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| 1 | Influence of temperature and solution composition on the formation of calcium sulfates显示文摘Calcium sulfates (anhydrite and hydrates) were synthesized by mixing CaCl 2 and Na 2 SO 4 solutions at room temperature followed by aging the resulting slurries at elevated temperatures. The variation of the morphology and structure of the calcium sulfates with aging temperature was investigated. Experimental results indicated that CaSO 4 ·2H 2 O plates, CaSO 4 ·0.5H 2 O whiskers and CaSO 4 spindles were formed at ≤100 °C, 130–160 °C and ≥170 °C, respectively. The formation and conversion of the calcium sulfates were discussed on the basis of characterization of the products and chemical analysis of the solutions. Compared to NaCl solution, pure water favors one-dimensional hydrothermal growth of CaSO 4 ·0.5H 2 O whiskers owing to lower supersaturation. | Kangbi Luo Chunmei Li Lan Xiang Huping Li Ping Ning | 2010 | Particuology2010,8,3: | 26 |
| 2 | Influence of disodium hydrogen phosphate dodecahydrate on hydrothermal formation of hemihydrate calcium sulfate whiskers显示文摘The influence of Na_2HPO_4·12H_2O on the hydrothermal formation of hemihydrate calcium sulfate(CaSO_4·0.5H_2O) whiskers from dihydrate calcium sulfate(CaSO_4·2H_2O)at 135 ℃ was investigated.Experimental results indicate that the addition of phosphorus accelerates the hydrothermal conversion of CaSO_4·2H_2O to CaSO_4·0.5H_2O via the formation of Ca_3(PO_4)_2 and produces CaSO_4-0.5H_2O whiskers with thinner diameters and shorter lengths.Compared with the blank experiment without Na_2HPO_4·12H_2O,the existence of minor amounts(8.65 ×10^(-4)-4.36 × 10^(-3) mol/L) of Na_2HPO_4·12H_2O led to a decrease in the diameter of CaSO_4·0.5H_2O whiskers from 1.0-10.0 to 0.5-2.0 μm and lengths from 70-300 to50-200 μm. | Qing Han Kangbi Luo Huping Li Lan Xiang | 2014 | Particuology2014,12,6: | 13 |
| 3 | Baicalin extracted from Huangqin(Radix Scutellariae Baicalensis) induces apoptosis in gastric cancer cells by regulating B cell lymphoma(Bcl-2)/Bcl-2-associated X protein and activating caspase-3 and caspase-9显示文摘OBJECTIVE:To evaluate the effects of baicalin in human gastric cancer cells, including apoptosis-inducing effects, and to investigate its underlying mechanisms of action.METHODS:Cell proliferation and apoptosis assays were performed to investigate the anti-proliferation effects of baicalin in human gastric cancer BGC-823 and MGC-803 cells.Real time-quantitative polymerase chain reaction and Western blotting analysis were performed to elucidate the molecular mechanisms underlying the anti-tumor properties of baicalin.RESULTS:In BGC-823 and MGC-803 gastric cancer cells treated with 80, 120, and 160 μmol/L baicalin for 48 h, a 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide assay showed that baicalin significantly inhibited cell proliferation in a dose-dependent manner, while flow cytometric analysis demonstrated that baicalin could induce apoptosis, also in a dose-dependent manner.Moreover, baicalin up-regulated the expression of caspase-3, caspase-9, and B cell lymphoma(Bcl-2)-associated X protein and down-regulated the expression of Bcl-2 at both the m RNA and protein level.CONCLUSION:Baicalin has potential as a therapeutic agent for gastric cancer by inducing apoptosis in cancer cells. | Wang Hongwei Li Hailong Chen Fengqin Luo Jun Gu Jing Wang Huping Wu Hongyan Xu Yan | 2017 | Journal of Traditional Chinese Medicine2017,37,2: | 13 |
| 4 | Finite element method based simulation of stress- strain field in the quenching process 显示文摘 | LI Huping ZHAO Guoqun HE Lianfang | 2008 | Materials Science and Engineering A2008,478,12: | 1 |
| 5 | Localized solutions to interval linear equations 显示文摘 | Wei Li Huping Wang Qing Wang | 2012 | journal of computational and applied mathematics2012,,15: | 1 |
| 6 | Gaussian decomposition and component pigment spectral analysis of phytoplankton absorption spectra显示文摘The absorption spectrum of phytoplankton is an important bio-optical parameter for ocean color hyperspectral remote sensing;its magnitude and shape can be aff ected considerably by pigment composition and concentration. We conducted Gaussian decomposition to the absorption spectra of phytoplankton pigment and studied the spectral components of the phytoplankton, in which the package effect was investigated using pigment concentration data and phytoplankton absorption spectra. The decomposition results were compared with the corresponding concentrations of the five main pigment groups (chlorophylls a , b , and c , photo-synthetic carotenoids (PSC), and photo-protective carotenoids (PPC)). The results indicate that the majority of residual errors in the Gaussian decomposition are <0.001 m^-1 , and R 2 of the power regression between characteristic bands and HPLC pigment concentrations (except for chlorophyll b) was 0.65 or greater for surface water samples at autumn cruise. In addition, we determined a strong predictive capability for chlorophylls a , c , PPC, and PSC. We also tested the estimation of pigment concentrations from the empirical specific absorption coeffi cient of pigment composition. The empirical decomposition showed that the Ficek model was the closest to the original spectra with the smallest residual errors.The pigment decomposition results and HPLC measurements of pigment concentration are in a high consistency as the scatter plots are distributed largely near the 1:1 line in spite of prominent seasonal variations. The Wozniak model showed a better fit than the Ficek model for Ch1 a , and the median relative error was small. The pigment component information estimated from the phytoplankton absorption spectra can help better remote sensing of hyperspectral ocean color that related to the changes in phytoplankton communities and varieties. | YE Huping ZHANG Bing LIAO Xiaohan LI Tongji SHEN Qian ZHANG Fangfang ZHU Jianhua LI Junsheng | 2019 | Journal of Oceanology and Limnology2019,37,5: | 1 |
| 7 | Status on the sulfur resources reclamation from the phosphogypsum显示文摘 | Li Huping Luo Kangbi | 2013 | Advanced Materials Research2013,63,4635636: | 1 |
| 8 | Influence of temperature and solution composition on the formation of calcium sulfates显示文摘 | Kangbi Luo a b Chunmei Li a b Lan Xiang b Huping Li a Ping Ning a a College of Chemical Engineering Kunming University of Science & Technology Kunming 650224 China b Department of Chemical Engineering Tsinghua University Haidian Beijing 10008 | | Particuology0,,: | 1 |