Results 21 to 30 of about 6,051,489 (245)

Influence of Ambient Pressure on the Jet-Ignition Combustion Performance and Flame Propagation Characteristics of Gasoline in a Constant Volume Combustion Chamber

Energies
Based on a constant volume combustion chamber, the initial ambient pressure effect on gasoline combustion performance and flame propagation of the active and passive pre-chamber ignition systems were studied.
Zongjie Hu, Minglong Li, Xinke Miao, Zhiyu Wang, Yuanzhi Tang, Xijiang Wu, Wangchao Yu, Zhe Kang, Jun Deng   +8 more
doaj   +1 more source

Architecture‐Driven Sensor Stability in Weft‐Knitted Engineering Textiles

Advanced Engineering Materials, EarlyView.
Textile‐integrated sensor architectures are systematically compared to evaluate their electromechanical behavior under combined mechanical and environmental loading. Pocket‐based integration exhibits stable and reproducible signals, whereas tunnel‐based routing shows higher sensitivity accompanied by increased variability.
Adnan Maroof Khan, Johannes Wendler, Dilbar Aibibu, Johannes Mersch, Michael Wöltje, Chokri Cherif   +5 more
wiley   +1 more source

474: lighting and thermal performance of innovative shading devices: new insights into their aesthetics and control in a Mediterranean climate [PDF]

, 2008
With a view towards minimising energy demand for cooling and artificial lighting in buildings, this paper evaluates innovative shading devices and how they can balance a generous degree of control mastering seasonal natural light with thermal gains in a ...
Passive & Low Energy Architecture (PLEA), Calleja, Herman, Buhagiar, Vincent, 25th Conference on Passive and Low Energy Architecture   +3 more
core  

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

Advanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

Combustion Characteristics of a Hydrogen-Fueled TJI Engine under Knocking Conditions

Energies
The use of a two-stage combustion system in a hydrogen-fueled engine is characteristic of modern internal combustion engines. The main problem with hydrogen combustion in such systems is knocking combustion.
Ireneusz Pielecha, Filip Szwajca
doaj   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source

Combined effects of engine speed, excess air ratio and nozzle diameter on characteristics of an SI engine with passive pre-chamber

Engineering Science and Technology, an International Journal
Turbulent jet ignition (TJI) offers a promising approach to extending the lean-burn limit of spark-ignition (SI) engines by enhancing ignition and accelerating combustion.
İbrahim Taş, Oğuzhan Doğan, Mustafa Aydın, Erkan Öztürk, Özer Can, Nazım Usta   +5 more
doaj   +1 more source

Numerical and experimental study of passive pre-chamber turbulent jet ignition on Wankel engine

AIP Conference Proceedings
This study aims to increase the flame speed in the Wankel engine by using turbulent jet ignition. The Wankel engine suffers from poor exhaust emissions and high fuel consumption due to insufficient combustion speed and the inability to spread the flame throughout the shallow structured combustion chamber.
Dillice, Harun, Kutlar, Osman Akın, Taşkıran, Özgür Oğuz, Cihan, Ömer, Arslan, Hikmet, Çalık, Alper, Çetiner, Arda, Cihan, Ömer, 0000-0001-8103-3063, Meslek Yüksekokulları, Hendek Meslek Yüksekokulu, Makine ve Metal Teknolojileri Programı   +9 more
openaire   +2 more sources

Wearable Smart Patches on Sustainable Chitosan With Reversible Microbial Growth‐Inhibitory Properties

Advanced Functional Materials, EarlyView.
ABSTRACT Chitosan, a polysaccharide upcycled from biowaste, has long promised sustainable, biocompatible, and antimicrobial films and devices, an appeal reinforced by its recent regulatory recognition, with several chitosan‐based antibacterial dressings gaining clearance through the Food and Drug Administration's 510(k) pathway.
Jacopo Nicoletti, Kubra Kocak, Andrea Michel, Enrico Cavarzerani, Ali Raza, Petr Rohzin, Nouha Loudhaief, Saimir Frroku, Nicolò Baldovin, Hazrat Bilal, Alvise Perosa, Maurizio Selva, Flavio Rizzolio, Luca Sbuelz, Sabrina Tamburini, Domenico De Fazio, Giovanni Antonio Salvatore   +16 more
wiley   +1 more source

Effects of passive pre-chamber jet ignition on knock combustion at hydrogen engine

Combustion Engines
The use of gaseous fuels, including hydrogen, to fuel an engine enables an increase in efficiency and a significant reduction in toxic exhaust emissions. The research reported in this paper concerns a two-stage passive hydrogen combustion system for analyzing knock combustion under varying process conditions.
Filip Szwajca, Cezary Gawrysiak, Ireneusz Pielecha   +2 more
openaire   +1 more source