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4篇 您的检索式:作者名="MARTIN PAVLAS"
    题名 作者 年代 出处 被引量
1Heat inte-grated heat pumping for biomass gasification processing显示文摘MARTIN PAVLAS PETR STEHLK JAROSLAV ORAL 2010AppliedThermal Engineering2010,30,:1
2Micellization of graft copolymers of alkyl methacrylates with α-methyl-ω-hydroxypoly(oxyethylene) methacrylates显示文摘Cestmír Ko(n)ák Martin Helmstedt Pavla Kopecková 1998J of Colloid and Interface Science1998,208,:1
3Anticlockwise metamorphic paths at ca.890–790 Ma from the NE Baidrag block,Mongolia,indicate back-arc compression at the Rodinia periphery显示文摘The processes leading to the assembly of the Rodinia supercontinent through Grenvillian collisional orogeny are relatively well known.In contrast,accretionary orogenic processes occurring at the supercontinent periphery following Rodinia assembly are poorly understood.To fill this gap,we have identified metamorphic rocks in the Mongolia collage of the Central Asian Orogenic Belt,where numerous data testify for Meso-to Neoproterozoic magmatic reworking.The tectono-metamorphic evolution of the periSiberian tract of the Central Asian Orogenic Belt is mainly characterized by the late Proterozoic–early Cambrian(Baikalian)cycle.However,we document here a Tonian age metamorphism at the northern part of the Precambrian Baidrag block,previously considered as a typical example of the Baikalian metamorphic belt.This study incorporates zircon and in-situ monazite geochronology linked to P-T modelling of Grt-Sil-Ky migmatite gneiss and Grt-St micaschist.Grt-Sil-Ky gneiss records initial burial to the sillimanite stability field at 720℃ and 6.0 kbar followed by further burial to the kyanite stability field at 750℃ and 9 kbar and decompression to 650℃ and 8 kbar.The Grt-St schist records initial burial to the staurolite stability field at 620℃ and 6 kbar,followed by further burial to 590℃ and 8.5 kbar.The monazite data yield a continuum of ^(207)Pb-corrected ^(238)U/^(206)Pb dates of ca.926–768 Ma in the Grt-Sil-Ky gneiss,and ca.937–754 Ma in the Grt-St schist.Based on monazite textural positon,internal zoning,and REE patterns,the time of prograde burial to 6.0 kbar under a thermal gradient of 27–32℃/km is estimated at ca.890–853 Ma.It is not clear whether such high-grade conditions prevailed until a phase of further burial under a geothermal gradient of 18–22℃/km dated at ca.835–815 Ma.The late monazite recrystallization at ca.790 Ma is related to decompression.Additionally,monazite with dates of ca.568–515 Ma occur as whole grains or as rims with sharp boundaries on Tonian monazite in Grt-St schist suggesting a minor Baikalian overprint.Metamorphic zircon rims with Th/U ratios of 0.01–0.06 in Grt-Sil-Ky gneiss with 877±7 Ma age,together with lower intercepts of detrital zircon discordia lines in both Grt-Sil-Ky gneiss and Grt-St schist further support the Tonian age of high-grade metamorphism.The anticlockwise P-T evolution is interpreted as a result of thickening of a supra-subduction extensional and hot edifice–probably of back-arc or arc type.This kind of prograde metamorphism has so far only been described on the northern part of the Tarim block and was interpreted to be a result of initiation of peri-Rodinian subduction of the Mirovoi Ocean.The geodynamic consequences of a unique discovery of Tonian metamorphism are discussed in terms of tectonic switch related to initiation of peri-Rodinian oceanic subduction during supercontinent assembly,followed by strong mechanical coupling potentially related to onset of Rodinia dispersal.PavlaŠtípská Vít Peresty Igor Soejono Karel Schulmann RCAndrew Kylander-Clark Carmen Aguilar Stephen Collett Martin Racek Jitka Míková Otgonbaatar Dorjsuren Nikol Novotná 2023Geoscience Frontiers2023,14,2:0
4Greenhouse gas emissions from thermal treatment o non-recyclable municipal waste显示文摘This paper analyses factors affecting the production of greenhouse gases from the treatment of residual municipal waste.The analysis is conducted so that the environmentally-friendly decision-making criteria may be later implemented into an optimisation task,which allocates waste treatment capacities.A simplified method of life cycle assessment is applied to describe environ- mental impact of the allocation.Global warming potential (GWP)is employed as a unit to quantify greenhouse gases (GHG)emissions.The objective is to identify the environmental burdens and credits measured by GWP for the three fundamental methods for treatment of residual waste unsuitable for material recovery.The three methods are waste-to-energy (WTE),landfilling and mechanical-biological treatment (MBT)with subsequent utilization of refuse-derived fuel.The composition of the waste itself and content of fossil-derived carbon and biogenic carbon are important parameters to identify amounts of GHG.In case of WTE,subsequent use of the energy,e.g.,in district heating systems in case of heat,is another important parameter to be considered.GWP function dependant on WTE capacity is introduced.The conclusion of this paper provides an assessment of the potential benefits of the results in optimisation tasks for the planning of overall strategy in waste management.Tomas Ferdan Martin Pavlas Vlastimlr Nevrly Radovan Sompllak Petr Stehllk 2018Frontiers of Chemical Science and Engineering2018,12,4:0
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