Autor: Yang, J.-L. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Toxicity of antimony, gallium, and indium toward a teleost model and a native fish species of semiconductor manufacturing districts of Taiwan
Autorzy:: Yang, J.-L.
Chen, L.-H.
Powiązania:: https://bibliotekanauki.pl/articles/13555.pdf
Data publikacji:: 2018
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Źródło:: Journal of Elementology; 2018, 23, 1
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The influence of hydraulic loading on biofilm properties in a subsurface wastewater infiltration system
Autorzy:: Zhang, L.
Yang, J.
Powiązania:: https://bibliotekanauki.pl/articles/205392.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: subsurface wastewater infiltration system
biofilms
hydraulic loading
spatial distribution
biofilm properties
Opis:: In this study, a pilot-scale subsurface wastewater infiltration system (SWIS) was deployed to study landscape water treatment. The goal of the study was to investigate the effects of hydraulic loading on pollutant removal and the spatial distribution of biofilm properties in SWIS. Results showed that the efficiencies of chemical oxygen demand (COD), total nitrogen (TN) and total phosphorus (TP) removal degraded as hydraulic loading increased. Furthermore, quantities of the biofilm properties parameter s increased with the hydraulic loading. Polysaccharide and protein levels ranged from 560 to 1110 μg/g filler and 60 to 190 μg/g filler, respectively, at a hydraulic loading of 0.2 m/d. At a hydraulic loading of 0.4 m/d, the quantities of polysaccharide and protein ranged from 1200 to 3300 μg/g filler and 80 to 290 μg/g filler, respectively. Biofilm intensity and biofilm activity per unit weight decreased with the increase in hydraulic loading.
Źródło:: Archives of Environmental Protection; 2016, 42, 4; 70-79
2083-4772
2083-4810
Pojawia się w:: Archives of Environmental Protection
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Microbial communities and relationship with biofilm spatial distributions in subsurface wastewater infiltration systems
Autorzy:: Zhang, L.
Yang, J.
Powiązania:: https://bibliotekanauki.pl/articles/207883.pdf
Data publikacji:: 2016
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: water treatment
wastewater infiltration system
DGGE
volatile suspended solids
oczyszczanie ścieków oczyszczanie wody
systemy infiltracji ścieków
lotne zawiesiny
Opis:: A pilot-scale subsurface wastewater infiltration system (SWIS) was designed for the treatment of polluted river water. The components of microbial communities have been identified and characterized and their dependences on some indicators of biofilm formation in the SWIS have been determined. The average efficiencies of COD, TN and removal were 43.3%, 28.8% and 79.6%, respectively. According to the denaturing gradient gel electrophoresis (DGGE) profile, high intensity and uniform bands were generated, indicating an abundant microbial community in each layer of the SWIS. Furthermore, the Shannon index analysis showed high correlation to the spatial distribution of microbial communities as well as the quantity of biofilm in each sample, which were characterized by measuring volatile suspended solids (VSS), phospholipids, proteins and polysaccharides. Sequencing of partial 16S rRNA gene fragments revealed that the composition of the total bacterial communities was dominated by Alphaproteobacteria, Gammaproteobacteria, Deltaproteobacteria, Pseudomonas, Bacillus, Flavobacteriaceae, TM-7, and other uncultured bacteria. These bacteria may contribute to nutrient removal in SWIS. +4 NH –N
Źródło:: Environment Protection Engineering; 2016, 42, 3; 55-69
0324-8828
Pojawia się w:: Environment Protection Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Theoretical study of the effect of probe shape on adhesion force between probe and substrate in atomic force microscope experiment
Autorzy:: Yang, L.
Hu, J.
Kong, L.
Powiązania:: https://bibliotekanauki.pl/articles/949319.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: probe shape
adhesion force
van der Waals force
capillary force
relatively humidity
liquid bridge
Opis:: The quantitative description of adhesion force dependence on the probe shapes are of importance in many scientific and industrial fields. In order to elucidate how the adhesion force varied with the probe shape in atomic force microscope manipulation experiment, we performed a theoretical study of the influences of the probe shape (the sphere and parabolic probe) on the adhesion force at different humidity. We found that the combined action of the triple point and the Kelvin radius guiding the trend of the adhesion force, and these two fundamental parameters are closely related to the probe shape. Whilst, the theoretical results demonstrate that the adhesion force is in good agreement with the experiment data if the van der Waals force is taken into account.
Źródło:: Journal of Theoretical and Applied Mechanics; 2015, 53, 1; 235-241
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Intelligent decision system based on the evidential reasoning approach and its applications
Autorzy:: Xu, D. L.
Yang, J. B.
Powiązania:: https://bibliotekanauki.pl/articles/308996.pdf
Data publikacji:: 2005
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: multicriteria decision support systems
knowledge management
intelligent decision system
evidential reasoning approach
Opis:: Intelligent decision system (IDS) is a window-based software package that has been developed on the basis of the evidential reasoning (ER) approach, a recent development in handling hybrid multiple criteria decision analysis (MCDA) problems with uncertainties. In this paper, the evidential reasoning approach will be briefly described first, and its major differences from and the relationships with conventional MCDA methods will also be discussed. Then the main features, advantages and benefits of IDS will be demonstrated and explained using two application examples: supplier pre-qualification assessment and customer satisfaction survey analysis, which have been investigated as part of the research projects led by the authors and funded by the UK government and the EC. It is concluded in the paper that the ER approach can be used not only to deal with problems that traditional methods can solve, but also to model and analyse more complicated decision problems that traditional methods are incapable of handling.
Źródło:: Journal of Telecommunications and Information Technology; 2005, 3; 73-80
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Rejuvenating older apple trees by root pruning combined with arbuscular mycorrhizal fungi
Autorzy:: Zhang, J.
Liu, J.
Zhang, Z.
Pan, S.
Yang, L.
Yang, S.
Powiązania:: https://bibliotekanauki.pl/articles/11855204.pdf
Data publikacji:: 2017
Wydawca:: Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Opis:: Older apple trees often demonstrate physiologically unreasonable shoot distribution due to root system aging, which results in lower fruit yield and poor fruit quality. Therefore this study was conducted to test whether root pruning combined with arbuscular mycorrhizal fungi could restore growth potential of fortyyear-old Red Fuji apple trees (Malus × domestica Borkh.) in a commercial orchard in 2013, by root pruning along both sides of rows, 80 cm from the trunk, to a depth of 30 cm and application of 100 ml arbuscular mycorrhizal inoculum per plant. Results showed that the percentage of root colonized by mycorrhizal fungi increased as root pruning was combined with arbuscular mycorrhizal fungi, however mycorrhizal colonization was not seen in the control roots and roots only by root pruning. For control tree total number of shoots decreased by 28.22% in 2015 than in 2013 and shoots mainly distributed in the outer canopy accounting for 58.10% of the total, which caused the lower light intensity inside the canopy, followed by lower fruit yield and poor fruit quality. Compared to control plant, shoot reduced by 33.96 and 38.51% in the outer canopy but increased by 97.99 and 123.69% in the inner canopy in 2015, as well as 390.20 and 478.43% in the vertical height of 1.5 to 2.5 m canopy, respectively treated by root pruning alone and combined with arbuscular mycorrhizal fungi. Root pruning alone and combined with arbuscular mycorrhizal fungi also raised the relative light intensity by 38.71 and 60.26% in the inner canopy in 2015, subsequent fruit yield by 315.79 and 373.68% respectively, in comparison to control plant. Shoot re-distribution improved fruit quality such as increase in firmness and soluble solid. Data indicated that the effect of root pruning combined with arbuscular mycorrhizal fungi on the rejuvenation of older apple trees was stronger than root pruning alone. It is therefore concluded that root pruning combined with arbuscular mycorrhizal fungi can think of as a measure to renew the older apple trees.
Źródło:: Acta Scientiarum Polonorum. Hortorum Cultus; 2017, 16, 3; 27-35
1644-0692
Pojawia się w:: Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Three dimensional finite element analysis of a novel osteointegrated dental implant designed to reduce stress peak of cortical bone
Autorzy:: Zheng, L.
Yang, J.
Hu, X.
Luo, J.
Powiązania:: https://bibliotekanauki.pl/articles/306937.pdf
Data publikacji:: 2014
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: MES (metoda elementów skończonych)
implant
stomatologia
rozkład naprężeń
FEA
CT
dental implant
design
cervical cortex
stress distribution
Opis:: A new type of dental implant was designed as multi-component mainly including inset and abutment between which a gap was introduced to guide the force to transmit from the cancellous bone to cortical bone, with the intention to lower the stress peak at cortical bone. By the way of finite element analysis (FEA) associated with advanced computer tomography (CT) and 3D model reconstruction technology to construct precise mandible model, biomechanical aspects of implant were investigated. Compared with traditional implant that created stress dominantly at cortical bone, stress peak at the implant/bone interface in the cervical cortex decreased sharply (about 51%) for new type of implant. Furthermore, varying implant shape and gap dimensions to optimize the design of this new implant was performed. Optimization results revealed that: 1) screwed cylindrical implant is superior to tapered, stepped and smooth cylindrical implant in effectively decreasing the stress peak of bone; 2) deepening and widening gap would contribute to the decline of stress peak, but at the cost of break and destruction of the inset; 3) suitable gap size with the depth of 7mm and width of 0.3mm would be applicable. This work may provide reference forclinical application of dental implant.
Źródło:: Acta of Bioengineering and Biomechanics; 2014, 16, 3; 21-28
1509-409X
2450-6303
Pojawia się w:: Acta of Bioengineering and Biomechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: The demand analysis of oceanic T-S-V 3D reconstruction on wide-swath SSH data features based on ROMS and 4DVAR
Autorzy:: Zhou, C.
Zhang, J.
Yang, J.
Cao, L.
Powiązania:: https://bibliotekanauki.pl/articles/2079186.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:: sea surface
anomaly
wide-swath altimeter
3D reconstruction
accuracy
Regional Ocean Modelling System
demand analysis
Opis:: Future wide-swath altimetry missions will provide high-resolution information about ocean surface elevation, and facilitate the characterization of meso- and sub-mesoscale ocean activities. In this study, the demand analysis of three-dimensional (3D) oceanic state reconstruction on wide-swath SSH data features was evaluated using a data assimilation strategy. Three groups of experiments were performed to determine if the wide-swath altimetry observations would improve the three-dimensional (3D) field estimates of ocean temperature-salinity-velocity (T-S-V), and to evaluate how the spatial and temporal resolution and accuracy of the wide-swath altimetry observations affected the ocean state estimation. The Regional Ocean Modeling System and the four-dimensional variational data assimilation method were used in the experiments, with numerical simulation for the Taiwan region at a resolution of 1/10° as the example. The sensitivity of the 3D ocean state construction to the wide-swath altimetry measurements was also investigated. The results showed that the wide-swath sea surface height (SSH) measurements would have an overall positive impact on the 3D T-S-V field and that the positive effect would increase as the resolution and accuracy of the observations increased, but the net benefits would gradually decrease. Among the three examined features of the wide-swath altimetry observations, the temporal resolution had the most influence on the 3D ocean state analysis.
Źródło:: Oceanologia; 2020, 62, 3; 309-325
0078-3234
Pojawia się w:: Oceanologia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Energetic Nitrogen-rich Salts
Autorzy:: Wu, J.-W.
Zhang, J.-G.
Zhang, T.-L.
Yang, L.
Powiązania:: https://bibliotekanauki.pl/articles/358479.pdf
Data publikacji:: 2015
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:: energetic salts
synthesis
characterization
crystal structure
review
Opis:: Energetic salts as a unique class of energetic materials have recently been investigated widely, since they possess advantages over their atomically similar nonionic analogues – they tend to exhibit lower vapor pressures, higher densities and better thermal stabilities. Furthermore, these salts are readily improved upon by the appropriate combination of different cations and anions. Over the last twenty years, our group has continued to synthesize and study novel ionic energetic materials. Here, we have summarized all of the series of nitrogen-rich energetic salts. This review gives an overview of the various studies dealing with synthetic aspects and some of the physicochemical properties of ionic compounds that are based on ammonia, guanidine, semicarbazide, carbohydrazide, tetrazine, tetrazole, triazole and imidazole. In addition, their potential applications in the fields of explosives and propellants are discussed. We hope these investigations will be helpful in providing a wider insight for future research in the area of energetic salts.
Źródło:: Central European Journal of Energetic Materials; 2015, 12, 3; 417-437
1733-7178
Pojawia się w:: Central European Journal of Energetic Materials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Analytic Equation of State and Thermodynamic Properties, for α-, β-, and γ-Si₃N₄ Based on Analytic Mean Field Approach
Autorzy:: Wang, L.
Sun, J.
Yang, W.
Tian, R.
Powiązania:: https://bibliotekanauki.pl/articles/1812044.pdf
Data publikacji:: 2008-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 64.10.+h
65.40.-b
61.66.Fn
Opis:: The analytic mean field potential approach is applied to α-, β-, and γ-Si₃N₄. The analytic expressions for the Helmholtz free energy, internal energy, and equation of state were derived. The formalism for the case of the Morse potential is used in this work. Its six potential parameters are determined through fitting the compression experimental data of α-, β-, and γ-Si₃N₄. The calculated compression curves of α-, β-, and γ-Si₃N₄ are in good agreement with the available experimental data. This suggests that the analytic mean field potential approach is a very useful approach to study the thermodynamic properties of Si₃N₄. Furthermore, we predict the variation of the free energy and internal energy with the molar volume at several higher temperatures and calculate the temperature dependence of the molar volume, bulk modulus, thermal expansion coefficient and isochoric heat capacity at zero pressure.
Źródło:: Acta Physica Polonica A; 2008, 114, 4; 807-818
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Nano-sized micelles formed by self-assembling of polylactide(ethylene glycol) block copolymers in aqueous solutions
Autorzy:: Yang, L.
Zhao, Z.
Wei, J.
Li, S.
Powiązania:: https://bibliotekanauki.pl/articles/284952.pdf
Data publikacji:: 2007
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:: kopolimery
copolymers
Źródło:: Engineering of Biomaterials; 2007, 10, no. 63-64; 16-18
1429-7248
Pojawia się w:: Engineering of Biomaterials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Analysis of large particle sizes using a machine vision system
Autorzy:: Zhang, Z.
Yang, J.
Su, X.
Ding, L.
Powiązania:: https://bibliotekanauki.pl/articles/109404.pdf
Data publikacji:: 2013
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: machine vision
particle size distribution
equivalent ellipse
best-fit rectangle
representing analysis
Opis:: Many methods based on machine vision were used to estimate coarse particles size distribution in recent years, but comparison of accuracy parameters representing particle size has not been carried out and a related representing analysis has not been yet proposed. Nine parameters were investigated. The results indicated the minor axis of equivalent ellipse and breadth of the best-fit rectangle were the most suitable for representing particle size. The former accuracy ratio was 86.43% and the latter accuracy ratio was 85.39%, while the accuracy of other parameters was less than 70%. A related representing analysis was proposed to explain this phenomenon. This research is instructive and meaningful for the size distribution estimation by machine vision.
Źródło:: Physicochemical Problems of Mineral Processing; 2013, 49, 2; 397-405
1643-1049
2084-4735
Pojawia się w:: Physicochemical Problems of Mineral Processing
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: ABA alleviated soybean seedling stress exposed to UV-C radiation
Autorzy:: Yang, L.
Gao, N.
Yang, Y.
Zhang, Y.
Gao, J.
Sun, Y.
Powiązania:: https://bibliotekanauki.pl/articles/2082655.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: ultraviolet-C
ABA
active oxygen metabolism
flavonoids
soybean
Opis:: In order to understand the roles of abscisis acid in soybean exposed to UV-C radiation, soybean seedlings were exposed to UV-C radiation and ABA was applied. The chlorophyll content, active oxygen metabolism and flavonoids content of soybean seedlings were investigated. The present study revealed that UV-C radiation significantly attenuated the chlorophyll content and suppressed PSII activity. It was observed that the contents of H2O2, malondialdehyde and O2 - were markedly increased, and the activities of antioxidant enzymes such as superoxide dismutase, peroxidase and catalase were enhanced, so were the flavonoids content, whereas the seedling height and biomass were significantly reduced. ABA application improved the activities of superoxide dismutase, peroxidase, catalase and the contents of flavonoids, decreased the contents of H2O2, MDA and O2 -, and also increased the chlorophyll content and enhanced PSII performance, thus enhancing biomass accumulation. The results suggested that ABA alleviated UV-C damage to soybean seedlings by reducing ROS generation and enhancing antioxidase activity. The isoflavones daidzin and genistein were significantly responsive to UV-C.
Źródło:: International Agrophysics; 2020, 34, 1; 115-121
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Positron Annilation Lifetime and Glass Transition Temperatures in $CO_2$ Sorption Polystyrene
Autorzy:: Jean, Y.
Chen, H.
Lee, L.
Yang, J.
Powiązania:: https://bibliotekanauki.pl/articles/1812530.pdf
Data publikacji:: 2008-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 78.70.Bj
78.66.Qn
71.60.+z
Opis:: Positron annihilation lifetime spectroscopy was used to measure the free-volume size and distributions as a function of temperature in polystyrene with and without 400 psi $CO_2$ sorption. The transition temperatures in the polystyrene with $CO_2$ sorption obtained from ortho-positronium lifetimes were found to depend on the thermal cycles and a meta-stable state showing a negative thermal expansion coefficient was observed between 53°C and 82°C during the first heating up experiment. The observed $T_g$ in polystyrene with, and without $CO_2$ sorption after annealing from ortho-positronium lifetimes were found to be 86°C and 91°C, which are 5°C higher, and 10°C lower than from the differential scanning calorimetry data, respectively. The observed free-volume variations are discussed in terms of hole expansion, creation, free-volume relaxation, plasticization, and hole filling in amorphous polymers.
Źródło:: Acta Physica Polonica A; 2008, 113, 5; 1385-1395
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Experimental study on damage detection of base-isolated structure using an adaptive extended Kalman filter
Autorzy:: Yin, Q.
Zhou, L.
Mu, T.
Yang, J. N.
Powiązania:: https://bibliotekanauki.pl/articles/280160.pdf
Data publikacji:: 2013
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: damage detection
adaptive extended Kalman filter
base-isolated structure
Opis:: In this paper, experimental studies are performed and presented to verify the capability of the adaptive extended Kalman filter (AEKF) approach for identifying and tracking damages in nonlinear structures. A base-isolated building model consisting of a scaled building model mounted on a rubber-bearing isolation system has been tested experimentally in the laboratory. The non-linear behavior of the base isolators is represented by the Bouc-Wen model. To simulate the structural damages during the test, an innovative device, referred to as the stiffness element device (SED), is proposed to reduce the stiffness of the upper storey of the structure. Various damage scenarios have been simulated and tested. The measured acceleration response data and the AEKF approach are used to track the variation of the stiffness during the test. The tracking results for the stiffness variations correlate well with that of the referenced values. It is concluded that the AEKF approach is capable of tracking the variation of structural parameters leading to the detection of damages in nonlinear structures.
Źródło:: Journal of Theoretical and Applied Mechanics; 2013, 51, 4; 1013-1026
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 16.

Tytuł:: Explanation of the Optical Spectra and Spin-Hamiltonian Parameters for Nickel(II) in Cadmium Bromide Crystal
Autorzy:: Gong, J.
Wang, L.
Feng, W.
Yang, X.
Zhang, F.
Powiązania:: https://bibliotekanauki.pl/articles/1493631.pdf
Data publikacji:: 2011-09
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.70.Ch
75.10.Dg
61.72.Bb
76.30.Fc
Opis:: Based on crystal- and ligand-field theory, double-spin-orbital coupling approach was used to analyze the crystal-field energy levels and spin-Hamiltonian parameters of $Ni^{2+}$ ion at trigonal site in $CdBr_2$. The local lattice distortion (Δ R and $τ_{Ni^{2+}}$) is estimated from the crystal field parameters; the crystal field energy Hamiltonian was diagonalized in the full basis consisting of 45 wave functions of the $Ni^{2+}$ ion. Results of calculations are in good agreement with experimental data. The reasonableness of the theoretical results is discussed.
Źródło:: Acta Physica Polonica A; 2011, 120, 3; 497-500
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 17.

Tytuł:: Biosorption of Pb(II) and Zn(II) by Extracellular Polymeric Substance (Eps) of Rhizobium Radiobacter : Equilibrium, Kinetics and Reuse Studies
Autorzy:: Wang, L.
Yang, J.
Chen, Z.
Liu, X.
Ma, F.
Powiązania:: https://bibliotekanauki.pl/articles/204971.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: biosorption
extracellular polymeric substance
EPS
Rhizobium radiobacter
heavy metal
kinetics
Opis:: The extracellular polymeric substance (EPS) produced from Rhizobium radiobacter F2, designated as EPS_F2 , was investigated as a biosorbent for the removal of Pb(II) and Zn(II) from aqueous solution. The optimum biosorption pH values were 5.0 for Pb(II) and 6.0 for Zn(II). Kinetics study revealed that the biosorption followed pseudo-first-order model well, and the equilibrium data fit the Langmuir model better. The adsorbed metal ions could be effectively desorbed by HCl. Desrobed EPS_F2 regained 80% of the initial biosorption capacity after five cycles of biosorption-desorption-elution. These results demonstrated that EPSF2 could be a promising alternative for Pb(II) and Zn(II) removal from aqueous solution.
Źródło:: Archives of Environmental Protection; 2013, 39, 2; 129-140
2083-4772
2083-4810
Pojawia się w:: Archives of Environmental Protection
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 18.

Tytuł:: Experimental and numerical investigations on dynamic tensile behavior of a ZrB₂-SiC ceramic
Autorzy:: He, R.
Cao, J.
Yang, K.
Wang, L.
Kong, D.
Powiązania:: https://bibliotekanauki.pl/articles/38695710.pdf
Data publikacji:: 2023
Wydawca:: Instytut Podstawowych Problemów Techniki PAN
Tematy:: ZrB2-SiC ceramic
dynamic tensile properties
fracture pattern
strain rate
peridynamic model
Opis:: The dynamic tensile behavior of a ZrB₂-SiC ceramic was investigated via split Hopkinson pressure bar tests and a bond-based peridynamic model. The experimental results showed that the peak dynamic splitting tensile stress increased linearly with the strain rate. The dynamic tensile stress history and fracture pattern exhibited a significant strain-rate dependence. In simulation, the strain-rate dependent on the critical energy release rate was introduced to predict the dynamic tensile behavior of the ZrB₂-SiC ceramic. The numerical results were in good agreement with the experimental results, verifying the applicability of the peridynamic model. The maximum error of the peak dynamic splitting tensile stress between the experimental and numerical results was no greater than 6%. Moreover, the effect of the strain rate on the fracture patterns of the ZrB₂-SiC ceramic composite can be well predicted by the peridynamics method. The ZrB₂-SiC composite specimen split into two large fragments with additional small fragments under dynamic splitting tension. With the increase of strain rate, the main crack propagation and branching led to a larger fracture region in the middle of the specimen.
Źródło:: Archives of Mechanics; 2023, 75, 1-2; 53-73
0373-2029
Pojawia się w:: Archives of Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 19.

Tytuł:: Ab Initio Study of He Migrations in Fcc Au-Ag Alloys
Autorzy:: Zhu, Z.
Zhang, Y.
Xie, J.
Yang, L.
Nie, J.
Zu, X.
Powiązania:: https://bibliotekanauki.pl/articles/1398923.pdf
Data publikacji:: 2016-06
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 66.30.J-
81.05.Bx
71.15.Mb
Opis:: Ab initio calculations based on the density functional theory have been performed to investigate the migrations of interstitial helium (He) atoms in Au-Ag alloys with two different mass ratios (Au₃Ag₂ and AuAg). The results show that the migration mechanisms of He atoms mainly depend on the crystal structures of alloys, and their migration energy barriers are affected by the migration paths in Au-Ag alloys. He interstitials preferentially occupied the most stable sites, but it is difficult for He interstitials to migrate to nearest most stable sites via second stable positions at room temperature. When He atom is at the tetrahedral position which has higher formation energy, it possibly migrates to nearest tetrahedral positions directly for AuAg alloy. In addition, comparing the migration of He defects in the two alloys, we found that the properties of migration energy and relative stability of He atoms probably slightly depend on the mass-density of Au-Ag alloys.
Źródło:: Acta Physica Polonica A; 2016, 129, 6; 1151-1154
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 20.

Tytuł:: Mechanical touch responses of Arabidopsis TCH1-3 mutant roots on inclined hard-agar surface
Autorzy:: Zha, G.
Wang, B.
Liu, J.
Yan, J.
Zhu, L.
Yang, X.
Powiązania:: https://bibliotekanauki.pl/articles/24565.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: mechanical touch response
mechanical touch simulation
Arabidopsis
TCH1-3 gene
mutant
root growth
Źródło:: International Agrophysics; 2016, 30, 1
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 21.

Tytuł:: Semiconductor Superlattices with Small Band Offsets - feature article
Autorzy:: Yang, G.
Lewandowski, L. A.
Furdyna, J. K.
Ram-Mohan, L. R.
Powiązania:: https://bibliotekanauki.pl/articles/1968871.pdf
Data publikacji:: 1998-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 78.66.-w
Opis:: Optical transitions in small band offset superlattices are studied within the framework of the nearly free electron approximation, in which the weak superlattice potential is treated as a perturbation. Interband selection rules are derived for transitions involving conduction and valence band states at the superlattice Brillouin zone center and the zone edge. It is found that a number of new transitions can occur in such small-offset superlattices due to wave function mixing of different subband states. The effect of the effective mass on the optical transitions is also discussed. The theory is used to explain the results observed in magneto-optical absorption experiment in ZnSe/Zn$\text{}_{1-x}$Mn$\text{}_{x}$Se small-offset superlattices. Furthermore, the nearly free electron formulation is found to be in excellent agreement with rigorous multi-band numerical calculation on superlattices involving small band offsets.
Źródło:: Acta Physica Polonica A; 1998, 93, 4; 567-600
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 22.

Tytuł:: Ag+/S2O8 2– system for the degradation of aqueous flutriafol
Autorzy:: Yang, H.
Zhou, W.
Yang, L.
Deng, J.
Hu, Q.
Wei, H.
Au, C.
Yi, B.
Powiązania:: https://bibliotekanauki.pl/articles/207760.pdf
Data publikacji:: 2018
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: chemical analysis
degradation
free radicals
metal ions
molecular orbital
transition metals
analiza chemiczna
degradacja
wolne rodniki
jony metali
orbital molekularny
metale przejściowe
Opis:: The degradation of flutriafol in aqueous persulfate (S₂O₈^2–) system in the presence of selected transition metal ions was investigated. In the presence of Ag⁺ or Fe²⁺, flutriafol degradation occurs, whereas in the presence of Mn²⁺, Co²⁺, Ni²⁺, Cu²⁺, Zn²⁺ and Bi³⁺ ions, the degradation is less than 15%. The Ag+/ S₂O₈^2– aqueous system being the most effective was adopted for experimental and theoretical investigations. It was confirmed that pH of 3.0 is the most suitable, and that both · SO₄^–and ^·OH– radicals are the main active species to afford flutriafol degradation, with the former contributes more than the latter. To elucidate degradation mechanism, molecular orbital calculations were performed and reaction intermediates identified by GC/MS and HPLC/MS/MS analyses. Three degradation pathways are proposed that involve the cleavage of C–N and C–C bonds as a result of ^·SO₄^– attack, as well as the formation of hydroxylated products due to ^· OH radicals.
Źródło:: Environment Protection Engineering; 2018, 44, 2; 57-72
0324-8828
Pojawia się w:: Environment Protection Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 23.

Tytuł:: Analysis of the transcriptome of Potentilla sericea under cadmium stress conditions
Autorzy:: Wu, J.
Fan, W.
Gao, P.
Yang, Q.
Zhang, J.
Wang, L.
Powiązania:: https://bibliotekanauki.pl/articles/2130579.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Botaniczne
Tematy:: glutathione metabolism
sulfur metabolism
Opis:: Cadmium (Cd) stress significantly affects plant growth and development. Potentilla sericea is typically grown in gardens or as ground cover. In this study, the Cd response of P. sericea was analyzed based on physiological examinations and transcriptome analyses that uncovered the gene expression changes in P. sericea roots induced by a 7-day treatment with 90 μmol/L Cd2+. A total of 53,225 unigenes were identified, including 11,684 differentially expressed genes (DEGs; 8,083 upregulated and 3,601 downregulated). Additionally, 44 gene ontology terms and 127 Kyoto Encyclopedia of Genes and Genomes pathways were significantly enriched among these DEGs. Genes related to glutathione metabolism, plant hormone signal transduction, peroxisome processes, sulfur metabolism, and flavonoid biosynthesis pathways were confirmed as relevant to the Cd response of P. sericea. The molecular biology-related data described here may be useful for the future breeding of transgenic P. sericea plants with increased resistance to heavy metal stresses.
Źródło:: Acta Societatis Botanicorum Poloniae; 2020, 89, 4
0001-6977
2083-9480
Pojawia się w:: Acta Societatis Botanicorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 24.

Tytuł:: Construction of a recombinant baculovirus expressing swine hepatitis E Virus ORF2 and preliminary research on its immune effect
Autorzy:: Yang, Z.
Wang, K.
Hu, Y.
Yuan, P.
Yang, Y.
Xie, L.Y.
Huang, S.L.
Liu, J.
Ran, L.
Song, Z.H.
Powiązania:: https://bibliotekanauki.pl/articles/2087759.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: swine HEV
ORF2
baculovirus
immunogenicity
Źródło:: Polish Journal of Veterinary Sciences; 2018, 21, 1; 47-54
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 25.

Tytuł:: Molecular cloning and expression analysis of CML27 in Brassica oleracea pollination process
Autorzy:: Lian, X.P.
Zeng, J.
Zhang, H.C.
Yang, X.H.
Zhao, L.
Zhu, L.Q.
Powiązania:: https://bibliotekanauki.pl/articles/19583.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Źródło:: Acta Biologica Cracoviensia. Series Botanica; 2018, 60, 2
0001-5296
Pojawia się w:: Acta Biologica Cracoviensia. Series Botanica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 26.

Tytuł:: Parameter calibration for the discrete element simulation model of commercial organic fertilizer
Autorzy:: Xie, C.
Yang, J.
Wang, B.
Zhuo, P.
Li, C.
Wang, L.
Powiązania:: https://bibliotekanauki.pl/articles/2082983.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: commercial organic fertilizer
discrete element
repose angle
parameter calibration
parameters for the particle
model
Opis:: The parameters of a discrete element simulation model for commercial organic fertilizer particles were obtained both quickly and accurately, so that the uniformity and stability of the fertilizer discharged from the feeder may be studied using the discrete element simulation method. This study screened out the parameters which significantly influenced the repose angle of the commercial organic fertilizer using the Plackett-Burman test. Then, a model for the quadratic regression response surface of the repose angle vs the parameters was established through a Box-Behnken experiment with the measured repose angle of the fertilizer particles as the optimization index. The optimization results showed that the rolling friction coefficient and static friction coefficient between the fertilizer particles, as well as the optimal simulation parameter for the Johnson-Kendall-Roberts surface energy were 0.056, 0.355 and 0.011 J m-2, respectively. A discrete element simulation test was carried out with the optimal simulation parameters, and the repose angle error of the simulation test was found to be 0.40% relative to that of the physical test, which proved the accuracy and validity of the simulation parameters for the discrete element model of the organic fertilizer. The simulation results may provide the basic parameters for establishing a discrete element model of commercial organic fertilizer particles and investigating the performance of organic fertilizer feeders using the simulation method.
Źródło:: International Agrophysics; 2021, 35, 1; 107-117
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 27.

Tytuł:: Measurement of Surface Profile and Surface Roughness of Fibre-Optic Interconnect by Fast Fourier Transform
Autorzy:: Lin, C. S.
Yang, S. W.
Lin, H. L.
Li, J. W.
Powiązania:: https://bibliotekanauki.pl/articles/221117.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: surface profile
surface roughness
fibre end-face
fast Fourier transform
Opis:: This study proposes a surface profile and roughness measurement system for a fibre-optic interconnect based on optical interferometry. On the principle of Fizeau interferometer, an interference fringe is formed on the fibre end-face of the fibre-optic interconnect, and the fringe pattern is analysed using the Fast Fourier transform method to reconstruct the surface profile. However, as the obtained surface profile contains some amount of tilt, a rule for estimating this tilt value is developed in this paper. The actual fibre end-face surface profile is obtained by subtracting the estimated tilt amount from the surface profile, as calculated by the Fast Fourier transform method, and the corresponding surface roughness can be determined. The proposed system is characterized by non-contact measurement, and the sample is not coated with a reflector during measurement. According to the experimental results, the difference between the roughness measurement result of an Atomic Force Microscope (AFM) and the measurement result of this system is less than 3 nm.
Źródło:: Metrology and Measurement Systems; 2017, 24, 2; 381-390
0860-8229
Pojawia się w:: Metrology and Measurement Systems
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 28.

Tytuł:: Assessing soil environmental capacity on different land uses in a suburban area of Chengdu, China
Autorzy:: Yang, W.-L.
Zhou, W.-Y.
Wan, W.-X.
Gou, S.-Z.
Zhang, J.
Deng, S.-H.
Shen, F.
Wang, Y.-J.
Yang, H.
Luo, L.
Powiązania:: https://bibliotekanauki.pl/articles/207670.pdf
Data publikacji:: 2019
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: China
soil pollution
heavy metals
soil
vegetables
Chiny
zanieczyszczenie gleby
metale ciężkie
gleba
warzywa
Opis:: Wenjiang (China) is the area which undertakes high-intensity planting activities. Additionally, the soil environmental capacity has been a hot area of research as it plays a key role in environmental protection planning, environmental impact assessment and sustainable development. In this paper, the static model of soil environmental capacity is employed to investigate the distribution of residual soil environmental capacity in Wenjiang. The results show that the soil environmental capacity of mercury is the largest for industrial land while it is the lowest in garlic-rice planting areas; the soil environmental capacity of arsenic is the largest in city construction land while it is the lowest in ecological conservation zone; the soil environmental capacity of lead is the largest in city construction land while it is the lowest in garlic-rice planting areas; and the soil environmental capacity of chromium is the largest in city construction land while it is the lowest in garlic-rice planting areas.
Źródło:: Environment Protection Engineering; 2019, 45, 2; 55-67
0324-8828
Pojawia się w:: Environment Protection Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 29.

Tytuł:: Nondestructive Evaluation of Rubber Composites Using Terahertz Time Domain Spectroscopy
Niedestrukcyjna metoda oceny kompozytów kauczukowych przy użyciu spektroskopii z wykorzystaniem technologii wykrywania terahercowego
Autorzy:: Xu, F.
Duan Mu, Q. D.
Li, L. J.
Yang, D.
Xia, B.
Powiązania:: https://bibliotekanauki.pl/articles/232361.pdf
Data publikacji:: 2018
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
Tematy:: terahertz imaging
rubber composites
nondestructive testing
defects
wykrywanie terahercowe
materiały gumowe
badania nieniszczące
defect gumy
Opis:: In recent years, with the progress of science, more and more detection methods are being used in various fields. However, the nondestructive testing of nonmetallic materials still needs further study. In this paper, an analysis of the time domain characteristics of rubber materials using terahertz detection technology was carried out, obtaining different defect rubber material spectral characteristics as well as imaging results and data. The results show that the THz spectrum imaging technique can detect the thickness of rubber material in the 0.1 ~ 4.0 terahertz band, and the image is clear and the resolution high. Meanwhile the time domain waveform obtained is sensitive to the debonding defects of the sample rubber, is suitable for judging the overall performance of the rubber inner defect detection, and can provide the scientific basis for rubber material performance.
W artykule przedstawiono analizę charakterystyk materiałów gumowych z wykorzystaniem technologii wykrywania terahercowego, uzyskując różne charakterystyki spektralne defektów gumy, a także wyniki i dane obrazowe. Wyniki pokazały, że technika obrazowania widma THz może wykrywać grubość materiału gumowego w paśmie 0,1 ~ 4,0 terahercowym, a obraz jest wyraźny i ma wysoka rozdzielczość. W międzyczasie otrzymany przebieg domeny czasu jest wrażliwy na defekty badanej gumy, jest odpowiedni do oceny ogólnej wydajności wykrywania wewnętrznego defektu gumy i może zapewnić podstawy dla oceny właściwości materiału gumowego.
Źródło:: Fibres & Textiles in Eastern Europe; 2018, 1 (127); 67-72
1230-3666
2300-7354
Pojawia się w:: Fibres & Textiles in Eastern Europe
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 30.

Tytuł:: Udoskonalona metoda dopasowywania krzywych do danych niezawodnościowych uwzględniająca różnice między próbkami
Improved reliability data curve fitting method by considering samples distinction
Autorzy:: Sun, R.
Peng, W. W.
Huang, H. Z.
Ling, D. L.
Yang, J.
Powiązania:: https://bibliotekanauki.pl/articles/301283.pdf
Data publikacji:: 2012
Wydawca:: Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:: dopasowywanie krzywych
różnice między próbkami
ważenie danych
proces iteratywny
curve fitting
sample distinction
weigh assignment
iterative process
Opis:: W praktyce inżynieryjnej stykamy się z problemem wykorzystania zgromadzonych danych do oceny maszyn lub sprzętu. Dopasowywanie krzywych to metoda powszechnie używana do rozwiązywania tego typu problemów. W procedurze tej szeroko stosuje się metodę najmniejszych kwadratów. Jeżeli dane wejściowe dopasowywane krzywą można pogrupować tak by tworzyły oddzielne próbki, a różnice między próbkami w sposób oczywisty odzwierciedlają pewną właściwość dotyczącą gromadzenia danych, której nie można pominąć, to konwencjonalna metoda dopasowywania krzywych nie pozwala na analizę takich danych wejściowych. Aby przezwyciężyć to ograniczenie, przedstawiamy udoskonaloną metodę dopasowywania krzywych. Poprzez analizę danych wejściowych, możemy określić związek pomiędzy położeniem próbki a czynnikiem ważonym w dopasowaniu krzywej oraz wykorzystać czynniki ważone przy dopasowywaniu krzywej. Aby osiągnąć jak najdokładniejsze przybliżenie do krzywej rzeczywistej wprowadziliśmy procedurę iteratywną modyfikującą czynniki ważone. Zastosowanie zaproponowanej metody zilustrowano na przykładzie danych z badań niezawodnościowych.
In engineering practice, we face a problem of using some collected data to evaluate a kind of machine or equipment. Curve fitting is a common method to solve this problem. Least square method is wildly applied in this procedure. If the source data of curve fitting can be grouped in samples and the distinction of samples obviously express some character in source data collecting which cannot be ignored. Conventional curve fitting method cannot handle these source data. To deal with this disadvantage, we introduce an improved curve fitting method. Through source data analysis, we can find out the relationship between sample location and weight factor in curve fitting, and use these weight factors for curve fitting. To approach the true curve, we introduce an iterative procedure to modify the weight factors. An engineering example is given to illustrate this proposed method.
Źródło:: Eksploatacja i Niezawodność; 2012, 14, 1; 62-71
1507-2711
Pojawia się w:: Eksploatacja i Niezawodność
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 31.

Tytuł:: Investigation of Strain in II-VI Semiconductor Superlattices Using Electron Paramagnetic Resonance of Mn$\text{}^{++}$
Autorzy:: Furdyna, J. K.
Qazzaz, M.
Yang, G.
Montes, L.
Xin, S. H.
Luo, H.
Powiązania:: https://bibliotekanauki.pl/articles/1933687.pdf
Data publikacji:: 1995-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 78.66.-w
71.55.Gs
Opis:: We explore the possibility of using electron paramagnetic resonance (EPR) of Mn$\text{}^{++}$ for measuring uniaxial strain in II-VI superlattices. This work is motivated by the fact that the EPR spectrum of Mn$\text{}^{++}$ is very strongly affected by crystalline fields. Changes in a crystalline field which arise from strain are thus automatically expected to have a profound effect on the EPR spectrum. Consistent with this expectation, we have observed giant crystal field splittings of Mn$\text{}^{++}$ EPR lines in ZnTe/MnTe, CdTe/MnTe, and ZnTe/MnSe superlattices. The EPR spectra observed in these systems are ascribed to isolated Mn$\text{}^{++}$ ions diffused into the ZnTe or the CdTe layers from the respective MnTe or MnSe layers. In addition to providing precise information oii the magnitude and the sign of strain produced by lattice mismatch between the superlattice constituents, we show that the EPR spectrum also provides a direct measure of strain fluctuations in the layered medium.
Źródło:: Acta Physica Polonica A; 1995, 88, 4; 607-618
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 32.

Tytuł:: Angular Distribution of N-Doped Carbon Nanotubes in Alumina Membrane Channels: A High-Energy X-ray Diffraction Study
Autorzy:: Hawelek, L.
Brodka, A.
Dore, J.
Honkimäki, V.
Kyotani, T.
Yang, Q.
Burian, A.
Powiązania:: https://bibliotekanauki.pl/articles/1538877.pdf
Data publikacji:: 2010-02
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 61.05.cp
61.48.De
Opis:: An alignment study of multi-wall N-doped carbon nanotubes prepared by a template pyrolytic carbon deposition method inside channels of an alumina membrane has been performed using high-energy X-ray diffraction on the ID15B beamline at the European Synchrotron Radiation Facility (ESRF, Grenoble). The two-dimensional diffraction pattern of the deposited carbon nanotubes, recorded directly, within the alumina membrane, using an image plate detector, exhibits two non-continuous arcs corresponding to the 002 graphitic reflection. The following values of the angle between the axis of the carbon nanotubes lying along the membrane channels and the incident beam were taken for five positions: 0°, 30°, 45°, 60° and 90°. The anisotropic scattering distribution of the two-dimensional patterns indicates an orientational alignment of the nanotubes. The one-dimensional intensity patterns obtained by scanning around the circumference of the (0 0 2) ring have allowed an estimation of the angular distribution of the nanotubes axes.
Źródło:: Acta Physica Polonica A; 2010, 117, 2; 302-306
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 33.

Tytuł:: Dispersion-compensating en/decoder for a time-spreading/wavelength-hopping optical code-division multiplexing (OCDM) system
Autorzy:: Zheng, J.
Wang, R.
Pu, T.
Lu, L.
Fang, T.
Su, Y.
Li, L.
Yang, Q.
Chen, X.
Powiązania:: https://bibliotekanauki.pl/articles/174365.pdf
Data publikacji:: 2013
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: optical code-division multiplexing (OCDM)
fiber Bragg grating (FBG)
dispersion
Opis:: A novel dispersion-compensating fiber Bragg grating (FBG)-based en/decoder is proposed to compensate both the out-band and in-band dispersion in a time-spreading/wavelength-hopping (TS/WH) optical code-division multiplexing (OCDM) system. The experimental realization of such en/decoders only needs a uniform-pitch phase mask and a sub-micrometer precision moving stage. Such an en/decoder pair with the ability of compensating the dispersion of transmission in 20-km single mode fiber (SMF) is simulated and experimentally fabricated. Both the simulation and experimental results show that the decoded pulse can be recovered without any distortion owing to the elimination of dispersion.
Źródło:: Optica Applicata; 2013, 43, 3; 485-495
0078-5466
1899-7015
Pojawia się w:: Optica Applicata
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 34.

Tytuł:: U$\text{}_{P}$, 3U$\text{}_{P}$, 11U$\text{}_{P}$: Above-Threshold Ionization Revisited
Autorzy:: Yang, Baorui
Schafer, K. J.
Walker, B.
Kulander, K. C.
Dimauro, L. F.
Agostini, P.
Powiązania:: https://bibliotekanauki.pl/articles/1931385.pdf
Data publikacji:: 1994-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 32.80.Fb
31.90.+s
32.80.Rm
Opis:: Angular distributions of very high energy photoelectrons from Xe and Kr, excited by a 50 ps, 1054 um laser, are presented. In Xe strong, narrow structures 45° off the polarization axis appear on above-threshold ionization peaks within a limited energy range centered around 9U$\text{}_{P}$, where U$\text{}_{P}$ is the intensity-dependent ponderomotive energy. Under the same conditions the effect is much weaker in krypton. These structures are discussed using a very simple classical model as well as sophisticated single active electron calculations and the Keldysh-Faisal-Reiss theory. We conclude these structures are the result of single-electron dynamics involving rescattering of a tunneling component of the continuum wave function.
Źródło:: Acta Physica Polonica A; 1994, 86, 1; 41-50
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 35.

Tytuł:: Pharmacokinetics of diclofenac sodium injection in swine
Autorzy:: Yang, H.F.
Li, Y.J.
Li, Y.Y.
Huang, C.
Huang, L.X.
Bu, S.J.
Powiązania:: https://bibliotekanauki.pl/articles/2087550.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: diclofenac sodium injection
pharmacokinetics
bioavailability
swine
HPLC
Źródło:: Polish Journal of Veterinary Sciences; 2019, 2; 423-426
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 36.

Tytuł:: Serological and molecular evidence of Coxiella burnetii in samples from humans and animals in China
Autorzy:: El-Mahallawy, H.S.
Kelly, P.
Zhang, J.
Yang, Y.
Wei, L.
Tian, L.
Fan, W.
Zhang, Z.
Wang, C.
Powiązania:: https://bibliotekanauki.pl/articles/49293.pdf
Data publikacji:: 2016
Wydawca:: Instytut Medycyny Wsi
Źródło:: Annals of Agricultural and Environmental Medicine; 2016, 23, 1
1232-1966
Pojawia się w:: Annals of Agricultural and Environmental Medicine
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 37.

Tytuł:: A Comprehensive Study of the Electrostatic Discharge Sensitivity and Chargeability of Tris(carbohydrazide)zinc Perchlorate
Autorzy:: Li, Z.
Zeng, D.
Zhou, Z.
Zhou, M.
Zhang, T.
Huang, H.
Zhang, J.
Yang, L.
Powiązania:: https://bibliotekanauki.pl/articles/358298.pdf
Data publikacji:: 2014
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:: primary explosive
tris(carbohydrazide)zinc perchlorate
electrostatic discharge sensitivity
chargeability
Opis:: Most primary explosives are non-conductors, easily accumulate charge when contacting with and separating from other materials, and are sensitive to electrostatic discharge (ESD). In order to reduce the number of accidents caused by ESD initiation of primary explosives, studies on their electrostatic hazards are necessary. This work presents comprehensive experimental results of electrostatic discharge sensitivity and chargeability of tris(carbohydrazide)zinc perchlorate (ZnCP) under different conditions. The influences of the testing conditions, of devices, particle size, ambient temperature and relative humidity on the electrostatic discharge sensitivity and chargeability have been investigated in detail, and the quantitative regression equations obtained.
Źródło:: Central European Journal of Energetic Materials; 2014, 11, 4; 553-573
1733-7178
Pojawia się w:: Central European Journal of Energetic Materials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 38.

Tytuł:: Reconstruction of oviraptorid clutches illuminates their unique nesting biology
Autorzy:: Yang, T.-R.
Wiemann, J.
Xu, L.
Cheng, Y.-N.
Wu, X.-C.
Sander, P.M.
Powiązania:: https://bibliotekanauki.pl/articles/19933.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Instytut Paleobiologii PAN
Opis:: Oviraptorosaurs, a group of non-avian theropod dinosaurs from the Cretaceous of Asia and North America, left behind the most abundant and informative fossil evidence of dinosaur reproductive biology. Previous studies had suggested that oviraptorosaur reproductive biology represents an intermediate stage and exhibited unique modern avian traits. For instance, the adult-associated clutches were predominantly considered as evidence for brooding/thermoregulatory contact incubation (TCI) behaviors, whereas the hypotheses of laying or protection were neglected. Despite numerous oviraptorid egg clutches uncovered from China and Mongolia, their nest architecture and clutch arrangement were rarely investigated in detail. Here we present a comprehensive reconstruction of an oviraptorid clutch based on five new oviraptorid clutches from Jiangxi Province, China. A detailed examination of the new clutches reveals a partially-open oviraptorid nest that contains 3–4 rings of paired eggs (more than 15 pairs total) whose blunt end points toward the center devoid of eggs at an angle of 35–40°. Our detailed three-dimensional reconstruction indicates that the oviraptorid clutch has a unique architecture unknown from extant bird clutches, implying an apomorphic nesting mode. Such a unique nest architecture further contradicts the TCI hypothesis in oviraptorids, hindering sufficient heat transfer to the inner (lower) ring(s) of eggs. Moreover, the size of the new oviraptorid clutches (>30 eggs) is significantly larger than that of the adult-associated clutches (<22 eggs), raising the alternative hypothesis that the adult-associated clutches were uncompleted. This clue thus supports the hypothesis that the clutch-associated oviraptorid adults possibly represent females after an oviposition before a catastrophic sandstorm/flooding burial.
Źródło:: Acta Palaeontologica Polonica; 2019, 64, 3
0567-7920
Pojawia się w:: Acta Palaeontologica Polonica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 39.

Tytuł:: Influence of pick layouts on the performance of bolter miner cutting head
Autorzy:: Qiao, S.
Wang, A. L.
Xia, Y. M.
Liu, Z. Z.
Liu, J. S.
Yang, M.
Powiązania:: https://bibliotekanauki.pl/articles/88893.pdf
Data publikacji:: 2018
Wydawca:: Politechnika Wrocławska. Wydział Geoinżynierii, Górnictwa i Geologii. Instytut Górnictwa
Tematy:: optimum
pick layout
bolter miner
FEM
coal-rock cutting
load fluctuation
Opis:: A bolter miner is a new type of mining machinery with cutting and anchoring functions. In order to study the best pick layout of bolter miner cutting head. Based on the constitutive relation of Holmquist-Johnson-Cook (HJC), three simulation models of different cutting heads were established, and the whole crushing process of coal-rock was simulated by finite element method (FEM). The influence of the cutting head on the cutting performance under the condition of different rotational speeds and pick layouts was intensively studied. The results show that the relationship of load fluctuation coefficient among the three pick layouts is as follows: sequential type > hybrid type I > checkerboard type. The circumferential pick layouts can reduce the load fluctuation coefficient of cutting head. The rotational speed from 20 to 40 r/min, the torque linearly decreases with the increase of rotational speed. The rota-tional speed increases from 40 to 50 r/min, the cutting torque is relatively stable. The specific energy of chessboard type is relatively higher than the other three cutting heads. The difference of specific energy between sequential type and hybrid type I is not more than 5.5%, and the reality of the simulation is verified by cutting experiments. The results were successfully applied to the first shield type bolter miner in China.
Źródło:: Mining Science; 2018, 25; 147-160
2300-9586
2353-5423
Pojawia się w:: Mining Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 40.

Tytuł:: Selective reduction of PbSO4 to PbS with carbon and flotation treatment of synthetic galena
Autorzy:: Zheng, Y.-X.
Liu, W.
Qin, W.-Q.
Han, J.-W.
Yang, K.
Luo, H.-L.
Powiązania:: https://bibliotekanauki.pl/articles/110717.pdf
Data publikacji:: 2015
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: wastes
lead sulfate
reduction
carbon
lead sulfide
flotation
Opis:: In order to recover lead from the zinc leaching residues, a new technology involving selective reduction of lead sulfate to lead sulfide with carbon followed by flotation was investigated. The reduction thermodynamics of PbSO4 was discussed and the effects of molar ratio of C to PbSO4, reaction temperature and time were examined by thermogravimetry (TG) and XRD. Verification tests were further carried out to prove the conclusions of thermodynamic and TG analyses, and the transformation extent could reach 86.45% under the optimal roasting conditions. The prepared galena was then subjected to micro-flotation tests, and the highest lead recovery could reach up to 75.32%.
Źródło:: Physicochemical Problems of Mineral Processing; 2015, 51, 2; 535-546
1643-1049
2084-4735
Pojawia się w:: Physicochemical Problems of Mineral Processing
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 41.

Tytuł:: Rapid screening of monoclonal antibodies against porcine circovirus type 2 using colloidal gold-based paper test
Autorzy:: Jin, Q.Y.
Feng, L.L.
Wang, Y.B.
Li, P.
Yang, J.F.
Teng, M.
Chai, S.J.
Xing, G.X.
Zhang, G.P.
Powiązania:: https://bibliotekanauki.pl/articles/16539073.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:: porcine circovirus type 2 (PCV2)
screening of MAbs
paper test
Opis:: A proof of concept for using paper test as a suitable method in the production of monoclonal antibodies (MAbs) is reported. The paper test which detects antibodies against porcine circovirus type 2 (PCV2) using colloidal gold-labelled capsid protein as the antigen probe was applied exclusively in the screening of anti-PCV2 MAbs. It allowed the detection of 118 single cell clones within 30 min using naked eyes. MAbs with specific binding to authentic epitopes on the virus were selected using a blocking strategy in which the antibody was pre-incubated with PCV2 viral sample before applying to the test paper. Five hybridomas secreting MAbs against the capsid protein were obtained, with only three of them capable of binding to PCV2. The results were validated and confirmed using enzyme-linked immunosorbent assay and immunofluorescence assay. The paper test is simple, rapid, and independent on professional technicians and proves to be an excellent approach for the screening of MAbs against specific targets.
Źródło:: Polish Journal of Veterinary Sciences; 2022, 25, 1; 27-34
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 42.

Tytuł:: Photoexcitation Spectroscopy and Material Alteration with Free-Electron Laser
Autorzy:: Sturmann, J.
Albridge, R. G.
Barnes, A. V.
Gilligan, J.
Graham, M. T.
Mckinley, J. T.
Ueda, A.
Wang, W.
Yang, X.
Tolk, N. H.
Davidson, J. L.
Margaritondo, G.
Powiązania:: https://bibliotekanauki.pl/articles/1963341.pdf
Data publikacji:: 1997-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 79.20.La
79.20.Ds
63.20.-e
79.60.Jv
73.20.At
Opis:: As synchrotron radiation sources have been used for many experiments in the ultraviolet and X-ray regimes, the free-electron laser is an excellent source for a wide array of infrared-photon projects and applications. The free-electron laser delivers a beam of powerful tunable pulsed radiation which provides the opportunity for spatial and temporal localization of the energy delivered at any desired wavelength within the 2-10 μ regime. One application discussed employs the free-electron laser for spectroscopy as a probe of electronic and vibrational structures. Another application uses the free-electron laser beam as a tool for altering materials in a fundamentally new way.
Źródło:: Acta Physica Polonica A; 1997, 91, 4; 689-696
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 43.

Tytuł:: Identification of a linear epitope in the capsid protein of goose astrovirus with monoclonal antibody
Autorzy:: Dai, G.
Huang, X.
Liu, Q.
Li, Y.
Zhang, L.
Han, K.
Yang, J.
Liu, Y.
Xue, F.
Zhao, D.
Powiązania:: https://bibliotekanauki.pl/articles/16647377.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:: epitope
goose astrovirus
capsid protein
monoclonal antibody
Opis:: Goose astrovirus (GoAstV) is a novel avastrovirus that typically causes gosling gout and results in 2 to 20% mortality. GoAstV capsid protein is the sole structural protein, which is responsible for viral attachment, assembly, maturation as well as eliciting host antibodies. However, the epitopes within capsid protein have not been well studied. In this study, a monoclonal antibody, named 1D7, was generated against GoAstV capsid protein by hybridoma technology. Western blot results showed that this MAb could react with recombinant capsid protein expressed in E. coli. Also, it recognized the precursor of capsid protein, VP90 and VP70, in GoAstV-infected cells. Besides, excellent specificity of MAb 1D7 was further demonstrated in indirect immunofluorescence assay and immunohistochemical analysis. Epitope mapping results revealed that MAb 1D7 recognized the epitope 33QKVY 36 within Cap protein. Sequence alignment indicated that 33QKVY 36 is a conserved epitope among the isolates of goose astrovirus type 2 (GoAstV-2), suggesting the potential for its use in GoAstV-2 specific diagnostic assay. These findings may provide some insight into a function of the GoAstV capsid protein and further contribute to the development of diagnostic methods for GoAstV infection.
Źródło:: Polish Journal of Veterinary Sciences; 2022, 25, 4; 579-587
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 44.

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

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