Results 51 to 60 of about 25,491 (311)

High‐Power Rapid Laser‐Induced Synthesis of Multi‐functional Cobalt Metal‐Organic Framework With an Unprecedented Synthesis Efficiency

open access: yesAdvanced Materials Technologies, EarlyView.
Laser‐assisted synthesis enables rapid (within 1 h) and high‐yield (≥90%) production of Co‐MOFs with mesoporous structures, tunable magnetic and optical properties, and efficient adsorption of N2, CH4, and CO2 for low‐energy gas separation. DFT calculations elucidate the electronic structure and adsorption behavior.
Saliha Mutlu   +10 more
wiley   +1 more source

Computational studies on HCCI engines. [PDF]

open access: yes, 2010
Emission legislation is changing in an effort to reduce exhaust emissions from the IC engines. Research and development has been focused on improving both spark-ignition and compression ignition engines to make them more efficient.
Correia, Eduardo Rodrigues
core  

Waste-to-energy technologies as the future of internal combustion engines

open access: yes, 2023
Syngas has a promising future as alternative to petroleum products and as a fuel for combustion engines. This study provides an overview on the feasibility of using syngas to power internal combustion engines.
Hamid, Mohamad   +3 more
core   +1 more source

The lightweight design of steel pistons for diesel engines based on thermo-mechanical characteristics

open access: yesScientific Reports
Traditional aluminum–silicon alloy pistons are gradually replaced by steel pistons, which has become the trend of future diesel engine development. However, the efficient design and broad application of steel pistons are limited by the higher density of ...
Yang Liu   +5 more
doaj   +1 more source

Optical Analysis of Ignition Sparks and Inflammation Using Background-Oriented Schlieren Technique

open access: yesEnergies
To determine the timing of inflammation in gas and gasoline combustion engines, the point of 10% mass fraction conversion of fuel (MFB10) is commonly used.
Moritz Grüninger   +2 more
doaj   +1 more source

Stretchable and Strain‐Tolerant Gold‐Coated Fibrous Biosensor for Superoxide Anion Monitoring

open access: yesAdvanced Materials Technologies, EarlyView.
A breathable, stretchable gold nanomesh–TPU fiber platform is developed via controlled electroless deposition, enabling uniform through‐thickness conductivity while preserving porosity. Functionalized with superoxide dismutase, the system achieves selective, real‐time electrochemical detection of superoxide with high sensitivity, mechanical durability,
Jafar M. Batayneh, Ahyeon Koh
wiley   +1 more source

The Diesel Fuel Post-Injection into Engine Cylinder as Method of Nox Reduction

open access: yesCommunications, 2003
The possibilities of limiting the emission of nitrogen oxides in the cylinder of the diesel engine by means of its design and operating parameters are limited. This is why studies of the effectiveness of various methods for NOx reduction in exhaust gases
Zygmunt Szlachta, Jerzy Cisek
doaj   +1 more source

Soft Actuators Integrated with Control and Power Units: Approaching Wireless Autonomous Soft Robots

open access: yesAdvanced Robotics Research, EarlyView.
Soft robots exhibit significant development potential in various applications. However, there are still key technical challenges regarding material improvement, structure design and components integration. This review focuses on the development and challenge of soft actuators, power components, and control components in untethered intelligent soft ...
Renwu Shi, Feifei Pan, Xiaobin Ji
wiley   +1 more source

Climate Change Threatens Micronutrient Density of European Winter Wheat

open access: yesAdvanced Science, EarlyView.
Micronutrients are vital for human health. Wheat is a major staple crop and a significant source of minerals and B‐vitamins. The impact of climate change on their content remains largely unknown. We evaluated micronutrient levels in European winter wheat grown under historical and projected climate conditions. Our findings indicate that future climates
Da Cao   +17 more
wiley   +1 more source

Characterisation of Acoustic Emissions for the Frictional Effect in Engines using Wavelets based Multi-resolution Analysis [PDF]

open access: yes, 2015
The friction between piston ring-cylinder liner is a major cause of energy losses in internal combustion engines. However, no experimental method is available to measure and analyze the fictional behavior. This paper focuses on the investigation of using
Gu, Fengshou   +14 more
core   +1 more source

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