Results 21 to 30 of about 5,881,026 (232)

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

open access: yesEnergies
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   +8 more
doaj   +1 more source

Lean ammonia-fueled engine operation enabled by hydrogen-assisted turbulent jet ignition

open access: yesFrontiers in Mechanical Engineering
Anhydrous ammonia (NH3) use in internal combustion engines represents a zero-carbon energy solution that is fully sustainable if NH3 is generated renewably.
Shawn A. Reggeti, William F. Northrop
doaj   +1 more source

Epigenetic silencing of the liver‐specific lncRNA LUNAR promotes liver cancer progression via NOTCH activation

open access: yesMolecular Oncology, EarlyView.
LUNAR is a liver‐specific long noncoding RNA (lncRNA) that is highly expressed in normal liver but becomes epigenetically silenced in hepatocellular carcinoma through promoter hypermethylation. Loss of LUNAR is associated with NOTCH activation, epithelial–mesenchymal transition, and metastasis, whereas restoring LUNAR restrains metastatic progression ...
Se Ha Jang   +9 more
wiley   +1 more source

Experimental Study of the Performance of Turbo-Charged Gasoline Direct-Injection Engine Based on Different Pre-Chamber Structures

open access: yesEnergies
In this paper, in order to improve the fuel economy of the actual application of the engine under multi-operating conditions, an experimental study is carried out on a turbo-charged direct-injection engine based on different pre-chamber structures.
Xiaowei Zhao   +3 more
doaj   +1 more source

THE IMPORTANCE OF PRE-TRIAL CHAMBER IN CRIMINAL PROCEEDINGS. PROCEDURE AND CONTROVERSIAL ISSUES [PDF]

open access: yesChallenges of the Knowledge Society, 2022
Following a legislative proposal to eliminate the pre-trial chamber phase from the criminal proceedings, I decided to study its properties and express my opinion on its importance. Analyzing the pre-trial chamber and the trial procedure, I found that its
Mirel Georgian PETRE
doaj  

CEACAM1 participation in breast cancer progression

open access: yesMolecular Oncology, EarlyView.
In invasive breast cancer (BC), CEACAM1 shifts from an apical to a uniform membranous/cytoplasmic pattern, or is lost, as tumors dedifferentiate, inversely tracking the Ki‐67 proliferative index. In MCF‐7 cells, only CEACAM1‐4L suppresses proliferation, repressing cell cycle and growth factor genes.
Mykola Lyndin   +3 more
wiley   +1 more source

Experimental Study of Air and EGR Dilution in a Pre-Chamber Spark-Ignited Engine Fueled by Methane

open access: yesApplied Sciences
Improving the efficiency of spark-ignited (SI) engines while simultaneously reducing emissions remains a critical challenge in meeting global energy demands and increasingly stringent environmental regulations.
Viktor Dilber   +3 more
doaj   +1 more source

Optimization of combustion organization scheme for pre-combustion chamber of pre-cooled engine

open access: yesScientific Reports, 2023
Pre-cooled engines, in which the incoming air is cooled by a pre-cooler before it enters the subsequent components for operation, are one of the important developments in combined power solutions. Therefore, how to optimize the gas temperature uniformity
Nanjia Yu   +5 more
doaj   +1 more source

Comparative Study of Spark-Ignited and Pre-Chamber Hydrogen-Fueled Engine: A Computational Approach

open access: yesEnergies, 2022
Hydrogen is a promising future fuel to enable the transition of transportation sector toward carbon neutrality. The direct utilization of H2 in internal combustion engines (ICEs) faces three major challenges: high NOx emissions, severe pressure rise ...
Hammam Aljabri   +9 more
doaj   +1 more source

Extracellular vesicle lipidomics liquid biopsy reveals systemic and tumor microenvironment metabolic reprogramming in ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Extracellular vesicle (EV) lipidomic profiling of plasma and ascites from patients with high‐grade serous ovarian cancer and of ovarian cancer cell lines reveals enrichment of triglycerides (TGs), diacylglycerols (DGs), phosphatidylcholine (PCs), sphingomyelins (SMs), reflecting tumor metabolic reprogramming.
Shikha Rani   +9 more
wiley   +1 more source

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