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Technical Assistive Aids Acceptability and Solvency International Tendancies
Chantal Ammi,Joel Agboton 한국과학기술원 인간친화 복지 로봇 시스템 연구센터 2001 International Journal of Assistive Robotics and Me Vol.2 No.4
The market of dependence is changing thesedays: the rising number of disabled and elderly contribute to a new demand. Face to this demand, we offer to try to develop new products or to adapt existing ones to best satisfy the user needs. However, some problems remain, such as: - the knowledge of the needs and the necessary adaptation of the interfaces for better access - the costs and the financial contributions - the size of the market and the necessary research of opportunities
Removal of phosphate from water using calcium rich organic waste
( Chantal Kamashazi ),( Seong-jik Park ) 한국농공학회 2018 한국농공학회 학술대회초록집 Vol.2018 No.-
Removal of phosphate from water to the natural eggshells and oyster shells were studied. The influence of pH, temperature and contact time was investigated. Removing phosphate from water is necessary as it causes eutrophication; which in return harm the aquatic life and this result to the reduction of biodiversity. The adsorption method was applied to study the capacity of natural eggshells and oyster shells in removing phosphate from water. The kinetic models were performed where the pseudo second order equation showed the best fit in removing phosphate to the natural eggshells at low concentration. Adsorption of phosphate at different pH (4, 6, 8, and 10) showed the big change at pH 8 and10 and the percent removal was closely same. At 298 and 308 K the removal capacity increased more than at 288K. In the kinetic experiments as the time increases to 24 hours also the adsorption of phosphate increases slightly. If the natural eggshells are showing the quality of removing phosphate from water at low concentration then the modified one will greatly show the change at high concentration. Therefore, according to the results analyzed in this present work; waste eggshells and oyster shells would be possibly suggested as environmentally friendly and low cost adsorbents for removing phosphate from water.
A Collaborative Requirements Elicitation Model For Crowdsourcing Platforms
Chantal Mukundwa,Seok-Won Lee(이석원) 한국컴퓨터정보학회 2019 韓國컴퓨터情報學會論文誌 Vol.24 No.3
Crowdsourcing is growing its interests in designing where various designers work independently to a given design task. Recent researchers discovered that collaboration by sharing designs among designers helps to produce high-quality designs. However, design task may still be hard even with that collaboration in case the requirements are not well-defined. Most customers sometimes do not know what they really want and do not know how to clearly define the requirements. Consequently, the lack of requirements creates issues on designers, such as spending much time and effort on collecting requirements alone or from the customers. The designers even end up missing important necessities to complete their tasks. To address this issue, we proposed a collaborative requirements elicitation method that supports designers who are working on the same task. We developed CREFD (Collaborative Requirements Elicitation For Designers and Developers) tool to enable designers collaboratively provide requirements, identify dependencies, add annotations and votes to the provided requirements. We performed the hypothetical and empirical evaluations to test and compare the proposed method with one of the existing elicitation methods, the results show that the proposed method helps in collecting accepted and well-organized requirements better than individual requirements elicitation.
Economic Effects of Agricultural Biotechnology Research in the Presence of Price-Distorting Policies
( Kym Anderson ),( Chantal Nielsen ) 세종대학교 경제통합연구소 (구 세종대학교 국제경제연구소) 2004 Journal of Economic Integration Vol.19 No.2
The economic welfare implications of some countries using new genetically modified varieties in crop production will depend on which countries choose to adopt them and on whether others (notably Western Europe) ban their importation. They also depend on existing (non-GMO-specific) agricultural policies in affected markets. This paper uses a well-received empirical economywide model of the global economy (GTAP) to quantify the effects of selected countries enjoying an assumed degree of productivity growth from adopting GMO maize and soybean. It does so first by leaving existing distortionary policies in place and then assuming agricultural policies in Western Europe are completely liberalised. In both cases we investigate the effects of Western Europe refraining from using GMO technology in its own farm production but without versus with a ban on imports of GM products. The results suggest that (a) such an import ban would have a large adverse effect on economic welfare, particularly in Western Europe itself, and (b) while estimated global economic welfare benefits from the new biotechnology are not greatly reduced by Europe`s traditional price-distorting policies, the reductions in technology gains are concentrated in non-European countries.
김지윤,최지민,Chantal A. Vella,Michael H. Criqui,Matthew A. Allison,김남훈 대한당뇨병학회 2022 Diabetes and Metabolism Journal Vol.46 No.5
Background: The weight-adjusted waist index (WWI) reflected body compositional changes with aging. This study was to investigate the association of WWI with abdominal fat and muscle mass in a diverse race/ethnic population.Methods: Computed tomography (CT) data from 1,946 participants for abdominal fat and muscle areas from the Multi-Ethnic Study of Atherosclerosis (785 Whites, 252 Asians, 406 African American, and 503 Hispanics) were used. Among them, 595 participants underwent repeated CT. The WWI was calculated as waist circumference (cm) divided by the square root of body weight (kg). The associations of WWI with abdominal fat and muscle measures were examined, and longitudinal changes in abdominal composition measures were compared.Results: In all race/ethnic groups, WWI was positively correlated with total abdominal fat area (TFA), subcutaneous fat area, and visceral fat area, but negatively correlated with total abdominal muscle area (TMA) and abdominal muscle radiodensity (<i>P</i><0.001 for all). WWI showed a linear increase with aging regardless of race and there were no significant differences in the WWI distribution between Whites, Asians, and African Americans. In longitudinal analyses, over 38.6 months of follow-up, all abdominal fat measures increased but muscle measures decreased, along with increase in WWI. The more the WWI increased, the more the TFA increased and the more the TMA decreased.Conclusion: WWI showed positive associations with abdominal fat mass and negative associations with abdominal muscle mass, which likely reflects the abdominal compositional changes with aging in a multi-ethnic population.
Computed Tomography-Derived Myosteatosis and Metabolic Disorders
Iva Miljkovic,Chantal A. Vella,Matthew Allison 대한당뇨병학회 2021 Diabetes and Metabolism Journal Vol.45 No.4
The role of ectopic adipose tissue infiltration into skeletal muscle (i.e., myosteatosis) for metabolic disorders has received considerable and increasing attention in the last 10 years. The purpose of this review was to evaluate and summarize existing studies focusing on computed tomography (CT)-derived measures of myosteatosis and metabolic disorders. There is consistent evidence that CT-derived myosteatosis contributes to dysglycemia, insulin resistance, type 2 diabetes mellitus, and inflammation, and, to some extent, dyslipidemia, independent of general obesity, visceral fat, and other relevant risk factors, suggesting that it may serve as a tool for metabolic risk prediction. Identification of which muscles should be examined, and the standardized CT protocols to be employed, are necessary to enhance the applicability of findings from epidemiologic studies of myosteatosis. Additional and longer longitudinal studies are necessary to confirm a role of myosteatosis in the development of type 2 diabetes mellitus, and examine these associations in a variety of muscles across multiple race/ethnic populations. Given the emerging role of myosteatosis in metabolic health, well-designed intervention studies are needed to investigate relevant lifestyle and pharmaceutical approaches.