• Journal of the Korea Institute of Building Construction
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• v.16 no.3
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• pp.271-278
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• 2016

In the case of South Korea, steel girder bridge (steel box or H-steel) and PSC (Pre-Stressed Concrete) girder bridge are the representative upper structures of railroad and road bridges. These structures account for 75% of the total bridge constructions and 80% of the total construction cost. Since the form work for concreting bridge slab is difficult, various construction methods developed and applied. However, several problems in those methods did not solve partially, including cost increase by material loss and rise of labor costs, quality deterioration by unskilled workers, increased construction time by complicated method, reduced productivity, safety accident by high place work, difficult transportation by big member, and rise of maintenance cost by material characteristic. Alternative method is needed to solve problems of as-is methods. Therefore, the purpose of this study is development of the purlin hanging system form for the girder bridge slab and its economic analysis. Through the findings of this study, it was verified that the purlin hanging system form is possible 60% reduction in cost and 80% reduction in time as comparison with conventional method.

• Korean Journal of Weed Science
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• v.32 no.1
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• pp.44-51
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• 2012

This study was conducted to predict the rice yield loss and to determine the economic threshold levels for direct-seeding flooded rice cultivation from competition to the most serious perennial weeds, Cyperus serotinus Rottb. and Echinochloa crus-galli L. The rice yield loss model of C. serotinus and E. crus-galli were predicted as Y = 560 kg/(1+0.001883x), $r^2$=0.933, and Y = 507 kg/(1+0.001734x), $r^2$=0.867, respectively. In comparison of the competitiveness represented by parameter ${\beta}$, it was 0.001883 in C. serotinus and 0.001734 in E. crus-galli, respectively. Economic thresholds calculated using Cousens' equation were negatively related with the competitiveness of weed. The economic thresholds of C. serotinus and E. crus-galli were 15.5 and 2.3 plants per $m^2$, respectively.

• Korean Journal of Weed Science
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• v.30 no.1
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• pp.43-49
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• 2010

This study was conducted to predict the rice yield loss and determine the economic threshold levels for water direct seeded rice from competition of the most serious weeds, Scirpus juncoides Roxb. (bulrush) and Echinochlor crusgalli L. (barnyardgrass) in Daegu of Korea. To predict crop yield as a function of weed density used a rectangular hyperbola, and determine their economic threshold levels used the equation developed by Cousens. The rice yield loss model of S. juncoides was predicted as y = 466 / (1+0.00188x), $R^2$ = 0.933 and that of E. crusgalli was y = 458 / (1+0.02402x), $R^2$ = 0.973. In comparison of the competitiveness represented by parameter ${\beta}$, it was 0.001884 in S. juncoides and 0.02402 in E. crusgalli. Economic threshold calculated using Cousens' equation was negatively related to the competitiveness of weed. So that the economic threshold of S. juncoides was 13.4 and that of E. crusgalli was 1.07 plants per $m^2$.

• Journal of Korea Port Economic Association
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• v.24 no.2
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• pp.43-69
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• 2008

The labor contract Law has been prepared as an important solution for social stability. After long disputes around the orientations of the law, On June 29, 2007, the new Chinese labor contract law is passed. This law reflects the changing labor relations because of economic reforms like restructuring of the state-owned enterprises and so on. This law contains more market-oriented clauses that are supplemented by corporatist scheme supported by trade unions than the first draft. This law emphasize labor's rights and interests to remove prior labor contract problem. So Chines government see this law as standard law to restructure social relationship and also require firms to corporate social responsibility. Therefore, implementation of the new Chinese labor contract law bring about increasing labor cost, infringement of autonomy for human resource management, rigidity of industrial relations. Under these situation, Korean shipping and port logistics companies need to introduce management system of minimized employment, prepare human resource management in response to long-term employment, maintain favor relationship with trade union, and set up counteiplan about risk of a labor dispute.

• The Korean Journal of Financial Management
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• v.23 no.2
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• pp.57-83
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• 2006

The purpose of this paper is to analyze the efficiency and productivity change and inefficiency cause of the korean non-life insurance companies of the before($1993{\sim}1996$) and after($1998{\sim}2004$) of IMF. we use DEA (Data Envelopment Analysis) model to measure company efficiency and MPI(Malmquist productivity indices) to measure company productivity change and Tobit regression to analyze inefficiency cause. we utilize ten non-life insurance companies in korea and the time-series data for eleven from 1993 to 2004 except 1997. The empirical results show the following findings. First, total cost efficiency shows that the after of IMF decrease of 3.7% over the before of IMF and MPI change indicates that the after of IMF increase 7.7% over the before IMF. Second, the results of Tobit regression to analysis the cause of inefficiency show that total cost efficiency is positively related invested assets, acquisition expenses ratio, collection expenses ratio and is negatively related solicitors ratio, personnel expenses ratio, land & buildings expenses ratio, loss ratio, net operating expenses ratio. Especially inefficiency of small-to-mid sized companies is main cause of total cost efficiency of non-life insurance companies in korea. Small-to-mid sized companies endeavored various aspects of business strategies.

• Proceedings of the KIEE Conference
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• 2008.09a
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• pp.15-17
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• 2008

본 논문은 현행 전력기술 관리법에 의하여 시행되고 있는 전력시설물공사 감리제도의 제도개선에 관한 연구로서 연구자의 현장 실무경험과 감리제도의 일반사항, 감리업자와 감리원에 대한 사항, 감리업자 선정 및 입찰에 관한 사항을 조사하여 전력시설물공사 감리제도의 현황과 실태분석 및 개선방안을 제시한 내용으로 연구결과는 다음과 같다. 첫째, 법적 및 제도적 측면에서 시급히 개선될 사항이다. 정부는 1995년 12월 법률 제5,132호로 전력기술관리법을 제정하여 전력시설물에 대한 공사감리 업무를 별도 분리 발주하여 전문성을 높이도록 전기 분야 전문기술자에 의해 수행토록 하는 것을 골자로 하는 책임 감리제도를 도입하여 오늘에 이르고 있다. 그러나 공사 준골단계에서 전기사업법 제98조 2항에 의해 위탁업무를 하고 있는 전기 안전공사가 사용전 검사를 함으로서 책임 감리제도의 도입 취지를 무색케 한 정도로 심각한 국면에 접어들었다. 전력기술관리법이 제정되어 13년이 지난 오늘까지도 책임 감리제도가 성공적으로 정착되지 못한 근본적인 문제는 사용전 검사를 전기 안전공사에서 대행하고 있다는 것이다. 물론 그동안의 많은 노력으로 어느 정도의 개선은 있었지만 근본적인 문제가 해결되지 않고서는 전력시설물공사의 감리기술의 전문화를 기대하기 어려운 실정이다. 따라서 책임 감리계도의 성공적인 정착을 위해서는 전기사업법 제98조 2항에 의한 위탁 업무인 사용전 감사 제도를 감리업자에게 돌려줌으로서 책임과 권한을 실질적으로 부여하고 감리회사 자체의 기술력 및 기술자 확보와 기술개발에 필요한 운영자금 및 투자 확대를 유도해 나가야 하며, 무엇보다도 확실한 법적 제도적 뒤받침이 선행되어야 한다. 둘째, 제도적 측면에서 일반건축물은 사업주가 전력시설물공사 감리업자를 임의선정 및 수의계약에 의해 감리업자를 지정하고 해당 공사기간동안 전기 감리원을 투입토록 되어 있어 인건비에 미치지 못하는 저가수주와 다음계약을 위해 어쩔 수 없이 사업주에게 종속되는 경우가 많으며, 이로 인해 감리수행에 혼란이 야기되고 책임소재의 불분명 책임 감리원의 조정 및 통제기능이 약화되는 부작용이 나타나고 있다. 전력시설물공사의 감리는 전력시설물의 안전사고, 비효율 및 부실소지 둥을 방지하기 위해서 필수적이고 발주자 감리업자 시공업체에게 모두 도움을 주는 업무이며, 일정규모이상의 건축물은 자발적인 참여로 유도할 수 있도록 적격심사제도(PQ심사)도입이 적극 필요한 실정이다. 셋째, 운용측면에서 공동주택의 주택법에 의한 전력시설물공사 감리는 사업승인권자가 사업수행능력 평가기준(PQ 심사)에 따라 감리업자를 지정하고 해당 공사기간 동안에 전기 감리원을 투입토록 되어 있으나 평가기준이 세대수에 따라 정해져 있어 효율적, 기술적 측면에 미치지 못하는 경우가 많다. 수준 높은 감리를 수행하려면 그에 맞는 적정한 감리원의 투입이 필수적이다. 넷째, 운용 및 제도적 측면에서 공공발주 건축물(공동주택 포함)의 전력시설물공사는 사업수행능력 평가기준(PQ 심사)에 따라 감리업자를 지정하고 해당 공사기간 동안에 전기 감리원을 투입토록 되어 있으나 발주자 소속직원의 감리수행 근거에 의해 자체 감리를 함으로서 시장경쟁 및 민간경제 활성화의 제약, 부정부패 및 비효율 등 사회에 전반적으로 악영향을 끼쳐 하루 빨리 민간 감리업자에게로의 개선이 시급한 실정이다.

• Journal of Korean Library and Information Science Society
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• v.46 no.3
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• pp.51-70
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• 2015

The objective of this study is to present the organization and management plan for the new main library in Busan metropolitan city. The characteristics of the Busan Library was defined as follows: stronghold library of Busan, policy and research library, and research hub for Busan studies. The five core functions of the library are to be library policy making, support and collaboration, preservation, information services, and administrative support. In order to fulfill the duties and the roles of the library, it has been suggested to maintain 4 departments along with 1 team including the department of library policy, the department of support and collaboration, the department of information services, the department of administrative support, and the preservation team. It has also been suggested to secure proper number of personnel including 43 staff members for the opening of the library, which consist of 10 administrative staff, 31 librarians and 2 computer specialists. The annual operating budget has been estimated to 4.33 billion won including labor cost (1.53 billion won), acquisitions (.735 billion won) and, other operating cost (2.13 billion won).

• KOREAN JOURNAL OF CROP SCIENCE
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• v.65 no.2
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• pp.151-155
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• 2020

This study was conducted to determine the effects of the selection of an appropriate sowing method in on ginseng growth, and the results are as follows. SAS (semi-automatic sower), commonly used by direct seeding farms, provides fast operation speed but results in high labor cost, while (Hooper Seeder Sowing) offers fast operation speed and high germination rate, but leads to increased laborer's fatigue. Daily working area per sower was 6,611 ㎡ for a motor type, and the operation time to sow 3,305 ㎡ was 15 hours for broadcast planting, and 8 hours for SAS. The germination rate of 1-year-old ginseng according to direct seeding was 69.1% for the treatment plot under broadcast planting, followed by 66.4% and 67.3% for manual sower and hoop sower, respectively, and the germination rate of SAS was the lowest at 64.2%. In addition, there were no differences in shoot and root growth of 1-year-old ginseng among the sowing methods. Therefore, the sowing method can be chosen depending on the economic size of ginseng farmers. That broadcast sowing (BS) is appropriate for small scale farmers, while motor-driven seeder sowing (MDS) for direct seeding is more suitable for large scale farmers.

• The Journal of the Korea Contents Association
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• v.17 no.2
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• pp.316-326
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• 2017

In this research, in order to analyze the efficiency of vocational education and training public services, we analyzed 27 projects conducted in Chungcheongnamdo province in 2014 using DEA. Also we compared the efficiency of 2014 projects with 2013 projects, and verified 3 representative DMU's inefficiency to suggest how to improve the efficiency. The DEA examined the efficiency using CCR model, BCC model and SE(CCR / BCC). As a result of this analysis, the total project costs and the number of projects were increased in 2014 from 2013, but it turned out that the number of inefficient projects were increased and the overall efficiency is decreased. Therefore, in order to improve efficiency, we proposed to allocate labor costs and direct project costs appropriately. In the case of large-scale projects, it was confirmed that reducing the scale of the project is important to increase the overall efficiency. Based on this research, we are presenting a research model that analyzes the efficiency of vocational education and training, and expanding the research area of performance management into the area of various public services.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.2
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• pp.219-227
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• 2018

The consortium for the HRD ability magnified program is part of the joint training program for SMEs in the strategic field and supports the infrastructure, training, personnel, and general operation expenses required for the joint training. The purpose of this study was to analyze the factors affecting the satisfaction of the education and training program, as perceived by the participants of the Consortium for the HRD Ability Magnified Program. The results of this study are as follows. Gender, trainer satisfaction, educational facilities and service satisfaction have a statistically significant effect on training program satisfaction. The impact on education and training satisfaction of gender, instructor satisfaction, educational (facilities) and service satisfaction was high and in that order. It was found that the male participants have a more positive effect on satisfaction of education and training than the female participants. Age, job group, and job title did not have a statistically significant effect on training program satisfaction. Based on the results of this study, the following suggestions are made. The capacity of the trainers should be strengthened. It is important to provide facilities that enable trainees to participate effectively in education and training and increase the transfer of education and training to the field. It is necessary to design and implement a curriculum that takes into consideration the female trainees' characteristics and situations. More effort is needed to improve the appropriateness of the education and training contents, education and training time, job relevance, and job contribution.