• Asian-Australasian Journal of Animal Sciences
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• 제26권8호
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• pp.1072-1079
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• 2013

The NLRP12 (NLR family, pyrin domain containing 12) serves as a suppressor factor in the inflammatory response and protects the host against inflammation-induced damage. In the present study, we aimed to study the polymorphisms of NLRP12 gene and its association with susceptibility to non-specific digestive disorder (NSDD) in rabbits. We re-sequenced the entire coding region of the rabbit NLRP12 gene and detected a total of 19 SNPs containing 14 synonymous and five non-synonymous variations. Among them, the coding SNP (c.1682A>G), which would carry a potential functional implication, was subsequently subjected to genotyping for case-control association study (272 cases and 267 controls). The results revealed that allele A was significantly protective against NSDD with an odds ratio value of 0.884 (95% confidence interval, 0.788 to 0.993; p = 0.038). We also experimentally induced NSDD in growing rabbits by feeding a fibre-deficient diet and subsequently investigated NLRP12 mRNA expression. The mRNA expression of NLRP12 in healthy status was significantly higher than that in severe NSDD (p = 0.0016). The highest expression was observed in individuals carrying the protective genotype AA (p = 0.0108). These results suggested that NLRP12 was significantly associated with the NSDD in rabbits. However, the precise molecular mechanism of NLRP12 involving in the development of rabbit NSDD requires further research.

• 교육시설 논문지
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• 제19권2호
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• pp.51-58
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• 2012

In the 21st century numerous universities continue to have an interest in building a more sustainable campus. The concept related to sustainable development and sustainability is applied to new master plan of university or university building planning. The field of sustainable development can be conceptually broken into three constituent parts: environmental sustainability, economic sustainability and social sustainability. The realization of sustainable development will become when considered eco-friendly life of users, not only environmentally friendly technologies. This study aims to research the method of sustainable access to university building planning in Europe and Canada. First, certification and standards will focused on acquisition Green Building Certification. Then we look at trends of sustainability based on users and community through the system of prior consultation between university and users. For the desirable development of the sustainable campus, the sustainable planning of campus should be investigated with campus community, members and local residents considering the generation, the preservation, the maintenance of existing building.

• 한국환경교육학회지:환경교육
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• 제23권2호
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• pp.65-81
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• 2010

Universities which have taken an important role to develop the human resources, became one of emitters of greenhouse gases, they need to find a way to reduce global warming gases through reduction of energy consumption. This study is intented to propose a solution that can reduce the greenhouse gases at universities located in Korea. To conduct this study, we have chosen a university at Wonju in Kangwon province for a case study and investigated the emissions of carbon dioxide from campus facilities and residential area. The data has become a footstone to estimate the assumed amount of carbon emission for top 23 energy consumption universities in Korea. We calculate the amount for carbon emission, not only for facilities in campus, but also for residential buildings, amount for emission is increased severely by showing $9780.94tCO_2$, which is 2.1 times more than average amount for emission of greenhouse gases researched in existing statistics. Universities have difficulty in introducing new energy generation system, as having been done business companies or other commercial facilities but they are required to introduce some educational methods since it is a academic space. Incentive to universities reducing carbon emission in campus is a system to provide incentives with students, professors, administrative personnels and others in campus as a compensation for their efforts to save energy. It is needed to establish the infrastructures for measuring energy consumption in campus.

• Environmental Engineering Research
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• 제22권1호
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• pp.40-54
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• 2017

According to FAO, "agricultural sectors are particularly exposed to the effects of climate change and increases climate variability". As a result, the study makes an attempt to answer the question: Is there a causal effect between agricultural production and carbon dioxide emissions in Ghana? By employing a time series data spanning from 1960 to 2015 using the Autoregressive Distributed Lag method. There was evidence of a long-run equilibrium relationship running from copra production, corn production, green coffee production, milled rice production, millet production, palm kernel production and sorghum production to carbon dioxide emissions. The short-run equilibrium relationship shows that, a 1% increase in copra and green coffee production will increase carbon dioxide emissions by 0.22% and 0.03%, a 1% increase in millet and sorghum production will decrease carbon dioxide emissions by 0.13% and 0.11% in the short-run while a 31% of future fluctuations in carbon dioxide emissions are due to shocks in corn production. There was bidirectional causality between milled rice production and carbon dioxide emissions, millet production and carbon dioxide emissions and, sorghum production and carbon dioxide emissions; and a unidirectional causality running from corn production to carbon dioxide emissions and carbon dioxide emissions to palm kernel production.

• 한국가구학회지
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• 제20권5호
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• pp.457-466
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• 2009

This study was carried out to investigate the physical and mechanical properties of 6 hardwoods before and after heat treatment in an effort to produce the high quality industrial lumber product. The results were as follows. Specific gravities of green woods were in range from 0.90 to 1.10. The specific gravities of never treated woods showed higher than those of the heat treated woods. The shrinkage of heat treated woods when green to air & oven dry was significantly low, compared to never treated woods. The compression strengths parallel to grain of heat treated woods showed higher than those of never treated woods. The moduli of rupture (MOR) of never treated and heat treated woods were $176.4N/mm^2{\sim}102.8N/mm^2$ and $100.1N/mm^2{\sim}61.2N/mm^2$ respectively. MORs of heat treated woods showed lower than those of never treated woods. There was no significant change in the modulus of elasticity (MOE) before and after heat treatment.

• 환경영향평가
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• 제21권6호
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• pp.927-939
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• 2012

Cool roofs are currently being emerged as one of important mechanism to save energy in relation to the building. Although green roof has already gained nation-wide recognition as a typical method of energy saving in the roof, this approach did not provide a realistic evidence that is economically feasible in terms of installation cost. This research is primarily intended to compare installation cost between the two techniques. This research proposes a comparative evaluation framework in a more objective and quantitative way for an installation cost between the two techniques. Kyungpook National University (KNU) was selected as a survey objective and an exhaustive and realistic comparison of installation cost between the two techniques was conducted, based on Life Cycle Cost analysis (initial investment cost, maintenance cost, dismantling and waste disposal expense). It was possible to identify that installation cost of cool roofs is 4.7 times cheaper than that of green roof. Also present value based on probabilistic approach was identified as 0.25 (4.95) higher than the installation cost on the assumption of constant price and interest. It is expected that much more installation cost for the large scale green roof will be required since small-size green roof selected as a survey objective in this study could be operated under less initial installation and maintenance condition.

• KIEAE Journal
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• 제14권2호
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• pp.37-46
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• 2014

University buildings are energy-guzzling facility that consume more than 10,000TOE within a campus annually. Even the consumption is on an upswing trend. Behind such high consumption are there cheap power rates for education facility, lack of high-efficiency equipment and ever-increasing use of various information equipment. Being keenly aware that greenhouse gas emission increases due to such rise of energy consumption, the present study carried out a case study. In the case study, the study chose the buildings of E university from top 10 universities that consume energy most in Seoul and examined the current status of their energy consumption and greenhouse gas emission. And then it set the reduction target of greenhouse gas by year. Putting aside a middle and long-termed strategy for later endeavor, it first established the 1st year's implementation plan (2014) for energy saving and greenhouse gas reduction with limited budget and according to greenhouse gas reduction target. The plan is specified as follows. Targets for energy saving are mainly divided into two sectors: machine equipment and electric equipment. 7 ideas were proposed. Three ideas to improve machine equipment are to replace with high-efficiency boilers and chillers and to adjust the position of the cooling tower. By doing so, it was estimated that energy could be saved by 176.34TOE in total and greenhouse gas could be reduced by 370.771t$CO_2$-eq. Four ideas to improve electric equipment include the replacement with LED lights, LED emergency lights and high-efficiency motors and the installation of motion sensors. It was calculated that such replacement could conserve 1,076.08TOE (electric energy) and reduce 2,181.420t$CO_2$-eq (greenhouse gas).

• International Journal of Industrial Entomology and Biomaterials
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• 제13권2호
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• pp.103-108
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• 2006

Efficacy of aqueous leaf extracts of medicinal plants viz., Eucalyptus globulus, Ocimum sanctum and Piper betle were evaluated against the hatching of eggs, mortality of nymphs and mortality and fecundity of adult mealy bugs (Maconellicoccus hirsutus Green) under in vitro conditions. Totally seven concentrations 1, 5, 10, 20, 50, 70 and 100 percent were tested against mealy bugs. The results revealed that with the increase in the concentration of extracts, there was a corresponding decrease in hatching, nymphal & adult mortality and fecundity in all the extracts tested. The hatching of eggs was minimum at 100 percent concentration in E. globulus (20.00%) followed by O. sanctum (30.42%) and P. betle (36.06%) over control (96.73%). The growth and development of nymphs and adults were adversely affected after the treatment. The nymphs did not attain the adult stage and there was total mortality of nymphs in different treatments. The duration of nymphal stage was reduced by 2-10 days in E. globulus, 1-7 days in O. sanctum and 1-2days P. betle at higher concentrations. However, at lower concentrations it was prolonged by 2-4 days in all the three extracts. At lower concentrations the mortality of adults was on par with the control. Similarly the adult duration was also reduced by 3-4 days at 100 percent concentration and prolonged by 5-6 days at lower concentrations in all the extracts. With the increase in concentrations of the extracts there was decrease in the fecundity of eggs. Thus, the leaf extracts of E. globulus was found to be most effective followed by O. sanctum and P. betle against mealy bugs.

• 한국산학기술학회논문지
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• 제21권12호
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• pp.731-741
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• 2020

캠퍼스플랜은 대학의 공간적 가치와 특성, 정체성을 포함한다. 세계적으로 친환경에 대한 인식이 높아지면서 캠퍼스 정책과 플랜에도 그린캠퍼스 논의와 실행, 인증이 진행되고 있다. 본 연구의 목적은 캐나다 UBC의 지속가능한 캠퍼스플랜을 통해 그린캠퍼스 인증제와 별도로 UBC가 추구하는 지속가능한 대학캠퍼스 장책 및 공간, 실천전략으로서 건축적용 사례를 분석한다. 이를 통해 캠퍼스플랜의 지속가능한 방향과 건축의 실천요소들을 도출하고자 한다. 결과, 첫째, 개별 건축물과 전체적인 목표와 부합성이 중요했다. 대학은 지속가능한 캠퍼스를 만들기 위한 목표설정 및 전략적인 실행체계가 필요하다. 둘째, 초기 단계에서 각 분야의 전문가 또는 이해관계자들의 참여형 디자인샤렛을 통한 가이드라인의 설정과 제도적 계획과정이 필요했다. 셋째, 완공 후 건축물의 실시간 에너지 사용량의 비교, 검증 모니터링과 이것의 피드백을 적용하는 선순환 구조체계가 필요했다. 본 연구는 지속가능한 도시의 리빙랩 개념으로서 캠퍼스정책과 플랜이 필요하다는 의도를 갖는다. 또한, 국내 대학의 상황에 부합하는 지속가능성의 목표와 실행방안 수립 모색에 근거가 될 수 있다는 점에서 의미가 있다.

• Korean Chemical Engineering Research
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• 제60권1호
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• pp.34-50
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• 2022

파리 기후 협약 이후 온실 가스 감축은 전세계적으로 가장 중요한 문제이다. 특히 상당한 온실 가스를 배출하는 교통 운송 부문의 화석 연료 감축이 시급하다. 본 논문에서는 이에 대한 대안으로 재생에너지원에서 생산된 전기 에너지로 수소를 생산하여 수소 자동차에 연료로 공급하는 그린 모빌리티 에너지 시스템의 경제성을 검토하였다. 시스템 설계에 필요한 재생에너지 발전, 수전해 통한 수소 생산, 수소 저장과 충전소 등 여러가지 결정사항들에 대해 9 가지 시나리오를 구성하여 그에 대한 최적 설계 및 운영 비용을 분석하였다. 본 연구에서 얻어진 경험은 현실적 수소 에너지 시스템을 구축하는데 활용될 수 있을 것이다.