Search results for " Integra"
showing 10 items of 2527 documents
Magnetic Tunnel Junction (MTJ) Sensors for Integrated Circuits (IC) Electric Current Measurement
2013
We report on MgO Magnetic Tunnel Junction (MTJ) devices focusing on their potential application in the measurement of electrical current at the integrated circuit level. Single devices and full bridges have been specifically developed for this purpose. A sort of different designs regarding their geometry arrangement as well as the number of constitutive elements have been tested. Experimental characterization has been performed and results including impedance and sensitivity measurements are given.
Quasifractal planar microstrip resonators for microwave circuits
1999
We propose a new shape for microwave planar circuits using the self-similarity of the fractal geometry. This new shape allows the generation of numerous resonant frequencies for this microwave planar resonator due to the surface's encasing. The resonant frequency assessment can be useful for the concept of filters or wide frequency band matching loads as examples, without consuming circuit surface. ©1999 John Wiley & Sons, Inc. Microwave Opt Technol Lett 21: 433–436, 1999.
A Novel Approach to the Characterization and Modelig of Microwave Transistor Packages
1994
A novel approach to the characterization and modeling of microwave transistor packages through dedicated VNA measurements is presented. By combining a multi-step partitioning method with the use of purposely realized - but technologically simple - "package style" test devices, the proposed technique permits to derive in a systematic manner an equivalent circuit for both the transistor package and the test-fixture mount employed for the characterization. Since it does not rely on the indirect, optimization-based, conventional extraction methods of the literature, nor on a simplified circuit structure for the overall parasitic fourport embedding the active device, it is able to provide a high…
A pedagogical flight simulator for longitudinal airplane flight
2009
This article presents a bi-dimensional model of flight and describes the implementation of a flight simulator able to describe the different phases of longitudinal flight of a real airplane. After identifying the relevant physical variables, the equations of motion are written and solved using a numerical integration method. Using computer simulations, flight paths and time evolution of the kinematics variables are analyzed for a complete flight of a light commercial airplane. The simulations take into account and reproduce the basic actions of a pilot to control the flight. The main maneuvers involved in pilotage are also predicted and explained in terms of model parameter variations induc…
Impact of integrating photovoltaic based DG on distribution network harmonics
2017
The process of integrating various distributed generation (DG) technologies in power system networks is increasing rapidly in the recent years. One major concern about the integration of DGs is their impact on network harmonics. The aim of this paper is to investigate the effects caused by the integration of photovoltaic DG in distribution networks on system harmonics. The penetration level, number of DG units, and their location are used as parameters in order to verify the effects of DG on system harmonics. Moreover, a study of single and double tuned filters is conducted as harmonics mitigation techniques. Detailed simulations using Matlab/Simulink are inserted in order to explain and ve…
Ambizioni e insuccessi di alcune politiche di sviluppo locale per il Mezzogiorno. Patti territoriali e Programmi integrati territoriali (Pit)
2008
In 1997 a “new programming” was launched in Italy by the Department of development and cohesion policies in Rome. One of the key features of this new phase was the emphasis on “endogenous” local development, i.e. a development which is mainly based on local actors and productive specializations. The new programming strikingly failed to deliver its expected results. Some wrong expectations were fostered with regard to local political elites (§§ 1). A certain concept of local development is inherently flawed (§§ 2). The first failure was that of “territorial agreements” (patti territoriali), but there is a remarkable reluctancy to admit it (§§ 3). Another experience of “local” development who…
Attitudes towards the English language : A comparison between a CLIL class and a regular class
2009
Sanomattakin on selvää, että oppilaiden kieliasenteet vaikuttavat heidän suhtautumiseensa opetettavaa kieltä ja sen eri osa-alueita kohtaan. Suomalaisten oppilaiden asenteet englannin kieltä kohtaan ovat tutkimusten mukaan melko positiivisia. Suomen kouluissa on kuitenkin nykyään monia erilaisia opetusmetodeja, mutta niiden vaikutusta asenteisiin englannin kieltä kohtaan ei ole vielä tutkittu paljoakaan. Tässä tutkimuksessa tutkittiin sitä, millaisia eroja englanninkielisessä CLIL-opetuksessa olleiden oppilaiden ja tavallisessa opetuksessa olleiden oppilaiden asenteissa englannin kieltä kohtaan oli. Tutkimuksen aineisto kerättiin alakoulun 6.-luokkalaisilta (N=48) lyhyen kyselylomakkeen av…
A virtual integration—The management control system in a multinational enterprise
2008
Abstract This paper draws on actor-network-theory, especially Law and Hassard [Law, J., Hassard, J. (Eds.), 1999. Actor Network Theory and After. Blackwell, Malden, MA] and Latour [Latour, B., 2005. Reassembling the Social. An Introduction to the Actor-Network-Theory. Oxford University Press, Oxford] to investigate how a division-wide management control system was created in a multinational enterprise. The empirical findings were gathered from different actors involved in the implementation of enterprise's ABC and ERP projects. Our study focuses on the ontological politics [Mol, A.-M., 1999. Ontological politics. A word and some questions. In: Law, J., Hassard, J. (Eds.), Actor Network Theo…
Effect of Integrating Photovoltaic Systems on Electrical Network Losses Considering Load Variation
2018
Planning of Distributed Generation (DG) units in the power distribution networks is an important issue, one of the most important considerations that is directly affected by installing DG units is the power losses. Improper allocation of DG units to the grid can lead to a noticeable increase in the power losses. Moreover, the load variation is considered as critical matter when studying the optimal scenario that minimizes the power losses in the network. The aim of this paper is to investigate the effect of integrating photovoltaic (PV) units on the distribution network losses considering load variation. The optimal parameters of the DG units were calculated for the various load demands in …
Stable isotope and fatty acid analysis reveal the ability of sea cucumbers to use fish farm waste in integrated multi-trophic aquaculture
2022
Stable isotope ratios, carbon (δ13C) and nitrogen (δ15N), and fatty acids validated the trophic connection between farmed fish in a commercial nearshore fish farm and sea cucumbers in the Mediterranean Sea. This dual tracer approach evaluated organic matter transfer in integrated multi-trophic aquaculture (IMTA) and the ability of sea cucumbers to incorporate fish farm waste (fish faeces and uneaten artificial fish feed) into their tissue. Between October 2018 and September 2019, Holothuria (Roweothuria) poli Delle Chiaje, 1824, co-cultured at IMTA sites directly below one of the commercial fish cage , at 10 m and 25 m from the selected fish cage, and at two reference sites over 800 m from …