• 제목/요약/키워드: SPIT

검색결과 52건 처리시간 0.021초

추석기간 중의 식품섭취 자제행동과 신체계측치와의 관련성 (Anthropomertic Correlates of Restrained Eating in Female College Students During Korean Thanksgiving Holidays)

  • 김석영
    • Journal of Nutrition and Health
    • /
    • 제32권6호
    • /
    • pp.746-755
    • /
    • 1999
  • This study was to investigate the eating behavior and the anthropometric and biochemical correlates of dietary restraint in femals university from 14 to 20 September 1997, including a Korean Thanksgiving day (16 September). The daily energy intakes and macronutrient compositions were analyzed by means of 7-day dietary records. The most important variable correlated with dietary restraint was hip girth. When dividing the subjects into restrained and unrestrained groups by the basis of a median spit on the hip girth, the restrained group had a about 400kcal less than the unrestrained group in 16 September. Differences were also found with respect to macronutrient composition. The restrained group showed a significant lower fat portion of the energy intake in 16 September and a higher fat portion in 20 September than the unrestrained group. It means that the restrained eaters reduced their fat intake in the Korean Thanksgiving day. However, they can't keep the cognitive control in the 4-day after the holiday.

  • PDF

디젤 엔진의 Crankshaft Web 형상에 따른 굽힘 및 비틀림 특성과 중량 최적화에 관한 연구 (A Study on Bending and Torsion Characteristics and Weight Optimization by Web Shape of Crankshaft for Diesel Engine)

  • 김장수;이치우
    • 한국산업융합학회 논문집
    • /
    • 제14권2호
    • /
    • pp.67-72
    • /
    • 2011
  • Recently, it is possible for small sized and high speed diesel engines by development of commonrail system. And in order to increase the engine performance, the cylinder firing pressure is a tendency which increases. On the other side, the weight of engine becomes lightly in spit of high performance diesel engine. Therefore, the weight optimization for engine components is very important point on the design process. Also, the weight optimization must necessarily be considered the robust design against a fatigue failure. This paper focuses on the weight optimization of crankshaft according to web shape at the light duty diesel engine, and torsion characteristics of crankshaft is considered with 1D and 3D analysis tools.

위성체 자세결정을 위한 별 패턴인식의 비교연구

  • 이병석;박은서;박상영;최규홍
    • 한국우주과학회:학술대회논문집(한국우주과학회보)
    • /
    • 한국우주과학회 2003년도 한국우주과학회보 제12권2호
    • /
    • pp.44-44
    • /
    • 2003
  • 위성의 자세를 결정하기 위해서는 위성체에 탑재된 각종 센서들을 사용된다. 이러한 센서 중에서 고정밀도의 자세결정을 위해서는 별추적기를 사용한다. 별 추적기를 통한 위성체의 자세결정은 CCD 이미지로부터 여러 가지 별패턴인식(star pattern recognition) 방법을 통하여 CCD의 FOV(Field of View)내의 별들을 인식, 자세정보를 추출하여 이루어진다. 이러한 과정은 운용중인 위성체내에서 실시간으로 처리되어야 하므로 빠른 처리속도, 높은 신뢰도, 그리고 위성체내에 저장되어지는 자료의 양도 가능한 적어야 한다는 제한 요소들이 있다. 이러한 별추적기의 별패턴인식 방법으로는 CCD의 FOV내에 존재하는 각 쌍의 별들의 각거리를 이용하는데, 위성체의 이전자세정보의 필요 여부, searching phase 등에 따라서 나누어진다. 본 연구에서는 선행자료를 필요로 하지 않는 k-vector SPIT(Star-Pair Identification Technique)를 사용하여 CCD이미지와 위성체에 저장된 별 카탈로그(star catalog)와 비교한 후, 각각의 별들을 인식(identification)할 수 있는 알고리즘을 구현하였다. 또한 선행자세자료를 필요로 하는 패턴인식방법을 구현하여 이들을 비교하였다.

  • PDF

1930-40년대 부산·경상지역의 근대 역사문화유산에 사용된 강재의 재료적 특성 (Material Properties of Structural Steel used in Modern Historical Heritage of Busan and Gyeongsang in the 1930-1940s)

  • 안재철;송종목
    • 건축역사연구
    • /
    • 제23권6호
    • /
    • pp.39-46
    • /
    • 2014
  • In this study, we evaluated the chemical and physical properties of structural steel, which is the most basic material for steel structures and reinforcement concrete structures in modern period. We theorized the technical data for the research of technical history of modern heritage structures by analyzing the product system and its quality control of structural steel used in modern historical heritages. The results of this study are as follow; first, the rounded bars were used in most of modern heritage structures. But in the case of Waegwan railroad bridge, the deformed bars were used in spit of not using in Japan after the great earthquake of Kantou. Second, the structural steel was good in terms of quality control, but It has brittle properties because it was not manufactured by heat treatment process.

Fence 전극을 가진 ac PDP의 방전전압특성에 미치는 돌기 전극의 영향 (Effect of Hump Electrode on the Discharge Voltage of ac PDP with Fence Electrode)

  • 동은주;옥정우;윤초롬;이해준;이호준;박정후
    • 전기학회논문지
    • /
    • 제57권2호
    • /
    • pp.261-267
    • /
    • 2008
  • One of the most important issues in fence-type PDP is low luminance and luminous efficiency. To improve luminance and luminous efficiency, new sustain electrode structure which contains long discharge gap is necessary. However, it causes rise of firing voltage. In this paper, a new fence electrode structure is proposed in order to solve these problems. To drop the firing voltage, tow hump shaped electrodes is added on the main discharge electrode, and distance between two humps is controlled. The experimental results show that the test panel with the narrow horizontal gap(40um) between two humps shows low firing voltage by 17V compared with 80um gap in spit of similar luminance and luminous efficiency.

강원도 동해안(송지호) 해안퇴적층의 제4기 후기 층서와 중광물 (Late Quaternary Stratigraphy and the Heavy Minerals from Deep Cored Sediments along the Coastal Deposits, Songji Lagoon, Eastern Coast, Korea)

  • 박용안;박영후
    • 한국제4기학회지
    • /
    • 제15권2호
    • /
    • pp.111-117
    • /
    • 2001
  • 강원도 동해안 송지호(석호: lagoon)의 해안 퇴적층(석호입구 사립 퇴적층)에서 실시된 심부 시추 퇴적층에 대한 퇴적학적인 제4기 후기 층서설정과 환경연구 결과가 현세 해수면 상승곡선이 서로 대비되어 해석되었다. 중광물 함량의 변화가 퇴적층서 단위별로 차이를 나타내는 사실은 육성 퇴적 환경에서 해안 해빈 환경으로의 진화과정을 뒷바침한다.

  • PDF

Development of Atmospheric Pressure Plasma Sources in KRISS

  • Tran, T.H.;You, S.J.;Kim, J.H.;Seong, D.J.;Jeong, J.R.
    • 한국진공학회:학술대회논문집
    • /
    • 한국진공학회 2011년도 제41회 하계 정기 학술대회 초록집
    • /
    • pp.151-151
    • /
    • 2011
  • Atmospheric-pressure plasmas are used in a variety of materials processes. The lifetime of most atmospheric-pressure plasma sources is limits by electrode erosion due to energetic ion bombardment. These drawbacks were solved recently by several microplasma sources based on microstrip structure, which are more efficient and less prone to perturbations than other microplasma sources. In this work, we propose microplasma sources based on strip line and microstrip line, developed for the generation of microplasmas even in atmospheric air and analyzes these systems with microwave field simulation via comparative study with two previous microwave sources (Microstrip Spit Ring Resonator (MSRR), Microstrip Structure Source (MSS)).

  • PDF

Qualitative Study on Body Image and Appearance Behaviors in the Diet Center

  • Lee, Seung-Hee
    • 패션비즈니스
    • /
    • 제8권6호
    • /
    • pp.113-122
    • /
    • 2004
  • The purpose of this study was to examine and understand body image, appearance behaviors, and eating disturbances among females in the Diet Center. Subjects for this research were 40 females enrolled at the Diet Center in Seoul. They were interviewed for this study using an interview schedule at September in 2004. As a result, most of the subjects (87%) were dissatisfied with their bodies, especially their lower body such as hip, thighs, legs, stomach. Subjects tended to use dieting and fasting (46.3%) as the most common appearance management behaviors in relation to the body parts. Make-up (32.9%) was also used as routine appearance behaviors, while 37.5% of subjects have had cosmetic surgery on eyes, nose and liposuction. Sixty percent of subjects had participated in Diet center programs more than twice. This may mean that society pressures women to have a slim body, which then will result in more self-confidence. Subjects tend to engage in unhealthy eating behaviors, such as 'fasting', 'inducing vomit', 'using diet pills or laxatives', and 'after chewing, spit out'. Based on these results, socio-cultural body image regarding ideal beauty would be discussed.

SIP 기반의 VoIP 서비스 환경에서 스팸 방지를 위한 인증 기법 (An Authentication Schemes for Anti-spam in SIP-based VoIP Services)

  • 장유정;문형권;최재덕;원유재;조영덕;정수환
    • 한국통신학회논문지
    • /
    • 제32권8B호
    • /
    • pp.521-528
    • /
    • 2007
  • 본 논문에서는 SIP 기반의 VoIP상에서 스팸 위협에 대해 분석하고 이를 차단하기 위해 UAS에서 inbound proxy 서버를 인증할 수 있는 발신자 인증 기법을 제안하였다. 제안된 기법은 UAS로 들어오는 메시지가 inbound proxy를 통해 전송됐는지 여부를 검증하기 위해 inbound proxy 서버와 UAS 간 사전에 공유하고 있는 패스워드를 기반으로 HTTP Digest 인증을 적용하였다. 이는 SIP 표준의 큰 수정 없이 쉽게 적용이 가능하고 peer-to-peer로 발생되는 스팸을 효과적으로 차단할 수 있다. 본 논문에서는 상용 망에서 peer-to-peer로 스팸을 발송해보고 제안된 기법을 이용해 스팸이 차단되는 것을 검증하기 위해 오픈 소스를 이용해 구현해 보았다.

靈樞${\cdot}$五륭津液別에 대한 硏究 (A Research on the ORyungJinAekByeol(五륭津液別) of the Young Chu(靈樞))

  • 정종국;신영일
    • 대한한의학원전학회지
    • /
    • 제13권2호
    • /
    • pp.155-155
    • /
    • 2000
  • Body fluid(津液) is a general term for normal mucus in human body, including saliva, gastric juice, intestinal juice and articular fluid in joints as well as tear, running nose, sweat, etc.. The formation of Body fluid goes through two phases. First phase is digestion of food at stomach, and then evaporation and classification of energy at Triple warmer(三焦). More technically speaking, Body fluid is divided into the Jin(津) & the Aek(液). Aek is a very mild and water-like fluid, runs deep into the internal organs. Jin is a thick and sticky liquid, running shallow under the skin or in the joints of limbs. Major roles of body fluid over the body are to moisturize the internal organs, flesh, skin, etc., to soften the joints, to fill the bone marrow, and to balance Yin and Yang. This article deals with the role of body fluid and how to differentiate them, the liquid metabolism in the human body, and the formation and change of sweat, urine, tear, spit, bone marrow, etc.. The imbalance of Yin and Yang and disturbance of Triple warmer's evaporation lead into lumbago, leg weakness and edema is also explained here.