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

Arsenic removal from water/wastewater using adsorbents—A critical review

Thank you very much for downloading principles of fluorescence spectroscopy. As you may know, people have look hundreds times for their favorite novels like this principles of fluorescence spectroscopy, but end up in malicious downloads. Rather than reading a good book with a cup of tea in the afternoon, instead they cope with some harmful bugs inside their desktop computer. principles of fluorescence spectroscopy is available in our digital library an online access to it is set as public so you can download it instantly. Our digital library spans in multiple locations, allowing you to get the most less latency time to download any of our books like this one. Kindly say, the principles of fluorescence spectroscopy is universally compatible with any devices to read.

Principles Of Fluorescence Spectroscopy

Green Chemistry is a relatively new emerging field that strives to work at the molecular level to achieve sustainability. The field has received widespread interest in the past decade due to its ability to harness chemical innovation to meet environmental and economic goals simultaneously. Green Chemistry has a framework of a cohesive set of Twelve Principles, which have been systematically surveyed in this critical review. This article covers the concepts of design and the scientific philosophy of Green Chemistry with a set of illustrative examples. Future trends in Green Chemistry are discussed with the challenge of using the Principles as a cohesive design system (93 references).

Green Chemistry: Principles and Practice

12.2.2. Four-Wave Mixing (FWM) 4849 12.2.3. Dye Aggregation 4850 12.2.4. Optoelectronic Nanodevices 4850 12.3. Sensor 4851 12.3.1. Chemical Sensor 4851 12.3.2. Biological Sensor 4851 12.4. Catalysis 4852 13. Conclusion and Perspectives 4852 14. Abbreviations 4853 15. Acknowledgements 4854 16. References 4854 * Corresponding author E-mail: tpal@chem.iitkgp.ernet.in. † Raidighi College. § Indian Institute of Technology. 4797 Chem. Rev. 2007, 107, 4797−4862

Interparticle Coupling Effect on the Surface Plasmon Resonance of Gold Nanoparticles: From Theory to Applications

According to the World Health Organization, antibiotic resistance is one of the main threats to global health. The excessive use of several antibiotics has led to the widespread distribution of antibiotic-resistant bacteria and antibiotic resistance genes in various environment matrices, including surface water. In this study, total coliforms, Escherichia coli and enterococci, as well as total coliforms and Escherichia coli resistant to ciprofloxacin, levofloxacin, ampicillin, streptomycin, and imipenem, were monitored in several surface water sampling events. A hybrid reactor was used to test the efficiency of membrane filtration, direct photolysis (using UV-C light emitting diodes that emit light at 265 nm and UV-C low pressure mercury lamps that emit light at 254 nm), and the combination of both processes to ensure the retention and inactivation of total coliforms and Escherichia coli as well as antibiotic-resistant bacteria (total coliforms and Escherichia coli) present in river water at occurrence levels. The membranes used (unmodified silicon carbide membranes and the same membrane modified with a photocatalytic layer) effectively retained the target bacteria. Direct photolysis using low-pressure mercury lamps and light-emitting diode panels (emitting at 265 nm) achieved extremely high levels of inactivation of the target bacteria. The combined treatment (unmodified and modified photocatalytic surfaces in combination with UV-C and UV-A light sources) successfully retained the bacteria and treated the feed after 1 h of treatment. The hybrid treatment proposed is a promising approach to use as point-of-use treatment by isolated populations or when conventional systems and electricity fail due to natural disasters or war. Furthermore, the effective treatment obtained when the combined system was used with UV-A light sources indicates that the process may be a promising approach to guarantee water disinfection using natural sunlight.

/pdf/occurrence-and-treatment-of-antibiotic-resistant-bacteria-kdzt6wa5.pdf

Occurrence and Treatment of Antibiotic-Resistant Bacteria Present in Surface Water

/pdf/metal-recovery-from-tannery-effluent-using-nanofiltration-1lhdb59f.pdf

Metal recovery from tannery effluent using nanofiltration process

Perspectives and limitations of using on-line mass spectrometry for monitoring of pervaporation processes

La presente demande d'invention concerne un procede d'elimination de composes toxiques, notamment le dioxyde de carbone, presents dans des courants de gaz dans des circuits d'anesthesie, au moyen de contacteurs a membranes. Le present procede permet la recirculation des gaz d'anesthesie, exempts de CO 2 , en direction du sujet anesthesie, ainsi que la recirculation de la phase liquide receptrice, absorbante, pour laquelle le CO 2 est elimine. La presente invention concerne egalement l'utilisation dudit procede dans le domaine de la medecine, et notamment son utilisation in situ pendant des interventions medicales dans lesquelles le sujet est anesthesie.

Procédé de purification de gaz d'anesthésie au moyen de contacteurs à membranes et ses applications

Usman Taqui Syed, LAQV/Requimte, Department of Chemistry, Faculty of Science and Technology, NOVA University of Lisbon, Campus de Caparica, 2829-516 Caparica, Portugal s.taqui@campus.fct.unl.pt Sylvia Sousa, EPQPF, Department of Chemical Engineering, FCTUC, University of Coimbra, Pólo II Pinhal de Marrocos, 3030-790 Coimbra, Portugal Ana M. A. Dias, EPQPF, Department of Chemical Engineering, FCTUC, University of Coimbra, Pólo II Pinhal de Marrocos, 3030-790 Coimbra, Portugal Hermínio C. de Sousa, EPQPF, Department of Chemical Engineering, FCTUC, University of Coimbra, Pólo II Pinhal de Marrocos, 3030-790 Coimbra, Portugal Joao Crespo, LAQV/Requimte, Department of Chemistry, Faculty of Science and Technology, NOVA University of Lisbon, Campus de Caparica, 2829-516 Caparica, Portugal Carla Brazinha, LAQV/Requimte, Department of Chemistry, Faculty of Science and Technology, NOVA University of Lisbon, Campus de Caparica, 2829-516 Caparica, Portugal

/pdf/comparative-studies-of-ultrasound-and-membrane-i4p0rku3jl.pdf

João G. Crespo

Papers

Occurrence and Treatment of Antibiotic-Resistant Bacteria Present in Surface Water

Metal recovery from tannery effluent using nanofiltration process

Perspectives and limitations of using on-line mass spectrometry for monitoring of pervaporation processes

Procédé de purification de gaz d'anesthésie au moyen de contacteurs à membranes et ses applications

Comparative studies of ultrasound and membrane emulsification for the production of stable Perfluorocarbon-in-water nanoemulsions