Results 81 to 90 of about 35,413 (308)

Elastomeric Micro‐Balloons for Remote Control of Cerebral Blood Flow and Real‐Time In vivo Imaging of Rodent Brain Response to Hypoperfusion

open access: yesAdvanced Materials, EarlyView.
This study reports the fabrication of MRI‐compatible elastomeric micro‐balloons via a multi‐step bubble casting process, where the monolithic elastomeric wall is selectively stiffened for reversible and controlled inflation and elasticity, depending on the target vessels for graded occlusion of cerebral arteries.
Jong Bin Kim   +10 more
wiley   +1 more source

Independent Orbiter Assessment (IOA): FMEA/CIL assessment [PDF]

open access: yes
The results of the Independent Orbiter Assessment (IOA) of the Failure Modes and Effects Analysis (FMEA) and Critical Items List (CIL) are presented.
Compton, J. M.   +2 more
core   +4 more sources

Neutronics-thermal-hydraulics-material coupling study of lead-bismuth cooled reactor single rod based on oxidative corrosion characteristics

open access: yesHe jishu
BackgroundLiquid lead-bismuth eutectic (LBE) corrosion and dissolution of structural materials pose significant challenges in the application of lead-bismuth-cooled fast reactors (LFRs).
JI Xu   +3 more
doaj   +1 more source

Stem hydraulic capacitance decreases with drought stress : implications for modelling tree hydraulics in the Mediterranean oak Quercus ilex [PDF]

open access: yes, 2017
Hydraulic modelling is a primary tool to predict plant performance in future drier scenarios. However, as most tree models are validated under non-stress conditions they may fail when water becomes limiting.
Limousin, Jean Marc   +4 more
core   +2 more sources

Droplet Electricity Generators With Maximized Energy Collection Zone Enabled by Aloe‐Inspired Midrib and Cuticle

open access: yesAdvanced Materials, EarlyView.
An Aloe‐pinspired droplet electricity generator (A‐DEG) overcomes the limited energy collection zone of conventional DEGs by guiding impact droplets through a channeling midrib and artificial cuticle. The channeling midrib induces uni‐directional droplet spreading, while the artificial cuticle on the midrib further reinforces this behavior through its ...
Gibeom Lee   +8 more
wiley   +1 more source

Phenomenology of liquid metal thermal-hydraulics [PDF]

open access: yes, 1999
The cooling system of the Energy Amplifier (EA) is based on a Lead flow driven by natural circulation [1]. In the Energy Amplifier Demonstration Facility (EADF) a Lead-Bismuth eutectic is used and natural circulation, although enhanced through a gas ...
Bellucci, Valter   +7 more
core  

Large-eddy simulations of turbulent flow for grid-to-rod fretting in nuclear reactors

open access: yes, 2013
The grid-to-rod fretting (GTRF) problem in pressurized water reactors is a flow-induced vibration problem that results in wear and failure of the fuel rods in nuclear assemblies.
Bakosi, J.   +4 more
core   +1 more source

Delayed neutrons measurement at the MEGAPIE target [PDF]

open access: yes, 2007
In the framework of the Neutronic and Nuclear Assessment Task Group of the MEGAPIE experiment we measured the delayed neutron (DN) flux at the top of the target.
Bokov, Pavel   +6 more
core   +1 more source

Understanding Operando Water Management in Hydroxide‐Exchange‐Membrane Fuel Cells

open access: yesAdvanced Materials Interfaces, EarlyView.
Effective water management is vital for high‐performance hydroxide‐exchange‐membrane fuel cells. Using a custom water‐flux station, this study quantifies how membrane thickness, microporous layers, and operating conditions dictate internal water transport.
Catherine M. Weiss   +4 more
wiley   +1 more source

Experimental and Numerical Study of Rod Bundle Sub-channel Flow Field under Blockage

open access: yesYuanzineng kexue jishu, 2023
Experiment study of a 5×5 rod bundle was conducted to investigate the effect of blockage on sub-channel flow field and mass flow rate. A 3×3 block was set in a 5×5 rod bundle with the largest blocking percent of about 72% in the center sub-channel.
CHEN Denggao;BI Jingliang;HUANG Yanping;YUAN Dewen;ZAN Yuanfeng;XU Jianjun
doaj  

Home - About - Disclaimer - Privacy