• Title/Summary/Keyword: combined effects

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Damage Effects on the Ultimate Strength of Offshore Tubular Members (해양구조물 원통부재의 최종강도에 대한 손상의 영향)

  • Paik, Jeom-Ki;Shin, Byung-Cheon
    • Journal of Ocean Engineering and Technology
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    • v.3 no.2
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    • pp.77-86
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    • 1989
  • In this paper, a detail evaluation of ultimate strength of offshore unstiffened tubular members with bending and local denting damage which are subjected to combined axial force and bending moment and to component load is presented through theoretical and experimental approaches. Based upon the results obtained here, the damage effect on the ultimate strength of tubular member under combined loads and component load is investigated.

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Effects of Some Combined Crude Drug Preparations against Platelet Aggregations (수종 생약제제들의 혈소판 응집억제 작용)

  • Kim, Jae-Hoon;Yoo, Young-Sun;Mang, Mi-Ho;Yun-Choi, Hye-Sook
    • Korean Journal of Pharmacognosy
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    • v.21 no.2
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    • pp.126-129
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    • 1990
  • Platelet anti-aggregating activities were evaluated with three combined crude drug preparations which have been used for 'eahyul'-one of the pathological concept in oriental medicine presumably concerning blood stasis or stagnant syndrome. The water extract of each combined preparation and each component plant was tested for their effects against ADP, arachidonic acid (AA) or collagen induced rat platelet aggregations. Mild inhibitory activities were observed with all the three tested preparations, Kaechibokryung-Hwan, Dangkqijakyak-San and Ohnkyung-Tang, and the component plants which are included in at least two of the above preparations.

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Essential Oil Compounds from Agastache rugosa as Antifungal Agents Against Trichophyton Species

  • Shin, Seung-Won
    • Archives of Pharmacal Research
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    • v.27 no.3
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    • pp.295-299
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    • 2004
  • The antifungal activities of the essential oil from Agastache rugosa and its main component, estragole, combined with ketoconazole, one of the azole antibiotics commonly used to treat infections caused by Trichophyton species, were evaluated in this study. The combined effects were measured by the checkerboard microtiter and the disk diffusion tests, against T. erinacei, T. mentagrophytes, T. rubrum, T. schoenleinii and T. soudanense. Susceptibility of the five Trichophyton species to the oil alone, or ketoconazole alone, differed distinctly. The fractional inhibitory concentration indices (FICI) of ketoconazole combined with estragole or A. rugosa essential oil, against the tested Trichophyton species, were between 0.05 and 0.27, indicating synergistic effects. These drug combinations exhibited the most significant synergism against T. mentagrophytes, with FICIs of 0.05 and 0.09 for estragole and the essential oil fraction from A. rugosa, respectively. Isobolograms based on the data from checkerboard titer tests also indicated significant synergism between ketoconazole and the Agastache oil fraction or estragole, against the Trichophyton species evaluated. Trichophyton susceptibility to ketoconazole was significantly improved by combination with the Agastache rugosa oil fraction or its main component, estragole.

Empirical Statistical Power for Testing Multilocus Genotypic Effects under Unbalanced Designs Using a Gibbs Sampler

  • Lee, Chae-Young
    • Asian-Australasian Journal of Animal Sciences
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    • v.25 no.11
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    • pp.1511-1514
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    • 2012
  • Epistasis that may explain a large portion of the phenotypic variation for complex economic traits of animals has been ignored in many genetic association studies. A Baysian method was introduced to draw inferences about multilocus genotypic effects based on their marginal posterior distributions by a Gibbs sampler. A simulation study was conducted to provide statistical powers under various unbalanced designs by using this method. Data were simulated by combined designs of number of loci, within genotype variance, and sample size in unbalanced designs with or without null combined genotype cells. Mean empirical statistical power was estimated for testing posterior mean estimate of combined genotype effect. A practical example for obtaining empirical statistical power estimates with a given sample size was provided under unbalanced designs. The empirical statistical powers would be useful for determining an optimal design when interactive associations of multiple loci with complex phenotypes were examined.

An Experimental Investigation on Combined Convective Heat Transfer of NonNewtonian Fluids (비뉴톤유체의 복합대류 열전달에 관한 실험적 연구)

  • 김용진
    • Transactions of the Korean Society of Mechanical Engineers
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    • v.19 no.7
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    • pp.1770-1779
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    • 1995
  • A combined convective heat transfer study for non-Newtonian fluids was experimentally performed in uniformly heated horizontal tubes with laminar flow in the thermal entry region. Velocity profiles were fully developed at the entrance of the heated sections in the tubes. Aqueous solutions of sodium carboxymethylcellulose(CMC ) were used; their behavior showed a reasonably good fit into the power-law model, .tau.=K.gamma.$^{n}$ . The test sections were made of copper with inside diameters of 3.23 cm and 5.042 cm and lengths of approximately 300 cm. Most experimental runs displayed noticeable secondary flows caused by buoyancy ; when present, secondary flows caused significant increase in the rate of heat transfer over the purely forced-convection case. A correlation, which relates the rate of heat transfer for flows with temperature-dependent properties, free convection effects, and non-newtonian effects, was suggested.

Mathematical Description of Seedling Emergence of Rice and Echinochloa species as Influenced by Soil burial depth

  • Kim Do-Soon;Kwon Yong-Woong;Lee Byun-Woo
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.51 no.4
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    • pp.362-368
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    • 2006
  • A pot experiment was conducted to investigate the effects of soil burial depth on seedling emergences of rice (Oryza sativa) and Echinochloa spp. and to model such effects for mathematical prediction of seedling emergences. When the Gompertz curve was fitted at each soil depth, the parameter C decreased in a logistic form with increasing soil depth, while the parameter M increased in an exponential form and the parameter B appeared to be constant. The Gompertz curve was combined by incorporating the logistic model for the parameter C, the exponential model for the parameter M, and the constant for the parameter B. This combined model well described seedling emergence of rice and Echinochloa species as influenced by soil burial depth and predicted seedling emergence at a given time after sowing and a soil burial depth. Thus, the combined model can be used to simulate seedling emergence of crop sown in different soil depths and weeds present in various soil depths.

Therapeutic Effects of Low-Level Laser Combined with LED on Post-operative Hand

  • Jeong-Sun Lee;Hwa-Kyung Shin
    • The Journal of Korean Physical Therapy
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    • v.36 no.1
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    • pp.14-20
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    • 2024
  • Purpose: This study was performed to identify and investigate the therapeutic effects of low-level laser (LLL) combined with a light-emitting diode (LED) on post-operative wound healing and functional recovery after hand orthopedic surgery. Methods: The study subjects were twenty patients who had passed the acute inflammatory phase after hand orthopedic surgery and were assigned equally to an experimental or a control group. Phototherapy was administered three times weekly for two weeks. Changes in wound length, edema, pain, and hand function were measured. Results: Significant differences in wound length, edema, pain, and hand function were observed between the experimental and control groups (p<0.05). However, no significant intergroup difference was observed (p>0.05). Nonetheless, a comparison of results showed changes in the experiment group over the two-week study period were significantly greater than in the control group (p<0.05). Conclusion: These findings show that combined LLL plus LED phototherapy positively influences post-operative hand rehabilitation.

The Convergence Study on the Effects of Combined Exercise Rehabilitation on Lower limb Muscular function and Cytokines in the Taekwondo players with Patellofemoral Pain Syndrome (무릎넙다리통증증후군 태권도 선수들의 복합 운동재활이 하지 근기능 및 사이토카인의 효과에 관한 융합적 연구)

  • An, Hwan-Pil
    • Journal of the Korea Convergence Society
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    • v.8 no.1
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    • pp.245-256
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    • 2017
  • The purpose of this study was to determined the converge effects of combined exercise rehabilitation on lower limb muscular function and cytokines in taekwondo player with patellofemoral pain syndrome. In this study, combined exercise rehabilitation(aquatic exercise 3 times a week, resistance exercise 2 times a week) was performed and 20 collegiate taekwondo player with patellofemoral pain syndrome(control group: n=10, combined exercise rehabilitation group: n=10) were participated for 8 weeks. Statistical significance verification was carried out by a two - way ANOVA repeated measures design as a mixture using the SPSS 18.0 program. The statistically significant level was set at 0.05. The results of this study were as following. Peak torque was higher significantly in extensor(p<.001) and flexor(p<.01) at $60^{\circ}/sec$ in the combined exercise rehabilitation group than the control group over combined exercise treatment period. Average power was higher significantly in extensor muscles at $180^{\circ}/sec$ in the combined exercise rehabilitation group than the control group over combined exercise treatment period.(p<.01). The variable of TNF-a was higher significantly in the combined exercise rehabilitation group than the control group as over combined exercise treatment period. Therefore, it can be concluded that a combined exercise rehabilitation program is effective in improving the lower limb muscular function and TNF-a in Patellofemoral Pain Syndrome patient.

The Combined Effects of Exercise and Garlic Pill Intake on Body Composition, CRP and Adiponectin in Obese High School Male Students (복합운동과 마늘환 섭취가 비만남고생의 신체조성, C-반응단백 및 아디포넥틴에 미치는 영향)

  • Sung, Gi-Dong;Kwak, Yi-Sub;Lee, Sang-Ho;Baek, Yeong-Ho
    • Journal of Life Science
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    • v.19 no.11
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    • pp.1605-1610
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    • 2009
  • The purpose of this study was to investigate the effects of combined exercise program and garlic pill intake on Body Composition, CRP and Adiponectin in obese high school male students. Twenty-one male students in city B volunteered to participate, and the signed consents were received before the study. Experimental groups were garlic pill intake with combined exercise group (n=7), combined exercise group (n=7), control group (n=7). The total experimental period was 16 weeks. The combined exercise group exercised 3 times a week for 16 weeks with intensity of RPE 7~15. Each exercise was 70 minutes long. A 5 g garlic pill was consumed after lunch and dinner every day. For statistics, two-way repeated test within the group was conducted through SPSS 12.0; for post-examination, Scheffe was utilized; and for inter-group examination, a paired t-test was used. The conclusions of this study are as follows. Between groups, combined exercise with garlic pill group had a significant decrease in %body fat. Within each group, combined exercise with garlic pill group had a significantly greater decrease in %body fat than the control group. Between groups, combined exercise with garlic pill group had a significant decrease in LBM. Between groups, combined exercise with garlic pill group had a significant decrease in CRP. Between groups, combined exercise with garlic pill group, combined exercise and control group showed a decrease in adiponectin. In conclusion, regular exercise and garlic pill intake improved % body fat in obese high school male students.

Combined Acupoint's Effects of Cauterizing with Moxa at SI8, LI11, SP9 and ST36 on Small Intestinal Motility in Rats (음릉천(陰陵泉), 족삼리(足三里), 소해(小海), 곡지(曲池) 배혈(配穴)에 따른 시구(施灸)가 흰쥐의 소장 수송능에 미치는 영향)

  • Yu, Yun-Cho
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.24 no.5
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    • pp.814-821
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    • 2010
  • The purpose of this study was to investigate effects of moxibustion at combined acupoints on sex and age in rats. This study measured the effects of moxibustion on small intestinal motility in rats. Cauterizing with moxa was applied 5 times to the acupoints on SI8, LI11 SP9 and ST36 under enflurane anesthesia in the groups divided with sex and age. In single acupoint groups, cauterizing with moxa on ST36 increased in all of sex and age groups. The SP9 group with 5, 6 weeks in female and 5, 8 weeks in male, the SI8 group with 5, 7 weeks in female and only 7 weeks in male, the LI11 group with only 5, 6, 7 weeks in female and only 7 weeks in male showed increasing on small intestinal motility. In combined acupoints groups, the SI8+SP9 group with 7 weeks in female and 5, 6, 8 weeks in male, the SI8+ST36 group with 5, 6 weeks in female and 8 weeks in male, the LI11+SP9 group with 5, 6 weeks in female and 6 weeks in male, the LI11+ST36 group with 5 weeks in female and 5, 6, 7 weeks in male showed increasing respectively. Although these different according to the sex and age in rats do not have a established tendency, the results suggested that the effects of combined acupoints of cauterizing with moxa have relation with individuality.