Autor: Feng, L. - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Peripheral challenge by Small and Medium Sized Ports (SMPs) in Multi-Port Gateway Regions: the case study of northeast of China
Autorzy:: Feng, L.
Notteboom, T.
Tematy:: SMPS
BER
small and medium-sized enterprises (SMEs); Pokaż więcej
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Powiązania:: https://bibliotekanauki.pl/articles/259285.pdf Link otwiera się w nowym oknie
Opis:: This paper focuses on the role of small and medium-sized ports (SMPs) in enhancing the competitiveness and logistics performance of multi-port gateway regions and associated inland logistics systems. The concepts developed will be applied to the ports in the northeast of China, a multi-port gateway region around the Bohai Sea Economic Rim (BER). Port competition is analyzed by multi-variable methodology and generalized common characteristics of SMPs compared to gateway ports, and the similarities of SMPs and SMEs are also compared. Later in this paper, we analyze the role of a SMP in such region in different variables: (a) cargo volume and market share; (b) international connectivity; (c) relative cluster position; (d) port city and hinterland connection; and (e) logistics and distribution function. The five-dimension analysis combined with in-depth cases study of typical Yingkou port describes a profile of SMPs in the BER and provides future study possibility for more SMPs cases worldwide.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Endogenous timing in a vertically differentiated mixed duopoly with Cournot competition
Autorzy:: Feng, L.
Gu, M.
Tematy:: vertical differentiation
endogenous timing
public firm
private firms; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/229227.pdf Link otwiera się w nowym oknie
Opis:: This paper compares the equilibrium outcomes under simultaneous and sequential output setting in a mixed duopoly in a vertically differentiated market. When the timing of the output game is determined endogenously, it is shown that simultaneous play in the quality stage with the public firm acting as the high-quality producer and simultaneous play in the second period in the output stage turn out to be the unique subgame perfect Nash equilibrium, which contrasts with the endogenous timing in a purely private duopoly.
Dostawca treści:: Biblioteka Nauki

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na półce

Skocz do pozycji: 3.

Tytuł:: Niewidzialne światy
Autorzy:: Feng, Jonathan L.
Współwytwórcy:: Trodden, Mark.
Tematy:: 52
Ciemna materia
Kosmologia; Pokaż więcej
Cytata wydawnicza:: Świat Nauki 2010, nr 12, s. 32-37
Dostawca treści:: Bibliografia

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na półce

Skocz do pozycji: 4.

Tytuł:: Niewidzialne światy
Autorzy:: Feng, Jonathan L.
Współwytwórcy:: Trodden, Mark.
Tematy:: 52
Ciemna materia
Kosmologia; Pokaż więcej
Cytata wydawnicza:: Świat Nauki 2010, nr 12, s. 32-37
Dostawca treści:: Bibliografia

Artykuł

na półce

Skocz do pozycji: 5.

Tytuł:: Fabrication, Structural Characterization and Optical Properties of the Flower-Like ZnO Nanowires
Autorzy:: Feng, L.
Liu, A.
Ma, Y.
Liu, M.
Man, B.
Tematy:: 81.07.Bc
81.05.Dz
81.10.Aj; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Powiązania:: https://bibliotekanauki.pl/articles/1538755.pdf Link otwiera się w nowym oknie
Opis:: Multipod flower-like zinc oxide (ZnO) nanowires have been successfully synthesized on Si(111) substrates using a pulsed laser deposition prepared Zn film as "self-catalyst" by the simple thermal evaporation oxidation of the metallic zinc powder at 850°C without any other catalysts or additives. The pre-deposited Zn films by pulsed laser deposition on the substrates can promote the formation of the ZnO nuclei effectively. Also it can further advance the growth of the flower-like ZnO nanowires accordingly. X-ray diffraction, scanning electron microscope, high-resolution transmission electron microscopy, Fourier transform infrared spectrum, and photoluminescence were used to analyze the structure, morphology, composition and optical properties of the as-synthesized products. The results demonstrate that the nanowires were single crystalline with hexagonal wurzite structure, grown along the [0001] in the c-axis direction. Room temperature photoluminescence spectrum of the ZnO nanowires shows a nearband-edge ultraviolet emission (peak at ≈ 384 nm) and a deep-level green emission (peak at ≈ 513 nm). In addition, the growth mechanism of the flower-like ZnO nanowires is discussed in detail.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Adsorption mechanism of sodium oleate on titanium dioxide coated sensor surface using quartz crystal microbalance with dissipation
Autorzy:: Fan, G.
Liu, J.
Cao, Y.
Feng, L.
Xu, H.
Tematy:: QCM-D
TiO2 coated sensor surface
sodium oleate
adsorption mechanism; Pokaż więcej
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Powiązania:: https://bibliotekanauki.pl/articles/110014.pdf Link otwiera się w nowym oknie
Opis:: Quartz Crystal Microbalance with Dissipation (QCM-D) was firstly applied to investigate the adsorption mechanism of sodium oleate on TiO2 coated sensor surface. The effects of pH value, sodium oleate concentration, and temperature on TiO2 coated sensor surface were evaluated systematically using the QCM-D technique. Zeta potential, surface tension, adsorption isotherms, and adsorption thermodynamics were employed to characterize the adsorption process. The results showed the advantages of QCM-D on the investigation of the adsorption process. Additionally, the electrostatic equilibrium adsorption data was well matched to the Langmuir isotherm. Based on the thermodynamic analysis, adsorption was a spontaneous and endothermic physisorption process.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Enrichment, Separation, and Recovery of Phosphorus from Dephosphorization Slag
Autorzy:: Yan-Ling, Z.
Ming, G.
Feng-Shan, L.
Kan, Y.
Tematy:: phosphorus enrichment
selective enrichment and growth
P-rich phase
magnetic separation; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/354800.pdf Link otwiera się w nowym oknie
Opis:: A better understanding of phosphorus distribution in slag is necessary to develop an effective way to treat dephosphorization slag formed during steelmaking. Here, previous studies on the enrichment, separation, and recovery of phosphorus from dephosphorization slag are reviewed, along with their influencing factors. The results suggest that a proper heat treatment can promote the selective enrichment and growth of P-rich phases. Further, adding P₂O₅ and Fe_tO facilitates phosphorus enrichment. Also, Ca₃(PO₄)₂ is precipitated from slag containing 18 wt% P₂O₅. MnO and MgO in the slag barely affect the phosphorus recovery. In contrast, the addition of Al₂O₃ and TiO₂ significantly affects phosphorus enrichment and magnetic separation. A phosphorus recovery rate of more than 70% is achieved with the addition of 10 wt% Al₂O₃ or 10 wt% TiO₂. New phases (Na₂Ca₄(PO₄)₂SiO₄, Na₃PO₄, and Ca₅(PO₄)₃F) tend to be formed on the addition of Na₂O and CaF₂, which promote phosphorus enrichment. However, the addition of Na₂O and CaF₂ results in the incomplete separation of phosphorus and iron, as CaF₂ and Na₂O improve slag metallization and the magnetism of iron-rich phases.
Dostawca treści:: Biblioteka Nauki

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na półce

Skocz do pozycji: 8.

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.
Tematy:: porcine circovirus type 2 (PCV2)
screening of MAbs
paper test; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Powiązania:: https://bibliotekanauki.pl/articles/16539073.pdf Link otwiera się w nowym oknie
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.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 9.

Tytuł:: Valence and Core-Valence Effects in N-Like Kr, Rb and Sr Ions
Autorzy:: Hao, L.
Feng, H.
Kang, X.
Tematy:: 31.30.Gs
32.30.-r; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Powiązania:: https://bibliotekanauki.pl/articles/1398681.pdf Link otwiera się w nowym oknie
Opis:: Energy levels, wavelengths, transition rates and line strengths are reported for the $2s^2$ $2p^3-2s2p^{4}$ transition array in Kr(XXX), Rb(XXXI) and Sr(XXXII). Wave functions were determined using the multiconfiguration Dirac-Fock method with account for valence and core-valence correlation effects. The present results are presented and compared with experimental data and with values from other calculations. The calculated values including core-valence correlation are in good agreement with other available theoretical and experimental values, and therefore can be used for the further astrophysical investigations.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Numerical simulation of spontaneously condensing flows in a plane turbine cascade
Autorzy:: Li, L.
Li, G.
Feng, Z.
Tematy:: wet steam
condensing flow
Eulerian/Eulerian model
numerical simulation; Pokaż więcej
Wydawca:: Politechnika Gdańska
Powiązania:: https://bibliotekanauki.pl/articles/1986685.pdf Link otwiera się w nowym oknie
Opis:: The low efficiency of wet steam turbine is mainly attributed to wetness losses. To investigate the mechanisms which give rise to these losses, a fully Eulerian model has been developed for calculation of the wet steam flows with spontaneous condensation. In this model, the liquid phase is described with two conservation equations in Eulerian form and coupled with a solver of gas dynamics equations. With such a model, the existing code for simulation of single-phase flows can easily be changed to include wet steam two-phase flows in wet steam turbines. A numerical simulation of condensing flow in a plane turbine cascade is performed, and the numerical results are presented and compared with the experimental results.
Dostawca treści:: Biblioteka Nauki

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