Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Wyszukujesz frazę "Szynkiewicz, A." wg kryterium: Autor


Wyświetlanie 1-12 z 12
Tytuł:
Badania georadarowe (GPR) w archikatedrze fromborskiej w roku 2013
GPR survey inside Frombork Cathedral in 2013
Autorzy:
Udyrysz, M
Szynkiewicz, A.
Powiązania:
https://bibliotekanauki.pl/articles/293664.pdf
Data publikacji:
2014
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
architektura
metoda georadarowa
krypty
ground penetrating radar
graves
tombs
Opis:
W 2013 r. po posadzkach wewnątrz archikatedry we Fromborku wykonane zostały sprawdzające, nieinwazyjne badania georadarowe (GPR). Badania wykonano antenami 800 MHz do głębokości 3 m. Główną uwagę zwrócono na miejsce określone jako „lektorium” (czytelnia). Potwierdzono występowanie silnych anomalii wykrytych tu w 2005 r. podczas pierwszych badań GPR wykonywanych antenami 250 MHz. W pracy omówiona jest metodyka i etapy badań. Pokazano trzy wybrane przekroje georadarowe (GPR) oraz mapkę wykrytych anomalii w części kościoła nazywanej „lektorium”.
In 2013, a non-destructive GPR investigation was carried out over the floors inside the Cathedral in Frombork. The investigation was performed to a depth of 3 m using an 800 MHz antenna. During the studies, the main focus was to find the place conventionally known as the “lectorium” (reading room). The investigation has confirmed the location of the strong anomalies that were identified during the first GPR study using the 250 MHz antenna in 2005. The paper discusses the methods and stages of the research. Three selected GPR cross-sections are shown as examples together with the map of anomalies in the area called the “lectorium”.
Źródło:
Architectus; 2014, 3(39); 3-10
1429-7507
2084-5227
Pojawia się w:
Architectus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Podatność drzew leśnych na opieńkową zgniliznę korzeni
The susceptibility of forest trees to Armillaria root rot
Autorzy:
Szynkiewicz, A.
Kwaśna, H.
Powiązania:
https://bibliotekanauki.pl/articles/973615.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
grzyby
choroby grzybowe
Armillaria
czynniki chorobotwórcze
podatność na choroby
leśnictwo
drzewa leśne
opieńkowa zginilizna korzeni
fitopatologia leśna
armillaria
susceptibility of trees
resistance
stress
Opis:
The susceptibility of forest trees to Armillaria butt and root rot is described. The paper characterises the most common Armillaria species and presents the mechanical, physiological and chemical mechanisms of plant resistance against Armillaria. The importance of stress as a cause of increased susceptibility of plants to infection is emphasised. Stress in plants may be caused by drought or an excess of water in the soil, inappropriate temperature, unsuitable soil pH, shortage of oxygen in the ground, wrong nutrition, lack of light, pollution of the soil or air, and the presence of damaging macro−, mezo− or microflora and fauna. Stress decreases the production of cambium in the affected area, the production of resins that limit colonisation, the intensity of photosynthesis, respiration and the transport of nutrients. Stress causes the hydrolysis of carbohydrates necessary for production of energy required for resistance responses, increases accumulation of glucose and other substances used by Armillaria, favours the degradation of phenols that limit colonization, increases susceptibility to other stress factors, and decreases regeneration of the trees.
Źródło:
Sylwan; 2004, 143, 08; 25-33
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Middle Pliocene Micromammals from Central Poland
Środkowo plioceńskie drobne ssaki z Centralnej Polski
Autorzy:
Sulimski, A.
Szynkiewicz, A.
Woloszyn, B.
Powiązania:
https://bibliotekanauki.pl/articles/22912.pdf
Data publikacji:
1979
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Źródło:
Acta Palaeontologica Polonica; 1979, 24, 3
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Metodyka analiz izotopowych rozpuszczonego węgla nieorganicznego (DIC) i ich zastosowania w badaniach hydrogeologicznych i środowiskowych
Methodology and application of stable isotope analysis of dissolved inorganic carbon (DIC) in hydrogeology and environmental studies
Autorzy:
Szynkiewicz, A.
Drzewicki, W.
Jędrysek, M. O.
Powiązania:
https://bibliotekanauki.pl/articles/2074490.pdf
Data publikacji:
2006
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
rozpuszczony węgiel nieorganiczny (DIC)
izotop węgla
dissolved inorganic carbon
carbon isotopes
Opis:
The analysis of carbon isotope composition of dissolved inorganic carbon (DIC) is widely applied in hydrogeology and environmental studies. The method of analysis is simple and based on conversion of all DIC species to gaseus CO2 under acidic conditions. However, the analytical procedure may involve significant carbon isotope fractionation. Our experimental analysis showed that increasing the time of CO2 extraction influences the increase of ä13C(DIC) value as a result of re-dissolution of CO2 in the water expanded on the vacuum line or/and carbon isotope exchange between the extracted CO2 and the atmospheric CO2. The long time of sample storage yields an increase of ä13C(DIC) value and decrease of DIC concentration. The analytical precision up to š 0,1‰ may be achieved in the case of waters being analyzed few days after sampling. DIC concentration was evaluated according to height of peak 44 in the mass spectrum. The analytical precision of this method was š 2 mgCO2 per dm3. This method is very useful because the measurements of the height of peak 44 and carbon isotope composition of DIC can be performed simultaneously. However, this method is reliable for waters containing more than 4 mg CO2 per dm3
Źródło:
Przegląd Geologiczny; 2006, 54, 9; 797-806
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Degradacja tarasów rolnych w warunkach śródziemnomorskich - wybrane przykłady z Wysp Egejskich (Grecja)
Degradation of terraced slopes in Mediterranean conditions: selected examples from the Aegean Islands (Greece)
Autorzy:
Tsermegas, I.
Dluzewski, M.
Biejat, K.
Szynkiewicz, A.
Powiązania:
https://bibliotekanauki.pl/articles/2084329.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
rolnictwo
tereny rolnicze
kraje srodziemnomorskie
Grecja
erozja
Opis:
The main aim of the study was to estimate the influence of relief, lithology, climatic conditions, methods of wall construction and actual agricultural practice on the degradation of traditional agricultural terraces on the example of three Greek islands. We selected 7 research plots situated in 5 different geological settings - 3 on the Ikaria island, 2 on Thira, and 2 near Plati village on the SW edge of Lassithi Plateau on the Crete island. We used the following methods: GPS RTK measurements, mapping of erosion features, georadar profliling, infiltration rate measurements and interviews with farmers. We find that lithology is the most important factor controlling terraces degradation, but only in relation to methods of cultivation. Traditional agricultural practice helps terraces to remain stable, because cultivated field increases the possibility of infiltration and limits surface runoff. Heavy rainfalls do not affecting terraces stability due to high ground infiltration rate or high permeability of dry-stone walls. Terraces are more stable if they are concordant to the natural slope profile. On the terraced slope erosion is lower than on non-terraced slope. This is true only on the slope with very limited vegetation cover.
Źródło:
Prace i Studia Geograficzne; 2012, 49; 151-171
0208-4589
Pojawia się w:
Prace i Studia Geograficzne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ageing of organic matter in incubated freshwater sediments; in fer ences from C and H isotope ratios of methane
Autorzy:
Szynkiewicz, A.
Modelska, A.
Jedrysek, M-O.
Kurasiewicz, M.
Mastalerz, M.
Powiązania:
https://bibliotekanauki.pl/articles/2059090.pdf
Data publikacji:
2008
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
methanogenic pathways
carbon and hydrogen isotopes
incubation
freshwater sediments
Opis:
The freshwater sediments were incubated under anaerobic conditions for 570 and 879 days to in vestigate the potential variations in methanogenic pathways due to increasing sediment age and recalcitrance of organic matter. The methanogenic pathways did not shift from acetate fermentation toward CO2 reduction, as indicated by the observed variations of the isotopic composition of methane in natural conditions. It appeared, however, that the observed decrease of methane concentration (from 86 to 39%) and continuous in crease in d13C(CH4) (from –69.7 to –59.0‰) and dD(CH4) values (from –381 to –320‰) resulted mainly from exhaustion of at least one methanogenic substratein the incubated sediments. To better understand processes controlling the variations of delta exp.13C(CH4) and deltaD(CH4) values relative to ageing of organic matter, the method of principal component analysis (PCA) was used. This method offers good comparison of the relation ships between variables when a larger number of parameters control a given process in the same time period. In this study, the PCA indicated three distinctive factors that controlled decomposition of organic matter during the incubation. Factor 1 explained 33% of observed variations among the variables and had positive (0.93–0.92) loadings for electric conductivity and DIC concentration and negative loading for delta exp.13C(CH4) val ues (–0.72). Factor 2 accounted for 28% and had high posi ive loading for deltaD(CH4) value (0.86) and high negative loading for methane concentration (–0.81). Factor 3 accounted for 19% and exhibited high positive loadings for temperature (0.90) and delta exp.13C(DIC) value (0.69). Factors 1 and 2 were directly linked to the methanogenesis and indicated that bigger accumulation of bio-products in sediments is likely important for variations of delta exp.3C and deltaD of methane. This study shows that method of principal component analysis might be a useful tool while studying biogeochemical carboncy cleduring early digenesis of freshwater sediments.
Źródło:
Geological Quarterly; 2008, 52, 4; 383-383
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A federated approach to parallel and distributed simulation of complex systems
Autorzy:
Sikora, A.
Niewiadomska-Szynkiewicz, E.
Powiązania:
https://bibliotekanauki.pl/articles/911251.pdf
Data publikacji:
2007
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
modelowanie równoległe
symulacja rozproszona
modelowanie sieci komputerowych
sieć rozległa
parallel simulation
distributed simulation
federated simulators
computer networks simulation
frame relay
Opis:
The paper describes a Java-based framework called ASimJava that can be used to develop parallel and distributed simulators of complex real-life systems. Some important issues associated with the implementation of parallel and distributed simulations are discussed. Two principal paradigms for constructing simulations today are considered. Particular attention is paid to an approach for federating parallel and distributed simulators. We describe the design, performance and applications of the ASimJava framework. Two practical examples, namely, a simple manufacturing system and computer network simulations are provided to illustrate the effectiveness and range of applications of the presented software tool.
Źródło:
International Journal of Applied Mathematics and Computer Science; 2007, 17, 1; 99-106
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
FR/ASimJava: a federated approach to parallel and distributed network simulation in practice
Autorzy:
Sikora, A.
Niewiadomska-Szynkiewicz, E.
Powiązania:
https://bibliotekanauki.pl/articles/308926.pdf
Data publikacji:
2006
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
parallel simulation
computer networks simulation
frame relay
federated simulators
Opis:
The paper addresses issues associated with the application of federations of parallel/distributed simulators to large scale networks simulation. We discuss two principal paradigms for constructing simulations today. Particular attention is paid to an approach for federating parallel/distributed simulators. We describe the design and performance of frame relay network simulator (FR/ASimJava) implemented based on a Java-based library for distributed simulation - ASimJava. Six practical examples - six networks operating under frame relay - are presented to illustrate the operation of the given software tool. The focus is on the efficiency of presented network simulator.
Źródło:
Journal of Telecommunications and Information Technology; 2006, 4; 53-59
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
ASimJava: a Java-based library for distributed simulation
Autorzy:
Niewiadomska-Szynkiewicz, E.
Sikora, A.
Powiązania:
https://bibliotekanauki.pl/articles/308988.pdf
Data publikacji:
2004
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
parallel computations
parallel asynchronous simulation
computer networks simulation
Opis:
The paper describes the design, performance and applications of ASimJava, a Java-based library for distributed simulation of large networks. The important issues associated with the implementation of parallel and distributed simulation are discussed. The focus is on the effectiveness of different synchronization protocols implemented in ASimJava. The practical example -computer network simulation - is provided to illustrate the operation of the presented software tool.
Źródło:
Journal of Telecommunications and Information Technology; 2004, 3; 12-17
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Parallel and Distributed Simulation of Ad Hoc Networks
Autorzy:
Sikora, A.
Niewiadomska-Szynkiewicz, E.
Powiązania:
https://bibliotekanauki.pl/articles/309034.pdf
Data publikacji:
2009
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
ad hoc networks
distributed simulation
mobile network
software systems
Opis:
Modeling and simulation are traditional methods used to evaluate wireless network design. This paper addresses issues associated with the application of parallel discrete event simulation to mobile ad hoc networks design and analysis. The basic characteristics and major issues pertaining to ad hoc networks modeling and simulation are introduced. The focus is on wireless transmission and mobility models. Particular attention is paid to the MobASim system, a Javabased software environment for parallel and distributed simulation of mobile ad hoc networks. We describe the design, performance and possible applications of presented simulation software.
Źródło:
Journal of Telecommunications and Information Technology; 2009, 3; 76-84
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy-saving Algorithms for the Control of Backbone Networks: A Survey
Autorzy:
Kamola, M.
Niewiadomska-Szynkiewicz, E.
Arabas, P.
Sikora, A.
Powiązania:
https://bibliotekanauki.pl/articles/307968.pdf
Data publikacji:
2016
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
green routing
mixed-integer programming
OSPF heuristics
power-save networks
Opis:
The rapid growth of energy demand by wired IP networks can be mitigated on hardware and software levels. While upgrading to more efficient transmission media still brings biggest savings, we take a look here at power-saving algorithms that combine the capability of setting networking equipment in arbitrary energy states which, combined with profound knowledge of the network traffic matrix, leads to considerable complex optimization problem formulations. Alternatively, lightweighted heuristic approaches are presented, built on much simpler network model but still capable to perform energy-efficient traffic engineering.
Źródło:
Journal of Telecommunications and Information Technology; 2016, 2; 13-20
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The IP QoS System
Autorzy:
Burakowski, W.
Śliwiński, J.
Tarasiuk, H.
Bęben, A.
Niewiadomska-Szynkiewicz, E.
Pyda, P.
Mongay Batalla, J.
Powiązania:
https://bibliotekanauki.pl/articles/307862.pdf
Data publikacji:
2011
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
classes of service
DiffServ architecture
multi-service networks
NGN architecture
quality of service
Opis:
This paper shortly describes the IP QoS System which offers strict quality of service (QoS) guarantees in IP-based networks and supports a number of, so called, classes of services. Such solution requires to implement in the network a set of QoS mechanisms and algorithm working on packet, connection request and provisioning levels. Furthermore, we require signaling system for informing the network about new connection request and network resource allocation capabilities for providing required resources to given connection. The IP QoS System is based on the next generation networks (NGN) and differentiated services (DiffServ) architectures and, at least for now, it is designed for single domain only.
Źródło:
Journal of Telecommunications and Information Technology; 2011, 3; 5-11
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-12 z 12

    Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies