유비쿼터스 환경을 위한 임베디드 정보표시 장치 시스템 구현

이병권,김석일,전중남 충북대학교 컴퓨터정보통신 연구소 2004 컴퓨터정보통신연구 Vol.12 No.1

가전제품 및 생활도구에 운영체제가 내장됨으로써 네트워크 및 파일시스템을 사용할 수 있게 되었고, 그 결과로 제품이 지능화되고 소형화되고 있다. 본 논문에서는 ARM, x86, 그리고 XScale기반으로 임베디드 플랫폼에서 동작하는 임베디드형 정보표시장치를 설계하고 구현 과정을 설명한다. 각 플랫폼에 대한 커널 포팅, 파일시스템 구성 과정을 설명하고, 서버 클라이언트 환경에서 동작하는 정보 표시 소프트웨어에 대하여 설명한다. 서버는 화면에 여러 종류의 데이터와 및 제어정보를 클라이언트에게 보내고, 클라이언트는 수신된 데이터를 재조립하여 지정된 영역에 표시한다. With the help of embedded operating system, the electric home appliances have been able to access the network and file system, and become intelligent and miniaturized. In this paper, we explain an information display system operating on three embedded platforms: ARM, x86, and XScale. For each platform, we describe the process of kernel porting and file system construction. And we also explain the information display software based on the server-client environment. The server sends various kinds of display data and control data to the clients. A client reassembles the received data and displays them in the appropriate location of its screen

2-Bromoacetylnaphthalene을 螢光誘導體化劑로 利用한 Ibuprofen의 HPLC 分析에 관한 硏究

李允中,金容熙,曺正吉,禹炳虎 성균관대학교 약학연구소 1990 成均藥硏論文集 Vol.2 No.1

Abstract-A simple, rapid and high sensitive HPLC method for determination of ibuprofen is investigated. 2-Bromoacetylnaphthalene was used as the pre-column fluoresent derivatizing reagent for high performance liquied chromatography. Ibuprofen was derivatized quantitatively into fluorescent compound by reacting with 2-bromoacetylnaphthalene in the presence of 18-crown-6 ether in acetonitrile. The optimum conditions for the derivatization such as concentration of KOH, 18-crown-6 and 2-bromoacetylnaphthalene, reaction temperature and reaction time were investigated. The structure of ibuprofen derivative was confirmed from IR, mass spectra. The fluorescence properties of ibuprofen derivative were examined. The derivative was separated on a reverse phase column in isocratic elution mode using the secondary mixture of acetonitrile and water as the mobile phase. The effluent was monitored by fluorometer. The calibration plots for the peak area versus concentration of ibuprofen observed to be linear.(r=0.999)

산전초음파에서 발견된 기형의 계통별 진단 임신 주수의 차이

이병관,김선미,홍준석,심순섭,박중심,전종관,윤보현,신희철 대한산부인과초음파학회 2003 대한산부인과초음파학회지 Vol.5 No.2

성장중인 백서 두개관의 세포내 Purine Nucleotides에 관한 연구

민병무,김중수,이종흔 대한구강생물학회 1989 International Journal of Oral Biology Vol.13 No.2

The present experiment was performed to investigate the contents of purine nucleotides in developing rat calvaria. The portions of calvarias containing frontal and parietal bones was separated from 19-day-old rat foetuses. Specimens were assayed for their contents of intracellular purine nucleotides by high performance liquid chromatography in the acid extract of the tissues with rapid quenching. The concentration of intracelluar adenine nucleotides pool was higher than that of guanine nucleotides pool, but the guanine nucleotides pool/adenine nucleotides pool ratio was much higher than those of most mammalian tissues. The concentration of IMP was very lower than those of AMP and GMP.

3세 소아환자의 치상돌기(Odontoid Process) 기저부 골절전위 치험 1례

전병윤,김영수,최중언 대한신경외과학회 1988 Journal of Korean neurosurgical society Vol.17 No.5

The authors presented a case of fracture and dislocation at odontoid base in 3 year old patient. This fracture and dislocation was successfully treated by the Gardner's tong traction followed by Halovest application. We also reviewed the characteristics, treatment and prognosis of the pediatric odontoid process fracture.

객체 지향 컴퓨터 시스템의 Method Lookup 캐쉬에 관한 연구

김병기,김관중,염혜란 崇實大學校 生産技術硏究所 1993 論文集 Vol.23 No.-

We propose a new method lookup cache for improving the time and the memory efficiency in the object oriented system. The method lookup is a major execution overhead in the object oriented programs. For improving the performance of object oriented program execution, an efficient method lookup mechanism is essential. The static cache, a solution to the method lookup problem, provides a constant time lookup, but consumes excessive memory. Many object oriented system use the coloring scheme that reduces memory size in the static cache. However memory waste still exists in the colored cache. New cache proposed in this paper provides a solution to the memory consumption problem. Moreover it is efficient for solving the multiple inheritance problem that causes memory consumption in the colored cache. Each entry of the new cache consists of method ID and code address fields. Furthermore, the tagging mechanism in this cache enables to perform efficiently the method lookup for methods that have a same name and are defined in different classes.

휴대용 계산기에 의한 착물의 안정도상수의 계산

윤세중,오제직,박병빈,박성록 공주대학교 사범대학 과학교육연구소 1980 과학교육연구 Vol.12 No.1

A Pocket calcultor program(Texas Instruments TI58 or TI59) was constructed for evaluation of the Successive stability constants of Nikel-glycine complex. This program conld be used for many other systems having similar eguhibrium scheme and experimental method. TI59, this program could be extended to the calculation of ionic strength correction and high n Complexes.

논리 프로그램의 병렬 실행에 관한 연구

김병기,김관중 崇實大學校 基礎科學.生産技術硏究所 1989 論文集 Vol.19 No.-

Logic programs have many kinds of parallelism inherently. Various parallel execution mechanisms have been proposed to exploit these parallelisms. Among them CCND languages exploit don't care nondeterminism. Thus they can find only one solution. To build a general model of parallel execution for logic programs, we devise a new method to find all solutions with the CCND languages. A meta predicate is used to control the commit operation. With it the CCND languages can exploit don't know nondeterminism as well as don't care nondeterminism.

學敎給食이 學生의 體格, 體力 및 體質에 미치는 影響

甘炳浩,申重圭,南喆鉉 韓國學校保健學會 1992 韓國學校保健學會誌 Vol.5 No.1

The study examined the difference of the physique, the physical strength, and the physical constitution between meal and non-meal service schools at the countryside, and concluded as follows : 1) The effects on the physical development Meal service school student's height was 0.41 ~ 2.38 cm taller, weight 0.21 ~ 1.58 kg heavier, and the chests 0.15 ~ 2.55 cm bigger than the non-meal service school students. Therefore, the effects of the school meal service on the student's physique development proved positive. 2) The effects on the physical strengh Today, the student's physical growth is reinforced by consuming high calorie food, while their physical exercise is decreased. As a result, obesity becomes another problem. In this respect, physical strength is a significant factor in judging the physical condition of the students. This study compared the meal service schools with the non-meal service schools by suing six items of the physical strength test those schools. In comparison, the meal service school students were better than the others in most items except in the eleven year old girl's 100 meter running and the ball throwing, and the ten year old boy's 600 meter running. It means that school meal service affects the physical growth in a positive manner. 3) The effects on the physical constitution The students in their growing period should have their meals not only balanced, but regularly since this helps to maintain their health. Insufficient nutrition may disturb the balanced physical growth of cause a week or powerless physical constitution. As shown at the table 6, meal service school students who had a balanced meal have 0.01% lower incidence of disease, and 3.11 ~ 7.32 % less myophia than the other. The average 0.39 to 0.63 cavity of the meal service school students also show that their constitutions are better than the non-meal service ones. In conclusion, the school meal service program gives every student a regular nutritious meal which results in a balanced physical growth. Erentually, the healthier students could be the healthier social menbers which promise a brighter society in the future.

1-Bromoacetylpyrene 誘導體化劑를 利用한 carboxyl基 含有成分의 分析에 관한 硏究(Ⅳ) : Prostaglandin F_2α의 HPLC에 依한 定量 Determination of prostaglandin F_2α by HPLC

李允中,申秉澈,曺正吉,李東宣 成均館大學校 科學技術硏究所 1989 論文集 Vol.40 No.1

A simple, rapid and high sensitive method for the determination of prostaglandin F_2α (C_20H_34O_5) is described. 1-bromoacetylpyrene was used as the pre-column fluorescent derivatizing reagent for high performance liquid chromatography. PG F_2α was derivatized quantiatively into fluorescent compound by reacting with 1-bromoacetylpyrene in the presence of 18-crown-6 in acetonitrile. The derivative was separated on a normal phase column in isocratic elution mode using the secondary mixture of chloroform and tetrahydrofuran as the mobile phase. The effluent was monitored by fluorometer. The calibration plots for the peak heights versus concentrations of PG F_2α were observed to he linear.