• Asian-Australasian Journal of Animal Sciences
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• 제21권5호
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• pp.692-700
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• 2008

A trial was conducted to study the influence of different levels of a commercial enzyme complex on performance, nutrient availability, blood parameters, digestive tract measurements, amylase and trypsin activity of the digestive tract and gut morphology in broilers fed the typical diets in north China. There were four treatments: the control diet and the other three enzyme complex supplemented diets which were 180 mg/kg, 360 mg/kg and 720 mg/kg enzyme complex supplemented to the control diet, respectively. The birds fed the diets supplemented with 180 mg/kg and 360 mg/kg enzyme complex had better performance and nutrient availability, the activities of amylase and trypsin in the digestive tract in the two treatments were improved, the villus height and surface area of villus in the small intestine increased and the crypt depth and epithelial thickness of small intestine decreased. Relative weights of pancreas and relative weights and lengths of small intestine decreased. However, the addition of 720 mg/kg enzyme complex had no effects on these parameters and increased crypt depth and epithelial thickness of the small intestine. The data suggested that suitable supplementation of enzyme complex was beneficial for the birds, while excess enzyme complex inhibited secretion of endogenous enzyme and destroyed the structure of the small intestine.

• 한국학교ㆍ지역보건교육학회지
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• 제11권1호
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• pp.67-78
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• 2010

Background & Objectives: Current trend is that funding agencies require investigators to share their data with others. However, there is limited guidance how to access and utilize the shared data. We sought to determine what common data sharing practices in U.S.A. are, what data-related to adolescent health are freely available, and how we deal with the large dataset adopting the complex study design. Methods: The study included only research data-related to adolescent health which was collected in USA and unlimitedly accessible through the internet. Only the raw data, not aggregated, was considered for the study. Major keywords for web search were "adolescent", "children", "health", and "school". Results: Current approaches for public health data sharing lacked of common standards and varied largely due to the data's complex nature, large size, local expertise and internal procedures. Some common data sharing practices are unlimited access, formal screened access, restricted access, and informal exclusive access. The Inter-University Consortium for Political and Social Research and the Center for Disease Control and Prevention were the best data depository. "Data on the net" was search engine for the website providing data freely available. Six datasets related to adolescent health freely available were identified. The importance and methods of incorporating complex research design into analysis was discussed. Conclusion: There have been various attempts to standardize process for open access and open data using the information technology concept. However, it may not be easy for researchers to adapt themselves to this high technology. Therefore, guidance provided by this study may help researchers enhance the accessibility to and the utilization of the open source data.

• 한국식품과학회지
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• 제20권3호
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• pp.331-337
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• 1988

국내에서 생산되는 다수확계 및 일반계 쌀 각 5품종을 Differential Scanning Calorimetry(DSC)로 열분석 하여 호화, amylose-lipid complex의 melting 및 노화 등의 상전이 현상들을 연구하였다. 다수확계와 일반계품종간에는 호화개시 온도에 있어서는 특정한 차이가 없었으나 호화의 온도범위는 다수확계가 약간 넓은 경향이었는데 다수확계가 더 큰 값을 보였다. 고단백 쌀가루의 DSC thermogram은 온도범위가 좁아지고 크기가 작아진 호화 peak를 보여주었다. 노화현상을 DSC방법과 diastase 측정방법을 이용하여 측정한 결과 DSC방법이 보다 우수함을 알았고 다수확계 삼강품종의 노화속도는 일반계 추청품종보다 빠른 것을 알 수 있었다.

• 한국산학기술학회논문지
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• 제16권1호
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• pp.762-768
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• 2015

본 연구의 목적은 최근 고층아파트 단지 내에서 주요 계획요소로 자주 채택되고 있는 저층부 필로티 공간과 주요 옥외단위공간들의 통합도 값을 단지별 전체 통합도 평균값과 비교하여 필로티 공간의 통합도 값이 다른 옥외공간들과 비교할 때 어느 정도의 통합도 위상을 갖는지 분석하는 것이며, 또한 다음 단계의 연구인 필로티 공간 이용행태 관찰 및 이용빈도 조사의 기초자료로 삼는데 있다. 본 연구의 결론은 다음과 같다. 첫째, 고층아파트 단지의 필로티 공간을 포함한 주요 옥외단위공간들 중 '단지출입구' 또는 '광장' 공간이 가장 높은 통합도 값을 보이고 있다. 둘째, 고층아파트 단지의 필로티 공간 통합도 값이 다른 주요 옥외단위공간들의 통합도 값보다 대체적으로 낮은 경향을 보이고 있다. 세째, 고층아파트 단지의 필로티 공간들중 동출입구의 기능이 없는 '돌출형 출입 + 필로티 부가형' 유형의 공간일 경우 주민들의 공간이용률이 현격하게 저조하여 음성적 공간화 및 공동화 현상이 발생될 가능성이 크다고 볼 수 있다.

• 산업융합연구
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• 제17권4호
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• pp.1-8
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• 2019

본 연구는 관광단지의 실태를 분석하고, 관광단지의 활용 및 관리를 개선하기 위해 IoT 기반 통합관리시스템을 관광단지에 적용하는 것을 목적으로 한다. 관광수요자들은 관광활동에서 관광지를 선책하기 위해서 다양한 필요하며 이러한 필요한 모든 정보는 인터넷이나 여행사, 신문, 주위의 경험자들의 정보 등 여러 경로로 통해 수집하게 된다. 최근 정보기술의 발달로 인터넷을 통한 정보 제공이 큰 비중을 차지하고 있으며, IoT 기술을 접목한 시스템들이 구축되고 있다. IoT 기술의 대중화로 인해 정보의 다양성과 접근성, 편리성이 향상되고 사용도 편리해지고 있기 때문이다. IoT 기반 시스템을 활용한 관광정보 서비스의 중요성과 향후 연구방향에 대해 제시하고자 한다. IoT 기술의 효율성을 고려하여 IoT 기반 시스템 구축에 대한 선행연구도 검토되었다. 관광단지의 문제점을 해결하기 위해 본 연구에서는 IoT 기반 관광단지 운영체계를 개선하여 운영관리를 수행하였다. IoT 기반 경영시스템은 관광단지 플랫폼으로서 운영에 있어 개선될 것으로 기대되며, 전반적인 경영 사례와 경험으로 개선될 것으로 기대된다.

• 환경영향평가
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• 제15권2호
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• pp.111-119
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• 2006

In Korea, an environment-friendly concept of "rain re-cycling" was initially introduced in apartment complex planning and designs in the late 1990s. Although its application cases are extremely few, with the growing importance of rainwater utilization, introduction of rainwater management facilities in urban areas began to drawn keen attention. In urban areas also, plans to introduce rainwater management facilities in apartment complexes as infrastructure improving living environment, such as sewage treatment facilities are very urgently required. In order to introduce rainwater management facilities as infrastructure in an apartment complex, apartment complex cases that had introduced the facilities were reviewed first. In this study, a few applied rainwater management facilities in an apartment complex were surveyed(Infiltration barrel, Rubble porosity storage tank, Underground storage tank). As a result, problems in introducing rainwater management facilities in apartment complexes in Korea were identified.

• 보건의료산업학회지
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• 제8권2호
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• pp.139-148
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• 2014

The purpose of this study was to analyze the factors affecting the unmet dental needs of Koreans. In relation to the subjects and methodology for this study, the data from the 5th national health nutrition survey which had been conducted between 2010 and 2012 were analyzed by using the PASW statistics 18.0 (SPSS Inc., Chicago, IL, USA), a statistical program, through the frequency analysis of complex samples, cross analysis of complex samples, and logistics regression analysis of complex samples. The results of analysis showed that the rate of unmet dental needs stood at 35.3% of all subjects. Moreover, to determine the factors related to the unmet dental needs, the logistics regression analysis of complex samples was conducted. The results of analysis showed that the demographic and socio-economic factors and oral health condition factors had relationship with unmet dental needs. It is necessary to consider all the objective dental treatments that reflect specific dental diagnosis from a comprehensive standpoint.

• 한국주거학회논문집
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• 제21권4호
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• pp.89-97
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• 2010

Digital convergence era has been already started and is rapidly developed. Recently, convergency technology became an essential issue in all industries, and is expected to accelerate. This means that we can experience growth and change of architecture using new technology and approaching method. The AR (Augmented Reality) technology, among these convergence technology, is a kind of virtual reality technology that user can see a scene of real world which is overlapped by virtual world with additional information. It has been used in manufacturing and management in the whole industry fields including medical, mechanical, military field and so on because it can provide higher sense of reality. Thus, in this paper, we suggest the utilization of AR technology for organically connecting the roads, facilities, green area, landscape and others in the layout planning of housing complex. Users can see real world with virtual object by overlap computer graphic on the real world. This method provides users with various information about territoriality and openness. As the result of this study it is expected that this technology will help the layout planning of housing complex to become more reasonable in the aspect of design, time and cost.

• 한국태양에너지학회 논문집
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• 제33권4호
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• pp.59-69
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• 2013

The Consultation about Energy Use Plan is prescribed by the Energy Use Rationalization Act. In order to reset Examination Criteria for Energy Use Plan, consultation case analysis from 2001 to 2010 were carried out and National Energy Master Plan was reviewed. This study proposes that Examination Criteria for Energy Use Plan be should divided into Urban & Tourism complex development project and Industrial complex development project for the prevention of civil complain. Also predicts that effect of energy savings calculated by Reset Examination Criteria on $1^{ST}$ energy demand BAU at 2030 is 2.2%, effect of new & renewable energy utilization at 2030 is 3% and the rate of $CO_2$ reduction to greenhouse gas emission BAU at 2020 is 1.1%.

• Environmental Engineering Research
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• 제24권1호
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• pp.1-16
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• 2019

N-nitrosodimethylamine (NDMA) is a typical nitrogen disinfection by-product, which has posed a potential threat to human health during drinking water disinfection. Because of the well-known effects of mutagenesis, carcinogenesis and teratogenesis, the high detection rate in water engineering systems (such as coagulation, membrane filtration and biological systems), and difficulty to remove, it has received wide concern in the field of water engineering systems. The NDMA is a low molecular weight hydrophilic organic substance, which is difficult to remove. Also, the mechanism for NDMA formation is also recognized to be complex, and many steps still needed to be further evaluated. Therefore, the mechanistic knowledge on NDMA formation potential and their removal processes is of particularly interest. Few papers summarize the occurrence and control of NDMA in water engineering systems. It is for this reason that the content of this paper is particularly important for us to understand and control the amount of NDMA thus reducing the threat of disinfection by-products to drinking water. Four parts including the mechanisms for the NDMA formation potential, the factors affecting the NDMA formation potential, the technologies for removal of NDMA are summarized. Finally, some definite suggestions are given.