This paper reanalysed the 255 sets of geothermal two-phase flow data of Freeston et al (1983). A new void fraction correlation is proposed in this paper. The new correlation is derived from the analysis of two-phase flow velocity distribution using the Seventh Power Law as: To predict the two-phase pressure drop, an equivalent pseudosingle-phase flow having the same boundary layer velocity dist...

In this paper, a new robust non-overlapping twophase clock generator with adjustable duty cycle is proposed. The generator is based on a differential negative edge trigged D flip-flop and has small area and power consumption. The maximal clock rate and delay are also improved reaching a clock frequency of 1.0 GHz in a standard 0.35 μm CMOS process. The new clock generator is inherently glitch a...

We develop in this paper a moving mesh spectral method for the phase-field model of twophase flows with non-periodic boundary conditions. The method is based on a variational moving mesh PDE for the phase function, coupled with efficient semi-implicit treatments for advancing the mesh function, the phase function and the velocity and pressure in a decoupled manner. Ample numerical results are p...

Location-Routing Problem (LRP) can model several life situations. In this paper we study The Capacitated Location Routing Problem (CLRP) which is defined as a combination of two problems: the Facility Location Problem (FLP) and the Vehicle Routing problem (VRP). We propose a twophase approach to solve the CLRP. The approach is based on Simulated Annealing algorithm (SA) and Ant Colony System (A...

The paper comes out of a month-long case study information literacy education in two public libraries small South African town the rural province Mpumalanga, undertaken October 2004. participant observation is second phase twophase mixed methods study, which explores capacity Africa for – context dire shortage school libraries. focus on connections between and schools. However, relations their ...

The microstructure, tensile, and creep behavior of a Ti-5Al-45Nb (at. pct) alloy was evaluated. The main objective of processing and characterizing this alloy was to obtain the constituent properties of a fully-b Ti-Al-Nb alloy to aid in modeling the tensile and creep properties of twophase orthorhombic + body-centered-cubic (O + bcc) alloys. A second objective was to compare the tensile and cr...

Vehicles for future manned space missions will demand unprecedented increases in power requirements and heat dissipation. Achieving these goals while maintaining acceptable size and weight limits will require replacing present single-phase thermal management components with far more efficient twophase counterparts. This study discusses the development of an experimental facility for the study o...

In this paper, we propose a tree annotation tool using a parser in order to build a treebank. For the purpose of minimizing manual effort without any modification of the parser, it performs twophase parsing for the intra-structure of each segment and the inter-structure after segmenting a sentence. Experimental results show that it can reduce manual effort about 24.5% as compared with a tree an...