크론병에 병발한 대장암종 1예

심영보,신미경,임재현,신동우,신재욱,한병철,천정현,한연석,서상렬 대한내과학회 2000 대한내과학회지 Vol.59 No.1

Crohn's disease is one of the chronic inflammatory disorders of unknown cause involving the gastrointestinal tract. The inflammation may occur in the colon, either alone or with small intestine. Crohn's disease has been associated with increased risk for coloretal carcinoma in patients with long-standing colitis, strictures and fistulae. Recently, we experienced a case of Crohn's disease complicating carcinoma in a 85 year old male. Ten years ago, he compained severe abdominal pain and diarrhea. and was detected colon obstruction and enteric fistula. But, he spontaneously improved. Recently, the patient was admitted complaining abdominal pain. He complaind abdominal pain and indigestion chronically and aggravated recently. He was examined with colonofibroscopy, and computered tomography, and carcinoma was detected at the site of Crohn's disease. (Korean J Med 59:80-84, 2000)

알레르기성 혈관염을 동반한 장간막정맥혈전증 1예

심영보,임재현,한연석,이우진,이준성,백현욱,전영빈,이정환,김유선,우광훈,문정섭 인제대학교 백병원 2001 仁濟醫學 Vol.22 No.2

Mesenteric venous thrombosis is an rare type of intestinal ischemia associated with significant mortality and morbidity because of its delay in diagnosis. Mesenteric vasculitis associated with allergic vasculitis can also produce an acute intestinal ischemia. We recently experienced a case of mesenteric venous thrombosis associated with allergic vasculitis, successfully treated with segmental bowel resection and anticoagulant therapy, we report this case with a brief review of the literatures. A 30-year-old man was admitted to our hospital because of severe abdominal pain and hematochezia. Abdominal CT scan showed superior mesenteric venous thrombosis extending into main portal vein. There were large amounts of ascites and the wall of the jejunum was markedly thickened. On the 5th hospital day, his abdomen was tense and diffusely tender: bowel sounds were absent. Exploratory laparotomy was performed under the impression of intestinal infarction. At laparotomy thrombosis of the mesenteric vein and gangrene of the jejunum were found. A small bowel resection with an end-to-end anastomosis was done. Histopathological examination confirmed venous bowel gangrene and showed leukocytoclastic vasculitis, the hallmark of allergic vasculitis. The patient recovered fully and was discharged on anticoagulant therapy. At follow-up after 6 months, the patient was well with no gastrointestinal symptoms.

초등교사의 교수관심에 관한 연구 : 교원평가 시범운영 학교와 비 시범운영 학교 교사의 비교

심영보 부산대학교 교육발전연구소 2007 敎育硏究 Vol.17 No.1

교육의 질적 수준을 가늠하는 데는 교사의 자질과 능력이 중요한 요인 중 하나이다. 교사의 자질과 능력은 직전교육과 현직교육을 포함한 교사교육에 의해 좌우된다. 최근 우리나라에서는 교사교육의 내실화를 위해 교사 임용제도를 개선하려는 노력을 하고 있으며 다른 한편으로 교원 평가제도를 ‘능력개발형’으로 전환하려는 노력을 하고 있다. ‘능력개발형’ 교원 평가제도는 기존 근무성적평정제가 인사관리를 위한 단순한 기능만을 수행할 뿐 교사의 전문적 성장과 질 향상에 도움이 되지 않는다는 비판을 받고 있다(김이경, 김갑성, 김도기, 김순남, 2006: 150). 또한 교사는 교직생활 전 기간을 통해 다양한 영역에서 변화․발전하기 때문에 평가제도를 단순히 능력개발형으로 바꾸는 것으로 그 효율성을 확보하기 어렵다. 따라서 교사의 자질과 능력을 높이기 위해 발달적 관점을 적용해야 한다는 주장이 제기되고 있다(김병찬, 2007; 백승관, 2003; 이난숙, 1992; 이병진, 1996).

The effect of cleaning methods on bond strength of zirconia after saliva contamination

심영보,최안나,손성애,정경화,권용훈,박정길 대한치과재료학회 2017 대한치과재료학회지 Vol.44 No.1

This study evaluated the effects of various cleaning methods on the shear bond strength of zirconia ceramics after saliva contamination. Eighty zirconia disk specimens were divided into 8 groups. All groups were treated with one coat of MDP primer. All specimens (except the negative control) were contaminated with human saliva on the zirconia surface. The positive control went through the bonding procedure immediately after contamination without any cleaning procedure. With the exception of control groups, the remaining six groups were rinsed with water and either applied with MDP recoating (WATER+MDP) or without MDP recoating (WATER). While some were cleaned with a Ivoclean with MDP recoating (IVOCLEAN+MDP) or not applied with MDP recoating(IVOCLEAN), others were cleaned with a 1% NaOCl solution with MDP recoating (NaOCl+MDP) or without MDP recoating (NaOCl). The shear bond strength of all specimens were measured after being stored in distilled water at 37°C for 24 hours. The data was analyzed statistically by an analysis of ANOVA, Tukey’s post hoc test and Student’s t-test was used to compare the shear bond strength according to the re-coating of MDP after the cleaning procedure. The positive control group showed the lowest shear bond strength value, and the WATER group and NaOCl group showed no significant difference when compared to the positive control group. The IVOCLEAN group showed significantly higher shear bond strength when compared to Water group and NaOCl group but not with the group of negative control. After rinsing with water or the NaOCl solution, the comparison of the single coating of MDP and re-coating of MDP showed different shear bond strengths but there was no significant difference to the negative control. After rinsing with Ivoclean, there was no significant difference to the negative control regardless of the recoating of MDP. In conclusion, the shear bond strength was affected by the cleansing procedure and Ivoclean was found to be effective regardless of the re-coating of MDP. When water or the NaOCl solution is used to remove surface contaminants, the re-coating of MDP provides a positive effect on cementation.

확장 가이드 서클 방법을 이용한 비홀로노믹 이동로봇의 실시간 장애물 회피

심영보,김곤우 한국로봇학회 2017 로봇학회 논문지 Vol.12 No.1

The Expanded Guide Circle (EGC) method has been originally proposed as the guidance navigation method for improving the efficiency of the remote operation using the sensory information. The previous algorithm is, however, concerned only for the omni-directional mobile robot, so it needs to suggest a suitable one for a mobile robot with non-holonomic constraints. The ego-kinematic transform is a method to map points of R2 into the ego-kinematic space which implicitly represents non-holonomic constraints for admissible paths. Thus, robots with non-holonomic constraints in the ego-kinematic space can be considered as “free-flying object”. In this paper, we propose an effective obstacle avoidance method for mobile robots with non-holonomic constraints by applying EGC method in the ego-kinematic space using the ego-kinematic transformation. This proposed method shows that it works better for non-holonomic mobile robots such as differential-drive robot than the original one. The simulation results show its effectiveness of performance.

Decision Tree를 이용한 GT Based CAPP 시스템 개발 ( The Development of GT Based CAPP System Using Decision Tree )

심영보,노상도,이홍희,이교일 대한기계학회 1995 대한기계학회 춘추학술대회 Vol.- No.-

Vehicle-In-the-Loop 기반의 자율주행 기능 검증 방법에 관한 연구

심영보,박진만,성기호,이선영 한국ITS학회 2022 한국ITS학회 학술대회 Vol.2022 No.11

Methyl Methacrylate(Radiopaque Bone Cement)를 이용한 두개골 성형술의 임상적 연구

심영보,황형식,이종인,오세문,최선길,강성구 대한신경외과학회 1990 Journal of Korean neurosurgical society Vol.19 No.3

Cranioplasty has long been performed by many physicians with different materials from the prehistoric era. Among the materials, methyl methacrylate has been known to be the superior to any other substitutes since 1940s in biologic, chemical and physical characteristics and its availability. So the authors review 72 patients who underwent cranioplasty with methly methacrylate at out hospital from 1985 to 1989. The clinical analysis were as flollows : 1) There was male prefonderence and epidural hematomas, compound comminuted depressed fractures by traffic accidents or fall down injuries were the main cause of craniectomy. 2) The location of defects was mainly frontal and/or parietal area and average size of defects was 17㎠ in plain skull film measurements. 3) The cosmetic results were satisfactory. 4) Complication rate was 6% and there was no mortality.

Switchable Multiwavelength Filter Based on a Hybrid Sagnac Interferometer

심영보,한영근 한국물리학회 2012 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.60 No.8

A switchable multichannel filter based on a hybrid Sagnac interferometer was proposed and experimentally demonstrated. The hybrid Sagnac interferometer was realized by inserting a sampled fiber Bragg grating (SFBG) into a fiber loop mirror by using a polarization-insensitive 3-dB coupler. By using a beam scanning technique, we fabricated a sampled fiber Bragg grating by exposing a photosensitive fiber to a frequency-doubled 244-nm Ar+ laser. The fabricated SFBG had multiple reflection peaks corresponding to the chirp ratio and the spacing of grating. The multiple peaks in the hybrid Sagnac interferometer could be controlled by changing the relative phase difference between two counter-propagating signals. The transmission characteristics of the proposed switchable multichannel filter were analyzed by using a Jones matrix method. Consequently, a switchable multichannel filter based on a sampled fiber Bragg grating incorporating a Sagnac interferometer could be achieved.

醫藥品 任意調劑의 違法性

沈英輔 대한의학협회 1989 대한의학협회지 Vol.32 No.8