• Environmental engineer
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• v.18 s.189
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• pp.16-19
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• 2002

CEO는 일반적으로 최고경영자(Chief Executive Officer)를 뜻하는 말이지만 나는 Chief Environment Officer 라는 뜻으로 해석하고 우리 환경관리인 모두 경영자가 되어야 한다는 뜻으로 위와 같은 제목을 썼다. 전국의 많은 환경관리인들은 주어진 책무를 다하기 위해 오늘도 많은 수고를 아끼지 않고 있다. 그러나 대부분의 경우 환경관리인들은 열악한 여건 하에서 일을 해야 하기 때문에 많은 고생을 하고 있는 것이 현실이다. 최

• Electric Engineers Magazine
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• v.221 no.1
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• pp.41-49
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• 2001

최근 반갑지 않은 침입자에 의하여 생명이나 재산을 잃는 사고가 자주 발생한다. 침입자는 도둑이나 강도 뿐만 아니라 화재나 홍수와 같은 자연적인 재해도 많다. 정보통신기술의 발달에 힘입어 마음의 걱정을 덜어주고 귀중한 생명을 보호해주며 목숨처러 아끼는 유형, 무형의 재산과 정보를 지켜줄 전자 보안시스템의 수요가 증가하고 있다. 이러한 실정에서 자신의 실력을 다지고 비용절감 효과도 거두며 첨단기술제품을 개발한 창의력도 기르기 위해 전력기술인이 직접 만들 수 있는 전자보안시스템을 소개하고자 한다

• The Korea Beekeeping Bulletin
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• s.336
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• pp.15-21
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• 2008

월동 포장을 하는 달로써 월동 포장 이후에는 양봉인들은 내년 1월까지 시간적으로 여유가 있게 되는데 귀중한 시간을 무의미하게 보낼 것이 아니라 재충전을 하기위한 동계 양봉 교육이나, 기술연마를 위하여 앞서가는 양봉인들의 정보를 얻을 수 있는 시간으로 활용하고 지역 양봉인과 힘을 합하여 이달중에 밀원수 심는 것도 미래를 위한 튼튼한 양봉 기반이 될 것이기 때문에 양봉인 스스로의 노력이 절실히 필요하다.

• KOREAN POULTRY JOURNAL
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• v.5 no.2 s.40
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• pp.18-19
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• 1973

[ $\lceil$ ]원료 사료가격의 등귀로 극도의 저질사료가 나돌아 양계인이 입는 피해가 엄청나게 큽니다.$\rfloor$ 지난 1월 24일 사료협회에서 사료관계자와 양계업자의 모임에서 지방의 모 양계인은 $\lceil$질을 보장받는 조건하에 사료가격을 현실화하는 것이 사료공장과 양계인이 함께 하는 길입니다.$\rfloor$라고 방안을 제시하였다.

• The Magazine for Energy Service Companies
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• s.65
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• pp.14-17
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• 2010

건물이나 공장에서 흔히 볼 수 있는 기계 중의 하나가 유체 기계인 펌프와 송풍기다. 이러한 기계의 회전수를 제어할 수 있는 방법으로 인버터가 있다. 이는 어떤 신호를 받아 주파수를 변화시켜 유체기계의 회전수를 변화시킴으로 소비동력을 줄여주는 에너지 절감 시스템이다. 목포해양대학교 실습선 사례를 통해 인버터 구동방식에 의한 실습선 냉각수 펌프의 에너지 절감 방법을 알아본다.

• Journal of Korea Multimedia Society
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• v.16 no.8
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• pp.982-993
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• 2013

Currency crisis, in order to solve the problem of the polarization of economic and serious youth unemployment rate, to prepare for the smart new economic era, and like to support and nurture the one-persion creating company of mobile app industry of central and local government people policies are underway. To be able to contribute to the establishment of the success of mobile app One-person creating company, to target the mobile app One-person creating company int the Busan region, we conducted an empirical study of success factors, and thus, support these solutions, more effective and efficient in an attempt to try to seek the support measures, was carried out this research. In this study, results derive a research three hypotheses about the success factors of One-person creating company through literature discussion, were investigated on the basis of empirical data of the mobile app one-persion creative company of Busan region of 51 individual, establishment of company period is longer, the number of organizations employee is large and attract a lot of external funds, and was able to find the tendency of more entrepreneurs receives an education, may increase an outcome of business. In this study, it is possible to obtain the policy implications as follows. First, to attract investment funds and attract government funding to support the funding of One-person creating company, it is necessary to pay attention more. Second, policy founder to an education about the management on an ongoing basis is needed than the education of marketing and technology for human resources development. Future, you will be able to expand across the country study company, we have established a policy of mobile app industry of national dimension, in this foundation, will be expanded to all industries.

• Journal of Aquaculture
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• v.10 no.3
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• pp.347-356
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• 1997

Feeding experiment was conducted to evaluate effects of dietary soybean meal (SBM) on the phosphorus bioavailability of rainbow trout (Oncorhynchus mykiss). Seven diets, containing 0~70% SBM, were made based on iso-nitrogenous and iso-caloric basis of 44% crude protein. Ajpparent digestibility of phosphorus was measured 60 and 120 days after feeding. The digestibility coefficient increased gradually as the level of SBM increased up to 46~58%, but decreased at 58~70% SBM level. Phosphorus concentrations in feces decreased with an increased in dietary SBM level. Patterns of post-prandial phosphorus excretion were not similar to those of ammonia excretion, but the amount decreased with the increased SBM level in the diets. Total excretion of phosphorus for 24 hours was 19.68mg.kg-1 body wt..day-1 in the control group, but excreted phosphorus by the 58% and 70% SBM groups was 63.4% and 56.1% of the control group, respectively. Phosphorus concentration of whole body decreased with an increase in dietary SBM level for 120 days of feeding. However, there were no significant differences in phosphorus concentrations of liver among the experimental groups, except for 70% SBM diet group.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.10 no.11
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• pp.3363-3372
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• 2009

Continued jobless growth in economy, coupled with the current economic recession, is aggravating the situation of job market. In order to create more jobs and reduce the economic gap in a society, an independent creative firm of a sole entrepreneurs is suggested as an alternative mean. Understanding entrepreneurial motivations of a sole entrepreneur will be helpful in developing educational programs on starting an independent creative firm and in establishing a relevant government policy. This study, therefore, proposes a new model on entrepreneurial motivations in the independent creative firm and performs case study. The results of the study show that the personal environment and the personal characteristics of entrepreneurs have much effects on motivation of starting the independent creative firms. Among the personal environments, entrepreneurs' educational backgrounds, work experiences, and personal networks have great influences on entrepreneurial motivations. The processes of sustained entrepreneurship involve: (a) the determination of business ideas and goals, (b) the inception of a new business and managerial activities, (c) the entrepreneur's assessment of both intrinsic and extrinsic rewards of business performances, and (d) the adjustment of business ideas and goals in accordance with the results of the assessment. The results of the study could be applied in developing educational programs and consulting guidelines on independent creative firms and in establishing government's supportive policies on the firm.

• Journal of the Microelectronics and Packaging Society
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• v.25 no.4
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• pp.123-128
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• 2018

Effect of activators in flux on the printability and wettability of a solder paste was evaluated in this study. The activators in this study were dicarboxylic acids, which were oxalic acid (n = 0), malonic acid (n = 1), succinic acid (n = 2), glutaric acid (n = 3), adipic acid (n = 4), and pimelic acid (n = 5). When the solder pastes were observed with a SMT scope, solder with glutaric acid showed clean and shiny surface when it was melted. Slump ratio of the solder pastes was low when the carbon numbers of the dicarboxylic acid were 1-3. Spreadability was high when the carbon number was over 2. Zero cross time of wetting balance test was under 1 sec when the carbon number was over 3. When activator was oxalic acid or malonic acid, zero cross time was over 1 sec and maximum wetting force was low. Fluxes with the oxalic acid and malonic acid showed decomposition at the temperature close to melting point. Among the dicarboxylic acids, glutaric acid provided excellent slump, spreadability, and wettability.

• Proceedings of the Korean Environmental Sciences Society Conference
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• 2007.05a
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• pp.383-389
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• 2007

호기시간 변경에 따른 SBR에서의 영양염류제거특성과 MLVSS의 변화를 본 이번 연구에서는 다음과 같은 결론을 얻었다. 1) 충분하지 못한 산소의 공급은 미생물의 wash-out으로 인한 영양염류 제거 효율의 저조를 나타냈다. 2) 산소 공급량이 $0.045m^3$였던 R2에서 저조산 질산화가 나타났으나, 인을 과다 축적하는 EBPR(Enhanced Biological Phosphorus Removal)을 나타냈다. 3) 산소 공급량이 $0.06m^3$이상이었던 R3, R4에서는 60%이상의 질산화 및 탈질화와 약 100%에 달하는 인 제거 효율을 나타내었다. 4) 단위 미생물당 $1.5{\sim}1.8ml/mg$의 공급 산소량이 인 흡수에 유리한 것으로 나타났다. 5) 공급되는 산소에 있어 유기물 분해>인흡수>질산화에 우선적으로 소모되는 것으로 나타났다.