Search results for "Moduli"
showing 10 items of 206 documents
Benchmark study of undrained triaxial testing of Opalinus Clay shale: Results and implications for robust testing
2021
Triaxial testing of argillaceous rocks and shales is significantly more challenging than conventional rock mechanical testing. The challenges are mainly related to the very low permeability of these geomaterials, and their sensitivity to exposure of atmosphere and brines, which induces variations of water content, suction and effective stress. There are currently no international standards to guide service laboratories for robust testing procedures for shales. A benchmark study of undrained triaxial testing was therefore initiated with three leading service laboratories in shale testing, performing 13 tests and using two different methods of establishing sample saturation prior to deformati…
La disciplina sulle energie rinnovabili nella dinamica delle fonti del diritto. La legislazione regionale nella morsa della sussidiarietà?
2010
Lo scritto approfondisce le molteplici e complesse problematiche sottese alla disciplina in materia di produzione di energia da fonti rinnovabili. Si tratta, infatti, di una materia che addensa una serie di criticità, per le sue connessioni, sul piano sostanziale, con altri settori competenziali (es. tutela dell'ambiente, del paesaggio, della concorrenza, sviluppo economico). Queste connessioni hanno ulteriormente complicato la definizione di un ruolo esatto delle Regioni nell'esercizio della potestà legislativa concorrente in materia di energia, di fatto bloccando l'articolazione dell'intervento statale e regionale prefigurata dall'art. 117, comma 3. La giurisprudenza costituzionale, posta…
A formula for the Euler characteristic of $\overline{{\cal M}}_{2,n}$
2001
In this paper we compute the generating function for the Euler characteristic of the Deligne-Mumford compactification of the moduli space of smooth n-pointed genus 2 curves. The proof relies on quite elementary methods, such as the enumeration of the graphs involved in a suitable stratification of \(\overline{{\cal M}}_{2,n}\).
Euler Characteristics of Moduli Spaces of Curves
2005
Let ${mathcal M}_g^n$ be the moduli space of n-pointed Riemann surfaces of genus g. Denote by ${\bar {\mathcal M}}_g^n$ the Deligne-Mumford compactification of ${mathcal M}_g^n$. In the present paper, we calculate the orbifold and the ordinary Euler characteristic of ${\bar {\mathcal M}}_g^n$ for any g and n such that n>2-2g.
Ottimizzazione della produzione di energia elettrica da impianti fotovoltaici
2014
Algu aprēķina moduļa uzlabojumi personālvadības sistēmā
2018
Kvalifikācijas darba “Algu aprēķina moduļa uzlabojumi personālvadības sistēmā” ietvaros tika veikti uzlabojumi uzņēmuma personālvadības sistēmas algu aprēķina modulī. Uzlabojumi sevī ietver gan kļūdu labojumus, gan jaunas funkcionalitātes ieviešanu, lai uzlabotu lietotāju pieredzi, lietojot sistēmu, un atvieglotu izstrādes procesu izstrādātājiem. Risinājuma izstrādē tika lietoti šādi rīki: JavaScript, TypeScrypt, HTML, CSS, Polymer Web Components, C#, KnockoutJS, “JetBrains Rider”, “MS Visual Studio Code”, GIT, TeamCity, Bitbucket.
Nanovadu mehānisko īpašību izpēte un to pielietojumi nanoelektromehāniskās sistēmās
2015
Darbā noteikti monokristālisku Sb2S3, Ge un BeO nanovadu Junga moduļi. Nanovadu šķērsgriezuma laukums noteikts robežās no 7.1⋅102 nm2 līdz 7.8⋅104 nm2, garums no 3,1 µm līdz 136 µm. Mērījumi veikti skenējošā elektronu mikroskopā. Izmantotas atšķirīgas mehānisko īpašību noteikšanas metodes – elektriskā lauka ierosināta mehāniskā rezonanse, nanovadu lieces un spiedes deformācijas – un secināts, ka iegūtie rezultāti kļūdu robežās sakrīt. Eksperimentāli noteiktās Junga moduļa vērtības – 36 ± 9 GPa, 135 ± 40 GPa un 97 ± 24 GPa attiecīgi Sb2S3, Ge un BeO nanovadiem. Pētīts ar dabīgo oksīdu klātu Ge nanovadu pielietojums nanoelektromehāniskā slēdzī. Parādīts, kā adhēzija starp aktīvo elementu un e…
Kvalitātes nodrošināšanas moduļa izveide uzņēmumā “Meditec”
2018
Autore, strādājot uzņēmumā “Meditec”, bija saskārusies ar nepieciešamību izveidot kvalitātes nodrošināšanas moduli, ar kura palīdzību lietotāji ar attiecīgajām tiesībām spētu definēt un pārizmantot validācijas kritērijus ievadlaukiem. Bakalaura darba mērķis bija izpētīt informāciju avotus par vairākām validācijas metodēm un to realizācijām, izpētīt izmantotās tehnoloģijas un realizētās validācijas metodes uzņēmuma “Meditec” veidotajā satvarā, kā arī iegūto informāciju pielietot, lai izveidotu kvalitātes nodrošināšanas moduļa ideju uzņēmumam. Galvenie uzdevumi ir izpētīt literatūras avotos iegūstamo informāciju par validācijas metožu realizācijām, izpētīt uzņēmuma satvarā realizētās validāci…
Analysis of Rabbit Vascular Responses to DBI, an Ingol Derivative Isolated from Euphorbia canariensis
1997
Abstract We have analysed the effects of 7,12-O-diacetyl-8-O-benzoil-2,3-diepiingol (DBI), an ingol derivative isolated from E. canariensis, on isometric tension developed by isolated rabbit basilar and carotid arteries. Concentration-response curves to DBI (10−8 - 3 × 10−5 m) were obtained cumulatively in both arteries at resting tension and active tone (KC1, 50 mm). At resting tension, DBI induced a concentration-dependent contraction, which was not inhibited in Ca2+-free medium. H7 (1-(5-isoquinoline sulphonyl)-2-methylpiperazine dichloride) (10−4 m) inhibited the DBI-induced contraction both in basilar and in carotid arteries. Calmidazolium (10−4 m) inhibited the maximum contraction of …
Angiotensin-Converting Enzyme Inhibitor Ramiprilat Interferes With the Sequestration of the B 2 Kinin Receptor Within the Plasma Membrane of Native E…
1999
Background —ACE (kininase II) inhibitors have been shown to exert their beneficial cardiovascular effects via the inhibition of both angiotensin II formation and bradykinin breakdown. Because recent evidence suggests that ACE inhibitors may also interfere with B 2 kinin receptor signaling and thus enhance the vascular response to bradykinin, we examined whether the distribution of B 2 kinin receptors within the plasma membrane of native endothelial cells is affected by an ACE inhibitor. Methods and Results —Localization of the B 2 kinin receptor in membranes prepared from native porcine aortic endothelial cells was evaluated by means of specific [ 3 H]bradykinin binding and immunoprecipita…