http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
이진 웨이브렛 변환을 이용한 신경회로망의 필기체 문자 인식
이정문,유경산 江原大學校 産業技術硏究所 1997 産業技術硏究 Vol.17 No.-
In this paper, we propose a new neural pattern recognition from wavelet transform. We first analysis in BFT(Binary Field Transform) in character image. The proposed neural network and wavelet transform is able to improve learning time and scaling. The ability and effectiveness of identifying image using the proposed wavelet transform will be demonstrated by computer simulation.
정도영,이상호,서진우,오홍석,최경호 三陟大學校 1997 論文集 Vol.30 No.1
The switched reluctance motor(SRM) has a simple rotor construction with no windings. It also has simple concentrated windings on the stator. Thus, it is expected to be a lower cost machine to manufacture than the squirrel cage induction motor. This paper presents an advanced rotor structure type, well-round rotor type in SRM. To design the improved SRM we have used FEM and studied and compared with each other. The static torque, instantaneous torque and average torque are more improved than that of typical rotor type which has been a lot of used for SRM.
조성산,이정현 弘益大學校 科學技術硏究所 1998 科學技術硏究論文集 Vol.9 No.1
Stress around the edge of penny-shaped lateral crack in the residual stress fields in elastic perfectly-plastic half-spaces indented by a rigid cone are analyzed using finite element technique. The stresses are characterized and interpreted to investigate the crack growth behavior with the aid of linear elastic fracture mechanics. The influence of material properties on the crack growth behavior is also examined. Continuing growth of the crack after removal of indentation load is explained based on the variation of crack growth driving force with crack size. Furthermore, it is demonstrated that the change in the crack propagation direction with the growth is due to the change in the crack growth mechanism.
조성산,이정현 弘益大學校 科學技術硏究所 1997 科學技術硏究論文集 Vol.8 No.-
Subsurface stresses of workpiece indented by a rotating abrasive in lapping processes are analyzed using two dimensional finite element technique. The workpiece is assumed as an elastoplastic half-space, the abrasive as a rigid rectangular bar, and the lap as a rigid half-space. The stresses in the case of indentation is also analyzed to examine the effects of tangential traction. It is demonstrated that an approximately circular plastically-deformed region is evolved below the contact point and that a local maximum of tensile principal stress occurs at the intersection between the boundary of plastically-deformed region and the extension of diagonal line of abrasive. Moreover, the local maximum value occurring in a loading period is greater than that in the residual stresses, implying that subsurface cracks can be nucleated in the loading period.
권오길,이준상,박갑만 江原大學校 附設 環境硏究所 1989 環境硏究 Vol.6 No.-
의암호에 서식하는 재철(Corbicula fluminea)을 실험재로로 하여 생식세포형성, hermaphrodite에 의한 성비의 계정성 그리고 이에 따른 반새의 변화와 정확한 산란시기를 밝히고자 조직학적 방법에 의한 견구 조사를 실시하였다. 총 118개의 개체중 female 32개체(27.1%), female-hermaphrodite 75개체(63.5%)hermaphrodite 32개체(2.5%), male-hermaphrodite 7개체(5.9%), male 1개체(0.4%)로 전체적으로 female의 경향이 높았다. 산란은 2월과 3월에 난을 방출하는 난생의 형태이고 7월이후 11월까지 glochidia를 방출하는 난태생의 형태를 나타내었다. 外半?(outer-demibranch)가 보육낭으로 이용될 수도 있으나 內半?(inner-demibranch)가 주로 보육나으로 작용하였다. 수관 분리는 주로 inner-demibranch에서 나타났고, 산란시기에는 많은 개체가 수관이 분리되어 있었다. Corbicula fluminaea, one of two species in the family Corbiculidae living in the Lake Uiam was used as an experimental material. This research was done in order to deon in order to identify and describe the visceral sex. the demibranch morthology, and the seasonal gonad activity. The sexuality of C. fluminea was male, male-hermaphrodite (with a preponderance of testicular tissue over ovarian tissue), hermaphrodite (with approximately equal amount of male and female ponadal tissue), female-hermaphrodite (with a preponderance of the ovarian tissue), and female. The non-marsupial demibranch (namely, outer 2 in females and female-hermaphrodite, two in males and males and male-hermaphrodites) was divided by the secondary sept that in males and male-hermaphrodites) was divided by the secondary septa that produced secondary watertubes, resulting in triparitite organization. But, the outerdemibranch of all kinds has exhibited feebly the triparitite organization. In this species larvae were produced over two extended time periods, one in spring(oviparity) and one in fall (dvoviviparity).
Provable Secure Brand-new Multi-auction Mechanism with Dynamic Identity
( Jung-san Lee ),( Kuo-jui Wei ),( Ying-chin Chen ),( Yun-hsiang Sun ) 한국인터넷정보학회 2016 KSII Transactions on Internet and Information Syst Vol.10 No.12
Different from traditional auctions, electronic auctions provide a platform to allow bidders and auctioneers merchandise to each other over network anytime and anywhere. Auctioneers can publish information of goods, and bidders can choose the interested targets through this bidding platform. To ensure the fairness and security of electronic auctions, Li et al. have proposed a practical electronic auction scheme which can confirm the requirement of strong anonymity, bidding privacy, and secret bidding price. However, we have found out that Li et al.`s scheme may lurk the risk of the denial-of-service attack during the bidding phase in a sealed-bid auction. Thus, we propose a brand-new sealed-bid auction mechanism, in which the essentials of e-auction can be firmly preserved. In particular, each bidder only needs to register at the center once and then can join to multiple plays launched by different auc-tioneers. Moreover, the correctness of mutual authentication is confirmed according to the BAN logic model.
Rapid Predicting Fatty Acids Contents of Soybean by Near-infrared Spectroscopy: Calibration Method
( Jung Won Lee ),( Jung Bong Kim ),( Sok Young Lee ),( Chang Young Kim ),( Jung Ro Lee ),( Yu Mi Choi ),( Jae Gyun Gwag ),( Tae San Kim ) 한국응용생명화학회 2008 Journal of Applied Biological Chemistry (J. Appl. Vol.51 No.5
Provable Secure Brand-new Multi-auction Mechanism with Dynamic Identity
Lee, Jung-San,Wei, Kuo-Jui,Chen, Ying-Chin,Sun, Yun-Hsiang Korean Society for Internet Information 2016 KSII Transactions on Internet and Information Syst Vol.10 No.12
Different from traditional auctions, electronic auctions provide a platform to allow bidders and auctioneers merchandise to each other over network anytime and anywhere. Auctioneers can publish information of goods, and bidders can choose the interested targets through this bidding platform. To ensure the fairness and security of electronic auctions, Li et al. have proposed a practical electronic auction scheme which can confirm the requirement of strong anonymity, bidding privacy, and secret bidding price. However, we have found out that Li et al.'s scheme may lurk the risk of the denial-of-service attack during the bidding phase in a sealed-bid auction. Thus, we propose a brand-new sealed-bid auction mechanism, in which the essentials of e-auction can be firmly preserved. In particular, each bidder only needs to register at the center once and then can join to multiple plays launched by different auctioneers. Moreover, the correctness of mutual authentication is confirmed according to the BAN logic model.
Lee, Suk-Hee,Koo, Ja-Pung,Wang, Jung-San,Kim, Hong-Rae,Bae, Young-Sook,Yim, Jae-Gil,Lee, Jung-Sook,Kim, Nyeon-Jun,Chung, Nak-Soo International Academy of Physical Therapy Research 2010 Journal of International Academy of Physical Ther Vol.1 No.1
The purpose of this study was to investigate perceived health status, activities of daily living and depression of the elderly in nursing facilities and to identify correlations among them. The collected data is to improve healthy life for the aged people in communities. This study was performed by using of questionnaire which was consisted of perceived health status, activity of daily living(ADL) and depression. The survey was conducted by 180 aged people at nursing homes. The results of perceived health status show that 64.9% of elderly feel very bad or bad, 61.6% of elderly have a degree of independent level of activity of daily living(ADL) and 48.6% of elderly have a degree of depression. There were statically revealed meaningful correlation between ability of activity of daily living(ADL) and perceived health status, ability of activity of daily living(ADL) and depression. This study about connection among perceived health status, activity of daily living(ADL) and depression is necessary for number of the affiliation function of elderly at nursing homes and development of intervention programs concerned about depression are necessary.