The addition of corrosion inhibitors into the acidic environment is an environmental modification to control rate corrosion. Organic compound become environmentally friendly alternative. In this study, research and analysis have been carried out on jackfruit peel extract as a inhibitor for AISI 1037 carbon steel protection in 1M HCl solution. Variation concentration 200-3000 ppm. Corrosion meas...

an experiment was conducted as a split plot based on complete randomized block design with three replications in the fall of 2010 at the farm of lorestan university, khorramabad, iran. four winter wheat cultivars (marvdasht, azar, shiraz and line m-79-7) as the main plot and levels of iron oxide nanoparticles (ion) along with control treatment were the subplot. iron fertilizer spraying was done...

The modulating effect of five dose levels of butylated hydroxytoluene (BHT) on liver and bladder carcinogenesis induced in rats by concurrent exposure to 2-acetylaminofluorene (AAF) was investigated. AAF at a low dose of 50 ppm was fed simultaneously with concentrations of 100, 300, 1000, 3000, or 6000 ppm BHT in the diet to male F344 rats for up to 76 weeks. By 12 weeks, AAF alone induced alte...

Jojoba (Simmondsia chinensis L.) is a perennial shrub adapted to dry and hot climates. It produces high-quality seed oil that widely used in the industrial, cosmetic, pharmaceutical sectors. Soil salinity often constraint plants grown under desert conditions. Thus, present study, we aim select establish salt tolerant-jojoba cultivars using vitro culture. seeds were sown on germination media sup...

Nine egg-white-based diets supplemented with three levels of vitamin C from L-ascorbyl-2Ž . polyphosphate 0, 50 and 3000 mgrkg for each of the three levels of iron from iron methionine Ž . 0, 30 and 300 mgrkg were each fed to juvenile channel catfish in triplicate aquaria twice daily to apparent satiation for 14 weeks. Fish fed with iron-deficient diets had decreased weight gain, feed conversio...

Use of ZnO at high doses (3000 ppm) for diarrhea prophylaxis in piglets is widely extended in postweaning Spanish diets, in compliance with the national veterinary regulation. However, European feed legislation limits total dietary Zn to a maximum of 150 mg/kg of complete feed. The objective of this study was to compare a new potentiated form of ZnO, HiZox (Animine), at nutritional level (150 p...

Pregnant Sprague-Dawley rats were exposed to ethylbenzene (EB; 0, 250, or 1000 ppm) and methylethylketone (MEK; 0, 1000, or 3000 ppm), alone and in combination, by inhalation, for 6h/day, during days 6-20 of gestation. Maternal toxicity, evidenced by decreased in body weight gain and food consumption, tended to be greater after simultaneous exposures to the high concentrations of 1000 ppm EB an...

Introduction: Observations of terrestrial levels of highly volatile elements in lunar apatite, including H [1-3], suggested that some lunar melts were at least “damp” if not “wet” at some point in their histories. On the other hand, the very high δCl values in lunar rocks and apatites (up to ~+30‰ [4]) have been taken to mean that their parent magmas were essentially anhydrous, because such lar...

This paper presents results of investigation of scaling of calcium sulfate (CaSO4) on metallic pipes. In this study, the optimizing variables; namely temperature (50-600C), concentration of Ca2+ (2000-3000 ppm), citric acid concentration (10-20 ppm) were set-up to provide the optimum yield of the mass scales. The mineral scale detected using XRD is mainly gypsum, and the scale has a plate like ...

Risk assessments often must consider exposures that vary over time or for which the exposure duration of concern differs from the available data, and a variety of extrapolation procedures have been devised accordingly. The present experiments explore the relationship(s) between exposure concentration (C) and time (t) to investigate procedures for assessing the risks of short-term solvent exposu...