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The experimental results show that the mean particle size of griseofulvin precipitated by RESS is smaller than 1, 0μm, narrow distribution and 95% fine particles is smaller than 1. 0μm. Increase of the pre-expansion pressure, the extraction temperature, the expansion chamber temperature, the spraying distance, the concentration of cosolvent and decrease of the nozzle diameter resulted in decrease of the particle size under the operating condition studied. Enhancement of the pre-expansion temperature resulted in increase of the particles size. The SEM of GF shows that the shape of original is atactic and a wide size distribution, but the microparticles obtained by RESS is reverse. Similar melting points and XRD patterns were observed for the original material and the precipitates obtained by RESS.
实验结果表明,用含夹带剂的RESS法制备的灰黄霉素微粒的平均直径在1μm左右,且分布均匀,95%微粒在1μm以下,仅用CO〓作为超临界流体制备的微粒与上述方法制备的微粒的平均直径和分布相似,只是产量太低,而用机械法制备的微粒平均直径在3μm左右且分布较宽;不同的过程参数对沉析微粒尺寸有不同的影响,预膨胀压力、膨胀室温度、溶解温度以及夹带剂浓度的提高或增大,均可使沉析微粒的直径变小;预膨胀温度提高,所得微粒的直径变大;喷射距离的增加,沉析微粒的直径变小;喷嘴直径越小,由此制得的微粒的直径就越小;根据实验结果还可知道,通过理论计算的马赫盘处微粒的直径可以较好地估计出膨胀室中收集到的微粒的直径。
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This dissertation was focused on the research about the formation and evolution of NQB from the Late Triassic to the early middle Epoch of Jurassic Period, including integrated analyzing the characteristic of the key stratigraphic surfaces, the time of the key stratigraphy, regional rock straigraphy, biostratigraphy and chronostratigraphy, sedimentary system and depositional facies. On basis of these analysis, a tectonic evolution model have been established for NQB during from the Late Triassic to the early middle Epoch of Jurassic Period.1. After the systematic surface analysis about main stratigraphy units, we found that:(1) the bottom of Xiaochaka formation was comformity with the middle Triassic in the basin, and in the north margin it was deposited and overlapped on the different period stratigraphy before Triassic.(2) The top surface of Xiaochaka formation developed regionally karst and paleo-karst breccia, and was uncomformity with Nadigangri Formation, these things suggest that NQB in Xiaochaka depositing stage was developed from middle Triassic basin, and then an extensive regression occurred, the deposition was over and erosion come into being.(3) The lithologic assemblage, geochemistry, mixed fossils, and stratigraphy overlapping characteristic of Quemocuo Formation in early middle Jurassic indicted that the uncomformity surface was an extension-unconformity.2. Integrated analysis about stratigraphy division and correlation indicted that:(1) the paleontologic assemblage of Xiaochaka formation show its time was Carian -Norian stage of late Triassic. According to it was overlapped by late Triassic Nadigangri Formation, so Xiaochaka formation should be Carian - early Norian stage.(2) the SHRIMP Zircon U-Pb age of Nadigangri formation volcanic rocks wear vary form 216 to 205 Ma, so its time should be Norian, but maybe extended into Rhaetian Stage.(3) The age of its bottom volcanic rocks, the fossil assemblages of its middle and upper members and overlapped by lower Jurassic, indicted the age of Riganpeicuo Formation was Norian - Rhaetian stage. And the same time, the volcanic rocks geochemistry of Nadigangri and Riganpeicuo formation both reflected that they wear formed in rift tectonic settings. The lower lithologic and surface characteristic, fossil assemblages and its upper maybe was conformity with lower Jurassic, all reflected that the age of Tumengela Formation in Tumen area should be Norian - Rhaetian stage.
论文对晚三叠世—中侏罗世早期盆地的形成与演化开展了研究,包括关键地层界面特征分析、关键地层时代归属分析、区域岩石地层、生物地层和年代地层的综合对比分析、区域沉积体系与沉积相分析、岩相古地理分析,最终建立晚三叠世—中侏罗世早期羌塘盆沉积—构造动力演化模式。1、系统的对各地层单元的界面分析发现:(1)肖茶卡组底界在盆地内部与中三叠统整合关系,在盆地北缘为沉积超覆于不同时代的前三叠系之上:(2)肖茶卡组顶界面发育古岩溶角砾岩,与上覆那底岗日组为岩溶不整合接触,说明肖茶卡组沉积时期的羌塘盆地是在早中三叠世的盆地基础发展起来的,后期出现了广泛的海退事件,使盆地结束沉积并遭受风化剥蚀作用;(3)中侏罗统雀莫错组的岩性组合特征、岩石化学特征、古生物化石混积和地层的沉积超覆现象均表现出裂陷环境下形成的伸展不整合面的特征。2、综合地层划分与对比分析认为:(1)肖茶卡组古生物化石组合反映其时代为晚三叠世卡尼期—若利期,根据其上被上三叠统那底岗日组不整合覆盖,将其时代厘定为卡尼期—若利期早期;(2)那底岗日组火山岩SHRIMP锆石U-Pb年龄在216~205 Ma之间,其时代主要为若利期,可能包含有瑞替期:(3)日干配错组底部火山岩的年龄、中上部化石组合及其被下侏罗统整合覆盖,综合反映的时代为晚三叠世若利期—瑞替期,而且那底岗日组火山岩和日干配错组火山岩的地球化学成分分析反映两者均为引张构造背景下的产物;土门地区的土门各拉组的下部岩性及界面特征、化石组合和上部可能被下侏罗统整合覆盖,综合反映其时代为若利期—若利期。
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Data can also be sent in freely when necessary to modify processing program such that the deflective welding seam, caused by low accurate profile can be cleaned effectively.
另外,还可以根据现场情况,随即键入数值,修正加工程序,使因型材尺寸精度不高而有偏差的焊缝也能得倒有效清理。
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Dte can also be sent in freely when necessary to modify processing program such that the deflective welding seam caused by low accurate profile can be cleaned effectively.
另外,还可以根据现场情况,随机键入数值,修正加工程序,使因型材尺寸精度不高而有偏差的焊缝也能得到有效清理。
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Depending on the oxygen reactor design where the system will be installed smaller changes normally has to be made to adapt the functions of the systems to the individual oxygen delignification process.
本文件描述了此应用包的标准特性。根据系统要安装的不同氧漂反应器设计,通常需要有一些小的改动使它在功能上更适合特定的氧漂过程。
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Some methods aiming at the two problems have been researched. First, the optimal number of ATE site can be calculated based on a cost model of DAT-ATE. Second, the problem of test schedule which is equitant with two-dimensional Bin-Packing problem is presented. Then a TCG denotation satisfied with T-admissible rule is more convenient for combinational optimization. With Simulated annealing algorithm, better test scheduling results can be achieved; but there is no great optimization space because the efficiency of scheduling is greater than 90%. Third, A novel test compression method——Multi-capture testing is proposed to compress the stimuli. And the ATPG results show that MC achieves high compression ratio which is greater than 90% in some large-scale circuits. MISR, widely used in LBIST, is employed to compress the responses. The aliasing analysis demonstrates that the fault coverage reduction is little due to the existence of aliasing. Fourth, an improved TIC (called S-TIC) aiming at structured test is proposed based on ARM's TIC. A MC scheduling algorithm is proposed to compute the SoC test time and combine MC vectors to SoC test vectors. The scheduling results shows that test time is greatly reduced when using the proper scheduling priority.
首先,给出了低成本ATE的成本模型,根据此模型得到最低测试成本时系统级测试调度的基本参数——测试Site数;其次,本文将DAT-Scan方式的SoC测试调度等价为两维BP问题,为有效地求解该问题,将该BP问题表示为TCG图并通过模拟退火算法解决其求解过于复杂的问题,调度的结果表明该方法在测试时间上有一定改善,并指出DAT-Scan测试调度效率已经大于90%,进一步优化的空间较小;第三,本文尝试通过测试压缩来解决激励所需的测试带宽,提出了Multi-capture结构并解决了MC测试过程中的&矢量&退化问题,MC测试的ATPG结果表明其测试压缩率很高(大电路接近90%);第四,在激励获得很高压缩比的情况下,测试响应也需压缩,本文采用LBIST中常用的MISR作为MC测试的响应压缩电路,理论分析和实验结果都证明了MC测试的别名对故障覆盖率影响较小(小于2%),并对两类别名的成因做了具体分析;第五,在MC测试及其响应压缩的基础上,本文改进了ARM公司的测试控制器TIC使之适合于MC测试,为了解决MC测试矢量合成问题,本文抽取了MC测试模型,通过固定优先级的MC测试调度模拟将MC矢量合成为ATE矢量,并模拟出了总的MC测试时间。
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If therefore the executive, who has the power of convoking the legislative, observing rather the true proportion, than fashion of representation, regulates, not by old custom, but true reason, the number of members, in all places that have a right to be distinctly represented, which no part of the people however incorporated can pretend to, but in proportion to the assistance which it affords to the public, it cannot be judged to have set up a new legislative, but to have restored the old and true one, and to have rectified the disorders which succession of time had insensibly, as well as inevitably introduced: For it being the interest as well as intention of the people, to have a fair and equal representative; whoever brings it nearest to that, is an undoubted friend to, and establisher of the government, and cannot miss the consent and approbation of the community; prerogative being nothing but a power, in the hands of the prince, to provide for the public good, in such cases, which depending upon unforeseen and uncertain occurrences, certain and unalterable laws could not safely direct; whatsoever shall be done manifestly for the good of the people, and the establishing the government upon its true foundations, is, and always will be, just prerogative.
所以,如果拥有召集立法权力的执行权力,遵从真正的比例而不是代表制的表面形式,根据真正的理性而不是旧的习俗来管理所有有权利被清楚的代表的地方的代表人数,这种代表人数任何地方都不能自我宣称,而必须与它提供给公众的支持相称,这不能被认为是建立了一种新的立法权力,而是恢复了旧的和真正的立法权力,并矫正了由于时间流逝不知不觉所继承的和不可避免的引入所产生的混乱:因为既然拥有公正和平等的代表机构是人们的利益和意图所在;无论是谁使它更接近这一目标,谁便无可置疑的是这样的政府的朋友和奠基者,并不会得不到共同体的同意和许可;特殊权力也仅仅是一种权力,在取决于无法预见和不确定的事件的情况下,确定的和不可变更的法律不能安全的引导,于是君主行使它来为公众的利益服务;无论做什么,只要明显的是为人们的利益并将政府建于它真正的基础之上,是并且总是正当的特殊权力。
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The problem in the case is studied and deduced, and the way of solving problem can be discussed. Author think its motivation mechanism of Japanese joint venture in Shanghai needs to advance. The Japannish motivation mechanism is not suitable for the firm in China. But its ideas of task richness, duty expandedness, humanity welfare system, paying more attention to training etc will can be reference. It is necessary to use availability motivation mechanism according to condition in China. For example, the marketable salary system, impersonal appraising system and so on.
作者的结论是:在沪日资企业的激励机制亟待充实和提高,原来的以日本式激励机制为参考蓝本的方法已不适合中国的现状,但其工作丰富化、工作扩大化的方法,提供人性化的福利保障的做法,以及避免使员工感到和企业之间是&劳动力买卖&关系的想法,重视培训的初衷等都是有可取的地方,希望能够在新的激励理论的指导下,根据中国的实际情况,推出诸如市场化工资体系、客观评价体系等实用的激励方法。
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But the position of some of them, of the Celtic clans in particular, was sufficiently near independence within historical times to force on us the conviction that they were once separate imperia, and that Primogeniture regulated the succession to the chieftainship.
但是有一些部族、特别是凯尔特部族的地位从有史以来都近似独立,这使我们不得不深信它们过去曾一度是各别的政府,它的酋长职位是根据&长子继承权&而继承的。
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To solve the problem of channel with distortions, an adaptive circuit is configured by a new laddered method based on relevant articles, and simulation study was made on four dimensional Chua's chaos oscillator. The simulation results demonstrated that: synchronization of two chaotic oscillators can be achieved when adaptive circuit has adaptive capability. Synchronization of two chaotic oscillators cannot be achieved when adaptive circuit has no adaptive capability. Simulation studies were done for five scroll chaotic oscillators that achieve bond-orbit, coupling and pulse synchronization.
为了解决信道畸变问题,根据相关文献提出的梯度法,本文构造了一种自适应同步电路,并以四阶变型蔡氏混沌振荡电路为例进行仿真研究,仿真结果表明:当自适应同步电路具有自适应效应时能实现有噪声干扰情况下的两个混沌振荡电路的同步;若自适应同步电路没有自适应效应时,则不能使两个混沌振荡电路同步;以5涡卷混沌振荡电路为例用键波同步法、耦合同步法、脉冲同步法进行同步仿真研究。
- 推荐网络例句
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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