• 대한전기학회:학술대회논문집
• /
• 대한전기학회 2007년도 제38회 하계학술대회
• /
• pp.723-724
• /
• 2007

Live line work is well known for mending and maintenance of electrical power equipment. Nowadays needs of electric power supply quality require live line work In Korea, live line work is needed since 765kV transmission operation and restructure of electric power industry has changed. In other words, in case of suspension of power supply on the transmission is getting hard to keep up with efficiency of transmission operation, customer's confidence and generation-limited cost. Therefore live line work is very meaningful. As the condition of 765kV Transmission both bare hand and Helicopter live line technique must be used in moderation because of economic, geographical, environmental circumstances around steel tower.

• 한국산업보건학회지
• /
• 제19권4호
• /
• pp.412-422
• /
• 2009

This study was conducted to assess exposure to musculoskeletal disorder(MSD) risk factors in hospital personnel who performed non-routinized work tasks. A tool ("PATH-KOSHA" version) was newly revised from PATH(Posture, Activity, Tools and Handling) method and uploaded into a personal digital assistant(PDA). The version was used, on a basis of direct-observation, to collect PATH data at the 2 hospital settings in different regions. Job analysis was performed to get various information (e.g., work and rest time, task type) as well. The data collected were visually checked for data cleaning and stored for future data analysis. A total of 1,992 PATH observations were made for 37 hospital workers. Exposure levels varied across 18 items of the MSD risk factors. The highest percent time spent on non-neutral postures was 53% for wrist deviation, followed by 47%(pinch grip), 35%(trunk posture), 23%(neck posture), and 20%(shoulder/arm posture). The highest percent time spent among hand activity level(HAL) variables was 55% for HAL-cat2 (HAL: 3.3 - <6.7). The percent time of items with respect to both loads with more than 5kg and contact stress was less than 4%. Vibration was not exposed in the study workers. Different aspects were discussed for findings. The study results showed that wrist deviation was highest in percent time spent on awkward posture while HAL-cat2 was highest in hand repetition. The study suggests that distal upper extremity posture and HAL should be primarily addressed and controlled in non-routinized work including the hospital settings.

• 한국전문물리치료학회지
• /
• 제9권3호
• /
• pp.113-124
• /
• 2002

The objectives of this study was to investiage the effects of sitting posture on carpal tunnel syndrome. Carpal tunnel syndrome (CTS) continues to be one of the most widely publicized maladies of the cumulative trauma disorder. Many studies have reported a positive association between CTS and highly repetitive work, high force, and poor posture. High force and repetitive work have especially been associated with CTS, but the evidence for work being a primary cause of CTS is strongest when these factors are combined. In addition to carpal tunnel syndrome, hand, wrist, and other disorders are attributed to these work-related movements. Such disorders are referred to as repetitive stress injuries, cumulative trauma disorder, overuse syndromes, and chronic upper limb pain syndrome. Incorrect posture also may play a role in the development of CTS in people who work at a computer and other types of keyboards. The tendency to roll the shoulders forward, round the lower back, and thrust the chin forward can shorten the neck and shoulder muscles, compressing nerves in the neck. This, in turn, can affect the wrist, fingers, and hand. The treatment and prevention of carpal tunnel syndrome continue to be approached with a segmental view of the human body. For example, the most common ergonomic solution for carpal tunnel syndrome associated with keyboard use is to keep the wrists in a neutral position by using a wrist rest in front of the keyboard and good sitting posture.

• 근관절건강학회지
• /
• 제16권1호
• /
• pp.13-25
• /
• 2009

Purpose: The purpose of this study was to investigate the relationships between job stress and work-related musculo-skeletal symptoms among nurses working in general hospitals. Method: A descriptive correlational research design was utilized. The participants were 438 nurses currently working in 4 general hospitals. Data were collected from Jan 2007 to Feb 2007, with Korean Occupational Stress Scale(KOSS)-basic form, KOSHA code H-30 and a questionnaire for general characteristics. Descriptive statistics, t-test, ANOVA, multiple logistic regression analyses were utilized. Result: Most participants(90.4%) complained of work-related musculo-skeletal symptoms. However, symptomatic nurses satisfying NIOSH screening criteria(symptomatic nurses) were 66.9%(293 persons). The most complained body part was back(39.5%). shoulder(37.7%), leg and foot(36.5%), wrist and hand(21.7%), neck(18.7%), and arm(9.8%). The mean of total score of occupational stress was 51.11. In multiple logistic regression analyses, age, working posture and total score of occupational stress showed significant associations with back symptoms. Exercise and total score of occupational stress were significantly related with shoulder symptoms. Hours of daily house keeping and working posture were related with leg and foot symptoms. Marital status and working posture were related with wrist and hand symptoms. Working posture only showed significant relations with neck symptom. Marital status, hours of daily house keeping, shift work, working posture, and total score of occupational stress were related with the symptoms in the arm. In conclusion, job stress of nurses might be related with work-related musculo-skeletal symptoms.

• 한국안전학회지
• /
• 제26권2호
• /
• pp.77-82
• /
• 2011

Recently, personal characteristics of organizational members arc regarded as an important factor that affects performance of organization. In addition, job stress is attributed to one of main factors that result in poor work ability and high turnover rate. In this study, job stress, work ability and DISC personality types were surveyed targeting 292 of foreman in shipbuilding company. The relationships between job stress and personal characteristics including personality types and correlation between job stress and work ability were analyzed based on the result of survey. As a result of statistical analysis, there were six statistically significant relationships between job stress and age, job tenure, work type, hobbies, exercise, personality types. On the other hand, there was a statistically significant relationship between work ability and exercise. Furthermore, negative correlation between job stress and work ability were found. In accordance with these analysis, this study presented how to improve work ability by managing job stress items and personal characteristics that affect the stress and the stress level.

• International journal of advanced smart convergence
• /
• 제10권2호
• /
• pp.97-107
• /
• 2021

This study attempted to confirm the factors that the meaning of work perceived by organization members and job embeddedness affects creative behavior. In addition, we tried to confirm the relationship between the meaning of work and job embeddedness. On the other hand, we tried to verify the mediating effect of job embeddedness between the meaning of work and creative behavior. Accordingly, the following results and implications were derived through the hypotheses set for the members of small and medium-sized enterprises. First, the meaning of work showed a positive effect on job embeddedness and creative behavior, and it was empirically analyzed that job embeddedness was improved on creative behavior. In order to improve the creative behavior of organizational members, the need for advancement of the management and training system to systematically improve and strengthen the meaning of work and job embeddedness has emerged. Second, job embeddedness showed a mediating effect between the meaning of work and creative behavior. In other words, the employee's job embeddedness acted as a direct or indirect factor according to the improvement of the meaning of work and creative behavior. Accordingly, as one of the major factors in human resource management and strategic human resource development for the advancement of the sustainable management system, the need for institutional establishment and implementation was required as it became more efficient and effective.

• Architectural research
• /
• 제25권1호
• /
• pp.11-17
• /
• 2023

This study aims to derive key construction supervision work that can be digitalized among construction supervision work. The scope of the study includes domestic construction sites to which the Building Act of South Korea is applied. First, the construction supervision process was identified through extensive consultation of construction expert witnesses. Afterwards, the key construction supervision works for digitization were derived through survey results construction expert witnesses. Among the 24 supervision works throughout the pre-construction, construction, and post-construction stages, the proportion of supervision work manpower or cost, the type of data generated by supervision work and the urgency of introducing digital technology, and the impact on productivity and safety of supervision work were evaluated on a 5-point scale from "very low" to "very high" was investigated. The survey was conducted by t-test analysis, and as a result, it was possible to derive that the level of digitization was higher than average in "quality management," "safety management," and "collection and cooperation of maintenance instructions." It can be interpreted that digitization has been introduced on a pilot testing basis or has already been completed according to the needs of the site. On the other hand, it can be interpreted that the work that are obtained below the average score are considered to be realistically constrained at the construction site and that it is inevitable for the supervisor to proceed manually. Future studies include analyzing the quantitative impact of the key construction supervision work once digitalization is fully applied.

• 문화기술의 융합
• /
• 제10권4호
• /
• pp.645-661
• /
• 2024

오늘날 4차 산업 혁명에 따른 새로운 기술의 발전은 비대면 협업과 같은 업무수행 방식이 요구되고 있다. 이에 부응하여 다양한 VR 협업 툴이 등장하고 있으나 협업이나 디자인 개발 업무에서 활용되고 있는 VR 협업 툴이 제한적이. 따라서 비대면 협업을 위한 VR의 장점과 가능성에도 불구하고 실무 활용에 있어 한계가 있다. 이에 따라 디지털화되고 있는 업무 환경에서 효과적인 협업을 위한 VR 협업 툴 개발이 필요하며 이를 위한 UI 디자인 개발에 관한연구가 요구된다. 본 연구의 목적은 사용자 조사를 통하여 협업 시 첫 단계인 브레인스토밍 단계에서 나타나는 사용자 행동 요소를 적용한 인터랙션 및 UI 디자인을 개발함으로써 VR 협업 툴 프로토타입을 제안하는 데 있다. 본 연구는 질적 연구로 연구 방법은 관찰과 심층 인터뷰를 통한 사용자 조사를 수행하고 이로부터 얻은 데이터를 분석한 결과로 5가지 사용자의 손짓 행동 요소를 도출하였다. 행동 요소로서의 손짓을 반영한 인터랙션 UI를 디자인하고 Unity와 Oculus Integration SDK Kit를 사용하여 컨트롤러 없이 사용할 수 있는 VR 협업 툴 프로토타입을 제작하였다. 본 연구에서 제작한 프로토타입에 대한 사용성 평가를 실시한 결과 사용자가 손짓을 정확히 행하여야 한다는 어려움이 나타나 UI 디자인의 보완점을 찾아볼 수 있었다. 또한 VR 협업 공간에서 개인 작업과 공유를 위한 공간의 구분을 조절할 수 있는 UI 디자인의 필요성도 알 수 있었다. 본 연구가 업무의 효율성을 높여줄 수 있는 VR 협업툴을 위한 인터랙션 및 UI 디자인 개발에 도움이 되기를 기대한다.

• 만화애니메이션 연구
• /
• 통권14호
• /
• pp.53-63
• /
• 2008

이 논문에서는 애니메이션에서 표현되는 '손'의 의미작용에 관해 연구해보고자 한다. 애니메이션에서 '손'은 단순한 조형적 제시나 의미전달뿐 아니라 내면의 의식과 이미지를 재창조하는 다양한 시도로 나타난다. 또한 '손'은 내러티브 형식으로서의 주체이자 객체로 개인의 의식과 사회적 현실을 동시에 반영하는 데 효과적인 역할을 한다. 따라서 본 연구 가 주목하는 것은 부분 또는 전체로 표현되는 '손'이 어떻게 애니메이션에서 작가의 의식과 시대성찰을 구현하고 있는가하는 점이다. 이처럼 '손'과 같이 일부로써 전체를, 또는 전체로써 일부를 나타내는 비유적 표현법으로 작품의 내용이 실제 세계를 드러낸다고 보는 시각은 수사학의 분야 중 제유에 가깝다고 보고 이를 분석들로 삼고자 한다. 이에 이지 트릉카(Jiri Trnka)의 작품 손(The Hand)을 필두로 애니메이션에 나타난 제유의 표현과 이를 통한 기법과 의미의 확장을 연구해 보고자 한다.

• Safety and Health at Work
• /
• 제6권3호
• /
• pp.159-173
• /
• 2015

The hand coordinate systems for measuring vibration exposures and biodynamic responses have been standardized, but they are not actually used in many studies. This contradicts the purpose of the standardization. The objectives of this study were to identify the major sources of this problem, and to help define or identify better coordinate systems for the standardization. This study systematically reviewed the principles and definition methods, and evaluated typical hand coordinate systems. This study confirms that, as accelerometers remain the major technology for vibration measurement, it is reasonable to standardize two types of coordinate systems: a tool-based basicentric (BC) system and an anatomically based biodynamic (BD) system. However, these coordinate systems are not well defined in the current standard. Definition of the standard BC system is confusing, and it can be interpreted differently; as a result, it has been inconsistently applied in various standards and studies. The standard hand BD system is defined using the orientation of the third metacarpal bone. It is neither convenient nor defined based on important biological or biodynamic features. This explains why it is rarely used in practice. To resolve these inconsistencies and deficiencies, we proposed a revised method for defining the realistic handle BC system and an alternative method for defining the hand BD system. A fingertip-based BD system for measuring the principal grip force is also proposed based on an important feature of the grip force confirmed in this study.