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A biomechanical model correlating shoulder kinetics to pain in young baseball pitchers

. Dynamics of the shoulder and elbow joints of the throwing arm during a baseball pitch. Int J Sport Biomech , 1986; 2: 235-259 Fleisig GS, Andrews JR, Dillman CJ, Escamilla RF. Kinetics of baseball pitching with implications about injury mechanisms . Am J Sport Med , 1995; 23: 233-239 Fleisig GS, Barrentine SW, Escamilla RF, Andrews JR. Biomechanics of overhand throwing with implications for injuries. Sports Med , 1996; 21: 421-437 Fleisig GS, Barrentine SW, Zheng N, Escamilla RF, Andrews JR. Kinematic and kinetic

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Kinematics and Kinetics of Taekwon-do Side Kick

Kinematics and Kinetics of Taekwon-do Side Kick

The aim of the paper is to present an analysis of the influence of selected kinematic factors on the side kick technique. This issue is especially important in the traditional version of taekwon-do, in which a single strike may reveal the winner. Six taekwon-do (International Taekwon-do Federation) athletes were asked to participate in this case study. Generally accepted criteria of sports technique biomechanical analysis were adhered to. The athletes executed a side kick three times (in Taekwon-do terminology referred to as yop chagi) in a way which they use the kick in board breaking. The obtained data were used to determine the mean velocity changes in the function of relative extension length of the kicking leg. The maximum knee and foot velocities in the Cartesian coordinate system were determined. The leg lifting time and the duration of kick execution as well as the maximum force which the standing foot exerted on the ground were also determined. On the basis of the obtained values, mean values and standard deviations were calculated. The correlation dependence (r=0.72) shows that greater knee velocity affects the velocity which the foot develops as well as the fact that the total time of kick execution depends on the velocity which the knee (r = -0.59) and the foot (r = -0.86) develop in the leg lifting phase. The average maximum speed was obtained at the length of the leg equal to 82% of the maximum length of the fully extended leg. This length can be considered the optimum value for achieving the maximum dynamics of the kick.

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Experimental determination of the kinetics of sorption and gas filtration in coal

1 Introduction When considering the concept of sorption kinetics in a porous solid, it should be noted that in this process, we deal with two phenomena: transport of gas into the interior of the porous substance and settling of gas molecules on the surface or within the volume of a solid. Furthermore, in this paper, sorption is understood as all phenomena associated with adsorption or desorption of gas on the surface of a solid. Adsorption is understood as the concentration of a substance on the surface or in the pore volume of a solid due to attracting

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Kinetics and thermodynamics of gossypol extraction from defatted cottonseed meal by ethanol

. American Oil Chemists' Society , 71(4), 417-421, DOI: 10.1007/BF02540523. Saxena, D. K., Sharma, S. K. & Sambi, S. S. (2011), Kinetics and Thermodynamics of cottonseed oil extraction., Grasas y Aceites , 62 (2), 198-205. DOI: 10.3989/gya.090210. Meziane, S., Kadi, H. & Lamrous, O. (2006). Kinetic study of oil extraction from olive foot cake. Grasas y Aceites , 57(2): 175-179. DOI:10.3989/gya.2006.v57.i2. Meziane, S. & Kadi, H., (2008). Kinetics and thermodynamics of oil extraction from olive

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Aspect of the degradation and adsorption kinetics of atrazine and metolachlor in andisol soil

.chemosphere.2010.12.054 . Celis, R., Cornejo, J., Hermosín, M.C. and Koskinen, W.C. 1997. Sorption-desorption of atrazine and simazine by model soil colloidal components. Soil Science Society of America Journal, 61: 436-443. Chirukuri, R. and Atmakuru, R. 2015. Sorption characteristics and persistence of herbicide bispyribac sodium in different global soils. Chemosphere, 138: 932-9. doi: 10.1016/j.chemosphere.2014.12.029. de Wilde, T., Mertens, J., Spanoghe, P., Ryckeboer, J., Jaeken, P. and Springael, D. 2008. Sorption kinetics and its effects on retention

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Kinetics of the Bainite Transformation in Austempered Ductile Iron ADI

.A., Bhadeshia H.K.D.H., Mathematical Modelling of Bainite Transformation Kinetics. Journal de Physique. C5 7 (1997) 41-46. 23. Ławrynowicz Z., Przemiana bainityczna: matematyczne modelowanie kinetyki przemiany, Zeszyty Naukowe Politechniki Poznańskiej, Budowa Maszyn i Zarządzanie Produkcją. 1 (2004) 35-46. 24. Bhadeshia H.K.D.H., Bainite in Steels, Institute of Materials, 1-458, London, (1992). 25. Ławrynowicz Z., Carbon diffusion during bainite reaction in Fe-Cr-Si-C steel, 11th International Symposium on Advanced Materials ISAM-2009, Islamabad, Pakistan

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Kinetics of Vinyl Acetate Biodegradation by Pseudomonas fluorescens PCM 2123

for growth studies. J Bacteriol. 1959;77:410-413. https://jb.asm.org/content/jb/77/4/410.full.pdf . [10] Simon P, Filser JG, Bolt HM. Metabolism of pharmacokinetics of vinyl acetate. Arch Toxicol. 1985;57:191-195. https://link.springer.com/content/pdf/10.1007/BF00290886.pdf . [11] Bogdanffy MS, Sarangapani R, Plowchalk DR, Jarabek A, Andersen ME. A biologically based risk assessment for vinyl acetate-induced cancer and noncancer toxicity. Toxicol Sci. 1999;51 : 19-35. DOI: 10.1093/toxsci/51.1. [12] Bogdanffy MS, Taylor ML. Kinetics of nasal

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An experimental study on drying characteristics and kinetics of figs (Ficuscarica)

References 1. Akpinar, E.K., Bicer, Y. & Yildiz, C. (2003). Thin layer drying of red pepper. J. Food Eng. 59(1), 99-104. DOI: 10.1016/ s0260-8774(02)00425-9. 2. Babalis, S.J., Papanicolaou, E., Kyriakis, N. & Belessiotis, V.G. (2006). Evaluation of thin-layer drying models for describing drying kinetics of figs (Ficus carica). J. Food Eng. 75(2), 205-214. DOI: 10.1016/j.jfoodeng.2005.04.008. 3. Vega, A., Uribe, E., Lemus, R. & Miranda, M. (2007). Hot-air drying characteristics of Aloe vera (Aloe barbadensis

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Equilibrium and kinetics studies for the adsorption of Ni2+ and Fe3+ ions from aqueous solution by graphene oxide

. Hazard. Mater. 183, 233–241. http://dx.doi.org/10.1016/j.jhazmat.2010.07.016 8. Prabakaran, R. & Arivoli, S. (2012). Adsorption kinetics, equilibrium and thermodynamic studies of Nickel adsorption onto Thespesia Populnea bark as biosorbent from aqueous solutions. Euro. J. Appl. Eng. Sci. Res. 1(4), 134–142. 9. Hasar, H. (2003). Adsorption of nickel(II) from aqueous solution onto activated carbon prepared from almond husk. J. Hazard. Mater. B97, 49–57. DOI: 10.1016/s0304-3894(02)00237-6. 10. Ravichandran, T. & Arivoli, S. (2013). Adsorption of Fe

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Kinetics studies and mechanism evolution of the epoxidation of styrene over nanoporous Au doped TS-1

). Titanium Silicalite-2: Synthesis, Characterization and Catalytic Properties. Appl. Catal. 58 L1. Reddy, J. S. & Kumar, R (1992). Crystallization kinetics of a new titanium silicate with MEL structure (TS-2). Zeolites , 12, 95-100. DOI:10.1016/0144-2449(92)90017-J. Huybrechts, D.R, Bruycker, L. D. & Jacobs, P. A. (1990). Oxyfunctionalization of alkanes with hydrogen peroxide on titanium silicalite. Nature , 345, 240-242. DOI:10.1038/345240a0. Reddy, R. S., Reddy, J. S., Kumar, R., Kumar, P

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