• 한국소음진동공학회논문집
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• 제23권1호
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• pp.3-8
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• 2013

Recently, the impact on hearing induced by using of portable audio equipment have been actively studied. In general, Because they turn the volume up with loud background noise, they may expose to louder noise. In this study, we investigated the maximum noise level of 20 the domestic potable audio equipment and estimated the impact of the hearing induced by portable audio equipment in according to exposure time. As a result, the use of portable audio equipment is assumed to be more three hours when the level of more than 50 % of volume is most likely to affect the hearing.

• 실천공학교육논문지
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• 제7권2호
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• pp.125-134
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• 2015

본 연구는 반도체산업에서 반도체 장비의 유지보수를 위한 전문기술인력을 효과적으로 양성할 수 있는 반도체장비 유지보수 기능인력 양성 프로그램을 개발하고자 하는데 그 목적이 있다. 연구의 목적을 달성하기 위하여 반도체장비유지보수 분야의 국내외 실태 조사, 문헌조사를 통하여 반도체장비유지보수 관련 교육훈련 수요 예상 인력을 파악했으며, 직무분석을 통하여 반도체 장비 유지보수 기능 인력의 직무 및 교육내용을 분석하였다. 이러한 결과를 토대로 반도체 장비 유지 보수 기능인력 양성을 위한 교육프로그램을 제시하였다.

• 동아시아경상학회지
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• 제11권3호
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• pp.11-25
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• 2023

Purpose - The goal of this study is to grasp the current status of the latest overseas direct purchase trends and diversified consumption tendencies, and it can be used as basic quantitative data for selecting the overseas direct purchase market and establishing policies in the e-commerce industry. This study examines the relevance between purchasing equipment and four demographics. Traits of the underlying purchasing equipment are cell phones, tablet PCs and PCs & notebooks. Research design, data, and methodology -This survey was performed in 2021 on a total of 4,537 combined panel households covering 3,510 households and 191,027 additionally set in 2019 and approximately 10,800 household members. In particular, correspondence analysis is utilized to mine the relevance among the underlying variables. Result - It is proved that the underlying demographics except age are relevant to the purchasing equipment of online overseas shopping. Especially, cell phones are closely relevant '2 million-3 million won', jointly relevant to 'service and office work' and marginally to all other academic levels except graduate school or higher. Conclusion - Under intense competition, overseas direct purchase shopping malls should strive to provide not only price competitiveness but better service and customer value in order to continue to grow.

• 상하수도학회지
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• 제32권6호
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• pp.507-515
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• 2018

The results of the survey on water utilization status, the wasted water factor, the awareness, and the education and promotional activities of water saving in Daejeon City are as follows: The percentage of using tap valve with a closure was 66% when showering. 74% of water was used with closing the tap valve when washing faces with no water needed, it was still considered that there existed a wasting water. The most wasting reasons of water were found to be shower, bath, and laundry in order. In the awareness of practicing tap water saving, 9.1% of respondents acted actively, 53.4% of them were trying to practice it, and more than 63% had a positive awareness. In the contents of practicing saving water, locking water when soaping while showering, non-laundry of small quantity, and using cups when brushing teeth were top priorities. About 50% of the reasons for saving water was to practice purely saving water, when saving for economic help was excluded. The level of water saving awareness was not high when considering that the ratio of usage without water saving equipment and installation, and using method was relatively high when moving in. In order to make usage of water saving equipment more common, it was deemed necessary to provide information on the purchase of water saving equipment and to promote and educate the efficiency of saving of related products. More than about 90% of the respondents responded that water saving education or promotional activities had an effect of improving water saving awareness. The most effective method of education and promotional activities was found to be 40.4% by mass media activities, and 21.7% by promotions through mobile devices.

• 한국환경보건학회지
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• 제43권1호
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• pp.42-54
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• 2017

Objectives: The present study was conducted to investigate farm work environments among farmers and examine the level of management of safety and health, and to subsequently produce study result to serve as foundational data for the development of guidelines on safety and health as part of the improvement of farming work environments among farmers raising Korean native cattle. Methods: The present study conducted a survey on farm work environments and the management of safety and health with 407 farmers engaged in Korean native cattle farming in selected regions in eight provinces. It also visited 10 farmers to verify the current status of farm work. Results: The survey results showed that 16.4% of the respondents experienced safety-related accidents due to farm work. The locations of the accidents were inside the cattle shed (71.4%) and facilities outside the cattle shed (19.6%). The types of accident showed collision with animals (35.7%), collision or contact with obstacles (27.1%), and musculoskeletal accidents due to heavy object handling (12.9%). The causes of the accidents were cattle (38.3%), cultivators and tractors (25.4%), facility tools in cattle sheds (9.0%), and slippery floors (6.0%). The damaged areas were hand (21.0%), spine (19.8%), lower limb (18.5%), and foot (17.3%). A self-diagnostic survey on respiratory diseases showed that 11.5% of the respondents experienced respiratory-related symptoms. The survey on safety and health during farm work showed that wearing personal protective equipment and response to emergency situations, which were needed to prevent safety-related accidents, were relatively low compared to the level of recognition of the need and awareness of safety issues. Furthermore, the field survey identified the current status of safety and health issues such as prevention management of collision accidents with cattle, how to handle heavy objects, and wearing of personal protective equipment. Conclusions: The present study identified safety-related accidents and problems in the management of safety and health among Korean native cattle farmers. In order to address the problem, it is necessary to not only provide guidelines on safety and health management which are appropriate to the characteristics of Korean native cattle farming work, but also to study the development of personal protective equipment.

• 한국환경생태학회지
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• 제29권2호
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• pp.174-183
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• 2015

We have conducted a verification test of correlation between bird community indices and bird sound recording results in order to use the equipment which deals with the automatic sound collecting system, the song meter. The study areas include four sites which are Gombaeryoung and Zochimryoung in Jeombongsan Mountain and Jookryoung and Gochiryoung in Sobaeksan National Park. We collected the bird sound data five times using a sound recorder and field survey results in the same place of the study site. As a result of the sound recording from the field survey, the species recorded by three researchers of sound analyst include common resident species or species which have a relatively conspicuous call and song. On the contrary, the species recorded by only one researcher are a relatively rare or inconspicuous species or was familiar with the personal experiences of each researcher. The number of species recorded by only one researcher totaled fourteen species (36.8 %), and that of two researchers totaled twelve species (31.6 %), and that of three researchers totaled twelve species (31.6 %). The correlations of the number of species among three researchers was not significant in some results, but the sum or maximum count of the number of species was useful to estimate a significant correlation between the result of researchers and the indices of field surveys. As a result of correlation analysis by using sound recordings, the maximum number of species among the three researchers significantly correlated with the number of species, the species diversity index and the species abundance index in the field survey at the same site, however it did not correlate with the number of individuals and species evenness index. As a result of sound analysis collected from the stationary sound recording system; song meter, the number of frequencies in bird songs and calls correlated with the number of species in the field survey at the same site. The number of calls and songs decreased as time went by. Finally, we could test the active time range and change the activity strength by using a sound recording system. In particular, that sound recording system is able to collect data in same time and site, so it is expected so that the equipment not only replenish a shortage of researchers and survey periods in field research in a short term monitoring survey, but also be able to acquire statistical objectivity.

• 대한지역사회영양학회지
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• 제11권3호
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• pp.374-382
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• 2006

The purpose of the study was to investigate the effects of the characteristics of dietitians, the characteristics of school food services, equipment ratio of HACCP facility/equipment and perception of barriers to HACCP implementation on external and internal audit of food safety/sanitation management performance in school food service. An e-mail survey was conducted with 144 dietitians in Gyeongbuk Province. A response rate was 57.6% (N = 83) and data was analyzed using SPSS windows (ver. 12.0). Dietitian perceived facilities/equipment-related and stakeholder-related as the big barriers in implementing a HACCP system. Total scores of sanitation/safety management performance for external and internal audit were similar at 92 and 91 out of 100, respectively. 'Facilities/equipment' and 'HACCP system' categories in both external and internal audit were rated the lowest. As dietitian perceived facilities/equipment-related (p < 0.001) and stakeholder-related (p < 0.05) barriers to HACCP implementation were greater, the scores of the external and internal audits were significantly lower. As dietitian perceived barriers for all categories were greater, the scores of internal audits were significantly lower (p <0.05). As a result of multiple regression analyses, the scores of the external audit was positively associated with career as a school food service dietitian, but was negatively associated with barriers related to facility/equipment, while the scores of the internal audit was negatively associated with barriers related to facility/equipment and employees. This study suggests that supporting programs on securing the facilities/equipment and employee training are needed for successful HACCP implementation in school food service.

• 수산해양교육연구
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• 제27권5호
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• pp.1369-1379
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• 2015

This study attempted an AHP analysis through interview with experts in the industries and questionnaire survey on recognition of organization members and future strategic development direction in order to upgrade shipbuilding equipment industries to marine plant equipment industries. Key research results are as follows. First, according to analysis on relative priority between three aspects on acceleration of shipbuilding equipment industries, importance was shown in the order of acceleration of internal competence, acceleration of manufacturing technology, and acceleration of supply chain, which means that the aspect on acceleration of internal competence had relatively higher importance. Second, as for relative importance of detailed item evaluation per respective aspect, it was found that development of core competencies was high from the aspect on acceleration of internal competence, higher value-addition was high from the aspect on acceleration of manufacturing technology, and IT infrastructure construction was high from the aspect on acceleration of supply chain.

• 한국품질경영학회:학술대회논문집
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• 한국품질경영학회 2006년도 추계 학술대회
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• pp.366-371
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• 2006

Organizations worldwide make efforts to develop their management systems for business functions. The representatives of management systems include quality management system (QMS), environmental management system (EMS) and occupational health and safety management system (OHSMS). Implementing EMS and/or OHSMS in addition to QMS often requires integration of separate management systems in alignment with the organization's strategies and goals. Through the questionnaire survey on Korean marine equipment enterprises, this paper deals with the operational practices of management systems and analyzes perceptions about integrated management system (IMS). We found out the degree of perception is not sufficient enough to prepare background for IMS in Korean marine equipment enterprises. The results contribute to well understanding and successfully implementing IMS.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2001년도 학술논문발표회
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• pp.14-21
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• 2001

Recently, with the increasing of construction works, large construction equipment are used to reduce the term of work and labor cost in construction field. Therefore, construction equipment noise has caused much annoyance for a number of dweller in nearby construction field and it has become a very serious problem in our living environment. Nevertheless, in our country, adequite guidelines for the construction equipment noise are very deficiency because of the lack of basic data and insufficient research works. From this point of view, this study attempts to survey the characteristics and prediction of SIP piling noise. On the basis of measurement value, we analysed about prediction possibility of SIP piling noise by computer simulation.