155 results on '"Chien-Chih Lin"'
Search Results
2. Optimization of mechanical properties of bio-inspired Voronoi structures by genetic algorithm
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Cheng-Che Tung, Yu-Yi Lai, Yan-Zhen Chen, Chien-Chih Lin, and Po-Yu Chen
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Voronoi ,Genetic algorithm ,Optimization ,Mechanical properties ,Mining engineering. Metallurgy ,TN1-997 - Abstract
Numerous patterns in nature comprise aesthetics structures and intriguing geometries. The geometric factors behind these patterns include area, aspect ratio, circularity, orientation, and regularity. In this study, the quasi-3D porous structures with varying regularities were systematically described and generated by the Voronoi segmentation. Then, genetic algorithms were applied to optimize the mechanical properties of these structures under tension condition. The image-based finite element simulation could calculate each structure's fitness value (strength). Afterward, structures with higher fitness values were selected and underwent the replication process, including crossover and mutation. New structures were generated based on the input structures. The above steps driven by the genetic algorithms were repeated 30 iterations until the tensile strength of the structures was improved and converged. Both simulation and tensile testing results as well as digital image correlation of specimens fabricated by stereolithography 3D printing showed that the Voronoi structures optimized by the genetic algorithm could enhance their stiffness, strength, and toughness values by ∼30%. This research has the potential to be applied in the fields of structural materials and biomimetic micro-aerial vehicles, which require lightweight, strength, and toughness simultaneously.
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- 2023
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3. Structures of honeybee-infecting Lake Sinai virus reveal domain functions and capsid assembly with dynamic motions
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Nai-Chi Chen, Chun-Hsiung Wang, Masato Yoshimura, Yi-Qi Yeh, Hong-Hsiang Guan, Phimonphan Chuankhayan, Chien-Chih Lin, Pei-Ju Lin, Yen-Chieh Huang, Soichi Wakatsuki, Meng-Chiao Ho, and Chun-Jung Chen
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Science - Abstract
Viruses can cause Colony Collapse Disorder, leading to large losses of honeybee hives globally. In this study, the authors solve capsid structures of honeybee-infecting Lake Sinai viruses and identify distinct features, which advances understanding of viral dynamics, assembly and infection mechanisms.
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- 2023
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4. Target Positioning and Tracking in WSNs Based on AFSA
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Shu-Hung Lee, Chia-Hsin Cheng, Chien-Chih Lin, and Yung-Fa Huang
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WSNs ,target positioning ,target tracking ,AFSA ,region segmentation method ,Information technology ,T58.5-58.64 - Abstract
In wireless sensor networks (WSNs), the target positioning and tracking are very important topics. There are many different methods used in target positioning and tracking, for example, angle of arrival (AOA), time of arrival (TOA), time difference of arrival (TDOA), and received signal strength (RSS). This paper uses an artificial fish swarm algorithm (AFSA) and the received signal strength indicator (RSSI) channel model for indoor target positioning and tracking. The performance of eight different method combinations of fixed or adaptive steps, the region segmentation method (RSM), Hybrid Adaptive Vision of Prey (HAVP) method, and a Dynamic AF Selection (DAFS) method proposed in this paper for target positioning and tracking is investigated when the number of artificial fish is 100, 72, 52, 24, and 12. The simulation results show that using the proposed HAVP total average positioning error is reduced by 96.1%, and the positioning time is shortened by 26.4% for the target position. Adopting HAVP, RSM, and DAFS in target tracking, the positioning time can be greatly shortened by 42.47% without degrading the tracking success rate.
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- 2023
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5. Structural insights into the histidine-containing phosphotransfer protein and receiver domain of sensor histidine kinase suggest a complex model in the two-component regulatory system in Pseudomonas aeruginosa
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Shao-Kang Chen, Hong-Hsiang Guan, Pei-Hsun Wu, Li-Ting Lin, Meng-Chun Wu, Hwan-You Chang, Nai-Chi Chen, Chien-Chih Lin, Phimonphan Chuankhayan, Yen-Chieh Huang, Pei-Ju Lin, and Chun-Jung Chen
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two-component regulatory systems ,sensor histidine kinase ,histidine-containing phosphotransfer proteins ,pseudomonas aeruginosa ,Crystallography ,QD901-999 - Abstract
In Pseudomonas aeruginosa, an important opportunistic pathogen that causes numerous acute and chronic infections, the hybrid two-component system (TCS) regulates the swarming ability and biofilm formation with a multistep phosphorelay, and consists of hybrid-sensor histidine kinase (HK), histidine-containing phosphotransfer protein (Hpt) and response regulator (RR). In this work, two crystal structures of HptB and the receiver domain of HK PA1611 (PA1611REC) of P. aeruginosa have been determined in order to elucidate their interactions for the transfer of the phosphoryl group. The structure of HptB folds into an elongated four-helix bundle – helices α2, α3, α4 and α5, covered by the short N-terminal helix α1. The imidazole side chain of the conserved active-site histidine residue His57, located near the middle of helix α3, protrudes from the bundle and is exposed to solvent. The structure of PA1611REC possesses a conventional (β/α)5 topology with five-stranded parallel β-sheets folded in the central region, surrounded by five α-helices. The divalent Mg2+ ion is located in the negatively charged active-site cleft and interacts with Asp522, Asp565 and Arg567. The HptB–PA1611REC complex is further modeled to analyze the binding surface and interactions between the two proteins. The model shows a shape complementarity between the convex surface of PA1611REC and the kidney-shaped HptB with fewer residues and a different network involved in interactions compared with other TCS complexes, such as SLN1-R1/YPD1 from Saccharomyces cerevisiae and AHK5RD/AHP1 from Arabidopsis thaliana. These structural results provide a better understanding of the TCS in P. aeruginosa and could potentially lead to the discovery of a new treatment for infection.
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- 2020
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6. Characterization of Dimeric Interactions within Protrusion-Domain Interfaces of Parallel and X‑Shaped Conformations of Macrobrachium rosenbergii Nodavirus: A Theoretical Study Using the DFT Method along with QTAIM and NBO Analyses
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Elahe K. Astani, Nai-Chi Chen, Yen-Chieh Huang, Sara Ersali, Pei-Ju Lin, Hong-Hsiang Guan, Chien-Chih Lin, Phimonphan Chuankhayan, and Chun-Jung Chen
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Chemistry ,QD1-999 - Published
- 2020
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7. The Influence of Hedge, Arbitrage, and After-Hours Trading on the Holding Returns of TAIEX Futures
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Chien-Chih Lin, Yuan Chung Lee, Chien-Jen Su, and Pei-Ling Lin
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non-trading effect ,hedging demand ,arbitrage ,after-hour trading ,Mathematics ,QA1-939 - Abstract
This study points out a new explanation of the non-trading effect of financial derivatives from the perspective of hedging demand. We examine the influence of hedging demand on the non-trading effect of TAIEX (Taiwan Stock Exchange Capitalization Weighted Stock Index) Futures. By dividing the sample period into trading period and non-trading period and testing the difference between the risk premiums in these two intervals, we find that there is a non-trading effect in TAIEX Futures, which means that the holding returns of TAIEX Futures in the non-trading period are higher than those in the trading period. By estimating a dummy-regression model, the evidence shows that when the VIX (Taiwan Index Option Volatility Index) indicator is relatively high, the non-trading effect will be more significant, indicating that the non-trading effect may come from investors’ hedging needs. In addition, it is found that when the futures index is higher than the spot index, the non-trading effect becomes less obvious. The possible reason is that when there is a positive spread in index futures, investors will expect a bull market, thus reducing the hedging demand of index futures. In the end, we find that the liquidity in the after-hours trading session is poor, resulting in high hedging costs, and forcing investors to hedge during the regular trading period. Therefore, the after-hours trading of TAIEX Futures fails to reduce the non-trading effect.
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- 2023
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8. Crystal Structures of a Piscine Betanodavirus: Mechanisms of Capsid Assembly and Viral Infection.
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Nai-Chi Chen, Masato Yoshimura, Hong-Hsiang Guan, Ting-Yu Wang, Yuko Misumi, Chien-Chih Lin, Phimonphan Chuankhayan, Atsushi Nakagawa, Sunney I Chan, Tomitake Tsukihara, Tzong-Yueh Chen, and Chun-Jung Chen
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Immunologic diseases. Allergy ,RC581-607 ,Biology (General) ,QH301-705.5 - Abstract
Betanodaviruses cause massive mortality in marine fish species with viral nervous necrosis. The structure of a T = 3 Grouper nervous necrosis virus-like particle (GNNV-LP) is determined by the ab initio method with non-crystallographic symmetry averaging at 3.6 Å resolution. Each capsid protein (CP) shows three major domains: (i) the N-terminal arm, an inter-subunit extension at the inner surface; (ii) the shell domain (S-domain), a jelly-roll structure; and (iii) the protrusion domain (P-domain) formed by three-fold trimeric protrusions. In addition, we have determined structures of the T = 1 subviral particles (SVPs) of (i) the delta-P-domain mutant (residues 35-217) at 3.1 Å resolution; and (ii) the N-ARM deletion mutant (residues 35-338) at 7 Å resolution; and (iii) the structure of the individual P-domain (residues 214-338) at 1.2 Å resolution. The P-domain reveals a novel DxD motif asymmetrically coordinating two Ca2+ ions, and seems to play a prominent role in the calcium-mediated trimerization of the GNNV CPs during the initial capsid assembly process. The flexible N-ARM (N-terminal arginine-rich motif) appears to serve as a molecular switch for T = 1 or T = 3 assembly. Finally, we find that polyethylene glycol, which is incorporated into the P-domain during the crystallization process, enhances GNNV infection. The present structural studies together with the biological assays enhance our understanding of the role of the P-domain of GNNV in the capsid assembly and viral infection by this betanodavirus.
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- 2015
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9. T4 Sympathectomy for Palmar Hyperhidrosis: An Effective Approach that Simultaneously Minimizes Compensatory Hyperhidrosis
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Shah-Hwa Chou, Eing-Long Kao, Hsien-Pin Li, Chien-Chih Lin, and Meei-Feng Huang
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hyperhidrosis ,sympathectomy ,Medicine (General) ,R5-920 - Abstract
Compensatory hyperhidrosis (CH) is the most troublesome side effect after T2 sympathectomy for palmar hyperhidrosis (PH). The aim of this study was to evaluate whether T4 ganglion interruption for PH is an effective approach that can simultaneously minimize the rate of CH. Between July 2001 and July 2003, 84 PH patients undergoing bilateral thoracoscopic T4 sympathectomy were followed up in the outpatient clinic and by telephone questionnaire. Rates of success, regret, CH, recurrence, and complications were recorded. The follow-up period ranged from 18 to 42 months. All excessive hand sweating was stopped. Only two patients had mild CH that did not affect their daily activities. No patients had recurrence or regret. The only other complication was that four patients had postoperative minimal residual pneumothorax, which needed no treatment. All patients were satisfied with the outcome. T4 sympathectomy was an effective method to cure PH. The success rate was 100%. The rate of CH was remarkably low compared with T2 sympathetic ganglionic interruption.
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- 2005
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10. Applications of Artificial Fish Swarm Algorithms for Indoor Positioning and Target Tracking.
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Shu-Hung Lee, Chia-Hsin Cheng 0001, Chien-Chih Lin, and Yung-Fa Huang
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- 2023
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11. An Efficient Pattern Recognition Technology for Numerals of Lottery and Invoice.
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Yi-Nung Chung, Ming-Sung Chiu, Chien-Chih Lin, Jhen-Yang Wang, and Chao-Hsing Hsu
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- 2019
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12. Design Monitoring Systems for Multi-channel Technology in Wireless Sensor Networks.
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Chia-Hsin Cheng 0001, Yeong-Long Shiue, Yi Yan, Chien-Chih Lin, and Hsing-Chung Chen
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- 2015
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13. A constitutional contingency: A reply to Zhaoxin Jiang
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Chien-Chih Lin
- Subjects
Law - Abstract
The thesis of the article by Zhaoxin Jiang, “The Untold Leader of Judicial Review: China’s Constitutional Court (1948–71) and the Innovative Constitutionalism,” is highly innovative, and the materials it uses are invaluable to understanding the Council of Grand Justices. Nonetheless, several key contentions of the article are not fully supported by—or indeed are contradicted by—the existing evidence. This Reply provides some competing analyses and interpretations of the three topics in the article: (i) the characterization of the Council at its founding; (ii) the interactions between Chiang Kai-shek and judicial elites; and (iii) the performance of the Council in Taiwan.
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- 2023
14. II Countries and Regions, 24 Constitutional Inertia and Regime Pluralism in Asia
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David S, Law, primary and Chien-Chih, Lin, additional
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- 2018
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15. PSO-Based Target Localization and Tracking in Wireless Sensor Networks
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Shu-Hung Lee, Chia-Hsin Cheng, Chien-Chih Lin, and Yung-Fa Huang
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WSNs ,Computer Networks and Communications ,Hardware and Architecture ,Control and Systems Engineering ,target localization ,Signal Processing ,PSO ,RSSI ,Electrical and Electronic Engineering ,target tracking - Abstract
Research of target localization and tracking is always a remarkable problem in the application of wireless sensor networks (WSNs) technology. There are many kinds of research and applications of target localization and tracking, such as Angle of Arrival (AOA), Time of Arrival (TOA), and Time Difference of Arrival (TDOA). The target localization accuracy for TOA, TDOA, and AOA is better than RSS. However, the required devices in the TOA, TDOA, and AOA are more expensive than RSS. In addition, the computational complexity of TOA, TDOA, and AOA is also more complicated than RSS. This paper uses a particle swarm optimization (PSO) algorithm with the received signal strength index (RSSI) channel model for indoor target localization and tracking. The performance of eight different method combinations of random or regular points, fixed or adaptive weights, and the region segmentation method (RSM) proposed in this paper for target localization and tracking is investigated for the number of particles in the PSO algorithm with 12, 24, 52, 72, and 100. The simulation results show that the proposed RSM method can reduce the number of particles used in the PSO algorithm and improve the speed of positioning and tracking without affecting the accuracy of target localization and tracking. The total average localization time for target localization and tracking with the RSM method can be reduced by 48.95% and 34.14%, respectively, and the average accuracy of target tracking reaches up to 93.09%.
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- 2023
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16. Liberal Democracies
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Chien-Chih Lin
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- 2023
17. PAGE: parallel agile genetic exploration towards utmost performance for analog circuit design.
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Po-Cheng Pan, Hung-Ming Chen, and Chien-Chih Lin
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- 2013
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18. A 15 mW 69 dB 2 Gsamples/s CMOS analog front-end for low-band UWB applications.
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Hua-Chin Lee, Chien-Chih Lin, Chia-Hsin Wu, Shen-Iuan Liu, Chorng-Kuang Wang, and Hen-Wai Tsao
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- 2005
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19. A 65nm dual-band 3-stream 802.11n MIMO WLAN SoC.
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Shahram Abdollahi-Alibeik, David Weber, Hakan Dogan, William W. Si, Burcin Baytekin, Abbas Komijani, Richard Chang 0003, Babak Vakili-Amini, MeeLan Lee, Haitao Gan, Yashar Rajavi, Hirad Samavati, Brian J. Kaczynski, Sang-Min Lee, Sotirios Limotyrakis, Hyunsik Park, Phoebe Chen, Paul Park, Mike Shuo-Wei Chen, Andrew Chang 0002, Yangjin Oh, Jerry Jian-Ming Yang, Eric Chien-Chih Lin, Lalitkumar Nathawad, Keith Onodera, Manolis Terrovitis, Sunetra Mendis, Kai Shi, Srenik S. Mehta, Masoud Zargari, and David K. Su
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- 2011
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20. A wide pull-in range fast acquisition hardware-sharing two-fold carrier recovery loop.
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Ching-Chi Chang, Chien-Chih Lin, Muh-Tian Shiue, and Chorng-Kuang Wang
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- 2001
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21. RESPONSIVE JUDICIAL REVIEW IN TAIWAN.
- Author
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Chien-Chih Lin
- Subjects
JUDICIAL review - Abstract
This ai-ticle argues that the Taiwan Constitutional Court (TCC) practices what Rosalind Dixon calls "responsive judicial review. Depending on the forms of democratic derogation, the TCC has delicately manipulated the strength of judicial review by distinguishing among precedents and by employing various interpretive methods and remedies. Furthermore, the TCC has spared no e#ort in shoring up its legitimacy during its delivery of opinions. Finally, the TCC has also investigated the (non-)compliance of its decisions and adjusted its strategies accordingly. [ABSTRACT FROM AUTHOR]
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- 2023
22. Structural insights into the histidine-containing phosphotransfer protein and receiver domain of sensor histidine kinase suggest a complex model in the two-component regulatory system in Pseudomonas aeruginosa
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Pei Hsun Wu, Yen-Chieh Huang, Hong-Hsiang Guan, Shao-Kang Chen, Chun-Jung Chen, Phimonphan Chuankhayan, Pei-Ju Lin, Meng-Chun Wu, Nai-Chi Chen, Chien-Chih Lin, Hwan-You Chang, and Li-Ting Lin
- Subjects
Saccharomyces cerevisiae ,sensor histidine kinase ,histidine-containing phosphotransfer proteins ,Biochemistry ,Divalent ,03 medical and health sciences ,chemistry.chemical_compound ,Imidazole ,General Materials Science ,lcsh:Science ,Histidine ,030304 developmental biology ,chemistry.chemical_classification ,0303 health sciences ,biology ,two-component regulatory systems ,030302 biochemistry & molecular biology ,Histidine kinase ,General Chemistry ,Condensed Matter Physics ,biology.organism_classification ,Research Papers ,histidine-containing phosphotransfer proteins ,Two-component regulatory system ,Response regulator ,chemistry ,Helix ,Pseudomonas aeruginosa ,Biophysics ,lcsh:Q - Abstract
Two crystal structures of the histidine-containing phosphotransfer protein (HptB) and the receiver domain of the hybrid sensor histidine kinase PA1611 (PA1611REC) in the two-component regulatory system of Pseudomonas aeruginosa have been determined. With the modeled structure of the PA1611REC/HptB complex, the interactions and phosphoryl group transfer between HptB and PA1611REC are elucidated., In Pseudomonas aeruginosa, an important opportunistic pathogen that causes numerous acute and chronic infections, the hybrid two-component system (TCS) regulates the swarming ability and biofilm formation with a multistep phosphorelay, and consists of hybrid-sensor histidine kinase (HK), histidine-containing phosphotransfer protein (Hpt) and response regulator (RR). In this work, two crystal structures of HptB and the receiver domain of HK PA1611 (PA1611REC) of P. aeruginosa have been determined in order to elucidate their interactions for the transfer of the phosphoryl group. The structure of HptB folds into an elongated four-helix bundle – helices α2, α3, α4 and α5, covered by the short N-terminal helix α1. The imidazole side chain of the conserved active-site histidine residue His57, located near the middle of helix α3, protrudes from the bundle and is exposed to solvent. The structure of PA1611REC possesses a conventional (β/α)5 topology with five-stranded parallel β-sheets folded in the central region, surrounded by five α-helices. The divalent Mg2+ ion is located in the negatively charged active-site cleft and interacts with Asp522, Asp565 and Arg567. The HptB–PA1611REC complex is further modeled to analyze the binding surface and interactions between the two proteins. The model shows a shape complementarity between the convex surface of PA1611REC and the kidney-shaped HptB with fewer residues and a different network involved in interactions compared with other TCS complexes, such as SLN1-R1/YPD1 from Saccharomyces cerevisiae and AHK5RD/AHP1 from Arabidopsis thaliana. These structural results provide a better understanding of the TCS in P. aeruginosa and could potentially lead to the discovery of a new treatment for infection.
- Published
- 2020
23. Exploring a Path Model of Cognitive Impairment, Functional Disability, and Incontinence Among Male Veteran Home Residents in Southern Taiwan
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Yung-Yu Su, Chiao-Lee Chu, Ying-Yi Tsai, Chun-Min Chen, and Chien-Chih Lin
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Male ,Gerontology ,Southern taiwan ,Population Dynamics ,Taiwan ,lcsh:Medicine ,Comorbidity ,Physical function ,Article ,03 medical and health sciences ,0302 clinical medicine ,Activities of Daily Living ,Homes for the Aged ,Humans ,Medicine ,Cognitive Dysfunction ,Disabled Persons ,030212 general & internal medicine ,Path analysis (statistics) ,Cognitive impairment ,lcsh:Science ,Geriatric Assessment ,Aged ,Veterans ,Disability ,030219 obstetrics & reproductive medicine ,Multidisciplinary ,business.industry ,lcsh:R ,Institutionalization ,Cognition ,Middle Aged ,Models, Theoretical ,Mental Status and Dementia Tests ,Drug Utilization ,Cognitive training ,Causality ,Cross-Sectional Studies ,Urinary Incontinence ,Socioeconomic Factors ,Risk factors ,Functional disability ,Sample size determination ,Quality of Life ,lcsh:Q ,business ,Fecal Incontinence - Abstract
Most studies focusing on only one directional effect among cognitive health, physical function, and incontinence may miss potential paths. This study aimed to determine the pathway by analyzing the bidirectional effects of exposure (X) on outcome (Y) and explore the mediating effect (M) between X and Y. Secondary data analyses were performed in this study. The original data were collected from August to October 2013 in one VH in Tainan, Taiwan, and the final sample size was 144 older male veterans. Path analysis was performed to test the pathway sequence X → M → Y among the three outcome variables. Approximately 80% of the veterans were aged 81 or older, approximately 42% had a functional disability, 26% had cognitive impairment, and 20% had incontinence. The relationships between functional disability and incontinence and between functional disability and cognition impairment were bidirectional, and functional disability played a key mediating role in the relationship between cognitive impairment and incontinence. Physical more than cognitive training in order to improve or at least stabilize functional performance could be a way to prevent or reduce the process of developing incontinence.
- Published
- 2020
24. Characterization of Dimeric Interactions within Protrusion-Domain Interfaces of Parallel and X-Shaped Conformations of Macrobrachium rosenbergii Nodavirus: A Theoretical Study Using the DFT Method along with QTAIM and NBO Analyses
- Author
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Pei-Ju Lin, Hong-Hsiang Guan, Elahe K. Astani, Chien-Chih Lin, Nai-Chi Chen, Sara Ersali, Phimonphan Chuankhayan, Yen-Chieh Huang, and Chun-Jung Chen
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Physics ,Chemistry ,Crystallography ,General Chemical Engineering ,Macrobrachium rosenbergii nodavirus ,General Chemistry ,QD1-999 ,Article ,Natural bond orbital ,Characterization (materials science) ,Domain (software engineering) - Abstract
The protrusion domain (P-domain; MrNVPd) of Macrobrachium rosenbergii nodavirus (MrNV) exists in two conformations, parallel and X-shaped. We have performed a theoretical study to gain insight into the nature of the dimeric interactions involving the dimeric interfaces within parallel and X-shaped conformations of MrNVPd by applying the quantum theory of atoms in molecules (QTAIM) and natural bond orbital (NBO) analyses in the framework of the density functional theory (DFT) approach. The results reveal that the dimer–dimer interfaces of MrNVPd have hydrogen bonds of common types. Leu255–Lys287, Tyr257–Lys287, Lys287–Ser253, Met294–Cys328, Asp295–Lys327, Ser298–Ser324, Ile326–Asp295, and Cys328–Met294 are the key residue pairs of the dimer–dimer interfaces to maintain the dimer–dimer structures of MrNVPd through charge–charge, charge–dipole, dipole–dipole, hydrophobic, and hydrogen bonding interactions. The strengths of these intermolecular dimer–dimer interactions in the parallel conformation are much greater than those in the X-shaped conformation. The parallel trimeric interface is held basically by electrostatic and hydrophobic interactions. The electrostatic interactions accompanying a strong hydrogen bond of Oγ1–Hγ1···Oγ1 in the Thr276 A–Thr276 D pair maintain the intermolecular interface of two X-shaped MrNVPd dimers.
- Published
- 2020
25. Noncrystallographic symmetry-constrained map obtained by direct density optimization
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Atsushi Nakagawa, Hong Hsiang Guan, Phimonphan Chuankhayan, Nai Chi Chen, Chun-Jung Chen, Chien-Chih Lin, and Masato Yoshimura
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Models, Molecular ,0301 basic medicine ,Electron density ,Icosahedral symmetry ,Structure (category theory) ,twinning ,Crystallography, X-Ray ,010403 inorganic & nuclear chemistry ,01 natural sciences ,03 medical and health sciences ,symbols.namesake ,Penaeidae ,Structural Biology ,Animals ,direct density optimization ,NCS-constrained map ,Physics ,Virion ,Research Papers ,Phaser ,Symmetry (physics) ,0104 chemical sciences ,Computational physics ,noncrystallographic symmetry ,030104 developmental biology ,Fourier transform ,symbols ,Particle ,Crystal twinning ,REFMAC5 ,Software - Abstract
A noncrystallographic symmetry-constrained map obtained by direct density optimization is efficient and equivalent to a noncrystallographic symmetry-averaging map. Using the noncrystallographic symmetry-constrained map, the structure of a T = 1 Penaeus vannamei nodavirus shell-domain subviral particle was newly determined by including twinned data., Noncrystallographic symmetry (NCS) averaging following molecular-replacement phasing is generally the major technique used to solve a structure with several molecules in one asymmetric unit, such as a spherical icosahedral viral particle. As an alternative method to NCS averaging, a new approach to optimize or to refine the electron density directly under NCS constraints is proposed. This method has the same effect as the conventional NCS-averaging method but does not include the process of Fourier synthesis to generate the electron density from amplitudes and the corresponding phases. It has great merit for the solution of structures with limited data that are either twinned or incomplete at low resolution. This method was applied to the case of the T = 1 shell-domain subviral particle of Penaeus vannamei nodavirus with data affected by twinning using the REFMAC5 refinement software.
- Published
- 2020
26. The Birth of the Constitution of the Republic of China
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Chien-Chih Lin
- Published
- 2022
27. Applying Image Processing Technology to Estimate Vehicle Speed
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Ming-Sung Chiu, Tung-Ming Liang, Yung-Cheng Lo, Ming-Tsung Yeh, Chao-Hsing Hsu, Chien-Chih Lin, and Yi-Nung Chung
- Published
- 2022
28. Reasons for Convergence
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Po Jen Yap and Chien-Chih Lin
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Economics ,Judicial independence ,Convergence (relationship) ,Mathematical economics - Published
- 2021
29. Constitutional Convergence in East Asia
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Po Jen Yap and Chien-Chih Lin
- Abstract
This comparative study of the constitutional jurisprudence of three East Asian jurisdictions investigates how the rulings of the Constitutional Court of Taiwan, the Constitutional Court of Korea and the Hong Kong Court of Final Appeal have converged. The unique political contexts of all three jurisdictions have led to strong courts using the structured proportionality doctrine and innovative constitutional remedies to address human rights issues. Hong Kong, Taiwan, and South Korea have the only courts in Asia that regularly use a structured four-stage Proportionality Analysis to invalidate laws, and routinely apply innovative constitutional remedies such as Suspension Orders and Remedial Interpretation to rectify constitutionally flawed legislation. This volume explores how judges in these areas are affected by politics within their different constitutional systems. The latest developments in Asian constitutional law are covered, with detailed analysis of key cases.
- Published
- 2021
30. Judicial Behavior Research in East Asia
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Tom Ginsburg and Chien-Chih Lin
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Geography ,Economy ,East Asia - Published
- 2021
31. Dialogic judicial review and its problems in East Asia
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Chien-Chih Lin
- Subjects
Dialogic ,Judicial review ,Law ,Political science ,East Asia - Published
- 2019
32. Proportionality in Taiwan
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Chien-Chih Lin
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German ,Political science ,Law ,language ,Proportionality (law) ,language.human_language - Published
- 2020
33. Characterization of the dimeric interactions of dimeric and tetrameric conformations of the PvNV protrusion-domain using a mixed DFT/QTAIM approach
- Author
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Chien-Chih Lin, Yen-Chieh Huang, Chun-Jung Chen, Nai-Chi Chen, Hong-Hsiang Guan, Pei-Ju Lin, Phimonphan Chuankhayan, Elahe K. Astani, and Sara Ersali
- Subjects
Crystallography ,chemistry.chemical_compound ,Residue (chemistry) ,Tetramer ,chemistry ,Hydrogen bond ,Covalent bond ,Dimer ,Intermolecular force ,Atoms in molecules ,Natural bond orbital - Abstract
The protrusion-domain (P-domain) of Penaeus vannamei nodavirus (PvNV) exists as two dimer-dimer conformations: one is a protein dimer and the other is a protein tetramer. We undertook a theoretical study to gain a clear understanding of the nature of the stabilizing interactions at the dimeric interfaces of the dimeric and tetrameric conformations of the PvNV P-domain (PvNVPd) using the quantum theory of atoms in molecules (QTAIM) and natural-bond orbital (NBO) analyses in the framework of the density-functional theory (DFT) approach. The QTAIM analysis characterized the presence of multiple hydrogen bonds of common types with strength ranging from electrostatic to the covalent limit inside the PvNVPd dimer-dimer interfaces. Val257-Lys335, Phe294-Val330, Gln296-Thr328, Glu296-Thr329, Thr328-Gln297, Val330-Ala293, Lys335-Asp256 and Lys335-Val257 pairs are critical residue pairs of all three dimeric interfaces of PvNVPd. They preserve these dimeric interfaces through charge-charge, charge-dipole, dipole-dipole, hydrophobic and hydrogen bond interactions. The strongest intermolecular dimer–dimer interactions belong to the dimeric interface between subunits A and B of PvNVPd in the tetrameric conformation.
- Published
- 2020
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34. An Efficient Pattern Recognition Technology for Numerals of Lottery and Invoice
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Chien Chih Lin, Ming Sung Chiu, Jhen Yang Wang, Yi-Nung Chung, and Chao Hsing Hsu
- Subjects
Invoice ,Computer science ,Character (computing) ,business.industry ,020208 electrical & electronic engineering ,Image processing ,Pattern recognition ,02 engineering and technology ,Optical character recognition ,computer.software_genre ,Arabic numerals ,Numeral system ,Lottery ,Pattern recognition (psychology) ,ComputingMethodologies_DOCUMENTANDTEXTPROCESSING ,0202 electrical engineering, electronic engineering, information engineering ,020201 artificial intelligence & image processing ,Artificial intelligence ,business ,computer - Abstract
An efficient pattern recognition technology is applied to recognize the number character of lottery and invoice is proposed in this paper. There are some Arabic numerals of lottery or invoice tickets easy to be confused because of unclear printing. In this algorithm, an image processing and pattern recognition technology is applied. The advantage of this algorithm includes that the region of interest for images can be captured automatically and the accuracy of recognition is remarkable. In order to compare the Arabic numerals of invoice with template in database, the optical character recognition technology is proposed. According to compare the normalized character with template in database, the algorithm can recognize the correct Arabic numerals of lottery or invoice tickets. Based on experimental results, the proposed algorithm in this paper is efficient and has high accuracy.
- Published
- 2020
35. The Constitution of Taiwan: A Contextual Analysis
- Author
-
Chien-Chih Lin
- Subjects
Context analysis ,Constitution ,media_common.quotation_subject ,Sociology ,Law ,Epistemology ,media_common - Published
- 2018
36. Undemocratic Constitutional Law in Taiwan
- Author
-
Chien-Chih, Lin, primary
- Published
- 2021
- Full Text
- View/download PDF
37. (Invited) The Application of ALD and ALE Passivated MicroLED Display
- Author
-
Hao-Chung Kuo, Konthoujam James Singh, Chien-Chih Lin, and Yu-Ming Huang
- Subjects
Materials science ,business.industry ,MicroLED ,Optoelectronics ,business - Published
- 2021
38. Constitutional Convergence in East Asia
- Author
-
Po Jen Yap, Chien-Chih Lin, Po Jen Yap, and Chien-Chih Lin
- Subjects
- Constitutional law--East Asia
- Abstract
This comparative study of the constitutional jurisprudence of three East Asian jurisdictions investigates how the rulings of the Constitutional Court of Taiwan, the Constitutional Court of Korea and the Hong Kong Court of Final Appeal have converged. The unique political contexts of all three jurisdictions have led to strong courts using the structured proportionality doctrine and innovative constitutional remedies to address human rights issues. Hong Kong, Taiwan, and South Korea have the only courts in Asia that regularly use a structured four-stage Proportionality Analysis to invalidate laws, and routinely apply innovative constitutional remedies such as Suspension Orders and Remedial Interpretation to rectify constitutionally flawed legislation. This volume explores how judges in these areas are affected by politics within their different constitutional systems. The latest developments in Asian constitutional law are covered, with detailed analysis of key cases.
- Published
- 2021
39. The atomic structures of shrimp nodaviruses reveal new dimeric spike structures and particle polymorphism
- Author
-
Yen-Chieh Huang, Pei-Ju Lin, Masato Yoshimura, Atsushi Nakagawa, Phimonphan Chuankhayan, Nai-Chi Chen, Chun-Jung Chen, Sunney I. Chan, Shao-Kang Chen, Chien-Chih Lin, Naoyuki Miyazaki, Hong-Hsiang Guan, and Kenji Iwasaki
- Subjects
Models, Molecular ,Viral protein ,Icosahedral symmetry ,Medicine (miscellaneous) ,Crystal structure ,medicine.disease_cause ,Article ,General Biochemistry, Genetics and Molecular Biology ,Capsid ,Penaeidae ,Protein Domains ,Virus-like particle ,medicine ,Animals ,Nodaviridae ,Amino Acid Sequence ,lcsh:QH301-705.5 ,Sequence Homology, Amino Acid ,Chemistry ,Virus Assembly ,Cryoelectron Microscopy ,Virion ,RNA ,Shrimp ,Crystallography ,lcsh:Biology (General) ,Capsid Proteins ,Palaemonidae ,Protein Multimerization ,General Agricultural and Biological Sciences ,Linker - Abstract
Shrimp nodaviruses, including Penaeus vannamei (PvNV) and Macrobrachium rosenbergii nodaviruses (MrNV), cause white-tail disease in shrimps, with high mortality. The viral capsid structure determines viral assembly and host specificity during infections. Here, we show cryo-EM structures of T = 3 and T = 1 PvNV-like particles (PvNV-LPs), crystal structures of the protrusion-domains (P-domains) of PvNV and MrNV, and the crystal structure of the ∆N-ARM-PvNV shell-domain (S-domain) in T = 1 subviral particles. The capsid protein of PvNV reveals five domains: the P-domain with a new jelly-roll structure forming cuboid-like spikes; the jelly-roll S-domain with two calcium ions; the linker between the S- and P-domains exhibiting new cross and parallel conformations; the N-arm interacting with nucleotides organized along icosahedral two-fold axes; and a disordered region comprising the basic N-terminal arginine-rich motif (N-ARM) interacting with RNA. The N-ARM controls T = 3 and T = 1 assemblies. Increasing the N/C-termini flexibility leads to particle polymorphism. Linker flexibility may influence the dimeric-spike arrangement., Nai-Chi Chen et al. solved the structures of two shrimp nodaviruses, focusing on the major domains to improve understanding of capsid organization. By combining cryo-EM and x-ray crystallography, the authors were able to observe the structures at a high resolution.
- Published
- 2019
40. We the Taiwanese People
- Author
-
Chien-Chih Lin
- Subjects
Constitution ,media_common.quotation_subject ,Political science ,Law ,media_common - Published
- 2019
41. Towards an Analytical Framework of Constitutionalism in East Asia: The Case of Taiwan
- Author
-
Chien-Chih Lin
- Subjects
Human rights ,media_common.quotation_subject ,Political science ,Political economy ,Asian values ,East Asia ,Constitutionalism ,China ,Dictatorship ,Legitimacy ,Democracy ,media_common - Abstract
Recent years have witnessed the reemergence of discussions on Confucian constitutionalism, communitarian constitutionalism, and Asian values. Despite the differences of these concepts, all reject Western liberal constitutionalism, emphasizing that Asian countries should prioritize social and economic rights over civil and political rights. Nevertheless, this dichotomy in fact does not hold in Taiwan and many other East Asian jurisdictions. This chapter suggests that, on the one hand, constitutionalism in East Asia is inevitably a blend of liberal constitutionalism and Confucian constitutionalism. Namely, in East Asia, the differences between democracies and dictatorships in this regard are often a matter of degree, not of kind. On the other hand, human rights are better protected in Taiwan than in most other Asian countries because the progress in human rights is taking place concomitantly with the decline of Confucianism. From this perspective, it is plausible that Taiwan will become the only democracy among societies that predominantly are comprised of people of Chinese descent precisely because it discards Confucianism and Asian values, which serve as a veneer of legitimacy for autocrats to justify dictatorship.
- Published
- 2019
42. Ab initiophasing by molecular averaging in real space with new criteria: application to structure determination of a betanodavirus
- Author
-
Masato Yoshimura, Chien-Chih Lin, Chun-Jung Chen, Phimonphan Chuankhayan, Atsushi Nakagawa, Hong Hsiang Guan, and Nai Chi Chen
- Subjects
Models, Molecular ,0301 basic medicine ,Electron density ,multi-crystal averaging ,Protein Conformation ,Icosahedral symmetry ,ab initio phasing ,Ab initio ,Phase (waves) ,Crystallography, X-Ray ,Molecular physics ,Flattening ,03 medical and health sciences ,Protein Domains ,Structural Biology ,NCS averaging ,icosahedral virus structure ,Nodaviridae ,Molecular replacement ,Envelope (waves) ,030102 biochemistry & molecular biology ,phasing power ,Chemistry ,Research Papers ,Phaser ,Crystallography ,030104 developmental biology ,free fraction ,Capsid Proteins ,cross-crystal averaging - Abstract
A two-step process of phase determination in the X-ray structural analysis of the coat protein of a betanodavirus is described. A new indicator, the free fraction, for molecular averaging in real space is introduced to effectively evaluate the phasing power in order to enhance the success of determining new structures., Molecular averaging, including noncrystallographic symmetry (NCS) averaging, is a powerful method for ab initio phase determination and phase improvement. Applications of the cross-crystal averaging (CCA) method have been shown to be effective for phase improvement after initial phasing by molecular replacement, isomorphous replacement, anomalous dispersion or combinations of these methods. Here, a two-step process for phase determination in the X-ray structural analysis of a new coat protein from a betanodavirus, Grouper nervous necrosis virus, is described in detail. The first step is ab initio structure determination of the T = 3 icosahedral virus-like particle using NCS averaging (NCSA). The second step involves structure determination of the protrusion domain of the viral molecule using cross-crystal averaging. In this method, molecular averaging and solvent flattening constrain the electron density in real space. To quantify these constraints, a new, simple and general indicator, free fraction (ff), is introduced, where ff is defined as the ratio of the volume of the electron density that is freely changed to the total volume of the crystal unit cell. This indicator is useful and effective to evaluate the strengths of both NCSA and CCA. Under the condition that a mask (envelope) covers the target molecule well, an ff value of less than 0.1, as a new rule of thumb, gives sufficient phasing power for the successful construction of new structures.
- Published
- 2016
43. Rapid Fabrication of a Cell-Seeded Collagen Gel-Based Tubular Construct that Withstands Arterial Pressure
- Author
-
Pei Yuan Lee, Jia-Horng Lin, Jin Jia Hu, Po Ching Lu, Lynn Ling-Huei Huang, Chun Jung Chen, Chien Chih Lin, and Ho Yi Tuan-Mu
- Subjects
Time Factors ,Materials science ,Fabrication ,Suction ,Myocytes, Smooth Muscle ,0206 medical engineering ,Biomedical Engineering ,Blood Pressure ,Nanotechnology ,02 engineering and technology ,Cell Line ,Gel based ,Humans ,Fiber ,Tube (container) ,Composite material ,Bioprosthesis ,Models, Cardiovascular ,021001 nanoscience & nanotechnology ,Compression (physics) ,Microstructure ,020601 biomedical engineering ,Blood Vessel Prosthesis ,Collagen gel ,Collagen ,0210 nano-technology ,Gels - Abstract
Based on plastically compressed cell-seeded collagen gels, we fabricated a small-diameter tubular construct that withstands arterial pressure without prolonged culture in vitro. Specifically, to mimic the microstructure of vascular media, the cell-seeded collagen gel was uniaxially stretched prior to plastic compression to align collagen fibers and hence cells in the gel. The resulting gel sheet was then wrapped around a custom-made multi-layered braided tube to form aligned tubular constructs whereas the gel sheet prepared similarly but without uniaxial stretching formed control constructs. With the braided tube, fluid in the gel construct was further removed by vacuum suction aiming to consolidate the concentric layers of the construct. The construct was finally treated with transglutaminase. Both SEM and histology confirmed the absence of gaps in the wall of the construct. Particularly, cells in the wall of the aligned tubular construct were circumferentially aligned. The enzyme-mediated crosslinking increased burst pressure of both the constructs significantly; the extent of the increase of burst pressure for the aligned tubular construct was greater than that for the control counterpart. Increasing crosslinking left the compliance of the aligned tubular construct unchanged but reduced that of the control construct. Cells remained viable in transglutaminase-treated plastically compressed gels after 6 days in culture. This study demonstrated that by combining stretch-induced fiber alignment, plastic compression, and enzyme-mediated crosslinking, a cell-seeded collagen gel-based tubular construct with potential to be used as vascular media can be made within 3 days.
- Published
- 2016
44. A Fully Integrated 60-GHz CMOS Direct-Conversion Doppler Radar RF Sensor With Clutter Canceller for Single-Antenna Noncontact Human Vital-Signs Detection
- Author
-
Jhin-Ying Lyu, Pei-Hua Lo, Chien-Chang Chou, Hsin-Chih Kuo, Chien-Chih Lin, Chun-Han Yu, and Huey-Ru Chuang
- Subjects
Physics ,Radiation ,business.industry ,Amplifier ,020208 electrical & electronic engineering ,Doppler radar ,Electrical engineering ,020206 networking & telecommunications ,02 engineering and technology ,Condensed Matter Physics ,law.invention ,Frequency divider ,Optics ,CMOS ,law ,0202 electrical engineering, electronic engineering, information engineering ,Clutter ,Radio frequency ,Electrical and Electronic Engineering ,Antenna (radio) ,business ,Phase shift module - Abstract
This paper presents a 60-GHz CMOS direct-conversion Doppler radar RF sensor with a clutter canceller for single-antenna noncontact human vital-signs detection. A high isolation quasi-circulator (QC) is designed to reduce the transmitting (Tx) power leakage (to the receiver). The clutter canceller performs cancellation for the Tx leakage power (from the QC) and the stationary background reflection clutter to enhance the detection sensitivity of weak vital signals. The integration of the 60-GHz RF sensor consists of the voltage-controlled oscillator, divided-by-2 frequency divider, power amplifier, QC, clutter canceller (consisting of variable-gain amplifier and 360 $^{\circ}$ phase shifter), low-noise amplifier, in-phase/quadrature-phase sub-harmonic mixer, and three couplers. In the human vital-signs detection experimental measurement, at a distance of 75 cm, the detected heartbeat (1–1.3 Hz) and respiratory (0.35–0.45 Hz) signals can be clearly observed with a 60-GHz 17-dBi patch-array antenna. The RF sensor is fabricated in 90-nm CMOS technology with a chip size of ${\hbox{2 mm}}\times {\hbox{2 mm}}$ and a consuming power of 217 mW.
- Published
- 2016
45. Constitutions and courts in Chinese authoritarian regimes: China and pre-democratic Taiwan in comparison: Table 1
- Author
-
Chien-Chih Lin
- Subjects
Politics ,Constitution ,Judicial review ,media_common.quotation_subject ,Law ,Authoritarianism ,Sociology ,Constitutional court ,Autocracy ,China ,Communism ,media_common - Abstract
Constitutions and courts play important roles not only in democracies but also in dictatorships. Yet the functions of constitutions and courts actually differ from one autocracy to another. After the Chinese Civil War, China and pre-democratic Taiwan adopted different strategies to address political cataclysm, even though the Communist Party and the Nationalist Party shared many characteristics. China has repeatedly rewritten its constitutions to adapt to the ever-changing world, rendering the judiciary impotent. Taiwan, on the other hand, maintained judicial review even during the authoritarian period, while leaving its Constitution frozen. The disparity, this article suggests, should be attributed to the different functions of constitutions and courts in the two Chinese authoritarian societies. Taiwan needed to rely on its Constitution and constitutional court to formally justify its claim as the sole legitimate Chinese government. In contrast, China uses its living constitutions to transmit messages to the world about its latest political, social, and economic developments.
- Published
- 2016
46. Structural insights into the electron/proton transfer pathways in the quinol:fumarate reductase from Desulfovibrio gigas
- Author
-
Shao-Kang Chen, Masato Yoshimura, Li-Ying Chen, Nai-Chi Chen, Yen-Chieh Huang, Chien-Chih Lin, Pei-Ju Lin, Atsushi Nakagawa, Phimonphan Chuankhayan, Sunney I. Chan, Yin-Cheng Hsieh, Hong-Hsiang Guan, and Chun-Jung Chen
- Subjects
0301 basic medicine ,Models, Molecular ,Stereochemistry ,Protein Conformation ,Respiratory chain ,lcsh:Medicine ,Protomer ,Crystallography, X-Ray ,Cofactor ,Article ,Substrate Specificity ,Electron Transport ,03 medical and health sciences ,chemistry.chemical_compound ,Bacterial Proteins ,Desulfovibrio gigas ,Humans ,lcsh:Science ,Heme ,Multidisciplinary ,030102 biochemistry & molecular biology ,biology ,lcsh:R ,Vitamin K 2 ,Fumarate reductase ,Electron transport chain ,Desulfovibrionaceae Infections ,030104 developmental biology ,chemistry ,biology.protein ,lcsh:Q ,Anaerobic bacteria ,Protons ,Oxidoreductases ,Protein Binding - Abstract
Guan, H., Hsieh, Y., Lin, P. et al. Structural insights into the electron/proton transfer pathways in the quinol : fumarate reductase from Desulfovibrio gigas. Sci Rep 8, 14935 (2018) doi:10.1038/s41598-018-33193-5, The membrane-embedded quinol: fumarate reductase (QFR) in anaerobic bacteria catalyzes the reduction of fumarate to succinate by quinol in the anaerobic respiratory chain. The electron/protontransfer pathways in QFRs remain controversial. Here we report the crystal structure of QFR from the anaerobic sulphate-reducing bacterium Desulfovibrio gigas (D. gigas) at 3.6 Å resolution. The structure of the D. gigas QFR is a homo-dimer, each protomer comprising two hydrophilic subunits, A and B, and one transmembrane subunit C, together with six redox cofactors including two b-hemes. One menaquinone molecule is bound near heme bL in the hydrophobic subunit C. This location of the menaquinone-binding site differs from the menaquinol-binding cavity proposed previously for QFR from Wolinella succinogenes. The observed bound menaquinone might serve as an additional redox cofactor to mediate the proton-coupled electron transport across the membrane. Armed with these structuralinsights, we propose electron/proton-transfer pathways in the quinol reduction of fumarate to succinate in the D. gigas QFR.
- Published
- 2018
47. Constitutional Inertia and Regime Pluralism in Asia
- Author
-
Chien-Chih Lin and David S. Law
- Subjects
South asia ,Hegemony ,Pluralism (political theory) ,media_common.quotation_subject ,Political science ,Political economy ,East Asia ,Liberal democracy ,Constitutionalism ,China ,Democracy ,media_common - Abstract
Many fear that constitutional democracy is under threat from democratic backlash and losing ground to illiberal constitutionalism. Discussion of this supposedly global trend, however, often takes relatively little account of East Asia, if not Asia more generally, which is deeply problematic given both the intrinsic importance and the heterogeneity of the region. This essay draws on Asian experience over the last three decades to evaluate three hypotheses that might explain the prevalence and stability of constitutional democracy: (1) the contagion hypothesis, (2) the constitutional inertia hypothesis, and (3) the regime performance hypothesis. Comparison of such jurisdictions as South Korea, Taiwan, Singapore, Hong Kong, China, and Thailand is sufficient to cast doubt on (1) but suggests that (2) and (3) are both plausible. On the whole, this vast region is characterized more by regime stability than either backsliding or hegemony of any particular regime type. What the future appears to hold for Asia is more of the same—namely, regime pluralism.
- Published
- 2018
48. Asymmetric structure of bid-ask spreads across the business cycle
- Author
-
Chien-Chih Lin
- Subjects
Economics and Econometrics ,050208 finance ,Financial economics ,media_common.quotation_subject ,05 social sciences ,Monetary economics ,Recession ,Information asymmetry ,Bid–ask spread ,0502 economics and business ,Economics ,Business cycle ,Order processing ,050207 economics ,Bid price ,Futures contract ,media_common ,Spread trade - Abstract
This study argues that the structure of bid-ask spreads is asymmetric across the business cycle. During expansion, investors tend to be overconfident, leading to a higher spread component due to information asymmetry. On the other hand, during recession, the markets are more volatile, leading to a higher spread component due to order processing costs. With TAIEX futures contracts as a sample, it is found that the spread component due to information asymmetry is significantly higher in times of expansion than in times of recession, while the spread component due to order processing cost is significantly higher in times of recession than in times of expansion.
- Published
- 2015
49. Compact triple-passband bandpass filter based on new modified stepped impedance resonators
- Author
-
Yu-Fu Chen, Hsin Ying Lee, Chien-Chih Lin, and Hung-Wei Wu
- Subjects
Materials science ,Acoustics ,Astrophysics::Instrumentation and Methods for Astrophysics ,General Engineering ,Butterworth filter ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Transition band ,Band-stop filter ,Band-pass filter ,Electronic engineering ,Astrophysics::Solar and Stellar Astrophysics ,Elliptic filter ,Prototype filter ,Mechanical filter ,Passband - Abstract
This study proposed a triple-passband bandpass filter with compact size, low loss and high passband selectivity. The filter includes two coupled stepped impedance resonators (SIRs) and two embedded stub-loaded stepped impedance resonators (SL-SIRs), connected with coupling scheme at the symmetric plane of the filter. The filter is designed to have triple-passband at 2.4, 3.5 and 5.2GHz for worldwide interoperability for microwave access (WiMAX) applications. By properly tuning the impedance ratio and physical length ratio of the SL-SIRs, the three passbands can be easily determined, at the same time, achieving the high passband selectivity and wide stopband. Besides, the transmission zeros near passband edges of each passband are generated by the proposed filter with cross-coupling structure. The measured results are in good agreement with the full-wave electromagnetic (EM) simulation results.
- Published
- 2015
50. Asia-Pacific Stock Return Predictability and Market Information Flows
- Author
-
Chien-Chih Lin
- Subjects
Asia pacific ,Financial economics ,Autoregressive conditional heteroskedasticity ,Econometrics ,Economics ,Predictive power ,Predictability ,Stock return ,General Economics, Econometrics and Finance ,Finance ,Statistic ,Stock (geology) - Abstract
In this study, I investigate lead-lag relationships among Asia-Pacific country stock returns. Taking the GARCH effects into account, I estimate a prediction model, and find that lagged Singapore returns exhibit the strongest predictive ability for the returns of Asia-Pacific countries. Estimating this model, I find that lagged Singapore returns exhibit the strongest predictive ability for the returns of Asia-Pacific countries. The Asia-Pacific stock markets react with a delay of information contained in lagged Singapore returns about their fundamentals, and that information diffuses gradually across Asia-Pacific stock markets. Finally, using the MSPE-adjusted statistic, I provide out-of-sample evidence to examine the consistency of the predictive power of lagged Singapore returns.
- Published
- 2015
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