• Title/Summary/Keyword: small areas

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A study of the information technology satisfaction in a small business. (소기업에서 IT 사용 만족도에 대한 연구)

  • 안중호;양지윤
    • The Journal of Society for e-Business Studies
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    • v.6 no.3
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    • pp.17-40
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    • 2001
  • In this study we tried to measure the user satisfaction with IT in small firms. Though the number of small firms is not negligible, most studies on the IT satisfaction focused on medium and large-sized firms. Using Palvia's model in 1999 we measured If satisfaction of the employee in small firms in the manufacturing and telecommunication industry. We included seven constructs such as S/W pertinence, information content and accuracy, information format, system usefulness, system continuance, and system support to measure IT satisfaction. The result suggests that the If users in small firms are generally dissatisfied with the information technology and the areas of deep dissatisfaction are system usefulness and system support. Type of business, the gender and education of the users are found to affect the level of satisfaction.

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Small Area Variation in Rates of Common Surgery in General Surgery Department (일반외과 영역 다빈도 수술률의 소규모 지역간 변이)

  • 김윤미;양봉민
    • Health Policy and Management
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    • v.14 no.2
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    • pp.138-162
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    • 2004
  • This study was performed to investigate small area variation in rates of three common surgeries in general surgery department across 156 small areas. Three surgery rates were analyzed; Anal and/or stomal procedures, inguinal and/or femoral hernia procedures, appendectomy. Methods: We used health insurance claims data and the number of patients were 13,845, 2,154 and 7,151 persons respectively. Surgery rates were directly standardized with age and sex and logistic regression was used to analyze surgery rates. Results: Mapping of the surgery rates, there was small area variation in anal and/or stomal procedures. The clinic which was located in more competitive market and chose DRG payment system tends to do more anal and/or stomal procedures. There was no factor except DRG bed rates had effect on rate of inguinal and/or femoral hernia procedures. Conclusions: Findings of this study will contribute to developing investigation method on small area variation and policy to reduce the variation such as developing evidence based medical practice guideline.

Geographically weighted kernel logistic regression for small area proportion estimation

  • Shim, Jooyong;Hwang, Changha
    • Journal of the Korean Data and Information Science Society
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    • v.27 no.2
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    • pp.531-538
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    • 2016
  • In this paper we deal with the small area estimation for the case that the response variables take binary values. The mixed effects models have been extensively studied for the small area estimation, which treats the spatial effects as random effects. However, when the spatial information of each area is given specifically as coordinates it is popular to use the geographically weighted logistic regression to incorporate the spatial information by assuming that the regression parameters vary spatially across areas. In this paper, relaxing the linearity assumption and propose a geographically weighted kernel logistic regression for estimating small area proportions by using basic principle of kernel machine. Numerical studies have been carried out to compare the performance of proposed method with other methods in estimating small area proportion.

The evaluation of [F-18]FDG small animal PET as a functional neuroimaging technique with fear response experiment (공포반응실험을 통한 [F-18]FDG 소동물 양전자단층촬영 기능뇌영상 평가)

  • Jang, Dong-Pyo
    • Journal of Biomedical Engineering Research
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    • v.32 no.1
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    • pp.74-78
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    • 2011
  • Although recent studies have shown the usibility of [F-18]FDG small animal Positron Emission Tommography (PET) as a functional neuroimaging technique in behavioural small animal study, researches showing the detection power of functional changes in the brain are still limited. Thus, in the study, we performed [F-18]FDG small animal PET neuroimaging in the well-established fear behavioural experiment. Twelve rats were exposed on cat for 30 minutes after the [F-18]FDG injection. As a result, the brain activity in bilateral amygdala areas significantly increased in the fear condition. In addition, the fear condition evoked the functional activities of hypothalamus, which seemed to be related to the response to stress. These clear localization of fear related brain regions may reflect that a functional neuroimaging technique using [F-18]FDG small animal PET has functional detectibility enough to be applied in small animal behavioral research.

A Basic Study on the Directions for Reorganization of Small Elementary School in Kumi and Uiseong (구미시와 의성군 소규모초등학교의 재편성 방향에 관한 기초적 연구)

  • Yang, Kum-Suek
    • Journal of the Korean Institute of Rural Architecture
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    • v.14 no.3
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    • pp.33-40
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    • 2012
  • This study is to clarify the actual conditions of small elementary school facilities in depopulation areas. The aim of this thesis is to present the directions for Reorganization of small school facilities. Research area was kumi and uiseong, the number of students decreased rapidly. And small elementary school facilities were surveyed. The results are as the follows; 1)After consider living zone, commuting distance, opinions of residents, it is advisable that the small size school(the number of students under 60) will be combined stronghold school. 2)In the case of relocation, first of all, should consider the characteristic of living zone, exchanging training programs between elementary schools. 3)The closed school facilities will be used consistently as public facilities with priority consideration of environmental characteristic and users' demand.

Development of ASP Service Model for Small Retailers According to Their Characteristics (소규모 소매유통업체를 위한 ASP(Application Service Provider) 서비스 모델 개발에 관한 연구)

  • Kim, Gyeung-Min;Lee, Sook-Kyung
    • Journal of Information Technology Applications and Management
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    • v.15 no.1
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    • pp.21-41
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    • 2008
  • The development of POS (Point of Sales) systems for small retailers according to their needs is considered to be important to improve their competitive advantages. However, their financial statuses hinder the adoption of the tailored POS systems. Viewing ASP as a viable solution to provide tailored POS systems for the small retailers, this study develops ASP POS service models for the small retailers. First, this study elicits ASP POS requirements of the small retailers in the following areas: merchandising, pricing, store design and display, customer service, advertising and promotion and personal selling. Then, the requirements are clustered and the clusters are analyzed based on the characteristics of the retailers. Then, ASP service models are proposed according to the needs and profiles of the retailers.

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The Prediction of the location and electric Power for Small Wind Powers in the H University Campus (대학교 캠퍼스 소형풍력발전기 설치 및 발전량 예측에 관한 연구)

  • Cho, Kwan Haeng;Yoon, JaeOck
    • KIEAE Journal
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    • v.12 no.1
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    • pp.127-132
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    • 2012
  • The energy consumption in the world is growing rapidly. And the environmental issues of climate become a important task. The interest in renewable energy like wind and solar is increasing now. Especially, by reducing power transmission loss, a small wind power is getting attention at the residential areas and campus of university. In this study, we attempted to estimate and compare the wind energy density using wind data of AWS (Automatic Weather Station) of H University. In this case of a campus, the weibull distribution parameter C is 2.27, and K is 0.88. According to the data, the energy density of the small wind power is 12.7 W/m2. We did CFD(Computational Fluid Dynamics) simulations at H University campus by 7 wind directions(ENE, ESE, SE, NW, WNW, W, WSW). In the results, we suggest 4 small wind powers. The small wind power generating system can produce 4,514kWh annually.

A Study on the Collaboration Development between the SSM and Traditional Markets in Korean Government Policies

  • Suh, Geun-Ha;Park, Seung-Je;Suh, Chang-Soo
    • Journal of Distribution Science
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    • v.10 no.11
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    • pp.55-60
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    • 2012
  • Purpose - This study aims to suggest policy directions for small retail markets in Korea by statistical analysis, which would help small retailers who are facing various difficulties. Research design, data, methodology - This study diagnoses the problems faced by small retail industries in Korea based on government statistics. In addition, this study identifies three areas for successful collaboration between the SSMs and traditional markets-information distribution, products, and fair trade. Results - This study makes three recommendations-information distribution, products, and fair trade. This includes activation of the existing mutual collaboration efforts, channels, CSR report writing and publicity, ethical management cooperation seminars, contract systems of no return, establishment of staff outsourcing standards, and support for suppliers' organizations. Conclusions - Our suggestions for a collaborative system (based on the three suggestions) show that collaboration rather than confrontation between large and small markets can lead to a sales increase of 2,258.2 billion Won, which is equivalent to the sales loss in 11 traditional markets in one year in Busan.

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A Study on the Interaction between Distributed Cracks (분포 크랙들 사이에서의 상호 간섭에 관한 연구)

  • Han, Moon-Sik;Cho, Ja-Eung
    • Transactions of the Korean Society of Automotive Engineers
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    • v.13 no.6
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    • pp.63-69
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    • 2005
  • For the case that center crack is surrounded by four small cracks which are symmetrically distributed around center crack, the same values of normalized stress intensity factor of center crack according to the position of the tip of small cracks are located on the smooth curve. And the stress intensity factor according to any position of small cracks can be sufficiently obtained from this curve. The plastic zones between distributed cracks are also investigated by changing the positions of nearly small cracks. The occurrence of plastic zone due to the interaction between center crack and small cracks are analyzed by finite element method. The mechanical behavior at the vicinity of crack tips is investigated by plastic areas. The changes of plastic zones according to positions of distributed cracks are drawn schematically. The safety of materials is also analyzed.

Comparative study on the Shape between a Customized Finger Made by 3D Printing Technology, Real Small Finger, a plaster Small Finger, Based on CT Data (CT data 기반 3D 프린팅으로 제작된 Small Finger, 실제 Small Finger 그리고 석고 Small Finger 형상 비교 연구)

  • Choi, Hyeun-Woo;An, Do-Hyun;Rhee, Do-byung;Lee, Jong-Min;Seo, Anna
    • Journal of the Korean Society of Radiology
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    • v.13 no.2
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    • pp.153-158
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    • 2019
  • The purpose of this study is to compare and analyse the differences between a customized small finger made by 3D printing technology, a real small finger, and the other made from plaster of an orthotic company. The areas and the volumes of each cross-section were measured by Computer tomography(CT) and a 3D scanner and analysis of variance was performed to find out the differences of each shape. The areas of the point of 15.69mm, Distal Interphalangel Joints, were measured 30 times respectively using the caliper toll function of Picture Archiving Communication System(PASC) program. The volumes were measured by Configure Units of Meshmixer Program. There was no significant difference in the areas between three of them and there was 0.2 mm gap in the volume, which was more than the significance probability. Therefore, the result of this study shows the availability of finger orthoses made by 3D printing technology in the medical field.