共搜索到33458条信息,每页显示10条信息,共3346页。用时:0小时0分0秒941毫秒
, 2006, 27(1): 118-123. [12] 邢皓枫, 孟明辉, 何文勇, 等. 基于结构面力学特性的嵌岩桩侧摩阻力分布分析[J]. 岩土工程学报, 2012, 34(12): 2220-2227. XING Haofeng, MENG Minghui, HE Wenyong, et al. Distribution of shaft resistance of rock-socketed piles based on mechanical properties of pile-rock interface[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(12): 2220-2227. [13] 赵明华, 夏润炎, 尹平保, 等. 考虑软岩剪胀效应的嵌岩桩荷载传递机理分析[J]. 岩土工程学报, 2014, 36(6......
and anthraquinone-based dyes [2]. Today there are more than ten thousand different pigments and dyes that have been widely used for coloring in various industries such as food, cosmetics, leather, paper... value. Calculated activation energy value (Ea) is 8.5 kJ/mol. 3) The nonlinear Freundlich isotherm is a better fit than the other model, based on the values of the correlation coefficients (R2......
reservoirs [6]. Besides the polymer gel system, many kinds of novel water shut-off agents have been developed. GOUDARZI et al [7] and BAI et al [8] synthesized a kind of preformed particle gel (PPG), respectively, and proved its favorable water shut- off performance in fractured and porous media. Al-GHAZA et al [9] developed a chemical packer which was made from fiber and epoxy resin and efficiently......
石结构(空间群Fd 3m),如图1所示[11],Ni离子占据八面体间隙,Co离子的一半占据八面体间隙,另一半占据四面体间隙[12].O离子作面心立方最紧密堆积. NiCo2O4赝电容的储能机理是在电极表面或体相中的二维或准二维空间上,电活性材料发生欠电位沉积,发生高度可逆的化学吸脱附或氧化还原反应,从而达到产生和电极充电电位相关的电容达到储存电荷的目的[13]. 图1 NiCo2O4.... [23] YUAN C, LI J, HOU L, ZHANG X, SHEN L, LOU X W. Ultrathin mesoporous NiCo2O4 nanosheets supported on Ni foam as advanced electrodes for supercapacitors[J]. Advanced Functional Materials, 2012......
) spectrometry analysis was as follows: 3.6524% Cu, 2.5450% Ni, 39.5300% Fe, 26.1787% S, 6.2071% Si, and 2.3080% Mg (mass fraction). No concentrate was used in the XRF or X-ray diffraction (XRD, Rigaku, D/Max-2550... of chalcopyrite on the cubic sample by adopting a monochromatic Al Kα X-ray source. All core-level spectra were referenced to the C 1s neutral carbon peak at 284.8 eV. The spot size was 400-600 μm, which......
stereocentres in a cascade using a single multifunctional organocatalyst[J]. Nature Chemistry, 2011, 3(3): 473-477. [2] MUGISHIMA T, TSUDA M, WATANABE M, et al. Absolute stereochemistry of citrinadins...; Medicinal Chemistry, 2007, 15(7): 2479-2513. [5] KUHEN K L, ELLIS Y H, BURSULAYA B, et al. Oxindoles with anti-HIV activity: US 2004/037247A1[P]. 2004-02-26. [6] PAULS H W, SAMPSON P B, FORREST B T, et al......
- enzymatic substances measurements at 96 h. The activity of SOD was measured based on its ability to inhibit the reduction of nitro blue tetrazolium (NBT) by superoxide radicals generated with xanthine... a (Chl-a), chlorophyll b (Chl-b) and carotenoids could be calculated by Eqs. (1)–(3) according to JEFFREY et al [17] with a modification methods. It was present that Chl-a showed the maximum......
and west of Zagher Village and south of brothers Mount. Studied skarn has formed the skarn in impact of diorite dyke with Cretaceous limestone. Studied skarn show enrichment in ratio to Cr, As, Au, Ni, Co... of various parallel arranged dikes (Figure 1). In the study area, dikes are gathered in two East and West of Tafresh areas based on the relative concentration (Figure 1). These dikes are almost parallel......
-feng, HAO Xiao-hong. Mixing effect of jet flow in the bottom blown furnace based on CFD[J]. Energy for Metallurgical Industry, 2014(6): 24-27. [17] 余 跃, 温 治, 刘训良, 苏福永, 蓝海鹏, 郝晓红. 喷枪结构对底吹炼铜炉流场影响的模拟及实验研究......
the amino acid side chains. MALAR et al [43] reported similar results. Based on these results, the increase of protein content might be a good indicator of the immense potential of vetiver to withstand Cr... The chlorophyll a and b and carotenoids contents were determined according to ARNON [16] method. The photosynthetic pigments contents were calculated according to MANIKANDAN et al [13]. 2.4 Analysis of Cr content......