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Strengthening reinforced concrete beams using prestressed glass fiber-reinforced polymer-Part I: Experimental study

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2005年第8期6卷 166-174页

作者： WU Jong-hwei YEN Tsong hung chien-hsing LIN Yiching Department of Civil Engineering National Chung-Hsing University 40227 Taiwan ChinaDepartment of Civil Engineering National Chung-Hsing University 40227 Taiwan ChinaDepartment of Civil Engineering National Chung-Hsing University 40227 Taiwan ChinaDepartment of Civil Engineering National Chung-Hsing University 40227 Taiwan China

This work is aimed at studying the strengthening of reinforced concrete (R. C.) beams using prestressed glass fi- ber-reinforced polymer (PGFRP). Carbon fiber-reinforced polymer (CFRP) has recently become popular for use as repair or rehabilitation material for deteriorated R. C. structures, but because CFRP material is very stiff, the difference in CFRP sheet and concrete material properties is not favorable for transferring the prestress from CFRP sheets to R. C. members. Glass fi- ber-reinforced polymer (GFRP) sheets with Modulus of Elasticity quite close to that of concrete was chosen in this study. The load-carrying capacities (ultimate loads) and the deflections of strengthened R. C. beams using GFRP and PGFRP sheets were tested and compared. T- and ⊥-shaped beams were used as the under-strengthened and over-strengthened beams. The GFRP sheets were prestressed to one-half their tensile capacities before being bonded to the T- and ⊥-shaped R. C. beams. The prestressed tension in the PGFRP sheets caused cambers in the R. C. beams without cracks on the tensile faces. The PGFRP sheets also enhanced the load-carrying capacity. The test results indicated that T-shaped beams with GFRP sheets increased in load-carrying capacity by 55% while the same beams with PGFRP sheets could increase load-carrying capacity by 100%. The ⊥-shaped beams with GFRP sheets could increase load-carrying capacity by 97% while the same beams with PGFRP sheets could increase the loading-carrying capacity by 117%. Under the same external loads, beams with GFRP sheets underwent larger deflections than beams with PGFRP sheets. While GFRP sheets strengthen R. C. beams, PGFRP sheets decrease the beams’ ductility, especially for the over-strengthened beams (⊥-shaped beams).

关键词：预应力混凝土梁玻璃纤维增强聚合物碳纤维钢板

Modeling and Verification of a Sentiment Analysis System Using Aspect-Oriented Petri Nets

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Journal of Electronic Science and Technology 2022年第2期20卷 209-223页

作者： Shu-hung Yang Yi-Nan Lin cheng-Ying Yang Ming-Kuen chen Victor R.L.Shen Yu-Wei Lin the Department of Business Management National Taipei University of TechnologyTaipei 10608 the Department of Computer Science University of TaipeiTaipei 100 the Department of Information Management Chaoyang University of TechnologyTaichung 413 the Department of Computer Science and Information Engineering National Taipei UniversityNew Taipei 23741

An increasing number of social media and networking platforms have been widely used. People usually post the online comments to share their own opinions on the networking platforms with social media. Business companies are increasingly seeking effective ways to mine what people think and feel regarding their products and services. How to correctly understand the online customers’ reviews becomes an important issue. This study aims to propose a method with the aspect-oriented Petri nets(AOPN) to improve the examination correctness without changing any process and program. We collect those comments from the online reviews with Scrapy tools, perform sentiment analysis using SnowNLP, and examine the analysis results to improve the correctness. In this paper, we apply our method for a case of the online movie comments. The experimental results have shown that AOPN is helpful for the sentiment analysis and verifying its correctness.

关键词： own correctness companies

Heat Treatment Promotes Ubiquitin-Mediated Proteolysis of SARS-CoV-2 RNA Polymerase and Decreases Viral Load

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Research 2022年第2期2022卷 41-45页

作者： Yasen Maimaitiyiming Tao Yang Qian Qian Wang Yan Feng Zhi chen Mikael Bjorklund Fudi Wang Chonggao Hu Chih-hung Hsu Hua Naranmandura Deparment of Public Healh and Department of Hematology of First Afilated Hospital Zhejiang Unvrsity Schoo of MedicineHangzhou 310058China Zhejiang University Cancer Cenler Hangzhou 310058China Deparment of Neurobiology and Depariment of Neurology of the First Afiliated Hospital Zhejiang University School of Medicire.NHC and CAMS Key Laboratory of Medical Neurobiology School of Brain Science and Brain MedicineZhejiang UniversityHangzhou 310058China Zhejing Provincial Center for Disease Control and Prevention Hangzhou 310051China State Key Laboratory for Diagrosis and Treatment of Infectious Diseases Collaborative Innovation Center for DigHosis and Treatment of Infectious DiseaseThe First filiated HospitalZhejiang University School of MedicineHangzhouChina Zhejing Unversity-Univrsity of Edinburgh(ZJU-UoE)Institute Haining 314499ZhejiangChina The First Afiliated Hospital Institute of Trarslational MedicineSchoo of Public HealthZhejiang University School of Medicine.Hangzhou 310058Chima Hengvang Medical School University of South ChinaHengvang 421001China Women's Hospital Institut of Gencticsand Departmrent of Enwironmental Medicine.Zhejiang Universty School of MedicineHangzhou 310006China

Despite extensive eforts,COVID-19 pandemic caused by the SARS-CoV-2 virus is still at *** is an eftive approach to curb virus spread,but several variants(***,delta plus,omicron,and IHU)appear to weaken or possibly escape immune ***,novel and quickly scalable approaches to restrain SARS-CoV-2 are urgently *** evidences showed thermal sensitivity of SARS-CoV-2 and negative correlation between environmental temperature and COVID-19 transmission with unknown *** reveal a potential mechanism by which mild heat treatment destabilizes the wild-type RNA-dependent RNA polymerase(also known a nonstructural protein 12(NSP12))of SARS-CoV-2 as well as the P323L mutant commonly found in SARS-CoV-2 variants,including omicron and ***,heat treatment promotes E3 ubiquitin ligase ZNF598-dependent NSP12 ubiquitination leading to proteasomal degradation and significantly decreases SARS-CoV-2 RNA copy number and viral titer.A mild daily heat Ireatment maintains low levels of both wild-type and P323L mutant of NSP12,sugesting clinical ***',this novel mechanism,heat-induced NSP12 degradation,suggests a prospective heat-based intervention against SARS-CoV-2.

关键词： NSP1 mechanism delta

Predictors of unfavorable outcome at 90 days in basilar artery occlusion patients

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World Journal of Clinical Cases 2022年第12期10卷 3677-3685页

作者： Yu-chen Chiu Jia-Li Yang Wei-Chun Wang hung-Yu Huang Wei-Liang chen Pao-Sheng Yen Ying-Lin Tseng Hsiu-Hsueh chen Sheng-Ta Tsai Department of Neurology An Nan HospitalChina Medical UniversityTainan 709204Taiwan College of Medicine China Medical UniversityTaichung 404332Taiwan Department of Anesthesiology China Medical University HospitalTaichung 404332Taiwan Department of Neurology China Medical University HospitalTaichung 404332Taiwan Department of Radiology China Medical University HospitalTaichung 404332Taiwan Department of Radiology Kuang Tien General HospitalTaichung 404332Taiwan Stroke Center China Medical University HospitalTaichung 404332Taiwan

BACKGROUND In a previous study,basilar artery occlusion(BAO)was shown to lead to death or disability in 80%of the *** treatment for BAO patients in the acute stage includes thrombolysis and intra-arterial thrombectomy,but not all patients benefit from these ***,understanding the predictors of outcome before initiating these treatments is of special *** To determine the predictors related to the 90-d clinical outcome in patients with BAO in an Asian *** We performed a retrospective case review of patients admitted to a tertiary stroke center between 2015 and *** used the international classification of diseases-10 criteria to identify cases of posterior circulation stroke.A neurologist reviewed every case,and patients fulfilling the criteria defined in the Basilar Artery International Cooperation Study were *** then analyzed the patients’characteristics and factors related to the 90-d *** We identified a total of 99 patients as real BAO *** these patients,33(33.3%)had a favorable outcome at 90 d(modified Rankin Scale:0–3).Moreover,72 patients received intra-arterial thrombectomy,while 13 patients received intravenous tissue-type plasminogen activator *** observed a favorable outcome in 33.3%of the cases and an unfavorable outcome in 66.7%of the *** found that the initial National Institutes of Health Stroke Scale(NIHSS)score and several BAO symptoms,including impaired consciousness,tetraparesis,and pupillary abnormalities,were significantly associated with an unfavorable outcome(P<0.05),while cerebellar symptoms were associated with a favorable outcome(P<0.05).In the receiver operating characteristic(ROC)analysis,the areas under the ROC curve of initial NIHSS score,impaired consciousness,tetraparesis,cerebellar symptoms,and pupillary abnormalities were 0.836,0.644,0.727,0.614,and 0.614,*** NIHSS score showed a higher AUROC(0.836)compared to BAO ***

关键词： Basilar artery occlusion National Institutes of Health Stroke Scale Natural course Outcome Asian

Longitudinal assessment of liver stiffness by transient elastography for chronic hepatitis C patients

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World Journal of Clinical Cases 2022年第17期10卷 5566-5576页

作者： Anya Mezina Arunkumar Krishnan Tinsay A Woreta Kevin B Rubenstein Eric Watson Po-hung chen Carla Rodriguez-Watson Department of Medicine Johns Hopkins School of MedicineBaltimoreMD 21287United States Division of Gastroenterology and Hepatology Johns Hopkins School of MedicineBaltimoreMD 21231United States Mid-Atlantic Permanente Research Institute Kaiser Permanente Mid-Atlantic StatesRockville 20852United States Department of Health Policy and Management Bloomberg School of Public HealthJohns Hopkins UniversityBaltimoreMD 21287United States Innovation in Medical Evidence Development and Surveillance(IMEDS)Program Reagan-Udall Foundation for the FDAWashington20036United States

BACKGROUND Liver fibrosis is a common pathway of liver injury and is a feature of most chronic liver *** progression varies markedly in patients with hepatitis C virus(HCV).Liver stiffness has been recommended as a parameter of fibrosis progression/regression in patients with *** To investigate changes in liver stiffness measured by transient elastography(TE)in a large,racially diverse cohort of United States patients with chronic hepatitis C(CHC).METHODS We evaluated the differences in liver stiffness between patients treated with direct-acting antiviral(DAA)therapy and untreated *** had≥2 TE measurements and no prior DAA *** used linear regression to measure the change in liver stiffness between first and last TE in response to treatment,controlling for age,sex,race,diabetes,smoking status,human immunodeficiency virus status,baseline alanine aminotransferase,and baseline liver *** regression models analyzed the change in liver stiffness as measured by kPa,stratified by cirrhosis *** Of 813 patients,419(52%)initiated DAA *** liver stiffness was 12 kPa in 127(16%).Median time between first and last TE was 11.7 and 12.7 mo among treated and untreated patients,*** was no significant change in liver stiffness observed over time in either the group initiating DAA treatment(0.016 kPa/month;CI:-0.051,0.084)or in the untreated group(0.001 kPa/mo;CI:-0.090,0.092),controlling for covariates.A higher baseline kPa score was independently associated with decreased liver *** DAA treatment was not associated with a differential change in liver stiffness over time in patients with CHC compared to untreated patients.

关键词： Chronic hepatitis C Liver stiffness Cirrhosis Transient elastography Direct-acting antiviral therapy

Effects of biochar on soil water retention curves of compacted clay during wetting and drying

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Biochar 2022年第1期4卷 1117-1130页

作者： James Tsz Fung Wong Ka Lai Chow Xun Wen chen Charles Wang Wai Ng Ming hung Wong Department of Civil and Environmental Engineering The Hong Kong University of Science and TechnologyClear Water BayKowloonHong KongSARChina Department of Geography Hong Kong Baptist UniversityKowloon TongHong KongSARChina Consortium on Health EnvironmentEducation and Research(CHEER)Department of Science and Environmental StudiesThe Education University of Hong KongTai PoHong KongSARChina Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control School of Environmental Science and EngineeringSouthern University of Science and TechnologyShenzhen 518055China State Environmental Protection Key Laboratory of Integrated Surface Water Groundwater Pollution Control School of Environmental Science and EngineeringSouthern University of Science and TechnologyShenzhen 518055China

Compacted clay possesses a low water permeability and has been widely used in geo-environmental facilities such as landfill cover *** studies revealed the potential applications of compacted biochar-amended clay(BAC)as an alternative landfill cover ***,the effects of biochar on the soil water retention curves(SWRCs)of clay at low suction are not *** study can help fill this knowledge gap by measuring the wetting and drying SWRCs of clay and BAC(20%biochar).Soils were compacted in instrumented soil columns and subjected to a wetting and drying cycle,and soil water content and suction were measured along with the soil *** was saturated faster when compared with *** drying,the soil water content of clay at 65 mm depth dropped to almost zero,while about 5%of water was retained in *** showed that biochar increased the soil water retention capacity of compacted clay upon *** showed that biochar-clay composite possesses a higher soil water retention capacity at a low soil suction range(<1000 kPa)compared with clay *** revealed the benefits of using compacted biochar-clay composite as a hydraulic barrier to minimize desiccation-induced cracks and potentially promote its serviceability,especially in arid and semi-arid *** composite is also a carbon sink material that can reduce landfill gas emissions and pollutant leaching.

关键词： Soil amendment Biochar-clay composite Soil carbon Soil suction Soil depth

Comparisons of voided urine cytology, nuclear matrix protein-22 and bladder tumor associated antigen tests for bladder cancer of geriatric male patients in Taiwan, China

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Asian Journal of Andrology 2007年第5期9卷 711-715页

作者： Ke-hung Tsui Shao-Ming chen Ta-Ming Wang Horng-Heng Juang chien-Lun chen Guang-Huan Sun Phei-Lang Chang Department of Nursing Chang Gung lnstitute of Technology Kwei Shan Taoyuan 333 Taiwan China Department of Urology Taipei City Hospital Heping Campus Taipei 100 Taiwan China Department of Geriatric Urology Chang Gung Bioinformatics Center Chang Gung Memorial Hospital Kwei ShanTaoYuan 333 Taiwan China Department of Anatomy College of Medicine Chang Gung University Taoyuan 332 Taiwan China Division of Urology Department of Surgery Tri-Service General Hospital National Defense Medical Center Taibei 114Taiwan China

Aim： To compare the results of bladder tumor associated antigen （BTA TRAK）, nuclear matrix protein 22 （NMP 22） and voided urine cytology （VUC） in detecting bladder cancer. Methods： A total of 135 elderly male and 50 healthy volunteers enrolled in this study were classified into three groups：（i） 93 patients with bladder cancer; （ii） 42 patients with urinary benign conditions; and （iii） 50 healthy volunteers. BTA TRAK and NMP 22 kits were used to detect bladder cancer. Voided urine cytology was used to compare the sensitivity and specificity of the screening tests. Results： The sensitivity and specificity of cytology, BTA TRAK and NMP 22 were 24% and 97%, 51% and 73%, 78% and 73%, respectively. The level of NMP 22 increased with tumor grading. The BTA TRAK kit has the lowest sensitivity among the screening tests. The NMP 22 with the best sensitivity can be an adjunct to cytology for evaluating bladder cancer. Conclusion： The NMP 22 test has a better correlation with the grading of the bladder cancer than BTA TRAK. As cytology units are typically not available in hospitals or in outpatient clinics, NMP 22 might be a promising tool for screening bladder cancer.

关键词： bladder neoplasm cytology bladder tumor associated antigen nuclear matrix protein 22

Numerical characteristics of the full operator hybrid simulation method

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Earthquake Engineering and Engineering Vibration 2011年第3期10卷 453-463页

作者： Chung-Chan hung Yong-Song chen Department of Civil Engineering Central University （NCU） Chinese Taipei Department of Mechanical Engineering Chung Cheng University （NCCU） Chinese Taipei

The full operator method （FOM） has been proposed to overcome some of the shortcomings of the commonly used operator splitting method （OSM）. In particular, the FOM is improved by increasing the accuracy of both the predictor and corrector using the estimated tangent stiffness of the tested structure. The numerical characteristics of the FOM, including stability and accuracy, are investigated in this study. It is shown that FOM is conditionally stable. The stability and accuracy characteristics are dependent on the accuracy of the estimated tangent stiffness and the parameters associated with the acceleration variation in the time-stepping integration method. Mass-spring systems with different types of nonlinearity, including hardening, stiffening, and softening behavior, are used to evaluate the performance of the FOM. It is found that the FOM can capture these types of nonlinearity with satisfactory accuracy. Using a prototype 12-story composite coupled wall system, the influences of the strong nonlinearity of the system as well as the displacement control errors from hydraulic actuators on the performance of the FOM are explored. The results show that the FOM is capable of generating reasonably accurate results despite the presence of strong structural nonlinearity and displacement control errors.

关键词： hybrid simulation tangent stiffness numerical characteristic composite coupled wall system collapse behavior nonlinear behavior

Mucosal patterns of Helicobacter pylori-related gastritis without atrophy in the gastric corpus using standard endoscopy

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World Journal of Gastroenterology 2010年第4期16卷 496-500页

作者： Shwu-Tzy Wu chien-Hua chen Yeh-Huang hung Tsung-Hsun Yang Vun-Siew Pang Yung-Hsiang Yeh Department and Graduate Program of Bioindustrial Technology Dayeh UniversityChanghua County 51591TaiwanChina Division of Gastroenterology Department of Internal MedicineShow-Chwan Memorial HospitalChanghuaCity 500TaiwanChina Division of Gastroenterology Department of Internal MedicineChang Bing Show-Chwan Memorial HospitalChanghua County 505TaiwanChina

AIM:To identify the mucosal patterns of Helicobacter pylori(*** )-related gastritis in the gastric corpus using standard endoscopy and to evaluate their ***:A total of 112 consecutive patients underwent upper gastrointestinal *** endoscopists classified the endoscopic findings into 4 *** the second part of the study,90 images were shown to 3 endoscopists in order to evaluate the inter-observer and intra-observer variability in image ***:The mucosal patterns of the gastric bodywere categorized into 4 *** 1 pattern was defined as cleft-like appearance,type 2 as regular arrangement of red dots,type 3 pattern as the mosaic mucosal pattern and type 4 pattern as the mosaic pattern with a focal area of *** 1 and type 2 mucosal patterns were statistically significant in predicting *** status as compared with other mucosal types(χ 2 = 12.79 and 61.25 respectively,P < 0.01).Type 3 and type 4 mucosal patterns were statistically significant in predicting a ***-positive status as compared with other mucosal types(χ 2 = 21.22 and 11.02 respectively,P < 0.01).Furthermore,the sensitivity,specificity,positive and negative predictive values of type 3 plus type 4 patterns for predicting ***-positive gastric mucosa were 100%,86%,94%,and 100%,*** mean κ values for inter-and intra-observer agreement in assessing the various endoscopic patterns were 0.808(95% CI,0.678-0.938) and 0.826(95% CI,0.727-0.925) ***:Our study suggests that mucosal patterns in ***-infected gastric mucosa without atrophy can be reliably identified using standard endoscopy in the gastric corpus.

关键词： Gastric mucosa Helicobacter pylori Gastritis Digestive system diagnostic techniques Endoscopy