• Advances in Computational Design
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• 제8권2호
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• pp.179-190
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• 2023

In this paper, building information modelling (BIM) associated to the principle of significant items emerged at quantities and costs in the optimization of productivity related to the rehabilitation of the building where proposed and discussed. A quantitative and qualitative study related to the field of application based on some parameters such as pathology diagnosis, projects documents and bills of quantities were used for model development at the preliminary stage of this work. The study identified 14 quantities significant items specified to cost value based on the use of the 80/20 Pareto rule, through the integration of building information modelling (BIM) in the optimisation of labour productivity for rehabilitation of buildings. The results of this study reveal the reliability and the improvement of labour productivity using building information modelling process integrating quantities and cost significant items.

• 한국시뮬레이션학회논문지
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• 제16권4호
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• pp.67-75
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• 2007

RFID(Radio Frequency IDentification)가 국방, 물류/유통, 도서 관리 등의 분야에서 바코드를 대체하는 대안으로 각광을 받고 있으나, 적용 범위가 제품 생산이나 판매 유통 관리 등의 분야로 제한되어 있는 것이 사실이다. 본 논문에서는RFID 기술을 공정관리에 적용해 본 후, 그 효과를 분석하였다. 또한 유통단계뿐 아니라 제품의 이력관리 및 품질관리에 RFID의 적용 가능성을 타진하기 위해, 제조 및 포장공정에 활용하는 방안을 제안하였다. RFID 적용 효과를 검증하기 위해 실제 제조업체를 대상으로 현재 바코드를 부착하는 공정을 RFID로 변경하였을 때 공정 개선 효과를 산출하였으며, 연구 결과 RFID 도입에 소모되는 초기 투자 비용을 상쇄할 수 있는 비용절감 효과가 있음을 확인하였다. 이로써 높은 초기 비용으로 인해 바코드에서 RFID로의 교체를 망설이는 제조업체들의 의사결정에 기여할 수 있을 것으로 기대된다.

• 한국잠사곤충학회지
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• 제10권
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• pp.99-105
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• 1969

1968년도 우리나라 제사공장경영실태조사분석결과 다음과 같은 성적을 얻었다. 1. 공장당 1 일평균구견량은 약 10,800kg, 선견량은 105kg/인이였으며 건견량은 8683kg/일이며 42%가 저온건견되고 있다. 2. 자견기의 길이(m)별 자견능력은 50g/min이나 대인 자견능력은 시설규모가 큰 공장에서 적었다. 3. 대당 월간생사생산량은 6,000kg내외이고 대규모공장에서는 대당 월간생산량이 적은 경향이였다. 4. 규모별 생사 kg당 인건비는 소규모공장에서 제일 높았고 200~300대공장에서 제일 적었다. 5. 공장별로 분석한 6가지 요인중 다조조사인 경우 조사공정의 인건비가 제일 높았으므로 생사생산비의 절감은 자동화에 의한 조사인건비를 감소시켜야 할 것이다. 6. 제시된 6가지 요인이 차지하는 인건비는 약 46%가 상관하고 나머지 54%는 다른 요인이 생산비를 영향하고 있는 것으로 추정된다.

• 수산경영론집
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• 제7권1호
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• pp.27-41
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• 1976

The results analyzed of the actual state of the stow net fisheries based on the cost expended in 1975 areas follows; The total cost of this fisheries will be 1, 672, 238 won; the production cost, 1, 588, 060 won (95%) ; the material cost in proportion to total cost (100%)408, 480won (24.4%);the labour cost, 1, 006, 480 won (60.2%) ; the expenses, 173, 100won(10.4%)and the commission and the interest payment, 84, 178won(5%). As above the commission and the interest payment doesn't need to be paid much, but only production cost should be paid in case of small scale inshore fisheries. The cost per unit of caches (per Kg) becomes 12 won, the ratio cost of sales (83.4%), the ratio of profit, 16.%. According to the adove, in case of the powered vessel; it shows a tendency of spending too much expenses owing to excessive payment of oil. And in case of nonpowered vessels, it shows a tendency of spending less expenses but still get much gains, due to the fact that the commission and the interest payment are less, and none is paid for fuel procurement.

• Human Ecology Research
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• 제53권1호
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• pp.49-66
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• 2015

This study analyzes the effects of women's labour force participation and work-family reconciliation support on life-cycle fertility in Korea. The analysis is based on the longitudinal data from Korean Labour and Income Panel Study (KLIPS), which include the available information on life-cycle fertility and employment history. Employing a dynamic model of fertility, we estimated the life-cycle fertility of all the 15-49 years old women considered in this study by using a duration model. The major results of this study were as follows: First, women's labour force participation had a negative effect on the first birth, second birth, and all births (transition to births starting at different parities). Women's employment tended to lengthen the interval between births. Second, the availability of maternal leave had a positive effect on the first birth and all births for working women. Providing maternal leave to working women decreased the opportunity cost of childbearing and in turn, reduced the interbirth interval of women. However, the availability of parental leave had no significant effect on the births of working women. Third, the financial support for childcare had a positive effect on the first birth and all births. The economic support for childcare led to the reduction in the interbirth interval of women by increasing the probability of births. The use of a childcare center for the first child, which substitutes for the time that women needed to take care of their children, classified as time-intensive consumption goods, did not have any effect on the second birth. Fourth, the part-time employment of women had a positive effect on the second birth. A flexible working time schedule tended to decrease the interval between the first and the second births.

• 품질경영학회지
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• 제42권2호
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• pp.145-152
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• 2014

Purpose: As the number of people directly employed in making things declines, the cost of labour as a proportion of the cost of production and delivery will diminish too. This will make to move the focus of quality management because new manufacturing techniques make it cheaper and faster to respond to changing local tastes Methods: This discussion is induced by understanding that change the point of view of quality. Results: Mark-processing method using a mold of 3D-printer is different from traditional manufacturing methods. Design, rapid prototyping of products produced by the right way, many changes in many industries will be created. Therefore, the design will be more emphasis on the importance of quality. Conclusion: As manufacturing goes digital, a Quality great change is now gathering pace. It will allow things to be made economically in much smaller numbers, more flexibly and with a much lower input of labour, thanks to new materials, completely new processes such as 3D printing. So we must change the vantage point of quality, from process to Design, R&D, and Delivery.

• 한국잡초학회지
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• 제12권3호
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• pp.292-308
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• 1992

Recently agricultural situations are being placed in unfavourable socio-economic environment as followed by rapid decrease of rural population, poor labor quality and high wages of rural society due to high speedy industrialization of social structure in Korea. In addition to those circumstances, under the UR system to be expected in the early future, free trade of agricultural products will be faced inevitably in Korea. Practically prices of rice as a principle food in this country are expensive about three times compared to those of foreign rice markets, and so how to increase the international competitiveness and food supplies are important problems to be solved rapidly. Accordingly an urgent goal is reduction of agricultural production cost by the improvement of labour productivity as a labour saving and cost down cultivation methods as the direct seeding cultivation in rice. But there are many problems in the direct seeded rice cultivation. The important things to be improved in that cultivation are development of rice varieties with lodging tolerance, effective seedling stand, weed control, irrigation management and fertilizing and so on. Moreover agricultural basis as irrigation facilities, land consolidation and farm machineries must be improved for the stability of rice cultivation in the future.

• 한국컴퓨터정보학회논문지
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• 제21권4호
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• pp.89-96
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• 2016

In this paper, we study the relationship between vacancy duration and information items of a job posting by using generalized linear models and a decision tree analysis w.r.t. the three factors such as company characteristics, employment conditions, and constraints. The results indicate that the employment conditions rather than company characteristics are more influential to the vacancy duration. These effects are presumed to be based on the complex relations between the decisions of the employers and the job seekers. And in this paper we suggest the need to provide personalized and profiled labor market information tailored for a quick decision to job seekers and employers. Policy implication is that since employer's decision affects the vacation duration, employers may had better to provide a comprehensive labour market information including supply and demand of the required skills in order to reduce the time for judgment on the cost-effectiveness.

• Asian-Australasian Journal of Animal Sciences
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• 제7권1호
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• pp.49-55
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• 1994

This study was conducted to compare the of rearing native and cross-bred dairy cows and returns received from them. For this purpose, 144 cows of 132 household from 24 villages were randomly selected. of them, 96 were native cows and 48 were cross-bred cows. The study revealed that among the structure of cost components, labour charge occupied the major share in the total cost of milk production per litre. The total cost of rearing native and cross-bred cows was Tk. 14,155 and Tk. 19,854 per annum, respectively. The average net cost of milk production per litre was Tk. 14.12 for native cows and Tk. 0.52 and for cross-bred cows were Taka 3.40. The benefit-cost ratio of milk per litre was higher (1:1.33) in cross-bred cows than native ones (1:1.04). The study further showed that in comparing with bulk line cost, the price of milk per litre received by the farmers was higher in cross-bred cows than native cows. Therefore, the study recommends dairying with cross-bred cows as encouraging and viable commercial enterprise in Banfladesh.

• 한국인구학
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• 제33권2호
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• pp.113-136
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• 2010

초저출산에 관한 논의는 장래 인구추이라는 점에서 중요한 의미를 지니고 있으며, 초저출산 추세에 대해서는 다음과 같은 질문이 가능하다. 첫째, 초저출산 경향은 앞으로도 계속될 것인가 혹은 가까운 장래에 사라질 일시적인 현상인가 하는 질문이다. 둘째, 현재의 초저출산은 가장 낮은 수준에 이르렀는지 혹은 앞으로도 더욱 감소할 것인지에 관한 질문이다. 셋째, 초저출산 현상은 세계적으로 널리 확산되고 있는지 혹은 남부 및 동부 유럽과 같은 지역에 한정되어 나타나고 있는지에 대한 질문이다. 이러한 질문들과 연계된 이슈들은 장래의 인구학적 연구에 중요한 실마리를 제공할 것으로 예상된다. 본 연구결과를 근거로 앞에서 제기한 질문들에 대한 답은 다음과 같다. 첫째, 한국사회에서 나타나고 있는 초저출산 추세는 일시적인 추세가 아니라 당분간 계속될 것으로 전망된다. 이는 여성의 경제활동 참여가 지속적으로 증가할 가능성이 높다는 점에서 혼인연령과 출산력에 직 간접적으로 영향을 미칠 것으로 전망되기 때문이다. 노동시장의 불안정성이 쉽게 해소되지 않을 것이라는 예상 역시 초저출산이 계속될 것이라는 전망을 뒷받침한다. 둘째, 초저출산의 수준에 관한 것으로 앞으로 출산수준이 더 낮아질 수 있는 가능성이 높다. 최근 초저출산을 가져온 다양한 요인들이 개선되지 않거나 초저출산 추이를 막기 위한 정책이 미흡하면 현재보다 더 낮은 출산 수준이 나타날 가능성은 높기 때문이다. 셋째, 유럽의 경우와 다르게 한국, 타이완, 홍콩 등 동아시아 국가에서는 초저출산이 지속되고 있는 이유는 아마도 자녀양육 및 교육에 대한 부담이 너무 크기 때문인 것으로 보인다. 높은 교육비 부담과 육아부담을 줄이는 정책적 고려 없이 출산율이 회복되기를 기대하는 것은 난망 하다는 지적에 주목해야 한다.