Problem statement: Nowadays, the use of waste tyre in concrete has become technically feasible and the tyre mixed concrete is light weight and called as rubberized concrete. Still the research is going on to explore basic engineering properties such as transport properties viz, acid absorption test, water absorption tests, impact resistance, modulus of elasticity, dynamic modulus and so on. In ...

Optical parameters (absorption coefficient k, infinite reflectance Rinfinity, scattering coefficient 8) are tabulated for seven wavelengths and analyzed for statistical differences for 30 plant species. The wavelengths are: 550 nm (green reflectance peak), 650 nm (chlorophyll absorption band), 850 nm (infrared reflectance plateau), 1450 nm (water absorption band), 1650 nm (reflectance peak foll...

This work aimed at studying the effect of PGE2 on water and chloride absorption from the rat distal colon and at investigating the involvement of the cytoskeleton in the modulation of colonic transporters. PGE2 increased significantly net water and chloride absorption. It increased also the activity of the Na+K+-ATPase and the expression of the Na+K+2Cl- cotransporter. The increase in pump acti...

The relative importance of phosphorus and nitrogen absorption fkom water and sediments by Egeria densa Planch. (Hydrocharitaceae), a subinerged macropliyte very common in Pampean streams in Argentina, was experiiiientally assesced. Two experiments were performed to determine the importance of water as opposed to sediment cource of phosphorus, and to investigate the effect oftype of nitrogenouc ...

OBJECTIVES To assess the efficacy of an L-glutamine solution on jejunal salt and water absorption in cholera patients. DESIGN A randomized double-blind jejunal perfusion study. SETTING International Centre for Diarrhoeal Disease Research, Bangladesh. PATIENTS Nineteen adults with acute cholera. INTERVENTIONS Perfusion of balanced salt solutions alternated with defined glucose salt solut...

The intensity of water absorption in the region of the solar spectrum plays a dominant role in atmospheric energy balance and hence strongly influences climate. Significant controversy exists over how to model this absorption accurately. We report dipole moment measurements of highly vibrationally excited water, which provide stringent tests of intensities determined by other means. Our measure...

fire-retarding properties of wollastonite nanofibers in poplar wood (populus nigra) were studied here. some physical properties such as water absorption, volumetric swelling and anti-swelling efficiency (ase) were also measured. specimens were prepared according to the iso 11925 specifications for the fire-retarding properties and according to the astm d4446 -2002 specifications for the physica...

concrete is the most common material used to line irrigation canals and must maintain its durability for the lifetime of the canal. compressive strength has been used as an index to control the quality of concrete; concrete that remains durable under freeze-thaw conditions is that with high compressive strength. research has shown that concrete linings can show suitable compressive strength in ...

In remote sensing, many spectral indices such as NDVI (Normalized Difference Vegetation Index) or NDWI (Normalized Difference Water Index) have been developed for plant management in agriculture. However an essential problem exists that the remote sensing indices are not based theoretically on the spectral properties of the molecules of photosynthetic pigment, nutrient or water in plant. This a...

Water vapor error function absorption coefficients for visible and near ir radiation have been recalculated from experimental transmission data. The error function absorption coefficients and the resulting transmissions as a function of precipitable water vapor are tabulated for wavelengths from 0.2 micro to 1.3 micro. Comparisons are made between computed and measured spectral transmittances.