• Title/Summary/Keyword: Labor Value

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Weight Estimation of the Sea Cucumber (Stichopus japonicas) using Vision-based Volume Measurement

  • Lee, Donggil;Kim, Seonghoon;Park, Miseon;Yang, Yongsu
    • Journal of Electrical Engineering and Technology
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    • v.9 no.6
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    • pp.2154-2161
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    • 2014
  • Growth analysis and selection of sea cucumbers (Stichopus japonicas) is typically performed through length or weight measurements. However, because sea cucumbers continuously change shape depending on the external environment, weight measurement has been the preferred approach. Weight measurements require extensive time and labor, moreover it is often difficult to accurately weigh sea cucumbers because of their wet surface. The present study measured sea cucumber features, including the body length, width, and thickness, by using a vision system and regression analysis to generate $R^2$ values that were used to develop a weight estimation algorithm. The $R^2$ value between the actual volume and weight of the sea cucumbers was 0.999, which was relatively high. Evaluation of the performance of this algorithm using cross-validation showed that the root mean square error and worst-case prediction error were 1.434 g and ${\pm}5.879g$, respectively. In addition, the present study confirmed that the proposed weight estimation algorithm and single slide rail device for weight measurement can measure weights at approximately 4,500 sea cucumbers per hour.

A Study on the Main Clauses of a Shipbuilding Contract and the Relevant Measures on Disputable Issues (선박수출계약의 주요 조항 및 주요 분쟁사항에 대한 대처방안의 연구)

  • Kim, Sang-Man
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.54
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    • pp.3-44
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    • 2012
  • Shipbuilding industry is one of the most influential ones in Korea. As shipbuilding industry is labor-intensive, it contributes to enhancing both local economy and national economy. Shipbuilding industry has been downsizing since the end of 2008 due to global financial crisis caused by America's sub-prime mortgage and aggravated by European countries' fiscal deficit. As a large fund is required for a single normal shipbuilding contract, fund raising is one of the most important elements in shipbuilding contract. Shipbuilding contract, requires refund guarantee in order for a buyer to reimburse the progressive payment paid to a builder. The disputes under shipbuilding contracts are mostly settled by arbitration rather than by law suit. English laws and English courts have been preferred for the choice of law as well as for the choice of forum. Due to depreciation of the ship value since the end of 2008, a number of buyers are trying to cancel the contract by raising unjust claim under the contract. Once disputes occurs regarding shipbuilding contract, a large amount of loss is inevitable. In order to mitigate the disputes arising from the shipbuilding contract, careful caution is required in drafting a shipbuilding contract.

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Competitiveness in Exports of Pharmaceuticals to Developed Countries: A Comparative Policy Analysis on South Korea and India (선진국으로의 의약품 수출 경쟁력: 한국과 인도를 대상으로 한 정책비교분석 연구)

  • Yun, Su-Jin;Cho, Eun
    • YAKHAK HOEJI
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    • v.56 no.2
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    • pp.116-125
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    • 2012
  • Local pharmaceutical companies in Korea, which have grown focusing on domestic markets, have recently faced difficulties such as market saturation, price control policies and market-opening pressures by FTA. It seems to be an urgent issue for them to export pharmaceuticals to developed countries comprising the greater part of the global pharmaceutical market. Hence, this research was conducted to investigate and benchmark the strategies employed by India industry for the successful access to the global pharmaceutical markets. Drug policies as well as their influences on pharmaceutical market changes between India and Korea for the last 40 years have been searched and the differences have been comparatively analyzed. The pharmaceutical industry of India has the following strengths: low costs; experienced labor pool; excellent reverse-engineering skills; powerful IT; marketing capability; and established distribution network. After 2000, consolidations, M&A and alliances with domestic and multinational companies have been sharply increased in the industry of India. Indian companies unfolding both competition and cooperation with multinational corporations currently move up the value-added chain, and this enthusiastic strategy should be learned by local pharmaceutical companies.

Fatigue Life Prediction of Non-Load-Carrying Cruciform Welded Joint using Master S-N Curve based on Structural Stress Approach (구조응력기반 마스터 피로 선도를 이용한 하중 비전달형 십자 필렛 용접조인트의 피로예측)

  • Kwak, Si-Young
    • Journal of Welding and Joining
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    • v.33 no.6
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    • pp.49-54
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    • 2015
  • Welding process is of importance to assemble products or structures, but also the process is structural weakness due to stress concentration in welding joint. The fatigue design of welded joint requires time & labor consuming fatigue test because the fatigue life is various according to the depth of joint, joint type and load type etc. In fatigue design codes, they guide to classify welding joints with their shape( BS7608, IIW Documents) and provide fatigue assessment information. In terms of numerical method for fatigue analysis, it is also difficult to decide the stress peak in joint because of mesh sensitivity which means that stress value is varies with element type or size on stress concentration zone. Hot-spot method is used generally, but Battelle of United States proposed Master S-N Curve based on structural stresses converted by mechanical equilibrium theory. In this research, we extracted master S-N curve from Battelle's fatigue test DB including test data of various welding joints to apply on Non-Load-Carrying cruciform Joint. Comparing fatigue results between the case of using normal stress and case of structural stress cor the cruciform Joint, The suggested Battelle method showed successive results.

WTO GPA and BOT Contract (WTO 정부조달협정과 BOT 계약)

  • Chung, Jae-Ho;Woo, Yoon-Suk
    • International Commerce and Information Review
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    • v.8 no.3
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    • pp.193-206
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    • 2006
  • The United States demands that the Korean Government include in the WTO GPA the privately invested projects of the BOT contract. Controversy surrounding BOT contract will continue. As of result of opening up of private investment market including BOT contracts, inflow of foreign capital will be expanded, and it will provide an opportunity for rectifying any unreasonable policies or regulations. With active penetration of foreign companies, there is a possibility for deepening of competition in the private investment market, and if a foreign administrative company is selected, possibility of assigning high value works such as design to foreign companies leaving labor intensive work such as construction to domestic companies exists, and also, difficulties resulting from agreement between the employer and the foreign administrative company exists. Large-scale construction companies must put forth their efficiency and creativity, and through revolutionary constructions by private sectors, reduction in construction cost should be made possible, and must also increase efficiency in maintenance, repair, and management of the facility. On the other hand, in order for Korean construction companies of BOT businesses to be able to enter the foreign BOT industry, the government needs to conduct studies in information and policies of various nations.

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A Study on the Forecasting of Employment Demand in Kenya Logistics Industry

  • Shin, Yong-John;Kim, Hyun-Duk;Lee, Sung-Yhun;Han, Hee-Jung;Pai, Hoo-Seok
    • Journal of Navigation and Port Research
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    • v.39 no.2
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    • pp.115-123
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    • 2015
  • This study focused on the alternative to estimate the demand of employment in Kenya logistics. First of all, it investigated the importance and necessity of search about the present circumstance of the country's industry. Next, it reviewed respectively the concept and limitation of several previous models for employment, including Bureau of Labor Statistics, USA; ROA, Netherlands; IER (Institute for Employment Research), UK; and IAB, Germany. In regard to the demand forecasting of employers in logistics, it could anticipate more realistically the future demand by the time-lag approach. According to the findings, if value of output record 733,080 KSH million in 2015 and 970,640 in 2020, compared to 655,222 in 2013, demand on wage employment in logistics industry would be reached up to 95,860 in 2015 and 104,329 in 2020, compared to about 89,600 in 2012. To conclude, this study showed the more rational numbers about the demand forecasting of employment than the previous researches and displayed the systematic approach to estimate industry manpower in logistics.

Current Status and Perspectives for the 21st Century of Rural Living Improvement Program in Japan (일본의 생활개선사업 현황과 21세기 전망)

  • Lee, Geum-Ok
    • Journal of Agricultural Extension & Community Development
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    • v.11 no.1
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    • pp.37-52
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    • 2004
  • The rural living improvement in Japan operates in considerations of socio-eoonomic circumstances of rural community as in Korea. After 1945 the program emphasized the improvement of living conditions such as poverty alienation improvement of house and toilet nutrition after war, From 1955, health programs including better cooking and nutrition, house modification and improved living conditions corresponding to the goal of the developed country were carried out. In 1965. the goal of the rural home economics was focused on the harmonized production and living, improvement of the levels of rural living, health and building rural community. From 1975, the goals of the program were to organize the farming in the better ways and improvement of rural women's role. In 1985, making agreeable living conditions was emphasized under the goal of vital rural society. From the period of Heysey(1989${\sim}$), for better living of rural people the government is emphasizing the programs including farm labor management, utilization of farm products, farm management and rural environments. Recognizing the important influencing resources of agents in extension services, on the job and education was implemented step by step from basic to planning to upgrade competencies. The government is trying to construct better with infrastructures, encouraging direct selling the value-added processed food from local farm products with rural people's real name and other countryside resources. Major programs in the 21st centuries are building better rural society with men and women together and considering elders as well as new farmers.

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Fractal Manufacturing System (FrMS) based on Autonomous and Intelligent Resource Model (AIR-model) (자율적이고 지능적인 리소스 모델에 기반한 프랙탈 생산시스템)

  • Sin Mun-Su;Jeong Mu-Yeong
    • Proceedings of the Korean Operations and Management Science Society Conference
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    • 2006.05a
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    • pp.348-353
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    • 2006
  • Autonomous and intelligent resource model (AIR-model) defines a building-block of complex systems to pursue value creation by means of diverse resources, referred to as an AIR-unit, and presents a collaboration model with the AIR-units. An AIR-unit represents a piece of resources, such as machines, labor, raw materials, and other assets, considered individually by a complex system as means to accomplish given tasks. It is defined with its own service capability and a goal, and pursues achieving the goal by means of the capability. Moreover, an Air-unit is equipped with autonomy and intelligence, whereby it makes a decision on its course of action on its own initiative. Air-units collaborate on system operations with each other through goal-oriented negotiations. In this research, distinctive features of the AIR-model are addressed and described in detail. Principal components of the AIR-model are also designed via object-oriented modeling techniques. A prototype system based on the AIR-model is finally presented as an embodiment tool of a fractal manufacturing system (FrMS).

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South Korea as a Global Sourcing Site for Textile and Apparel Produce (글로벌 소싱 기지로서의 한국 섬유.의류산업의 현황)

  • 박혜정;이영주;임숙자
    • Journal of the Korean Society of Clothing and Textiles
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    • v.27 no.7
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    • pp.819-830
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    • 2003
  • Korea is facing great threat from other countries as a major global sourcing site for textile and apparel products. The threat has been augmented by changes in external environment such as advents of Trading Blocs and Free Trade Area(FTA) as well as internal environment such as hikes in labor cost and lack of flexibility in accommodating international buyers' needs. This study analyzed international buyers' sourcing activities in Korea for the purpose of developing strategies to enhance competitiveness of the Korean textile and apparel industries in the global market. The data used in this study were gathered by surveying 52 non-Korean textile and apparel product buyers with cooperation of the Korea Federation of Textile Industries (KOFOTI). The data were analyzed by mean, frequency, Pearson correlation coefficient, and x$^2$ analysis. The results indicated that Korea is still attractive to many international buyers especially to those who have been engaged in global sourcing for longer periods of time with bigger purchasing budgets. However, in order to expand and solidify their customer bases, Korean companies should focus more on developing competitively priced value added products a step ahead of their foreign competitors, diversifying their marketing channels including internet.

A Deformation Behavior Analysis of Dynamic Bulging in the Mini-Mill Continuous Casting System (Mini-Mill 연속주고기의 동적 Bulging해석 Model(I) -주편의 변형거동을 중심으로-)

  • 한성욱;정영진;강충길
    • Proceedings of the Korean Society for Technology of Plasticity Conference
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    • 1998.03a
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    • pp.138-143
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    • 1998
  • The continuous casting process has been adopted increasingly in recent years to save both energy and labor. It has experienced a rapid development in the production of semi-finished steel products, replacing the conventional route of ingot casting plus rolling. To achieve this good merit, however, more studies about a heat transfer mechanism between roll and slab are needed. So this paper shows the results of the deformation behavior of steel cast slabs, which are about the solidification and heat transfer. This study is used to prevent internal cracks of a slab in a bending and unbending zone. The value of moving strand shell bulging between two supporting rollers under ferrostatic pressure and slab-self weight has been computed in terms of creep and elastic-plasticity. The high strand distributions in solidified shell undergoes a series of bulging are calculated with boundary condition a very closed to continuous steel cast slabs productions.

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