Autor: Ju, S. - Prolib Integro

Skocz do pozycji: 1.

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: 2.

Tytuł:: Influence of paclobutrazol on the growth and photosynthesis of Sequoia sempervirens seedlings
Autorzy:: Ju, S.
Xu, D.
Zhan, C.
Ji, L.
Yin, T.
Li, Z.
Lu, Z.
Tematy:: paclobutrazol
plant growth regulator
photosynthetic activity
Sequoia sempervirens
seedling
morphological index
chlorophyll fluorescence
environmental stress; Pokaż więcej
Wydawca:: Instytut Ogrodnictwa
Powiązania:: https://bibliotekanauki.pl/articles/1969.pdf Link otwiera się w nowym oknie
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 3.

Tytuł:: Intensifikacija processa aehracii ctochnykh vod v zakrytykh cirkuljacionnykh okislitelnykh kanalakh
Intensification process of sewage aeration is in the closed circulation oxidizing channels
Autorzy:: Ehpojan, S.
Shtonda, I.
Shtonda, Ju.
Tematy:: waste water
water consumption
water aeration
biological treatment
closed circuit
oxidative channel; Pokaż więcej
Wydawca:: Komisja Motoryzacji i Energetyki Rolnictwa
Powiązania:: https://bibliotekanauki.pl/articles/76717.pdf Link otwiera się w nowym oknie
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 4.

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: 5.

Tytuł:: Accounts of the new aspects of nitromethane initiation reactivity
Autorzy:: Zeman, S.
Atalar, T.
Friedl, Z.
Ju, X-H.
Tematy:: DFT B3LYP methods
detonation
initiation
nitromethane; Pokaż więcej
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Powiązania:: https://bibliotekanauki.pl/articles/358898.pdf Link otwiera się w nowym oknie
Opis:: A well-known effect of amines, and also of water, on detonation characteristics of nitromethane (NM) is discussed from the point of view of the published knowledge about the study of initiation reactivity of this nitro paraffin. It is documented that bimolecular and higher interactions during the initiation of NM are impossible. The most widespread concepts of the primary steps of this initiation, i.e. formation of aci-NM anion [CH2=NO2]— by intermolecular hydrogen transfer in the neat NM submitted to shock and formation of this anion by action of an amine, have been scrutinized by the DFT B3LYP/cc-pVTZ+ method and evaluated as thermodynamically disadvantageous. Also the 1,3-intramolecular hydrogen shift in the NM molecule was characterized as a higher-barrier process. Two favorable primary mechanisms of fission in the NM initiation and development of its detonation were investigated by DFT B3LYP/cc-pVTZ+ calculations: homolysis of C–NO2 bond in the neat NM and homolysis of N–OH bond in its aci-form. The second mentioned pathway was found to be thermodynamically the most preferable mechanism of fission. Consequently, a detonation wave of NM with admixture of amine or water has a considerably reduced reaction zone length in comparison with the detonation of neat NM. The B3LYP/6-311++G(d,p) calculations of transition states revealed that an admixture of methylamine and/or water influences the conversion of nitromethane to its aci-form, and this effect is more feasible in the case of methylamine rather than water.
Dostawca treści:: Biblioteka Nauki