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순차적 정보융합을 이용한 비동기 다중 레이더 환경에서의 바이어스 추정기법
김형원,박효달,송택렬,Kim, Hyoung Won,Park, Hyo Dal,Song, Taek Lyul 한국군사과학기술학회 2012 한국군사과학기술학회지 Vol.15 No.5
This paper presents a sensor bias estimation method with serial fusion for asynchronous multisensory systems. Serial fusion processes the sensor measurements in a first-come-first-serve basis and it plays an essential role in asynchronous fusion in practice. The proposed algorithm generates the bias measurements using fusion estimates and sensor measurements for bias estimation, and compensates the sensor biases in fusion tracks. A simulation study indicates that the proposed algorithm has the superior performance in bias estimation and accurate tracking.
비동기 다중레이더 환경에서 의사 측정치를 이용한 바이어스 추정기법
김형원,김도형,박효달,송택렬,Kim, Hyoung-Won,Kim, Do-Hyeung,Park, Hyo-Dal,Song, Taek-Lyul 한국군사과학기술학회 2011 한국군사과학기술학회지 Vol.14 No.6
In this paper, a sensor bias estimation method with pseudo measurement for asynchronous multisensor systems is proposed. The proposed bias estimation method separates the local filter which estimates the target state with biased measurements into two parts, one is bias part, the other is target state part. By using these two parts, the algorithm generates the pseudo bias measurement for estimating bias, and then eliminates bias of local track through bias compensation. Finally, the proposed algorithm is evaluated by comparing with the existing EXX method.
김형원 ( Hyoung Won Kim ),양수영 ( Su Young Yang ),김민희 ( Min Hee Kim ),남궁욱 ( Uk Namgung ),박양춘 ( Yang Chun Park ) 대전대학교 한의학연구소 2011 혜화의학회지 Vol.19 No.2
Objectives: This study analyzed the contents of the research papers of Maekmundong-tang (MMDT). This study was conducted to help development of new clinical application and clinical studies for treating COPD with Oriental medicine. Materials and Methods: We inspected 26 theses and scrutinized their classification, objective diseases, study design, participants, methodological quality of clinical trial. Results: The following results were obtained in this study. 1. The studies of MMDT started in 1989 and have continuously increased, but it decreased recently. 2. The studies were mainly focused on experimental models rather than clinical studies. The topics of studies were mainly relaxation of airway contraction and anti-asthmatic effect. 3. MMDT was showed to have effects on chronic cough and asthma in these papers. Conclusion: MMDT is being used in respiratory disease. However, mechanism study should be conducted at experimental study and more clinical studies on the efficacy of MMDT for chronic respiratory disease are needed.
김형원 ( Hyeong Won Kim ),한경희 ( Kyoung Hee Han ),차동수 ( Dong Soo Cha ),김태형 ( Tae Hyoung Kim ),권민수 ( Min Soo Kwon ),박은영 ( Eun Young Park ) 대한산부인과학회 2007 Obstetrics & Gynecology Science Vol.50 No.12
Radiofrequency myolysis is a method for preserving uterus and fecundity, and due to its more non-invasive and simpler operation, it is now frequently carried out to cure the uterine myomas. However, not long time has passed since this operation started, and little studies were conducted on its complications and side effects. Therefore, since the authors experienced the formation of an abscess in uterus after radiofrequency myolysis of uterine myoma, we hereby report the case.
생물화공 : 난백으로부터 리소짐 분리를 위한 이온교환 크로마토그래피와 침전법의 비교
김형원 ( Hyoung Won Kim ),김인호 ( In Ho Kim ) 한국화학공학회 2003 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.41 No.3
Ion exchange chromatography(IEC) with gradient and precipitation were used to purify lysozyme from egg white. In IEC, elution of lysozyme from 0 M to l M NaCl gradient was performed and SDS-PAGE showed that lysozyme was selectively purified from other egg white proteins. In addition to IEC, egg white proteins were salted out with ammonium sulfate to compare the effectiveness of precipitation method with IEC. The concentrations of ammonium sulfate were varied from 25% to 85%. Precipitation was not able to purify solely lysoayme from egg white. Recovery of lysozyme in the precipitation was improved by changing precipitation temperature and aging time.
슬관절내 수지상 지방종의 관절경적 치료 - 1례 보고 -
민병현,원예연,김형원,이기범,강신영 ( Byoung Hyun Min,Ye Yeun Won,Hyoung Won Kim,Kyi Beom Lee,Sin Young Kang ) 대한슬관절학회 1998 대한슬관절학회지 Vol.10 No.1
Lipoma arborescens is a rare intra-articular lesion consisting of a villous lipomatous proliferation of the synovial lining. We experienced one case of lipoma arborescens of knee which was associated with avascular necrosis of femoral head. This case report draws the attention to history, physical findings, MR images, pathologic findings and arthroscopic appearance of this rare lesion. Arthro;copically, the lesion appears as a synovial lesion with numerous fatty-appearing globules and villous projections. Although the etiology is unknown, lipoma arborescens has been described in association with osteoarthritis, rheumatoid arthritis and diabetes mellitus. MR imaging is diagnostic choice to differentiate the lesion from rheumatoid arthritis, pigmented villonodular synovitis and synovial chondromatosis in those patients who present with chronic, swollen and painfui joint. Arthroscopic removal was effective in this case and we think that treatment choice of this lesion is arthroscopic removal.