Results 71 to 80 of about 3,730 (229)
Journal of Field Robotics, EarlyView.ABSTRACT People with physical disabilities face significant mobility challenges while climbing uneven surfaces and staircases. In these circumstances, traditional wheelchairs do not provide stable, safely controlled mobility, underscoring the importance of building superior stair‐climbing wheelchairs for both medical and infrastructure purposes.
Gopisetti Manikanta +10 more
wiley +1 more source
Jixie chuandong, 2011 Compared with crank and slider mechanism,the ultimate output component with crank toggle as a combination transmission mechanism has some better characteristics for transmitting movement and force.The relation of position,speed and acceleration between ...
王粟 +4 more
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The influence of cutting height on arthropods in farm grassland
Insect Conservation and Diversity, EarlyView.Mowing at a cutting height of 13 cm slightly reduced the immediate negative impact of mowing compared to mowing at a height of 7 cm. Medium‐term effects overrode this benefit: the number of vegetation‐dwelling arthropods remained strongly reduced two and four weeks after mowing, regardless of the cutting height.
Lea von Berg +6 more
wiley +1 more source
Mechanism Design and Kinematics Analysis of Adaptive Rehabilitation Apparatus for Human Knee Joint
Jixie chuandong, 2020 The knee adaptive rehabilitation apparatus is designed， which consists of a swinging guide linkand a crank slider mechanism.According to ergonomics，the size range of the shank in the adaptive rehabilitation apparatus is determined by analyzing the motion
Tongtong Zhong +4 more
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Energy Reports, 2020 Nowadays, attractions are focused on Stirling engines because of their low noise, external combustion, and the possibility of employing solar energy. These engines can be designed and applied in cases of low or high-temperature differences, as needed ...
A. Rahmati +3 more
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Characterisation of human hair follicle development
Journal of Anatomy, EarlyView.Schematic of hair follicle development in human skin. Hair follicle primordia of similar sizes, but different densities, are laid out across the skin. The distinction between terminal and vellus hair sites is not obvious at early stages of hair follicle development.
Zoe R. Sudderick +4 more
wiley +1 more source
New Phytologist, EarlyView.Tip Quantification enables quantitative analyses over versatile selections of regions of interest. Summary Cell polarity and tip growth rely on the dynamic spatial organization of signaling and structural components. Quantitative characterization of these spatiotemporal dynamics is critical for understanding polarized cell growth, yet manual ...
Jingzhe Guo +7 more
wiley +1 more source
Jixie chuandong, 2005 In the paper, a new method designing slider-crank mechanism is put forward. By solving a simple system of linear equation or utilizing the analytical formula given in the paper, the dimensions of slider-crank mechanism which meets the demands of quick ...
李建功, 王家金
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Periodontology 2000, EarlyView.Abstract Background Extracellular vesicles (EVs), especially exosomes, are nanoparticles increasingly recognized as key regulators of intercellular communication in both physiological and pathological aspects. Despite rapid progress, inconsistencies in nomenclature, isolation, and characterization continue to restrict translational advancement.
Paras Ahmad +6 more
wiley +1 more source
Dynamic Behavior Analysis of the Slider Crank Linkage using ANSYS Workbench and MATLAB Program
Wasit Journal of Engineering Sciences, 2013 This paper is concerned with the study of the kinematic and kinetic analysis of a slider crank linkage using D'Alembert's principle. The links of the considered mechanism are assumed to be rigid.
Nabil N. Swadi
doaj +1 more source