A numerical model of axisymmetric convection in the presence of a vertical magnetic flux bundle and rotation about the axis is presented. The model contains a compressible plasma described by the nonlinear MHD equations, with density and temperature gradients simulating the upper layer of the sun’s convection zone. The solutions exhibit a central magnetic flux tube in a cylindrical numerical do...

Abstract The present study introduces the concept of mitigating pressure pulsations in a hydro-turbine draft tube. refers to using an adjustable guide vane system adjustability relates its ability rotate around axis. test rig for experimental is high-head Francis model turbine. Three sets vanes are distributed evenly circumferentially Each consists two hydrofoils. upper hydrofoil can move lower...

Aluminum alloys are considered a lot in the automotive and aerospace industry because of their high strength to weight ratio. In this manuscript, the gas forming process of aluminum AA6063 tubes at high temperatures up to 500°C is investigated, through experimental and numerical tests. Therefore, an experimental setup is prepared and so, tube specimens are formed in a die with square cross sect...

Hydroforming patch technology for damaged screen pipes is designed based on tube hydroforming technology, and the methods determining forming pressure range defects are selected according to process. The model established technical demand parameters pipe repair. From mechanical properties of material digital–analog comparison analysis formability, it found that determiners formability (such as ...

Two-phase flow regimes are affected by conduit position, alignment, geometry, flow direction, physical characteristics, and flow rate of each phase as well as the heat flux toward the boundaries. Due to the importance of two-phase flow, numerous regimes have been identified. The first step in studying micro-bubble formation inside a venturi tube is to recognize the type of flow regimes. In this...

In the title compounds, C25H29BrN5O7, (I) [systematic name: (Z)-1(5)-bromo-3(2),3(2)-dimethyl-2(1)-nitro-2(2),2(3),2(5),2(6),2(7),2(7a),3(3a),3(5),3(6),3(6a)-deca-hydro-2(1) H,6(1) H-4,9-dioxa-2(3,2)-pyrrolizina-6(4,1)-triazola-3(5,6)-furo[2,3-d][1,3]dioxola-1(1,2)-benzena-cyclo-nona-phane], and C24H29N5O7S, (II) [systematic name: (Z)-3(2),3(2)-dimethyl-2(7)-nitro-2(5),2(6),2(7),2(7a),3(3a),3(5...

introduction: during early neural tube formation, the notochord is essential for the induction of ectoderm and for the subsequent differentiation of the neuroepithelium forming diverse cell types in the neural tube. due to the key role of the glycoconjugates in many developmental events, the early distribution of these molecules in early notochordal interaction with adjacent tissues were studie...