نتایج جستجو برای: aui main limestone

تعداد نتایج: 597161  

ژورنال: سلامت کار ایران 2017

Background and aims: The emission of sulfur dioxide in air has hazardous effects on human health and environment. In this research the use of surfactants with sodium bicarbonate and limestone for the removal of sulfur dioxide was studied. Methods: A packed scrubber was used and the effect of absorbents (limestone or sodium bicarbonate), the kind and concentration of surfactants were assessed...

Journal: :JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 1995

2007
Paul G. Landry Bryan L. Hoke

ABSTRACT: Delineation of the NAPL source zone in the vicinity of an oil burn pit (OBP) at Letterkenny Army Depot (LEAD) revealed the presence of source material on both sides of a nearby groundwater divide resulting in a bilobate plume. While the northern lobe of the plume migrating from the OBP had been well defined, the southern lobe of the plume had been previously undetected. An investigati...

شمعانیان, غلامحسین, رقیمی, مصطفی , قلی پور, محسن , مهدوی آکردی, مهدی ,

Portland cement could be produced by heating the raw materials (clay, lime stone) about 1500°C which clinker will be formed. The geochemistry and mineralogical studies of raw materials, clinker, Portland cement and dust have been carried out by optical microscopy, X-ray diffraction and X-ray florescence. The results of spectrometry indicate the presence of calcite mineral in limestone, montmori...

2014
Giovanna Concu Barbara De Nicolo Monica Valdes

The aim of this study was to evaluate ultrasonic P-wave velocity as a feature for predicting some physical and mechanical properties that describe the behavior of local building limestone. To this end, both ultrasonic testing and compressive tests were carried out on several limestone specimens and statistical correlation between ultrasonic velocity and density, compressive strength, and modulu...

2007
M. Akram M. Z. A. Bakar

Nine rock types including Sandstone, Limestone, Siltstone, Dolomite and Marl collected from six different rock formations of the Salt Range area of Pakistan were tested to evaluate the correlations between the uniaxial compressive strength and the corresponding values of the point load index. Two hundred rock cores were drilled and used for the uniaxial compressive strength and point load index...

Journal: :Chemistry: A European Journal 2021

The use of weak bases and mild conditions is currently the most sustainable attractive synthetic approach for preparation late-transition metal complexes, some which are widely used in catalysis, medicinal chemistry materials science. Herein, cuprate, aurate or palladate species a continuous flow CuI, AuI PdII-NHC complexes reported. All reactions examined proceed under extremely make technical...

2007
Ralph E. J. Boerner Elaine Kennedy Sutherland

Young’s Branch (YB), located on a portion of the Wayne National Forest in Lawrence County, is located on bedrocks belonging to the Allegheny group. By contrast, Bluegrass Ridge (BR), the other study area in Lawrence County, is underlain by sedimentary strata of the Connemaugh group. The bedrock complex includes a combination of sandstones, sandy shales (or siltstones), and clay shales (Denton e...

2011
Duc Hai Do Eckehard Specht

Abstract— This paper presents a method to evaluate the reaction rate coefficient, the pore diffusivity and the thermal conductivity of the lime layer in the decomposition of limestone of various origins with an analytical solution, based on the shrinking core model. Long cylindrical limestone samples with diameters greater than 20 mm were prepared and thermally decomposed in a chamber furnace ...

Journal: :American journal of hypertension 2000
L A Bortolotto J Blacher T Kondo K Takazawa M E Safar

The pulse wave velocity (PWV) and the photoplethysmogram (PTG) are noninvasive methods for evaluating the pulse wave. The PWV has been associated with age and arterial hypertension, and an index of the second derivative of PTG (SDPTG) is correlated with age and other risk factors for atherosclerosis. The aim of this study was to compare SDPTG and PWV concerning the influencing factors of vascul...

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