• 제목/요약/키워드: Chang Hyun-kwang

검색결과 962건 처리시간 0.032초

Few-Shot 학습을 이용한 영상 분류 (Image Classification Using Few-Shot Learning)

  • 신성윤;이현창;신광성
    • 한국컴퓨터정보학회:학술대회논문집
    • /
    • 한국컴퓨터정보학회 2021년도 제64차 하계학술대회논문집 29권2호
    • /
    • pp.681-682
    • /
    • 2021
  • 본 논문에서는 소규모 데이터 셋의 이미지 분류 작업에서 모델 과적 합 및 비 수렴을 해결하고 분류의 정확도를 높이는 데 주로 사용되는 few-shot 학습을 기반으로 한 새로운 이미지 분류 방법을 제안합니다.

  • PDF

새로운 패션 의류 이미지 분류 (New Fashion Clothing Image Classification)

  • 신성윤;이현창;신광성;김형진;이재완
    • 한국정보통신학회:학술대회논문집
    • /
    • 한국정보통신학회 2021년도 추계학술대회
    • /
    • pp.555-556
    • /
    • 2021
  • 우리는 패션 의류 이미지의 빠르고 정확한 분류를 달성하기 위해 최적화된 동적 붕괴 학습률과 개선된 모델 구조를 가진 딥 러닝 모델을 기반으로 하는 새로운 방법을 제안한다.

  • PDF

클라우드 환경의 하이브리드 차등 진화 (Hybrid Differential Evolution of Cloud Environments)

  • 신성윤;이현창;신광성
    • 한국컴퓨터정보학회:학술대회논문집
    • /
    • 한국컴퓨터정보학회 2022년도 제65차 동계학술대회논문집 30권1호
    • /
    • pp.391-392
    • /
    • 2022
  • 본 논문에서는 SparkHDE-EM이라는 생태학적 모델 알고리즘에 기반한 하이브리드 DE를 제안한다. 그리고 Spark 기반 아일랜드 모델을 도입하여 다양한 DE 변종의 병렬화를 구현한다. 또한 Monod 모델을 활용하여 자원 간의 균형을 유지하는 방법을 제안한다.

  • PDF

곽향정기산(藿香正氣散)이 가토(家兎)의 수축혈관에 마치는 영향(影響) (Effects of GwakHyangJungGiSan on the Arterial Contraction in Rabbit)

  • 선중기;김호현;남창규;구창모
    • 대한한방내과학회지
    • /
    • 제24권2호
    • /
    • pp.260-268
    • /
    • 2003
  • Object : This study was undertaken to define the mechanism of GwakHyangJungGiSan-induced relaxation in rabbit common carotid artery contracted by agonists. Method : In order to investigate the effect of GwakHyangJungGiSan on rabbit's contracted vascular ring detached from common carotid artery, vascular ring intact or damaged endothelium was used for the experiment using organ bath. To analyze the mechanism of GwakHyangJungGiSan-induced relaxation, GwakHyangJungGiSan extract was infused into contracted vascular ring which had been pretreated by pretreatment of indomethacin(IM), tetraethylammonium chloride(TEA), $N{\omega}-nitro-L-arginine(L-NNA)$. Result : GwakHyangJungGiSan blocks an inflow of $Ca^{2+}$ and relaxes vascular ring by the action of Nitric oxide from endothelium. Consequently when GwakHyangJungGiSan is prescribed, a rise in blood pressure by the resistance of peripheral vessel may be controlled to some extent and so it is anticipated that hypertension, a disorder of blood flow from the vascular contraction and vascular disease will be treated well.

  • PDF

방전면적에 따른 유전체장벽 방전에 의한 오존생성 특성 (The Characteristics of Ozone Generation for Dielectric Barrier Discharge with Discharge Area variation)

  • 이창호;박숭규;김종현;이현철;송현직;이상근;박원주;이광식
    • 한국조명전기설비학회:학술대회논문집
    • /
    • 한국조명전기설비학회 2008년도 춘계학술대회 논문집
    • /
    • pp.379-380
    • /
    • 2008
  • Recently, ozone is utilized in various fields and its needs are expanding. In this paper, glass and ceramic plate tyre ozonizer have been fabricated to investigate discharge parameter(input power, flow rate of supplied gas, electrode form, etc.) effect to discharge. And the conditions of discharge parameter have been investigated for optimum ozone generation. Ozone concentration is continuously increased with increasing input power for same discharge space, and ozone yield is also increased until maximum point after that it is saturated. Ozone concentration is inversely proportional to flow rate of supplied gas but ozone generation and ozone vield characteristics are improved.

  • PDF

치은비대를 동반한 척수성 근위축증 환자의 마취관리 -증례보고- (General Anesthesia in a Child with Possible Spinal Muscular Atrophy Combined with Gingival Hyperplasia -A Case Report -)

  • 서광석;박창주;김현정;염광원
    • 대한치과마취과학회지
    • /
    • 제4권2호
    • /
    • pp.100-103
    • /
    • 2004
  • Spinal muscular atrophies are inherited neurodegenerative disorders affecting anterior hem cells. There are various problems, especially weakness of respiratory muscle and abnormal reaction to muscle relaxants during the general anesthesia. And gingival hyperplasia can make the proper airway management difficult. Experience with anesthetic management in a patient with spinal muscular atrophy combined with gingival hyperplasia has been very rare. We report the anesthetic experience of a wheel-chair-bound child, who underwent gingivectomy under general anesthesia. The child was safely managed with fibroscopic nasotracheal intubation under sevoflurane without muscle relaxants. Also, there was no deterioration of her underlying neurologic conditions.

  • PDF

감송향이 수지상세포 성숙에 미치는 영향 (Inhibitory effects of Nardostachys Jatamansi on the maturation of dendritic cells)

  • 오광우;정지혜;정현철;조한백;김송백;최창민
    • 대한한방부인과학회지
    • /
    • 제23권3호
    • /
    • pp.14-25
    • /
    • 2010
  • Purpose: The purpose of this study is to investigate inhibitory effect on the maturation of dendritic cells from aqueous extract from Nardostachys Jatamansi(NJ). Methods: I examined the phenotypic maturation(class II MHC, CD40, CD86), expression of pro-inflammatory cytokine(TNF-$\alpha$, IL-6, IL-12) and endocytosis of FITC-Dextran in the LPS-induced bone marrow-derived dendritic cells(BMDCs) of mice. Furthermore, the Western-blot analysis reveals the mechanism of inhibitory effect. Results: 1. The NJ extract inhibited the phenotypic maturation of BMDCs in a dose-dependent manner. 2. The NJ extract inhibited the LPS induced cytokine production of BMDCs in a dose-dependent manner. 3. The NJ extract enhanced the endocytosis of Dex-FITC in LPS treated DC. 4. The NJ extract inhibited the activation of JNK and p38 phosphorylation, but not ERK phosphorylation of MAPK family and doesn't inhibit Ik-Ba degradation in LPS-stimulated BMDCs. Conclusion: These results suggest that NJ extract is able to attenuate the inflammation and maturation in BMDCs and may inhibit proliferation of T cells. In conclusion, this experiment suggests that NJ extract may be useful in hypersensitivity disease including autoimmune disease.

슬관절 전치환술 후 한방재활치료의 효과 보고 (Korean Medical Rehabilitation for Total Knee Replacement)

  • 김창곤;이진현;조동찬;문수정;박태용;고연석;송용선;이정한
    • 한방재활의학과학회지
    • /
    • 제24권1호
    • /
    • pp.111-118
    • /
    • 2014
  • The objective of this study is to report the effectiveness of Korean medical rehabilitation for total knee replacement. Three female patients who had total knee replacement were treated by Korean medical rehabilitation with protocol. We evaluated the consequences by checking numeric rating scale (NRS), Lysholm knee score, physical examination of knee joint and walking state. After Korean medical rehabilitation, we find out that the pain and function were improved. NRS, Lysholm knee score, physical examination of knee joint, walking state of patients were also improved. Korean medical rehabilitation can be effectively used for total knee replacement patients. There is a limit that this study hasn't sufficient number of cases. Further studies are needed to set up a Korean medical rehabilitation protocol.

오미백출산이 분만 후 산모의 부종에 미치는 영향 - 생화탕과 비교하여 (A Study on the Effect of Omibaekchul-san on Postpartum Edema - Comparison with Saenghwa-tang)

  • 김건희;이지현;조한백;최창민;김송백
    • 대한한방부인과학회지
    • /
    • 제28권2호
    • /
    • pp.91-108
    • /
    • 2015
  • Objectives : The aim of this study was to investigate the effect of Omibaekchul-san on postpartum edema in women hospitalized at korean medical postpartum care center in comparison with Saenghwa-tang. Methods : The body composition data was collected from 102 women, who took postpartum care in postpartum care center attached to Won-kwang University Jeonju Korean Medical Hospital, from March 2012 to July 2013. The data was analyzed by Body Composition Analyzer (Inbody 720). Specifically the data was composed of the Extra Cellular Fluid/Total Body Fluid (ECF/TBF), Total Body Water (TBW), Intra Cellular Water (ICW), Extra Cellular Water (ECW), Body Weight, Body Mass Index (BMI), Waist Hip Ratio (WHR), and the ECF/TBF of each body parts such as the upperlimb, lowerlimb and trunk. The body composition was measured twice during 2~8.5 days from childbirth and once again after 7~13.5 days from childbirth by Body Composition Analyzer. Results : The Omibaekchul-san -treated group showed a significant decrease of ECF/TBF, ECW, TBF, Body weight, BMI, ECF/TBF of each body parts and increase of WHR in comparison with the data of the Saenghwa-tang-treated group. In two groups, only the change of ICW was unsignificant. Conclusions : Statistically this study suggests that the Omibaekchul-san will help the quality of life of women who are in postpartum edema.

난임 변증진료 현황 및 난임변증설문지 개발에 관한 연구 (Analysis of Korean Traditional Medicinal Treatment Trend of Infertility and Development of Questionnaire for Infertility Treatment)

  • 최창민;김수현;송미화;황덕상;조한백;김동일
    • 대한한방부인과학회지
    • /
    • 제29권2호
    • /
    • pp.29-46
    • /
    • 2016
  • Objectives : The aim of this study is development of questionnaire for pattern identification of infertility and analysis of infertility treatment trend in korean traditional medicine. Methods : Data was collected by survey papers from 19 professors of the society of korean obstetrics and gynecology. We surveyed on pattern identifications, symptoms and prescriptions of infertility treatment, diagnosis of ovulation and pregnancy, and duration of infertility treatment. Results : By analysis of survey papers, We choose Kidney yang deficiency, Kidney yin deficiency, Blood deficiency, Liver depression, Dampness-phlegm, Dampness-heat, Static blood pattern for infertility treatment. And 41 items of questionnaire were chosen. Conclusions : We developed the questionnaire for pattern identification of infertility. And further research is necessary for improvement reliabilities and validities of the questionnaire of infertility.