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    Wyświetlanie 1-14 z 14
    Tytuł:
    Investigation of Microstructures and Mechanical Properties of T92 Martensitic Steel/Super304 Austenitic Steel Weld Joints Made with Three Welding Consumables
    Autorzy:
    Liang, Z.
    Gui, Y.
    Zhao, Q.
    Powiązania:
    https://bibliotekanauki.pl/articles/354971.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    dissimilar welding
    welding material
    microstructures
    mechanical properties
    Opis:
    The microstructures and mechanical properties of T92 martensitic steel/Super304 austenitic steel weld joints with three welding consumables were investigated. Three types of welding materials ERNiCr-3, ERNiCrCoMo-1and T-304H were utilized to obtain dissimilar welds by using gas tungsten arc weld (GTAW). The results show that heat affect zone (HAZ) of T92 steel consists of coarse-grained and fine-grained tempered martensites. The microstructures of joints produced from ERNiCrCoMo-1 consist of equiaxed dendrite and columnar dendrite grains, which are more complicated than that of ERNiCr-3. In the tensile tests, joints constructed from ERNiCrCoMo-1 and T-304H met the ASME standard. The highest fracture energy was observed in specimens with the welding material ERNiCrCoMo-1. Ni content in weld seam of ERNiCrCoMo-1 was highest, which was above 40%. In conclusion, the nickel alloy ERNiCrCoMo-1 was the most suitable welding material for joints produced from T92 martensitic steel/Super304 austenitic steel.
    Źródło:
    Archives of Metallurgy and Materials; 2018, 63, 3; 1249-1256
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dynamic stability of a stepped drillstring conveying drilling fluid
    Autorzy:
    Zhao, G.-H.
    Tang, S.
    Liang, Z.
    Li, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/280899.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
    Tematy:
    drill string
    stepped fluid-conveying pipe
    complex frequency
    stability
    FEM
    Opis:
    Taking into account differences between a drill pipe (DP) and a drill collar (DC), the drillstring in a vertical well is modeled as a stepped pipe conveying a drilling fluid downwards to the bottom inside the string and then upwards to the ground from the annulus. An analytical model that describes lateral vibration of the drillstring and involves the drillstring gravity, weight on bit (WOB), hydrodynamic force and damping force of the drilling fluid is established. By analysis of complex frequencies, the influences of WOB, borehole diameter, DP length, velocity and density of the drilling fluid on the stability of the system are discussed.
    Źródło:
    Journal of Theoretical and Applied Mechanics; 2017, 55, 4; 1409-1422
    1429-2955
    Pojawia się w:
    Journal of Theoretical and Applied Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Investigation on biomass performance of a submerged membrane bioreactor for treating soy sauce wastewater
    Autorzy:
    Lv, S.
    Liang, Z.
    Li, X.
    Fan, H.
    Zen, Y.
    Powiązania:
    https://bibliotekanauki.pl/articles/206949.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    discharge limit
    membrane bioreactor (MBR)
    mixed liquor suspended solids
    polishing steps
    pollutants removal
    submerged membrane bioreactors
    treated wastewate
    retencja osadu
    bioreaktor membranowy MBR
    koagulacja
    etapy polerowania
    Opis:
    A pilot study for investigating a membrane bioreactor (MBR) performance in treating soy sauce wastewater was divided into three stages. At stage 1, the MBR was operated without excess sludge withdrawal, and pollutants removal increased gradually and entered into a pseudo-stable phase eventually along with increasing mixed liquor suspended solid (MLSS). At stage 2, the growth of biomass and removal of pollutants were obviously decreased by lowering temperature. At stage 3, membrane permeate flux and sludge yield under various MLSSs were studied. Additional polishing steps including coagulation and oxidation were validated to be effective to ensure the treated wastewater to meet the discharge limits.
    Źródło:
    Environment Protection Engineering; 2016, 42, 1; 135-148
    0324-8828
    Pojawia się w:
    Environment Protection Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Somaclonal variation in winter wheat [Triticum aestivum L.]: frequency, occurrence and inheritance
    Autorzy:
    Cheng, X Y
    Gao, M.W.
    Liang, Z.Q.
    Liu, G.Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/2044461.pdf
    Data publikacji:
    1998
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    inheritance
    tissue culture
    Triticum aestivum
    occurrence
    in vitro
    winter wheat
    gene mutation
    plant breeding
    callus induction
    frequency
    somaclonal variation
    wheat
    embryo
    Opis:
    Plants were regenerated from immature embryo cultures of 35 winter wheat genotypes. General responses of regenerated plants were investigated and a total of 7142 R₂ spike lines from 1593 R₁ plants were assessed in the field for somaclonal variants in 1985/86, 1986/87 and 1987/88. Selected variants were studied for their possible genetic inheritance. From regenerated plantlets, 81% survived and 63% produced fertile plants. Forms with reduced plant height, length of spike and other morphological abnormalities were found in this progeny. Populations of R₁ plants were highly variable due mainly to the physiological disturbances resulting from the in vitro process. Overall somaclonal variation frequencies were 14.2% per plant basis and 5.3% per R₂ spike basis. The variants were similar in the three different R₂ generations with predominant variants being negative in plant height, maturity, awns, spike type and plant type. Both uniform R₂ variant families and spike lines were found in addition to the segregating variants which constituted the majority. On average, in a variant family or line, 18% and 14% of their component lines and plants were variants, respectively. Inheritability was demonstrated for the uniform variant families and spike lines as well as segregated variants. Of those 134 selections, about 70% were classified as inheritable. Both recessive and dominant gene mutations at one, two or three loci were evident in some variants as suggested by the segregating data.
    Źródło:
    Journal of Applied Genetics; 1998, 39, 1; 59-72
    1234-1983
    Pojawia się w:
    Journal of Applied Genetics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Invariants for Time-Dependent Harmonic Oscillators from the Real Representation of Solution
    Autorzy:
    Liang, M.-L.
    Zhang, Z.-G.
    Yuan, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/2037140.pdf
    Data publikacji:
    2004-03
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    45.20.Jj
    03.65.-w
    Opis:
    The invariants for the time-dependent one-dimensional harmonic oscillator and the time-dependent two-dimensional harmonic oscillator in a static magnetic field are derived from the real representation of the exact solution to the equation of motion. Mathematically, the orthogonal functions invariant is the angular momentum of an isotropic time-dependent two-dimensional harmonic oscillator. Based on the invariants obtained here, the wave function for time-dependent two-dimensional harmonic oscillator in a static magnetic field in cylindrical coordinate is simply derived and the dynamical and geometrical phases are easily got by expressing the wave function as the superpositions of the wave functions of time-dependent two-dimensional harmonic oscillator in rectangular coordinate. For the driven system, the driving induced dynamical phase and the geometrical phase are respectively associated with the classical Hamiltonian and de Broglie wave of the center motion of the wave function.
    Źródło:
    Acta Physica Polonica A; 2004, 105, 3; 253-262
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Seasonal patterns and environmental drivers of nirS- and nirK-encoding denitrifiers in sediments of Daya Bay, China
    Autorzy:
    Shi, R.
    Xu, S.
    Qi, Z.
    Huang, H.
    Liang, Q.
    Powiązania:
    https://bibliotekanauki.pl/articles/958171.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    seasonal pattern
    environmental factor
    denitrifier
    community structure
    nirS-encoding
    nirK-encoding
    sediment
    chemical characteristics
    physiological characteristics
    Daya Bay
    China
    Źródło:
    Oceanologia; 2019, 61, 3
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Signal analysis on soil stress from vibrating compaction based on wavelet transform
    Autorzy:
    Qing-Zhe, Z.
    Bing, Y.
    Jing-Liang, D.
    Bao-Gui, Y.
    Powiązania:
    https://bibliotekanauki.pl/articles/231144.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    grunt
    zagęszczanie wibracyjne
    naprężenia ściskające
    analiza sygnałów
    transformata falkowa
    wykrywanie osobliwości
    soil
    vibrating compaction
    compressive stress
    signal analysis
    wavelet transform
    singularity detection
    Opis:
    The paper presented the wavelet transform method for de-noising and singularity detection to soil compressive stress signal. The study results show that the reconstruction signals by the wavelet de-noising keeps the low frequency component at [0, 31.25Hz] of the original signal and improves the high frequency property at other frequency bands. The impaction time from the start time to resonance time of the stress signals varies with the depth of the soil. With the increase of times of compaction, the impaction time of the stress is decreasing in every layer. But the speed of reaching compacted status in each layer is different.
    Źródło:
    Archives of Civil Engineering; 2014, 60, 2; 257-268
    1230-2945
    Pojawia się w:
    Archives of Civil Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of luteinizing hormone regulation of maturation and apoptosis, expression of LHR and FSHR in cumulus-oocyte complexes in Lanzhou fat-tailed sheep
    Autorzy:
    Wei, S.C.
    Deng, Y.Y.
    Lai, L.J.
    Liang, H.Q.
    Lin, G.Z.
    Gong, Z.D.
    Powiązania:
    https://bibliotekanauki.pl/articles/2087862.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    In vitro maturation
    apoptosis
    luteinizing hormone
    cumulus oocyte complexes
    Caspase-3
    receptor
    Źródło:
    Polish Journal of Veterinary Sciences; 2017, 4; 759-768
    1505-1773
    Pojawia się w:
    Polish Journal of Veterinary Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Study of loading and running characteristic of hydraulic support in underhand mining face
    Badanie obciążenia i działania podpór hydraulicznych w przodku nachylonym
    Autorzy:
    Jing-Yi, C.
    Yi-Dong, Z.
    Liang, C.
    Ming, J.
    Wei, G.
    Lin-Sheng, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/218960.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    przodek nachylony
    kąty depresji
    charakterystyka pracy podpory hydraulicznej
    stabilność podpory
    diclinic working face
    large depression angle
    running characteristic of support
    stability of support
    Opis:
    According to complex geological conditions of working face E1108 in Xin-ji mine #2, loading and running characteristic of hydraulic support, influence of depression angle on mining pressure behaviors, as well as relation between advancing speed and the support loading were measured and analyzed. The results indicate that depression angle is inversely proportional to support resistance, in other words, larger depression angle area coincides with lower support resistance area. Moreover, support resistance is generally high when working face advancing speed is slow. Technologies for controlling hydraulic support stability such as improving advancing speed properly, controlling mining height and increasing support resistance are put forward based on research.
    Z uwzględnieniem złożonych warunków geologicznych w ścianie E1108 w kopalni Xin-Ji #2 dokonano pomiarów i analiz obciążenia i działania podpór hydraulicznych, zbadano wpływ kąta depresji na wielkość ciśnienia poziomu wydobywczego, a także zależność pomiędzy szybkością posuwania się na przodku i obciążeniem podpór. Wyniki analiz wskazują, że kąt depresji jest odwrotnie proporcjonalny do wytrzymałości podpory. Przy większych wartościach kąta depresji mamy do czynienia z obszarem gdzie wytrzymałość podpór jest niższa. Ogólnie rzecz biorąc, wytrzymałość podpory jest zazwyczaj wysoka dla niewielkich prędkości posuwania się na przodku. W pracy przedstawiono metody kontroli stabilności podpór hydraulicznych poprzez regulację szybkości posuwania się przodka, regulację wysokości wybierania oraz poprzez zwiększenie wytrzymałości podpór.
    Źródło:
    Archives of Mining Sciences; 2017, 62, 1; 215-224
    0860-7001
    Pojawia się w:
    Archives of Mining Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The impacts of BSMV on vegetative growth and water status in hulless barley (Hordeum vulgare var. nudum) in VIGS study
    Autorzy:
    Liang, J.
    Chen, X.
    Zhao, H.
    Yu, S.
    Long, H.
    Deng, G.
    Pan, Z.
    Yu, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/57548.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    Hordeum vulgare var.nudum
    hulled barley
    barley
    BSMV zob.barley stripe mosaic virus
    barley stripe mosaic virus
    vegetative growth
    water status
    VIGS zob.virus induced gene silencing method
    virus induced gene silencing method
    Opis:
    Barley stripe mosaic virus (BSMV) is an established and extensively used virus-induced gene silencing (VIGS) vector for gene function analysis in monocots. However, the phenotypes generated by targeted gene silencing may be affected or masked by symptoms of BSMV infection. To better understand the potential effects of BSMV-VIGS in hulless barley (Hordeum vulgare var. nudum), the accumulation pattern of BSMV and its impacts on vegetative growth and water status were investigated. The results indicated that the vegetative growth of infected plants was significantly and continuously impacted by BSMV from 10 to 40 days post inoculation (dpi). When the accumulation of BSMV was extremely high (7 to 11 dpi), infected plants displayed twisted leaf tips with an increased water lose rate (WLR) and decreased water content (WC). Virus accumulation declined and stabilized after 25 dpi, at this stage, the WLR and WC were unaffected in the infected plants. The efficiency of VIGS was tested by the silencing of Phytoene desaturase (PDS). RT-qPCR indicated that BSMV-VIGS can be sustained with good efficiency for up to 40 dpi under an altered condition with lower temperature (22 ±1°C) and higher relative humidity (70 ±10%). It was concluded that 25 to 40 dpi was the appropriate time zone for drought-related gene analysis by BSMV-VIGS under such condition.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2015, 84, 1
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    TaqMan real-time PCR for detecting bovine viral diarrhea virus
    Autorzy:
    Liang, H.
    Geng, J.
    Bai, S.
    Aimuguri, A.
    Gong, Z.
    Feng, R.
    Shen, X.
    Wei, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/2087557.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    bovine viral diarrhea virus
    quantitative real time PCR
    TaqMan probe
    Źródło:
    Polish Journal of Veterinary Sciences; 2019, 2; 405-413
    1505-1773
    Pojawia się w:
    Polish Journal of Veterinary Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Tests and analyses on mechanical characteristics of dwarf-dense-early major cotton variety stalks
    Autorzy:
    Liang, R.
    Chen, X.
    Zhang, B.
    Peng, X.
    Meng, H.
    Jiang, P.
    Li, J.
    Zhou, P.
    Kan, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/2082915.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    cotton stalk
    dwarf-dense-early
    multiple factors
    mechanical characteristics
    Opis:
    The influence of the variation in water content, sampling location and loading speed on the shearing and across-compression mechanical characteristics of dwarf-denseearly major cotton variety stalks was analysed. The second-order response models of the factors vs. the maximum shear force and critical across-compression failure force were built using the response surface methodology. Besides, the sampling location and water content have a significant influence over the maximum shear force and critical across-compression failure force, especially the sampling location. Both the maximum shear force and critical across-compression failure force reach a theoretical maximum when the water content is 10%, the sampling location is the lower part and the loading speed is 40 mm min-1. When the sampling location is the lower part, optimization is carried out assuming the theoretical minimum of the maximum shear force and critical across-compression failure force as the optimization target. In this case, the loading speed is 20 mm min-1, while the water content is between 30 and 50%. This indicates that the parameter range requires a low power consumption during the crushing of film residue mixtures. The test data can provide some theoretical references for the technical research and equipment development for the crushing of film.
    Źródło:
    International Agrophysics; 2020, 34, 3; 333-342
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The distribution of different virulence grass carp reovirus strains in some neglected tissues
    Autorzy:
    Liang, H.R.
    Fu, X.Z.
    Li, N.Q.
    Liu, L.H.
    Lin, Q.
    Li, Y.G.
    Peng, Y.A.
    Huang, Z.B.
    Wu, S.Q.
    Powiązania:
    https://bibliotekanauki.pl/articles/30668.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Źródło:
    Polish Journal of Veterinary Sciences; 2016, 19, 4
    1505-1773
    Pojawia się w:
    Polish Journal of Veterinary Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Optimal expression and purification of sapelovirus A structural protein VP1, and its immunogenicity in mice
    Autorzy:
    Zhao, T.T.
    Cui, L.
    Chen, L.
    Li, J.J.
    Liang, Q.L.
    Wu, P.J.
    Yu, X.Q.
    Zhang, Z.H.
    Hua, X.G.
    Powiązania:
    https://bibliotekanauki.pl/articles/2087686.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    sapelovirus A
    prokaryotic expression
    purification
    Źródło:
    Polish Journal of Veterinary Sciences; 2018, 21, 3; 573-579
    1505-1773
    Pojawia się w:
    Polish Journal of Veterinary Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-14 z 14

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