Search results for "JUNCTION"
showing 10 items of 862 documents
Alkylthio-tetrasubstituted μ-Nitrido Diiron Phthalocyanines: Spectroelectrochemistry, Electrical Properties, and Heterojunctions for Ammonia Sensing.
2020
Alkylthio-tetrasubstituted μ-nitrido diiron phthalocyanine complexes are synthesized with n-butyl, iso-butyl, tert-butyl, and n-hexadecyl alkyl moieties. For the first time, a spectroelectrochemical investigation of μ-nitrido diiron phthalocyanines is achieved at all the redox steps. The complexes are stable in all their redox states, unlike their unsubstituted analogues. The interest of the present complexes is to prepare sensing devices by a solution processing method. Films are characterized by electronic absorption and Raman spectroscopies. Electrical measurements on resistors show the highly resistive behavior of these complexes, whatever the chain length. However, when combined with t…
Surface and interface effects on the current-voltage characteristic curves of multiwall carbon nanotube-Si hybrid junctions selectively probed throug…
2021
The possibility to increase the efficiency of photovoltaic (PV) cells based on hybrid carbon nanotube (CNT)–Si heterojunctions is related to the ability to control the chemical properties of the CNT–Si interface and of the CNT bundle layer. In spite of the encouraging performances of PV cells based on multiwall (MW) CNT, so far few efforts have been made in the study of this device compared to single wall (SW) CNT–Si interfaces. Here, surface and interface effects on the current–voltage characteristic curves of MW CNT–Si hybrid junctions are investigated through exposure to HF vapors and to 10 ppm-NO2 and compared to the effects detected in SW CNT–Si junctions. Quite similar results in term…
Spunti per una rilettura della disciplina giuridica degli internet service provider
2017
The essay addresses the issue of the so called Internet Service Provider's Liability under artt. 12-14 dir. 00/31, with specific regard to the violations of copyright. The study aims at demonstrating that European Law on ISP is not a law on tort, but regulates a sphere of lawful action in favor of Internet Service Providers. The analysis of the Court of Justice's case-law reveals that the primary remedy against offenses committed on the internet is an injunction, while damages are only a secondary relief. This confirms the hypothesis that artt. 12-14 dir. 00/31 draw the perimeter of the legitimate activity of the Internet Service Provider. The essay ends with a re-interpretation of the Ital…
On the Fast and Rigorous Analysis of Compensated Waveguide Junctions Using Off-Centered Partial-Height Metallic Posts
2007
In this paper, we present an efficient and rigorous method, based on the 3-D boundary integral-resonant-mode expansion technique, for the analysis of multiport rectangular waveguide junctions compensated with partial-height cylindrical metallic posts. The electrical performance of a great variety of commonly used wideband microwave circuits has been improved drastically thanks to the introduction of a new design parameter, i.e., the relative position of the metallic post in the structure. To the authors' knowledge, this parameter has not been taken into account in previous studies concerning compensated junctions using partial-height metallic posts. The developed tool has been successfully …
Superconducting spintronic tunnel diode
2022
Diodes are key elements for electronics, optics, and detection. Their evolution towards low dissipation electronics has seen the hybridization with superconductors and the realization of supercurrent diodes with zero resistance in only one direction. Here, we present the quasi-particle counterpart, a superconducting tunnel diode with zero conductance in only one direction. The direction-selective propagation of the charge has been obtained through the broken electron-hole symmetry induced by the spin selection of the ferromagnetic tunnel barrier: a EuS thin film separating a superconducting Al and a normal metal Cu layer. The Cu/EuS/Al tunnel junction achieves a large rectification (up to ∼…
Fabrication, Electrical Characterization and 1/f Noise Study of Submicron-sized Superconducting Tunnel Junctions
2016
The Form is Not a Proper Part in Aristotle’s Metaphysics Z.17, 1041b11–33
2018
When Aristotle argues at the 'Metaphysics' Z.17, 1041b11–33 that a whole, which is not a heap, contains ‘something else’, i.e. the form, besides the elements, it is not clear whether or not the form is a proper part of the whole. I defend the claim that the form is not a proper part within the context of the relevant passage, since the whole is divided into elements, not into elements and the form. Different divisions determine different senses of ‘part’, and thus the form is not a part in the same sense as the elements are parts. I object to Koslicki’s (2006) interpretation, according to which the form is a proper part along the elements in a single sense of ‘part’, although she insists th…
Aportació a l'estudi de la conjunció concessiva «jatsia»
2007
Concessive connectors are the focal point of grammaticalization processes, based on several types of lexical sources. In Catalan, «jatsia» (that) is the result of a grammaticalization process based on an aspectual temporary adverb (or phase adverb), which is comparable to the process that produced «encara que». The case of «encara que» has already been studied specifically by Pérez Saldanya & Salvador (1995), while Klesper (1930), Badia (1982) and Cuenca & Massip (2005) have focused on «jatsia» (that). The interest of the study of these processes is increased in the case of «jatsia»(that) by the polymorphism it shows and by the displacement it has experimented in its use, since it has gone …
Noise phenomena and soliton dynamics in long Josephson junctions
2013
In this work we computationally explore the transient dynamics of a noisy Josephson junction (JJ). Principal purpose is to investigate the behavior of the lifetime of the superconductive state as a function of the system and noise source parameters. The relations between the emerging phenomena and the evolution of the JJ order parameter φ, that is the phase difference between the macroscopic wave functions describing the superconducting condensate in the two electrodes, is deeply investigated. We focus our interest on the switching events from the superconducting metastable state, and in particular on the mean escape time (MET). In the used model, a long JJ can be represented by a string co…
Technique for Performing Rectoscopy
1979
After positioning of the patient (Figs. 1 and 11), the instrument is introduced into the anus. The anal canal runs diagonally toward the navel. This distance must be passed blindly. The instrument is therefore guided through this area with the help of the obturator, which is promptly removed after passage of the instrument through the anal canal.