Results 61 to 70 of about 1,507,269 (398)
Reevaluating the Activity of ZIF‐8 Based FeNCs for Electrochemical Ammonia Production
Advanced Functional Materials, EarlyView.Though receiving much attention, the field of electrochemical nitrogen reduction reaction (eNRR) to ammonia is marked by doubts about whether this reaction is possible in aqueous media. This work sheds light on this question for iron single‐atom on N‐doped carbon (FeNC) catalysts—a class of well‐known catalysts that is also worth testing for the sister
Caroline Schneider +6 more
wiley +1 more source
THIN-WALLED FOUR-POINT CONTACT BALL BEARING CONTACT FINITE ELEMENT ANALYSIS
Jixie qiangdu, 2018 Based on the ANSYS finite element software,the method of dividing the contact area of the four point contact ball bearing is proposed. Establish a uniform thin four point contact ball bearing 1/2 single rolling and ring and the bearing finite element ...
WU Li +3 more
doaj
Research on Impact Resistance of Double-Decker Ball Bearing Based on Bionic Loofah Structure
LubricantsCompared to single-decker ball bearings, double-decker ball bearings offer advantages such as higher speed limits, greater load capacity, and better impact performance.
Jing Hu +7 more
doaj +1 more source
International Journal of Distributed Sensor Networks, 2022 As the most important segment of the spindle unit angular contact ball bearing, the preload significantly influences the bearing characteristics. Thus, the thermal-induced preload derived from the thermal expansion of spindle unit components also affects
Yanfang Dong, Feifan Chen, Ming Qiu
doaj +1 more source
Performance of Bearing Ball Defect Classification Based on the Fusion of Selected Statistical Features [PDF]
, 2022 Zahra Mezni +3 more
openalex +1 more source
Advanced Functional Materials, EarlyView.Bio‐based and (semi‐)synthetic zwitterion‐modified novel materials and fully synthetic next‐generation alternatives show the importance of material design for different biomedical applications. The zwitterionic character affects the physiochemical behavior of the material and deepens the understanding of chemical interaction mechanisms within the ...
Theresa M. Lutz +3 more
wiley +1 more source
Jixie qiangdu, 2016 Due to the center deviation among wellhead,rotary table and crown block,the deep groove ball bearing of rotary control head（ RCH） is affected by large lateral load.
WANG GuoRong +3 more
doaj
Bearing transmits rotary and axial motion [PDF]
, 1964 A low friction, two-component bearing comprised of a pair of ball-bearing races for transmitting rotary motion and an inner series of ball bearing assemblies for transmitting axial motion is described and should be useful in mechanisms such as stress ...
Dow, N. F., Peters, R. W.
core +1 more source
Operating limits for acoustic measurement of rolling bearing oil film thickness [PDF]
, 2003 An ultrasonic pulse striking a thin layer of liquid trapped between solid bodies will be partially reflected. The proportion reflected is a function of the layer stiffness, which in turn depends on the film thickness and its bulk modulus.
Bruce W Drinkwater +5 more
core +2 more sources
Effect of ball bearing misalignment on dynamic characteristics of rotor system
, 2021 A theoretical model with 5 degrees of freedom (DOF) is derived for a rigid rotor system supported by two ball bearings considering the changes of the bearing stiffness due to misalignment.
Baogang Wen +3 more
semanticscholar +1 more source