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This study evaluates the size effect in the shear performance of reinforce concrete beams with recycled coarse aggregates. The test variables include the type of aggregat [...]
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Application of the recycled aggregate is a promising technology for resource saving and low environmental impacts, which is more effectively performed when recycled fine [...]
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Lime water, esters of silicic acid and plastics are common materials used for the conservation of historic mortars. Injection grouts containing cement or hydraulic lime a [...]
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The reactors VVER – 440 are cooled and moderated by pressurized water – PWR. The primary coolant is subcooled in the PWR and steam is generated by transferring energy [...]
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This paper presents some results of the thermal deformation analysis of screwed toothed rim. The loading was determined by thermal gradients and by prestressing of connec [...]
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The paper presents the description of behavior of selected soils subjected to relatively high hydraulic gradients based on experimental results. The influences of all maj [...]
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Efficient nano materials for consolidation, cleaning and hydrophobization of porous historic materials have been developed in several European and national research proje [...]
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Waste concrete accounts for a substantial fraction of construction waste, and the recycling of waste concrete as concrete aggregate for construction is an important chall [...]
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The consolidation process of old renders with loss of cohesion is nowadays performed usually with inorganic compatible products, such as calcium or barium hydroxide or et [...]
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Despite long evolution dating long time back, fracture processes still remain a big challenge for engineers and researchers all over the world. Lately, together with “t [...]
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Glazed ceramic tiled façades are a cultural, architectural and social heritage that has to be protected in order to continue to have these history marks of our ancestors [...]
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We present a Computational Fluid Dynamics (CFD) model that predicts the sedimentation of activated sludge in a full-scale circular secondary clarifier that is equipped wi [...]
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The consolidation and conservation of historic mortars requires materials which are compatible with the components originally used. The application of nano-lime offers su [...]
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In the domain of heritage buildings conservation, interventions must be designed, whenever possible, to maintain existing materials instead of their replacement by new on [...]
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Loss of adhesion is one of the main forms of degradation of old renders; it can cause the separation of different render layers or the separation of the render and substr [...]
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The paper deals with experimental investigation of the dense fine-grained slurries focused on the slurry pressure drops versus average velocity relationship. The content [...]
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This work contains the study of turbulent particle-laden channel flow, in which the particles experience a drag force. The method used for simulation of the liquid phase [...]
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A Computational Fluid Dynamics (CFD) prediction procedure for computing the internal hydrodynamic behaviour of final clarifiers is presented. Calculations are carried out [...]
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19.
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Hrůza, V.
During fonation the vocal folds are excited by air flow. This air is portioned by vocal folds into separated air bubbles. These are the cause of the source voice. It is o [...]
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Dynamics of separation process of a turbulent boundary layer subjected to adverse pressure gradient is studied experimentally. The Time Resolved PIV method is used to acq [...]
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21.
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Beran, P.
Deterioration of masonry is caused by inordinate loading and by climatic actions. Climatic cyclic thermal stress in structure is incurred by unequal temperature gradient [...]
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Flow behavior of coarse-grained slurry depends generally on particle size, shape, density and concentration. The present paper describes the results of experimental inves [...]
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The aim of this contribution is to investigate aggregation efficiencies when high (G= 260 s-1) and low (G= 60 s-1) intensity agitation is applied for a treatment of surfa [...]
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This paper summarises the preliminary results concerning an influence of the agitation conditions on the aggregation processes. The properties of formed aggregates affect [...]
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