Results 101 to 110 of about 304,926 (297)

Automatic shape optimisation of a hydropower draft tube

open access: yes, 2003
Draft tube designs have to a large extend been based on intuition and on the experience of the design engineer. In a close future, CFD simulations coupled with optimisation algorithms will assist in the search for an optimal technical solution.
Lundström, Staffan,, Marjavaara, Daniel
core   +1 more source

CX3CL1 in Early Detection of Alzheimer's Disease: Plasma Dynamics Across Age and Disease Stages

open access: yesAnnals 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

Automatic shape optimisation of the turbine-99 draft tube

open access: yes, 2017
INTRODUCTION The performance of a hydraulic reaction turbine is significantly affected by the efficiency of its draft tube. Factors which impede the tube’s performance include the geometrical shape (profile), and velocity distribution at the inflow.
G tabor (21869942)   +4 more
core   +1 more source

Influence of runner blade number on hydraulic performance and flow control in draft tube of Francis turbine

open access: yesAdvances in Mechanical Engineering
As a widely used core component of hydropower generation, the stable and safe operation of the Francis turbine plays a very important role in engineering applications.
Jiahao Lu, Chenhan Su, Ran Tao
doaj   +1 more source

Feasibility and Tolerability of Performing Portable MRI for Neurological Disorders in an Outpatient Neurology Clinic: A Prospective Cohort

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Accessing brain magnetic resonance imaging (MRI) can be challenging, especially for underserved patients, which may lead to disparities in neurological diagnosis. Method This mixed‐methods study enrolled adults with one of four neurological disorders: mild cognitive impairment or dementia of the Alzheimer type, multiple sclerosis ...
Maya L. Mastick   +19 more
wiley   +1 more source

Experimental and Numerical Simulations Predictions Comparison of Power and Efficiency in Hydraulic Turbine

open access: yesModelling and Simulation in Engineering, 2011
On-site power and mass flow rate measurements were conducted in a hydroelectric power plant (Mexico). Mass flow rate was obtained using Gibson's water hammer-based method.
Laura Castro   +3 more
doaj   +1 more source

Developmental and Epileptic Encephalopathy due to Biallelic Pathogenic Variants in PIGM

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective PIGM encodes a critical enzyme in the glycosylphosphatidylinositol (GPI)‐anchor biosynthesis pathway. While promoter‐region mutations in PIGM have been associated with a relatively mild phenotype characterized by portal vein thrombosis and absence seizures, recent evidence suggests that coding‐region mutations result in a more severe
Júlia Sala‐Coromina   +11 more
wiley   +1 more source

CFD modeling of draft tube reactor

open access: yes, 2009
Draft tube reactors also known as airlift column reactors have been the one of the most researched topics in recent decades. The design, scale up and performances require heavy extensive and accurate information from experimental results.
Yue, Ernest Meng Tuck.
core  

Fluid–Solid Mixing Transfer Mechanism and Flow Patterns of the Double-Layered Impeller Stirring Tank by the CFD-DEM Method

open access: yesEnergies
The optimization design of the double-layered material tank is essential to improve the material mixing efficiency and quality in chemical engineering and lithium battery production.
Man Ge, Gaoan Zheng
doaj   +1 more source

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