منابع مشابه
Laser-induced Fluorescence Microscopy of Coal Macerals and Dispersed Organic Material
Fluorescence microscopy has been a use fu l a n a l y t i c a l t o o l f o r cha rac t e r i z ing o r g a n i c m a t e r i a l i n v a r i o u s c o a l s and r o c k s (1-9). T e i c h m u l l e r and Wolf (3 ,7 ) discovered new f l u o r e s c i n g c o a l macerals , which a l s o were found by Spackman (6 ) i n U.S. coa l s . Ottenjahn e t a l . (9) r e l a t e d t h e f luo rescence p r...
متن کاملBreaking the limits of structural and mechanical imaging of the heterogeneous structure of coal macerals.
The correlation between local mechanical (elasto-plastic) and structural (composition) properties of coal presents significant fundamental and practical interest for coal processing and for the development of rheological models of coal to coke transformations. Here, we explore the relationship between the local structural, chemical composition, and mechanical properties of coal using a combinat...
متن کاملLow-temperature investigation of paramagnetic centres in tetrahedral amorphous carbon deposited by S-bend FCVA
The electron-spin-resonance (ESR) features of tetrahedral amorphous carbon (ta-C) samples deposited by S-bend filtered cathodic vacuum arc (FCVA) are investigated in a wide temperature range (4.3–295 K) before and after postdeposition annealing at 500 C. Special attention is given to the temperature dependence of the linewidths. While the sp content does not change with annealing, the temperatu...
متن کاملPseudovitrinite: Possible Implications for Gas Saturation in Coals and Surrounding Rocks
Coal Petrography is for many a black science using terms that are for some not only incomprehensible but also in flux. For utilization purposes, the organic component of coal is generally broken down into reactive and non-reactive macerals, often with little further differentiation of the macerals. The main incentive to differentiate further is the recognition that the degree of reactivity in v...
متن کاملIntramitochondrial positions of ubiquinone and iron-sulphur centres determined by dipolar interactions with paramagnetic ions.
E.p.r. (electron-paramagnetic-resonance) spectra of ubisemiquinone (QH) organic radicals and all of the known iron-sulphur centres were studied in normal and 'nickle-plated' pigeon heart mitochondria, submitochondrial particles and submitochondrial particles from which succinate dehydrogenase had been removed. Incubation of pigeon heart mitochondria, submitochondrial particles or succinate dehy...
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ژورنال
عنوان ژورنال: Acta Physica Polonica A
سال: 2010
ISSN: 0587-4246,1898-794X
DOI: 10.12693/aphyspola.118.507