background: the term caustic generally refers to alkaline and the term corrosive generally refers to acidic agents' injury however, in medical literature caustic is frequently a term applied to both substances. ingested alkali typically damage the esophagus more than stomach or duodenum, whereas acids usually cause more severe gastric injury. since esophagus has a slightly alkaline ph, its...

Real annual consumption growth has averaged about 3.7% between 1998 Q1 and 2003 Q3—well above real average annual GDP growth of about 2.6% during that period. (2) Chart 1 shows that the buoyancy of consumer spending can be entirely accounted for by strong growth in durable and semi-durable goods expenditure (henceforth referred to as 'durable spending' unless otherwise specified). Since 1998 Q1...

Abstract This article investigates utilization of polypropylene microfibers as reinforcement in geopolymer concrete to enhance the ductility characteristics since is considered a brittle material. The were added at fiber volume content 0.5%, 1.0%, and 1.5%. In this article, slump test compressive strength tested for concretes measure effect on concretes. Also, static flexural dynamic loading ap...

In this paper, we develop a two-sector DSGE model with infrequent purchases of durable goods and use it to address the following three issues. Does this model help explain the recent weak recovery? Can this model help resolve the absence of co-movement between durable and non-durable consumption? Is the dynamic behavior of this model similar with that of the (durable goods) stock adjustment-cos...

We study the cyclical effects of the timing of durable goods purchases in a general equilibrium model in which both durable and non-durable goods are consumed and the durable good is lumpy. At the microeconomic level, the timing of durable goods purchases supplies some insulation for nondurable consumption over the cycle. At the macroeconomic level, the timing decisions tend to amplify and prop...

In this paper, several transversely cracked RC beams, self-anchored in a three-point bending mode, were prepared and subjected to NaCl solution drying–wetting cycles. Based on two experimental results obtained after 15 and 30 cycles, respectively, the profiles of free chloride concentration at different sections of sound and cracked concretes were presented and analyzed. The depth of surface co...