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The results of catalytic activity show that both Ni-B and Ni-P sample have the same kinetic equation for hydrogenation of 1, 3-cyclopentadiene to cyclopentene and the same TOF. Therefore, it can be suggested that they have the similar active site. The catalytic activity of Ni-B sample is higher than that of Ni-P sample, and it is due to the more active sites of Ni-B sample having.

催化活性测试表明,Ni-B与Ni-P催化环戊二烯加氢反应对环戊二烯具有相同的动力学方程,而且两者具有相似的氢转换频率,表明两者的活性中心本质上是相似的,类金属不同导致的电子转移方向的不同仅仅影响反应的初活性,宏观活性的差别在于两者活性中心数量的不同。

Toxicity and repellent activity of several plant-based compounds on Blattella germanica were studied, results showed that rotenone, toosendanin and azadirachtin had stomach toxic effect on Blattella germanica, rotenone showed high stomach toxicity and all insects died after 8 hours, matrine also has deformative effect on Blattella germanica , matrine and toosendanin can affect oviposition of Blattella germanica; repellent activity of these botanicals was further studied, results showed that bering hydrochloridum, azadirachtin and sparteinehave had repellent activity against Blattella germanica, observation also showed that rotenone and bering hydrochloridum had high contact toxicity against Blattella germanica, the time of all insects knocked down were 8 and 48 hours.

选取了7种植物源化合物,测定了它们对德国小蠊的毒性和驱避性,结果表明,鱼藤酮、川楝素和印楝素对德国小蠊具有不同程度的胃毒作用,其中鱼藤酮乙酸乙酯溶液作用较强,8小时死亡率已达100%,川楝素和印楝素对德国小蠊也表现出一定的毒杀作用,观察还发现印楝素和苦参碱对德国小蠊的发育有致畸作用,苦参碱和川楝素影响其卵鞘形成;进一步对这几种化合物的驱避性进行研究,结果表明盐酸黄连素、鱼藤酮乳油和印楝素乳油对德国小蠊有不同程度的驱避作用,其驱避率分别为96.7%、51.3%和50.1%,另外观察到鱼藤酮乙酸乙酯溶液和盐酸黄连素对德国小蠊具有较强的触杀活性,供试虫全部被击倒的时间分别为8小时和48小时。

Experiments were conducted for testing root tensile strength and measuring root cellulose content of Medicago sativa and Digitaria sanguinalis. Results indicated that in the two species, both the tensile strength and percentage of cellulose were negatively correlated with root diameter, while a positive correlation was found between percentage of cellulose and tensile strength. The conclusion confirmed that the relationship among root tensile strength, root diameter and root cellulose content found in tree root system was held also in the two species.

对豆科的紫花苜蓿和禾本科的马唐根的抗拉力和纤维素含量的研究表明,根的抗拉强度和纤维素含量均与直径呈显著的负相关关系,根的抗拉强度与纤维素含量呈正相关关系,表明&木本植物根的抗拉强度、直径和纤维素含量关系&的研究结论在这两种草本植物上也同样适用。

The temperature affects partition of dipotassium glycyrrhizinat but the effect is minor. On the same time pH has major impact on the partition of dipotassium glycyrrhizinat. The coefficient is eight times higher when pH reaches 2. The improved Diamond-Hsu model can be used to correlate the partition coefficient of dipotassium glycyrrhizinat in the system of water/ethanol/isobutanol. The result of Infrared and TG analysis indicate the extraction product has the same characteristic features with dipotassium glycyrrhizinat.

结果表明:体系的初始点越靠近临界点,甘草酸二钾的分配系数越大;温度对甘草酸二钾的分配有~定的影响,但分配系数随温度变化不大;pH值对甘草酸二钾的分配有较大的影响,在pH=2附近,分配系数高出其他位置达8倍;改进的Diamond-Hsu模型可以用于关联甘草酸二钾在水+乙醇+异丁醇体系中的分配系数;红外和TG分析结果表明萃取产物与甘草酸二钾样品的性质特征相同。

Statistic analysis indicated that three kinds of irregular components show complicated random characteristics, and their probability density distributions change with increasing gas velocity, that is, irregular occurrence time fluctuations of all three kinds of elements of heterogeneous structure (the dilute phase, the dense phase and the dilute/dense cycle elements) evolve similarly from symmetric distribution similar to Gauss distribution at low gas velocities to double-peak distribution at medium gas velocities, and become dissymmetric single-peak distribution at high gas velocities.

相关分析表明:动态行为中的三类非规则波动呈随机性;直方图分析表明:随表观气速变化,非均匀结构的各种非规则波动的概率密度分布均具有复杂的演变;其中,对于时间非规则波动,其演变趋势是:小气速下的单峰分布、中气速下的双峰分布和高气速下的非对称单峰分布。

The results show that the introducing of multivinyl monomer and CaCO3 can slow down polymerization rate to different extent.Using 1%~5% trimethylolpropane trimetbacrylateor divinyl benzene,tight encapsulation of CaCO3 can be realized and beyond 94%PS cannot be extracted. The amount of crosslinker or emulsifier should be accommodated when the load amount of CaCO3 is increased.CaCO3 content in the product increases consequently with the increase of the loaded amount of CaCO3,which can be known from FT-IR and TGA.TEM observations reveal that when the load amount of CaCO3 is 14.8%,most CaCO3 particles are encapsulated and each latex particle contains one CaCO3 particle.Composite particles have well-defined core—shell structure and the thickness of polymer shells is around 10 nm.However,the thickness of polymer shell decreases and many free CaCO3 particles appear when the load amount of CaCO3 reaches 29.3%and 58.7%,respectively.

结果表明,多乙烯基单体以及碳酸钙的引入会使聚合反应速率有不同程度的降低;使用1%~5%的TMPTMA或DVB,可实现PS对碳酸钙颗粒的牢固包覆,不可抽提的PS达94%以上;当碳酸钙用量改变时,需要适当调整乳化剂和多乙烯基单体的用量;IR和TGA的结果表明,随着碳酸钙用量增加,产物中的碳酸钙含量也相应增加;TEM照片和计算结果显示,当碳酸钙用量为14.8%时,绝大部分碳酸钙颗粒被包覆,且基本上每个乳胶粒中包覆一个碳酸钙颗粒,复合粒子具有清晰的核壳结构,壳层厚度约为10 nm,而当碳酸钙用量增加到29.3%和58.7%时,壳层厚度减小,并且出现较多裸露的碳酸钙颗粒。

To establish a MPLC method for the content determination of resveratrol in Polygonum cuspidatum Sieb. Et. Zucc, Analytical column SOURCE 5RPC ST 4.6/150 was used with a mixture of acetonitrile+water (30+70,volume ratio ) as mobile phase ,with a flow rate of 1ml/min and the UV detection wavelength was 306nm, The linear range was 0.6-1.6mg/ml (r=0.9919). The average recovery of prodatin was 103.0%-90.4%(RSD=7.21%). The method is convenient and accurate. Result indicated a reverse phase chromatography media based o n polystyrene/divinyl benzene has excellent resolution for resveratrol in cuspidatum. P rovide theoretical support for process development.

色谱条件采用SOURCE 5RPC ST 4.6/150预装柱,以乙腈/水(体积比30/70)溶液为流动相,流速1ml/min、检测波长为308nm,结果表明,白藜芦醇在0.6~1.6mg/ml的浓度范围内峰面积积分值与浓度的相关系数r=0.9919;所测定的虎杖饮片中白藜芦醇平均含量为0.304%,平均回收率为103.0%~90.4%;实验表明,以聚苯乙烯为基架的反相介质对于虎杖中自藜芦醇具有良好的分辨率,适合其有效成分的检测、分离,对虎杖中白藜芦醇制备的科学研究过渡到工艺开拓有很好的借鉴。

Compared with control,①the mean tumor weight of H22 of SXKA Granules three dose groups were decreased significantly(P.01,P.05),and the mean inhibition rates of SXKA Granules 20、10 g/kg dose groups were above 30%;②the mean tumor weight of S180 of SXKA Granules three dose groups were decreased significantly(P.01),and the mean inhibition rates of SXKA Granules 20、10 g/kg dose groups were above 32%;③the mean tumor weight of EAC of SXKA Granules three dose groups were decreased significantly ( P.01, P.05),and the mean inhibition rates of SXKA Granules 20 g/kg dose groups were above 38%;④the mean tumor weight of Lewis carcinoma of SXKA Granules three dose groups were decreased significantly(P.01, P.05),and the mean inhibition rates of SXKA Granules 20、10、5 g/kg dose groups were above 36%;⑤the mean tumor weight of W256 of SXKA Granules three dose groups were decreased significantly ( P.01, P.05),and the mean inhibition rates of SXKA Granules 20、10 g/kg dose groups were above 32%;⑵Compared with control,SXKA Granules 20、10 g/kg dose groups had extended the survial time of the P388-bearing mice respectively(P.01),and the mean prolong rates of SXKA Granules 20、10 g/kg dose groups were above 50%;⑶Compared with S180-bearing group, SXKA Granules 20、10 g/kg dose groups could increase the weight of thymus and spleen, Spleen index and thymus index were increased, SXKA Granules 5 g/kg dose group could increase thymus index(P.05);⑷As Compared with control group, SXKA Granules 20、10 g/kg dose groups could improve mouse serum half hemolysis value depressed by transplanted tumor dramatically(P.01), which revealed the SXKA granules could improve the mouse humoral immunity system;⑸SXKA Granules 20 g/kg dose group could increase of englobe indexαon S180-bearing mice remarkably(P.01), which indicated the SXKA Granules could improve their cellular immunity system.

对荷W256大鼠,生兴克癌冲剂20、10、5 g / kg三组的平均瘤重明显低于对照组(P.01,P.05),生兴克癌冲剂20、10 g / kg组的平均肿瘤抑制率均大于32 %;⑵与空白对照组相比,生兴克癌冲剂20、10 g/ kg能显著地延长移植小鼠白血病P388小鼠的存活天数(P.01),生兴克癌冲剂20、10 g/ kg对荷白血病P388小鼠生命延长率均在50%以上;⑶与S180荷瘤组相比,生兴克癌冲剂对荷瘤鼠的免疫器官重量、胸腺指数和脾指数有一定的提高趋势,其中生兴克癌冲剂5 g / kg组对荷瘤小鼠的胸腺指数有一定的提高作用(P.05);⑷与S180荷瘤组相比,生兴克癌冲剂20、10 g /kg组可提高由荷瘤引起的小鼠血清半数溶血素值的降低(P.01),表明其可提高荷瘤小鼠体液免疫功能;⑸与对照组相比,生兴克癌冲剂20 g /kg组可提高荷S180肉瘤小鼠的免疫吞噬系数α值(P.01),表明其可提高荷瘤小鼠细胞免疫功能。

DSC analysis found that the behavior of PSPI-TM film containing TiO〓of 12% was greatly different from that of the corresponding ester-typePSPI film. An intense exothermal change was found on the DSC curve. TGAanalysis indicated that the curve for weight loss of the PSPI-TM film wouldnot reach a platform until 400℃.

DSC热分析表明含TM基于转化后PI的重量折算为12 %(w/w的Ti〓的PSPI光刻胶膜的热转变行为不同于相应的酯型PSPI光刻胶膜,在300℃附近有一个很强的放热过程;TGA分析表明这种含TM的光刻胶膜直到400℃以上才达到&失重平台&。

Researches to the gold-bearing quality of sedimentary and magmatic rocks show that most of these rocks have more gold content than the average of the upper crust. Further evidences are quoted to support the view that fluids exist in shallow crust have the ability resolve some gold. Moreover, in the convergent compression, deep melting of the lower lithosphere can bring some Au and mineralization materials and move up to upper crust. Regional faults, which formed in geosynclinal and diwa periods, controlled the partial distribution of intrusions and gold mineralization belts, i.e.

区域地层和岩浆岩的含金性表明,岩浆岩和大部分地层均具较高的金异常含量,而进一步的研究表明浅部地壳的流体对地层中的金具一定的溶解和搬运迁移能力;而在汇聚挤压构造体制下由深熔作用生成的岩浆可以从岩石圈深部携带部分金和其它成矿物质并迁移到地表浅部,地槽期和地洼期形成的区域断裂构造共同控制了中新世岩浆的侵入和金成矿带的分布。

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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。

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

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。