systems with piezofilm as pressure transducers for bedomning of ball inside out at different ball games

• 1. 球类比赛中界外球的数字检测系统 [P] . 中国专利： CN1824352B . 2010.04.28
• 2. 球类比赛中界外球的数字检测系统 [P] . 中国专利： CN100490928C . 2009.05.27
• 3. PNEUMATIC PRESSURE INDICATING ELEMENT FOR BALL FOR BALL GAME FILLED WITH AIR AND BALL FOR BALL GAME EQUIPPED WITH PNEUMATIC PRESSURE INDICATING ELEMENT [P] . 世界知识产权组织专利： WO2008029487A1 . 2008-03-13

  机译： 装有空气的球类游戏用球的气压指示元件和装有气压类的显示球的球用气压指示元件

• 4. Ball playing device for two game parties, has ball collision surface for reflection of match-ball and hollow section, which is closed inside ball playing device, for creation of three-dimensionally formed ball reflection options [P] . 德国专利： DE102006015302A1 . 2007-10-04

  机译： 用于两个游戏方的打球装置，具有用于碰撞比赛球和空心部分的撞球表面，该撞球表面封闭在打球装置内部，用于创建三维形成的球反射选项

• 5. signalling systems bedoemning foer of ball inside out at the ball game [P] . SE457604B . 1989-01-16

  机译： 信号系统在球比赛中将球从内到外注视

• 1. Air flow patterns and noise analysis inside high speed angular contact ball bearings [J] . 翟强, 闫柯, 张优云, 中南大学学报（英文版） . 2015,第009期
• 2. THE INFLUENCE RULE OF GEOMETRIC PARAMETERS ON THE CLOSURE OF INSIDE CAVITY OF THE SKEW ROLLED STEEL BALL BY FLOATING PRESSURE METHOD [C] . Chang Shu, Yingxiang Xia, Xuedao Shu, ASME international mechanical engineering congress and exposition . 2019
• 3. An investigation of Scholar -Baller and Non Scholar -Baller Division I football student -athletes' academic, athletic, intrinsic motivation and athletic identity. [D] . Rasmussen, Janet M. 2009
• 4. Left-handedness and time pressure in elite interactive ball games [O] . Florian Loffing 2017
• 5. Multifaceted Simultaneous Load Balancing in DHT-based P2P systems: A new game with old balls and bins [O] . Aberer, Karl, Datta, Anwitaman, Hauswirth, Manfred 2005

• 1. Air flow patterns and noise analysis inside high speed angular contact ball bearings [J] . 翟强 ,闫柯 ,张优云 . 中南大学学报 . 2015,第009期
• 2. Effect of Particle Phase Volume, Shape and Liquid Phase Concentrations on Rheological Properties of Large Particulate-Liquid Model Food Systems by Using Ball Measuring System [J] . Chlharu Inoue ,Peter Versluis ,Pablo Coronel . 化学与化工 . 2013,第007期
• 3. Research on the Internationalization Trend for the Development of Worldwide Competitive Ball Games and Our Countermeasures [J] . Yixin Ma . International Journal of Technology Management . 2015,第008期
• 4. Uniqueness of Positive Radial Solutions for a Class of Semipositone Systems on the Exterior of a Ball [J] . Alhussein Mohamed ,Khalid Ahmed Abbakar ,Abuzar Awad . 应用数学（英文） . 2021,第3期
• 5. 微机电系统双压电薄膜压力传感器 [C] . 孙博华 ,张睿 . 全国第一届压电和声波理论及器件技术研讨会 . 2004
• 6. 两种不同材质的乒乓球对男子单打比赛相持段技战术影响的研究 [A] . 张梦涵 . 2019