Search results for "O3"

The Adoption of The Internet of Things by Young Consumers – an Empirical Investigation

2017

On the background of theoretical considerations and literature review, this article presents the results of the preliminary study of young consumers about their adoption of the Internet of Things (IoT) - treated as the emerging technology, creating a new quality of information technology usage, despite perceived costs and privacy concerns. The data for the analysis came from purpose sample of 223 young consumers from Eastern Poland via CAWI questionnaire. The primary goal of the research was to explore the adoption of IoT by young consumers in Poland regarding the level of adoption and factors explaining this phenomenon. The main analysis used univariate analysis of variance (UNIANOVA) and …

Study of a chromia-forming alloy behavior as interconnect material for High Temperature Vapor Electrolysis

2011

In High Temperature Vapor Electrolysis (HTVE) system, the materials chosen for the interconnectors should have a good corrosion behaviour in air and in H2-H2O mixtures at 800°C, and keep a high electronic conductivity over long durations as well. In this context, the first goal of this study was to evaluate a commercial ferritic alloy (the K41X alloy) as interconnect for HTVE application. Oxidation tests in furnace and in microbalance have therefore been carried out in order to determine oxidation kinetics. Meanwhile, the Area Specific Resistance (ASR) was evaluated by Contact Resistance measurements performed at 800°C. The second objective was to improve our comprehension of chromia-formin…

On the Returns to Invention within Firms: Evidence from Finland

2018

International audience; In this paper we merge individual income data, firm-level data, patenting data, and IQ data in Finland over the period 1988–2012 to analyze the returns to invention for inventors and their coworkers or stakeholders within the same firm. We find that: (i) inventors collect only 8 percent of the total private return from invention; (ii) entrepreneurs get over 44 percent of the total gains; (iii) bluecollar workers get about 26 percent of the gains and the rest goes to white-collar workers. Moreover, entrepreneurs start with significant negative returns prior to the patent application, but their returns subsequently become highly positive.

Zvaigžņotā Debess: 2000, Pavasaris (167)

2000

Contents: P.Müürsepp. B.Schmidt, Prominent Optician of 20th Century ; J.Miezis. Buildings on the Moon ; Z.Alksne, A.Alksnis. Stars Enshrouded in Envelopes ; A.Alksnis. Goals and Progress of the DENIS Program ; Z.Alksne. Shapley Supercluster – Playground of Clusters of Galaxies ; A.Alksnis. Wide Field Imager Discovers Distant Galaxies ; J.Jaunbergs. Roton SSTO: First Flight Tests ; M.Gills. Space Research 40 Years Ago – Chronicle ; I.Vilks. The Secret of Low-Probability Complexity in the Universe ; K.Bērziņš. On Friendly Terms with Cosmology: Development of Cosmological Views (concluded) ; A.Balklavs. Astronomy in the Internet (WWW) ; V.Flerov, A.Cēbers. Latvia 23rd Open Olympiad of Physics:…

Time resolved confocal luminescence investigations on reverse proton exchange Nd : LiNbO3 channel waveguides

2009

In this work we report on the time and spatial resolved fluorescence of Neodymium ions in LiNbO(3) channel waveguides fabricated by Reverse Proton Exchange. The analysis of the fluorescence decay curves obtained with a sub-micrometric resolution has evidenced the presence of a relevant fluorescence quenching inside the channel waveguide. From the comparison between diffusion simulations and the spatial dependence of the (4)F(3/2) fluorescence decay rate we have concluded that the observed fluorescence quenching can be unequivocally related to the presence of H+ ions in the LiNbO(3) lattice. Nevertheless, it turns out that Reverse Proton Exchange guarantees a fluorescence quenching level sig…

(Table 1) Geochemistry of ODP Site 160-963 sediments

2010

The Mediterranean Sea acts as a miniature ocean with the development of its own conveyor belt. It constitutes an ideal location to study and forecast how the marine environment responds to rapid climatic change. Here we present a palaeoenvironmental study carried out on the sediments of ODP Site 963, recovered in the Sicily Channel, the sill which divides the western from the eastern Mediterranean basin. We focused on the transition between the penultimate glacial (MIS 6) and the last interglacial (MIS 5), between approximately 130 and 115 kyr BP. A novel approach is proposed, taking into account centennial-scale geochemical data on major elements, selected trace elements, and yttrium and R…

Grafēna/metāla oksīda kompozīta elektroforētiska iegūšana un fizikāli ķīmiskās īpašības

2015

Darbā tiek pētīti divu metālu oksīdu, Fe2O3 un TiO2, trīs kompozītmateriālu kombinācijas ar grafēna oksīdu, GO, kam tiek izstrādāta elektroforētiska kārtiņu iegūšanas metode. Materiāliem veikta elektroķīmisko īpašību izpēte. Materiāliem iegūtas attiecīgas gravimetriskās lādiņietilpības: TiO2/reducēta GO materiālam 116 mAh/g pie 20 mA/g strāvas, Fe2O3/reducēta GO materiālam 39 mAh/g pie 30 mA/g, TiO2/Fe2O3/reducēta GO materiālam 93 mAh/g pie 50 mA/g, paraugiem, kas reducēti 700 °C, bet paraugiem, kas reducēti 500 °C: TiO2/reducēta GO materiālam 775 mAh/g pie 125 mA/g, Fe2O3/reducēta GO materiālam 232 mAh/g pie 1000 mA/g; TiO2/Fe2O3/reducēta GO materiālam 985 mAh/g pie 110 mA/g. TiO2/Fe2O3/re…

Circular approach for the valorisation of industrial waste heat and industrial effluents

2021

Electric field modification of magnetotransport in Ni thin films on (011) PMN-PT piezosubstrates

2015

This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Appl. Phys. Lett. 106, 062404 (2015) and may be found at https://doi.org/10.1063/1.4907775 This study reports the magnetotransport and magnetic properties of 20 nm-thick polycrystalline Ni films deposited by magnetron sputtering on unpoled piezoelectric (011) [PbMg1/3Nb2/3O3]0.68-[PbTiO3]0.32 (PMN-PT) substrates. The longitudinal magnetoresistance (MR) of the Ni films on (011) PMN-PT, measured at room temperature in the magnetic field range of −0.3 T < μ0H < 0.3 T, is found to depend on the crystallographic direction and polarization state …

Hormone replacement therapy enhances IGF-1 signaling in skeletal muscle by diminishing miR-182 and miR-223 expressions : a study on postmenopausal mo…

2014

MiRNAs are fine-tuning modifiers of skeletal muscle regulation, but knowledge of their hormonal control is lacking. We used a co-twin case-control study design, that is, monozygotic postmenopausal twin pairs discordant for estrogen-based hormone replacement therapy (HRT) to explore estrogen-dependent skeletal muscle regulation via miRNAs. MiRNA profiles were determined from vastus lateralis muscle of nine healthy 54-62-years-old monozygotic female twin pairs discordant for HRT (median 7 years). MCF-7 cells, human myoblast cultures and mouse muscle experiments were used to confirm estrogen's causal role on the expression of specific miRNAs, their target mRNAs and proteins and finally the act…