• Title/Summary/Keyword: raising environment

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Development of Raising Device for Greenhouse Column Using a Pneumatic Cylinder (공압실린더를 이용한 온실기둥 상승장치 개발)

  • Lee, Hyun June;Park, Eun Mi;Shin, Dong Chang;Choe, Jung Seob;Kim, Tae Wook
    • Journal of Bio-Environment Control
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    • v.27 no.3
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    • pp.206-212
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    • 2018
  • As many consumers prefer good quality food, farms have used various facilities to cultivate products for satisfying their desires. Among them, the most representative facilities are plastic and glass multi-span greenhouse. The height of both plastic greenhouse and glass greenhouse is around three meters high in Korea. As a result, the crop productivity is limited. The solution is to increase the height of the greenhouses to improve the greenhouses' environment. The device for raising columns consists of a stop device, a pneumatic cylinder, and a vertical member. Pneumatic cylinders were designed with a diameter of 160 mm and a stroke length of 50 mm, taking into consideration the safety factor of 1.5. In addition, the air flow was controlled by nozzle to achieve a time of less than 30 seconds per stroke. It was calculated that $21.5L{\cdot}min^{-1}$ of air was needed to complete in less than 30 seconds. Accordingly, the diameter of the nozzle is designed to be 0.5 mm. When the pressure was 0.9 MPa, the average raising force was 13,805N, which was close to the calculated value of 15,612N. The field test results show that any inconsistency in the row columns was not generated. and that it is considered applicable to the actual glass and plastic greenhouses.

A Study on the Architectural Planning of Integrated Secondary School (통합운영 중등학교 건축계획에 관한 연구)

  • Seo, Sang-Hyun
    • The Journal of Sustainable Design and Educational Environment Research
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    • v.3 no.2
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    • pp.39-49
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    • 2003
  • This study purpose is extract on the architectural principles and architectural planning direction for Integrated Secondary School. The integrated secondary school has an expectation of the total education environment in which has some problem as regional, teaching, treatment, establishment equipment part because of the based relative establishments are abolished. The expectations are the education effective rising, the reduce of the responsibility of the teacher, a smooth teacher placing and saving the educating estimate. As the new education course propulsion is raising the school and students discretion and expanding the way of educating, being close to the course of studies, the integrated operation is earnestly needed and such as these versatile background the small school will keep on getting integrated. Investigate about the senses of the manager and teachers, so after these reserch I've concluded these things below about the integrated secondary school.

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The Effects of Coloring Admixture on the Material Properties of Color Concrete (착색재가 칼라콘크리트의 물성에 미치는 영향)

  • 이성로;김종식
    • Proceedings of the Korea Concrete Institute Conference
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    • 2000.10a
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    • pp.150-154
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    • 2000
  • Coloring admixture is used for take color inside and outside of mortar and concrete, differently form pigment and spray paint take color limited surface. In our country, Using the coloring admixture is very slight and regulation is not yet about it. But that is expected the increase with raising the standard of living. Especially it is used to civil structure like dam and seawall for the environment harmony. Then we observe, in this experiment, the effect of coloring admixture on the material properties of color concrete and propose the suitable mix-proportion of color concrete.

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How to Finance Fashion Venture Business at Start-up and Growing Stages

  • Kim, Moon-Sook
    • The International Journal of Costume Culture
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    • v.3 no.2
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    • pp.88-99
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    • 2000
  • Venture industry is becoming a driving force of Korean economy in the digital age of the 21 st century. The success of venture business depends on innovative technology, capital investment, and optimal environment providing industrial flexibility. Although venture business is starting to settle down in Korea, many barriers and challenges still remain. The current study analyzes the present status of venture business including fashion business and issues concerning the venture fund raising and provides prospective views to promote and improve venture industry in Korea.

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Ergonomic Problems and Their Improving Measures in Office Environment of General Hospitals

  • Kee, Dohyung
    • Journal of the Ergonomics Society of Korea
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    • v.34 no.2
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    • pp.135-143
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    • 2015
  • Objective: The purposes of this study are to investigate ergonomic problems and to propose their improving measures in office environment of big general hospitals. Background: Office tasks have varying risk factors of work-related musculoskeletal disorders (WMSDs). The first symptom resulted from the office work was recognized as an occupational disease in Korea in 1986. Although the symptoms have increased since its first recognition, there has been few study on the effect of office work environment settings. Method: First, the author took pictures of working scenes performed in three big university hospitals. Next, the pictures were analyzed in view point of ergonomics. Based on the analysis, their improving measures were proposed for reducing work stress. Results: The results showed that most physical office environment settings such as dimensions of tables/desks and chairs, leg room, thigh, knee and foot clearances, and chairs used did not satisfy the ergonomically recommended design guidelines. In addition, some clerks placed personal belongings under their desks, put monitors in high position and did not lean against the backrest of chairs in seated tasks, which resulted in poor working postures of leg, back, neck etc. It is recommended that the hospital management should provide their clerks with ergonomically designed office furniture and continuously perform ergonomics training program for raising clerks' recognition for office ergonomics. Conclusion: Most office environment settings investigated in this study were not in good condition in view point of ergonomic design for the settings. Application: It would be useful as basic data for establishing ergonomically good office environment in hospitals.

A Study on the Cognitive Structure of Green Environment of Traditional Urban Residential Areas (도시형 한옥지구의 녹환경 인식구조에 관한 연구 -도시 주택지 녹환경에 관한 연구(I)-)

  • 정덕규;김준식;김익환
    • Journal of the Korean housing association
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    • v.12 no.4
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    • pp.153-161
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    • 2001
  • This paper is to clarify a cognitive structure of green environment in the traditional urban residential areas. The following is the result of analysis; 1) According to the survey of created actual condition of the green environment, the main space was consisted of court(74%). The percentage of preference locations for green environment at the court and the alley are 71, 60 respectively. The main reason to creat green environment resulted admiration and enjoyment. 2) The degree of $\ulcorner$agreeableness$\lrcorner$ and $\ulcorner$nobleness$\lrcorner$ of the house were increased by creating green environment in a house, and the degree of $\ulcorner$neighborhood$\lrcorner$ and $\ulcorner$familarity$\lrcorner$ were increased by creating green environment out side of house. 3) According to the analysis of a correlation between the degree of satisfaction and the image, $\ulcorner$agreeableness$\lrcorner$ has an interrelation with all factors of image. Therefore, the creating of $\ulcorner$agreeableness$\lrcorner$ is a main problem for raising the whole image of the residential areas.

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A Basic Study on Maritime English Education and the Need for Raising the Instructor Profile

  • Davy, James G.;Noh, Chang-Kyun
    • Journal of Navigation and Port Research
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    • v.34 no.7
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    • pp.533-538
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    • 2010
  • English is the accepted common working language of the maritime world and being competent in its use is essential to the safety of ships, their crews and the marine environment. This paper is a response to the urgent need to find a suitable solution to the problem of providing maritime students with quality instruction in Maritime English. This paper will show what type of English instructor is best suited to help cadets have at least a basic grasp of Maritime English communication, with a view to possessing the level required by STCW 95 within the shortest time. It presents ways that maritime institutes can develop their own qualified or 'marinated' English Instructors and what qualifications should be required. It is concluded that by further essential research, interviews and questionnaires etc., the language needs of the university and shipping industry in Korea as a whole can be clearly verified. By examining such data, the present language education systems can be evaluated as to efficacy and relevance, allowing the establishment and implementation of 'best practice' within the training institute. This will result in making excellent informed decisions and choices about how best to improve the language competencies of graduating cadets, thereby creating the catalyst for the success of future seafarers whilst raising the image of the institute and Korean shipping worldwide.

The Debate on the Environmental Degradation during the Pre- and Post- Conquest in America (콜럼부스 발견 전후의 아메리카대륙 환경파괴에 대한 관점)

  • Park, Jung-Jae
    • Journal of the Korean association of regional geographers
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    • v.15 no.6
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    • pp.707-719
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    • 2009
  • A lot of different opinions have intensified the debate on environmental destruction during the pre- and post- conquest. Some respect Indian's way of living in harmony with nature, while others blame Indians for altering the environment. Also, some argue that Europeans' cattle raising resulted in highly modified ecosystem, whereas others believe that the ecosystem was not much affected by cattle raising due to their transhumance. This kind of argument shows us the point we need to consider as trying ecological restoration. If we want to find an ideal target for ecological restoration, if we like to figure out the time when human being and nature were really in harmony, advanced paleoenvironmental studies are necessary.

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An Analysis of Relationship between the Level of Satisfaction of Domestic Products and Purchase Intention of Imported Organic Products (국내산 친환경농산물 만족도와 수입산 유기농산물 구입의향 관계 분석)

  • Han, Jae-Hwan;Jeong, Hak-Kyun
    • Korean Journal of Organic Agriculture
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    • v.29 no.2
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    • pp.159-171
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    • 2021
  • The purpose of this paper is to analyze the relationship between the level of satisfaction of domestic Environment-friendly agricultural products and purchase intent of imported organic products. To accomplish the objective of the study a consumer survey was administered for quantitative analysis regarding consumption patterns. The bivariate probit with sample selection model was employed for empirical analysis on the relationship. The estimation results showed that to increase continuously the consumption, it is necessary to improve the quality satisfaction compared to the price, and that it is also necessary to increase the reliability of the certification system and the awareness that the consumption is helpful for health promotion to increase the quality satisfaction compared to price. In addition, it was concluded that in order to induce the purchase of domestic organic products rather than imported organic products, efforts to improve the safety of domestic products, remove the risk of residual pesticides, and increase the reliability of domestic products compared to imported products are needed. Therefore, to reduce the proportion of purchases of imported organic products and increase the consumption of domestic products, raising awareness that the consumption is conducive to health promotion, enhancing the safety of domestic products, and providing accurate information on the safety of imported products are required.