The dust-bathing behavior of Lohmann Selected Leghorn hens was compared in 4 enriched colony housing systems and in an aviary system. The enriched colony housing systems differed especially in the alignment and division of the functional areas dust bath, nest, and perches. Forty-eight-hour video recordings were performed at 3 time-points during the laying period, and focal animal sampling and b...

The surrounding rock control technology of mining roadways in large inclination seams with a weak structural plane the roof is one most challenging fields underground roadway support. In view serious deformation transportation 1201 working face mine, and failure characteristics instability mechanism are analysed. self-stability mechanical model block structure under support effect established, ...

The space mapping is powerful technique for modeling a handset antenna. Thin-wire models are oppressed as coarse models in SM algorithm and fine models which is high accuracy electromagnetic simulations. We apply space mapping to design of antenna firstly We manipulate a coarse-mesh method of moments (MoM) solver as coarse model and align it with the fine-mesh MoM solution through space mapping...

In a tractor hydraulic/transmission oil contamination is a serious problem as it works in such environment, these contamination may be in different forms dust particles, water, oxidation & corrosion products ,wear metal particles. Metal wear particles plays a significant role in failure of hydraulic system such as jamming of control valve, worn out of sealing element etc. Removal of these metal...

Ferrocement as a form of reinforced concrete constructed of hydraulic cement mortar strengthened with closely spaced layers of continuous and relatively small diameter wire mesh. It has been used worldwide as a construction material to provide better construction and rehabilitation of structures. Moreover, there may be structural deterioration of ferrocement due to the exposure of saline water....

We describe a cage to be used for foster nursing in order to guarantee that original mother's colostrum is not ingested by the newborn mice. A common (30.5 cm x 19.5 cm x 12.0 cm) mouse cage was fitted with a wire net tray with a mesh (1 cm x 1 cm), which divides the cage into an upper and a lower compartment. Mice born to females placed in the upper compartment pass through the mesh and fall i...

Using single/multiple layers of highly conductive metallic wire mesh screen bonded to a plain heat transfer base surface, the two-phase heat transfer performance of a microjet impinging onto a porous coated copper surface was studied. Experiments were conducted at three different flow rates of water under atmospheric pressure. For comparison, experiments of jet impinging on a plain copper surfa...