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• Journal article
  Liu F, Wang W-X, 2015,

  Linking trace element variations with macronutrients and major cations in marine mussels <i>Mytilus edulis</i> and <i>Perna viridis</i>

  , ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY, Vol: 34, Pages: 2041-2050, ISSN: 0730-7268
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  • Citations: 27
• Journal article
  Wang S, Toumi R, Czaja A, Van Kan Aet al., 2015,

  An analytic model of tropical cyclone wind profiles

  , Quarterly Journal of the Royal Meteorological Society, Vol: 141, Pages: 3018-3029, ISSN: 1477-870X

  A physically based analytic model (λ model) is presented to describe the wind profile of tropical cyclones in terms of the pressure deficit and a single shape parameter (λ). To test the λ model, an idealized full-physics numerical model is employed to provide wind-profile samples and also to show the influence of environmental temperature and the properties of initial vortices on tropical cyclone size. It is found that the λ model provides an accurate fit of the azimuthal wind profile at the top of the boundary layer. In the simulations, tropical cyclone size is sensitive to sea-surface temperature, upper tropospheric temperature and initial vortex structure. The numerical model confirms the assumed Gaussian distribution with width λ of the moist entropy in the boundary layer. A linear relationship between model cyclone size and inline image is found, in agreement with the λ model. The λ model predicts a weak relationship between tropical cyclone size and intensity, as is observed. In addition, the λ model suggests that change in tropical cyclone size should be closely related to angular momentum transport near the boundary layer, as has been found in observations. The good agreement of the λ model with the numerical model shows that the λ model could be a reasonable alternative for characterizing the wind structure of tropical cyclones with only one scaling parameter.

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• Journal article
  Lefauve A, Muller C, Melet A, 2015,

  A three-dimensional map of tidal dissipation over abyssal hills

  , JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, Vol: 120, Pages: 4760-4777, ISSN: 2169-9275
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  • Citations: 26
• Journal article
  Bossay S, Bekki S, Marchand M, Poulain V, Toumi Ret al., 2015,

  Sensitivity of tropical stratospheric ozone to rotational UV variations estimated from UARS and Aura MLS observations during the declining phases of solar cycles 22 and 23

  , Journal of Atmospheric and Solar-Terrestrial Physics, Vol: 130-131, Pages: 96-111, ISSN: 1364-6826

  The correlation between tropical stratospheric ozone and UV radiation on solar rotational time scales is investigated using daily satellite ozone observations and reconstructed solar spectra. We consider two 3-year periods falling within the descending phases of two 11-year solar cycles 22 (1991-1994) and 23 (2004-2007). The UV rotational cycle is highly irregular and even disappears for half a year during cycle 23. For the 1991-1994 period, ozone and 205 nm UV flux are found to be correlated between about 10 and 1 hPa with a maximum of 0.29 at ~5 hPa; ozone sensitivity (percentage change in ozone for 1 percent change in UV) peaks at ~0.4. Correlation during cycle 23 is weaker with a peak ozone sensitivity of 0.2. The correlation is found to vary widely, not only with altitude, but also from one year to the next with a rotational signal in ozone appearing almost intermittent. Unexpectedly, the correlation is not found to bear any relation with the solar rotational forcing. For instance, solar rotational fluctuations are by far the strongest during 1991-1992 whereas the correlation peaks at the end of 1993, a rotationally quiescent period. When calculated over sliding intervals of 1-year, the sensitivity is found to vary very strongly within both 3-year periods; it is almost negligible over the entire vertical profile during some 1-year intervals or reaches close to 1 around 2-5 mb for other intervals. Other sources of variability, presumably of dynamical origin, operate on the rotational spectral range and determine to a large extent the estimated solar rotational signal. Even considering 3 years of observations (corresponding to about 40 solar cycles), the extraction of the rotational solar signal does not appear to be robust during declining phases of 11-year solar cycles. As observational studies cover at best three 11-year solar cycles, it must be challenging to produce a reliable estimation of the 11-year solar cycle signal in stratospheric ozone, especially in

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• Conference paper
  Oluleye OO, Jobson M, Smith R, 2015,

  Optimisation-based design of site waste heat recovery systems

  , ECOS 2015 - 28th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems
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• Journal article
  Rainbow PS, Liu F, Wang W-X, 2015,

  Metal accumulation and toxicity: The critical accumulated concentration of metabolically available zinc in an oyster model

  , AQUATIC TOXICOLOGY, Vol: 162, Pages: 102-108, ISSN: 0166-445X
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  • Citations: 33
• Journal article
  Newinger C, Toumi R, 2015,

  Potential impact of the colored Amazon and Orinoco plume on tropical cyclone intensity

  , Journal of Geophysical Research: Oceans, Vol: 120, Pages: 1296-1317, ISSN: 2169-9275
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• Journal article
  Hardwick SR, Toumi R, Pfeifer M, Turner EC, Nilus R, Ewers RMet al., 2015,

  The relationship between leaf area index and microclimate in tropical forest and oil palm plantation: Forest disturbance drives changes in microclimate

  , Agricultural and Forest Meteorology, Vol: 201, Pages: 187-195, ISSN: 0168-1923

  Land use change is a major threat to biodiversity. One mechanism by which land use change influences biodiversity and ecological processes is through changes in the local climate. Here, the relationships between leaf area index and five climate variables – air temperature, relative humidity, vapour pressure deficit, specific humidity and soil temperature – are investigated across a range of land use types in Borneo, including primary tropical forest, logged forest and oil palm plantation. Strong correlations with the leaf area index are found for the mean daily maximum air and soil temperatures, the mean daily maximum vapour pressure deficit and the mean daily minimum relative humidity. Air beneath canopies with high leaf area index is cooler and has higher relative humidity during the day. Forest microclimate is also found to be less variable for sites with higher leaf area indices. Primary forest is found to be up to 2.5 °C cooler than logged forest and up to 6.5 °C cooler than oil palm plantations. Our results indicate that leaf area index is a useful parameter for predicting the effects of vegetation upon microclimate, which could be used to make small scale climate predictions based on remotely sensed data.

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• Journal article
  Sparks N, Toumi R, 2015,

  Numerical Simulations of Daytime Temperature and Humidity Crossover Effects in London

  , BOUNDARY-LAYER METEOROLOGY, Vol: 154, Pages: 101-117, ISSN: 0006-8314
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  • Citations: 6
• Journal article
  Buck M, Engl C, Joly N, Jovanovic G, Jovanovic M, Lawton E, McDonald C, Schumacher J, Waite C, Zhang Net al., 2015,

  In vitro and in vivo methodologies for studying the Sigma 54-dependent transcription.

  , Methods Mol Biol, Vol: 1276, Pages: 53-79

  Here we describe approaches and methods to assaying in vitro the major variant bacterial sigma factor, Sigma 54 (σ(54)), in a purified system. We include the complete transcription system, binding interactions between σ54 and its activators, as well as the self-assembly and the critical ATPase activity of the cognate activators which serve to remodel the closed promoter complexes. We also present in vivo methodologies that are used to study the impact of physiological processes, metabolic states, global signalling networks, and cellular architecture on the control of σ(54)-dependent gene expression.

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• Journal article
  Nicholls JF, Toumi R, Stenchikov G, 2014,

  Effects of unsteady mountain-gap winds on eddies in the Red Sea

  , Atmospheric Science Letters, Vol: 16, Pages: 279-284, ISSN: 1530-261X
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• Conference paper
  Oluleye OO, Jobson M, Smith R, 2014,

  Improving a process site sustainability through waste heat recovery

  , Environmental Division 2014 - Core Programming Area at the 2014 AIChE Annual Meeting 2014, Pages 335-357
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• Conference paper
  Oluleye OO, Jobson M, Smith R, 2014,

  Optimal design and integration of a process site waste heat recovery system

  , 2014 AIChE Annual Meeting
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• Journal article
  Phibbs S, Toumi R, 2014,

  Modeled dependence of wind and waves on ocean temperature in tropical cyclones

  , GEOPHYSICAL RESEARCH LETTERS, Vol: 41, Pages: 7383-7390, ISSN: 0094-8276
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  • Citations: 9
• Journal article
  Schumacher J, 2014,

  Differential secretome analysis of Pseudomonas syringae pv tomato using gel-free MS proteomics

  , Frontiers in Plant Science, Vol: 5
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• Journal article
  Radu R, Toumi R, Phau J, 2014,

  Influence of atmospheric and sea surface temperature on the size of hurricane <i>Catarina</i>

  , QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY, Vol: 140, Pages: 1778-1784, ISSN: 0035-9009
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  • Citations: 18
• Journal article
  Engl C, Waite CJ, McKenna JF, Bennett MH, Hamann T, Buck Met al., 2014,

  Chp8, a Diguanylate Cyclase from <i>Pseudomonas syringae</i> pv. Tomato DC3000, Suppresses the Pathogen-Associated Molecular Pattern Flagellin, Increases Extracellular Polysaccharides, and Promotes Plant Immune Evasion

  , MBIO, Vol: 5, ISSN: 2150-7511
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  • Citations: 35
• Journal article
  Lawton E, Jovanovic M, Joly N, Waite C, Zhang N, Wang B, Burrows P, Buck Met al., 2014,

  Determination of the Self-Association Residues within a Homomeric and a Heteromeric AAA plus Enhancer Binding Protein

  , JOURNAL OF MOLECULAR BIOLOGY, Vol: 426, Pages: 1692-1710, ISSN: 0022-2836
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  • Citations: 5
• Journal article
  Nicholls JF, Toumi R, 2014,

  On the lake effects of the Caspian Sea

  , QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY, Vol: 140, Pages: 1399-1408, ISSN: 0035-9009
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  • Citations: 45
• Journal article
  White RH, Toumi R, 2014,

  River flow and ocean temperatures: The Congo River

  , JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, Vol: 119, Pages: 2501-2517, ISSN: 2169-9275
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  • Citations: 26
• Conference paper
  Oluleye OO, Jobson M, Smith R, 2014,

  A hierarchical approach for evaluation of waste heat utilization opportunities

  , 17th Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction, ISSN: 1974-9791
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• Conference paper
  Oluleye OO, Jobson M, Smith R, Perry SJet al., 2014,

  Evaluating the potential of a process site for waste heat recovery

  , 17th Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction, ISSN: 1974-9791
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• Journal article
  Liu F, Wang W-X, 2014,

  Differential influences of Cu and Zn chronic exposure on Cd and Hg bioaccumulation in an estuarine oyster

  , AQUATIC TOXICOLOGY, Vol: 148, Pages: 204-210, ISSN: 0166-445X
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  • Citations: 24
• Journal article
  Lefauve A, Saintillan D, 2014,

  Globally aligned states and hydrodynamic traffic jams in confined suspensions of active asymmetric particles

  , PHYSICAL REVIEW E, Vol: 89, ISSN: 2470-0045
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  • Citations: 27
• Conference paper
  Oluleye G, Jobson M, Smith R, 2014,

  Improving a process site sustainability through waste heat recovery

  , Pages: 5-27
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• Conference paper
  Oluleye G, Jobson M, Smith R, 2014,

  Conceptual design of waste heat recovery schemes

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• Conference paper
  Oluleye G, Jobson M, Smith R, 2014,

  Optimal design and integration of a process site waste heat recovery system

  , Pages: 128-150

  • Methodology developed to identify the potential of industrial waste heat and design a site waste heat recovery system • System design evaluated based on efficiency, emissions and economics • More benefits from integrating the waste heat recovery system with the site cogeneration system • Benefits depend on the demand for recovered energy.

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• Conference paper
  Oluleye G, Jobson M, Smith R, 2014,

  Improving a process site sustainability through waste heat recovery

  , Pages: 240-262
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• Journal article
  Nissan H, Toumi R, 2013,

  On the impact of aerosols on soil erosion

  , GEOPHYSICAL RESEARCH LETTERS, Vol: 40, Pages: 5994-5998, ISSN: 0094-8276
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  • Citations: 3
• Journal article
  Schuller P, Walling DE, Iroumé A, Quilodrán C, Castillo A, Navas Aet al., 2013,

  Using 137Cs and 210Pbex and other sediment source fingerprints to document suspended sediment sources in small forested catchments in south-central Chile

  , Journal of Environmental Radioactivity, Vol: 124, Pages: 147-159, ISSN: 0265-931X
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