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Tytuł:
Green ultrasound-assisted extraction of anthocyanin and phenolic compounds from purple sweet potato using response surface methodology
Autorzy:
Zhu, Z.
Guan, Q.
Guo, Y.
He, J.
Liu, G.
Li, S.
Barba, F.J.
Jaffrin, M.Y.
Powiązania:
https://bibliotekanauki.pl/articles/24695.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
ultrasound
extraction
anthocyanin
phenolic compound
sweet potato
response surface methodology
Źródło:
International Agrophysics; 2016, 30, 1
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thermal Decomposition Kinetics of Hexanitrohexaazaisowurtzitane/Ammonium Perchlorate
Autorzy:
Zhu, Y.-L.
Wang, K.-K.
Shan, M.-X.
Zheng, X.-D.
Jiao, Q.-J.
Wang, J.-S.
Powiązania:
https://bibliotekanauki.pl/articles/358067.pdf
Data publikacji:
2016
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
hexanitrohexaazaisowurtzitane
ammonium perchlorate
thermal analysis
thermal decomposition kinetics
Opis:
The thermal decomposition kinetics of hexanitrohexaazaisowurtzitane/ ammonium perchlorate (HNIW/AP) have been investigated by thermogravimetrydifferential scanning calorimetry-mass spectrometry (TG-DSC-MS) simultaneous analysis. TG showed that there were three weight loss processes for the thermal decomposition of the HNIW/AP mixture. The first was ascribed mainly to the thermal decomposition of HNIW, while the second and third were assigned to that of AP. The presence of AP has little effect on the thermal decomposition process of the HNIW component. The apparent activation energy of the thermal decomposition of the HNIW component, calculated by the Kissinger method, was little changed compared to that of neat HNIW. The addition of HNIW to AP caused the onset and end temperatures of the thermal decomposition to be decreased and the decomposition process to be shortened. The high-temperature and lowtemperature decomposition processes of AP became blurred in the presence of HNIW, and this was supported by the MS results.
Źródło:
Central European Journal of Energetic Materials; 2016, 13, 1; 149-159
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Molecular cloning, bioinformation analysis and expression of the strictosidine synthase in Dendrobium officinale
Autorzy:
Zhu, Y.-F.
Fan, H.-H.
Li, D.-H.
Jin, Q.
Zhang, C.-M.
Zhu, L.-Q.
Song, C.
Cai, Y.-P.
Lin, Y.
Powiązania:
https://bibliotekanauki.pl/articles/12715947.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Opis:
The enzyme strictosidine synthase (STR, EC: 4.3.3.2) plays a key role in the biosynthetic pathway of terpenoid indole alkaloid (TIA). It catalyzes the condensation of the tryptamine and secologanin to form 3α(S)-strictosidine, which is the common precursor of all TIAs. In this paper, a STR gene designated as DoSTR (GenBank: KX068707) was first cloned and characterized from Dendrobium officinale with rapid amplified cDNA ends method (RACE). DoSTR has a length of 1380bp with 1179bp open reading frame encoding 392 amino acids. BlastP analyses showed that its amino acid sequence was classified into Str_synth superfamily. qRT-PCR showed that DoSTR was expressed in all tissues tested, with a significantly higher level in flower and the lowest in stem. Four different treatments with MeJA, SA, ABA and AgNO₃, respectively, could induce the DoSTR expression to a different extent. And the effect of MeJA was the most obvious and transcript level of DoSTR induced by MeJA was 20.7 times greater than that of control at 48 hours after treatment. Furthermore, it was found that DoSTR was localized in vacuole through transient expression in tobacco. The characterization and expression of DoSTR can help in further studying the role of DoSTR in the biosynthesis of TIAs in D. officinale. This study may throw light on the alkaloid biosynthesis pathway of D. officinale.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2020, 19, 3; 111-124
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
High Heat Flux Testing of Doped and Coated Graphite Using High-Intensity Pulsed Ion Beam
Autorzy:
Zhu, X.
Liu, C.
Lei, M.
Powiązania:
https://bibliotekanauki.pl/articles/1807981.pdf
Data publikacji:
2009-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
28.52.Fa
52.59.Mv
81.05.Uw
Opis:
A high-intensity pulsed ion beam (HIPIB) technique is applied to heat flux testing of plasma facing materials for fusion experiment. The HIPIB is generated at a relatively stable power density up to $10^{8}$ W/$cm^{2}$, which covers a heat flux parameter of up to several hundreds MW $m^{-2} s^{1//2}$. Surface morphology and weight loss are examined for doped and coated graphite with HIPIB exposure of 280 MW $m^{-2} s^{1//2}$, being of the same order of thermal loads during off-normal events in future fusion reactors. The work demonstrates a first example utilizing the HIPIB technique to study thermal response of plasma facing materials under fusion relevant thermal loads.
Źródło:
Acta Physica Polonica A; 2009, 115, 6; 1177-1179
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of the non-flow effects and fluctuations on the v2 measurements at RHIC
Autorzy:
Zhu, X.
Bleicher, M.
Powiązania:
https://bibliotekanauki.pl/articles/148374.pdf
Data publikacji:
2006
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
relativistic heavy-ion collisions
collective flow
Monte Carlo simulation
Opis:
The cumulant method is applied to study elliptic flow (v2) in Au+Au collisions at s = 200 AGeV, with the UrQMD model. We find that the four and six-particle cumulants are good measures of the real elliptic flow over a wide range of centralities except for the most central and very peripheral events. There the cumulant method is affected by the v2 fluctuations. In mid-central collisions, the four and six-particle cumulants are shown to give a good estimation of the true differential v2, especially at large transverse momentum, where the two-particle cumulant method is heavily affected by the non-flow effects.
Źródło:
Nukleonika; 2006, 51,suppl.3; 37-41
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical loss analysis on slot-type casing treatment in a transonic compressor stage
Autorzy:
Zhu, M.-M.
Qiang, X.-Q.
Teng, J.-F.
Powiązania:
https://bibliotekanauki.pl/articles/280437.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
axial compressor
numerical simulation
slot-type casing treatment
loss mechanism
tip leakage flow
Opis:
To understand the loss mechanism of slot-type casing treatment, a numerical loss analysis has been carried out in a 1.5 axial transonic compressor stage with various slots. Spanwise and streamwise distribution curves of pitch-averaged entropy have been presented to survey the development of loss generation. Further, detailed entropy distributions at eight axial cuts, which have been taken through the blade row and slots, have been further analyzed to interpret the loss mechanism. The most dramatic loss growth occurred above 95% span, which directly resulted from slots injection flow upstream the leading edge. Loss generations with smooth casing have been primarily ascribed to low-momentum tip leakage flow/vortex and suction surface separation at the leading edge. CU0 slot, the arc-curved slots with 50% rotor tip exposure, has been capable of suppressing the suction surface separation loss. Meanwhile, accelerated tip leakage flow brought about additional loss near the casing and pressure surface. Upstream high entropy flow would be absorbed into the rear portion of slots repeatedly, which resulted in further loss.
Źródło:
Journal of Theoretical and Applied Mechanics; 2017, 55, 1; 293-306
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comprehensive Evaluation Cloud Model for Ship Navigation Adaptability
Autorzy:
Zhu, M.
Wen, Y.
Zhou, C.
Xiao, C.
Powiązania:
https://bibliotekanauki.pl/articles/115973.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
cloud computing
Cloud Model
marine navigation
Delphi
Qualitative Description
Quantitative Transformation
Cloud Algorithm
Fuzzy Comprehensive Evaluation Method
Opis:
In this paper, using cloud model and Delphi, we build a comprehensive evaluation cloud model to solve the problems of qualitative description and quantitative transformation in ship navigation adaptability comprehensive evaluation. In the model, the normal cloud generator is used to find optimal cloud models of reviews and evaluation factors. The weight of each evaluation factor is determined by cloud model and Delphi. The floating cloud algorithm is applied to aggregate the bottom level’s evaluation factors, and comprehensive cloud algorithm is used to aggregate the highest level’s evaluation factors to get comprehensive evaluation cloud model. Finally, evaluation result is got by matching comprehensive evaluation cloud model and optimal cloud model of reviews. As case study, the model is applied to the small LNG ship’s navigation adaptability in Southeast Asia. Compared with the fuzzy comprehensive evaluation method, the model proposed in this paper is more intuitive and reliable in comprehensive evaluation of the small LNG ship’s navigation adaptability.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2014, 8, 3; 331-336
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Integrated algorithms for RFID-based multi-sensor indoor/outdoor positioning solutions
Autorzy:
Zhu, M.
Retscher, G.
Zhang, K.
Powiązania:
https://bibliotekanauki.pl/articles/130493.pdf
Data publikacji:
2011
Wydawca:
Stowarzyszenie Geodetów Polskich
Tematy:
mapping
integration
algorithm
performance
advancement
mapowanie
integracja
algorytm
nowoczesność
Opis:
Position information is very important as people need it almost everywhere all the time. However, it is a challenging task to provide precise positions indoor/outdoor seamlessly. Outdoor positioning has been widely studied and accurate positions can usually be achieved by well developed GPS techniques but these techniques are difficult to be used indoors since GPS signal reception is limited. The alternative techniques that can be used for indoor positioning include, to name a few, Wireless Local Area Network (WLAN), bluetooth and Ultra Wideband (UWB) etc.. However, all of these have limitations. The main objectives of this paper are to investigate and develop algorithms for a low-cost and portable indoor personal positioning system using Radio Frequency Identification (RFID) and its integration with other positioning systems. An RFID system consists of three components, namely a control unit, an interrogator and a transponder that transmits data and communicates with the reader. An RFID tag can be incorporated into a product, animal or person for the purpose of identification and tracking using radio waves. In general, for RFID positioning in urban and indoor environments three different methods can be used, including cellular positioning, trilateration and location fingerprinting. In addition, the integration of RFID with other technologies is also discussed in this paper. A typical combination is to integrate RFID with relative positioning technologies such as MEMS INS to bridge the gaps between RFID tags for continuous positioning applications. Experiments are shown to demonstrate the improvements of integrating multiple sensors with RFID which can be employed successfully for personal positioning.
Źródło:
Archiwum Fotogrametrii, Kartografii i Teledetekcji; 2011, 22; 451-465
2083-2214
2391-9477
Pojawia się w:
Archiwum Fotogrametrii, Kartografii i Teledetekcji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Parameter identification of ship maneuvering models using recursive least square method based on support vector machines
Autorzy:
Zhu, M.
Hahn, A.
Wen, Y.
Bolles, A.
Powiązania:
https://bibliotekanauki.pl/articles/116455.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
ship manoeuvering
recursive least square method
ship manoeuvering model
ship maneuverability prediction
Support Vector Machines (SVM)
empirical mode decomposition (EMD)
Computational Fluid Dynamics (CFD)
Extended Kalman Filter (EKF)
Opis:
Determination of ship maneuvering models is a tough task of ship maneuverability prediction. Among several prime approaches of estimating ship maneuvering models, system identification combined with the full-scale or free- running model test is preferred. In this contribution, real-time system identification programs using recursive identification method, such as the recursive least square method (RLS), are exerted for on-line identification of ship maneuvering models. However, this method seriously depends on the objects of study and initial values of identified parameters. To overcome this, an intelligent technology, i.e., support vector machines (SVM), is firstly used to estimate initial values of the identified parameters with finite samples. As real measured motion data of the Mariner class ship always involve noise from sensors and external disturbances, the zigzag simulation test data include a substantial quantity of Gaussian white noise. Wavelet method and empirical mode decomposition (EMD) are used to filter the data corrupted by noise, respectively. The choice of the sample number for SVM to decide initial values of identified parameters is extensively discussed and analyzed. With de-noised motion data as input-output training samples, parameters of ship maneuvering models are estimated using RLS and SVM-RLS, respectively. The comparison between identification results and true values of parameters demonstrates that both the identified ship maneuvering models from RLS and SVM-RLS have reasonable agreements with simulated motions of the ship, and the increment of the sample for SVM positively affects the identification results. Furthermore, SVM-RLS using data de-noised by EMD shows the highest accuracy and best convergence.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2017, 11, 1; 23-29
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A review of Silurian fishes from north-western Hunan, China and related biostratigraphy
Autorzy:
Zhao, W. -J.
Zhu, M.
Gai, Z. -K.
Pan, Z. -H.
Cui, X. -D.
Cai, J. -C.
Powiązania:
https://bibliotekanauki.pl/articles/139181.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
early vertebrates
biostratigraphy
Silurian
north-western Hunan
China
kręgowce
biostratygrafia
sylur
Hunan
Chiny
Opis:
The Silurian fishes from north-western Hunan, China are characterised by the earliest known galeaspids Dayongaspis Pan and Zeng, 1985 and Konoceraspis Pan, 1992, and the earliest known antiarch Shimenolepis Wang J.-Q., 1991, as well as rich sinacanth fin spines. Shimenolepis from Lixian County in north-western Hunan, which was dated as the Telychian (late Llandovery), has long been regarded as the oldest representative of the placoderms in the world. As such, in addition to eastern Yunnan and the Lower Yangtze Region, north-western Hunan represents another important area in South China that yields important fossil material for the research of early vertebrates and related stratigraphy. Here we summarise the Silurian fishes known in north-western Hunan so far, and classify them into three vertebrate assemblages (i.e., the Wentang, Maoshan, and Yangtze assemblages). Based on the updated Silurian vertebrate and stratigraphic databases, the Silurian fish-bearing strata in north-western Hunan can be subdivided into the Rongxi, Huixingshao, and Xiaoxi formations in ascending chronological order, which can be correlated with the Lower Red Beds, the Upper Red Beds, and the Ludlow Red Beds in South China, respectively. A new look at the Silurian strata in Lixian suggests that the age of Shimenolepis is late Ludlow rather than late Llandovery as previously suggested. The research on Silurian fishes and biostratigraphy in north-western Hunan not only provides morphological data of early vertebrates, but also offers new palaeoichthyological evidence for the subdivision, correlation, and age assignment of the Silurian marine red beds in South China. The establishment of a related high-precision Silurian stratigraphic framework in north-western Hunan will help to elucidate the temporal and spatial distribution of Silurian fossil fishes, deepen the understanding of the evolution of early vertebrates, and unravel the coevolution between Silurian vertebrates and the palaeoenvironment.
Źródło:
Acta Geologica Polonica; 2018, 68, 3; 475-486
0001-5709
Pojawia się w:
Acta Geologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Automatic Laser Interferometer And Vision Measurement System For Stripe Rod Calibration
Autorzy:
Zhao, M.
Huang, Q.-H.
Zhu, L.-J.
Qiu, Z.-M.
Powiązania:
https://bibliotekanauki.pl/articles/221047.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
stripe edge
automatic control
laser interferometer
vision measurement
Opis:
In order to calibrate the stripe precision of a leveling rod, an automatic laser interferometer and a vision measurement system were designed by Xi’an University of Technology in China. The rod was driven by a closed-loop control and the data were collected at the stop state to ensure precision. The laser interferometer provided not only the long distance data but also a position feedback signal in the automatic control loop. CCD camera and a vision measurement method were used to inspect the stripe edge position and defect. Apixel-equivalent self-calibration method was designed to improve precision. ROI (regions of interest) method and an outline tracing method were designed to quickly extract multiple stripe edges. A combination of the image data with the interferometer data reduces control difficulty and ensures the measurement accuracy. The vision measurement method reached sub-pixel precision and the defective edges were reported. The system can automatically calibrate a stripe leveling rod with a high degree of efficiency and precision.
Źródło:
Metrology and Measurement Systems; 2015, 22, 4; 491-502
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Molecular characterization and expression patterns of ghrelin in the reindeer (Rangifer tarandus)
Autorzy:
Zhang, M.
Xu, X.
Zhu, X.
Jin, X.
Bao, H.
Dugeer, S.
Du, C.
Cao, G.
Yang, Y.
Powiązania:
https://bibliotekanauki.pl/articles/2087780.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
ghrelin
reindeer (Rangifer tarandus)
cDNA cloning
structural characterization
tissue expression
Źródło:
Polish Journal of Veterinary Sciences; 2018, 21, 1; 55-64
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
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:
Magnetoresistance of Si/Nb/Si Trilayers
Autorzy:
Zaytseva, I.
Cieplak, M.
Abal'oshev, A.
Dluzewski, P.
Grabecki, G.
Plesiewicz, W.
Zhu, L.
Chien, C.
Powiązania:
https://bibliotekanauki.pl/articles/1537220.pdf
Data publikacji:
2010-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
74.62.-c
74.25.F-
74.25.Ha
74.62.En
Opis:
We study the superconductor-insulator transition in Si/Nb/Si trilayers, in which the thickness of Si is fixed at 10 nm, and the nominal thickness of Nb changes in the range between d = 20 nm down to d = 0.3 nm. The transmission electron microscopy indicates the formation of the mixed Nb-Si layer for small d. Both the thickness-induced, and the magnetic-field induced superconductor-insulator transition is observed. The crossing point of the isotherms at the critical field $B_{c}$ decreases with decreasing d, and it is T-independent at temperatures below 300 mK. At larger fields the weak peak in magnetoresistance appears in some of the films.
Źródło:
Acta Physica Polonica A; 2010, 118, 2; 406-408
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study on the Photochromic Properties of Coloured Luminous Fibres Based on PA6
Badanie fotochromicznych właściwości barwionych luminescencyjnych włókien PA6
Autorzy:
Yan, Y.
Zhu, Y.
Ge, M.
Powiązania:
https://bibliotekanauki.pl/articles/233005.pdf
Data publikacji:
2016
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
Tematy:
SrAl2O4
Eu2+
Dy3+
luminous fibre
luminescent property
colour characterization
włókno luminescencyjne
charakterystyka kolorów
Opis:
Coloured PA6 luminous fibres were prepared by adding luminous material and inorganic pigments. The morphology and optical properties of the coloured PA6 luminous fibres were characterized. The results revealed that luminous materials were dispersed uniformly in the fibres without obvious agglomerates. The yellow inorganic pigment and luminous material might induce a reduction in the PA 6 fibre crystallization degree. The luminous fibres emitted long-lasting phosphorescence with an excitation peak at 360 nm and emission peak at 515 nm. However, the excitation spectrum of the PA6-Y exhibited three peaks. The decay curves revealed that the yellow inorganic pigment enhanced the brightness of PA6 luminous fibres. The PA 6 luminous fibres had low colour purities and a high colour rendering index. There was no obvious difference among the emissive colours of the luminous fibres, and the colours of luminous fibres were similar to those of the pigments added.
Barwione luminescencyjne włókna PA6 przygotowano przez dodanie materiałów luminescencyjnych i pigmentów nieorganicznych. Scharakteryzowano właściwości morfologiczne i optyczne barwionych luminescencyjnych włókien PA6. Wyniki wykazały, że materiały luminescencyjne były rozproszone równomiernie we włóknach bez widocznych aglomeratów. Żółte pigmenty nieorganiczne i materiał luminescencyjny mogą powodować obniżenie stopnia krystalizacji włókien PA6. Włókna luminescencyjne emitowały długotrwałą fosforescencję z pikiem drgań przy 360 nm. Krzywe zaniku wykazały, że żółty pigment nieorganiczny zwiększa jasność luminescencyjnych włókien PA6. Luminescencyjne włókna PA6 charakteryzowały się niską czystością kolorów i wysokim współczynnikiem oddawania barw. Nie stwierdzono żadnej różnicy pomiędzy kolorami emisji luminescencyjnych włókien; barwy luminescencyjnych włókien były podobne do barwy dodanych pigmentów.
Źródło:
Fibres & Textiles in Eastern Europe; 2016, 3 (117); 38-43
1230-3666
2300-7354
Pojawia się w:
Fibres & Textiles in Eastern Europe
Dostawca treści:
Biblioteka Nauki
Artykuł
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