爱沙尼亚学术期刊
期刊
会议
图书
作者:TAYEL EL-HASAN
来源:[J].Oil Shale(IF 0.636), 2018, Vol.35 (1), pp.70-83Estonian Academy Publishers
摘要:This study aimed to investigate the changes in oil shale (OS) ash as treated by the aerobic combustion process (ACP) and anaerobic pyrolysis process (APP). ACP ashes had all major oxides, and the trace elements con­tent increased with burning temperature increasing up to 100...
作者:MAIT SEPP , TAAVI PAE , ERKI TAMMIKSAAR
来源:[J].Oil Shale(IF 0.636), 2018, Vol.35 (1), pp.84-95Estonian Academy Publishers
摘要:The purpose of this paper is to provide a historical overview of what was known about oil shale in Estonia in the 19th century and reveal some background political and economic processes in this country, Russia and the world as a whole that framed oil shale studies in those ...
作者:NAFETH ABDEL RAHMAN ABDEL HADI , MONTHER ABDELHADI
来源:[J].Oil Shale(IF 0.636), 2018, Vol.35 (1), pp.56-69Estonian Academy Publishers
摘要:This study aimed to investigate the possible utilization of different waste materials such as oil shale ash mixed with marble and granite sludge, to produce low-cost compressed strong lightweight masonry bricks and alike. Various mixtures of the three wastes were prepared wi...
作者:SERGEI SABANOV
来源:[J].Oil Shale(IF 0.636), 2018, Vol.35 (1), pp.26-38Estonian Academy Publishers
摘要:The purpose of this study was to confirm the existence of acoustic emission (AE) Kaiser effect (KE) in Estonian oil shale (OS), and compare the respective data obtained about working mine pillars. The KE of acoustic emission, a phenomenon with a potential for in-situ stress estim...
作者:QINGTAO MENG , ZHAOJUN LIU , PINGCHANG SUN ...
来源:[J].Oil Shale(IF 0.636), 2018, Vol.35 (1), pp.1-25Estonian Academy Publishers
摘要:Two oil shale sequences in the Middle Jurassic Shimengou Forma­tion in the Yuqia area, northern Qaidam Basin in Northwest China were evaluated based on geochemical and proximate analyses. The characteristics and accumulation conditions of oil shale in the Lower Coal-bearing ...
作者:SHA WANG , LIZHI SONG , XIUMIN JIANG
来源:[J].Oil Shale(IF 0.636), 2018, Vol.35 (1), pp.39-55Estonian Academy Publishers
摘要:The pyrolysis of Dachengzi oil shale (OS), Huadian City, China, was carried out in a stainless-steel cylindrical retort at 520 °C both in the absence and presence of catalyst under argon atmosphere to evaluate the catalytic effects of Fe2O3 and CaCO3 additives on the product...
作者:Darya V. Pinakhina , Tiiu Märss
来源:[J].Estonian Journal of Earth Sciences(IF 1.067), 2018, Vol.67 (1), pp.96-111Estonian Academy Publishers
摘要:The taxonomic composition of the acanthodian assemblage of the Karksi outcrop, Estonia, is discussed. Two new species, Rhadinacanthus deltosquamosus n. sp. (Diplacanthiformes, Diplacanthidae) and Ginkgolepis tenericostatus n. sp. (Acanthodiformes, Cheiracanthidae), are descr...
作者:Liisa Luhaste , Kaido Tämm , Lauri Sikk ...
来源:[J].Proceedings of the Estonian Academy of Sciences(IF 0.312), 2018, Vol.67 (1), pp.106-113Estonian Academy Publishers
摘要:We compared different computational methods (quantum chemical and DFT) for calculations of binding energies of 8- and 9-coordinated lanthanoid–aqua complexes. We used nine computational methods and compared the results with those obtained by the CCSD(T) method. All the nine ...
作者:Kai Piirsoo , Alo Laas , Pille Meinson ...
来源:[J].Proceedings of the Estonian Academy of Sciences(IF 0.312), 2018, Vol.67 (1), pp.93-105Estonian Academy Publishers
摘要:Different sources of particulate organic matter (POM) as well as its composition affect the biological food web and hence the self-purification potential and water quality of rivers. We studied the effect of a large shallow lake on the POM pool of the water passing through i...
作者:Heiko Herrmann , Miriam Beddig
来源:[J].Proceedings of the Estonian Academy of Sciences(IF 0.312), 2018, Vol.67 (1), pp.73-92Estonian Academy Publishers
摘要:This paper presents a didactical introduction to a tensor series expansion of a spherical function for the use in constitutive theory of materials containing orientable particles. In several application areas a function of two angles, e.g. an orientation (density) distributi...

我们正在为您处理中,这可能需要一些时间,请稍等。

资源合作:cnki.scholar@cnki.net, +86-10-82896619   意见反馈:scholar@cnki.net

×