Effects of near-fault loading and lateral bracing on the behavior of RBS moment connections

Qi-Song “Kent” Yu,Chia-Ming Uang 국제구조공학회 2001 Steel and Composite Structures, An International J Vol.1 No.1

An experimental study was conducted to evaluate the effects of loading sequence and lateral bracing on the behavior of reduced beam section (RBS) steel moment frame connections. Four full-scale moment connections were cyclically tested-two with a standard loading history and the other two with a near-fault loading history. All specimens reached at least 0.03 radian of plastic rotation without brittle fracture of the beam flange groove welds. Two specimens tested with the nearfault loading protocol reached at least 0.05 radian of plastic rotation, and both experienced smaller buckling amplitudes at comparable drift levels. Energy dissipation capacities were insensitive to the types of loading protocol used. Adding a lateral bracing near the RBS region produced a higher plastic rotation; the strength degradation and buckling amplitude were reduced. A non-linear finite element analysis of a one-and-a-half-bay beam-column subassembly was also conducted to study the system restraint effect. The study showed that the axial restraint of the beam could significantly reduce the strength degradation and buckling amplitude at higher deformation levels.

Web Advertising Opportunities on Professional Sport Team Web Sites

( Chia Chen Yu ),( Susan M. Barnd ) 한국스포츠정책과학원(구 한국스포츠개발원) 2003 International Journal of Applied Sports Sciences Vol.15 No.2

In the early 1990s, the World Wide Web (WWW) was mainly used for informational purposes. As more people search the web for information or add new materials, advertisers are finding the web to be a viable advertising opportunity for their products and services. This current trend also reflects on the area of sport management. Similar to sponsorship of sporting events and the endorsement of professional players, professional sport team web sites also attract attention from sponsors and corporations. The major purpose of this research was to explore the web advertising opportunities on professional sport team web sites. The subjects of this research were the professional sport team web sites. Content analysis was primarily used as the research method for this study. The findings showed that only a few professional sport teams present sponsorship and advertising opportunities on their web pages, even though almost every professional team has advertising banners on their homepages. The use of advertising banners on professional sport team web sites reflects the current developing stage of web advertising campaigns. The use of an advertising banner has been increasing; however, there is still no formal format for the advertising campaign. The authors also found that a large portion of professional sport teams contracted sport media companies to deal with the web advertising campaign, which might be a trend for sport management in the future. It is recommended that sport marketers provide the informational about the demographics because it is valuable informational to the potential sponsors who would like to know if the viewers match the characteristics of their target market.

Fabrication of Multifunctional Polyester Fabrics by Using Fluorinated Polymer Coatings

Chia-Jung Chen,Wen-Hui Li,Wei-Yu Chen,Yu-Min Yang 한국섬유공학회 2019 Fibers and polymers Vol.20 No.10

Facile and effective polymer coatings are highly desirable in the creation of functional surfaces for variousapplications. A polymer coating by using poly(vinylidene fluoride-co-hexafluoropropylene (PVDF-HFP) and a fluorinatedalkyl silane (FAS-17) in volatile solvent has been proposed in the literature for the fabrication of chemically stable andsuperamphiphobic fabrics. This method, however, suffered from the fact that the results were unable to be experimentallyreproduced by the authors. In this work, FAS-17-modified PVDF-HFP with surface energy of 14.04 mN/m was preparedthrough two-step reactions in acetone using coupling agent 3-aminopropyltrimethoxysilane (H2N-(CH2)3-Si-(OCH3)3) and1H,1H,2H,2H-perfluorodecyltriethoxysilane (FAS-17, F3C-(CF2)7-(CH2)2-Si-(OC2H5)3) in the first and second reaction steps,respectively. This coating solution was then applied onto the twill weave polyester fabric using a dip-coating method. The asfabricatedsurfaces exhibited extreme liquid repellency as signified by high static contact angles (149.5 o-105.7 o) against sixpure liquids (water, ethylene glycol, hexadecane, pentadecane, nonane, octane) with surface tension values ranging from 72.8to 21.4 mN/m. Furthermore, this coating showed chemical stability to strong acid (96 % sulfuric acid) and strong base (38 %sodium hydroxide). In addition to self-cleaning property, the coating also exhibited self-healing property as revealed by thestatic contact angle change with the plasma-and-heat treatment cycles. Moreover, it is interesting to note that coating offabrics with the pristine solution of PVDF-HFP and FAS-17 may instead find its potential applications in oil-waterseparation. High separation efficiency, stability, and reusability were exhibited by the as-fabricated separation membrane.

How to Implement Negative Resisters in an Electric Analog Neural Network

Chia Yu Yao 대한전자공학회 1994 ICONIP : International Conference On Neural Inform Vol.3 No.1

Sequence and phylogenetic analysis of the gp200 protein of Ehrlichia canis from dogs in Taiwan

Chia-Chia Huang,Yu-Chen Hsieh,Chau-Loong Tsang,Yang-Tsung Chung 대한수의학회 2010 JOURNAL OF VETERINARY SCIENCE Vol.11 No.4

Ehrlichia (E.) canis is a Gram-negative obligate intracellular bacterium responsible for canine monocytic ehrlichiosis. Currently, the genetic diversity of E. canis strains worldwide is poorly defined. In the present study, sequence analysis of the nearly full-length 16S rDNA (1,620 bp) and the complete coding region (4,269 bp) of the gp200 gene, which encodes the largest major immunoreactive protein in E. canis, from 17 Taiwanese samples was conducted. The resultant 16S rDNA sequences were found to be identical to each other and have very high homology (99.4~100%) with previously reported E. canis sequences. Additionally, phylogenetic analysis of gp200 demonstrated that the E. canis Taiwanese genotype was genetically distinct from other reported isolates obtained from the United States, Brazil, and Israel, and that it formed a separate clade. Remarkable variations unique to the Taiwanese genotype were found throughout the deduced amino acid sequence of gp200, including 15 substitutions occurring in two of five known species-specific epitopes. The gp200 amino acid sequences of the Taiwanese genotype bore 94.4~94.6 identities with those of the isolates from the United States and Brazil, and 93.7% homology with that of the Israeli isolate. Taken together, these results suggest that the Taiwanese genotype represents a novel strain of E. canis that has not yet been characterized.

The Determinants of Self-Management in Patients with Diabetic Nephropathy under the eHealth care Era

Yu-Shan Huang,Chia-En Li,Yu-Chi Chen 한국간호과학회 2023 한국간호과학회 학술대회 Vol.2023 No.11

Folic Acid in Stroke Prevention in Countries without Mandatory Folic Acid Food Fortification: A Meta-Analysis of Randomized Controlled Trials

Chia-Yu Hsu,Shao-Wen Chiu,Keun-Sik Hong,Jeffrey L. Saver,Yi-Ling Wu,Jiann-Der Lee,Meng Lee,Bruce Ovbiagele 대한뇌졸중학회 2018 Journal of stroke Vol.20 No.1

Background and Purpose Additional folic acid (FA) treatment appears to have a neutral effect on reducing vascular risk in countries that mandate FA fortification of food (e.g., USA and Canada). However, it is uncertain whether FA therapy reduces stroke risk in countries without FA food fortification. The purpose of this study was to comprehensively evaluate the efficacy of FA therapy on stroke prevention in countries without FA food fortification. Methods PubMed, EMBASE, and clinicaltrials.gov from January 1966 to August 2016 were searched to identify relevant studies. Relative risk (RR) with 95% confidence interval (CI) was used as a measure of the association between FA supplementation and risk of stroke, after pooling data across trials in a random-effects model. Results The search identified 13 randomized controlled trials (RCTs) involving treatment with FA that had enrolled 65,812 participants, all of which stroke was reported as an outcome measure. After all 13 RCTs were pooled, FA therapy versus control was associated with a lower risk of any future stroke (RR, 0.85; 95% CI, 0.77 to 0.95). FA alone or combination of FA and minimal cyanocobalamin (≤0.05 mg/day) was associated with a lower risk of future stroke (RR, 0.75; 95% CI, 0.66 to 0.86) whereas combination of FA and cyanocobalamin (≥0.4 mg/day) was not associated with a lower risk of future stroke (RR, 0.95; 95% CI, 0.86 to 1.05). Conclusions FA supplement reduced stroke in countries without mandatory FA food fortification. The benefit was found mostly in patients receiving FA alone or combination of FA and minimal cyanocobalamin.

Assessing the Impact of Mindfulness-Based Interventions (MBIs) on Informal Caregivers of Palliative Care Patients: A Comprehensive Review

Yu-Chia Chang,Chang-Ta Hsieh,Yun-Chen Chang,Wen-Yu Hu 한국간호과학회 2023 한국간호과학회 학술대회 Vol.2023 No.11

An Adaptive Robust LMS Employing Fuzzy Step Size and Partial Update in Dynamic-Fading Multipath Channels

Chia-Chang Hu,Hsuan-Yu Lin,Yu-Fan Chen,Jyh-Hong Wen 대한전자공학회 2005 ITC-CSCC :International Technical Conference on Ci Vol.2005 No.3

Delay of Surgery for Spinal Metastasis due to the COVID-19 Outbreak Affected Patient Outcomes

Chia-Jung Hsieh,Chun-Yu Wu,Yen-Heng Lin,Yu-Cheng Huang,Wen-Chi Yang,Tom Wei-Wu Chen,Wei-Li Ma,Wei-Hsin Lin,Feng-Ming Hsu,Furen Xiao,Shih-Hung Yang,Dar-Ming Lai,Chang-Mu Chen,Shin-Yi Chao,Fon-Yih Tsuan 대한척추신경외과학회 2023 Neurospine Vol.20 No.4

Objective: The present study is to analyze the effects of the coronavirus disease 2019 (COVID 2019) outbreak and the subsequent lockdown on the outcomes of spinal metastasis patients. Methods: The study was a retrospective analysis of data from a prospective cohort study. All patients underwent surgical intervention for spinal metastases between January 2019 and December 2021 and had at least 3 months of postoperative follow-up. The primary outcome was overall mortality during the 4 different stages (pre-COVID-19 era, COVID-19 pandemic except in Taiwan, national lockdown, lifting of the lockdown). The secondary outcomes were the oncological severity scores, medical/surgical accessibility, and patient functional outcome during the 4 periods as well as survival/mortality. Results: A total of 233 patients were included. The overall mortality rate was 41.20%. During the Taiwan lockdown, more patients received palliative surgery than other surgical methods, and no total en bloc spondylectomy was performed. The time from surgeon visit to operation was approximately doubled after the COVID-19 outbreak in Taiwan (75.97, 86.63, 168.79, and 166.91 hours in the 4 periods, respectively). The estimated survival probability was highest after the national lockdown was lifted and lowest during the lockdown. In the multivariate analysis, increased risk of mortality was observed with delay of surgery, with emergency surgery having a higher risk with delays above 33 hours, urgent surgery (below 59 and above 111 hours), and elective surgery (above 332 hours). Conclusion: The COVID-19 pandemic and related policies have altered daily clinical practice and negatively impacted the survival of patients with spinal metastases.