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Tytuł:
Blast loading on aluminum foam microstructure
Autorzy:
Miedzińska, D.
Panowicz, R.
Powiązania:
https://bibliotekanauki.pl/articles/244041.pdf
Data publikacji:
2010
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
microstructure
aluminium foam
strain rate effect
Opis:
One of the possible options as a material for protective layers is aluminum foams which become also very popular due to their lightweight and excellent plastic energy absorbing properties. Such characteristics have been appreciated by the automotive industry with continued research to further understand foam properties. Compressed foaming materials exhibit extensive plastic response, while the initial elastic region is limited in tension by a tensile brittle-failure stress. Aluminum foams have become also an attractive material as blast protective layers due to their desirable compressive properties. With different material engineering techniques (as, for example double-layer foam cladding) they can be customized to achieve the most desirable properties. Energy absorption capacity of foams microstructures under blast load was analytically confirmed based on a rigid-perfectly plastic-locking foam model Initial research indicates that energy absorbed by the cladding is much larger than that under quasi-static conditions due to strain rate effect. In this paper a numerical model of a closed cell aluminum foam idealistic microstructure was presented. The quasi static compression tests were carried out with the use of LS Dyna computer code. Then the sample was numerically loaded with the blast wavefrom detonation of explosives and its behavior was analyzed. The results ofboth analyses were compared.
Źródło:
Journal of KONES; 2010, 17, 3; 287-292
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Factors affecting the precision of measurements with the usage of proportional counters
Autorzy:
Bochenek, M.
Koperny, S.
Kowalski, T. Z.
Powiązania:
https://bibliotekanauki.pl/articles/146131.pdf
Data publikacji:
2008
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
proportional counter
gas gain
count rate effect
Opis:
In all measurements with the usage of proportional counters the pulse height and its distribution are measured. From this one can calculate energy losses and their distribution along the particle track position in 2D. The pulse height at the output of electronic circuit, co-working with the proportional counters, depends on: gas gain, energy deposited inside a counter and parameters of the readout electronics. However, it is only the first approximation. Careful studies show that output pulse height depends on the place of radiation absorption along and across the counter. The measured effect is as high as a few percent across and along the counter. Those effects were observed for both cylindrical and rectangular geometry. The pulse height depends not only on the registered count rate but also on the speed of its change. All the above effects are a few percentage effects, but can strongly affect the correctness of measurement made with the usage of proportional counters.
Źródło:
Nukleonika; 2008, 53, suppl. 2; 29-32
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rate effect on the shear resistance of sandy clay in direct shear tests
Wpływ prędkości na opory ścinania iłów piaszczystych w badaniach bezpośredniego ścinania
Autorzy:
Dolzyk-Szypcio, K.
Chmielewska, I.
Powiązania:
https://bibliotekanauki.pl/articles/40853.pdf
Data publikacji:
2017
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
sandy loam
shear resistance
shear test
rate effect
Źródło:
Acta Scientiarum Polonorum. Architectura; 2017, 16, 4
1644-0633
Pojawia się w:
Acta Scientiarum Polonorum. Architectura
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of strain rate on ductile fracture. A new methodology
Nowa metoda analizy wpływu prędkości odkształcenia na zniszczenie plastyczne metali
Autorzy:
Nowacki, W. K.
Nowak, Z.
Perzyna, P.
Pęcherski, R. B.
Powiązania:
https://bibliotekanauki.pl/articles/280613.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
effect of strain rate
ductile fracture
DH-36 steel
thermographic observation
dynamic double shear test
Opis:
The aim of our study is to discuss a new methodology to account for the effect of strain rate on ductile fracture phenomena. Theory of inelastic materials accounting for the effects of microshear bands and microdamage is presented. The influence of microshear bands is explained by means of a function describing the instantaneous contribution of shear banding in the total rate of plastic deformation. The experimental investigations of the effect of strain rate on ductile fracture with use of the results of a dynamic double shear test of DH-36 steel with thermographic observations are reported. The registration of temperature evolution during the deformation process can provide additional data for the identification of the shear banding contribution function and the onset of ductile fracture.
W pracy przedstawiono nowy sposób analizy zjawiska zniszczenia ciągliwego metali z uwzględnieniem wpływu prędkości odkształcenia. Przedstawiono teorię materiałów niesprężystych z uwzględnieniem efektu pasm ścinania i mikrouszkodzeń. W opisie zjawiska płynięcia plastycznego uwzględniono wpływ mikropasm ścinania przez wprowadzenie funkcji opisującej chwilowy udział mikropasm ścinania w całkowitej prędkości deformacji plastycznej. Przedstawiono wyniki badań doświadczalnych określających wpływ prędkości odkształcenia na zniszczenie i sposób wykorzystania obserwacji termograficznych w dynamicznej próbie podwójnego ścinania dla stali DH-36. Pomiary zmian temperatury podczas procesu deformacji dostarczają dodatkowych danych ułatwiających zidentyfikowanie funkcji udziału mikropasm ścinania dla danego materiału.
Źródło:
Journal of Theoretical and Applied Mechanics; 2010, 48, 4; 1003-1026
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Efekt zewnętrzny wykształcenia
The External Effect of Education
Autorzy:
Strawiński, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/575744.pdf
Data publikacji:
2009-06-30
Wydawca:
Szkoła Główna Handlowa w Warszawie. Kolegium Analiz Ekonomicznych
Tematy:
education
external rate of return
excess rate of return
private rate of return
instrumental variables
spillover effect
Opis:
The author sets out to measure the external rate of return on secondary and university-level education in Poland. The rate is defined as the excess rate of return for human capital. However, the author says it is difficult to precisely quantify the rate due to methodological problems and the unavailability of data. The economic model used in the article is based on the comparative advantage theory. The econometric model identifies the external rate of return on education thanks to the use of instrumental variables. The analysis confirms that there was a shift in the structure of demand for higher education in Poland in 1998-2005. The author uses empirical data to show the positive external effect linked with education. The private annual rate of return on education in Poland exceeded 7 percent in 1998-2005 and was among the highest in Europe. Additionally, the author shows that there is an external effect linked with education. It stands at 1%-5% annually, Strawiński says. The results obtained in the analysis were confirmed using various model options and estimation methods. Moreover, Strawiński showed that as the proportion of the population with a secondary education increased, people began to earn higher paychecks. This means that secondary education generates a spillover effect, Strawiński concludes.
Źródło:
Gospodarka Narodowa. The Polish Journal of Economics; 2009, 232, 5-6; 39-60
2300-5238
Pojawia się w:
Gospodarka Narodowa. The Polish Journal of Economics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Exchange Rate and Two Price Inflations in Poland in the Period 1999-2009. Do Globalization and Balassa-Samuelson Effect Matter?
Autorzy:
Kelm, Robert
Powiązania:
https://bibliotekanauki.pl/articles/483309.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
cointegration
exchange rate
Balassa-Samuelson effect
price-wage loop
Opis:
The abrupt depreciation of the zloty during the subprime crisis and fast-rising prices are serious problems, because Poland, having to fulfil five Maastricht criteria, makes the dependence of her domestic inflation on price increases in the EU countries the central point of the discussion about the optimal monetary and fiscal policy rules for the next few years. The primary objective of the paper is to test out some hypotheses about the main sources of the volatility of the Polish zloty / euro exchange rate and inflation in Poland. Because several competing theoretical models describing inflationary processes are widely used, special attention is paid to their empirical verification. The working-hypotheses allowing for the country-specific features of the consumer and producer price inflation are formulated and verified in the paper.
Źródło:
Central European Journal of Economic Modelling and Econometrics; 2010, 2, 4; 315-349
2080-0886
2080-119X
Pojawia się w:
Central European Journal of Economic Modelling and Econometrics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Increasing Effect of Water Clarifiers on the Treatment of Polymer-Contain-ing Oil Production Sewage
Autorzy:
Yin, Xianqing
Ma, Yabing
Wang, Xiujun
Huang, Xueqi
Zhu, Mijia
Powiązania:
https://bibliotekanauki.pl/articles/1849312.pdf
Data publikacji:
2021
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
cationic agent
increasing effect
oil removal rate
water clarifiers
Opis:
Residual anionic polyacrylamide in polymer-flooding oil production wastewater results in the formation of a ther-modynamically stable system. In this study, the effects of three different types of medicaments, namely, cationic, anionic and nonionic agents, in dynamic treatments, such as adding a position, dosage and combined processes of chemical addition, on the oil removal rate of sewage were examined. In the treatment with a single agent, the oil removal rate of the cationic agent CQY-1 and the nonionic agent CHF-2 was ≥ 97.8%. The charge characteristics of different ionic agents for the combined dosing treatment indicated that the oil removal rate was better than that of a single agent; the combined dosing ratio was 50 mg/L CHP-1 and 50 mg/L CHP-2. At 80 mg/L CQY-1, the oil removal rate of the dynamic process was ≥ 98.8%, and the dosage of CQY-1 was reduced from 200 mg/L to 50–150 mg/L, which corresponded to a decrease of 25.0%–75.0%. Therefore, the combined dosing process effectively reduced the single dosage.
Źródło:
Polish Journal of Chemical Technology; 2021, 23, 2; 20-26
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of dynamic properties attributable to hydraulic lines onto operation of avionic
Autorzy:
Ułanowicz, L.
Powiązania:
https://bibliotekanauki.pl/articles/247057.pdf
Data publikacji:
2011
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
fluid power transmission
pump delivery
volume flow rate
hydrostatic (forcing) pressure
compressibility effect
viscous friction effect
Opis:
The present paper is dedicated to discuss how dynamic parameters of a hydraulic line intended to transfer hydraulic power from a source of hydraulic power (a hydraulic pump) to an actuating device (a hydraulic motor) can affect operation of an avionic hydraulic drive. Avionic hydraulic drives are operated with fast-varying waveforms of flow intensities and pressures. It is why analysis of most hydraulic drive systems must take account of compressibility of working fluid and elasticity of hydraulic lines. It leads to a wave model for propagation of energy variation down a hydraulic line (a pipe). The paper deals with flow of a compressible liquid via a hydraulic line with flexible walls. Theoretical deliberations were successfully verified by experimental research studies that were carried out on a dedicated test bench, therefore the presented amplitude vs. frequency characteristic curves of the hydraulic line could be obtained from both theoretical considerations and experimental research studied. The experimental research studies were carried out for hydraulic line terminated with a fixed flow restrictor alone and a flow restrictor combined with a hydraulic accumulator as well as for a hydraulic line supplied from a source of constant pressure and terminated with a valve with adjustable flow together with a hydraulic accumulator. The theoretical calculations for the amplitude vs. frequency characteristic curve are based on a model for a hydraulic line with its resistance depending on frequency.
Źródło:
Journal of KONES; 2011, 18, 4; 535-542
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of dynamic properties of hydraulic lines for fluid power transmission
Autorzy:
Ułanowicz, L.
Powiązania:
https://bibliotekanauki.pl/articles/247615.pdf
Data publikacji:
2010
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
fluid power transmission
delivery of a pump
volume flow rate
hydrostatic (forcing) pressure
compressibility effect
viscous friction effect
Opis:
This paper presents the results of a hydraulic line dynamic properties analysis taking into account inertia of the fluid flowing in rigid and flexible lines, the compressibility effect for this fluid and the viscous friction effect. The following are described and analyzed: solution of the wave equation in the form binding four variables: pressure and flow rate at the line input, and pressure and flow rate and the line output; two of the above-mentioned variables should be regarded as independent (input) and the other two as dependent (output), the accuracy comparison of distributed parameters model to lumped parameters model with regard to applicability range in hydraulic systems analysis, pressure value at given installation points as a response to rapid valve closing (transient response) or to valve opening (waterhammer effect). In these considerations the hydraulic line is regarded as a two-port with two inputs and two outputs with a definite transmittance matrix. Main considerations concern the variable resistance model. A general solution is given as a function of the Laplace operator. Introducing appropriate simplifications into the variable resistance model, the constant resistance model and lossless line model is obtained. Also, general solutions for three different lump parameter models are presented. For the lumped parameters lin presents three equivalent models possible, i.e. as: a symmetrical two-port, a two-port with shared resistance and a two-port with capacitance at the output.
Źródło:
Journal of KONES; 2010, 17, 3; 467-475
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A test performance of optical fibre sensors for real-time investigations of rotational seismic events: a case study in laboratory and field conditions
Autorzy:
Jaroszewicz, Leszek R.
Dudek, Michał
Kurzych, Anna T.
Teisseyre, Krzysztof P
Powiązania:
https://bibliotekanauki.pl/articles/2063893.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Elektryków Polskich
Tematy:
sagnac effect
field tests
rotational seismology
fibre optic seismograph
rotation rate
signal analysis
Opis:
Preliminary results of laboratory and field tests of fibre optic rotational seismographs designed for rotational seismology are presented. In order to meet new directions of the research in this field, there is clearly a great need for suitable and extremely sensitive wideband sensors. The presented rotational seismographs based on the fibre optic gyroscopes show significant advantages over other sensor technologies when used in the seismological applications. Although the presented results are prepared for systems designed to record strong events expected by the so-called “engineering seismology”, the described system modification shows that it is possible to construct a device suitable for weak events monitoring expected by basic seismological research. The presented sensors are characterized, first and foremost, by a wide measuring range. They detect signals with amplitudes ranging from several dozen nrad/s up to even few rad/s and frequencies from 0.01 Hz to 100 Hz. The performed Allan variance analysis indicates the sensors main parameters: angle random walk in the range of 3 ∙ 10−8–2 ∙ 10−7 rad/s and bias instability in the range of 2 ∙ 10−9–2 ∙ 10−8 rad/s depending on the device. The results concerning the registration of rotational seismic events by the systems located in Książ Castle, Poland, as well as in the coalmine “Ignacy” in Rybnik, Poland were also presented and analysed.
Źródło:
Opto-Electronics Review; 2021, 29, 4; 213--219
1230-3402
Pojawia się w:
Opto-Electronics Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparing selected parameters of a two-dimensional turbulent free jet on the basis of experimental results, digital simulations, and theoretical analyses
Autorzy:
Skotnicka-Siepsiak, A.
Powiązania:
https://bibliotekanauki.pl/articles/298451.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:
2D free jet
turbulent jet
CFD
spreading rate
velocity profiles
Coanda effect
Opis:
The presented experimental and digital examinations of a two-dimensional turbulent free jet are a first phase of in the study of the Coandă effect and its hysteresis. Additionally, basing on theoretical analyses, selected results for a turbulent jest have been also mentioned, considering theoretical assumptions for the wall layer. As the result, on the basis of experimental, digital, and analytical methods, a review of characteristic jet properties has been prepared, which includes a jet spreading ratio, its cross and longitudinal sections, and turbulence level. The jet spreading radio has been expressed as a non-linear function of the x : b relative length.
Źródło:
Technical Sciences / University of Warmia and Mazury in Olsztyn; 2017, 20(1); 31-48
1505-4675
2083-4527
Pojawia się w:
Technical Sciences / University of Warmia and Mazury in Olsztyn
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The short-term effects of crude oil on the survival of different size-classes of cladoceran Daphnia magna (Straus, 1820)
Autorzy:
Lennuk, L.
Kotta, J.
Taits, K.
Teeveer, K.
Powiązania:
https://bibliotekanauki.pl/articles/47987.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
crude oil
short-term effect
pollution
Daphnia magna
size class
survival rate
aquatic environment
Źródło:
Oceanologia; 2015, 57, 1
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Corrosion fatigue crack propagation rate characteristics for weldable ship and offshore steels with regard to the influence of loading frequency and saltwater temperature
Autorzy:
Jakubowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/259716.pdf
Data publikacji:
2017
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
corrosion fatigue
crack growth rate
crack length
saltwater temperature
frequency effect
ship and offshore steels
Opis:
After Vosikovsky (1975), the corrosion fatigue crack growth rate (CFCGR) characteristics have been divided into three regions. The region-III rates are very close to mechanical fatigue crack growth rates. CFCGR formulae, including the long-crack length effect (in region I only), the loading frequency effect (in region II only), and the saltwater temperature effect, have been proposed. It has been assumed that CFCGR is proportional to f –k, where f is the loading frequency and k is a constant. The averaged k-value for all steels of yield stress (YS) below 500 MPa, usually with ferrite-pearlite microstructures, is higher than that for YS > 500 MPa, usually with quenched and tempered microstructures. The temperature effect does not appear in region I below room temperature. In the remaining cases, that is, in region I for elevated temperatures and in region II for both low and elevated temperatures, the CFCGR increases with increasing temperature. Under a potential of –0.8 V, a long-crack-length effect, qualitatively similar to analogous effect for free corrosion conditions, appears.
Źródło:
Polish Maritime Research; 2017, 1; 88-99
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kontrowersje wokół koncepcji krzywej Phillipsa
The Phillips Curve Controversy
Autorzy:
Grabia, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/574201.pdf
Data publikacji:
2014-10-31
Wydawca:
Szkoła Główna Handlowa w Warszawie. Kolegium Analiz Ekonomicznych
Tematy:
krzywa Phillipsa
hipoteza racjonalnych oczekiwań
stopa bezrobocia równowagi
efekt piasku
efekt smarowania
Phillips curve
rational expectations hypothesis
equilibrium unemployment rate
sand effect
grease effect
Opis:
The article discusses the controversy among economists over the so‑called Phillips curve, which shows the relationship between unemployment and inflation in an economy. The complexity of mechanisms that govern the economy causes inflation and unemployment to be mutually interdependent, the author notes. The relationship between these two indicators has been the subject of economic research since the 1950s when the Phillips curve was first commonly applied. The article consists of an introduction, three main parts, and a summary. The first part analyzes the position and slope of different versions of the Phillips curve. The second part focuses on the controversy surrounding the hypothesis of rational expectations and the equilibrium unemployment rate. The third part attempts to answer the question whether the Phillips curve should continue to be used in modern macroeconomic analysis. The article ends with a summary and conclusions. The author concludes that the Phillips curve may take various shapes in both the short and long run depending on the type of inflation, which can be of either the demand‑pull or cost‑push variety, and the fact whether its positive consequences outweigh negative ones or vice versa. In addition, Grabia argues that the Phillips curve in its extended versions can still be used as an effective analytical instrument in macroeconomics.
Złożoność mechanizmów rządzących gospodarką powoduje, że najważniejsze kategorie makroekonomiczne, do których należy zaliczyć m.in. inflację i bezrobocie, z reguły są współzależne. Analiza związków między tymi wielkościami jest przedmiotem badań ekonomistów mniej więcej od lat 50. XX w. Od tego czasu niezmiennie dużą popularnością cieszy się tzw. krzywa Phillipsa. Celem artykułu jest przedstawienie kontrowersji, jakie wywołuje ona wśród teoretyków ekonomii. Artykuł składa się z wprowadzenia, trzech części zasadniczych oraz podsumowania. W części pierwszej zanalizowano problem dotyczący położenia i nachylenia różnych wersji krzywej Phillipsa. W części drugiej przedstawiono kontrowersje związane z hipotezą racjonalnych oczekiwań oraz stopą bezrobocia równowagi. W części trzeciej podjęto próbę odpowiedzi na pytanie, czy krzywa Phillipsa nadal powinna być wykorzystywana we współczesnych analizach makroekonomicznych. Artykuł zakończono podsumowaniem zawierającym wnioski końcowe. Stwierdzono w nich m.in., że krzywa Phillipsa może przyjmować różne kształty zarówno w okresie krótkim, jak i długim. Zależy to bowiem od rodzaju inflacji, która może być popytowa lub kosztowa, oraz od tego, czy przeważać będą jej pozytywne, czy negatywne następstwa. Ponadto podkreślono, że krzywa Phillipsa w rozszerzonych wersjach nadal może być skutecznym narzędziem analitycznym, stosowanym w makroekonomii.
Źródło:
Gospodarka Narodowa. The Polish Journal of Economics; 2014, 273, 5; 5-28
2300-5238
Pojawia się w:
Gospodarka Narodowa. The Polish Journal of Economics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Katalityczny efekt nanocząstek Fe₂O₃ na spalanie heterogenicznego stałego paliwa rakietowego PBAN/NH₄ClO₄/HMX/Al
Catalytic effect of nano Fe₂O₃ on burning rate of aluminized PBAN/AP/HMX composite propellant
Autorzy:
Florczak, B.
Cudziło, S.
Powiązania:
https://bibliotekanauki.pl/articles/209289.pdf
Data publikacji:
2009
Wydawca:
Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
Tematy:
paliwo rakietowe
nano Fe2O3
efekt katalityczny
prędkość spalania
aluminized composite propellant
catalytic effect
burning rate
Opis:
W artykule przedstawiono wyniki badań heterogenicznego paliwa rakietowego PBAN/NH₄ClO₄/HMX/Al zawierającego nano i mikrocząstki Fe₂O₃ lub ferrocen w roli katalizatora. Nanoproszek Fe₂O₃ był otrzymywany przez redukcję azotanu żelaza za pomocą alkoholu poliwinylowego w warunkach niskotemperaturowej syntezy spaleniowej. Zbadano morfologię i mikrostrukturę składników. Przeprowadzono obliczenia termodynamiczne i zmierzono prędkość spalania w bombie Crawforda. Stwierdzono, że katalityczny wpływ nanoproszku Fe₂O₃ na liniową prędkość spalania jest porównywalny z wpływem ferrocenu.
In the present work, aluminized PBAN/AP/HMX composite propellants containing nanometer and micrometer sized Fe₂O₃ as well as ferrocene as catalysts were tested. Fe₂O₃ nanopowders were prepared by the sol-gel auto-combustion method using polyvinyl alcohol as a gelating agent (and fuel) and iron nitrate as an oxidizer and a precursor of iron oxide. The morphology and microstructure of the components and propellant samples were determined. Thermodynamic calculations were performed and burning rates were measured using the Crawford strand burning technique. It was stated that the catalytic effect of the F₂O₃ nanopowder on the burning rate is comparable with that of ferrocene.
Źródło:
Biuletyn Wojskowej Akademii Technicznej; 2009, 58, 4; 187-195
1234-5865
Pojawia się w:
Biuletyn Wojskowej Akademii Technicznej
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 21

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