Search results for "APT"
showing 10 items of 5479 documents
Visualizing Time Series State Changes with Prototype Based Clustering
2009
Modern process and condition monitoring systems produce a huge amount of data which is hard to analyze manually. Previous analyzing techniques disregard time information and concentrate only for the indentification of normal and abnormal operational states. We present a new method for visualizing operational states and overall order of the transitions between them. This method is implemented to a visualization tool which helps the user to see the overall development of operational states allowing to find causes for abnormal behaviour. In the end visualization tool is tested in practice with real time series data collected from gear unit.
A distributed real-time data prediction and adaptive sensing approach for wireless sensor networks
2018
International audience; Many approaches have been proposed in the literature to reduce energy consumption in Wireless Sensor Networks (WSNs). Influenced by the fact that radio communication and sensing are considered to be the most energy consuming activities in such networks. Most of these approaches focused on either reducing the number of collected data using adaptive sampling techniques or on reducing the number of data transmitted over the network using prediction models. In this article, we propose a novel prediction-based data reduction method. furthermore, we combine it with an adaptive sampling rate technique, allowing us to significantly decrease energy consumption and extend the …
An efficient adaptive strategy for searching in peer-to-peer networks
2005
One of the main technical challenges in Peer-to-Peer (P2P) networks is how to efficiently locate desired resources. Although structured systems, based on distributed hash tables, can achieve fair effectiveness, they are not suitable for widely deployed Internet applications. In fact, this kind of systems shows many severe limitations, such as ignoring the autonomous nature of peers, and supporting only weakly semantic functions. Unstructured P2P networks are more attractive for real applications, since they can avoid both the limitations of centralized systems, and the drawbacks of structured approaches. However, their search algorithms are usually based on inefficient flooding schemes, tha…
1653 – The developemnt of adaptive and maladaptive patterns of internet use among european adolescents at risk for internet addictive behaviors: a gr…
2013
Introduction Full findings from the European Commission funded EU-NET-ADB study (Safer Internet Programme) will be presented. Objectives Empirical findings that elucidate the development of an internet addictive behaviour are still incomplete. This is also related to risk as well as protective factors of internet use. Here a process oriented approach to identify underlying conditions of an internet addictive behaviour was chosen. Aims The aim of the study is to enhance the knowledge and understanding of underlying processes which lead to situation were internet addictive behaviour can evolve. Methods In total 124 in-depth interviews were conducted with adolescents with an age of 14-17 year.…
Birds facing climate change: a qualitative model for the adaptive potential of migratory behaviour
2015
Recent climate change is altering the migratory behaviour of many bird species. An advancement in the timing of spring events and a shift in the geographical distribution have been detected for birds around the world. In particular, intra-Palearctic migratory birds have advanced arrivals in spring and shortened migratory distances by shifting northward their wintering grounds. These changes in migratory patterns are considered adaptive responses facilitating the adjustment of the life cycle to the phenological changes found in their breeding areas. However, in some cases, populations exposed to the same selective pressures do not show any appreciable adaptive change in their behaviour. Basi…
Does predation maintain eyespot plasticity in Bicyclus anynana?
2004
The butterfly Bicyclus anynana exhibits phenotypic plasticity involving the wet-season phenotype, which possesses marginal eyespots on the ventral surface of the wings, and the dry-season form, which lacks these eyespots. We examined the adaptive value of phenotypic plasticity of B. anynana in relation to the defence mechanisms of crypsis and deflection. We assessed the visibility differences between spotless and spotted butterflies against backgrounds of brown (dry season) or green (wet season) leaves. Spotless butterflies were highly cryptic and less predated by adult bird predators than were spotted ones when presented against brown leaf litter. However, the advantage of crypsis disappea…
Maternal transfer of antibodies: raising immuno-ecology issues.
2007
The transfer of antibodies from mother to offspring has broad potential implications in evolutionary ecology, from the adaptive value of maternal effects to the role of transgenerational plasticity in host-parasite interactions. Recent contributions have addressed key issues such as environmental and genetic factors affecting the amount of antibodies transferred and whether maternal antibodies affect offspring immunity, but little is still known about the implications of the maternal transfer of antibodies in natural populations. By its position at the crossroads between population ecology, animal science, medicine and epidemiology, current studies of the role of the maternal transfer of an…
Optimization design process of a morphing winglet
2018
Aeronautic and aerospace engineering is recently moving in the direction of developing morphing wing devices, with the aim of making adaptable the aerodynamic shapes to different operational conditions. Those devices may be classified according to two different conceptual architectures: kinematic or compliant systems. Both of them embed within their body all the active components (actuators and sensors), necessary to their operations. In the first case, the geometry variation is achieved through an augmented classical mechanism, while in the second case the form modification is due to a special arrangement of the inner structure creating a distributed elastic hinges arrangement. Whatever is…
Adaptācijas sekmēšana rotaļās agrajā bērnībā pirmsskolas izglītības iestādē
2017
Bakalaura darba tēma: Adaptācijas sekmēšana rotaļās agrajā bērnībā pirmsskolas izglītības iestādē. Darba autors: Madara Rimša Darba vadītājs: Tija Zīriņa Mērķis: Teorētiski analizēt bērnu adaptācijas sekmēšanas iespējas rotaļās agrajā bērnībā pirmsskolas izglītības iestādē. Uzdevumi: 1.Analizēt adaptācijas jēdzienu un adaptācijas problēmas agrajā bērnībā. 2.Noskaidrot pedagoģiskos paņēmienus adaptācijas veicināšanai agrās bērnības vecumā. 3.Veikt pētījumu par bērnu adaptācijas veicināšanu agrās bērnības vecumā. 4.Izstrādāt ieteikumus pedagogiem bērnu adaptācijas veicināšanai agrās bērnības vecumā. Darba teorētiskā daļa tika balstīta uz zināmu autoru citātiem un atziņām. Kā, piemēram, I. Sta…
Darbinieku adaptācijas procesa nodrošināšana pašvaldības iestādē “X”.
2018
Kvalifikācijas darba ,,Darbinieku adaptācijas procesa nodrošināšana pašvaldības iestādē ,,X” autore ir Dzintra Dimpere. Kvalifikācijas darba mērķis ir pētīt adaptācijas procesa nodrošināšanu un izstrādāt priekšlikumus adaptācijas procesa pilnveidei pašvaldības iestādē ,,X” un rast atbildi uz pētījuma jautājumiem: •Vai pirmajā darba dienā darbinieks ir iepazīstināts ar kolēģiem un tiešo vadītāju? •Kādā veidā jaunie darbinieki saņem detalizētu izklāstu par darba specifiku? •Vai noritējis apmācības process ar vadītāja iesaisti darba vietā? Kvalifikācijas darba mērķu sasniegšanai tika veikta zinātniskās literatūra analīze par personāla vadību, jauno darbinieku adaptāciju un komunikāciju uzņēmum…