Results 141 to 150 of about 466,075 (310)

Investigation of soot processes in an optical diesel engine

open access: yes, 2012
This thesis was submitted for the degree of Doctor of Philosophy and was awarded by Brunel UniversityThis study is dedicated to investigation of soot formed during combustion in diesel engine.
Menkiel, Barbara
core  

Particle concentration and size distribution in the NGRIP ice core

open access: yes, 2003
A novel laser microparticle detector used in conjunction with continuous sample melting has provided a more than 1500 m long record of particle concentration and size distribution of the NGRIP ice core, covering continuously the period approximately from
Ruth, Urs   +5 more
core   +1 more source

Tailored Hierarchical Porous Copper Architectures via Three Dimensional Printing and Pressure‐less Sintering for Next‐Generation Lithium‐Metal Batteries

open access: yesAdvanced Engineering Materials, EarlyView.
A hierarchical porous copper current collector is fabricated via three‐dimensional printing combined with pressureless sintering to stabilize lithium metal anodes. The interconnected architecture lowers local current density, guides uniform Li deposition within pores, and suppresses dendrite growth.
Alok Kumar Mishra, Mukul Shukla
wiley   +1 more source

Improving the precision in retrieving particle size distribution by particle swarm optimization

open access: yes四川大学学报. 自然科学版
Particle size distribution retrieving is a long-standing problem in atmospheric science, and the extinction method is an effective solution to this problem.
FANG Long-Jie, CHENG Ke, HE Xiu-Jun
doaj  

Distribution of artificial radionuclides in particle-size soil fractions

open access: yesScientific Reports
Experimental studies were carried out to evaluate the efficiency of fractional separation of radioactively contaminated soils with respect to gamma-emitting 137Cs and 241Am.
Assiya Kunduzbayeva   +5 more
doaj   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth   +6 more
wiley   +1 more source

Composition‐Tuned Enhancement of the Anomalous Nernst Effect in FeCo–Pt Thin Films on Rigid and Flexible Substrates

open access: yesAdvanced Engineering Materials, EarlyView.
Disordered (Fe50Co50)1−xPtx thin films exhibit a pronounced anomalous Nernst effect (ANE) with a strong composition dependence on both rigid and flexible substrates. The transverse thermoelectric response peaks near 22.5 at.% Pt, accompanied by enhanced αxy/σxy scaling, thermal transport, and ANE sensitivity.
Mojtaba Mohammadi   +2 more
wiley   +1 more source

Characterization of carbonaceous nanoparticle size distributions (1-10 nm) emitted from laboratory flames, diesel engines and gas appliances

open access: yes, 2008
Commercially available SMPS and a differential mobility analyser (DMA) designed to enable detection of particles as small as 1 nm were used to provide further information about nanoparticles emitted from premixed flames, engines and common burners, with ...
De Filippo, Andrea
core  

Powder Optimization Strategies for Binder Jetting Printing of BaTiO3 and Ba0,6Sr0,4TiO3 Ceramics

open access: yesAdvanced Engineering Materials, EarlyView.
Powder optimization is investigated to enable binder jetting of BaTiO3 and Ba0.6Sr0.4TiO3 ferroelectric ceramics. The antagonistic relationship between flowability and binder compatibility is addressed through binder impregnation of granulated powders and fumed silica addition to fine powders.
Fanny Pruvost   +4 more
wiley   +1 more source

Atmospheric new particle formation identifier using longitudinal global particle number size distribution data

open access: yesScientific Data
Atmospheric new particle formation (NPF) is a naturally occurring phenomenon, during which high concentrations of sub-10 nm particles are created through gas to particle conversion. The NPF is observed in multiple environments around the world.
Simonas Kecorius   +47 more
doaj   +1 more source

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