Surface tension

Ebook "Stimuli-responsive dewetting/wetting smart surfaces and interfaces" will focus on recent topics related to various stimuli-responsive wetting/dewetting surfaces, and give an overview of the knowledge and concepts of how to design and establish these smart artificial surfaces, which can be used for technical developments in a wide variety research fields.

467p tracanhphuonghoa1007 22-04-2024 4 3   Download

Part 1 of ebook "Surface treatment of materials for adhesive bonding (Second edition)" includes the following main contents: Chapter 1 - Introduction to surface preparation; Chapter 2 - Surface tension and its measurement; Chapter 3 - Surface energy of solids and its measurement; Chapter 4 - Surface and material characterization techniques; Chapter 5 - Theories of adhesion; Chapter 6 - Material surface preparation techniques; Chapter 7 - Surface preparation of metals;...

185p khuynhlinhnguyet1009 05-04-2024 4 1   Download

Part 2 book "Physical and chemical equilibrium for chemical engineers" includes content: Correlating and predicting nonideal VLE; vapor–liquid equilibrium (VLE) at high pressures; liquid–liquid, liquid–solid and gas–solid equilibrium; chemical equilibrium; equilibrium in complex chemical reactions; equilibrium with gravity or centrifugal force, osmotic equilibrium, equilibrium with surface tension; the phase rule, equilibrium in biochemical reactions.

204p muasambanhan09 12-03-2024 4 0   Download

Ebook "Food physics: Physical properties – measurement and applications" deals with the physical properties of food, food ingredients and their measurement. Physical properties of food play a key role in all fields where modern technological processes are applied for the generation of food raw materials and the production of food. The determination of physical properties of food and related products are a pre-requisite for planning, production engineering and automation processes in today’s food, pharmaceutical and cosmetics industries as well as in all related quality control activities.

554p manmanthanhla0201 27-02-2024 7 2   Download

This specification covers the procedures and acceptance standards for the determination of reduction of area using a tension test specimen whose axis is perpendicular to the rolled surfaces of steel plates 1 in and greater in thickness. The principal purpose of the testing is to provide a measure of the resistance of a steel plate to lamellar tearing.

5p hth_hn_vn 10-12-2023 4 4   Download

Highly conductive PEDOT:PSS is one of the most promising materials for indium tin oxide (ITO) substitution in printed electronics. Here, we report the development and optimisation of two PEDOT:PSS ink formulations for the fabrication of inkjet-printed transparent conductive layers.

10p viberbers 09-08-2023 4 3   Download

We use variational method to examine buckling of chiral elastic rings spanned by fluid films. We find that the critical surface tension of the fluid film at which buckling occurs depends on the degree of chirality, regardless whether the ring possesses lefthanded chirality or right-handed chirality.

10p viwolverine 11-07-2023 5 2   Download

Dynamic light scattering (DLS), viscosity and surface tension (SFT) measurements were used to characterize influence of salts containing ions of Hofmeister series (Na2SO4, (NH4)2SO4, NaSCN, NH4SCN and NaCl) on the behaviour of hyaluronan in diluted solutions at a temperature range of 15–45 °C.

8p vihermione 06-01-2023 12 2   Download

In this work, the miscibility of blends of thermoplastic Achira Starch (AS) and polylactic acid (PLA) was evaluated, assisted by Pluronic® F127 an amphiphilic triblock copolymer that acts as a surfactant and promotes the reduction of surface tension among AS and PLA in solution by emulsion stabilization.

14p viginny 30-12-2022 4 2   Download

Deploying two salts in hydrophobic interaction chromatography can significantly increase dynamic binding capacities. Nevertheless, the mechanistic understanding of this phenomenon is lacking. Here, we investigate whether surface tension or ionic strength govern dynamic binding capacities of the chromatographic resin Toyopearl Butyl-650 M in dual salt systems.

12p viginny 23-12-2022 6 3   Download

Lecture Colloid chemistry - Chapter 2: Surface phenomena (Dr. Ngo Thanh An). The main topics covered in this chapter include: surface tension, surface and interfacial tension, surface free energy, work of cohension and adhesion, curved interfaces and capillarity, Thompson Kelvin equation,...

51p andromedashun 18-05-2022 7 1   Download

It is found that a small subset of the investigated texture features is highly significant for all experiments. Using this feature subset in conjunction with multi-layer, nonlinear and low complexity feed-forward network architectures classification accuracies in the order of 99% are obtained.

14p guernsey 28-12-2021 3 0   Download

Lecture Physical chemistry - States of Matter: Liquids and Solids provide students with knowledge about comparison of gases, liquids, and solids; phase transitions; phase diagrams; properties of liquids: surface tension and viscosity; intermolecular forces; explaining liquid properties;...

102p bachnhuocdong 23-12-2021 17 0   Download

This study presents the synthesis of glucose-based surfactants including quaternary ammonium salts. Their surface properties and influence on the soil environment were investigated. The synthesized quaternary ammonium chlorides of glucose-based ester exhibited good surface tension reduction properties and formed stable foam in contact with water. The results showed that quaternary ester ammonium salts affect the activation of metals (nickel and cadmium) from the soil matrix after their introduction into the soil environment. This phenomenon can increase the bioavailability of these metals.

15p tudichquannguyet 29-11-2021 4 1   Download

Researchers have studied and evaluated the effects of electrical current frequency (f = 0÷2.000 Hz) on the physicochemical properties (surface tension, dynamic viscosity, specific weight) of wastewater. The effect of electric fields on the physicochemical properties of water, allows it to identify the optimal treatment regimes that promote the intensification of various processes taking place in an aqueous medium or in the presence of water.

7p nguaconbaynhay12 13-06-2021 21 1   Download

This study, the rice straw was pretreated with sodium hydroxide as the step of rice straw pretreatment in bioethanol production, and then lignin was recovered by acidification method. The obtained lignin was characterized by Fourier-transform infrared (FT-IR) and X-ray powder diffraction (XRD) to confirm the chemical structure, inorganic matter. To produce sodium lignosulfonate (NaLS), the sulfomethylation was conducted between lignin, formalin, and sodium sulfite.

10p nguaconbaynhay11 01-04-2021 33 1   Download

In this work our objective is to understand the failure behaviour of unreinforced masonry under in-plane cyclic loading. For this purpose we proposed a plasticity based interface model consists of a single yield surface criteria which is a direct extension of Mohr–Coulomb criteria with a tension cut and compression cap and a back stress vector is introduced as a mixed hardening law variable in the adopted yield surface to capture the unloading/reloading behaviour of masonry under cyclic loading.

16p trinhthamhodang9 10-12-2020 14 0   Download

In this study, the numerical computation is used to investigate the transient thermocapillary migration of a water droplet in a micro-channel under the effect of heating source. For tracking the evolution of the free interface between two immiscible fluids, we employed the finite element method with the two-phase level set technique to solve the Navier-Stokes equations and continuity equation coupled with the energy equation. Both the upper wall and the bottom wall of the microchannel are set to be an ambient temperature.

8p trinhthamhodang9 04-12-2020 15 3   Download

The forces on a dilute single Bose-Einstein condensate confined between two parallel palates consist of two kinds, namely surface tension force and Casimir force. Within framework of double parabola approximation the surface tension force is investigated. The Casimir force is studied by quantum field theory in one-loop approximation. The total force is also obtained.

8p tamynhan9 02-12-2020 12 1   Download

The objective was to determine the optimal conditions for achieving the highest grade, recovery and efficiency while describing in clear terms the effect of the input variables on the studied responses. A three-level Box-Behnken factorial design was combined with response surface methodology (RSM) to model and optimise the process.

12p cleopatrahuynh 01-06-2020 12 1   Download