• 지역연구
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• 제34권1호
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• pp.19-30
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• 2018

사회간접자본은 한 사회가 발전하고 정상적으로 작동하는 데 필수적 요소이다. 이러한 중요성에도 불구하고 사회간접자본을 얼마나 투자해야 하는가에 대한 기준은 명확하지 않으며, 투자의 한 축을 담당하고 있는 지방정부의 사회간접자본 투자에 대한 논의는 거의 이루어지지 않았다. 지방정부의 권한이 충분히 보장되면, 지방정부는 주민이 원하는 지방공공재에 대한 투자를 늘린다. 그러한 주민 선호의 반영은 자원배분의 효율성을 가져온다는 것이 분권화 정리의 핵심 개념이다. 본 연구에서는 지방재정을 통해 지방정부의 권한과 자율성을 측정하고 지방정부의 사회간접자본 투자에서도 분권화 정리에 따른 의사결정이 이루어지는가를 살펴본다. 지방정부가 투자에 영향을 줄 수 있는 사회간접자본 시설(도로, 상하수도, 수리치수 시설) 투자에 대한 재원별 탄력성을 추정한 결과 특별 광역시와 그에 속한 기초지자체의 의사결정과 도와 도에 속한 기초지자체의 의사결정은 서로 달랐다. 이러한 차이는 1인당 지방세가 투자에 미치는 영향에서 가장 명확하게 나타났다. 이러한 결과는 지방정부가 주어진 상황에 따라 사회간접자본 투자를 달리하며 투자 결정에 있어 주민 선호를 반영한다는 것을 보여준다. 이것은 사회간접자본 투자에 대한 지방정부의 역할이 커질 때, 자원배분의 효율성이 증가할 수 있음을 보여준다. 그리고 지방정부의 역할 증대는 중앙정부의 재정지원 보다 지방정부의 세입 세출 자율성을 동시에 보장하는 방식이어야 한다는 것을 의미한다.

• Spatial Information Research
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• 제8권1호
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• pp.15-29
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• 2000

최근 급변하는 기술환경에서 향상된 정보서비스를 제공하기 위하여 지자체 또는 중앙정부차원에서 막대한 예산을 투입하여 GIS를 활용한 행정업무의 전산화를 추진하고 있거나 추진할 예정이다. 이러한 시점에서 예산의 중복투자 방지, 기 투자재원리 재활용을 극대화한다는 측면에서 행정업무 전산화의 특징을 살펴 행정업무 전산화사업에 있어서 GIS 응용 컴포넌트의 도입 가능성을 검토하고자한다. 본 연구서는 정보통신부 주관사업인 「개방형 GIS 컴포넌트 S/W 개발」 프로젝트에서 토지민원서비스 응용 컴포넌트를 개발하였다. GIS 응용컴포넌트는 OpenGIS의 OLE/COM 기반으로 만들어지며, 그 개발방법으로는 USD (Unified System Development), 시스템설계는 UML(Unified Modeling Language), 컴포넌트의 구현은 Visual C++를 이용하였다. 구현된 컴포넌트들은 Process Control, Map, Print, Statistics 컴포넌트들로서 Visual Basic 과 Delphi를 이용하여 구현된 컴포넌트를 검증하였다. 본 연구의 결과 컴포넌트의 개발이 지자체의 GIS 업무개발에 매우 유용하게 활용될 것으로 판단된다. 그러나 업무활용의 극대화를 위해서는 업무, 자료, 시스템의 표준화가먼저 선행되어야 할 것으로 보인다.

• Journal of Communications and Networks
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• 제16권3호
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• pp.305-310
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• 2014

Optimal position of access point (AP) is important for multi-gigabit wireless transmission in terahertz (THz) wireless local area network (WLAN)-type applications, where there exist the THz characteristic multiple clusters in channel propagation. By considering the multiple clusters in THz indoor communications, this paper investigates the optimal AP position when two APs are issued for increasing the system capacity. Numerical results reveal that the central position of each AP within each half service region, which offers the shortest cumulated path length for line-of-sight paths, is optimal to achieve the maximal system capacity.

• 자원ㆍ환경경제연구
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• 제16권3호
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• pp.643-651
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• 2007

The Environmental Kuznets Curve Hypothesis postulates an inverted-U shaped relationship between GDP per capita and various pollutants. Pollutants emission increases up to a certain level as income goes up; after that, it decreases. This paper investigates the relationship between industry pollutants taking industrial sulfur dioxide omission as example, and economic growth by using province-panel data set from 1989 to 2004 in 28 provinces of P. R. China. The result shows that the EKC hypothesis may be supported in the case of industrial sulfur dioxide, and the GDP per capital of turning point is about RMB 13,548 (at 1978 price). Except Shanghai, all the provinces GDP per capital in this study are less than RMB 13,548, indicating the amount of industrial sulfur dioxide emission will be increasing in the near future. To realize sustainable development and pollutants abatement, the central and local government should adopt an integrated strategy to protect environment.

• 전력전자학회:학술대회논문집
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• 전력전자학회 2018년도 전력전자학술대회
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• pp.138-140
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• 2018

Parallel distributed generators (DGs) in the islanded microgrid are generally operated autonomously by means of the droop control scheme. However, the traditional droop control methods which use the P-${\omega}$ and Q-E curve to share power between DGs are still concerned to improve the accuracy of reactive power sharing. Moreover, the uncontrolled harmonic power reduces the point of common coupling (PCC) voltage quality and microgrid stability. In order to solve these problems, this paper proposes an enhanced PCC harmonic control strategy and an improved reactive power sharing control scheme. Based on the low bandwidth communications, a secondary control is implemented with both central controller and local controller. The effectiveness of the proposed control scheme is analyzed through the simulation.

• 설비공학논문집
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• 제13권11호
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• pp.1072-1078
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• 2001

The real time optimal control algorithm of the DDC controller for chilled water and supply air temperature set-point of heating, ventilating, air-conditioning and refrigeration systems has been researched for minimization of the total power which is consumed by the chiller, chilled water pump and air handing unit fan. The study has been done by using TRNSYS program in order to analyze the central cooling system in terms of the environmental variables such as indoor cooling lead and wet-bulb temperature. This optimal control alogorithm saves more energy and is suitable for real time on-line control in comparison with conventional method.

• 전력전자학회:학술대회논문집
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• 전력전자학회 2016년도 추계학술대회 논문집
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• pp.47-48
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• 2016

Parallel distributed generators (DGs) in the islanded micro-grid are normally controlled with the aid of the droop control scheme. However, the traditional droop control methods which use the P-${\omega}$ and Q-E curve to share power between DGs are still concerned to improve the accurate of reactive power sharing and variation of frequency and voltage at the point of common coupling (PCC). This paper proposes a control scheme to solve the limitation of microgrid in islanded operation such as reactive power sharing accuracy and PCC voltage and frequency restoring. In order to achieve the control objective, a secondary control is implemented with both central controller and local controller by using the low bandwidth communications. The effectiveness of the proposed control scheme is analyzed through the simulation.

• 한국과학예술포럼
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• 제24권
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• pp.399-409
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• 2016

본 논문은 유네스코 지정 미디어아트 창의도시 8개 도시 중 모범적인 3개 창의도시와 주요축제를 각각 미디어아트와의 연관성을 조사하였다. 창의도시 관점에서는 그 도시만이 가지고 있는 역사, 자연환경, 인적자산 등 장점의 극대화를 바탕으로, 도시의 비전과 미디어아트 창의도시로서 일치화가 필요하며, 창의도시 컨트롤타워의 일관성 및 지속화로 도시의 지속가능한 성장을 모색해야 한다. 지역축제 관점에서는 미디어아트 관련 축제를 차별화하여 세계적인 축제로 집중육성하고 비관련 축제들을 미디어아트와 융합을 유도하고, 미디어아트 프로그램의 다양화와 대중화, 그리고 온·오프라인 축제와 아날로그·디지털 축제의 융합으로 청년들의 참여를 이끌어내야 한다. 결국 미디어아트 창의도시 구축을 위해서는 도시 고유의 장점을 극대화하면서 미디어아트의 일치화를 통해 미디어아트 창의도시로서 이미지를 제고하고, 다양한 축제들을 미디어아트 기술의 융복합화 및 차별화로 세계적인 축제를 만들 수 있는 창의도시와 지역축제의 융·복합과 협치가 필요하다는 결론에 도달하였다.

• The Journal of Korean Physical Therapy
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• 제16권4호
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• pp.23-37
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• 2004

Fibromyalgia syndrome(FMS) is a chronic pain disorder of unknown etiology characterized by widespread musculoskeletal aches and pains, stiffness, and general fatigue, disturbed sleep and sleepiness. Frequently misdiagnosed, FMS is often confused with myofascial pain syndrome, polymyalgia rheumatica, polymyositis, hypothyroidism, metastatic carcinoma, rheumatoid arthritis (RA), juvenile rheumatoid arthritis, chronic fatigue syndrome, or systemic lupus erythematosus, any of which may occur concomitantly with FMS. The management of FMS often begins with a thorough examination and a diagnosis from a physician who is formally trained in tender-point/trigger-point recognition. An initial diagnosis provides reassurance to the patient and often reduces the anxiety and depression patterns associated with FMS. The most common goals in the management of FMS are (1) to break the pain cycle, (2) to restore sleep patterns, and (3) to increase functional activity levels. Because FMS is a multifactorial syndrome, it is likely that the best treatment will encompass multiple strategies. Medication with analgesics and antidepressants and also physiotherapy, are often prescribed and give some relief. The other most effective intervention for long-term management of FS to date is physical exercise. Physical therapists can instruct patients in the use of heat at home (moist hot packs, heating pads, whirlpools, warm showers or baths, and hot pads) to increase local blood flow and to decrease muscle spasm and tension. Also instruct patients in the proper use of cold modalities (ice packs, ice massage, and cool baths) to anesthetize localized areas of pain (tender points) and break the pain cycle. Massage and tender-point massage also may promote muscle relaxation. To date, the two most important interventions for the long-term management of FS are patient education and physical exercise. Lately, is handling FMS and Chronic Fatigue syndrome(CFS) together, becuase FMS and CFS are poorly understood disorders that share similar demographic and clinical characteristics. Because of the clinical similarities between both disorders it was suggested that they share a common pathophysiological mechanism, namely, central nervous system dysfunction.

• 한국안전학회지
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• 제33권2호
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• pp.138-144
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• 2018

Disaster relief goods are those that help disaster victims to carry on ordinary life in a disaster. Along with the improvement of national economic level and raise of people's standard of living and diversified lifestyles, demands for relief goods in a disaster are also being diversified. In step with frequent and rather large-scale occurrence of disasters, diversity of related goods for disaster relief is likely to be needed ever more in the future, while more assistance to disaster victims is required from the aspect of securing their normal daily lives. To this end, the study conducted comparative analysis of how Korea, the US and Japan managed disaster relief goods and also examined, analyzed the opinions regarding the betterment of relief goods among disaster victims and ordinary people and civil servants in charge. Based on this, the study suggested the improvement draft for disaster relief goods, the point of which was to minimize disaster relief goods commonly prepared by the central government with goods that may assist victims' lives in shelters, while local governments may prepare relief goods appropriately according to actual situation.