Search results for "Hybri"
showing 10 items of 2146 documents
(no title)
2017
Biological invasions are recognized as a significant evolutionary factor over short time scales. In particular, their effect is well recorded on the genetic structure of populations, the patterns of phenotypic evolution and the richness of parasite fauna associated to invasive populations. This study aims at quantifying the consequences of a biological invasion according to these three levels (genetical, phenotypical and parasitological) taking as example the Mozambique tilapia Oreochromis mossambicus. This African cichlid is characterized by an unusual conservation status since it is both (i) ranked among the world's worst invasive species due to its global dispersion during the 20th centu…
Stationary, Second Use Battery Energy Storage Systems and Their Applications: A Research Review
2021
The global demand for electricity is rising due to the increased electrification of multiple sectors of economic activity and an increased focus on sustainable consumption. Simultaneously, the share of cleaner electricity generated by transient, renewable sources such as wind and solar energy is increasing. This has made additional buffer capacities for electrical grids necessary. Battery energy storage systems have been investigated as storage solutions due to their responsiveness, efficiency, and scalability. Storage systems based on the second use of discarded electric vehicle batteries have been identified as cost-efficient and sustainable alternatives to first use battery storage syste…
Identification of mycorrhiza-regulated genes with arbuscule development-related expression profile
2004
Suppressive subtractive hybridisation was applied to the analysis of late stage arbuscular mycorrhizal development in pea. 96 cDNA clones were amplified and 81, which carried fragments more than 200 nt in size, were sequence analysed. Among 67 unique fragments, 10 showed no homology and 10 were similar to sequences with unknown function. RNA accumulation of the corresponding 67 genes was analysed by hybridisation of macro-arrays. The cDNAs used as probes were derived from roots of wild type and late mutant pea genotypes, inoculated or not with the AM fungus Glomus mosseae. After calibration, a more than 2.5-fold mycorrhiza-induced RNA accumulation was detected in two independent experiments…
Techno-economic pre-feasibility study of wind and solar electricity generating systems for households in Central Finland
2014
The objective of this work is to investigate the viability of a wind, PV or hybrid wind-PV system supplemented with battery storage for electricity production to meet the electricity consumption of a typical household apartment in Central Finland. The assessment criteria for the analysis were cost of energy and total net present cost of each system configuration. We selected the Hybrid Optimization Model for Electric Renewables (HOMER) software, RETScreen, and PVsyst in our analysis and finally only HOMER was considered for performing system optimization analysis because of the creditability of its results. A PV-battery system is recognized as the most economically feasible option in our si…
Patterning of supported gold monolayers via chemical lift-off lithography
2017
The supported monolayer of Au that accompanies alkanethiolate molecules removed by polymer stamps during chemical lift-off lithography is a scarcely studied hybrid material. We show that these Au–alkanethiolate layers on poly(dimethylsiloxane) (PDMS) are transparent, functional, hybrid interfaces that can be patterned over nanometer, micrometer, and millimeter length scales. Unlike other ultrathin Au films and nanoparticles, lifted-off Au–alkanethiolate thin films lack a measurable optical signature. We therefore devised fabrication, characterization, and simulation strategies by which to interrogate the nanoscale structure, chemical functionality, stoichiometry, and spectral signature of t…
Kahden maan irtolainen : Namibian ulkosuomalaisten kulttuurinen identiteetti 2000-luvulla
2008
ulkosuomalaiset 2000-luvulla. Tutkimuksen tarkoituksena oli selvittää namibiansuomalaisten kulttuurisen identiteetin muodostumista suomalaisen ja namibialaisen yhteiskunnan ristivedossa. Tähän pyrittiin tarkastelemalla merkitysvälitteisesti niitä kulttuurisen identiteetin tekijöitä, jotka liittyvät muista ryhmistä erottautumiseen, kulttuurisiin piirteisiin ja arvoihin sekä vuorovaikutusverkostoihin. Tutkielmaa varten haastateltiin kahtatoista Namibian pääkaupungissa Windhoekissa tilapäisesti tai vakituisesti asuvaa Suomen kansalaista. Haastateltavat löydettiin Suomen Windhoekin suurlähetystön ylläpitämältä suomalaislistalta. Aineisto kerättiin teemahaastattelumenetelmällä ja analysoitiin kv…
Search for photons with energies above 1018 eV using the hybrid detector of the Pierre Auger Observatory
2017
A search for ultra-high energy photons with energies above 1 EeV is performed using nine years of data collected by the Pierre Auger Observatory in hybrid operation mode. An unprecedented separation power between photon and hadron primaries is achieved by combining measurements of the longitudinal air-shower development with the particle content at ground measured by the fluorescence and surface detectors, respectively. Only three photon candidates at energies 1-2 EeV are found, which is compatible with the expected hadron-induced background. Upper limits on the integral flux of ultra-high energy photons of 0.027, 0.009, 0.008, 0.008 and 0.007 km-2 sr-1 yr-1 are derived at 95% C.L. for ener…
Age of Information Based URLLC-enabled UAV Wireless Communications System
2022
This paper considers an unmanned aerial vehicles (UAV) communication network, where UAV operate as an aerial mobile relay between a source and a destination of the network. To capture the “timelines” of the received information at the destination node, a new performance metric named age of information (AoI) is considered. In addition, a short packet communication scheme maintains low latency in the proposed UAV wireless communication system. The finite block-length theory investigates the performances of short packet communications scheme in the UAV-assisted wireless communications system. In this paper, the Average Age of Information (AAoI) is estimated by applying the Stochastic Hybrid Sy…
Dual Enzyme-Triggered Controlled Release on Capped Nanometric Silica Mesoporous Supports
2012
The development of nanoscopic hybrid materials equipped with “molecular gates” showing the ability of releasing target entrapped guests upon the application of an external trigger has attracted great attention and has been extensively explored during recent years.1 These nanodevices are composed of two subunits, namely, a suitable support and certain capping entities grafted on the surface of the scaffolding.2 The support is used as a suitable reservoir in which certain chemicals can be stored whereas the molecules grafted in the outer surface act as a “gate” and can control the release of the entrapped molecules at will. Both components are carefully selected and arranged in order to achie…
Julkiset palvelutuotantotehtävät suomalaisten liikuntaseurojen muodonmuutosten lähteenä
2022
Suomalaisessa yhteiskunnassa kansalaistoimijoilla on aina ollut merkittävä asema väestön hyvinvoinnin ja sosiaalisen turvallisuuden tuottamisessa. Viime vuosina julkinen sektori on kuitenkin pyrkinyt laajentamaan muiden yhteiskuntasektorien toimijoiden, kuten liikunta- ja urheiluseurojen, osallistumista kansalaisten palvelutuotantoon. Tarkastelemme artikkelissa, (1) millaisiin julkisten palvelujen tuotantotehtäviin liikuntaseurat ovat olleet valmiita sitoutumaan ja (2) miten tehtävät ovat muuttaneet seuratoimintaa. Lähestymme tutkimusaihettamme vertailemalla kahdeksaa julkiseen palvelutuotantoon paikallisesti sitoutunutta liikuntaseuraa. Tutkimusaineistomme koostuu tapaustutkimusseurojen to…