Search results for "YB"
showing 10 items of 4411 documents
Emergency Response Model as a part of the Smart Society
2021
Centralized hybrid emergency model with predictive emergency response functions is necessary when the purpose is to protect the critical infrastructure (CI). A shared common operational picture among Public Protection and Disaster Relief (PPDR) authorities means that a real-time communication link from the local level to the state-level exists. If a cyberattack would interrupt electricity transmission, telecommunication networks will discontinue operating. Cyberattack becomes physical in the urban and maritime area if an intrusion has not been detected. Hybrid threats require hybrid responses. The purpose of this qualitative research was to find out technological-related fundamental risks …
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…
Ramowanie bezpieczeństwa w debatach telewizyjnych w kampaniach wyborczych: samorządowej (2014) i parlamentarnej (2015)
2018
Celem badań przedstawionych w niniejszym artykule było zdiagnozowanie miejsca oraz ram interpretacyjnych (framingu) zagadnień związanych z bezpieczeństwem w debatach przedwyborczych. Analizie poddane zostały debaty telewizyjne, które odbyły się w miastach wojewódzkich przed wyborami samorządowymi z 2014 r. oraz parlamentarnymi z 2015 r. Prezentowane badania pokazują zasadnicze zróżnicowanie, zarówno jeśli chodzi o obecność kwestii bezpieczeństwa w debacie na poziomie krajowym ^lokalnym, jak i narracji stosowanej w odniesieniu do poszczególnych typów bezpieczeństwa.
Zastosowania odnawialnych źródeł energii w gospodarstwie rolnym
2016
W pracy dokonano analizy dostępnych rozwiązań z zakresu wykorzystania odnawialnych źródeł energii w gospodarstwie rolnym. Dokonano charakterystyki efektywności zastosowania różnego typu źródeł energii odnawialnej w ramach mikrosieci energetycznych. Określono ilość energii produkowanej przez proponowane instalacje odnawialnych źródeł energii oraz czas po jakim zwrócą się koszty wykonania instalacji. Przedstawiono koncepcję wykorzystania układów hybrydowych elektrowni przydomowych dla gospodarstw rolnych.
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…
Revisiting neutralization theory and its underlying assumptions to inspire future information security research
2022
Over two decades ago, neutralization theory was introduced to information systems research from the field of criminology and is currently emerging as an influential foundation to both explain and solve the information security policy noncompliance problem. Much of what we know about the theory focuses exclusively on the neutralization techniques identified in the original as well as subsequent criminological writings. What is often left unexamined in IS research is the underlying assumptions about the theory’s core elements; assumptions about the actor, the act, the normative system, and the nature of neutralizing itself. The objective of this commentary is to revisit the origin of neutrali…
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…