« Penser base-ball » by Peter Marquis

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Aerodynamic Analysis and Training Research of an S-Shaped Arc Ball Based on Hydrodynamics by Pinxin Si

“…The aerodynamic analysis and training optimization method of the S-shaped arc ball based on ant colony optimization has sped up the intelligent training system of Chinese football tactics.…”
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Connectivity-Based Parcellation of the Cortical Mantle Using q-Ball Diffusion Imaging by Muriel Perrin, Yann Cointepas, Arnaud Cachia, Cyril Poupon, Bertrand Thirion, Denis Rivière, Pascal Cathier, Vincent El Kouby, André Constantinesco, Denis Le Bihan, Jean-François Mangin

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Ameliorated Chameleon Algorithm-Based Shape Optimization of Disk Wang–Ball Curves by Yan Liang, Rui Yang, Xianzhi Hu, Gang Hu

“…The shape design and optimization of complex disk curves is a crucial and intractable technique in computer-aided design and manufacturing (CAD/CAM). Based on disk Wang–Ball (DWB) curves, this paper defines a novel combined disk Wang–Ball (CDWB) curve with constrained parameters and investigates the shape optimization of CDWB curves by using the multi-strategy ameliorated chameleon swarm algorithm (MCSA). …”
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Preliminary Studies on the Development of Meat Balls by JO Igene, KS Akinjobi, SE Evivie

“…Three different types of meat balls: Cured Spiced Fried Ball (CSFB), Uncured Spiced Fried Ball (USFB) and Uncured Unspiced Fried Ball (UUFB) were developed all from beef, with variation in spices used and weighing from 17.67g to 18.03g respectively. …”
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Preliminary Studies on the Development of Meat Balls by JO Igene, KS Akinjobi, SE Evivie

“…Three different types of meat balls: Cured Spiced Fried Ball (CSFB), Uncured Spiced Fried Ball (USFB) and Uncured Unspiced Fried Ball (UUFB) were developed all from beef, with variation in spices used and weighing from 17.67g to 18.03g respectively. …”
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On rational approximation in a ball in ℂN by P. W. Darko, S. M. Einstein-Matthews, C. H. Lutterodt

“…We study rational approximations of elements of a special class of meromorphic functions which are characterized by their holomorphic behavior near the origin in balls in ℂN by means of their rational approximants. …”
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Friction Torque in Miniature Ball Bearings by Denis Cojocaru, Gelu Ianuș, Vlad Cârlescu, Bogdan Chiriac, Dumitru Olaru

“…The problem of estimation the friction torque in operating miniature ball bearings lubricated with oil or grease is a complex one. …”
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Generalized Kalman-Yakubovich-Popov Lemma Based I-PD Controller Design for Ball and Plate System by Shuichi Mochizuki, Hiroyuki Ichihara

“…This paper proposes a PID controller design method for the ball and plate system based on the generalized Kalman-Yakubovich-Popov lemma. …”
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A Vibration Model of Ball Bearings with a Localized Defect Based on the Hertzian Contact Stress Distribution by Fanzhao Kong, Wentao Huang, Yunchuan Jiang, Weijie Wang, Xuezeng Zhao

“…To study the vibration mechanism of ball bearings with localized defects, a vibration model of a ball bearing based on the Hertzian contact stress distribution is proposed to predict the contact force and vibration response caused by a localized defect. …”
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Direction of Groove Detection for Wear Image of Four-Ball Friction Test Based on Gray Difference of Inclination Angle by Mei Xiao, Ying Zhang, Haiming Wang, Lei Zhang

“…In order to avoid subjective estimation of the direction of groove by using a tester in the four-ball friction test, an automatic wear angle detection method based on gray difference of inclination angle is proposed in this paper. …”
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Smoothing Connected Ball Bézier Curves by Energy Minimization by Juncheng Li, Chengzhi Liu

“…In this paper, we aim at smoothing two connected ball Bézier curves from Cr−1 to Crr≥1 by minimizing the energies of the curves. …”
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Existence Results for Polyharmonic Boundary Value Problems in the Unit Ball by Sonia Ben Othman, Habib Mâagli, Malek Zribi

“…Here we study the polyharmonic nonlinear elliptic boundary value problem on the unit ball B in ℝn(n≥2)(−△)mu+g(⋅,u)=0, in B (in the sense of distributions) limx→ξ∈∂B(u(x)/(1−|x|2)m−1)=0(ξ). …”
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Biomechanics of Heading a Soccer Ball: Implications for Player Safety by Charles F. Babbs

“…To better understand the risk and safety of heading a soccer ball, the author created a set of simple mathematical models based upon Newton�s second law of motion to describe the physics of heading. …”
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Diffusion Maps Clustering for Magnetic Resonance Q-Ball Imaging Segmentation by Demian Wassermann, Maxime Descoteaux, Rachid Deriche

“…On more complex data with crossings, we show that our ODF-based method succeeds to separate fiber bundles and crossing regions whereas the DT-based methods generate artifacts and exhibit wrong number of clusters. …”
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Finite Element and Multibody Dynamics Analysis of a Ball Mill Glass Crusher by Jihad Rishmany, Rodrigue Imad

“…For this purpose, a glass crusher machine based on the ball mill concept is designed to transform glass waste into powder of 2 mm particle size. …”
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Performance Evaluation of Polygonal and Cylindrical Ball Mills Using Discrete Element Method by Mathew Ndeto Kyalo, James Kuria Kimotho, Hiram Muriithi Ndiritu

“…ABSTRACT Ball mills are frequently utilized in the chemical and mineral processing industries to reduce the size of particles. …”
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Effects of milling temperature and time on phase evolution of Ti-based alloy by Kristaly F., Sveda M., Sycheva A., Miko T., Racz A., Karacs G., Janovszky D.

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Monitoring of ball bearings via vibration analysis and envelope technique for predictive maintenance purposes by Adiel Pessoa, Paulo Cezar Büchner

“…In this case, frequency graphs based in the signals of the bearings inner race will be generated, through a new signal acquisition system, using of envelope analysis by frequency filters, Hilbert Transform and Fast Fourier Transform (FFT). …”
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Tactical Analysis of Table Tennis Video Skills Based on Image Fuzzy Edge Recognition Algorithm by Weiqiang Li

“…To improve the effect of table tennis tactical analysis, this study proposed a table tennis video tactical analysis method based on image fuzzy edge recognition algorithm. …”
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