Buscar
Mostrando ítems 121-130 de 226
Promotion of Circular Economy: Steelwork Dusts as Secondary Raw Material in Conventional Mortars
(MDPI, 2018)
Among the actions proposed by the European Union for the implementation of Circular Economy
is the use of waste as a secondary raw material (SRM). During the fusion of the scrap, a steel dust is generated,
named Electric ...
Eco-Efficient Cement-Based Materials Using Biomass Bottom Ash: A Review
(MDPI, 2020)
In recent years the use of biomass for electricity generation in thermal and cogeneration plants has increased worldwide because it is an environmentally clean fuel whose impact measured in greenhouse gas emissions is ...
Properties of Non-Structural Concrete Made with Mixed Recycled Aggregates and Low Cement Content
(MDPI, 2016)
In spite of not being legally accepted in most countries, mixed recycled aggregates (MRA)
could be a suitable raw material for concrete manufacturing. The aims of this research were as follows:
(i) to analyze the effect ...
Influence of Short Carbon-Chain Alcohol (Ethanol and 1-Propanol)/Diesel Fuel Blends over Diesel Engine Emissions
(MDPI, 2021)
Oxygenated fuels, in this case short carbon-chain alcohols, have been investigated as alternative fuels to power compression ignition engines. A major advantage of short-chain alcohols is that they can be produced from ...
An Approach to Precise Nitrogen Management Using Hand-Held Crop Sensor Measurements and Winter Wheat Yield Mapping in a Mediterranean Environment
(MDPI, 2015)
Regardless of the crop production system, nutrients inputs must be controlled at
or below a certain economic threshold to achieve an acceptable level of profitability. The
use of management zones and variable-rate ...
Optimization of the Transesterification of Waste Cooking Oil with Mg-Al Hydrotalcite Using Response Surface Methodology
(MDPI, 2018)
Nowadays, biodiesel has become a very promising alternative to fossil diesel fuel, regarding
environmental concerns and fuel resource depletion. Biodiesel is usually produced through
homogeneous or heterogeneous ...
Vibration Monitoring of the Mechanical Harvesting of Citrus to Improve Fruit Detachment Efficiency
(MDPI, 2019)
The introduction of a mechanical harvesting process for oranges can contribute to enhancing farm profitability and reducing labour dependency. The objective of this work is to determine the spread of the vibration in citrus ...
Feasibility of Using Unbound Mixed Recycled Aggregates from CDW over Expansive Clay Subgrade in Unpaved Rural Roads
(MDPI, 2016)
Social awareness aims to increase practical skills, such as sustainable development, which
seeks to increase the use of different types of waste in construction activities. Although insufficient
attention is sometimes ...
Multifractal Characterization of Seismic Activity in the Provinces of Esmeraldas and Manabí, Ecuador
(MDPI, 2019)
Due to the enormous impact of seismic activity and the need to deepen knowledge of its behavior, this research work carries out an analysis of the multifractal nature of the magnitude, inter-distance and interevent time ...
Catalogue of Pavements with Recycled Aggregates from Construction and Demolition Waste
(MDPI, 2018)
Construction and Demolition Waste come from debris generated during construction, renovation and demolition of buildings, roads, and bridges. Recycling and reuse are essential in terms of sustainability, mainly from an ...