Now showing items 651-670 of 976

    • OpenTCC: An open source low-cost temperature-control chamber 

      Sánchez, Carlos; Dessì, Paolo; Duffy, Maeve; Lens, Piet N.L. (Elsevier, 2020-02-24)
      Microbial electrochemical technologies (MET) are emerging systems for environmental applications such as renewable energy production or pollution remediation. MET research often requires stable temperatures and low levels ...
    • Opportunistic bacteria dominate the soil microbiome response to phenanthrene in a microcosm-based study 

      Storey, Sean; Ashaari, Mardiana Mohd; Clipson, Nicholas; Doyle, Evelyn; de Menezes, Alexandre B. (Frontiers Media, 2018-11-21)
      Bioremediation offers a sustainable approach for removal of polycyclic aromatic hydrocarbons (PAHs) from the environment; however, information regarding the microbial communities involved remains limited. In this study, ...
    • Optical Observations of PSR J0205+6449 

      Shearer, Andrew (2008)
      PSR J0205+6449 is a X-ray and radio pulsar in supernova remnant 3C 58. We report on observations of the central region of 3C 58 using the 4.2-m William Herschel Telescope with the intention of identifying the optical ...
    • Optical pulsations from the anomalous X-ray pulsar 1E 1048.1-5937 

      Shearer, Andrew (2009)
      We present high-speed optical photometry of the anomalous X-ray pulsar 1E 1048.1-5937 obtained with ULTRACAM on the 8.2-m Very Large Telescope in June 2007. We detect 1E 1048.1-5937 at a magnitude of i'=25.3+/-0.2, consistent ...
    • Optical system of aplanatic telescope with a 100 m spherical primary mirror 

      Druzhin, Vladislav V.; Puryaev, Daniil T.; Goncharov, Alexander V. (Society of Photo-optical Instrumentation Engineers, 2022-06-30)
      We propose an optical system of an extremely large telescope for ground-based or planetary use. The system comprises a segmented spherical mirror with a diameter of 100 m and f-number of f/1. There are three annular zones ...
    • Optimization of a hydrogen combustion mechanism using both direct and indirect measurements 

      Varga, T.; Nagy, T.; Olm, C.; Zsély, I. Gy; Pálvölgyi, R.; Valkó, É; Vincze, G.; Cserháti, M.; Curran, Henry J.; Turányi, T. (Elsevier ScienceDirect, 2014-07-05)
      The Keromnes et al. (2013) mechanism for hydrogen combustion has been optimized using a large set of indirect experimental data, consisting of ignition measurements in shock tubes (566 datapoints in 43 datasets) and rapid ...
    • Optimized reaction mechanism rate rules for ignition of normal alkanes 

      Cai, Liming; Pitsch, Heinz; Mohamed, Samah Y.; Raman, Venkat; Bugler, John; Curran, Henry J.; Sarathy, S.Mani (Elsevier, 2016-08-10)
      The increasing demand for cleaner combustion and reduced greenhouse gas emissions motivates research on the combustion of hydrocarbon fuels and their surrogates. Accurate detailed chemical kinetic models are an important ...
    • Optimizing fluorescent protein expression for quantitative fluorescence microscopy and spectroscopy using herpes simplex thymidine kinase promoter sequences 

      Ali, Rizwan; Ramadurai, Sivaramakrishnan; Barry, Frank; Nasheuer, Heinz-Peter (Wiley, 2018-04-16)
      The modulation of expression levels of fluorescent fusion proteins (FFPs) is central for recombinant DNA technologies in modern biology as overexpression of proteins contributes to artifacts in biological experiments. In ...
    • Organic waste biorefineries: Looking towards implementation 

      Alibardi, Luca; Astrup, Thomas F.; Asunis, Fabiano; Clarke, William P.; De Gioannis, Giorgia; Dessì, Paolo; Lens, Piet N.L.; Lavagnolo, Maria Cristina; Lombardi, Lidia; Muntoni, Aldo; Pivato, Alberto; Polettini, Alessandra; Pomi, Raffaella; Rossi, Andreina; Spagni, Alessandro; Spiga, Daniela (Elsevier, 2020-07-16)
      The concept of biorefinery expands the possibilities to extract value from organic matter in form of either bespoke crops or organic waste. The viability of biorefinery schemes depends on the recovery of higher-value ...
    • The oxidation of 2-butene: A high pressure ignition delay, kinetic modeling study and reactivity comparison with isobutene and 1-butene 

      Li, Yang; Zhou, Chong-Wen; Somers, Kieran P.; Zhang, Kuiwen; Curran, Henry J. (Elsevier, 2016-06-16)
      Butenes are intermediates ubiquitously formed by decomposition and oxidation of larger hydrocarbons (e.g. alkanes) or alcohols present in conventional or reformulated fuels. In this study, a series of novel igni-tion delay ...
    • Oxidation of ethylene-air mixtures at elevated pressures, part 1: experimental results 

      Kopp, Madeleine M.; Donato, Nicole S.; Petersen, Eric L.; Metcalfe, Wayne K.; Burke, Sinéad M.; Curran, Henry J. (American Institute of Aeronautics and Astronautics, 2014-03-26)
      Shock-tube experiments have been performed to determine ignition delay times of undiluted ethylene air mixtures for temperatures from 1003 to 1401 K, at equivalence ratios from 0.3 to 2.0, and at pressures from 1.1 to 24.9 ...
    • Oxidation of ethylene-air mixtures at elevated pressures, part 2: chemical kinetics 

      Kopp, Madeleine M.; Donato, Nicole S.; Petersen, Eric L.; Metcalfe, Wayne K.; Burke, Sinéad M.; Curran, Henry J. (American Institute of Aeronautics and Astronautics, 2014-03-27)
      A chemical kinetics submechanism for small molecular weight hydrocarbons was modified by adjusting rate constants to produce better agreement with recent ethylene ignition delay time data compared with an earlier version ...
    • Oxidative stress induced by Pt(IV) pro-drugs based on the cisplatin scaffold and indole carboxylic acids in axial position 

      Tolan, Dina; Gandin, Valentina; Morrison, Liam; El-Nahas, Ahmed; Marzano, Cristina; Montagner, Diego; Erxleben, Andrea (Nature Publishing Group, 2016-06-11)
      The use of Pt(IV) complexes as pro-drugs that are activated by intracellular reduction is a widely investigated approach to overcome the limitations of Pt(II) anticancer agents. A series of ten mono- and bis-carboxylated ...
    • Partial reconstitution of DNA large loop repair with purified proteins from Saccharomyces cerevisiae 

      Lahue, Robert S. (OUP, 2008)
      Small looped mispairs are corrected by DNA mismatch repair. In addition, a distinct process called large loop repair (LLR) corrects heteroduplexes up to several hundred nucleotides in bacteria, yeast and human cells, and ...
    • Partition functions and chiral algebras. 

      Tuite, Michael P. (American Mathematical Society, 2007-05)
      We discuss recent work of the authors concerning correlation functions and partition functions for free bosons/fermions and the b-c or ghost system. We compare and contrast the nature of the 1-point functions at genus 1, ...
    • Pathogenic bacteria in our oceans' shellfish 

      Boyd, Aoife (Microbiology Society, 2019-02)
      Mussels, oysters, clams – some of the most appetising culinary dishes, such as moules-frites, feature shellfish. These foods are considered healthy as they are fresh from the ocean, but looks can be deceiving.
    • Pattern evolution in bending dielectric-elastomeric bilayers 

      Su, Yipin; Wu, Bin; Chen, Weiqiu; Destrade, Michel (Elsevier, 2019-07-24)
      We propose theoretical and numerical analyses of smart bending deformation of a dielectric-elastic bilayer in response to a voltage, based on the nonlinear theory of electro-elasticity and the associated linearized incremental ...
    • Pectin metabolism and assembly in the cell wall of the charophyte green alga penium margaritaceum 

      Domozych, David S.; Sørensen, Iben; Popper, Zoë A.; Ochs, Julie; Andreas, Amanda; Fangel, Jonatan U.; Pielach, Anna; Sacks, Carly; Brechka, Hannah; Ruisi-Besares, Pia; Willats, William G.T.; Rose, Jocelyn K.C. (American Society of Plant Biologists, 2014-03-20)
      The pectin polymer homogalacturonan (HG) is a major component of land plant cell walls and is especially abundant in the middle lamella. Current models suggest that HG is deposited into the wall as a highly methylesterified ...
    • Performance analysis of cone detection algorithms 

      Mariotti, Letizia; Devaney, Nicholas (Optical Society of America, 2015-04-01)
      Many algorithms have been proposed to help clinicians evaluate cone density and spacing, as these may be related to the onset of retinal diseases. However, there has been no rigorous comparison of the performance of these ...
    • Performance Monitoring of a Mammalian Cell Based Bioprocess using Raman spectroscopy. 

      Ryder, Alan G.; Li, Boyan; Ray, Bryan H. (2013)
      Being able to predict the final product yield at all stages in long-running, industrial, mammalian cell culture processes is vital for both operational efficiency, process consistency, and the implementation of Quality by ...