• Title/Summary/Keyword: Production practice

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The Effect of Seedlings Density in Nursery on Biomass Production and Growth Characteristic of Styrax obassia (생육밀도가 쪽동백나무 유묘의 물질생산량과 생장특성에 미치는 영향)

  • Choi, Jeong-Ho;Yoo, Se-Kuel;Lee, Soo-Won;Oh, Seok-Gui
    • Journal of Bio-Environment Control
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    • v.16 no.3
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    • pp.217-221
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    • 2007
  • To provide the basic data essential for developing varieties of broad-leaved tree, the study investigated the utmost growth requirement for the growth characteristic and biomass production in accordance with planting density of Styrax obassia. The planting density of seedling can be a significant factor in contributing growth of seedling for tree growing in general. While growth of tree according to $1m^2$ planting density of Styrax obassia showed an excellent growth in tree height and the root collar diameter from $49no./m^2$, those low planting density showed decreased tendency with tree height growth while increasing the root collar diameter growth. As similar to the growth characteristic, the biomass production showed significant and statistic difference in $49no./m^2$, showing high volume of biomass production which is $3.12{\pm}0.80g$ compare to other processing section and high figure with T/R ratio which is 1.59. The special trait of photosynthetic also showed relatively high photosynthetic rate in $49no./m^2\;and\;64no./m^2$ of Styrax obassia and as the density increase, photosynthetic efficiency decreased. The plant showed stable and physiological planting pattern, displaying the best photosynthetic rate, which was the final metabolism through reserving proper space in the growth and development environment condition. This obstacle of required space essential for growth substantially deteriorated planting and ultimately, it demonstrated lower tendency of photosynthetic rate, which is the highest level of metabolism.

Development of the Practical and Adaptive Die of Fixed Stripper Type for Marine Part Sheet Metal Working(part 1)

  • Sim, Sung-Bo;Song, Young-Seok;Sung, Yul-Min
    • Proceedings of the Korea Committee for Ocean Resources and Engineering Conference
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    • 2000.04a
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    • pp.35-39
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    • 2000
  • The piercing and blanking of thin sheet metal working is specified division in press die design and making. In order to prevent the detects, the optimum design of the production part, strip process layout, die design, die making and try out etc. are necessary the analysis of effective factors. For example, theory and practice of metal shearing process and its phenomena, die structure, machine tool working for die making, die materials and its heat treatment, metal working in industrial and its know how etc. In this study, we analyzed whole of data base, theoretical back ground of metal working process, and then performed the progressive die tryout with the screw press. This study regards to the aim of small quantity of production parts press working. Part 1 of this study reveals with production part and strip process layout design.

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Foodservice employees′ Sanitation and Hygiene Practice in School Foodservice (중ㆍ고등학교 급식종사자들의 위생관련 업무 수행도 분석)

  • 홍완수;윤지영
    • Korean journal of food and cookery science
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    • v.19 no.4
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    • pp.403-412
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    • 2003
  • The purpose of this study was to develop methods for foodservice employees to perform by measuring their levels of sanitation and hygiene practices. The employees' sanitation and hygiene competency list for school foodservice was developed on the basis of the job standardization. The competency list was divided into three parts; (1) before starting the work, (2) during the work and (3) after the work. The levels of the employees' sanitation and hygiene practices were evaluated by dietitians and by the employees themselves. Most schools had conventional foodservice systems (83.4%), which were operated by contract management (94.8%). It was found that the highest practice level related to sanitation and hygiene before starting work, with the lowest levels observed after work. The item related to the cleaning and sanitizing of dishes had the lowest practice level score. Employees perceived their sanitation and hygiene practice after work to be worse than before starting and during work. The items of ″Clean and sanitize all large stationary equipment after every use, and record equipment monitoring chart″ and ″Do not clean dishes and utensils in production area″ had the lowest scores by employees. The scores of the employees were similar to the perception of the dietitians.

The Implications of Feminist Epistemology for Knowledge Production in Social Welfare (사회복지연구를 위한 페미니스트 인식론의 비평과 함의)

  • Sung, Jung-Suk;Lee, Na-Young
    • Korean Journal of Social Welfare
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    • v.62 no.2
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    • pp.349-373
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    • 2010
  • The purpose of this paper is to critically analyze the way of knowledge production in social welfare and to graft feminist epistemology to the discipline of social welfare. To put it more concretely, as analyzing the epistemological and methodological issues appeared in the articles in "orean Journal of Social Welfare", this study examines the meanings of feminist epistemology and its implications to research and practice in social welfare. From its onset, feminist research criticized the 'mainstream' ways of conceptualizing knowledge construction via research conducted upon a positivist epistemological position. Particularly, western feminists have problematized the androcentric bias embedded within the so-called 'social sciences' that we have taken for granted as 'scientific,' 'objective,' and 'neutral,' and attempted to redirect and reformulate the way of knowledge production with new concepts of 'strong objectivity,' 'partial/situated knowledge,' and 'strong reflection.' We believe that the implications of feminist epistemology to enable us to reflect the power relationship between subject and object, I and Other, and the researcher and the researched will contribute to recover the original vision of social welfare as critical theory and liberating practice in social work.

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Current situation and future prospects for beef production in Europe - A review

  • Hocquette, Jean-Francois;Ellies-Oury, Marie-Pierre;Lherm, Michel;Pineau, Christele;Deblitz, Claus;Farmer, Linda
    • Asian-Australasian Journal of Animal Sciences
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    • v.31 no.7
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    • pp.1017-1035
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    • 2018
  • The European Union (EU) is the world's third largest producer of beef. This contributes to the economy, rural development, social life, culture and gastronomy of Europe. The diversity of breeds, animal types (cows, bulls, steers, heifers) and farming systems (intensive, extensive on permanent or temporary pastures, mixed, breeders, feeders, etc) is a strength, and a weakness as the industry is often fragmented and poorly connected. There are also societal concerns regarding animal welfare and environmental issues, despite some positive environmental impacts of farming systems. The EU is amongst the most efficient for beef production as demonstrated by a relative low production of greenhouse gases. Due to regional differences in terms of climate, pasture availability, livestock practices and farms characteristics, productivity and incomes of beef producers vary widely across regions, being among the lowest of the agricultural systems. The beef industry is facing unprecedented challenges related to animal welfare, environmental impact, origin, authenticity, nutritional benefits and eating quality of beef. These may affect the whole industry, especially its farmers. It is therefore essential to bring the beef industry together to spread best practice and better exploit research to maintain and develop an economically viable and sustainable beef industry. Meeting consumers' expectations may be achieved by a better prediction of beef palatability using a modelling approach, such as in Australia. There is a need for accurate information and dissemination on the benefits and issues of beef for human health and for environmental impact. A better objective description of goods and services derived from livestock farming is also required. Putting into practice "agroecology" and organic farming principles are other potential avenues for the future. Different future scenarios can be written depending on the major driving forces, notably meat consumption, climate change, environmental policies and future organization of the supply chain.

SPECIAL Edition - [HACCP 기준원 기획연재] 선행요건프로그램의 작성

  • Lee, Gyeong-Sun
    • Monthly Duck's Village
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    • s.83
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    • pp.45-46
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    • 2010
  • 농장에서 효과적인 HACCP시스템의 적용을 위해서는 HACCP을 적용함에 있어서 토대가 되는 "선행요건프로그램(Pre-requisite program, PP)" 즉, 자체위생관리기준(Sanitation Standard Operating Procedures, SSOP)과 우수 농장관리기준(Good Agricuiture / Production Practice, GAP/GPP)이 적절히 운영되어야 한다는 것을 지난호에서 기술한 바 있다. 이번호부터 선행요건프로그램에 대해서 좀 더 자세히 알아보기로 하자.

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Effect of Raw Material Properties on Growth Characteristics of Broad-Leaved Container Seedlings (상토 조성이 활엽수 용기묘의 생장특성에 미치는 영향)

  • Lee Soo-Won;Choi Jeong-Ho;Yoo Se-Kuel;Kim Suk-Kuwon;Bae Jong-Hyang;Kyo Han-Suk
    • Journal of Bio-Environment Control
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    • v.15 no.3
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    • pp.244-249
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    • 2006
  • This study examined the growth characteristics of broad-leaved container seedlings of Stewartia pseudocamellia, Tilia manshurica and Chionanthus retusus in relation to the raw material properties of the container medium in a green house for 4 months in order to develop optimum container medium for broad-leaved container seedlings. Among the container media used, the high level of the height growth and root collar diameter growth of broad-leaved container seedlings of Stewartia pseudocamellia, Tilia manshurica, Chionanthus retusus was found in the container media with relatively more cocopeat or peatmoss, and the dry matter production of the aerial part and the subterranean part. Also, concerning physiological characteristics, the photosynthetic rate of broad-leaved container seedlings increased in proportion to the volume of cocopeat and peatmoss in the container media. The effect of container media on the growth of broad-leaved container seedlings needs continuous study on the irrigation and fertilization programs along with the study on physiological characteristics including growth characteristics, biomass production and photosynthesis.

Study of 'Education-Training-Certificate of Qualification' Design for the Fashion Accessories Production Based on the National Competency Standards (패션소품생산 분야의 국가직무능력표준 기반 교육훈련자격 설계에 관한 연구)

  • Suh, Seunghee;Lee, Shin-Young
    • Journal of the Korean Society of Costume
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    • v.65 no.2
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    • pp.125-143
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    • 2015
  • This study is to propose an 'education-training-certificate of qualification' design of fashion accessories production, which can be applied to education in universities and individuals. It is based on the National Competency Standards (NCS), which was developed through the '2013 National Competency Standards Development Project' for the fashion accessories production. FGI (Focus Group Interviews), which is a research methodology, is carried out on target groups of educational experts and specialists in the field of fashion accessories production. Through this, five courses were suggested; first, 'fashion accessories design' course was proposed for the education and training of 'design development' and 'development of raw materials'. Secondly, 'fashion product production' course was proposed for the education and training of 'production of samples'. Thirdly, 'fashion product manufacture and planning' course was proposed for the competency element units: 'calculation of cost', 'determination of mass production model and price', 'planning of the main manufacturing process' and 'ordering of raw materials'. Lastly, 'mass production of fashion products' course and the 'field practice of fashion product manufacture' course were proposed for the competency element units: 'planning for mass production', 'preparation for mass production', 'mass production' and 'inspection of completed products'. In addition, a new certificate of 'technician of fashion accessory production' was proposed in order to test qualified skills for the fashion accessories production. The test is composed of a written examination of short-answer questions, technical drawing and production.

Knowledge Based Simulation for Production Scheduling (생산일정계획을 위한 지식 기반 모의실험)

  • La, Tae-Young;Kim, Sheung-Kown;Kim, Sun-Uk
    • Journal of Korean Institute of Industrial Engineers
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    • v.23 no.1
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    • pp.197-213
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    • 1997
  • It is not easy to find a good production schedule which can be used in practice. Therefore, production scheduling simulation with a simple dispatching rule or a set of dispatching rules is used. However, a simple dispatching rule may not create a robust schedule, for the same rule is blindly applied to all internal production processes. The presumption is that there might be a specific combination of appropriate rules that can improve the efficiency of a total production system for a certain type of orders. In order to acquire a better set of dispatching rules, simulation is used to examine the performance of various combinations of dispatching rule sets. There are innumerable combination of rule sets. Hence it takes too much computer simulation time to find a robust set of dispatching rule for a specific production system. Therefore, we propose a concept of the knowledge based simulation to circumvent the problem. The knowledge based simulation consists of knowledge bases, an inference engine and a simulator. The knowledge base is made of rule sets that is extracted from both simulation and human intuition obtained by the simulation studies. For a certain type of orders, the proposed system provides several sets of dispatching rules that are expected to generate better results. Then the scheduler tries to find the best by simulating all proposed set of rules with the simulator. The knowledge-based simulator armed with the acquired knowledge has produced improved solutions in terms of time and scheduling performance.

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