연구발표논문초록 ( 공정씨스템 (Ⅰ) ) : 증류단을 이용한 분리공정의 저차원정상상태모델

조영상,원종국 ( Young Sang Cho,Jong Kuk Won ) 한국화학공학회 1986 추계학술발표회 Vol.- No.-

스트럿-타이 모델 설계법을 적용한 구조 BIM의 자동철근배근 시스템 개발에 관한 연구

조영상(Cho, Young-Sang),장현석(Jang, Hyun-Suk),정근석(Jeong, Geun-Seok) 대한건축학회 2016 大韓建築學會論文集 : 構造系 Vol.32 No.8

Research about development of Automatic Rebar Placement System applied Strut-Tie model is conducted. Existing Structural BIM related research, Rebar Placement on structural member of which stress change linearly is carried out, but in this research, problem of complicated and repeated calculation process of Strut-Tie Design Method, a calculation method to design disturbed region by analyzing the work of precedent researchers, is understood, the following potential problem is being suggested and solution of this problem approached from BIM standpoint is suggested. For the solution of such problems, Automatic Placement of Structural BIM was suggested in this study, and it is considered that if Structural BIM is brought in to when Strut-Tie model design about Deep Beams, a structural member disturbed region, is progressed, time for Structural Document Stage can be saved and especially in the case of design method with complicated design process, the effect is considered to be huge. Furthermore, calculated value, designed in Strut-Tie form that suits stress path through finite element analysis about disturbed region and structural BIM research that reflects this, it would be much efficient in designing disturbed region.

IMT - 2000 UMMS의 효율적 배치방안 연구

조영상(Young-sang Cho),박인수(In-soo Park),박용진(Yong-jin Park),박철희(Chul-hye Park) 한국정보과학회 2001 한국정보과학회 학술발표논문집 Vol.28 No.1A

IMT-2000에서의 통합 메시징 시스템(Unified Messaging System)은 음성메시지, 팩스 메시지, 이메일 메시지, 비디오 메시지 등과 같이 다양한 미디어 컨텐츠를 포함하는 메시지를 통합 관리하며, 메시지간 매체 변환 기능을 수행하여 언제, 어디서나, 단말에 상관없이 메시지 서비스를 제공 한다. 차세대 UMS라고 할 수 있는 IMT-2000 UMMS(Unified Multimedia Messaging System)는 전화망, 데이터망, 및 이동통신망 등의 성격이 서로 다른 네트워크 및 각 네트워크 상에서 기존 메시징 서비스를 통합한 환경에서 각 단말에게 메시지 배달, 메시지 저장 및 메시지 통보 등의 기능을 제공하게 된다. IMT-2000 UMMS를 구성하는 기능 요소들은 토폴로지 설계에 따라 동일 네트워크 또는 분산 네트워크 상에 존재할 수 있다. 본 고에서는 시스템 설계 시 트래픽 특성 및 이용자 성향을 고려한 효율적 시스템 배치 방안에 관해 기술한다.

S-BIM 기반 독립기초 자동 철근배근시스템 구축에 관한 연구

조영상(Cho, Young-Sang),김마리(Kim, Marie),홍성철(Hong, Sung-Chul) 대한건축학회 2013 大韓建築學會論文集 : 構造系 Vol.29 No.11

The purpose of this study is to enhance productivity and economic value with precise object information generation and reinforcement quantity take-off by developing the Automation Reinforcement Placement System of Foundation (ARPF). This study was conducted by selecting the most basic form, independent footing, and no force was applied on the foundation other than axial force. For the development of ARPF, variables that should be input into the typical programs directly by users were minimized through developing the reinforcement placement algorithm by using visual C# based on the reinforced concrete structure design standard. The process of reinforcement detail placement formation was performed in the Tekla Structure (TS) that has outstanding accessibility and usability of API. Objects made by applying ARPF enable information confirmation and modification, as typical ones. Through this process using ARPF, rapid and precise reinforcement quantity take-off and footing bar placement are possible. If modeling is performed on the Tekla Structures by using ARPF, a detailed 3D reinforcement placing drawing, not 2D, can be created. It is expected that this method may take a smaller amount of time and effort than the typical drawing generation method that users had to generate objects or input information themselves.

재래 및 비파괴검사를 이용한 고강도 콘크리트의 재료특성에 관한 연구

조영상(Cho, Young Sang) 한국콘크리트학회 2001 한국콘크리트학회 학술대회 논문집 Vol.2001 No.5

모의 부재 및 Mock-up 실험을 통한 콘크리트 강도 추정 시스템 구축에 관한 연구

조영상(Cho Young-Sang),김민숙(Kim Min-Suk) 한국구조물진단유지관리학회 2005 한국구조물진단학회 학술발표회논문집 Vol.9 No.2

Securing the required strength of concrete is critical factor in evaluating stability of structure. An accurate and reasonable estimation influences to construction schedule and quality control. But the tests of cylinders and core samples doesn"t represent a whole structure in actuality. So this study is focused on a more accurate estimation using the non-destructive tests. Impact Echo method and SASW method, and artificial neural networks for reliance. Vp and Vr have been achieved in using the non-destructive tests increase as age and there are the relationship between each other. Using Artificial neural networks in parallel can give more accurate estimation than using only non-destructive tests.

온라인 친화 공간에서의 영어쓰기 활동:

조영상(Cho Young sang) 학습자중심교과교육학회 2015 학습자중심교과교육연구 Vol.15 No.12

본 연구는 영어를 외국어로 사용하고 있는 학습자가 Lang-8.com이라고 하는 온라인 친화 공간(affinity space)에서 행하고 있는 활동을 살펴보고 그것이 영어쓰기 활동에 미 치는 영향에 대하여 언어학습의 사회문화적 접근법을 이론적 기반으로 하여 조사하였 다. 인터뷰, 관찰, 영작문 샘플 등 다양한 자료를 분석한 결과, 연구대상자는 온라인 친 화 공간이 제공하는 세 가지 요인, 즉, 첫째, 자아를 나타낼 수 있는 소재를 글감으로 사 용할 수 있는 안전한 학습 공간, 둘째, 사회적 상호작용 및 피드백을 제공해 주는 실질적 인 청중의 존재, 그리고 마지막으로, 서로의 다양한 지식을 공유할 수 있는 협업의 가능 성 등으로 인해 영어쓰기에 대한 강한 흥미와 동기를 갖게 되고 이는 활발한 학습 활동 으로 이어지는 것으로 조사되었다. 이러한 온라인 친화 공간이 제공하는 학습 환경의 특 성을 토대로 오프라인 영어수업에서 학습자들의 동기를 유도할 수 있는 방법에 대해 논 의하였다. The present study investigates how one Japanese female English language learner’s participation in an online affinity space, Lang-8.com, influences her engagement with English writing. Sociocultural perspectives on language and literacy are adopted as a theoretical framework to closely examine the participant’s literate and social practices in the online space. The analysis of data (e.g., interviews, fieldnotes, and online journal entries) suggests that the participant is fully engaged in L2 writing for three reasons: 1) safe learning environments to use her own lifeworld identities as writing resources; 2) existence of a real audience for social interactions and authentic feedback; and 3) multiple opportunities for collaboration to share various items of knowledge. Based on these findings, this study discusses some of the possible ways to make English language classrooms more motivating and meaningful for English language learners.

S-BIM 기반 철근콘크리트 구조 매트기초 자동배근시스템 구축에 관한 연구

조영상(Cho, Young-Sang),진현아(Jin, Hyun-Ah),장현석(Jang, Hyun-Suk),홍성철(Hong, Sung-Chul) 대한건축학회 2014 大韓建築學會論文集 : 構造系 Vol.30 No.4

The purpose of this study is to develop an add-in program between the integrated design platform that can produce physical structural model and structural analysis and design model tool which contains the result of structural analysis and design such as member geometry and internal forces. The developed add-in module is to convert the result of structural analysis and design such as structural geometry and internal forces from the analysis to the integrated design platform and to place rebars. The automatic rebar placement system for mat foundation was carried out and as a result, it turned out to be implemented quickly and accurately by applying information derived through structural design. While users can implement rebar placement modeling by using structural drawings in Tekla Structure but it is hard to implement and time-consuming, time and effort for implementation will be reduced if using the automatic rebar placement system. This development is to increase production and economic efficiency by producing accurate shop drawing in the short period of time and generating the accurate quantity take-off of rebar on the reinforced concrete structures.

유기농 토마토의 과실 생장 및 조성에 미치는 토마토 잔사물을 이용하여 제조한 액체비료의 시용 효과

조영상 ( Young-sang Cho ) 전북대학교 농업과학기술연구소 2021 농업생명과학연구 Vol.52 No.1

토마토를 재배하고 남은 부산물을 이용하여 만든 액비의 실용화 가능성에 대한 연구를 수행하고 있으며 이중 비료의 시비량 차이가 유기농 토마토의 무기성분과 비타민 등의 영양성분 차이에 미치는 영향을 구명하고자 본 연구를 수행하였으며 그 결과는 다음과 같았다. 1. 토마토 부산물 액비를 처리하고 정식 35일과 96일 후 조사한 지상부 생육에서 35일 후 화방수의 처리간 차이가 인정되었지만 35일 후의 초장 및 절간수 그리고 96일 후 초장, 절간수, 화방수에서 처리간 통계적인 차이가 인정되지 않았다. 2. 토마토 부산물 액비처리가 토마토의 수량, 과일의 길이 및 직경, 그리고 과중에 뚜렷한 영향을 미치지 못하였다. 3. 토마토 부산물 액비의 처리량이 정식후 시간이 경과함에 따라 토마토 과일의 당함량이 증가하였지만 토마토 부산물 액비처리량에 따른 처리간 차이가 인정되지 않았다. 4. 토마토 부산물 액비를 처리하고 96일 후 분석한 항산산화물질 함량과 항산화반응에서 페놀함량의 처리간 차이가 인정되었지만 플라보노이드 함량과 DPPH반응에서 차이가 없었다. 5. 토마토 부산물 액비를 처리하고 정식 96일 후 과육내 무기물 함량을 분석한 결과 P, K, Mg, 및 Mn 용량은 p≤0.05 수준의 차이가 인정되었다. 그러나 Ca, S, Fe 및 Na 함량은 뚜렷한 차이를 발견할 수 없었다. This study was conducted to examine the influence of tomato residual products as natural organic fertilizer on the growth and fruit quality of organically grown tomatoes. To achieve the purpose of research objectives, tomato seedlings were transplanted to plastic house soil and growth characteristics were investigated 35 and 96 days after transplanting. The contents of vitamins and mineral nutrients were also analyzed to evaluate fruit quality of organically grown tomatoes. The results are as follows: In the analysis results of soil conducted before transplanting of tomatoes, the pH, EC, and concentrations of K, Ca and Mg were 6.84, 3.35 dSㆍm^-1, 1.21, 11.8, and 2.02 cmol+/kg, respectively. The concentrations of P₂O₅, NH₄-N, and NO₃-N were 476, 0.0 and 68.6 mgㆍkg^-1, respectively. In the composition of liquid fertilizer produced from tomato reside, the pH, EC, and concentrations of K, Ca and Mg were 5.62, 1.57 dSㆍm^-1, 63.3, 18.9, and 9.10 cmol+/kg, respectively. The concentrations of P₂O₅, NH₄-N, and NO₃-N were 67.2, 11.3 and 3.85 mgㆍkg^-1, respectively. The number of flower cluster 35 days after transplanting showed significant difference (p≤0.05) with the highest results in 0.6L/㎡ treatment, but plant height and number of nodes 35 days after transplant and plant height, number of nodes, and number of flower cluster 96 days after transplant did not show statistical differences. The application amount of organic liquid fertilizer did not influence on the yield as well as length, width and weight of fruits investigated 96 days after transplant. The sugar contents of tomato fruits increased from July 3 to September 3 in all treatments, but statistical different among treatments was not observed. In analysis results of anti-oxidant contents and anti-oxidation reaction, the phenol content showed statistical different with the highest content in 0.9 L/㎡ treatment. However, flavonoid content and DPPH reaction did not show statistical differences among treatments. In the fruit tissue analysis for mineral nutrient contents 96 days after transplanting, the statistical different were not observed in Ca, S, Fe and Na contents, but observed in P, K, Mg and Mn contents at p≤0.05.

학교건축물 구조시스템 최적화에 관한 연구

조영상 ( Cho Young-sang ),김국제 ( Kim Gook-je ) 한국구조물진단유지관리공학회 2005 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.9 No.2

As the social current becomes more diversified and more variable, many necessities are proposed on the financial investment to the existing school facilities and on the improvement of the educational environments. In each step of new construction, extension, maintenance, and mending of the school facilities, most steel-reinforced concrete buildings take too many things to work and are inevitable to proceed the work during the semester, compared to other structural types of the buildings such as steel structures and precast structures, leading to the environmental and safety-related problems. In this paper, the reseawas rch made on the Staggered Truss system, one of the steel structure systems, applying the system to the public school buildings. The Staggered Truss system is suitable to the flexible space of the school building for ‘the 7th Education process’ and excellent to the seismic capabilities.