• 대한전기학회논문지:시스템및제어부문D
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• 제54권10호
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• pp.581-586
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• 2005

The multi-beam side scan sonar system uses the towfish installed sonars, it is an equipment that search images of the bottom surface of the sea in real time. It is a typical equipment that is related to a sea investigation such as a geological survey, seabed communication cable and power line cable placing repair investigation, fish breeding ground investigation, sea purification, relic and mineral investigation, and mine and submarine search. Recently, it is used to sea purification and geological survey that require information of the correct surface of the seabed. Therefore, this research develops multi-beam sensors for a side scan sonar that supply various information with the fast scan speed and correct high resolution that is not a simple underwater investigation equipment.

• 동아시아식생활학회지
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• 제19권6호
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• pp.1039-1048
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• 2009

The purpose of this study was to establish a model of the use-utility of cooking equipments and kitchen centers using survey data and to compare U.S.A. with Korea. The survey was conducted to identify attributes that were related to the efficiency of kitchen centers as well as equipments. Indices for the most important attributes were developed and used to compare different selections of equipment. The impact of adding an equipment item was found to vary with the attributes of the item, the degree of importance ascribed to the attributes of the work center and specific functions performed there. Similarities and differences between the U.S.A. and Korea are discussed, and implications for those who have interest in the use-utility model of cooking equipment and kitchen centers are provided.

• 한국산업보건학회지
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• 제21권2호
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• pp.110-115
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• 2011

Objectives: The aim of this study is to survey for finding asbestos containing equipment at the laboratories using picture based questionnaire and polarized light microscopic analysis. Methods: This study was conducted from 2009 to 2010 at a university in Seoul. In 2009, picture based questionnaire was distributed to 100 laboratories during the regular laboratory air quality monitoring. In 2010, we emailed all professors of the same university who have laboratories to participate voluntarily this survey. For the laboratories consented to participate survey, picture based questionnaire was distributed and collected. Suspected asbestos containing material and apparatus were collected at the laboratories which replied they have suspected material and equipment. Collected samples were analyzed with polarized light microscope at the laboratory accredited by ministry of employment and labor in Korea. Results: Total of 18 out of 100 laboratories reported that they had suspected asbestos containing equipment in 2009. Twenty-three samples were collected and three samples (13%), one heating mantle and two pairs of insulation gloves, contained asbestos. Thirty four laboratories reported they had suspected asbestos containing material or equipment in 2010. Sixty samples were collected and four of them (6%), two pairs of insulation gloves, one packing rope in dry oven and, one pair of tongs, contained asbestos. All founded asbestos was chrysotile and the content of chrysotile was more than 90% for all equipment except heating mantle which has less than 1%. Conclusions: We confirmed that asbestos was still used at the laboratories though strict regulations on asbestos use in Korea. The method of picture based questionnaire invented in this study could be applied for asbestos survey to other research institute or university where there are many laboratories because of its simplicity and accessibility without huge man power, cost and time.

• 한국환경보건학회지
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• 제40권6호
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• pp.454-468
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• 2014

Objectives: This study was conducted to investigate the actual condition of the farm work environment and personal protective equipment as part of the effort to improve livestock work for the safety and health of poultry farmers and provide basic data for establishing plans to improve and develop personal protective equipment. Methods: For this purpose, a questionnaire survey on general information about stables, the poultry work environment, accidents, the wearing of work clothes and personal protective equipment, and the level of awareness related to personal protective equipment was conducted among 148 poultry farmers. Results: As a result, it was found that poultry workplace environment was exposed to such risks as fine dusts; organic dusts; poisonous gases; odorous substances; chicken excrement; contact with chickens, bacteria or viruses; and accidents related to machine operation. Thirteen percent of respondents suffered severe respiratory diseases, and the most frequently injured sites due to accidents were the hands (25.7%), knees (23.8%), arms (17.3%), and head (10.9%). The most frequent type of accident was collisions between the body and obstacles or machinery during movement (36.4%), followed by erroneous machine operation such as feeders and electric shocks (8.5%). Regarding the wearing of work clothes and personal protective equipment, 51.7% of the respondents wore worn-out clothing or everyday clothes, whereas only 32.0% wore work clothes. The percentage of farmers who wore proper protective equipment for the work environment during poultry work was 48.4%. The most frequently used type of protective equipment was boots (38.9%), followed by mask (36.7%), gloves (36.3%), appropriate work clothes (22.6%), quarantine clothes (17.6%), helmets (13.4%), and goggles (12.6%). The rate of wearing goggles was low because they were considered inconvenient and lowered work efficiency. Furthermore, they purchased everyday products available on the market for their personal protective equipment which were not appropriate for maintaining safety in an actual harmful environment and its consequent risks. As a result of the survey of the awareness level related to personal protective equipment, their levels of awareness of accidents and attitude proved to be average or higher, but the practice of wearing protective equipment and the level of knowledge and management of personal protective equipment were lower. Conclusion: This survey found that the wearing status of personal protective equipment among poultry farmers was insufficient even though they were exposed to risks. Most respondents were aware of the necessity of wearing personal protective equipment and of the potential for accidents, but they did not wear proper protective equipment. Their wearing rate was low due to a lack of knowledge about protective equipment, as well as the inconvenience of wearing it. Therefore there is a need to improve and develop specialized personal protective equipment for respiration, hands, and eyes, as well as work clothes that can protect farmers from major harmful matter that is generated in the poultry workplace. Based on the results of this investigation, we will conduct further studies on the required performance and design directions of personal protective equipment while collecting more objective data through field-oriented assessments.

• 유통과학연구
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• 제20권12호
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• pp.99-108
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• 2022

Purpose: This study attempted to identify determinants affecting research collaboration and R&D distribution activities, especially regarding facility and equipment leasing of small and medium enterprises (SMEs) in South Korea. The objective of this study was to find the most significant firm characteristics that affect firms participating in an R&D collaboration and distribution program and investing in R&D in terms of leasing payment for equipment. Research design, data, and methodology: This study analyzes which SMEs' characteristics influence external research cooperation activities by examining the SMEs that received government support for equipment leasing using multiple regression analysis and residual plots. The survey combined two databases: 1) a fact-finding survey of participating firms by the Ministry of SMEs and Startups, and 2) leasing information by the Korea Association of University, Research Institute and Industry. Results: The study found that firm size positively impacts R&D investment, R&D collaboration and distribution. Conclusions: The study provided evidence to policymakers and government officials that firms with more employees will more likely participate in government support programs. The study results also prove that government officials believe firm location does not impact R&D investment, R&D collaboration and distribution.

• 한국재난정보학회 논문집
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• 제17권1호
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• pp.97-111
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• 2021

연구목적: 지속가능한 기반시설 관리 기본법 시행으로 시설물관리가 강화되면서 다양한 시설물 진단장비가 필요할 것으로 예상되고 있다. 다양한 융합장비에 대한 시장요구에 맞춰 합리적인 수준의 인증제품 공급하기 위한 인증제도가 필요하다. 본 논문에서는 첨단 기술을 이용한 시설물 진단장비에 대한 인증체계 도입방안에 대하여 연구하였다. 연구방법: 기존 국내 유사인증제도에 대한 상세분석 및 비교를 통하여 인증제도의 기본적인 요소와 체계 및 절차에 대하여 검토하였다. 또한, 카탈로그방식, 최소성능기준(표본조사, 전수조사)에 대하여 진단장비 개발자(제조자), 발주자, 장비사용자를 대상으로 설문조사를 실시하였다. 연구결과: 설문결과 발주자는 최소성능기준 전수조사 방식을 선호하였으며, 장비사용자 역시 최소성능 전수조사 방식과 표본조사를 거의 비슷한 비율로 선호하였다. 반면, 장비개발자는 카탈로그방식을 선호하였다. 결론: 진단장비의 사용자 입장인 발주자와 사용자는 품질에 대한 신뢰가 중요하므로 최소성능기준제시를 선호하였다. 반면, 개발자(제조자)는 다양한 제품의 개발에 규제가 되므로 자기인증방식인 카탈로그방식을 선호하였다. 현재 사용자가 요구하는 최소성능기준 방식의 도입에 필요한 최소성능기준에 대한 구체적 방안이 마련되지 않은 상황이다. 또한 구체적인 최소성능기준 마련에도 상당한 기간의 연구가 필요하므로 무리하게 인증 제도를 도입하는 것은 바람직하지 않다. 따라서 현실적으로 국내 시설물진단 및 검정장비 시장의 안정적이고 지속적인 발전을 위해서는 카탈로그 방식을 중심으로 일정기간 제도를 운영하는 것이 적절하다. 또한, 향후 필요에 따라서 최소성능기준에 대한 구체적 방안이 마련되면 시장에 대한 영향을 최소화 하는 범위에서 인증 제도를 확대 및 발전시켜 나가는 것이 효과적이다.

• 해양환경안전학회지
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• 제21권4호
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• pp.381-388
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• 2015

본 연구에서는 실제 외항선에 종사하는 선장 및 항해사 260명을 대상으로 GMDSS 통신장비와 항해사가 정보를 인식할 수 있는 대표적인 항해장비 ECDIS에 대하여 사용실태, 만족도, 만족 및 불만족의 이유를 조사하였다. 응답자들은 통신장비 중 MF/HF와 INMARSAT (telex)를 각각 자주 사용하는 장비 3, 4위로 선택하였지만 동시에 불필요한 장비 2, 3위에 해당된다고 응답하였고 이러한 응답 결과는 일부 통신 장비의 경우, 잦은 사용 빈도가 항해 안전의 유용성 크기와 비례하지 않다는 것을 보여준다. 특히 통신장비를 사용할 때 응답자의 42.3%와 50%는 '장비의 운용상 편리'와 '해당 정보의 필요'가 해당 장비 사용의 만족도를 높이는데 중요하다고 답변하였다. 이를 통해 선박의 안전을 위해서는 새로운 설비, 기술, 서비스의 도입 뿐 아니라 '정보의 접근성', '정보의 적절성', '장비의 용이성'이 중요하다는 사실을 알 수 있다. IMO에서 논의되는 다양한 정책과 규정이 선박의 안전을 보장하는 장치로 충분히 활용되기 위해서는 최종 사용자를 대상으로 한 구체적이고 실질적인 검증이 보완되어야 한다.

• 지적과 국토정보
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• 제46권1호
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• pp.3-21
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• 2016

본 연구에서는 공중 및 지상장비에 따른 3차원 공간정보 구축의 핵심요인을 분석하고 선호도 조사를 통하여 품질 향상 방안을 도출하였다. 이는 3차원 공간정보 구축을 위한 개별 기술 요소에 대하여 품질에 영향을 미치는 요인을 조사하고, 개선이 요구되는 우선순위를 파악하여 이에 대한 요인 평가 및 대안기술 개발과 적용 등의 자료로 활용하기 위함이다. 이를 위해 3차원 공간정보를 바라보는 집단 간 견해차의 선호도 조사를 통하여 공간정보 및 측량에 종사하는 전문가 집단과 일반적으로 3차원 공간정보를 경험한 비전문가 집단을 대상으로 동일성 유무를 계량적 기법에 의해 판단하였다.

• 한국항해항만학회지
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• 제40권3호
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• pp.89-95
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• 2016

S-Mode는 항해설비에 있어 표준화된 디스플레이, 기능 및 공통인터페이스를 사용자에게 제공하여 항해기능 사용의 친숙화를 도모함으로써 항해안전성 향상을 위한 기능이다. 2008년 국제해사기구에서 국제선장협회는 S-Mode 도입의 필요성을 제기하였고, 2015년 6월 해사안전위원회에서 승인된 e-Navigation 전략이행계획에 주요과제로서 S-Mode 가이드라인 개발을 2019년까지 완료할 것을 목표로 하고 있다. 본 연구는 S-Mode 가이드라인 개발에 대한 사용자의 기대와 요구사항을 조사하기 위해서 핵심 항해설비인 전자해도시스템의 주 사용자인 항해사를 대상으로 S-Mode의 필요성과 표준화의 범위, 개발에 고려하여야 할 우선순위 요소에 대한 설문조사를 실시하고 그 내용을 분석하였다. 연구의 결과는 e-Navigation 이행 시 선박 항해설비 전반에 적용될 S-Mode 개념 및 기능에 대한 개념을 구체화하고, 개발에 고려할 세부요소들을 제시함으로써 구체적인 표준화 항목을 도출하는 것에 기여할 수 있을 것으로 기대된다.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2004년도 추계학술대회 논문집
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• pp.696-699
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• 2004

A side scan sonar system uses the towfish installed sonars, It is an equipment that search images of the bottom surface of the sea in real time. It is a typical equipment that is related to a sea investigation such as a geological survey, seabed communication cable and power line cable placing repair investigation, fish breeding ground investigation, sea purification, relic and mineral investigation, and mine and submarine search. It used to fined objects and investigate on the seabed surface. But, recently, it is used to sea purification and geological survey that require information of the correct surface of the seabed. So, it needs various filtering technique and image processing techniques development to acquire high resolution image. therefore, this research develops a side scan sonar using multi-beam sensors that supply various information with the fast scan speed and correct high resolution that is not a simple underwater investigation equipment.