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구미국가산업단지 창업생태계에 대한 트리플헬릭스 네트워크
윤창배,박한우 한국산학기술학회 2024 한국산학기술학회논문지 Vol.25 No.3
The purpose of this study was to prepare an optimal start-up space in the Gumi National Industrial Complex (Gumi Industrial Complex) from a Triple-Helix perspective and to derive a support program. To this end, seven start-up keywords related to the Gumi Industrial Complex were selected. Big Keynes based on media big data was used to demonstrate interrelationships between start-up keywords and companies, universities, and governments, which are the subjects of regional innovation. The research results are summarized as follows. Analysis of the text semantic network showed that securing start-up facilities and spaces were significantly related to the public sector, including the government, and that receiving technology development and consulting was highly related to the smartization of SMEs. Analysis of correlations between the seven start-up keywords showed entrepreneurs were most interested in the network and start-up spaces. Correlation analysis between the seven start-up keywords and the three key subjects of the triple helix emphasized the role of the network for companies, the roles of facility and space provision for government, and the roles of start-up and consulting for universities. In summary, the study has the following implications. First, since it is not easy to secure a new start-up space in the Gumi Industrial Complex, which was established in 1969, industry, academia, and government must cooperate to remodel closed business factories or establish a start-up support center to supply small spaces. Second, a network between start-up companies and existing tenant companies is required to create opportunities for learning and imitation through contact and cooperation with various external actors.
윤창배,김기식 동국대학교 경주대학 1998 東國論集 Vol.17 No.1
Peritonsillar abscess is a one of the complication of infections of tonsils and usually occurs in patients with recurrent tonsillitis or in those with chronic tonsillitis who have been inadequately treated. We have recently carried out a retrospective study on the clinical evaluation of many factors related to peritonsillar abscess Fifty-one patients who visited Dongguk Medical Center from during 4 years from March 1994 to December 1997 were evaluated. Among 51 cases, 41 cases yields pus in incision and drainage or aspiration. In bacteriology, we found Streptococcus milleri, Streptococcus salivarius, which are known not to cause peritonsillar abscess can cause peritonsillar abscess. This study conclude that both antibiotic treatment and needle aspiration or incision-drainage are important in treating peritonsillar abscess.
아데노이드편도절제술에서 술전${\cdot}$술후 경구용 스테로이드의 효과
윤창배,김기식 대한기관식도과학회 1999 大韓氣管食道科學會誌 Vol.5 No.1
Postoperative pain, poor oral intake and various complaints of adenotonsillectomized patients are the main problems for the otolaryngologist. Steroids have been advocated to reduce morbidity after adenotonsillectomy, but the results are conflicting. This study is to determine the effect of preoperative and postoperative oral steroid. Material and Methods : A prospective, randomized study was performed on 40 patients from 4 to 13 years of age. 20 patients undergoing adenotonsillectomy received steroid(experimental group), others undergoing adenotonsillectomy did not receive steroid(control group). An oral prednisolone was administered preoperatively for 3 days and postoperatively 7 days. A dosage was determined by patient's weight. Postoperatively each patients was examined for weight loss as well as for subjective signs of pain, oral intake, activity, mouth odor and analgesic usage. Results: experimental group showed decreased morbidity in view of postoperative pain, oral intake with statistical significance (p<0.05). The usage of analgesics was decreased in steroid group. but, activity, mouth odor and body weight showed no statistical difference. Conclusion: The results showed that preoperative and postoperative oral steroid affect the postoperative morbidity in adenotonsillectomy.
무인기 운용환경을 고려한 보조링크 프레임 구조설계에 따른 성능분석
윤창배(Chang Bae Yoon,)김회준(Hoi Jun Kim),홍수운(Su Woon Hong) 한국전자통신학회 2017 한국전자통신학회 논문지 Vol.12 No.6
In this paper, we apply the LMMSE(: Linear Minimum Mean Square Error) algorithm to overcome the Doppler effect according to the UAV(: Unmanned Aerial Vehicle) velocity in multipath fading channel environment. Simulation results show that the performance difference depends on the pilot arrangement and pattern, and we confirmed that the frame structure proposed in this paper can provide a stable secondary link for high speed UAV system. 본 논문에서는 다중경로 페이딩의 무인기 채널환경에서 무인기 속도에 따른 도플러 영향을 극복하기 위해 LMMSE(: Linear Minimum Mean Square Error) 알고리즘을 적용하였고, 파일럿 배치 및 패턴에 따른 영향성을 분석하였다. 모의 실험결과 파일럿 배치 및 패턴에 따라 성능 차이를 확인할 수 있었고, 본 논문에서 제시한 프레임 구조를 통해 실제 운용 환경에서도 고속의 무인기에 대해 안정적인 보조링크를 제공할 수 있음을 확인하였다.