Generalized Young Equation of Cylindrical Droplets Between Two Parallel Cylinders

2016 ◽  
Vol 13 (10) ◽  
pp. 6944-6946
Author(s):  
Long Zhou ◽  
Guang-Hua Sun ◽  
Xiao-Song Wang ◽  
Ai-Jun Hu
Keyword(s):  
Line Tension ◽  
Industrial Applications ◽  
Critical Importance ◽  
Daily Lives ◽  
Dividing Surface ◽  
Young Equation ◽  
Dividing Line

Wetting phenomenon of a solid by a liquid is of critical importance for our daily lives and many industrial applications. In this study, we thermodynamically derive a generalized Young equation of cylindrical droplets between two homogeneous and smooth parallel cylinders including the influences of the line tension. The derivation is based on the concepts of Gibbs’s dividing surface and Rusanov’s dividing line in practice.

Generalized Young Equation for Cylindrical Droplets within a Homogeneous and Smooth Regular Triangular Prism Filled with Gas in Three Convex Corners

2016 ◽  
Vol 6 (1) ◽  
pp. 14
Author(s):  
Long Zhou ◽  
Guang-Hua Sun ◽  
Ai-Jun Hu ◽  
Xiao-Song Wang
Keyword(s):  
Line Tension ◽  
Phase System ◽  
Triangular Prism ◽  
Gas Phases ◽  
Three Phase ◽  
Dividing Surface ◽  
Solid Liquid ◽  
Wetting Behaviors ◽  
Young Equation ◽  
Dividing Line

<p class="1Body">Based on the approaches of Gibbs’s dividing surface and Rusanov’s dividing line, the wetting behaviors of cylindrical droplets that at equilibrium are sitting inside a homogeneous and smooth regular triangular prism filled with gas in three convex corners are studied. For the three-phase system, which is composed of solid, liquid and gas phases, a generalized Young equation for cylindrical drops in a homogeneous and smooth regular triangular prism imbued with gas within three apex corners has been successfully derived including the effects of the line tension.</p>

scholarly journals Contact Angle for Spherical Nanodroplet in Cylindrical Cavity with Quadratic Curve Generatrix

2016 ◽  
Vol 6 (1) ◽  
pp. 96
Author(s):  
Ai-Jun Hu ◽  
Bao-Zhan Lv
Keyword(s):  
Contact Angle ◽  
Line Tension ◽  
Equilibrium Contact Angle ◽  
Cylinder Surface ◽  
Quadratic Curve ◽  
Dividing Surface ◽  
Solid Liquid ◽  
Young Equation ◽  
Homogeneous Cylinder ◽  
Young's Equation

<p class="1Body">Wetting of a spherical nanodroplet in smooth and homogeneous cylinder surface rotated by quadratic curve was studied by methods of thermodynamics. The solid-liquid-vapor system was separated into six parts using Gibbs method of dividing surface. The system free energy was calculated. A generalized Young equation for the equilibrium contact angle is proposed taking the line tension effects into consideration. On the basis of some assumptions, this generalized Young equation is the same as the classical Young’s equation.</p>

scholarly journals Bissu and Toboto Domain; Lanskap, Islam, dan Negosiasi

2019 ◽  
Vol 4 (1) ◽  
pp. 73
Author(s):  
Feby Triadi
Keyword(s):  
Daily Life ◽  
Religious Leaders ◽  
Ethnographic Methods ◽  
Daily Lives ◽  
Analytical Technique ◽  
Exchange Relations ◽  
Dividing Line

This research found a dividing line between the narrative of Bissu and Toboto, in some previous research, they were always singularly narrated. But this Research looks at other phenomena of Bissu, namely Toboto, present and playing a role in their daily lives. That way, this article wants to reveal another narrative that has been supporting the Bissu as a single narrative. It also focused on landscapes, Islam and negotiations, using ethnographic methods, taking the context of research in Pangkep Regency and confirming the data, with Bissu and adat councils in Bone District, making this research conducted from November to December. The analytical technique used is structural-functional, which sees exchange relations between people who have their respective structures and functions. This research found several updates. First, the context in seeing Bissu daily life is always centered on Segeri Subdistrict, but what is in the field, it turns out Bissu residence is not only in Segeri District. Secondly, as far as any behavior deviates from the behavior of Bissu and Toboto, Islam as a religion teaching always returns them to their nature. And thirdly, negotiations between the two camps (adat council and religious leaders) are like a time bomb that is ready to explode at any time.

scholarly journals Sulfide and Oxide Inorganic Solid Electrolytes for All-Solid-State Li Batteries: A Review

Nanomaterials ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1606 ◽  
Author(s):  
Mogalahalli V. Reddy ◽  
Christian M. Julien ◽  
Alain Mauger ◽  
Karim Zaghib
Keyword(s):  
Solid State ◽  
Solid Electrolytes ◽  
Large Scale ◽  
Industrial Applications ◽  
Energy Storage Materials ◽  
Experimental Conditions ◽  
Daily Lives ◽  
Future Challenges ◽  
Solid State Batteries ◽  
Li Batteries

Energy storage materials are finding increasing applications in our daily lives, for devices such as mobile phones and electric vehicles. Current commercial batteries use flammable liquid electrolytes, which are unsafe, toxic, and environmentally unfriendly with low chemical stability. Recently, solid electrolytes have been extensively studied as alternative electrolytes to address these shortcomings. Herein, we report the early history, synthesis and characterization, mechanical properties, and Li+ ion transport mechanisms of inorganic sulfide and oxide electrolytes. Furthermore, we highlight the importance of the fabrication technology and experimental conditions, such as the effects of pressure and operating parameters, on the electrochemical performance of all-solid-state Li batteries. In particular, we emphasize promising electrolyte systems based on sulfides and argyrodites, such as LiPS5Cl and β-Li3PS4, oxide electrolytes, bare and doped Li7La3Zr2O12 garnet, NASICON-type structures, and perovskite electrolyte materials. Moreover, we discuss the present and future challenges that all-solid-state batteries face for large-scale industrial applications.

scholarly journals Nonlinear Relationship between the Radii of Droplets and the Contact Angle of Wetting

2015 ◽  
Vol 5 (2) ◽  
pp. 1
Author(s):  
Xiao-Song Wang ◽  
Xiao-Bin Fan ◽  
Aijun Hu
Keyword(s):  
Surface Tension ◽  
Contact Angle ◽  
Lithium Ion ◽  
Line Tension ◽  
Industrial Applications ◽  
Nonlinear Relationship ◽  
Curvature Effects ◽  
Nano Scale ◽  
Wetting Phenomena ◽  
Spherical Droplets

<p class="1Body">Wetting abilities are important in many industrial applications, for instance, the wetting abilities of electrolytes on electrodes plays a key role in improving the specific energy density of supercapacitors and lithium-ion batteries. For nano-scale wetting phenomena, we should consider the curvature effects of the surface tension and the line tension. However, previous works have not analyzed the influence of the curvature effects of the surface tension. In this manuscript, the nano-scale wetting phenomena of spherical droplets on smooth non-deformable substrates were studied by methods of thermodynamics. The total Helmholtz free energy total and the grand potential of this system are calculated. A generalized Young’s equation for wetting of spherical droplets with large enough radius is derived. It is shown that there exists a nonlinear relationship between the contact angle and the radii of droplets or the line tension.</p>

The contact angle for a droplet on homogeneous and spherical concave surfaces

2016 ◽  
Vol 30 (07) ◽  
pp. 1650078
Author(s):  
Ai-Jun Hu ◽  
Bao-Zhan Lv ◽  
Xiao-Song Wang ◽  
Long Zhou
Keyword(s):  
Contact Angle ◽  
Chemical Potential ◽  
Rough Surfaces ◽  
Line Tension ◽  
Equilibrium Contact Angle ◽  
Precursor Film ◽  
Phase System ◽  
Spherical Droplet ◽  
Dividing Surface ◽  
Young's Equation

Wetting of droplets on homogeneous and spherical concave rough surfaces is investigated based on thermodynamics. In this study, neglecting the droplet gravity and the thickness of the precursor film of the liquid–vapor interface, the three-phase system is divided into six parts using Gibbs concept of dividing surface. The system Helmholtz free energy is established based on thermodynamics. Supposing the temperature and chemical potential to be constant, a new generalized Young’s equation of the equilibrium contact angle for a spherical droplet on a spherical concave rough surfaces is obtained including the line tension effects. Under certain conditions, this generalized Young’s equation is the same as the Rusanov’s equation.

scholarly journals Photo-Controlled Adhesives Based on Photoinduced Solid-to-Liquid Transition of an Azobenzene Compound

2020 ◽  
Vol 02 (04) ◽  
pp. 362-366
Author(s):  
Bing Niu ◽  
Mingsen Chen ◽  
Xiaolei Zhao ◽  
Yuanli Liu ◽  
Si Wu
Keyword(s):  
Uv Irradiation ◽  
Industrial Applications ◽  
Daily Lives ◽  
Liquid Transition ◽  
Adhesive Surface ◽  
Strong Adhesion ◽  
Engineering Physics

The development of photo-controlled adhesives can overcome the problems associated with daily lives and industrial applications. Adhesion is a multidiscipline field of engineering, physics, and chemistry. The solid-to-liquid transformation of light-controlled adhesives can be used for direct bonding onto diverse surfaces. Here, a photoresponsive azobenzene compound is developed for photo-controlled adhesion. The azobenzene compound 4, 4'-hexyl diacrylate-3-methylazobenzene (M1) exhibits photoinduced solid-to-liquid transition due to trans–cis photoisomerization. The prepolymer coating based on the azobenzene compound M1 is prepared on an adhesive surface. After UV irradiation, the solid coating was quickly transformed into liquid for adhesion. This photo-controlled adhesive has strong adhesion to different surfaces.

scholarly journals Detection and Classification of Ring Failures by Artificial Neural Networks in Bearings

2018 ◽  
pp. 31-35
Author(s):  
Yunus Emre Karabacak ◽  
Hamdi Tolga Kahraman ◽  
Levent Gumusel ◽  
Cemal Yilmaz
Keyword(s):  
Diagnostic Technique ◽  
Industrial Applications ◽  
Production Costs ◽  
Critical Importance ◽  
Outer Race ◽  
Bearing Failures ◽  
Bearing Vibration ◽  
Type Of Failure

An effective way to improve the efficiency and extend the life of the machines is to determine the failures of the bearings during operation. Early detection of bearing failures also has critical importance in terms of production costs. Various maintenance methods are used to prevent the failures. Despite all the precautions, unexpected failures can occur and production operations can be failed. This situation, apart from conventional methods, requires a novel determination and diagnostic technique. In this study, artificial intelligence based methods are applied and models are developed in order to detect bearing failures early and to classify the type of failure. In the developed models, it is possible to detect the ring failures depending on different loads and bearing vibration information. In addition, a classification is carried out for the fault from the inner or outer race of the bearing. Determination of the fault, as well as the diagnosis of the class, will increase stability and productivity, especially in critical industrial applications.

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