• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2009년도 추계 학술논문 발표대회
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• pp.269-272
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• 2009

The environment of Ubiquitous in terms of improvement is being expanded to various fields and time enabled system. Thus, a real-time spatial information management system has been developed by integrating a human movement detection system into a SICS(Spatial Information Control System) engine that can integrally manage inside spatial information extracted from 3D CAD and outside spatial information of GIS. The add-on program was developed to extract spatial information necessary for the SICS engine from 3D CAD information, and a human movement detection system was developed. Test bed was operated for 2weeks and indoor human flow information was found out by zone. Also, the direction of future research was decided through a test bed.

• 대한교통학회:학술대회논문집
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• 대한교통학회 2007년도 제56회 학술발표회논문집
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• pp.275-282
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• 2007

• KEPCO Journal on Electric Power and Energy
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• 제2권1호
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• pp.103-108
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• 2016

Carbon Capture and Storage technologies are recognized as key solution to meet greenhouse gas emission standards to avoid climate change. Although MEA (monoethanolamine) is an effective amine solvent in $CO_2$ capture process, the application is limited by high energy consumption, i.e., reduction of 10% of efficiency of coal-fired power plants. Therefore the development of new solvent and improvement of $CO_2$ capture process are positively necessary. In this study, improvement of $CO_2$ capture process was investigated and applied to Test Bed for reducing energy consumption. Previously reported technologies were examined and prospective methods were determined by simulation. Among the prospective methods, four applicable methods were selected for applying to 0.1 MW Test Bed, such as change of packing material in absorption column, installing the Intercooling System to absorption column, installing Rich Amine Heater and remodeling of Amines Heat Exchanger. After the improvement construction of 0.1 MW Test Bed, the effects of each suggested method were evaluated by experimental results.

• 한국지반공학회논문집
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• 제23권4호
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• pp.101-112
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• 2007

본 논문은 국내발생 하상재료의 하천제방 축제 재료로의 활용성 평가를 위한 실내시험결과를 나타내고 있다. 본 연구에서는 시멘트와 화강풍화토를 혼합한 하상토의 공학적 특성을 평가하기 위해 일련의 실내시험을 수행하였다. 이를 위해 입도분석, 직접전단시험, 투수시험, 일축압축시험을 수행하였다. 시험결과를 통해 시멘트와 화강풍화토를 혼합하여 처리된 하상토의 제방 축조제 및 성토재로의 활용가능성을 확인할 수 있었다.

• 한국연안방재학회지
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• 제5권4호
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• pp.163-172
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• 2018

To propose the design technique and the execution manual of the LWFS(Lightweight Foamed Soil) method using dredged soil, the operation system for the test-bed integrated management, and to establish an amendment for the domestic quantity per unit and specifications, and a strategy for its internationalization. In order to utilize the dredged soil from the coastal area as a construction material, we constructed the embankment with LWFS on soft ground and monitored its behavior. As a result, it can be expected that the use of LWFS as an embankment material on the soft ground can improve the economic efficiency by reducing the depth and period of soil improvement as well as the uses of nearby dredged soil. To verify the utilization of the dredged soil as a material for light-weighted roadbed, soft ground and foundation ground, and surface processing, perform an experimental construction for practical structures and analyze the behavior. It is expected to be able to improve the soft ground with dredged soil and develop technique codes and manuals of the dredged soil reclamation by constructing a test-bed in the same size of the fields, and establish the criteria and manual of effective dredged soil reclamation for practical use. The application technology of the dredged soil reclamation during harbor constructions and dredged soil reclamation constructions can be reflected during the working design stage. By using the materials immediately that occur from the reclamation during harbor and background land developments, the development time will decrease and an increase of economic feasibility will happen. It is expected to be able to apply the improved soil at dredged soil reclamation, harbor and shore protection construction, dredged soil purification projects etc. Future-work for develop the design criteria and guideline for the technology of field application of dredged soil reclamation is that review the proposed test-bed sites, consult with the institutions relevant with the test-bed, establish the space planning of the test-bed, licensing from the institutions relevant with the test-bed, select a test-bed for the dredged soil disposal area.

• 한국습지학회지
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• 제1권1호
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• pp.7-16
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• 1999

The objective of this study is to recover the contaminated ditch by using a biofilter filled up with waste-concrete media and vegetation bed. Two systems were tested for elimination of organic compounds, turbidity, nitrogen and phosphate. System 1 is three-stage system which consisted of one biofilter and two vegetation bed, system 2 has three-stage system consisted of one biofilter, one vegetation bed (four bed), and one media trench operated in series. In system 1, HRT of biofilter was 4 hour, and Oenanthe javanica was planted in two vegetation bed. In system 2, HRT of biofilter was varied 2 hours and Persicaria chinensis was planted on the top of the biofilter. And Oenanthe javanica, Hydrocharis asiatica, Salvinia natans were planted in four bed of a vegetation bed and the second vegetation bed of system 1 was rebuilt to a media trench bed. The elimination rate of BOD and turbidity was over 90% in both systems. The mean elimination rates 40~50%(system 1), 30~40%(system 2) for T-N and 40~50% (system 1), 30~40%(system 2)for T-P. T-N and T-P elimination performance of system 1 was a little higher(10%) than that of system 2. Results showed that vegetation bed are not efficient in reducing T-N and T-P. It was considered that HRT of vegetation bed of both systems was much lower(1~2hr) than that of conventional system(5~20days).

• 대한공간정보학회지
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• 제19권3호
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• pp.99-105
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• 2011

지능형국토정보기술혁신사업은 상용화가 가능한 공간정보기술개발을 위해 2006년부터 2012년까지 정부가 추진하고 있는 대형 국가R&D사업이다. 본 사업은 연구 성과물이 실제 현장에 바로 적용될 수 있는 검증된 연구 성과물을 도출하기 위해 세종시를 테스트베드 지역으로 선정하여, 현장실험을 준비하고 있다. 그러나 효과적인 연구 성과물 현장실험을 위해서는 국내외에서 인정받을 수 있는 기준을 만족하는 현장여건을 조성해야 한다. 본 논문에서는 지능형국토정보기술혁신사업의 연구성과물 중 최신 측량장비의 성능 검증을 위한 다양한 요구사항과 세종시 현장여건을 고려하여 테스트베드를 설계하는데 목적을 두었다.

• 대한간호
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• 제36권2호
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• pp.73-83
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• 1997

Bed rest is recommended to prevent postlumbar puncture headaches(PLPHA), but the period of bed rest varies in the literature from 6 hours to 24 hours. In clinical practice the period of bed rest varies but nursing methods for adults and children have little difference. In Seoul National University Hospital, children have been given at least 6 hours bed rest after a lumbar puncture. Pediatric oncology patients require a lumbar puncture for an initial diagnosis, follow up treatment or administration of chemotherapeutic agent. But it is difficult for young children to lie supine or to refrain from their usual activities in any way, and unpleasant problems related to a shortage of beds often occurs during discharge or in an outpatient setting. The purpose of this study is to substantiate the preventive effect of PLPHA by the period of bed rest, to identify the other factors that influence PLPHA, and to use the nursing methods proper to children. The subjects were 65 children, ages 1-17, undergoing treatment in the children's cancer center at SNUCH during the period June 1, 1995, to Aug. 31, 1995. The team nurses asked questions about PLPHA of the parents and children in order to fill out a questionnaire. The data were evaluated by percent, t-test, Chi-square test and Mann-Whitney U test. Result; 1. There was no significant difference relating the bed rest time spent to the occurrence of postspinal headaches (t-test). 2. There was a significant risk of PLPHA in the children who were irritable before procedure and/or had experienced previous PLPHA(p<0.05, ${x^2}-test$). 3. The following factors were not found to be associated with increased risk of PLPHA: previous puncture experience, giving analgesics, the choice of puncturist, inpatient/outpatient status, gauge of needle, purpose, the amount of CSF removed, gender, diagnosis, the number of peripheral WBCs, previous lumbago experience after LP, position after bed rest, age, the number of aural puncture at the time. A longer period of bed rest is unlikely to be more effective to prevent PLPHA and seems impractical. A shorter period will save time and effort. Perhaps it will also allay some of the fears which surround LP. So 1 hour bed rest after LP is suggested and nursing methods for emotional support should be investigated to reduce PLPH.

• Geomechanics and Engineering
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• 제34권2호
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• pp.139-154
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• 2023

Red-bed soft rock is a common stratum and it is necessary to evaluate the mechanical properties and bearing capacity of red-bed soft rock mass affected by different environmental effects. This paper presents a complete procedure for evaluating the bearing capacity of red-bed soft rock by means of geophysical exploration and in-situ rock mechanics tests. Firstly, the thickness of surface loosened rock mass of red-bed soft rock was determined using geophysical prospecting method. Then, three environmental effects, including natural weathering effect, dry-wet cycling effect and concrete sealing effect, were considered. After each effect lasted for three months, in-situ rock mass mechanical tests were conducted. The test results show that the mechanical properties of rock mass considering the sealing effect of concrete were maintained. After considering the natural weathering effect, the mechanical parameters decrease to a certain extent. After considering the effect of dry-wet cycling, the decreases of mechanical parameters are the most significant. The test results confirm that the red-bed soft rock dam foundation rock mass will be significantly affected by various environmental effects. Therefore, combined with the mechanical test results, some useful implementations are proposed for the construction of a red-bed soft rock dam foundation.

• 한국공간정보시스템학회 논문지
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• 제11권4호
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• pp.1-8
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• 2009

정부는 급격히 성장하고 있는 공간정보시장의 중요성을 인식하고 상용화가 가능한 기술개발을 위해 2006년부터 2012년까지 대형 국가R&D사업인 지능형국토정보기술혁신사업을 추진하고 있다. 이에 따라, 본 사업은 실제 현장에 바로 적용될 수 있는 검증된 연구 성과물을 도출하기 위해 성과물의 현장적용, 통합, 전시를 위한 테스트베드 구축이 계획되어 있다. 이 중 가장 먼저 해결해야 하는 것이 바로 합리적인 입지 선정이다. 본 논문에서는 지능형국토정보기술 테스트베드와 같이 공간정보기술 실험을 위한 테스트베드 구축과정에서 최적의 입지선정 방안을 도출하는데 목적을 두었다. 연구결과는 국내외 테스트베드 구축사례를 알아보고, 테스트베드에 적용되는 성과물의 특성 분석을 통해 입지선정을 위한 방안을 도출하였다.