• Title/Summary/Keyword: interrelation model

Search Result 82, Processing Time 0.025 seconds

A Study on the Improvement of the Accuracy of Photovoltaic Facility Location Using the Geostatistical Analysis (공간통계기법을 이용한 태양광발전시설 입지 정확성 향상 방안)

  • Kim, Ho-Yong
    • Journal of the Korean Association of Geographic Information Studies
    • /
    • v.13 no.2
    • /
    • pp.146-156
    • /
    • 2010
  • The objective of this study was to improve the accuracy of calculation and estimation of solar radiation and duration of sunshine, which are the most important variables of photovoltaic power generation in deciding the location of photovoltaic facilities efficiently. With increasing interest in new and renewable energies, research on solar energy is also being conducted actively, but there have not been many studies on the location of photovoltaic facilities. Thus, this study calculated solar duration and solar radiation based on geographical factors, which have the most significant effect on solar energy in GIS environment, and corrected the results of analysis using diffuse radiation. Moreover, we performed ordinary kriging, a spatial statistical analysis method, for estimating values for parts deviating from the spatial resolution of input data, and used variogram, which can determine the spatial interrelation and continuity of data, in order to estimate accurate values. In the course, we compared the values of variogram factors and estimates from applicable variogram models, and selected the model with the lowest error rate. This method is considered helpful to accurate decision making on the location of photovoltaic facilities.

A study on the International I/O Table Analysis among Korea, Japan, and China Logistics Industries (우리나라와 중국, 일본 물류산업의 상호 파급효과 비교분석)

  • Ban, Yeong-Gil;Sin, Seung-Sik
    • Journal of Korea Port Economic Association
    • /
    • v.24 no.4
    • /
    • pp.173-197
    • /
    • 2008
  • The purpose of this study is to analyse the spill-out effects of logistics industries among Korea, Japan and China. For this purpose, we used an International I/O table made by Asian Economic Institute of Japan, which is made up for 11 countries. At first, we transformed the I/O table for 11 countries into that for 3 countries, and then we applied the Inter-Regional Input Ouput model to find out the spill-out effects of one country's logistics investment to another country's logistics or other industries. The contribution of this study is that this paper has suggested a method how to evaluate a logistics interrelation among 3 countries by way of I/O analysis for the first time.

  • PDF

Can Ambient Temperature Change Affect the Efficacy of Acupuncture on the Postmenopausal Hot Flash? (기온 변화는 폐경후 안면홍조의 침 치료 효과에 영향을 미치는가?)

  • Roh, Jin-Ju;Ahn, Hong-Yup;Kim, Dong-Il
    • The Journal of Korean Obstetrics and Gynecology
    • /
    • v.20 no.4
    • /
    • pp.123-131
    • /
    • 2007
  • Purpose: To find the correlation between ambient temperature change and the efficacy of acupuncture on the postmenopausal hot flash. Methods: 52 patients entered a randomized clinical trial which was to verify the efficacy of acupuncture on postmenopausal hot flash. Participants were treated with optimal/minimal acupuncture in the course of 13 weeks. 34 of 52 visited for the temperature-rising period(Group 1), while 18 of 52 for the temperature-falling period(Group 2), 100mm hot flash VAS and average temperature were taken 18 times from each person. Linear mixed effects model was used to find the correlation between temperature and hot flash VAS score(p-value<0.05). Group1/2, optimal/minimal acupuncture, age, age of menarche, height, weight, percent body fat, BMI, waist-hip ratio, past history of hysterectomy and HRT were also examined. Results: Period of treatment had influence on the hot flash VAS. As time went by, hot flash decreased(p<.0000). Participants who underwent minimal acupuncture showed higher hot flash VAS(p=0.0479) and as waist-hip ratio rose, hot flash increased(p<.0000). As the temperature rose, hot flash VAS score became lower(p=0.0143) and it was because 34 of 52 participants were treated for the temperature-rising period. Group 1/2 had no interrelation with hot flash(p=0.5741). Conclusion: Hot flash diminished as participants were treated with acupuncture, independently of whether the ambient temperature rises or falls.

  • PDF

Study on Common Conceptual Terms as a Premise for Korean Classification of Disease in Oriental Medicine in Connection with ICD-10 (ICD 연계 한의질병분류를 위한 전제로서의 공통개념어 연구)

  • Chi, Gyoo-Yong
    • Journal of Physiology & Pathology in Korean Medicine
    • /
    • v.22 no.4
    • /
    • pp.718-724
    • /
    • 2008
  • In order to classify diseases of oriental medicine in liaison with International Classification of Diseases, there should be intermediation and sharing concepts between the two in addition to proper classification. Classification units were settled for differentiation of diseases or syndromes first. And second, the standard forms of disease classification system were proposed. Third, this classification system was made of serial groupings of syndrome under the traditional disease name. Fourth, the location of disease and the interrelation between different syndromes were depicted with diagram in order to define more clearly. As the results and conclusion, The classification units were composed of 2 categories; topology, organ, meridian, somatic structure, body fluid units for description and various regulatory unit terms of western and traditional medicine for explanation. The mixed classification model of western diseases and traditional syndromes(證) was adopted as a fundamental classification system containing disease by exterior pathogen, systemic internal diseases, psychoneuronal diseases, metabolic diseases, diseases of sense organs, supportive structure diseases, obstetric-gynecology diseases, child diseases, 4-type constitutional diseases. And those were differentiated with generalized, localized, functional, oncogenic, environmental features in detail. The cause, site, condition, dispositions must be expressed in each disease name too. The types of diagnosis using classification system are principal and final diagnosis, principal procedure, main conditions, and these are applied to this Korean classification system equally. For more clarification of differentiation, a plane topological map and three dimensional coordinates were proposed to manifest the location, features and relation of disease itself or each other.

A Study on the User Satisfaction for Park Facilities in Bukhansan National Park through the Analysis of Expectancy-Result Disconfirmation (기대-성과 불일치 분석을 통한 북한산 국립공원 탐방객의 시설물 이용 만족도 연구)

  • Song Byeong-Hwa;Yang Byoung-E;Lee Gwan-Gyu
    • Journal of the Korean Institute of Landscape Architecture
    • /
    • v.34 no.2 s.115
    • /
    • pp.44-56
    • /
    • 2006
  • The purpose of this study was to analyze user satisfaction for park facilities in Bukhansan National Park and to introduce a new framework of standards for facilities improvement. An initial theoretical model considered possible variables through a case study of user satisfaction for park facilities and eventually 19 variables were chosen. An analysis was conducted of the user's satisfaction based on their expectations before use and the results after use. This expectancy-result disconfirmation was measured for the 19 variables. Statistical methods were applied to determine the reliability of the analysis, the t-test was used to measure disconfirmation between expectations and results, and relationships between the variables were analyzed. The results of the reliability analysis (Cronbach's alpha) were higher than 0.8. Therefore, almost all variables were appropriate for analysis. Statistically significant differences were found between expectations and results for following variables: availability of information facilities and accessibility, convenience of facilities, number of information facilities, appropriateness of information facilities, information offered, safety and convenience. Based on the analysis of the interrelation between variables, it was found that the visitors were more satisfied after their visit than they expected to be. The results of the study suggest which variables make the greatest contributions to facilities maintenance or improvement and which can be adapted to maximize user satisfaction.

Design and Evaluation of Hybrid Tag Interface (하이브리드 태그 인터페이스 디자인 및 평가)

  • 윤형민;이창수;신현구;권오영;손영우;한탁돈
    • Journal of KIISE:Software and Applications
    • /
    • v.31 no.11
    • /
    • pp.1483-1495
    • /
    • 2004
  • Recently, new computing technologies are emerging from various life environments, as a result of the spread of network environments and the advent of new computing devices. This trend in computing technology is called "Ubiquitous computing" and is being developed to provide a convenient lifestyle through the dynamic integration of physical objects and digital information. The hybrid tag interface suggested in this paper is a usage model that integrates widely used image codes and recently applied RFIDs in various applications. On the basis of this concept, we eventually designed five different models such as Dual, Partial, Relative, Rebind and Discrete types according to their interrelation. In this paper, the characteristics of tag interfaces in the form of image codes and RFIDs are analyzed and the hybrid tag interface is proposed here for more efficient and convenient interface.

Analysis of Interrelation between Image and Text as Fusion Relationship -Through Advertising Production Class- (융합적 관계로서의 이미지와 텍스트의 상호관계성 분석 연구 -광고 제작 수업을 통하여-)

  • Seo, Hwa-Jung;Huh, Yoon Jung
    • Journal of the Korea Convergence Society
    • /
    • v.9 no.7
    • /
    • pp.155-162
    • /
    • 2018
  • This study explores the relationship between images and texts through advertising production using images and texts, and analyzes the student works with the semiotics of Roland Barth. Since Barth emphasized the interpreter's interpretation rather than the producer's intention in his work, he interpreted the work as a receiver. It was analyzed in terms of socio-cultural meaning of what students produced in the works. A total of 64 classes were held for the first two classes in D high school. The results of analyzing students' works after the advertisement production class are as follows. First, as a result of analyzing Barth 's myth structure model, advertisement image and text are symbols and have meaning. Second, advertising image and text complement each other and have the characteristic of interrelationship that constitutes meaning. Third, By attracting the socio-cultural implications inherent in the students' advertising, their values and interests could be discovered.

Numerical Study of Turbulent Flow and Combustion in a Micro Combustor with a Baffle Plate (배플이 부착된 마이크로 연소기의 난류유동 및 연소에 대한 수치해석 연구)

  • Kim, Won Hyun;Park, Tae Seon
    • Journal of the Korean Society of Propulsion Engineers
    • /
    • v.17 no.6
    • /
    • pp.20-29
    • /
    • 2013
  • Turbulent flow and combustion characteristics in a micro can combustor with a baffle plate are investigated by a Reynolds Stress Model. In order to examine the geometric effects on the turbulent combusting flow, several baffle configurations are selected. The interrelation between the flow structure and the thermal field are investigated by examing the variation of recirculation region, flame length and heat loss. For the flow mixing, the decreasing air hole is more efficient than the decrease of the fuel hole. As the fuel or air hole diameter decreases, combustion efficiency is enhanced and flame length is decreased. Additionally, as the diameter of air hole decreases, the heat loss and combustion temperature are increased, while they are reduced with decreasing the diameter of fuel hole.

A Study on the Influence of Factors of Corporate Culture for the Organizational Effectiveness in Merger Enterprise (합병기업의 기업문화 구성요소가 조직유효성에 미치는 영향)

  • Park, Kun-Suk;Kim, Jong-Lim;Nam, Ki-Eun
    • Land and Housing Review
    • /
    • v.1 no.1
    • /
    • pp.125-134
    • /
    • 2010
  • Integrating corporate culture in a merger enterprise is considered as one of the most important variables to decide M&A success. This study established a conceptional model according to the preceding study on integrating corporate culture and organizational effectiveness, and formulated a hypothesis on the interrelation between a seven factors of corporate culture proposed by Pascale & Athos and Peters & Waterman and organizational effectiveness. The result of applying multi-regression analysis to test the hypothesis is as follows; firstly, all of a merger enterprise's cultural factors have meaningful influence on job involvement among organizational effectiveness; secondly, all of them have sincere influence on job satisfaction among organizational effectiveness except shared value; and thirdly, all of them except skill have significant influence on organizational harmony among organizational effectiveness. This is a significant empirical and exploratory study to ascertain the variables of corporate culture factors, and to verify their effects on organizational effectiveness.

Definition of Architecture Patterns regarding Quality Attributes (품질속성을 고려한 소프트웨어 아키텍처 패턴의 정의)

  • Kung, Sang-Hwan
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.8 no.1
    • /
    • pp.82-95
    • /
    • 2007
  • The paper focuses on how to classify as well as to define the Architecture Patterns which are popularly used in the design of software architecture. In order to achieve this purpose, we propose not only the revised methodology for Pattern-Oriented Software Architecture Design, but also new method of classification and definition for the Architecture Patterns. Especially, because the patterns are so diverse depending on the level of abstraction and types of applications, it was considered to have some different views of classification of the patterns in order to support convenient access to classified and stored patterns. The abstraction of the pattern is another important result of the research, which is devised for concrete expression of the patterns and for presentation of the interrelation among group of the patterns. The research also includes the extension of the quality model popularly adopted in the software domain, which enables the description of the patterns with the well defined quality attributes in terms of software architecture's point of view.

  • PDF