Results 61 to 70 of about 1,283 (252)
Modal properties of a multi-stage power-split planetary gear set
Advances in Mechanical Engineering, 2017 Planetary gears are recognized as one of the most effective forms of power transmission. A dynamic model of an N -stage power-split planetary gear set is proposed in this article.
Lina Zhang +4 more
doaj +1 more source
Declines in the diversity of fish represented in British domestic recipes over the past 100 years
People and Nature, EarlyView.Abstract Fish and shellfish are nutritionally important foods, yet consumption in many high‐income countries remains low and concentrated on a narrow set of environmentally costly species. In the United Kingdom, fish consumption is dominated by a small group of fish, the ‘Big Five’, which is often treated as an inevitable outcome of supply, convenience
Ruth H. Thurstan
wiley +1 more source
Design and Experiment of Segmented Variable Transmission Ratio Mechanism for Rice Pot-mat Seedling Transplanting [PDF]
中国水稻科学【Objective】To address the problem in single-planetary-wheelset transplanter mechanisms where the seedling picking and placing motions cannot be simultaneously optimized—thereby degrading transplanting quality—we propose a segmented variable gear-ratio ...
YU Jiashuo, ZHOU Yuzhu, HUANG Jiangjun, XIE Shimin, CHEN Jianneng, SUN Liang
doaj +1 more source
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
Journal of Field Robotics, EarlyView.ABSTRACT The architecture of apple orchards can be converted to easier operation by implementing the use of a low‐cost, tractor‐mounted, dual manipulator based on a robotic harvesting system with lower degrees of freedom (DoF). To accurately avoid injuries by detecting apples, an efferent, real‐time vision system that includes a new gripping mechanism ...
R. M. Rasika D. Abeyrathna +3 more
wiley +1 more source
Multi‐Platform Deployments of Low‐Cost Devices for Cetacean Passive Acoustic Monitoring
Remote Sensing in Ecology and Conservation, EarlyView.Recent advances in affordable, user‐friendly devices offer new opportunities to overcome cost constraints of underwater passive acoustic monitoring (PAM) and expand acoustic data collection. In this study, we deployed low‐cost acoustic recorders and underwater cameras across a range of platforms in the Western Mediterranean, including fishing gear ...
Greta Jankauskaite +8 more
wiley +1 more source
A Scenario Tool for Sustainability Transformation in Fisheries and Beyond
Sustainable Development, EarlyView.ABSTRACT The urgency to find sustainable management solutions intensifies with increasing natural resource scarcity. Resource sectors are usually characterized by diverse resource users. We developed a structured scenario tool designed to quantitatively assess policy options for achieving sustainability, accounting for ecological, economic and ...
Marie‐Catherine Riekhof +5 more
wiley +1 more source
Jixie chuandong, 2012 According to the load sharing mechanism of the series planetary gear train and consideration the effects of manufacturing errors,assembly errors,mesh stiffness and the clearance floating coefficient,the analysis model is set up.The load sharing ...
刘文彬, 刘更, 李阳
doaj
National Policy Coherence Counts for Reducing Inequality in Global Climate and Development Agendas
Sustainable Development, EarlyView.ABSTRACT International institutions promote policy coherence as crucial to the effective and fair implementation of global sustainability agendas, though the evidence for its benefits is slim. We present here the first systematic cross‐country dataset on the consequences of national government efforts to promote policy coherence for vulnerable groups ...
Katherine Browne +10 more
wiley +1 more source
Investigations on Spin Power Losses Generated in a Planetary Gear Set Using Thermal Network Method
LubricantsThis paper introduces an experimental approach to study the distribution of power losses in an oil jet-lubricated planetary gear set, with the aim of increasing the efficiency of these gearboxes.
Marie Winger +5 more
doaj +1 more source