• Title/Summary/Keyword: Mass function

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Effect of Particifation of Exercise to Cardiopulmonary System Function and Body Fat by Life Style (생활습관에 따른 운동참여도가 심폐기능향상과 체지방감소에 미치는 영향)

  • Song, Yun-Kyung;Lim, Hyung-Ho;Park, Sung-Ho
    • Journal of Korean Medicine for Obesity Research
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    • v.4 no.1
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    • pp.95-123
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    • 2004
  • Objects: This study was aimed to find out correlation between life style and cardiopulmonary function and body fat. Methods: We divided two groups by the score of behavior modification therapy questionnaire. Westudied tendency of change of cardiopulmonary function and body fat for medication of Mahuang capsule by ergogenic aids and placebo with circuit training. We got the results for Exercise stress test and Segmental Bioelectrical Impedence Analysis. Results: 1. High Score Group in Behavior Modification Therapy Questionnaire significantly(p<.05) showed elevation of Lean Body Mass, Body Fat, Waist Circumference and not significantly elevation of Body Weight, But Basal Metabolic Rate was declined. Low Score Group in Behavior Modification Therapy Questionnaire significantly(p<.05) showed elevation of Waist Circumference and not significantly elevation of Body Weight and Body Fat, Lean Body Mass but decline of Basal Metabolic Rate, Waist to Hip Ratio 2. High Score Group in Behavior Modification Therapy Questionnaire significantly(p<.05) showed elevation of $VO_{2max}$ and not significantly elevation of the rest. Low Score Group in Behavior Modification Therapy Questionnaire significantly(p<.05) showed elevation of rest Heart Rate, Diastolic Blood Pressure, and not significantly elevation of the rest except for METs Conclusion: High score group in Behavior Modification Therapy Questionnaire showed significantly elevation of body composition, but had no relationship with Cardiopulmonary function

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A Nuclide Transfer Model for Barriers of the Seabed Repository Using Response Function (응답함수를 이용한 해저처분장의 방벽에 대한 핵종전달 모델)

  • Lee, Youn-Myoung;Kang, Chul-Hyung;Hahn, Pil-Soo
    • Nuclear Engineering and Technology
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    • v.28 no.2
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    • pp.175-184
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    • 1996
  • A nuclide transfer by utilizing mass transfer coefficient and barrier response function defined for each barrier is proposed, by which the final nuclide transfer rate into the sea water can be evaluated. When simple and immediate quantification of the nuclide release is necessary in the conservative aspect, using this kind of approach may be advantageous since each layered barrier can be treated separately from other media in series in the repository system, making it possible to apply separate solutions in succession to other various media. Although one disadvantage is that while flux continuity can be maintained at the interface by using the exit nuclide flux from the first medium as the source flux for the next one, there may be no guarantee for concentration continuity, this problem could be eliminated assuming that there is no boundary resistance to mass transfer across the interface. Mass transfer coefficient can be determined by the assumption that the nuclide concentration gradient at the interface between adjacent barriers remains constant and barrier response function is obtained from an analytical expression for nuclide flow rate out of each barrier in response to a unit impulse into the barrier multiplied by mass transfer coefficient. Total time-dependent nuclide transfer rate from the barrier can then be obtained by convoluting the response function for the barrier with a previously calculated set of time-varying input of nuclide flow rate for the previous barrier.

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Factors Influencing Sexual Function in Postmenopausal Married Women (폐경후기 기혼여성의 성기능 영향요인)

  • Kim, Hye Young;Ko, Eun
    • Women's Health Nursing
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    • v.22 no.4
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    • pp.287-296
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    • 2016
  • Purpose: This study identified the level of marital intimacy, menopausal symptom and sexual function, and examined factors affecting sexual function in postmenopausal married women. Methods: With cross-sectional survey, a sample of 245 subjects aged 45 to 60 years was recruited from January to March, 2014. Data were collected using self-reported questionnaires which included marital intimacy questionnaire (MIQ), menopause rating scale (MRS), and female sexual function index (FSFI). Data were analyzed by descriptive statistics, t-test, ANOVA, Pearson correlation coefficients and stepwise multiple regression. Results: Marital intimacy, menopausal symptom and sexual function scores of subjects were $3.46{\pm}1.14$, $13.71{\pm}6.61$, and $12.55{\pm}8.33$, respectively. Marital intimacy and menopausal symptom were related to sexual function. Variables including marital intimacy, psychosocial and urogenital menopausal symptom, period since menopause and body mass index therapy explained 51.5% in sexual function of participants. Conclusion: When nurses plan sexual counseling and education for sexual function of postmenopausal married women, it is necessary to consider marital intimacy, menopausal symptoms, and menopause-related factors.

Discrimination of Grading Pungency for Red Peppers Spice Using Electronic Nose Based on Mass Spectrometer (고춧가루의 매운 맛 등급화를 위한 Mass Spectrometer를 바탕으로 한 전자코 분석)

  • Kang, Jin Hee;Son, Hee-Jin;Hong, Eun-Jeung;Noh, Bong-Soo
    • Food Engineering Progress
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    • v.14 no.1
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    • pp.35-40
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    • 2010
  • Electronic nose (E-nose) was assessed for grading pungency of powdered red pepper. Complex pretreatments are not required for flavor analysis unlike HPLC or Scoville tests. Mild and pungent taste of powdered red pepper were mixed at various concentrations of 0, 25, 50, 75, and 100%. Those were analyzed using mass spectrometer-based E-nose. Discriminant function analysis (DFA) was conducted on E-nose data. The $R^{2}$ and F-value of dicriminant function first score (DF1) were 0.9946 and 355.65, respectively, when the samples were separated by a relative degree of pungent taste. DF1 value decreased with increasing the amount of powdered red pepper with a pungent taste. It is similar to the increase in the concentration of capsaicin. Increasing the amount of red pepper powder, dicriminant function second score (DF2) values were moved from the negative position into the positive position. The $R^{2}$ and F-value of DF1 were 0.9890, 165.17 and DF2 were 0.9219, 21.64. Also, the results by MS based E-nose agreed to that by HPLC. There is the potential to grade pungent taste of powdered red pepper using the E-nose.

Effects of Protein Intake on Sarcopenia Prevention and Physical Function of the Elderly in a Rural Community of South Korea During the COVID-19 Pandemic (COVID-19시대 한국 농촌 지역 노인의 단백질 섭취가 근감소증 예방 및 신체기능에 미치는 영향)

  • Li, Xinxing;Kim, Hee-Jae;Kim, Dae-Young;Zhang, Yanjie;Seo, Ji-Won;Ahn, Seo-Hyun;Song, Wook
    • Journal of The Korean Society of Integrative Medicine
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    • v.10 no.2
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    • pp.37-47
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    • 2022
  • Purpose : We aimed to investigate the effects of nutritional foods on sarcopenia prevention and physical function among the elderly living in rural communities during the COVID-19 pandemic by providing customized nutrition. Methods : This study was conducted in the rural community of SCC. Participants (n=24, over age 65) were randomly assigned into a Protein group (n=12) and a Vitamin group (n=12). The protein group was given 23 g/d of protein (whey, soybean, BCAA) for 8 weeks and the Vitamin group 23 g/d of vitamin (B, C, D, E and mixed minerals such as calcium, magnesium, zinc) for 8 weeks. All participants had their body composition such as height, weight, skeletal muscle mass, body mass index, and body fat percentage, measured using bioelectrical impedance analysis (BIA) and physical function assessed using grip strength and the short physical performance battery (SPPB). Results : At the end of the intervention, there was a significant increase in skeletal muscle mass (p<.01) in the Protein group (p=.002, 4.92 %) compared to the baseline: it increased by 2.33 %. The Vitamin group had a significant increase in body fat percentage after the intervention (p=.001, 15.35 %) compared to the baseline: body fat percentage decreased by 4.49 %. There were no significant differences in left and right Grip strength/Weight, SPPB, 4-m gait speed, chair stand test, and sense of balance in both groups. Conclusion : The findings from this study suggest that 8 weeks of protein intake have a significant effect on skeletal muscle mass and body fat percentage. Protein intake helped promoting the health of the elderly in rural community during the COVID-19 pandemic. It will assist creating a foundation for providing customized nutrition for the elderly in rural community in the future.

An Investigation on Flow Stability with Damping of Flow Oscillations in CANDU-6 heat Transport System (CANDU-6 열수송 계통의 유동 진동감쇠에 의한 유동안정성 연구)

  • 김태한;심우건;한상구;정종식;김선철
    • Journal of KSNVE
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    • v.6 no.2
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    • pp.163-177
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    • 1996
  • An investigation on thermohydraulic stability of flow oscillations in the CANada Deuterium Uranium-600(CANDU-6) heat transport system has been conducted. Flow oscillations in reactor coolant loops, comprising two heat sources and two heat sinks in series, are possibly caused by the response of the pressure to extraction of fluid in two-phase region. This response consists of two contributions, one arising from mass and another from enthalpy change in the two-phase region. The system computer code used in the investigation os SOPHT, which is capable of simulating steady states as well as transients with varying boundary conditions. The model was derived by linearizing and solving one-dimensional, homogeneous single- and two-phase flow conservation equations. The mass, energy and momentum equations with boundary conditions are set up throughout the system in matrix form based on a node-link structure. Loop stability was studied under full power conditions with interconnecting the two compressible two phase regions in the figure-of-eight circuit. The dominant function of the interconnecting pipe is the transfer of mass between the two-phase regions. Parametric survey of loop stability characteristics, i. e., damping ratio and period, has been made as a function of geometrical parameters of the interconnection line such as diameter, length, height and orifice flow coefficient. The stability characteristics with interconnection line has been clarified to provide a simple criterion to be used as a guide in scaling of the pipe.

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Discrimination of Geographical Origin of Beef Using Electronic Nose Based on Mass Spectrometer (질량분석기가 연결된 전자코를 사용한 쇠고기의 원산지 판별)

  • Lim, Chae-Lan;Son, Hee-Jin;Hong, Eun-Jeung;Noh, Bong-Soo
    • Korean Journal of Food Science and Technology
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    • v.40 no.6
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    • pp.717-720
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    • 2008
  • In this study, the geographical origin of beef was studied using an electronic nose based on mass spectrometer. Domestic beef was compared with the imported beef from New Zealand and Australia. Each sample was analyzed, and discriminant function analysis was used utilized for the discrimination of geographical origin. The $R^2$ and F-value of discriminant function analysis (DFA)1 were 0.4317 and 14.18, respectively when the samples were separated by geographical origin. The $R^2$ and F-value of DFA1 were 0.8960 and 22.98, respectively when the samples were separated by part of beef.

Structure and Function of the Reproductive System of Aplysia kurodai

  • Lee, Chi-Hoon;Kaang, Bong-Kiun;Lee, Young-Don
    • Development and Reproduction
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    • v.19 no.4
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    • pp.197-207
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    • 2015
  • This study investigated structure and function of the reproductive system in Aplysia kurodai by means of anatomical, histological, and histochemical observation. Reproductive system of this species is consisted of ovotestis, small hermaphroditic duct, ampulla, accessory genital mass and large hermaphroditic duct. The ovotestis is composed of a large number of follicles, and both oocytes and spermatocytes matured in the same follicle. The small hermaphroditic duct is a single tube and contains a swelling, the ampulla, which functions as a storage organ for endogenous sperm and an oviduct. The accessory genital mass is connected to both the small and large hermaphroditic duct, and consisted of three glands: albumen, membrane (winding) and mucus gland. The albumen gland is consisted of granular cells producing basophilic and neutral mucopolysaccharides. The membrane and mucus gland are consisted of granular cells producing acidophilc and sulfated mucopolysaccharides. The large hermaphroditic duct is a single tubular gonoduct linking the accessory genital mass to the common genital aperture but is consisted of two parallel compartments. Internally, these two compartments are incompletely divided by internal septum or fold, which are called as the red hemiduct and white hemiduct, respectively. The red hemiduct functions as an oviduct and the white hemiduct functions as a copulatory duct. The reproductive system of A. kurodai is externally comprised a single tube, i.e., monaulic type. However, internal structure of duct is incompletely divided into oviduct and copulatory duct, i.e., the oodiaulic type.

The Retrospective Study on Modified Fasting Therapy in Inpatients (절식요법을 시행한 입원환자의 후향적 연구)

  • Jung, Soon-Kwan;Kim, Dong-Eun;Yu, Deok-Seon;Yeom, Seung-Ryong;Song, Yung-Sun;Kwon, Young-Dal
    • Journal of Korean Medicine Rehabilitation
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    • v.18 no.4
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    • pp.171-187
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    • 2008
  • Objectives : The purpose of this study was to investigate the effects of modified fasting therapy on body composition, blood cell count and blood chemistry in inpatients. Methods : The modified fasting therapy program consists of three phases, a period of reducing food intakes, fasting and refeeding. Body weight, body composition, and the degree of obesity were estimated in before fasting therapy and after refeeding. Blood cell count and blood chemistry were estimated in before fasting therapy, before refeeding and after refeeding. Results : After modified fasting therapy, body weight, body fat mass, percent body fat, body mass index(BMI), body matabolic rate(BMR) and muscle mass was decreased significantly. WBC count and platelet count decreased significantly, RBC count and hemoglobin increased significantly and hematocrit was not changed significantly but within normal limit. AST and ALT increased significantly, especially patients group over BMI 25 within normal liver function. This study was not founded correlation between decreased muscle mass and increased liver function test. ALP, BUN, Total-cholesterol, and triglyceride decreased significantly. Creatinine increased significantly, but within normal limit. Sodium was not changed significantly, potassium decreased significantly but within normal limit. Conclusions : These results suggest that modified fasting therapy will be beneficial if several measures complement.

Design Parameter Identification Using Transfer Function of Liquid Column Vibration Absorber (LCVA) (전달함수를 이용한 LCVA의 설계변수 분석)

  • Lee, Sung-Kyung;Min, Kyung-Won;Chung, Hee-San
    • Journal of the Earthquake Engineering Society of Korea
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    • v.13 no.4
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    • pp.47-55
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    • 2009
  • The purpose of this study is to verify the transfer function of input acceleration and output control force by linearizing a velocity-dependent damping term of Liquid Column Vibration Absorber (LCVA). Analytical and experimental research is conducted to identify natural frequency, damping ratio and participated mass ratio of LCVA with various section ratios of vertical and horizontal areas. Findings obtained experimentally by the shaking table test are compared with analytical findings using optimization technique with constraints. The results indicate that the level of liquid and section ratio of LCVA affect the characteristics of damping ratio and mass ratio. Damping and mass ratio increase as the section of vertical column of LCVA decreases, due to turbulence in the elbow of LCVA.