Informacja

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

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "Nawrocki, P." wg kryterium: Autor

  Lista filtrów
Wyrównaj
Wyświetlanie 1-15 z 49
Tytuł:
Gospodarka leśna a występowanie zawiesin w wodach rzek i potoków i ich oddziaływanie na ichtiofaunę i ekosystemy rzeczne
Forest management practices and the occurrence of suspended solids in rivers and streams and their influence on ichthyofauna and river ecosystems
Autorzy:
Mikołajczyk, T.
Nawrocki, P.
Powiązania:
https://bibliotekanauki.pl/articles/1292053.pdf
Data publikacji:
2019
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
gospodarka lesna
erozja gleb
oddzialywanie na srodowisko
rzeki
potoki
wody plynace
zanieczyszczenia wod
zawiesina mineralna
ladunek zanieczyszczen
oddzialywanie na zwierzeta
ryby
forest management
soil erosion
rivers
ichthyofauna
gospodarka leśna
erozja gleby
ichtiofauna
Opis:
This article is based on a literature review and attempts to highlight the harmful effects of forest soil erosion on aquatic ecosystems with particular emphasis on ichthyofauna. We focus on the phenomena of excessive soil erosion caused by forest management practices and forest roads, subsequent sediment runoff as well as silting of watercourses and their impact on fish. Among others, the direct influence of the suspended sediments on fish reproduction, egg incubation, respiratory processes, growth and immunity, as well as indirect effects on habitat and migration are discussed. The authors' intention is to draw attention to this important and underestimated aspect of forest management in Poland. The aim of this publication is to bring about changes in the management of commercial forests that will minimize the erosion of forest soils, formation of high levels of suspended solids in rivers and in turn limit their negative impact on aquatic ecosystems.
Źródło:
Leśne Prace Badawcze; 2019, 80, 4
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ausferritic Microstructure Phase Analysis in Ductile Iron
Autorzy:
Trzaskowski, W.
Nawrocki, P.
Łukasik, K.
Myszka, D.
Powiązania:
https://bibliotekanauki.pl/articles/381436.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
image analysis
ausferritic ductile iron
x-ray diffraction
austenite
ferrite
analiza obrazu
żeliwo sferoidalne
dyfrakcja rentgenowska
austenit
ferryt
Opis:
Image analysis allows to acquire a number of valuable quantitative informations on the observed structure and make appropriate conclusions. So far, a large part of analyzed images came only from light microscopes, where it was a possibility of accurately distinguish the different phases on the plane. However, the problem happened in the case of the observation of images obtained by scanning electron microscopy. In this case, the presence of various shades of gray, and the spaciousness of the image attained. To perform the analysis the matrix images of the ausferritic ductile iron were used. Full analysis was carried out using the computer program MicroMeter 1.03. Results obtained in the analysis were related directly to the results from X-ray diffraction. Obtained as a result of the analysis were related directly to the results from X-ray diffractometer. The following technique has weaknesses, including the misinterpretation by the operator microscope or program. After all, it was possible to obtain similar results to the result that has been obtained from X-ray diffractometer.
Źródło:
Archives of Foundry Engineering; 2018, 18, 2; 112-116
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of Pre-heat Treatment on Mechanical Properties of Austempered Ductile Cast Iron
Autorzy:
Nawrocki, P.
Wasiluk, K.
Łukasik, K.
Myszka, D.
Powiązania:
https://bibliotekanauki.pl/articles/380943.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
ausferritic ductile iron
heat treatment
dilatometric studies
JMatPro
CCT and TTT diagrams
żeliwo sferoidalne
obróbka cieplna
badania dylatometryczne
program JMatPro
Opis:
The paper presents the effect of pre-heat treatment on the mechanical properties of ductile cast iron with elevated content of Cu and Mo elements. Austempered Ductile Iron is a material with non-standard properties, combining high tensile strength and abrasion resistance with very good plasticity. In addition, it is prone to strain hardening and have good machining abilities. The study was conducted for five designed heat treatment cycles. The variables were the time and temperature of the pre-heat treatment, followed by one of two standard heat treatments for ADI cast iron. The aim of the authors was fragmentation of the grains of perlite during the initial heat treatment. It is presumed, that subsequent heat treatment will cause further refinement of the microstructure than would be the case without initial heat treatment. Diffusion is much faster than in case of ferritic matrix of cast iron. The results will be used to evaluate material for the production of parts of equipment that must operate under extreme load conditions.
Źródło:
Archives of Foundry Engineering; 2018, 18, 1; 176-180
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effect of Addition of Germanium to the Surface Phenomena in Silver Alloys
Autorzy:
Jesiotr, M.
Trzaskowski, W.
Trochimiak, D.
Nawrocki, P.
Łukasik, K.
Myszka, D.
Powiązania:
https://bibliotekanauki.pl/articles/382325.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
silver
germanium
microstructure
oxide layers
corrosion
srebro
german
mikrostruktura
warstwa tlenku
korozja
Opis:
The article describes the impact of germanium on the course of surface phenomena in casting alloys of silver used in gold smithing. The aim of this works is to describe the assessment of resulting alloys, comparing the area of raw castings and the impact of the addition content of the alloy on the hardness of the samples. The evaluation also was subject to corrosion resistance of giving a comparison of their use in relations to traditional silver alloys.
Źródło:
Archives of Foundry Engineering; 2018, 18, 3; 81-85
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study of Distortion on the Example of the Rings from Ductile Iron and Cast Steel
Autorzy:
Łukasik, K.
Nawrocki, P.
Misiak, J.
Myszka, D.
Powiązania:
https://bibliotekanauki.pl/articles/383018.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
heat treatment
ductile iron
cast steel
micrometric measurement
distortion
obróbka cieplna
żeliwo
staliwo
pomiar mikrometryczny
odkształcanie
Opis:
The paper attempts to analyze distortions of cast iron and cast steel rings, after heat treatment cycles. The factors influencing distortion are: chemical composition of material, sample geometry, manufacturing process, hardenability, temperature and heat treatment method. Standard distortion tests are performed on C-ring samples. We selected a ring-model, which approximate the actual part, so that findings apply to gear rings. Because distortion depends on so many variables, this study followed strictly defined procedures. The research was started by specifying the appropriate geometry of the samples. Then, the heat treatment was conducted and samples were measured again. The obtained results allow to determine the value of the resulting distortion and their admissibility. The research will be used to evaluate the possibility of using the material to produce parts of equipment operated under extreme load conditions.
Źródło:
Archives of Foundry Engineering; 2017, 17, 4; 97-102
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The assessment of the influence of mechanical cooling on the increase in silicone photovoltaic cells efficiency
Ocena wpływu mechanicznego chłodzenia na wzrost wydajności krzemowych ogniw PV
Autorzy:
Klonowski, M.
Zbytek, Z.
Żurowski, K.
Nawrocki, P.
Powiązania:
https://bibliotekanauki.pl/articles/335191.pdf
Data publikacji:
2017
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Maszyn Rolniczych
Tematy:
photovoltaics
efficiency
temperature power coefficient
silicone PV cells
fotowoltaika
sprawność
współczynnik temperaturowy mocy
krzemowe ogniwa PV
Opis:
The aim of the paper was to show how cooling of silicone photovoltaic cells influences the amount of electrical energy they produce. The research was conducted both in the laboratory and under real outdoor conditions. Current-voltage characteristics for two different thermal states of PV cells were outlined. Obtained power values for a PV cell working under the influence of refrigerant and without such an influence were compared. As a result of mechanical cooling of PV cells, an increase in photovoltaic cell efficiency was proved.
Celem pracy było wykazanie, w jaki sposób chłodzenie krzemowych ogniw PV wpływa na ilość produkowanej przez nie energii elektrycznej. Badania przeprowadzono w warunkach laboratoryjnych i rzeczywistych. Opracowano charakterystyki prądowo-napięciowe dla różnych stanów termicznych ogniw PV. Porównano wartości pozyskiwanych mocy panelu fotowoltaicznego pracującego bez chłodzenia i z chłodzeniem. Wykazano wzrost wydajności, panelu fotowoltaicznego w wyniku mechanicznego chłodzenia ogniw PV.
Źródło:
Journal of Research and Applications in Agricultural Engineering; 2017, 62, 2; 59-63
1642-686X
2719-423X
Pojawia się w:
Journal of Research and Applications in Agricultural Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Notification methods in wireless systems
Autorzy:
Nawrocki, P.
Jakubowski, M.
Godzik, T.
Powiązania:
https://bibliotekanauki.pl/articles/305806.pdf
Data publikacji:
2016
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
notification methods
wireless systems
energy consumption
Opis:
Recently, there has been an increasing need for secure, efficient, and simple notification methods for wireless systems. Such systems are meant to provide users with precise tools best suited for work or leisure environments, and a lot of effort has been put into creating a multitude of applications. At the same time, however, not much research has been made into determining which of the available protocols are best suited for each individual task. A number of basic notification methods are presented here, and tests have been performed for the most-promising ones. An attempt has been made to determine which of the methods have the best throughput, latency, security, and other characteristics. A comprehensive comparison is provided, which can be used to select the right method for each individual project. Finally, conclusions are provided, and the results from all of the tests conducted are discussed.
Źródło:
Computer Science; 2016, 17 (4); 519-539
1508-2806
2300-7036
Pojawia się w:
Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Quality of experience in the context of mobile applications
Autorzy:
Nawrocki, P.
Śliwa, A.
Powiązania:
https://bibliotekanauki.pl/articles/305633.pdf
Data publikacji:
2016
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
quality of experience (QoE)
mobile application
mobile device
Android system
quality of service (QoS)
Opis:
Mobile devices are among the most-popular means of browsing the Internet, sending and receiving e-mail, and sharing content on social networks. People use mobile devices and the applications installed on them in different situations throughout the day. In order to ensure that users are satisfied with a mobile application, its author has to ensure a high Quality of Experience level. The problem of automatic evaluation of the QoE parameter is a very interesting research area. Quality of Experience is a broad issue and requires the analysis of many aspects not only graphical user interfaces but also, inter alia, Quality of Service and user ratings.
Źródło:
Computer Science; 2016, 17 (3); 371-385
1508-2806
2300-7036
Pojawia się w:
Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Statistical Assessment of the Impact of Elevated Contents of Cu and Ni on the Properties of Austempered Ductile Iron
Autorzy:
Nawrocki, P.
Kochański, A.
Myszka, D.
Powiązania:
https://bibliotekanauki.pl/articles/352744.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
austempered ductile iron
statistical analysis
analysis of variance (ANOVA)
Grubbs Test
Statistica
Opis:
The article presents a statistical analysis of data collected from the observation of the production of austempered ductile iron. The impact assessment of the chemical composition, i.e. high contents of Cu and Ni on the properties of ductile iron isothermal tempered is critical to find the right chemical composition of austempered ductile iron. Based on the analyses range of the percentage of Cu and Ni which were selected in the cast iron to obtain material with high strength properties.
Źródło:
Archives of Metallurgy and Materials; 2016, 61, 4; 2147-2150
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of grain speed in a seed pickling machine, depending on the presence of scraper element
Wyznaczenie prędkości obwodowej ziarna w komorze mieszania w zależności od występowania elementów rozgarniających
Autorzy:
Zbytek, Z.
Dudziak, B.
Bręczewski, J.
Nawrocki, P.
Gościański, M.
Powiązania:
https://bibliotekanauki.pl/articles/335566.pdf
Data publikacji:
2015
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Maszyn Rolniczych
Tematy:
seed
seed pickling machine
scraper elements
high speed camera
seed flow
ziarno
zaprawianie
komora zaprawiająca
element rozgarniający
kamera
szybkie zdjęcia
przepływ ziarna
Opis:
The method of determination of grain speed in a seed pickling machine depending on the presence of scraper elements have been described in the paper. Results of high speed video analysis have been presented. Grain speed changes as a function of current frequency powering the seed pickling machine engine have been presented. The influence of scraper element inside the working chamber on thegrain flow and its speed have been examined as well.
W artykule przedstawiono metodę oraz sposób pomiaru prędkości obwodowej ziarna w komorze mieszania zaprawiarki w zależności od występowania elementów rozgarniających. Zaprezentowano wyniki pomiarów prędkości obwodowej ziarna z użyciem kamery do szybkich zdjęć. Określono zmiany prędkości obwodowej ziarna w funkcji zmiany częstotliwości prądu zasilającego silnik elektryczny zaprawiarki. Zbadano wpływy obecności elementów rozgarniających wewnątrz komory roboczej zaprawiarki na prędkość obwodową i sposób ruchu ziarna wewnątrz komory roboczej.
Źródło:
Journal of Research and Applications in Agricultural Engineering; 2015, 60, 2; 80-84
1642-686X
2719-423X
Pojawia się w:
Journal of Research and Applications in Agricultural Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Distributed web service repository
Autorzy:
Nawrocki, P.
Mamla, A.
Powiązania:
https://bibliotekanauki.pl/articles/305281.pdf
Data publikacji:
2015
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
web service
repository
heterogeneity
data replication
node balancing
Opis:
The increasing availability and popularity of computer systems has resulted in a demand for new language- and platform-independent ways of data exchange. This demand has, in turn, led to significant growth in the importance of systems based on Web services. Alongside the growing number of systems accessible via Web services came the need for specialized data repositories that could offer effective means of searching the available services. The development of mobile systems and wireless data transmission technologies has allowed us to use distributed devices and computer systems on a greater scale. The accelerating growth of distributed systems might be a good reason to consider the development of distributed Web service repositories with built-in mechanisms for data migration and synchronization.
Źródło:
Computer Science; 2015, 16 (1); 55-73
1508-2806
2300-7036
Pojawia się w:
Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Network management services based on the OpenFlow environment
Autorzy:
Wilk, P.
Nawrocki, P.
Powiązania:
https://bibliotekanauki.pl/articles/305527.pdf
Data publikacji:
2014
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
OpenFlow
software-defined networks (SDN)
management services
load balancing
Opis:
The subject of this article is network management through web service calls, which allows software applications to exert an influence on network traffic. In this manner, software can make independent decisions concerning the direction of requests so that they can be served as soon as possible. This is important because only proper cooperation including all architecture layers can ensure the best performance, especially when software that largely depends on computer networks and utilizes them heavily is involved. To demonstrate that the approach described above is feasible and can be useful at the same time, this article presents a switch-level load balancer developed using OpenFlow. Client software communicates with the balancer through REST web service calls, which are used to provide information on current machine load and its ability to serve incoming requests. The result is a cheap, highly customizable and extremely fast load balancer with considerable potential for further development.
Źródło:
Computer Science; 2014, 15 (3); 253-270
1508-2806
2300-7036
Pojawia się w:
Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Public cloud computing for software as a service platforms
Autorzy:
Soboń, M.
Nawrocki, P.
Powiązania:
https://bibliotekanauki.pl/articles/305646.pdf
Data publikacji:
2014
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
cloud
service
service-oriented architecture
service level agreement
SaaS
Opis:
As cloud computing becomes increasingly popular among enterprises, organizations, and developers, it is time to consider how Software as a Service solutions can be built rapidly and cost-effectively. This paper presents the possibility of using a service-based architecture operating within the framework of the public cloud computing model and implementing Software as a Service. It also describes the architecture, implementation, and testing of sample applications. The conclusions drawn, with respect to related work and the results obtained, shed more light on the application of public cloud systems for Software as a Service purposes
Źródło:
Computer Science; 2014, 15 (1); 89-103
1508-2806
2300-7036
Pojawia się w:
Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Type I CdSe and CdMgSe Quantum Wells
Autorzy:
Rudniewski, R.
Rousset, J.
Janik, E.
Kossacki, P.
Golnik, A.
Nawrocki, M.
Pacuski, W.
Powiązania:
https://bibliotekanauki.pl/articles/1376087.pdf
Data publikacji:
2014-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
78.20.-e
81.05.Dz
81.07.-b
Opis:
In this work we present the band gap engineering, epitaxial growth and optical characterization of CdSe/$Cd_{0.9}Mg_{0.1}Se$ and $Cd_{0.9}Mg_{0.1}Se$/$Cd_{0.85}Mg_{0.15}Se$ quantum wells with a thickness ranging from 1 to 15 nm. These structures exhibit strong near-band-gap photoluminescence from helium up to room temperature. The emission energy is tuned in the range from 1.74 to 2.1 eV at 7 K, depending on the thickness and well composition. The most intense photoluminescence (both at 7 and 300 K) was observed for 10 nm thick CdSe/$Cd_{0.9}Mg_{0.1}Se$ wells. Such a structure gives also a sharp emission line (FWHM = 20 meV) at low temperature. The presented quantum wells are well suited for being embedded in lattice matched ZnTe based microcavities.
Źródło:
Acta Physica Polonica A; 2014, 126, 5; 1167-1170
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Use of methods of cartographic representation and econometrics for defining the correlation between real estate prices and a distance to a city centre
Autorzy:
Bitner, A.
Nawrocki, P.
Litwin, U.
Powiązania:
https://bibliotekanauki.pl/articles/100494.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Rolniczy im. Hugona Kołłątaja w Krakowie
Tematy:
undeveloped land property
correlation “price – distance to a city centre”
cartographic representation
methods of econometrics
ekonometria
metody ekonometryczne
kartografia
Opis:
The article presents using methods of cartographic representation and econometrics and statistical description to defining the correlation between unit prices of an undeveloped land property and a distance to a city centre. Sold undeveloped land located within administrative boundaries of the city of Jasło have been the subject of the study.
Źródło:
Geomatics, Landmanagement and Landscape; 2014, 4; 13-23
2300-1496
Pojawia się w:
Geomatics, Landmanagement and Landscape
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 49

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