BIM 기반 품질 검증의 설계 단계 적용을 위한 기초 연구

조진성(Jo Jin-Sung),추승연(Choo Seung-Yeon) 대한건축학회 2011 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.31 No.2(구조계)

Today, BIM has become an new paradigm in domestic construction industry. The modeling of construction projects is not an end itself, instead, with the help of three-dimensional assessment of design solutions, it aims at improving quality and the information exchange between the parties, reducing the number of design errors, increasing the efficiency of the design process. Thus, this paper studies pilot quality assurance process that improve the quality of BIM files and make the entire design process more productive, and purpose applying pilot quality assurance at BIM-based integrated design process in order to help establish BIM to domestic efficiently.

지속가능한 건축을 위한 초기 설계 단계에서의 Green BIM 적용 방안에 관한 연구

조진성(Jo Jin-Sung),추승연(Choo Seung-Yeon),최무혁(Choi Moo-Hyuck) 대한건축학회 2011 대한건축학회논문집 Vol.27 No.4

Since in the 1990s, architects have begun to apply sustainability to building design and to minimize the effect of buildings on the environment. despite these efforts, in actual application on design, the solution to reduce building energy consumption was only limited in mechanical equipment system or insulation performance of building envelope, but it forced up the cost of design definitely. The sustainable architecture couldn't widen its territory. Furthermore, it was limited on large public projects. Green BIM is the other way to achieve the sustainable architecture. BIM-based energy simulation tool in the Green BIM is a method to measure the energy consumption which influenced by a architectural elements : envelope, form and plan of building fixed in the early design stage. In the early design stage, by achieving the more efficient counterplan through BIM-based energy performance analysis, it will be able to realize the effective low-energy building design. This study aims to develop application method of BIM-based energy performance analysis tools in practice. Solar radiation, solar exposure and thermal loads are compared between each alternative, by using the energy simulation tool on existing buildings. Finally, this application method helps architect's design decision in the early design stage.

주거단지 배치계획을 위한 증강현실 기술의 활용방안에 관한 기초연구

류정림,추승연,조진성,Ryu, Jung-Rim,Choo, Seung-Yeon,Jo, Jin-Sung 한국주거학회 2010 한국주거학회 논문집 Vol.21 No.4

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.

동적 타액선 신티그라피에서 기능적 매개변수 지표를 활용한 정량 분석의 유용성

신채호,김봉수,조용귀,조진우,진성은,표성재,Shin, Chae Ho,Kim, Bong Su,Cho, Yong Gyi,Jo, Jin Woo,JIn, Sung Eun,Pyo, Sung Jai 대한핵의학기술학회 2015 핵의학 기술 Vol.19 No.2

동적 타액선 신티그라피는 비침습적인 방법으로 타액선의 기능을 평가하는데 널리 사용되어 왔다. 본 연구에서는 타액선 신티그라피의 시간-방사능 곡선에서 다양한 기능적 매개변수지표를 측정하고 구강건조증 환자 그룹과 건강한 Control 그룹과 비교를 통해 유용성을 알아보고자 한다. 2014년 12월부터 2015년 2월까지 구강 건조증으로 내원하여 동적 타액선 신티그라피를 시행한 환자 그룹 30명과 건강한 Control 그룹 10명을 대상으로 하였다. 검사방법은 370 MBq의 $^{99m}Tc$-과산화테크네슘을 정맥으로 순간 주사 후 약 30분간 동적 타액선 신티그라피를 연속 촬영하였으며, 주사 후 20분째에 최타 자극제로 비타민C 파우더를 이용하였다. 정량분석은 이하선과 악하선의 시간-방사능 곡선을 통해 기능적 매개변수 지표를 획득하고, 통계 프로그램을 이용하여 구강 건조증 환자와 건강한 Control 그룹과 비교하였다. 동적 타액선 신티그라피에서 이하선과 악하선의 기능적 매개변수 지표인 섭취율(Uptake Ratio, UR), 최대 방사능 시간(Time at Maximum counts, Tmax), 최소 방사능 시간(Time at Minimum counts, Tmin), 최대 축적율(Maximum Accumulation, MA), 축적속도(Accumulation Velocity), 최대 배출율(Maximum Secretion, MS), 최대 자극 배출율(Maximum Stimulation Secretion, MSS), 배출속도(Secretion Velocity, SV)를 각각 측정하였다. 구강 건조증 환자와 건강한 Control 그룹간의 이하선과 악하선의 기능적 매개변수 지표 비교에서는 최소 방사능 시간을 제외한 모든 지표에서 건강한 Control 그룹이 환자 그룹에 비하여 유의성 있게 높게 측정되었으며, 시간에 따른 변화량도 Control 그룹이 환자 그룹에 비하여 유의성 있게 변화량이 크게 측정 되었다. 동적 타액선 신티그라피에서 다양한 기능적 매개변수 지표를 이용한 정량분석은 구강 건조증 환자의 타액선 기능을 평가하는데 객관적이고 표준화된 정보를 제공해 줄 것으로 사료된다. Purpose This study was to evaluate the usefulness through the comparison of patients group and healthy control group by acquiring a variety of functional parameters index from time-activity curves of salivary gland scintigraphy using $^{99m}Tc$. Materials and Methods From December 2014 to February 2015 with the targets of 30 patients in the patient group who presented themselves with xerostomia and underwent the salivary gland scan and 10 people in healthy control group, approximately 30 minutes of dynamic Scan was carried out after the intravenous bolus injection of 370 MBq of $^{99m}TcO_4{^-}$ and per os stimulation with Vitamin C powder 20 minutes after the injection. The method of quantitative analysis was as follows, the time-activity curve was drawn after the parotid gland and submandible gland were prescribed as a region of interest, a variety of functional parameters index was obtained in each position of the curve, and the patients group and the control group were compared. Results As for the methods applied in comparison and measurement, uptake ratio (UR), time at maximum counts (Tmax), time at minimum counts (Tmin), maximum accumulation (MA), accumulation velocity, maximum secretion (MS), maximum stimulation secretion (MSS), and secretion velocity (SV) were used. In the comparison of functional parameters index of patient group and normal group, the healthy normal group showed significant difference compared to the patient group in all indices except for the minimum radioactivity time (Tmin), and also in terms of variation over time the normal group showed significant difference compared to the patient group (p<0.05). Conclusion Consequently, it was considered that the quantitative analysis that used a variety of functional parameters index would be useful for evaluating the function of the salivary glands of the patients with xerostomia as an objective and standardized information.

소아 두부외상 환자에서의 반복적인 두부 CT 검사의 유용성

조호준 ( Ho Jun Jo ),임용수 ( Yong Su Lim ),김진주 ( Jin Joo Kim ),조진성 ( Jin Seong Cho ),현성열 ( Sung Youl Hyun ),양혁준 ( Hyuk Jun Yang ),이근 ( Gun Lee ) 대한외상학회 2015 大韓外傷學會誌 Vol.28 No.3

Purpose: Traumatic brain injury (TBI) is the most common cause of pediatric trauma patients came to the emergency department. Without guidelines, many of these children underwent repeat brain computed tomography (CT). The purpose of this study was to evaluate the value of repeat brain CT in children with TBI. Methods: We conducted a retrospective study of TBI in children younger than 19 years of age who visited the emergency department (ED) from January 2011 to December 2012. According to the Glasgow Coma Scale (GCS) and Pediatric Glasgow Coma Scale score of the patients, study population divided in three groups. Clinical data collected included age, mechanism of injury, type of TBI, and outcome. Results: A Total 83 children with TBI received repeat brain CT. There were no need for neurosurgical intervention in mild TBI (GCS score 13-15) group who underwent routine repeat CT. 4 patients of mild TBI group, received repeat brain CT due to neurological deterioration, and one patient underwent neurosurgical intervention. Routine repeat CT identified 12 patients with radiographic progression. One patient underwent neurosurgical intervention based on the second brain CT finding, who belonged to the moderate TBI (GCS score 9-12) group. Conclusion: Our study showed that children with mild TBI can be observed without repeat brain CT when there is no evidence of neurologic deterioration. Further study is needed for establish indication for repetition of CT scan in order to avoid unnecessary radiation exposure of children. [ J Trauma Inj 2015; 28: 149-157 ]

경미한 외상을 받은 소아,청소년 환자의 지연 진단에 대한 고찰

최지안 ( Jee Ahn Choi ),박원빈 ( Won Bin Park ),김진주 ( Jin Joo Kim ),조진성 ( Jin Sung Jo ),김재광 ( Jae Kwang Kim ),임용수 ( Yong Su Lim ),현성열 ( Sung Youl Hyun ),정호성 ( Ho Seong Jeong ),양혁준 ( Hyuk Jun Yang ),이근 ( Gun 대한외상학회 2009 大韓外傷學會誌 Vol.22 No.2

Purpose: To analyze delayed diagnosis, we collected date on pediatric and adolescent patients who had been admitted to the Emergency Department with injuries due to minor trauma. Methods: We retrospectively analyzed the age distribution, trauma mechanism, time interval for each affected body region at delayed diagnosis, hospital stay, and outcome for 161 pediatric and adolescent patients who had been admitted to the Emergent Department of Gachon University Gil Hospital from January 2006 to September 2008. Results: The incidence of delayed diagnosis in pediatric and adolescent trauma was 11.8% in our retrospective review of 161 pediatric and adolescent patients. Lengths of hospitalization were longer in patients with delayed diagnosis (p<0.05). Patients with delayed diagnosis were more often transferred to other hospitals than patients with non-delayed diagnosis (p<0.05). The time intervals for each different affected body regions at delayed diagnosis were significantly different, but the hospital stays were not. There were no statistical significance to age on affected body region. Conclusion: From this study, we found that admission result and hospital stay were statistically significant differences between the delayed-diagnosis patient group and the non-delayed-diagnosis patient group. Finally, we must follow up pediatric and adolescent patients with minor trauma, closely considering missed injuries. (J Korean Soc Traumatol 2009;22:212-7)

혈관 색전술을 시행한 외상 환자에 대한 임상적 고찰

선종효 ( Jong Hyo Sun ),김재광 ( Jae Kwang Kim ),임용수 ( Yong Su Lim ),김진주 ( Jin Joo Kim ),조진성 ( Jin Sung Jo ),현성열 ( Sung Youl Hyun ),정호성 ( Ho Sung Jeong ),양혁준 ( Hyuk Jun Yang ),이근 ( Gun Lee ),김정호 ( Jeong Ho 대한외상학회 2009 大韓外傷學會誌 Vol.22 No.2

Purpose: Hemodynamically unstable pelvic fractures represent therapeutic challenges for the trauma team. The authors of this article have studied the clinical profiles of the angiographic intervention population at the emergency department during four years (2005~2009) to develop clinical guidelines for preventing deaths due to multiple trauma and for predicting the prognosis during initial evaluation. Methods: We performed a retrospective review of 34 patients who had undergone angiographic interventions at the emergency department and compared the differences in clinical variables between survivors and non-survivors. Results: Representative values were compared between survivors and non-survivors: RTS (revised trauma score) 7.006 (6.376~7.841) vs. 6.128 (4.298~6.494), PRC (packed red cell) units 5.5 (2.0~11.0) vs. 15 (8.0~18.5), and lactate (mmol/L) 3.0 (1.0~7.0) vs. 8.5 (3.5~10.5). RTS (p<0.01) and PRC units before angiographic interventions (p=0.01) and lactate (p=0.02) had correlations to the final outcomes. Conclusion: The availability of an angiographic suite and persistent hypotension after adequate fluid resuscitation for pelvic trauma are good indications of angiographic intervention for pelvic hemorrhage. (J Korean Soc Traumatol 2009;22:248-53)