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고등학교 엘리트 카약 선수들의 등속성 근기능·균형성·유연성 측정 및 평가 (Assessment of Isokinetic Muscle Function, Balance and Flexibility in Elite High School Kayakers)

  • 신광택;손지훈
    • 디지털융복합연구
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    • 제16권6호
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    • pp.407-416
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    • 2018
  • 본 연구는 고등학교 엘리트 카약 선수들의 등속성 근기능, 균형성, 유연성, 신체 조성 등을 검사 및 진단하여 선수들의 경기력 향상과 부상 예방을 위한 훈련 방법론에 대한 조언을 하고자 실시되었다. 11명의 선수들을 대상으로, Biodex system IV, Biodex stabilizer system, Inbody 3.0, CNP-5403을 사용하여 근기능(peak torque, average power, work fatigue) 동적 균형 신체 성분 유연성 검사를 하였다. 선수들의 BMI 평균은 $22.57kg/m^2$, 체지방률은 10.90%, 체전굴은 16.95cm, 밸런스 점수는 좌우 각각 1.55, 1.49로 나타났다. S4, S5, S8, S10, S11은 어깨 근력과 파워 훈련이, S5, S6, S10, S11은 어깨 근지구력 훈련이 필요한 것으로 평가되었다. S5, S7, S8, S10, S11은 무릎 근력과 파워 훈련이, S1, S4, S5, S10은 무릎 근지구력 훈련이 요구되었다. S3, S10, S11은 손목 근지구력 강화 훈련이 필요했다. 추후 근기능 불균형으로 인한 경기력 저하와 잠재적 부상의 위험을 줄이기 위해선 획일화된 근력 훈련 프로그램을 지양하고, 정기적인 근기능 검사와 함께 개인별로 특화된 훈련 프로그램을 수립해야 한다.

부모간 갈등 및 조모/외조모의 심리적 지지와 학령기 아동의 안녕감 (The Relationship between Parent's Conflict, Paternal / Maternal Grandmother's Psychological Support and School-Aged Children's Well-Being)

  • 민하영
    • 가정과삶의질연구
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    • 제26권2호
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    • pp.33-41
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    • 2008
  • The purpose of this study was to investigate the relationship between parent's conflict, paternal/ maternal grandmother's psychological support and school-aged children's well-being. The subjects were 227 6th grade school-aged children in elementary school who were 128(56.4%) boys and 99(43.6%) girls. Instruments used in this research were CDI(Children's Depression Inventory), CPIC(The children's perception of interparental conflict scale), and psychological support scale. The data were analyzed by simple regression, standard multiple regression and hierarchical multiple regression(using SPSS 12.1). Major findings were as follows: (1) There was no difference in maternal grandmother's psychological support and paternal grandmother's psychological support. (2) Maternal grandmother's psychological support was more important variable affecting school-aged children's well-being than paternal grandmother's psychological support. (3) Paternal/maternal grandmother's psychological support operated as a main effect with school-aged children's well-being increasing as paternal/maternal grandmother's psychological support increased. There were not interaction effects of parent's conflict and paternal/maternal grandmother's psychological support on school-aged children's well-being. That result showed that paternal/maternal grandmother's psychological support did not moderate negative effects of parent's conflict on school-aged children's well-being.

EXTREMELY MEASURABLE SUBALGEBRAS

  • Ayyaswamy, S.K.
    • 대한수학회보
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    • 제22권1호
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    • pp.7-10
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    • 1985
  • For each a.mem.S and f.mem.m(S), denote by $l_{a}$ f(s)=f(as) for all s.mem.S. If A is a norm closed left translation invariant subalgebra of m(S) (i.e. $l_{a}$ f.mem.A whenever f.mem.A and a.mem.S) containing 1, the constant ont function on S and .phi..mem. $A^{*}$, the dual of A, then .phi. is a mean on A if .phi.(f).geq.0 for f.geq.0 and .phi.(1) = 1, .phi. is multiplicative if .phi. (fg)=.phi.(f).phi.(g) for all f, g.mem.A; .phi. is left invariant if .phi.(1sf)=.phi.(f) for all s.mem.S and f.mem.A. It is well known that the set of multiplicative means on m(S) is precisely .betha.S, the Stone-Cech compactification of S[7]. A subalgebra of m(S) is (extremely) left amenable, denoted by (ELA)LA if it is nom closed, left translation invariant containing contants and has a multiplicative left invariant mean (LIM). A semigroup S is (ELA) LA, if m(S) is (ELA)LA. A subset E.contnd.S is left thick (T. Mitchell, [4]) if for any finite subser F.contnd.S, there exists s.mem.S such that $F_{s}$ .contnd.E or equivalently, the family { $s^{-1}$ E : s.mem.S} has finite intersection property.y.

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유기 리간드 존재하에서 $FeS_{(S)}$의 중금속 제거 특성 연구 (Studies on the Heavy Metal Removal Characteristics of $FeS_(S)$ in the Presence of Organic Ligand)

  • 박상원;박병주
    • 한국환경과학회지
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    • 제8권3호
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    • pp.411-417
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    • 1999
  • The interfacial chemical behavior, lattice exchange and dissolution, of $FeS_{(S)}$ as one of the important sulfide minerals was studied. Emphases were made on the surface characterization of hydrous $FeS_{(S)}$, the lattice exchange of Cu(II) and $FeS_{(S)}$, and its effect on the dissolution of $FeS_{(S)}$, and also affect some organic ligands on that of both Cu(II) and $FeS_{(S)}$. Cu(II) which has lower sulfide solubility in water than $FeS_{(S)}$ undergoes the lattice exchange reaction when Cu(II) ion contacts $FeS_{(S)}$ in the aqueous phase. For heavy metals which have higher sulfide solubilities in water than $FeS_{(S)}$, these metal ions were adsorbed on the surface of $FeS_{(S)}$. Such a reaction was interpreted by the solid solution formation theory. Phthalic acid(a weak chelate agent) and EDTA(a strong chelate agent) were used to demonstrate the effect of organic lignads on the lattice exchange reaction between Cu(II) and $FeS_{(S)}$. The $pH_{zpc}$ of $FeS_{(S)}$ is 7 and the effect of ionic strength is not showed. It can be expected that phthalic acid has little effect on the lattice exchange reaction between Cu(II) and $FeS_{(S)}$. whereas EDTA has very decreased the removal of Cu(II) and $FeS_{(S)}$. This study shows that stability of sulfide sediments was predicted by its solubility. The pH control of the alkaline-neutralization process to treat heavy metal in wastewater treatment process did not needed. Thereby, it was regarded as an optimal process which could apply to examine a long term stability of marshland closely in the treatment of heavy metal in wastewater released from a disussed mine.

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아버지의 양육 참여행동과 아동의 친사회적 도덕판단능력 (Father's Child-Rearing Behaviors and Children's Prosocial Moral Judgement)

  • 정현희;최경순
    • 아동학회지
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    • 제13권1호
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    • pp.38-51
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    • 1992
  • The purposes of this study are to investigate (1) the father's child-rearing behavior perceived by children in relation to children's sex, family type and mother's job, (2) children's prosocial moral judgement as related to children's sex, family type, and mother's job, and (3) the effect of father's child-rearing behavior on children's prosocial moral judgement. The subjects were 432 5th-6th grade elementary school children in Pusan, For the measurement of father's child-rearing behavior, this researcher developed a father's child-rearing behavior questionnaire based on Choi's (1991) questionnaire, For the children's prosocial moral judgement. the 4 prosocial moral dilemma by Eisenberg-Berg was used, The major findings were as follows, No significant results were found in relation to father's child-rearing behavior and child's sex, family type, and mother's work status, Children's prosocial behavior was not related to any of the above variables, Significant relationships were found between father's child-rearing behavior and children's prosocial moral judgement.

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유비쿼터스 컴퓨팅에서 분산 멀티미디어 서비스를 위한 하이브리드 QoS 관리 모델 (A Hybrid QoS Management Model for Distributed Multimedia Services in Ubiquitous Computing)

  • 정창원;이건엽;주수종
    • 정보처리학회논문지A
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    • 제15A권2호
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    • pp.101-110
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    • 2008
  • 유비쿼터스 컴퓨팅은 컴퓨터 시스템의 물리적인 공간을 확장시켰으며, 보다 동적인 분산 시스템으로 이끌었다. 이러한 환경에서는 다양한 디바이스와 자원 그리고 사용자 요구사항에 대한 새로운 QoS 파라미터가 요구되고 있다. 본 논문에서는 유비쿼터스 컴퓨팅 환경에 적합한 정적 QoS 파라미터와 동적 QoS 파라미터를 정의한 새로운 하이브리드 QoS 관리 모델을 제안하였다. 제안한 시스템 구성은 분산된 형태로 종단간 QoS 제어 및 관리할 수 있도록 클라이언트 측에는 QoS 제어 관리를 위한 모듈(QoS CMM), 서버 측에 QoS 관리 모듈(QoS MM), 그리고 중앙형 QoS 제어 및 관리를 위한 자원 QoS 관리 모듈(RQoS MM)을 구성하였다. 정적 QoS 파라미터는 자원 QoS 관리 모듈에서 처리하며, 동적 QoS 파라미터에 대한 전체적인 QoS 제어는 QoS CMM에 의해 다자간 통신의 경우에 서버 측의 부담을 최소화 시킬 수 있도록 하였다. 끝으로, 그래픽 사용자 인터페이스를 통해 위치 기반 애플리케이션으로 클라이언트 단말형태인 데스크탑 PC, 노트북, PDA에 따른 멀티미디어 서비스 수행 결과 화면을 보였다.

SUMMING AND DOMINATED OPERATORS ON A CARTESIAN PRODUCT OF c0 (𝓧) SPACES

  • Badea, Gabriela;Popa, Dumitru
    • 대한수학회지
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    • 제54권3호
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    • pp.967-986
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    • 2017
  • We give the necessary condition for an operator defined on a cartesian product of $c_0(\mathcal{X})$ spaces to be summing or dominated and we show that for the multiplication operators this condition is also sufficient. By using these results, we show that ${\Pi}_s(c_0,{\ldots},c_0;c_0)$ contains a copy of $l_s(l^m_2{\mid}m{\in}\mathbb{N})$ for s > 2 or a copy of $1_s(l^m_1{\mid}{\in}\mathbb{N})$, for any $l{\leq}S$ < ${\infty}$. Also ${\Delta}_{s_1,{\ldots},s_n}(c_0,{\ldots},c_0;c_0)$ contains a copy of $l_{{\upsilon}_n(s_1,{\ldots},s_n)}$ if ${\upsilon}_n(s_1,{\ldots},s_n){\leq}2$ or a copy of $l_{{\upsilon}_n(s_1,{\ldots},s_n)}(l^m_2{\mid}m{\in}\mathbb{N})$ if 2 < ${\upsilon}_n(s_1,{\ldots},s_n)$, where ${\frac{1}{{\upsilon}_n(s_1,{\ldots},s_n})}={\frac{1}{s_1}}+{\cdots}+{\frac{1}{s_n}}$. We find also the necessary and sufficient conditions for bilinear operators induced by some method of summability to be 1-summing or 2-dominated.

아버지의 양육참여와 아동의 성역할, 정서 반응, 친사회적 행동과의 관계 (Father's Child-Rearing Behaviors, Children's Sex-Role Taking, Children's Emotional Responses and Children's Prosocial Behavior)

  • 정현희;최경순
    • 아동학회지
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    • 제16권1호
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    • pp.33-47
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    • 1995
  • The purpose of this study was to examine the relationships and predictor variable between father's child-rearing behaviors and children's sex-role taking, emotional responses and children's prosocial behavior by demographic variables and mother's work status. Subjects were 142 kindergarten children and their mothers in Busan. Three type of measurement were used in this study; (1) Two scales for father's child-rearing behaviors and children's emotional responses, (2) an interview for children's sex-role taking, and (3) amount of candies to share with classmates for children's prosocial behavior. Data were analyzed by Pearson's correlation coefficient, t-test, F-test, multiple regression, Scheffe's post hoc test using the SAS computer program. There were significant correlations between father's child-rearing behaviors and children's sex-role taking, and between father's child-rearing behaviors and children's prosocial behavior. There were significant differences in father's child-rearing behaviors, children's emotional respones, and children prosocial behavior by SES and mother's job. Father's child-rearing behaviors were the most important predictor variables influencing children's sex-role taking and children's prosocial behavior.

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양육행동에 대한 아버지신념과 아동의 자기능력지각과의 관계 (A study on the relationship with fathers' beliefs on child rearing & children's self-perceptions)

  • 송순;송희옥
    • 가정과삶의질연구
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    • 제23권1호
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    • pp.197-208
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    • 2005
  • The purpose of this study was to investigate the relationships between father's beliefs on child rearing and children's self-perceptions. The subject of this study were comprised of 167 third-grade children (ages 8-10) and their father. To summarize major findings from the analyses : First, a significant difference was found in the degree of father's beliefs about child rearing by number of child , father's education, father's job, level of life, relationship between father and child in independence and by number of child, level of life, relationship between father and child in accommodation. Second, children's self-perception was related to father's education, father's income, father's job, relationship between father and child, child's gender, father's marital satisfaction, father's job. Third, according to the multiple regression analyses for the relationships between father's beliefs about child rearing and children's self perceptions, there was a positive relationship between father's belief's on the creativity, problem-solving skill, accommodation. Father's SES status, relationship between father and child was a positive relationship children's self-perceptions. Father's beliefs on the creativity was a positive relationship children's self-perceptions but father's belief's on the accommodation was a negative relationship children's scholastic performance, behavioral conduct.

미생물의 생체광물형성작용에 따른 모르타르 내구성 검토 (The Examination of Mortar Durability by Microbial Biomineralization)

  • 김성태;천우영;김화중
    • 한국콘크리트학회:학술대회논문집
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    • 한국콘크리트학회 2009년도 춘계 학술대회 제21권1호
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    • pp.525-526
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    • 2009
  • 본 논문에서는 Sporosarcina pasteurii라는 미생물의 생체광물형성작용을 이용하여 Calcite($CaCO_3$) 석출을 유도하고, 이를 Mortar에 적용하여 요구 성능 향상을 평가하였다. Sporosarcina pasteurii를 혼입(input)한 Mortar 시험체(C3S-S.p)와 일반 Mortar 시험체(C3S-W)의 중성화 반응을 실험을 통해 비교한 결과 C3S-S.p가 C3S-W에 비해 중성화가 지연되는 것을 육안으로 확인할 수 있었다. 또한 28日간 Urea-CaCl2 수용액(Medium)에서 양생한 C3S-S.p와 C3S-W의 내구성을 실험을 통해 비교한 결과 Sporosarcina pasteurii를 혼입한 Mortar 시험체(C3S-S.p)가 일반 Mortar 시험체(C3S-W) 비해 내구성이 향상된 것으로 나타났다.

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