Homogeneous surface

Ebook "Biomedical nanotechnology: Methods and protocols" is to provide an overview of biomedical nanotechnology, from the conception of novel materials in the laboratory to the application of such structures in the clinic. After a brief introductory chapter, the first section consists of protocol chapters which provide practical information on the synthesis of a variety of solution-phase and surface-bound nanomaterials and their application in sensing, imaging, and/or therapeutics; most chapters provide step-by-step instructions and insight into overcoming possible pitfalls and challenges.

447p dongmelo 27-05-2024 3 2   Download

TiO2 has strong photocatalytic activity, which can oxidize and decompose impurities on surfaces and in the air. Therefore, TiO2 is used as an additive in the self-cleaning coating and paint industries. In this work, SiO2 is used in the TiO2/SiO2 mixture as the nucleus to homogenize the dispersion components. TiO2 and SiO2 nanoparticles are synthesized by the sol-gel method combined with ultrasound that suits the size range of 10-30 nm.

14p dianmotminh02 03-05-2024 2 1   Download

Ebook "Nanomaterials for liquid chromatography and laser desorption/ionization mass spectrometry" describes major advances in ultrathin-layer chromatography (UTLC), liquid chromatography and surface-assisted laser desorption ionization (SALDI), and matrix-enhanced SALDI (ME-SALDI) mass spectrometry. Lu describes the fabrication of electrospun polyvinyl alcohol (PVA) UTLC plates using an in-situ crosslinking electrospinning technique.

118p tudohanhtau1006 29-03-2024 7 1   Download

Ebook "Surface patterning with colloidal monolayers" introduces approaches for both challenges: It establishes a simple yet effective way to crystallize colloidal monolayers over large areas by employing the air/water interface in a process that can be repeated without any special equipment in laboratories around the world and introduces methodologies to prepare complex, functional structures from very simple starting materials.

248p coduathanh1122 27-03-2024 2 1   Download

Part 1 book "Thermodynamics - An advanced textbook for chemical engineers" includes content: First and second laws, state and equilibrium, homogeneous reaction, phases, mermodynamics of relaxation, surface thermodynamics, dissipative phenomena.

205p muasambanhan09 12-03-2024 1 0   Download

Part 1 book "Reactor design for chemical engineers" includes content: Introduction, reaction stoichiometry and thermodynamics, kinetics of homogeneous reactions and of reactions on solid catalyst surfaces, simple reactor sizing calculations.

264p muasambanhan09 04-03-2024 0 0   Download

Ebook "Nitrosyl complexes in inorganic chemistry, biochemistry and medicine I" spans the entire Periodic Table and addresses structure and bonding issues associated with all of the elements. It also focuses attention on new and developing areas of modern structural and theoretical chemistry such as nanostructures, molecular electronics, designed molecular solids, surfaces, metal clusters and supramolecular structures.

241p nhanphanguyet 28-01-2024 7 2   Download

The properties of Rayleigh-type surface wave in a linear, homogeneous and transversely isotropic nonlocal micropolar piezoelectric solid half-space are explored. Dispersion relations for Rayleigh-type surface wave are derived for both charge free and electrically shorted cases.

13p viwolverine 11-07-2023 5 2   Download

This work reports the surface modification of polyacrylonitrile (PAN) fibers by graft copolymerization to ensure the decoration of homogenous and dense Ag nanoparticles. Two facile and subsequent modification processes resulted in a PAN fiber composite with an intact fibrous structure, sufficiently conductive for antistatic application and antibacterial activity. In the first step, some chemically attractive monomers and monomer mixtures, such as acrylic acid (AA), AA-itaconic acid (AA-IA), AA-acrylamide (AA-AAm), were introduced to the fiber surface by grafting.

15p lyhuyenthu 31-01-2023 6 2   Download

High density polyethylene (HDPE) was compounded with thermally exfoliated graphene oxide (TEGO) by thermokinetic mixing in a short time. High shear rates during the compounding process provided high exfoliation and proper dispersion of graphene layers in the polymer matrix. Different TEGO/polymer ratios were used to get efficient melt mixing. Structural analysis by spectroscopic techniques confirmed the exfoliation of TEGO sheets and the coverage of their surfaces by HDPE chains.

10p langthannam 29-12-2021 4 0   Download

A novel adsorbent Fe3O4/Ni/NixB nanocomposite was synthesized and used for the adsorption of copper. Moreover, natural adsorbents carob and grape seeds were used for this purpose. The surfaces and the elemental compositions of the adsorbents were characterized by SEM-EDX. The zero point charges of pH of Fe3O4/Ni/NixB nanocomposite, carob, and grape seeds were found as 8.4, 6.0, and 5.6, respectively. The Langmuir, Freundlich, and Dubinin–Radushkevich isotherm models were used for the identification of the mechanism of the adsorption.

13p tudichquannguyet 29-11-2021 13 1   Download

In the present study copper oxide nanoparticles (CuO NPs) were synthesized using a hydrothermal method with ranolazine as a shape-directing agent. Ranolazine-functionalized CuO NPs were characterized by various analytical techniques such as scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD). The SEM pattern confirmed the morphology of ranolazine-functionalized CuO NPs with well-defined rice-like structures. FTIR spectroscopy confirmed the interaction between CuO NPs and ranolazine.

12p tudichquannguyet 29-11-2021 13 1   Download

Wool has disulphide bonds containing-hydrophobic external keratin layers, which act as a barrier for the modification through coating with hydrophilic materials. For that reason, in this work, to ensure a dense and homogenous conductive polymer coating onto the wool, the fabrics were subjected to the reduction process in the aqueous alkaline medium containing agents that can attack these disulphide bonds. Then, one of the polyaniline derivatives, poly(mtoluidine) (PMT), was coated onto wool by in situ polymerization of m-toluidine sulphate using ammonium persulfate (APS) as an oxidant.

16p tudichquannguyet 29-11-2021 9 1   Download

This study aimed to propose a mathematical method to investigate and optimize the simultaneous elimination process of multiple organic pollutants using the Fenton process. Hence, the treatment of rhodamine B (RB) and acid red 14 (AR14) dyes in their binary solution was studied. Multivariate curve resolution alternating least square (MCR-ALS), a novel chemometric method, was applied along with correlation constraints to resolute the UV-Vis spectrophotometric data, enabling quantification of investigated dyes despite a high spectral overlapping.

15p tudichquannguyet 29-11-2021 10 1   Download

The results showed that Pt particles, deposited by dc-magnetron gun, surround the large Co-clusters deposited by rf-magnetron gun. In addition, the increase of Co content led to an increase in the electrochemical active surface area (EASA) from 23.75 m2 /gPt to 47.54 m2 /gPt for pure Pt and Pt:Co (1:3), respectively, which corresponded the improvement of the utilization of Pt by a factor of 1.91.

17p tudichquannguyet 29-11-2021 9 1   Download

Lecture Mechanics of materials - Chapter Five: Torsion of Shafts. The main contents of the chapter consist of the following: Understand the theory, its limitations, and its applications in design and analysis of torsion of circular shafts; Visualize the direction of torsional shear stress and the surface on which it acts...

50p lijian 29-06-2021 10 1   Download

n this paper, we carry out the homogenization of a very rough threedimensional interface separating two dissimilar generally anisotropic poroelastic solids modeled by the Biot theory. The very rough interface is assumed to be a cylindrical surface that rapidly oscillates between two parallel planes, and the motion is time-harmonic. Using the homogenization method with the matrix formulation of the poroelasicity theory, the explicit homogenized equations have been derived.

14p nguaconbaynhay11 07-04-2021 20 1   Download

This paper presents a method to build up statically admissible slip-line field and, as a result, the field of statically admissible stresses of plane-strain compression of a three-layer symmetric strip consisting of two different rigid perfectly plastic materials between rough, parallel, rigid plates The case is considered when the shear yield stress of the inner layer is greater than that of the outer layer.

15p nguaconbaynhay10 19-02-2021 14 2   Download

This paper investigate the zero and finite temperature transport properties of a quasi-twodimensional electron gas in a GaAs/InGaAs/GaAs quantum well under a magnetic field, taking into account many-body effects via a local-field correction. We consider the surface roughness, roughness-induced piezoelectric, remote charged impurity and homogenous background charged impurity scattering. The effects of the quantum well width, carrier density, temperature and localfield correction on resistance ratio are investigated.

10p nguyenxuankha_bevandan 14-08-2020 12 1   Download

In this paper, a method for determining the limit load surface of fiber-reinforced nonlinear composites such as elasto-plastic composite is proposed. Using the stress approach of the homogeneous theory and the linear matching method (LMM).

12p tohitohi 19-05-2020 13 0   Download