http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
New Synthetic Method for Nucleic Acids - Small Molecule Conjugation
Kang,Hyunmin 용인대학교 자연과학연구소 1996 自然科學硏究所論文誌 Vol.1 No.1
2' and 3' alcohol groups on the pentose ring of an adenosine have been oxidized to dialdehydes by sodium periodate. The dialdehyde form of adenosine has been conjugated to an aminoalkyl group of a xanthone by sodium cyanoborohydride reduction. This newly developed conjugation method yielded adenosine-xanthone conjugate in 74%. The conjugation utilizes simple oxidation and reducution reactions and could be used in the preparation of nucleic acids-small molecule conjugates when mild reaction condition is required.
Reaction Pathway of DNA Alkylation by a Dimethylanthraquinone-Oligonucleotide Conjugate
Kang, Hyunmin 용인대학교 자연과학연구소 1997 自然科學硏究所論文誌 Vol.2 No.2
The reaction pathway for the target DNA alkylation by a conjugate of 1,4-dimethylanthraquinone and oligonucleotide was investigated by a model system, oxygen dependence of the target alkylation and quenching studies (nucleophile, free bases and hydroxyl radical quencher). The model reaction supports anthraquinone methide formation and radical recombination among the possible reaction pathways (radical recombination, anthraquinone methide formation and cycloaddition). The oxygen dependence and nucleophile quenching experiments support anthraquinone methide formation for the target DNA alkylation. The hydroxylated product in the model system together with the lack of quenching of the free bases suggest that the reactive anthraquinone moiety is kept in close proximity to the target in a real DNA reaction system possibly by a hydrophobic noncovalent interaction.
Kang, Hyunmin,Lim, Chungsan,Kwon, Ki-Rok,Lee, Kwangho KOREAN PHARMACOPUNCTURE INSTITUTE 2014 Journal of pharmacopuncture Vol.17 No.2
Objectives: This study was performed to analyze a 13-week repeated dose toxicity test of Sweet Bee Venom (SBV) extracted from bee venom and administered in Sprague-Dawley (SD) rats. Methods: Male and female 5-week-old SD rats were treated once daily with SBV (high-dosage group: 0.28 mg/kg; medium-dosage group: 0.14 mg/kg; or low-dosage group: 0.07 mg/kg) for 13 weeks. Normal saline was administered to the control group in a similar manner (0.2 mL/kg). We conducted clinical observations, body weight measurements, ophthalmic examinations, urinalyses, hematology and biochemistry tests, and histological observations using hematoxylin and eosin (H&E) staining to identify any abnormalities caused by the SBV treatment. Results: During this study, no mortality was observed in any of the experimental groups. Hyperemia and a movement disorder were observed around the area of in all groups that received SBV treatment, with a higher occurrence in rats treated with a higher dosage. Male rats receiving in the high-dosage group showed a significant decrease in weight during the treatment period. Compared to the control group, no significant changes in the ophthalmic parameters, the urine analyses, the complete blood cell count (CBC), and the biochemistry in the groups treated with SBV. Compared to the control group, some changes in organ weights were observed in the medium-and the high-dosage groups, but the low-dosage group showed no significant changes. Histological examination of thigh muscle indicated cell infiltration, inflammation, degeneration, and necrosis of muscle fiber, as well as fibrosis, in both the medium- and the high-dosage groups. Fatty liver change was observed in the periportal area of rats receiving medium and high dosages of SBV. No other organ abnormalities were observed. Conclusion: Our findings suggest that the No Observed Adverse Effect Level (NOAEL) of SBV is approximately 0.07 mg/kg in male and female SD rats.
Kang, Hyunmin,Lim, Chungsan,Lee, Seungbae,Kim, Byoungwoo,Kwon, Kirok,Lee, Kwangho KOREAN PHARMACOPUNCTURE INSTITUTE 2014 Journal of pharmacopuncture Vol.17 No.2
Objectives: This study was performed to check for reversibility in the changes induced by a 13-week, repeated, dose toxicity test of Sweet Bee Venom (SBV) in Sprague-Dawley (SD) rats. Methods: Fifteen male and 15 female SD rats were treated with 0.28 mg/kg of SBV (high-dosage group) and the same numbers of male and female SD rats were treated with 0.2 mL/kg of normal saline (control group) for 13 weeks. We selected five male and five female SD rats from the high-dosage group and the same numbers of male and female SD rats from the control group, and we observed these rats for four weeks. We conducted body-weight measurements, ophthalmic examinations, urinalyses and hematology, biochemistry, histology tests. Results: (1) Hyperemia and movement disorder were observed in the 13-week, repeated, dose toxicity test, but these symptoms were not observed during the recovery period. (2) The rats in the high-dose group showed no significant changes in weight compared to the control group. (3) No significant differences in the ophthalmic parameters, urine analyses, complete blood cell counts (CBCs), and biochemistry were observed among the recovery groups. (4) No changes in organ weights were observed during the recovery period. (5) Histological examination of the thigh muscle indicated cell infiltration, inflammation, degeneration, necrosis of muscle fiber, and fibrosis during the treatment period, but these changes were not observed during the recovery period. The fatty liver change that was observed during the toxicity test was not observed during the recovery period. No other organ abnormalities were observed. Conclusion: The changes that occurred during the 13-week, repeated, dose toxicity test are reversible, and SBV can be safely used as a treatment modality.
강현민 ( Hyunmin Kang ),박용문 ( Yongmun Park ),서용덕 ( Yongduek Seo ) 한국정보처리학회 2022 한국정보처리학회 학술대회논문집 Vol.29 No.2
In this paper, we propose a method of obtaining high density geometric information using multi-view structured light. Reconstruction error due to the difference in resolution between the projector and the camera occurs when reconstruction a 3D shape from a structured light system to a single projector. This shows that the error in the point cloud in 3D is also the same when reconstruction the shape of the object. So we propose a high density method using multiple projectors to solve such a reconstruction error.
정서 공감도가 디스플레이 내 정서의 시간 지각에 미치는 영향
강현민(Hyunmin Kang),정유진(Yujin Jung),한광희(Kwanghee Han) 한국HCI학회 2019 한국HCI학회 학술대회 Vol.2019 No.2
본 연구에서는 개인이 가진 정서공감의 수준이 디스플레이에 제시되는 타인의 얼굴 표정에 대한 시간 지각에서의 차이를 비교하고자 하였다. 과제는 시간 양분 과제를 사용하여 시간왜곡의 정도를 측정하였으며 주요 결과는 다음과 같다. 첫째, 선행연구의 결과와 유사한 시간 왜곡 현상이 본 실험에서는 드러났으며 둘째, 정서 공감도 집단(고,저) 에 따라 특정 정서에서 시간왜곡의 폭이 커지는 현상이 발견되었다.
강현민(Hyunmin Kang),김동현(Donghyun Kim),서정렬(Jungryul Seo),이용우(Yongwoo Yi),박수경(Sukyung Park) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5
Various applications of exoskeleton system are reported in the area of military, healthcare, and industries. More the user gets help from exoskeleton system, more power is consumed. To resolve this design conflict, we suggest an energy efficient exoskeleton system which compensates muscle fatigue in isotonic and isometric contraction condition. Fatigue compensated exoskeleton significantly reduced muscle fatigue while consumed less operation power.
상지부 착용 외골격시스템의 근력보상 정도에 따른 근피로도 변화에 대한 연구
강현민(Hyunmin Kang),박수경(Sukyung Park) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.11
Various applications of exoskeleton system are reported in the area of military, healthcare, and industries. More the user gets help from exoskeleton system, more power is consumed. To resolve this design conflict, we suggest an energy efficient exoskeleton system which compensates muscle fatigue in isotonic and isometric contraction conditions. Fatigue compensated exoskeleton significantly reduced muscle fatigue while consumed less operation power. In addition, the level of fatigue compensation can be managed by motor control using various input profile. It can make user customized exoskeleton system.
강현민(HyunMin Kang),조태훈(Tai-Hoon Cho) 한국지능시스템학회 2010 한국지능시스템학회 학술발표 논문집 Vol.20 No.2
가상 메이크업을 하기 위한 과정은 사진을 입력 받아 화장을 하기 위한 얼굴영역 추출부분과 추출한 영역에서 각각의 메이크업 부분을 기존의 피부와 잘 어울리게 화장하는 과정으로 나눌 수 있다. 얼굴 영역 추출은 ASM을 사용하는데 ASM의 경우 정확도는 높지만 많은 연산량이 필요하기 때문에 안드로이드 폰에서 연산을 하기에는 오랜 시간이 걸린다. 추출된 영역을 가지고 화장을 할 때도 단순히 화장품 색을 입히면 어색한 화장이 된다. 본 논문은 이러한 시간을 단축하기 위해 웹서비스를 이용하여 사진을 서버로 전송하고 서비스에서 ASM연산을 한 결과를 안드로이드 폰에서 받아 얼굴영역을 추출함으로써 시간을 단축시킨다. 그리고 자연스러운 화장이 되도록 사진의 피부 결을 이용하여 화장을 함으로써 자연스러운 화장이 되도록 한다.