• Title/Summary/Keyword: HEM

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Study on Modeling Usage Pattern of Appliances in HEMS using Copula Function (Copula를 이용한 HEMS의 부하사용패턴 모델링에 관한 연구)

  • Shin, Je-Seok;Kim, Yong-Sung;Park, Hee-Jeong;Park, Young-Bae;Kim, Jin-O
    • Proceedings of the KIEE Conference
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    • 2015.07a
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    • pp.499-500
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    • 2015
  • 최근, 전력소비자 측면에서의 에너지 관리 역할이 중요해짐에 따라 다양한 에너지 관리시스템들이 개발되고 있다. 이 중, 가정용 에너지 관리시스템(Home Energy Management System, HEMS)은 전기가격 및 (신뢰도)수요반응 요청 등에 따라 가전기기의 사용을 조절함으로써, 전력사용 최적화(전력사용 비용 최소화)를 수행하게 된다. 이러한 최적화 문제 내에서 각 가전기기에 대한 사용패턴(편의성)과 관련된 제약조건이 고려되어야 한다. 본 논문에서는, 다변량 간 상관관계(의존성)을 추정하고, 이를 근거로 데이터를 샘플링 하는 데에 유용한 Copula 함수를 이용하여, 각 가전기기의 사용패턴을 모델링하고, 이를 최적화 문제 내 제약조건으로 고려할 수 있는 방법에 대한 연구를 수행하였다.

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A Study of the Characteristics and Dating of Excavated Costume of The Ma Family in JangHeung (장흥마씨 출토복식의 특징과 연대추정에 관한 연구)

  • An, Myung-Sook
    • Journal of the Korean Home Economics Association
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    • v.49 no.8
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    • pp.63-71
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    • 2011
  • The excavated costume of Jangheung Ma's included jeogoris, skirts, and pants, and a jungchimak(중치막), jangot(장옷), cheolrik(철릭), and jikryeong(직령). Most of the items were made of silk and cotton. The clothes for shrouding were plainer than those found in other regions. The method of sewing was mostly broad-stitching, but backstitch, hem tacking and decorative saddle stitching were also used. Unlined clothes were made with on old method of sewing(옛쌈솔), which was used mainly in the early period of the Chosun dynasty. Dating of the excavated costume can be determined by examining the collar of the Korean coat or jacket, the shape and form of sleeve, the size of the sub, and the form of gusset. Straight, diagonal, and broad sleeves were the most commonlyused shapes of sleeve in the middle period of $17^{th}$ century. In the latter period of Chosun, the trend moved towards a single-sub.

EEG and Psychological Responses to the Sound Characteristics of Car Horns (자동차 경적소리의 특성에 따른 뇌파 및 감성 반응)

  • 최상섭;조문재;이경화;민윤기;오애령;손진훈
    • Proceedings of the Korean Society for Emotion and Sensibility Conference
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    • 1998.11a
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    • pp.154-157
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    • 1998
  • This study investigated the psychological and physiological responses to the sound of car horns produced by different. manufacturers. Ten female college students listened to the sound of the horns while their EEG responses on 6 sites were being measured, and rated each hem on psychological scales. Their EEG and psychological responses were investigated as to whether the responses were related to the loudness, sharpness, tonality, and roughness of the horns. The results indicated that the subjects felt more 'dominated' as the loudness and sharpness increased, that the subjects felt more 'pleasant' as the sharpness increased, that the subjects felt more 'dominant' as the tonality increased, and that the subjects felt more 'aroused' as the roughness increased. The physiological results showed that the fast alpha wave in the occipital lobe decreased in the relative power as the loudness, sharpness, and tonality increased, and that the delta wave in the occipital lobe increased and the slow alpha wave in the frontal lobe decreased in the relative power as the roughness increased.

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A Study on Embroidered Figures of Miao's Traditional Costume Guizhou Province in China (중국 귀주성(貴州省) 묘족(苗族)의 복식에 나타난 문양의 특성에 관한 연구)

  • Kim, Young-Sin
    • Fashion & Textile Research Journal
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    • v.4 no.1
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    • pp.31-39
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    • 2002
  • The analysis revealed that the pattern represent the function of written language, the Miao's idea of nature as tie object of worship and exorcism, and their primitive thinking. The patterns are chiefly embroidered collars, shoulders of blouse, waist blind and hem lines of skirt. The design of patterns are animals and plants and geometrical figured. Most of patterns are dragon, fishes, birds, butterflies, which are liked by the Miao people. The patterns are highly imaginative and true to life, and are made with strong national and popular features.

-A Study on Dalmatic of Early Christian Epoch- (-초기 그리스도교 시대의 달마틱 연구-)

  • Koo In Sook
    • Journal of the Korean Society of Clothing and Textiles
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    • v.3 no.1
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    • pp.19-24
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    • 1979
  • 1. In the late second century A.D. the dalmatic, which originated in Orient, came into fashion in the Roman world. 2. It was first introduced as a vestment in public worship by Pope Sylvester I (314-335A.D.) who ordered it to be worn by the deacons. 3. The dalmatic was cut like a tunic, but wider, and with wide short sleeves. It was worn without belt, and was characteristically decorated by the clavus. Its shape, which is the form of a cross, refer to the passion of Christ. It symbolizes joy, salvation and justice. 4. In early christian epoch, colors was found in the Bible. 5. Clavus running from the shoulders to the hem in front and back represented as 'The servant of God', and symbolized the Blood of Christ. With time, clavi change from simple stripes to decorative ones.

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

  • Seo, Kwang-Suk;Park, Chang-Joo;Kim, Hyun-Jeong;Yum, Kwang-Won
    • Journal of The Korean Dental Society of Anesthesiology
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    • v.4 no.2 s.7
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    • pp.100-103
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    • 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.

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Multiplication of Displacements of the Langevin Type Piezoelectric Transducer using Various Shapes of Horns

  • Park, Tae-Gone;Kim, Myong-Ho;Park, Min-Ho
    • Transactions on Electrical and Electronic Materials
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    • v.5 no.2
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    • pp.61-65
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    • 2004
  • Bolt-tightened Langevin type vibrators using longitudinal mode of bar were designed and fabricated. In order to amplify the displacement of the tip of the vibrators, stacked ceramics were used and five different shapes of the horns were designed and jointed. Resonant frequencies and vibration characteristics of vibrators and horns were analyzed by ANSYS(finite element analysis computer program), and the displacements of tips of the horns were measured. As results, when the numbers of the stacked ceramics were increased, the displacements of the tips were increased and the driving voltages were decreased. Step l horn (BLT-St1) showed maximum displacement of 36.92 $\mu\textrm{m}$ at 36.7 ㎑ with 45 V$\sub$rms/ and 0.11 A. The displacement amplification ratio was about 5.2. But, the stress of step l horn was concentrated on intersection, where two diameters meet. To lessen the stress, step3 shaped hem is recommended.

Evaluation of Concrete Degradation Under Disposal Environment

  • Keum, D.K.;Cho, W.J.;Hahn, P.S.
    • Nuclear Engineering and Technology
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    • v.29 no.3
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    • pp.260-268
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    • 1997
  • The effects of three mechanisms, calcium depletion, sulphate and carbonate penetration, on the concrete degradation have been studied. The shrinking core model (SCM) and the HYDROGEOC. HEM (HGC) model have been applied to evaluate how fast the mechanisms proceed. The SCM is an analytical approximation model and the HGC is a numerical mass transport model coupled with chemical reaction. The SCM leads to more conservative results than the HGC, and turns out to be very useful in the viewpoint of simplicity and conservatism. During 300 years, calcium has been depleted within 10 cm from the concrete outer surface, and sulphate has penetrated less than 13.5 cm into the concrete. Carbonate has not penetrated own 7 cm into the concrete in contact with the bentonite, and, furthermore, its penetration into the concrete with the groundwater is negligible. Conclusively, the concrete is expected to maintain its integrity for at least 300 years that are regarded as institutional control period of intermediate and low-level radioactive waste repository.

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The study of force control by using feedback current and encoder signal of the servo-motor on the servo-gun system (서보 모터의 피드백 전류와 위치신호를 이용한 서보건의 가압력 제어에 관한 연구)

  • Lee, Jong-Gu;Kim, Tae-Hyeong;Lee, Se-Heon
    • Proceedings of the KWS Conference
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    • 2005.06a
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    • pp.63-65
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    • 2005
  • Because of simple principal and low cost, resistance spot welding has been used a lot for joining the sheet metal in automotive manufacturing process. Welding current, welding time, and force are the most important variables in resistance spot wording. Air guns have hem still used widely. The requirement of synchronizing between robot and weld-gun has become bigger as the field has been automated. The number of servo-gun in the field is trending upward because there're advantages as like to synchronize with robot and to control the stroke path and force by programming on servo-gun system. But no cleared force control method is suggested on servo-gun system until now. In this study, we proved the feedback current of the servo-motor can be used to an excellent force measuring sensor and the force is controlled by the feedback current. And we also detected force lowering during welding cycle on the servo-gun system and solved by compensated force control.

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A Study on Protein Adsorption-resistant Soft Contact Lens (단백질흡착을 막는 소프트콘택트렌즈에 관한 연구)

  • 조종수;정영일
    • Journal of Biomedical Engineering Research
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    • v.17 no.3
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    • pp.291-296
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    • 1996
  • Poly(ethylene glycol)(PEG) macromers terminated with diacrylate Iyoups and interpenetrating poly- mer networks(IPN) composed of poly(hydroxyethyl methacrylate)(PHEMA) or poly(hydroxyethyl methacrylate-co-hydronypropyl methacrylate-co- N-vinyl pyrrolidone ) [ P( HEM A-co- HPM A-co- NVP) ] and PEG macromer were synthesized with the aim of obtaining protein adsorption resistant soft contact lens. Polymerization of PEC macromer resulted in the formation of cross-linked gels due to the multifunctionality of macromer. Crosslinked P(HEMA) or P(HEMA-co-HPMA-co-WVP) chains were interpenetrated into the cross-linked three-dimensional networks of PEG. It was found that albumin adsorption onto the contact lens prepared by P(HEMA-co-HPMA-co-NVP) /PEG IPW decreases with an increase of molecular weight of PEG. Also, it was found that albumin adsorption onto the both contact lens decreases with an increase of concentration of PEC macromer in the IPN preparation. There are also more adequate in the bioinertnen for the contact lens by P(HEMA)/PEG IPN or P (HEMA-co-HPMA-co-NVP)/PEG IPN than that by P(HEMA) or P(HEMA-co-HPMA-co-NVP)

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