• Journal of Korea Society of Industrial Information Systems
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• v.17 no.1
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• pp.95-104
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• 2012

Although the educational institutions of computers have evolved to train students in pace with the changes of computing, many students still believe that computer programming is hard to be mastered. The reluctance of students toward programming languages have been tied to the decrease of computer-related majors and now many countries are in short of computer programmers. By investigating the similarities among eleven popular programming languages, this research is intended to measure the relative distances and understand the dimensions that scattered the languages.

• Journal of the Korean Society of Food Science and Nutrition
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• v.26 no.1
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• pp.144-147
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• 1997

For the investigation of antitumor agents, two kinds of sesquiterpene lactones were isolated and purified from Chrysanthemum boreale M. and designated as Compound I and ]U . And then in vivo antitumor test of the sesquiterpene lactones was carried out against ICR mice. In vivo test against Sarcoma180 implanted ICR mice, life prolongation effects of Compound I and II were showed as 143% and 134% at the dose of 10mg/kg, respectively. Besides, at the tested group mixed Compound I and II each 1mg/kg was showed rather high life prolongation effect as 158%.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.35 no.11B
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• pp.1725-1731
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• 2010

In this paper, we proposed preamble structure and code acquisition method to improve code acquisition performance for DS-SS/TDMA packet communication systems. Proposed algorithm changes the short PN code position depending on the sub slot number. Proposed algorithm also saves position differences between short PN codes and position offsets between short PN codes and data starting position of the TDMA packet. By using the position difference table, proposed algorithm can find out exact data starting position even though some sub slots were defected. As a result of simulation, we concluded that proposed algorithm has at least 5dB gain compared to conventional method when same short PN code is used. Moreover, proposed algorithm shows same code acquisition performance only with 1/4 shortened short PN code compared to conventional method.

• Proceedings of the KIEE Conference
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• 2011.07a
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• pp.392-393
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• 2011

본 논문에서는 제주 한림 풍력발전소와 한림 변전소간에 구축할 예정인 ${\pm}80kV$ 60MW HVDC 시스템의 절연 설계를 위해, 각 구성품의 절연 등급을 수 계산으로 설계하였다. 계산된 절연등급을 기반으로 한림 변전소와 한림 풍력 단지에 설치되는 HVDC 기기들의 최소 절연거리를 IEC 규격에 맞게 설계하였다. AC/DC 기기의 특정 전압 등급에 견딜 수 있는 최소 거리는 실제 시스템 설치 시 반영함으로써 검증하였다.

• Proceedings of the Korea Information Processing Society Conference
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• 2005.05a
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• pp.577-580
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• 2005

본 논문에서는 임상의들의 진료데이터를 토대로 진료경로를 동적으로 생성하는 방법을 기술한다. 각 진료단계에서 추출된 규칙들을 토대로 진료경로를 생성하는데, 이를 위해 전자의무기록으로 구성된 임상 데이터를 기반으로 연관규칙마이닝을 이용하여 진료단계별 규칙을 추출하였다. 신뢰성 있는 진료경로의 추출이 이루어지면 의료 서비스의 질을 높이고, 병원 경영의 효율성 증대에 도움을 줄 수 있다.

• The Journal of Korean Physical Therapy
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• v.14 no.4
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• pp.64-74
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• 2002

The SSEP(SomatoSensory Evoke Potentials) test is a valid and repeatable technique which correlates with clinically assessed joint position & vibration sense, skin touch & pressure sense. Also SSEP study is a simple and quantitative test, and has been used to evaluate the sensoty system along the somatosensory pathway from peripheral sensory receptor to the cortex. The ascending pathway of SSEP has been know to be posterior column-lemniscal pathway, but not without controversy. There are two kind of test mathods : one of test is median nerve SSEP and other test is posterior tibial nerve SSEP. Recently, SSEP used to performed to evaluate the usefulness of dermatomal SSEP(D-SSEP) and segmental SSEP(5-SSEP) for the diagnosis of lumbasacral radiculopathy, and it can be measure of ingual ahd palatine evoked potentials & indicator of medullary function useful for the diagnosis of brain death.

• Proceedings of the Korean Society of Computer Information Conference
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• 2008.06a
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• pp.105-110
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• 2008

웹서비스는 XML기반의 표준인 SOAP, WSDL, UDDI를 이용하여 인터넷을 통해 기능을 제공해 주는 서비스 기반 아키텍처의 대표적 기술이다. 웹서비스의 개수가 많아지고 종류가 다양해짐에 따라, 요청자의 요구사항에 맞는 웹서비스를 선택하는 것이 중요하게 되었으며, 여기서 웹서비스의 선택 시 QoS(Quality of Service)는 중요한 기준이 된다. 하지만 웹서비스의 QoS는 동적으로 변하고, 이로 인해 요청자의 QoS요구사항에 만족하지 않는 웹서비스가 되기도 한다. 본 논문에서는 요청자의 QoS요구사항에 적합한 웹서비스를 찾고, 웹서비스의 QoS변화로 인하여 웹서비스를 동적으로 변경하는 프레임워크를 제안한다. 그리고 웹서비스를 동적으로 변경하는 경우에 필요한, 각 웹서비스의 인터페이스 적응 및 기존 작업의 보장에 대한 해결방법도 함께 제시한다.

• 한국IT서비스학회:학술대회논문집
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• 2010.05a
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• pp.248-254
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• 2010

우리나라는 1960년대 이후 급격한 산업화로 인해 도시의 구조가 변화하기 시작하였으며 2004년 이후부터 대두된 유비쿼터스 도시(U-City)는 사회 각 분야에서 논의가 본격화되고 있다. U-City는 언제 어디서나 도시의 경쟁력과 삶의 질을 향상하기 위해 유비쿼터스기술을 도입한 도시 내 서비스가 제공되는 것이며 현재 우리나라의 U-City는 체계적인 서비스 도출 방법이 미흡한 실정이다. 이러한 문제점을 바탕으로 본 연구에서는 4개의 특징적인 가로를 대상으로 U-서비스를 비교 분석하여 향후 체계적인 서비스 도출 방안과 지속적인 서비스 운영 방안, 이용자 중심의 서비스 도출 방안에 대해 기본방향을 제시하고자 한다.

• The korean journal of orthodontics
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• v.36 no.2 s.115
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• pp.161-169
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• 2006

The purpose of this study was to investigate cephalometrically the short term static velopharyngeal changes in 25 patients (10 boys and 15 girls, aged from 5 years 9 months to 12 years 10 months in the beginning of treatment) with skeletal Class III malocclusions who underwent nonsurgical maxillary protraction therapy with a facemask. The linear, angular and ratio measurements were made on lateral cephalograms. Only the change in hard palatal plane angle was negatively correlated with the change in maxillary depth or N-perp to A (p<0.01). The change in velar angle showed a statistically significant increase (p<0.001). This change was influenced more by the soft palatal plane angle than by the hard palatal plane angle (p<0.001). The changes in soft tissue nasopharyngeal depth and hard tissue nasopharyngeal depth showed statistically significant increases (p<0.001). Correlations between the changes in soft tissue (or hard tissue) nasopharyngeal depth and the change in soft palatal plane angle were significant (p<0.05). The increase in hard palate length was statistically significant (p<0.001). The change in hard palate length was negatively correlated with the change in soft tissue nasopharyngeal depth (p<0.05). The change in need ratio S (C) showed a statistically significant increase (p<0.001). But this difference was within the normal range reported by previous studies. These findings indicate that the velopharyngeal competence was maintained even if the anatomical condition of the static velopharyngeal area were changed after maxillary protraction.

• The Journal of Korean Physical Therapy
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• v.10 no.1
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• pp.127-138
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• 1998

This study was carried out tn invstigate and compare biomechanical characteristics during free speed gait in hemiplegic patients after stroke who took therapeutic exercise by analyzing kinematic and kinetic data in the sagital plane and electromyographic data. Six patients($41\~69$ years old) and age-matched six volunteers in good health(51-61 years old) wire studied. The patients were sorted into two groups, depending on their self-speed of walking : fast speed group(3 patients) and slow speed group(3 patients). The results were as fellows. : 1. In spatio-temparal parameters, affected and unaffected side of fast group showed symetry but blew group showed asymetry of single limb support, opposite foot contact and stance phase (p<0.05). Compared with normal group, patient group showed slower velocity, shoter stride length and longer double limb support (p<0.05). 2. In the pelvic anterior tilt, patient group showed lower valued than normal group. It. In the ground reaction force-vertical force, fast group showed similar double peak gragh compared with normal group, butvslow group showed lower values without double peak (p<0.05).