Autor: Bugajski, J. - Katalog OPAC zbiorów

Tytuł:: Concentrations of organic and biogenic pollutants in domestic wastewater after mechanical treatment in the aspect of biological reactor design
Autorzy:: Bugajski, P.
Pawełek, J.
Kurek, K.
Powiązania:: https://bibliotekanauki.pl/articles/101123.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:: wastewater
organic pollutants
biogenic pollutants
mechanical treatment
bioreactor design
Opis:: The aim of the study was to determine the value and concentration indicators of BOD5, COD and general nitrogen in domestic wastewater after mechanical treatment, which should be considered in the design of the activated sludge reactor. Ninety-nine samples of raw wastewater and after mechanical treatment were then collected and physicochemical analysis was carried out. The quantity of pollutants in the raw wastewater was verified to determine if this was domestic wastewater. The next stage of the analysis included the definition of the characteristic quantity of the analysed indicators in wastewater after mechanical treatment, which should be taken into account while calibrating computer programs supporting the design of biological reactor chambers. A detailed analysis led to the conclusion that mean values for BOD5 - 300 mgO2·dm-3, for COD - 500 mgO2·dm-3and for total nitrogen 50 mgN·dm-3 should be applied. The work also determined the susceptibility of wastewater after mechanical treatment to the decomposition of organic and biogenic compounds.
Źródło:: Infrastruktura i Ekologia Terenów Wiejskich; 2017, IV/3; 1811-1822
1732-5587
Pojawia się w:: Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Analysis of the sewage system expandability in Mściwojów commune
Autorzy:: Bergel, T.
Bugajski, P.
Pawełek, J.
Powiązania:: https://bibliotekanauki.pl/articles/100285.pdf
Data publikacji:: 2013
Wydawca:: Uniwersytet Rolniczy im. Hugona Kołłątaja w Krakowie
Tematy:: sewage system
expansion
sewage
kanalizacja
rozwój
ścieki
Opis:: The aim of the study is to analyze the hydraulic conditions of the existing sewage system and the sewage treatment plant in the commune of Mściwojów. This is in relation to the aspect of connecting new buildings, as a part of the investments in the pilot project VITAL LANDSCAPES no. 2CE164P3. The analysis led to the conclusion that an increased wastewater inflow from the new buildings is manageable. The current capacity of the sewage treatment plant will be increased by 3 to 5%, which will not affect the stability of the existing treatment process. The hydraulic analysis of the sewer network proved that the existing sewer collectors can handle the increased flow.
Źródło:: Geomatics, Landmanagement and Landscape; 2013, 2; 7-14
2300-1496
Pojawia się w:: Geomatics, Landmanagement and Landscape
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Water supply network expansion in the commune of Mściwojów as relates to the pilot project vital landscapes
Autorzy:: Bergel, T.
Bugajski, P.
Pawełek, J.
Powiązania:: https://bibliotekanauki.pl/articles/100663.pdf
Data publikacji:: 2013
Wydawca:: Uniwersytet Rolniczy im. Hugona Kołłątaja w Krakowie
Tematy:: rural water supply
expansion
concept
zaopatrzenie wsi w wodę
rozwój
koncepcja
Opis:: This article presents the analysis of the water supply system expandability in the commune of Mściwojów. Such necessity of the expansion resulted from the locations of the new investments covered by the pilot program VITAL LANDSCAPES. Hydraulic calculations, covering two possible solutions, have proven that the existing water supply network is sufficient now and will be sufficient in the near future (after expansion), in supplying all the consumers with water.
Źródło:: Geomatics, Landmanagement and Landscape; 2013, 2; 15-24
2300-1496
Pojawia się w:: Geomatics, Landmanagement and Landscape
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Photoreflectance Studies of InGaAs/GaAs/AlGaAs Single Quantum Well Laser Structures
Autorzy:: Ochalski, T. J.
Żuk, J.
Regiński, K.
Bugajski, M.
Powiązania:: https://bibliotekanauki.pl/articles/1992051.pdf
Data publikacji:: 1998-09
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 78.66.Fd
78.20.-e
Opis:: We report on photoreflectance investigations of strained-layer In$\text{}_{0.2}$Ga$\text{}_{0.8}$As/GaAs/Al$\text{}_{0.3}$Ga$\text{}_{0.7}$As single quantum well laser structures grown by molecular beam epitaxy. All the observed photoreflectance spectral features were assigned to the e-hh transitions with Δn=0. The transition energies were determined and compared to their values calculated within the envelope function approximation. Assuming that one third of the total strain in the central In$\text{}_{0.2}$Ga$\text{}_{0.8}$As layer is relaxed by biaxial deformation of surrounding thin GaAs layers, it is possible to explain reasonably the results of our photoreflectance experiment.
Źródło:: Acta Physica Polonica A; 1998, 94, 3; 463-467
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Monte Carlo Studies of Quantum Cascade Lasers
Autorzy:: Borowik, P.
Thobel, J.
Bugajski, M.
Adamowicz, L.
Powiązania:: https://bibliotekanauki.pl/articles/1807675.pdf
Data publikacji:: 2009-12
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 72.10.-d
72.20.Jv
73.63.-b
78.67.-n
Opis:: Results of multi particle Monte Carlo studies of a mid-infrared QCL structure, for the first time fabricated by Page et al., are presented. It has been demonstrated that for the considered structure design at least 9 electron energy levels per laser segment should be used to correctly describe the electric current properties. Mechanisms responsible for electron population on higher laser level are discussed.
Źródło:: Acta Physica Polonica A; 2009, 116, S; S-49-S-51
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: High Resistivity AlGaAs Grown by Low Temperature MBE
Autorzy:: Radomska, D.
Ratajczak, J.
Regiński, K.
Bugajski, M.
Powiązania:: https://bibliotekanauki.pl/articles/1992076.pdf
Data publikacji:: 1998-09
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 73.61.Ey
Opis:: Al$\text{}_{0.3}$Ga$\text{}_{0.7}$As layers were grown by molecular beam epitaxy using substrate temperature 200-300°C, tetrameric As and two values of As/Ga+Al flux ratio i.e. 3 or 8. The post-growth annealing was performed in situ at 600°C for 20 min under As-overpressure. The samples were characterised by reflection high-energy electron diffraction, transmission electron microscope and room-temperature I-V measurements of n$\text{}^{+}$/LT grown layer /n$\text{}^{+}$ resistors. The resistivity and trap-filled limited voltage have been determined. The best layers exhibited ρ of the order of 10$\text{}^{9}$ Ω cm, were monocrystalline, uniformly precipitated and without dislocations.
Źródło:: Acta Physica Polonica A; 1998, 94, 3; 492-496
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Visible Light Emission from Porous Silicon
Autorzy:: Bugajski, M.
Wesołowski, M.
Lewandowski, W.
Ornoch, J.
Kątcki, J.
Powiązania:: https://bibliotekanauki.pl/articles/1924257.pdf
Data publikacji:: 1992-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 78.65.-s
Opis:: The aim of this paper is the study of porous Si prepared by preferential anodic dissolution in concentrated HF acid solutions. Porous silicon layers exhibited extremely efficient luminescence in the 700-900 nm range at room temperature. Basic characteristics of this luminescence strongly suggest the intrinsic origin of the process, directly related to quantum confinement. The additional transmission-electron-microscopy and electron-diffraction studies - were performed to support hypothesis that luminescence originates from silicon nanostructures.
Źródło:: Acta Physica Polonica A; 1992, 82, 5; 914-918
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Resonant Cavity Enhanced Photonic Devices
Autorzy:: Bugajski, M.
Muszalski, J.
Ochalski, T.
Kątcki, J.
Mroziewicz, B.
Powiązania:: https://bibliotekanauki.pl/articles/2030303.pdf
Data publikacji:: 2002-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 78.30.Fs
78.66.Fd
78.55.-m
78.67.De
78.45.+h
78.47.+p
Opis:: In the present paper we review our recent works on technology, basic physics, and applications of one-dimensional photonic structures. We demonstrate spontaneous emission control in In$\text{}_{x}$Ga$\text{}_{1-x}$As/GaAs planar microcavities with distributed Bragg reflectors. In general, observed trends are in agreement with theoretical predictions. We also demonstrate the operation of resonant-cavity light emitting diodes and optically pumped vertical cavity light emitting diodes developed recently at the Department of Physics and Technology of Low-Dimensional Structures of the Institute of Electron Technology.
Źródło:: Acta Physica Polonica A; 2002, 101, 1; 105-118
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Angular and Temperature Tuning of Emission from Vertical-External-Cavity Surface-Emitting Lasers (VECSELs)
Autorzy:: Wójcik-Jedlińska, A.
Muszalski, J.
Bugajski, M.
Łukowski, M.
Powiązania:: https://bibliotekanauki.pl/articles/1812025.pdf
Data publikacji:: 2008-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 42.55.Px
85.35.Be
78.67.De
42.55.Sa
42.55.Xi
Opis:: In this paper we demonstrate how the tuning of the VECSEL heterostructure can be precisely determined. Since the VECSEL active region is embodied in a microcavity, the photoluminescence signal collected from the chip surface is modified by the resonance of this cavity. The angle resolved photoluminescence measurements combined with the temperature tuning of the structure allowed us to precisely determine VECSEL emission features. The investigated structure consists of GaAs cavity with six InGaAs quantum wells and is designed for lasing at 980 nm.
Źródło:: Acta Physica Polonica A; 2008, 114, 5; 1437-1443
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Analysis of Free-Space Optics Development
Autorzy:: Mikołajczyk, J.
Bielecki, Z.
Bugajski, M.
Piotrowski, J.
Wojtas, J.
Gawron, W.
Szabra, D.
Prokopiuk, A.
Powiązania:: https://bibliotekanauki.pl/articles/221245.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: optical communications
open path laser communications
line of sight communications
free space optics
Opis:: The article presents state of work in technology of free-space optical communications (Free Space Optics - FSO). Both commercially available optical data links and their further development are described. The main elements and operation limiting factors of FSO systems have been identified. Additionally, analyses of FSO/RF hybrid systems application are included. The main aspects of LasBITer project related to such hybrid technology for security and defence applications are presented.
Źródło:: Metrology and Measurement Systems; 2017, 24, 4; 653-674
0860-8229
Pojawia się w:: Metrology and Measurement Systems
Dostawca treści:: Biblioteka Nauki

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