• 한국안전학회지
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• 제17권3호
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• pp.96-101
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• 2002

The object of risk assesment is to prevent the accident from arising. The main reason for risk assesment of construction work is to determine priority order of improvement plan about risky work. Formwork is a complicated process that determines the total duration of apartment construction, and occupies 10∼15% of total construction expense, and 17% of serious accidents occur during formwork. So, formwork occupies very importment roles in work sites, economical efficiency and safety. We need to identify the work type with a high risk of accidents, and to establish suitable safety counterplan and implement intensive safety management.

• 대한인간공학회지
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• 제29권4호
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• pp.495-503
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• 2010

The packing and sorting processes of grape are required repetitive movements to need considerable physical load for a long time. And thereby, there is strong possibility to cause musculoskeletal disorders. In this study, ergonomically designed convenience equipments of worktable and handcart are introduced for improvement of the working movements and less physical load to increase the work efficiency. For objective analysis of the movements and the workload between the ones before and after the improvement, we measured heart rate, OWAS, RULA, REBA, LMM, moving Line and work time. Also, we used a checklist of physical fatigue regions to confirm the subjective evaluation of physical load of workers. As the result of study, it showed lower heart rate, value of Working Postures (OWAS, RULA, REBA) and LMM in the work after introduction of those convenient equipments than the work of before the introduction. The work time and moving Line were shortened and the number of grape boxes packed within the same work time was increased, too. Also the overall load as the subjective evaluation was reduced.

• 한국건설관리학회논문집
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• 제11권3호
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• pp.115-124
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• 2010

최근 세계적인 경기침체로 인하여 많은 산업이 불황을 겪고 있으며, 건설업 또한 많은 어려움을 호소하고 있다. 이러한 경기침체를 극복하기 위해 건설회사들은 경영의 최적화와 관리조직의 슬림화 등을 통한 공사의 효율성과 생산성 향상을 위하여 많은 노력을 기울이고 있다. 특히, 건설프로젝트 수행의 효율성과 생산성은 현장조직과 관리자 개개인의 업무수행능력에 크게 좌우되므로 현장관리 조직 및 관리자의 역량 및 업무수행능력의 향상은 많은 건설회사의 중요한 과제이다. 이에 본 연구는 일반건설업체 현장관리자들의 업무내용을 직무별로 도출하여 각 업무의 중요도 및 업무량과 업무난이도를 분석하고 관리자들의 직무별 업무수행수준 및 업무수행능력에 영향을 미치는 요인을 분석함으로써, 향후 건설공사 수행에 있어 공사의 효율성과 생산성 향상을 위한 개선방향 모색의 기초자료를 제시하였다.

• 한국건축시공학회지
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• 제23권1호
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• pp.93-102
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• 2023

건축감리는 시공과정을 관리·감독하여 고품질의 결과물 창출을 지원하는 주요 업무단계로 정의할 수 있다. 이와 같은 감리업무의 성공적 수행을 위해서는 불확실한 현장여건에서 발생하는 다양한 정보의 수집이 전제되어야 하나, 현행 감리업무는 보고서 등 문서자료를 중심으로 운영되어 정보 수집에 한계가 존재한다. 실제 최근 국내에서 발생한 공동주택 붕괴 사고의 원인 중 하나로 감리업무 수행을 위한 정보 소통의 한계가 지적된 바 있다. 이에 본 연구는 건축감리 업무의 효율성 제고를 위해 활용할 수 있는 디지털 기술의 종류를 분석하고, 이에 대한 우선적용 순위를 제시하였다. 우선 적용 순위는 다양한 이해관계자를 대상으로 설문조사를 통해 수집된 데이터를 계층적의사결정기법을 통해 정량적으로 평가하였다. 본 연구의 결과는 향후 건축감리 업무를 대상으로 디지털 기술 적용방향을 검토하기 위한 로드맵 수립의 기초자료로서 활용이 가능할 것으로 예상된다.

• 산경연구논집
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• 제14권3호
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• pp.19-26
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• 2023

Purpose: There is little emphasis on alternative forms of communication in psychotherapy, thus leaving a gap in research on the impact and effects of alternatives such as using artistic expressions. The current research, therefore, seeks to address the gap by investigating the effect of psychological counseling using Art Therapy on improving workers' job efficiency. Research design, data and methodology: The present author collected topic related to prior studies in terms of psychological counseling, art therapy, and employee job efficiency. And then, the author conducted clear procedure of the screening to eliminate inappropriate previous works including conference papers and dissertations so that this research could obtain only journal articles and books which have been proven by high degree of reliability and validity. Results: This research has concluded that psychological counselling using art therapy is pertinent to improving the worker's job efficiency in various ways, addressing properly mental health issues ranging from small to complicated or acute issues, thus promoting the well-being of employees to work at their optimum or best possible conditions. Conclusions: Psychological counseling using art therapy improves self-confidence, esteem, and awareness. Further, it enhances their social skills, expression capability, and general work ability. Elsewhere it improves coping with pain and reduces stress and depression.

• 한국의료질향상학회지
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• 제19권2호
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• pp.68-80
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• 2013

Background: This study investigates improvements in non-value-added nursing activities in clinical work, in order to improve the efficiency and quality of nursing activities. Methods: The study was performed as a quality improvement project at a tertiary general hospital. The nursing activities that needed improvements were categories into admission care, discharge care, supply management, diagnostic work-up related activities, and others. The nursing time and frequency of non-value-added activities were compared across nine nursing units before and after implementation of the quality improvement program. Post-implementation patient and nurse satisfaction were subsequently analyzed. Result: Post-implementation, the time spent on non-value-added nursing activities was reduced and patients and nurses were satisfied with the improvements. Discussion: Reducing non-value-added activities in nursing can increase the work efficiency and ensure time for patient care, thus improving the quality of nursing care. For further study, accurate surveys on nursing activities based on nursing time are required.

• 대한영양사협회학술지
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• 제15권3호
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• pp.262-277
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• 2009

Fresh-cut foods have been widely used in the school foodservice industry due to their convenience and saving effects of labor and working hours. This study evaluated the effectiveness of using fresh-cut foods in school foodservice with respect to cost efficiency, customer satisfaction, employee satisfaction, and productivity. First, in terms of cost efficiency, the cost of the fresh-cut food per meal price significantly increased by 2.6% via the new production plan. Meanwhile, the costs of labor and food wastes significantly decreased by 3.0% and 0.3%, respectively, after implementing the new plan. Second, customer satisfaction towards foodservice significantly increased, from 2.94 points prior to the new plan to 3.45 points. Third, foodservice productivity such as of the number of meals per full-time equivalent employee increased by 5.7 meals, from 143.0 meals to 148.7 meals after intervention. The productivity index of work hours for producing a meal also increased and was reflected by a work time reduction of 0.77 minutes, specifically from 4.25 minutes to 3.48 minutes. The labor cost per meal also decreased by 29.9 won, from 331.91 won to 301.97 won, but there was no significant difference. Through these results, we identified that using pre-process foods in school foodservice has positive effects on labor saving, customer satisfaction, and employee work satisfaction.

• 한국의류학회지
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• 제44권5호
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• pp.923-949
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• 2020

Improving work efficiency and satisfying customers through personalized services is becoming more important in an increasingly competitive hair industry. Wearables may help to improve hair designers' work efficiency and customer satisfaction by analyzing customer and hair designers' conditions and provide hair stylingrelated data. However, there is limited research on developing wearables for hair designers (WHDs), and many existing wearables were developed without understanding user needs and perceptions. This research investigated preferences, perceptions, and intentions on WHDs based on hair designers in the U.S., which is the largest hair market. Specific design options that hair designers preferred and possible options to meet requirements that hair designers expect for wearables were identified and suggested in WHD design guidelines. Second, most people preferred a WHD design of a black-colored bracelet/watch that can be a necklace designed with preferred functions; in addition, 3D virtual images and 3D printed models were prototyped. Third, developed designs were evaluated. More than 70% of users were satisfied and considered it as useful and easy to use, with an intention to purchase. The results are expected to provide insights to designers when developing WHDs.

• 로봇학회논문지
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• 제15권1호
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• pp.32-38
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• 2020

This paper describes a method for tracking attitude and position of underwater robots. Underwater work with underwater robots is subject to differences in work efficiency depending on the skill of the operator and the utilization of additional sensors. Therefore, this study developed an underwater robot that can operate autonomously and maintain a certain attitude when working underwater to reduce difference of work efficiency. The developed underwater robot uses 8 thrusters to control 6 degrees of freedom motion, IMU (Inertial Measurement Unit), DVL (Doppler Velocity Log) and PS (Pressure Sensor) to measure attitude and position. In addition, the thruster allocation algorithm was designed to follow the control desired value using 8 thrusters, and the motion control experiments were performed in the engineering water basin using the thruster allocation method.

• 한국대기환경학회지
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• 제24권3호
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• pp.336-345
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• 2008

A large volume of work has been attempted to improve the separation efficiency of cyclone by establishing new design and optimum operation. An auxiliary device called Post Cyclone (PoC) has been introduced and tested in an earlier work (In order to reduce the emission of fine dust from the reverse flow cyclones). This work applies the PoC to remove the dust and gaseous elements using a centrifugal effect remained in the discharging flow over the cyclone. As a result of the experiment, the efficiency was found best at the high gas concentration and low inlet velocity.