Economía Circular

 

Economía Circular

Metal variability of the shrimp Palaemon elegans across coastal zones: anthropogenic and geological impacts
03/10/2024 - This study focused on 120 specimens of the shrimp Palaemon elegans collected in intertidal zones in eight selected areas. This study aimed to assess the suitability of P. elegans as a bioindicator...
A comparative study between the efficacy of fertigation and spraying procedures in terms of the content of Cadmium (Cd) and Arsenic (As) in greenhouse cucumber
03/10/2024 - A comparative study between fertigation and spraying procedures in terms of the status of Cadmium (Cd) and Arsenic (As) in greenhouse cucumber was conducted as a two-factor split plot based on a...
Seasonal variability of microplastic contamination in marine fishes of the state of Gujarat, India
03/10/2024 - Seasonal variation in microplastics abundance, occurrence, and distribution in pelagic and demersal fishes was observed in this study during December 2021 to November 2022. One hundred percent...
A probabilistic framework for identifying anomalies in urban air quality data
02/10/2024 - Just as the value of crude oil is unlocked through refining, the true potential of air quality data is realized through systematic processing, analysis, and application. This refined data is...
Frog hepatic health and metal pollution: An assemblage-level approach in a hotspot in southeastern Brazil
02/10/2024 - Chemical pollutants include the harmful effects of various substances on soils, water bodies, and biodiversity. Amphibians are one of the most endangered groups of vertebrates and are impacted by...
Research Progress on Sound Absorption of Fiber-Based Materials and Their Composites
03/10/2024 - Compared with traditional materials, fiber-based materials have the advantages of light weight, easy processing and low cost, which make them have great application potential in the field of noise...
Properties and microstructure of fly ash geopolymer modified with beta-phosphogypsum
23/09/2024 - Abstract Phosphogypsum (PG), a by-product of the phosphate industry, poses environmental pollution due to long-term solid waste accumulation caused by natural processes. In this...
Facile preparation of TPU/PCL/carbon nanotubes double-percolation conductive nanocomposite and evaluation of the application as flexible sensors for rapid and selective response in volatile organic compounds
23/09/2024 - Abstract Severe environmental pollution resulting from improper emissions of volatile organic gases (VOCs) has posed significant menaces to human health, ecosystem security, and...
Preparation and characterization of pyrimidine?cored covalent organic frameworks for heavy metal removal
01/10/2024 - In this work, two novel pyrimidine?cored covalent organic frameworks TpTap?COF and TpTan?COF were synthesized for the first time and used for the adsorption of heavy metal ions in aqueous solution....
Glass fiber reinforced PA6 composites with high strength and high flowability by hyperbranched polyesters
21/09/2024 - Lightweighting of automotives is one of the efficient strategies to save energy and reduce CO2 emission and environmental pollution. Glass fiber reinforced polyamide composites (PA/GF) have accounted...
Is poly(propylene carbonate) biodegradable? Synthesis of poly(propylene carbonate)?containing star and block copolymers and comprehensive investigation on their biodegradation
07/08/2024 - Storing CO2 and converting it into valuable substances are crucial for addressing climate change. While poly(propylene carbonate) (PPC), formed through the copolymerization of CO2 and propylene...
Thermal, mechanical, flammability properties, and morphologies of polypropylene/calcium carbonate?based on carbon nanomaterials and layered silicates composites: A future perspective of new sheet material for flooring application
26/09/2024 - Flooring materials reinforced with flame retardants fabricated by extrusion process.Polyvinyl chloride/calcium carbonate (PVC/CaCO3) composites are widely used in the construction industry to...
Biodegradable and antioxidant lignin-adsorbed polylactic acid microparticles for eco-friendly primary microparticles
13/09/2024 - The severity of environmental and ecological pollution caused by microplastics has become a prominent global concern. In this study, we prepare biodegradable microplastics to replace primary...
Aerospace, Vol. 11, Pages 747: A Neural Network with Physical Mechanism for Predicting Airport Aviation Noise
12/09/2024 - Airport noise prediction models are divided into physics-guided methods and data-driven methods. The prediction results of physics-guided methods are relatively stable, but their overall prediction...
Aerospace, Vol. 11, Pages 770: An Interval Neural Network Method for Identifying Static Concentrated Loads in a Population of Structures
19/09/2024 - During the design and validation of structural engineering, the focus is on a population of similar structures, not just one. These structures face uncertainties from external environments and...
Aerospace, Vol. 11, Pages 788: Design and Experimental Validation of an Adaptive Multi-Layer Neural Network Observer-Based Fast Terminal Sliding Mode Control for Quadrotor System
24/09/2024 - This study considers the numerical design and practical implementation of a new multi-layer neural network observer-based control design technique for unmanned aerial vehicles systems. Initially, an...
Aerospace, Vol. 11, Pages 810: Analyzing the Indirect Effects of Lightning on Unmanned Aerial Vehicle Navigation Receivers
02/10/2024 - To investigate the interference effects of lightning on unmanned aerial vehicle (UAV) navigation receivers, an analytical approach for the evaluation of indirect lightning effects is suggested. The...
Aerospace, Vol. 11, Pages 730: Experimental Investigation of Rotor Noise in Reverse Non-Axial Inflow
06/09/2024 - This paper experimentally characterises the far-field noise emissions of a rotor operating in reverse non-axial inflow conditions. Specifically, experiments were undertaken at a range of rotor...
Impact of Farmers’ Participation in the Transformation of the Farmland Transfer Market on the Adoption of Agricultural Green Production Technologies
25/09/2024 - Exploring the adoption of green production technologies by farmers (GTA) is of great significance, given the context of global climate change and sustainable agricultural development. This article...
A Risk Assessment Method for Phosphorus Loss in Intensive Agricultural Areas—A Case Study in Henan Province, China
26/09/2024 - Agricultural phosphorus (P) loss constitutes a significant factor in agricultural non-point source pollution (ANSP). Due to the widespread occurrence and complexity of ANSP, emphasis on risk...
Smallholder Farmers’ Climate Change Adaptation Strategies and Their Effect on Household Food Security: Evidence from KwaZulu-Natal, South Africa
01/10/2024 - Climate change poses a significant risk to the long-term viability of smallholder agriculture in developing countries. Climate change has a direct effect on agricultural output, ultimately impacting...