Results 71 to 80 of about 15,062 (254)
PDC cutter pressure on plastic-brittle rock in the process of its destruction
Записки Горного института, 2020 Presently, there are no methods for calculating the parameters of the drilling practices with rock-cutting tools equipped with polycrystalline diamond composite (PDC cutters). To create such a method requires the studying their work. The article presents
Oleg B. Trushkin, Hamzja I. Akchurin
doaj +1 more source
Experimental quantum cryptography scheme based on orthogonal states
, 2010 Since, in general, non-orthogonal states cannot be cloned, any eavesdropping attempt in a Quantum Communication scheme using non-orthogonal states as carriers of information introduces some errors in the transmission, leading to the possibility of ...
Alessio Avella +7 more
core +1 more source
f‐Block Element‐Based MOF Thin Films: A Platform for Luminescence, Sensing, and Energy Applications
Small, EarlyView.f‐Block element–based metal–organic framework (f‐MOF) thin films offer exceptional potential for luminescent, sensing, and energy‐related applications. This review surveys recent progress in their synthesis, characterization, and functional implementation, emphasizing the diversity of available thin‐film fabrication strategies. The convergence of these
Dong‐Hui Chen, Christof Wöll
wiley +1 more source
Optimization of Hydraulic Structure of Rotary Cutting PDC Bit
Shiyou jixie, 2020 Few researches have been conducted on the hydraulic structure optimization design of rotary cutting PDC bit. Standard k-ε model and discrete phase model (DPM) are used to simulate the bottom hole flow field of rotary cutting PDC bit and optimize the ...
Cao Yang, Zhang Boyu
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Multi‐Material Droplet‐Based Hydrogel Threads for Extrusion 3D Printing
Small Methods, EarlyView.This study introduces a novel approach to produce multi‐material threads for 3D printing by precisely arranging hydrogel droplets separated by lipid bilayers. By merging the precision of inkjet printing with the scalability of extrusion printing, this method prevents cross‐contamination, maintains material control, and enables intricate designs ...
Dor Tillinger +2 more
wiley +1 more source
New Bit with Rolling PDC Cutter
Shiyou jixie, 2016 The new rolling PDC cutter drill bit technology could effectively address the fixed cutter eccentric wear issue,prolong durability,improve ROP,resulting in improved drilling efficiency and reduced drilling costs,which is a great step of drill bit ...
Shi Jiangang +4 more
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Shiyou jixie, 2020 In order to give full play to the performance of the ROP improvement tool based on pulsed downhole alternating flow field, this paper studied its support PDC bit by means of numerical simulation.
Fan Jiqiang +5 more
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, 2012 In this work we present the experimental observation of the non factorable near field spatio-temporal correlation of ultra-broadband twin beams generated by parametric down conversion (PDC), in an interferometric-type experiment using sum frequency ...
Brambilla, E. +3 more
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Transcriptional regulation of human NMNAT2: insights from 3D genome sequencing and bioinformatics
The FEBS Journal, EarlyView.NMNAT2 is a valuable drug target, as low levels increase the risk of neurodegeneration. We employed 4C‐seq to identify NMNAT2 regulatory regions in the human genome, revealing distinct interactomes of the NMNAT2 promoter in undifferentiated and neuron‐like SH‐SY5Y cells. Additionally, we uncovered NMNAT2‐associated genes and transcription factors. This
Yu Chen Chang +5 more
wiley +1 more source
Photon counting for quantum key distribution with Peltier cooled InGaAs/InP APD's
, 2001 The performance of three types of InGaAs/InP avalanche photodiodes is investigated for photon counting at 1550 nm in the temperature range of thermoelectric cooling.
AndrÉ Stefanov +8 more
core +2 more sources