Abstract In general two basic methods are used for controlling the velocity of a hydraulic cylinder. First by an axial variable-displacement pump for controls flow to the cylinder. This configuration is commonly known as a hydrostatic transmission. Second by proportional valve powered by a constant-pressure source, such as a pressure compensated pump, drives the hydraulic cylinder. In this stud...

We study the evolution of a viscous fluid drop rotating about a fixed axis at constant angular velocity Ω or constant angular momentum L surrounded by another viscous fluid. The problem is considered in the limit of large Ekman number and small Reynolds number. The analysis is carried out by combining asymptotic analysis and full numerical simulation by means of the boundary element method. We ...

Elevated-temperature synthesis has been used to generate side-by-side biaxially structured silicon carbide–silica nanowires. The axial growth direction approaches @311# for nanowires with a high density of microtwins and is @211# for defect-free nanowires. The structure of these nanowires, their cross-sectional shape, and their structural transformation between a biaxial and coaxial configurati...

The title compound, C(13)H(24)O(7), is the product of the ketalization of methyl l-(+)-rhamnopyran-oside with 2,3-butane-dione. It crystallizes with two mol-ecules in the asymmetric unit, which are connected by O-H⋯O hydrogen bonds. The C-3,4 diequatorial hydroxy groups of the methyl l-(+)-rhamnopyran-oside were protected, leaving the C-2 hydroxy group free. The l-(+)-rhamnopyran-oside and 2',3...

Steroidal sapogenins bearing a good leaving group at C23 undergo a completely stereospecific rearrangement under a variety of conditions via a mechanism involving neighboring-group participation by the acetal oxygen atom in the departure of the nucleofuge from C23. The reactions of equatorial (23S)-23-bromo- or (23S)-23-tosyloxyspirostanes with either the alpha (25R) or beta (25S) oriented 25-m...

The structure of the title compound, [Sb(C(6)H(5))(3)(C(7)H(6)NO(2))(2)], contains two independent mol-ecules of similar configuration. The Sb atoms exhibit a distorted trigonal-bipyramidal geometry with the O atoms of two carboxyl-ate groups in the axial positions and the C atoms of the phenyl groups in the equatorial positions. In the crystal structure, mol-ecules are connected by inter-molec...

Abstract Residual stresses in an unloaded configuration of elastic material have a significant influence on the response from that configuration, but effect residual stress stability material, whether loaded or unloaded, has only been addressed to limited extent. In this paper we consider level can be supported thick-walled circular cylindrical tube non-linearly without loss when subjected fixe...

In this paper, we obtain the basic configuration of left-hand circular polarization (LHCP) array two patches stack triangular truncated microstrip antenna. This construction use corporate feed microstrip-line with modified lossless T-junction power divider on radiating patch for circularly polarized-synthetic aperture radar (CP-SAR) sensor embedded airspace compact, small, and simple configurat...

We present a detailed examination of the features of the Ac-3 tive Region (AR) NOAA 10798. This AR generated coronal mass ejections 4 (CMEs) that caused a large geomagnetic storm on 24 August 2005 with the 5 minimum Dst index of −216 nT. We examined the evolution of the AR and 6 the features on/near the solar surface and in the interplanetary space. The 7 AR emerged in the middle of a small cor...

We present a simple design rule for diode-laserpumped quasi-three-level lasers by using the M2 factor. The validity of this model was demonstrated by diode-pumped Yb:YAG laser experiments. The maximum output power of 1.33 W and optical slope efficiency of 63% were obtained in a 400m Yb:YAGchip miniature laser. Using a 200m Yb:YAG chip, a 70% optical slope efficiency was reached. In a coupled-ca...