Results 131 to 140 of about 22,138,923 (333)

Towards cycle-to-cycle control: AI-based heat release rate prediction of a diesel engine operated in low temperature combustion mode

open access: yesInternational Journal of Thermofluids
Recent market trends suggest that internal combustion engines will still have a significant role in transportation. Commercial diesel engines have to be further developed to meet strict environmental legislation. Low temperature combustion (LTC) is a new
Márton Virt, Máté Zöldy
doaj   +1 more source

Thermodynamics of Combustion Gases From LPG Propane-Butane [PDF]

open access: yesTransactions of the VŠB-Technical University of Ostrava, Mechanical Series, 2010
Liquefied LPG is a mixture of good quality hydrocarbons, propane and butane without inert gases. In their paper the authors would like to present the methodology for derivation of all necessary thermodynamic parameters of combustion gases of LPG and ...
Ivan VITÁZEK, Juraj HAVELKA
doaj  

Generalized Mechanism Model for Ecosystem Hysteresis

open access: yesAdvanced Science, EarlyView.
A simplified model examines ecosystem transitions into alternative states after disturbances by leveraging positive and negative feedbacks. It identifies critical tipping points and quantifies hysteresis. Tests conducted on lakes, grasslands, and pitcher‐plant leaves align closely with empirical data and enable the prediction of recovery trajectories ...
Yanbin Hao   +9 more
wiley   +1 more source

Edible Pneumatic Battery for Sustained and Repeated Robot Actuation

open access: yesAdvanced Science, EarlyView.
This work presents an edible energy source and valve system to power soft, pneumatically driven edible robots. A chemical reaction between sodium bicarbonate and citric acid generates carbon dioxide gas, and a pressure‐triggered edible valve enables self‐repetitive motion of the edible actuator.
Bokeon Kwak   +5 more
wiley   +1 more source

An Advanced High‐Performance Ultrafast Ammonium‐Ion Aqueous Battery Based on Dual‐Metal Redox Open Framework Molecular Magnet

open access: yesAdvanced Science, EarlyView.
The Prussian Blue Analogue molecular magnet KMnFeHCF is demonstrated as a high‐performance cathode for ultra‐fast aqueous ammonium‐ion batteries. A full cell using KMnFeHCF and graphite delivers ~71 mAh g−1 at 1.25 A g−1 and ~51 mAh g−1 at 2.2 A g−1, retaining 50% capacity after 1850 cycles. Its scalability, cycling stability, and low cost offer strong
Nilasha Maiti   +5 more
wiley   +1 more source

The concrete structure remedial assessements in marine environment from whole life asset management perspectives [PDF]

open access: yes, 2008
This study makes use of a desk top review methodology to discover and understand the remedial assessment of damage concrete structures in the marine environment (sea water). Basically, the restorations of asset marine facility are done by using a correct
Mohd Salleh, Mohd Rezal
core  

From Pores to Pavement: Advanced Modeling of Aluminosilicates for Scalable Carbon Capture in Concrete

open access: yesAdvanced Science, EarlyView.
This study presents a transferable modeling framework for carbon capture using aluminosilicates, integrating Universal Isotherm Modeling with experimental data. It reveals how ultramicropores, alumina content, and amine functionalization influence CO2 adsorption energetics.
Pooja Anil Kumar Nair   +4 more
wiley   +1 more source

Valve recession: From experiment to predictive model

open access: yes, 2004
Increasing demands on engine performance and cost reductions have meant that advances made in materials and production technology are often outpaced This frequently results in wear problems occurring with engine components.
Brooks, A.   +3 more
core  

Tailoring Sieving Pores and Electrochemical Interface Intercalation for Mechanically Resilient Recycled Micro‐Silicon Anodes

open access: yesAdvanced Science, EarlyView.
Here, an innovative strategy is proposed, using micron‐sized Si recovered from photovoltaic waste as raw material, combined with electrochemical lithium alloying, reacting with CO2 to obtain sieve‐like porous structure design to overcome mechanical dynamic limitations.
Yunan Wei   +4 more
wiley   +1 more source

PHYSICAL AND NUMERICAL MODELLING OF HEAT-FLOW PROCESSES IN TANGENTIALLY PULVERIZED FUEL-FIRED BOILER

open access: yesTASK Quarterly, 2003
The paper presents results of three-dimensional physical modelling and computer simulations of fluid-flow structures, mixing and combustion processes in a 125MW tangentially fuel-fired boiler and additional fuel – natural gas.
JACEK BARAŃSKI   +2 more
doaj  

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