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배영현(Young Hyun Bae),최종무(Jongmoo Choi),이동희(Donghee Lee),노삼혁(Sam H. Noh),민상렬(Sang Lyul Min) 한국정보과학회 2005 정보과학회 컴퓨팅의 실제 논문지 Vol.11 No.4
휴대 전화와 같은 소형 이동 기기에서 데이터 저장 장치로 널리 사용되는 플래시 메모리를 위한 파일 시스템은 고속의 데이터 쓰기 및 읽기 성능뿐만 아니라 소형 이동 기기의 사용 환경에 적합하도록 메모리 사용량이 적고 전원 오류 등의 상황에서도 데이터의 무결성을 보장하여야 한다. 본 논문에서는 파일 시스템 수준에서 플래시 메모리의 물리적 동작 특성과 데이터 저장 상태를 고려하여 데이터 쓰기 요청을 제어함으로써 성능을 최적화한 플래시 메모리 파일 시스템을 구현한다. 구현된 파일 시스템은 모든 작업을 트랜잭션 개념으로 처리하여 오류 상황에서도 저장 장치의 신뢰성을 보장하며 단순한 구조의 주소 사상 기법을 적용하여 메모리 사용량을 최소화한다. 그리고 실제 하드웨어 환경에서 제안된 기술을 구현하고 기존 플래시 메모리 파일 시스템과의 비교 측정을 통해 성능의 우수성을 보인다. File systems for flash memory that is widely used as a storage device for mobile devices should provide not only high-performance data reads and writes but also a guarantee on the data integrity even on a power failure. In this paper, we explain the design and implementation of a file system for flash memory that considers flash memory's physical characteristics and the data layout in the file system to give an optimized write performance. This file system guarantees the reliability against various system failures including a power failure by using the transaction concept in write processing. In addition, the file system minimizes the memory usage by using a simple static mapping. In the paper, we also describe the implementation of the file system and compare its performance with other existing flash memory file systems.
배영현 ( Young-hyun Bae ),윤천성 ( Chun-sung Youn ) 한국미용학회 2018 한국미용학회지 Vol.24 No.2
The academic discussion on cosmetology has started since the Department of Cosmetology was introduced in college curriculum. As a great deal of research about cosmetology has been made, technologies used in the beauty industry field need to be established in a systemic and scientific way. In particular, verifying multi-technologies, based on scientific logics becomes integral in the beauty industry and cosmetology field. In order to verify such technologies, it needs to establish the system that can program, assess and complement them. Multiple beauty industry programs would serve as a good momentum for the evolution of beauty field for programs themselves are performed according to systemic and scientific procedures. The analysis of the research trend of beauty industry programs (the title of the research) can be said to be a preliminary factor necessary for establishing the research on programs for a more advanced beauty industry and enhancing its quality. In this regard, the study is of significance in that it made the first attempt to analyze the research trend of beauty industry programs. The purpose of the study is to analyze the characteristics of research periods, research fields, research subjects, research titles, and research methods, targeting national thesis on the title of beauty industry programs to understand the current status of the research and present the future direction and problems.
플래시메모리 파일 시스템을 위한 효울적인 소거 횟수 평준화 기법
배영현(Young Hyun Bae),최종무(Jongmoo Choi),이동희(Dong hee Lee),노삼혁(Sam H. Noh),민상렬(Sang Lyul Min) 한국정보과학회 2004 한국정보과학회 학술발표논문집 Vol.31 No.2Ⅰ
이동 기기의 처장 장치로 널리 사용되는 플래시 메모리는 데이터를 기록하기 전에 해당 블록이 미리 소거되어 있어야 하는 제약이 있다. 또한 각 블록은 소거 횟수의 한계를 가지고 있기 때문에 특정 블록이 집중적으로 사용되는 경우에는 일부 블록의 수명이 일찍 다하게 되어 저장 장치로서의 수명도 짧아지게 된다. 따라서 플래시 메모리 파일 시스템은 고속의 데이터 입출력 성능뿐만 아니라 기록과 소거 동작이 특정 블록에 집중되지 않도록 하여 저장 장치의 내구성을 개선하는 소거 횟수 평준화 기능을 제공해야 한다. 기존에 제안된 소거 횟수 평준화 기법은 복잡한 계산을 필요로 하며 각 블록의 소거 횟수를 유지해야 하는 비용 등으로 인해 차원이 부족한 소형 이동 기기에서 구현하기에는 비효율적이다. 본 논문에서는 플래시 메모리 파일 시스템에서 구현과 동작이 단순하고 어떠한 데이터 접근 형태에 대해서도 평준화 성능이 우수한 효율적인 소거 횟수 평준화 기법을 제안한다. 그리고 제안된 기법을 구현하여 기존 플래시 메모리 파일 시스템의 소거 횟수 평준화 성능과 비교 평가 한다.
물리치료사의 업무관련성 근골격계 통증, 삶의 질과 프리젠티즘의 관계
배영현 ( Young Hyeon Bae ),이종훈 ( Jong Hoon Lee ),유현주 ( Hyeon Ju Yoo ),김동언 ( Dong Eon Kim ),이보라 ( Bo Ra Lee ),김연희 ( Yun Hee Kim ),하현근 ( Hyun Geun Ha ) 한국산업위생학회 2012 한국산업보건학회지 Vol.22 No.1
Background: The purpose of this study was to analyze the associations between physical therapists` work-related musculoskeletal pain, quality of life (QoL), and presenteeism. Methods: Self-reported questionnaires were given to 402 physical therapists in Korea. Variables examined included the prevalence of pain sites related to work, pain intensity, pain pattern, pain frequency, pain duration, pain rating score (PRS), general characteristics, QoL, and presenteeism. Results: Of the 314 physical therapists who responded, 251 (79.9%) reported work -related musculoskeletal pain in at least one body part. The most affected regions included the wrist and hand (21.0%), shoulder (19.6%), and lower back (19.1%). On average patients, QoL and presenteeism differed significantly between physical therapists who reported pain and those who did not (P < 0.05). QoL showed a negative correlation with the work-related musculoskeletal pain (P < 0.01) and presenteeism (P < 0.01), while the presenteeism and work-related musculoskeletal pain showed positive one(P < 0.01). Factors influencing a physical therapist`s QoL included presenteeism, Working venues (Convalescent hospital), Work status (Contra ct worker) and professional experience, while the presenteeism included QoL, work status (Intern), PRS, working venues (Convalescent hospital), Area of specialty (Pediatrics), age, sex and working hour. Conclusions: Results show that physical therapists appear to be at a higher risk for work-related musculoskeletal pain. Therefore, administrators need to use the intervention strategies to manage the presenteeism and QoL of physical therapists.
유방암의 척추전이 환자에 대한 천수근 약침을 병행한 한의학적 치료 증례 1례
배영현,이종환,김해솔,김호선,서창용,김노현,송주현,염승철,Bae, Young-Hyeon,Lee, Chong-Hwan,Kim, Hae-Sol,Kim, Ho-Sun,Suh, Chang-Yong,Kim, No-Hyeon,Song, Ju-Hyun,Yeom, Seung-Chul 척추신경추나의학회 2015 척추신경추나의학회지 Vol.10 No.1
Objectives : Most of pains are important symptoms caused by cancer transpered to spine. Harpagophyti Radix Pharmacopuncture is highly effective in reducing fever, pain, inflammation but was never used to reduce pain from cancer transpered to spine. So I intended to use Harpagophyti Radix Pharmacopuncture to control pain. The purpose of this study is to evaluate the clinical application of Harpagophyti Radix Pharmacopuncture for Bone Metastasis of Breast Cancer and Spinal Stenosis. Methods : We examined patient with Bone Metastasis of Breast Cancer and Spinal Stenosis who admitted Jaseng Korean Medicine Hospital. The patient was treated by Korean Medicine treatment and Harpagophyti Radix Pharmacopuncture. This case was assessed by Numerical Rating Scale(NRS), Oswestry Low Back Pain Disability Index(ODI), Short-Form 36 Health Survey(SF-36), ROM(Range of Movement) and Special Test. Results : In this study, the patient's pain was controlled and NRS, ODI were decreased. I could identify the improvement in life quality from the positive change of SF-36 and also found out that treatment was successful from the improvement of ROM, Special test. Conclusions : Harpagophyti Radix Pharmacopuncture with Korean Medicine treatment for Bone Metastasis of Breast Cancer and Spinal Stenosis was proved to be useful to the pain relief and function recovery, but further research should take place for clear understanding of the exact amount of dosage and safety. Moreover it must be accompanied by long term follow up research.
배영현,전재윤,임수진,이종환,김해솔,김호선,송주현,염승철,김문휘,Bae, Young-Hyeon,Jeon, Jae-Yoon,Lim, Su-Jin,Lee, Chong-Hwan,Kim, Hae-Sol,Kim, Ho-Sun,Song, Ju-Hyun,Yeom, Seung-Chul,Kim, Moon-Hwi 척추신경추나의학회 2014 척추신경추나의학회지 Vol.9 No.2
Objectives : The purpose of this study is to evaluate the clinical application of Muscle Relaxation Pharmacopuncture for Fibromyalgia. Methods : We examined 2 patients with Fibromyalgia who admitted Jaseng Korean Medicine Hospital. The patients were treated by Korean Medicine treatment and Muscle Relaxation Pharmacopuncture. These cases were assessed by Numerical Rating Scale (NRS), American College of Rheumatology Preliminary Diagnostic Criteria(ACR), ROM(Range of Movement) and Special Test. Results : In this study, the patient's pain was controlled and NRS, Widespread Pain Index(WPI), Symptom Severity(SS) scale score were decreased. ROM and Special Test were also improved. Conclusions : Muscle Relaxation Pharmacopuncture with Korean Medicine treatment for Fibromyalgia was proved to be helpful to the pain relief and function recovery, but more studies are needed to investigate the effectiveness of Muscle Relaxation Pharmacopuncture.
임상실습을 경험한 물리치료 전공 학생의 전문직업성 연구
유재호,배영현,노수현,김윤태,홍성화,Yu, Jae-Ho,Bae, Young-Hyeon,Noh, Su-Hyun,Kim, Yun-Tae,Hong, Sung-Hwa 대한물리치료과학회 2021 대한물리치료과학회지 Vol.28 No.2
Purpose: The purpose of this study is to find the perceived level of professionalism of physical therapy student who experienced clinical practice. Design: Cross-sectional study. Methods: The subjects of the study were conducted for 3 months from March to June, 2017, and randomly selected physical therapy student who experienced clinical practice in Chungnam-Do. The 138 students in cross-sectional survey were done via Korean of Professionalism In Physical Therapy: Core Values (PPTCV). The questionnaire data analyzed by SPSS 19.0 version. Results: The mean scores of PPTCV were accountability 41.34±0.83, altruism: 19.67+0.90, compassion/caring 43.82±0.81, excellence 45.57±0.80, integrity 43.69±6.16, professional duty 28.67±4.70, and social responsibility 45.84±7.64. Conclusion: Physical therapy students who experienced clinical practice had overall high scores.
물리치료 기술 개발 방향 정립을 위한 세부 연구 분야 우선순위 도출
김형근,하현근,배영현,Kim, Hyeong Geun,Ha, Hyun Geun,Bae, Young-Hyeon 대한물리치료과학회 2022 대한물리치료과학회지 Vol.29 No.1
Background: The purpose of this study was to suggest agenda priorities for research and development with physical therapy technology. Design: Cross-sectional study. Methods: A survey was consecutively done to 62 experts working in physical therapy research areas to investigate the priority of the categories. Paired T-tests and Importance-Performance Analysis using SPSS 21.0 package were conducted to find the differences between importance and satisfaction of the categories and the order of priority. Results: In results, it was developed that the research and development with physical therapy technology were divided with 18 categories. And the importance were significantly higher than satisfaction in 18 categories. Specifically, categories about assistive technology and robot rehabilitation were found to be on the high importance and lower performance quadrant. Conclusion: In sum, this study was meaningful in finding usage categories of research and development with physical therapy technology and investigating Importance-Performance differences for deriving research and development with physical therapy technology.
요추 추간판 탈출증과 대퇴 비구 충돌 증후군 진단 받은 환자를 대상으로 시행한 고관절 부위 봉약침 치료 및 한방 보존적 치료 치험 1례
김해솔,이종환,전재윤,임수진,배영현,김호선,송주현,김문휘,조창영,정유화,Kim, Hae-Sol,Lee, Chong-Hwan,Jeon, Jae-Yoon,Lim, Su-Jin,Bae, Young-Hyeon,Kim, Ho-Sun,Song, Ju-Hyun,Kim, Moon-Hwi,Cho, Changyoung,Jung, You-Hwa 척추신경추나의학회 2014 척추신경추나의학회지 Vol.9 No.2
Objectives : The Purpose of this study is to investigate the clinical application of Bee venom pharmacopuncture and conservative treatment for lumbar HIVD(Herniated Intervertebral Disc) and Femoroacetabular Impingement. Methods : Patient is hospitalized at Dept. of Oriental Internal Medicine, Jaseng Oriental Medicine Hospital, diagnosed as lumbar HIVD(Herniated Intervertebral Disc) and Femoroacetabular Impingement and treated by Bee venom pharmacopuncture, herbal medicine, acupuncture and moxibustion. This study was measured by NRS(Numerical Rating Scale), ODI and EQ-5D. Results : After Bee venom pharmacopuncture and conservative oriental medical treatment, the patient's pain was controlled and NRS score was decreased. ODI and EQ-5D also were improved. Conclusions : As seen in this one case, Oriental conservative treatment and Bee venom pharmacopuncture have a positive effect to control pain with lumbar HIVD(Herniated Intervertebral Disc) and Femoroacetabular Impingement.