• 제목/요약/키워드: intensive culture

검색결과 247건 처리시간 0.026초

Study on the Measurement of Management Performance based on BSC: Examining Japanese Food Manufacturers

  • Park, Chul-Ju;Jeong, Tae-Seok
    • 유통과학연구
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    • 제10권11호
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    • pp.11-20
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    • 2012
  • Purpose - This study attempts to measure the management performance of a food manufacturer using the BSC as one of the main business management techniques used to achieve the vision of a corporation. Research design, data, methodology - The measurement of business performance of a Japanese food manufacturer was conducted from four perspectives of BSC. Matsui (2005) developed the 'Cross-analysis chart'. Results - First, there were many cases where a minor wastage of raw materials was related to increasing costs. Second, the food manufacturer should try to recover the investment cost through significantly increasing the rate of the facility's operations. Third, reducing personnel expenses could be an important issue in labor-intensive manufacturing. Fourth, customer management was very important in the food manufacturing business. Finally, the food manufacturer should actively consider proposals influencing the food culture to secure high profits in the future. Conclusions - There were many limitations in applying these results to Korean food manufacturers, as this study applied to and analyzed the results in the context of the Japanese food manufacturer.

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종합병원 간호사의 부서별 사회심리적 업무환경이 직무만족에 미치는 영향 (Impacts of Psychosocial Work Environment on Nurses' Job Satisfaction Based on the Type of Hospital Departments)

  • 원효진
    • 보건의료산업학회지
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    • 제12권1호
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    • pp.47-56
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    • 2018
  • Objectives : The purpose of this study was to compare the characteristics of nursing work environments based on department type and to investigate the relationship between work environment and job satisfaction. Methods : The participants were 420 nurses from the ward, emergency room, intensive care unit, and operation room. The data were analyzed by descriptive statistics, ANOVA, Scheffe's test, and multiple regression test using the SPSS Win. 18.0 program. Results : The results were as follows: There was a significant difference in possibilities for development, meaning of work, recognition(reward), role clarity, and social community at work based on department type. The factors that influenced job satisfaction were influence, meaning of work, recognition(reward), role conflicts, and quality of leadership and these differed based on department type. Conclusions : The results of this study indicate that nursing work environments vary based on the type of hospital department. Therefore, it is necessary to develop diverse strategies for human resource management considering the type of department.

혁신저항의 결정요인에 관한 이론적 고찰 (Theoretical review on the determinants of innovation resistance)

  • 안병덕;안관영
    • 대한안전경영과학회:학술대회논문집
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    • 대한안전경영과학회 2012년 춘계학술대회
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    • pp.107-116
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    • 2012
  • While technological development being rapid, competition among companies have been very intensive over the world. To hold their competitive power or make sustainable development, it is very imperative for them to attempt innovation. But almost of all innovations were followed by people's resistance to change, and many innovation appeared to be not successful. The objective of this paper is to review the topic of resistance to change in the related literature, and look at the relationship between innovation resistance and many variables like CEO's personality, employee's personality, organizational culture, and defensive behavior.

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양식장 이용에 따른 생산성에 관한 연구 (Productivity of Aquaculture Facility Utilization)

  • 어윤양
    • 수산경영론집
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    • 제45권2호
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    • pp.85-95
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    • 2014
  • Fish stocking is important element of land-based aquaculture management. To maintain constant stocking rate considering biological and economic condition is a convenient strategy in intensive aquaculture. This study is aimed to analyze the effect of over-stocking(more than aquaculture capacity) for certain periods of time. This study make the mathematical decision making model that finds the value of decision variable to minimize cost that sums up the water pool usage cost and sorting cost under critical standing corp constraint. The proposed mathematical decision making model was applied to 12 sample combination of sorting cost and the number of fish on the Oliver flounder culture farms. If a immature fish can be sold for high price than farming cost, restricted over-stocking resulted in a improvement of economic performance. When extensive comparable biological and market data become available, analysis model can be widely applied to yield more accurate results.

Development of Miniaturized Culture Systems for Large Screening of Mycelial Fungal Cells of Aspergillus terreus Producing Itaconic Acid

  • Shin, Woo-Shik;Lee, Dohoon;Kim, Sangyong;Jeong, Yong-Seob;Chun, Gie-Taek
    • Journal of Microbiology and Biotechnology
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    • 제27권1호
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    • pp.101-111
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    • 2017
  • The task of improving a fungal strain is highly time-consuming due to the requirement of a large number of flasks in order to obtain a library with enough diversity. In addition, fermentations (particularly those for fungal cells) are typically performed in high-volume (100-250 ml) shake-flasks. In this study, for large and rapid screening of itaconic acid (IA) high-yielding mutants of Aspergillus terreus, a miniaturized culture method was developed using 12-well and 24-well microtiter plates (MTPs, working volume = 1-2 ml). These miniaturized MTP fermentations were successful, only when highly filamentous forms were induced in the growth cultures. Under these conditions, loose-pelleted morphologies of optimum sizes (less than 0.5 mm in diameter) were casually induced in the MTP production cultures, which turned out to be the prerequisite for the active IA biosynthesis by the mutated strains in the miniaturized fermentations. Another crucial factor for successful MTP fermentation was to supply an optimal amount of dissolved oxygen into the fermentation broth through increasing the agitation speed (240 rpm) and reducing the working volume (1 ml) of each 24-well microtiter plate. Notably, almost identical fermentation physiologies resulted in the 250 ml shake-flasks, as well as in the 12-well and 24-well MTP cultures conducted under the respective optimum conditions, as expressed in terms of the distribution of IA productivity of each mutant. These results reveal that MTP cultures could be considered as viable alternatives for the labor-intensive shake-flask fermentations even for filamentous fungal cells, leading to the rapid development of IA high-yield mutant strains.

실험실에서 사육한 말똥성게 Strongylocentrotus pulcherrimus (A. Agassiz)의 식성과 성장 (Feeding Habits and Growth of the Sea Urchin, Strongylocentrotus pulcherrimus (A. Agassiz) Reared in the Laboratory)

  • 허성범
    • 한국양식학회지
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    • 제1권2호
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    • pp.121-133
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    • 1988
  • 고가의 식품으로 이용되는 말똥성게의 생식소의 소비가 증가됨에 따라 연안의 말똥성게 자원은 계속 감소하고 있어 이 종류에 대한 양식 기술개발은 중요한 연구 과제이다. 따라서 본 연구는 말똥성게를 실내에서 양식할 경우 먹이로서 신선한 해조류를 대치할 수 있는 육상식물을 조사하였다. 해조류 6종류 (미역, 구멍갈파래, 지충이, 개지누아리, 모자반, 곰피), 육상식물 5종류 (시금치, 상치, 무우잎, 배추, 케일), 동물성 먹이 2종류 (바지락. 쇠고기)를 대상으로 말똥성게의 선택적 및 비선택적 식성과 영양 효과를 비교한 결과, 말똥성게의 먹이로서 육상 식물의 이용이 가능하였다. 미역을 공급한 경우 말똥성게의 체중의 성장은 가장 높았으나 생식소지수는 시금치, 무우잎 또는 상치를 공급할 경우가 미역의 경우보다 더 높았다. 시금치와 무우잎의 공급은 생식소가 성장하는 계절에 적합하고, 각이 성장하는 시기에는 상치 또는 배추가 효과적일 것으로 판단된다. 특히 무우잎은 식용으로 이용하지 않고 버려지므로 무우잎을 이용한 말똥성게의 양식은 매우 경제적일 것이다.

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시각장애인도서관 직원들의 조직몰입에 영향을 미치는 요인에 관한 연구 (A Study on the Influential Factors on the Organizational Commitment of Employees Working in Libraries for the Visually Impaired)

  • 박성호;조미아
    • 한국비블리아학회지
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    • 제32권3호
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    • pp.285-304
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    • 2021
  • 이 연구는 시각장애인도서관 직무에 종사하는 직원들의 조직몰입에 영향을 미치는 요인을 파악하는데 그 목적이 있다. 이를 위해 조직몰입에 영향을 주는 요인으로는 개인적 배경, 감정노동, 역할, 직무특성, 조직문화, 조직공정성으로 선정하였다. 선정된 요인들은 양적 검증에 질적 검증을 보완한 혼합연구 방법을 사용하였으며, 양적 검증은 수집된 설문지를 대상으로 통계와 분석을 진행하였다. 질적 검증으로는 희망하는 현직자와 전문가를 대상으로 설문지 내용을 면담지로 재구성한 후에 면담을 실시하였다. 연구 결과를 요약하면 감정노동, 직무특성, 조직문화, 조직공정성이 직원들의 조직몰입에 영향을 미치는 요인으로 분석되었다. 직무몰입을 향상시키기 위해서는 담당업무에 대한 조직의 간섭을 최소화하고 재량권 확대를 통한 자율성 보장해 주어야 하며, 직원들의 감정노동에 대해 조직 차원의 집중 관리와 업무성과에 대한 공정한 절차를 거치는 것이 매우 중요하다.

강화 지역의 인삼 재배 역사 (The history of ginseng cultivation in Ganghwa area)

  • 이성동
    • 인삼문화
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    • 제2권
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    • pp.9-16
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    • 2020
  • 우리나라 한방 의서 중 인삼의 첫 기록은 고려 시대 임시 수도인 강화 도읍기 때 강화도에서 출간된 향약구급방에 나타나 있다. 강화지역에서 인삼재배의 시작은 1100년경부터 시작되었을 것으로 사료 된다. 본격적인 인삼재배 시작은 1920년경 개성인삼조합의 특별구역으로 지정되면서부터였고, 1950년 한국전쟁 시작 때까지 계속되었다. 1953년 휴전 이후부터 강화지역에서 인삼재배가 다시 시작되었다. 1967년에 강화삼업조합이 창립되었으며, 이때 재배 면적이 약 200ha(60만평)이었고, 1974년에 약 900ha(270만평)으로 증가 되었다. 따라서 강화는 1970년대 중반기에 우리나라 전국 시, 군 가운데 인삼재배 면적과 생산량이 가장 높은 지역이였다. 강화지역에서 생산되는 인삼은 주로 6년근이고, 홍삼원료로 사용되어 국내 인삼생산지로 더욱 유명하게 되었고, 그 명성이 현재도 계속되고 있다.

Characterizations of Cell Lineage Markers in the Bone Marrow Cells of Recloned GFP Pigs for Possible Use of Stem Cell Population

  • Park, Kwang-Wook;Choi, Sung-Sik;Lee, Dong-Ho;Lee, Hwang;Choi, Seung-Kyu;Park, Chang-Sik;Lee, Sang-Ho
    • Reproductive and Developmental Biology
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    • 제35권1호
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    • pp.23-31
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    • 2011
  • Two piglets and one juvenile pig were used to investigate closely what types of cells express green fluorescent protein (GFP) and if any, whether the GFP-tagged cells could be used for stem cell transplantation research as a middle-sized animal model in bone marrow cells of recloned GFP pigs. Bone marrow cells were recovered from the tibia, and further analyzed with various cell lineage markers to determine which cell lineage is concurrently expressing visible GFP in each individual animal. In the three animals, visible GFP were observed only in proportions of the plated cells immediately after collection, showing 41, 2 and 91% of bone marrow cells in clones #1, 2 and 3, respectively. The intensity of the visible GFP expression was variable even in an individual clone depending on cell sizes and types. The overall intensities of GFP expression were also different among the individual clones from very weak, weak to strong. Upon culture for 14 days in vitro (14DIV), some cell types showed intensive GFP expression throughout the cells; in particular, in cytoskeletons and the nucleus, on the other hand. Others are shown to be diffused GFP expression patterns only in the cytoplasm. Finally, characterization of stem cell lineage markers was carried out only in the clone #3 who showed intensive GFP expression. SSEA-1, SSEA-3, CD34, nestin and GFAP were expressed in proportions of the GFP expressing cells, but not all of them, suggesting that GFP expression occur in various cell lineages. These results indicate that targeted insertion of GFP gene should be pursued as in mouse approach to be useful for stem cell research. Furthermore, cell- or tissue-specific promoter should also be used if GFP pig is going to be meaningful for a model for stem cell transplantation.

Morphological Specificity in Cultured Starry Flounder Platichthys stellatus Reared in Artificial Facility

  • Kang, Duk-Young;Lee, Jong-Ha;Kim, Won-Jin;Kim, Hyo-Chan
    • Fisheries and Aquatic Sciences
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    • 제15권2호
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    • pp.117-123
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    • 2012
  • The starry flounder Platichthys stellatus, like all flatfish, exhibits conspicuous lateral asymmetry in numerous traits, most obvious of which is the migration of one eye to the other side of the head during metamorphosis. Additional changes related to eye migration include asymmetrical pigmentation, and a behavioral shift from larvae that exhibit upright, open-water swimming to juveniles and adults that lie on the ocean floor, eye side up. However, the morphology of these juveniles has been quite plastic in recent years, a phenomenon which is thought to be related to a diverse suite of semi-intensive and intensive larviculture methods. The cause of morphological abnormalities in the farmed flatfish is poorly understood. In the present study, we observe the features of morphological specificity and abnormality of immature fish (mean total length 23 cm) and survey the occurrence frequency of the specificity and abnormality of juvenile (mean total length 6.70 cm) in artificial culture facility. We find 2 types of abnormality (e.g., albino in ocular side and hypermelanosis in blind side) and 1 type of specificity (e.g., lateral polymorphism). These considerably differ from normal individuals (has sinistral eye and pigmented on only one side) by several characteristics (dextral eye, ocular side albinism, blind side hypermelanosis). The incidences of albinism, hypermelanosis, and body reversal are $10.1{\pm}2.56%$, $91.7{\pm}1.7%$, and $13.1{\pm}1.1%$, respectively. These suggest that these morphometric and morphological differences occur more in artificial environment during and just after metamorphosis.