• KSCE Journal of Civil and Environmental Engineering Research
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• v.36 no.3
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• pp.511-520
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• 2016

It is essential to connect the railroads between South and North Korea in order to the implementation of the Eurasia initiatives and prepare for the normalization of the economic cooperation between south and north Korea as well as the unification. This study provides the strategy to establish the rail logistics network for the normalized trades between south and north Korea, and the accommodation of the logistics demands to China and Russia. The alternative routes were designated and the costs for the rehabilitation were estimated, and suggested the priority for the investment. The Trans-China Rail is prior to the Trans-Siberia Rail in terms of the utility for the logistics and the political value. In connection to the TSR, it is desirable to pass the Seoul-Gyeonggi area where the demand is greater than the other area. This route is limited by the restriction in the capacity, then the Gyeonggi Ring Rail route may be necessary.

• Journal of IKEEE
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• v.24 no.3
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• pp.913-916
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• 2020

In this paper, we propose the development of nitrogen cooling equipment for personalized local area. The proposed equipment consists of a cold air supply module, a body, and nitrogen injection with the following characteristics. First, it automatically controls the amount and time of cold air supply by utilizing information measuring skin temperature with volumetric temperature sensors, so it can have a competitive edge in function by ensuring complete safety. Second, if the distance measuring sensor is applied to the skin for more than a certain distance, it can block the cold air or control the discharge of nitrogen in conjunction with the control GUI to improve the efficiency of higher cooling therapy while providing safe management. Third, by installing a control module that can control the supply of nitrogen, the cost of maintenance can be minimized by minimizing the loss of nitrogen. Experiments at an external testing agency to evaluate the performance of the proposed equipment showed that the accuracy of the temperature sensor was measured in the range of ±3.8%, which is lower than the world's highest level(±5%), with a range of 110℃ to -160℃ similar to the world's highest level. Distance accuracy was measured in the range of ±3.0%, lower than the world's highest level(±5%), and weight accuracy in the range of ±0.1%, lower than the world's highest level(±5%). In addition, emission control was measured in four stages, higher than the world's highest level(stage 1) and nitrogen use was measured at 0.8L/min below the world's highest(6L/min). Therefore, the effectiveness of the methods proposed in this paper was demonstrated because they produced the same results as the world's highest levels.

• Journal of Pharmacopuncture
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• v.6 no.1
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• pp.33-34
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• 2003

배경: 독일 의사와 보험회사 위원회 (The German Board of Physicians and Insurance Companies:Bundesausschuss der Arzte und Krankenkassen)가 앞으로 일부 적응증에 대한 침치료에 대해 공적 보험회사가 보험료를 지급해야 할 지에 대한 추가 결정을 하기 위해 침의 효과를 평가하기로 했다. 목적: 1) 침치료가 편두통의 예방, 긴장성 두통, 요통, 무릎과 고관절의 골관절염치료에 대조군 침치료보다 효과가 있는지 검증 2) 침치료가 편두통의 예방적 치료에 표준 약물 치료와 비슷하게 효과가 있는지 검증 3) 보건의료 서비스체계 안에서 주어진 조건에 대한 일상적 침치료의 질적인 부분을 서술하고, 안전성을 평가하며, 다른 침술학파간의 임상결과의 차이와 비용의 효용적 활용부분을 평가한다. 4) 위의 적응증에 해당하는 모든 임상실험연구를 찾아내어 기존의 고찰내용을 갱신한다. 방법: 1) 무작위 표본추출 임상 실험, 침치료, 거짓침 치료, 대기자 명단 대조군, 출발시점 4주, 28주 관찰 2) 무작위 표본추출 임상 실험, 침치료, 표준약물치료 대조군, 츨발시점 4주, 28주 관찰 3) 전향적 다중 의료기관 관찰 연구, 두 가지 다른 자료를 활용하여서, 치료 결과를 침 시술자에 의한 모든 환자 평가 자료와, 열 두 명의 환자 가운데 한 명의 환자로부터 직접 받은 평가 자료 (관찰 출발시점, 치료 출발 시점, 치료 시작 후 6 개월) 실험공간: 1) and 2) 높은 수준의 수련을 한 침 시술 의사가 시술하는 병원이나 일차 진료기관의 외래. 3) 보건 의료 서비스내 저급의 침 시술 의사 (140 시간 수강, 학점 이수 필수) 참가자: 1) $4{\times}320$ 편두통의 예방, 긴장성 두통, 요통, 무릎과 고관절의 골관절염 환자 2) 480 편두통 환자(긴장성 두통 환자 추가적) 3) 약 500,000 환자, 2년 반 동안: 대략 한 적응증 당 10,000 환자 치료법: 모든 침치료 자리는 체침만 허용함. 1) 진짜 침은 학파의 지침에 따른 심자, 거짓 침은 비특이적 자리의 표피만 찌르는 자침 (12-15회, 8주): 대기자 대조군은 12주 동안에 아무 치료도 받지 않는다. 2) Group 1(N=240): 최대 15회 치료, 12주 동안: Group II (N=240) 투약 Proponolol (80-240mg), Metoprolol (100-200mg) or Flunarizin (5-10mg) 하루, 16주 이상 3) 치료회수와 침자리의 선정은 참가자가 결정 주된 임상 결과 지표: 1) 군 간의 치료 전 및 치료 진행 도중 4주 마다의 두통을 느낀 날 수의 차이 (평균 혹은 이상의 편두통이나 긴장성 두통) 2) 요통환자 군간의 기능을 측정하는 FFbH-R (Funktionsfragebogen Hannover) 비교 3) 관절염 환자의 군간 WOMAC 지표 비교 4) 군 간의 24주 동안 두통을 느낀 날 수의 차이(평균 혹은 이상의 편두통이나 긴장성 두통) 5) 적응증, 부작용, 성공율에 대한 거시적 평가, 사용한 침수, 환자의 만족도, SES(?). ADS(?) 통증 장애 지표(PDI), 삶의 질 지표(SF36). 예비 결과 위의 결과가 큰 관찰 연구에 초점을 맞추면서 소개될 것임.

• Environmental and Resource Economics Review
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• v.13 no.3
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• pp.337-366
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• 2004

Contingent Valuation Method (CVM), as non-market valuation approach, has been criticized on that respondents may not realistically reflect their budget constraints in answering willingness to pay (WTP) for hypothetical CV questions. This paper empirically estimates the income calibration factor associated with CV responses through combining travel cost method and contingent valuation method in a utility-theoretic framework. The joint model of recreation demand function and contingent WTP function was applied to an important case study on the Man Kyoung River system, whose water quality is at issue because of the Sae Alan Kum reclamation project. Relevant economic variables such as price, income and water quality had significant influence as anticipated by the economic theory. Equally important, the income calibration factor was not significantly different from one, suggesting that the systematic discrepancies of CV responses relative to the actual behavior was not detected at least in terms of budget exaggeration. Overall, this study supports the notion that carefully designed CVM studies can provide informative data on individuals' willingness to pay for environmental quality changes.

• Journal of Korea Soil Environment Society
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• v.3 no.2
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• pp.127-145
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• 1998

Unlike water or air quality standards that have been established by legislation using potential human health impact as the primary criterion, soil quality depends on the soils primary function and its relevant environmental factors, which is much more site- and soil specific. A properly characterized soil quality assessment system should serve as an indicator of the soil capacity to produce safe and nutritious food, to enhance human and animal health, and to overcome degrative processes. For our proposed example, a high quality soil with regard to maintaining an adequate soil productivity as a food production resources must accommodate soil and water properties, food chain, sustainability and utilization, environment, and profitability, that (i) facilitate water transfer and absorption, (ii) sustain plant growth, (iii) resist physical degradation of soil, (iv) produce a safe food resources, (v) cost-effective agricultural management. Possible soil quality indicators are identified at several levels within the framework for each of these functions. Each indicator is assigned a priority or weight that reflects its relative importance using a multi-objective approach based on principles of systems to be considered. To do this, individual scoring system is differentiated by the several levels from low to very high category or point scoring ranging from 0 to 10, And then weights are multiplied and products are summed to provide an overall soil quality rating based on several physical and chemical indicators. Tlne framework and procedure in developing the soil quality assessment are determined by using information collected from an alternative and conventional farm practices in the regions. The use of an expanded framework for assessing effects of other processes, management practices, or policy issues on soil quality is also considered. To develop one possible form for a soil quality index, we should permit coupling the soil characteristics with assessment system based on soil properties and incoming and resident chemicals. The purpose of this paper is to discuss approaches to defining and assessing soil quality and to suggest the factors to be considered.

• Journal of Convergence for Information Technology
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• v.10 no.4
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• pp.35-45
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• 2020

To diversify the agro-food exports of Korea, this study selected Russia, which is located closet to CIS countries, as a sampling area and sought ways to promote the export of Korean hang over drinks to Russia. This study analyzed the contributing factors to the export, such as Russian consumers' purchasing intentions, as well as the willingness to pay of korean hang over drinks in Russia, using the paper review and on-off line survey data correction method. Major results are as follows. First, Russian consumers' intention of purchasing Korean hang over drinks is higher than Europe and the other products. Therefore, it is necessary to understand the demographic characteristics of Russian consumers and then actively use niche marketing strategies. Second, the purchase intention of Russian consumers towards increased when buying behavior occurred in supermarket, hypermarket- and convenience stores. Third, it seems prefer to pricing of Korean hang over drinks in Russian export market similar to the domestic price level.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2008.11a
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• pp.278-281
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• 2008

As all industries field has changed very quickly, the field of construction faces in many changed. It is the representatively change that focus on the growth of quality level than increase of the quantity in construction. Whether the project successes or not is related to the survival of the company and it is necessity that we need performance measurement indicators to complete the project successfully. The domestic construction company considers overbearingly the cost-performance indicator in executing a project so far. It is rare of studies that suggest the methodology of more deeply measurement and analysis about the each project itself. The performance measured methodology based on Lean Construction is linked with the each project performance measurement methodology. This methodology uses three indicators such as the reliability, effectiveness and productivity at the sane their measuring whether each task is completed at the point of work. The measurement on the three performance indicators measure and evaluate whether the task is completed on the focus of construction duration. The research suggest the work plan reliability and weight of the performance measurement methodology based on the Lean Construction and the three considerately in the scope of measurement. If the suggestion is considered fully, we can indicate more objective and accurate construction project performance measurement indicators based on Lena Construction.

• Journal of the Korean Society for Railway
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• v.19 no.5
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• pp.698-707
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• 2016

An emergency manual is designed to minimize the extent and effect of lives and assets; it is not designed to prevent an accident. There have been continuous arguments in terms of manual effectiveness regardless of the fact that much effort and great cost have been invested in emergency planning and operations. The problems are that there are a number of different emergency manuals, that these manuals are hard to understand and rarely used due to their complexity, that they provide little direction toward the taking of action, and that coordination is difficult between those involved; all of these problems are related to two different pieces of legislations that define emergency manuals in different ways in terms of the contents required. The study has tried to respond to these arguments by exploring relevant legislation to identify emergency manuals that can be used to respond to rail incidents/accidents, for which previous responses have seemed inefficient. Further, some parts of the emergency manual contents are found to overlap, including the ways of differentiating incident responses, personnel roles and responsibilities by types of accident, and threat levels, all of which has resulted in unnecessary pages of the manuals. In preparing and operating such manuals, this study recommends that one piece of legislation that directly affects rail undertakings must be applied in an effort to increase effectiveness.

• Spatial Information Research
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• v.21 no.4
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• pp.15-24
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• 2013

Recently, as the spatial information and various multimedia are fused together, the demand for the high value-added spatial information contents and the necessity of technology for spatial information security are increasing. However, since the current security policy is being managed independently by each system, there is a problem with unreliable or costly to modify or revise the security policy. Such problems occur frequently in the process of coordination or integration of the spatial information management systems that are used in public institutions and private companies. Therefore, in this paper, the access control system that could provide an integrated security policy for many spatial platforms and systems with expandable grammar and semantics was designed and implemented based on GeoXACML proposed by OGC. As the GeoXACML-based access control system designed and implemented in this paper follows the international standard specifications, it provides high portability and interoperability. Finally, in this paper, the efficiency of the system was proved by applying it to a virtual scenario on the military area requiring the access control.

• KDI Journal of Economic Policy
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• v.35 no.1
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• pp.1-32
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• 2013

Economic sanctions and inducements are types of 'policy instruments' based on 'economic tools' to influence other international actors. Ongoing debates on sanctions and inducements have exposed drawbacks for relying on individual case studies. There are some studies in the literature that attempt theoretical analysis of sanctions and inducements, but they are mostly based on rational choice theory. In reality, however, there exist so many cases that cannot be explained by rational choice theory. These are called anomalies or exceptions. The literature introduces specific variables to interpret these anomalies and thus sacrifice the universality of the theory. From this point of view, prospect theory would present an effective tool to analyze economic sanctions and inducements. It is a behavioral economic theory that tries to model a decisions making process in reality. The theory says that people make decisions based on subjective value of losses and gains from an individual reference point, and that people evaluate these losses and gains using heuristics. Thus prospect theory could offer a different frame which has greater explanatory range without adding new variables. As a result of this study, target's losses of 'back down' towards economic sanctions loom larger when the reference point level increases, therefore, the effectiveness of sanctions decreases. However, target's losses of 'stand firm' towards economic inducements loom larger under the same condition of reference point, therefore, the effectiveness of inducements increases. The findings of the paper suggest meaningful implications to the economic policy towards North Korea.