Results 71 to 80 of about 2,115,373 (378)

Use of consumer-grade cameras to assess wheat N status and grain yield [PDF]

open access: yes, 2019
Relationships between (a) fractional Intercepted PAR (fIPAR), and (b) aboveground biomass (Biomass) and (c) grain yield at harvest with the Normalized Difference Vegetation Index (NDVI) derived either from a spectroradiometer or a conventional camera at ...
Fernández Murcia, Enric   +2 more
core   +4 more sources

Understanding the Chemical and Electronic Properties of Sub‐Monolayer TiO2 on High Surface Area Silica for Jet Fuel Synthesis Applications

open access: yesAdvanced Functional Materials, EarlyView.
Sub‐monolayer titania grafted onto mesoporous silica enables solvent‐free photocatalytic upgrading of furfural and cyclopentanone into jet fuel precursors. Advanced spectroscopic methods reveal tunable surface speciation, acidity, and bandgaps, enhancing catalytic efficiency.
Mark A. Isaacs   +12 more
wiley   +1 more source

Torrefaction of biomass: influence of operating conditions on products and grindability [PDF]

open access: yes, 2011
Biomass is a renewable fuel, increasingly considered as an important resource for alternative fuels with significant environmental advantages. Thermo-chemical conversion of biomass is a mean to produce energy and to reduce greenhouse gases.
Commandre, Jean-Michel, Rousset, Patrick
core  

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

open access: yesAdvanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong   +3 more
wiley   +1 more source

Evaluation of a two-phase extraction system of carbohydrates and proteins from chlorella vulgaris utex 1803 [PDF]

open access: yes, 2016
Microalgae are a valuable source of high-value products and biofuels, however the high-energy cost required for the extraction of their metabolites has kept questioning on possible industrial upgrading. The aim of this study was to evaluate the effect of
Andrés, F.   +7 more
core   +1 more source

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

open access: yesAdvanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida   +16 more
wiley   +1 more source

Effect of Growing Season on Growth and Relation of Height and Above Ground Biomass of Avicennia Marina [PDF]

open access: yes, 2015
Relation of height of seedling stands and above ground biomass is an important indicator of successful stand establishment and effectivity of carbon cycle which requires further study. This research aimed to study the growth level
Budihastuti , Rini
core  

Unassisted Photoelectrochemical Hydrogen Production Coupled with Selective Glucose Oxidation Using Metal Halide Perovskite Photoanodes

open access: yesAdvanced Functional Materials, EarlyView.
A metal halide perovskite‐based photoanode integrated with a CoNiFe layered double hydroxide (LDH) cocatalyst is reported for selective glucose oxidation reaction (GOR), achieving simultaneous and unassisted photoelectrochemical hydrogen production. This system delivers high photocurrent density, excellent Faradaic efficiency of GOR, and strong techno ...
Shujie Zhou   +12 more
wiley   +1 more source

Optimization of the Factors Affecting Biogas Production Using the Taguchi Design of Experiment Method

open access: yesBiomass
The present study analyzed the effect of temperature, pH, pre-treatment and mixing ratio on the anaerobic digestion process. The parameters during the anaerobic co-digestion of cow manure and food waste were then optimized using the Taguchi experimental ...
Sidahmed Sidi Habib   +3 more
doaj   +1 more source

A review on biomass: importance, chemistry, classification, and conversion

open access: yesBiofuel Research Journal, 2019
Biomass is currently the most widespread form of renewable energy and its exploitation is further increasing due to the concerns over the devastative impacts of fossil fuel consumption, i.e., climate change, global warming and their negative impacts on ...
A. Tursi
semanticscholar   +1 more source

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