Results 91 to 100 of about 1,408 (249)
Advanced Science, EarlyView.Perception in robotic manipulation improves through the cooperative and complementary operation of biologically inspired multimodal tactile sensors. Receptor‐specific contribution analysis identifies which sensing modalities are required for specific tactile tasks.
Yu‐Jin Lee +4 more
wiley +1 more source
Analysis of Stick-Slip Vibration of PDC Bit under Sudden Increase of Formation Hardness
Shiyou jixie, 2019 In drilling an interbedded soft and hard formation with PDC bit, it is prone to cutter crack and damage. To address the issue, the stick-slip vibration characteristics of PDC bit during the sudden increase of formation hardness were studied.
Zha Chunqing +3 more
doaj
Mechanism and test analysis of rail corrugation
Journal of Advanced Mechanical Design, Systems, and ManufacturingIn view of the common phenomenon of rail corrugation on subway lines, both field measurement and numerical simulation were used to study mechanism of rail corrugation. In field measurement, vibration signals of vehicles were measured when a train passing
Dilai CHEN +5 more
doaj +1 more source
Advanced Science, EarlyView.This study elucidates the microstructural evolution at the material interface of Ni‐plated plain‐weave carbon fiber fabric following vacuum heat treatment at 500°C–900°C under different current densities, as well as the mechanism underlying the synergistic enhancement of electromagnetic shielding and ductility.
Wei Cheng +7 more
wiley +1 more source
PetroleumDrilling is one of the most challenging and expensive processes in hydrocarbon extraction and geothermal well development. Dysfunctions faced during drilling can increase the non-productive time (NPT) greatly, resulting in inflating the drilling cost and
Aditya Sharma +4 more
doaj +1 more source
On a hereditarity vibrating system with allowance for the effects stick-slip
Vestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2016 Summary: The work was a mathematical model that describes the effect of the sliding attachment (stick-slip), taking into account hereditarity. An explicit finite-difference scheme for the corresponding. Cauchy problem was constructed. Built on the basis of its waveform and phase trajectories.
openaire +2 more sources
From Flexible to Conformable Pressure Sensors: Mechanisms, Materials, and Biomedical Applications
Advanced Electronic Materials, EarlyView.This review highlights recent progress, challenges and future opportunities in pressure sensing for advanced biomedical applications. We summarize key transduction mechanisms and emerging material strategies, discuss representative wearable and implantable applications for continuous physiological monitoring and provide a focused perspective on barrier
Rishabh B. Mishra +2 more
wiley +1 more source
The Influence of Different Rocks on Drillstring Stick-Slip Vibration
Scientific Journal of TechnologyThis paper establishes a torsional model of a two-degree-of-freedom drill string system composed of a rotary table and bottom-hole assembly, constructs a friction model between the drill bit and rocks, and considers the influence of five different rock types on the stick-slip vibration of the drill string system.
Changshuai Shi, Xin Du
openaire +1 more source
Advanced Electronic Materials, EarlyView.Composite‐based flexible electronics integrate biodegradable polymers, conductive networks, and multilayer device architectures to balance electrical performance, mechanical durability, and controlled degradation. Interfacial engineering and encapsulation regulate transport stability and operational lifetime, while programmed disassembly enables ...
Sayam, Sangho Cho
wiley +1 more source
Journal of Low Frequency Noise, Vibration and Active ControlBy the analytical method, this paper investigates the mode-coupling friction-induced instability and the resulting stick-slip self-excited vibration of the marine stern water-lubricated rubber bearing-shaft system.
Chuang Wu +4 more
doaj +1 more source