Results 171 to 180 of about 295,204 (387)

Progress on the Attenuation Mechanism and Modification of the Cobalt‐Free Spinel LiNi0.5Mn1.5O4

open access: yesAdvanced Science, EarlyView.
This review provides an overview of the development history, working mechanisms, and scientific challenges of LiNi0.5Mn1.5O4 cathode materials for Lithium‐ion battery and discusses the strategies to improve the electrochemical performance of LiNi0.5Mn1.5O4.
Bao Zhang   +11 more
wiley   +1 more source

Fuel Consumption Study for Auxiliary Engines that Equip an Oil Tanker

open access: yesThe Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, 2017
The paper deals with an oil tanker whose propulsion system with internal combustion engine during navigation was investigated. For a power plant with internal combustion engines we distinguish the subsystems: the internal combustion engine; consumer (s);
Mariana LUPCHIAN
doaj  

Finite Element Simulation of a Steady-State Stress Distribution in a Four Stroke Compressed Natural Gas-Direct Injection Engine Cylinder Head [PDF]

open access: yes, 2006
The main aim of this work is to predict the design performance based on the stress/strain and thermal stress behaviour of cylinder head under various operating conditions.
Abdullah, S.   +2 more
core  

Shielding Si Armed with CoSi2 Nanoplates and Dual‐Carbon Shells: 3D Porous Microspheres as High‐Performance Anodes for Li‐Ion Batteries

open access: yesAdvanced Science, EarlyView.
The lithium‐ion battery anode is designed utilizing 3D porous microspheres comprising Si armed with CoSi2 multi‐cores encapsulated within dual protective shells of metallic‐Co embedded nitrogen‐doped graphitic carbon (NGC) and polydopamine‐derived carbon (PDA‐C).
Jae Seob Lee   +11 more
wiley   +1 more source

Electric cars [PDF]

open access: yes, 2015
Electric car is a car driven by one or more electric motors, powered by an independent source of electricity (batteries, fuel cells, and so on) rather than an internal combustion ...
Varakin, V.
core  

Sacrificial Template‐Derived CoMo‐LDH Gas Diffusion Electrode for Anion Exchange Membrane Water Electrolysis

open access: yesAdvanced Science, EarlyView.
This work presents high‐performance CoMo‐LDH electrodes for anion exchange membrane water electrolysis (AEMWE), developed via a sacrificial template method. High‐valence Mo induces oxygen vacancies and drives the lattice oxygen mechanism (LOM). In alkaline media, Mo leaches, forming active (oxy)hydroxide.
Sung Jun Lee   +11 more
wiley   +1 more source

HCCI combustion – a challenge for internal combustion engine

open access: yesCombustion Engines, 2009
HCCI engine offers a high thermal efficiency combined with low nitrogen oxides and particulate matter emissions. However the key problem: controlled autoignition (CAI) on which is focused this paper is still not solved. Attempts to solve CAI problem as: variable compression ratio (VCR), variable valve train (VVT), exhaust gas recirculation (EGR) and ...
openaire   +2 more sources

Diffusivity in turbulent fluid containing two dominant scales, and compressible shear layer according to a kinetic theory [PDF]

open access: yes
The solution of the two nonequilibrium-degree kinetic equation was first determined for the effective length scale and turbulence energy for a spatially homogeneous turbulence field with two characteristic length scales, where the source for one family ...
Chung, P. M.
core   +1 more source

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