Results 51 to 60 of about 642,264 (278)

Electrolyte Additive Strategies in Aqueous Zn‐Ion Batteries: Recent Advances and Prospects

Advanced Science, EarlyView.
This article provides a comprehensive overview of the current status and future development directions of AZIBs electrolyte additives in three aspects: stabilizing zinc anodes (uniform deposition, inhibition of dendritic crystals), protecting cathodes (structural stability, inhibition of dissolution), and enhancing electrolyte stability (wider ...
Yuanze Yu, Hongmin Liu, Long Fan, Huakun Liu, Shixue Dou, Guoxiu Wang, Nana Wang, Zhongchao Bai   +7 more
wiley   +1 more source

Probabilistic Performance Prediction of a Hydrogen-Converted SI Engine Using a Markov-Chain-Wiebe Framework

Automotive Experiences
This study employs a novel Markov-chain modeling framework to analyze the combustion-performance interaction in a hydrogen-fueled spark-ignition engine.
Purnami Purnami, Willy Satrio Nugroho, Lilis Yuliati, Fikrul Akbar Alamsyah, ING Wardana, Abdul Mudjib Sulaiman Wahid   +5 more
doaj   +1 more source

Experimental Research on Controllability and Emissions of Jet-Controlled Compression Ignition Engine

Energies, 2019
Low-temperature combustions (LTCs), such as homogeneous charge compression ignition (HCCI), could achieve high thermal efficiency and low engine emissions by combining the advantages of spark-ignited (SI) engines and compression-ignited (CI) engines ...
Hua Tian, Jingchen Cui, Tianhao Yang, Yao Fu, Jiangping Tian, Wuqiang Long   +5 more
doaj   +1 more source

NONPERIODIC OSCILLATIONS OF PRESSURE IN A SPARK IGNITION COMBUSTION ENGINE [PDF]

International Journal of Bifurcation and Chaos, 2004
We report our results on nonperiodic experimental time series of pressure in a spark ignition engine. The experiments were performed for a low rotational velocity of a crankshaft and a relatively large spark advance angle. We show that the combustion process has many chaotic features.
M. Wendeker, Grzegorz Litak, Jacek Czarnigowski, K. Szabelski   +3 more
openaire   +2 more sources

Flexoelectricity in Photoconversion: Fundamentals, Materials, and Outlooks

Advanced Science, EarlyView.
Mechanical bending of a flexible cantilever induces a strain gradient in the photoactive material. The resulting flexoelectric field couples with photovoltaic and photoconductive effects, modulating charge generation, separation, and collection. A comparative analysis of oxide perovskites, halide perovskites, and two‐dimensional materials is presented,
Xiang Huang, Feng Li, Rongkun Zheng
wiley   +1 more source

Experimental Study of the Performance of Turbo-Charged Gasoline Direct-Injection Engine Based on Different Pre-Chamber Structures

Energies
In this paper, in order to improve the fuel economy of the actual application of the engine under multi-operating conditions, an experimental study is carried out on a turbo-charged direct-injection engine based on different pre-chamber structures.
Xiaowei Zhao, Yuedong Sun, Zhendong Zhang, Congbo Yin   +3 more
doaj   +1 more source

Charting the Future of Stereoselective Carbohydrate Synthesis: The Essential Role of Cross‐Disciplinary Innovation

Advanced Science, EarlyView.
Cross‐disciplinary endeavors are blossoming across the broad chemical sciences. This perspective provides a glimpse into the rewarding interdisciplinary journey taken by the Charles Loh research group in pioneering the σ‐hole based catalytic glycosylation strategy.
Charles C. J. Loh
wiley   +1 more source

Torque and Power Characteristics of Single Piston LPG-Fueled Engines on Variations of Ignition Timing

Automotive Experiences, 2019
Liquefied Petroleum Gas (LPG) is an alternative fuel that has all key properties for the Spark Ignition (SI) engine. However, because of its properties, ignition timing on an LPG SI engine needs to be advanced from the reference angle to get the optimum ...
Bagiyo Condro Purnomo, Noto Widodo
doaj   +1 more source

Bound Water as a Reinforcing Element for Ultra‐Strong Polyacrylamide

Advanced Science, EarlyView.
Rather than acting as a conventional plasticizer, bound water serves as a reinforcing element in polyacrylamide by constructing strong PAM–water–PAM hydrogen‐bond networks. This water‐mediated architecture delivers ultra‐high mechanical strength and exceptional flame resistance, redefining the role of water in polymer reinforcement.
Sirawit Pruksawan, Nannan Li, Zehuang Lin, Jianwei Zheng, Terence Jun En Loh, Yi Ting Chong, Junhua Kong, Xunan Hou, Xian Jun Loh, Chaobin He, FuKe Wang   +10 more
wiley   +1 more source

Unburned Hydrocarbons in a Spark-Ignition Engine Cylinder

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 1984
C3H8-O2-N2 mixtures were spark-ignited in a motored engine cylinder, and the mass fractions of CO2, CO, H2 and hydrocarbons in the cylinder during the exhaust process were investigated. In the vicinity of the limits of flame propagation in the engine cylinder, branched flames, which propagate at relatively slow speed, appear. In the mixture composition
HAMAMOTO, Yoshisuke, WAKISAKA, Tomoyuki, TOMITA, Eiji, NAKATA, Toshio   +3 more
openaire   +3 more sources