• Title/Summary/Keyword: External Effect

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A Study on Designing a Proper External Shading Device to Diminish the Cooling Load of a Transparent Glazing Office Building (투명 유리 사무소 건물의 냉방부하 감소를 위한 적정 외부차양 배치에 관한연구)

  • Yim, Sang-Joon;Seo, Hye-Soo;Kim, Byung-Seon
    • KIEAE Journal
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    • v.2 no.4
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    • pp.21-26
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    • 2002
  • Modem architecture represent a great capitalistic, polishing, high-technology image to the public by design. As a result, glass architecture which show 'transmittance' in desinging play a leading part, consequently a role of machine is increasing in controlling an internal environment of building. These movement look like assisting an universal standard building disregarding a each nation's climate peculiarity, if glass building is applied by a proper external shading device. the shading device has a great effect on the reduction of cooling load energy, this research to propose the proper designing scheme of the fixed external shading device. The effect of proper external shading device on the cooling load is evaluated by the numeric simulation.

An empirical analysis based on organizational members' perceptions about the effects of antecedents to the external knowledge network on product and service innovations : on the basis of the open innovation perspective (조직 구성원들이 인식하는 자사의 외부 지식 네트워크 구축의 선행요인들이 제품 및 서비스 혁신에 미치는 영향에 관한 실증분석 : 개방형 혁신의 관점을 기반으로)

  • Hau, Yong Sauk;Kang, Minhyung
    • Knowledge Management Research
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    • v.14 no.3
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    • pp.87-100
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    • 2013
  • As the external knowledge networks of firms have become more and more important to their product and service innovations, many global leading companies such as P & G, IBM, and Samsung Electronics have formulated and implemented their open innovation strategy. This study attempts to empirically analyze the effects of CEOs' supports for external knowledge networks, external knowledge network-oriented cultures and inter-organizational knowledge management systems as the major antecedents to external knowledge networks by using the data based on organizational members' perceptions about them. Based on 847 samples collected from employees in three companies in the medical, the construction and the IT service industries, this study performed a structural equation modeling (SEM) analysis about the effects of the antecedents to the external knowledge networks on product and service innovations through Partial Least Squares (PLS). The empirical findings of this study show that CEOs' supports for external knowledge network positively influence product and service innovations, partially mediated by external knowledge network-oriented cultures and inter-organizational knowledge management systems. And they also show that external knowledge network-oriented cultures and inter-organizational knowledge management systems have a positive effect on product and service innovations, respectively, partially mediated by external knowledge networks. With these new findings, academic and practical implications are discussed.

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Interaction of External Family Support and Economic Pressure on Marital Satisfaction Under the Economic Crisis (경제적 위기 상황에서 결혼 만족도에 대한 가족 외부 지원과 경제적 압박의 상호작용 효과)

  • Kwon, Hee-Kyung
    • Journal of Families and Better Life
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    • v.27 no.5
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    • pp.59-68
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    • 2009
  • External social support for family can be an important resource for families to overcome economic pressure, and can be a way to understand the concept and process of family resilience in the context of Korean economic crisis. To explore the role of external social support that alleviates the negative effects of economic pressure on marital satisfaction, the buffering effects were tested in two ways. First, the interaction effect between external social support and economic pressure on marital satisfaction was tested using hierarchical linear regression model. Second, the scores of marital satisfaction were plotted by the median scores of economic pressure and external social support. Results from the analyses of 191 couples (382 husbands and wives) indicated that external social support help families by buffering the negative effects of economic pressure on marital satisfaction by interacting with economic pressure.

The Causality among the Internal Customer Satisfaction, the External Customer Satisfaction and the Customer Loyalty of Medical Service (의료서비스의 내부고객만족, 외부고객만족 및 고객애호도의 인과관계)

  • Paik, Soo-Kyung
    • Journal of Preventive Medicine and Public Health
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    • v.35 no.3
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    • pp.236-244
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    • 2002
  • Objective : To empirically investigate the relationship of internal and external customer satisfactions, service quality, and customer loyalty in medical services. Methods : This essay proposes an integrated model to explain the causality of internal and external customer satisfactions, service quality, and customer loyalty. To this end, a structural model was developed, consisting of the following factors: internal and external customer satisfactions, service quality, and customer loyalty. The study included 214 sets of data, with 107 sets being collected for both out-patients and in-patients. The data were analyzed using AMOS 4.0. Results : We found the greater the internal customer satisfaction, the greater the out-patient quality of service quality. Secondly, the greater the service quality, the greater the external customer satisfaction of both in- and out-patients. The service quality of doctors, compared to that of the nurses, had a greater effect on external customer satisfaction. Thirdly, the service quality of doctors and nurses affected both internal and external customer satisfactions, which ultimately affected the customer loyalty. Finally the greater the external customer satisfaction, the greater the customer loyalty. Conclusion : This Study confirms the positive relationship among the internal and external customer satisfactions, service quality, and customer loyalty, which proves the doctors quality of service is the primary factor for external satisfaction, and customer loyalty relating to medical services.

An Experimental Study of the Anti-oxidant and the Anti-inflammatory Effects of Alum and Burnt Alum

  • Seo, Hyung-Sik
    • Journal of Pharmacopuncture
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    • v.15 no.2
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    • pp.11-14
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    • 2012
  • Objectives: The purpose of this study was to compare the antioxidant and anti-inflammatory effects of Alum (AL) and Burnt Alum (BAL), which are commonly used as external ointments. Methods: Extracts of AL and BAL were classified into three groups: 20, 50, and $100mg/{\mu}{\ell}$. The cytotoxicity was measured by using MTT assays in human keratinocyte cell line (HaCaT). The anti-oxidant effect was measured by using the DPPH (1, 1-diphenyl-2-picryl-hydrazyl-hydrate) radical scavenger. The anti-inflammatory effect was measured by using the inhibitory efficacy for the amount of nitric-oxide (NO) produced in mouse macrophage cell line (RAW 264.7). Results: BAL showed a higher level of cytotoxicity than AL. The AL groups showed a concentration-dependent scavenging effect on DPPH radicals, but no significant relevance was found. The BAL groups showed a concentration-dependent scavenging effect on DPPH radicals. The scavenging effects of the BAL groups were almost insignificant, but the values for the 20, 50, and $100{\mu}g/m{\ell}$ trials were different. The BAL groups showed significant concentration-dependent inhibitory effects on NO production, but the AL groups did not. Conclusions: AL showed an anti-oxidant effect more efficiently than BAL did, which demonstrated a superior anti-inflammatory effect. Therefore, for external usage, AL must be distinguished from BAL.

The Effect of External-rotation Reducing Exercise on the Gait of Patient with Hemiplegia (편마비 환자의 보행에 대한 외회전 감소운동의 효과)

  • Kim, Ah-Ram;Park, Cheol-Ju;Ryu, In-Jeong;Choi, Jeong-Wook;Hyun, Ju-Hyup;Cho, Nam-Jung;Yoo, Byung-Kook;Jeong, Jong-Hee;Lee, Ho-Jun
    • Journal of the Korean Academy of Clinical Electrophysiology
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    • v.6 no.1
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    • pp.69-79
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    • 2008
  • In this paper, the effects of the external-rotation exercise on the gait of hemiplegia was investigated. 26 patients with hemiplegia due to cerebrovascular accident participated in this study. Subjects were randomly assigned to experimental group(n=12) and control one(n=14). 12 subjects of the experimental group were received the external rotation reducing exercise on the mat with seating and supine posture after the general therapeutic exercise for hemiplegia. 14 subjects of the control group were received only general therapeutic exercise. The effects of external rotation reducing exercise were evaluated by measurements of gait velocity, cadence, stride length, step length and foot angle using ink-foot prints. The collected data were analyzed statistically based on Wilcoxon, Mann-Whitney and correlation analysis. After treatment of three weeks, it turned out that external rotation reducing exercise has the significant effect on foot angle(p<0.01). However the exercise has no statistically significant direct effect on the gait velocity, cadence, stride length and step length.

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SMEs' External Technology Collaboration Network Diversity and Productivity Improvement : The Moderating Effect of the Chief Technology Officer-Driven Technology Development (중소기업의 외부 기술협력 네트워크의 다양성과 생산성 향상 : 최고기술경영자가 주도하는 기술 개발의 조절효과)

  • Hau, Yong Sauk
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.40 no.2
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    • pp.99-103
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    • 2017
  • Productivity improvement is one of the important goals which firms' technology developments aim at. Firms' improved productivity from technology development means that their inputs can produce more outputs through technology development, which makes firms' productivity improvement from technology development more and more important in the age of technology advance and convergence like today. This research empirically analyzes the influence of the external technology collaboration network diversity on the productivity improvement of the small and medium-sized enterprises (SMEs) from technology development and the moderating effect of the chief technology officer (CTO)-driven technology development on this influence. This study constructs the research model reflecting the moderating impact of the CTO-driven technology development and tests it with the ordinary least squares regression through the IBM SPSS version 23 by using the 2,000 data about South Korean SMEs. This research empirically reveals two points. One is that SMEs' external technology collaboration network diversity has a positive influence on their productivity improvement from technology development. The other is that the positive effect of SMEs' external technology collaboration network diversity on their productivity improvement from technology development is moderated by the CTO-driven technology development. The two points revealed in this study present two meaningful implications in not only the practical but also academic point of view. The practical implication is that it is effective for SMEs to use CTOs in increasing their productivity improvement from technology development. The academic implication is that making technology collaboration with more diverse external partners can increase SMEs' productivity improvement from technology development.

How Vulnerable is Indonesia's Financial System Stability to External Shock?

  • Pranata, Nika;Nurzanah, Nurzanah
    • The Journal of Asian Finance, Economics and Business
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    • v.4 no.2
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    • pp.5-17
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    • 2017
  • The main objective of the study is to measure the vulnerability of Indonesia's financial system stability in response to external shocks, including from regional economies namely three biggest Indonesia major trading partners (China, the U.S and Japan) and other external factors (oil price and the federal funds rate). Using Autoregressive Distributed Lag (ARDL) model and Orthogonalized Impulse Response Function (OIRF) with quarterly data over the period Q4 2002 - Q1 2016, results confirm that, 1) oil price response has the largest effect to Indonesia financial stability system and the effect period is the longest compared to others, represented by NPL and IHSG; 2) among those three economies, only China's economic growth has significantly positive effect to Indonesia financial stability system. Based on the findings it is better for the authorities to: 1) Diversify international trade commodities by decreasing share of oil, gas, and mining export and boosting other potential sectors such as manufacture, and fisheries; 2) Ensure the survival of Indonesia large coal exporter companies without neglecting burden of national budget; and 3) Create buffer for demand shock from specific countries by diversifying and increasing share of trading from other countries particularly from ASEAN member states.

Effect of erector spinae and quadratus lumborum kinesio taping and support surface conditions on abdominal muscle activity during plank exercise (플랭크 운동 시 척추세움근과 허리네모근 키네시오 테이핑 적용 및 지지면 조건이 복부 근 활성도에 미치는 영향)

  • Kim, Dong Hoon
    • Journal of Korean Physical Therapy Science
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    • v.29 no.1
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    • pp.55-63
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    • 2022
  • Background: This study investigated the effect of erector spinae and quadratus lumbar kinesio taping and support surface conditions on abdominal muscle activity during plank exercise. Design: Within-Group design. Methods: A total of twenty-three healthy men and women participated in this study. Abdominal muscle (both external obliques and internal oblique muscle) contraction was analyzed through EMG measurement with the presence or absence of kinesio taping applied to the erector spinae muscle and quadratus lumborum muscle during plank exercise and the difference between the support surfaces (stable surface and unstable surface) as variables. Abdominal EMG was attached to the right external oblique, left external oblique, right internal oblique, and left internal oblique. Results: The results showed that Abdominal left and right external obliques and internal obliques showed significant increases in activity when kinesio taping was applied to the erector spinae and quadratus lumborum muscles and unstable ground (p<0.05). Conclusion: In this study, we confirmed that the activity of the abdominal muscles was significantly increased during the plank operation in the state where the kinesio tape was attached. In addition, it was confirmed that the activity of the abdominal muscles was significantly increased during the plank operation on the unstable surface. These results suggest that in the state of kinesio tape attached and instability, plank motion has a positive effect on abdominal muscle activity.

Evaluation of Reinforcement Effect of Deteriorated PSC Beam through Cutting Its External Tendons (외부강선 파단실험을 통한 노후 PSC 교량의 보강효과 평가)

  • Park, Chang-Ho;Lee, Byeong-Ju;Lee, Won-Tae;Ku, Bon-Sung
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.9 no.3
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    • pp.178-186
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    • 2005
  • In this study, the PSC girder bridge retrofitted with external tendons is tested to verify the strengthening effects. We measure the variations of the displacement and strain at mid-span of each beam as external tendons are removed in sequence. The structural behavior of the bridge are examined using controlled truck load tests for the systems before and after all external tendons were removed. From the test results, the characteristics of structural behavior of the bridge do not change significantly, but the natural frequency is decreased after the external tendons are removed. The strengthening effects of bridges can be exactly estimated by analytical methods some extent. As a result of this study, when a PSC girder bridge is deteriorated, the bridge can be retrofitted effectively by External Prestressing Strengthening Method, and the strengthening effects can be predicted through accurate structural analysis.