Results 51 to 60 of about 55,811 (318)
Advanced Materials, EarlyView.Wood and cellulose are the most abundant and important sustainable materials on the planet at the disposal to solve major societal challenges. This perspective, written for all materials scientists, highlights how breakthroughs in cellulose nanotechnology combined with functional nanomaterials can revolutionize important areas like construction ...
Mahiar Max Hamedi +5 more
wiley +1 more source
Shock and Vibration, 2016 In spark ignition engines, knock onset limits the maximum spark advance. An inaccurate identification of this limit penalises the fuel conversion efficiency.
Fengrong Bi +4 more
doaj +1 more source
Study on Gas Product of Gas Explosion Under Different Ignition Modes
Meikuang Anquan, 2020 A self-developed gas explosion system induced goaf spontaneous combustion was used to study the variation of methane products ignited by electric spark and high temperature source.
WANG Haiyan, ZHANG Lei, LYU Jiaxi
doaj +1 more source
Optical study of flow and combustion in an HCCI engine with negative valve overlap [PDF]
, 2006 One of the most widely used methods to enable Homogeneous Charge Compression Ignition (HCCI) combustion is using negative valve overlapping to trap a sufficient quantity of hot residual gas. The characteristics of air motion with specially designed valve
Megaritis, T +4 more
core +1 more source
10 Years Development of Potassium‐Ion Batteries
Advanced Materials, EarlyView.Significant progress is made in PIBs over the past decade, but the improvements based on half‐cell testing, low mass loading, and low energy density are insufficient for practical applications. This review summarizes the challenges and strategies for PIBs, highlights the importance of further research focusing on full cells, and provides an analysis of
Mingnan Li +7 more
wiley +1 more source
COVID‐19 in the Pacific territories: Isolation, borders and the complexities of governance
Asia &the Pacific Policy Studies, Volume 9, Issue 3, Page 394-407, September 2022., 2022 Abstract Early experience of COVID‐19 in seven Pacific politically dependent territories (Guam, American Samoa, Pitcairn, Tokelau, French Polynesia, Wallis and Futuna, and New Caledonia) emphasises a diversity of contexts, responses, outcomes and possible futures.
John Connell
wiley +1 more source
Gazi Üniversitesi Fen Bilimleri Dergisi, 2022 In this study, the effects of different engine speed values on performance and combustion characteristics were investigated by converting a diesel engine to a spark-ignition engine using natural gas.
Fatih AKTA
doaj +1 more source
Sustained arc ignition system [PDF]
, 1977 Circuitry for maintaining an arc or spark across a spark gap for a desired length of time is disclosed. A high voltage, direct current source is connected in series with a secondary winding of a high voltage, stepup transformer or coil and a spark gap ...
Birchenough, A. G.
core +1 more source
Time-resolved OES of nanosecond pulsed discharges in N$_{2}$ and N$_{2}$/H$_{2}$O mixtures]{Time-resolved optical emission spectroscopy of nanosecond pulsed discharges in atmospheric pressure N$_{2}$ and N$_{2}$/H$_{2}$O mixtures [PDF]
J. Phys. D: Appl. Phys. 45 (2012) 345201, 2014 In this contribution, nanosecond pulsed discharges in N$_{2}$ and N$_{2}$/0.9% H$_{2}$O at atmospheric pressure (at 300 K) are studied with time-resolved imaging, optical emission spectroscopy and Rayleigh scattering. A 170 ns high voltage pulse is applied across two pin-shaped electrodes at a frequency of 1 kHz. The discharge consists of three phases:
arxiv +1 more source
Advanced Materials, EarlyView.This study introduce a novel approach to enhancing cathode‐SPE compatibility by utilizing the same poly(ionic liquid) (PolyIL)‐based material in both the SPE and the cathode binder. A modified biomass‐based PolyIL substrate, enriched with highly negatively charged C═O and ─OH groups, is incorporated into the SPE to improve Li+ migration and strengthen ...
Jiajia Li +8 more
wiley +1 more source