Autor: Ju, Y. - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Effect of acid buffering capacity on the remobilization of heavy metals in sewage sludge barrier for tailings
Autorzy:: Chen, Y.
Zhang, H.
Ju, Y.
Tematy:: sewage sludge
heavy metals
acid mine drainage
acid buffering capacity
remobilization; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/205048.pdf Link otwiera się w nowym oknie
Opis:: Remobilization of heavy metals from the bottom liner system due to the seepage of acid mine drainage (AMD) is an important concern in the long-term management of tailing impoundment. Titration tests were carried out to evaluate the acid buffering capacity (ABC) of sewage sludge and to investigate its effect on the remobilization of heavy metals. Test results demonstrate that the ABC increases with solid/liquid ratio and anaerobic incubation time and it is mainly attributed to the abundant organic matters contained and increasing carbonate loads. The added heavy metals (Zn, Pb, and Cu) were well immobilized during the anaerobic incubation stage but were released out dramatically during the acidification especially when pH drops below 6.0 because of dissolution of carbonates and cation exchange of clay minerals. The calculated results, from a simplified model, indicate that high levels of remobilization of heavy metals are not expected during the typical management time because of the high ABC of compacted sewage sludge barrier. These results support that sewage sludge is a suitable bottom liner material for the management of AMD from tailings.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 2.

Tytuł:: Determination of optimal cyclic uniaxial stretches for stem cell-to-tenocyte differentiation under a wide range of mechanical stretch conditions by evaluating gene expression and protein synthesis levels
Autorzy:: Morita, Y.
Watanabe, S.
Ju, Y.
Xu, B.
Tematy:: hBMSC
differentiation
mechanical stretch
tenocyte
różniczkowanie
wydłużanie; Pokaż więcej
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Powiązania:: https://bibliotekanauki.pl/articles/951825.pdf Link otwiera się w nowym oknie
Opis:: We examined optimal cyclic uniaxial stretches for stem cell-to-tenocyte differentiation by applying a wide range of cyclic mechanical stimuli. Human bone marrow mesenchymal stem cells (hBMSCs) were subjected to three types of cyclic elongation of 5%, 10%, or 15% at a cyclic frequency of 1 Hz for 24 h or 48 h, and differentiation into tenocytes was assessed by two methods: real-time polymerase chain reaction determination of gene expression levels and western blotting analysis of protein expression levels. The gene expression levels of the differentiation markers type I collagen (Col I), type III collagen (Col III), tenascin-C (Tnc), and scleraxis (Scx), all of which are constituents of tendon tissue, were increased when cells were exposed to 10% stretching stimulation. The levels of Col I and Tnc protein synthesis levels were also higher in the cells with 10% stretching stimulation than in those subjected to other stimuli. The results indicated that 10% stretching stimulus was efficient to induce the differentiation of hBMSCs into tenocytes. In addition, the changes in gene and protein expression levels were strongly correlated with cell orientation angle. The results presented here suggest that mesenchymal stem cell-to-tenocyte differentiation is strongly associated with cumulative elongation load on the cells. This work provides novel insights into the differentiation of tenogenesis in a strain-induced environment and supports the therapeutic potential of hBMSCs.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 3.

Tytuł:: Ethnobotanical study on medicinal plants used by Li people in Ledong, Hainan Island, China
Autorzy:: Huang, W.
Li, P.
Liu, Y.
Ju, Y.
Wang, J.
Ntumwel, C.B.
Long, C.
Tematy:: ethnobotany
traditional knowledge
ethnomedicine
medicinal plant
Li ethnic group
ethnic group
Ledong county
Hainan Island
China; Pokaż więcej
Wydawca:: Polskie Towarzystwo Botaniczne
Powiązania:: https://bibliotekanauki.pl/articles/57864.pdf Link otwiera się w nowym oknie
Opis:: The paper documents on the uses of traditional medicinal plants used for treating human ailments in three villages of Ledong, a county inhabited by Liethnic group in the southwest of Hainan Province, China. Semi-structured interviews, key informant interviews and participatory observations were used to collect ethnobotanical data from February to March 2012 and in July 2013. The data collected was analyzed using descriptive statistics. Thirty native knowledgeable people were interviewed. The Li community uses 50 plant species in 36 families for medicinal purposes. The most common medicinal plant families were Leguminosae (14%), Compositae (6%), and Euphorbiaceae (6%), and the most common preparations methods were decoction (84%), crushing (38%), and poultice (34%). The traditional medicinal plants were mainly used for hemostasis (12.9%), body pains (11.4%), gastrointestinal disorders (11.4%), and trauma (10%). Twenty-four species of medicinal plants (48%) have never been reported in the literature of Li medicines. In addition, 22 species (44%) have already been studied by researchers and their extracts or compounds were good bioactives. However, the rapid socioeconomic development in the county is the main threat to the conservation of Li medicine and has resulted in the decrease in the abundance and use of medicinal plants and associated traditional knowledge. Other factors accounting for a decrease in the use of Li medicinal plants like loss of plant diversity, change of land use, and threatened traditional knowledge were equally discussed.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 4.

Tytuł:: Prace IPPT IFTR Reports ; 2/2008
Inelastic Behavior and Numerical Analysis in Twin-Roll Casting Process of AZ31 Alloy
Autorzy:: Hu, X. D.
Zhao, Z. H.
Ju, D. Y.
Współwytwórcy:: Sosnowski, Włodzimierz. Red.
Kotulski, Zbigniew (1955– ). Red.
Kowalczyk, Piotr Marian. Red.
Wydawca:: Instytut Podstawowych Problemów Techniki Polskiej Akademii Nauk
Powiązania:: Prace IPPT IFTR REPORTS
Opis:: Extended Abstracts of Conference Lectures
Rozszerzone streszczenia wykładów konferencyjnych
434-435 s.
Proceedings of the 36th Solid Mechanics Conference, Gdańsk, Poland, September 9-12, 2008
Dostawca treści:: RCIN - Repozytorium Cyfrowe Instytutów Naukowych

Książka

na półce

Skocz do pozycji: 5.

Tytuł:: Prace IPPT IFTR Reports ; 2/2008
Effect of Strain Path Change on Microstructure and Properties of Hot-rolled Q235 Steel
Autorzy:: Ju, D. Y.
Wang, J. G.
Jia, W. P.
Współwytwórcy:: Kowalczyk, Piotr Marian. Red.
Kotulski, Zbigniew (1955– ). Red.
Sosnowski, Włodzimierz. Red.
Wydawca:: Instytut Podstawowych Problemów Techniki Polskiej Akademii Nauk
Powiązania:: Prace IPPT IFTR REPORTS
Opis:: Proceedings of the 36th Solid Mechanics Conference, Gdańsk, Poland, September 9-12, 2008
188-189 s.
Rozszerzone streszczenia wykładów konferencyjnych
Extended Abstracts of Conference Lectures
Dostawca treści:: RCIN - Repozytorium Cyfrowe Instytutów Naukowych

Książka

na półce

Skocz do pozycji: 6.

Tytuł:: Dynamic Conductivity of Electrons and Electron-Phonon Interaction in Open Three-Well Nanostructures
Autorzy:: Tkach, M.
Seti, Ju.
Grynyshyn, Y.
Voitsekhivska, O.
Tematy:: 63.20.Kd
78.67.De
72.10.Di; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Powiązania:: https://bibliotekanauki.pl/articles/1401886.pdf Link otwiera się w nowym oknie
Opis:: The theoretical description of electronic tunneling transport through the three-well nanostructure $(In_{0.53}Ga_{0.47}As/In_{0.52}Al_{0.48}As)$, being an expanded active region of quantum cascade detector, is presented. Using the solution of the Schrödinger equation, the dynamic conductivity caused by quantum transitions due to the interaction of electrons with electromagnetic field and phonons is calculated. Within the Green functions approach, the electron spectrum, renormalized due to the interaction with confined optical and interface phonons is obtained at cryogenic and room temperatures. The role of different mechanisms of electron-phonon interaction in the formation of temperature shifts, decay rates of electron states and electromagnetic field absorption bands is investigated. It is shown that independently of the temperature, the contribution produced by interface phonons into renormalized electron spectrum is several times bigger than that of confined phonons. However, the experimentally observed long-wave shift and broadening of absorption band at higher temperatures is, mainly, caused by the decreasing heights of resonant tunneling structure potential barriers.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 7.

Tytuł:: Study on electric spring control method considering noncritical load voltage constraint
Autorzy:: Chen, Y.
Ma, G.
Xu, U.
Zhang, H.
Ju, R.
Tematy:: electric spring
noncritical load
voltage excursion
reactive power compensation; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/140516.pdf Link otwiera się w nowym oknie
Opis:: With the increasing penetration rate of grid-connected renewable energy generation, the problem of grid voltage excursion becomes an important issue that needs to be solved urgently. As a new type of voltage regulation control method, electric spring (ES) can alleviate the fluctuations of renewable energy output effectively. In this paper, the background and basic principle of the electric spring are introduced firstly. Then, considering the influence of an electric spring on noncritical load voltage, noncritical loads are classified reasonably, and based on the electric spring phasor diagram, the control method to meet the noncritical load voltage constraint is proposed. This control method can meet the requirements of voltage excursions of different kinds of noncritical load, increase the connection capacity of the noncritical load and improve the voltage stabilization capacity of the electric spring. Finally, through the simulation case, the feasibility and validity of electric spring theory and the proposed control method are verified.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 8.

Tytuł:: Study on the impact of electric vehicle charging load on nodal voltage deviation
Autorzy:: Ma, G.
Jiang, L.
Chen, Y.
Dai, C.
Ju, R.
Tematy:: distribution network
electric vehicle charging load (EVCL)
stochastic load
voltage deviation; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/141119.pdf Link otwiera się w nowym oknie
Opis:: The promotion and application of electric vehicles will contribute to the solution of several problems, such as energy shortage and environmental pollution, and the achievement of country economy and energy security. But a large-scale vehicle-to-grid system may cause adverse effects in the distribution network operation, the power network planning and such other parts. First, this paper collects the factors that influence the electric vehicle charging load and establishes the EV charging load model with a Monte- Carlo method. Then, we analyze the effect that the EV charging load made on the nodal voltage deviation under different permeability based on the IEEE30 node system. At last, this research gets the conclusion that the nodal voltage deviation is closely related to EV permeability, node type and node location. This research conclusion will provide practical guidance to the charging station planning.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 9.

Tytuł:: Using an Interdigital Micromixer for Separation of In3+ from Zinc Hydrometallurgical Process with D2EHPA as an Extractant
Autorzy:: Li, C.
Jiang, F.
Ju, S.
Peng, J.
Wei, Y.
Zhang, L.
Tematy:: interdigital micromixer
solvent extraction
mass transfer coefficient
indium
stripping; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/356090.pdf Link otwiera się w nowym oknie
Opis:: Experiments were performed in an interdigital micromixer with 30 microchannels (40 μm width of each channel) to separate In³⁺, Fe³⁺ and Zn²⁺ from sulfate solutions using Di-(2-ethylhexyl)phosphoric acid (D2EHPA) as the extractant. The effects of pH, extractant concentration and flow rate on the extraction efficiency and flow rate on mass transfer coefficient of In³⁺, Fe³⁺ and Zn²⁺ were investigated. At a phase flow rate of 7.0 mL/min and initial solution pH of 0.423, the extraction efficiency of In³⁺, Fe³⁺ and Zn²⁺ was 99.29%, 3.43% and 2.54%, respectively and mass transfer coefficient of In³⁺, Fe³⁺ and Zn²⁺ was 144.307 s^-1,1.018 s^-1 and 0.750 s^-1. Then, the loaded organic phase was stripped in an interdigital micromixer. At a phase flow rate of 9.0 mL/min and HCl concentration of 160 g/L, stripping efficiency of In³⁺ was 98.92% and mass transfer coefficient of In3+ was 169.808 s^-1, while concentration of Fe³⁺ and Zn²⁺ was lower than 0.005 g/L with good separation of In³⁺ from Fe³⁺ and Zn²⁺.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 10.

Tytuł:: Phase Diagrams of the MeNQ/HN and HN/NQ Binary Systems
Autorzy:: Tian, M.-M.
Li, H.-R.
Chen, L.
Ju, X.
Shu, Y.-J.
Tematy:: phase diagram
binary system
eutectic
DSC
XRD; Pokaż więcej
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Powiązania:: https://bibliotekanauki.pl/articles/358436.pdf Link otwiera się w nowym oknie
Opis:: An equation for a binary phase diagram with two eutectic points was deduced from the Van’t Hoff equation. The melting points of hydrazinium nitrate/ nitroguanidine (HN/NQ) samples with different ratios, ranging from 0 to 1 mole fraction, were explored by differential scanning calorimetry (DSC). The results revealed the presence of two eutectic points in the phase diagram of the HN/NQ binary system. The dependence of temperature on the composition (T-X phase diagram) of HN/NQ was depicted based on the equation described by the DSC data. The phase diagram of MeNQ/HN, with only one eutectic point was constructed by substituting experimental data of the compositions and their corresponding temperatures into the Van’t Hoff equation. The phase diagram with two or more eutectic points indicated the formation of new stable compounds with appropriate ratios of the two components; no new substance appeared in the system with only one eutectic point. Thus, the HN/NQ binary system showed the presence of a new substance, which is probably the HN/NQ co-crystal. No new substance was detected in the MeNQ/HN binary system. The results of the X-ray diffraction patterns agree with the findings from the phase diagrams.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Informacja

Wyszukujesz frazę "Ju, Y." wg kryterium: Autor