Porosity structures

This article gives an overview of popular geophysical methods being applied in agriculture in several countries to characterize and monitor soil properties such as moisture, salinity, density, texture, structure, porosity, etc.

13p viwalton 02-07-2024 2 1   Download

Ebook "Porosity: Establishing the relationship between drying parameters and dried food quality" provides a comprehensive overview of porosity's effects on dried food quality. The factors influencing porosity during the various drying methods are explored in depth, as well as porosity's overall effect on food properties. The chemical reaction and stability of porosity are also covered, including sensory and mechanical properties. The work looks closely at the relationship between drying conditions, pore characteristics, and dried food quality.

81p tracanhphuonghoa1007 22-04-2024 2 2   Download

In ebook "Pore structure in food: Simulation, measurement and applications" the pore structure of foods directly affects the success of such food processes as drying, puffing, freeze-drying, and rehydration. Consequently, the pore structure of foods determines what types of food processes will work best with a particular food. This Brief will first discuss in depth the need to correctly measure the pore structure of foods and then will identify and describe in detail the current methods available to measure food porosity. Finally, it will review the applications of these various methods. ​

54p coduathanh1122 27-03-2024 6 1   Download

Part 1 book "Principles of soil physics" includes content: Importance of soil physics; basic definitions and concepts - soil components and phases; soil solids; soil structure; porosity; manifestations of soil structure; soil strength and compaction; soil rheology and plasticity; water; soil’s moisture content.

315p muasambanhan07 08-02-2024 1 0   Download

Continued part 1, part 2 of ebook "Industrializing additive manufacturing — Proceedings of additive manufacturing in products and applications (AMPA2017)" provides readers with contents including: process chain integration; additive manufacturing on 3D surfaces; quality assurance; business cases; controlled porosity structures in aluminum and titanium alloys by selective laser melting; temperature monitoring of an SLM part with embedded sensor;...

230p lytamnguyet 04-08-2023 6 4   Download

Metaleorganic frameworks (MOFs) with tunable structures, high porosity, and abundant active sites are considered to be promising drug delivery systems (DDSs). In this study, novel MOFs-based nanoparticles (CUR@IRMOF-16) were successfully prepared using Zn-based IRMOF-16 as a carrier and curcumin (CUR) as the model drug.

13p viberbers 09-08-2023 4 1   Download

Metaleorganic frameworks (MOFs) are increasingly employed in designing an active material for various battery systems due to the variety of structures, morphology, and controllable composition at a molecular level. Moreover, their high porosity enables a facile electrolyte penetration and ion transportation.

9p viberbers 09-08-2023 6 3   Download

Novel ceramic structures with multi-scalar porosity were developed using a single preceramic poly(vinyl)silazane to generate asymmetric Si-C-N-based membranes through pyrolytic conversion. Macroporous supports in planar-disc configuration were prepared through a sacrificial filler approach, intermediate structures and microporous layers were deposited via dip-coating.

9p vironald 15-12-2022 5 2   Download

The increasing complexity in composition and structure of modern porous nanocomposite materials requires the development of advanced technologies that allow the simultaneous treatment of dissimilar compounds, not only with unlike composition but also involving different classes of pores, e.g., micro and mesopores.

10p vironald 15-12-2022 8 2   Download

Identification of fracture zone is a challenging task without the image log data. There are many brownfields around the world where the image log has not been acquired; therefore, there must be an alternative way of fracture identification. In this paper, a conventional log response technique for fracture delineation has been discussed. The study area lies in the Upper Indus Basin of Pakistan, which is sub-divided into the Kohat and Potwar basins. Minwal-X-1 of Joya Mair area, which lies in the Potwar Basin, is selected for this purpose.

15p tanmocphong 29-01-2022 34 1   Download

The developed and implemented DEM-based strategy is applied to analyze stiffness and strength of inverse opals made of pure silica and inverse opals coated with titania layers of various thicknesses. Also, the influence of the porosity of the initial packing on the properties of the material is investigated.

14p guernsey 28-12-2021 4 0   Download

A three-dimensional reduced graphene oxide/nickel-cobalt sulfide (RGO/NiCo2S4) aerogel was fabricated by an efficient and facile one-step hydrothermal approach. The NiCo2S4 needle-like structure consisted of many small nanoparticles well attached to the surface of the RGO sheet. The prepared aerogel had high porosity and conductivity.

9p meyerowitz 25-12-2021 9 0   Download

In this paper, effect of porosity on nonlinear analysis of plate structures is presented. Two porous distributions are considered. Governing equations are expressed by using isogeometric analysis (IGA) and the third-order shear deformation theory (TSDT). With these approaches, it is easy to fulfil the C1-continuity requirement of the plate model.

3p viwilliamleiding 10-12-2021 8 1   Download

This study reports the effect of vanadium on the crystal structure and electrical and electrochemical properties of La0.6−x VxSr0.4MnO3−δ (x = 0.005–0.1) perovskite-based cathode materials in solid oxide fuel cells. Crystal structure, morphology, and porosity of prepared cathode materials are characterized by X-ray diffraction, X-ray photoelectron spectroscopy (XPS), and scanning electron microscopy. Using XPS analysis it was established that the La3+ cation is exchanged by the V4+/5+ cation in the perovskite structure.

31p tudichquannguyet 29-11-2021 11 2   Download

The present paper aimed at the investigation of the effect of preliminary acid treatment on the structure and purity of extracted silica. In this study, the acid leaching of rice husk (RH) in 2 M hydrochloric acid solution before the calcination process at 600◦C was proposed to achieve completely white silica with high specific surface area and low content of impurities. RH, selected from the Almaty Region, Kyzylorda Region, and Turkestan Region was used as the main silica source. The results confirmed that the highest purity (98.2%–99.

12p tudichquannguyet 29-11-2021 8 1   Download

In addition, the displacement field of THSDT needs the high continuity in approximated formulation with high-order derivatives for a weak form of fourth order equation. According to IGA formulation based on the generalized THSDT, the shear locking phenomenon is free. The variables of THSDT are less than HSDTs which contain five DOFs per node. The influences of weight fractions, the coefficient porosity, dispersion patterns of GPLs and distribution types of porosity on structure’s natural frequencies are studied through some numerical examples.

16p chauchaungayxua12 09-07-2021 13 2   Download

The existence of shale has a major effect on reservoir quality because it reduces the rock’s both the porosity and permeability. There are several types of shale, and they can be distributed in the sand in four different ways: laminated, structural, dispersed, or any combination of these. Each of them has various features and physical properties. Therefore, shale volume estimation is one ofthemostimportant and challengin tasksto be solved information evaluation.

7p cothumenhmong12 08-07-2021 27 2   Download

In the study soil surveys conducted and GPS based soil samples were collected from each domain viz., Bhopal, Hoshangabad, Vidisha and Jabalpur of AESR 10.1 region.and for bulk density (BD), total porosity (TP), particle size distribution (Sand, Silt, Clay), analyzed then aggregate stability (AS) and structural stability index (SSI) were estimated in the Department of Soil Science and Agricultural Chemistry Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur during 2018-2020.

28p cothumenhmong11 11-05-2021 13 1   Download

The aim of this work is to study the structure, surface morphology, chemical composition, absorption spectra and porosity of Ti1−xNixO2/SiO2 prepared via the sol-gel method. In addition, the MB degradation process is also discussed.

6p tamynhan9 02-12-2020 7 3   Download

This paper is an extension of our recent work that presents a two-scale design method of porosity-like materials using adaptive geometric components. The adaptive geometric components consist of two classes of geometric components: one describes the overall structure at the macrostructure and the other describes the structure of the material at the microstructures.

9p cothumenhmong8 04-11-2020 7 1   Download