A fast hybrid algorithm for exoplanetary transit searches     

A. Collier Cameron  D. Pollacco  R. A. Street  T. A. Lister  R. G. West  D. M. Wilson  F. Pont  D. J. Christian  W. I. Clarkson  B. Enoch  A. Evans  A. Fitzsimmons  C. A. Haswell  C. Hellier  S. T. Hodgkin  K. Horne  J. Irwin  S. R. Kane  F. P. Keenan  A. J. Norton  N. R. Parley  J. Osborne  R. Ryans  I. Skillen  P. J. Wheatley 《Monthly notices of the Royal Astronomical Society》2006,373(2):799-810

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Dating deformation using crushed alkali feldspar: 40Ar/39Ar geochronology of shear zones in the Wyangala Batholith,NSW, Australia     

M. A. Forster  G. S. Lister  P. G. Lennox 《Australian Journal of Earth Sciences》2013,60(4):619-629

Diffusion parameters have been estimated for K-feldspar in and adjacent to mylonite shear zones in the Wyangala Batholith. The parameters obtained suggest that deformation during mylonitisation would have caused argon systematics to reset because diffusion distances were reduced by cataclasis, deformation and/or recrystallisation. However, the mineral lattice remained sufficiently retentive to allow subsequently produced radiogenic argon to be retained. ⁴⁰Ar/³⁹Ar geochronology is thus able to constrain operation of these biotite-grade ductile shear zones to the period from ca 380 Ma to ca 360 Ma, at the end of the Tabberabberan Orogeny.  相似文献   

Potential loading damage to industrial storage tanks due to volcanic ash fallout     

Maria Francesca Milazzo  Giuseppa Ancione  Anna Basco  David George Lister  Ernesto Salzano  Giuseppe Maschio 《Natural Hazards》2013,66(2):939-953

The phenomenon of volcanic fallout ash from Mt. Etna in Sicily (Italy) is well known and frequent in recent years, as in the period 2001–2004. As a consequence, significant problems for the population, road, rail and air traffic and production activities have occurred. The industrial areas of Catania and Augusta-Priolo, located in south eastern Sicily, might be involved during particular weather conditions. This paper aims at determining the potential scenarios of damage to industrial facilities caused by volcanic ash fallout. The work has been focused on the study of both fixed and floating roof storage tanks, containing flammable liquids, and examines extreme failures damage causing the greatest loss of containment for these facilities. To include scenarios arising from natural phenomena (Na-Tech events) in the standard risk assessment procedure, the estimation of the vulnerability of these facilities is necessary. The study has been applied to the area surrounding Mt. Etna, and the procedure can also be extended to other case studies.  相似文献   

High-Oil Soybean for More Efficient Energy Conversion to Soy-Based Biodiesel     

Robert L. Paris  Jeffery D. Ray  James R. Smith  Debbie L. Boykin 《Natural Resources Research》2009,18(4):259-266

Protein and oil are the most important components of soybean [Glycine max (L.) Merr.], and they have been shown to have an inverse relationship. As there is a growing demand for soybean oil-based diesel as an alternative fuel source, a better understanding of the protein–oil inverse relationship in conjunction with seed yield could be useful in determining the potential of soybean as a source of biodiesel. We retrospectively examined advanced soybean breeding lines from multiple breeding programs across the southern USA to determine associations between protein and oil and seed yield. The data analyzed were a subset of the Uniform Soybean Tests and consisted of 31 different soybean breeding lines and four checks grown at 10 locations in 2000, six locations in 2001, and eight locations in 2002. A progressive multiple regression analysis was used to develop a single equation describing seed yield over all entries, locations, and years as a function of five traits: oil content, protein content, maturity, lodging, and plant height. From this equation, the optimum plant type for maximum seed yield in the southern USA had either high oil (225 g kg⁻¹) and low protein (385 g kg⁻¹), or high protein (437 g kg⁻¹) and low oil (190 g kg⁻¹). Seed yield continues to be the dominant trait of selection in soybean breeding programs. This study demonstrates that high yield can be achieved with either high protein or high oil. Hence, there is potential for maintaining yield while improving soybean cultivars for oil production. Given the energy balance between fossil-derived and soy-derived diesel, if soy-based biodiesel is to be a significant option, an increased focus on developing high-oil/high-yield soybean needs to occur.  相似文献   

Mercury contamination in surface sediments and sediment cores of the Mersey Estuary, UK     

C.H. Vane  D.G. Jones  T.R. Lister 《Marine pollution bulletin》2009,58(6):940-1084

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VSOP Space VLBI observations of Pearson-Readhead survey sources     

S. J. Tingay  R. A. Preston  B. G. Piner  M. L. Lister  D. L. Jones  D. W. Murphy  T. J. Pearson  A. C. S. Readhead  H. Hirabayashi  H. Kobayashi  M. Inoue 《New Astronomy Reviews》1999,43(8-10)

The VSOP Space VLBI mission uses the HALCA spacecraft, launched from Japan in February 1997, in conjunction with ground radio observatories around the world to create a high resolution radio-wavelength imaging facility. We are using this unique facility to observe a sub-sample of Pearson-Readhead Survey sources at 4.8 GHz to determine core brightness temperatures and pc-scale jet properties. We will highlight one of the sources that has been observed using a combination of the HALCA spacecraft and the EVN, 1642+690, and describe the preliminary brightness temperature distribution for the sub-sample, based on all data analyzed to date.  相似文献   

A pre-Ipswichian cold stage mammalian fauna from the Balderton Sand and Gravel,Lincolnshire, England     

Adrian M. Lister  Allan Brandon 《第四纪科学杂志》1991,6(2):139-157

The Balderton Sand and Gravel has yielded one of very few mammalian faunas dated to the penultimate Cold Stage in Britain. The assemblage is dominated by mammoth and woolly rhinoceros, with subordinate horse, red deer, bison, straight-tusked elephant, musk ox, reindeer, wolf, lion, brown bear and cf. narrow-nosed rhinoceros. This fauna indicates cold stage conditions, probably including one or more interstadial episodes. The presence of straight-tusked elephant and cf. narrow-nosed rhinoceros supports its pre-Devensian age, and provides corroboration for the occurrence of these taxa in the British Wolstonian. An attempt is made to analyse the fossil collection by preservation type and adhering sediment: the occurrence of individual species appears to be largely uncorrelated with lithology. The Balderton assemblage corresponds well to other British mammal faunas assigned to a cold interval between the Hoxnian and Ipswichian Interglacials.  相似文献   

First results from the Australia Telescope Compact Array 18-GHz pilot survey     

Roberto Ricci  Elaine M. Sadler  Ronald D. Ekers  Lister Staveley–Smith  Warwick E. Wilson  Michael J. Kesteven  Ravi Subrahmanyan  Mark A. Walker  Carole A. Jackson  Gianfranco De Zotti 《Monthly notices of the Royal Astronomical Society》2004,354(1):305-320

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Differential thermal stresses in the Earth     

C. R. B. Lister 《Geophysical Journal International》1986,86(2):319-330

Summary. Rocks have a significant thermal expansion coefficient and a high modulus of elasticity. Small thermal changes can therefore generate very substantial stresses. A convenient idealized example is the mechanically free, cooling thermal boundary layer in a material that suddenly turns from plastic to rigid in cooling through a 'rigidus' temperature. This simplified case can be solved analytically for both a linear and an error function temperature profile. A compressed layer develops near the surface, with a logarithmic singularity of stress at the boundary. At a depth of 0.2 of the elastic thickness, the stress changes to tensile, and peaks at 15 per cent of the confined shrinkage stress in the middle of the rigid layer. The situation is similar to the stresses in one half of a piece of tempered glass. Like the tempered glass, both the cooling lithosphere and a plated boundary to a magma chamber are subject to breakage when cracks are induced in the tensile layer. Positive pore (magma) pressure is required to overcome confining pressure at depth in the lithosphere, but cracking could become catastrophic in the plated boundary to a near-surface magma chamber.  相似文献   

The tectonic significance of a porphyroblastic blueschist facies overprint during Alpine orogenesis: Sifnos, Aegean Sea, Greece     

Gordon S. Lister  Adamandia Raouzaios 《Journal of Structural Geology》1996,18(12):1417-1435

The MacArgon program^∗ has been used to model published apparent age spectra for white micas from the island of Sifnos, Cyclades, Greece. These micas formed during a period of porphyroblastic mineral growth (M₂) in the epidote-blueschist facies, at > ~ 460 °C and < ~ 14 kbar. M₂ marked the onset of a major period of deformation (D₃) during which kilometre-scale ductile shear zones formed and widespread recumbent folding took place. The modelling experiments suggest that flat apparent age spectra observed in the eclogite-blueschist domain (EBD) can only be obtained if the rocks cooled rapidly below ~ 350 °C after M₂ at ~ 42 Ma. Cooling rates must be > 50 °C/m.y., and since M₂ is followed by D₃ we infer that these are the cooling rates during D₃. Modelling experiments for micas from the greenschist domain (GSD) structurally underneath the EBD suggest that the GSD cooled rapidly, but at ~ 32 Ma. One tectonic model that might explain the rapidity of cooling rates inferred for the EBD model supposes that ambient temperatures were at ~ 500 °C when M₂ took place, but thereafter the high pressure rocks were thrust to the north and rapidly cooled as the result of their juxtaposition against cooler, shallower levels of the crust.  相似文献