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The present invention adopts the technical proposal of adopting ZSM-5 mesoporous molecular sieve raw powder with a silicon-aluminum mol ratio SiO2Al2O3 of 20 to 1000 and a weight percentage of 20 to 100 percent as well as at least one caking agent selected from SiO2, clay and Al2O3 to extrude, tablet or spray into shape; then treating for 1 to 8 hours by 0.1 to 3 mol/l of at least one ammonium liquor from ammonium nitrate, ammonium chloride or ammonium sulphate or 0.1 to 8.5 mol/l of at least one acid liquor from muriatic acid, nitric acid, vitriol or acetic acid under a temperature of 20 to 90 DEG C; then using steam to treat for 2 to 15 hours under the temperature condition of 400 to 700 DEG C; using a liquor of 0.1 to 3mol/l selected from at least one of oxalic acid, citric acid or maleic acid under a temperature condition of 20 to 90 DEG C to dip for 2 to 5 hours to obtain the modified molecular sieve catalyst, thus better solving the problems.
本发明通过采用硅铝比SiO2/Al2O3为20~1000重量百分比计20~100%的ZSM-5介孔分子筛原粉与余量的选自SiO2、粘土或Al2O3中至少一种粘结剂挤条、压片或喷球成型;再经过0.1~3摩尔/升选自硝酸铵、氯化铵或硫酸铵中的至少一种铵溶液或0.1~8.5摩尔/升选自盐酸、硝酸、硫酸或乙酸中的至少一种酸溶液在温度20~90℃下处理1~8小时;然后在温度为400~700℃条件下水蒸汽处理2~15小时;再用0.1~3摩尔/升选自草酸、柠檬酸或马来酸中至少一种在温度为20~90℃条件下浸渍2~5小时得所需改性分子筛催化剂的技术方案较好地解决了该问题,可用于甲醇转化制丙烯的工业生产中。
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Methods32 Wistar female rats, randomly divided into 4 groups were shamly operated or ovariectomized ,then all were fed with medicine for two months and then killed.The right tibiae were roasted and weighed to be dissolved by muriatic acid for testing Calcium,Magnesium,Phosphorus, and hydroxyproline. The left proximal and middle tibias were trimed and processed undercalcified sections for cancellous and cortical bone histomorphometric analysis.
方法取32只Wistar雌性大鼠随机分为4组,按要求行去势手术,然后分别灌胃给药,8周后处死,取大鼠右胫骨烘干测定钙、镁、磷及羟脯氨酸;取左胫骨上段松质骨和中段皮质骨硬组织包埋、切片,图像分析松质骨、皮质骨形态计量参数。
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Secondly, three kinds of mathematics model of optical vortex beams were introduced here. Then the propagation dynamics of optical vortex beams through the non-axis symmetry system is studied, this chapter includes the introduction of the symmetry vortex beam and the non- symmetry vortex beam, the deduction of the Collins diffract integral formula for the non-axis symmetry system, and the transformation of the vortex beam passing through the non-axis symmetry system has been described by using the numerical simulation. Then the general calculation for the orbit momentum of vortex beams, the matrix form for the orbit momentum of vortex beams, and the photon method to describe the orbit momentum of vortex beams are also introduced here. Finally, the interference about optical vortex beams was studied.
本文对涡旋光束进行了较为全面的介绍和研究,主要内容包括:(1)光学涡旋光束的基本理论,主要是介绍了单个光学涡旋光束在柱坐标中的一些表征,涡旋光束的奇异相位和光学涡旋的相位结构;(2)光学涡旋光束的三种数学模型;(3)光学涡旋光束在非轴对称光学系统中的传播动力学,其中介绍了对称涡旋光束与非对称涡旋光束,推导了非轴对称光学系统的 Collins 衍射积分公式,并利用计算机模拟图描述了对称涡旋光束经过非轴对称光学系统后涡旋形态的改变;(4)涡旋光束轨道角动量的一般计算,涡旋光束轨道角动量的矩阵形式,光子法描述涡旋的轨道角动量;(5)涡旋光束的干涉。
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If multiple players would make choices and/or take actions at the same time, the active player makes any choices required, then the next player in turn order (usually the player seated to the active player's left) makes any choices required, followed by the remaining nonactive players in turn order. Then the actions happen simultaneously.
若多位玩家需要同时做决定和/或采取动作,则先由主动玩家作决定,再由非主动玩家作决定;之后这些动作同时发生。
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It is presented that indirect assimilation experiment of CMW data from TCFM method improves effectively not only on vertical velocity field but for precipitation.4 Based on theory analysis, E-Ir relationship is brought forward with two electrification mechanisms. One is inductive mechanism, i.e., cloud particles collide with precipitation particles then flick away, the other is noninductive mechanism because of different temperature, i.e., bigger supercooled cloud particles collide and freeze with hail particles combined with ice scraps. By means of CINRAD and FY2C data assimilation, precipitation intensity Ir can be obtained, then electric field intensity E, discharge time and locations can be achieved with supposed threshold 300KV/m. Though it can not distinguish between IC (Intra-Cloud) lightning and CG (Cloud-to-Ground) lightning, results are still comparable to LLS observations.5 Example analysis shows that the relationship between precipitation data from AMS and CG data from LLS is not very clear.
同化实验对于台风眼区的螺旋形雨带贡献显著,说明TCFM云导风资料同化实验不仅有效调整了模式的垂直速度场,还对降水模拟有了明显改善。4通过理论分析,利用云粒子与极化降水粒子碰撞并弹离的感应起电机制和较大过冷云滴与雹粒碰冻并产生冰屑的温差起电机制下得到的E-Ir,由雷达、卫星遥感资料直接和间接同化模拟得到Ir,来反推E,了解雷暴云中闪电强度的平面分布,设置放电阈值为300KV/m,推算出放电的位置和首次发生闪电的时间。
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In the network JY played a year, I to have always been and then have no to feel the interpersonal exchanges, because I am not a Chinese, I is 1 the year ago go to when traveling China buy to the game card of 1 network JY, return to Seoul's home the empress, and I packed to ascend the gamed, but computer and the manifestation of the nonsupport Chinese language, therefore I please friend who study abroad in China purchased a Taichung country computer, computer 托 that produce the 运 go to Seoul is already octobered, and pack the game to behind see to see to new- break throughed Fuzhou to stand, I and incognizant Chinese characters, literally choose and then enter, pass by donkey years of grope for, and I understand the game, and feel the Chinese to think the elephant dint very abundant, the Mr. JY novel also write of very stick, I do not understand the Chinese language, therefore I play the network JY resemble at play the single game, many people to request to chat with me, I see to not understand, therefore can't with everybody exchanges.
在网络JY中玩了1年,我从来就没有感觉到过人与人之间的交流,因为我并不是中国人,我是1年前去中国旅游时买到了1张网络JY的游戏卡片,回到汉城的家里后,我装上了游戏,但是电脑并不支持汉语的显示,所以我拜托在中国留学的朋友购买了一台中国生产的电脑,电脑托运到汉城时已经是10月了,装了游戏后看到看到新开通的福州站,但是我并不认识汉字,随便选了就进入,经过很久的摸索,我了解了游戏,觉得中国人的想象力很丰富,JY先生的小说也写的很棒,但是因为我不懂汉语,所以我玩网络JY就像在玩单人游戏,很多人要求和我聊天,但是我看不懂,所以就无法和大家交流。
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According to the superposition principle of electric circuits, the post-fault power network is equivalent to the superposition of network in normal state and that composed by fault components; then taking single-phase system for example, the fault distance and asynchronous time are taken as unknown numbers and the fault location equations for normal voltage and current phasors as well as fault components are established; and then the analytical expression for fault distance is deduced, in addition the recognition method of false root is given.
该算法根据电路叠加原理,将故障后的网络等效为正常状态网络和故障分量网络的叠加,然后以单相系统为例,以故障距离和非同步时间作为未知数,对正常电流电压相量和故障分量分别建立测距方程组,推导出故障距离的解析表达式,并给出了伪根的识别方法。
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IF there is two white colours then I would go for the off white colour for the base and then the 8 different colours of the printing like in the attachment by 1000 pcs.
的中文意思是:如果有二种白色颜色然后我向白色求助上色为基地和然后打印的8 种不同颜色象在附件由1000 台个人计算机。
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Theorem(Stokes's Theorem) Let be a piecewise smooth oriented curve in three-space, be a piecewise smooth oriented surface with boundary curve .The surface and the curve are related by a right-hand relationship, i.e., if the fingers of the right hand are cupped in the direction of ,then the thumbpoints in the direction of orientation of .,, have continuous first partial derivatives on and ,then
定理 设为分段光滑的空间有向闭曲线,是以为边界的分片光滑的有向曲面,的正向与的侧符合右手规则(即如果右手大拇指表示曲面的方向,则弯曲四指表示曲线的方向),函数,,在曲面上具有一阶连续偏导数,则有下述公式成立
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Sis as the out-group. The molecular phylogenetic tree was constructed by NJ method using software MEGA 3.1, and three populations of M. nipponense were clustered first and then clustered with M. hainariense; M. rosenbergii and M. malcolmsonii, as well as M. Icr and M. latimanus had a closer genetic relationship and were clustered first, then they were clustered with M. carcinus and M. equidens, and finally with Fenneropenaeus chinensis.
用MEGA 3.1软件中的NJ法构建的分子进化树,日本沼虾3个群体先聚在一起后与海南沼虾聚在一起;另外,罗氏沼虾与马氏沼虾、短腕沼虾与贪食沼虾亲缘关系较近先聚在一起,然后再与大臂沼虾和等齿沼虾聚在一起,最后才与外群中国明对虾聚在一起。
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力