내·외단열공법 및 온도조건별 냉동냉장창고 외피의 적정 단열계획

강승희,구보경,송승영 대한건축학회 2003 대한건축학회논문집 Vol.19 No.3

It is very important to apply the reasonable insulation method to refrigerated warehouse since temperature difference between storage and outside is so great. However, insulation method for refrigerated warehouse is not expressly provided in the Korean building code and there are few examinations for evaluation of each insulation method. Thus, this study aims to evaluate the economical efficiency of the refrigerated warehouse envelope with different insulation method(inside and outside insulation), temperature condition(0℃, -6℃ and -15℃) and insulation thickness(100㎜, 150㎜ and 200㎜ / 50㎜ or 250㎜). As results, it is proved to have the best economical efficiency when outside insulation method with thickness of 100㎜(0℃ and -6℃) and 150㎜ urethane(-15℃) is applied.

커튼월 단열 앵커링 유닛의 난방에너지 성능 및 경제성 평가

강승희,구보경,주선경,송승영 대한건축학회 2003 대한건축학회논문집 Vol.19 No.12

Curtain wall system has been widely applied to the residential unit of high-rise complex building which is the new trend in a recent construction market. It is very important to improve the insulation performance of curtain wall anchoring unit since it is composed of materials with high thermal conductivity, such as aluminium, steel and so on. Thus this study aims to evaluate the heating energy performance and economical efficiency of various alternatives which are different in position and material of insulation. As results, alternative of inserting the urethane washer & pad and coating the anchoring unit with urethane foam can improve the heating energy performance and L.C.C(Life Cycle Cost) by 6.33% and 0.95%, respectively, as compared with the existing case.

사무직 근로자의 수면의 질 및 직무스트레스와 우울과의 관련성

강미나,강수영,권수정,김현주,배재원,이보연,이예진,임의롬,정다영,조한솔 이화여자대학교 간호과학대학 2013 이화간호학회지 Vol.- No.47

Purpose: The purpose of this study was to understand the degree of depression, sleep quality, job stress and their association among office workers. Method: A self-administered questionnaire was distributed to 147 workers employed in 5 big enterprises, and 5 small and medium enterprises from October 21 to November 21, 2012. The questionnaires included socio-demographic and health-related characteristics, job-related characteristics, sleep quality, job stress (KOSS) and depression (CES-D). Result: Among all subjects, 23.1% was in the depression group (21 points and over in the CES-D score). Depressive level was positively correlated with job stress and quality of sleep. The adjusted odd ratio for the effects of sleep quality and job stress on depression significantly increased in the depression group compared to that of the normal group. Multiple regression analysis revealed that the following factors of influence had combined explanatory powers on depression: BMI, life satisfaction, quality of sleep, and job stress. Conclusion: The study revealed that complicated influences were exerted on the level of depression by variable factors, as well as socio-demographic characteristics, health-related characteristics, quality of sleep, and job stress. Specifically, the level of depression was influenced by the quality of sleep and job stress.

조속기 삼중화 출력모듈 설계에 관한 연구

강영선,오성보 제주대학교 공과대학 첨단기술연구소 2001 尖端技術硏究所論文集 Vol.12 No.2

This paper presents the design of fault-tolerant governor system. There are a lot of troubles in the system of power plant. Also, they occasionally occur in turbine governor system. Therefore, we consider development of the fault-tolerant governor control system about fault detection, fault containment, fault location, fault recovery and fault masking. To construct to system using TMR(triple modular redundancy), we design digital output module with voter, analog output module with voter and flux summing module. Consequently, we achieved good response from simulation of the proposed output module of TMR governor system. We will apply it to the Gas Turbine No. 3 Unit in Cheju Power Plant.

혈액 투석 환자에서 중심정맥 협착에 대한 스텐트 삽입술 : Wallstent Placement

임대승,노상필,이유선,정승현,김보영,이정우,강정아,김정희,이민수,정준용,최시완,정진옥,성인환,이강욱,신영태 충남대학교 의과대학 의학연구소 2002 충남의대잡지 Vol.29 No.1

Stenosis of central vein is a common complication arising after percutaneous subclavian vein catheter insertion performed for temporary vascular access in chronic renal failure patients undergoing hemodialysis. There are several treatment methods for the condition like percutaneous angioplasty(PTA), stent insertion, and surgery, but recent trend is toward PTA and stents. Among the patients diagnosed with chronic renal failure from March 1993 to May 2002 and undergoing hemodialysis through AV fistula, the 14 Patients in whom central vein stenosis arose were selected for the study. A total of 28 percutaneous interventions(5 PTA and 23 stent placement) were performed, and restenosis rate and the time taken till the restenosis in de novo lesions and instant lesions were compared. All 28 cases were operated successfully. The 14 cases that received both anigioplasty and stent placement initially. (de novo lesion : 14 cases), Among the 10 cases with de novo lesion that followed up more than 1 year, 3 cases are currently undergoing hemodialysis without restenosis, and the remaining 7 cases have recurred stenosis with the mean time to restenosis of 10.9 months. In the 7 cases in whom stenosis recurred, 11 interventions were done(instent lesion: 11 cases). 4 of these were using only ballon angioplasty with 100% restenosis rate and the mean time of 3 months until restenosis. The remaining 7 cases were using both balloon angioplasty and stent placement, also with 100% restenosis rate but with the mean time of 12 months until restenosis, which was later than the group receiving only balloon angioplasty. In treating the patients with central vein stenosis, stent placement seems to be more advantageous over PTA in terms of restenosis rate and the mean duration of patency. In the case of instent lesion, inserting the stent for the second time after stenosis recurred lengthened the duration of patency compared to performing balloon angioplasty alone.

A Muti-Resolution Approach to Restaurant Named Entity Recognition in Korean Web

Bo-Yeong Kang,Dae-Won Kim 한국지능시스템학회 2012 INTERNATIONAL JOURNAL of FUZZY LOGIC and INTELLIGE Vol.12 No.4

Named entity recognition (NER) technique can play a crucial role in extracting information from the web. While NER systems with relatively high performances have been developed based on careful manipulation of terms with a statistical model, term mismatches often degrade the performance of such systems because the strings of all the candidate entities are not known a priori. Despite the importance of lexical-level term mismatches for NER systems, however, most NER approaches developed to date utilize only the term string itself and simple term-level features, and do not exploit the semantic features of terms which can handle the variations of terms effectively. As a solution to this problem, here we propose to match the semantic concepts of term units in restaurant named entities (NEs), where these units are automatically generated from multiple resolutions of a semantic tree. As a test experiment, we applied our restaurant NER scheme to 49,153 nouns in Korean restaurant web pages. Our scheme achieved an average accuracy of 87.89% when applied to test data, which was considerably better than the 78.70% accuracy obtained using the baseline system.

VS-FCM: Validity-guided Spatial Fuzzy c-Means Clustering for Image Segmentation

Bo-Yeong Kang,Dae-Won Kim 한국지능시스템학회 2010 INTERNATIONAL JOURNAL of FUZZY LOGIC and INTELLIGE Vol.10 No.1

In this paper a new fuzzy clustering approach to the color clustering problem has been proposed. To deal with the limitations of the traditional FCM algorithm, we propose a spatial homogeneity-based FCM algorithm. Moreover, the cluster validity index is employed to automatically determine the number of clusters for a given image. We refer to this method as VS-FCM algorithm. The effectiveness of the proposed method is demonstrated through various clustering examples.

Two-Phase Chief Complaint Mapping to the UMLS Metathesaurus in Korean Electronic Medical Records

Bo-Yeong Kang,Dae-Won Kim,Hong-Gee Kim IEEE 2009 IEEE transactions on information technology in bio Vol.13 No.1

<P>The task of automatically determining the concepts referred to in chief complaint (CC) data from electronic medical records (EMRs) is an essential component of many EMR applications aimed at biosurveillance for disease outbreaks. Previous approaches that have been used for this concept mapping have mainly relied on term-level matching, whereby the medical terms in the raw text and their synonyms are matched with concepts in a terminology database. These previous approaches, however, have shortcomings that limit their efficacy in CC concept mapping, where the concepts for CC data are often represented by associative terms rather than by synonyms. Therefore, herein we propose a concept mapping scheme based on a two-phase matching approach, especially for application to Korean CCs, which uses term-level complete matching in the first phase and concept-level matching based on concept learning in the second phase. The proposed concept-level matching suggests the method to learn all the terms (associative terms as well as synonyms) that represent the concept and predict the most probable concept for a CC based on the learned terms. Experiments on 1204 CCs extracted from 15 618 discharge summaries of Korean EMRs showed that the proposed method gave significantly improved <I>F</I>-measure values compared to the baseline system, with improvements of up to 73.57%.</P>

A Muti-Resolution Approach to Restaurant Named Entity Recognition in Korean Web

Kang, Bo-Yeong,Kim, Dae-Won Korean Institute of Intelligent Systems 2012 INTERNATIONAL JOURNAL of FUZZY LOGIC and INTELLIGE Vol.12 No.4

Named entity recognition (NER) technique can play a crucial role in extracting information from the web. While NER systems with relatively high performances have been developed based on careful manipulation of terms with a statistical model, term mismatches often degrade the performance of such systems because the strings of all the candidate entities are not known a priori. Despite the importance of lexical-level term mismatches for NER systems, however, most NER approaches developed to date utilize only the term string itself and simple term-level features, and do not exploit the semantic features of terms which can handle the variations of terms effectively. As a solution to this problem, here we propose to match the semantic concepts of term units in restaurant named entities (NEs), where these units are automatically generated from multiple resolutions of a semantic tree. As a test experiment, we applied our restaurant NER scheme to 49,153 nouns in Korean restaurant web pages. Our scheme achieved an average accuracy of 87.89% when applied to test data, which was considerably better than the 78.70% accuracy obtained using the baseline system.

Gene expression profiling of KBH-A42, a novel histone deacetylase inhibitor, in human leukemia and bladder cancer cell lines

KANG, MOO RIM,KANG, JONG SOON,YANG, JEONG WOOK,KIM, BO GEUN,KIM, JIN-AH,JO, YEONG NANG,LEE, KIHO,LEE, CHANG WOO,LEE, KI HOON,YUN, JIEUN,KIM, HWAN MOOK,HAN, GYOONHEE,KANG, JONG SEONG,PARK, SONG-KYU Spandidos Publications 2012 Oncology letters Vol.3 No.1