標題: Titlebook: New Trends in Coal Science; Yuda Yürüm Book 1988 Kluwer Academic Publishers 1988 Photochemistry.catalysis.chemistry.combustion.extraction [打印本頁] 作者: Clique 時間: 2025-3-21 16:23
書目名稱New Trends in Coal Science影響因子(影響力)
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書目名稱New Trends in Coal Science讀者反饋
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作者: 免費 時間: 2025-3-21 22:31
Chromatographic Techniques in Coal Sciencesolution analytical separations of low MM compounds are readily achieved by capillary gas chromatography; high performance liquid chromatography, especially on microcolumns, and supercritical fluid chromatography are both applicable to higher MM compounds.作者: Physiatrist 時間: 2025-3-22 02:15 作者: 戰(zhàn)役 時間: 2025-3-22 06:25 作者: ALLEY 時間: 2025-3-22 12:08 作者: Pedagogy 時間: 2025-3-22 13:09 作者: 稀釋前 時間: 2025-3-22 20:30
Solid State 13C NMR in Coal Research: Selected Techniques and Applicationty of .C NMR in coal research remains unresolved. Selected applications of solid-state .C NMR for the study of pyrolysis and hydroliquefaction of coals are presented. Results of these studies indicate that solid-state .C NMR can provide valuable information about aromaticity changes that occur during coal processing.作者: 易于出錯 時間: 2025-3-22 22:09 作者: 龍蝦 時間: 2025-3-23 03:24 作者: 不可比擬 時間: 2025-3-23 09:30
Nato Science Series C:http://image.papertrans.cn/n/image/665901.jpg作者: Hypopnea 時間: 2025-3-23 11:01 作者: 冥界三河 時間: 2025-3-23 16:04 作者: Anthropoid 時間: 2025-3-23 21:15 作者: Laconic 時間: 2025-3-24 01:44 作者: ANA 時間: 2025-3-24 03:05 作者: Thyroxine 時間: 2025-3-24 09:29
The Oxygen Functional Groups in Bituminous CoalThe recent contributions from our laboratory and from other laboratories concerning the distribution of oxygen functional groups in Illinois No. 6 bituminous coal and related materials are discussed.作者: PAC 時間: 2025-3-24 13:07 作者: 效果 時間: 2025-3-24 18:36 作者: 演繹 時間: 2025-3-24 22:03
978-94-010-7869-6Kluwer Academic Publishers 1988作者: Deject 時間: 2025-3-25 03:06
New Trends in Coal Science978-94-009-3045-2Series ISSN 1389-2185 作者: 漂亮 時間: 2025-3-25 06:09
Aral Olcaybetroffenen Personen- und BerufsgruppenMit dem Universit?tsstudiengesetz von 1997 sind die Weichen für eine umfassende und tiefgreifende Reform der Studien an den ?sterreichischen Universit?ten gestellt worden. Das Gesetz begnügt sich mit der Vorgabe von Rahmenbedingungen und überl??t die n?here Reg作者: acolyte 時間: 2025-3-25 10:21
Aral Olcay?ten gestellt worden. Das Gesetz begnügt sich mit der Vorgabe von Rahmenbedingungen und überl??t die n?here Regelung des Studienrechts den Studienpl?nen, die auf der Ebene der Universit?ten und Fakult?ten autonom zu beschlie?en sind. Künftig k?nnen der Aufbau und Inhalt desselben Studiums von Univer作者: 清澈 時間: 2025-3-25 14:32 作者: Detain 時間: 2025-3-25 18:44
The Origin of Coalsor marsh. Coal formation has been a rare event in geological time, the principal eras in Europe and North America having been about 300 m. and 50–100m. years B.P. Major changes in plant anatomy took place between these two periods..The results of a recent multi-disciplinary study of profiles of five作者: Factual 時間: 2025-3-25 23:52
The Nature and Origins of Coal Maceralsinite maceral groups are discussed and compared to the corresponding liptinite macerals. The importance of separating macerals is considered, and some recent results using the density gradient centrifugation method of maceral separation is briefly reviewed. It is demonstrated that vitrinites are com作者: 安裝 時間: 2025-3-26 03:22
Solid State 13C NMR in Coal Research: Selected Techniques and Applicationgic-angle spinning with high-power decoupling, dipolar dephasing, sideband suppression at high magnetic fields, dynamic nuclear polarization and combined rotation and multiple pulse spectroscopy. The quantitative reliability of .C NMR aromaticity measurements is also discussed. Results from recent s作者: 千篇一律 時間: 2025-3-26 05:52
A New Approach for Quantitative 13C NMR Spectroscopy of Coalopy of coals and the use of samarium(II) iodide as a reagent for the realization of more quantitative spectroscopic results through the selective removal of organic free radicals from coal are discussed.作者: corpuscle 時間: 2025-3-26 10:20 作者: indigenous 時間: 2025-3-26 15:09
Estimating Thermophysical Properties of Coal Liquids Using NMR Spectraters, average molecular structures and functional group concentrations can all be calculated based on NMR data. The NMR data can find much broader application, however, than merely characterizing structure. This paper reviews some of the basic methods for applying NMR to the problem of property esti作者: Vasodilation 時間: 2025-3-26 18:18 作者: DALLY 時間: 2025-3-26 23:43
Introduction to Coal Photochemistrylecules and even small particles. Consequently, despite their aromaticity, such materials do not give ultraviolet absorption spectra, rather they scatter light. Information about the chemistry of the aromatic nuclei can be obtained, however, from the fluorescence of extracts, notably from their exci作者: EWE 時間: 2025-3-27 04:34
Coal Characterization by Means of Curie-Point Pyrolysis Techniquesix coal samples, representative for the entire range of coal ranks, were selected from the set of 40 coals to study the pyrolysis product mixtures as a function of the coal rank in more detail by Curie-point pyrolysis gas chromatographic techniques (PyGC and PyGCMS). PyMS revealed that the number an作者: 反抗者 時間: 2025-3-27 05:36
Chromatographic Techniques in Coal Sciencer functionality; size exclusion chromatography separates on the basis of molecular size and allows molecular mass distributions to be deduced. High resolution analytical separations of low MM compounds are readily achieved by capillary gas chromatography; high performance liquid chromatography, espe作者: Addictive 時間: 2025-3-27 10:14
Slow and Rapid Pyrolysis of Coals is the most important aspect of coal behaviour because it occurs in all major coal conversion processes. Upon pyrolysis coal is divided into a hydrogen-rich volatile fraction, consisting of gases, vapors, and tar-components, and a carbon-rich solid residue. Moreover, for certain coals decompositio作者: BARB 時間: 2025-3-27 16:21 作者: SUGAR 時間: 2025-3-27 18:18 作者: 極微小 時間: 2025-3-28 01:49
Coal Desulfurization. The Protodesulfurization of Naphthalene Thiols and Sulfidescleophilic replacement of sulfur by oxygen in aryl thiols and sulfides led to the discovery of an acid-catalyzed reductive desulfurization reaction that proceeds readily under surprisingly mild conditions. Specifically, the treatment of 1- and 2-naphthalenethiol, 1- and 2-naphthyl alkyl sulfides, an作者: Atmosphere 時間: 2025-3-28 04:57 作者: Obscure 時間: 2025-3-28 09:33 作者: 敲竹杠 時間: 2025-3-28 12:44
1389-2185 is presented in the first part of the book. Finally the reactivity of coals at different conditions both in laboratory and industry is discussed. We hope that 978-94-010-7869-6978-94-009-3045-2Series ISSN 1389-2185 作者: 自制 時間: 2025-3-28 18:35
The Origin of Coalsulose in samples in which it could not confidently be identified by C 13 nmr or FTIR. A large number of phenols related to lignin were found. It was concluded that a wide variety of oxidized lignin molecules form the principal input to coalification, but with some contribution from polysaccharide de作者: 平 時間: 2025-3-28 19:12
Introduction to Coal Photochemistryaromatic molecules but akin to the fluorescence lifetimes of aromatic polymers. Thus the fluorescence behaviour of coal extracts and suspensions appear to be dominated by the ready transfer — both radiative and non radiative — of energy from one aromatic structure to the next. Energy is transferred 作者: 散步 時間: 2025-3-29 00:46 作者: 賠償 時間: 2025-3-29 05:43
Slow and Rapid Pyrolysis of Coale experimental techniques used to study the chemical an the physical changes which occur upon slow and rapid pyrolysis of coal are reviewed. Relevant experimental results are described. The influence of experimental conditions on the yield and composition of the volatile fraction, liberated upon coa作者: Dorsal-Kyphosis 時間: 2025-3-29 07:54
Coal Liquefaction Kineticstion. For example, dissolution of coal may result in nearly complete “l(fā)iquefaction” up to 95% of the maf coal to products soluble in tetrahydrofuran, benzene or pyridine. However, the average molecular weight of this material is typically more than 1000. Catalytic hydrogenation, batch or continuous,作者: hair-bulb 時間: 2025-3-29 11:43
Book 1988tion of many specific recent results on structure and characterization of coal and its products the potential of new instrumental techniques is presented in the first part of the book. Finally the reactivity of coals at different conditions both in laboratory and industry is discussed. We hope that 作者: 隱語 時間: 2025-3-29 15:55 作者: 持續(xù) 時間: 2025-3-29 20:10
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