Results 91 to 100 of about 95,741 (349)

Species separation and modification of neutron diagnostics in inertial-confinement fusion

open access: yes, 2014
The different behaviours of deuterium (D) and tritium (T) in the hot spot of marginally-igniting cryogenic DT inertial-confinement fusion (ICF) targets are investigated with an ion Fokker-Planck model.
Canaud, Benoit   +2 more
core   +1 more source

Direct numerical simulation of heat transfer from the stagnation region of a heated cylinder affected by an impinging wake [PDF]

open access: yes, 2011
Copyright © 2011 Cambridge University Press.The effect of an incoming wake on the flow around and heat transfer from the stagnation region of a circular cylinder was studied using direct numerical simulations (DNSs).
JAN G. WISSINK   +4 more
core   +1 more source

The Bitter Taste of Brazil's Temporary Import Ban on Robusta Coffee

open access: yesAgribusiness, EarlyView.
ABSTRACT Brazil, a leading Robusta coffee producer and exporter, faced a significant drought in 2016–2017, which drastically reduced production and depleted stocks. Consequently, Brazil temporarily permitted the import of one million 60‐kg bags of Robusta coffee in the spring 2017. An import ban was imposed shortly afterward due to lobbying by domestic
Hanifi Otgun   +2 more
wiley   +1 more source

Predicted Gas Properties in the Shock Layer Ahead of Capsule-Type Vehicles at Angles of Attack [PDF]

open access: yes
A method for determining shock-wave shapes, stagnation-point location, and flow-field properties for spherically blunt bodies at angle of attack was developed. The method is applicable to perfect gas flows and equilibrium flow of real gases.
Kaattari, George E.
core   +1 more source

The influence of non-equilibrium dissociation on the flow produced by shock impingement on a blunt body [PDF]

open access: yes, 2004
We describe an investigation of the effects of non-equilibrium thermochemistry on the interaction between a weak oblique shock and the strong bow shock formed by a blunt body in hypersonic flow.
Hornung, H. G.   +2 more
core   +1 more source

FastCat: Autonomous Discovery of Multielement Layered Double Hydroxide Alloy Catalysts for Alkaline Oxygen Evolution Reaction

open access: yesAdvanced Intelligent Discovery, EarlyView.
A machine learning‐guided self‐driving laboratory screened over 500 nickel‐based layered double‐hydroxide catalysts for alkaline oxygen evolution. Out of the eight metals, the robot uncovered a quaternary Ni–Fe–Cr–Co catalysts requiring only 231 mV overpotential to reach 20 mA cm−2.
Nis Fisker‐Bødker   +3 more
wiley   +1 more source

A Unifying Approach to Self‐Organizing Systems Interacting via Conservation Laws

open access: yesAdvanced Intelligent Discovery, EarlyView.
The article develops a unified way to model and analyze self‐organizing systems whose interactions are constrained by conservation laws. It represents physical/biological/engineered networks as graphs and builds projection operators (from incidence/cycle structure) that enforce those constraints and decompose network variables into constrained versus ...
F. Barrows   +7 more
wiley   +1 more source

Stagnation-point flow of second grade nanofluid towards a nonlinear stretching surface with variable thickness

open access: yesResults in Physics, 2017
This paper investigates the stagnation point flow of second grade nanomaterial towards a nonlinear stretching surface subject to variable surface thickness.
Rai Sajjad Saif   +4 more
doaj   +1 more source

Analysis and testing of two-dimensional vented Coanda ejectors with asymmetric variable area mixing sections [PDF]

open access: yes
The analysis of asymmetric, curved (Coanda) ejector flow has been completed using a finite difference technique and a quasi-orthogonal streamline coordinate system.
Armstrong, R. L.   +3 more
core   +1 more source

Supersonic Line Broadening within Young and Massive Super Star Clusters

open access: yes, 2009
The origin of supersonic infrared and radio recombination nebular lines often detected in young and massive superstar clusters are discussed. We suggest that these arise from a collection of repressurizing shocks (RSs), acting effectively to re-establish
Beck   +22 more
core   +1 more source

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