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| 1 | Influence of Fe Addition on Products of Self-Propagating High-Temperature Synthesis Reaction in 3Ti-Si-2C System显示文摘Influence of Fe addition on products of self-propagating high-temperature synthesis (SHS) reaction in 3Ti-Si-2C system was investigated in the present study. Without Fe addition, Ti5Si3 and TiC are the dominant phases along with a small amount of Ti3SiC2 phase and unreacted C left in the final products. As Fe content ranges from 10% to 30%, the products consist of TiC, Ti5Si3, Fe2Ti and unreacted C, but no trace of Ti3SiC2 phase is detected. Furthermore, the amounts of both Fe2Ti and C phases increase with Fe content increasing. Addition of Fe has a great effect on the reaction route and significantly restrains the formation of Ti3SiC2 during the combustion synthesis process, and therefore, the SHS is not an effective fabrication technique to synthesize the ternary Ti3SiC2 ceramic in either 3Ti-Si-2C or Fe-3Ti-Si-2C system. Besides, without Fe addition, Ti5Si3 presents as the coarse irregular appearance with an obviously sintered morphology. In contrast, the shape of Ti5Si3 exhibits more and more spherical (cobblestone-like) and the surface becomes increasingly smooth, because the amount of liquids formed during the SHS reaction increases with the increase of Fe content. On the other hand, with Fe content increasing from 0 to 30 wt.%, the particulate size of TiC decreases from more than 5 μm to 1 μm or less, mainly due to the fact that the combustion temperature decreases with the increase of Fe content in the preforms. | Guan Q L Wang H Y Li S L Si W P Jiang Q C | 2009 | 稀有金属材料与工程2009,38,A03: | 2 |
| 2 | 氨氯地平和左旋氨氯地平对高血压患者血管内皮功能的影响显示文摘已证明氨氯地平可改善高血压患者的血管内皮功能,但左旋氨氯地平是否具有类似作用仍存在争议。该研究比较氨氯地平和左旋氨氯地平对高血压患者血管内皮功能的影响,应用体外细胞培养研究其相关作用机制。方法:该研究为一项随机、交叉试验。选取原发性高血压患者24例服用氨氯地平和左旋氨氯地平各6周, | He Y Si D Yang C Ni L Li B Ding M Yang P 罗冬梅 叶鹏 | 2014 | 中华高血压杂志2014,22,4: | 2 |
| 3 | The identification of eosinophilic gastroenteritis in prednisone-dependent eosinophilie bronchitis and asthma显示文摘 | Nair P Ochkur SI Protheroe C | 2011 | Allergy Asthma Clin Immunol2011,7,: | 1 |
| 4 | gCap39, a calcium ion- and polyphosphoinositide-regulated actin capping protein 显示文摘 | YU F X JOHNSTON P A SI]DHOF T C | 1990 | Science1990,250,4986: | 1 |
| 5 | Effects of ex- cess methionine from meeting needs for total sulfur amino acids on utilization of diets low in crude pro- tein by broiler chicks 显示文摘 | Si J Fritts C A Waidroup P W | 2004 | Journal of Apply Poultry Research2004,,13: | 1 |
| 6 | Reliability, feasibility and safety of minihysteroscopy with a vaginoscopic approach : experience with 6000 cases显示文摘 | Cicinelli E Pari si C Galantino P | 2003 | Fertil Steril2003,80,1: | 1 |
| 7 | Magnesium deficiency results in damage of nitrogen and carbon cross-talk of maize and improvement by cerium addition显示文摘 | Zhao H Q Zhou Q P Zhou M Li C X Gong X L Liu C Qu C X Wang L Si W H Hong F S | 2012 | Biological Trace Element Research2012,148,1: | 1 |
| 8 | A simple stream cipher with proven properties 显示文摘 | Si W P Ding C S | 2012 | Cryptography and Communications2012,4,2: | 1 |
| 9 | Genetic Divergence in Tetragonisca Angustula Latreille, 1811 (Hymenoptera, Meliponinae, Trigonini) Based on RAPD Markers 显示文摘 | OLIVEIRA R C NUNES F M F CAMPOS A P Si | 2004 | Genetics and Molecular Biology2004,27,: | 1 |
| 10 | A newly uodated and annotated checklist of Chinese mosses显示文摘 | Redfearn P L Tan JR B C Si He | 1996 | J Hattori Bot Lab1996,79,: | 1 |
| 11 | Four-week parenteral nutrition using a third generation lipid emulsion(SMOFlipid)-αdouble-blind,randomised,multicentre study in adults显示文摘 | Klek SI Chambrier C Singer P | 2013 | Clin Nutr2013,32,2: | 1 |
| 12 | Study on the activity and stability of urease immobilized onto nanoporous alumina membranes显示文摘 | Yang Z P Si S H Zhang C J | 2008 | Micropor Mesopor Mat2008,111,13: | 1 |
| 13 | Antioxidant de- fense systems, the role of earitenoid, toeopherol and thiols显示文摘 | Di Mascio P Murphy M C Sies H | 1991 | American Journal of Clinic Nutrition (Sup pl)1991,153,: | 1 |
| 14 | Numerical analysis for small punch creep tests by finiteelement method显示文摘 | ZHAI P C HASHIDA T KOMAZAKI SI | 2005 | Journal of Testing and Evaluation2005,33,4: | 1 |
| 15 | A newly updated and annotated checklist of Chinese Mosses 显示文摘 | REDFEARN P L JR TAN B C SI H | 1996 | J Hattori Bot Lab1996,79,: | 1 |
| 16 | Remote sensing of cirrus optical and microphysical properties from ground-based in- frared radiometric measurements-Part I: A new retrieval method based on microwindow spectral signature 显示文摘 | YANG P SI C T WEI H L | | IEEE Geoscience and Remote Sensing kettem0,2,2: | 1 |
| 17 | Synthesis of ZnO nanowhis kers by a simple method显示文摘 | Si P C Bian X F Li Hv | 2003 | Materials Letters2003,57,2425: | 1 |
| 18 | Study on the activity and stability of urease immobilized onto nanoporous alumina membranes显示文摘 | Yang Z P Si S H Zhang C J | 2008 | Microporous and Mesoporous Materials2008,111,13: | 1 |
| 19 | Prognostic valueof combination of Cyfra 21-1,CEA and NSE in patients with ad-vanced non-small cell lung cancer显示文摘 | BARLSI F GIMENEZ C TORRE J P | 2004 | Respir Med2004,98,4: | 1 |
| 20 | Synthesis ofZnO nanowhiskers by a simple method显示文摘 | Si P C Bian X F Li H | 2003 | Materials Letters2003,57,2425: | 1 |