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The results showed that compared with traditional fluorite and phosphorous slag, phosphorous slag composite mineralizer was effective on reducing amount of f-CaO in cement clinker and improving burnablity of raw meals, but the effect was still obvious when sintering temperature and sintering time were increasing. The analysis of XRD, SEM and petrographic structure showed that phosphorous slag composite mineralizer decreased viscosity of liquid, promotes the formation of Alite in clinker and improves crystal form and size of minerals.
结果表明,与传统的萤石和磷渣矿化剂相比,磷渣与萤石复合的矿化剂可有效降低水泥熟料中游离氧化钙的含量,改善生料的易烧性;在燃烧温度与时间增加的情况下,改善作用仍然明显;通过XRD、SEM与岩相结构分析表明,磷渣与萤石的复合矿化剂降低了液相的粘度,促进了A矿的生长,对矿物的结晶形态有改善作用,有利于晶体尺寸的生长发育。
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After two-cluster testing,branch length testing and relative rate testing ,two sequences(Melantitta nigra and Aythya americana) of 15 Cty b sequences were deleted because thek evolutionary rate were heterogeneous. The divergence between Anseriformes and Galliformes was chosen as an anchor point. Nucleotide sequence and amino acid sequence of 13 sequences data set was used to calibrated Anatidae molecular clocks. The results indicated that amino acid sequence is better than nucleotide sequence when divergence time is calculated with two kinds of sequences. The reliable divergence time of Anatidae were estimated with """"1+2TiTv"""" model.
经过二簇检验、分枝长度检验和相对速率检验,删除2条速率不恒定的序列后,用剩余的13条序列,以鸡形目与雁形目的分歧时间(89.8MYA)为锚定点,用顺序标定法标定鸭科鸟类分子钟的分析结果表明,用&1+2TiTv&分析得到的鸭科鸟类的分歧时间比较可靠;氨基酸序列用泊松校正模型和Γ模型估计的分类单元间的分歧时间则比较一致,表明氨基酸序列更适合用于鸭科鸟类分子钟的研究;用同一基因标定分子钟时,较长序列得到的结果标准误比较小;与核苷酸序列相比,氨基酸序列更适于用作分子钟的标定。
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In addition, the features of elemental geochemistry of all samples suggest that (1) the EarlyTriassic andesitic rocks, characterized by characteristic natures of island arc volcanics, likely erupted in the subduction setting; that (2) the generation of LateTriassic rhyolites with an affinity of Alike granite and synchronously main body granites in the Lincang batholith displaying similar geochemical features, is closely related with the postcollision or latecollision setting; that (3) although the LateTriassic basic rocks partly show island arc volcanics such as highAl contents and NbTa depletion, some of them possessing highMg contents and mostly having traceelement ratios similar to intraplate basalt, which indicates that they erupted in the postcollision rift environment.
元素地球化学特征表明,早三叠世火山岩具有典型的岛弧火山岩的特征,暗示其很可能形成于俯冲的构造环境;中三叠世晚期的流纹岩与临沧花岗岩基主体具有非常相似的地球化学特征,结合其流纹岩具有A型花岗岩属性,表明该区中三叠世火成岩形成于碰撞后的构造背景;而晚三叠世基性火山岩虽然在地球化学特征上显示出与岛弧火山岩相似的高铝和NbTa的亏损,但其中部分火山岩具有高镁和板内玄武岩的微量元素比值特征,说明这些火山岩可能形成于碰撞后裂谷环境。
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There were lesser and fewer in commercial species and its numbers in the cover net, and the sum of Nemipterus virgatus , Saurida tumbil , Upeneus bensasi , Trachinocephalus myops comprised 95.4% in number and 86.0% in weight of sample catch in the cover net,respectively. The high percentage of juvenile commercial species that were undersized in the codend showed 30.3 mm square mesh codend had more serious damage to most juvenile commercial species, approaching or exceeding 50% in percentage of juvenile species which body length is smaller than fishable size- Trichiurus haumela, Priacanthus tayenus , Navodon tessellatus, Argyrosomus argentatus, Nemipterus bathybius and so on, even exceeding 90% in percentage of juvenile Sepia spp, Loligo spp and Parastromateus niger. In particular, 50% selection lengths ( L 0.5) caught Saurida tumbil and Nemipterus virgatus were smaller than their minimum fishable size.
结果表明,这种规格的方目网囊平均尾数逃逸率为29.76%,平均重量逃逸率为8.46%;出现在套网中的经济种类少、数量少,条尾绯鲤、金线鱼、多齿蛇鲻、大头狗母鱼4种鱼的尾数和重量分别占套网抽样渔获的95.4%和86.0%;网囊中带鱼、长尾大眼鲷、黄鳍马面鲀、白姑鱼、深水金线鱼等鱼种的体长小于可捕标准的个体尾数比例均超过或接近50%,枪乌贼、乌贼、乌鲳等幼鱼尾数比例达90%以上,多齿蛇鲻和金线鱼50%选择体长均未达到最低可捕标准,表明该种规格网囊对多数经济种类幼体的损害比较严重。
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Meanwhile, the coated surface was hydrophobic with a contact angle of 107.2°since the introduction of methyl groups and methylene groups. Static immersing corrosion test, potentiodynamically polarization curve and electrochemical impedance spectroscopy were conducted to evaluate the film corrosion performances. The results of potentiodynamically polarization curve and EIS in 55wt% LiBr solutions at room temperature in atmospherical pressure indicated that the corrosion current density of BMBSE film coated surface was 4 orders of magnitude smaller than that of bare SUS304 steel, and the impedance was increased by a factor of 10000. Static immersing corrosion test presented that the BMBSE film can significantly increase the corrosion resistance in 55wt%LiBr solution at 180°C compared with stainless steels.
同时由于有机组分甲基和亚甲基的引入,结构均匀致密,并具有一定的疏水性;电化学测试结果表明BMBSE膜的极化阻抗比不锈钢大4个数量级,自腐蚀电流密度也下降低了4个数量级左右,具有良好的耐腐蚀性能;成膜的影响因素优化结果表明BMBSE、EtOH、D.I.water摩尔比为1∶4∶3,热处理温度为200℃时,更有利于制备结构均匀、致密、耐腐蚀性能好的薄膜;静态浸泡腐蚀实验结果说明,在180℃、55%的高温溴化锂溶液中BMBSE膜能起到良好的腐蚀防护作用。
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Then, inhibition mechanism and the relations between inhibition efficiency and molecular structure of inhibition of carbon steel in chlorhydric acid by benzene nitriles and quaternary ammonium salts are studied from microscope through quantum chemistry calculation, and according to the results, theory predicting and proof testing of a benzene nitrile (2-benzo butyl nitrile) are made.
利用Hansch关系的研究结果表明,苯腈类化合物在盐酸溶液中对碳钢缓蚀的缓蚀效率,可用苯腈类化合物氰基氮原子的净电荷密度和分子最高占据轨道能量或分子最低空轨道能量构成的表达式表达。量子化学计算研究结果表明:1、苯腈类化合物在盐酸溶液中对碳钢缓蚀的缓蚀机理可能是:苯腈类化合物分子以其氰基氮原子上的电子提供给铁的3d空轨道,形成配位键;同时铁的3d轨道上的电子提供给苯腈类化合物分子的能量最低空轨道,形成&反馈键&。
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The circinal cavities were found in calcium alginate beads and the cylinder holes were observed in zinc alginate beads from the SEM,which indicated that the volume of fraction of zinc alginate polymer was relatively bigger and the zinc alginate polymer chain was more rigid than that of calcium alginate .
凝胶的SEM照片可见,海藻酸钙的冷冻干燥颗粒内为较大的圆孔,海藻酸锌凝胶内为较小的长孔,表明海藻酸锌高分子链在凝胶颗粒中的体积分率相对较大同时刚性较强;卵清蛋白从海藻酸凝胶颗粒中释放的试验结果表明,由于上述海藻酸锌凝胶的特性,导致海藻酸锌对卵清蛋白扩散阻滞作用相对较强;根据试验数据计算得卵清蛋白在海藻酸钙、海藻酸锌凝胶颗粒中的扩散系数分别为1.19×10-7、0.07×10-7cm2/s,利用阻滞模型计算得海藻酸锌高分子链在凝胶颗粒中体积分率约为海藻酸钙高分子链在凝胶颗粒中体积分率的1.7倍。
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As for the radius of porous media effect our experiments select four kinds of sea-sand whose pore radius vary between 125-700μm.The results shows that the pore radius we use in the experiments are too large to produce capillary effect which can clag the process of hydrate formation, only if the pore radius is smaller than 60 nm the can produce capillary effect.
基于粒径范围125-700μm的四种多孔介质的甲烷水合物生成实验结果表明,较粗粒径的多孔介质引起的孔隙间毛细作用对甲烷水合物不会产生明显的阻碍作用,但计算结果表明,孔径粒径小于60nm的多孔介质会阻碍甲烷水合物的生成。
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Were used; for filter-eeding experiment, the alga used was Nitzschia closterium, and the experimental temperatures were 20, 23, 26, 29℃.Results show that the feeding selectivity of small-ized bay scallop and the oyster increase with algae size:when the algae increased from 4.35m to 11.6m, the feeding rate of bay scallop increased from 4.21%to 11.0%and that of the Pacific oyster from 0.81%to 3.15%.
结果表明,海湾扇贝和太平洋牡蛎的小贝的摄食率随藻类规格的增大而增加;而大贝则表现出明显的差异,海湾扇贝对中等规格(=5.55—5.79m)的藻类、太平洋牡蛎对小规格(=4.35m)的藻类具有较高的选择性,表明相同条件下两种贝类对海洋浮游植物群落结构产生不同的影响。
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The results are consistent with the interpretation that positive intangible information tends to trigger institutional herding on the buy side.3. The securities Investment Funds act as momentum traders in bear market while as contrariant traders in bull market. Further analysis reveals that momentum trading by investment funds intensifies stock return momentum but stock price experiences a long-term reversal. It indicates return momentum results from mispricing instead of risk. The securities Investment Funds hamper market efficiency when they act as momentum traders.4 Both momentum trading and herding behavior intensify market anomalies and hamper market efficiency. However, momentum trading or herding behavior is the only one of the many aspects of the institutional investor.
第三,机构投资者的动量交易行为会加重了股票收益惯性,这一结论在分别控制股票规模、账面市值比因素后仍成立,并且机构投资者对股票的动量交易行为越强烈,股票收益的惯性也越明显,说明机构投资者具有影响股票价格的能力;进一步的分析表明,惯性利润在长期均实现反转,但反转的周期和程度受动量交易指标值的影响,股票动量交易程度越高,动量收益反转越强烈,反转周期越短,这表明机构投资者的动量交易行为使股价严重偏离其基础价值,在长期,股票价格不断调整逐渐靠近其基础价值,因此可以说,机构投资者对股票的动量交易行为会加重股票收益惯性和阻碍市场效率。
- 推荐网络例句
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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.
从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。
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The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.
集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐
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The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.
血精的原因很,以良性病变为主。