• 대한가정학회지
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• 제32권2호
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• pp.49-60
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• 1994

Recently there has been new work schedule developed in some companies which means starting the work at 7 and finishing at 4 This article studied on the effects of new work schedule on the time allocation by married couples. It was compared with the time spent by married couples in group of old work schedule. And it studied whether the change of work schedule affects the time allocation and satisfaction of couples. This survey was conducted from November to December 1993 One hundred and twenty none couples were considered to be valid sample for this study. The findings of this study are as follows: 1. Couples with new work schedule did perceive changes in the time allocation. 2. The total time for transportation and market work of husbands was decreased and leisure time showed a increase when there is new work schedule. 3. Husbands with new work schedule perceived that they spent more time in the household work leisure sharing with their children and sharing with spouses than husbands with old work schedule. 4. Couples with new work schedule showed higher marital satisfaction and family life satisfaction than couples with old work schedule.

• Safety and Health at Work
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• 제12권2호
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• pp.255-260
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• 2021

Background: A well-designed shift schedule has been reported to have a positive effect on improving health problems associated with shift work. This study aimed to identify compliance with the 17 recommendations on work schedule (WSRs) for shift nurses and related factors. Methods: The descriptive study was conducted with 182 nurses who worked in three shifts for more than 1 year at superior general and general hospitals in three regions. Data were collected with selfadministered questionnaire and 13-week work schedule tables, and analyzed with both person- and cycle-based compliance. Results: Person-based compliance was 11.77 among 17 items in total. However, no one completely complied with WSRs of "no work on weekends" and which showed the lowest cycle-based compliance (22.3%). Compliance with some WSRs was related to hospital type, proportion of nurses in school and having standards on work schedule at institutional level. Conclusion: Compliance with WSRs of shift nurses in Korea is still unsatisfactory, and one day off after night shift and work on weekend are quite common. Hospitals should keep the standards on work schedule, monitor compliance with standards, and try to introduce modified shift systems to improve the current problems.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2010년도 춘계 학술논문 발표대회 1부
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• pp.131-133
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• 2010

As linear scheduling method has been used since 1929, Empire State Building linear schedule, it is being applied in various fields such as construction and manufacturing. When addressing concurrent critical path occurring on linear schedule of construction, the empirical researches stress the resource management which should be applied for optimizing work flow, flexible work productivity and continuos resource allocation. However, work relationships has been usually overlooked for making the linear schedule from existing network schedule. Therefore, this research analyze the previous researches related to linear scheduling model and then propose the method that can be applied for adopting the relationships of network schedule to the linear schedule.

• 한국건축시공학회지
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• 제10권4호
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• pp.31-39
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• 2010

선형 공정계획 방법은 1929년 엠파이어 스테이트 빌딩에서 그래픽한 용도로 사용되면서 현재는 다양한 작업 공간, 현장 작업과 조립 작업에 적용되고 있다. 선형 공정계획 상에 동시적인 크리티칼 패스가 발생하면 자원 관리는 작업흐름의 최적화 문제로 연결되어 유연한 작업생산성과 지속적인 자원의 할당을 하기 위해 적용되고 있다. 그러나 선형 공정계획 모델 연구에서 간과하고 있는 선형 공정계획 모델의 작업 관계성을 고려하는 것이 필요하다. 이에 본 연구는 선형 공정계획 모델에 관한 기존 연구를 분석하여 네트워크 공정표의 관계성을 선형 공정표에 적용할 수 있는 방법을 제시한다. 네트워크 공정표를 선형공정표로 변환 시에 발생하는 작업의 관계성을 고찰하고 건축물의 물리적 층수 변화와 같이 작업공간의 변화에 따라 선형 공정표에 반영되어야 할 선형 공정표상의 액티비티의 이동 문제를 고찰하여 네트워크 공정표를 선형 공정표로 호환할 수 있는 시스템 개발을 위한 기초연구를 제공하는 것이 본 연구의 목적이다.

• 한국건설관리학회논문집
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• 제18권5호
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• pp.32-40
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• 2017

최근 국내 건설산업은 성장의 시기를 지나 침체기로 접어들고 있으며 경쟁력 향상을 위해 건설사업관리 특히 공정관리의 중요성이 더욱 부각되고 있다. 이러한 상황에 토목 건설업계는 생존을 위한 다양한 공사관리 방안의 연구 및 현장 적용에 부단한 노력을 하고 있으며 많은 성과를 이루고 있으나 아직도 체계적이며 효율적이고 현장 활용도가 높은 공정관리 기법의 정착은 이루어지지 못하고 있다. 이에 본 연구에서는 공사관리의 핵심인 공정관리의 활용에 대해 설문조사방식으로 현장기술자들의 인식 및 이해의 정도를 파악하며 현장에서 실제 사용하고 있는 공정표의 작성수준과 활용 현황을 파악을 위해 방문 조사하여 현재 국내 공정관리 현주소 및 문제점을 파악하였다. 아울러, 기존문헌 및 연구논문의 고찰, 현장에의 적용성을 바탕으로 현장 활용성이 높은 WBS 분류에서부터 work pacckage 도출과 Activty도출, 공정표 작성 및 관리방안을 제안하였다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2023년도 봄 학술논문 발표대회
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• pp.161-162
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• 2023

The construction inspection is conducted by the contractor or construction supervisor after a certain stage of work has been completed. As the consturction inspection task is dependant on construction schedule, however, it is difficult to plan inspection task systematically, resulting in increased supervision costs, delays in construction, and disputes. Therefore, this study aims to integrate inspection work with schedule management to systematize inspection procedures. Firstly, the inspection work is defined based on the construction supervision checklist. Then its relationship with the construction process, required time, and resources for inspection tasks are defined in construction schedule. Lastly, a process management program is used to assess the effects of applying the inspection work and examine changes in the overall construction period and process management. The proposed method in this study can support to plan construction inspection more systematically and to improve the effectiveness of construction quality management.

• 경영과학
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• 제20권2호
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• pp.33-43
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• 2003

In this paper we applied dynamic programming to determining work schedule type. In dynamic programming formulation, each day during a planning horizon represents a stage for which a decision is made. The alternatives are given by work schedule types that combine regular time, overtime, additional shift, and so on. In this case, their associated return function is labor cost. The state is defined as the amount of work time allocated to stage 1, stage 2,…, and current stage. A case study for a real manufacturing company was performed to apply dynamic programming to scheduling daily work hours during a week. The case study showed that total cost of our solution derived from dynamic programming decreased by about 6％ as compared with the solution obtained from the previous method.

• 한국건축시공학회지
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• 제18권4호
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• pp.385-394
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• 2018

오피스 건축물의 리모델링 사업에서, 신축과는 다른 리모델링 사업의 다양한 리스크로 인해 공기가 지연되는 사례가 빈번하게 보고되고 있다. 이에 본 연구에서는 리모델링 프로젝트의 리스크 요인들과 리모델링 공사의 작업별 공기지연 발생가능성의 관계를 분석하고자 수행되었다. 리모델링 사업의 경험이 있는 29명의 전문가 면담결과의 과학적 통계적 분석을 통해, 리모델링 사업의 리스크 요인과 그로 인한 작업별 공기지연 가능성을 크게 3가지 측면에서 분석하였다. 즉, (i) 리모델링 공사의 작업별 공기지연 가능성, (ii) 리모델링 공사의 리스크 요인별 중요도, (iii) 리모델링 공사의 공기지연에 영향을 미치는 리스크 요인 등 세가지 분석결과를 제시하였다.

• 한국인공지능학회지
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• 제9권1호
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• pp.1-7
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• 2021

In this paper, We focused the issue of creating a socially problematic nurse schedule. The nurse schedule should be prepared in consideration of three shifts, appropriate placement of experienced workers, the fairness of work assignment, and legal work standards. Because of the complex structure of the nurse schedule, which must reflect various requirements, in most hospitals, the nurse in charge writes it by hand with a lot of time and effort. This study attempted to automatically create an optimized nurse schedule based on legal labor standards and fairness. We developed an I/O Q-Learning algorithm-based model based on Python and Web Application for automatic nurse schedule. The model was trained to converge to 100 by creating an Fairness Indicator Score(FIS) that considers Labor Standards Act, Work equity, Work preference. Manual nurse schedules and this model are compared with FIS. This model showed a higher work equity index of 13.31 points, work preference index of 1.52 points, and FIS of 16.38 points. This study was able to automatically generate nurse schedule based on reinforcement Learning. In addition, as a result of creating the nurse schedule of E hospital using this model, it was possible to reduce the time required from 88 hours to 3 hours. If additional supplementation of FIS and reinforcement Learning techniques such as DQN, CNN, Monte Carlo Simulation and AlphaZero additionally utilize a more an optimized model can be developed.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2011년도 추계 학술논문 발표대회
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• pp.17-18
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• 2011

Over the past 20 years, Researchers have tried to develop "Integration Model of Cost and Schedule" in construction industry. They suggested various models and techniques, however, it is still required to develop new methodology for AL Form Work in Public Multi-Housing Projects. Accordingly, this research focused on measuring quantity take-offs of on-going projects and analysing the basic process of using the resources(Labor, Material, Plant) related to cost and time data. There are 3 steps of this research : 1) The literature review of previous studies about Integration Model of Cost and Schedule was conducted. 2) Model for integration between cost and schedule was developed. 3) the accuracy of developed model was verified. The results are expected to improve in integrated managing the cost and schedule data of AL form work.