Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "Jiang, M." wg kryterium: Autor

  Lista filtrów
Wyrównaj
Wyświetlanie 1-15 z 26
Tytuł:
A new design of a photonic crystal fiber with a beam shaping effect and flexible management of dispersion and confinement loss
Autorzy:
Huang, Y.
Jiang, P
Yang, H.
Yu, M.
Powiązania:
https://bibliotekanauki.pl/articles/173817.pdf
Data publikacji:
2014
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
photonic crystal fiber
hollow beam
chromatic dispersion
Opis:
A new design of a guiding-index photonic crystal fiber which possesses a beam shaping effect and flexible control of dispersion has been proposed in this paper. It can shape a Gaussian beam into a circular hollow beam with certain dimension, which can be used in optical communication systems with a Cassegrain antenna to improve transmission efficiency by avoiding the loss of energy caused by the subreflector center reflection. In addition, its dispersion and confinement loss can be changed in a broad range by slightly adjusting structural parameters under condition that the hollow beam dimension remains about the same. Fairly practical properties, zero dispersion or flattened dispersion, can be obtained when structural parameters are set appropriately. A series of models with different parameters are analyzed and compared. Results of numerical simulation show that the ultra-low dispersion of 1.802 ps/km/nm can be obtained when λ = 1.31 μm. Several modest design parameters are given as well.
Źródło:
Optica Applicata; 2014, 44, 3; 375-387
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A super depth of field height measurement based on local disparity
Autorzy:
Cui, L.
Liu, Y.
Yu, M.
Jiang, G.
Fan, S.
Wang, Y.
Powiązania:
https://bibliotekanauki.pl/articles/173522.pdf
Data publikacji:
2015
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
microscopes
binocular vision
local disparity map
depth of field (DOF)
height measurement
Opis:
A super depth of field height measurement method is proposed to measure the object height with the optical stereoscopic microscope. The quasi-Euclidean epipolar rectification algorithm is utilized on the original stereoimage to obtain rectified stereoimages and calibrate two camera parameters. Then, feature points are obtained by the SURF (speed up robust feature) algorithm and their corresponding disparities are calculated. The disparity-depth of field curve is fitted by combining the step height values of a stepper motor. Moreover, through local disparity value got from feature points on the object, the relative shift height is calculated through regression analysis. Finally, according to binocular vision geometry, the thickness of the object can be calculated. Experimental results show that the measurement error in Z direction is from 1.51% to 7.71%, which indicates that the proposed method is able to measure the height of a microobject beyond depth of field within a tolerant error.
Źródło:
Optica Applicata; 2015, 45, 2; 205-214
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Actuator failure compensation for two linked 2WD mobile robots based on multiple-model control
Autorzy:
Ma, Y.
Cocquempot, V.
El Badaoui El Najjar, M.
Jiang, B.
Powiązania:
https://bibliotekanauki.pl/articles/331196.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
actuator failure
multiple model control
physically linked robot
two wheel drive
awaria siłownika
sterowanie wielomodelowe
robot połączony
Opis:
This paper develops a new actuator failure compensation scheme for two linked two-wheel drive (2WD) mobile robots based on multiple-model control. First, a configuration of two linked 2WD robots is described, and their kinematics and dynamics are modeled. Then, a multiple-model based failure compensation scheme is developed to compensate for actuator failures, consisting of a kinematic controller, multiple dynamic controllers and a control switching mechanism, which ensures system stability and asymptotic tracking properties. Finally, simulation results verify the effectiveness of the proposed failure compensation control system.
Źródło:
International Journal of Applied Mathematics and Computer Science; 2017, 27, 4; 763-776
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis and Optimization of Micro Speaker-Box Using a Passive Radiator in Portable Device
Autorzy:
Jiang, Y.-W.
Kwon, J.-H.
Kim, H.-K.
Hwang, S.-M.
Powiązania:
https://bibliotekanauki.pl/articles/176530.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
passive radiator
speaker box
SPL improvement
Sound Pressure Level
Opis:
With the rapid development of multimedia devices such as smart phones and tablet PCs, microspeakers have been recently increasingly used for audio equipment. Improving the acoustic performance of a microspeaker is always a main concern, especially in the low frequency range. To avoid sound cancelation, a microspeaker unit is usually inserted into a speaker box. A passive radiator is also used in speaker boxes to improve the sound performance in the loudspeaker system. However, passive radiators have not been applied into microspeaker system. In this study, a speaker box with a passive radiator was analyzed and optimized to achieve a higher Sound Pressure Level (SPL) in a microspeaker system. The Finite Element Method (FEM), two-degree-of-freedom (DOF) vibration theory, and a plane circular piston sound source were used to study the electromagnetic, vibration, and acoustic characteristics, respectively. Optimization was conducted by changing the mass, stiffness, and size of the passive radiator. Based on the optimized parameters, a new sample was manufactured. The experiment results show that the SPL of the optimized speaker box with a passive radiator is improved by 5 dB at 200 Hz compared with the one without a radiator. The analysis results also matched the experiment results.
Źródło:
Archives of Acoustics; 2017, 42, 4; 753-760
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Automatic Identification of Jacquard Warp-knitted Fabric Patterns Based on the Wavelet Transform
Automatyczna identyfikacja wzorów żakardowych dzianin osnowowych oparta na transformacji typu „wavelet”
Autorzy:
Jiang, G. M.
Zhang, D.
Cong, H. L.
Zhang, A L
Gao, Z.
Powiązania:
https://bibliotekanauki.pl/articles/234403.pdf
Data publikacji:
2014
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
Tematy:
Jacquard
warp-knitted fabric
pattern
automatic identification
wavelet transform
dzianina żakardowa
transformacja typu "wavelet"
automatyczna identyfikacja
dzianina osnowowa
Opis:
In view of the fact that the design of jacquard warp knitting patterns is time-consuming, this paper proposes a rapid segmentation method to divide the multi-textural regions of jacquard warp-knitted fabric which could be used for automatic identification of fabric patterns to improve the efficiency of design. After pretreatment, the images scanned were decomposed by a two-layer two-dimensional wavelet transform and the standard deviations of five channels were extracted as the eigen values. Then, after giving the cluster centers, a multi-channel clustering was made combined with a K-means clustering algorithm. Finally the removal of noises caused by classification errors was needed , after which an accurate identification image was obtained. The experiments show that this method can achieve automatic texture segmentation of jacquard warp-knitted fabric with more than three textural regions. The identification results have high regional consistency, and the segmentation accuracy is up to 92%. The method can also adapt to a variety of mesh regions. Besides this, the approach is fast and can simplify craft personnel’s traditional process of pattern tracing classification when it is combined with CAD. Through this method, the efficiency of jacquard warp-knitted product designing can be improved a lot.
Biorąc pod uwagę, że określenie wzorów żakardowych dzianin osnowowych jest czasochłonne, zastosowano metodę szybkiej segmentacji wzorów dla wydzielenia wielostrukturalnych rejonów dzianin, które mogłyby zostać wykorzystane dla automatycznej identyfikacji wzorów dzianin i usprawnieniu procesu projektowania. Po wstępnej obróbce zeskanowane obrazy zostają podzielone poprzez dwuwarstwową, dwuwymiarową transformacje typu „wavelet”, następnie określa się odchylenia standardowe dla pięciu kanałów i ekstrahuje się jako wartość własną. Następnie przeprowadza się wielowarstwową analizę klastrów opartą na specjalnym algorytmie. W końcu usuwa się szumy spowodowane przez błędy klasyfikacyjne co pozwala na dokładną identyfikację obrazów. Eksperymenty wykazują, że opracowana metoda pozwala na automatyczną segmentację struktury osnowowych dzianin żakardowych z więcej niż trzema regionami strukturalnymi. Opracowana metoda zapewnia identyfikację z dokładnością do 92% i znacznie usprawnia proces projektowania dzianin żakardowych.
Źródło:
Fibres & Textiles in Eastern Europe; 2014, 2 (104); 53-56
1230-3666
2300-7354
Pojawia się w:
Fibres & Textiles in Eastern Europe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bacterial communities in PM2.5 and PM10 in broiler houses at different broiler growth stages in spring
Autorzy:
Zhang, J.
Li, Y.
Xu, E.
Jiang, L.
Tang, J.
Li, M.
Zhao, X.
Chen, G.
Zhu, H.
Yu, X.
Zhang, X.
Powiązania:
https://bibliotekanauki.pl/articles/2087465.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
bacterial communities
broilers
high-throughput sequencing
particulate matter
Źródło:
Polish Journal of Veterinary Sciences; 2019, 3; 495-504
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Change characteristics of DSi and nutrition structure at the Yangtze River Estuary after Three Gorges Project impounding and their ecological effect
Autorzy:
Li, L.
Shen, X.
Jiang, M.
Powiązania:
https://bibliotekanauki.pl/articles/205425.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Three Gorges Project
Yangtze River Estuary
DSi
dissolved silica
nutrition structure
Opis:
The variation law of dissolved silica (DSi), dissolved inorganic nitrogen (DIN), dissolved inorganic phosphorus (DIP) and nutrition structure after the Three Gorges Project (TGP) impounding as well as their ecological effect were analyzed according to monitoring survey of the Yangtze River Estuary in spring (May) and summer (August) from 2004–2009. The results showed that after impounding, DSi and DIN concentration decreased and increased, respectively. During the study period, DSi decreased by about 63%, while DIN almost tripled. DIP concentration fluctuated slightly. With respect to nutrition structure, N:P increased, whereas Si:P and Si:N declined. According to chemometry standard of nutrient limits, nutrition structure tended to be imbalanced and the limiting factor of phytoplankton growth (P) was studied. Changes of nutrition structure have largely decreased diatom and caused different composition of dominant phytoplankton species. This may change ecosystem structure of the Yangtze River Estuary.
Źródło:
Archives of Environmental Protection; 2017, 43, 2; 74-79
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development and application of isothermal amplification methods for rapid detection of F4 fimbriae producing Escherichia coli
Autorzy:
Zhao, L.Y.
Niu, J.H.
Gao, X.L.
Liu, C.N.
Liu, S.M.
Jiang, N.
Lv, X.P.
Zheng, S.M.
Powiązania:
https://bibliotekanauki.pl/articles/2087340.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Escherichia coli
F4 fimbriae
isothermal amplification
rapid detection
clinical samples
Źródło:
Polish Journal of Veterinary Sciences; 2020, 23, 1; 143-152
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Disparity servoing based fast autofocusing method for stereomicroscope
Autorzy:
Liu, Y.
Yu, M.
Cui, L.
Jiang, G.
Wang, G.
Fan, S.
Powiązania:
https://bibliotekanauki.pl/articles/174449.pdf
Data publikacji:
2016
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
autofocusing
stereomicroscope
stereomicroscopic images
disparity
Opis:
A disparity servoing based fast autofocusing method is proposed for stereomicroscopes according to linear relationship between the disparity change in stereomicroscopic images and the move distance of a motorized translation stage. For a certain stereomicroscope, the calibration of a disparity range of clear images at each magnification is implemented offline. After that, the disparity of the stereomicroscopic image is used as an index to represent the sharpness of an arbitrary image. If the disparity does not satisfy the requirement, move steps and direction of a step motor are calculated by utilizing the linear relationship between the disparity change and the move distance of the stage. The iteration will be continued until the disparity of the captured stereomicroscopic image approximates to the clearest disparity. The experimental results show that the proposed method only requires a few iterations and less time to reach the focus position, and the disparity error is less than 0.5 pixel.
Źródło:
Optica Applicata; 2016, 46, 4; 651-663
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Economic and energy efficiency of agriculture in Poland compared to other European Union countries
Efektywność ekonomiczno-energetyczna rolnictwa w Polsce na tle krajów Unii Europejskiej
Autorzy:
Wysokiński, M.
Golonko, M.
Gromada, A.
Trębska, P.
Jiang, Q.J.
Powiązania:
https://bibliotekanauki.pl/articles/2117692.pdf
Data publikacji:
2020
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
economy
energy
efficiency
agriculture
EU
ekonomia
energia
efektywność
rolnictwo
UE
Opis:
Modern agriculture is dependent on external energy sources. Non-renewable energy sources play a dominant role, which contributes to greenhouse gas emissions and, as a consequence, to environmental degradation. Therefore, it becomes obvious to strive to improve energy efficiency and change the structure of its sources. One of the main research goals was to determine the economic and energy efficiency of agriculture in EU countries and assess its energy consumption by analysing energy consumption per employee or 1 ha of utilized agricultural area. The work analyses changes in energy consumption in agriculture of the European Union and its members. Eurostat data was used for the analysis.
Współczesne rolnictwo jest bezwzględnie uzależnione od zewnętrznych źródeł energii. Dominującą rolę w tym zakresie odgrywają nieodnawialne źródła energii, co przyczynia się do emisji gazów cieplarnianych i w konsekwencji degradacji środowiska naturalnego. Oczywiste staje się więc dążenie do poprawy efektywności wykorzystania energii oraz zmiany w strukturze źródeł jej pozyskiwania. Określenie efektywności ekonomiczno-energetycznej oraz ocena energochłonności rolnictwa w krajach UE były jednymi z głównych celów badawczych pracy. W artykule przeanalizowano zmiany zużycia energii w rolnictwie w przeliczeniu na zatrudnionego lub 1 ha użytków rolnych w całej Unii Europejskiej, a także w poszczególnych krajach członkowskich. Do analizy wykorzystano dane Eurostat.
Źródło:
Acta Scientiarum Polonorum. Oeconomia; 2020, 19, 2; 97-105
1644-0757
Pojawia się w:
Acta Scientiarum Polonorum. Oeconomia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of the acrosome reaction on the efficiency of sperm-mediated DNA transfer
Autorzy:
Mu, Y.
Jiang, C.
Jiao, M.
Zhao, Y.
Lv, J.
Liu, Z.
Powiązania:
https://bibliotekanauki.pl/articles/2087625.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
spermatoza
SMGT
acrosome reaction
exogenous DNA
Źródło:
Polish Journal of Veterinary Sciences; 2018, 21, 4; 755-762
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Isolation and sequence analysis of the complete VP2 gene of canine parvovirus from Chinese domestic pets and determination of the pathogenesis of these circulating strains in beagles
Autorzy:
Chen, M.R.
Guo, X.Y.
Wang, Z.Y.
Jiang, Y.T.
Yuan, W.F.
Xin, T.
Hou, S.H.
Song, T.Q.
Lin, W.D.
Zhu, H.F.
Jia, H.
Powiązania:
https://bibliotekanauki.pl/articles/2087542.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
canine parvovirus
molecular epidemiology
phylogenetic analysis
pathogenesis
Źródło:
Polish Journal of Veterinary Sciences; 2019, 2; 287-296
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Leaching kinetic study of Y and Eu from waste phosphors using hydrochloric acid solution containing hydrogen peroxide
Autorzy:
Yu, M.
Jiang, Z.
Mei, G.
Chen, X.
Powiązania:
https://bibliotekanauki.pl/articles/949690.pdf
Data publikacji:
2018
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
waste phosphors
leaching
kinetics
rare earth elements
Opis:
The leaching kinetics of Y and Eu from waste phosphors using a hydrochloric acid (HCl) solution containing hydrogen peroxide (H2O2) were investigated. Characterization of the waste phosphors was performed using XRD to ascertain the phases as (Y0.95Eu0.05)2O3 (red phosphors), (Ce0.67Tb0.33)MgAl11O19 (green phosphors), (Ba0.9Eu0.1)Mg2Al16O27 (blue phosphors), and SiO2 (quartz). The influence of factors such as HCl concentration, addition amount of H2O2, temperature, and reaction time on the leaching performance of Y and Eu was investigated. The maximum leaching recoveries of Y (99.87%) and Eu (88.72%) were obtained at 4 M HCl, 0.2 cm3/g H2O2, 60 ℃ temperature, and 180 min of reaction time at a liquid-to-solid ratio of 7.5 cm3/g. Leaching kinetic results showed the best fit with the shrinking sphere model (1-(1-x)1/3)=kct), ensuring that the overall leaching process was governed by a chemical control mechanism. Activation energies of 42.35 and 33.28 kJ/mol were acquired for leaching of Y and Eu, respectively, at 40-70 ℃, which further supports the proposed chemical control leaching process.
Źródło:
Physicochemical Problems of Mineral Processing; 2018, 54, 2; 238-248
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Leaching of heavy metals from MSWI fly ash : experiments vs. simulation
Autorzy:
Qiu, Q
Jiang, X.
Chen, Z.
Lu, S.
Ni, M.
Powiązania:
https://bibliotekanauki.pl/articles/205253.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
simulation
MSWI fly ash
microwave
hydrothermal treatment
Visual MINTEQ
Opis:
In this work, pH-dependence experiments and leaching modeling using Visual MINTEQ were performed to evaluate the stability and simulate the leaching characteristics of heavy metals in municipal solid waste incineration (MSWI) fly ash. Modeling the equilibrium concentration of Cd, Cu, Cr, Ni, Pb and Zn in raw and treated fly ash was the main target and was conducted over a pH range of 0.5–14. In addition, simulation of the leaching behavior of MSWI fly ash with different additives was also conducted. The treated fly ash was solidified by a microwave-assisted hydrothermal process with added phosphate. The initial elemental concentrations of MSWI fly ash, including raw and treated fly ash, were detected by a microwave apparatus and inductively coupled plasma atomic emission spectroscopy (ICP-AES). The ICP-AES analysis showed that most leaching concentrations of treated fly ash decreased considerably compared to the raw fly ash. The simulation results indicated that the dissolution/precipitation simulation models of Zn, Cu and Pb were broadly consistent with the experimental results, while the leaching behaviors of Ni, Cr and Cd were determined by both dissolution/precipitation and surface complexation mechanisms. In addition, the models of reagent solidification revealed that the stabilization effect of Na2S was better than that of Na2CO3. This model will be useful in the evaluation of the leaching concentrations of heavy metals in fly ash.
Źródło:
Archives of Environmental Protection; 2018, 44, 2; 55-61
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mitigation scratch on fused silica optics using CO2 laser
Autorzy:
Liu, C.-M.
Yan, Z.-H.
Yang, L.
Jiang, Y.
Zu, X.-T.
Wang, H.-J.
Liao, W.
Yuan, X.-D.
Zheng, W.-G.
Powiązania:
https://bibliotekanauki.pl/articles/174978.pdf
Data publikacji:
2016
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
mitigation
scratch
fused silica
CO2 laser
Opis:
The scratch on a fused silica surface was treated as a chain of connected damage sites and mitigated one after another using CO2 laser irradiation. The optical microscopy image shows that a scratch with the width of about 30 μm and length of several millimeters can be completely mitigated without the formation of debris and bubbles. The mitigated scratch can survive under raster scan laser irradiation with the fluency increased up to 11.0J/cm2 at 3ns and 351nm. On the contrary, the substrate without CO2 laser mitigation is seriously damaged under this irradiation. The light modulation induced by mitigation is much smaller when the scratch is mitigated before being damaged. The light modulation is about 2 when the distance to the mitigated sample is larger than 20cm. The birefringence induced by residual stress in the mitigated scratch is measured. The retardance of the mitigated scratch before being damaged is not visible. Therefore, residual stress in this mitigated scratch before being damaged should be not a critical potential risk in laser damage.
Źródło:
Optica Applicata; 2016, 46, 3; 387-397
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 26

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies