Results 31 to 40 of about 951 (221)
Seismic analysis and design of tunnels within fault ground: A review
Deep Underground Science and Engineering, EarlyView.The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang +6 more
wiley +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.A lightweight hybrid backpack integrating SC‐TENGs and R‐EMGs harvests biomechanical energy during walking. With a low activation speed of 3 km h−1 and a high specific power of 0.18 W kg−1, it enables self‐powered field safety management. The power backpack refers to an energy‐harvesting solution engineered to mitigate battery reliance in wearable ...
Jie Chen +6 more
wiley +1 more source
Journal of Addictions &Offender Counseling, EarlyView.ABSTRACT This study analyzed whether religious or spiritual affiliation and therapy enrollment protect against symptoms meeting Major Depressive Disorder criteria beyond demographic, Internet addiction, and described therapy enrollment. Findings illustrated one risk factor and one protective factor associated with experiencing symptoms that meet Major ...
Lindsay A. Lundeen, John R. McCall
wiley +1 more source
Jixie chuandong, 2013 The existence of the backlash can generate impact between teeth,which influences the stability of gear transmission.In order to comprehensive research on the influence of backlash on the gear vibration characteristics,the influences of backlash on the ...
李英明 +4 more
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Journal of International Development, EarlyView.ABSTRACT Field visits are common phenomena with non‐governmental organisations in Uganda. During these visits, Ugandan national staff guide visitors on series of meetings and interactions in the field. Following an actor‐oriented approach and drawing on ethnographic data on 14 field visits, this paper understands the field visit as a microcosm for the ...
Caspar Edward Swinkels
wiley +1 more source
Forecasting the impact of food‐provisioning and other stressors on a marine top‐predator population
Oikos, EarlyView.Wildlife tourism can alter animal behavior, affect vital rates and diminish population viability but its impact in the context of other human‐ and environmental disturbances, remain largely unstudied. Using simulation models and leveraging a robust long‐term dataset spanning eight years, we evaluated the contribution of wildlife feeding, in the context
Valeria Senigaglia +4 more
wiley +1 more source
Polymer Composites, EarlyView.Schematic illustration of the experimental procedure of the specimens. ABSTRACT This research work investigated the effect of the cyclic thermo‐hygrometric aging regime between −20°C and +40°C with 0–400 cycles on the reciprocating tribological properties of fused deposition modeling (FDM) printed polylactic acid (PLA) and the same material reinforced ...
Sinan Fidan +5 more
wiley +1 more source
Gear Defect Modeling of a Multiple-Stage Gear Train
Modelling and Simulation in Engineering, 2011 This study demonstrates the transient and steady state dynamic loading on teeth within a two-stage gear transmission arising from backlash and geometric manufacturing errors by utilizing a nonlinear multibody dynamics software model.
Andrew Sommer, Jim Meagher, Xi Wu
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Journal of Field Robotics, EarlyView.ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang +3 more
wiley +1 more source
Jixie chuandong, 2019 The meshing backlash of cycloidal-pin gear has a great influence on the meshing transmission performance and motion accuracy of RV reducer, so the accurate calculation of meshing backlash is an important content in the study of contact characteristics of
Tianxing Li +4 more
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