• The Journal of Churna Manual Medicine for Spine and Nerves
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• v.13 no.1
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• pp.1-10
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• 2018

Objectives: To evaluate the evidence supporting the effectiveness of Chuna manual therapy for rheumatoid arthritis. Methods: We conducted a search across 9 electronic databases to find all randomized controlled clinical trials (RCTs) that used Chuna manual therapy as a treatment for rheumatoid arthritis. The methodological quality of each RCT was assessed using the Cochrane risk of bias tool. Results: Our inclusion criteria were met by 5 RCTs. The meta-analysis showed positive results for the use of Chuna manual therapy combined with oriental usual care (UC) in terms of the efficacy rate, pain, and duration of morning stiffness when compared to western UC. Positive results were also obtained in terms of the efficacy rate, when Chuna manual therapy combined with medication was compared to medication treatments alone. Conclusions: Our systematic review found encouraging, but limited evidence of Chuna manual therapy for rheumatoid arthritis. However, to obtain stronger evidence without the drawbacks of trial design and the quality of studies, we recommend a comparative research to test the effectiveness of Chuna manual therapy.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2022.11a
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• pp.227-228
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• 2022

The slowdown of the global economic market due to the pandemic is causing the global construction market to stagnate, and the use of smart construction technology is drawing attention as one of the main alternatives to overcome this problem. In fact, a number of previous studies have been published that smart construction technologies such as building information modeling and drones can contribute to project performance improvement, such as productivity improvement and cost reduction. However, previous studies focus on the application direction and technical effectiveness of smart construction technology, so the analysis in terms of the contribution that the application of the technology has to the project performance is insufficient. Therefore, the purpose of this study is to focus on the effectiveness aspect of the application of smart construction technology on the project performance. The results of this study are expected to be able to be used as basic data for establishing policies related to the activation of smart construction technology promoted by the government and setting the direction for the use of smart construction technology by stakeholders.

• International Journal of Quality Innovation
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• v.4 no.1
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• pp.131-147
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• 2003

This paper considers that a public department under specialized TQM manpower constraints have to implement multiple total quality management (TQM) policies to promote its service performance (fundamental goal) by adopting a centralized sequential advancement strategy (CSAS). Under CSAS, the decision-makers (DMs) start off by focusing specialized TQM manpower on a single policy, then transfer the specialized TQM manpower to the next policy when the first policy reaches the predetermined implementation time limit (in terms of education and training). Suppose that each TQM policy has a different desirous education and training goal. When the desirous goals for all TQM policies are achieved, we say that the fundamental goal will be satisfied. Within the limitation of total implementation period of time for all policies, assume the desirous goals for all TQM policies cannot be achieved completely. Under this premise, the optimal implementation sequence for all TQM policies must be calculated to maximize the weighted achievement of the desirous goal. We call this optimization problem a TQM case of "centralized sequential decision-making problem (CSDMP)". The achievement of the desirous goal for each TQM policy is usually affected by the experience in prior implemented policies, which makes solving CSDMP quite difficult. As a result, this paper introduces the concepts of sequential effectiveness and path effectiveness. The structural properties are then studied to propose theoretical methods for solving CSDMP. Finally, a numerical example is proposed to demonstrate CSDMP′s usability.

• Journal of the Korea Safety Management & Science
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• v.14 no.2
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• pp.147-158
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• 2012

This paper aims to develop a new chain metrics for obtaining lean Overall Equipment Effectiveness(OEE) and present implementation strategy which considers the properties for Total Productive Maintenance(TPM) to reduce machine losses, Performance Analysis and Control(PAC) to reduce labor losses, Lean Production System(LPS) to reduce floor wastes, and Theory of Constraints(TOC) to minimize the problem of Capacity Constrained Resource(CCR). The study reviews the related literatures and reformulates the structure of machine losses, labor losses and field wastes. The research also develops the integrated productivity metrics according to time, units, reliability and maintainability. It is found that the study develops the actual productivity measure in terms of efficiency, effectiveness and standard productivity. In addition to that, it outlines and develops by using the integrated LPS and TPM, lean OEE measures such as Time Based Productivity(TBP), Unit Based Productivity(UBP), and Reliability & Maintainability Based Availability(RMBA). Implication examples are proposed to make it easier and available for practioners to understand the implementation strategies about TPM OEE, lean OEE and TOC OEE. Futhermore related to other studies, the research contributes to create a new chain productivity measures to clear the interrelationship concepts of productivity, efficiency and effectiveness. Moreover the paper develops the enhanced OEE measures by integration of TPM, PAC, LPS and TOC with the perspective of schedule, throughput, reliability, maintainability and availability.

• Environmental and Resource Economics Review
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• v.19 no.4
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• pp.753-769
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• 2010

This study empirically analyzes the comparative advantages between separate hedging and complex hedging in terms of hedging effectiveness when there exist multiple risks of LNG price and exchange rate. According to the empirical ex-ante analysis, the mean of procurement costs could be reduced through hedging regardless of hedging type. In addition, the standard deviation of procurement costs could also be reduced by way of hedging, implying that a hedging should contribute to the stabilization of revenue flows. More importantly, complex hedging could be more effective for some hedging periods than separate hedging in terms of revenue stabilization. Therefore, one could verify that the hedging effects improve by making use of the variance-covariance relationship existing between commodity price and exchange rate.

• Journal of The Korean Association For Science Education
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• v.14 no.3
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• pp.285-292
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• 1994

The purpose of this study is to investigate the misconception about circulatory / excretional system and to determine the effectiveness of two teaching strategies. The subject was 214 middle school students. The control group was instructed with the traditional teaching method.On the other hand, the experimental group was taught with the concept mapping teaching method. Then the effectiveness of the two teaching strategies were compared in terms with the changes of their conceptions about circulatory/excertional system. The major findings of this study are as follows. 1. The major misconception types were identified. 1) The function of blood is only transportation. 2) The artery is equal to arterial blood. 3) The colon and the anus are also excretional organs. 4) Urine is formed from the bladder. 5) Urine and feces are also excrement. 2. Different conceptional change was observed between control group and experimental group at 0.05 significance level. The concept mapping strategy was more effective than traditional teaching method. 3. No significent difference was found between male and female students in the effectiveness of concept mapping strategy.

• Journal of Korean Library and Information Science Society
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• v.22
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• pp.1-26
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• 1995

Indexes, especially subject indexes, are major tools for information retrieval. To enhance the retrieval effectiveness of subject indexes, the semantic and syntactic relationships of indexing languages are very important elements. This paper examines the afore-mentioned relationships, based on purely the syntax and semantics of Korean language. The outlines of this study are as follows: 1. The characteristics and usages of controlled vocabularies, particularly subject headings lists and thesaury, are reviewed. 2. The semantic relationships, such as equivalence, hierarchical and associative relationships, are defined, and their categories are investigated in detail. Accordingly, the usages of 'See' and 'See also' references are suggested circumstantially. 3. The syntactic relationships are also examined. Particularly, for the syntactic relationships of multiword indexing terms, two kinds of subject entry formats are compared. Since it is more rational for subject headings organized by the principle of context-dependency, the two-fine entry format is recommended for subject indexes. 4. Computerized production techniques of 'See' and 'See also' reference for the semantic relationships of indexing terms are presented. 5. Computerized production techniques of subject indexes representing the syntactic relationships of indexing terms are also presented.

• Proceedings of the Korean Society for Language and Information Conference
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• 2002.02a
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• pp.249-258
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• 2002

We propose an algorithm for the automatic acquisition of a bilingual lexicon in the legal domain. We make use of a parallel corpus of bilingual court judgments, aligned to the sentence level, and analyse the bilingual context profiles to extract corresponding legal terms in both languages. Our method is different from those in past studies as it does not require any prior knowledge source, and naturally extends to multi-word terms in either language. A pilot test was done with a sample of ten legal terms, each with ten or more occurrences in the data. Encouraging results of about 75% average accuracy were obtained. This figure does not only reflect the effectiveness of the method for bilingual lexicon acquisition, but also its potential for bilingual alignment at the word or expression level.

• Journal of Electrical Engineering and Technology
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• v.3 no.4
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• pp.514-519
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• 2008

The non-separable quadratic penalty terms create an inherent difficulty when applying the standard augmented Lagrangian relaxation(ALR) method for decomposing the unit commitment problem into independent subproblems. This paper presents a separable augmented Lagrangian relaxation method for solving the unit commitment problem. The proposed method is designed to have a separable structure by introducing the quadratic terms with additional auxiliary terms in the augmented Lagrangian function. Numerical results are presented to validate the effectiveness of the proposed method.

• IE interfaces
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• v.12 no.2
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• pp.274-284
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• 1999

This study is aimed at examining the relationship among the advanced manufacturing technology(AMT) types adopted in Korea, necessary strategic management activities for the selected AMT types and the performance of the AMT introduced. In order to identify such relationship, multivariate analyses are used based on the survey data collected from industry types such as metal processing and assembly, automobile parts, automobile assembly. electric and electronic devices. The study results indicate the following: (1) companies using CIM or ERP tend to be more prepared in terms of human resources; (2) companies adopted CIM and MRPII tend to demonstrate higher performance in terms of both organizational effectiveness and operational efficiency; (3) companies which adopted JIT or ERP perform better in terms of operational efficiency.