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Tytuł:
Integrated IT systems in logistics company management
Zintegrowane systemy informatyczne w zarządzaniu przedsiębiorstwem logistycznym
Autorzy:
Rokicki, T.
Ziolkowska, P.
Powiązania:
https://bibliotekanauki.pl/articles/2053057.pdf
Data publikacji:
2020
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
IT solutions
logistics
MRP
ER
Opis:
The paper presents issues related to integrated IT systems, which are used in the management of many enterprises, including those dealing with logistics. The source of materials was a literature review. The study is a review. The evolution of the approach from MRP systems to integrated MRP II and from ERP to ERP II respectively is shown. The systems cooperating with ERP, such as CRM, SCM and WMS are also presented. Finally, important aspects related to the implementation of integrated ERP class IT systems are presented.
Źródło:
Zeszyty Naukowe Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie. Ekonomika i Organizacja Logistyki; 2020, 5[1]; 55-64
2450-8055
Pojawia się w:
Zeszyty Naukowe Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie. Ekonomika i Organizacja Logistyki
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Role of Arsenic Antisite Defect in Nonstoichiometric Gallium Arsenide
Autorzy:
Jasiński, J.
Kurpiewski, A.
Korοna, K.
Kamińska, M.
Ρalczewska, M.
Krotkus, A.
Marcinkievicius, S.
Liliental-Weber, Z.
Tan, H. H.
Jagadish, C.
Powiązania:
https://bibliotekanauki.pl/articles/1933772.pdf
Data publikacji:
1995-10
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
78.30.Er
73.90.+f
Opis:
Over the last few years there have been many studies of GaAs layers grown at low temperatures (180-300°C), so called LT GaAs. The interest in LT GaAs was motivated by the potential application of 600oC annealed LT GaAs in microwave and fast optoelectronic devices because of its short photocarrier lifetime, reasonable mobility and high resistivity. These properties are associated with the nonstoichiometry of LT GaAs. Recently, studies of comparable material, nonstoichiometric GaAs produced by arsenic ion implantation have been initiated. There is still a strong controversy as to whether the arsenic antisite (As$\text{}_{Ga}$) or arsenic precipitates are responsible for unique electrical properties of both materials. This paper presents the results of structural and electrical studies of high energy As implanted GaAs and comments on relationships between the structure and the resulting electrical properties.
Źródło:
Acta Physica Polonica A; 1995, 88, 4; 747-750
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Free-Electron Analysis of Optical Properties of Thermally Evaporated Gold Films
Autorzy:
El-Kadry, N.
Powiązania:
https://bibliotekanauki.pl/articles/1931626.pdf
Data publikacji:
1994-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
78.30.Er
78.66.Bz
Opis:
Gold films of thicknesses 150-300 Å were deposited on quartz substrata using vacuum evaporation technique. Spectrophotometric measurements of transmission T and reflection R at normal incidence were performed in the range 0.4-3.0 µm. The real and imaginary parts of the complex refractive index ñ were determined using a developer algorithm bashed on Murmann's exact equations. The accuracy in the determined n and k was found to be ±6.0% and ±1.6%, respectively. The dispersion curve of n slowed an anomalous dispersion in the visible region characterized by a peak at λ = 0.840 µm. The dielectric constants were calculated and presented. The Drude model parameters ω$\text{}_{p}$ and ω$\text{}_{τ}$ and d.c. conductivity were determined and compared. The results showed that such parameters could be obtained from free-electron analysis for the near IR experimental results and the intraband transition contributes significantly to the dielectric functions.
Źródło:
Acta Physica Polonica A; 1994, 86, 3; 375-383
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Direct Test of T and CPT Symmetries with Entangled Neutral Mesons
Autorzy:
Di Domenico, A.
Powiązania:
https://bibliotekanauki.pl/articles/1402643.pdf
Data publikacji:
2015-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
13.25.Es
11.30.Er
Opis:
In this paper a method to perform direct T and CPT symmetry tests is briefly discussed, exploiting the Einstein-Podolsky-Rosen correlations of neutral kaon pairs produced at a ϕ-factory. The KLOE-2 experiment at DAΦNE, the Frascati ϕ-factory, could make statistically significant tests of this type.
Źródło:
Acta Physica Polonica A; 2015, 127, 5; 1563-1564
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Electrical and Optical Properties of Highly Non-stoichiometric GaAs
Autorzy:
Kurpiewski, A.
Korona, K.
Kamińska, M.
Palczewska, M.
Jagadish, C.
Williams, J.
Powiązania:
https://bibliotekanauki.pl/articles/1876991.pdf
Data publikacji:
1995-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
73.90.+f
78.30.Er
Opis:
The studies of transport and optical properties of GaAs implanted with high arsenic doses were performed. As-implanted samples showed hopping conductivity and the exponential absorption tail in the near-IR region. Both effects were probably caused by the amorphization of implanted layer. Using EPR measurements it was found that arsenic antisite defect with high local strain field was created during implantation. Annealing of implanted layers at 600°C led to substantial removal of amorphization, decrease in absorption coefficient and hopping conductivity leading to resistive samples. The possible model of such behaviour may be similar to the one of suggested for low temperature GaAs layers.
Źródło:
Acta Physica Polonica A; 1995, 87, 2; 518-522
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza stylistycznych kwalifikatorów ukraińskich i polskich frazeologizmów z nazwami potraw
Analysis of Stylistic Qualifiers in Ukrainian and Polish Phraseology With Food Names
Autorzy:
Samadowa, Aleksandra
Powiązania:
https://bibliotekanauki.pl/articles/1790550.pdf
Data publikacji:
2016-02-02
Wydawca:
Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
Tematy:
idiom
stylistic qualifi er
food
phraseology
Opis:
Food, as one of the most important human activities, also has a huge impact on the sphere of culture and language. The daily preparation of meals can become a typical rite, for example, for a nation, but it is also a source of idiom formation. The article presents a comparative analysis of stylistic qualifiers which are used to designate idioms containing components associated with food in Ukrainian and Polish phraseology.
Źródło:
Studia Ucrainica Varsoviensia; 2016, 4; 333-338
2299-7237
Pojawia się w:
Studia Ucrainica Varsoviensia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Studying of Nickel Alloys with 1 at.% of Ge, Zn, In, Zr and Pb by Positron Annihilation Methods
Autorzy:
Baranowski, A.
Kostrzewa, M.
Szuszkiewicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/2024150.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
78.70.Bj
78.30.Er
Opis:
The measurements of cold rolled nickel alloys with 1 at.% of Ge, Zn, In, Zr, Pb and additionally Ti and Sb by positron lifetime and Doppler broadening techniques have been done. Monovacancies were a dominating type of defects in the alloys. The authors of the present paper connect the differences between the annihilation parameters of the investigated samples with the existence of the vacancy-impurity atom pairs. A direct proportionality between the vacancy lifetime and the product of vacancy-impurity binding energy and atomic radius of impurity atom has been found.
Źródło:
Acta Physica Polonica A; 2001, 99, 3-4; 329-336
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Positron Annihilation with Electrons of Admixture Atoms in Some Binary Nickel Alloys
Autorzy:
Baranowski, A.
Kostrzewa, M.
Szuszkiewicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/2042168.pdf
Data publikacji:
2005-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
78.70.Bj
78.30.Er
Opis:
Weighted difference curves have been shortly presented as a proper tool allowing to analyze in another way two-detector Doppler spectra regarding positron annihilation with admixture electrons in some nickel alloys. The analysis of low and middle momentum parts of Doppler spectra for investigated alloys reflects the annihilation of positrons with admixture electrons. There is no distinct signal of annihilations with admixture electrons from the positron lifetime data for well-annealed samples.
Źródło:
Acta Physica Polonica A; 2005, 107, 4; 570-575
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Electrorheological fluids containing polyelectrolytes
Ciecze elektroreologiczne zawierające polielektrolity
Autorzy:
Krztoń-Maziopa, A.
Sukiennik, M.
Bańkowski, A.
Płocharski, J.
Powiązania:
https://bibliotekanauki.pl/articles/256156.pdf
Data publikacji:
2008
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Technologii Eksploatacji - Państwowy Instytut Badawczy
Tematy:
efekt elektroreologiczny
granica płynięcia
ciecz ER
zawiesina elektroreologiczna
electrorheological effect
yield stress
ER fluid
electrorheological suspension
Opis:
Electrorheological (ER) fluids belong to the broadly studied class of so called "intelligent materials" whose properties are sensitive to external stimuli. The ER fluids increase their viscosity upon application of an electric field. This paper reports the results of electrorheological experiments and describes a synthetic procedure leading to an ER suspension exhibiting predetermined characteristics. The fluid was designed for application in a prototype ER clutch.
Ciecze elektroreologiczne (ER) należą do intensywnie badanej grupy tak zwanych inteligentnych materiałów, których właściwości można modyfikować za pomocą czynników zewnętrznych. Cechą charakterystyczną cieczy ER jest gwałtowny i odwracalny wzrost lepkości pod wpływem przyłożonego pola elektrycznego. Niniejsza praca zawiera wyniki eksperymentów elektroreologicznych i opis syntezy prowadzącej do otrzymania zawiesiny elektroreologicznej spełniającej określone parametry użytkowe. Ciecz została sporządzona w celu zastosowania w prototypowym sprzęgle elektroreologicznym.
Źródło:
Problemy Eksploatacji; 2008, 1; 87-99
1232-9312
Pojawia się w:
Problemy Eksploatacji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Informacje dla Autorów
Information for Contributors
Autorzy:
Er(r)go, Redakcja
Powiązania:
https://bibliotekanauki.pl/articles/467771.pdf
Data publikacji:
2018
Wydawca:
Wydawnictwo Uniwersytetu Śląskiego
Tematy:
Information for contributors
Er(r)go stylesheet
Opis:
Information concerning submission procedures and the stylesheet for prospective Authors. 
Źródło:
ER(R)GO: Teoria – Literatura – Kultura; 2018, 36
1508-6305
2544-3186
Pojawia się w:
ER(R)GO: Teoria – Literatura – Kultura
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Breast cancer and factors affecting survival rate. Narrative review article
Autorzy:
Elzohry, Alaa Ali M.
Fikry, Engy Mohamed
Elhamed, Mohammed Farghaly Abd
Powiązania:
https://bibliotekanauki.pl/articles/1065175.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Breast cancer
Estrogen receptor ER
Progesterone receptor (PR)
Opis:
Breast cancer is the most common malignancy in women and it was estimated as the fifth cause of death from malignancy in the world. The objective of this review is to illustrate the incidence of cancer breast and demonstrate different factors affecting survival rate.
Źródło:
World Scientific News; 2019, 120, 2; 275-281
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Luminescence of hydrothermally fabricated PbF2:Er3+ particles and their application in bifacial silicon solar cells
Autorzy:
Yang, F
Wu, C.
Hao, X
Chen, Y.
Lu, J.
Yang, Sh.
Powiązania:
https://bibliotekanauki.pl/articles/174503.pdf
Data publikacji:
2014
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
PbF2
Er3+ particles
hydrothermal method
upconversion
Opis:
We report the synthesis of PbF2:Er3+ particles using a hydrothermal method. The structure and upconversion emission properties of the products are investigated by scanning electron microscopy, X-ray diffractometer, Raman spectrophotometer and fluorescence spectrometry. An increase in Er3+ concentration in the crystals changes the PbF2 structure from a mixed phase to a cubic phase and decreases the grain size to nanoscale levels. Enhanced upconversion efficiency is achieved after annealing resulted from the formation of the cubic phase and the increase of grain size. The optimal Er3+ concentration is found to be 4% after annealing, and applied to the back of a bifacial silicon solar cell, maximum external quantum efficiencies of 0.38% and 0.79% are respectively obtained under 0.77 W/cm2 laser excitation (1560 nm) and AM1.5 + laser co-excitation.
Źródło:
Optica Applicata; 2014, 44, 3; 463-473
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesized and characterization of pure and Er+3 doped ZnO nanoparticles by using laser ablation in ethanol
Autorzy:
Ismail, Raid A.
Habubi, Nadir F.
Powiązania:
https://bibliotekanauki.pl/articles/1191374.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
AFM
Er doping
Heterojunction
XRD
Zinc Oxide
nanocollidal suspension
Opis:
Pulsed laser ablation in ethanol at room temperature with laser fluence 4.62 J/cm2 was employed to synthesize pure zinc oxide (ZnO) and Er- doped ZnO nanocolloidal suspension. The structural properties were determined by using x-ray diffraction (XRD) method and was confirmed its hexagonal wurtzite structure. The photoluminescence spectra (PL), AFM and FTIR measurement of the synthesized pure and Er-doped ZnO is carried out. The photoluminescence spectra measurements show that all the samples have ultraviolet emission and green emission and the surface granular morphology. The FTIR spectra indicate the existence of Zn-O, Er-O-Er and Er-O stretching modes. Al/ZnO/P-Si/Al and Al/Er-ZnO/P-Si/Al photodetectors hetrojunction has two peaks of response located at 650 nm for and 790 nm and the first peak shifted to 550nm for the doped hetrojunction with max sensitivity 0.7A/W. The maximum specific detectivity is 4.3×1012 W-1•cm•Hz-1 and 3×1012 W-1 •cm•Hz-1 for undoped and doped hetrojunctions respectively. The values of the built-in potentials 0.9 volt for Al/ZnO/P-Si/Al heterojunction and 0.6 volt for Al/Er-ZnO/P-Si/Al hetrojunction.
Źródło:
World Scientific News; 2016, 33; 67-78
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Compressibility of $AgI-Ag_{2}MoO_{4}$ System Measured in Wide Range of Composition
Autorzy:
Wiśniewski, Z.
Wiśniewski, R.
Wilczyńska, T.
Powiązania:
https://bibliotekanauki.pl/articles/1538417.pdf
Data publikacji:
2010-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.43.Er
61.66.Dk
62.50.-p
Opis:
Results of compressibility measurements of $AgI-Ag_{2}MoO_{4}$ materials for different concentrations of AgI were presented. The obtained results were compared with phase diagram and internal structure of material. It was found that observed values of compressibility coefficient can be related to internal structure of investigated material.
Źródło:
Acta Physica Polonica A; 2010, 117, 4; 601-602
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Lifetime Broadening of a Nuclear Magnetic Resonance Peak under Minimal Length Uncertainty Analysis
Autorzy:
Farmany, A.
Powiązania:
https://bibliotekanauki.pl/articles/1538633.pdf
Data publikacji:
2010-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
11.30.Er
11.25.Sq
11.15.-q
Opis:
We calculate the lifetime broadening of a nuclear magnetic resonance peak based on the minimal length uncertainty. The application of high resolution nuclear magnetic resonance spectroscopy and its extension to detection of the signature of minimal length scale is explored. We show that in a high precision spectrometry test, the lifetime broadening is a quadratic function with energy.
Źródło:
Acta Physica Polonica A; 2010, 117, 3; 454-456
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Temperature Dependence of the Electron Raman Light Scattering in Normal Metals and Superconductors
Autorzy:
Falkovsky, L.
Klama, S.
Powiązania:
https://bibliotekanauki.pl/articles/1930519.pdf
Data publikacji:
1994-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
74.20.Fg
74.20.-z
78.30.Er
Opis:
Within the anisotropic BCS model the temperature dependence of the electron Raman light scattering in normal metals and superconductors is investigated. In either case analytical expressions describing the intensity of scattered light as a function of the Raman frequency and temperature are derived.
Źródło:
Acta Physica Polonica A; 1994, 85, 2; 311-315
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
High-Frequency Susceptibilities of Inhomogeneous Magnetoelastic Medium
Autorzy:
Ignatchenko, V. A.
Erementchouk, M. V.
Powiązania:
https://bibliotekanauki.pl/articles/1964778.pdf
Data publikacji:
1997-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
62.30.+d
75.80.+q
61.43.Er
Opis:
A response of an inhomogeneous magnetoelastic medium with the zero-mean magnetostriction to high-frequency elastic and electromagnetic fields is studied. It is shown that diagonal susceptibilities have the resonance anomalies in the vicinity of the frequency of the magnetoelastic resonance, while the coefficients of crossing excitations are equal to zero.
Źródło:
Acta Physica Polonica A; 1997, 92, 2; 415-418
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
summaries in english/streszczenia w języku angielskim
Summaries in English/Streszczenia w języku angielskim
Autorzy:
Er(r)go, Redakcja w
Powiązania:
https://bibliotekanauki.pl/articles/467864.pdf
Data publikacji:
2018
Wydawca:
Wydawnictwo Uniwersytetu Śląskiego
Tematy:
streszczenia
summaries
Er(r)go No. 37
abstracts
English
Opis:
English-language abstracts of the feature texts of the present issue.
Źródło:
ER(R)GO: Teoria – Literatura – Kultura; 2018, 37
1508-6305
2544-3186
Pojawia się w:
ER(R)GO: Teoria – Literatura – Kultura
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
summaries in english/streszczenia w języku angielskim
Autorzy:
Er(r)go, Redakcja w
Powiązania:
https://bibliotekanauki.pl/articles/466944.pdf
Data publikacji:
2018
Wydawca:
Wydawnictwo Uniwersytetu Śląskiego
Tematy:
streszczenia
summaries
Er(r)go No. 36
summaries in English
Opis:
English summaries of the feature texts of the issue.
Źródło:
ER(R)GO: Teoria – Literatura – Kultura; 2018, 36
1508-6305
2544-3186
Pojawia się w:
ER(R)GO: Teoria – Literatura – Kultura
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study of the Bacteriological Quality of a Continental Wetland – Case of the Dayet Er Roumi Lake (Khemisset, Morocco)
Autorzy:
Sadki, Mohcine
Chahlaoui, Abdelkader
Saidi, Abdelhak
Belkhiri, Abdelkhalek
Bengoumi, Driss
Powiązania:
https://bibliotekanauki.pl/articles/2202344.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
Dayet Er Roumi
wetland
fecal contamination index
bacteriology
Khemisset
Morocco
Opis:
The Dayet Er Roumi lake located in the biogeographic zone of the central meseta belonging to the province of Khemisset, constitutes the only permanent natural lake of low altitude in Morocco. The lake’s water body is the essence of the existence of this natural and environmental space. The objective of the present study was on the one hand to evaluate the current state of the bacteriological quality of the waters lake Dayet Er Roumi, and on the other hand to define the risks of the pollution waters lake, and its origin. In order to carry out this work well, the evolution of the bacteriological parameters of the waters lake during the period from October 2020 until September 2021 was studied at the level of four stations of sampling. The obtained results showed that the waters of Dayet Er Roumi are confronted with a strong pressure generated by the discharges of domestic waters of the neighbouring agglomerations and also by activities of natural, agricultural and tourist origin. Indeed, the bacterial load is expressed by a high load of bacteria indicative of fecal contamination which varies between 50 and 346∙103 CFU/1 ml for total aerobic mesophilic flora (TAMF) at 22 °C, 6 and 72∙103 CFU/1 ml for TAMF at 37 °C, 15 and 62∙103 CFU/100 ml for total coliforms (TC), 0 and 4350 CFU/100 ml for faecal coliforms, 0 and 16 350 CFU/100 ml for faecal streptococci, 1 and 13∙103 CFU/20 ml for sulphite-reducing anaerobes, 38 and 22 680 CFU/100 ml for Staphylococcus aureus and between 160 and 33 600 CFU/100 ml for Pseudomonas aeruginosa. These results largely exceed the Moroccan standards for the water intended for irrigation. They could be the cause of possible contamination of irrigated crops as well as groundwater in the region, and consequently have repercussions on human health.
Źródło:
Journal of Ecological Engineering; 2023, 24, 1; 205--217
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis of citrates of selected lanthanides (Er, Ho and Lu)
Autorzy:
Janusz, Władysław
Pikus, Stanisław
Skwarek, Ewa
Olszewska, Elżbieta
Powiązania:
https://bibliotekanauki.pl/articles/1450220.pdf
Data publikacji:
2020
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
PXRD diffraction
Powder X-Ray Diffraction
FTIR
Fourier Transform Infrared
Er
Erbium
Ho
Holmium
Lu
Lutetium
citrates of Er
citrates of Ho
citrates of Lu
Opis:
Holmium, erbium and lutetium citrates can be synthesized by transforming freshly precipitated holmium, erbium and lutetium hydroxides in the citric acid solution under the hydrothermal conditions (above 100 ℃) after 3 days of reaction. In this paper in order to determine the synthesis conditions, the hydroxide and citrate stability areas of selected lanthanides were compared. The studies of the structure of the obtained holmium citrate, erbium and lutetium samples showed that these compounds crystallize in a monoclinic system. The crystallite sizes determined by the HalderWagner method were 67.8 ± 8.0nm, 103.7 ± 4.5nm and 68.1 ± 4.2nm, respectively for the holmium citrate, erbium citrate and lutetium citrate samples. The shifts of the hydroxyl and carboxyl groups of citric acid in the FTIR spectrum indicate the interactions of both groups with holmium, erbium and lutetium cations. Then the obtained samples were subjected to the analysis of composition, and their particle size distribution was determined.
Źródło:
Physicochemical Problems of Mineral Processing; 2020, 56, 6; 225-234
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Preparation and Up-conversion Luminescence of Yb3+/Er3+/GZO Ceramics
Autorzy:
Li, G.
Wang, B.
Wang, R.
Liu, H.
Powiązania:
https://bibliotekanauki.pl/articles/779137.pdf
Data publikacji:
2018
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
Up-conversion
Yb3+/Er3+/GZO
Ceramics
High purity
Luminescence
Opis:
Yb3+/Er3+/GZO ceramics have been synthesized with high temperature solid-state method. The phase and structure of the Yb3+/Er3+/GZO ceramics were characterized by X-ray diffraction (XRD). The XRD pattern that following ions Yb3+, Er3+ and Ga3+ were well doped into the ZnO lattice. Effi cient visible up-conversion (UC) red and green emission were observed under 980 nm excitation. The mechanism of the UC luminescence is investigated on the basis of the UC luminescence emission spectra, the power curve and energy level diagram. The infl uence of doping ions to the intensity ratio of red to green is analyzed and high purity of red light (red/green = 29.9) is fi nally obtained.
Źródło:
Polish Journal of Chemical Technology; 2018, 20, 3; 15-19
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Cu²⁺ Ion Irradiation on Microstructure of Er₂O₃ Coating Layer Formed by MOCVD Method
Autorzy:
Tanaka, M.
Takezawa, M.
Hishinuma, Y.
Tanaka, T.
Muroga, T.
Ikeno, S.
Lee, S.
Matsuda, K.
Powiązania:
https://bibliotekanauki.pl/articles/1032912.pdf
Data publikacji:
2017-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
nuclear fusion
coating
Er2O3
thin film
TEM
SEM and XRD
Opis:
Erbium oxide (Er₂O₃) coating is one of the promising methods to restrict tritium permeation and the magneto hydrodynamic pressure drop for advanced breeding blanket systems. Er₂O₃ coating layer on large interior surface area of metal pipe is deposited by using metal organic chemical vapor deposition process. In this work, the influence of Cu²⁺ ion irradiation on microstructure of Er₂O₃ coating layer on stainless steel 316 (SUS 316) substrate by metal organic chemical vapor deposition methods was investigated using scanning electron microscopy, transmission electron microscopy observation and X-ray diffraction analysis. Microstructure observation of Er₂O₃ coating was carried out after 0.00-1.50 dpa Cu²⁺ ion irradiation at 298 K and 773 K. Scanning electron microscopy observation of the surface area on Er₂O₃ thin film revealed the crack generation on surface after Cu²⁺ ion irradiation. X-ray diffraction peaks were identified in Er₂O₃ after Cu²⁺ ion irradiation transmission electron microscopy observations, the formation of interlayer between Er₂O₃ coating and SUS substrate was confirmed. According to transmission electron microscopy-energy dispersive spectroscopy, the interlayer includes Fe and Cr.
Źródło:
Acta Physica Polonica A; 2017, 131, 5; 1351-1352
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Consumers, Play and Communitas-an Anthropological View on Building Consumer Involvement on a Mass Scale
Autorzy:
Karpińska-Krakowiak, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/1811416.pdf
Data publikacji:
2014-09-30
Wydawca:
Polskie Towarzystwo Socjologiczne
Tematy:
Communitas
consumer involvement
Heineken Open’er Festival
marketing events
play
the Fun Theory
Opis:
There is an increasing interest in effective methods for building consumer involvement on a mass scale. This paper offers an interdisciplinary theoretical framework for consumer involvement analysis and forwards an anthropological approach to this issue. It uses categories of play and communitas to examine cultural dynamics underlying consumer involvement. It summarizes and extends theoretical understanding of the topic and provides numerous examples from contemporary marketplace such as Heineken Open’er Festival and Volkswagen ‘Fun Theory’ initiative. Several research propositions are formulated for future empirical endeavors and implications for practice are defined.
Źródło:
Polish Sociological Review; 2014, 187, 3; 517-332
1231-1413
2657-4276
Pojawia się w:
Polish Sociological Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ czasu trwania impulsu lasera ER:YAG na ablację werniksów
Influence of ER:YAG laser pulse duration on varnish ablation
Autorzy:
Ostrowski, R.
Marczak, J.
Rycyk, A.
Powiązania:
https://bibliotekanauki.pl/articles/158739.pdf
Data publikacji:
2008
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Elektrotechniki
Tematy:
werniks
ablacja laserowa
laser Er:YAG
generacja swobodna
modulacja dobroci
impuls zawężony
Opis:
W artykule opisano porównanie procesu usuwania werniksu za pomocą długich i krótkich impulsów laserowych. W tym celu opracowano i uruchomiono system laserowy Er:YAG, z aktywną modulacją dobroci za pomocą komórki Pockels'a wykonanej z kryształu LiNbO3. W reżimie Q-modulacji osiągnięto impulsy o energii 11 mJ, czasie trwania 120 ns i częstotliwości repetycji 2 Hz. Długie impulsy laserowe, o czasie trwania powyżej 80 µs, otrzymane były w reżimie generacji swobodnej. Przeprowadzone eksperymenty pokazały, że długie oddziaływanie promieniowania laserowego z werniksem prowadzi do stopienia usuwanego materiału i dalej, do typowych szkodliwych efektów termicznych, takich jak zwęglenie, czy wypalenie. Krótkie oddziaływanie, prowadzi natomiast do czystej ablacji materiału, bez żadnych efektów ubocznych.
Comparative studies of varnish ablation with long and short pulses of Er:YAG laser system operated in three regimes are presented. In Q-switched mode, pulses of about 11 mJ in energy and duration of 120 ns at 2 Hz repetition rate were achieved. With Pockels cell switched off, in short and long free-running mode, pulses up to 21 mJ and 80 mJ respectively and durations in the range of 30-60 µs and 80-120 µs respectively, were obtained. Performed experiments have shown, that long interaction results in detrimental thermal effects, whereas short interaction results in clean ablation without any side effects.
Źródło:
Prace Instytutu Elektrotechniki; 2008, 234; 69-82
0032-6216
Pojawia się w:
Prace Instytutu Elektrotechniki
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hermeneutics of Heidegger’s facticity and its religious aspects
Autorzy:
Aleksandravičius, Povilas
Powiązania:
https://bibliotekanauki.pl/articles/431353.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Kardynała Stefana Wyszyńskiego w Warszawie
Tematy:
Heidegger Martin
hermeneutics
facticity
Er-eignis
life
temporality
hermeneutyka
faktyczność
życie
czasowość
Opis:
The concept of facticity that was developed by Heidegger from 1919 to 1923 composes the basis of all his further thought: the conceptions of Dasein and ontological temporality will originate namely from this concept. The article analyzes various expressions of the factitious life (care, Er-eignis, life, Self- Destruction, meaningfulness, death), yet the special consideration is paid to its religious aspects. Really the essence of facticity is treated by Heidegger as a temporality that is essentially correlated with the Christian experience. The influence of Saint Augustine to Heidegger and the Heideggerian concept of methodical atheism are analyzed and this analysis raises the intricate problem of the relation of the Black Forest philosopher to Christian faith and to God.
Źródło:
Studia Philosophiae Christianae; 2014, 50, 1; 173-204
0585-5470
Pojawia się w:
Studia Philosophiae Christianae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Time Calibration of the J-PET Detector
Autorzy:
Skurzok, M.
Silarski, M.
Alfs, D.
Białas, P.
Shivani, S.
Curceanu, C.
Czerwiński, E.
Dulski, K.
Gajos, A.
Głowacz, B.
Gorgol, M.
Hiesmayr, B.
Jasińska, B.
Kisielewska-Kamińska, D.
Korcyl, G.
Kowalski, P.
Kozik, T.
Krawczyk, N.
Krzemień, W.
Kubicz, E.
Mohammed, Muhsin
Pawlik-Niedźwiecka, M.
Niedźwiecki, S.
Pałka, M.
Raczyński, L.
Raj, J.
Rudy, Z.
Sharma, N.
Sharma, S.
Shopa, R.
Wieczorek, A.
Wiślicki, W.
Zgardzińska, B.
Zieliński, M.
Moskal, P.
Powiązania:
https://bibliotekanauki.pl/articles/1033283.pdf
Data publikacji:
2017-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
06.20.fb
36.10.Dr
11.30.Er
24.80.+y
Opis:
The Jagiellonian positron emission tomograph project carried out in the Institute of Physics of the Jagiellonian University is focused on construction and tests of the first prototype of PET scanner for medical diagnostic which allows for the simultaneous 3D imaging of the whole human body using organic scintillators. The J-PET prototype consists of 192 scintillator strips forming three cylindrical layers which are optimized for the detection of photons from the electron-positron annihilation with high time-and high angular resolutions. In this article we present time calibration and synchronization of the whole J-PET detection system by irradiating each single detection module with a ²²Na source and a small detector providing common reference time for synchronization of all the modules.
Źródło:
Acta Physica Polonica A; 2017, 132, 5; 1641-1644
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mac Lane Method for Determination of Extensions of Finite Groups. II. An Example for the Dihedral Group D$\text{}_{2}$
Autorzy:
Lulek, T.
Chatterjee, R.
Powiązania:
https://bibliotekanauki.pl/articles/1920926.pdf
Data publikacji:
1992-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
02.20.+b
02.40.+m
03.20.+i
11.30.Er
Opis:
The Mac Lane method of classification and construction of all extensions of a group Q by an Abelian group T is demonstrated on the case Q = D$\text{}_{2}$, T = C$\text{}_{2}$. Constructions involving free groups and operator homomorphisms are performed in detail, and the complete list of resulting extensions is given. It is shown that there are 8 classes of gauge equivalency, and they fall into 4 classes of isomorphism. The role of gauge transformations is pointed out. Physical contexts of various constructions are reviewed. A comparison with the direct cohomology definitions is performed.
Źródło:
Acta Physica Polonica A; 1992, 82, 3; 395-406
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modeling the Hydrological Impacts of Vegetation Cover Changes in the Upper Oum Er-Rbia Watershed (Morocco)
Autorzy:
Msaddek, Mohamed
El Garouani, Abdelkader
Kimbowa, George
Powiązania:
https://bibliotekanauki.pl/articles/1838350.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
hydrological modeling
vegetation cover
remote sensing
HEC-HMS
watershed
Upper Oum Er-Rbia
Morocco
Opis:
In Morocco, the mountainous areas are often exposed to bulky and vicious flows of water and sediment. This process is exacerbated by the decrease in vegetation cover and the disruption in rainfall-runoff conditions that frequently cause significant flooding. By exploring the main hydrologic elements of these processes, it is possible to understand the behavior and hydrological response of watersheds and thus plan accordingly. In this study, the authors focused on determining the morphometric characteristics of the upper Oum Er-Rbia River basin (UOERRB by assessing/ evaluating the land use and land cover changes for a period of 32 years (1984-2016). Hydrologic Engineering Center’s Hydrologic Modeling System (HEC-HMS) was applied to simulate four daily hydrological events. The concentration time was 7.7 hours. The four storm events examined to calibrate and validate the simulated outflow at the outlet indicated a good agreement between the hydrographs of the measured and simulated flows, with an average Nash-Sutcliffe efficiency (NSE) value ranging from 0.63 to 0.76. Between 2002 and 2016, an average 6.21 percent increase in vegetation cover of with annual rainfall increasing from 690 to 714.1 mm/year was observed. These results can contribute to a better understanding of the hydrologic processes and better estimation of the return flows and thus guiding management decisions and developments in the UOERRB.
Źródło:
Journal of Ecological Engineering; 2021, 22, 6; 167-180
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zagrożenia dziedzictwa kulturowego i jego ochrona w Jordanii – analiza trzech przypadków
Threats to cultural heritage and its protection in Jordan – three case studies
Autorzy:
Bodzek, Jarosław
Kopij, Kamil
Miszk, Łukasz
Powiązania:
https://bibliotekanauki.pl/articles/960300.pdf
Data publikacji:
2019
Wydawca:
Stowarzyszenie Konserwatorów Zabytków
Tematy:
archeologia
Dajaniya
Jordania
ochrona dziedzictwa
Tuwaneh
Umm er-Rasas
archaeology
heritage protection
Jordan
Opis:
Artykuł podejmuje temat ochrony dziedzictwa kulturowego na terenie Jordanii. Porównano w nim zagrożenia i sposób ochrony trzech dobrze zachowanych stanowisk archeologicznych, których rozkwit przypadał na czasy rzymskie i bizantyńskie: Umm er-Rasas, Dajaniya i Tuwaneh. Różna charakterystyka omówionych stanowisk oraz ich położenie względem współczesnego osadnictwa sprawia, że borykają się one ze zróżnicowanymi zagrożeniami, co pozwala wyciągać bardziej ogólne wnioski dotyczące ochrony dziedzictwa kulturowego w dzisiejszej Jordanii.
The paper focuses on cultural heritage protection in Jordan. It analyses and compares dangers and ways of protection of three different archaeological sites dated mainly to the Roman and Byzantine periods: Umm er-Rasas, Dajaniya and Tuwaneh. Different characteristics of these sites and their location relative to modern settlements means that they are struggling with various threats. This in turn allows to draw more general conclusions regarding cultural heritage protection in modern Jordan.
Źródło:
Wiadomości Konserwatorskie; 2019, 57; 38-49
0860-2395
2544-8870
Pojawia się w:
Wiadomości Konserwatorskie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Trójmorze – czyja inicjatywa?
Three-Seas – whose initiative?
Инициатива трех морей – чья идея?
Autorzy:
Kuk, Leszek
Powiązania:
https://bibliotekanauki.pl/articles/1930289.pdf
Data publikacji:
2021-09-30
Wydawca:
Wydawnictwo Adam Marszałek
Tematy:
Th ree-Seas Initiative
European Union aft er 2014
Central Europe aft er 2014
Polish foreign policy aft er 1989
USA-UE relations
Инициатива трех морей (Триморье)
Европейский Союз после
2014 г.
Центральная Европа после 2014 г.
польская внешняя политика после 1989 г.
отношения между США и ЕС
Opis:
The “Three-Seas area” project and the activities of the Three-Seas Initiative, i.e. the deepened cooperation of 12 Central European Member States of the European Union, which appeared in 2015, quickly gained considerable popularity in Poland. It has even been recognized as the flagship project of the Polish right wing grouped around the Law and Justice party, which took power in that same year 2015. In the “Three Seas” was seen another emanation of the idea of the so-called Intermarium, present in Polish political tradition since at least 1918. Meanwhile, the “Three Seas” project was prepared in the autumn of 2014 in the United States by the influential Atlantic Council think tank and included in a comprehensive document entitled “Completing Europe. From the North-South Corridor to Energy, Transportation, and Telecommunications Union Completing Europe”. The implementation of its assumptions would not, however, be limited to the modernization and strengthening of infrastructure connections between the aforementioned 12 states located in the NorthSouth belt from Estonia to Croatia and Bulgaria, which were planned to participate in the project. It would also mean the strengthening of their economic ties with the United States, a far-reaching weakening of their economic ties with Russia, and, most importantly, their “independence” in relation to the strong states of the “former Union” with Germany at the fore. The role of an intermediary in gaining the support of the Central European states was assigned to the new (since February 2015) president of Croatia, Kolinda GrabarKitarović, well known in the decision-making circles of the USA, NATO, and the European Union. It quickly recruited the new Polish president, Andrzej Duda, who represents the largest and most pro-American state of the Three Seas countries. These activities made it possible to establish an “organization” on September 29, 2015, during a meeting in New York, attended by 11/12 “leaders” of Central European states and 3 representatives of the Atlantic Council management. The Three Seas Initiative, defined as the “presidential platform”, is constantly expanding the fields of its activity, but it is still regarded as a relatively weak structure with an uncertain future. The sources of its relative internal weakness include, firstly, large differences in the potentials, political positions, and geopolitical orientations of the individual member states of the Initiative, and secondly - the opposing influence of external factors. The United States’ aspirations to make the Initiative “transatlantic” have been discreetly opposed since 2018 by the actions of the EU and the German authorities directed towards its “Europeanization”, that is, towards the harmonization of its activities with the position of the Union.
Проект «Триморья» и деятельность Инициативы трех морей, т.е. углубленное сотрудничество 12 государств Центральной Европы ЕС, появились в 2015 г., быстро приобретая значительную популярность в Польше. Инициатива была даже признана флагманским проектом польского правого крыла, сгруппированного вокруг партии Право и справедливость, которая пришла к власти в том же 2015 г. «Триморье» являлось иной формой воплощения идеи так наз. Междуморья, которая присутствует в польской политической традиции по крайней мере c 1918 г. Между тем, проект «Трех морей» был подготовлен осенью 2014 г. в США влиятельным тинк-танком Атлантический совет (Atlantic Council) и включен в комплексный документ, озаглавленный «Завершение Европы. От Северо-Южного коридора до энергетики, транспортировки и Телекоммуникационного союза, завершающие Европу». Однако, реализация его основных положений не будет ограничиваться модернизацией и укреплением инфраструктурных связей между вышеупомянутыми 12 государствами, расположенными в севере-южном поясе - от Эстонии до Хорватии и Болгарии, которые, как планировалось, должны были принять участие в проекте. Это также означало бы укрепление их экономических связей с США, с далеко идущим ослаблением их экономических контактов с Россией, и, главное, их «независимость» в отношениях с сильными государствами «старого Евросоюза» во главе с Германией. Роль посредника в получении поддержки Центрально-европейских стран была предвидена для нового (с февраля 2015 г.) президента Хорватии Колинды Грабар-Китарович - хорошо известной в высших кругах США, НАТО и ЕС. Проект быстро поддержал новый президент Польши Анджей Дуда, который представлял крупнейшуую и проамериканскую страну среди государств Триморья. Эти мероприятия позволили создать «организацию» 29 сентября 2015 г. во время встречи в Нью-Йорке, на которой присутствовали 11 из 12 «лидеров» Центральноевропейских стран и 3 представителя управления Атлантического совета. Инициатива трех морей, которая определяется как «президентская платформа», постоянно расширяет сферы своей деятельности, но все еще рассматривается как относительно слабая структура с неопределенным будущим. Источники ее внутренней слабости - это, во-первых, большие различия в потенциалах, политических позициях и геополитических ориентациях отдельных государствчленов инициативы, а, во-вторых - противоположное влияние внешних факторов. Стремление США, чтоб инициатива обрела «трансатлантический» характер, стали с 2018 г. осторожно противоречить действиям ЕС и немецких властей, направленных на ее «европеизацию», т.е. гармонизацию ее деятельности с позицией ЕС.
Źródło:
Nowa Polityka Wschodnia; 2021, 3(30); 50-75
2084-3291
Pojawia się w:
Nowa Polityka Wschodnia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Non-destructive methods for evaluation of the state of preservation in historical stone monuments:the case study of the Step Pyramid in Saqqara
Autorzy:
Kukela, A.
Seglins, V.
Powiązania:
https://bibliotekanauki.pl/articles/2027018.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Step Pyr a mid
geospatial model
weath er ing
stone ma te rial dam age
Opis:
This study aims to fa cil i tate vi sual in ter pre ta tion of the photo doc u men ta tion data by eval u a tion of the 3D model of the Step Pyr a mid of Djoser us ing MicroStation V8i soft ware. The in te gra tion of the data into the 3D model al lowed to make num ber of con clu sions re gard ing the struc ture of the Step Pyr a mid, po ten tial threats to its sta bil ity, stone ma te - rial used for the con struc tion of the pyr a mid and dif fer ences in qual ity of the mor tar ap plied. The re sults of this study de note high po ten tial of this meth od ol ogy for its ap pli ca tion in pre lim i nary stud ies of stone mon u ments on Memphite ne crop o lis area to con trib ute the elab o ra tion of fu ture pres er va tion and con ser va tion strat egy.
Źródło:
Studia Quaternaria; 2013, 30; 109-114
1641-5558
2300-0384
Pojawia się w:
Studia Quaternaria
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
FTIR Study of Multifunctional Coatings
Autorzy:
Paluszkiewicz, C.
Długoń, E.
Kwiatek, W.
Powiązania:
https://bibliotekanauki.pl/articles/1490258.pdf
Data publikacji:
2012-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
82.80.Gk
81.15.Pq
68.37.Yz
82.80.Dx
78.30.Er
Opis:
Nanoparticles of hydroxyapatite (HAp) or tricalcium phosphates (TCP) connected with fibrous phase create biomimetic system between the natural fibrous and ceramic materials building a bone. Chemical bonding between the implant and host tissue takes place through the phosphate layer, which is created on the bioactive implant surface when in contact with the body fluids environment. The Fourier transform infrared spectroscopy can yield microstructural information on the segment level complementary to the morphological information acquired from X-ray scattering as well as electron microscopy. The Fourier transform infrared method is applied to study thin films on different substrates. Moreover, the Fourier transform infrared microscope technique allows to obtain surface and cross-section maps in reflection and transmission modes. This leads to visualization of chemical imaging between substrates and films. In this work, the coatings with different addition of nanohydroxyapatite were deposited by electrodeposition method on titanium and Ti6Al4V alloys. Additionally, sublayers, such as $TiO_2$, were used to increase hydroxyapatite coating adhesion. The selection of suspension composition, depositing time and layer heat treatment conditions have the conclusive influence on the films parameters. All these experimental parameters were monitored during the sample preparation procedure. Changes in phase composition of biomaterials were determined by the Fourier transform infrared reflection technique based on focal plane array detection system. It has been found that results obtained by the Fourier transform infrared spectroscopy show the differences between the studied samples as well as that optimum time of HAp deposition was 90 s.
Źródło:
Acta Physica Polonica A; 2012, 121, 2; 551-554
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modeling the Hydrological Impacts of Vegetation Cover Changes in the Upper Oum Er-Rbia Watershed (Morocco)
Autorzy:
Msaddek, Mohamed
El Garouani, Abdelkader
Kimbowa, George
Powiązania:
https://bibliotekanauki.pl/articles/1838305.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
hydrological modeling
vegetation cover
remote sensing
HEC-HMS
watershed
Upper Oum Er-Rbia
Morocco
Opis:
In Morocco, the mountainous areas are often exposed to bulky and vicious flows of water and sediment. This process is exacerbated by the decrease in vegetation cover and the disruption in rainfall-runoff conditions that frequently cause significant flooding. By exploring the main hydrologic elements of these processes, it is possible to understand the behavior and hydrological response of watersheds and thus plan accordingly. In this study, the authors focused on determining the morphometric characteristics of the upper Oum Er-Rbia River basin (UOERRB by assessing/ evaluating the land use and land cover changes for a period of 32 years (1984-2016). Hydrologic Engineering Center’s Hydrologic Modeling System (HEC-HMS) was applied to simulate four daily hydrological events. The concentration time was 7.7 hours. The four storm events examined to calibrate and validate the simulated outflow at the outlet indicated a good agreement between the hydrographs of the measured and simulated flows, with an average Nash-Sutcliffe efficiency (NSE) value ranging from 0.63 to 0.76. Between 2002 and 2016, an average 6.21 percent increase in vegetation cover of with annual rainfall increasing from 690 to 714.1 mm/year was observed. These results can contribute to a better understanding of the hydrologic processes and better estimation of the return flows and thus guiding management decisions and developments in the UOERRB.
Źródło:
Journal of Ecological Engineering; 2021, 22, 6; 167-180
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reynolds number effects in the flow of a Vočadlo electrorheological fluid in a curved gap
Autorzy:
Walicka, A.
Falicki, J.
Powiązania:
https://bibliotekanauki.pl/articles/264673.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
inertia effects
fixed surfaces of revolution
Vočadlo ER fluid
pressurized flow
bezwładność
przepływ ciśnieniowy
powierzchnia obrotowa
Opis:
Many electrorheological fluids (ERFs) as fluids with micro-structure demonstrate a non-Newtonian behaviour. Rheometric measurements indicate that some flows of these fluids may by modelled as the flows of a Vočadlo ER fluid. In this paper, the flow of a Vočadlo fluid – with a fractional index of non-linearity – in a narrow gap between two fixed surfaces of revolution with a common axis of symmetry is considered. The flow is externally pressurized and it is considered with inertia effect. In order to solve this problem the boundary layer equations are used. The Reynolds number effects (the effects of inertia forces) on the pressure distribution are examined by using the method of averaged inertia terms of the momentum equation. Numerical examples of externally pressurized flows in the gap between parallel disks and concentric spherical surfaces are presented.
Źródło:
International Journal of Applied Mechanics and Engineering; 2017, 22, 3; 675-695
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Konserwacja malowidła "fajumskiego"
Autorzy:
Kowalski, Zbigniew
Powiązania:
https://bibliotekanauki.pl/articles/535095.pdf
Data publikacji:
1958
Wydawca:
Narodowy Instytut Dziedzictwa
Tematy:
enkaustyczne portrety trumienne
el-Fajum
Er-Rubajat
malowidła „fajumskie”
malowidło z el-Fajum
spoiwo enkaustyczne
Źródło:
Ochrona Zabytków; 1958, 3-4; 220-226
0029-8247
Pojawia się w:
Ochrona Zabytków
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multi-objective optimization for weld track geometry in wire-arc directed energy deposition of ER308L stainless steel
Autorzy:
Nguyen, Van Canh
Le, Van Thao
Pham, Ngoc-Linh
Nguyen, Anh-Thang
Powiązania:
https://bibliotekanauki.pl/articles/24084674.pdf
Data publikacji:
2023
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
wire-arc directed energy deposition
weld track
ER308L stainless steel
multi-objective optimisation
Opis:
In this research, the weld track geometry in wire-arc DED (directed energy deposition) of ER308L stainless steel was predicted and optimized. The studied geometrical attributes of weld tracks include weld track width (WTW), weld track height (WTH), and contact angle (α). The experiment was designed based on Taguchi method with three variables (current I, voltage U, and weld velocity v) and four levels for each variable. The ANOVA was adopted to evaluate the accuracy of the models and impact levels of variables on the responses. The TOPSIS method was utilized to predict the optimal variables. The results indicated that the predicted models were built with high accuracy levels (R2 = 98.92%, 98.77%, and 98.91% for WTW, WTH, and α, respectively). Among the studied variables, U features the highest effects on WTW and α with 78.56% and 69.90% of contribution, respectively, while v is the variable that has the most impact on WTH with 39.82% of contribution. The optimal variables predicted by TOPSIS were U = 23 V, I = 140 A, and v = 300 mm/min, which allows building components with stable and regular geometry.
Źródło:
Journal of Machine Engineering; 2023, 23, 2; 123--134
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
ER(R)GO nr 33 (2/2016) - dźwięki/pauzy/cisze
ER(R)GO No. 33 (2/2016) - sounds/pauses/silences
Autorzy:
Er(r)go, Redakcja
Powiązania:
https://bibliotekanauki.pl/articles/466988.pdf
Data publikacji:
2016
Wydawca:
Wydawnictwo Uniwersytetu Śląskiego
Tematy:
pełny numer
pełny tekst numeru
Er(r)go
teoria
literatura
kultura
full issue
full text
Theory
Literature
Culture
Opis:
The complete issue of ER(R)GO No. 33 (2/2016) - sounds/pauses/silences for download.
The complete issue of ER(R)GO No. 33 (2/2016) - sounds/pauses/silences for download.
Źródło:
ER(R)GO: Teoria – Literatura – Kultura; 2016, 33
1508-6305
2544-3186
Pojawia się w:
ER(R)GO: Teoria – Literatura – Kultura
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Gamma Irradiation on Cement Composites Observed with XRD and SEM Methods in the Range of Radiation Dose 0-1409 MGy
Autorzy:
Łowińska-Kluge, A.
Piszora, P.
Powiązania:
https://bibliotekanauki.pl/articles/1812251.pdf
Data publikacji:
2008-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
28.41.Kw
28.41.Qb
61.05.cp
61.43.Er
61.80.Ed
68.37.Hk
Opis:
The effect of gamma radiation in the range of 0-1409 MGy on the structure of a new mineral additive to cement based composites was investigated in the perspective of employing them as radioactive waste protection material. According to the authors knowledge, it is the first paper dealing with observations of the cement matrix, both pure and modified, treated with so giant radiation dose. The absorption of gamma radiation modifies the morphology of the additive grains, causes decomposition of cement hydrates and clinker relicts in cement paste containing the additive at twice higher radiation dose than that inducing the decomposition of the reference pure cement paste and the cement paste containing pozzolane additives.
Źródło:
Acta Physica Polonica A; 2008, 114, 2; 399-411
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Koncepcje kształtowania bezpieczeństwa ruchu drogowego. Cz. 2, Możliwości zastosowania koncepcji trzech er w Polsce
Concepts of road safety development. Part 2. The possibility of the three eras concept implementation in Poland
Autorzy:
Jamroz, K.
Powiązania:
https://bibliotekanauki.pl/articles/144860.pdf
Data publikacji:
2013
Wydawca:
Stowarzyszenie Inżynierów i Techników Komunikacji Rzeczpospolitej Polskiej
Tematy:
drogi
bezpieczeństwo ruchu drogowego
kształtowanie bezpieczeństwa
koncepcja trzech er
roads
road safety
developing safety
three eras concepts
Opis:
Odpowiadając na zalecenia ONZ i Unii Europejskiej, Polska przystąpiła do opracowania strategicznego programu brd na lata 2013-2020. Jednym z podejść do opracowania tego programu powinna być koncepcja trzech er. W artykule przedstawiono propozycję praktycznego wdrożenia koncepcji trzech er na sieci dróg w Polsce.
In response to the recommendations of the United Nations and the European Union, Poland has acceded to develop a strategic road safety program for the years 2013 to 2020. One of the approaches to the development of this program should be the concept of three eras. This article describes a practical implementation of the concept of the three eras of the road network in Poland.
Źródło:
Drogownictwo; 2013, 1; 15-19
0012-6357
Pojawia się w:
Drogownictwo
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Informacje dla Autorów
Information for Contributors
Autorzy:
Er(r)go, Redakcja
Powiązania:
https://bibliotekanauki.pl/articles/467862.pdf
Data publikacji:
2018
Wydawca:
Wydawnictwo Uniwersytetu Śląskiego
Tematy:
information for contributors
stylesheet
informacje dla autorów
instrukcje formatowania i zapisu bibliograficznego
Information for contributors
Er(r)go stylesheet
Opis:
Information for prospective contributors to Er(r)go and stylesheet.
Information for potential authors and other contributors to Er(r)go.
Źródło:
ER(R)GO: Teoria – Literatura – Kultura; 2018, 37
1508-6305
2544-3186
Pojawia się w:
ER(R)GO: Teoria – Literatura – Kultura
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Pre-History of the Hungarian and Romanian 1968ers
Autorzy:
Matus, Adrian-George
Powiązania:
https://bibliotekanauki.pl/articles/1431999.pdf
Data publikacji:
2021-06-18
Wydawca:
Ośrodek Pamięć i Przyszłość
Tematy:
pokolenie '68
hippis
kontrkultura w Europie Wschodniej
sprzeciw wobec reżimu
'68er generation
hippie
Eastern European counterculture
dissent
Opis:
This paper focuses on the Romanian and Hungarian youth of the late 1960s. More specifically, it aims at understanding how their childhood experiences differed from those of their counterparts in the West and even in other Soviet Bloc countries, and how this influenced their tactics of opposition. The oral history interviews present a more complex picture than one of a simple generation gap between the 1968ers and their parents. In some cases, the former challenge the authority of their parents, while in others they continue their struggle.
Artykuł ma na celu zrozumienie, w jaki sposób doświadczenia z dzieciństwa rumuńskiej i węgierskiej młodzieży późnych lat 60. XX w. różniły się od doświadczeń ich rówieśników na Zachodzie, a także w innych krajach bloku sowieckiego, i jak to wpłynęło na ich działalność opozycyjną. Relacje historii mówionej przedstawiają bardziej złożony obraz niż zwykła luka pokoleniowa między pokoleniem 1968 r. a ich rodzicami. W niektórych przypadkach ci pierwsi kwestionują autorytet swoich rodziców, podczas gdy w innych kontynuują ich walkę.
Źródło:
Wrocławski Rocznik Historii Mówionej; 2020, 10; 70-103
2719-7522
2084-0578
Pojawia się w:
Wrocławski Rocznik Historii Mówionej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Which theory of communication is “political correctness”?
Autorzy:
Konye, Michael Nnamdi
Powiązania:
https://bibliotekanauki.pl/articles/954200.pdf
Data publikacji:
2016
Wydawca:
Fundacja Pro Scientia Publica
Tematy:
Cultural Marxism
68-er Bewegung
kyriarchy
Gutmensch
politiquement correcte
Kotobagari
Allan Bloom
McCarthyism
Mao Zedong
Max Horkheimer
Jürgen Habermas
Opis:
The paper focuses on ‟political correctness”, which has become a late 20th century catch-phrase in Western European and North American liberal democracies but also  has found currency in the political climate of the Asian and Eastern countries. A historical and multi-cultural review is intended as an introduction to a broader philosophical analysis of the Marxist backgrounds of political correctness and its neo-Marxist theoretical correctives in Jürgen Habermas’s theory of communicative action. My aim is to draw out both the educational and cultural implications of laying out the ethos of contemporary discourse on the foundations of the evolving dynamics of the rhetoric of political correctness.
Źródło:
Journal of Education Culture and Society; 2016, 7, 2; 53-74
2081-1640
Pojawia się w:
Journal of Education Culture and Society
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-50 z 71

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