Results 11 to 20 of about 789 (187)
On the conflict between science and ethics: the case of the moggel, Labeo umbratus (Teleostei: Cyprinidae) from South Africa. [PDF]
J Fish BiolAbstract Recent molecular evidence showed that Labeo umbratus comprises two allopatrically distributed genetic lineages, a northern lineage confined to the Orange‐Vaal River system where this species was originally described and a southern lineage with three geographically separated haplogroups (western, central and eastern) distributed across multiple
Ramoejane M +3 more
europepmc +2 more sources
Effect of Multifactor Interaction on the Accuracy of RV Reducers
International Journal of Rotating Machinery, Volume 2023, Issue 1, 2023., 2023 The rotary vector (RV) reducer is one of the widely used mechanical components in industrial systems, specifically in robots. The stability of the transmission performance of the RV reducer is crucial for the efficient operation of industrial equipment.
Zihui Wang +6 more
wiley +1 more source
Simulation and Compensation of Axial Geometric Errors for Cycloidal Gears Based on Form Grinding
Mathematical Problems in Engineering, Volume 2022, Issue 1, 2022., 2022 To increase quality, reduce cycloidal gear noise, and avoid unnecessary vibration and shock, a compensation of axial geometric errors method is proposed based on the cycloidal gear form grinding. In the process of machining cycloidal gears, the relative position relationship between the grinding wheel and workpiece is affected by geometric errors of ...
Chuang Jiang +4 more
wiley +1 more source
Condition‐Based Monitoring on High‐Precision Gearbox for Robotic Applications
Shock and Vibration, Volume 2022, Issue 1, 2022., 2022 This work presents a theoretical and experimental study regarding defect detection in a robotic gearbox using vibration signals in both cyclostationary and noncyclostationary conditions. The existing work focuses on inferring the health of the robot during operation with little regard toward the defective element of the components.
Mohamad Amin Al Hajj +3 more
wiley +1 more source
Journal of Electrical and Computer Engineering, Volume 2022, Issue 1, 2022., 2022 In order to solve the optimal cascade mobile path selection problem when mobile industrial robots repair network coverage holes, a cascade mobile path selection optimization method considering the number and energy of intermediate cascade nodes is proposed.
Ya-Hong Zhu, Jian Jiao, Wei Liu
wiley +1 more source
Design and Investigation of an Asymmetric Logarithmic Spiral Gear Drive
Applied Bionics and Biomechanics, Volume 2022, Issue 1, 2022., 2022 Sliding on gear teeth working surfaces has negative effects on the performances of gears, such as tooth surface wear, pitting, etc. In order to reduce the gear sliding during high speed and heavy load, a new type of pure rolling gear, named as an asymmetric logarithmic spiral gear, is designed referring to the characteristics of the Issus planthopper ...
Zenghuang He +5 more
wiley +1 more source
Mathematical Problems in Engineering, Volume 2022, Issue 1, 2022., 2022 The working conditions (i.e., gas content, working pressure, and working temperature) of oil in the actual hydraulic system are always in a dynamic process, which will cause the basic properties of oil (i.e., density, absolute viscosity, and effective bulk modulus) to change and further generate changes of the flow characteristics in the straight ...
Guoguo Wu +4 more
wiley +1 more source
Research on adaptive cruise control algorithm considering road conditions
IET Intelligent Transport Systems, Volume 15, Issue 12, Page 1478-1493, December 2021., 2021 Abstract As one of the most important ADAS systems, traditional adaptive cruise control is only suitable for relatively simple working conditions such as expressways, and it is difficult to deal with complex traffic environment and road working conditions.
Zhi Yang, Rui He, Sumin Zhang, Jian Wu
wiley +1 more source
Research on a special scarifier mechanism with finite element analysis method [PDF]
, 1996 —A scarifier mechanism with rotary tillage and antirotary grubbing is proposed for inducing the power of tillage in hardens soil. MAT147 material modal is amended by experimental method and soil high-speed cutting finite element modal is build through ...
Gao, Jie +4 more
core +7 more sources
Deformation Investigations on the Flexspline with the Conic Curve Combined Cam Wave Generator
Mathematical Problems in Engineering, Volume 2021, Issue 1, 2021., 2021 The deformation of the flexspline and the meshing quality are largely determined by the profile of a wave generator. The wave generator with a combined profile can effectively reduce or improve the deformation stress and strain of the flexspline for improving the transmission efficiency and reducing wear or noise.
Shuyan Wang +3 more
wiley +1 more source