[영주시 공공건축가 및 디자인관리단] 영주시 공공건축가제도를 통한 기획사례

윤승현 새건축사협의회 2014 건축과사회 Vol.26 No.-

생산관리 1 : 생산 용량을 고려한 사건 기반(Event-driven) MRP의 컴포넌트 개발에 관한 연구

윤승현,장양자,박진우 대한산업공학회 1999 대한산업공학회 춘계학술대회논문집 Vol.1999 No.-

The Characteristics of Sleep in Headache Patients

윤승현,최영찬,권정승,안형준 대한안면통증∙구강내과학회 2015 Journal of Oral Medicine and Pain Vol.40 No.2

Purpose: To investigate the relationship between headache and sleep by evaluating sleep quality,daytime sleepiness, and specific features related to sleep-disordered breathing (SDB). Methods: One hundred one subjects with headache and 118 healthy controls were enrolled. Tocollect various information on headache attacks, headache group completed self-reported questionnaireabout the characteristics of headache attacks and the migraine disability assessment(MIDAS) questionnaire. The subjective quality of sleep was evaluated in all of the subjects usingthe Pittsburgh sleep quality index (PSQI) and Epworth sleepiness scale (ESS). In addition,the following specific features of sleep were evaluated in 28 subjects selected randomly fromeach group: apnea-hypopnea index (AHI), prevalence of SDB, nocturnal oxygen saturation(SaO2), and oxygen desaturation index (ODI) as measured using a portable monitoring device. Results: The global PSQI and the prevalence of poor sleeping (global PSQI >5), ESS scores andthe prevalence of daytime sleepiness (ESS score >10) were significantly higher in the headachegroup (both p<0.0001, respectively). The mean scores on the numerical rating scale andthe MIDAS were significantly higher in the poor-sleeper group than in the good-sleeper group(p=0.0347 and p=0.0016, respectively). The global PQSI and prevalence of daytime sleepinesswere significantly higher in the chronic-headache group than in the acute-headache group(p=0.0003 and p=0.0312, respectively). Conclusions: There is a significant association between headache and sleep. Especially, severity andchronicity of headache were significantly associated with sleep quality and daytime sleepiness.

Repetitive ultrasonographic assessment of adrenal size and shape changes: a clue for an asymptomatic sex hormone-secreting adenoma

윤승현,오희진,이주환,손규열,조경오,최지혜 대한수의학회 2017 Journal of Veterinary Science Vol.18 No.1

Diagnosis of an adrenal tumor without typical clinical signs related to hyperadrenocorticism and elevated alkaline phosphatase is challenging. This report describes a sex hormone-secreting adrenal tumor in a 10-year-old castrated male Shih Tzu evaluated through repetitive ultrasonographic examination. An adrenocorticotropic hormone stimulation test revealed elevated concentrations of androstenedione and 17-hydroxyprogesterone but a normal cortisol concentration. A mass was surgically excised and adenoma was diagnosed histopathologically. In the present case, adrenal tumor was strongly suspected based on a gradual increase in adrenal size and a change from peanut shape to an irregular mass on repetitive ultrasonography. Repetitive ultrasonographic examination of the adrenal gland is recommended when an abnormal ultrasonographic appearance of adrenal gland is identified, even in an asymptomatic dog.

NS-3와 이산 사건 시뮬레이터를 이용한 유연한 DDoS 시뮬레이션에 관한 연구

윤승현,최창범 한국경영과학회 2015 한국경영과학회 학술대회논문집 Vol.2015 No.4

In recent days, the DDoS (Distributed Denial of Service) attack is one of the popular electronic attack method involving multiple computers in order to achieve malicious objectives. In DDoS attack method, distributed computers send repeated HTTP requests or pings to server, so that the server cannot respond to normal requests. In order to predict the DDoS attack or handle the attack, the modeling DDoS attack, and the simulation of the attack is important. In this study, we model the behavior of the slow HTTP Read DoS attack, which is one of the DDoS attack method, by utilizing various simulators. Especially, we use ns-3 network simulator to organize the network topology and discrete event simulator to model the malicious bot and services protocol.

초음파를 이용한 견봉하 점액낭 내 스테로이드 주사 효과: 두 가지 용량의 비교

윤승현,곽규성,나은우,조계희 대한재활의학회 2009 Annals of Rehabilitation Medicine Vol.33 No.4

Objective: To investigate the treatment efficacy between low and high dose of triamcinolone acetonide in the treatment of ultrasonographic-guided subacromial bursa injection. Method: Forty two patients with periarticular shoulder disorders were randomly assigned to receive injection with 10 mg (group 1, 20 patients) or 40 mg (group 2, 22 patients) triamcinolone acetonide. After a single injection, participants were followed up for 6 weeks. Treatment efficacy was measured upon pre-treatment and post-treatment on week 1, 3, 6, using visual analog scale for average pain intensity during 24 hours (24 h VAS), Shoulder Function Assessment scale (SFA), Shoulder Disability Questionnaire (SDQ), and active range of motion (AROM). Participants and the assessor were blinded for group assignment. Results: Six weeks after injection, the 24 h VAS, the SFA, the SDQ, and the AROM (internal rotation, external rotation, and abduction) showed a significantly greater improvement in group 2 than group 1 (p<0.05). Conclusion: This study showed that in the treatment of periarticular shoulder disorders greater pain relief and functional improvement were obtained with a dose of 40 mg triamcinolone acetonide than with a dose of 10 mg.

BIM 기반 재난 대비 임시주거시설 설계 시스템 개발에 관한 연구

윤승현,최진원,조수연,Yoon, Seung-Hyun,Choi, Jin-Won,Cho, Su-Yeon 한국주거학회 2013 한국주거학회 논문집 Vol.24 No.1

Recently, due to the casualties and property damage caused by disasters, it became important to evacuate the victims to a safe place and come up with a space for them to inhabit for a certain period of time. Therefore, this study aims to design and develop a temporary housing system that would quickly provide a safe and comfortable living space until the displaced persons can return to a normal life again when a disaster occurs. As a result, a system of a BIM-based modular housing, a modular town through automatic placement, and a method to calculate the capacity and the total cost was developed. As this system provides the temporary housing facilities and the site in 3D, it can be utilized as a training material on a normal basis, as well as the first case material for rapid decision making when there is a disaster.

중국의 이동통신 현황과 정책 그리고 규제 동향

윤승현 한중사회과학학회 2003 한중사회과학연구 Vol.2 No.-

한중일 주요 전시컨벤션센터의 포지셔닝 분석을 통한 경쟁력제고 방안 모색

윤승현,고재윤 한국호텔관광학회 2008 호텔관광연구 Vol.10 No.2

The objective of this study is to analyze the positioning of five representative exhibition and convention centers in Northeast Asia in order to contribute to the enhancement of their competitiveness. The analytical result of the study can be summarized as follows. First, based on the competitive structure of exhibition and convention centers in Northeast Asia, exhibition and convention experts perceive COEX in Seoul and HKCEC in Hong Kong as being most similar, which implies that the two centers are in a competitive relationship.Second, the competitiveness analysis of facilities, efficiency of operations and marketing activities indicates CIEC in Beijing as being most competitive. Third, the competitiveness analysis of customer service reveals SNIEC in Shanghai as being most competitive. Fourth, based on the competitiveness analysis of the accessibility of exhibition and convention centers, COEX was most competitive followed by HKCEC. Fifth, in the competitiveness analysis of preference for exhibition and convention centers, HKCEC was ranked as the preferred exhibition and convention center in Northeast Asia followed by COEX, while CIEC, SNIEC and Tokyo Big Sight were shown to be similarly preferred.

컨벤션센터의 평가속성 도출과 한중일 컨벤션전문가들의 중요도 인식에 관한 연구

윤승현 한국호텔관광학회 2009 호텔관광연구 Vol.11 No.1

The objective of this study is to derive the estimation attributes of convention centers and to compare the perceptions regarding the importance of people in the convention industry among Korea, China and Japan. The estimation attributes were derived from previous research, interviews and questionnaires submitted by people who work within the convention industry. The analytical results of the study can be summarized as follows. The perception of the importance of the estimation attributes according to nationality was analyzed to have a difference in the ‘customer service’ level, ‘convention facilities' level, and ‘effective management’ level. It means that the convention industry in Japan is relatively more developed over than Korea and China, so people in the convention industry in Japan has a more developed perception of customer service, convention facilities, and effective management. The perception of the importance of the estimation attributes according to the job sector was analysed to have a difference in the ‘effective management’ level. It means that people who work in the same work sector have a same culture background and have a same perception. The perception of the importance of the estimation attributes according to education level was analysed to have a difference in the ‘convention facilities’, and ‘effective management’ level. It means that people who have the same education level have a same perception.