Durability of reinforced concrete is correlated to the water content. Since main cause content increase rainwater supply from surface, it important understand mechanism absorption. This paper analyzes initial absorption cement mortar caused by capillary phenomena. Absorption test for two liquids were conducted various mix proportions under several relative humidity and surface treatments. By us...

The aim of the present work was to confirm the usefulness of the dissolution/permeation system (D/P system) in the estimation of human oral absorption of poorly water-soluble drugs. The D/P system, which can simultaneously evaluate drug absorption processes, dissolution and permeation, can predict the oral absorption of poorly water-soluble drugs in fasted and fed humans, with a correlation bet...

To elucidate the mechanisms associated with water absorption in the intestine, we compared drinking and intestinal water absorption in freshwater- and seawater-adapted Japanese eels, and investigated a possible involvement of aquaporin (AQP) in the absorption of water in the intestine. Seawater eels ingested more water than freshwater eels, the drinking rate being 0.02 ml kg(-1) h(-1) in fresh ...

Proteins, molecules, and macromolecular assemblies in water are surrounded by a nanometer-sized hydration layer with properties very different from bulk water. Here, we use classical molecular dynamics simulations to study the dielectric response of hydration water next to hydrophobic and hydrophilic planar surfaces. We find the interfacial dielectric absorption of water to be strongly anisotro...

Hot water supplies account for approximately 30% of energy consumption in residential sectors of Japan; it is therefore important that the energy efficiency of water heaters be improved. Absorption heat pump water heaters are expected to provide greater efficiency than conventional water heaters that use gas. However, the absorption systems have larger volumes and are not widely accepted in the...

American Dental Association Health Foundation, Paffenbarger Research Center, National Institute of Standards and Technology, Gaithersburg, MD 20899-0001 Integrated near infrared (NIR) absorbance has been used to determine the absorptivity of the y2 + y3 combination band of the asymmetric stretch (y2) and the bending vibration (y3) for water in several organic solvents. Absorptivity measured in ...

Controversy continues regarding the optimal composition of glucose electrolyte oral rehydration solutions for the treatment of acute diarrhoea. Four perfusion models (normal human jejunum, normal rat small intestine, cholera toxin treated secreting rat small intestine and rotavirus infected rat small intestine) have been developed and used to compare the efficacy of a hypotonic oral rehydration...

Water absorption and transport property of textiles is important since it affects wear comfort, efficiency of treatment and functionality of product. This paper introduces an accurate and reliable measurement tester, which is based on gravimetric and image analysis technique, for characterising the transplanar and in-plane wicking property of fabrics. The uniqueness of this instrument is that i...

The breakdown strength characteristic of Low Density Polyethylene films (LDPE) under DC voltage application and the effect of water absorption have been studied. Mainly, our experiment was investigated under two conditions; dry and heavy water absorption. Under DC ramp voltage, the result found that the breakdown strength under heavy water absorption has a lower value than dry condition. In ord...

The purpose of this study was to determine if lowering carbohydrate (CHO) concentration in a sport drink influences gastric emptying, intestinal absorption, or performance during cycle ergometry (85 min, 60% VO(2peak)). Five subjects (25 +/- 1 y, 61.5 +/- 2.1 mL . kg(-1) . min(-1) VO(2peak)) ingested a 3% CHO, 6% CHO, or a water placebo (WP) beverage during exercise. Gastric emptying was determ...