Results 21 to 30 of about 3,940,120 (250)

Multi compression–expansion process for chemical energy conversion: Transformation of methane to unsaturated hydrocarbons and hydrogen

Applications in Energy and Combustion Science, 2023
With the global energy system moving towards renewable energies, there is an increasing demand for flexible conversion processes which can cope with the temporally and locally fluctuating nature of energy supply and energy demand.
Simon Drost, Robert Schießl, Ulrich Maas   +2 more
doaj   +1 more source

Hydrostatic compression on polypropylene foam [PDF]

, 2008
Models currently used to simulate the impact behaviour of polymeric foam at high strain rates use data from mechanical tests. Uniaxial compression is the most common mechanical test used, but the results from this test alone are insufficient to ...
VIOT, Philippe
core   +1 more source

Development of a diesel surrogate for improved autoignition prediction: Methodology and detailed chemical kinetic modeling

Applications in Energy and Combustion Science, 2023
While the surrogate fuel approach has been successfully applied to the simulation of the combustion behaviors of complex gasoline and jet fuels, its application to diesel fuels has been challenging.
Goutham Kukkadapu, Russell Whitesides, Mengyuan Wang, Scott W. Wagnon, Marco Mehl, Charles K. Westbrook, Robert McCormick, Chih-Jen Sung, William J. Pitz   +8 more
doaj   +1 more source

Experimental Investigation and Benchmark Study of Oxidation of Methane–Propane–n-Heptane Mixtures at Pressures up to 100 bar

Energies, 2019
Dual fuel combustion exhibits a high degree of complexity due to the presence of different fuels like diesel and natural gas in initially different physical states and a spatially strongly varying mixing ratio.
Sebastian Schuh, Ajoy Kumar Ramalingam, Heiko Minwegen, Karl Alexander Heufer, Franz Winter   +4 more
doaj   +1 more source

Experimental study of locally loaded timber in compression perpendicular to the grain [PDF]

, 2011
Since the test method for compression strength perpendicular to the grain was changed from a partial area to a full area loading test, strength values for softwood in EN 338 were significantly reduced.
Louis-Etienne Denaud, MARCHAL, Rémy, Robert Collet, DENAUD, Louis, Laurent Bleron, Rémy Marchal, BLERON, Laurent, COLLET, Robert   +7 more
core   +1 more source

Influences of the end of injection and ambient temperature on biodiesel combustion

Journal of Mechanical Engineering and Sciences, 2017
Influence of the injection pressure and ambient temperature at the end of injection of biodiesel spray has been studied using Rapid Compression Machine (RCM). The experiments were conducted on a RCM for the premixed combustion with a single injection at
Norrizam Jaat, Amir Khalid, Mariam Basharie, Azahari Razali, Azwan Sapit, Z. Noranai   +5 more
doaj   +1 more source

Effects of ambient temperature and injection pressure on biodiesel ignition delay

Journal of Mechanical Engineering and Sciences, 2017
Biodiesels are promoted as alternative fuels due to their potential to reduce dependency on fossil fuels. The main problem in diesel combustion chamber design is to understand the importance of interaction phenomenon between fuel spray and surrounding ...
Norrizam Jaat, Amir Khalid, Adiba Rhaodah Andsaler, Azwan Sapit, Azahari Razali, Mariam Basharie   +5 more
doaj   +1 more source

Combustion characteristics of hydrogen in a noble gas compression ignition engine

Energy Reports, 2021
Hydrogen eliminates carbon emissions from compression ignition (CI) engines, while noble gases eliminate nitrogen oxide (NOx) emissions by replacing nitrogen. Noble gases can increase the in-cylinder temperature during the compression stroke due to their
Norhidayah Mat Taib, Mohd Radzi Abu Mansor, Wan Mohd Faizal Wan Mahmood   +2 more
doaj   +1 more source

Standardizing the Ignition Delay Time Measurements of Rapid Compression Machine: An Inverse Application of the Livengood–Wu Integral Method

Energies
The rapid compression machine measures ignition delay time at high pressures and low to intermediate temperatures. However, unavoidable facility effects, such as compression and heat loss, shift the measurements away from ideal (adiabatic and constant ...
Zhonghao Zhao, Yingtao Wu
doaj   +1 more source

Epigenetic reprogramming of lineage switching in cancer

FEBS Letters, EarlyView.
Cancer cells rarely commit to a single identity. Epigenetic mechanisms and tumor microenvironment cues push epithelial cells toward flexible, hybrid states that can shift into mesenchymal, neuroendocrine, or stem‐like fates, driving metastasis, drug resistance, and tumor heterogeneity. Targeting the epigenetic regulators behind these transitions, using
Ezgi Boyvatlı, Burcu Akman, Ezgi Bağırsakçı, Nese Atabey, Serap Erkek‐Ozhan   +4 more
wiley   +1 more source