• 제목/요약/키워드: Physical Growth

검색결과 2,167건 처리시간 0.028초

6H-SiC 종자 결정을 사용하여 PVT법으로 성장된 AlN 결정 연구 (Crystal structure investigation of AlN crystal grown on 6H-SiC seed by a physical vapor transport method)

  • 신희원;이동훈;김황주;박미선;장연숙;이원재;김정곤;정성민;이명현;서원선
    • 한국결정성장학회지
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    • 제26권1호
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    • pp.49-52
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    • 2016
  • 본 연구에서는 AlN 결정 성장시 중요한 공정변수 중의 하나인 성장 압력과 온도 조건에 따라 다르게 성장되는 AlN 결정상의 결과에 대하여 고찰하였다. AlN 결정 성장은 6H-SiC 종자 결정을 사용하여 PVT(Physical Vapor Transport)법을 적용하여 성장시켰다. 성장 압력과 온도에 따라 AlN 결정의 특성이 변화하였고, Raman 분석을 통해 다양한 방향을 갖는 AlN 결정이 SiC 종자 결정 위에 성장되는 것을 확인하였다.

Effects of Dietary Energy Intake Levels on Growth Performance and Body Composition of Finishing Barrows and Gilts

  • Cho, Sung Back;Kim, Dong Woon;Baek, Kyung Hoon;Lee, Byong Seak;Chung, Il Byung;Chung, Wan Tae;Choi, Nag-Jin
    • Asian-Australasian Journal of Animal Sciences
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    • 제21권10호
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    • pp.1516-1521
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    • 2008
  • This study was conducted to investigate the effects of different energy intake on physical and chemical composition in body fractions, growth performance and meat characteristics of finishing barrows and gilts. A total of twenty six crossbred (Landrace$\times$Yorkshire) consisting of 16 barrows and 13 gilts were used in this study. The animals were allocated by sex to two treatments to form a $2\times2$ factorial arrangement. The respective factors were sex (barrow and gilt) and dietary energy intake (1.8 and 3.0 times energy for maintenance). Pigs were kept in individual pens and had ad libitum access to feed and water from the start of the experiment at $52.4{\pm}1.9kg$ until they reached $109.9{\pm}4.4kg$ live weight. The growth performance, physical composition and meat characteristics of finishing pigs were not greatly affected by the sex. However, higher fat tissue weight in the carcass was observed in barrows compared with gilts (p<0.05). Higher proportions of water and protein (p<0.05), and lower lipid proportion (p<0.01) in the empty body and carcass were observed in gilts compared with barrows, while protein proportion in lean tissue was not affected by the sex. In fat tissue, only protein proportion was higher in gilts compared with barrows (p<0.05). Although, growth performance, physical and chemical compositions in body fractions were greatly affected, final body or carcass weight was partly affected by the energy intake In addition, loin characteristics such as shear force and loin eye area were partly influenced by energy intake levels. Therefore, the present results showed that growth performance and meat characteristics were not influenced but chemical body composition was greatly influenced by the sex. Growth performance, physical and chemical compositions in body fractions were greatly affected, whereas meat characteristics were partly affected by the energy intake levels.

약손요법이 미숙아의 성장 및 생리적 반응과 미숙아 어머니의 애착에 미치는 효과 - GHT[Gentle Human Touch]요법과 비교하여 - (Yakson vs. GHT Therapy Effects on Growth and Physical Response of Preterm Infants and on Maternal Attachment)

  • 임혜상
    • 대한간호학회지
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    • 제36권2호
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    • pp.255-264
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    • 2006
  • Purpose: This study is aimed to confirm the effects of Yakson therapy on the growth and physical response of preform infants, and maternal attachment to them compared with GHT therapy. Method: The design of this study is nonequivalent control group with repeated measuring by quasi experimental study. The subjects are preterm infants in 26 - 34 gestational age hospitalized in the NICU of 4 university hospitals with an experimental group of 15 and a control group of 14. Yakson therapy consists of three phases: laying a hand, caressing by hand, and laying a hand again taking 5 minutes for each phase. Result: As a result of administering Yakson therapy to preform infants; the average weight gain of the Yakson group was higher than that of the GHT group, but there is no significant difference between groups. The oxygen saturation and maternal attachment difference between the Yakson and the GHT group were not significant. Significant differences in the average daily increase of oral intake and apical pulse rate were observed between the Yakson group and GHT group. Conclusion: These data suggested that Yakson therapy may be an effective nursing intervention which can facilitate growth and physical response of preform infants.

초산모의 감각자극 프로그램이 영아의 성장 및 수유시 모아 상호작용에 미치는 효과 (Effects of Sensory Stimulation Program Conducted by Primipara on the Physical Growth and Mother-Infant Feeding Interaction for Full Term Infant)

  • 김미예;장군자;김선희
    • 대한간호학회지
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    • 제34권5호
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    • pp.820-828
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    • 2004
  • Purpose: The purpose of this study was to identify the effectiveness of sensory stimulation program administered by primipara on the physical growth and mother-infant feeding interaction for the first 6 months of infancy. Method: Data were collected from December 1, 2001 to June 30, 2003. A total of 35 mothers and their infants were assigned to a control(n=17) and an experimental(n=18) group. Mothers in the experimental group received education related to sensory stimulation program and administered to their infants twice a day for 6 months. Both groups were measured the weight, length, head circumference and chest circumference of infants at 6 weeks, 10 weeks, 14 weeks, 18 weeks, and 22 weeks and the mother-infant feeding interaction at 6 weeks, 10 weeks through the home visiting. Result: Compared to the control group, the experimental group had significantly larger increases in head circumference for intervention period. In addition to, the experimental group showed significantly higher score in mother-infant interaction than control group. Conclusion: These data suggested that sensory stimulation program administered by primipara may improve the physical growth of full term infant and mother-infant feeding interaction.

영유아의 영양평가 (Nutritional evaluation of infants and young children - About Definition, Method, necessity, Importance and Korean Medical Approach -)

  • 정다희
    • 대한융합한의학회지
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    • 제3권1호
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    • pp.15-27
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    • 2022
  • Objectives: This study was conducted to review the overall concept of nutritional evaluation of infants and young children. Methods: Literature search was done to study definition, method and importance of nutritional evaluation of infants and young children. Pubmed and Google scholarship were used in the research. Search words were 'Nutritional evaluation', 'infants' and 'young children'. Results: Nutrition evaluation is mainly used by physical measurement, clinical evaluation, dietary intake survey, and biochemical test depending on the age and disease. The treatment method for 治未病, which is a concept of korean medicine, and 健兒法 for treating the concept of weak children are considered to have very high applicability in solving various problems found through nutrition evaluation in korean medical approach. Conclusion: Infants and children are the fastest growing period of their lives, showing rapid growth in physical, and emotional development along with rapid brain growth. Therefore, inadequate nutrition during this period affects mental and physical growth and development not only during that period but also throughout life. Nutrition evaluation is divided into regular evaluation that includes children in all growing seasons and screening evaluation for problem solving, and follow-up nutritional evaluation that evaluates nutritional status in the long run. For each nutritional evaluation, evaluation is conducted by physical measurement, clinical evaluation, dietary intake survey, and biochemical test. By comprehensively interpreting them, nutritional status is determined. This study provides basic data on the proper nutrition evaluation method to identify and correct nutritional problems such as growth level, nutritional deficiency, and nutritional excess early.

인삼박(人蔘粕)의 이용(利用)에 관한 연구(硏究) -인삼박(人蔘粕)의 당화(糖化)엑기스가 소아(小兒)의 성장(成長)에 미치는 영향- (Effects of Ginseng on the Physical Growth of Children)

  • 주규현
    • 생약학회지
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    • 제6권4호
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    • pp.205-209
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    • 1975
  • Ginseng, Vitamin, and both were given to six-year-old children for three months to know effects of the drugs on the physical growth of the children. 1. Frequency of children's sickness was in order of vitamin plus ginseng, ginseng, vitamin alone and control groups. 2. Height, circumference of chest and weight of children were increased in order of vitamin plus ginseng, ginseng, vitamin, and control groups. 3. Ginseng, as compared with vitamin increased the children's growth, especially their weight and the circumference of chest.

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유아의 신체 발육 및 건강도에 대한 생활 제 조건의 관여도에 관한 연구 (A Study on the Relationship between the Raising Conditions and the Physical Growth and Health in Early Childhood)

  • 김명
    • 보건교육건강증진학회지
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    • 제12권1호
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    • pp.111-127
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    • 1995
  • This study was designed to investigate the relationships between children's physical growth and health and their raising conditions and to find out the important conditions to improve their physical growth and health. The rasing conditions were classified into three major parts; i. e., family conditions, conditions of nutrition up-taking, and conditions of rest or sleep and exercise or play. Then, the questionnaire including the items to survey these three areas of raising condition and the items to evaluate the health status were given to children' mothers or fathers and filled up by them. The data of their 4 anthropometric measures; body weight, stature, sitting height and chest girth, were also collected from their latest records of health examination. The data of health status were converted to health scores representing 6 domains of health; digestive organs, respiratory organs, auto-nerve systems, fatigue, others and health as a whole. Then, correlations of raising conditions were determined with four antropometric measures and 6 health scores as criterion variables. Then, number of families to live together, and child's birth order in the domain of family conditions, habits of unbalanced diet, eating frequency of eggs, fruits, green and yellow vegetables, light colored vegetables, milk products in the domain of nutrition up-take, and the time for study at home, the place for play, the number of friends to play with together, the hours for playing out of door, the hours for playing sports, and the hours to move their body for assisting house keeping were picked out to investigate their relationships with physical growth and health status. Then, their habits of unbalanced diet and eating frequency of eggs, green or yellow colored vegetables, and milk products were found more influential conditions and more over, birth order, the time for study at home, the time to play out of door showed moderate degree of connection with physical growth and health status in early childhood.

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유효 POD를 이용한 물리적 결함 수의 추정 (Estimation of the Number of Physical Flaws Using Effective POD)

  • 이재봉;박재학;김홍덕;정한섭
    • 한국안전학회지
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    • 제21권4호
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    • pp.42-48
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    • 2006
  • The strategies of maintenance and operation are usually established based on the number of flaws and their size distribution obtained from nondestructive inspection in order to preserve safety of the plant. But non destructive inspection results are different from the physical flaws which really exist in the equipments. In case of a single inspection, it is easy to estimate the number of physical flaws using the POD curve. However, we may be faced with some difficulties in obtaining the number of physical flaws from the periodic in-service non destructive inspection data. In this study a simple method for estimating the number of physical flaws from periodic in-service nondestructive inspection data was proposed. In order to obtain the flaw growth history, the flaw growth was simulated using the Monte Carlo method and the flaw size and the corresponding POD value were obtained for each flaw at each periodic inspection time. The flaw growth rate used in the simulation was statistically calculated from the in-service inspection data. By repeating the simulation numerous flaw growth data could be generated and the effective POD curve was obtained as a function of flaw size. From the effective POD curve the number of physical flaws was obtained. The usefulness and convenience of the proposed method was evaluated from several applications and satisfactory results were obtained.