Search results for "Hard"
showing 10 items of 2294 documents
Smart NeuroCam with High Level Configuration Tool
2017
Thème de la conférence : New Circuits and Systems; International audience
Noise characterization of analog to digital converters for amplitude and phase noise measurements
2017
International audience; Improvements on electronic technology in recent years have allowed the application of digital techniques in phase noise metrology where low noise and high accuracy are required, yielding flexibility in systems implementation and setup. This results in measurement systems with extended capabilities, additional functionalities and ease of use. In most digital schemes the Analog to Digital Converters (ADCs) set the ultimate performance of the system, therefore the proper selection of this component is a critical issue. Currently, the information available in literature describes in depth the ADC features only at frequency offsets far from the carrier. However, the perfo…
Şeffaf cisimlerim 3B taranması
2010
Many practical tasks in industry, such as automatic inspection or robot vision, often require scanning of three-dimensional shapes with non-contact techniques. However, transparent objects, such as those made of glass, still pose difficulties for classical scanning techniques. The reconstruction of surface geometry for transparent objects is complicated by the fact that light is transmitted through, refracted and in some cases reflected by the surface. Current approaches can only deal relatively well with sub-classes of objects. The algorithms are still very specific and not generally applicable. Furthermore, many techniques require considerable acquisition effort and careful calibration. T…
Joint Optimization of Sensor Selection and Routing for Distributed Estimation in Wireless Sensor Networks
2014
Avances recientes en redes inalámbricos de sensores (WSNs, Wireless Sensor Networks) han posibilitado que pequeños sensores, baratos y con recursos limitados tanto en sensado, comunicación, como en computación, sean desplegados a gran escala. En consecuencia, las WSNs pueden ofrecer diversos servicios en importantes aplicaciones para la sociedad. Entre las varias restricciones que aparecen en el diseño de WSNs, tales como la limitación en energía disponible, procesamiento y memoria, la limitación en energía es muy importante ya que en muchas aplicaciones (ej., monitorización remota de diferentes entornos, edificios administrativos, monitoreo del hábitat, los incendios forestales, la atenció…
Qanat, gebbie and water sources: the last refuge for the malacologican freshwater fauna in Palermo (Sicily, Italy)
2017
The surroundings of Palermo were characterized, over the centuries, by the presence of many natural environments of great ecological and faunal importance. These environments were placed in a context characterized by minimal and sustainable urban development and large agriculture areas, dedicated to the development of tree crops such as citrus and orchards. These crops were supported by an imposing irrigation system that, using natural resources such as watercourses, wells and springs, collected and distributed water in soils through tanks, gebbie, qanat, irrigation channels (saje), etc. Fresh water mollusks, like many other animal and vegetable organisms, spread from the natural freshwater…
Browsing the information highway while driving: three in-vehicle touch screen scrolling methods and driver distraction
2012
Distraction effects of three alternative touch screen scrolling methods for searching music tracks on a mobile device were studied in a driving simulation experiment with 24 participants. Page-bypage scrolling methods with Buttons or Swipe that better facilitate resumption of visual search following interruptions were expected to lead to more consistent in-vehicle glance durations and thus, on less severe distraction effects than Kinetic scrolling. As predicted, Kinetic scrolling induced decreased visual sampling efficiency and increased visual load compared to Swipe, increased experienced workload compared to both Buttons and Swipe, as well as decreased lane keeping accuracy compared to ba…
"Another bar, another culture: the Thompson mix" : rock- ja perinnemusiikkivaikutteiden yhdistyminen Richard Thompsonin kitarasooloissa
1997
Melodieen zu dem Oppelner Katholischen Gesangbuche Bernharda Kothego (1821–1897). Dzieje i repertuar
2021
Muzyka kościelna na przełomie XVIII i XIX wieku przeżywała kryzys. Pozycja organisty w społeczeństwie uległa dewaluacji, a za kontuarem zasiedli przypadkowi ludzie. Niezwykle potrzebne w tym momencie okazały się wszelkie materiały przybliżające rolę muzyki w kościele, ale także takie, dzięki którym znający nuty kandydat mógł od razu rozpocząć posługę organisty. Pragnienie zapełnienia tej luki towarzyszyło Bernhardowi Kothemu, dyrektorowi muzycznemu kościoła św. Krzyża w Opolu, w 1865 roku, podczas komponowania zbioru towarzyszeń organowych Melodieen zu dem Oppelner katholischen Gesangbuche. Niniejszy artykuł dzieli się na trzy części. W pierwszej przybliżona zostanie postać Bernharda Kotheg…
A Self-powered Ambient Light Power Measurement Platform with Time-domain Readout
2021
Internet of Things (IoT) provides more and more adequate infrastructures for many applications and advanced services. This scenario promotes the ability to satisfy the growing demand for innovative measuring systems, increasingly popular consisting of intelligent nodes, totally wireless, easy to install, and that requires the least possible maintenance. In this context, this paper aims to contribute to state of the art with an energy-autonomous and battery-free measurement platform designed to measure the ambient light power when its level exceeds the sensitivity threshold. The measurement platform utilizes a single transducer to scavenge energy and concurrently measure the ambient light in…
Kvantu algoritmi algoritmiskās ģeometrijas uzdevumiem
2019
Viens no svarīgākajiem uzdevumiem teorētiskajā datorzinātnē ir 3SUM uzdevums. 3SUM uzdevumu var formulēt sekojoši: ir dota kopa S ar n veseliem skaitļiem, ir jānoteic, vai eksistē tādi a, b, c ∈ S, ka a + b + c = 0. Šim uzdevumam algoritms ar sarežģītību O(n^(2-ϵ)) nav zināms. Uzdevums 3SUM ir reducējams uz daudziem ģeometriskajiem uzdevumiem, un tiem algoritms ar sarežģītību O(n^(2-ϵ)) arī nav zināms. Darbā ir apvienotas divas svarīgas datorzinātnes nozares: kvantu skaitļošana un algoritmiskā ģeometrija ar mērķi izveidot kvantu algoritmus 3SUM-HARD klases ģeometriskajiem uzdevumiem. Daudziem no tiem ir atrasts kvantu algoritms ar sarežģītību O(n^(1+o(1))).