Deposits of clastic carbonate-dominated (calciclastic) sedimentary slope systems in the rock record have been identified mostly as linearly-consistent carbonate apron deposits, even though most ancient clastic carbonate slope deposits fit the submarine fan systems better. Calciclastic submarine fans are consequently rarely described and are poorly understood. Subsequently, very little is known especially in mud-dominated calciclastic submarine fan systems. Presented in this study are a sedimentological core and petrographic characterisation of samples from eleven boreholes from the Lower Carboniferous of Bowland Basin (Northwest England) that reveals a >250 m thick calciturbidite complex deposited in a calciclastic submarine fan setting. Seven facies are recognised from core and thin section characterisation and are grouped into three carbonate turbidite sequences. They include: 1) Calciturbidites, comprising mostly of highto low-density, wavy-laminated bioclast-rich facies; 2) low-density densite mudstones which are characterised by planar laminated and unlaminated muddominated facies; and 3) Calcidebrites which are muddy or hyper-concentrated debrisflow deposits occurring as poorly-sorted, chaotic, mud-supported floatstones. These

Phd by thesis

The American Society for Testing and Materials (ASTM) is an independent organization devoted to the development of standards.

American Society for Testing and Materials

Much has been written about theory and practice in the law, and the tension between practitioners and theorists. Judges do not cite theoretical articles often; they rarely "apply" theories to particular cases. These arguments are not revisited. Instead the Essay explores the working and interaction of theory and practice, practitioners and theorists. The Essay starts with a story about solving a legal issue using our intellectual tools - theory, practice, and their progenies: experience and "gut." Next the Essay elaborates on the nature of theory, practice, experience and "gut." The third part of the Essay discusses theories that are helpful to practitioners and those that are less helpful. The Essay concludes that practitioners theorize, and theorists practice. They use these intellectual tools differently because the goals and orientations of theorists and practitioners, and the constraints under which they act, differ. Theory, practice, experience and "gut" help us think, remember, decide and create. They complement each other like the two sides of the same coin: distinct but inseparable.

Of Theory and Practice

Über die Adsorption in Lösungen

Chem. Pharm. Bull.(オピニオン)

Metal-NHC heterocycle complexes in catalysis and biological applications: Systematic review.

The inhibiting action of 5-[hydroxy(phenyl)methyl]-6-methylpyridazin-3(2H)-one (HPMP) on the corrosion of copper in nitric acid has been studied. The results from weight loss and electrochemical impedance measurements consistently identify HPMP as a good inhibitor. Impedance spectroscopy revealed that the corrosion of copper in nitric acid solution was influenced to some extent by charge transfer. The inhibition efficiency increases with increase in inhibitor concentration but decrease with rise in temperature (303-343K). The adsorption of HPMP onto the copper surface was found to follow the Langmuir adsorption isotherm. Various parameters (Ea, DG° ads, Kads) for adsorption reveal a strong interaction between inhibitor and copper surface. The negative values of DG° ads indicate the spontaneous adsorption of the inhibitor on copper surface. Both kinetic parameters (activation energy, pre-exponential factor, enthalpy of activation and entropy of activation) were calculated and discussed.

Electrochemical impedance spectroscopy and weight loss study for newpyridazine derivative as inhibitor for copper in nitric acid

The influence of 2-[3-(2-oxo-2-phenylethylidene)-1,4-dihydroquinoxaline-2(1H)ylidene]-1-phenylethanone (Qx1) and amino-2-aniline (Diam1) on the corrosion of steel in 1 M HCl solution has been investigated by weight loss measurements, potentiodynamic polarisation and impedance spectroscopy (EIS) methods. The inhibiting action increases with the concentration of Qx1 and Diam1. The highest efficiency (85%) is obtained at the 10 -4 M Qx1. There is good agreement between gravimetric and electrochemical methods (potentiodynamic polarisation and EIS). Polarisation measurements also show that Qx1 and Diam1 act as mixed inhibitors. The cathodic curves indicate that the reduction of proton at the steel surface happens with an activating mechanism. Qx1 adsorbs on the steel surface according to Langmuir adsorption model. Effect of temperature is also studied between 308 and 353 K.

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Adsorption and Corrosion Inhibition Behavior of C38 Steel by one Derivative of Quinoxaline in 1 M HCl

Comparative study of the effect of inorganic ions on the corrosion of Al 3003 and 6063 in carbonate solution

Potentiodynamic polarisation, electrochemical impedance spectroscopy (EIS) and weight loss measurements were used to investigate the inhibitory effect of L-Cysteine Methyl Ester Hydrochloride (L-CMEH) on corrosion of copper in 2M HNO3 solution The inhibitor showed > 97% inhibition efficiency at 10−3M EIS results show that the change in the impedance parameters (Rt and Cdl) with concentration of L-Cysteine Methyl Ester Hydrochloride (LCMEH) is indicative of the adsorption of molecules leading to the formation of a protective layer on the surface of copper Potentiodynamic polarization studies suggested that it is a mixed type inhibitor The inhibitor studied reduces the corrosion rates The results obtained from weight loss, polarisation, and impedance measurements are in good agreement

Belkheir Hammouti

Papers

Metal-NHC heterocycle complexes in catalysis and biological applications: Systematic review.

Electrochemical impedance spectroscopy and weight loss study for newpyridazine derivative as inhibitor for copper in nitric acid

Adsorption and Corrosion Inhibition Behavior of C38 Steel by one Derivative of Quinoxaline in 1 M HCl

Comparative study of the effect of inorganic ions on the corrosion of Al 3003 and 6063 in carbonate solution

L-Cysteine methyl ester hydrochloride: A new corrosion inhibitor for copper in nitric acid