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      • Design of Effective Receiver in Hospital Wireless Network Using Turbo Code

        Gyeong-Hyu Seok,Jong-Yun Kim,Byung-Kwan Lim,Dong-Gyun Ryu,Suk-Il Kim 보안공학연구지원센터 2016 International Journal of Future Generation Communi Vol.9 No.10

        In this paper, we considered the received signal of the wideband CDMA systems using turbo code in the multipath channel environments, and analyze the performance of the system. This study is to analyze the performance for the variable system bandwidth according to the number of branches of rake receiver by passing the received signal through a rake receiver with a turbo code in Rayleigh fading channel environments. For the design of receiver in wideband CDMA systems, we presented the efficient parameters for the number of iterative decoding and the number of branches of rake receiver.

      • Effective Real Time Attention Bayesian Statistical Methods for Identifying Medical Information Protection

        Gyeong-Hyu Seok,Bu-Yeon Park,Seol-Kyung Song,Moon-Sung Jung,Jung-Tae Kim,Suk-Il Kim 보안공학연구지원센터 2016 International Journal of Multimedia and Ubiquitous Vol.11 No.11

        In this paper, we propose a GRNN(: Generalized Regression Neural Network) algorithms for new eyes and face recognition identification system to solve the points that need corrective action in accordance with the existing problems of facial movements gaze upon it difficult to identify the user and . Using a Kalman filter structural information elements of a face feature to determine the authenticity of the face was estimated future location using the location information of the current head and the treatment time is relatively fast horizontal and vertical elements of the face using a histogram analysis the detected. And the light obtained by configuring the infrared illuminator pupil effects in real-time detection of the pupil, the pupil tracking was - to extract the text print vector. The abstract is to be in fully-justified italicized text as it is here, below the author information.

      • 개연적 그래프 모델을 이용한 네트워크 모델 확장

        석경휴(Gyeong hyu Seok),김성홍(Sung hong Kim) 한국전자통신학회 2013 한국전자통신학회 학회지 Vol.6 No.1

        본 논문에서는 유전자 생물학 분야의 여러 각도로 세포 간 네트워크를 분석하고, 유전자 생물학 분야를 정보공학 네트워크에 응용하여 수치학적인 표현 모델로 분석 연구하고자 한다. 개연적 그래프 모벨을 사용하여 데이터 네트워크로부터 생물학적 통찰력을 개연적 함수적으로 응용해, 복잡한 세포 간 네트워크 보다 단순한 하부모델로 구성하여 유전자 베이스네트워크 논리를 유전자 표현 레벨로 나타낸다. 유전자 데이터로부터 개연적 그래프 모델들을 분석하여 유전자 표현 데이터를 정보공학 네트워크 모댈의 방법으로 확장 추론한다. This study is a nwnerical representative modelling analysis for applying the process that unravels networks between cells in genetics to Net:work of infonnatics. Using the probabilistic gtaphical model, the insight from the data describing biological networks is used for making a probabilistic function. Rather than a complex network of cells, we reconsttuct a simple lower-stage model and show a genetic representation level from the genetic based network logic. We made probabilistic gtaphical models from genetic data and extend them to genetic representation data in thε method of network modelling in infonnatics

      • 바이오 셀 정보 추출을 위한 확률 모델

        석경휴(Gyeong hyu Seok),김희철(Hee chul Kim) 한국전자통신학회 2011 한국전자통신학회 학회지 Vol.5 No.1

        유전자 생물학 분야에서 여러 각도로 세포 간 네트워크를 입증하는 고 처리 정보공학 네트워크에 응용하려는 수치학적인 표현 모댈을 분석 연구한다. 확률적 그래프 모댈을 사용하여 데이터 네트워크로부터 생물학적 통찰력을 확률적 함수적으로 응용해 복잡한 세포 간 네트워크 보다 단순한 하부모델로 구성하여 유전자 베이스네트워크논리를 유전자 표현 레벨로 나타낸다. 유전자 데이터로부터 확률적 그래프 모텔들을 분석하여 유전자 표현 데이터를 정보공학 네트워크 모델의 방법으로 확장 추론한다. This study is a numerical representative modelling analysis for applying the process that unravels networks between cells in genetics to Network of informatics. Using the probabilistic graphical model, the insight from the data describing biological networks is used for making a probabilistic function. Rather than a complex network of cells, we reconstruct a simple lower-stage model and show a genetic representation level from the genetic based network logic. We made probabilistic graphical models from genetic data and extend them to genetic representation data in the method of network modelling in informatics.

      • Sampling Design of SSCs for Characterization at Shut-Down Power Plant

        Hyu Chang Choi,Jong Sun Hwang,Hye Jin Jung,Byong Sop Lim,Jong Hyuk Hong,Yo Gyeong Yun,Yoon Seok Kim 한국방사성폐기물학회 2023 한국방사성폐기물학회 학술논문요약집 Vol.21 No.2

        The radiological characterization of SSCs (Structure, Systems and Components) plays one of the most important role for the decommissioning of KORI Unit-1 during the preparation periods. Generally, a regulatory body and laws relating to the decommissioning focus on the separation and appropriate disposal or storage of radiological waste including ILW (intermediate level waste), LLW (low level waste), VLLW (very low level waste) and CW (clearance waste), aligned with their contamination characteristics. The result of the preliminary radiological characterization of KORI Unit-1 indicated that, apart from neutron activated the RV (reactor vessel), RVI (reactor vessel internals), and BS (biological shielding concrete), the majorities of contamination were sorted to be less than LLW. Radiological contamination can be evaluated into two methods. Due to the difficulties of directly measuring contamination on the interior surfaces of the pipe, called CRUD, the assessment was implemented by modeling method, that is measuring contamination on the exterior surfaces of the pipes and calculating relative factors such as thickness and size. This indirect method may be affected by the surrounding radiation distribution, and only a few gamma nuclides can be measured. Therefore, it has limitation in terms of providing detailed nuclide information. Especially, α and β nuclides can only be estimated roughly by scaling factors, comparing their relative ratios with the existing gamma results. To overcome the limitation of indirect measurement, a destructive sampling method has been employed to assess the contamination of the systems and component. Samples are physically taken some parts of the systems or components and subsequently analyzed in the laboratory to evaluate detailed nuclides and total contamination. For the characterization of KORI Unit-1, we conducted the radiation measurement on the exterior surfaces of components using portable instruments (Eberline E-600 SPA3, Thermo G20-10, Thermo G10, Thermo FH40TG) at BR (boron recycle system) and SP (containment spray system) in primary system. Based on these results, the ProUCL program was employed to determine the destructive sample collection quantities based on statistical approach. The total of 5 and 8 destructive sample quantities were decided by program and successfully collected from the BR and SP systems, respectively. Samples were moved to laboratory and analyzed for the detail nuclide characteristics. The outcomes of this study are expected to serve as valuable information for estimating the types and quantities of radiological waste generated by decommissioning of KORI Unit-1.

      • KCI등재

        Incorporation Effect of Green Manure Crops on Improvement of Soil Environment on Saemangeum Reclaimed Land during Silage Corn Cultivation

        Chang-Hyu Yang,Jang-Hee Lee,Nan-Hyun Baek,Pyeong Shin,Kwang-Min Cho,Sang-Bok Lee,Gyeong-Bo Lee 한국토양비료학회 2013 한국토양비료학회지 Vol.46 No.3

        This study was carried out to investigate the incorporation effect of green manure crops (GMC) such as the hairy vetch on improvement of soil environment in reclaimed land during silage corn cultivation over the past two years. Plots consisted of conventional fertilization (CF) and incorporation of GMC were divided by addition rate of nitrogen fertilizer (100 kg ha<SUP>-1</SUP>) with 30 ? 100% of non nitrogen fertilization (NNF). Soil physico-chemical properties and growth and yield potential of silage corn were examined. The tested soils showed strong alkali and saline properties with low contents of organic matter and available phosphate while contents of exchangeable sodium and magnesium were high. Soil salinity increased during cultivation of summer crop. However, corn was not affected by salt content. The fresh weight of GMC at incorporation time was 18,345 kg ha<SUP>-1</SUP>. Content of total nitrogen was 3.09% and the C/N ratio was 12.8 at incorporation time. Fresh and dry matter yield of silage corn were higher in the order of N30% reduction, CF, N50% reduction, N70% reduction, N100% reduction and NNF. Fresh and dry matter yield potential of silage corn for N30% reduction were comparable to those of CF. Bulk density of the soil decreased with incorporation of GMC, while porosity was increased. The soil pH decreased while content of exchangeable calcium, available phosphate, and organic matter increased. Also contents of exchangeable sodium and potassium decreased with incorporation of GMC. The data indicate that incorporation of hairy vetch can improve soil physical and chemical properties and reduce nitrogen fertilizer application especially for alkali saline reclaimed soil such as Saemangeum reclaimed land.

      • KCI등재
      • KCI등재

        간척지 토양특성에 알맞은 사료작물 작부체계 연구

        양창휴(Chang-Hyu Yang),이장희(Jang-Hee Lee),김선(Sun Kim),정재혁(Jae-Hyeok Jeong),백남현(Nam-Hyun Ba다),최원영(Weon-Young Choi),이상복(Sang-Bok Lee),김영두(Young-Doo Kim),김시주(Si-Ju Kim),이경보(Gyeong-Bo Lee) 한국토양비료학회 2012 한국토양비료학회지 Vol.45 No.3

        본 연구는 새만금간척지 광활 및 계화지구 신간척지에서 조사료의 안정생산을 위한 적정 작부체계를 설정코자 2009년 10월부터 2011년 10월까지 수행하였다. 동계 사료작물로 청보리 (영양), 호밀 (곡우), 이탈리안 라이그라스 (passerel plus)와 하계 사료작물로 옥수수 (광평옥), 수수×수단그라스 (G7)를 재배하여 토양화학성, 양분흡수량, 사료가치, 생육 및 수량성을 검토하였다. 시험전 토양은 유기물, 유효인산 및 치환성칼슘 함량이 매우 적었고 치환성마그네슘?나트륨 함량이 많은 알칼리성 염류토양 이었다. 재배기간 동안 토양염농도 변화는 0.2%이하를 나타냈고 염피해는 없었다. 동계 사료작물 입모율은 호밀 〉 청보리 〉이탈리안 라이그라스 순으로 양호하였고 생초 및 건물수량은 이탈리안 라이그라스 〉 호밀 〉 청보리 순으로 높았다. 조단백 함량은 이탈리안 라이그라스 〉 청보리 〉 호밀 순으로 총가소화영양 함량은 청보리 〉 이탈리안 라이그라스 〉 호밀 순으로 많은 경향을 나타냈다. 하계 사료작물 조단백질 및 중성용매불용성섬유, 산성용매불용성섬유 함량은 수수×수단 그라스에서 총가소화영양 함량은 옥수수에서 높았다. 동?하계 사료작물 경엽 및 곡실의 무기양분 함량은 이탈리안 라이그라스와 옥수수에서 높았다. 시험 후 토양화학성은 pH가 낮아지고 총질소 및 유효인산, 치환성칼륨?칼슘 함량이 증가한 반면에 유기물, 치환성마그네슘?나트륨 함량이 감소되는 경향을 나타냈다. 동작물과 하작물을 연계한 수량성 (‘10∼’11)에서 생초수량은 청보리 - 옥수수 (74,740 kg ha<SUP>-1</SUP>) 대비 IRG - 수수×수단그라스 10%, IRG - 옥수수 7%, 호밀 - 수수×수단그라스 6%, 호밀 - 옥수수 및 청보리 - 수수×수단그라스 3% 증수되었고 건물수량은 청보리 - 옥수수 (20,280kg ha<SUP>-1</SUP>) 대비 IRG - 수수×수단그라스 7%, 호밀 - 수수×수단그라스 6%, IRG - 옥수수 3%, 청보리 - 수수×수단그라스 3%, 호밀 - 옥수수 3% 증수되었으며 TDN수량은 청보리 - 옥수수 (13,830 kg ha<SUP>-1</SUP>) 대비 IRG - 수수×수단그라스 2%, 청보리 - 수수×수단그라스 및 IRG - 옥수수 1% 증수되었다. 따라서 생초, 건물수량 및 TDN수량이 높은 “IRG -수수×수단그라스” 및 “청보리 - 수수×수단그라스” 조합을 신간척지 토양특성 (사양토, 배수약간불량, 토양염농도 0.2% 이하)에 알맞은 사료작물 작부조합으로 판단되었다. This study was conducted to find out the optimum cropping system for the stable production of forage crops in the newly reclaimed land located at Gwanghwal and Gyehwa region of Saemangum reclaimed tide land from October, 2009 to October, 2011. Whole crop barley (WCB), Rye, Italyan-ryegrass (IRG) as winter crops and Corn, Sorghum×sudangrass hybrid (SSH) as summer crops were cultivated. Soil chemical properties, nutrient uptake, feed value, growth and yield were examinated. The testing soil was showed saline alkali soil where the contents of organic matter, available phosphate and exchangeable calcium were very low, while exchangeable sodium and magnesium were higher. Changes of soil salinity during the growing season of forage crops were less than 0.2%, and the growth of forage crops was not affected by salt injury. Standing rates of winter crops were higher in the order of Rye, WCB, and IRG, while the dry matter yield of winter crops was higher in the order of IRG, Rye and WCB. The highest crude protein (CP) content was recorded in IRG, and total digestive nutrients (TDN) contents were increased in the order of WCB, IRG, and Rye. The TDN content was higher in corn, whereas other feed value was higher in SSH. The content of mineral nutrients on stem, leaf and grain in IRG, Corn were high. After experiment pH was lowed, contents of exchangeable magnesium, sodium and organic matter were decreased while contents of total nitrogen, available phosphate and exchangeable potassium, calcium were increased. Winer crops and summer crops after continually cultivating in cropping system, fresh matter yield increased, compared to WCB-Corn (74,740 kg ha<SUP>-1</SUP>), IRG-SSH 10%, IRG-Corn 7%, Rye-SSH 6%, Rye-Corn and WCB-SSH 3%. Dry matter yield increased, compared to WCB-Corn (20,280 kg ha<SUP>-1</SUP>), IRG-SSH 7%, Rye-SSH 6%, IRG-Corn/Rye-Corn/WCB -SSH 3%. The TDN yield increased, compared to WCB-Corn (13,830 kg ha<SUP>-1</SUP>), IRG-SSH 2%, WCB-SSH and IRG-Corn 1%. Therefore, we suggest that the crop combination of IRG-SSH and WCB-SSH would be preferred for silage stable production.

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