Results 111 to 120 of about 7,208 (307)

NOx storage and reduction over a lean-burn automotive catalyst [PDF]

, 2007
Nowadays, there is an increased interest in lean-burn technologies, i.e. diesel and lean-burn gasoline engines, mainly due to their higher fuel efficiency compared to conventional gasoline engines.
Scholz, CML Karen, Scholz, C.M.L.
core   +1 more source

Gellan Gum Fluid Gel System for Controlled‐Delivery of Cytokine‐Licensed MSC‐EVs to Enhance Corneal Repair in Limbal Stem Cell Deficiency

Advanced Healthcare Materials, EarlyView.
Gellan gum fluid gel (FG) enables controlled ocular delivery of mesenchymal stromal cell (MSC)‐derived extracellular vesicles (EV). Its shear‐thinning, solid‐liquid‐solid rheology ensures prolonged ocular retention. Sustained MSC‐EV release (∼18% in 6 hrs) supports effective EV ocular delivery.
Seyedmohammad Moosavizadeh, Ava Dashti, Thomas E. Robinson, Robyn Gaffey, Richard Moakes, Neil Lagali, Liam Grover, Thomas Ritter   +7 more
wiley   +1 more source

Lean Combustion Enhancement and Decarbonization Technologies for Natural Gas Engines

Energies
This study explores key technological challenges and innovative strategies for improving the combustion performance and emission characteristics of low-carbon fuel engines, with a focus on natural gas applications.
Zhaojie Shen, Leyuan Wang, Lu Han, Hua Zhao, Fuqiang Wang, Guene Lougou Bachirou, Emmanuel Nyankson, Benjamin Agyei-Tuffour, Abu Yaya, Quanqing Yu, Wenzheng Cui   +10 more
doaj   +1 more source

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

Advanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong, You Zhou, Qingxiu Li, Wenyu Zhao, Sunyingyue Geng, Hangfei Li, Yan‐Bing Leng, Shirui Zhu, Guanglong Ding, Yongbiao Zhai, Ziyu Lv, Ye Zhou, Su‐Ting Han   +12 more
wiley   +1 more source

Experimental study on laminar flame characteristics of methane-PRF95 dual fuel under lean burn conditions [PDF]

, 2016
The effects of methane addition to PRF95 (primary reference fuel with 95% volume of iso-octane and 5% volume of n-heptane) on the fundamental combustion parameters are experimentally investigated in a cylindrical combustion vessel using classical ...
Lei Zhou (19808), Jiaying Pan (6400067), Dengquan Feng (7122119), Haiqiao Wei (4536787), Sotiris Petrakides (7120088), Rui Chen (1257861), Dongzhi Gao (4536784)   +6 more
core   +1 more source

Study on combustion and emissions of methanol engines based on active pre-chamber jet ignition technology

Case Studies in Thermal Engineering
Against the backdrop of the ''dual carbon'' goals, this study addressed the challenges of narrow lean-burn limits and low thermal efficiency in conventional spark-ignition (SI) methanol engines by proposing the active pre-chamber jet ignition (APCH-JI ...
Yafeng Ren, Hong Jia, Jiaxin Qin, Qisheng Zhang, Jinyan Du   +4 more
doaj   +1 more source

Lean-burn combustion systems in spark ignitron engines: advantages and limitations

, 2008
Spark-ignited internal combustion engines are in the use for over130 years (first example was presented by Otto in 1876). The engine development is directed to more power, better efficiency and lower emissions.
Jarosiński, J., Gorczakowski, A.
core  

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

Advanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu, Hsi‐wen Wu, Xiao Wang, Jie Zhang   +3 more
wiley   +1 more source

HCNG for Sustainable Emission Reduction in SI Engines

Журнал інженерних наук
As the urgency for environmental protection and the need for alternative energy sources grow, the quest for substitutes for petroleum has become increasingly critical.
Baswana C. S., Narang S. A.
doaj   +1 more source

Polyimide‐Linked Hexaazatriphenylene‐Based Porous Organic Polymer with Multiple Redox‐Active Sites as a High‐Capacity Organic Cathode for Lithium‐Ion Batteries

Advanced Materials, EarlyView.
A high‐capacity polyimide‐linked porous organic polymer (HAT‐PTO) incorporating numerous redox‐active centers is synthesized via a hydrothermal reaction, delivering a high theoretical capacity of 484 mAh g−1. In situ hybridization with carboxyl‐functionalized multiwalled carbon nanotubes enhances conductivity and stability, achieving 397 mAh g−1 at C ...
Arindam Mal, Jonathan Caroni, Asia Patriarchi, Olivera Luzanin, Rafael Ramos, Jan Bitenc, Manuel Melle‐Franco, Manuel Souto   +7 more
wiley   +1 more source