Results 21 to 30 of about 972,039 (207)
Artificial Intelligence‐Empowered Single‐Cell Phenotyping for Rapid, Automated Pathogen Diagnostics
Advanced Science, EarlyView.This work presents an integrated diagnostic platform that combines microfluidic single‐cell bacterial detection with artificial intelligence‐driven analysis for rapid antimicrobial susceptibility testing. Single‐cell phenotyping enables assessment of antibiotic response in only a few cell replication cycles, while AI analysis supports precise bacterial
Sabita Khadka +3 more
wiley +1 more source
Experimental study on shale-breaking of special-shaped cutter PDC bit
Geomechanics and Geophysics for Geo-Energy and Geo-ResourcesTo enhance the drilling efficiency and extend the service life of PDC (Polycrystalline Diamond Composite) bits in shale formations, this study delves into the rock-breaking mechanisms of special-shaped cutters through a comprehensive experimental ...
Chun-Liang Zhang +7 more
semanticscholar +1 more source
Advanced Science, EarlyView.The protein aggregates and gene expression in the middle temporal gyrus (MTG) and somatosensory cortex (SOM) of the postmortem brains of 13 Alzheimer's disease patients were studied in detail, revealing that small hyperphosphorylated tau aggregates increase with Braak stage driven by microglial inflammation.
Elizabeth A. English +9 more
wiley +1 more source
Reducing critical effects of torsional vibrations induced by PDC bits during rock destruction
Известия высших учебных заведений: Геология и разведка, 2022 Introduction. Torsional vibrations caused by drilling using a polycrystalline diamond compact (PDC) bit are analysed using wellbore data obtained under various drilling modes. The drilling caused by torsional vibrations are analysed.
B. A. Ovezov +4 more
doaj +1 more source
Abstract Representation of Movement Parameters in Basal Ganglia Output
Advanced Science, EarlyView.The basal ganglia output provides a scalable velocity/position signal across behavioral contexts, supporting the idea that these variables are represented in the brain as abstract entities rather than as fixed changes in joint angles or specific sets of body effectors.
Ana Silvia Báez‐Cordero +3 more
wiley +1 more source
A Real Mathematical Model to Compute the PDC Cutter Wear Value to Terminate PDC Bit Run
, 2011 Drilling operations became more expensive and complicated day by day due to many reasons affecting directly the daily drilling cost. One of the most effective cost reductions was the fixed cutter bit solution which effectively achieved higher drilling ...
A. S. Dahab +5 more
core +1 more source
Research on the Bottom Hole Flow Field of PDC Bit [PDF]
, 2015 The three-dimension model of PDC bit was constructed in ANSYS software in order to obtain the physical model of the PDC bit’s flow field on bottom hole.
ZHANG, Hui
core +1 more source
Study on rock breaking law of ring groove PDC bit mixed PDC cutter and field test
Results in EngineeringIn order to solve the problems of low rock-breaking efficiency and poor bit stability of existing PDC bits in hard formation, a kind of annular PDC bit is proposed.
Kuilin Huang +4 more
doaj +1 more source
Applied SciencesDeep and ultra-deep shale gas resources have great potential, but well drilling faces many challenges. The Polycrystalline Diamond Compact (PDC) bit has become the primary rock-breaking instrument for oil and gas drilling.
Ye Chen +7 more
semanticscholar +1 more source
Development of vibration resistant PDC bit during drilling hard rock formation
IOP Conference Series: Earth and Environment, 2022 The authors of the article have analyzed the main causes of bit wear when drilling hard rock formation. The main reasons causing vibration phenomena in the BHA are identified. To mitigate vibrations, it is proposed to use an additional coefficient at the
R. R. Mingazov, V. Y. Yamaliev
semanticscholar +1 more source