نتایج جستجو برای: pressure fluctuation

تعداد نتایج: 432586  

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2006
Boris Kastening

The fluctuation pressure that an infinitely extended fluid membrane exerts on two enclosing parallel hard walls is computed. Variational perturbation theory is used to extract the hard-wall limit from a perturbative expansion through six loops obtained with a smooth wall potential. Our result alpha=0.0821 +/- 0.0005 for the constant conventionally parametrizing the pressure lies above earlier M...

The Research has shown that the primary sound source in centrifugal turbomachines is the blade passing frequency noise, which is caused by due to impac rotor exit flow with the volute and the wild pressure fluctuations. In this paper, a centrifugal blower with forward facing blades has been selected and the sound created by it in the output channel has been investigated in different operating c...

2015
Tiancheng Liu Lin Yu Guohui Ding Zhen Wang Lei Liu Hong Li Yixue Li

Evolutionary developmental biology (EVO-DEVO) tries to decode evolutionary constraints on the stages of embryonic development. Two models--the "funnel-like" model and the "hourglass" model--have been proposed by investigators to illustrate the fluctuation of selective pressure on these stages. However, selective indices of stages corresponding to mammalian preimplantation embryonic development ...

2005
P. G. Niklowitz F. Beckers G. G. Lonzarich G. Knebel B. Salce J. Thomasson N. Bernhoeft D. Braithwaite J. Flouquet

We present the study of a magnetic quantum phase transition in the itinerant-electron ferromagnet Ni3Al at high pressures. Electrical resistivity measurements in a diamond anvil cell at hydrostatic pressures up to 100 kbar and temperatures as low as 50 mK indicate that the Curie temperature collapses towards absolute zero at a critical pressure pc close to 80 kbar. Over wide ranges in pressure ...

Journal: :Indian Journal of Science and Technology 2012

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