Results 61 to 70 of about 251,598 (308)

Research of NC Gear-hobbing Machining and Error Compensation

open access: yesJixie chuandong, 2015
According to the principles of various gear profile generation and gear generating error,the motion control structure of NC hobbing system for gear machining is optimized.
Jia Dongsheng, Zhao Jiali
doaj  

Hierarchical Strain‐Modified Medium‐Entropy Carbide Ceramics Exhibit Exceptional Ablation Resistance up to 2400°C

open access: yesAdvanced Science, EarlyView.
A novel strategy is developed by doping reduced graphene oxide (rGO) into a (HfZrTi)C medium‐entropy ceramic. This induces a hierarchical strain modification mechanism, synergistically inhibiting crack propagation at the microscale and dissipating stress at the mesoscale.
Junyi Xiao   +8 more
wiley   +1 more source

Catch per unit efforts and impacts of gears on fish abundance in an oxbow lake ecosystem in Eastern India [PDF]

open access: yes, 2017
Background: Oxbow lakes are abundant in indigenous fishes, but they are subject to unsustainable fishing practices, potential overexploitation, and indiscriminate use of fine-meshed fishing gear.
Dipankar Ghosh1, Jayanta Kumar Biswas2*,
core  

基于ANSYS的采煤机截割部传动系统齿轮疲劳分析

open access: yesJixie chuandong, 2014
Shearer service life and reliability of the gear cutting unit has the close relation.Based on ANSYS,the dynamics and fatigue analysis of the third stage gear of minimum safety coefficient of a certain type of shearer cutting unit transmission system are ...
赵丽娟, 杨勇, 李明昊
doaj  

Encapsulating Textiles with Dynamic Covalent Networks for Sustainable and Efficient Oil Spill Cleanup

open access: yesAdvanced Science, EarlyView.
By encapsulating industrially relevant fabrics with dynamic imine networks, we show that the resulting composites exhibit exceptional oil absorbtion capability and chemical recyclability. It is poised for sustainable oil spill cleanup. ABSTRACT The development of high‐performance sorbents for oil spill remediation is highly desirable, which now calls ...
Changyi You   +9 more
wiley   +1 more source

Analisa Penyebab Kerusakan pada Differential Heavy Duty Truck HD 785-5 [PDF]

open access: yes, 2016
Heavy Duty Truck (HD) 785-5 adalah unit pengangkut muatan (hauling) yang menggunakan tipe differential conventional. Dengan tipe ini apabila unit dalam keadaan medan yang sangat berat atau biasa dibilang keadaan jalan licin maka differential akan membuat
Mardian, R. L. (Rasma)
core   +1 more source

Research on Dynamic Performance of Locomotive Wheelset Driving Unitwith Gear Teeth Cracks

open access: yes机车电传动, 2016
In order to simulate the influences of gear teeth cracks on the dynamic performance of the wheelset driving system, withthe multi-body dynamic software SIMPACK, the vibration model of gear-pair meshing was established, which, meanwhile, was appliedto the
FAN Jiafeng   +3 more
doaj  

An On‐Demand Neuromorphic Vision System Enabled by a Multi‐Paradigm Neuromorphic Device and Hierarchical Reconfigurability Designed from Device to System Level

open access: yesAdvanced Science, EarlyView.
An on‐demand ultra‐reconfigurable intelligent vision system with hierarchical reconfigurability from device to system levels is demonstrated. Through co‐design of a multi‐paradigm device, reconfigurable circuits, and adaptive system architecture/algorithms, the system enables seamless switching among spiking, non‐spiking, neuromorphic imaging (NI), and
Biyi Jiang   +7 more
wiley   +1 more source

Новая серия планетарных мотор-редукторов типоразмеров 6МП-31,5; 6МП-40; 6МП-50 [PDF]

open access: yes, 2013
В статье представлена новая серия планетарных мотор-редукторов типоразмеров 6МП- 31,5; МП- 40; 6МП- 5The article presents the new series of planetary gear unit sizes 6MP-5, 31; 6MP-40; 6MP-
Фей, В. М., Феськов, А. В.
core  

Optimization Design of Pumping Unit Reversing Mechanism based on Output Swing Angle Analysis

open access: yesJixie chuandong, 2019
Aiming at the problem that the output angle of the elliptical gear planetary gear train reversing mechanism with small beam pumping unit is small and can not meet the long stroke demand, the influencing factors of the output swing angle of the mechanism ...
Liu Yongping Li Dawei Dong Changbin
doaj  

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