• Title/Summary/Keyword: Literature search

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A Multi-Resource Leveling Algorithm for Project Networks

  • Lee, Chung-Ung
    • Journal of the military operations research society of Korea
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    • v.3 no.1
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    • pp.123-136
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    • 1977
  • This thesis presents a modification and extension to the Burgess and Killebrew heuristic resource leveling procedure for project networks. In contrast to previous algorithms appearing in the literature, the objective function of this algorithm. is the minimization of the sum of the squared errors in each time period (deviations around the mean usage) of all resources over the duration of the project. This objective function continues the search for an improved schedule beyond that of previous algorithms with their associated objective functions. One important feature is that the algorithm tends to reduce the number of periods that a resource is idle during its duration on the project.

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A Study on the Design of Optimal Ventilation Systems for Broiler Houses : A Review (육계 사육시설의 적정 환기 시스템 설계 연구 : 종설)

  • 장동일
    • Korean Journal of Poultry Science
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    • v.21 no.3
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    • pp.207-217
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    • 1994
  • This is to provide basic information and technical data, supported by literature search, for use in designing and /or evaluating ventilation systems for broiler shelters. At first, the general design information including weather data, building requirements, ventilation requirements, and supplemental heating and cooling, was presented. Then, environment requirements for broilers, which are for temperature, humidity, air movement, radiant heat, were described and the optimal ventilation systems for broiler were developed.

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Search for Naturally Occurring Hypolipidemic Principles (천연에 존재하는 고지질혈증 개선 활성성분의 탐색)

  • 최재수;양한석
    • Journal of Life Science
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    • v.3 no.2
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    • pp.79-90
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    • 1993
  • The present paper reviews the active natural principles and crude extracts of plants which have been experimentally studied for hyploipidemic activity in the last decades. Phytoconstituents with known structures have been classified in appropriate chemical groups The data are reported on their pharmacological activity, mechanism of action and other properties. This review also describes the inducing method of experimental hypolipidemic animals appeared in the literature.

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Learners' Sociolinguistic Behavior: In Search of Four Major Sources of Pragmatic Errors

  • Suh, Jae-Suk
    • English Language & Literature Teaching
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    • v.7 no.1
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    • pp.35-48
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    • 2001
  • One of the areas of second language acquisition that enjoyed popularity in recent years is interlanguage pragmatics. The main reason for this popularity lies in the critical role of pragmatic competence in appropriate use of a target language. The aim of this paper was to examine L2 learners' pragmatic behavior in their speech act performance and determine main sources causing pragmatic difficulty. Four major sources of pragmatic errors were identified: linguistic proficiency, L1 transfer, waffling and teaching activities. Each source was discussed with empirical evidence in some detail, and teaching suggestions were provided for developing learners' pragmatic competence in EFL classrooms.

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Flexibility : Definition and Classification in Manufacturing Systems (제조시스템의 유연성 정의 및 분류에 관한 연구)

  • 이창섭;하정진
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.14 no.24
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    • pp.155-161
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    • 1991
  • Flexibility has become a key objectives in the design of manufacturing systems and a critical measure of total manufacturing performance. The need for flexibility is increasing due to some environmental change such as changing technical characteristics of the products and the changing nature of market demands. Most importantly, flexibility embodies competitive value for a manufacturer. Although the importance of flexibility has stressed in the various research, very few attempts have been made to synthesize the literature dealing with definitions and measure of flexibility. It is this issue that have motivated us to search for the definition and classification of flexibility.

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A new synthesis route to nucleoside: Two-directional synthesis of carbocyclic nucleoside using double [3,3] -sigmatropic rearrangement and double RCM

  • Kim, Ji-Hee;Zhe Fang;Kim, Kwan-Woo;Hong, Joon-Hee
    • Proceedings of the PSK Conference
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    • 2003.04a
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    • pp.243.1-243.1
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    • 2003
  • Extensive efforts in the search of therapeutically useful carbocyclic nucleosides have resulted in a wealth of their synthetic methodologies in racemic and optically active forms. The classical one-directional methods such as linear synthesis and convergent synthesis are the approaches most frequently seen in the literature for the preparation of carbocyclic nucleosides, and their advantages and limitations are well known. (omitted)

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The effects of C. annuum L. var. angulosum Mill on cancer cell lines and each organ of the mouse

  • Chung, Yong-Za;Lee, Jeong-Hee
    • Proceedings of the PSK Conference
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    • 2003.10b
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    • pp.152.1-152.1
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    • 2003
  • Under the vigorous search for active novel agents for cancer prevention and treatment, some agents have been found from plants and animals which are easily available. Our review of literature on them revealed that C. annuum L. var. angulosum Mill had high antiproliferating effect on cancer cells. Thus we investigated the efficacy of C. annuum L. var. angulosum Mill on cancer cell lines and to examined its effect on the mouse to detect other side effect and mechnism by which the extrat of C. annuum L. var. angulosum Mill had the anti-cancer efficacy on cancer. (omitted)

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Standard Translation of Terms of Korean Medicine through Consideration of Chinese-Korean Collated Medical Classics - With focus on 『Eonhaegugeupbang』, 『Eonhaetaesanjipyo』 and 『Eonhaetaesanjipyo』 - (언해의서 비교고찰을 통한 한의학용어의 번역표준안 - 『언해두창집요』, 『언해구급방』, 『언해태산집요』를 중심으로)

  • Ku, Hyunhee;Kim, Hyunkoo;Lee, JungHyun;Oh, Junho;Kwon, Ohmin
    • Korean Journal of Oriental Medicine
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    • v.18 no.3
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    • pp.49-61
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    • 2012
  • This article set out to develop an old Chinese - modern Korean collated terminology by analyzing and paralleling Chinese-Korean translational terms relevant to Korean medicine at a minimum meaning unit from "Eonhaegugeupbang", "Eonhaetaesanjipyo" and "Eonhaetaesanjipyo". Those are composed of original Chinese texts and their subsequent corresponding Korean translations. It tries to make a list of translational standards of Korean medicine terms by classifying the cases of translational ambiguity in terms of disease, body position, thumbnail-pressing acupuncture method, and disease-curing method. The above-mentioned ancient books are medical classics written by Huh Jun, the representative medical physician, and published by the Joseon government. Thus, they are appropriate enough as historically legitimate medical documents, from which are drawn out words and terms to form an old Chinese - modern Korean collation dictionary. This collation glossary will contribute to the increased relevance of data ming, or information retrieval. in a database system and information search engine of massive Korean medical records, by means of providing a novel way to obtaining synchronized results between the original writings of old Chinese and the secondary translated ones of modern Korean. The glossary will promote the collective but consistent translation of numerous old archives of Korean medicine and in other related fields as well.

A Study on the Concept of Korean Ruralism - Focusing on the Comparison of Research on Ruralism and Rurality in Korea- (한국 농촌다움 개념 연구 - 농촌다움과 농촌성 연구 비교 중심으로 -)

  • Yi, Dong-Yoon;Son, Yong-Hoon
    • Journal of Korean Society of Rural Planning
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    • v.27 no.3
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    • pp.69-84
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    • 2021
  • This study aims to understand the concept of 'ruralism' in Korea by comparing with 'rurality' which were dealt with in various fields related to rural areas in Korea. This study conducted a systematic literature review as a methodology. The process is defining key questions, searching for documents, classifying documents, extracting data, and presenting results. The key questions were set to 'How has the term 'ruralism' been used in various studies?' and 'How can the concept of rurality in Korea be organized?' according to the purpose of the study. The study retrieved literature by searching on Korean academic database, RISS and DBpia, using the five keywords '농촌성', '농촌다움', '농촌다운', 'Rurality,' and 'Ruralism.' The search yielded 1,014 documents which were thereafter screened by systematic literature review process. After sifting, only 31 publications were found suitable for inclusion in the final analysis. This study organized them into four categories: rural concept, rural landscape, rural tourism, and rural development. The literature divided into four types. Type I is a study that deals only with economy·society among studies related to rurality, Type II is a study that deals with both the economic·social and physical environment, Type III is a study that deals with the physical environment of a rural area and presents the rural planning principle as maintenance and preservation. Finally, Type IV is a study that presents ruralism as a new rural planning principle for a future rural area. In the end, the study discussed some implications on defining ruralism in Korea.

Surgical prevention of terminal neuroma and phantom limb pain: a literature review

  • Bogdasarian, Ronald N.;Cai, Steven B.;Tran, Bao Ngoc N.;Ignatiuk, Ashley;Lee, Edward S.
    • Archives of Plastic Surgery
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    • v.48 no.3
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    • pp.310-322
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    • 2021
  • The incidence of extremity amputation is estimated at about 200,000 cases annually. Over 25% of patients suffer from terminal neuroma or phantom limb pain (TNPLP), resulting in pain, inability to wear a prosthetic device, and lost work. Once TNPLP develops, there is no definitive cure. Therefore, there has been an emerging focus on TNPLP prevention. We examined the current literature on TNPLP prevention in patients undergoing extremity amputation. A literature review was performed using Ovid Medline, Cochrane Collaboration Library, and Google Scholar to identify all original studies that addressed surgical prophylaxis against TNPLP. The search was conducted using both Medical Subject Headings and free-text using the terms "phantom limb pain," "amputation neuroma," and "surgical prevention of amputation neuroma." Fifteen studies met the inclusion criteria, including six prospective trials, two comprehensive literature reviews, four retrospective chart reviews, and three case series/technique reviews. Five techniques were identified, and each was incorporated into a targetbased classification system. A small but growing body of literature exists regarding the surgical prevention of TNPLP. Targeted muscle reinnervation (TMR), a form of physiologic target reassignment, has the greatest momentum in the academic surgical community, with multiple recent prospective studies demonstrating superior prevention of TNPLP. Neurorrhaphy and transposition with implantation are supported by less robust evidence, but merit future study as alternatives to TMR.