Results 131 to 140 of about 998,789 (338)
Journal of Petroleum Exploration and Production TechnologyTo improve the understanding of key drilling parameters affecting the efficiency of the shaped polycrystalline diamond compact (PDC) bits during drilling operations in marble formations, this study conducted experimental investigations to explore the ...
Hongbo Zhao +5 more
doaj +1 more source
FEM STRUCTURAL ANALYSIS OF A SHAPING CUTTER USING CATIA
Fiabilitate şi Durabilitate, 2019 With the aid of the finite element analysis method, problems can be studied, the complexity of which is given by the complicated geometric configuration of the bodies, the material inhomogeneities, the anisotropy of the materials, the composite materials, etc. These problems occur frequently in practice at the various stages of development of a product,
openaire +1 more source
Real‐World Performance of CSF Kappa Free Light Chains in the 2024 McDonald Criteria
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Kappa free light chains (KFLCs) in the cerebrospinal fluid (CSF) have a similar performance to CSF‐restricted oligoclonal bands (OCB) for multiple sclerosis (MS) diagnosis. To help with implementation, we set out to resolve several remaining uncertainties: (1) performance in a real‐world cohort and the 2024 McDonald criteria; (2 ...
Maya M. Leibowitz +11 more
wiley +1 more source
Effects of Biological Sex and Age on Cerebrospinal Fluid Markers—A Retrospective Observational Study
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Cerebrospinal fluid (CSF) analysis is a key diagnostic tool for neurological diseases. To date, only a few studies have investigated in larger cohorts the effect of age and biological sex on diagnostic markers extracted from CSF. Methods For this retrospective observational study, 4163 CSF findings (2012–2020) were evaluated.
Isabel‐Sophie Hafer +3 more
wiley +1 more source
Алгоритм розрахунку профілю задньої поверхні радіального фасонного різця в залежності від значення величини переднього кута [PDF]
, 2014 Точність виготовлення радіальних фасонних різців значною мірою залежить від величини його геометричних параметрів, зокрема від величини його переднього кута.
Панчук, Віталій Георгійович
core
Meningovascular Inflammation in Cerebral Amyloid Angiopathy‐Related Cortical Superficial Siderosis
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT The role of inflammation in cortical superficial siderosis (cSS), a marker of cerebral amyloid angiopathy (CAA) linked to high hemorrhage risk, is unclear. We examined 15 patients with cSS using 3 T post‐contrast vessel wall MRI (VWI) and CSF analysis.
Philipp Arndt +8 more
wiley +1 more source
Computer-aided design of bevel gear tooth surfaces [PDF]
This paper presents a computer-aided design procedure for generating bevel gears. The development is based on examining a perfectly plastic, cone-shaped gear blank rolling over a cutting tooth on a plane crown rack.
Coy, John J. +2 more
core +1 more source
CX3CL1 in Early Detection of Alzheimer's Disease: Plasma Dynamics Across Age and Disease Stages
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Backgrounds Alzheimer's disease (AD) is characterized by amyloid‐beta plaques, tau tangles, and neuroinflammation. C‐X3‐C motif chemokine ligand 1 (CX3CL1, also known as fractalkine), a neuroimmune chemokine implicated in AD pathogenesis, shows inconsistent alterations in plasma/serum across studies.
Ling Wang +6 more
wiley +1 more source
Machining and grinding of ultrahigh-strength steels and stainless steel alloys [PDF]
Machining and grinding of ultrahigh-strength steels and stainless steel ...
Boulger, F. W. +2 more
core +1 more source
Tissue macerating instrument [PDF]
, 1977 A surgical tissue macerating and removal tool is described which has a rotating rod with a cutting member at one end and which disposed in a tube which is then contained in an extension of the tool handle.
Baehr, E. F., Burnett, J. E.
core +1 more source