• RED RIBBON
• /
• s.68
• /
• pp.16-17
• /
• 2006

에이즈는 다른 질병과 달리 시시각각으로 변화하는 것으로 알려져 있다. 감염인이든, 의료인이든 에이즈와 관련 있는 사람들은 언제나 에이즈에 관한 정보를 입수할 필요가 있다. 레드리본은 감연인 및 에이즈 관련 담당자들이 필요한 정보를 얻을 수 있는 다양한 경로를 제공하고자 각계 전문가들이 추천하는 해외 에이즈 관련 사이트를 총 6회에 걸쳐 소개할 예정이다.

• Journal of Wetlands Research
• /
• v.23 no.2
• /
• pp.189-200
• /
• 2021

To improve the water quality of agricultural reservoirs, constructed wetlands are applied in many places. These are technologies that establish ecosystems and important design factors include water depth distribution, inflow and outflow, water flow distribution, hydraulic residence time, water quality treatment efficiency, aspect ratio, and the distribution of open water and covered water surfaces. For high efficiency during the operation of a constructed wetland, the design needs to be optimized and this requires consideration of the different types and length of the intake dam as well as the type and connection of wetland cells. Therefore, this study was conducted to investigate and suggest factors that needs to be considered during the design and for efficient operation measures through field surveys of 23 constructed wetlands that have been established and operated in agricultural reservoirs. Results of the field investigation shows that several sites were being operated improperly due to the malfunctioning or failure of the water level sensors, sedimentation in the intake dam, and clogging of the mechanical sluice frames. In addition, it was found that as the length of the inlet channel increases, the ecological disconnection between the intake dam upstream and the wetland outlet downstream also increases and was identified as a problem. Most of the wetlands are composed of 2 to 5 cells which can result to poor hydraulic efficiency and difficulty in management if they are too large. Moreover, it was found that the flow through a small wetland can be inadequate when there are too many cells due to excessive amounts of headloss.

• Journal of the korean Society of Automotive Engineers
• /
• v.4 no.1
• /
• pp.56-58
• /
• 1982

이 보고서는 한국 자동차공업 협동조합 미주 주재원 장진식 부장이 미국 체류시 입수한 정보로써 "재미 자동차산업인협회(KPAI)"와 "재미 한국과학기술자협회(ksea)"가 공동으로 주최한 세미 나에서 발표된 내용임을 소개합니다. 나에서 발표된 내용임을 소개합니다.

• Proceedings of the Korean Society for Information Management Conference
• /
• 2000.08a
• /
• pp.143-146
• /
• 2000

본 연구에서는 국내 무용인들의 정보요구를 수렴한 학술정보 시스템의 구축 방안을 제시하기 위해, 현재 운영되고 있는 국내 web 무용정보의 정보량과 품질을 분석하였고, 설문조사를 통해 무용정보 시스템의 실질적인 이용자인 국내 무용인의 정보이용 현황 및 정보요구를 분석하였다. 1999년 8월 현재 국내 무용 web site는 68개이고, 이중 98.6% 가 구축하고 있는 web 문서의 수는 40 페이지 미만이었다. 시스템과 이용자 인터페이스 측면과 정보제공 측면으로 품질을 평가한 결과 대부분이 개략적이고 형식적으로 구축되어 이들로부터 유용한 정보를 입수하는 것은 기대할 수 없는 상황이었다. 국내 무용인을 대상으로 설문조사를 한 결과 대부분의 무용인들은 web에서 무용정보를 이용하는 것을 중요하다고 느끼고 있으나, 국내 web 무용정보가 부실하기 때문에 이용률이 저조했다. 따라서 본 연구에서는 국내 무용인들에게 보다 실질적이고 효과적인 무용정보 시스템을 구축하기 위한 기초 연구로 기존 국내 Web 무용정보를 분석하여 문제점과 개선점을 제시하였고, 실질적인 국내 무용인의 구체적인 정보요구를 파악하였다.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.12 no.8
• /
• pp.3374-3383
• /
• 2011

In this study, numerical analyses for slamming impact phenomena have been carried out using a 2-dimensional wedge shaped structure having finite deadrise angles. Fluid is assumed incompressible and entry speed of the structure is kept constant. Geo-reconstruct(or PLIC-VOF) scheme is used for the tracking of the deforming free surface. Numerical analyses are carried out for the deadrise angles of $10^{\circ}$, $20^{\circ}$ and $30^{\circ}$. For each deadrise angle, variations are made for the grid size on the wedge bottom and for the entry speed. The magnitude and the location of impact pressure and the total drag force, which is the summation of pressure distributed at the bottom of the structure, are analyzed. Results of the analyses are compared with the results of the Dobrovol'skaya similarity solutions, the asymptotic solution based on the Wagner method and the solution of Boundary Element Method(BEM).

• KSBB Journal
• /
• v.16 no.4
• /
• pp.403-408
• /
• 2001

Distillation condensate generated from downstream processing of microbial alcohol fermentation imposes a serious burden to biological wastewater treatment or anaerobic digestion due to its high contents of SS (suspended solids) and TN (total nitrogen), A pilot scale microfiltration of the stillage condensate with a stainless steel SCEPTER membrane of 0.1 ${\mu}$m pore size was carried out to remove SS which was mostly composed of microbial cell residue. A stable permeate flux was achieved when the decanter effluent containing 0.7% of SS was filtered under the conditions of X10 VCR (volume concentration ratio), 2.5 bar of TMP (transmembrane pressure), and 60$^{\circ}C$. When stillage condensate with 2.6% SS was treated directly with microfiltration, VCR below X3 was recommended for a long duration of filtration. The permeate and retentate obtained from microfiltration were recycled to make-up medium of fermentation. Adding permeate or retentate up to 30% of fermentation volume showed no distinguished undesirable influence during the course of alcohol fermentation. Although only slight improvements in the final amount of CO$_2$ evolution and alcohol content were observed, fermentation rate increased so that the required time to reach 450 L/ton of CO$_2$ evolution was shortened to 72% of that with normal media.

• KOREAN POULTRY JOURNAL
• /
• v.6 no.6 s.56
• /
• pp.76-81
• /
• 1974

지난달 월간양계의 업계정보란에 소개한바 있는 축산시험장 설동섭박사팀의 신종비육우 샤로레 잡종개발에 대한 원고가 입수 되었다. 설박사팀이 64년부터 우리나라의 소고기 자급을 위해 새로운 품종의 비육우 개발에 착수해 오다 70년 4월에 프랑스 샤로레 냉동정액을 들여와 한우 130마리에 인공수정해 여기서 생산된 샤로레 1대 잡종을 지난 18개월간 사육 한우 216kg보다 무거운 636kg의 잡종을 개발 개가를 올린바 있다. 종전 한우의 3배이익을 올릴 수 있는 샤로레 잡종시험은 모든 축산인에 관심사가 아닐 수 없다. 원고를 보내준 설동섭 박사께 감사한다.

• STIMA Bulletin
• /
• s.5
• /
• pp.14-17
• /
• 2006

전자정보 형태로 서비스를 제공함에 따라 자료실 공간이용률이 떨어지는 것을 막기 위해 학술정보는 전자형태로 제공함을 지향하는 반면, 직원들의 교양과 품격을 높일 수 있는 정보제공을 위해 오프라인 서비스를 강화하고자 한다. 일명 '비타민 북'이라는 브랜드로 교양도서를 구입하여 별도 배가 및 운영을 하고 있다. '비타민 북'은 매월 20여권의 교양도서를 선정하여 입수하며, 이용률을 높이기 위해 일반 학술서적과 달리 대출기간 및 대출권수 등을 달리 적용하여 제공하고 있다.

• The Journal of the Korea Contents Association
• /
• v.11 no.12
• /
• pp.466-474
• /
• 2011

Under the knowledge-based economy in 21C, the convergence and complexity in science and technology are being more active. Therefore, we have science and technology are classified properly, make not easy to construct the system to new next generation area. Thus we suggest the systematic solution method to flexibly extend classification scheme in order for content management and service organizations. In this way, we expect that the difficult of classification scheme management is minimized and the expense of it is spared.

• Korean Journal of Soil Science and Fertilizer
• /
• v.6 no.3
• /
• pp.173-177
• /
• 1973

The concept of "adaptability to heavy nitrogen" of rice plant was reconsidered in view of productivity with Jinheung (leading local variety) and IR667 (semi tropical variety) under the field condition. The results are as follows; 1. IR667 had higher yield and leaf area index at high nitrogen level than Jinheung. 2. IR667 increased more panicles, spikelets, filled grain ratio and grain weight by increasing nitrogen. 3. IR667 showed higher productive efficiency of grain and leaf area per unit nitrogen. 4. IR667 was higher in the productive efficiency of grain per unit leaf area. 5. IR667 appeared as panicle and spikelet number type and Jinheung as grain weight type according to yield components. 6. These results indicate that IR667 has greater productive adaptability to heavy nitrogen under the field condition.