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Tytuł:
Theoretical Profile of Ring-Spun Slub Yarn and its Experimental Validation
Teoretyczne oznaczenie geometrii fantazyjnej przędzy obrączkowej typu slub i weryfikacja eksperymentalna
Autorzy:
Ma, C Q
Zhou, B M
Liu, Y
Hu, C S
Powiązania:
https://bibliotekanauki.pl/articles/232346.pdf
Data publikacji:
2013
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
Tematy:
slub yarn
mathematical model
slub profile
slub length
basic yarn length
przędza obrączkowa typu slub
model matematyczny
profil slub
długość slub
podstawowa długość przędzy
Opis:
A mathematical model for the yarn count of ring-spun slub yarn was established to predict the yarn profile based on process parameters such as the fibre length, the velocities of rollers and the time of over-feeding. The theoretical study shows that the slub length depends mostly on the process parameters above. The actual slub length is a fibre length greater than the slub length designed, and the actual length of basic yarn is a fibre length less than the length of basic yarn designed. The validity of the model was then verified using four sets of experiments. The experimental results agreed well with the model predictions and showed that the present model had high prediction accuracy, which may aid in the design and production of a desired slub yarn with controlling spinning parameters.
Model matematyczny masy liniowej przędzy obrączkowej typu slub został wyznaczony w celu określenia geometrii przędzy na podstawie parametrów procesu, takich jak długość włókien, prędkości rolek i wielkości naddatku. Badania teoretyczne wskazują, że długość odcinków przędzy typu slub zależy głównie od powyżej wymienionych parametrów procesu. W artykule podano właściwości zależności teoretycznych i rzeczywistych dla przędzy fantazyjnej. Prawidłowość tego modelu została następnie poddana weryfikacji przy użyciu cztery zestawów eksperymentalnych o zróżnicowanych warunkach. Wyniki badań eksperymentalnych potwierdziły przewidywania modelu i pokazały, że obecny model zapewnia wysoką dokładność przewidywania i dzięki temu ułatwia projektowanie i produkcję określonych włókien fantazyjnych.
Źródło:
Fibres & Textiles in Eastern Europe; 2013, 1 (97); 29-34
1230-3666
2300-7354
Pojawia się w:
Fibres & Textiles in Eastern Europe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The cysteine-rich receptor-like kinase family in Arabidopsis – a phenotypic framework for stress responses and ROS signaling
Autorzy:
Bourdais, G.
Burdiak, P.
Gauthier, A.
Nitsch, L.
Rayapuram, C.
Salojarvi, J.
Tri Anggoro, D.
Glow, D.
Zhou, J.
Kaufholdt, D.
Oracz, K.
Idanheimo, N.
Willem Borst, J.
Collinge, D.B.
Karpinski, S.
L yngkjaer, M.F.
Robatzek, S.
Kangasjarvi, J.
Wrzaczek, M.
Powiązania:
https://bibliotekanauki.pl/articles/79974.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
receptor-like kinase
cysteine
Arabidopsis
reactive oxygen species
stress response
signalling
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sea wave energy converter - WAVE DRAGON MW for few megawatts power range
Przekształtnik energii fal morskich MW WAVE Dragon na poziomie mocy w zakresie kilku megawatów
Autorzy:
Kaźmierkowski, M.
Jasiński, M.
Malinowski, M.
Płatek, T.
Styński, S.
Antoniewicz, P.
Kołomyjski, W.
Świerczyński, D.
Soerensen, H. C.
Friis-Madsen, E.
Christiansen, L.
Knapp, W.
Zhou, Z.
Igic, P.
Powiązania:
https://bibliotekanauki.pl/articles/159473.pdf
Data publikacji:
2007
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Elektrotechniki
Tematy:
energia odnawialna
energia fal morskich
przekształtnik energoelektroniczny
generatory
renewable energy
energy from sea waves
power electronics converters
generators
Opis:
The paper has as an objective to combine and disseminate a brief knowledge on generators and power electronics for Wave Dragon MW (WDMW) Power Take Off system. Wave Dragon MW captures power from sea waves by means of low-head turbines and converts it into rotating mechanical power. In recent years because of energy saving problem on almost whole world power electronics and electric machines as well as renewable energy market has been intensively developed. Problems which can appear in conversion mechanical power to electrical power in WDMW can be expected to be similar as in wind turbine. Therefore, state of the art briefly can base on state of the art for wind turbines. However, subject of the mechanical energy conversion from sea waves to electrical energy is not well identified and further research should be curried out.
Artykuł ma na celu zebranie i przedstawienie podstawowych informacji na temat przekształtnika energii fal morskich Wave Dragon MW (WDMW). Ponadto również wstępne wyniki symulacyjne zespołu generator-przekształtnik energoelektroniczny - sieć.
Źródło:
Prace Instytutu Elektrotechniki; 2007, 231; 5-16
0032-6216
Pojawia się w:
Prace Instytutu Elektrotechniki
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Restructuring of a zooplankton community by perturbation from a wind-forced coastal jet
Autorzy:
Pedersen, O.-P.
Tande, K.S.
Li, C.
Zhou, M.
Powiązania:
https://bibliotekanauki.pl/articles/47789.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
zooplankton
filament
intrusion
restructuring
mesoscale
perturbation
coastal region
Norway
transient wind
saline water
equivalent spherical diameter
Opis:
The impact of transient wind events on an established zooplankton community was observed during a field survey in a coastal region off northern Norway in May 2002. A transient wind event induced a coastal jet/filament intrusion of warm, saline water into our survey area where a semi-permanent eddy was present. There was an abrupt change in zooplankton community structure within 4–7 days of the wind event, with a change in the size structure, an increase in lower size classes less than 1 mm in equivalent spherical diameter (ESD) and a decrease in larger size classes greater than 1.5 mm in ESD. The slope of zooplankton biovolume spectra changed from −0.6 to −0.8, consistent with the size shifting towards smaller size classes. This study shows that even well established zooplankton communities are susceptible to restructuring during transient wind events, and in particular when wind forcing induces horizontal currents or filaments.
Źródło:
Oceanologia; 2010, 52, 3; 473-497
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reconstruction algorithm for obtaining the bending deformation of the base of heavy-duty machine tool using inverse Finite Element Method
Autorzy:
Liu, M.
Zhang, X.
Song, H.
Wang, J.
Zhou, S.
Powiązania:
https://bibliotekanauki.pl/articles/221566.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
inverse Finite Element Method
bending deformation
heavy-duty machine tool
reconstruction algorithm
statically indeterminate structure
Opis:
The field of mechanical manufacturing is becoming more and more demanding on machining accuracy. It is essential to monitor and compensate the deformation of structural parts of a heavy-duty machine tool. The deformation of the base of a heavy-duty machine tool is an important factor that affects machining accuracy. The base is statically indeterminate and complex in load. It is difficult to reconstruct deformation by traditional methods. A reconstruction algorithm for determining bending deformation of the base of a heavy-duty machine tool using inverse Finite Element Method (iFEM) is presented. The base is equivalent to a multi-span beam which is divided into beam elements with support points as nodes. The deflection polynomial order of each element is analysed. According to the boundary conditions, the deformation compatibility conditions and the strain data measured by Fiber Bragg Grating (FBG), the deflection polynomial coefficients of a beam element are determined. Using the coordinate transformation, the deflection equation of the base is obtained. Both numerical verification and experiment were carried out. The deflection obtained by the reconstruction algorithm using iFEM and the actual deflection measured by laser displacement sensors were compared. The accuracy of the reconstruction algorithm is verified.
Źródło:
Metrology and Measurement Systems; 2018, 25, 4; 727-741
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pharmacokinetics of the recombinant ovine interferon-tau in lambs
Autorzy:
Zhao, J.
Yu, H.Y.
Zhao, Y.
Li, S.Q.
Fu, X.L.
Zhou, W.
Xia, B.B.
Wang, M.L.
Chen, J.
Powiązania:
https://bibliotekanauki.pl/articles/2087588.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
bioavailability
ovine interferon-τ
cytopathic effect inhibition assay
pharmacokinetic study
Źródło:
Polish Journal of Veterinary Sciences; 2019, 1; 75-82
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
One shot profilometry using iterative two-step temporal phase-unwrapping
Autorzy:
Du, G.
Wang, M.
Zhou, C.
Si, S.
Li, H.
Lei, Z.
Li, Y.
Powiązania:
https://bibliotekanauki.pl/articles/173912.pdf
Data publikacji:
2017
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
phase unwrapping
composite fringe pattern
Fourier transform
two-step temporal phase-unwrapping
Opis:
This paper reviews two techniques that have been recently published for three-dimensional profilometry and proposes one shot profilometry using iterative two-step temporal phase-unwrapping by combining the composite fringe projection and the iterative two-step temporal phase unwrapping algorithm. In temporal phase unwrapping, many images with different frequency fringe pattern are needed to project, which would take much time. In order to solve this problem, Ochoa proposed a phase unwrapping algorithm based on phase partitions using a composite fringe. However, we found that the fringe order determined through the construction of phase partitions tended to be imprecise. Recently, we proposed an iterative two-step temporal phase unwrapping algorithm, which can achieve high sensitivity and high precision shape measurement. But it needs multiple frames of fringe images which would take much time. In order to take into account both the speed and accuracy of three-dimensional shape measurement, we get a new, and more accurate unwrapping method based on a composite fringe pattern by combining these two techniques. This method not only retains the speed advantage of Ochoa’s algorithm, but also greatly improves its measurement accuracy. Finally, the experimental evaluation is conducted to prove the validity of the proposed method.
Źródło:
Optica Applicata; 2017, 47, 1; 97-110
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of Flash Lamp Annealing on the Optical Properties of CIGS Layer
Autorzy:
Prucnal, S.
Jiao, F.
Reichel, D.
Zhao, K.
Cornelius, S.
Turek, M.
Pyszniak, K.
Drozdziel, A.
Skorupa, W.
Helm, M.
Zhou, S.
Powiązania:
https://bibliotekanauki.pl/articles/1199248.pdf
Data publikacji:
2014-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
88.40.jn
61.72.Cc
78.55.Hx
Opis:
Copper indium gallium diselenide (CIGS) becomes more significant for solar cell applications as an alternative to silicon. The quality of the layer has a critical impact on the final efficiency of the solar cell. An influence of the post-deposition millisecond range flash lamp annealing on the optical and microstructural properties of the CIGS films was investigated. Based on the Raman and photoluminescence spectroscopy, it is shown that flash lamp annealing reduces the defect concentration and leads to an increase of the photoluminescence intensity by a factor of six compared to the nonannealed sample. Moreover, after flash lamp annealing the degradation of the photoluminescence is significantly suppressed and the absolute absorption in the wavelength range of 200-1200 nm increases by 25%.
Źródło:
Acta Physica Polonica A; 2014, 125, 6; 1404-1407
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improved method for phase wraps reduction in profilometry
Autorzy:
Du, G.
Wang, M.
Zhou, C.
Si, S.
Li, H.
Lei, Z.
Li, Y.
Powiązania:
https://bibliotekanauki.pl/articles/173793.pdf
Data publikacji:
2017
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
phase unwrapping
zero-padding
Fourier transform
carrier-frequency
profilometry
Opis:
In order to completely eliminate, or greatly reduce the number of phase wraps in 2D wrapped phase map, Gdeisat and co-workers proposed an algorithm, which uses shifting the spectrum towards the origin. But the spectrum can be shifted only by an integer number, meaning that the phase wraps reduction is often not optimal. In addition, Gdeisat’s method will take much time to make the Fourier transform, inverse Fourier transform, select and shift the spectral components. In view of the above problems, we proposed an improved method for phase wraps elimination or reduction. First, the wrapped phase map is padded with zeros, the carrier frequency of the projected fringe is determined by high resolution, which can be used as the moving distance of the spectrum. And then realize frequency shift in spatial domain. So it not only can enable the spectrum to be shifted by a rational number when the carrier frequency is not an integer number, but also reduce the execution time. Finally, the experimental results demonstrated that the proposed method is feasible.
Źródło:
Optica Applicata; 2017, 47, 2; 295-306
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
III-V Quantum Dots in Dielectrics Made by Ion Implantation and Flash Lamp Annealing
Autorzy:
Prucnal, S.
Turek, M.
Gao, K.
Zhou, S.
Pyszniak, K.
Droździel, A.
Żuk, J.
Skorupa, W.
Powiązania:
https://bibliotekanauki.pl/articles/1400484.pdf
Data publikacji:
2013-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
78.30.Fs
78.67.Hc
81.05.Ea
81.07.Ta
81.15.Lm
Opis:
Different semiconductor nanocrystals synthesized in dielectrics on silicon are very interesting for applications in non-volatile memories and photovoltaics. In this paper we present an overview of microstructural and opto-electronic properties of different III-V quantum dots embedded in $SiO_2$ and $Si_3N_4$ made by sequential ion implantation and millisecond range flash lamp annealing. It is shown that within 20 ms post-implantation annealing high quality crystalline III-V quantum dots can be formed in different matrices. Formation of crystalline III-V quantum dots was confirmed by cross-section transmission electron microscopy, photoluminescence and μ-Raman spectroscopy. Flash lamp annealing is essentially a single-flash-single-wafer technique whose main attributes are the ease and control of processing over large wafer batches.
Źródło:
Acta Physica Polonica A; 2013, 123, 5; 935-938
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Genetic analysis of 38 double-flowered amaryllis (Hippeastrum hybridum) cultivars based on SRAP markers
Autorzy:
Xiong, M.
Yang, S.
Wang, Y.
Chen, D.
Wang, X.
Zhou, D.
Wei, Z.
Powiązania:
https://bibliotekanauki.pl/articles/12994499.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2021, 20, 3; 15-25
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fast leak detection and location of gas pipelines based on an adaptive particle filter
Autorzy:
Liu, M.
Zang, S.
Zhou, D.
Powiązania:
https://bibliotekanauki.pl/articles/908443.pdf
Data publikacji:
2005
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
rurociąg gazowy
diagnozowanie wycieku
lokalizowanie wycieku
filtr cząsteczkowy
gas pipeline
leak detection and location
particle filter
Opis:
Leak detection and location play an important role in the management of a pipeline system. Some model-based methods, such as those based on the extended Kalman filter (EKF) or based on the strong tracking filter (STF), have been presented to solve this problem. But these methods need the nonlinear pipeline model to be linearized. Unfortunately, linearized transformations are only reliable if error propagation can be well approximated by a linear function, and this condition does not hold for a gas pipeline model. This will deteriorate the speed and accuracy of the detection and location. Particle filters are sequential Monte Carlo methods based on point mass (or “particle”) representations of probability densities, which can be applied to estimate states in nonlinear and non-Gaussian systems without linearization. Parameter estimation methods are widely used in fault detection and diagnosis (FDD), and have been applied to pipeline leak detection and location. However, the standard particle filter algorithm is not applicable to time-varying parameter estimation. To solve this problem, artificial noise has to be added to the parameters, but its variance is difficult to determine. In this paper, we propose an adaptive particle filter algorithm, in which the variance of the artificial noise can be adjusted adaptively. This method is applied to leak detection and location of gas pipelines. Simulation results show that fast and accurate leak detection and location can be achieved using this improved particle filter.
Źródło:
International Journal of Applied Mathematics and Computer Science; 2005, 15, 4; 541-550
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Establishment of 5-Fluorouracil-resistant canine mammary tumor cell line
Autorzy:
Zhou, B.
Zhang, D.
Pei, S.M.
Zhang, K.
Du, H.C.
Jin, Y.P.
Lin, D.G.
Powiązania:
https://bibliotekanauki.pl/articles/30283.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
Canine mammary tumors are the most common neoplasms in intact female dogs. The surgery cannot always solve the problem, chemotherapy are recommend to these patients. However, chemotherapy could always fail because of multidrug resistance (MDR). Through stepwise increasing 5-Fluorouracil (5-FU) concentration in the culture medium, a 5-FU-resistant canine mammary tumor cell line CMT7364/5-FU was established to disclose the molecular mechanism of the drug resistance. Cell morphology, cell sensitivity to drugs, growth curves, expression of proteins, and chemo-sensitivity in vivo were compared between the parental cell line and resistant cell line. As compared it to its parental cell line (CMT7364), CMT7364/5-FU showed different morphology, cross-resistant to other chemo-drugs and a prolonged population doubling time (PDT). The drug efflux pump proteins (ABCB1 and ABCG2) in CMT7364/5-FU were up-regulated. In vivo, the similar result revealed that CMT7364/5-FU cell line was more resistant to 5-FU. In conclusion, a 5-FU-resistant canine mammary tumor cell line (CMT7364/5-FU) was successfully established, it can serve as a good model for researching the mechanism of MDR and screening effective agents to reverse drug resistance.
Źródło:
Polish Journal of Veterinary Sciences; 2017, 20, 1
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Embedded Solitons and Conservation Law with $χ^{(2)}$ and $χ^{(3)}$ Nonlinear Susceptibilities
Autorzy:
Savescu, M.
Kara, A.
Kumar, S.
Krishnan, E.
Zaka Ullah, M.
Moshokoa, S.
Zhou, Qin
Biswas, A.
Powiązania:
https://bibliotekanauki.pl/articles/1398312.pdf
Data publikacji:
2017-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
solitons
χ^{(2)}
conservation laws
Opis:
This paper studies embedded solitons that are confined to continuous spectrum, with $χ^{(2)}$ and $χ^{(3)}$ nonlinear susceptibilities. Bright and singular soliton solutions are obtained by the method of undetermined coefficients. Subsequently, the Lie symmetry analysis and mapping method retrieves additional solutions to the model such as shock waves, singular solitons, cnoidal waves, and several others. Finally, a conservation law for this model is secured through the Lie symmetry analysis.
Źródło:
Acta Physica Polonica A; 2017, 131, 2; 297-303
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł

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