Useful properties
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In recent years, the prediction of the effective transport properties have received a great number of investigations. The present work is dedicated to determining the effective permeability of two-dimensional (2D) doubly porous materials made of an isotropic permeable solid matrix in which elliptical shaped pores of any size are embedded. At the interface between the fluid and the solid, the Beaver–Joseph–Saffman conditions are applied.
10p vithomson 02-07-2024 0 0 Download
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Ebook "Wood in the landscape: A practical guide to specification and design" provides full, detailed coverage of all relevant technical aspects of working with wood-including the physical properties and characteristics of wood as well as finishes, fasteners, and adhesives. It examines the construction methodologies used to build a range of common structures, from fences and decking to gazebos and bridges, and shows how to avoid common problems that can adversely affect durability - particularly important when it comes to outdoor settings.
214p tuongmothua 11-07-2024 3 2 Download
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Part 1 of ebook "Economic and financial modelling with EViews: A guide for students and professionals" provides readers with contents including: Chapter 1 - Introduction to EViews; Chapter 2 - A guideline for running regression; Chapter 3 - Time series analysis; Chapter 4 - Time series modelling; Chapter 5 - Further properties of time series; Chapter 6 - Economic forecasting using regression; Chapter 7 - Economic forecasting using ARIMA modelling;...
154p daonhiennhien 03-07-2024 1 1 Download
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Part 1 of ebook "Structural concrete: Materials; mix design; plain, reinforced and prestressed concrete; design tables" provides readers with contents including: the design and analysis of reinforced and prestressed concrete structural components (or members or elements) and structures; the basic theories required; the properties and behaviour of plain concrete, and of the steel used for reinforcing and prestressing concrete;...
154p mothoiphong 28-06-2024 3 1 Download
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Part 2 of ebook "Structural concrete: Materials; mix design; plain, reinforced and prestressed concrete; design tables" provides readers with contents including: cement manufacture; properties of cement and fine and coarse aggregates; the design of concrete mixes and properties of fresh (or wet) concrete; numerous design tables and graphs, both for general use and for aiding design with British Standard CP 110. (These are listed in Appendix 1 to assist location.);...
107p mothoiphong 28-06-2024 1 1 Download
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Circulating tumor cell (CTC) clusters play a critical role in carcinoma metastasis. However, the rarity of CTC clusters and the limitations of capture techniques have retarded the research progress. In vitro CTC clusters model can help to further understand the biological properties of CTC clusters and their clinical significance.
17p vishanshan 27-06-2024 1 1 Download
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Part 1 of ebook "Timber: Structure, properties, conversion and use" provides readers with contents including: nomenclature of timbers; structure of wood; gross structure; cellular structure; molecular structure; variability in structure; identification of timbers; properties of wood - influence of structure; density of wood; moisture in wood; strength, elasticity and toughness of wood;...
137p mothoiphong 28-06-2024 2 1 Download
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Part 2 of ebook "Timber: Structure, properties, conversion and use" provides readers with contents including: processing of timber - how to cut it up, dry and grade it; log conversion; seasoning of wood; machining of wood and board materials; timber grading and grade stresses; utilisation of timber - how, why and where is it used;...
173p mothoiphong 28-06-2024 2 1 Download
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Ebook "Dictionary of property and construction law" is a new dictionary which provides a clear and concise explanation of terms used in land, property and construction law and management. The four key areas of coverage are: planning/construction law, land law, equity/trusts and finance and administration. It will be a useful reference for property and building professionals and a personal purchase for students of property and construction law on building, construction management, estate management and law courses.
208p mothoiphong 28-06-2024 3 1 Download
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Breast cancer is a prevalent cancer characterized by its aggressive nature and potential to cause mortality among women. The rising mortality rates and women’s inadequate perception of the disease’s severity in developing countries highlight the importance of screening using conventional methods and reliable scales.
17p vikoch 27-06-2024 1 1 Download
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This paper studies the formal local cohomology with respect to non-maximal ideals. It is an extension of the formal local cohomology for maximal ideals by Schenzel (2007). By using the properties of inverse limits and I-adic topology, we have proved several crucial properties of the formal local cohomology of order 0 regarding non-maximal ideals.
8p visergeyne 18-06-2024 0 0 Download
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N-Guanylurea dinitramide (GUDN), also known as FOX-12, is indeed a fascinating organic dinitramide salt with high insensitivity and good thermal stability. It shows great promise for use in next-generation insensitive munitions. In this study, GUDN was synthesized through the nitration reaction of ammonium sulfamate salt with an acid mixture (HNO3/H2SO4) and guanylurea salts in water.
9p visergeyne 18-06-2024 0 0 Download
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Orthodontic archwire materials are changing rapidly in our time. Because an ideal archwire material has not yet been found, assessment of the most effectual properties of different archwires including working range and its effect on root resorption is still an unmet clinical need. Unfortunately, most clinical studies lack standardization of subjects and force.
7p visergeyne 18-06-2024 1 0 Download
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The present study investigates the synthesis and analysis of zinc oxide nanoparticles (ZnO NPs) intended for use in electronic devices. ZnO NPs with an average crystallite size of 33 nm and a hexagonal wurtzite structure were produced by the combustion process. Scanning Electron Microscopy (SEM) revealed a densely packed, spherical morphology.
12p visergeyne 18-06-2024 0 0 Download
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The green synthesized Ag/rGO composite nanoparticles were successfully synthesized using the Hummers’ method with Amaranthus viridis extract. The localized surface plasmon resonance (LSPR) behavior of the Ag/rGO was studied using the Kretschmann configuration consisting of prism/Au/Ag/rGO/air.
16p visergeyne 18-06-2024 0 0 Download
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The aim of the present study is to investigate and compare single thin films with multilayer films consisting of three oxides of zinc, silver, and copper to study the effect of doping on the structural, optical properties, photodetector performances and photocatalysis and the corresponding change of properties depending on the type and percentage of doping
15p visergeyne 18-06-2024 1 0 Download
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State-of-the art research on conventional microwave substrates reveals limitations of restricted flexibility, poor adaptability to irregular surfaces, and reduced effectiveness in complex sensing environments, leading to the development of a flexible microwave substrate using Co–Ca ferrite for feasible applications in detecting industrial chemicals.
15p visergeyne 18-06-2024 0 0 Download
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In this paper, polyvinyl butyral (PVB) composite coating was prepared with graphene oxide (GO) to improve mechanical properties, corrosion protection, and thermal oxidation stability. Fourier-transform infrared spectroscopy (FT-IR), Thermogravimetric analysis (TGA), Field Emission Scanning Electron Microscopy (FESEM),... were used to examine the results.
9p viambani 18-06-2024 2 0 Download
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Recently, the demand for novel food-packaging materials with antimicrobial properties has been increasing drastically. In this report, we attempt to implant zinc ions on the surface of commercial paper sheets by using a hydrothermal method to create hydrozincite nanoflake structures.
9p viambani 18-06-2024 1 0 Download
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In this study, the effect of nanoclay content on the fire resistance performances of intumescent coatings using ammonium polyphosphate (APP), pentaerythritol (PER), and melamine (MEL) is investigated. The epoxy and nanoclay-based intumescent coatings were developed to serve as coatings for steel substrates.
8p viambani 18-06-2024 2 1 Download