Results 101 to 110 of about 868,275 (299)

Dynamics of Circumferential Torque Hydraulic Shock Generator

open access: yesShiyou jixie, 2015
The circumferential torque hydraulic shock generator may effectively inhibit "stuck and slip" during the process of drilling operations.This paper presents the structure and principles of the circumferential torque hydraulic shock generator,and provides ...
Li Meiqiu   +4 more
doaj  

Frictional Stabilities on Induced Earthquake Fault Planes at Fox Creek, Alberta: A Pore Fluid Pressure Dilemma

open access: yes, 2019
Earthquakes induced during hydraulic fracturing operations have occurred in a number of locales. However, in-situ studies aimed to discern the triggering mechanism remains exclusively statistical in their nature.
Schmitt, Douglas R.   +2 more
core   +1 more source

3D Printed Multimaterial Microfluidic Transistors

open access: yesAdvanced Materials Technologies, EarlyView.
We introduce a biocompatible, high resolution photopolymer resin that closely mimics the Young's Modulus (elasticity) and reversible stretchability (no hysteresis) of poly(dimethylsiloxane) (PDMS), enabling the fabrication of microfluidic transistors (i.e., microvalves capable of proportional amplification) by multimaterial stereolithography (mSLA ...
Alireza Ahmadianyazdi   +7 more
wiley   +1 more source

Spiral groove seal [PDF]

open access: yes, 1974
Mating flat surfaces inhibit leakage of a fluid around a stationary shaft. A spiral groove produces a pumping action toward the fluid when the shaft rotates. This prevents leakage while a generated hydraulic lifting force separates the mating surfaces to
Ludwig, L. P., Strom, T. N.
core   +1 more source

Anti‐Slip Material‐Based Strategies and Approaches

open access: yesAdvanced Materials Technologies, EarlyView.
This review highlights the principle mechanisms of slipping at the microscale, linking contact mechanics with a friction behavior model for surface interfaces. Main strategies to develop anti‐slip properties to the surfaces are discussed alongside standardized testing approaches.
Sogand Abbaspoor‐Zanjani   +3 more
wiley   +1 more source

Advances in Solid‐Phase Processing Techniques: Innovations, Applications, and Future Perspectives

open access: yesAdvanced Materials Technologies, EarlyView.
Based on practical manufacturing challenges, this review examines advanced solid‐phase processing techniques that overcome the inherent limitations of conventional melting‐based and traditional solid‐phase manufacturing, enabling the production of higher‐performance components at reduced cost through process innovation and improved supply‐chain ...
Tianhao Wang
wiley   +1 more source

Design and Experimental Investigation of a Self-Propelled Sea Buckthorn Cutting Harvester with a Reciprocating Cutter

open access: yesAgriculture
To address longstanding challenges in sea buckthorn harvesting—such as the absence of effective harvesting principles, inefficient traditional manual and semi-mechanised methods, and rising labour costs—this study developed a self-propelled harvester ...
Jian Song   +7 more
doaj   +1 more source

Small hydraulic turbine drives [PDF]

open access: yes, 1970
Turbine, driven by the fluid being pumped, requires no external controls, is completely integrated into the flow system, and has bearings which utilize the main fluid for lubrication and cooling. Torque capabilities compare favorably with those developed
Rostafinski, W. A.
core   +1 more source

Smart Closed‐Loop Systems in Personalized Healthcare: Advances and Outlook

open access: yesAdvanced Materials Technologies, EarlyView.
A smart closed‐loop e‐textile integrates multimodal sensing, onboard processing, wireless communication, and wearable power to enable real‐time physiological/biochemical monitoring and feedback‐controlled therapy. ABSTRACT Smart textiles represent a revolutionary frontier in healthcare, seamlessly blending fabric and advanced technologies to create ...
Safoora Khosravi   +12 more
wiley   +1 more source

UTILIZAÇÃO DA METODOLOGIA GRANADOS PARA A OTIMIZAÇÃO DE REDES HIDRÁULICAS MALHADAS

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental
RESUMO O método Granados de otimização, desenvolvido para redes ramificadas, foi associado à metodologia dos anéis de Hardy Cross e aplicado a redes malhadas.
Antonio Farias Leal   +1 more
doaj   +1 more source

Home - About - Disclaimer - Privacy