기업을 대표하여 고객들과 상호작용을 주로 하는 서비스 산업의 종업원의 역할은 주어진 업무 특성 때문에 기업의 서비스 수준 평가에서 매우 중요한 영향을 미치게 된다. 서비스 제공 과정에서 나타나는 종업원의 감정 상태는 서비스의 최종성과라고 할 수 있는 직무성과와 서비스 제공수준에 많은 영향을 미치게 된다. 본 연구는 감정노동자 관점에서 감정노동과 가면행위가 감정관리 활동과 소진에 미치 는 영향 및 감정관리 활동이 조직성과에 미치는 영향, 그리고 감정관리 활동과 조직성 과간의 관계에서 사회적 지원과 직무자율성이 어떤 영향을 미치는지 규명하기 위해 문헌연구와 실증연구를 수행하였다. 문헌연구는 관련 논문을 조사하여 감정노동, 가면 행위, 감정관리 활동, 소진, 직무만족, 서비스 수준, 사회적 지원 및 직무 자율성의 연 구변수에 대하여 고찰하고, 연구변수 사이의 관련성과 영향을 파악하였다. 실증연구를 위한 설문조사를 실시하여 수집된 자료는 SPSS 20과 AMOS19를 이용하여 구조방정 식모형분석과 위계적 회귀분석을 실시하였다.
Everyday many casualties have been occurred in the buildings. the design of the fire safety of buildings is based on the regulations. Otherwise, the secure for fire safety performance has not been designed in the practical aspects. These problems are caused by the incentive effects. From the perspectives of building owners, they do not have the incentives for direct investment on the safety plan of fire-rescue. So, it is necessary to force the laws and regulations on them. In addition, a special evacuation stairs of the apartment with the ventilation equipment is not being secure at all. Instead, an installation of special evacuation stairs in/outside the open window inside ancillary rooms should be reviewed.
This study documents the 3-phase BLDC(Brushless DC) motor to improve conventional ventilator motor. Energy efficiency, noise, and air pollution reduction for the high-performance vibration of the BLDC motor has been used in many fields. BLDC motors for ventilator, we studied the controller and software.
National park visitors are expanding to National Park entrance fee abolition and five days a week system enforcement is rapidly increasing. Public sensitivity to socially various accident is a track record that is growing more and more. Analyzes the usage of the national park visitors who are looking for people comfortable leisure life and health, also, the work of actual analysis of the National Park safety management, is that always necessary, also, the future of the National Park will be utilized as a material that can be utilized in the development of safety policies.
Every year the amounts of yellow sands and their impacts have been rapidly increased. the national action plans has been strongly required. When the preliminary alerts for yellow sands are occurred, On-line public relations for the occurrences of yellow sands, their expected regional impacts and the public guidelines should be emphasized. Also, A joint emergency situation management system among related agencies should be established to minimize the damages.
최근 제품의 개발 주기가 지속적으로 단축되고 있으며, 많은 기업에서는 이에 따른 제품개발 프로세스의 혁신을 위한 노력을 끊임없이 하고 있다. 현재의 공학기술측면과 새로운 기술개발측면에서는 고객의 요구사항 분석, 기술개발 실현 등 많은 발전이 있 었지만, 제품의 안전성이나 신뢰성 측면의 기술 개발 속도는 여전히 더딘 실정이다. 이러한 문제점을 해결하기 위한 가속신뢰성시험 중에 초가속수명시험(HALT : Highly Accelerated Life Test)은 최단기간에 제품의 신뢰성을 확보 할 수 있는 신뢰 성시험 기법이다. 이에 따라 최근에는 대기업을 중심으로 HALT의 수요가 급격히 증 가하고 있다. 하지만 국내 연구소와 시험 서비스 기업에서 보유하고 있는 HALT 장비 는 매우 제한적이며, 대부분 수입에 의존하기 때문에 구입과 설치에 많은 비용이 필요 하다. 이러한 이유로 중소기업에서는 HALT 장비의 효과적 활용에 많은 어려움을 겪 고 있다. 정부에서는 이러한 문제점을 해결하기 위해 HALT 장비의 국산화 개발을 추 진 중이다. 본 논문에서는 HALT 장비의 안전성을 확보한 국산화 개발을 위해 리스크 분석 방 법을 조사해보고자 한다.
There are so many definition of good work but generally job quality can be useful to analyze the good work. Can good work keep employee healthy? Good work may include some factors about health or working environment. This paper was planned to investigate the level of job quality in Korean employees and its distribution by industry and occupation. Especially comparison of health status between low an high job quality ccan be analyzed. Korean Working Conditions Survey was used. Tthe various job characteristics as working conditions were categorized into 6 component of job quality using factor analysis. Statistically mean difference test and cross-tabulation analysis were used to identify the difference of health status and distribution of the level of job quality. The result has shown the different distribution of the level of job quality by the economic sectors and occupations statistically significant. The positive cases of all of six components of job quality was 2.1% of Korean employees and the negative cases of all six components of job quality was 1.5%. Electricity and gas industry and manager occupation have shown the highest proportion of the high job quality. The subjective general health status was correlated with job quality but work-related stress was negatively correlated with the level of job quality. This study was heuristic one, more depth analysis will be needed to identify the relationship and causation of job quality and health status.
Quality of life due to climate change are different and are seeking a way, that affects most of the water seems to be the field. Carbon dioxide is a greenhouse gas causing climate change in the proportion known to be the most. According to the OECD's 2050 Environmental Outlook in Korea is the OECD country with the most severe water stress was released. Water shortages in 2020, Korea has been known to enter the country. The OECD Green Growth policy of the keyword in the water to be present Water Footprint is produced from raw materials procurement, disposal and recycling of the product's life cycle to calculate the water usage of water resources is a technique to quantify the load. Water footprint calculations are used in the per-unit water consumption. In this study, to measure the carbon dioxide emissions and water usage more accurately measure who try and look for ways to manage
The Earthquake has been a global issue and the national policy (prevention - preparation - Response - Recovery - Education - Training) has been urgent needed. To minimize the casualties and property damage by the disaster and for the early recovery of the social function, the targets of national seismic performance are significant. The current level of science has limitations in predicting earthquakes. Many countries' experiences including the Japan are lessons for Research & Development for earthquakes.
제품 개발기간의 단축속도가 빨라지는 현 시점과 제품의 부품 시험을 통한 개발 과 정은 현실적인 한계에 부딪히고 있다. 이러한 문제점을 해결하기 위해 지금 까지는 가 속수명시험(Accelerated Life Test)법을 개발·적용해 왔다. 그러나 제품의 사용조건이 가혹해 짐으로써 온도를 이용한 가속시험을 적용하기에는 한계가 있다. HALT는 급격한 온도변화와 6축 진동을 시료에 전달할 수 있는 장비로써 위의 조 건을 충족시킬 수 있다.[5] 그러므로 본 연구에서는 부품과 재료의 신뢰도 정보를 신속 하게 얻을 수 있는 HALT의 국내외 연구 동향과 적용 현황을 비교 분석 뿐만 아니라 HALT와 HASS의 효과적인 활용방안을 모색하고자 한다.[2]
In this paper investigated the without encoder drive for stepping motor using back electromotive force(B-EMF). In generally stepping motor should be rotary encoder to rotor position, the rotary encoder is adopted to detect the position. But in this way increase cost and volume. This paper propose B-EMF & closed-loop method was implemented using current detect circuit, AD-converter and MCU(micro controller unit). So that stepping motor environment is very simplify. The current of stepping motor was measured by using amplifier. The change of current was measured and analyzed, when the missing step occurred. Based on data from current feedback, position errors were compensated and it was confirmed by using AD-converter.