Search results for "Elektroni"

LU Bibliotēkas SSBA jaunās iespējas lietotāju apkalpošanā

2005

Prezentācijā sniegta informācija par SSBA pakalpojumu, elektronisko dokumentu piegādi (dienesti, apmaksas kārtība, cenas).

Linguistica Lettica, Nr. 12

2003

Radiation Hardness Assurance Through System-Level Testing: Risk Acceptance, Facility Requirements, Test Methodology, and Data Exploitation

2021

International audience; Functional verification schemes at a level different from component-level testing are emerging as a cost-effective tool for those space systems for which the risk associated with a lower level of assurance can be accepted. Despite the promising potential, system-level radiation testing can be applied to the functional verification of systems under restricted intrinsic boundaries. Most of them are related to the use of hadrons as opposed to heavy ions. Hadrons are preferred for the irradiation of any bulky system, in general, because of their deeper penetration capabilities. General guidelines about the test preparation and procedure for a high-level radiation test ar…

Consistent device simulation model describing perovskite solar cells in steady-state, transient, and frequency domain

2019

​This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Materials & Interfaces, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acsami.9b04991

Synthesis of a labile sulfur-centred ligand, [S(H)C(PPh2S)2]−: structural diversity in lithium(i), zinc(ii) and nickel(ii) complexes

2016

A high-yield synthesis of [Li{S(H)C(PPh2S)2}]2 [Li2·(3)2] was developed and this reagent was used in metathesis with ZnCl2 and NiCl2 to produce homoleptic complexes 4 and 5b in 85 and 93% yields, respectively. The solid-state structure of the octahedral complex [Zn{S(H)C(PPh2S)2}2] (4) reveals notable inequivalence between the Zn-S(C) and Zn-S(P) contacts (2.274(1) Å vs. 2.842(1) and 2.884(1) Å, respectively). Two structural isomers of the homoleptic complex [Ni{S(H)C(PPh2S)2}2] were isolated after prolonged crystallization processes. The octahedral green Ni(ii) isomer 5a exhibits the two monoprotonated ligands bonded in a tridentate (S,S',S'') mode to the Ni(ii) centre with three distinctl…

The Role of Electronic Channels in Micro-Sized Brick-and-Mortar Firms

2010

The purpose of this study is to increase understanding of the role of electronic channels in micro-sized brick-and-mortar firms, which are just starting to utilize new channels in the promotion of their goods and services. With the use of a multiple case study method containing ten cases, the study first identifies external and internal factors affecting the adoption and use of e-channels in micro-sized firms. Secondly, the results propose, in line with previous literature, that different e-channel utilization levels can be identified. The paper provides both theoretical and managerial implications. peerReviewed

Real time optical immunosensing with flow-through porous alumina membranes

2014

Through the presentation of analytical data from bioassay experiments, measured by polarimetry, we demonstrate for the first time a real time immunoassay within a free standing macroporous alumina membrane. The 200 nm nominal pore diameter of the membrane enables flow-through, thereby providing an ideal fluidic platform for the targeted delivery of analytes to bioreceptors immobilized on the pore walls, enabling fast sensing response times and the use of small sample volumes (<100 mu L). For the immunoassay, the pore walls were first coated with the functional copolymer, copoly(DMA-NAS) using a novel coupling process, before immobilization of the allergen protein, beta-lactoglobulin, by spo…

Czynności notarialne online – podstawy de lege lata i uwagi de lege ferenda

2020

The text attempts to conceptualize the possible reform of the procedure of making notarial deeds in Poland. It examines the feasibility of drafting and signing these deeds in the course of online communication between parties. The analysis builds on the significant constraints for the classic notarial procedure (based on paper documents and on the physical presence of a notary and parties) that were triggered by the Covid-19 pandemic. Its aim reaches, however, further beyond the present-day realities and seeks possible ways to generally modernize provisions on notarial deeds and to adjust them to the growing proliferation of online communication in the society. The text ascertains that the …

Current Rectification in Junctions with Spin-Split Superconductors

2022

Spin-split superconductors exhibit an electron-hole asymmetric spin-resolved density of states, but the symmetry is restored upon averaging over spin. On the other hand, asymmetry appears again in tunneling junctions of spin-split superconductors with a spin-polarized barrier. As demonstrated recently in both theory and experiment, this fact leads to a particularly strong thermoelectric effect in superconductor-ferromagnet structures. In this work we show another important effect stemming from the electron-hole asymmetry: current rectification. We calculate the charge current in spin-polarized tunnel junctions of a normal metal and a spin-split superconductor with ac and dc voltage bias. In…

Phase-dependent microwave response of a graphene Josephson junction

2021

Gate-tunable Josephson junctions embedded in a microwave environment provide a promising platform to in situ engineer and optimize novel superconducting quantum circuits. The key quantity for the circuit design is the phase-dependent complex admittance of the junction, which can be probed by sensing a radio frequency SQUID with a tank circuit. Here, we investigate a graphene-based Josephson junction as a prototype gate-tunable element enclosed in a SQUID loop that is inductively coupled to a superconducting resonator operating at 3 GHz. With a concise circuit model that describes the dispersive and dissipative response of the coupled system, we extract the phase-dependent junction admittanc…