Results 21 to 30 of about 218,743 (211)

Thermal Behavior and Hydrogen Production of Methanol Autothermal Reforming Performed Using Oxygen Enrichment and Cu/ZnO/Al2O3/Cr2O3/CeO2 Catalyst

open access: yesBulletin of Chemical Reaction Engineering & Catalysis, 2015
A fixed-bed reactor designed for the autothermal reforming (ATR) of methanol under adiabatic conditions was constructed to experimentally determine the profile of temperature and catalyst activity generated using the Cu/ZnO/Al2O3/Cr2O3/CeO2 catalyst. The
Donny Lesmana, Ho-Shing Wu
doaj   +1 more source

Comparison of the Effects of Hydrogen and Hydroxygen Additions and Oxygen Enrichment on the Emission Characteristics of EF7 Engine [PDF]

open access: yesJournal of Renewable Energy and Environment, 2019
In this study, the effects of hydrogen and hydroxygen additions and oxygen enrichment on the emission characteristics of a gasoline engine (EF7) were investigated and compared with each other.
Reza Rahimi, Alireza Shirneshan
doaj   +1 more source

Ultrafine Particulate Matter in Methane-Air Premixed Flames With Oxygen Enrichment

open access: yesFrontiers in Mechanical Engineering, 2021
A complementary computational and experimental study is carried out on the formation of ultrafine particulate matter in premixed laminar methane air flames.
Shruthi Dasappa   +2 more
doaj   +1 more source

Optimization of phosphate oxygen isotope pretreatment measurement method based on phosphate in situ enrichment blanket

open access: yesWater Science and Technology, 2023
Phosphate oxygen isotope analysis is an effective tool for investigating phosphorus migration and transformation in water bodies. Unfortunately, current pretreatment methods for this technology are significantly limited due to their demanding sample ...
Sumei Li   +5 more
doaj   +1 more source

IMPROVING THE EFFICIENCY OF IN-SITU URANIUM LEACHING VIA OXYGEN-ENRICHED LIXIVIANT INJECTION

open access: yesRudarsko-geološko-naftni Zbornik
This paper explores the optimization of in-situ uranium leaching efficiency through the application of oxygen as an oxidizing agent in the lixiviant. With this objective in mind, geological characteristics of the target site were examined, followed by a ...
Khalidilla Yussupov   +4 more
doaj   +1 more source

Self-Enrichment in Globular Clusters: The Crucial Role Played by Oxygen

open access: yesUniverse, 2023
Results from photometry and high-resolution spectroscopy have demonstrated the existence of multiple populations in globular clusters, where one or more stellar generations of stars coexist with the original population.
Erendira Huerta-Martinez   +2 more
doaj   +1 more source

Oxidation of Ti–6Al–4V alloy between 450 and 600°C. Evolution of microstructure and mechanical properties [PDF]

open access: yesMATEC Web of Conferences, 2020
Titanium alloys are widely used in many applications thanks to their good corrosion resistance and to their high specific modulus. However, at temperatures above 450°C, oxidation must be taken into account to improve life assessment of components ...
Poquillon Dominique   +4 more
doaj   +1 more source

Effect of DFPP on Ferroptosis in Peripheral Blood CD14+ Monocytes of Hyperlipidemic Patients Involving the ACSL4/LPCAT3/ALOX5 Pathway

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Hyperlipidemia is a major risk factor for atherosclerotic cardiovascular disease (ASCVD). Although statins are the cornerstone of lipid‐lowering therapy, their use may be limited in some patients by adverse effects. This study evaluated the possible impact of non‐drug treatment using double‐filtration plasmapheresis (DFPP) on CD14+
Yun Cheng   +3 more
wiley   +1 more source

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

open access: yesFEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

Study on the Effect of High-Concentration Oxygen Enrichment on Engine Performance and Exhaust Emissions Using Diesel Fuel and Palm Biodiesel Substitute Fuel

open access: yesEnergies
Air pollution remains a big issue in many countries. One form of air pollution comes from the use of fossil fuels as the primary fuel in the power generating and transportation sectors.
Fariza Almira Ghany   +8 more
doaj   +1 more source

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