• 한국콘텐츠학회논문지
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• 제19권11호
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• pp.297-313
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• 2019

중국의 '일대일로'는 중국과 유라시아 경제권을 육상과 해상으로 연결하여 하나의 경제권으로 발전시키고자 하는 국가발전 전략이다. 따라서 중국의 '일대일로' 건설은 중국과 세계 경제발전의 새로운 동력은 물론 국제경제 질서의 변화와 중국경제의 위상 제고로 국제경제에 적잖은 영향이 예상된다. 우선 '일대일로'는 현재 중국경제가 안고 있는 과잉설비와 과잉생산 문제를 상당 수준 해결함은 물론 동·서부지역 간의 발전격차를 어느 정도 해결하여 중국의 사회 안정에 역할을 할 것이다. 뿐만 아니라 에너지 자원의 안정적인 공급으로 중국경제의 안정적인 발전에도 기여가 예상된다. 중국의 '일대일로'는 또한 중국과 '일대일로' 연선 국가의 경제발전 외에 국제경제에서 중국의 영향력과 위안화의 국제화 수준을 제고시켜 중국의 위상을 제고시킬 것이다. 특히 국제 사회에서 그동안 패권을 장악해오던 미국의 영향력을 약화시킬 것이다. 따라서 중국과 밀접한 경제 관계를 유지하고 있는 우리나라는 중국의 '일대일로' 건설에 따른 중국경제의 위상변화를 예의 주시하며 대응책을 마련할 필요가 있다.

• 한국콘텐츠학회논문지
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• 제19권7호
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• pp.335-347
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• 2019

중국의 '일대일로' 구상은 중국과 유라시아 경제권을 육상과 해상으로 연결하여 하나의 경제권을 형성하는 초대형 프로젝트이다. 따라서 순조롭게 진행될 경우 중국과 세계 경제발전의 새로운 동력은 물론 국제경제의 구도를 변화시키는 요인이 될 것이다. 특히 유라시아 대륙이 세계 경제의 중심으로 발전하는 계기가 될 수도 있다. 그러나 중국의 '일대일로' 구상은 거시적이고 장기적일 뿐만 아니라 복잡성을 내포하고 있어 발전을 낙관하기 어렵다. 하지만 '일대일로'는 중국이 2049년까지 완성한다는 장기적 국가발전 전략으로 강력하게 추진하고 있고, 현재 중국과 '일대일로' 연선 국가 간의 경제적 보완성이 강하고, 또 연선 국가들의 상당수가 '일대일로' 건설을 기대하고 있어서 가능성이 전혀 없는 것은 아니다. 특히 현재 중국이 추진하고 있는 '일대일로'의 다양한 정책적 내용으로 볼 때 발전 가능성을 완전히 배제할 수 없다. 설령 '일대일로'는 발전이 순조롭지 못하더라도 진행 과정만으로도 중국은 물론 주변국에 상당한 경제적 효과를 가져다줄 것이기 때문에 충분한 의미가 있다고 하겠다.

• 한국콘텐츠학회논문지
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• 제22권9호
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• pp.283-297
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• 2022

본 연구는 중국기업의 '일대일로' 연선 국가에 대한 직접투자 전략과 구조를 더닝(Dunning)의 OLI 패러다임 관점에서 분석하였다. 중국기업의 '일대일로' 연선 국가에 대한 투자는 크게 두 가지 전략적 목적에서 추진 되었다. 하나는 '일대일로' 연선 국가의 자원보유 특성상 에너지자원 확보를 위한 투자이고, 또 다른 하나는 중국 국내경제의 문제인 과잉설비 문제를 해결하기 위한 이전(移轉) 투자이다. 중국기업의 이러한 '일대일로' 연선 국가에 대한 투자는 더닝이 OLI 패러다임에서 제기하고 있는 투자 결정 조건, 즉 소유권 우위와 지역특유의 우위 그리고 내부화 우위를 갖춘 가운데 투자를 진행한 것으로 평가된다. 다만 차이가 있다면, 이 지역이 갖는 특수성으로 인해 자원보유 현황 및 제도적 환경의 영향 외에 국제관계의 이해관계 구도, 종교적 갈등 문제와 문화적 이질성 그리고 이 지역 국가들의 중국기업에 대한 인식의 문제 등의 영향으로 투자국가와 투자방식 그리고 투자업종을 달리하고 있다는 점이다.

• 한국자동차공학회논문집
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• 제10권6호
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• pp.209-218
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• 2002

A V belt pulley is widely used in automotive industry. More than tow pulleys in one automobile are used, such items as crankshaft, water pump, air-con compressor and power steering pump. Although the shape and usage of pulleys are very simple, the design evaluation of a pulley design is difficult because the load conditions and the installation environment are complicated. So, we formulated the design evaluation for the V belt pulley by using CAE system, which enables to develop a design automation system. By using this system, an engineer can evaluate a pulley design easily without any painstaking effort, such as consideration of the complicated loads and CAE activities. Also the system helps to accumulate the design experience of a company, which guides the optimum design based on experience.

• 한국자동차공학회논문집
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• 제20권4호
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• pp.119-124
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• 2012

Ceramics are becoming one of the most important materials due to its good mechanical properties such as high strength, hardness, chemical safety, and high modulus of elasticity. Ceramics have been used widely as a material not only for construction, but also for vehicles, planes, and bones for the human body. Despite these advantages, ceramics have some limitations in actual use due to its brittle fracture characteristic. In order to develop ceramic belt in this study, the data regarding stiffness and strain is necessary. For this purpose, the sensitivities of maximum stress value and displacement are analyzed by applying the load change on ceramic belt with finite element method program.

• 한국염색가공학회지
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• 제13권1호
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• pp.68-75
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• 2001

Tensile and shrinkage characteristics of DTY, EDY and Macel were investigated experimentally. The drawn textured yarn(DTY) made by an existing belt type false twist and the elastic drawn textured yarn(EDY) made by non-torque false twist method modified from the belt type one. Macel was the yarn which had drawn and un-drawn arrangements. The tenacity of EDY had lower value than that of DTY. EDY had higher strethch than that of DTY. Especially Macel yarn had higher stretch than that of DTY compared with the same diameter of yarn. With time course behavior the tenacity and elongation of DTY and EDY had stabled tendency without variation. Before scouring Process, the wet and dry shrinkage patio of EDY load higher value than that of DTY. However, they decreased artier the process. At the same time, the stretch characteristic of EDY was significant as the diameter of yarn became higher.

• Journal of Power Electronics
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• 제11권3호
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• pp.319-326
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• 2011

Nowadays numerous research projects are being conducted in the field of electric motors. Non-modeling of flexible connections such as couplings and the belt-pulley do not show some real behaviors. With an increase in the number of connections and drive factors, these Non-modeled modes become more important. The coupling of two electric motors, instead of one motor, in submarine propeller force is an obvious example which shows that Non-modeled vibration modes caused by flexible connections can disturb controller operation and make undesirable vibrations in the submarine body. In this paper a dynamic model of flexible connections and a completed dynamic model of two different coupled electric models is presented. A robust controller for the completed model is also amended so that the two controlling targets of a desired speed adjustment and an appropriate load division between the two motors with sufficient accuracy are achieved.

• 산업기술연구
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• 제21권B호
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• pp.281-286
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• 2001

In this study, product design and prototype manufacturing of a plastic water-pump pulley has been tried. The designed model is supposed to be made of 33 % glass reinforced resin of which the tensile strength is 180 MPa, and has 24 ribs on each side to increase its structural strength. Structural analysis under a static load of 300 kgf acting on both edges of the belt has been carried out using a commercial finite element code, MARC. The analysis result showed the maximum effective stress near a rib of designed model would be at most 35 MPa (less than 20% of the tensile strength), therefore, the plastic product would be sufficiently safe under that loading condition. On the basis of the structural analysis, a prototype of the designed model has been manufactured by using the fused deposition modelling (FDM) method which is one of the rapid prototyping (RP) methods, using ABS resin and support materials. The CAD data exported to the RP system in STL format was prepared by a commercial solid modeling software, SolidWorks. It has been proved that the plastic pulley can successfully replace the existing flow-formed steel product.

• 한국포장학회지
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• 제26권2호
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• pp.61-69
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• 2020

As post-harvest processes of onions are carried by a 20 kg-net package which results in high-cost and low-efficiency, especially, the insufficient drying and physical damage of onions after harvesting leads to a huge second loss in storage, we had developed a low-cost, high-efficiency post-harvest bulk handling machinery system by collecting onions on a farm using ton-bags, drying with forced air circulation, and sorting/packaging. The post-harvest bulk handling machinery system consisted of 6 devices, and this study designed an automatic feed hopper with a feeding rate control device, an inclined belt conveyor with a two-step chute, and an automatic pallet unloading device for feeding onions into the sorting/packing line. This study also analyzed the performance and control of the total system. The device had 1-ton handling capacity, but the operational condition was set to increase the capacity. The three-step filling method of pallet by the velocity control of the inclined belt conveyor was applied in the post-harvest bulk handling machinery system for the prevention of physical damage. If one worker was set to operate the total system, the time required to complete one palletized load was approximately 5 minutes and 5 seconds. The calculated daily handling capacity was approximately 94 tons, when the daily actual working time was 8 hours. When the developed system was applied to the managerial size of 2,000 ton, the processing cost per ton of the system was decreased by 19.5%, compared with the existing 20 kg-net package-based handling. The developed post-harvest bulk handling machinery system would be a good substitute for the rapid decline and aging of rural labor.

• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 2009년도 정기 학술대회
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• pp.561-566
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• 2009

The outrigger system with a core is widely used for lateral load resisting system of tall building. Recently, structural systems in tall building are adopted to eccentric core and offset outrigger or one-armed outrigger system by trends in planning buildings of irregular type. Therefore, the performance of outrigger system with eccentric core in tall building is evaluated by 50-stories examples which are analyzed for variables such as layout of core and outrigger, arm length of outrigger and depth of outrigger and belt wall.