• Title/Summary/Keyword: Pressure-Composition

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The Changes of the body composition and vascular flexibility According to Pilates mat Exercise during 12 weeks in elderly women (12주간 필라테스 매트 운동에 따른 노인 여성의 신체조성 및 혈관탄성도의 변화)

  • Jang, Ji-Eun;Yoo, Yong-Kwon;Lee, Byung-Hoon
    • The Journal of the Korea institute of electronic communication sciences
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    • v.8 no.11
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    • pp.1777-1784
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    • 2013
  • The purpose of this study was Changes of body composition and vascular flexibility check according to Pilates Mat exercise in elderly Women and in future, Exercise programs for seniors health promotion as evidence when tried to utilize. Female 30 elderly patients classified into the control group and the exercise group, who was conducted Pilates Mat exercise was gradually intensity applied for 60 minutes, three times per 1week, a total of 12 weeks. The following were result the study. Body composition showed statistically significant increased(p<.01) in skeletal muscle and body fat rates was decreased(p<.01), and there was no statistically significant difference in body fat mass. Vascular flexibility showed systolic pressure was statistically significant decreased(p<.01) and peripheral pulse pressure were statistically significant decreased(p<.01), and there was no statistically significantly difference in diastolic pressure and aorta pulse pressure. As a result of all these, it was judged that a positive effect for body composition, and vascular flexibility after pilates mat exercise in 12 weeks.

Effects of Combustion Atmosphere Pressure on Non-premixed Counterflow Flame (비예혼합 대향류 화염에서 연소 분위기 압력 영향 연구)

  • Lee, Kee-Man
    • Journal of Advanced Marine Engineering and Technology
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    • v.30 no.8
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    • pp.853-862
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    • 2006
  • The present study is numerically investigated the flame structure of non-premixed counterflow jet flames using the laminar flamelet model Detailed flame structures with the fuel composition of 40% CO, 30% $H_2$. 30% $N_2$ and an oxidizer composition of 79% $N_2$ and 21% $O_2$ in a non-premixed counterflow flame are studied numerically. This study is aimed to investigate the effects of axial velocity gradient and combustion atmosphere pressure on flame structure. The results show that the role of axial velocity gradient on combustion processes is globally opposite to that of combustion atmosphere pressure. That is, chemical nonequilibrium effects become dominant with increasing axial velocity gradient, but are suppressed with increasing ambient pressure. Also, the flame strength is globally weakened by the increase of axial velocity gradient but is augmented by the increase of ambient pressure. However, flame extinction is described better on the basis of only chemical reaction and in this study axial velocity gradient and ambient pressure play a similar role conceptually such that the increase of axial velocity gradient and ambient pressure cause flame not to be extinguished and extend the extinction limit, respectively. Consequently it is suggested that a combustion process like flame extinction is mainly influenced by the competition between the radical formation reaction and the third-body recombination reaction.

The Effects of Weight Control Program on Body Composition, Blood Pressure, Serum Lipid and Self-Regulation Behavior in Obese College Women (비만중재프로그램이 비만 여대생의 신체구성, 혈압, 혈중지질 및 자기조절행위에 미치는 효과)

  • Kim, Kyung Hae;Chung, Bok Yae;Byun, Hye Sun
    • Korean Journal of Adult Nursing
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    • v.19 no.3
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    • pp.339-352
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    • 2007
  • Purpose: The purpose of this study was to investigate the effect of weight control program on body composition(body mass index and waist-hip ratio), blood pressure, serum lipids(total cholesterol, triglyceride, high density lipoprotein and low density lipoprotein) and self-regulation behavior in obese college women. Methods: Forty seven obese subjects were divided into experimental(22) and control(25) groups. The weight control program lasting 12 weeks consisted of a traffic-light diet, jumping-rope exercises, and behavior modification methods with e-mail counseling. The data were collected from 29 March to 17 September of 2004. The variables were assessed before and after intervention for 12 weeks in two groups. Then, those were repeated after a 12 week suspension of intervention in the experimental group. The data were analysed by the SPSS computer program. Results: BMI, HDL, LDL and self-regulation behavior levels showed significant differences between the experimental and control groups. While there were no significant differences in waist-hip ratio, blood pressure, total cholesterol and triglyceride. Conclusion: The weight control program had a positive effect on obese college women, and can be used to control obesity.

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Mathematical Modeling of Combustion Characteristics in HVOF Thermal Spray Processes(I): Chemical Composition of Combustion Products and Adiabatic Flame Temperature (HVOF 열용사 프로세스에서의 연소특성에 관한 수학적 모델링(I): 연소생성물의 화학조성 및 단열화염온도)

  • Yang, Young-Myung;Kim, Ho-Yeon
    • Journal of the Korean Society of Combustion
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    • v.3 no.1
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    • pp.21-29
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    • 1998
  • Mathematical modeling of combustion characteristics in HVOF thermal spray processes was carried out on the basis of equilibrium chemistry. The main objective of this work was the development of a computation code which allows to determine chemical composition of combustion products, adiabatic flame temperature, thermodynamic and transport properties. The free energy minimization method was employed with the descent Newton-Raphson technique for numerical solution of systems of nonlinear thermochemical equations. Adiabatic flame temperature was calculated by using a Newton#s iterative method incorporating the computation module of chemical composition. The performance of this code was verified by comparing computational results with data obtained by ChemKin code and in the literature. Comparisons between the calculated and measured flame temperatures showed a deviation less than 2%. It was observed that adiabatic flame temperature augments with increase in combustion pressure; the influence was significant in the region of low pressure but becomes weaker and weaker with increase in pressure. Relationships of adiabatic flame temperature, dissociation ratio and combustion pressure were also analyzed.

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Composition of Oriental Painting Lesson Using Photoshop Layers (포토샵 레이어 기능을 활용한 동양회화 구도수업)

  • Park, Ha-Na;Huh, Yoon-Jung
    • The Journal of the Korea Contents Association
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    • v.14 no.10
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    • pp.361-373
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    • 2014
  • Oriental painting lesson is considered neglectedly, because of pressure on teachers and troublesomeness of preparing and using for art supplies. However, change of medium can solve pressure on teachers and students for Oriental painting lesson enough. Therefore this study will present composition of Oriental painting lesson planning using photoshop program as a way of overcoming weak points, increasing students' interests and giving effective composition lesson. We developed composition of Oriental painting lesson planning using layer of photoshop program. Then We surveyed 60 students who are two classes of the first grade in G high school to know the effect and possibility of the lesson planning and analyzed the results. The most(75%) of the respondents answered that composition of Oriental painting lesson planning using photoshop program was appropriate. The more than half (58.3%) respondents wanted to participated in lesson regardless of any subjects. That shows highly interest for photoshop program. The respondents answered that the merits of this lesson using photoshop program are less pressure for drawing(33.3%), possibility of variety expression(30%), not requiring art supplies(26.6%). So this study shows using photoshop program for art class can solve weak points of Oriental painting lesson.

A Study of the Correlation between Plantar Pressure and Obses Index in obses women. (비만인의 족저부 압력 분포 차이와 비만지표와의 상관성 연구)

  • Soh, Mun-Gie;Lim, Hyung-Ho;Song, Yun-Kyung
    • The Journal of Churna Manual Medicine for Spine and Nerves
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    • v.2 no.1
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    • pp.115-125
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    • 2007
  • Objectives : The limited number of studies to date have mainly focused on the effect of obesity on the characteristics of plantar foot pressures. This study is designed to find the correlation between plantar pressure and obese index. Methods : This study assessed the body composition of 30 obese women using bioelectrical impidence analysis and Gaitview AFA-50. The static and dynamic plantar pressure was determined from electronic footprints captured using a capacitive pressure distribution platform during standing and walking. The data were analysed by independent t-test and Pearson Correlation. Results : Positive correlations were noted between body weight, body mass index(BMI), waist circumference(WC), waist-hip ratio(WHR) and difference of fore and rear plantar pressure. And negative correlations were noted between body weight, BMI, WC, WHR and difference of left and right plantar pressure. Conclusions : The findings of this pilot study suggest that body composition influences the waight distribution in overweight and obese subjects.

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Effect of CCC Composition on Burning Characteristic for 120mm Kinetic Energy Ammunition (120미리 운동에너지탄용 소진탄피 조성이 연소 특성에 미치는 영향)

  • Kwon, Soon-Kil;Hwang, Jun-Sik;Choi, Sang-Kyung;Kim, Jin-Seok
    • Journal of the Korea Institute of Military Science and Technology
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    • v.8 no.4 s.23
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    • pp.146-151
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    • 2005
  • The burning rates of combustible cartridge cases(CCCs) of 120mm kinetic energy ammunition were measured by CBT(Closed Bomb Tester). The burning coefficient was 1.4 for CCC fabricated by Post Impregnation(PI) process, and 1.0 for that by Beater Additive(BA) process. The BA process CCC showed the fixed burning coefficient of 1.0 in spite of changing the composition of CCC. As the Korean Future Main Battle Tank is requiring the high penetration performance compared with that of KlAl tank ammunition(K276), CCC was designed to have higher impetus composition than that of K276 composition(525J/g). The optimum impetus was 600J/g when considering the increases of pressure and muzzle velocity with increasing impetus. When impetus of CCC by changing the composition increased from 525J/g to 600J/g, the muzzle velocity of 12m/s at pressure increase of 3500psi increased in case of using SCDB propellant.

A Study on the storage of Fresh Fruits and Vegetables (Part II) Effects of Intercellular atmosphere and Ethylene evolution by control of external pressure and gas composition in Apple Fruits. (청과물 저장에 관한 연구(제 2보) -사과 저장에 있어서 환경압력 및 기체조성이 사과조직내 기체조성과 Ethylene 생성에 미치는 영향-)

  • 손태화;최종욱;서온수
    • Microbiology and Biotechnology Letters
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    • v.1 no.1
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    • pp.25-30
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    • 1973
  • Experiments were carried out to clarify changes of intercellular gas composition, respiration and ethylene evolution by controlled external atmospheric pressure and external gas composition on apples. Jonathan apples, harvested 25, in September and Rolls apples, harvested 25, in October, 1971 and 1972 were used. Results obtained were as follows: 1. Intercellular gas volumes were proportionally changed by the given pressure, and the given pressure remarkably affected internal gas composition and volume of apples. As intercellular gas volumes were reached in their equilibrium within 5 min. after treatment, the internal atmospheric conditions became constant rapidly. 2. The increase of internal $CO_2$ production was co-related with an amount of internal $O_2$ consumption, therefore, the decreasing period of internal $O_2$ consumption was equalled to the period of climacteric rise in respiration. 3. The increasing of $CO_2$ production followed evolution of $C_2$H$_4$ and this phenomenon on SAP part. was subsequent to NAP part 4. In sub-atmospheric storage, CA effect was also obtained by control of low $O_2$ and high $CO_2$ concentration.

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Simple Modeling of Plastic Layer in Coke Oven for Internal Gas Pressure (단순 연화층 모델을 적용한 석탄 성상별 Coke Oven 내의 가스압 특성)

  • Park, Ju-Hyun;Choi, Sang-Min
    • 한국연소학회:학술대회논문집
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    • 2006.10a
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    • pp.36-41
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    • 2006
  • A simplified model of plastic layer and internal gas pressure In a coke oven is presented. We calculate internal gas pressure using presented model. And results are compared with calculated results using experimental data. Results show the difference of internal gas pressure by coal composition. The model is used to show that the permeability at the resolidification end of the plastic layer is a key determinant of the magnitude of the internal gas pressure.

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A Numerical Study on the Growth and Composition of InGaAs, InGaP and InGaAsP Films Grown by MOCVD (MOCVD에 의한 InGaAs, InGaP 및 InGaAsP필름의 성장 및 조성변화에 대한 수치해석 연구)

  • Im, Ik-Tae;Kim, Dong-Suk;Kim, Woo-Seung
    • Journal of the Semiconductor & Display Technology
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    • v.4 no.1 s.10
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    • pp.43-48
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    • 2005
  • Metaloganic chemical vapor deposition, also known as metalorganic vapor phase epitaxy has become one of the main techniques for growing thin, high purity films for compound semiconductors such as GaAs, InP, and InGaAsP. In this study, the distribution of growth rate and composition of InGaAsP, InGaP, and InGaAs films are studied using computational method. The influences of process parameters such as pressure, temperature and precursors' partial pressure on the growth rate and composition distributions are analyzed. The film growth rate is increased in the upstream part according to the increase of temperature but not in the downstream part. The Ga composition in InGaAsP film shows an asymptotic behavior for temperature variation but As composition varies significantly within the temperature range considered in the present study. The overall film growth rates of InGaP, InGaAs and InGaAsP are decreased with increasing the Ga/In ratios of the source gases. Pressure variation does not seem to be a significant parameter to the film growth. Film growth characteristics of tertiary films such as InGaP and InGaAs show similar trends to the quaternary film, InGaAsP.

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