排序方式: 共有23条查询结果,搜索用时 15 毫秒
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Pentagalloyl Glucose (PGG) Partially Prevents Arterial Mechanical Changes Due to Elastin Degradation
Pavey S. N. Cocciolone A. J. Gutierrez Marty A. Ismail H. N. Hawes J. Z. Wagenseil J. E. 《Experimental Mechanics》2021,61(1):41-51
Experimental Mechanics - Elastic fibers are composed primarily of the protein elastin and they provide reversible elasticity to the large arteries. Degradation of elastic fibers is a common... 相似文献
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I.D. Pavey 《Journal of Electrostatics》2009,67(2-3):251-255
Propagating brush discharges can occur inside conductive pipework with an insulating liner when pneumatically conveying powders. Flexible plastic hoses with embedded wire spirals are frequently used for pneumatic transfer, but it has not been clear if they have the same problem. This work shows that propagating brush discharges can occur in structures modelling such hoses. Further work is required to establish if mitigating factors are present in actual hoses. Nevertheless, the advice from this work must be that such hoses should not be used for pneumatic transfer of flammable powders unless the plastic is static dissipative or conductive. 相似文献
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Simple Zeros of the Riemann Zeta-Function 总被引:1,自引:0,他引:1
Assuming the Riemann Hypothesis, Montgomery showed by meansof his pair correlation method that at least two-thirds of thezeros of Riemann's zeta-function are simple. Later he and Taylorimproved this to 67.25 percent and, more recently, Cheer andGoldston increased the percentage to 67.2753. Here we proveby a new method that if the Riemann and Generalized LindelöofHypotheses hold, then at least 70.3704 percent of the zerosare simple and at least 84.5679 percent are distinct. Our methoduses mean value estimates for various functions defined by Dirichletseries sampled at the zeros of the Riemann zeta-function. 1991Mathematics Subject Classification: 11M26. 相似文献
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This paper concerns a Markov operator T on a space L1, and aMarkov process P which defines a Markov operator on a spaceM of finite signed measures. For T, the paper presents necessaryand sufficient conditions for:
- a the existence of invariant probabilitydensities (IPDs)
- b the existence of strictly positive IPDs,and
- c the existence and uniqueness of IPDs.
- b the existence of strictly positive IPDs,and
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A prime geodesic theorem is derived for rank-one geodesics in quotients of SL4. This has applications in class number asymptotics for quartic fields. For these applications it is necessary to prove a
more general statement than in the literature: several regularity conditions have to be abandoned. As a consequence, the analytical
difficulties multiply. The final result is obtained by a sandwiching argument from infinitely many independent asymptotics. 相似文献
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应用新发展的单一轨迹积分方法求解库仑加线性位的基态量子波函数,得到基态能量和波函数的一般解析表达式,并讨论了解的收敛性.应用此方法讨论了重夸克偶素系统. 相似文献