Results 11 to 20 of about 1,889,452 (289)
ACM SIGCOMM Computer Communication Review, 2020 Since the start of the COVID-19 pandemic, technology enthusiasts have pushed for digital contact tracing as a critical tool for breaking the COVID-19 transmission chains. Motivated by this push, many countries and companies have created apps that enable digital contact tracing with the goal to identify the chain of transmission from an infected ...
Amee Trivedi, Deepak Vasisht
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Geometry and design of spur gear drive associated with low sliding ratio
Advances in Mechanical Engineering, 2021 The relative sliding between tooth surfaces is the main cause of tooth wear and power loss, which directly affects the transmission efficiency and durability of gear.
Wei Sheng +3 more
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Contact resistivity and current flow path at metal/graphene contact [PDF]
Applied Physics Letters, 2010 The contact properties between metal and graphene were examined. The electrical measurement on a multiprobe device with different contact areas revealed that the current flow preferentially entered graphene at the edge of the contact metal. The analysis using the cross-bridge Kelvin (CBK) structure suggested that a transition from the edge conduction ...
Nagashio, K. +3 more
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Contact structures, deformations and taut foliations [PDF]
, 2015 Using deformations of foliations to contact structures as well as rigidity properties of Anosov foliations we provide infinite families of examples which show that the space of taut foliations in a given homotopy class of plane fields is in general not ...
Bowden, J.
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Experimental evaluation of the fatigue life of hydraulic gate cast iron rollers
Engineering Reports, 2020 Fixed‐wheel gates with wheels mounted on both sides that roll on roller path plates are used in both emergency intake gates and spillway gates in hydrogenerating stations.
Abdul Nabi Lashari +2 more
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High load capacity spur gears with conchoidal path of contact
Mechanics & Industry, 2021 The present study is devoted to investigation of spur gears with a conchoidal path of contact and a convex-convex contact between teeth. The load capacity and energy efficiency were evaluated using both theoretical and experimental approaches.
Tkach Pavlo +4 more
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Indoor Path-Planning Algorithm for UAV-Based Contact Inspection [PDF]
Sensors, 2021 Nowadays, unmanned aerial vehicles (UAVs) are extensively used for multiple purposes, such as infrastructure inspections or surveillance. This paper presents a real-time path planning algorithm in indoor environments designed to perform contact inspection tasks using UAVs.
Luis Miguel González-deSantos +3 more
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Applied Sciences, 2022 Tooth root bending stress and surface contact stress are two major determinants of the load carrying capacity of gear drives. Generally, a high contact ratio has the potential to enhance the gear strength.
Yanzhong Wang, Peng Liu, Delong Dou
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Vision-Guided MPC for Robotic Path Following Using Learned Memory-Augmented Model
Frontiers in Robotics and AI, 2021 The control of the interaction between the robot and environment, following a predefined geometric surface path with high accuracy, is a fundamental problem for contact-rich tasks such as machining, polishing, or grinding. Flexible path-following control
Alireza Rastegarpanah +4 more
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Friedel oscillations in a Luttinger liquid with long-range interactions [PDF]
, 2001 We introduce a path-integral approach that allows to compute charge density oscillations in a Luttinger liquid with impurities. We obtain an explicit expression for the envelope of Friedel oscillations in the presence of arbitrary electron-electron ...
. O. Gogolin +39 more
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