Results 71 to 80 of about 2,463,737 (363)

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

Development of a spark discharge model for predicting ignition stability in high EGR conditions in SI engines

open access: yesNihon Kikai Gakkai ronbunshu
Recently, EGR (Exhaust Gas Recirculation) combustion has been used to enhance the thermal efficiency of internal combustion engines. However, EGR combustion causes ignition instability, leading to increased cycle-to-cycle combustion variability and ...
Ryo ADACHI   +4 more
doaj   +1 more source

Water Injection Effects on the Performance and Emission Characteristics of a CI Engine Operating with Biodiesel

open access: yes, 2012
Biodiesel is one of the most promising renewable, alternative and environmentally friendly biofuels that can be used in diesel engine without any need for any modification in the engine.
Gu, Fengshou   +11 more
core   +1 more source

Phosphoinositides and inositol phosphates as molecular glues

open access: yesFEBS Letters, EarlyView.
Inositol phosphates (IPs) and phosphoinositides (PIPs) regulate diverse eukaryotic processes. Beyond recruiting signaling proteins or acting as structural cofactors, recent studies suggest they mediate protein–protein interactions as natural molecular glues.
Aleshia Seaton‐Terry   +9 more
wiley   +1 more source

Comparative Study of Performance and Emission Characteristics between Spark Ignition Engine and Homogeneous Charge Compression Ignition Engine (HCCI)

open access: yesAl-Khawarizmi Engineering Journal, 2017
Many researchers consider Homogeneous Charge Compression Ignition (HCCI) engine mode as a promising alternative to combustion in Spark Ignition and Compression Ignition Engines. The HCCI engine runs on lean mixtures of fuel and air, and the combustion is
Nahedh Mahmood Ali
doaj   +1 more source

In-cylinder fuel and lubricant effects on gasoline engine friction [PDF]

open access: yes, 2007
The purpose of the research reported in this thesis was to investigate the viability and quantify the potential gains of improving fuel economy of the gasoline engine through strategic application of additives.
Smith, Oiver Mark Edward   +1 more
core  

Mixed‐class J‐domain protein scaffolds promote expanded aggregate handling and multivalent Hsp70 engagement during functional disaggregase assembly

open access: yesFEBS Letters, EarlyView.
Protein aggregates threaten proteostasis and cell health. In human cells, Hsp70–J‐domain protein‐based disaggregases remove aggregates, but how they assemble remains unclear. Our biochemical findings show that DNAJA2‐ and DNAJB1‐containing disaggregase scaffolds enhance luciferase aggregate targeting, and that Hsp70 recruitment by both J‐domain ...
Anna Szlachcic, Nadinath B. Nillegoda
wiley   +1 more source

Converting compression ignition engine to dual-fuel (diesel + CNG) engine and experimentally investigating its performance and emissions

open access: yesOpen Agriculture
One of the suitable solutions for burning natural gas in diesel engines is the use of dual-fuel technology. In this study, the MT440C compression ignition engine has been converted to dual fuel (diesel + CNG) simultaneously combustion of diesel fuel and ...
Niknam Yasser   +2 more
doaj   +1 more source

Parametric Knocking Performance Investigation of Spark Ignition Natural Gas Engines and Dual Fuel Engines

open access: yesJournal of Marine Science and Engineering, 2020
Both spark ignition (SI) natural gas engines and compression ignition (CI) dual fuel (DF) engines suffer from knocking when the unburnt mixture ignites spontaneously prior to the flame front arrival. In this study, a parametric investigation is performed
La Xiang   +5 more
doaj   +1 more source

INVESTIGATIONS ON WEAR AND FRICTION IN THE SI ENGINE VALVETRAIN

open access: yesMechanical Testing and Diagnosis, 2018
The engine valvetrain system operating under conditions of insufficient oil lubrication, caused by incorrect installation of the gasket between the block and the head, was tested. The aim of the analysis was to determine the wear intensity and resistance to motion in camshaft bearings.
Marek WOŹNIAK   +5 more
openaire   +2 more sources

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