a finite element analysis is presented for sloshing and impulsive motion of liquid-filled conical tanks during lateral anti-symmetric excitation. the performed analyses led to the development of a number of charts which can be used to identify the natural frequency, the mode shapes of conical tanks for both fundamental and the cos(θ)-modes of vibration. conical tank geometry was described with ...

In this paper, the buckling of non-homogeneous isotropic truncated conical shells under uniform lateral pressure and resting on a Winkler foundation is investigated. The basic relations and governing equations have been obtained for non-homogeneous truncated conical shells. The critical uniform lateral pressures of non-homogeneous isotropic truncated conical shells with or without a Winkler fou...

Extraordinarily high maximum-to-minimum gas pressure ratios appear in an oscillating closed resonator at its resonance frequency for certain resonator shapes. Using a quasi-onedimensionalmodel based on the compressibleNavier–Stokes equations and a finite volume method, we investigate the transient motion of a fluid inside oscillating axisymmetric tubes, from the quiescent condition to the perio...

We measured signiÞcant variation in the instantaneous growth rates for varroa mites, Varroa destructor (Anderson & Trueman) from 1993 to 2002 in Baton Rouge, LA. Mite population growth was monitored in colonies of honey bees, Apis mellifera L., with queens from miscellaneous U.S. sources that had not been selectively bred for varroa resistance.Mite populations weremeasured at the beginning and ...

Introduction Laboratories often modify procedures recommended by the European Urinalysis Guidelines for urine sediment analysis. The aim of this study was to compare the recommended protocol with our routine laboratory procedure and to evaluate the possible impact of modifications in the relative centrifugal force, type of tube, method of supernatant aspiration and urine volume on patient's res...

Carbon nanotubes have attracted considerable attention since their discovery,[1] and have recently been the focus of intensive investigations. Studies have revealed that nanotubes exhibit extraordinary electronic properties.[2,3] Nanotubes have been shown to ignite upon exposure to short-range flashes of light,[2] and recently ultrafast carbon-nanotubebased transistors have been shown to outper...

During capping of concanavalin A (ConA) by amoebae of Dictyostelium discoideum, each cell becomes polarized, with the ConA at one end and newly extended pseudopodia at the opposite end of the cell. This new polarity is stable until the cap is shed or internalized. Intramembrane particles (IMPs) are widely believed to represent large integral membrane proteins, many of which are ion pumps and ch...

One-dimensional digital waveguides are widely used to model traveling pressure waves along wind instrument bores comprised of concatenated cylindrical or conical sections. Waveguide filter elements model frequencydependent losses and delay (dispersion) occurring during propagation and at any boundary or discontinuity producing reflected and transmitted waves. In this work, a technique is descri...

This study was carried out to determine serum haptoglobin levels of pregnant cows with complications during pregnancy. A total 28 animals were included in the study, 14 healthy birth and complicated pregnancies, whose processes followed same farm. Blood samples taken from vena jugularis into yellow capped biochemistry tubes at 6th month their Serum albumin, globulin protein measurements made an...