• International Journal of Fuzzy Logic and Intelligent Systems
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• 제2권1호
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• pp.43-48
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• 2002

This paper discusses the application of fuzzy-ARTMAP neural network to compensate the nonlinearity of satellite communication channel. The fuzzy-ARTMAP is the class of ART(adaptive resonance theory) architectures designed fur supervised loaming. It has capabilities not fecund in other neural network approaches, that includes a small number of parameters, no requirements fur the choice of initial weights, automatic increase of hidden units, and capability of adding new data without retraining previously trained data. By a match tracking process with vigilance parameter, fuzzy-ARTMAP neural network achieves a minimax teaming rule that minimizes predictive error and maximizes generalization. Thus, the system automatically leans a minimal number of recognition categories, or hidden units, to meet accuracy criteria. As a input-converting process for implementing fuzzy-ARTMAP equalizer, the sigmoid function is chosen to convert actual channel output to the proper input values of fuzzy-ARTMAP. Simulation studies are performed over satellite nonlinear channels. QPSK signals with Gaussian noise are generated at random from Volterra model. The performance of proposed fuzzy-ARTMAP equalizer is compared with MLP equalizer.

• 대한예방한의학회지
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• 제15권2호
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• pp.39-49
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• 2011

Objectives : This study is to explain the effects of Yoga therapy for relieving dysmenorrhea on the aspect of Oriental Medicine and to identify the therapeutic Yoga asanas applicable to clinic medicine. Methods : We searched papers using Pubmed, CNKI and 7 Korean medical databases. We used "Yoga" and "Dysmenorrhea" as keyword. Limitations were as follows ; the last 20 years of publications and search range only including RCTs. Papers without inclusion criteria were excluded. We classified all the searched RCTs studies into Yoga exercise prescriptions. Results : A total of 47 studies were found. And 38 were excluded during extract screening. Finally 3 RCTs were selected and analyzed out of 9 papers. Blood sampling and survey questionnaires were used in the outcome measure. They reported that Yoga exercise could be used for dysmenorrhea patients, which has a curative effect. Conclusions : Yoga therapy can be explained as Meridian muscle theory in the concept of Oriental Medicine. Also, it may be a favorable choice for dysmenorrhea patients. Further studies to describe the effects of Yoga therapy will be needed more.

• Nuclear Medicine and Molecular Imaging
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• 제42권sup1호
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• pp.46-51
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• 2008

Gastrointestinal stromal tumors (GIST) are the most common mesenchymal neoplasm of the gastrointestinal tract, and can be distinguished from the smooth muscle or neural tumors in approximately 95% of patients by expression of the KIT receptor tyrosine kinase (CD117). GISTs are known to have high malignant potential and none can be labeled definitely as benign. However, GISTs are unresponsive to standard sarcoma chemotherapy, and only complete surgical resection provides chance for cure. Although the imaging modality of choice is enhanced CT scan in patients with GIST, FDG PET can reflect the malignant potential of GIST. Clinical management of patients with GISTs has dramatically changed with the introduction of novel therapeutics, such as imatinib mesylate (Glivec). This has created a need to re-evaluate the existing criteria used to assess treatment response. FDG PET as functional imaging modality proved to be significantly more accurate than CT alone when assessing GIST response to imatinib. And, FDG PET and PET ICT have been found to be highly sensitive in detecting early response, and to be useful in predicting long-term response to imatinib in patients with recurrent or metastatic GISTs.

• 한국문헌정보학회지
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• 제36권2호
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• pp.119-138
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• 2002

본 연구는 웹 환경에서 이용자들의 정보의 질과 권위에 대한 판단이 웹 탐색과정에서 정보의 선택과 이용에 어떻게 영향을 미치는가를 다루고 있다. 실험실환경에서 교수와 박사과정학생 총 16명을 대상으로 탐색실험을 실시하여, 로그 데이터, 생각 소리내어 말하기 (think-aloud), 인터뷰를 통하여 데이터를 수집하였다. 연구결과, 본 연구의 대상자들은 정보에 대한 판단을 탐색과정의 두 가지 단계에서 내리고 있음이 밝혀졌으며, 이는 예측적 판단과 평가적 판단으로 각각 분석되었다. 웹 정보의 질과 권위에 대한 판단성향과 판단에 영향을 미친 요소를 탐색과제의 유형, 이용자의 신분, 학문영역에 따라 비교하였다.

• 한국의류학회지
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• 제25권1호
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• pp.37-49
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• 2001

The purpose of this research was to investigate the influential factors to wear or not to wear \"Hanbok\" in Korean society. Twenty six individuals who wear Hanbok relatively often, and twenty seven individuals who dont were purposively sampled and interviewed for the study by structured depth-interview method. A domain analysis, a method of qualitative study, was employed to find out the influential factors from the results of the depth-intervews. From the analysis, fifteen encouraging or discouraging factors to wear Hanbok emerged and were categorized into five domains, which included \"interpersonal relationship\", \"life-style\", \"image\", \"practicality\" and \"decorative function\". The personal involvement in traditional culture, tradition-oriented family background, good images related to Hanbok, and affordable life-style appeared to be encouraging factors to wear Hanbok. Meanwhile, social norm and role-expectation adjusted to westernized criteria, unaffordable life-style, ill practicality of Hanbok and negative cues associated with Hanbok were the factors influencing people to turn away from Hanbok. The study also revealed complex interactions between these factors explaining individuals choice of wearing or not wearing Hanbok in industrialized modern society of Korea. Some suggestions to promote wearing Hanbok were made based oh the results of this study.wearing Hanbok were made based oh the results of this study.

• 한국중재학회지:중재연구
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• 제25권3호
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• pp.155-184
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• 2015

This paper addresses the question of what kinds of dispute resolution choices can effectively handle complex intellectual property disputes, given the rising importance of IP, the increasing frequency and complexity of IP disputes, and the lack of research on dispute resolution strategies. For this analysis, the study adopted the analytic hierarchy process approach, which covers complex, multi-criteria decision problems, to quantify the expert's judgments on IP dispute resolution choice. Its results show that the effectiveness of resolution methods differs, depending on the type of IP dispute classified into seven issues, which are (i) requirement for validity of IP right, (ii) range and duration of IP right, (iii) transfer of IP right, (iv) licensing, (v) use of IP right, (vi) declaration of IP infringement, and (vii) estimation of damage. The disputes over IPR ownership and IP infringement remain challenging issues in due to strong requirement of the cross-border enforcement. Alternative dispute resolution (ADR), especially arbitration, is determined to be a more effective method to deal with international IP disputes, but various advanced types of ADR techniques should be further developed to deal with the increasing complexity of IP disputes.

• 한국병원경영학회지
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• 제12권4호
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• pp.1-21
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• 2007

The relaxation of the regulation in selection of medical institution allows patients to use their own judgement in choosing proper institution for their diseases. Since the change of the regulation, there should have been many changes in medical institution selection behavior. The analysis of the change in disease specific selection pattern is critical because there be an optimal selection criteria that ensure the efficient and effective utilization of medical resources. This study analysis the institution selection factors by comparing the choice among the cases of acute diseases, the cases of chronic diseases, inpatient services, outpatient services, and emergency medical service. The comparisons performed in terms of size, class and other characteristics of medical institutions. For the study the nationally surveyed database was used and the data were analyzed using logistic regression procedure. The results indicates that the primary care facilities were not properly utilized. This study speculates that the reason for the undesirable pattern of utilization is that the roles of primary care facilities in the healthcare delivery system was not clearly defined. Based on the results, the medical policy implications are discussed.

• Industrial Engineering and Management Systems
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• 제12권3호
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• pp.254-263
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• 2013

Disassembly of discarded products takes place in the process of remanufacturing, recycling, and disposal. The disassembly lines have been taken as available choice for automated disassembly; therefore, it has become essential that it be designed and balanced to work efficiently. The multi-objective disassembly line balancing problem seeks to find a disassembly sequence which provides a feasible disassembly sequence, minimizes the number of workstations and idle time, and balances the line for the disassembly of post consumed product by considering the environment effects. This paper proposes a multi-criteria decision making technique based heuristic for assigning the disassembly tasks to the workstations. In the proposed heuristic, the PROMETHEE method is used for prioritizing the tasks to be assigned. The tasks are assigned to the disassembly workstations according to their priority rank and precedence relations. The proposed heuristic is illustrated with an example, and the results show that substantial improvement in the performance is achieved compared with other heuristics.

• 한국정보시스템학회지:정보시스템연구
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• 제14권1호
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• pp.19-40
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• 2005

The history of computer virus comes along with that of computer. Computer virus han surfaced as a serious problem in information age. The advent of open network and widespread use of Internet made the problem even more urgent. As a method of defense for computer virus most companies use anti-virus software. Selecting appropriate anti-virus software involves various criteria and thus it is a multiple-attribute decision making problem. The purpose of this study is to prioritize anti-virus software evaluation factors. To do that, first of all, important evaluation factors are selected based on previous research on anti-virus software as well as general software evaluation models. Then, a questionnaire survey was conducted on end-users, system administrators and anti-virus software developers. The survey result was analyzed with ExpertChoice 2000 which is based on Analytic hierarchy Process technique. This study found that there are clear differences among three survey groups regarding the relative importance of overall evaluation factors. End-user group ranked "cost" first, but it was the least important factor to developer group. Developers pointed out "operational support" ad the most important factor. There were also obvious differences in the relative importance of detail evaluation items. Both end-users and system administrators shared 7 common items among top 10 most important items. Moreover, neither of the two groups ranked any of the items in the "operational support" factor in top 10, whereas all 4 items in the factor were included in top 10 by developer group.

• 대한정형도수물리치료학회지
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• 제18권2호
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• pp.87-93
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• 2012

Background: Headaches arising from cervical musculoskeletal disorders are common. Conservative therapies are recommended as the choice of first treatment. Evidence to the effects of manual therapy is inconclusive and available only during the short term. There is no evidence to exercise, and no study has investigated the effect of combined therapies for cervicogenic headache. Methods: In this study, 30 participants who met the diagnostic criteria for cervicogenic headache were randomized into two groups: experimental group and control group. The experimental group was performed myofascial release (MFR), Mulligan technique and self stretching exercises. The control group was performed electrical therapy and self stretching exercises. Assessments were performed to 30 participants before and after 4 weeks therapy. The components of assessments were headache intensity(HI), headcahe duration (HD), neck pain (NP) and neck disability index (NDI). Results: After 4 weeks therapy, HI, HD, neck pain and NDI were significantly reduced in both groups (p<.01). The HI, HD, neck pain and NDI were significantly reduced in experimental group more than in the control group (p<.01). Conclusions: Manual therapy could reduce the symptoms of cervicogenic headache.