• 한국소음진동공학회논문집
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• 제26권6_spc호
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• pp.729-735
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• 2016

According to the survey for working environment of the cashiers in highway tollbooths, workers replied that noise was the most harmful substances next to air pollutant in the tollbooth. Researches on the noise levels exposed to cashiers in the highway tollbooth scarcely have been performed. Therefore, the aim of this study was to acquire baseline data to prevent health impairments of the cashiers by evaluating noise level exposed to them. Noise dosimeters were used for monitoring workers' noise exposure level in the tollbooths at 8 different highway tollgates. The noise levels of tollbooths did not exceed noise exposure limit of the ministry of labor, 90 dB(A). The average TWA inside of the tollbooths was 55.4 dB(A) and the average TWA outside of tollbooths was 58.3 dB(A). The average TWA outside of tollbooths was slightly higher than that of inside of tollbooths. However, the significance probability(p-value) was 0.255 which means statistically not significant. The noise levels inside and outside of tollbooth were statistically significant to both mean traffic volume per day and traffic volume of passenger car.

• Journal of Preventive Medicine and Public Health
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• 제33권4호
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• pp.477-483
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• 2000

Objectives : To obtain reference values for the pulmonary asbestos and non-asbestos fiber contents of residents in Korea and to compare them with similar results from Japan. Methods : The autopsied lung specimens from 22 deceased people (20 males and 2 females) in Pohang, without any known occupational history of asbestos exposure, were analyzed for incidence of asbestos and non-asbestos fibers by transmission electron microscopy with energy dispersive X-ray analysis after using low temperature ashing procedures. Results : Chrysotite fiber (46.2%) was the major fiber type found in the lungs of the subjects. The asbestos fiber concentrations found in males and females were $0.09\times10^6$ fiberss(g of dry lungs) and $0.30\times10^6$ fibers/(g of dry lungs), respectively, showing a geometric mean concentration $0.09\times10^6$ fibers/(g of dry lung tissue), due to the predominance of males in the sample. The non-asbestos fiber contents in males and females were $4.61\times10^6$ fibers/(g of dry lungs) and $17.79\times10^6$ fibers/(g of dry lungs), respectively, with a geometric mean concentration $5.21\times10^6$ fibers/(g of dry lung tissue). Conclusions : Residents in Pohang had significantly lower levels of both asbestos and non-asbestos fibers than urban residents in Korea. Furthermore, Koreans had significantly lower levels of both asbestos and non-asbestos fibers than Japanese.

• 한국인터넷방송통신학회논문지
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• 제19권5호
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• pp.219-227
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• 2019

제조업의 생산 방법은 노동집약적인 방법에서 제조설비 중심의 기술집약적인 방법으로 변경되어가고 있다. 사람의 노동력을 제조설비가 대체하게 되면서 제조설비의 모니터링과 관리의 중요성이 강조되고 있다. 또한, 최근 빅데이터 기술은 한정된 데이터에서 새로운 가치를 찾아내는 중요한 기술로 등장하였다. 따라서 제조업의 변화는 기존 제조 공장에 사물인터넷(IoT), 정보통신기술, 센서 데이터, 빅데이터를 융합한 스마트팩토리의 필요성을 증대시켰다. 본 논문에서는 제조설비 데이터를 몽고DB에 실시간으로 분산 저장 및 처리하는 기술과 R 프로그래밍을 사용한 시각화를 통해 기존 국내 제조업 공장이 빅데이터 기반의 스마트팩토리가 되기 위한 전략을 제시하고자 한다.

• 한국자원식물학회지
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• 제13권2호
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• pp.124-130
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• 2000

우리 나라의 남부지방에서 고품질의 참당귀를 생산하고자 비가림하우스를 이용하여 차광재배로 하고현상을 방지한 후 멀칭재배을 실시하여 시험을 실시한 결과는 다음과 같다. 1 멀칭 종류별 토양의 습도와 지온은 무멀칭보다 멀칭재배에서 높았고, 특히 멀칭 중에서도 P. E.(polyethylene) 멀칭이 가장 높았다. 2. 잡초의 발생은 멀칭 종류별 투명 P. E. 멀칭재배에서 가장 적게 발생되었고, 투명 P. E. 멀칭재배에서는 많이 발생되었다. 3. 생육은 P. E. 멀칭재배가 짚멀칭이나 무멀칭보다 엽수가 많고 엽장이 커서 양호하였다. 4. 추대는 2∼5% 정도가 발생되었으며, P. E. 멀칭 재배에서 약간 많이 발생되는 경향이었다. 5. 수량은 P. E. 멀칭재배가 토양의 물리성이 좋아서 근수가 많고, 근장과 묘두직경이 커서 뿌리 생장이 양호하여 증수되었다.

• 한국항공우주학회지
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• 제49권10호
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• pp.871-877
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• 2021

항공기 결함은 항공기 운영 및 조종사의 생명과 직결된 중요한 사항으로 항공기 조종 중 발생하는 임무 소프트웨어의 결함은 조종사 임무수행 및 안전에 심각한 영향을 미친다. 항공기 개발을 주관하는 단체나 소프트웨어 결함을 개발 초기에 식별하고 제거하기 위해 프로세스를 강화하고 많은 공수와 시간을 할애하고 있지만 임무 소프트웨어의 특성상 타 항전 장비와 강한 기능적 결합도(Coupling) 및 높은 복잡도(Complexity)를 가지고 있어 기존 시험 방법을 통한 소프트웨어 결함 식별 및 제거에 제약이 따른다. 본 연구는 임무 컴퓨터 연동 장비의 통신 데이터 중 피드백 데이터의 기댓값 검증을 자동화하는 도구를 개발하여 데이터 무결성 검증을 통한 임무 소프트웨어 건전성 확보 및 시험 비용 감소 효과를 분석한다.

• 한국사회정책
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• 제25권2호
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• pp.31-55
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• 2018

돌봄의 경제적 불이익과 성불평등은 서로를 강화한다. 성불평등의 기저에 돌봄의 불평등한 분배와 대우가 자리하고 있다. 돌봄은 성불평등을 심화시키는 경제적 불이익을 초래한다. 돌봄을 수행하는 자는 사회경제적 권력 관계에서 보통 약자의 위치를 점하고 있으며, 사회경제적 약자가 수행하는 돌봄은 그 수행에 대한 공정한 대우와 보상의 목소리를 내기가 어렵다. 그 결과 낮은 경제적 가치를 갖게 된 돌봄을 수행하는 자는 더욱 취약한 사회경제적 지위와 권력 관계에 놓여 불평등한 성별 관계를 지속시킨다. 기본소득 제도는 성불평등을 완화할 수 있는 잠재적 가능성을 지니고 있지만, 돌봄 노동의 특수한 성격이 야기하는 경제적 불이익은 그러한 잠재적 가능성을 희석시킬 수 있다. 기본소득 제도가 여성의 실질적 자유를 실현하기 위해서는 돌봄의 경제적 불이익에 대한 천착과 적극적 개입이 필요하다. 본 논문은 기본소득 지지론자들의 돌봄 노동에 대한 관점을 검토하고, 돌봄노동의 고유한 특성으로 인한 돌봄불이익이 완화 혹은 해소되지 않는다면 기본소득이 도입되어도 돌봄 노동 선택의 성별화를 변화시키는 데 한계가 있다고 주장한다.

• 한국의상디자인학회지
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• 제21권1호
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• pp.149-162
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• 2019

The purpose of this study is to suggest various directions of living hanbok and proposed the living hanbok design that integrated the tradition and the contemporary, as well as the past and present with denim material that represents the youth cultureby while using the motif of Korean Jogakbo. For the research method, the data on living hanbok, denim, and Jogakbo were surveyed to develop and produce a living hanbok design. The development of a living hanbok design emphasized the meaning of longing for an accumulation of good fortune, by using the concept of 'wishing for fortune' including the symbolic images of denim and Jogakbo. The production results of this study are as follows. First, the Jogakbo motif consisted of patterns yearning for harmony, great fortune, longevity, and many children, and the living hanbok design integrated with the denim material symbolized the convergence of the past and present and the harmony of eastern and western cultures. The study could verify that the living hanbok design was recreated in a contemporary sense to be used everyday by expressing contemporary senses in a traditional image. Second, leftover fabric pieces and recycled materials that can be abandoned by the material market were used for denim. This study could also develop the living hanbok design as a sustainable design through upcycling, an important social trend, puting an emphasis on carrying out socio-ethical responsibilities. Third, denim Jogakbo work, which is connected by small pieces of denim material, used to be a difficult and labor intensive handicraft, but it could be proposed as a new high value-added fashion and generate contemporary living hanbok with a new image.

• The Journal of Asian Finance, Economics and Business
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• 제8권7호
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• pp.55-66
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• 2021

The purpose of this study is to analyze the relationship and effects of variables both directly and indirectly (e.g., investment (INV), government expenditure (GE), unemployment rate (UR), economic growth (EG), and income inequality). The analytical phases consist, first, to transform the data using the Log Natural (Ln) method. Second, to check normality and multicollinearity of data. Third, to test direct effects of variables (government expenditure and investment effect on the unemployment rate and economic growth; investment on government expenditure; economic growth on unemployment rate; economic growth and unemployment rate on income inequality). Fourth, to test indirect effects using Sobel test, which involves UR and EG as intervening variable. Fifth, to test hypotheses with p-value < 0.05. The results of the study reveal that, of the 12 relationships, statistics show that 11 variations of the association have significant positive and negative effects. Theoretically, the different characters and goals of GE and INV in each country will have a different impact on EG and UR goals. The study provides an input, especially for the government. To create optimal EG through GE and INV, it is necessary to allocate budgets to industrial sectors that can absorb a massive labor force and to new economic growth sectors.

• 전자통신동향분석
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• 제36권1호
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• pp.54-63
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• 2021

Since the recent COVID-19 pandemic, countries have been strengthening trade protection for their security, and the importance of securing strategic materials, such as food, is drawing attention. In addition to the cultural aspects, the global preference for food produced in Korea is increasing because of the Korean Wave. Thus, the Korean food industry can be developed into a high-value-added export food industry. Currently, Korea has a low self-sufficiency rate for foodstuffs apart from rice. Korea also suffers from problems arising from population decline, aging, rapid climate change, and various animal and plant diseases. It is necessary to develop technologies that can overcome the production structures highly dependent on the outside world of food and foster them into export-type system industries. The global agricultural industry-related technologies are actively being modified via data accumulation, e.g., environmental data, production information, and distribution and consumption information in climate and production facilities, and by actively expanding the introduction of the latest information and communication technologies such as big data and artificial intelligence. However, long-term research and investment should precede the field of living organisms. Compared to other industries, it is necessary to overcome poor production and labor environment investment efficiency in the food industry with respect to the production cost, equipment postmanagement, development tailored to the eye level of field workers, and service models suitable for production facilities of various sizes. This paper discusses the flow of domestic and international technologies that form the core issues of the site centered on the 4th Industrial Revolution in the field of agriculture, livestock, and fisheries. It also explains the environmental awareness production technologies centered on sustainable intelligence platforms that link climate change responses, optimization of energy costs, and mass production for unmanned production, distribution, and consumption using the unstructured data obtained based on detection and growth measurement data.

• International Journal of Computer Science & Network Security
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• 제22권8호
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• pp.260-268
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• 2022

The article considers the training, competitiveness of specialists, professional mobility, professionalism and competence of specialists in the context of distance learning. The advantages of distance learning are shown. The characteristic features of distance learning in the preparation of students and in the implementation of these technologies in the educational process of higher educational institutions are determined. Competitiveness, professional mobility, professionalism and competence of a specialist are qualities that determine a person's life and work success. Professional mobility is interpreted as a systemic quality of a specialist's personality, which includes a whole range of knowledge, skills, abilities, personal qualities, value orientations, and so on. The vision of mobility of specialists by foreign scientists is presented. It is noted that the classification of professional mobility presented in the article makes it possible to organize various movements from a single position, to present them as separate manifestations of the general process of professional and pedagogical mobility, to determine which type of mobility ensures the performance of certain social functions. It was found that mobility can be differentiated into differentiated and intergeneration. According to the subject, individual and group mobility are distinguished; according to the direction - internal and external. The classification of employees according to their attitude to mobility is shown, which can be divided into the following groups: actually mobile; potentially mobile; actually stable; potentially stable.