Concept

Gas metal arc welding

Related publications (141)

Planetary Boundary Layer ozone fluxes from combined airborne, ground based lidars and Wind profilers measurements

Hubert van den Bergh, Bertrand Calpini, Valentin Simeonov, Gilles Larchevêque

Different remote sensing techniques have been used for the analysis of the air pollution in the Milan area. Results and intercomparisons from two lidars are presented, obtained from a ground based and an airborne instrument. Combining them with range resol ...

1999

Phénomènes en proche paroi et stabilité de la colonne pour un arc électrique dans les disjoncteurs basse tension

Pierre Maruzewski

Low-tension circuit breakers generally rely on the extinction of the electric arc created when the current-carrying contacts separate. The dynamics of the arc has been studied for a number of years using numerical simulations of the coupled fluid dynamics/ ...

Ecole Centrale de Lyon1999

Behaviour of a DGPS/Inertial System in Urban Environment

Phillip Tomé, Telmo Cunha

The paper describes the results of an urban survey using GPS together with a low cost inertial unit. The task was to map all the roads of a Portuguese city plus the location of bus stops, crossings and other urban equipment. This was accomplished using a c ...

1999

A high-flow hydrogen dissociator based on a surface-wave discharge

Giovanni Boero

A new type of hydrogen dissociator for polarized atomic beams, based on a surface-wave discharge at 2.45 GHz, is described. We report dissociation-degree measurements as function of gas throughput, microwave power and oxygen fraction. A dissociation degree ...

1997

Experimental investigation of high-power single-pass Raman shifters in the ultraviolet with Nd:YAG and KrF lasers

Hubert van den Bergh, Bertrand Calpini, Valentin Simeonov, Valentin Mitev, Laurent De Schoulepnikoff

Single-pass Raman cells pumped by either a quadrupled Nd:YAG (266-nm) laser or a KrF excimer laser are studied. The Raman-active gases comprise H2, D2, or CH4, as well as a mixt. of them, with the addn. of He, Ne, or Ar. A parametric study, in which the St ...

1997

Performances of 3.9 MWTH Ammonia Heat Pumps within a District Heating Cogeneration Power Plant: Status After Eleven Years of Operation.

Daniel Favrat, Xavier Pelet

A complex heating and cogeneration plant including two 3.9 MWth ammonia heat pumps and two 3 MWel gas turbines with heat recovery boilers and three strage tanks has been in operation since 1986. This paper is a result of an expreimental evaluation during t ...

1997

Optimal node disjoint paths on partial 2-trees: A linear algorithm and polyhedral results

Thomas Liebling, François Margot

We present an O(p*n) algorithm for the problem of finding disjoint simple paths of minimum total length between p given pairs of terminals on oriented partial 2-trees with n nodes and positive or negative arc lengths. The algorithm is in O(n) if all termin ...

1995

Infiltration of fiber preforms by a binary alloy: Part II. Further theory and experiments

Andreas Mortensen

In a previous article,[1] a theoretical analysis was developed to describe the infiltration of fiber preforms by a binary alloy, and its solution was given for unidirectional adiabatic infiltration under constant applied pressure. This article further deve ...

1992

Cold Boronization in Tca

Basil Duval, Christoph Hollenstein

Boronisation of the TCA vacuum vessel was performed at ambient temperature. The paper presents detailed surface analysis of the coating and a description of the tokamak performance after boronisation. The obtained coatings showed a film composition close t ...

1990

Pressure dependence in the multiphoton dissociation of sulfur-32 hexafluoride

Hubert van den Bergh

The multiphoton dissocn. of 32SF6 was studied in the presence of several inert gases. The reciprocal dissocn. yields increase with increasing total pressure in a nonlinear way for the conditions applied. Different collisional quenching efficiencies were ob ...

1978

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