http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Yeong Joon Kim(Yeong Joon Kim),Chang Hoi Kim(Chang Hoi Kim),Jooyeon Kim(Jooyeon Kim),Gilsoon Choi(Gilsoon Choi),Yeong Wook Jeong(Yeong Wook Jeong),Jaehwan Kwon(Jaehwan Kwon) 대한미용의학회 2022 대한미용의학회지 Vol.6 No.2
Background: Data on structural modifications caused by septal deviation may help otolaryngologists make informed decisions on the inclusion of turbinate surgery with septoplasty as well as identify the part of the inferior turbinate that requires more attention during surgery. Objective: This study aimed to compare the dimensions of the ipsilateral and contralateral sides of the inferior turbinate and the septal deviation in a Korean population. Methods: We retrospectively analyzed the facial computed tomography (CT) scans of 111 patients who underwent septoplasty between January 2012 and December 2017 for the anterior, posterior, and maximally deviated sites of the inferior turbinate. Results: Statistical analyses revealed differences in the medial mucosa and the total thickness of the anterior and maximally deviated sites between the ipsilateral and contralateral sides. The medial mucosal portion of the anterior site was 4.64±2.12 mm on the contralateral side and 4.14±1.75 mm on the ipsilateral side (p=0.03). The total thickness of the anterior site was 9.72±4.25 mm on the contralateral side and 8.58±3.36 mm on the ipsilateral side (p=0.02). The medial mucosal portion of the maximally deviated site was 5.09±2.52 mm on the contralateral side and 4.39±2.05 mm on the ipsilateral side (p=0.04). The total thickness of the maximally deviated site was 9.58±4.06 mm on the contralateral side and 8.81±3.50 mm on the ipsilateral side (p=0.04). No significant differences were found in the measurements between the two sides of the posterior site or in the bone thickness at any of the sites. The inferior turbinate did not show any significant relationship with the deviation angle. Conclusion: A conservative submucosal turbinoplasty without bone removal may be favorable. Level of Evidence: Level IV
Hydrophobic coating effect on the mechanical and
Heung-Soo Kim, Jung-Hwan Kim, Jaehwan Kim and Joo-Hyung Kim 조선대학교 IT연구소 2011 정보기술융합공학논문지 Vol.1 No.1
Hyrdophobic treatment effect on the actuation performance of cellulose electroactive paper (EAPap) was investigated. The hydrophobic 300 nm thick tetraethoxylsilane (TEOS) layer was deposited by plasma method. It was found that the growth mechanism of hydrophobic TEOS is an island-like behavior on cellulose EAPap, which is similar to lotus shape, resulting in the blocking water adsorption into cellulose layer and keeping the water drop on cellulose for a couple of hours. For actuating performance of TEOS treated EAPap, the actuation of cellulose seems to be independent to the change of humidity condition. Young's modulus of the hydrophobic treated EAPap was negligibly changed in different humidity conditions, while that of pure EAPap was
Kim Jaehwan,Kim Chai Yoon,Kim Jeong Gyun,Kim Hakyung,Sheen Seung Hun,Han In-bo,Sohn Seil 대한말초신경학회 2023 The Nerve Vol.9 No.1
Objective: This nationally matched longitudinal study aimed to investigate the relationship between acute myocardial infarction (AMI) and ossification of the posterior longitudinal ligament (OPLL) in Korea.Methods: We collected patient data from January 1, 2004 to December 31, 2015 from the National Health Insurance Service Health Screening Cohort. Patients with OPLL were defined as patients with the International Classification of Diseases, Tenth Revision code M48.8 (other specified spondylopathies) and were newly diagnosed through computed tomography imaging. The OPLL group had a total of 1,289 patients. The control group included 6,445 people. Utilizing the Kaplan-Meier technique, The incidence of AMI in both groups was estimated. A Cox proportional-hazards regression analysis was used to compute the AMI hazard ratio.Results: After controlling for age and sex, the hazard ratio of AMI in the OPLL group was 2.065 (95% confidence interval [CI], 1.228-3.474). The adjusted hazard ratio in the OPLL group was 2.209 after restricting the sample for demographics and concomitant medical conditions (95% CI, 1.311-3.721). In a subgroup analysis, the incidence of AMI was substantially greater in the OPLL group, which included women younger than 65 years and without hypertension, diabetes, or dyslipidemia.Conclusion: This nationwide longitudinal study found that patients with OPLL were at higher risk of AMI.
기능성 위장장애 환자의 소화불량 제증상 치료에 있어서 콤비짐^(�)정의 임상효과
김동의,주재환,추상우,김형륵,조철균,김영진,김현종,김신곤 中央醫學社 1996 中央醫學 Vol.61 No.12
Functional dyspepsia has been considered, until recently, to be a nebulous syndrome, in part because of the lack of a structural explanation for the symptoms and because of the apparent heterogeneity of the patients labeled with this diagnosis. Although many definitions have been offered, there is now reasonable consensus that dyspepsia refers to persistent or recurrent pain or discomfort that is centered on the upper abdomen ; the discomfort may be characterized by postprandial fullness, early satiety, nausea or upper abdominal bloating. The diagnosis of dyspepsia must not be restricted to those with meal-related symptoms because there is no clinical condition, including chronic peptic ulceration, in which the symptoms are exclusively confined to the postprandial period. The majority of the patients with chronic or recurrent dyspepsia do not have a peptic ulcer or any other recognized structural or biochemical abnormality that definitely explains the symptoms ; these patients are classified as having functional dyspepsia. Ideally, therapy for functional dyspepsia should be targeted at correcting an individual's underlying pathophysiologic disturbances. However, the mechanisms that produce symptoms in patients with functional dyspepsia remain poorly understood. A polyvalent digestive product Combizym� has a powerful combination of enzymes with broad activity and broad pH spectrum. It acts from the stomach to the small intestine and has a complete digestive effect on protein, carbohyrate and fat. We treated Combizym� in patients with functional dyspepsia with open, noncomparative study. The results are as follows ; 1. The improvement of the symptoms were 96.4 % in nausea and vomiting, 92.6 % in bloating, other symptoms were also improved over 75 %. 2. There was only mild pruritus in a patient and others were well tolerated during the experiment. 3. Overall improvement rate was 86.7 % of 30 patients. In conclusion, Combizym� is a safe and effective digestive drug in patients with functional dyspepsia.
특징 분리를 통한 자연 배경을 지닌 글자 기반 CAPTCHA 공격
김재환(Jaehwan Kim),김수아(Suah Kim),김형중(Hyoung Joong Kim) 한국정보보호학회 2015 정보보호학회논문지 Vol.25 No.5
컴퓨터 사용자가 사람인지 아닌지를 판별하는 CAPTCHA는 많은 포털 사이트에서 자동 프로그램에 의한 비정상적인 회원가입 또는 다중 로그인 방지 등을 위해 사용되고 있다. 많은 웹 사이트들은 숫자 혹은 영어로 구성된 문자열 기반 캡챠를 대부분 사용하는데, 최근에는 OCR 기술의 발달로 단순한 텍스트 기반 캡챠는 쉽게 무력화 된다. 이에 대한 대안으로 많은 웹 사이트들은 글자 판독을 어렵게 하기 위해 잡음을 첨가하거나 글자를 왜곡시키는 등 다양한 시도를 하고 있다. 본 논문에서 대상으로 하는 국내 한 포털 사이트 역시 공격자들에 의해 많은 공격을 당하였고, 끊임없이 캡챠를 발전시키고 있다. 본 논문에서는 해당 사이트에서 현재 사용되고 있는 다양한 자연 배경을 지닌 캡챠에 대해 분석하고, SVM을 이용한 특징 분리 후 CNN을 이용한 글자 인식을 통해 해당 캡챠의 취약성을 검증하였다. 실험 결과, 총 1000개의 캡챠 이미지 중 368개에 대해 정확히 맞추었고, 이를 통해 해당 포털 사이트에서 현재 사용하고 있는 새로운 버전의 캡챠 역시 안전하지 않음을 입증하였다. CAPTCHA(Completely Automated Public Turing test to tell Computers and Humans Apart) is a test used in computing to distinguish whether or not the user is computer or human. Many web sites mostly use the character-based CAPTCHA consisting of digits and characters. Recently, with the development of OCR technology, simple character-based CAPTCHA are broken quite easily. As an alternative, many web sites add noise to make it harder for recognition. In this paper, we analyzed the most recent CAPTCHA, which incorporates the addition of the natural images to obfuscate the characters. We proposed an efficient method using support vector machine to separate the characters from the background image and use convolutional neural network to recognize each characters. As a result, 368 out of 1000 CAPTCHAs were correctly identified, it was demonstrated that the current CAPTCHA is not safe.
콘크리트 구조물 보강용 광섬유 센서 내장형 탄소섬유시트의 센싱 성능 평가
김재환 ( Kim Jaehwan ),박기태 ( Park Ki-tae ),김병철 ( Kim Byeong-cheol ),정규산 ( Jung Kyu-san ),김건수 ( Kim Kun-soo ) 한국구조물진단유지관리공학회 2020 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.24 No.1
철근 콘크리트 구조물의 보강에 대한 관심이 높아지고 있지만, 보강 이후의 구조물의 성능 평가 방법에 대해서는 연구가 미비한 실정이다. 보강된 철근 콘크리트의 성능 평가를 위해서 본 연구에서는 광섬유센서를 매립한 탄소섬유시트를 제작하여 철근 콘크리트의 구조성능을 평가하였다. 탄소섬유시트 부착에 따른 구조물의 보강 효과를 확인 할 수 있었고, 하중 재하시 광섬유센서를 이용하여 변형률을 계측하였고, 이미지 맵핑을 통하여 보강 부위에서의 집중 하중이 발생하는 부분을 확인 할 수 있었다.