The construction scale of the shield tunnel underpass is expanding day by day. In order to study safety influence and deformation control on existing tunnel, LSSVM model established. Based collected soil storage pressure, foam volume, simultaneous grouting volume other six parameters corresponding sample data bottom displacement, horizontal displacement settlement caused approach are predicted....

A 32-year-old man was attacked by flies while camping around Khorram Abad, Lorestan Province, western Iran. Pruritic dermatitis with marked edema and considerable discomfort appeared mainly on the lower legs. The flies were identified as Simulium. Simuliids are tiny bloodsucking flies, popularly known as blackflies or buffalo flies, belonging to the dipterous, family Simulidae. They are occurre...

A new concept called the transmission ratio of ground volume loss (TRGVL) is proposed to describe variation law with depth above tunnel. Based on developed Gaussian function, formula for TRGVL deduced. Further, first-order derivative presented evaluate dilation and compression degree soil at any total 15 cases, involving eight field project cases seven model test are investigated validate ratio...

The stability of the tunnel face during tunneling is one major criteria for design and construction tunnel. Collapse blowout are two modes failure excavation. cover-to-diameter ratio main parameters controlling these modes. Several analytical solutions have been proposed to estimate range support pressure applied on avoid both collapse blowout. However, most those models deal with homogeneous s...

The objective of this project is to fabricate and characterize nanoscale hybrid tunnel-junction structures that will reveal new physical aspects of the spin-dependent quantum states and dynamic behavior of single electrons. Several interesting effects have been predicted for spindependent transport in ferromagnet (FM)/metal/ferromagnet and FM/superconductor/FM double junctions. One goal is expe...

The paper introduces the potentiality of wireless communications in road safety improvement. New systems based on Vehicle/infrastructure and vehicle/vehicle cooperation are enabled. The results of a recent project “SAFE TUNNEL” and new projects like “SAFESPOT”, “GOODROUTE”,”WATCHOVER”, are described. All these research projects are co-funded by European Commission (EC) and witness the strong co...

This paper describes the use of photogrammetry to measure and quantify ice accretion on an aerofoil section. A series of stereoscopic photographs was taken during the ice accretion on the section in an icing tunnel. From measurements made on these photographs with a Kern (Leica) DSR 14 analytical photogrammetric plotter, a series of three dimensional models of the ice surfaces was constructed. ...

The determination of traffic and earnings which are to be antici­ pated for a proposed revenue bond highway project involves many standard traffic engineering techniques, supplemented by special investi­ gations of economic and sociological factors. Traffic considerations also play an important role in preliminary studies to determine the most feasible location for the facility, whether it be a...