voltage and low power true-single-phase flip-flop (FF) design using 16-transistor only is proposed. It is adapted from conventional master-slave based design and reduces layout area by using hybrid logic scheme. Optimization measures have resulted in a new FF with better power and area performances. Based on simulation results using the TSMC CMOS 180nm, our design achieves the conventional TGFF design by 67.3% in energy and 30.8% in layout area.

Published
2021

49. Detecting ventricular tachycardia and fibrillation by complexity measure

Author

Zhang, Xu-Sheng, Zhu, Yi-Sheng, Thakor, Nitish V., and Wang, Zhi-Zhong

Subjects
Ventricular tachycardia -- Diagnosis, Ventricular fibrillation -- Diagnosis, Arrhythmia -- Diagnosis, Defibrillators -- Research, Computational complexity -- Research, Biological sciences, Business, Computers, Health care industry
Abstract

Sinus rhythm (SR), ventricular tachycardia (VT) and ventricular fibrillation (VF) belong to different nonlinear physiological processes with different complexity. In this study, we present a novel, and computationally fast method to detect VT and VF, which utilizes a complexity measure suggested by Lempel and Ziv [1]. For a specific window length (i.e., the length of data segment to be analyzed), the method first generates a 0-1 string by comparing the raw electrocardiogram (ECG) data to a selected suitable threshold. The complexity measure can be obtained from the 0-1 string only using two simple operations, comparison and accumulation. When the window length is 7 s, the detection accuracy for each of SR, VT, and VF is 100% for a test set of 204 body surface records (34 SR, 85 monomorphic VT, and 85 VF). Compared with other conventional time- and frequency-domain methods, such as rate and irregularity, VF-filter leakage, and sequential hypothesis testing, the new algorithm is simple, computationally efficient, and well suited for real-time implementation in automatic external defibrillators (AED's). Index Terms - Arrhythmia detection, automatic external defibrillators, complexity measure, ventricular fibrillation.

Published
1999

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