Results 71 to 80 of about 161,873 (336)
, 2009 In the oil and gas industry, an underreamer is a tool used to extend and enlarge the diameter of a previously-drilled bore. The problem proposed to the Study Group is to obtain appropriate mathematical models of underreamer dynamics, in forms that will ...
Barton, David +8 more
core
Conductive Bonding and System Architectures for High‐Performance Flexible Electronics
Advanced Functional Materials, EarlyView.This review outlines bonding technologies and structural design strategies that support high‐performance flexible and stretchable electronics. Bonding approaches such as surface‐activated bonding and anisotropic conductive films, together with system‐level architectures including buffer layers and island‐bridge structures, possess distinct mechanical ...
Kazuma Nakajima, Kenjiro Fukuda
wiley +1 more source
Application of Shock Absorber based on Bit-rock Interaction
Shiyou jixie, 2022 In order to obtain the optimal parameters of shock absorber and thus reduce the downhole vibration intensity in the process of rock-breaking drilling of bit,on the basis of considering the dynamic coupling of drill string,bit and rock system,taking the ...
Hu Zhiqiang +5 more
doaj
Mars Science Laboratory Drill [PDF]
The Drill for the Mars Science Laboratory mission is a rotary-percussive sample acquisition device with an emphasis on toughness and robustness to handle the harsh environment on Mars.
Okon, Avi B.
core +4 more sources
Measurement of Nanoparticles Release during Drilling of Polymer Nanocomposites [PDF]
, 2015 Nanomaterials are one of the promising technologies of this century. The Project on Emerging Nanotechnologies [1] reports more than 1600 consumer products based on nanotechnology that are currently on the market and advantages link to the reinforcement ...
Abhyankar, Hrushikesh +4 more
core +1 more source
Advanced Functional Materials, EarlyView.Tin hexathiophosphate memristors leverage intrinsic nanopores together with a guided filament formation strategy to regulate titanium ion motion and switching behavior. The devices support reliable nonvolatile memory and reconfigurable logic‐in‐memory, demonstrating 14 Boolean logic functions in a single cell.
Thaw Tint Te Tun +7 more
wiley +1 more source
Study on Mechanism of Stick–Slip Vibration Based on Torque Characteristics of PDC Bit
Applied SciencesStick–slip vibration (SV) of drill string systems is the main cause of fatigue failure of PDC bits under complex drilling conditions. Exploring its mechanism is helpful for identifying the causes of bit failure and developing preventive measures to ...
Lijun Li, Chunliang Zhang, Aixuan Wu
doaj +1 more source
Забезпечення якісних конструкторських показників цементованих цапф лап тришарошкових бурових доліт на етапах підготовки їх виготовлення [PDF]
, 2015 Дослідження має на меті вирішення проблеми забезпечення якісних показників цементованих цапф лап тришарошкових бурових доліт. Дослідження проводились в умовах реального виробництва бурових доліт, за умов математичного планування експериментів ...
Петрина, Ю. Д. +2 more
core
Advanced Healthcare Materials, EarlyView.Membrane fusion‐inspired nanomaterials offer transformative potential in diagnostics by mimicking natural fusion processes to achieve highly sensitive and specific detection of disease biomarkers. This review highlights recent advancements in nanomaterial functionalization strategies, signal amplification systems, and stimuli‐responsive fusion designs,
Sojeong Lee +9 more
wiley +1 more source
Advanced Healthcare Materials, EarlyView.This work introduces photo‐crosslinkable tyraminated poly(vinyl alcohol)‐gelatin (PVA‐GT) hydrogels as tunable injectable platforms for tissue engineering and growth factor delivery applications. This schematic illustrates the two developed hydrogel formulations and the experimental workflow used to evaluate their physico‐chemical properties in vitro ...
Alessia Longoni +15 more
wiley +1 more source