Granulometry
View article
Emergent Properties of Microbial Activity in Heterogeneous Soil Microenvironments: Different Research Approaches Are Slowly Converging, Yet Major Challenges Remain Open
Over the last 60 years, soil microbiologists have accumulated a wealth of experimental data showing that the bulk, macroscopic parameters (e.g., granulometry, pH, soil organic matter, and biomass contents) commonly used to characterize soi…
View article
Iron Ore Tailings: Characterization and Applications Open
Currently, approximately 1.4 billion tons per year of iron ore tailing wastes (IOT) are generated, mainly in Australia, Brazil, and China. This work describes the characterization and application of two typical IOT, i.e., fine and coarse w…
View article
Iron Ore Sintering: Raw Materials and Granulation Open
Sintering is an agglomeration process that fuses iron ore fines, fluxes, recycled products, slag-forming elements and coke. The purpose of sintering is to obtain a product with suitable composition, quality and granulometry to be used as b…
View article
Characterization and Use of Construction and Demolition Waste from South of Brazil in the Production of Foamed Concrete Blocks Open
The main objective of this study was to evaluate the use of construction and demolition waste (CDW) from the Passo Fundo region of Rio Grande do Sul (RS), Brazil, in the development of aerated foamed concrete. This waste had not yet been c…
View article
Patterns of change and continuity in ochre use during the late Middle Stone Age of the Horn of Africa: The Porc-Epic Cave record Open
Ochre is found at numerous Middle Stone Age (MSA) sites and plays a key role in early modern human archaeology. Here we analyse the largest known East African MSA ochre assemblage, comprising 40 kg of ochre, found at Porc-Epic Cave, Ethiop…
View article
UAV-Based Optical Granulometry as Tool for Detecting Changes in Structure of Flood Depositions Open
This paper presents a new non-invasive technique of granulometric analysis based on the fusion of two imaging techniques, Unmanned Aerial Vehicles (UAV)-based photogrammetry and optical digital granulometry. This newly proposed technique p…
View article
Identification of dust storm origin in South –West of Iran Open
The findings, showed the possible correlation between the degree of anthropogenic soil pollutants, and the remains of Iraq-Iran war. The results expressed sand and dust storm emission potential in this area, was illustrated with measured v…
View article
A Study of the Impact of Municipal Solid Waste on Some Soil Physicochemical Properties: The Case of the Landfill of Ain-El-Hammam Municipality, Algeria Open
Discharging of untreated municipal solid wastes (MSWs) onto land is very widespread in developing countries. The compounds contained in MSW cause a harmful effect to human and environment. Hence, an assessment of the extent of their local …
View article
Chemical and Mineralogical Characterization of Recycled Aggregates from Construction and Demolition Waste from Mexico City Open
In this study, four samples of recycled aggregates from the construction and demolition waste of Mexico City were characterized in order to find innovative uses for these types of materials. Gravel and sand from a recycling plant were anal…
View article
Mineralogical properties and internal structures of individual fine particles of Saharan dust Open
Mineral dust interacts with incoming/outgoing radiation, gases, other aerosols, and clouds. The assessment of its optical and chemical impacts requires knowledge of the physical and chemical properties of bulk dust and single particles. De…
View article
Evaluation of a Greek Diatomaceous Earth for Stored Product Insect Control and Techniques That Maximize Its Insecticidal Efficacy Open
Laboratory bioassays were conducted to evaluate the insecticidal efficacy of a diatomaceous earth deposit from Greece, for a wide range of stored product insects. In this context, populations of five different insect species, Tribolium con…
View article
The use of selected research methods to describe the pore space of dolomite from copper ore mine, Poland Open
Basic knowledge of the characteristics of copper-bearing rock such as dolomite is essential to locate those areas of the deposit which have different structural and textural properties. Those regions can be important in terms of the assess…
View article
Mineralogical and morphological properties of individual dust particles in ice cores from the Tibetan Plateau Open
Using a field emission scanning electron microscope and energy-dispersive X-ray spectrometer (FESEM−EDS), individual insoluble dust particles in ice cores recovered from the northern (Dunde), western (Muztagata) and south-eastern (Palong-Z…
View article
Influence of Granulometry on Thermal and Mechanical Properties of Cement Mortars Containing Expanded Perlite as a Lightweight Aggregate Open
This research aims at clarifying the influence of the granulometry of expanded perlite, on the thermal conductivity, structural strength, density, and water absorption of lightweight mortars. Three original perlite gradations have been obt…
View article
Morphological modelling of three‐phase microstructures of anode layers using SEM images Open
Summary A general method is proposed to model 3D microstructures representative of three‐phases anode layers used in fuel cells. The models are based on SEM images of cells with varying morphologies. The materials are first characterized u…
View article
Provenance of Bengal Shelf Sediments: 1. Mineralogy and Geochemistry of Silt Open
This article illustrates a multi-technique frontier approach for the provenance study of silt-size sediments. The mineralogical composition of low-density and heavy-mineral fractions of four samples of fine to very coarse silt deposited on…
View article
Mineralogical and Geochemical Characterization of Talc from Two Mexican Ore Deposits (Oaxaca and Puebla) and Nine Talcs Marketed in Mexico: Evaluation of Its Cosmetic Uses Open
The detailed mineralogical, physical and chemical characterization of nine samples of imported cosmetic talc and of two samples of talc from currently non-productive Mexican ore deposits (Oaxaca and Puebla States) is presented. The importe…
View article
Microplastic distribution and their abundance along rivers are determined by land uses and sediment granulometry Open
Microplastics in freshwater ecosystems have gained attention for their potential impact on biodiversity. Rivers are complex and dynamic ecosystems that transport particles and organic matter from the headwaters through watersheds to the oc…
View article
Towards reconstruction of the lost Late Bronze Age intra-caldera island of Santorini, Greece Open
During the Late Bronze Age, the island of Santorini had a semi-closed caldera harbour inherited from the 22 ka Cape Riva Plinian eruption, and a central island referred to as ‘Pre-Kameni’ after the present-day Kameni Islands. Here, the siz…
View article
Iron Ore Sintering: Environment, Automatic, and Control Techniques Open
Sintering is a process of agglomeration of iron ore fines, fluxes, recycled products, slag-forming elements, and coke with the purpose of achieving an agglomerated product with the suitable composition, quality and granulometry to be used …
View article
The transport of Icelandic volcanic ash: Insights from northern European cryptotephra records Open
Fine ash produced during volcanic eruptions can be dispersed over a vast area, where it poses a threat to aviation, human health, and infrastructure. We analyze the particle size distributions, geochemistry, and glass shard morphology of 1…
View article
ECOLOGICAL STATUS EVALUATION OF ITAIPU LAGOON (NITERÓI) BASED ON BIOCHEMICAL COMPOSITION OF ORGANIC MATTER Open
The variety of approaches for assessing the trophic environmental state indicates that there is a strong need for the identification of new and possibly integrated ecological descriptors in coastal marine areas. These approaches would be a…
View article
Multiscale Three-Dimensional Morphological Characterization of Calcareous Sand Particles Using Spherical Harmonic Analysis Open
Particle morphology is a fundamental inherent property that substantially affects the macroscopic behavior of granular materials. The division and separation of particle morphology at different scale levels contributes to the further multi…
View article
Which variables should be controlled when measuring the granulometry of a chewed bolus? A systematic review Open
The distribution of food particles in a chewed bolus characterizes the food destruction after food oral processing (FOP). Previous reviews report that it could be affected by a lot of parameters as the number of chewing strokes, the dental…
View article
Iron Ore Agglomeration Technologies Open
Until the 1950s of the last century, the oxidized iron ores that were loaded into the blast furnace had granulometries within 10 and 120 mm. However, the depletion of high-grade iron ore sources has made necessary the utilization of concen…
View article
Benefits of Water-Harvesting Systems (Jessour) on Soil Water Retention in Southeast Tunisia Open
In this paper, we quantify the water balance of Jessour at the scale of agricultural plots. Jessour (plural of Jesr) are ancestral hydro-agricultural systems in the Dahar plateau (southeastern Tunisia). They consist of small dams built acr…
View article
Mineralogical, Geochemical and Physico-Chemical Characterization of Clay Raw Materials from Three Clay Deposits in Northern Cameroon Open
The characterization of clay raw materials of three clay deposits from Northern Cameroon was investigated. The three deposits, located in Gaschiga, Sekandé and Boulgou, are locally used as building materials, but no data are available on t…
View article
Thermal Analysis of Granulometry Selected Wood Dust Particles Open
Wood dust is generated as a by-product of machining. This paper discusses the granulometric analysis of selected samples of wood-settled dust from spruce (Picea abies L.), fir (Abies alba Mill.), oak (Quercus petraea Liebl.), beech (Fagus …
View article
SediNet: A configurable deep learning model for mixed qualitative and quantitative optical granulometry Open
I describe a configurable machine-learning framework to estimate a suite of continuous and categorical sedimentological properties from photographic imagery of sediment, and to exemplify how machine learning can be a powerful and flexible …
View article
Testing the effectiveness of mechanical magnetic extraction in riverine and lacustrine sediments Open
Rock magnetic studies often require analysing extracted magnetic grains so that the mineralogy, granulometry, and concentration of magnetic minerals could be determined accurately. Magnetic extraction is often cumbersome, tedious, and subj…