• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2003년도 ICCAS
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• pp.296-300
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• 2003

The autopilot system targets decreasing labor, working environment improvement, service safety security and elevation of service efficiency. Ultimate purpose is minimizing number of crew for guarantee economical efficiency of shipping service. Recently, being achieving research about Course Keeping Control, Track Keeping Control, Roll-Rudder Stabilization. Dynamic Ship Positioning and Automatic Mooring Control etc. which compensate nonlinear characteristic using optimizing control technique. And application research is progressing using real ship on actual field. Relation of Rudder angle which adjusted by Steering Machine and ship-heading angle are non-linear. And Load Condition of ship as non-linear element that influence to Parameter of ship. Also, because the speed of a current and direction of waves, velocity and quantity of wind etc. that is disturbance act in non-linear from, become factor who make serv ice of shipping painfully. Therefore, service system of shipping requires robust control algorithm that can overcome nonlinearity. In this paper, Using fuzzy algorithm ,Design autopilot system of ship that could overcome the non-linear factor of ship and disturbance and examined result through simulation.

• 대한안전경영과학회지
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• 제24권2호
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• pp.25-32
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• 2022

The rate of industrial accident reduction is slowing down as the attention of the Ministry of Employment and Labor and related agencies on risk assessment systems decreased. this paper focuses on weakness of legal system for the risk assessment in recent years. A survey was conducted to identify the status and condition of the risk assessment system applying on small and medium-sized manufacturing companies. A set of questionnaires is designed to reflect various perspectives of the companies regarding the problems and solutions of the system. The results refer that differentiated instructions and support systems in response to the actual conditions of the companies are mandatory to reinforce the efficiency of risk assessment system.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2008년도 학술발표회 논문집
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• pp.805-809
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• 2008

Measurement of leaf area index (LAI) is useful for understanding rice growth, water use, and canopy light interception. The top nitrogen content(TNC) per unit area is an important quantitative index of the condition of nitrogen nutrition in rice production. The rapid and simple method of estimation of TNC, with the use of the existing nondestructive analyzing instruments chlorophyll meter SPAD-502 and plant canopy analyzer (PCA) LAI-2000, was scrutinized. Destructive measurement is time consuming and labor intensive. Our objective was to evaluate sampling procedures using the Li-Cor LI-1800, LAI 2000 plant canopy analyzer (PCA) for nondestructive estimation of rice LAI, and SPAD-502 on the Northern Plains of Cheongju. The LAI estimated by PCA tended to underestimate the LAI determined by actual measurement by about 20%. The estimation of LAI by PCA was judged to have a sufficient accuracy as a practical technique. A high positive correlation was obtained between the values of the SPAD reading and LAI. NDVI and LAI also showed a very high correlation. The values of the SPAD reading and LAI, and NDVI gave a high positive correlation. These results indicated that the method described in this study was effective as a simple and rapid method for the estimation of rice growth.

• 국제학술발표논문집
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• The 9th International Conference on Construction Engineering and Project Management
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• pp.153-161
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• 2022

Among all industries, the construction industry still remains a traditional one with low productivity due to its labor-intensive and field-dependent production system, its supplier-oriented industrial structure, and the disruption of the information flow between participants. In addition, the construction industry in South Korea has recently been required to transform itself according to social trends such as aging, the reduction of skilled workers, and the shortening of working hours, and the disaster and death rates in the industry, which are more than twice as high as those in other industries, are making it more necessary to solve chronic safety problems. Therefore, the purpose of this study is to grasp the actual condition of safety management on construction sites in South Korea and analyze cases of K-smart technology utilization for preventing safety accidents on construction sites. The study investigated and analyzed the following. First, construction sites in South Korea were analyzed by type of safety accident, by type of construction, and by construction contract amount. Second, the current status of accidents on small-sized construction sites with a high fatal accident rate and cases of safety accidents on construction sites were investigated. The results of the study are expected to contribute to the dissemination and spread of smart safety technology for not only identifying major factors in safety accidents that occur on construction sites but also preventing workers from suffering accidents.

• 수산해양교육연구
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• 제16권2호
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• pp.238-256
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• 2004

As the UN Fish Stocks Agreement has come into effect since 2001, the actual enforceable management on fish stocks in high seas has started. The Regioanl Fisheries Organizations (RFOs) have emerged as management bodies with a real responsible right to manage fish stocks. RFOs establish a strong and strict management rules providing a fishing right only to member countries and preventing all fishing activities from fishing vessels of non-member countries. In addition, RFOs have an own allocation way of fishing opportunity in their waters so that they can prevent the depletion of fish stocks. It is investigated that deep-sea fisheries have a negative impact from strengthening of RFOs' management right. As the amount of catch is reduced by the control of fishing vessel's activities, the level of fishing revenue becomes low. Moreover, as fishing costs such as oil, fishing fees, labor cost increase significantly, the condition of fishing business is getting worse as a result. In order to gain a fishing right for deep-sea fishing vessels in RFOs waters, there is no other alternative way but become a member of RFOs which are relevant to our fisheries but not joined.

• 한국재난정보학회 논문집
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• 제2권1호
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• pp.91-111
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• 2006

Technology development of modern society reduces times, costs and labor costs but demands work forces requiring expert knowledge on technology. Consequently knowledge worker becomes important. Not changing into a specialist acquired expert knowledge, people can't survive in competitive society. Therefore, the purpose of this study is to grasp the actual condition of private security industry and to examine problems. The final goal is to find the way to improve the professionalism of workers in private security industry. First. Now we must make up for the subject for examination actually and be in a triangular position and complement a professional materials for teaching. At the same time it must strengthen the education using advanced instruments seek to Total Security System. Moreover it is demanded 'institutional supplement of security guard instructors' which means job training for security guard instructor Second. On the job training which can deal with a state of emergency through 'security guard training' with a theory and an actual training must be strengthen. Also, most security guards have low understandings and interests because their ages are from 50's to 60's. Accordingly proper education must be offered to security guard. Third. Certification system of the private security guards are needed to fix the problems on an indiscreet issue and an abuse of license through deliberation on the security license. Fourth. Universities must find a new market to minimize the squandering of human resources because of oversupply and reduce the personnel. Also with enhancing the employment rate through specialized education, universities must offer an education which keeps pace with the times for not an entrance strategy but a long-term development. Effort for education of specialist will produce an improvement in business quality and improved services produce a customer satisfaction. A customer satisfaction will produce a fame of a successful company and positive images in market area. Finally the private industry will be developed by productivity improvement.

• 대한가정학회지
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• 제38권3호
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• pp.85-97
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• 2000

The goal of this study is mainly to improve the quality of life for the elderly by understanding the actual condition of the home management which includes their family relationship, family finance, and household work carried out in their domestic lives and diagnosing problems possibly restated from the condition. The result includes the following. The characteristics of rural elderly living alone: They have lived in rural area since their marriage which is over 40 years long in average, The tend to be satisfied with living apart themselves. The majority of the families are the first son in their family. In home management regard: First, in family relationship, the way the elderly in their nuclear family state communicate with their spouse is limited, and they hardly speaks together. So it is encouraged for couples to forge their own specific relationship and to plan for their odd age in their younger age. Also, they tend to be satisfied with living separated from their children, but at the same time, the closer they live in distance from their children, the more often they meet their children as well as they talk on the phone. They especially depend on their first son for offerings for ancestors and matters to occur after their death, while they get emotional support from daughters. Second, in family finance, their income varies in range from 200,000 to 3,000,000 won. In the majority f the famines, the wives are in charge of finance. The cost of living is mainly spent on flood, clothing, and housing, or the cost of offerings for ancestors if they are the head family. Third, Meanwhile, the housewives under 70 years old are positive about household work and tend to consider it pleasant for their children and their husband. Generally, the older they are, the more they dislike household labor. For example, food preparation is especially considered a major problem. Community dinning rooms, food delivery service, volunteers, and home helper and neighborhood could be help.

• 경영과정보연구
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• 제17권
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• pp.191-214
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• 2005

Recently, most enterprises are having a knowlege management boom. A number of books associated with the knowlege management are being published, countless public seminars are held, and many research councils have been organized studying it formally or informally as if not importing the system is like falling behind a fashion. However, there are not many cases that achieved success by constructing the system of knowledge management. Then, why the knowledge management is not so much effective despite so many voices wanting the change of management system and a lot of public lectures about it? I guess the reason is that most companies do not have concrete methodology. Seeing a result of a survey which reported that with spread of venture boom and successful examples being known widely, the outflow of precious human resources is accelerated and a large number of employees of conglomerates have already resigned or are considering separation from their positions, we can realize that are occurring a change which can be nearly called severance in an occupational view and an organization culture. The preference to a large enterprise or a public institution of labor is low today and the notion about a lifelong job is regarded as past remains. As for this, it could be said that the social atmosphere that pursued the stability of a job has been changed to the practical one that attaches importance to ability and pay. The way of thinking of employees has been changed while established organizations cannot satisfy their desire and this explains why important members of a company are flown out. The reason why superior human resources move to venture businesses is that they can do their likable work and also prove their ability as well as unconventional rewards. Although existing companies are trying to preserve important human resources through performance compensating stock option, temporary patching up of personnel management cannot retard the rushing wind of foundation and the outflow of labor. On the contrary, clumsy import of performance-based reward system not only fails to hire superior labor power but also can bring about a sense of incompatibility and conflicts among the remaining employees. Therefore, this thesis, focusing on how to choose, develop, and maintain the human resources, will suggest a future-aiming human resources management model of Korean enterprises after comparing and analyzing the actual condition of domestic companies and the trends of advanced corportaions.

• 현장농수산연구지
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• 제11권1호
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• pp.79-94
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• 2009

본 연구는 우리나라 식용포도 재배농가의 보호봉지 결속작업이 주로 고령의 부녀자에 의존하고 있어 향후 이들 노동력을 대체하기 위하여 기계적인 포도보호봉지 결속장치를 개발하여 생산비를 절감하고자 얻어진 결과 는 다음과 같다. 1. 포도 보호봉지 및 포장봉지 결속기 개발 가. 자동결속기 설계는 CATIA V12/AUTOCAD 2000으로 하였다. 나. 자동결속기는 포도보호봉지를 기계적으로 묶어주는 장치로 소형, 경량이어야 하며 작업 시간, 노동량을 줄어 젊은층에서부터 고령자까지 작업할 수 있도록 설계하였다. 다. 자동결속기의 총 무게는 350g이하 초경량으로 제작될 수 있도록 하였다. 라. 결속성공률은 99%이상이 되도록 하였다. 마. 자동결속기의 결속롤과 커터, 배터리, 모터 등의 구조를 스테플러와 같은 가트리지형태로 개발하였다. 바. 카트리지 핀은 C-ring 28mm형으로써 길이는 500mm정도로 포도보호봉지 및 제과·제빵포장봉지를 결속할 수 있도록 제작하였다. 사. 작업시 포도나무 포도넝쿨 등 장애물의 영향을 받지 않도록 디자인을 설계, 제작하였다. 2. 포도보호봉지 결속작업시스템 포장실증시험 가. 자동결속기 시작기를 이용한 포도 보호 봉지결속으로 시기별 과병장, 과식품질이 무처리에 비하여 현저히 높았다. 나. 포도보호봉지 결속작업은 숙련자의 경우 1일 3,000개내외 씌우는 반면 초보자는 1,200개(37%)정도로 크게 떨어졌다. 다. 포도 보호봉지 자동결속기를 이용한 작업효율성은 102%로써 숙련자의 노동력을 대체할 수 있을 것으로 판단되었다. ∘ 1단계 : 232.5%(앞치마에서 보호봉지를 꺼내어 포도에 씌움) ∘ 2단계 : 60.7%(씌운 보호봉지 주름을 잡음) ∘ 3단계 : 104.7%(주름이 잡힌 상태에서 결속) ∘ 4단계 : 102% 라. 포도 보호봉지 결속부위의 둘레(크기)를 조사한 바 관행보호봉지결속작업(수작업)에서는 손으로 철사핀을 감기 때문에 평균 4.6cm이었으며 자동결속기의 결속롤(핀)은 5.3cm가 되어 다소 줄이는 것이 정밀성이 높을 것으로 판단되었다. 마. 수확시 과실 품질(과중, 과방크기-과장, 과폭, 가용성고형물, 산함량)을 조사한 결과 처리한 차이가 인정되지 않았다. 바. 자동결속기를 이용한 포도보호봉지 결속작업처리에서 포도의 열과(터진포도)와 이병율 차이에는 관행방법과 차이가 없었다.

• 농약과학회지
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• 제12권4호
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• pp.414-420
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• 2008

우리나라 최대의 곶감 및 감 생산지인 경북 상주지역 감 재배농가의 병해충 관리 실태와 과원관리 실태를 알아보기 위하여 2007년과 2008년 감 재배 농가를 대상으로 설문 조사를 수행하였다. 감 경작자의 91.1%가 50대 이상이었으며 재배농가의 94.7%가 '상주둥시'를 재배하고 있었다. 58.4%의 경작자가 병에 의한 수확량 감소가 가장 심각하며 68.1%가 탄저병(Colletotrichum gloeosporioides)에 의한 피해가 가장 심하다고 하였다. 해충은 깍지벌레류의 피해가 심하다고 응답한 농가가 60.2%로 가장 많았다. 병해충 관리에 관한 지식은 경험에 의존하는 비율이 37.2%였으며 약제 선정은 농약 판매상의 권유가 48.7%로 가장 많았다. 년 평군 방제 횟수는 $3{\sim}5$회가 54%로 가장 많았으며 방제력을 기록하는 농가는 17.7%에 불과하였다. 병해충 관리의 가장 큰 문제점은 병해충 지식의 부족이라는 응답자가 60.2%로 가장 많았으며 과원 관리시 병해충 방제 비용이 가장 많이 들어간다는 농가가 52.2%로 가장 많았다. 감 재배농가의 66.4%가 타 작물과 혼작을 하고 있었으며 콩과 고추를 혼작하는 농가가 가장 많았다. 감 재배와 곶감 가공을 겸하는 농가가 44.2%였으며 곶감 가공 과정중 가장 큰 애로사항은 인력부족이 54.5%로 가장 많았다.