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Tytuł:
A design approach based on a correlative relationship between maintainability and functional construction
Podejście projektowe oparte na korelacyjnym związku między konserwowalnością a funkcjonalną budową produktu
Autorzy:
Guo, C.
Lyu, C.
Chen, J.
Zhou, D.
Powiązania:
https://bibliotekanauki.pl/articles/301730.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:
maintainability design
correlative relationship
functional construction design factors
maintainability design factors
projektowanie konserwowalności
związek korelacyjny
czynniki konstrukcyjne dotyczące funkcjonalnej budowy
czynniki konstrukcyjne dotyczące konserwowalności
Opis:
As an important quality characteristic, maintainability is the ability of a product to be repaired efficiently and economically. Because it is mainly determined at the design stage, maintainability is mostly affected by the construction of a product. Traditional product design methods put more focus on design for function and production, neglecting design for maintainability, which causes a gap between functional construction design and maintainability design. The delay of maintainability design results in huge costs for design changes and even irrevocable design flaws. Because of the weak relationship between functional construction and maintainability in product design, the influence of maintainability design on the product is limited. To resolve this problem, this paper proposes a design approach considering the relationship between maintainability and functional construction. First, maintainability design factors (MDFs) and functional construction design factors (FCDFs) are defined and classified. Second, based on topology graphic theory, a correlative relationship model is constructed by graphically combining the MDFs and FCDFs into a network diagram. Third, to determine primary design factors, a quantization matrix is developed to perform importance evaluation of the correlative relationship. Finally, a practical case is studied by implementing the proposed approach for the lubrication system of an armoured vehicle. The results validate the effectiveness and feasibility of the approach.
Konserwowalność to ważna charakterystyka jakościowa, którą można zdefiniować jako możliwość wydajnej i ekonomicznej naprawy produktu. Ponieważ o konserwowalności produktu decydują głównie wybory dokonane na etapie projektowania, największy wpływ na nią ma budowa produktu. Tradycyjne metody projektowania produktów kładą większy nacisk na projektowanie funkcji i produkcji, zaniedbując projektowanie pod kątem łatwości konserwacji, co powoduje powstanie luki między projektowaniem funkcjonalnej budowy produktu a projektowaniem jego konserwowalności. Opóźnienie etapu projektowania konserwowalności generuje ogromne koszty związane z koniecznością zmian projektu i może nawet prowadzić do nieodwracalnych wad projektowych. Ze względu na słabą zależność między budową funkcjonalną a konserwowalnością w projektowaniu produktu, wpływ projektowania konserwowalności na produkt jest ograniczony. Aby rozwiązać ten problem, w niniejszej pracy zaproponowano podejście projektowe uwzględniające związek między konserwowalnością a budową funkcjonalną wyrobu. Po pierwsze, zdefiniowano i sklasyfikowano czynniki konstrukcyjne (projektowe) dotyczące konserwowalności (MDF) oraz czynniki konstrukcyjne związane z budową funkcjonalną produktu (FCDF). Po drugie, w oparciu o teorię graficznej reprezentacji topologii, zbudowano model zależności korelacyjnych między MDF i FCDF w postaci diagramu sieciowego. Po trzecie, w celu określenia podstawowych czynników konstrukcyjnych, opracowano macierz kwantyzacji, pozwalającą na ocenę ważności relacji korelacyjnych. Wreszcie, przeanalizowano przypadek układu smarowania pojazdu opancerzonego jako przykład zastosowania proponowanego podejścia w praktyce. Wyniki potwierdzają skuteczność omawianego podejścia oraz możliwość jego praktycznego wykorzystania.
Źródło:
Eksploatacja i Niezawodność; 2018, 20, 1; 115-124
1507-2711
Pojawia się w:
Eksploatacja i Niezawodność
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A stepwise ISO-based TQM implementation approach using ISO 9001:2015
Autorzy:
Chen, C.-K.
Anchecta, K.
Lee, J. -D.
Dahlgaard, J. J.
Powiązania:
https://bibliotekanauki.pl/articles/407353.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Total Quality Management
TQM
ISO QMS
ISO 9000
ISO 9001:2015
international standard
Opis:
The lack of an implementation roadmap always deters enterprises from choosing Total Quality Management (TQM) as its major management approach. This paper proposes a stepwise ISO-based TQM implementation approach which is based on the notion of the new threedimensional overall business excellence framework developed by Dahlgaard et al. [1]. The proposed approach consists of nine steps comprising three categories: “TQM faith building”, “TQM tools and techniques learning”, and “system development”. The steps in each of the three categories are arranged to span across the proposed nine-step approach. The ISO 9001:2015 standard is used as a case study to demonstrate the proposed approach. The ideas and benefits of the proposed approach are further discussed in relation to this illustration.
Źródło:
Management and Production Engineering Review; 2016, 7, 4; 65-75
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Afamin and adropin in patients with alcohol-induced liver cirrhosis
Autorzy:
Prystupa, A.
Kiciński, P.
Luchowska-Kocot, D.
Sak, J.
Prystupa, T.
Chen, K.-H.
Chen, Y.-H.
Panasiuk, L.
Załuska, W.
Powiązania:
https://bibliotekanauki.pl/articles/2081906.pdf
Data publikacji:
2018
Wydawca:
Instytut Medycyny Wsi
Tematy:
alcoholic liver cirrhosis
Adropin
Child-Pugh score
afamin
Opis:
The aim of the study was to determine serum concentrations of afamin and adropin in patients with alcoholic liver cirrhosis and to define their correlation with the stage of disease. The study included 99 patients with alcoholic cirrhosis from the region of Lublin, (Eastern Poland). Liver cirrhosis was diagnosed based on clinical features, history of heavy alcohol consumption, laboratory tests and abdominal ultrasonography. The control group consisted of 20 healthy individuals without liver disease who did not abuse alcohol. The serum afamin and adropin concentrations were determined using ELISA kits. The concentration of afamin was found to be significantly lower in patients with compensated alcoholic liver cirrhosis, i.e. P-Ch B (85.1±40.6 μg/ml) and P-Ch C (56.4±32.3 μg/ml) individuals, compared to the control group (135.9±43.6 μg/ml); p-value was <0.01 and <0.001, respectively. As far as adropin is concerned, a reverse relationship was demonstrated: the highest concentration was found in patients with P-Ch C (11.7±5.7 ng/ml) cirrhosis. Furthermore, the above concentration was significantly higher compared to patients with P-Ch A cirrhosis (7.2±2.8 ng/ml; p<0.05) and controls (7.5±2.6 ng/ml; p<0.05). The concentration of afamin decreases with the severity of alcoholic liver cirrhosis, which most likely results from impaired hepatic synthesis. Otherwise, the higher the stage of disease according to the Child-Pugh score, the higher the concentration of adropin.
Źródło:
Annals of Agricultural and Environmental Medicine; 2018, 25, 3; 527-531
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An application of feedback linearization to the tracking and almost disturbance decoupling control of nonlinear system with uncertainties
Autorzy:
Chen, C.-C.
Huang, Y.-C
Lin, W.-J.
Shen, D.-C.
Huang, L.-A.
Powiązania:
https://bibliotekanauki.pl/articles/970382.pdf
Data publikacji:
2007
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
almost disturbance decoupling
feedback linearizable
differential geometry approach
composite Lyapunov approach
Opis:
This paper studies the tracking and almost disturbance decoupling problem of nonlinear systems with uncertainties, based on the feedback linearization approach. The main contribution of this study is to construct a controller, under appropriate conditions, such that the resulting closed-loop system is valid for any initial condition and bounded tracking signal with the following characteristics: input-to-state stability with respect to disturbance inputs and almost disturbance decoupling, i.e., the influence of disturbances on the L2 norm of the output tracking error can be arbitrarily attenuated by changing some adjustable parameters. Two examples, which cannot be solved by the first paper on the almost disturbance decoupling problem, are proposed in this paper to exploit the fact that the tracking and the almost disturbance decoupling performances are easily achieved by the proposed approach. In order to demonstrate the practical applicability, the paper has investigated the AMIRA ball and beam system.
Źródło:
Control and Cybernetics; 2007, 36, 2; 385-403
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Antioxidant activity and mechanism in flower of Hylocereus undatus (Haw.) Britt. et Rose
Autorzy:
Li, X.
Gao, Y.
Han, W.
Lin, J.
Hu, Q.
Chen, D.
Powiązania:
https://bibliotekanauki.pl/articles/19838.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
Hylocereus undatus flower is commonly used as food or for medicinal purposes in south China. To study its antioxidant activity and mechanism we used antioxidant and chemical assays to compare two commercial samples from different locations (Shenjing, Qixing). The difference in antioxidant levels corresponded with differences in chemical content (including total phenolics, total flavonoids, kaempferol and quercetin) between Shenjing and Qixing. The antioxidant ability of H. undatus flower seems attributable to total phenolics (mainly total flavonoids). Kaempferol is one of the main bioactive components. H. undatus flower exerts its antioxidant effects through metal chelation and radical scavenging via hydrogen atom (H•) and electron (e) donation.
Źródło:
Acta Biologica Cracoviensia. Series Botanica; 2013, 55, 1
0001-5296
Pojawia się w:
Acta Biologica Cracoviensia. Series Botanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Catalytic decomposition of toluene over La1-xSr xMnO3/palygorskite synthesized catalysts
Autorzy:
Song, L.
Chen, T.
Chen, D.
Chen, Y.
Xie, J.
Liu, H.
Powiązania:
https://bibliotekanauki.pl/articles/207996.pdf
Data publikacji:
2013
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
catalysts
manganese
manganese oxide
toluene
transmission electron microscopy
X ray diffraction
Palygorskite
katalizatory
mangan
tlenek manganu
toluen
transmisyjna mikroskopia elektronowa
dyfrakcja promieniowania rentgenowskiego
Opis:
Palygorskite (PG) supported La1-xSrxMnO3 catalysts were fabricated by copreripitation. The catalysts were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), specific surface area (SSA) and H2 temperature programmed reduction (H 2-TPR). Catalytic activity for VOCs was examined by using toluene as a model compound. The results show that the surface area as well as mechanical strength of catalysts increase substantially after catalysts loaded in PG. XRD patterns show that after calcination at 700 0C, PG as a support in 9% LaMn03/PG and 9% La0.7Sr0.3MnO3/PG was transformed into amorphous phase and the morphology was not destroyed. It was well established that the main reductive components are factually Mn(III) or Mn(IV) oxides in catalysts based on the results of TPR. It was also found that Mn(IV) increases while Mn(III) reduces responding with the increasing amount of Sr. Toluene conversion rate of as-preparedμ% La1-xSr xMnO3/PG increases with the increasing values of x and μ when x=0-0.3 and μ = 3-9%. Toluene can be converted completely at 285 0C by 9% La0.7Sr0.3MnO3/PG catalyst while no significant change was observed after addition on the doping and loading amount of Sr. During a 100 h stability experiment of 9% La 0.7Sr0.3MnO3/PG catalyst, toluene removal was found to be above 95%.
Źródło:
Environment Protection Engineering; 2013, 39, 3; 31-42
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Design and Experiment on the Compact, Portable Pulse Forming Line
Autorzy:
Xia, L.
Shi, J.
Chen, D.
Zhang, H.
Zhang, L.
Deng, J.
Powiązania:
https://bibliotekanauki.pl/articles/1807991.pdf
Data publikacji:
2009-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
84.70.+p
77.90.+k
Opis:
Some research has been done on making the compact, portable pulse forming line. A kind of ceramic and a kind of newly developed composite polymer are both used as the dielectric of the planar pulse forming line. The ceramic's dielectric constant ranges from 200 to 600 and the composite polymer's dielectric constant ranges from 100 to 200. It is easier to manufacture the large composite polymer dielectric bulks than to manufacture the ceramic bulks. In the experiments, using the large composite polymer bulk as the dielectric, the planar Blumlein line generated the pulse up to 100 kV with duration 90 ns. Using the ceramic bulk as the dielectric, the planar line generated the voltage pulse up to 60 kV with duration 92 ns.
Źródło:
Acta Physica Polonica A; 2009, 115, 6; 1192-1193
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Detonation Reaction Characteristics for CL-20 and CL-20-based Aluminized Mixed Explosives
Autorzy:
Liu, D.
Chen, L.
Wang, C.
Wu, J.
Powiązania:
https://bibliotekanauki.pl/articles/358308.pdf
Data publikacji:
2017
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
detonation reaction zone
aluminum reaction
interfacial particle velocity
interferometry
Opis:
The interfacial particle velocities for CL-20 and CL-20-based aluminized mixed explosives were measured by interferometry in order to analyze the aluminum reactions in the latter. The reaction characteristics were obtained, as well as a better understanding of the effects of aluminum powder on the detonation reaction zone length. Two functions were used to fit the particle velocity-time profiles, and their intersection was the corresponding Chapman-Jouget (CJ) point. From these profiles, the detonation reaction zone length and the aluminum reaction were then analyzed. CL-20-based explosives have a short reaction time (48 ns for a high CL-20 content), while the reaction time of CL-20/Al explosives increased with the aluminum content and particle size. Micron-scale aluminum particles barely reacted in the CL-20 detonation reaction zone, but instead reacted with the detonation products after the CJ point. This reduced the detonation pressure; however, the aluminum reaction can slow down the decrease in particle velocities. The start times of small-particle aluminum reactions were earlier than those of the larger particles. The 2-3-μm aluminum particles start to react within 1 μs after the CJ point, while the 200-nm particles may start to react in the reaction zone.
Źródło:
Central European Journal of Energetic Materials; 2017, 14, 3; 573-588
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of ZnO, CuO, Au, and TiO2 nanoparticles on Daphnia magna and early life stages of zebrafish danio rerio
Autorzy:
Liu, J.
Fan, D.
Wang, L.
Shi, L.
Ding, J.
Chen, Y.
Shen, S.
Powiązania:
https://bibliotekanauki.pl/articles/207169.pdf
Data publikacji:
2014
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
metal oxides
titanium dioxide
nanoparticles
toxicity
zinc oxide
Daphnia magna
nanocząsteczki
tlenki metali
dwutlenek tytanu
toksyczność
tlenek cynku
rozwielitki
Opis:
The effects of four different kinds of nanoparticles (NPs), namely, CuO, ZnO, TiO2, and Au, of the sizes ranging from <20 nm to 50 nm on Daphnia magna, early life stage of zebrafish, and various enzymes have been investigated. The experimental results showed that the NPs inhibited both the body length and hatching rate of zebrafish larvae; the small nanoparticles exhibited more toxicity. In a 21 day chronic toxicity test, metal ions of higher concentrations significantly reduced the number of Daphnia magna offspring. Studies on enzyme activity showed that the NPs reduced the glutathione content and inhibited catalase and superoxide dismutase activities, resulting in shorter body length, lower hatching success, and lower reproduction of zebrafish larvae. Therefore, studies should focus more on the potential toxicity of smaller NPs.
Źródło:
Environment Protection Engineering; 2014, 40, 1; 139-149
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experimental Study of the Explosion of Aluminized Explosives in Air
Autorzy:
Chen, Y.
Xu, S.
Wu, D. J.
Liu, D. B.
Powiązania:
https://bibliotekanauki.pl/articles/358676.pdf
Data publikacji:
2016
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
explosion in air
aluminized explosives
boron powders
TNT equivalence
fireballs
Opis:
Piezoelectric gauges were used to measure the shock wave overpressure of aluminized explosives and of a TNT charge. An infrared thermal-imaging spectrometer was used to collect the infrared signatures produced by the explosion fireball when the examined explosives were detonated. The measurement of the infrared signatures was used to estimate the surface temperatures and the dimensions of the fireball. Two aluminized explosive compositions (RDX/Al/AP and RDX/Al/B/AP) have been analyzed. 500 g charges of the aluminized explosives were prepared and studied, and their TNT equivalences were calculated according to the experimental data and the explosion law. The highest surface temperatures of the fireballs of these aluminized explosives were up to 1600 °C, which was higher than that of the TNT charge. In the region of the highest surface temperature above 700 °C, the duration for the composition RDX/Al/AP was about 232 ms (2.73 times more than TNT), whilst RDX/Al/B/AP was about 360 ms. The fireballs obtained from the explosion of these aluminized explosives had larger dimensions than that of TNT, especially when the surface temperature was above 1000 °C. The test results indicate that the addition of boron powders to aluminized explosives is a good way to enhance their blast effect, to improve the temperature of the explosion field and to prolong the duration of the higher temperature.
Źródło:
Central European Journal of Energetic Materials; 2016, 13, 1; 117-134
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Generation of chirped microwave signal with any central frequency based on a nonuniformly spaced finite impulse response filter
Autorzy:
Chen, D.
Wang, R.
Pu, T.
Xiang, P.
Fang, T.
Zheng, J.
Xiong, J.
Powiązania:
https://bibliotekanauki.pl/articles/174334.pdf
Data publikacji:
2016
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
microwave photonics
microwave photonic filter
chirped microwave signal
dual drive Mach–Zehnder modulator
Opis:
A novel optical approach to generating a chirped microwave signal by using a nonuniformly spaced finite impulse response filter is proposed and demonstrated. In this scheme, a narrowband Gaussian pulse is used as the original chirped-free signal, which is easy to be acquired. To eliminate the need of a wideband chirped-free signal, a mixer and a radio frequency signal are used to up-convert the spectrum of the original Gaussian signal. Therefore, the required frequency response can be calculated and reconstructed by a finite impulse response filter with nonuniformly spaced taps. Besides, a dual drive Mach–Zehnder modulator is used to realize single sideband modulation of the chirpedfree signal. Thus, the transfer function induced by the fiber dispersion is eliminated and the chirped microwave signal with any central frequency can be generated. In this paper, a design example of a filter with a central frequency of 10GHz is provided, and generation of the target chirped microwave signal is also demonstrated by numerical simulations.
Źródło:
Optica Applicata; 2016, 46, 3; 399-408
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
High-Pressure Studies of Semiconductors in the Far-Infrared: Donor States in Quasi-2D
Autorzy:
Weinstein, B. A.
Tischler, J. G.
Chen, R. J.
Nickel, H. A.
McCombe, B. D.
Dzyubenko, A. B.
Sivachenko, A.
Powiązania:
https://bibliotekanauki.pl/articles/2014129.pdf
Data publikacji:
2000-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
78.66.Fd
73.20.Dx
73.20.Hb
Opis:
We review recent experimental advances by the Buffalo group in performing far-infrared magnetospectroscopy under fine tuning of applied high hydrostatic pressure. Experiments are reported for the effects of pressure on Si donors in modulation doped GaAs/AlGaAs quantum wells. We clearly observe pressure-mediated competition between free (i.e., Landau level) and bound electron states - the latter arising from both neutral (D$\text{}^{0}$) and charged (D$\text{}^{-}$) donor species. With increasing pressure, there is a progression of the observed spectra from being dominated by cyclotron resonance and the D$\text{}^{-}$ singlet (or singlet-like bound magnetoplasmon) transitions, to showing the D$\text{}^{0}$ 1s → 2p$\text{}^{+}$ line. The main reason for this evolution is the decrease in electrons due to the crossover of the Si levels associated with the Γ (well) and X (barrier) conduction minima. Indeed, for pressures above 30 kbar the Γ(well)-X(barrier) crossover quenches all the transitions. However, we find strong evidence that electrons are independently lost to a trap, which becomes active several kbar below this crossing. A possible candidate for this trap is residual Se impurities in the barriers. We present the results of detailed numerical calculation which are found to agree very well with the measured field dependencies of the cyclotron resonance, D$\text{}^{0}$ and D$\text{}^{-}$ transition energies. In the sample with the highest doping, a new transition is observed for fields and pressures above 7.5 T and 5 kbar. Reasons for this apparent anomaly are discussed.
Źródło:
Acta Physica Polonica A; 2000, 98, 3; 241-257
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multi-Objective Optimization of Acoustical Properties of PU-Bamboo-Chips Foam Composites
Autorzy:
Jiang, Y.
Chen, S.
Wang, D.
Chen, J.
Powiązania:
https://bibliotekanauki.pl/articles/177709.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
vehicle sound package
sound absorption coefficient
transmission loss
Taguchi method
Opis:
In this study, an effective optimization approach was proposed to improve acoustical behaviors of PU foams. The important parameters of PU foams: content of water, silicone oil and catalyst A1 were chosen and their effects on sound absorption coefficient and transmission loss of PU foams were studied by using Taguchi methods. In addition, bamboo chips were incorporated into PU foams as fillers to improve the acoustical properties of PU foams. Four controlled factors: the content of water, silicone oil, catalyst A1 and bamboo chips with three levels for each factor were chosen and Taguchi method based on orthogonal array L9 (34) was employed to conduct the experiments. Based on the results of Taguchi’s orthogonal array L9 (34), signal-to noise (S/N) analysis was used and developed to determine an optimal formulation of PU-bamboo-chips foam composites.
Źródło:
Archives of Acoustics; 2017, 42, 4; 707-714
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optical generation of ultra-wideband signals with a reconfigurable spectral notch-band
Autorzy:
Xiang, P.
Chen, Y.
Chen, D.
Zhao, J.
Powiązania:
https://bibliotekanauki.pl/articles/174353.pdf
Data publikacji:
2014
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
ultra-wideband (UWB)
ultra-wideband over fiber
notch-band
interference avoidance
Opis:
A novel method for optical generation of ultra-wideband signals with a reconfigurable spectral notch-band is proposed. In the proposed system, ultra-wideband signals are generated in the optical domain and an optical tunable delay line is deployed to introduce a notch-band to the spectral profile of the generated ultra-wideband signals, which can effectively avoid the signal interference between ultra-wideband signals and pre-planned narrowband wireless signals used in wireless local area networks (WLAN). A theoretical model describing the proposed system is derived; the optical generation and fiber transmission of ultra-wideband signals with a reconfigurable notch-band are demonstrated via computer simulations.
Źródło:
Optica Applicata; 2014, 44, 3; 411-419
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
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