편도 절제술 후 출혈에 관한 임상적 분석

오재규,박선주,유태현 고신대학교의과대학 2008 고신대학교 의과대학 학술지 Vol.23 No.3

Background and Objectives : Hemorrhage is one of the most common complication after tonsillectomy. Despite of many various efforts, it still remains unsolved problem to many otolaryngologist. Because so many factors are related to postoperative bleeding after tonsillectomy, so we tried to see the postoperative hemorrhage rate in relation to various parameters. Material and Methods : A retrospective study on patients who had underwent tonsillectomy in Wallace Memorial Baptist Hospital for 6 years from January 2002 to December 2007. Parameters such as sex, seasons of year, age distribution, tonsil size, previous tonsillitis history and anesthesia type were considered. Results : Overall hemorrhage rate was 2.6%. Postoperative hemorrhage was common in adult males with incidence of 4.5% and most of them was secondary hemorrhage. In age distribution, the incidence was high in the group of 16~30 year. Bleeding was common in autumn, grade II tonsil and increased when the history of tonsillitis was frequent, and local tonsillectomy was better in terms of bleeding compared with tonsillectomy under general anesthesia. but there was no statistical significance. Conclusion : To reduce the incidence of postoperative hemorrhage, perioperative education and complete bleeding control during operation is important for high risk patients.

소아의 후두개에 발생한 과립 세포종 1예

오재규,박선주,유태현 고신대학교의과대학 2008 고신대학교 의과대학 학술지 Vol.23 No.3

Granular cell tumors are relatively uncommon benign laryngeal lesions, especially in children. The granular cell tumor can occurs everywhere in our body. Half of all granular cell tumors occur in the head and neck, with a third of these occuring in the tongue. The larynx is relatively uncommon location, accounting for approximately 7% to 10% of all reported cases. Typically, the most common presenting symptom is hoarseness, with some patients also presenting stridor, hemoptysis, dysphagia. But the tumor may be asymptomatic and be discovered only incidentally during a routine examination. Confirmative diagnosis should be made histopathologically and supported by immunohistochemical staining using S-100. Treatment of a granular cell tumor is complete excision with an attempt to maintain normal structures. We experienced a 14-year-old woman with laryngeal granular cell tumor, which involves the epiglottic lower margin. She was successfully treated with complete excision under laryngomicroscopic dissection. So we report it with a review of literatures.

GPS 항법을 위한 미지정수 추정 및 반송파 위상을 이용한 위치 결정기법

최규일,심덕선 중앙대학교 정보통신연구소 2000 정보통신연구소논문집 Vol.2 No.2

동체의 항법을 수행하기 위한 정확한 위치를 계산하기 위해 우리는 일반적으로 반송파 위상(carrier phase)을 사용한다. 하지만 하나의 수신기로부터 얻은 반송파 위상 측정치는많은 오차에 의해 영향을 받는다. 그러므로 일반적으로 차분된 반송파 위상 측정기를 사용하게 된다. 하지만 차분 방법으로도 초기 미지정수는 제거되지 않으므로 미지정수 결정을위한 방법이 필요하다. 본 논문에서는 칼만 필터(Kalman filter)와 LSAST(Least Squares Ambiguity Search Technique)와 ARCE(Ambiguity Resolution with Constraint Equation)와 같은 검색 기법을결합한 미지정수 추정기법과 이를 이용한 위치 결정기법에 대해 설명하였다. 제안된 알고리즘을 검증하기 위해 정적, 동적 시뮬레이션을 수행하였다. In order to calculate the precise position of vehicles for navigation, we usually use carrier phase measurements. Carrier phase measured form only one GPS receiver is affected by various errors. Therefore, we usually use double-difference carrier phase measurements. But integer ambiguity is not eliminated, therefor we need integer ambiguity determination method. In this paper, we formulate ambiguity algorithm using Kalman filter and several search methods such as LSAST(Least Squares Ambiguity Search Technique) and ARCE(Ambiguity Resolution with Constraint Equation). To analyze the proposed algorithm, static and kinematic simulations were performed.

5A Molecular Sieve에 대한 물성측정 및 흡착특성의 연구

白殷圭,徐成燮,姜成沅 弘益大學校 科學技術硏究所 1998 科學技術硏究論文集 Vol.9 No.2

Pressure swing adsorption(PSA) is not a new process and, like most good inventions, with the advantage of hindsight the principle appears obvious. As in all adsorption separation processes, the essential requirement is an adsorbent that preferentially adsorbs one component(or one family of related components) from a mixed feed. This selectivity may depend on a difference in adsorption equilibrium or on a difference in sorption rates (kinetic selectivity). In certain cases the difference in rates may be so great that the slower-diffusing species is in effect totally excluded from the adsorbent(size-selective sieving), and in this situation a very efficient separation can obviously be achieved. The adsorption properties need adsorption characteristics of nitrogen, oxygen and mixture on 5A molecular sieve so that a commercial pursuits use on PSA. This study is that adsorbed amounts from the pure nitrogen, oxygen and mixture on 5A mole cular sieve were measured by static adsorption experimental results for the components were fitted and two parameter of Langmuir isotherm, K and b, were determined at various temperatures. K which represents Henry constant had good correlation with temperature. From this correlation isosteric heat of adsorption was determined. On the other hand, at the studied low pressure, far from saturation, the curvature of the isotherms was weak. The b values of oxygen were small. The effect of temperature on b was expressed as an Arrhenius from. It was shown that adsorbed amount of nitrogen was much large than that of oxygen since polarization of nitrogen is larger than that of oxygen for ionic adsorbent like zeolite. Sorption of the pure nitrogen, oxygen on 5A molecular sieve is physical monolayer adsorption and is well applied to the kinetic model, Langmuir isotherm.

시멘트 및 고성능AE감수제가 고유동콘크리트의 유동특성에 미치는 효과에 관한 실험적 연구

박선규,반성수,우영제,김규용,김무한 忠南大學校 産業技術硏究所 1998 산업기술연구논문집 Vol.13 No.1

The fluidity of high flowing concrete can be affected by numerous parameters which characterize either the cement or the admixture. The reactivity of a cement as determined by its chemical compositions (especially its C₃A content), its fineness and its content in sulfates and alkalies obviously plays a key role in rheology of high flowing concrete in fresh state. Specific properties of high range water reducing AE agent used to enhance the workability of high flowing concrete also exert important influence. The purpose of this experimental study is to investigate and analyze the effect of cement and high range water reducing AE agent in fluidity, setting, compressive strength of high flowing concrete. As a result, we found that fluidity of high flowing concrete is affected greatly by kind of cement and high range water reducing AE agent, also, there is harmonic character between high belite cement and polycarbonic acid high range water reducing AE agent.

어떻게 쓸 것인가 2

양선규 대구교육대학교 초등교육연구소 2020 현장중심 초등교육연구 Vol.2 No.-

Writing at a high professional level requires humanity that create implications and emotional resonance. This study deals with the problem of three pairs of important themes: rescue and trauma, the methods what metaphor and symbol make golden language remaining human reality. By tracing their developmental processes in writing, it examines the necessary and sufficient conditions to write texts with emotional resonance 글쓰기가 최상의 전문적인 수준을 획득하려면 맥락을 감동의 차원에서 활용할 수 있는 속 깊은 역지사지적 인문학 소양을 필요로 한다. 본 논문에서는 글의 감동을 최대한으로 확장하는 몇 가지 언어 표현의 문제에 주목하고 그 전개 과정을 세부적으로 추적한다. 역지사지를 토대 로 나의 상처가 타인의 구원이 되는 경지, 다양한 현실들이 만들어내는 진실의 추구 과정, 비 유가 언어의 차원을 넘어 실존의 조건이 되는 과정 등으로 나누어 감동적인 글쓰기의 세부 조 건들을 검색해 본다.

중국 조세제도의 문제점과 개선방안

강경규,김선화 明知大學校 經濟硏究所 2003 경영연구 Vol.22 No.1

세계경제는 날로 국제교역의 증대로 각국간에 경제의 상극의존도가 첨차 심화되고 있다. EU는 일찍이 경제통합을 목표로 회원국간에 사람, 돈 및 재화의 자유로운 이동을 가능케 하기 위한 전제로서 세제의 조화를 요구하고있다. 중국의 세제는 1994년에 현행 세제모습을 갖춘 것으로서 경제의 글로벌화, WTO의 가입등 새로운 경제환경이 빠르게 대두되는 오늘날 더는 시장경제 발전의 수요를 만족시킬 수 없게 되었으며 갈수록 그 문제점들이 두드러지고있다. 세제구조의 불합리, 세부담의 불공평, 징수관리 및 법규의 미비 등등. 중국은 마땅히 개발도상국과 선진국의 경험교훈을 참고로, 중국의 실정에 비추어 세제개혁을 진행함으로써 시장경제체계에 더욱 잘 부합되는 조세제도 및 조세행정상의 변화를 가져와야 한다. 이를 위해서는 상기 문제점들에 조준하여 비용을 세금으로 전환하는 방법으로 거시적 조세부담구조를 조정하고, 새로운 조세항목의 개설과 소득세 수준에 대한조정을 통하여 세제구조의 최적화를 실현하여야 하며; 내 · 외 자기업소득세를 통일하고 포괄적 개인소득세모식을 도입하는 방법으로 공평과세를 실현하며; 관세를 점차 인하하고, 기존의 생산형 증치세를 소비형 증치세로 전환하며; 조세징수관리제도에 대한 개혁을 통하여 조세징수관리의 숫자화 · 전자화 · 정보화 · 현대화를 실현하며;조세법규를 진일보 완벽해지게 하여야 한다.

스넥코너에서 채취한 튀김기름의 신선도에 관하여

박규영,박모라,서수경,손순희,정경희,정유선 효성여자대학교 가정대학 학도호국단 1985 家政大論集 Vol.4 No.-

대구 시내 전역에 산재해 있는 튀김 음식점과 스넥코너등에서 튀김중인 기름에 대한 변패도를 알아 보기 위해 여름철과 겨울철 두 계절에 또 튀김물의 종류별로 시료 186개를 채취하여 산가, 과산화물가, carbonyl가 및 TBA가를 측정한 결과는 아래와 같다. 1. 산가, 과산화물가, carbonyl가 및 TBA가는 각각 2.2, 47, 19, 0.7로 나타났다. 2. 여름철로가 겨울철을 비교해 본 결과는 산가, 과산화물가, carbonyl가는 여름철이 높았으나 TBA가는 두 계절이 비슷하였다. 3. 튀김물의 종류에 따른 기름의 변패도는 오뎅, 핫도그, 닭, 야채, 도나스 순으로 나타났다. In order to investigate the degree of changes in quality of frying oils to be used atsnack corners and street stalls in Taegu area. acid value (AV), peroxide value(POV), carbonyl value (COV), and TBA value were measured. 95 samples insummer and 91 samples in winter were collected from oils fried for fish cake, hotdogs,chicken, vegetable and doughnuts. The mean value of AV, POV and COV on the fryingoils collected in summer were higher than those in winter, while TBA value of oilsin summer ·was similar to that in winter. According to the kinds of fried food, thedegree of the change in quality of frying oil was high in order of fish cake, hotdog,chicken, vegetable ana doughnut.

역전파 신경회로망을 이용한 가공조건에 따른 STD-11 절단면의 신뢰성 평가

김선진,성백섭,조규재,김하식,반제삼 한국공작기계학회 2004 한국생산제조학회지 Vol.13 No.5

The purpose of this study was to present the method to choose the optimum machining condition for the wire EDM. This was completed by examining the ever-changing quality of the material and by improving the function of the wire electric discharge machine. Precision metal mold products and the unmanned wire electric discharge machining system were used and then applied in industrial fields. This experiment uses the wire electric discharge machine with brass wire electrode of 0.25mm. To measure the precision of the machining surface, average values are obtained from 3 samples of measures of center-line average roughness by using a third dimension gauge and a stylus surface roughness gauge.

자동화학검사용 영동시약의 평가

이성규,공선영,송선미,이수연,김종원 대한임상검사정도관리협회 1992 臨床檢査와 精度管理 Vol.22 No.2