• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2004년도 제5회 정기학술발표대회 논문집
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• pp.353-357
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• 2004

현재 우리나라의 철골공사에서 생산성은 철골부재의 중량으로 되어있다. 그러나 철골공사의 생산성은 부재의 중량보다는 피스 수에 더 많은 영향을 받는다. 이에 따라 새로운 철골공사의 생산지수가 필요하다. 본 연구에서는 우리나라 철골공사의 문제점을 분석하고 문제점을 개선할 수 있는 새로운 생산지수를 개발하고자 한다. 이를 통해 전 과정을 통일된 수치화하고 이 수치를 관리함에 따라 복잡한 관리를 보다 효과적으로 통합관리 할 수 있도록 한다.

• 국제학술발표논문집
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• The 9th International Conference on Construction Engineering and Project Management
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• pp.500-507
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• 2022

COVID-19 pandemic forces college education to be rapidly switched from face-to-face education into remote education. Two inconsistent findings exist in previous study about remote learning. First, studies before COVID-19 pandemic found remote learning is an effective method, which provided students with higher achievement and improved their work-life balance. However, studies showed remote learning during COVID-19 pandemic is not as effective as expected because of technical issues, lack of motivations and even mental health issues. Second, findings from studies about remote learning impacts on workload and productivity during COVID-19 are also inconsistent. Therefore, this study aims to quantitatively measure college students' workload and productivity during COVID-19 of different types of tasks to provide a comprehensive and latest evaluation on remote learning. The findings of this study show remote learning slightly increases college students' total listening and speaking tasks workload, total reading and writing tasks workload. Furthermore, phone call, in-person meeting, online meeting and email workload increase significantly in remote learning. However, productivity for both listening and speaking, reading and writing tasks decreases after remote learning but no significant changes of productivity are found.

• 국제학술발표논문집
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• The 6th International Conference on Construction Engineering and Project Management
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• pp.639-640
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• 2015

Traditional construction planning based on historical data and heuristic adjustment can no longer incorporate all the operational details and guarantee the expected performance. The variation between the expected and the actual production leads to cost overruns or delay. Although predicting reliable productivity on construction site is getting more important, the difficulty of this increases. In this regard, this paper suggested to develop BIM-integrated simulation framework. This framework could predict productivity dynamics by considering factors affecting on construction productivity at operational phase. We developed the following processes; 1) enabling a BIM model to produce input data for simulation; 2) developing the construction operation simulation; 3) running simulation using BIM data and obtaining productivity results. The BIM-integrated simulation framework was tested with structural steel erection model because steel erection work is one of the most critical process influencing on the whole construction budget and duration. We could improve to predict more dynamic productivity from this framework, and this reliable productivity helps construction managers to optimize resource allocation, increase schedule reliability, save storage cost, and reduce material loss.

• 한국유기농업학회지
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• 제30권4호
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• pp.499-516
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• 2022

Blueberry producers' management is failing as a result of the price decline caused by an increase in blueberry imports and the accompanying deterioration in management. Consequently, an endeavor was undertaken to verify the measurement and impact from the standpoint of efficiency and productivity of blueberry management, and to offer an indication of management improvement through analysis. Using the Rural Development Administration's income survey data, the data for twenty-four blueberry farms was analyzed. First, the management effectiveness of blueberry cultivators was evaluated. Using the CCR model (0.7297) and the BCC model (08148), the efficiency of a farm was examined. When the efficiency is one, CCR is ten and BCC is fifteen, and in overall, it was found to be ineffective, the efficiency declined from 2018 to 2019, but climbed again in 2020, according to the annual analysis. The MPI index was then used to examine productivity. T2's MPI index was 1.3338, whereas T3's MPI index was 0.8896, demonstrating a considerable decline in TC. This indicates that technological progress is not being accomplished, necessitating the need for countermeasures. In order to improve the management efficiency of blueberry producers, it is necessary to reduce costs and improve receivable prices through producer organization, and to actively introduce new technologies.

• 대한건축학회논문집:구조계
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• 제35권12호
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• pp.173-180
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• 2019

Construction work is a labor-intensive industry, which is required systematic production activities using materials, manpower, and equipment. Among them, manpower resources play a very important role in achieving efficiently production in the organization. Construction work is highly dependent on construction craft workers, and the level of proficiency can be directly related to the construction productivity and quality. However, a rapidly aging construction craft workers in Korea, is being replaced by a foreign construction craft workers because of advoidance of new laborers in the construction site. In the future, if the continuous development and management of construction manpower is not made properly, it may be lead to adverse effects such as setbacks in production, delayed completion, faulty construction, industrial disasters, and decreased productivity in construction site. In this study, it was proposed four important factors for work capacity management of construction craft workers. These were ensuring of physical strength through the health management of construction craft workers, securing of proficiency through career management, ensuring of productivity through work capacity and establing of informatization through work capacity management. By introducing a systematic system, it is possible to improve construction craft workers' professionalism, enhancing the level of welfare, reflecting the realities of labor costs, increasing the quantitative and qualitative levels of construction craft workers, Futhermore it was demanded the continued interest and policy support for the realization of effective management of construction craft workers.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2010년도 춘계 학술논문 발표대회 1부
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• pp.191-194
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• 2010

Construction companies are now trying a variety of cost-cutting strategies in the midst of recent slump of construction market. Notably, contract workers and local hires are accounting for increasing portion of management manpower as a part of their cost-reduction drive. However, construction site manpower researches to date have focused primarily on productivity analysis of site laborers, with little attention to the productivity of site management resources. This study aims to analyze the staffing status of office building construction site management manpower in reference to project size. Conclusions herein will provide basic inputs for subsequent attempts to build a model to enable efficient staffing of construction site management manpower.

• 한국건설관리학회논문집
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• 제9권4호
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• pp.92-100
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• 2008

최근 의사결정권자가 유사프로젝트 추진 시 발생하는 의사결정과정 상에서 신뢰성 있는 자료에 근거하여 의사결정을 할 수 있는 생산성 예측시스템 구축에 대한 연구가 진행 중에 있으나, 생산성 예측시스템에서 독립변수로 작용하는 생산성 영향요인에 대한 연구는 대부분이 생산성 분석을 위한 생산성 영향요인으로 생산성 예측에 대한고려 없이 생산성 영향요인을 분류하고 있다. 또한 예측에 대한 고려 없이 도출된 생산성 영향요인을 이용하여 생산성을 예측하면, 유의하지 못한 생산성 영향요인이 예측 모델의 독립변수로 사용되어 생산성 예측 값의 신뢰도와 적합성이 낮아지는 결과를 갖게 된다. 따라서 본 연구에서는 생산성 값에 영향을 미치는 주된 인자인 생산성 영향요인에 대한 상관분석을 이용한 생산성 예측을 위한 생산성 영향요인 선정 프로세스를 제안하였고, 제안된 프로세스는 영향요인 선정 과정을 체계적으로 정리하여 생산성예측을 위한 생산성 영향요인 선정에 효율적인 방법으로 사용할 수 있을 것으로 기대된다.

• 보건의료산업학회지
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• 제10권2호
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• pp.71-82
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• 2016

Objectives : This study purposed to analyze the productivity trends of regional health care resource uses in South Korea. Methods : Data was provided from the regional health care statistics by the National Health Insurance Service(NHIS) and collected from 2011 to 2014 at the 226 administrative regions such as Si(city in Korean), Gun(county in Korean), Gu(district in Korean). Productivity trend was analyzed with Malmquist Productivity Index(MPI). Input variables were the number of medical personnels, facilities, and major medical equipments. Output variables were the number of inpatient and outpatients in model A, and the amount of inpatient and outpatient reimbursements in model B. Results : In model A, the productivity of 62 regions were increased but it was decreased in 164 regions. In model B, the productivity of 123 regions were increased but it was decreased in 123 regions. Conclusions : If these trends were continued, there will be problems with the efficiency of national regional healthcare resource utilization. Health policy makers will require to focus in solving this phenomenon.

• 산경연구논집
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• 제4권1호
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• pp.5-10
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• 2013

Purpose - Labor productivity is extremely important to the profitability and competitive advantage of organizations that provide services to customers, such as banks. This study investigates the factors driving labor productivity in Iran's Melli Bank. Research design, data, methodology - Five managerial, psychosocial, cultural, and individual factors are identified and their relative importance for labor productivity prioritized using AHP. The required data are then collected through a questionnaire designed for a pairwise comparison of the driving factors of labor productivity and their subcategories. Results - The study outcomes reveal that the managerial and individual factors are the most important. Specifically, the most important factors in increasing labor productivity in the branches of Melli Bank are having a competent supervisor, promotion opportunities, fair working conditions, conscientiousness, the right tools, and a correspondence between skills and work. Conclusions - Implementing AHP using Expert Choice software revealed that, among the driving factors of labor productivity (i.e., managerial, psychosocial, cultural, environmental, and personal), managerial factors were considered the most important by the respondents.

• 보건의료산업학회지
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• 제5권1호
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• pp.77-85
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• 2011

The study intends to conduct an analysis of relations between efficiency of investment to human resources and the operating margin in hospitals. The analyzed results are as follows: First, it is found out that an index related to labor productivity(the monthly value added per bed, the value added ratio to gross revenue), and an index for efficiency of human resources(value added to personnel expenses), do not have a significant difference by years. Second, labor productivity, indicating the efficiency of human resources, does not have a significant difference between regions and between hospital types. But there is a significant difference according to types of establishment: private hospitals have higher labor productivity(efficiency of human resources) than corporate hospitals. The hospital size is small have significantly higher labor productivity. As a result of a follow-up check, it is found out that there is separation between a group with more than 200 beds and a group with less than 200 beds. Third, at the relations between the indices related to value-added productivity and the operating margin that the higher the value added ratio to gross revenue and the higher labor productivity, the higher the operating margin. Especially, labor productivity(value added to personnel expenses), an index for the efficiency of human resources, out of all the indices related value added productivity, has the most significant influence on the operating margin.