Using coaxial reflectors to transform multiple axisymmetric beams
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Coaxial
Matrix (chemical analysis)
Non-axisymmetric 弄醒影响实验为低速度在最好的激动频率以后被执行轴的压缩机被 axisymmetric 发现了弄醒影响实验。当数字和入口指南翼(IGV ) 的环绕的分发是逻辑的时， IGV 能施加有益的不稳定的激动的 non-axisymmetric 的 wakes 在他们的下游的转子流动领域上完成并且改进压缩机鈥檚 表演。在现在的纸，四 non-axisymmetric 弄醒计划被发现比 axisymmetric 更好工作的影响弄醒影响计划。与基础计划相比，最好的 non-axisymmetric 计划增加了压缩机鈥檚 山峰效率，和全部的压力上升 1.1 和 2% ，并且在 4.4% 提高了货摊边缘。non-axisymmetric 计划比 axisymmetric 计划作为从 IGV 产生的不稳定的激动信号的变化被解释的更好可行的主要原因醒来。除高周波的部件以外， non-axisymmetric 计划产生了一个有益的低频率的方形波浪的激动信号和另外的第二等的频率部件。与 axisymmetric 计划相比，激动弄醒从 non-axisymmetric 计划产生的多频率更容易得到与象清理旋涡，经过旋涡和流的旋涡那样的复杂旋涡联合关系。关键词轴的压缩机 - Non-axisymmetric - 醒来 - 联合中国(50476003 ) 的国家自然科学基础和 BUAA 的革新基础为博士支持的工程毕业。
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Coaxial
Mode (computer interface)
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In this article, we present new results on simple points, minimal non-simple sets (MNS) and P-simple points. In particular, we propose new characterizations which hold in dimensions 2, 3 and 4, and which lead to efficient algorithms for detecting such points or sets. This work is settled in the framework of cubical complexes, and some of the main results are based on the properties of critical kernels.
SIMPLE algorithm
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Coaxial
Surface Modification
Carbon fibers
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At present, most coaxial adjustment methods were evolved from traditional dial indicator coaxial adjustment method. The outer of the contour used as a benchmark to measure the axial and radial ruinous in these methods. However, these methods contain cylinder error of the shaft itself. To solve this problem, a method of using the double-layer one-dimensional Position Sensitive Detector (PSD) and laser was proposed. The laser should be fixed to the outside of the irregular rotating device, ensuring the two parts synchronous rotate ; the 6 one-dimensional PSD was divided to high and low 2 layers which were placed in coaxial position with the reference axis. The laser coaxial sweep passing the PSD, when laser coaxial and the irregular device rotate synchronous, the light of spot position on the PSD can determine the irregular rotating workpiece’s axes and the reference axis position relationship, the device can be used to adjust coaxial in this way.
Coaxial
Position (finance)
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Coaxial
Matrix (chemical analysis)
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Coaxial
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We consider the fundamental relations β and γ in simple and 0-simple semihypergroups, especially in connection with certain minimal cardinality questions. In particular, we enumerate and exhibit all simple and 0-simple semihypergroups having order 3 where β is not transitive, apart of isomorphisms. Moreover, we show that the least order for which there exists a strongly simple semihypergroup where β is not transitive is 4. Finally, we prove that γ is transitive in all simple semihypergroups, and determine necessary and sufficient conditions for a 0-simple semihypergroup to have γ transitive. The latter results obviously hold also for simple and 0-simple semigroups.
Cardinality (data modeling)
Existential quantification
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In this paper, we investigate the properties of the [0-simple] simple subsemigroups of nonnegative matrices and show that the [0-simple] simple subsemigroups of Mn(S) are completely [0-simple] simple, where S is a strong ideal subset of R+ which has no ele- ments less than 1 except 0. Finally, we illustrate that the semigroup of nonnegative matriles is interesting.
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Axisymmetric numerical codes are often used in modeling non-destructive testing phenomena, to approximate geometries and defects which are not truly axisymmetric in nature. This is especially true in cases where large computational resources are needed to model the exact geometry. However, there has been no study to confirm the nature and extent of errors introduced by an axisymmetric approximation. The gas pipeline industry makes use of bath axisymmetric and non-axisymmetric magnetizers for the magnetic flux leakage inspection of pipelines. The authors utilize this platform to perform a comparative analysis of axisymmetric and non-axisymmetric magnetizers from a design perspective and also study the differences in respective electromagnetic behavior.
Magnetic Flux Leakage
Leakage (economics)
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