Results 61 to 70 of about 345,833 (352)

Gravity and inertial load adaptive control of wall-climbing robot

The Journal of Engineering, 2018
The five-degree-of-freedom double-legged wall-climbing robot is the most straightforward structure with the promising application because the minimum degree-of-freedom of the foot-type climbing robot with continuous movement and obstacle-overcoming ...
Shuang Dong
doaj   +1 more source

Kinematic study of planetary nebulae in NGC 6822 [PDF]

, 2014
By measuring precise radial velocities of planetary nebulae (which belong to the intermediate age population), H II regions, and A-type supergiant stars (which are members of the young population) in NGC 6822, we aim to determine if both types of ...
Flores-Durán, S. N., García-Rojas, J., Hernández-Martínez, L., Peña, M., Ruiz, M. T.   +4 more
core   +1 more source

Structure Formation in Butterfly Scales: Interplay of Genetic Control, Mechanical Instabilities, and Dynamic Material Properties

Advanced Functional Materials, EarlyView.
Butterfly wing scales are intricate cuticular functional nanosctructures. This perspective suggests that spatially varying material properties, cytoskeletal constraints, and growth‐driven mechanical instabilities shape the resulting nanoscale architectures created from single cells.
Anupama Prakash, Victoria Lloyd, Yi Yang, Anna‐Lee Jessop, Anthony McDougal, Primož Pirih, Guillaume Duclos, Andrew Parnell, Mathias Kolle, Nicola J. Nadeau, Bodo D. Wilts   +10 more
wiley   +1 more source

Design and Test of the 1LFT-450D Variable Width Reversible Plough with Resistance Reduction Function

Agriculture
To address the issues of high working power consumption and poor structural stability of current ploughing equipment under conditions of straw coverage and heavy clay soil, a 1LFT-450D variable width reversible plough (VWRP) with resistance reduction ...
Aolong Geng, Xinyang Lou, Jun Wang, Kui Zhang, Yu Deng, Qi Wang, Jinwu Wang   +6 more
doaj   +1 more source

Analysis, Design, and Experimental Research of a Novel Wheelchair-Stretcher Assistive Robot

Applied Sciences, 2019
Life care for disabled or semi-disabled elderly has become an increasingly common problem in society. In this paper, a novel wheelchair-stretcher assistive robot, which can meet the physiological needs of patients, is investigated and designed.
Lingfeng Sang, Masayuki Yamamura, Fangyan Dong, Zhongxue Gan, Jianzhong Fu, Hongbo Wang, Yu Tian   +6 more
doaj   +1 more source

Analysis of standing vertical jumps using a force platform [PDF]

, 2001
A force platform analysis of vertical jumping provides an engaging demonstration of the kinematics and dynamics of one-dimensional motion. The height of the jump may be calculated (1) from the flight time of the jump, (2) by applying the impulse–momentum
Harman E. A., Major J. A., Nicholas P. Linthorne   +2 more
core   +1 more source

Optoelectronic Control of Redox Dynamics in POM Memristors for Noise‐Resilient Speech and Hardware‐Level Motion Recognition

Advanced Functional Materials, EarlyView.
Optoelectronic control of redox‐active polyoxometalate clusters in polymer matrices yields hybrid memristors with switchable volatile and non‐volatile modes, enabling reservoir‐type in‐sensor optical preprocessing and stable multilevel synapses for multimodal neuromorphic computing, including noise‐tolerant audiovisual keyword recognition and hardware ...
Xiangyu Ma, Ziyu Lv, Guohua Zhang, Zhongyue Xu, Yongbiao Zhai, Haiming Huang, Qiyan Zhang, Xiaojin Zhao, Yan Wang, Ye Zhou, Ziyu Xiong, Guanglong Ding, Wentao Xu, Su‐Ting Han   +13 more
wiley   +1 more source

Design Strategies and Emerging Applications of High‐Performance Flexible Piezoresistive Pressure Sensors

Advanced Functional Materials, EarlyView.
Flexible piezoresistive pressure sensors underpin wearable and soft electronics. This review links sensing physics, including contact resistance modulation, quantum tunneling and percolation, to unified materials/structure design. We highlight composite and graded architectures, interfacial/porous engineering, and microstructured 3D conductive networks
Feng Luo, Artur Ciesielski, Paolo Samorì   +2 more
wiley   +1 more source

Kinematics Analysis of a Six-axis Welding Manipulator

Journal of Harbin University of Science and Technology, 2019
Given that of the actual environment of the welding site is not the same, and the problem that the traditional welding robot can not fully adatp to a variety of different welding environment, we put forward a design of a six-axis welding robot.
WNAG Weibing, ZHANG Ji, XU Qian
doaj   +1 more source

Working and Assembly Modes of the Agile Eye [PDF]

, 2006
This paper deals with the in-depth kinematic analysis of a special spherical parallel wrist, called the Agile Eye. The Agile Eye is a three-legged spherical parallel robot with revolute joints in which all pairs of adjacent joint axes are orthogonal. Its
Bonev, Ilian, Chablat, Damien, Wenger, Philippe   +2 more
core   +2 more sources