Search results for " Integra"

Does Young's equation hold on the nanoscale? A Monte Carlo test for the binary Lennard-Jones fluid

2010

When a phase-separated binary ($A+B$) mixture is exposed to a wall, that preferentially attracts one of the components, interfaces between A-rich and B-rich domains in general meet the wall making a contact angle $\theta$. Young's equation describes this angle in terms of a balance between the $A-B$ interfacial tension $\gamma_{AB}$ and the surface tensions $\gamma_{wA}$, $\gamma_{wB}$ between, respectively, the $A$- and $B$-rich phases and the wall, $\gamma _{AB} \cos \theta =\gamma_{wA}-\gamma_{wB}$. By Monte Carlo simulations of bridges, formed by one of the components in a binary Lennard-Jones liquid, connecting the two walls of a nanoscopic slit pore, $\theta$ is estimated from the inc…

Bridging scales with thermodynamics: from nano to macro

2014

We have recently developed a method to calculate thermodynamic properties of macroscopic systems by extrapolating properties of systems of molecular dimensions. Appropriate scaling laws for small systems were derived using the method for small systems thermodynamics of Hill, considering surface and nook energies in small systems of varying sizes. Given certain conditions, Hill's method provides the same systematic basis for small systems as conventional thermodynamics does for large systems. We show how the method can be used to compute thermodynamic data for the macroscopic limit from knowledge of fluctuations in the small system. The rapid and precise method offers an alternative to curre…

Kirkwood–Buff Integrals Using Molecular Simulation: Estimation of Surface Effects

2020

Kirkwood&ndash

Symmetry of minimizers with a level surface parallel to the boundary

2015

We consider the functional $$I_\Omega(v) = \int_\Omega [f(|Dv|) - v] dx,$$ where $\Omega$ is a bounded domain and $f$ is a convex function. Under general assumptions on $f$, G. Crasta [Cr1] has shown that if $I_\Omega$ admits a minimizer in $W_0^{1,1}(\Omega)$ depending only on the distance from the boundary of $\Omega$, then $\Omega$ must be a ball. With some restrictions on $f$, we prove that spherical symmetry can be obtained only by assuming that the minimizer has one level surface parallel to the boundary (i.e. it has only a level surface in common with the distance). We then discuss how these results extend to more general settings, in particular to functionals that are not differenti…

Hollow system with fin. Transient Green function method combination for two hollow cylinders

2017

In this paper we develop mathematical model for three dimensional heat equation for the system with hollow wall and fin and construct its analytical solution for two hollow cylindrical sample. The method of solution is based on Green function method for one hollow cylinder. On the conjugation conditions between both hollow cylinders we construct solution for system wall with fin. As result we come to integral equation on the surface between both hollow cylinders. Solution is obtained in the form of second kind Fredholm integral equation. The generalizing of Green function method allows us to use Green function method for regular non-canonical domains.

Rilievo integrato presso il Borgo Schirò (PA)

2013

Il lavoro qui presentato consiste in un rilievo integrato (Topografico/GPS statico/NRTK/Laser Scanner) di un piccolo contesto extraurbano siciliano, Borgo Schirò, noto per le vicende storiche che portarono alla sua costruzione a seguito dell’emanazione della legge n.1 del 2 gennaio 1940, per il superamento del latifondo. Data la natura varia degli elementi da rilevare (edifici, arredo urbano, strade) sono state adottate tecniche di acquisizione diversificate per ognuno di essi, le quali, in forma integrata, hanno permesso un utile confronto finale degli elaborati prodotti, offrendo la possibilità di effettuare analisi qualitative altamente accurate su singoli casi strutturali ed elevati gra…

Design of the seismic retrofit of a school in accordance to a life cycle thinking approach

2018

Forest resources and sustainable tourism, a combination for the resilience of the landscape and development of mountain areas.

2020

The development of sustainable tourism models has been widely discussed in the economic literature. If on the one hand the demand for tourism has grown in recent years, on the other it is necessary to have adequate planning and political tools. The problems of sustainable tourism appear more complex when sustainable tourism involves development opportunities that require the support of the local community and the management of natural resources which are generally common goods. In these circumstances, new management structures need to be created, which can both meet the needs of the local community and ensure adequate management of natural resources. This study analyzes the connections betw…

INTEGRATED MARKETING COMMUNICATIONS IN SUSTAINABLE BUSINESS

2018

Business sustainability hinges on authorities’ action, cooperation and willingness to protect nature and natural resources, but they also have to meet the economic needs and cultivate the economic opportunities, whilst also satisfying the social needs and building a fair relationship among the different social groups. One of the ways to develop a sustainable business is integrated marketing communications. When using integrated marketing communications, businesses – notably food producers and retailers – need to focus on the education of consumers, the ecological performance and impact of products on the environment and human health, thus contributing to a sustainable development of Latvia’…

Local Knowledge and Resources as Driving Forces of Sustainable Bioeconomy

2018

A major driving force to promote the idea of sustainable bioeconomy could be local experiences, skills and knowledge in respect to the use of local and natural materials (at first, biomaterials). Sustainable bioeconomy is a concept under development, and as such it requires argumentation and demonstration of efficiency. The aim of this chapter is to study the local knowledge of the Baltic region in terms of the applicability of local biomaterials in production. In the context of bioeconomy, there is an evident need to identify the possibilities for the use of natural and local materials as well as the knowledge to manage these resources. Natural materials of the Baltic region, such as hemp,…