Results 271 to 280 of about 292,271 (308)
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Building Wall and Coating Condition Evaluation
SSPC 2014 Greencoat, 2014Abstract The performance of coatings applied to cementitious building walls is a function of both the coating itself and the integrity of the building wall assembly. This paper addresses the tests that can be conducted to assess both the condition of the exterior coating system and the building walls, including: infrared thermal imaging;
Kevin J. Brown, Kenneth A. Trimber
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Wall conditioning of the Thor Tokamak
Il Nuovo Cimento B Series 11, 1980The conditioning of the walls of Thor container by means of cleaning hydrogen discharges allowed a reduction of the influence of light impurities as oxygen and carbon on the plasma; as a consequenceZeff was also reduced. The experimental results seem to confirm the correlation between the cleaning and the amount of water and methane in the discharge ...
G. Bonizzoni, S. Cirant, M. Fontanesi
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The wall conditioning techniques in RFX
Vacuum, 1996The vacuum vessel of RFX has a total volume of 10 m(3) and a surface exposed to the vacuum of 40 m(2). It is completely covered with 2016 graphite tiles. The following wall conditioning techniques are applied: baking up to 350 degrees C, GDC and PDC in H-2 and He. Moreover, in order to reduce Z(eff) in the plasma discharge, a GDC assisted deposition of
P. Sonato +11 more
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Initial phase wall conditioning in KSTAR
Nuclear Fusion, 2011The initial phase wall conditioning in KSTAR is depicted. The KSTAR wall conditioning procedure consists of vessel baking, glow discharge cleaning (GDC), ICRH wall conditioning (ICWC) and boronization (Bz). Vessel baking is performed for the initial vacuum conditioning in order to remove various kinds of impurities including H2O, carbon and oxygen and ...
Suk-Ho Hong +24 more
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Wall‐stress boundary conditions for variational‐multiscale LES
International Journal for Numerical Methods in Fluids, 2011AbstractTwo methods are introduced for the implementation of wall‐stress boundary conditions in variational‐multiscale large‐eddy simulations. In both methods, the boundary conditions are applied weakly using an interior‐penalty approach, where the discretization parameters are determined using information from a wall‐stress model.The performance of ...
Hulshoff, S. J. +2 more
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Arterial wall tethering as a distant boundary condition
Physical Review E, 2009A standing difficulty in the problem of blood vessel tethering has been that only one of the two required boundary conditions can be fully specified, namely, that at the inner (endothelial) wall surface. The other, at the outer layer of the vessel wall, is not known except in the limiting case where the wall is fully tethered such that its outer layer ...
S, Hodis, M, Zamir
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Retaining Wall Field Condition Inspection, Rating Analysis, and Condition Assessment
Journal of Performance of Constructed Facilities, 2016In the past, highway retaining walls were assets that were often excluded from inventory programs and were regarded as noncritical or lost assets. With the recognition that wall failures may be detrimental to the roadway and the surroundings and may pose potential hazards to the safety of the public, several highway agencies have begun to incorporate ...
Cedrick J. Butler +5 more
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Rough-wall turbulent heat transfer with step-wall temperature boundary conditions
Journal of Thermophysics and Heat Transfer, 1992Stanton number measurements are presented for the turbulent boundary layer flow of air on rough-wall flat plates with both constant wall temperature and step wall temperature boundary conditions. Two rough surfaces were used—one roughened with hemispheres spaced four diameters apart and the other with hemispheres spaced two diameters apart.
Robert P. Taylor +3 more
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Wall conditioning techniques for fusion devices
Vacuum, 1990Abstract Based on recent reviews an overview is given on todays conditioning techniques for the inner walls of fusion devices and their influence on the plasma performance. In addition to discharge cleaning in hydrogen (RG, ECR, GD, TD-cleaning) which were developed for metallic inner surfaces, helium conditioning, carbonization, boron and beryllium ...
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[Defecography in rectal wall prolapse conditions].
La Radiologia medica, 1999Pelvic floor and rectal prolapse conditions have greatly benefitted by new imaging and instrumental diagnostic approaches, and especially defecography, for both pathophysiological interpretation and differential diagnosis. We investigated the efficacy of defecography in the assessment of rectal prolapse, and in particular the role of videoproctography ...
A, Salzano +7 more
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