• 제목/요약/키워드: ASPECTS

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Ten technical aspects of baseplate fixation in reverse total shoulder arthroplasty for patients without glenoid bone loss: a systematic review

  • Reinier W.A. Spek;Lotje A. Hoogervorst;Rob C. Brink;Jan W. Schoones;Derek F.P. van Deurzen;Michel P.J. van den Bekerom
    • Clinics in Shoulder and Elbow
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    • 제27권1호
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    • pp.88-107
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    • 2024
  • The aim of this systematic review was to collect evidence on the following 10 technical aspects of glenoid baseplate fixation in reverse total shoulder arthroplasty (rTSA): screw insertion angles; screw orientation; screw quantity; screw length; screw type; baseplate tilt; baseplate position; baseplate version and rotation; baseplate design; and anatomical safe zones. Five literature libraries were searched for eligible clinical, cadaver, biomechanical, virtual planning, and finite element analysis studies. Studies including patients >16 years old in which at least one of the ten abovementioned technical aspects was assessed were suitable for analysis. We excluded studies of patients with: glenoid bone loss; bony increased offset-reversed shoulder arthroplasty; rTSA with bone grafts; and augmented baseplates. Quality assessment was performed for each included study. Sixty-two studies were included, of which 41 were experimental studies (13 cadaver, 10 virtual planning, 11 biomechanical, and 7 finite element studies) and 21 were clinical studies (12 retrospective cohorts and 9 case-control studies). Overall, the quality of included studies was moderate or high. The majority of studies agreed upon the use of a divergent screw fixation pattern, fixation with four screws (to reduce micromotions), and inferior positioning in neutral or anteversion. A general consensus was not reached on the other technical aspects. Most surgical aspects of baseplate fixation can be decided without affecting fixation strength. There is not a single strategy that provides the best outcome. Therefore, guidelines should cover multiple surgical options that can achieve adequate baseplate fixation.

강원 양양군 취락의 지형적 입지조건과 공간 구성에 대한 연구 (A Study of geographical location conditions and the spatial composition of a community in Yangyang-Kun(County), Kangwon Province)

  • 조원석;김효남
    • 한국농촌건축학회논문집
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    • 제5권1호
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    • pp.12-21
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    • 2003
  • In this study, I have summarized the geographical location conditions according to geographical position where communities locate and I have classified the spatial composition factors into size factor and the line factor. This was accomplished through field research and comparison and analysis of pertinent literature. Then, I have discussed the geographical location conditions and the characteristics of the spatial composition of a particular community. Finally, I have pointed out that the similarities and dissimilarities of the spatial composition factors of a certain community with locational aspects, geographical aspects, and occupational aspects, can be considered.

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인체 심혈관계의 이론적 분석을 위한 시스템 시뮬레이션모델에 관한 연구 (Systemic Simulation Models for the Theoretical Analysis of Human Cardiovascular System)

  • 고형종;윤찬현;심은보
    • 제어로봇시스템학회논문지
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    • 제10권12호
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    • pp.1181-1188
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    • 2004
  • This paper reviews the main aspects of cardiovascular system dynamics with emphasis on modeling hemodynamic characteristics using a lumped parameter approach. Methodological and physiological aspects of the circulation dynamics are summarized with the help of existing mathematical models: The main characteristics of the hemodynamic elements, such as the heart and arterial and venous systems, are first described. Lumped models of micro-circulation and pulmonary circulation are introduced. We also discuss the feedback control of cardiovascular system. The control pathways that participate in feedback mechanisms (baroreceptors and cardiopulmonary receptors) are described to explain the interaction between hemodynamics and autonomic nerve control in the circulation. Based on a set-point model, the computational aspects of reflex control are explained. In final chapter we present the present research trend in this field and discuss the future studies of cardiovascular system modeling.

A Study on Socio-technical System for Sustainability of the 4th Industrial Revolution: Machine Learning-based Analysis

  • Lee, Jee Young
    • International Journal of Internet, Broadcasting and Communication
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    • 제12권4호
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    • pp.204-211
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    • 2020
  • The era of the 4th industrial revolution is a complex environment in which the cyber world and the physical world are integrated and interacted. In order to successfully implement and be sustainable the 4th industrial revolution of hyper-connectivity, hyper-convergence, and hyper-intelligence, not only the technological aspects that implemented digitalization but also the social aspects must be recognized and dealt with as important. There are socio-technical systems and socio-technical systems theory as concepts that describe systems involving complex interactions between the environmental aspects of human, mechanical and tissue systems. This study confirmed how the Socio-technical System was applied in the research literature for the last 10 years through machine learning-based analysis. Eight clusters were derived by performing co-occurrence keywords network analysis, and 13 research topics were derived and analyzed by performing a structural topic model. This study provides consensus and insight on the social and technological perspectives necessary for the sustainability of the 4th industrial revolution.

복식사회.심리학분야의 연구경향 분석 I (An Analysis on the Research Trends of Social Psychological Aspects of Clothing)

  • 이인자
    • 복식
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    • 제30권
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    • pp.19-40
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    • 1996
  • The purpose of this study is to make and analyse established studies of clothing pay-chology and marketing, showing the disciplin-ary trends problems and the outlook of social psychological Aspects of clothing. To achieve the purpose 621 articles have been used. -519 for master's and doctor's de-gree and 102 reported in journals -no social psychological Aspects of clothing for the past two decades(1974-1994) in Korea. All of these annual data were classified into making five years a unit. In the statistical analy-sis 'frequency' and 'percentage' were applied. To verify the degree of significance x2-test were used. 1. The trend of the study on the fields of clothing psychology consumer behavior and marketing over the period between 1974 and 1994 showed the continual trend of increase since the 1974 that the article on the field of clothing the continual trend of increase since the 1974 that the article on the field of cloth-ing psychology was first reported. 2. The domain that has the greatest pro-portion in the field of clothing psychology is concerned with the individual psychological factor and the study concerning interpersonal perception and development the measurement tool showed the tendency to continue to in-creas.

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알코올문제의 사회적 의존에 대한 소고 (Social Dependence of Problem Drinking)

  • 김광기
    • 보건교육건강증진학회지
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    • 제12권2호
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    • pp.146-161
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    • 1995
  • This study is an effort to bring our attention to social dependence on alcohol, focusing on previous studies of drinking behaviors. Although drinking behavior and problems must be understood in a biopsychosocial framework, a certain aspect is often ignored in alcohol research. A few attention has been paid to social aspect of alcohol abuse or dependence. Social processes of drinking behavior deserve to have same attention as other aspects, psychological and physical aspects of the behavior. Literature show that the interdependence among group members exists to regulate individual's drinking behavior. Such social interactions tend to control drinking level for individual in terms of amounts, frequency, and preference. The drinking level tends to be dependent on desires for heavy drinkers, ignoring variabilities of individual's sensitivity to alcohol. However, such a heavy-oriented tendency in drinking behavior may have different patterns which are function of normative orientation of alcohol. negotiation among group members, and ethnoreligious characteristics. Perspectives from conflict tradition and symbolic interactionism are welcomed to illuminate multi-dimentional aspects of social dependence. Policy implication were discussed from public health perspective.

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Osteoporosis: New Biomedical Engineering Aspects

  • Singh, Kanika;Lee, Sung-Hak;Kim, Kyung-Chun
    • Journal of Mechanical Science and Technology
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    • 제20권12호
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    • pp.2265-2283
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    • 2006
  • There is tremendous interest of research which surrounds the concept of 'osteoporosis,' as shown by the intense and growing research activity in the field. The urgency to advance knowledge in this area is motivated by the need to understand not only the causes, diagnosis and treatment but also need for early identification or detection of this silent disease. Despite the various researches work is going on, important issues remain unresolved. In this paper, Osteoporosis has also been discussed with respect to biological, engineering, biochemical and physical aspects. The diagnostic and therapeutic techniques have been described for osteoporosis, for better health care. The novelty of the review paper lies in clarifying several myths, explaining the disease in details with biomedical engineering aspects and focuses on the several detection techniques, providing a new direction for early diagnosis of this deadly disease and gives new directions for the POCT device for Osteoporosis.

통합적 셀생산시스템 구축방법론에 관한 연구

  • 김효석;정윤호
    • 한국경영과학회:학술대회논문집
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    • 한국경영과학회 1997년도 추계학술대회발표논문집; 홍익대학교, 서울; 1 Nov. 1997
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    • pp.11-14
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    • 1997
  • Flexibility and efficiency in producing a large number of productions in small-to-medium lot sizes are necessary to be competitive. Many firms are concerned about cellular manufacturing system(CMS) to surmount the abrupt change in management environment and to innovate their manufacturing systems. The purpose of this study 1) align BPR with CMS, 2) present the methodology for constructing a CMS and 3) apply to a firm ad verify it. The results of this paper are to present 1) the systematic methodology for constructing CMS at first in our country, 2) the methodology integrating managerial aspects, technological aspects and behavioral aspects, 3) the customer-oriented methodology based on customer value.

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Studies on Port Development Strategy in Shanghai, China

  • Kim, Jin-Hwan
    • 유통과학연구
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    • 제15권1호
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    • pp.7-14
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    • 2017
  • Purpose - The purpose of the paper is to examine development strategy that Shanghai port has practiced, and to take out some productive implications to be applied to other port. Research design, data and methodology - The research methods to be applied is first to look into some development progress in terms of trade volumes, and then to review development strategy that is classified with two different aspects, and finally to identify implications. Results - Following the change of economic environment that China has joined to WTO, the way of doing business in Chinese economy has transferred to market economy more closely. Trade volume is higher than before and it attracts to build national infrastructure including port. Development strategy has to be needed to take care of newly faced economic situations, within two aspects, hardware and software approach. Both construction and management are answer to competitive port of Shanghai. Conclusions - From the development strategy of Shanghai port, hardware and software aspects should be emphasized, and it is evident that both trade volume of shipping market and the willingness of port authority have to be getting along with each other in development strategy.

SOME CHARACTERISTICS OF THE CERAMIC SUPERCONDUCTORS PHYSICS PROERTIES AND CHEMICAL ASPECTS

  • Escudero, Roberto
    • 한국재료학회:학술대회논문집
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    • 한국재료학회 1992년도 추계학술발표강연 및 논문개요집
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    • pp.17-17
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    • 1992
  • The ceramic high transition temperature superconducting materials present many interesting characteristics that will be analysed from two points of view: physical behavior, and chemical aspects. From the first point of view, these materials display an enormous variety of different physical properties. At low doping levels the normal state shows antiferromagnetism and insulating behavior. At intermediate doping levels, an anomalous metallic state appears and, the optimum Tc in the superconducting state is generated. With increasing doping a normal metallic state develops and superconductivity starts to disappear. Many of the physical phenomena that describe the overall behavior when doping levels are changed will be discussed. From the poing of view of the chemical aspects. we well discuss some of the problems involved in the methods of preparation with particular emphasis on defects, crystal structures, critical currrents, and applications in technology.

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