• 대한물리치료과학회지
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• 제10권2호
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• pp.131-136
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• 2003

The purpose of this study was to investigate the effect of body composition on IADL (Instrumental Activities of Daily Living) of the elderly. This study consisted of male elder(n=50) and female elder(n=60). The average age of elder male and female was 73.79, 70.42 years. The data were analyzed with correlation test and regression test using SPSSWIN ver 10.1 and MINITAB program. Body composition was measured using InBody 3.0(seoul, korea) of Segmental Multifrequncy Bioelectical Impedance Analyzer technique. IADL was measured with Philadelphia Geriatric Center IADL. The result of this study were the following : A correlation of body composition between IADL. 1. Body composition of the elderly had effect on IADL. 1)The free fat mass(kg) and total body water(1) in Body composition of male elder had positive effect on IADL. 2)The WHR(waist-to-hip ratio %) in Body composition of male elder had negative effect on IADL.

• The Journal of Asian Finance, Economics and Business
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• 제10권2호
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• pp.163-174
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• 2023

This study aims to investigate the effect of the composition of the board and ownership structure on a firm's value in Jordanian firms. Specifically, it aims to determine the effect of board size, (CEO) duality, and family, foreign, institutional, and government ownership on a firm's value. An ordinary least square regression (OLS) was employed to examine the study hypotheses in a sample of 35 Jordanian industrial firms (175 firm-year observation) for a period of five years from 2016-2020. As measured by Tobin's Q (Q ratio) and market-to-book (MB ratio) for Jordanian industrial firms listed on Amman Stock Exchange (ASE). The result found that foreign ownership, institutional ownership, and family ownership have a significant and positive effect on firm value. By contrast, government ownership does not have a significant effect on firm value. With respect to board composition (CEO duality and board size), the study results found no evidence to support the effect of board composition on firm value. The study recommended the concerned authorities with several recommendations, most notably: taking the necessary measures to ensure the continuity and growth of family businesses because of their positive impact on the value of the company and economic growth, spreading awareness about how governance protects the interests of investors.

• 한국분말재료학회지
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• 제26권1호
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• pp.22-27
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• 2019

In this study, the effects of powder size and composition on the reflectance of Al-Si based alloys are presented. First, the reflectance of Al-Si bulk and powder are analyzed to confirm the effect of powder size. Results show that the bulk has a higher reflectance than that of powder because the bulk has lower surface defects. In addition, the larger the particle size, the higher is the reflectance because the interparticle space decreases. Second, the effect of composition on the reflectance by the changing composition of Al-Si-Mg is confirmed. Consequently, the reflectance of the alloy decreases with the addition of Si and Mg because dendrite Si and $Mg_2Si$ are formed, and these have lower reflectance than pure Al. Finally, the reflectance of the alloy is due to the scattering of free electrons, which is closely related to electrical conductivity. Measurements of the electrical conductivity based on the composition of the Al-Si-Mg alloy confirm the same tendency as the reflectance.

• Journal of Nutrition and Health
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• 제23권7호
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• pp.477-491
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• 1990

To observe the effect of dietary n6 linoleic acid, n6 gamma-linolenic acid and n3 alphalinolenic acid aon plasma lipid composition and platelet aggregation, twenty college women were divided into 4 groups and treated for 2 weeks with experimental diets supplying fat at 23% cal which were different only in fatty acid composition. Dietary fat was corn oil(CO) as a source of n6 linoleic acid(LA), perilla oil(PO) for n3 alpha-linolenic acid(ALA) and evenign primrose oil(EPO) for n6 gamma-linolenic acid(GLA). Plasma cholesterol level was slightly decreased by PL(13.5g) but significantly increased by equal amount of CO. However, there was similar hypocholeaterolemic effect when double amount of CO(27.0g), was supplemented. Therefore, total fat unsaturation may be more important factor for plasma cholesterol-lowering effect than the structure of fatty acid itself. Plasma cholesterol level was not lowered by supplement of GLA in CO diet. There was similar trend in hypotriglyceridemic effect by PO and CO as in plasma cholesterol. Plasma TG level was rather increased but not significantly by GLA supplement to CO diet. Overall, plasma lipid-lowering effect was greater by ALA than LA and GLA effect was not greater than by LA. GLA supplement did not significantly improve lipid compositions to prevent against CHD. There was no significant change both in fatty acid composition in platelet and ADP-induced platelet aggregation by GLA supplement to corn oil diet and by ALA in PO diet in young women.

• 한국가스학회지
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• 제11권2호통권35호
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• pp.1-4
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• 2007

가스는 산지에 따라 그 조성이 다르며, 이러한 가스조성의 변화는 가스 배관망 내 발생하는 압력손실 값에 영향을 미치므로 매우 중요한 고려 요소이다. 그러므로 평균 가스조성(비중) 대신 각 인입지점으로 인입되는 가스가 실제로 가지고 있는 가스조성을 사용하는 것이 배관망 해석 수행 시 더욱 정확한 결과를 얻을 수 있다. 본 연구에서는 가스 배관망에서 인입지점으로 인입되는 가스 조성을 평균값이 아닌 실제 조성을 사용할 경우 소비자에게 가스를 공급하는 공급지점의 공급압력에 미치는 영향을 분석하였다. 본 연구결과를 비교하기 위하여 각 인입지점의 가스조성을 평균하여 모든 인입지점의 가스조성으로 동일하게 사용하여 산출된 압력 값을 사용하였다. 그 결과, 실제 가스조성 고려 시 공급압력에 미치는 영향은 상당한 수준이므로 천연가스 산업현장의 공급 배관망에 대한 배관망해석 수행 시 실제의 가스조성을 반드시 고려하여야 정확한 분석결과를 얻을 수 있음을 알 수 있었다.

• 한국세라믹학회지
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• 제37권5호
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• pp.453-458
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• 2000

Glasses showing the composition of blast furnace slag were made in the laboratory, and the effect of the chemical composition on the latent hydraulic activity of the slags was examined. The latent hydraulicity was greatly influenced by the composition change, the optimal characteristic of the hydraulicity was achieved at the slag composition of 47CaO:20Al2O3:33SiO2. The content of CaO and Al2O3 were not equivalent to the hydraulic activity of the slags as the b-formula (KS L 5210) indicates. Good latent hydraulicity was shown when Al2O3 was richly contained at the high (CaO＋Al2O3):SiO ratio, while the more the MgO content was, the more negative the result turned out.

• 한국기술혁신학회:학술대회논문집
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• 한국기술혁신학회 2017년도 추계학술대회 논문집
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• pp.1213-1244
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• 2017

This study used a resource-based perspective to analyse the effects of organizational composition on the R&D performance of science and technology government-funded research institutes (GFRIs). We assumed that the composition of each GFRI would eventually be regarded as absorptive capacity and act as a moderating variable between R&D investment and performance. We used a panel generalized least squares (GLS) model with fixed effects to analyse panel data from 115 Korean GFRIs between 2011 and 2015. Our findings show that R&D investment of GFRIs has a direct and positive effect on performance. We also analysed how organizational composition can moderate the effect of R&D investment on performance. The findings provide evidence that organizational composition plays a moderating role between R&D investment and performance. Finally, this study discusses policy implications, its limitations, and also highlights future research directions.

• Journal of Ginseng Research
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• 제38권2호
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• pp.106-115
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• 2014

Background: Gut microbiota is regarded as one of the major factors involved in the control of body weight. The antiobesity effects of ginseng and its main constituents have been demonstrated, but the effects on gut microbiota are still unknown. Methods: To investigate the effect of ginseng on gut microbiota, 10 obese middle-aged Korean women took Panax ginseng extracts for 8 wk and assessment of body composition parameters, metabolic biomarkers, and gut microbiota composition was performed using 16S rRNA gene-based pyrosequencing at baseline and at 8 wk. Significant changes were observed in body weight and body mass index; however, slight changes were observed in gut microbiota. We divided the participants into two groups, the effective and the ineffective weight loss groups, depending on weight loss effect, in order to determine whether the antiobesity effect was influenced by the composition of gut microbiota, and the composition of gut microbiota was compared between the two groups. Results: Prior to ginseng intake, significant differences of gut microbiota were observed between both at phyla and genera and the gut microbiota of the effective and ineffective weight loss groups was segregated on a principal coordinate analysis plot. Conclusion: Results of this study indicate that ginseng exerted a weight loss effect and slight effects on gut microbiota in all participants. In addition, its antiobesity effects differed depending on the composition of gut microbiota prior to ginseng intake.

• International Journal of Naval Architecture and Ocean Engineering
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• 제11권2호
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• pp.914-922
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• 2019

Gas composition has a significant impact on the dispersion behavior and accumulation characteristics of blowout gas. However, few public studies has investigated the corresponding effect of gas composition. Therefore, this study firstly builds the FLACS-based numerical model about an offshore drilling platform. Then several scenarios by varying the composition of blowout gas are simulated while the scenario with the composition of "Deepwater Horizon" accident is regarded as the benchmark. Furthermore, the effects of the gas composition on the flammable cloud volume, the influenced area of flammable cloud, the influenced area of hydrogen sulfide and the critical time of the hydrogen sulfide spreading to the living area are analyzed. The results demonstrate that gas composition is a driving factor for dispersion characteristics of blowout gas. All the results can give support to reduce the risk of the similar accidents incurred by real blowouts.

• 한국분말야금학회:학술대회논문집
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• 한국분말야금학회 2006년도 Extended Abstracts of 2006 POWDER METALLURGY World Congress Part 1
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• pp.561-562
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• 2006

The effect of chemical composition of the sintering atmosphere on density, microstructure and mechanical properties of Fe-3%Mn-(Cr)-(Mo)-0.3%C steels is described. Pre-alloyed Astaloy CrM and CrL, ferromanganese and graphite were used as the starting powders. Following pressing in a rigid die, compacts were sintered at 1120 and $1250^{\circ}C$ in atmospheres having different $H_2/N_2$ ratio and furnace cooled to room temperature. It has been found that the atmosphere composition has negligible effect on the as-sintered properties of the investigated materials.