IEEE 802.11n WLAN용 다중모드 LPDC 복호기의 최적 설계조건 분석

박해원,나영헌,신경욱,Park, Hae-Won,Na, Young-Heon,Shin, Kyung-Wook 한국정보통신학회 2011 한국정보통신학회논문지 Vol.15 No.2

IEEE 802.11n 표준에 제시된 3가지 블록길이(648, 1296, 1944)와 4가지 부호율(1/2, 2/3, 3/4, 5/6)을 지원하는 다중모드 LDPC(low density parity check) 복호기의 최적 설계조건을 분석하였다. 최소합 알고리듬과 layered 복호방식이 적용된 LDPC 복호기의 고정소수점(fixed-point) 시뮬레이션 모델을 Matlab으로 개발하였다. 고정소수점 시뮬레이션을 통해 복호기 내부 비트 폭, 정수 부분과 소수 부분의 비트 폭에 따른 복호 수렴속도를 분석하여 다중모드 LDPC 복호기의 하드웨어 구현을 위한 최적의 설계조건을 탐색하였으며, 블록길이와 부호율에 따른 복호성능을 분석하였다. This paper describes an analysis of optimal design conditions of multi-mode LDPC(low density parity check) decoder which supports three block lengths (648, 1296, 1944) and four code rates (1/2, 2/3, 3/4, 5/6) for IEEE 802.11n WLAN system. A fixed-point model of LDPC decoder, which adopts min-sum algorithm and layered decoding scheme, is implemented using Matlab. From fixed-point simulation results for various bit-width parameters such as internal bit-width, integer/fractional part bit-widths, optimal design conditions and decoding performance of LDPC decoder are analyzed.

64비트 블록암호 알고리듬 HIGHT의 효율적인 하드웨어 구현

박해원,신경욱,Park, Hae-Won,Shin, Kyung-Wook 한국정보통신학회 2011 한국정보통신학회논문지 Vol.15 No.9

This paper describes a design of area-efficient/low-power cryptographic processor for HIGHT block cipher algorithm, which was approved as standard of cryptographic algorithm by KATS(Korean Agency for Technology and Standards) and ISO/IEC. The HIGHT algorithm, which is suitable for ubiquitous computing devices such as a sensor in USN or a RFID tag, encrypts a 64-bit data block with a 128-bit cipher key to make a 64-bit cipher text, and vice versa. For area-efficient and low-power implementation, we optimize round transform block and key scheduler to share hardware resources for encryption and decryption. The HIGHT64 core synthesized using a 0.35-${\mu}m$ CMOS cell library consists of 3,226 gates, and the estimated throughput is 150-Mbps with 80-MHz@2.5-V clock. 한국기술표준원(KATS)과 국제표준화기구(ISO/IEC)에 의해 표준으로 채택된 블록암호 알고리듬 HIGHT용 저면적/저전력 암호/복호 코어를 설계하였다. HIGHT 알고리듬은 USN, RFID와 같은 유비쿼터스 환경에 적합하도록 개발되었으며, 128 비트 마스터 키를 사용하여 64 비트 평문을 64 비트 암호문으로, 또는 그 역으로 변환한다. 저면적과 저전력 구현을 위해 암호화 및 복호화를 위한 라운드 변환 블록과 키 스케줄러의 하드웨어 자원이 공유되도록 설계를 최적화하였다. 0.35-${\mu}m$ CMOS 표준 셀 라이브러리를 이용한 합성결과, HIGHT64 코어는 3,226 게이트로 구현되었으며, 80-MHz@2.5-V로 동작하여 150-Mbps의 성능을 갖는 것으로 평가되었다.

초등학교 태권도 수련생의 성격특성이 지도효율성에 미치는 영향

박해원(Park, Hae-Won),손원일(Son, Won-Il) 한국체육과학회 2023 한국체육과학회지 Vol.32 No.6

The purpose of this study is to investigate the impact of elementary school Taekwondo students personality factors on their coaching efficiency. For this purpose, 350 elementary school Taekwondo trainees were selected as research subjects. The personality factors and coaching efficiency of the study subjects were measured through questionnaires. Multiple regression analysis was performed for statistical processing. SPSS 26.0 was used as the statistical program. At this time, the significance level was set at .05. As a result, first, conscientiousness, extroversion, and introversion were found to have a statistically significant effect on perceived skill improvement. Second, conscientiousness and introversion were found to have a statistically significant impact on perceived teaching satisfaction. The results of the study are expected to provide various changes and implications for new teaching strategies according to personality factors in the future Taekwondo teaching process.

DVSC를 이용한 개선된 APF의 설계

박해원(Hae-Won Park),김상우(Sang-Woo Kim),한운동(Wun-Dong Han),김병진(Beung-Jin Kim),전희종(Hee-Jong Jeon) 대한전기학회 2000 대한전기학회 학술대회 논문집 Vol.2000 No.7

청장년에서의 비장적출술

박해원(Hae Won Park),김유선(Yu Seun Kim),박기일(Ki Il Park) 대한외과학회 1987 Annals of Surgical Treatment and Research Vol.33 No.5

진단분류모형을 적용한 운동선수 컨디션 관리 측정 척도 개발

박해원(Hae-Won, Park),김세형(Sae-Hyung Kim) 한국체육측정평가학회 2020 한국체육측정평가학회지 Vol.22 No.3

이 연구는 진단분류모형을 적용하여 운동선수 컨디션 관리 측정 척도를 개발하고 척도 개발 연구에 있어 진단분류모형의 적용 가능성을 탐색하는데 목적이 있다. 연구 대상자는 고등학교 운동선수 550명을 모집단으로 선정하여 자료를 수집하였으며, SPSS 22.0과 R project CDM package를 이용하였다. 연구의 목적을 달성하기 위해 첫째, 델파이 검증을 통해 예비 척도를 개발하였다. 둘째, 개발된 예비척도를 이용하여 Q행렬을 개발하였다. 셋째, 개발된 예비 척도는 Q행렬과 진단분류모형의 Fusion 모형을 이용하여 타당도를 검증 하였다. 그 결과 부상관리(7문항), 훈련관리(5문항), 고유행동관리(5문항), 정신관리(4문항), 대인관리(5문항), 영양관리(4문항)의 속성이 나타났으며, 총 6개 속성 30문항으로 나타났다. 이 연구는 진단분류모형을 적용하여 척도개발 연구를 실시하였다는 점에서 의미를 가지며, 개발된 결과는 개인 별 프로파일 특성과 속성의 보유 여부를 판단하는데 활용할 수 있을 것이다. The purpose of this study is to develop an athlete"s condition management measurement scale by applying the diagnostic classification model, and to explore the applicability of the diagnostic classification model in scale development research. For this study, 550 high school athletes were selected as a population and data were collected, and SPSS 22.0 and R project CDM package were used. To achieve the purpose of this study, first, a preliminary scale was developed through Delphi verification. Second, the Q matrix was developed using the developed preliminary scale. Third, the developed preliminary scale was validated using the Q matrix and the fusion model of the diagnostic classification model. As a result, the attributes of injury management (7 questions), training management (5 questions), unique behavior management (5 questions), mental management (4 questions), interpersonal management (5 questions), and nutrition management (4 questions) appeared. , There were a total of 30 questions with 6 attributes. This study is meaningful in that a scale development study was conducted by applying a diagnostic classification model, and the developed result could be used to determine whether or not to possess individual profile characteristics and attributes.

학생선수 성범죄 피해 행동반응 측정 척도 개발 및 타당도 검증

박해원(Hae-Won Park),김세형(Sae-Hyung Kim) 한국체육측정평가학회 2021 한국체육측정평가학회지 Vol.23 No.3

이 연구는 학생선수 성범죄 피해 행동반응 측정 척도를 개발하고 타당화 하는데 연구의 목적이 있다. 이를 위해 학생선수 76명을 대상으로 개방형 설문조사를 실시하였으며, 수집된 자료는 부호화 작업을 통해 핵심 단어와 요인을 추출하였다. 추출된 단어와 요인은 전문가 협의를 거쳐 5요인 31문항(언어적 요인 6문항, 신체적 요인 7문항, 시각적 요인 7문항, 지도자 요인 5문항, 동료 요인 6문항)의 학생선수 성범죄 피해 행동반응 척도의 예비문항을 개발하였다. 개발된 예비 척도는 학생선수 547명을 대상으로 Rasch 측정 모형을 적용하였으며, 분석을 위해 Winsteps 5.1.4 프로그램을 이용하였다. 그 결과 학생선수 성범죄 피해 행동반응 측정 척도는 최종 5요인 23문항으로 구성되었다. 그러나 응답범주의 적합도와 몇몇의 문항이 차별기능문항으로 추출되었다는 점에서 추후 후속연구를 통해 문항을 수정하여 보다 타당한 척도의 개발이 요구된다고 할 수 있다. The purpose of this study is to develop and validate a measure of student athlete sex crime victim behavior response. For this reason, an open questionnaire survey was conducted on 76 student athletes, and important words and factors were extracted from the collected data via coding processing. The extracted words and factors are 31 questions of 5 factors (6 linguistic factors, 7 physical factors, 7 visual factors, 5 director factors, 6 colleague factors) after consultation with experts. We have developed a preliminary question for the Student athletes sex crime behavior response Scale. For the developed preliminary scale, Rasch model was applied to 547 student athletes, and Winsteps 4.0.1 program was used for analysis. As a result, victims of sex crime behavioral response scale for student-athletes consisted of 23 items with 5 factors. However, it can be said that it is necessary to develop a more valid scale by modifying the questions through follow-up studies in the sense that the fit of the response categories and some of the questions were extracted as differential function questions.

고조파 저감과 입력역률 개선을 위한 전력용 능동필터의 설계

박해원(Hae-Won Park),최성관(Seong-Kwan Choi),김호(Ho Kim),김병진(Beung-Jin Kim),전희종(Hee-Jong Jeon) 대한전기학회 2000 대한전기학회 학술대회 논문집 Vol.2000 No.11

허용변수를 고려한 남자프로농구 승패결정요인 분석

박해원(Park, Hae-Won),김세형(Kim, Sae-Hyung) 한국체육과학회 2016 한국체육과학회지 Vol.25 No.1

This study has analyzed game record factors that influence victory or defeat based on the scoring of 10 men’s pro basketball teams in 2014-2015. Particularly, this study is intended to analyze and predict the causes of victory or defeat in men’s pro basketball by newly adding each team’s allowance variable as one of the game record factors. For this study, among the game factors officially defined by the Korean Basketball League (KBL), this author selected 10 factors, FT, 2P, 3P, OFF, DEF, AST, ST, W/FT, W/OFT, TO, and constructed the success variables based on success in each team and the allowance variables based on the allowances from the opponent team. Also, to analyze the effects of those game record factors on their victory or defeat statistically, both the independent t-test and logistic regression analysis were conducted. For the two statistical analyses, SPSS 22.0 was employed, and the significant level was set as.05. According to the results of the independent t-test, success in FT, 2P, DEF, AST, ST, W/FT, TO among the success variables as well as success in FT, 2P, AST, W/FT among the allowance variables indicated statistically significant difference. According to the results of the logistic regression analysis, as the game record factors to predict victory, out of the success variables, success in FT, 2P, 3P, DEF, ST, W/FT, and TO showed statistically significant difference. In more detail, there is more possibility of victory if success in FT, 2P, 3P, DEF, ST is more or if W/FT, TO is less. Concerning the allowance variables, there is higher possibility of victory when success in FT, AST, ST is less or when W/FT is more.

노인의 주관적 건강 인식에 영향을 미치는 요인 분석

박해원(Park, Hae-Won),김세형(Kim, Sae-Hyung) 한국체육과학회 2017 한국체육과학회지 Vol.26 No.2

The purpose of this study was to find out factors influencing subjective health perception in the aged who are over 65 and verify the relative effects of each factor. Using the Korean Longitudinal Study of Aging (KLoSA), data were collected the 5th year performed by Korea Employment Information Service. Referring to advanced research, selected variables thought to influence their Self-Perceived Health Status and then chose independent variables Analysis. Chi-square test and Logistic regression measurement computer program, SPSS 22.0, was used to analyze the data. A lpha level was set a t 0.05. According to the analysis results, if they are younger, their educational level is higher, they drink, their weight is normal, they exercise regularly, they have a job, or lastly, they identify their subjective social status more highly, they tend to perceive their subjective health more positively(p<.001). Based on the results, it will be necessary to develop various programs so as to improve Self-Perceived Health Status in the aged in Korea.