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187篇 您的检索式:作者名="Schobert"
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1富含树皮体和半丝质体煤的液化反应性和^(13)C-核磁共振分析的研究显示文摘通过对富含树皮体的煤和半丝质体的煤进行液化研究和结构分析,探讨其液化产品的产率与结构参数之间的关系。富含树皮体的煤的氢含量和挥发分含量均高,H/C原子比也很高。13C-核磁共振分析表明,所有用煤都以芳香族碳为主。WEST样品的芳碳率最高,LP、CG和DHB样品中CH2基团碳含量高于CH3基团碳含量,且CH2基团碳含量高于其他三个样品。而P858样品中CH3基团碳含量高于CH2基团碳含量。液化结果表明,LP、CG和DHB有高的液化转化率和油收率。煤液化的油收率和煤结构中的CH2基团碳含量以及转化率和煤的芳碳率之间都存在明显的相关关系。因此,13C-核磁共振技术可以用来预测煤液化产品的收率。王绍清 唐跃刚 Harold H SCHOBERT 郭琴 王凤娟 2010燃料化学学报2010,38,2:8
2Mastoid obliteration and reconstruction techniques:A review of the literature显示文摘Objective To review the published literature related to the different obliteration and reconstruction techniques in the management of the canal wall down mastoidectomy.Methods A PubMed(Medline)and LILACS databases as well as crossed references search was performed with the following Mesh terms:“cholesteatoma”,“cholesteatoma-middle ear”,“otitis media”,“otitis media,suppurative”,“mastoiditis”,“mastoidectomy”,“canal wall down mastoidectomy”,“radical mastoidectomy”,“mastoid obliteration”and crossed references.Inclusion criteria were adult patients subject to mastoid cavity obliteration and posterior canal wall reconstruction.The technique and materials used,anatomic and functional results,complications,recurrence rates,and changes in quality of life,were analyzed.A total of 94 articles were screened,38 were included for full-text detailed review.Results Twenty-one articles fulfilled the inclusion criteria.Techniques and materials used for canal wall reconstruction,tympanoplasty,and ossiculoplasty were varied and included autologous,biosynthetic,or both.Auditory results were reported in 16 studies and were inconsistent.Three studies reported improvement in the quality of life using the GBI scale.Follow-up time ranged from 1 to 83 months.Eleven articles used imaging studies to evaluate postoperative disease recurrence.The highest recurrence rate reported for cholesteatoma after obliteration was 19%.The most frequently reported complications were retraction pockets and transient otorrhea.Conclusion Plenty of techniques combining grafts and other materials have been used to overcome mastoidectomy cavity problems.So far,it is still not possible to standardize an ideal procedure.The available level of evidence for this topic is low and limited.Michelle Lupa Mendlovic Daniella Alejandra Monroy Llaguno Ivan Hermann Schobert Capetillo Juan Carlos Cisneros Lesser 2021Journal of Otology2021,16,3:5
3Environmental scanning electron microscopy of activated carbon production from anthracite by one-step pyrolysis-activation显示文摘Gergova K Eser S Schobert H H 1995Fuel1995,74,7:1
4Comparison of Temperature Conditions in Direct Liquefaction of Selected Low-rank Coals显示文摘Huang Lili Schobert H H 2005Energy & Fuels2005,19,1:1
5Enhancing low-severity catalytic liquefaction of low-rank coal by adding water显示文摘SONG C S SAINI A K SCHOBERT H H 1993Fuel1993,206,:1
6FTIR and 13C NMR Investigation of Coal Component of Late Permian Coals from Southern China显示文摘Wang Shaoqing Tang Yuegang Schobert H H 2011Energy and Fuels2011,25,12:1
7Viscous sintering of coal ashes 1 relationships of sinter point and sinter strength to particle size and composition显示文摘JUNG B SCHOBERT H H 1991Energy Fuels1991,5,4:1
8Steroid Conjugates of Dichloro (6-aminomethylnicotinate) platinum (II) : Effects on DNA, sex hormone binding globulin,the estrogen receptor,and various breast cancer cell lines显示文摘Schobert R Bemhardt G Biersack B 2007Chem Med Chem2007,2,3:1
9Amino acid uptake by Ricinus com- munis roots characterization and physiological significance 显示文摘Schobert C Komor E 1987Plant Cell Environment1987,10,:1
10Is there an osmotic regulatory mechanism in algae and higher plants显示文摘Schobert B 1997Journal of Theory Biology1997,68,:1
11The SSX-2 geae, which is involved in the t(X; 18) translocation of syno- vial sarcomas, codes for the human tumor antigen HOM-MEL-40显示文摘Tureci O Sahin U Schobert I 1996Cancer Res1996,56,20:1
12Functionally diversepurinergic P2Y-receptors mediate prostanoid synthesis incultured rat astrocytes : the role of ATP-induced phos-phatidyl-inositol breakdown显示文摘Seregi A Doll S Schobert A 1992Eicosanoids1992,5,:1
13Is there an osmotic regulatory mechanism in algae and higher plants显示文摘Schobert B 1997Journal of Theory Biology1997,68,:1
14Chemicals and materials from coal in the 21st centary显示文摘Schobert H H Song C 2002Fuel2002,81,1:1
15The Petrochemistry of Coal Ash Slags Part 3 Behavior of the Rosebud Slaglimestone System显示文摘Schobert H H Carol W 1981Fuel Processing Technology1981,5,12:1
16Chemicals and materials from coal in the 21st cenrury显示文摘Schobert H H Song C 2002Fuel2002,81,1:1
17Regulation and glucocorticoid-independent induction of lipocortin I in cultured astrocytes显示文摘Gebicke-Haerter PJ Schobert A Dieter P 0,,01:1
18Effect of the reaction temperature and fuel treatment on the deposit formation of jet fuels显示文摘Omer G Rudnick L R Schobert H H 2008Energy and Fuels2008,22,1:1
19Opportunities for developing specialty chemicals and advanced materials from coals 显示文摘Song C Schobert H H 1993Fuel Processing Technology1993,34,2:1
20Microwave-accelerated Claisen rearrangements of allyl tetronates and tetramates显示文摘Schobert R Gordon GJ Mullen G 0,,06:1
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