Search results for "layer"
showing 10 items of 2667 documents
1988
Negatively charged lipid molecules were converted into polymerizable lipids by introduction of polymerizable mono- or bifunctional counterions. As an attempt to mimic the cytoskeleton of biomembranes, unsymmetrical polymeric vesicles were prepared, where the polyelectrolyte is attached either only to the inner or to the outer bilayer surfaces. Polymerizable cations were introduced to the outer surface of preformed small unilamellar vesicles via ion-exchange. The outer counterions of vesicles bearing polymerizable counterions at both sides of the membrane were replaced by Na+. Polymerization of these systems leads to unsymmetrical vesicles. The introduction, separation and polymerization of …
From Single Molecules to Nanoscopically Structured Materials: Self-Assembly of Metal Chalcogenide/Metal Oxide Nanostructures Based on the Degree of P…
2011
A chemically specific and facile method for the immobilization of metal oxide nanoparticles onto the surface of IF-MoS2 nested fullerenes is reported. The modification strategy is based on the chalcophilic affinity of transition metals such as Fe2+/Fe3+, Fe3+, or Zn2+ as described by the Pearson HSAB concept. The binding capabilities of the 3d metals are dictated by their Pearson hardness. Pearson hard cations such as Fe3+ (Fe2O3) do not bind to the chalcogenide surfaces; borderline metals such as Fe2+ (Fe3O4) or Zn2+ (ZnO) bind reversibly. Pearson-soft metals like Au bind irreversibly. The immobilization of metal oxide nanoparticle colloids was monitored by transmission electron microscopy…
Boundary value problem with integral condition for a Blasius type equation
2016
The steady motion in the boundary layer along a thin flat plate, which is immersed at zero incidence in a uniform stream with constant velocity, can be described in terms of the solution of the differential equation x'''= -xx'', which satisfies the boundary conditions x(0) = x'(0) = 0, x'(∞) = 1. The author investigates the generalized boundary value problem consisting of the nonlinear third-order differential equation x''' = -trx|x|q-1x'' subject to the integral boundary conditions x(0) = x'(0) = 0, x'(∞) = λ∫0ξx(s) ds, where 0 0 is a parameter. Results on the existence and uniqueness of solutions to boundary value problem are established. An illustrative example is provided.
Interaktīvās prozas lasītāju – spēlētāju kategoriju analīze
2016
Interaktīvā proza un tās lasītājs-spēlētājs ir samērā jauna tehnokultūras parādība, tāpēc līdz šim maz pētīta. Bakalaura darbā analizēta sešpadsmit lasītāju-spēlētāju identificēšanās ar interaktīvās prozas Viņa Majestātes kuģis “Straujais” autoru vai varoni ar mērķi noteikt sakarību starp lasītāju-spēlētāju identificēšanās tipu un viņu dzimumu, vecumu un interesēm saistībā ar datorspēlēm un literatūru. Lielākā daļa lasītāju-spēlētāju biežāk ir identificējušies ar interaktīvās prozas varoni, savukārt viena vecākās paaudzes lasītāja ar interesi par literatūru galvenokārt ir identificējusies ar interaktīvās prozas autoru.
Thermally-stable polymer-layered silicate nanocomposites through intercalation of novel organo-modifier
2014
La resistenza di interfaccia calcestruzzo poroso-terreni a grana fina per il consolidamento di pendii mediante trincee drenanti profonde
2022
Le trincee drenanti profonde rappresentano uno dei metodi più efficaci per la mitigazione del rischio da frana, in pendii con falda idrica. Esse sono realizzate mediante pannelli o pali secanti. Il riempimento è costituito di calcestruzzo poroso o materiale granulare. Se le trincee sono adeguatamente “innestate” nel terreno stabile e il materiale di riempimento ha sufficiente resistenza e rigidezza come il calcestruzzo poroso, si ha ulteriore in-cremento di resistenza a taglio per effetto shear keys, oltre a quello derivante dalla riduzione delle pressioni in-terstiziali. L’incremento di resistenza è dovuto sia alla resistenza all’interfaccia calcestruzzo–terreni sia a quella intrinseca del…
Intertekstualność w demotywatorach
2017
Demotivators as a new kind of hybrid texts, namely texts combining text with graphics very often refer and allude to the texts embedded in literature and culture. Intertextuality in such texts is realised on the lexical and graphical level. Frequently, winged words form a verbal layer of the demotivators, while a graphical layer refers to the works of art: paintings, films, book illustrations, etc. The authors of the demotivators refer to the literary works, pictures, namely to the works embedded in culture to comment the current events.
Remoção da smear layer dos canais radiculares em função das técnicas de instrumentação e irrigação endodônticas = Remoción del barrillo dentinario en…
2012
1 - Introducción El concepto de tratamiento endodóncico se basa en la instrumentación, limpieza, desinfección y obturación de los conductos radiculares. Con el fin de mejorar estos aspectos, algunos investigadores crearon nuevos planteamientos, técnicas e instrumentos, logrando un gran progreso para la Endodoncia. Ésta, como toda ciencia, tuvo una gran evolución en el siglo pasado y consiguió tener un elevado grado de desarrollo, no solo en sus bases biológicas sino también en el desarrollo de las técnicas, instrumentos, soluciones y materiales. Actualmente la limpieza y desinfección del conducto radicular se logra con la ayuda de instrumentos y soluciones irrigadoras. La intención de obten…
Analisi dei fattori di prevenzione del "jumper's knee" nella pallavolo
2005
Atomic Layer Deposition of Intermetallic Fe4Zn9 Thin Films from Diethyl Zinc
2022
| openaire: EC/H2020/765378/EU//HYCOAT We present a new type of atomic layer deposition (ALD) process for intermetallic thin films, where diethyl zinc (DEZ) serves as a coreactant. In our proof-of-concept study, FeCl3 is used as the second precursor. The FeCl3 + DEZ process yields in situ crystalline Fe4Zn9 thin films, where the elemental purity and Fe/Zn ratio are confirmed by time-of-flight elastic recoil detection analysis (TOF-ERDA), Rutherford backscattering spectrometry (RBS), atomic absorption spectroscopy (AAS), and energy-dispersive X-ray spectroscopy (EDX) analyses. The film thickness is precisely controlled by the number of precursor supply cycles, as expected for an ALD process.…