• Title/Summary/Keyword: Alternative methods

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Some Problems in the Evaluation of the Transportation Plan (교통계획평가에서의 제문제)

  • 최창의
    • Journal of Korean Society of Transportation
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    • v.5 no.2
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    • pp.37-54
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    • 1987
  • The methods of the transportation plan evaluation have appearently been improved. Yet we are frequently confronted with many problems when we are trying to apply those various methods in practice. This paper aims at reviewing the major problems in the transportation plan evaluation and considering the way to resolve such kinds of problem. The selection of the evaluation criteria and the weighting systems between such criteria are the moat important things in the multi-criteria approaches. In this respect, this paper suggests some alternative evaluation criteria in consideration of the levels and the purpose of the plan. Also the increased capacities and new demands of generated trip are the main effects of the transportation investment. Nevertheless such significant effects have been neglected in the calculation of benefits due to the transportation investment in the past. Therefore this paper suggests that the surplus capacities and new demands of generated trip according to the alternative investment plans should be included in the calculation of benefits for the plan evaluation.

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A Study on the Examination of Feminist Social Work Practice (여성주의 사회복지실천의 정립을 위한 고찰)

  • Kim, In-Sook
    • Korean Journal of Social Welfare
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    • v.41
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    • pp.93-118
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    • 2000
  • The purpose of this study was to introduce major contents and examine the feminist social work practice. Feminist social work practice has never been introduced and applied to social work fields in Korea. By contrast, it has been developed and expanded in advanced Western countries. Feminist social work was emerged under the influence of worldwide Women's Movement on the end of 1960's. After the time, there were critics of existing social work practice by feminist, increase in interest of women's issues, development of principles and methods in feminist social work practice. Feminist social work practice brought, transformative change, application of gender perspectives to social work practice. Also, it offered the visions for 'integrative practice', accepted the alternative principles and methods, and enriched 'theory-practice'. As the result, feminist social work practice contributed to solving or alleviating the problems of many clients, especially women clients. These evidences suggest that feminist social work practice has the possibility of holding an position as a new alternative social work practice.

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Evaluation Technology for the Flaw Sizing of Generator Rotor by Using Phased Array Ultrasonic Technique (위상배열 초음파기법을 이용한 발전기 로터 결점크기 평가)

  • Kim, Jin-Hoi;Park, Cher-Young;Lee, Sang-Hoon
    • Transactions of the Korean Society of Pressure Vessels and Piping
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    • v.5 no.1
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    • pp.14-19
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    • 2009
  • NDE(Nondestructive examination) detects a flaw or discontinuity in materials. Flaws detected by the examination shall be evaluated for the decision basis of the integrity. The internal flaws of forging products can be detected by UT. However, UT has detection limits because of its reflected signal weakness. Normally, a 1mm or less flaw is known as the limit. If a flaw was detected, the size of flaw would be evaluated by AVG(or DGS) technique. To verify the evaluation data, alternative examination methods are needed. But there is no alternative examination methods until now. In this study, Phased array ultrasonic technique can be used to size the flaws in the generator rotor with focused beam of ultrasonic wave as a supplement method of AVG. Also, the phased array ultrasonic technique described enables the shape of flaw to be depicted exactly.

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Impostor Detection in Speaker Recognition Using Confusion-Based Confidence Measures

  • Kim, Kyu-Hong;Kim, Hoi-Rin;Hahn, Min-Soo
    • ETRI Journal
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    • v.28 no.6
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    • pp.811-814
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    • 2006
  • In this letter, we introduce confusion-based confidence measures for detecting an impostor in speaker recognition, which does not require an alternative hypothesis. Most traditional speaker verification methods are based on a hypothesis test, and their performance depends on the robustness of an alternative hypothesis. Compared with the conventional Gaussian mixture model-universal background model (GMM-UBM) scheme, our confusion-based measures show better performance in noise-corrupted speech. The additional computational requirements for our methods are negligible when used to detect or reject impostors.

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Review on the Treatment Methods of Korean Medicine for Menopausal Women's Depression in Foreign Clinical Research (갱년기 및 폐경 후 여성의 우울증에 대한 한방의 국외 임상연구동향 고찰)

  • Kim, Deok-Ho;Kim, Dong-Il
    • The Journal of Korean Obstetrics and Gynecology
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    • v.28 no.2
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    • pp.76-90
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    • 2015
  • Objectives : This study were invesitigated papers published in international journals to assess the effect of Korean Medicine treatments for menopausal depression. Through this review, we aimed to research more effective ways of menopausal depression treatment. Methods : The database of this review was created through searching PubMed from Jan, 2005 to Feb, 2015 : using terms of ‘menopausal depression’ and ‘post menopausal depression’ with ‘acupuncture’, ‘alternative medicine’, ‘CAM’ and ‘herbal medicine’. Results : 119 studies were analyzed but some of them were excluded due to lack of relevance or noncomformity of subjects. Finally, 16 studies were included in this review. Conclusions : In 16 studies, the acupuncture and herb decoction had significant interventions to improve menopausal depression. Therefore Acupuncture and herbal medicine may be effective treatment method of menopausal depression.

Study for Level of Evidence and Recommendation of Anticancer Effect for the Materials of Green Vegetable Juice by Using Natural Standard Methodology (Natural Standard Methodology를 이용한 녹즙재료의 항암효과에 대한 근거 및 권고수준에 대한 연구)

  • Yoo, Hwa-Seung
    • Journal of Haehwa Medicine
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    • v.17 no.1
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    • pp.11-19
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    • 2008
  • Objective : We designed this study to analyse the anti-cancer effects of materials of green vegetable juice by using the natural standard methodology and apply the results to new studying and evaluating methods. Methods : We investigated the main stream of complementary and alternative medicine (CAM), the methodology of natural standard, guideline in CAM, and concrete 15 green vegetable juice in cancer therapy. Results : There are 15 graded materials of green vegetable juice that associated with cancer in natural standard contents. Most of them get grade C, unclear or conflicting scientific evidence. Conclusion : Natural Standard aims to provide high-quality, reliable information about CAM therapies to clinicians, patients, and healthcare institutions. We have to acquire more reliable evidence in future.

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Development of the Causally Related Weighting Method (새로운 가중값 결정방법의 개발)

  • Park, Chang-Kyu
    • IE interfaces
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    • v.12 no.1
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    • pp.43-48
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    • 1999
  • This paper indicates deficiencies of existing weighting methods for decision problems that require trading off a selection of one alternative against others. Deficiencies originate from the definition of weight, $W_i$, satisfying that $W_i{\geq}0$ for all i and sums up to one and an assumption of independence between attributes. Thus, existing weighting methods can not handle a situation where all attributes are interrelated, resulting in that attributes can give either positive, or negative, contributions to the value of an alternative. In order to cope with deficiencies, this paper redefines weight and proposes a new causally related weighting method. The proposed method was applied in the study of developing a comprehensive organizational performance measurement system and showed a good performance.

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An Alternative Way of Constructing Ancestral Graphs Using Marker Allele Ages from Population Linkage Disequilibrium Information

  • Park, Lee-Young
    • Genomics & Informatics
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    • v.7 no.1
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    • pp.1-12
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    • 2009
  • An alternative way of constructing ancestral graphs, which is different from the coalescent-based approach, is proposed using population linkage disequilibrium (LD) data. The main difference from the existing method is the construction of the ancestral graphs based on variants instead of individual sequences. Therefore, the key of the proposed method is to use the order of allele ages in the graphs. Distinct from the previous age-estimation methods, allele ages are estimated from full haplotype information by examining the number of generations from the initial complete LD to the current decayed state for each two variants depending on the direction of LD decay between variants. Using a simple algorithmic procedure, an ancestral graph can be derived from the expected allele ages and current LD decay status. This method is different in many ways from previous methods, and, with further improvement, it might be a good replacement for the current approaches.

A Study on the Level of Correctness of Decision Making using two Alternative Information Presenting Methods (회계정보의 표현양식이 의사결정자의 예측정확성에 미치는 영향에 관한 연구)

  • Park Jae-Yong;Park Seong-Kyu
    • Management & Information Systems Review
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    • v.4
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    • pp.573-593
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    • 2000
  • The purpose of this study is to investigate the level of correctness accounting information with the two alternative forms of presenting information outputs. Specifically two different methods of presenting accounting information, the table form and the graphical form were employed to test the level of correctness of the accounting information user's decision making. Using college students as a surrogate decision maker, this research have found that there is no statistically significant difference in the correctness of decision making between the two groups, one group using the table form of accounting information and another group using the graphical form of accounting information.

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Additive Materials to Reduce the Amount of Loess Being Applied for Red Tide Removal on Coastal Water (적조방제용 황토살포의 양을 줄일 수 있는 첨가제에 대한 연구)

  • Park, Chi-Hyun;Lee, Byoung-Ho
    • Journal of Environmental Science International
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    • v.16 no.6
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    • pp.745-750
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    • 2007
  • Large scale of loess has been applied on the south - sea shore of the Korean peninsula to treat red tides, due to many fishery's devastation by red tides every year. However, coastal ecosystem is ruined by the huge amount of loess applied every year. Almost all creatures, living under water such as sea weeds, clams, and fishes, where loess was applied, are disappearing. In this paper, alternative methods of the loess application are investigated. The amount of loess could be reduced by the alternative methods, Especially, loess mixed with calcium oxide has excellent effects to reduce Cochlodinium polykrikoides numbers. It was found that when loess is used with calcium oxide(CaO), removal efficiency of red tides is highly increased. Moreover, the amount of loess could be reduced dramatically.