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Wyświetlanie 1-15 z 118
Tytuł:
On the inverse problems of Lyapunov theorem and Riccati equation
Autorzy:
Sun, Y.
Powiązania:
https://bibliotekanauki.pl/articles/205963.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
teoria systemu liniowego
zagadnienie odwrotne
inverse problems
linear systems theory
Opis:
In this note, the inverse problem of Lyapunov theorem is reconsidered and the inverse problem of Riccati equation is introduced. Simple proofs are provided to guarantee the solution of such problems.
Źródło:
Control and Cybernetics; 2001, 30, 2; 227-230
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Less conservative results for the exponential stability of uncertain time-delay systems
Autorzy:
Sun, Y. J.
Powiązania:
https://bibliotekanauki.pl/articles/970980.pdf
Data publikacji:
2005
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
delay-independent criterion
exponential stability
time-delay systems
Opis:
In this paper, global exponential stability of a class of uncertain systems with multiple time delays is investigated. Simple delay-independent criterion is derived to guarantee the global exponential stability of such systems. The main result is sharper than the recent result reported in the literature. Two numerical examples are also provided to illustrate the main result.
Źródło:
Control and Cybernetics; 2005, 34, 4; 1045-1055
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The eigenvalue derivatives of linear damped systems
Autorzy:
Sun, Y.-J.
Powiązania:
https://bibliotekanauki.pl/articles/970588.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
pochodna wartości własnej
derivatives of eigenvalues
linear damped systems
Opis:
In this note, the derivatives of eigenvalues with respect to the model parameters for linear damped systems is proposed by means of kronecker algebra and matrix calculus. A numerical example is also provided to illustrate the use of the main result.
Źródło:
Control and Cybernetics; 2003, 32, 4; 735-741
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A simple criterion for the global exponential stability of uncertain T-S fuzzy singularly perturbed discrete-time systems
Autorzy:
Sun, Y. J.
Powiązania:
https://bibliotekanauki.pl/articles/205643.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
Takagi-Sugeno fuzzy system
singularly perturbed systems
uncertain systems
Opis:
In this paper, the global exponential stability for a class of uncertain Takagi-Sugeno (T-S) fuzzy singularly perturbed systems is investigated. Based on time-domain approach with difference inequality technique, a simple criterion is derived to guarantee the global exponential stability of such systems. The upper bound of the singular perturbation parameter is also provided by estimating the unique positive zero of specific function. Finally, two numerical examples are given to demonstrate the feasibility and effectiveness of the obtained result.
Źródło:
Control and Cybernetics; 2011, 40, 1; 59-71
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Szacowanie współczynników interakcyjnych do analizy uszkodzeń interakcyjnych
Estimating interactive coefficients for analysing interactive failures
Autorzy:
Sun, Y.
Ma, L.
Powiązania:
https://bibliotekanauki.pl/articles/301078.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:
uszkodzenia zależne
uszkodzenia interakcyjne
współczynniki interakcyjne
niezawodność
system złożony
dependent failures
interactive failures
interactive coefficients
reliability
complex system
Opis:
Środki techniczne to często systemy złożone. W złożonym systemie, między komponentami często zachodzą interakcje uszkodzeniowe prowadzące do uszkodzeń interakcyjnych. Występowanie w systemie uszkodzeń interakcyjnych może prowadzić do wzmożonego prawdopodobieństwa uszkodzenia. Stąd też, przy projektowaniu i eksploatacji złożonych systemów inżynieryjnych, może zaistnieć potrzeba wzięcia pod uwagę uszkodzeń interakcyjnych. Odnosząc się do tego zagadnienia, Sun i in. stworzyli analityczny model uszkodzeń interakcyjnych. W modelu tym stopień interakcji między dwoma komponentami jest wyrażany przez współczynniki interakcyjne. Aby można było użyć tego modelu do analizy uszkodzeń należy więc oszacować współczynniki interakcyjne. Jednakże nie opisano jeszcze metod szacowania współczynników interakcyjnych. Aby wypełnić tę lukę, w niniejszej pracy zaprezentowano pięć metod szacowania współczynników interakcyjnych, wliczając w to metodę probabilistyczną, metodę analizy opartej na danych o uszkodzeniach, eksperymentalną metodę laboratoryjną, metodę opartą na mechanizmie interakcji między uszkodzeniami oraz metodę oceny eksperckiej. Podano przykłady pokazujące zastosowania proponowanych metod, a także dokonano porównania między nimi.
Engineering assets are often complex systems. In a complex system, components often have failure interactions which lead to interactive failures. A system with interactive failures may lead to an increased failure probability. Hence, one may have to take the interactive failures into account when designing and maintaining complex engineering systems. To address this issue, Sun et al have developed an analytical model for the interactive failures. In this model, the degree of interaction between two components is represented by interactive coefficients. To use this model for failure analysis, the related interactive coefficients must be estimated. However, methods for estimating the interactive coefficients have not been reported. To fill this gap, this paper presents five methods to estimate the interactive coefficients including probabilistic method; failure data based analysis method; laboratory experimental method; failure interaction mechanism based method; and expert estimation method. Examples are given to demonstrate the applications of the proposed methods. Comparisons among these methods are also presented.
Źródło:
Eksploatacja i Niezawodność; 2010, 2; 67-72
1507-2711
Pojawia się w:
Eksploatacja i Niezawodność
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tubular shell infestations in some Mississippian spirilophous brachiopods
Autorzy:
Balinski, A.
Sun, Y.
Powiązania:
https://bibliotekanauki.pl/articles/20057.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
paleontology
tubular shell
shell
infestation
Mississippian brachiopod
spirilophous brachiopod
brachiopod
Brachiopoda
Spiriferida
Spiriferinida
biotic interaction
endosymbiont
Muhua Formation
China
Opis:
Evidence of brachiopod shell infestation by tube dwelling parasitic–commensal organisms is very rare in the fossil record. The oldest record of this kind of biotic interaction is known as Eodiorygma acrotretophilia from the Early Cambrian phosphatic acrotretoid Linnarsonia. The youngest evidence of parasitic infestation was documented in the Early Cretaceous rhynchonellide Peregrinella multicarinata. Two other records of vermiform tubes inside brachiopod shells come from the Devonian. These are Diorygma atrypophilia, infesting Givetian atrypide shells, and Burrinjuckia spiriferidophilia, found in some Emsian spiriferides. Here we describe the fifth record of this kind of infestation for which a name Haplorygma dorsalis ichnogen. et ichnosp. nov. is proposed. The tubular infestation structure was revealed in two silicified dorsal valves of spirolophous brachiopods found in the Mississippian Muhua Formation of the Southern China. The affinity of the tube−dwelling organism is rather enigmatic, but its annelid relationship and kleptoparasitic nature seems highly probable. In addition, the phoronid affinity of Diorygma is here questioned.
Źródło:
Acta Palaeontologica Polonica; 2010, 55, 4
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Silicified Mississippian brachiopods from Muhua, Southern China: Lingulids, craniids, strophomenids, productids, orthotetids, and orthids
Autorzy:
Sun, Y
Balinski, A.
Powiązania:
https://bibliotekanauki.pl/articles/22016.pdf
Data publikacji:
2008
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
paleontology
China
Orthida
Craniida
Brachiopoda
Mississippian brachiopod
Carboniferous
Productida
Strophomenida
Orthotetida
silicification
Lingulida
brachiopod
Muhua
Opis:
This paper describes 37 species (4 new) belonging to 27 genera (1 new), 14 families, and 6 orders (Lingulida, Craniida, Strophomenida, Productida, Orthotetida, and Orthida) of silicified brachiopods from the middle Tournaisian (Mississippian, lower Carboniferous) of the vicinity of Gedongguan and Muhua villages (southern China). All specimens come from acid etching of detrital and oolitic limestone lenses scattered within grey to black laminated basinal micrite and marl of the Muhua Formation. The formation, which attains about 1–10 meters in thickness, is dated to the Siphonodella crenulata Zone. More than 10,000 silicified brachiopod specimens belonging to about 70 species were recovered from over 900 kg of the sampled limestone lenses, the most diverse brachiopod fauna of that age. The characteristic feature of the studied material is the prevailing disarticulation and fragmentation of skeletal parts due to their down slope transportation into a deeper water environment. Within Lingulida, one linguloid and one discinoid species are described. Craniida are represented by five species including Nematocrania pilea sp. nov. Strophomenida are represented by fragmentarily preserved specimens belonging to one species. The most diverse are Productida, which are represented by 7 chonetidine and 12 productidine species; new are Subglobosochonetes gedongguanensis sp. nov. and Globosochonetes gracilis sp. nov. New data on morphology of larval stage of Argentiproductus margaritaceus and its mode of attachment are presented. Orthotetida is represented by 5 species including Lamellispina spinosa gen. et sp. nov. Orthida is represented by 3, mostly cosmopolitan species. This study of a middle Tournaisian brachiopod fauna from Muhua, together with published data on the Mississippian brachiopods from other regions of South China, allow to study the Devonian–Carboniferous biotic crisis and post−crisis recovery.
Źródło:
Acta Palaeontologica Polonica; 2008, 53, 3
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chondrichthyan remains from the Lower Carboniferous of Muhua, Southern China
Autorzy:
Ginter, M.
Sun, Y.
Powiązania:
https://bibliotekanauki.pl/articles/22216.pdf
Data publikacji:
2007
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Carboniferous
China
Chondrichthyes
Elasmobranchii
Euchondrocephali
Lower Carboniferous
Muhua
chondrichthyan
remains
tooth
Tournaisian
paleontology
systematics
morphology
Opis:
The shallow water assemblage of chondrichthyan microremains, teeth, tooth plates and scales, from the middle Tournaisian (Mississippian) of the vicinity of Muhua village, Guizhou province, southern China, is thus far the richest and most diverse association of this age collected from a single locality and horizon, and represents a chondrichthyan community very restricted in time and space. It was recovered from a small bioclastic limestone lens, MH−1, occurring among basinal marls near the base of the Muhua Formation, and dated as to the Siphonodella crenulata conodont Zone. The majority of the fauna presented here consists of teeth with euselachian−type bases and crushing crowns belonging to bottom−dwelling durophagous chondrichthyans, most probably feeding on shelly invertebrates such as the abundant brachiopods. We assigned most of these teeth to Euselachii (six species, among them Cassisodus margaritae gen. et sp. nov.), Petalodontiformes (two species), Holocephali (five species), and Euchondrocephali incertae sedis (Cristatodens sigmoidalis gen. et sp. nov.). We also identified primitive polycuspid, clutching teeth representing Phoebodontiformes (Thrinacodus bicuspidatus sp. nov.), Symmoriiformes, and Ctenacanthiformes. The scales are typical growing, compound forms of the protacrodont, ctenacanth, and hybodont types. Two problematic denticulated plates were found, one of which resembles mandibular or palatal plates of Sibyrhynchus (Iniopterygii). Several of the identified chondrichthyan taxa have hitherto been known only from Laurussia, especially from the British Isles and central USA. In particular we found the first record of Chondrenchelyssp. and Diclitodus denshumani outside their type locality. Th. bicuspidatus sp. nov., also known from Nevada, Iran, and NW Australia, appears to be a cosmopolitan, middle Tournaisian index fossil.
Źródło:
Acta Palaeontologica Polonica; 2007, 52, 4
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Silicified Mississippian brachiopods from Muhua, southern China: Rhynchonellides, athyridides, spiriferides, spiriferinides, and terebratulides
Autorzy:
Sun, Y.
Balinski, A.
Powiązania:
https://bibliotekanauki.pl/articles/22794.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Opis:
The second part of the monograph of the silicified brachiopod fauna from the Muhua Formation concludes with the descriptions of 36 species belonging to 32 genera and 22 families. Eighteen species are reported in open nomenclature. Two new rhynchonellide species are described: Coledium bruntoni sp. nov. and Pleuropugnoides calcaris sp. nov. The described brachiopod fauna is dominated by spiriferides (16 species), rhynchonellides (9 species), and athyridides (7 species), while spiriferinides and terebratulides are represented by 1 and 3 species, respectively. The brachiopod fauna from the Muhua Formation is characterised by remarkably high species diversity. Together with those species described in the first part of the monograph the fauna includes 69 species. The study of the brachiopod faunal dynamics during the late Famennian–late Tournaisian in southern China reveals that after a decline in the generic diversity at the Devonian–Carboniferous boundary (D–C boundary event), the Early Tournaisian brachiopod fauna shows slight impoverishment. In the middle Tournaisian the brachiopod fauna from South China shows an explosive increase in diversity on generic level which is well exemplified by the material from Muhua. The brachiopod fauna from the Muhua Formation represents a fully recovered high diversity fauna consisting of forms representing a wide spectrum of attachment strategies as well as highly specialised forms (e.g., micromorphs) adapted to special kinds of ecological niches. Numerous evidence of the biotic interaction between brachiopods and other co−occurring fauna have been revealed in the material from Muhua. These are drill holes of predatory origin, borings made on dead shells as post−mortem infestation, shell damages and malformations, and parasitic infestations.
Źródło:
Acta Palaeontologica Polonica; 2011, 56, 4
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Preservation of soft tissues in an Ordovician linguloid brachiopod from China
Autorzy:
Balinski, A.
Sun, Y.
Powiązania:
https://bibliotekanauki.pl/articles/21359.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
preservation
soft tissue
Ordovician
linguloid brachiopod
brachiopod
Leontiella
fauna
geographic location
shell
Hubei province
China
Opis:
The findings of preserved soft body parts including pedicle in the linguloid brachiopods are extremely rare in the fossil record of which the early Cambrian Chengjiang (southern China) and Burgess Shale (British Columbia) faunas are the most important. However, these characteristic Cambrian soft−bodied faunas largely disappeared from the fossil re− cord well before the end of the Cambrian. Here we describe the first record of the pedicle in a linguloid brachiopod from the post−Cambrian strata, preserved with remarkable fidel− ity. Contrary to the Chengjiang and Burgess Shale−type fau− nas which are commonly preserved as essentially two−di− mensional aluminosilicate or degraded organic carbon films or pyritized compressed fossils, the specimens now recov− ered from the Ordovician of China show a three−dimen− sional, pyritized pedicle with preserved external morphol− ogy, in detail. The presence of streamlined shell shape and burrowing shell sculpture in our specimens supports an as− sumption for infaunal mode of life of the genus. Since all linguloid brachiopods of the early Cambrian are inter− preted as epifaunal or semi−infaunal, it seems that the here described Ordovician linguloid is the oldest representative of fully infaunal brachiopods. Apparently, the long vermi− form and flexible linguloid pedicle has appeared as a func− tionally optimized construction.
Źródło:
Acta Palaeontologica Polonica; 2013, 58, 1
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Relationship between the impedance of a multi-pin probe and soil water content
Autorzy:
Sun, Y.
Kromer, K.H.
Powiązania:
https://bibliotekanauki.pl/articles/24149.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
soil water
relationship
dielectrical constant
impedance
multi-pin probe
water content
Źródło:
International Agrophysics; 2003, 17, 1
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Helicosporidia: a genomic snapshot of an early transition to parasitism
Autorzy:
Sun, Y.
Pombert, J.-F.
Powiązania:
https://bibliotekanauki.pl/articles/58197.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
Helicosporidium
green alga
alga
comparative genomics
entomopathogen
parasitism
parasite
invertebrate
Opis:
Helicosporidia are gut parasites of invertebrates. These achlorophyllous, non-photosynthetic green algae are the first reported to infect insects. Helicosporidia are members of the green algal class Trebouxiophyceae and are further related to the photosynthetic and non-photosynthetic genera Auxenochlorella and Prototheca, respectively, the latter of which can also turn to parasitism under opportunistic conditions. Molecular analyses suggest that Helicosporidia diverged from other photosynthetic trebouxiophytes less than 200 million years ago and that its adaptation to parasitism is therefore recent. In this minireview, we summarize the current knowledge of helicosporidian genomics. Unlike many well-known parasitic lineages, the Helicosporidium sp. organelle and nuclear genomes have lost surprisingly little in terms of coding content aside from photosynthesis-related genes. While the small size of its nuclear genome compared to other sequenced trebouxiophycean representatives suggests that Helicosporidium is going through a streamlining process, this scenario cannot be ascertained at this stage. Genome expansions and contractions have occurred independently multiple times in the green algae, and the small size of the Helicosporidium genome may reflect a lack of expansion from a lean ancestor state rather than a tendency towards reduction.
Źródło:
Acta Societatis Botanicorum Poloniae; 2014, 83, 4
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of the Thermal Treatment on the Microstructure and Magnetic Property of $Fe_{68}Zr_{20}B_{12}$ Alloy Prepared by Mechanical Alloying
Autorzy:
Sun, Y.
Yu, W.
Hua, Z.
Powiązania:
https://bibliotekanauki.pl/articles/1505353.pdf
Data publikacji:
2011-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
68.37.Lp
61.05.Qr
Opis:
$Fe_{68}Zr_{20}B_{12}$ amorphous alloy prepared by mechanical alloying technique of 60 h of duration was annealed at different temperatures (420-720°C) during 1 h. Microstructure and magnetic property of as-milled and annealed alloy were investigated by X-ray diffraction, transmission electron microscopy, the Mössbauer spectroscopy and vibrating sample magnetometer techniques. $Fe_{68}Zr_{20}B_{12}$ powders milled during 60 h exhibit amorphous character. After annealing at 420°C, α-Fe phase precipitates from amorphous matrix. Transmission electron microscopy analysis shows the nucleation and growth of α-Fe grains. The Mössbauer results of the annealed alloy at 670°C show that the $Fe_3B$ phase precipitates already and there is still remaining amorphous phase. Coercivity increases with increasing annealing temperature, which is closely related to the microstructures after annealing.
Źródło:
Acta Physica Polonica A; 2011, 119, 3; 374-377
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of peak-aged heat treatment on corrosion behavior of the AA6063 alloy containing Al3Ti
Wpływ obróbki cieplnej na korozje stopów AA6063 zawierajacych Al.3Ti
Autorzy:
Cevik, E.
Sun, Y.
Ahlatci, H.
Powiązania:
https://bibliotekanauki.pl/articles/355080.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
obróbka cieplna
właściwości korozyjne
stopy aluminium
non ferrous metals and alloys
casting
corrosion
microstructure
Opis:
The purpose of this study is to analyse the microstructure and corrosion properties of homogenised and aged AA 6063 aluminium alloys, containing up to 2% Ti, after the conventional casting technique. The microstructure of the homogenised and aged alloys was examined using an optic microscope, and scanning electron microscope. The micro-hardness test was used for the hardness measurements of the investigated alloys. Corrosion tests were performed by suspending samples of certain sizes into 30 gr/l NaCl + 10 ml/l HCl solutions, measuring the mass loss; potentiodynamic polarisation measurements were carried out in the same solution. The microstructure characterization of the investigated alloys shows the Al (matrix), non-shaped dark globular grey-coloured phase and rod-shaped phases formed at the grain boundaries. The non-shaped dark grey-coloured phase is Mg2Si. The rod-shaped phase, formed in the microstructure of the Ti-added AA 6063 alloys, is Al3Ti. The Ti content of the alloy increases, the Al3Ti phase tends to elongate and become plated. The results of the corrosion tests proved that the corrosion rate decreased in alloys containing less than 1% Ti, and the rate of corrosion increased in alloys containing more than 1% Ti, regardless of whether the alloys were homogenised and aged. Another observation was that aging heat treatment improved corrosion resistance.
Celem niniejszej pracy jest analiza mikrostruktury i właściwości korozyjnych poddanych obróbce cieplnej stopów aluminium AA 6063, zawierających do 2% Ti, po odlewaniu konwencjonalnym. Mikrostrukturę homogenizowanych stopów zbadano za pomocą mikroskopii optycznej i skaningowej mikroskopii elektronowej. Test mikrotwardości zastosowano do pomiaru twardości badanych stopów. Badania korozyjne przeprowadzono poprzez zawieszenie próbki o określonych rozmiarach w roztworze 30 gr/l NaCl + 10 ml/l HCl i pomiar ubytku masy; pomiary potencjo-dynamicznej polaryzacji zostały przeprowadzone w tym samym roztworze. Charakterystyka mikrostruktury badanych stopów pokazuje matryce Al; ciemnoszare, nieregularne wydzielenia fazy Mg2Si; oraz na granicach ziaren pręcikowe wydzielenia fazy Al3Ti, obecne w mikrostrukturze stopów AA 6063 z dodatkiem Ti. Ze wzrostem zawartości Ti, wydzielenia fazy Al2Ti stają się wydłużone i płytkowe. Wyniki testów korozyjnych wykazały, że szybkość korozji spadła w stopach zawierających mniej niż 1% Ti, a wzrosła w stopach zawierających więcej niż 1% Ti, niezależnie od tego, czy stopy były homogenizowane i starzone. Zaobserwowano, że obróbka cieplna podwyższa odporność stopów na korozję.
Źródło:
Archives of Metallurgy and Materials; 2012, 57, 2; 469-477
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kinetic modelling of NO heterogeneous radiation-catalytic oxidation on the TiO2 surface in humid air under the electron beam irradiation
Autorzy:
Nichipor, H.
Sun, Y.
Chmielewski, A. G.
Powiązania:
https://bibliotekanauki.pl/articles/148642.pdf
Data publikacji:
2017
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
electron beam
catalyst
reaction kinetics
NOx removal
irradiation
modelling
Opis:
Theoretical study of NOx removal from humid air by a hybrid system (catalyst combined with electron beam) was carried out. The purpose of this work is to study the possibility to decrease energy consumption for NOx removal. The kinetics of radiation catalytic oxidation of NO on the catalyst TiO2 surface under electron beam irradiation was elaborated. Program Scilab 5.3.0 was used for numerical simulations. Influential parameters such as inlet NO concentration, dose, gas flow rate, water concentration and catalyst contents that can affect NOx removal efficiency were studied. The results of calculation show that the removal effiiency of NOx might be increased by 8–16% with the presence of a catalyst in the gas irradiated field.
Źródło:
Nukleonika; 2017, 62, 3; 235-240
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 118

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