Search results for "TLA"
showing 10 items of 1764 documents
In vitro evaluation of poloxamer in situ forming gels for bedaquiline fumarate salt and pharmacokinetics following intramuscular injection in rats
2019
Graphical abstract
Extended complex Kalman filter for sensorless control of an induction motor
2014
Abstract This paper deals with the design of an extended complex Kalman filter (ECKF) for estimating the state of an induction motor (IM) model, and for sensorless control of systems employing this type of motor as an actuator. A complex-valued model is adopted that simultaneously allows a simpler observability analysis of the system and a more effective state estimation. The observability analysis of this model is first performed by assuming that a third order ECKF has to be designed, by neglecting the mechanical equation of the IM model, which is a valid hypothesis when the motor is operated at constant rotor speed. It is shown that this analysis is more effective and easier than the one …
Controlling the cohesion of cement paste
2005
The main source of cohesion in cement paste is the nanoparticles of calcium silicate hydrate (C-S-H), which are formed upon the dissolution of the original tricalcium silicate (C(3)S). The interaction between highly charged C-S-H particles in the presence of divalent calcium counterions is strongly attractive because of ion-ion correlations and a negligible entropic repulsion. Traditional double-layer theory based on the Poisson-Boltzmann equation becomes qualitatively incorrect in these systems. Monte Carlo (MC) simulations in the framework of the primitive model of electrolyte solution is then an alternative, where ion-ion correlations are properly included. In addition to divalent calciu…
The Burdigalian GSSP: the missing tile to complete the Neogene interval of the Geological Time Scale
2014
Lingue e culture della montagna: le Madonie nell’esperienza dell’Atlante Linguistico della Sicilia (ALS)
2015
The cultural context of the Madonie — a hilly and mountainous territory near Palermo with about 60,000 inhabitants distributed in 22 little villages, some of which overlook the Tyrrhenian Sea — results from the influence of three external areas (those surrounding three of the most important towns in Sicily: Palermo, Caltanissetta, and Messina). The most relevant effect of such a complex multidirectional influence is the presence of three different micro-areas, each marked by different linguistic and cultural peculiarities. Since a situation of complex and “ordered” ethnolinguistic variability may be observed in the Madonie, the area and its micro-areas are currently investigated in a resear…
SINCONAPP: A Computerized learning tool for CBCT normal anatomy and variants of the nose and paranasal sinuses
2014
1. Purpose To supply an useful learning tool aimed to interactively display on mobile devices normal anatomy and variants of the nose and paranasal sinuses as seen on CBCT images. 2. Methods and Materials Images Images of the nose and paranasal sinuses were derived by a study series acquired by a CBCT device. CBCT studies of the paranasal sinuses were acquired in patients referred for nasal obstruction or sinusitis with the following parameters: 90 kVp, 12.5 mA, 20 s rotation time, FOV 13 x 14.5 cm, 0.25 x 0.25 x 0.25 mm voxel size. Software The application has been developed for iOS based mobile devices through the platform XCode provided by Apple®, and it is developed using the Objective-…
Integration Issues of Distributed Generators Considering Faults in Electrical Distribution Networks
2014
In the recent years there is a great interest in integration of distributed generation (DG) units at distribution level; this integration leads to planning as well as operational challenges. Some possibilities to handle grid planning issues are addressed in this paper. Effects on grid protection, fault current level, and voltage profile are investigated and described for different types of DG units; the classification of DG units is based on their terminal characteristics in terms of real and reactive power delivering capability. Different scenarios for mis-coordination problems caused by DG interconnection are discussed. The effect of the DG on the voltage profile of a distribution network…
Ekspansja militarna Rosji w regionie zagrożeniem dla grupy państw nadbałtyckich : Litwy, Łotwy i Estonii
2015
The authors of this article introduce the issue of the threat of the Baltic States from Russia. Consideration of the potential hazard of the Baltic States by the Russian Federation, manifested increasingly imperialistic aspirations, we want to identify the main causes that underlie such a policy of Russia. Membership in the Baltic states of NATO and the European Union gives hope for the unity of the members of NATO and the EU, these countries will be effectively defended against growing Russian militarism.
Innovations in the Art of Microneurosurgery for Reaching Deep-Seated Cerebral Lesions.
2019
Deep-seated cerebral lesions have fascinated and frustrated countless surgical innovators since the dawn of the microneurosurgical era. To determine the optimal approach, the microneurosurgeon must take into account the characteristics and location of the pathological lesion as well as the operator's range of technical expertise. Increasingly, microneurosurgeons must select between multiple operative corridors that can provide access to the surgical target. Innovative trajectories have emerged for many indications that provide more flexible operative angles and superior exposure but result in longer working distances and more technically demanding maneuvers. In this article, we highlight 4 …
Equilibrio fra poteri e libertà dai Trattati in diritto dell'Unione europea e diritto internazionale
2014
Riflessione sulla categoria civilistica dell'invalidità applicata ai Trattati internazionali e a quella peculiare species costituita dai Trattati istitutivi dell'Unione Europea. Si dà conto altresì delle modalità di modifica degli stessi e dell'estinzione.