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| 1 | Computational Studies of Flow through Cross Flow Fans-Effect of Blade Geometry显示文摘This present paper describes three dimensional computational analysis of complex internal flow in a cross flow fan. A commercial computational fluid dynamics (CFD) software code CFX was used for the computation. RNG k-ε two equation turbulence model was used to simulate the model with unstructured mesh. Sliding mesh interface was used at the interface between the rotating and stationary domains to capture the unsteady interactions. An accurate assessment of the present investigation is made by comparing various parameters with the available experimental data. Three impeller geometries with different blade angles and radius ratio are used in the present study. Maximum energy transfer through the impeller takes place in the region where the flow follows the blade curvature. Radial velocity is not uniform through blade channels. Some blades work in turbine mode at very low flow coefficients. Static pressure is always negative in and around the impeller region. | M . GOVARDHAN D. LAKSHMANA SAMPAT | 2005 | Journal of Thermal Science2005，14，3： | 17 |
| 2 | PREPARATION OF YAG ULT RA-FINE POWDER BY CO- PRECIPITATION METHOD显示文摘The preparation of ultra fine Y A G( Y3 Al5 O12) po w der through co precipitation techniquew as investigated . The for m ation tem perature of Y A G w as lo wered belo w 800 ℃ by carefullycontrolling process para m eters . Ultra fine Y A G po w der w ith even size distribution , spheri cal shapes , and 40 n m particle size has been produced . It is found that for m ation of Y A Gisnot through the Y A M an d Y A Pinter mediate phases that are often observed during the synthe sis of Y A G by m ixed oxide m ethod . The sm all particle size of the precursor po w der , them olecular scale mixing of the constituents , and the poly m orphic transfor m ation of Al2 O3during heating accou nt m ainly for the reduction of for m ation tem perature of Y A Gan d the e lim ination of inter m ediate Y A M and Y A Pphases . | X. D. Li1) , X. D. Sun1) , L. X. Ding2) , Y. M . Wang2) , J. B. Li2) , H. Q. Ru1) and Z. M. Xiu1)1) School of Materials and Metallurgy , Northeastern University , Shenyang 110006 , China2) Department of Materials , School of M | 1999 | Acta Metallurgica Sinica(English Letters)1999，12，5： | 16 |
| 3 | 创新教学报告2015--探索教学、学习与评价的新形式显示文摘本报告提出了在教学应用方面呈现端倪的'十大创新教学法',包括跨界学习、论证学习、随机学习、基于情境的学习、计算思维、利用远程实验室在科学实验中学习、具身学习、适应性教学、情绪分析和隐性评价,预期这些方法有可能在教育实践中,尤其是在学校后继续教育中引发重大变革。 | M·沙普尔斯 A.亚当斯 N·阿洛齐 R.弗格森 E.菲茨杰拉德 M·加伟达 P·麦克安德鲁 B·米恩斯 J·雷莫尔德 B.懒迪厄斯 J.罗谢尔 K.沃格特 D.怀特洛克 L·亚纳尔 许玲(译) 高茜(译) 吴亚婕(译) | 2016 | 开放学习研究2016，21，1： | 8 |
| 4 | EFFECT OF PRECIPITANT ON THE PROPERTIES OF ULTRAFINE YTTRIA POWDER PRODUCED BY PRE CIPITATION METHOD显示文摘Using yttriu m nitrate as the m other salt , synthesis of ultrafine yttria po w der through w et che mical route w as investigated . Choice of precipitant has dra m atic effects on co m position ,particle size distribution and particle m orphology of the precipitates . When a m m onia solutionw as used as the precipitant , the precursor precipitate w as m ainly Y2( O H) 5 14( N O3) 0 86· H2 O with co m paratively large particle size , broad size distribution and co m plex particleshapes . When sodiu m hydroxide solution w as used , roughly spherical α Y( O H)3·3 H2 Opre cipitate w ith sm all particle size and narro w size distribution w as obtained . The transfor m a tion sequence of dry α Y( O H)3 ·3 H2 O gel during calcination w as determ ined to be α Y( O H) 3·3 H2 O→ Y O O H→ Y2 O3 . After calcining at 600 ℃ for 1 hour , both Y2( O H) 5 14( N O3) 0 86· H2 O and α Y( O H) 3·3 H2 O transfor m to well crystallized Y2 O3 pow ders ,w ith particle sizes of 50 ~3000 n m and 20 n m , respectively . | Y. Q. Jia1) , J. G. Li1) , Y. M. Wang2) , L. X. Ding2) , X. M . Qin1) and X. D. Sun1)1) School of Materials and Metallurgy , Northeastern University , Shenyang 110006 , China2) Department of Materials , School of Mechanical Engineering , She | 1999 | Acta Metallurgica Sinica(English Letters)1999，12，5： | 7 |
| 5 | 常规胸腹部多层CT矢状重组影像在检测骨质疏松骨折和脊椎异常诊断中的价值显示文摘本研究的目的是评价骨质疏松椎骨骨折和其他椎骨损伤在常规多层CT(MDCT)胸腹部扫描获得的矢状重组影像上的表现,以及在检出这些病变时矢状重组影像与横断位影像的差异,并研究这些病变在放射科报告中漏报的频度。112例绝经后妇女接受标准参数的常规腹部或胸腹部MDCT检查。横断位和矢状重组影像由2位放射科医师分别进行分析比较,并达成一致意见.以评价这些异常被检出的频度。此外还评价了放射科的报告,明确有多少异常得以诊断。112例绝经妇女中,101例显示脊椎异常。 | D. Müller J.S. Bauer M. Zeile E.J. Rummeny T.M. Link 白荣杰(译) 唐光健(校) | 2008 | 国际医学放射学杂志2008，31，5： | 6 |
| 6 | Sol-gel derived HA/TiO_2 double coatings on Ti scaffolds for orthopaedic applications显示文摘Hydroxyapatite/titania (HA/TiO2) double layers were coated onto Ti scaffolds throughout for orthopaedic applications by sol-gel method. Differential scanning calorimetry (DSC), thermogravimetric analysis (TG) and X-ray diffractometry (XRD) were used for the characterisation of the phase transformations of the dried gels and coated surface structures. Scanning electron microscope (SEM) equipped with energy dispersive spectrometry (EDS) was used for the observation and evaluation of the morphology and phases of the surface layers and for the assessment of the in vitro tests. The in vitro assessments were performed by soaking the HA/TiO2 double coated samples into the simulated body fluid (SBF) for various periods. The TiO2 dipping-coating method at a speed of 12 cm/min, followed by a heat treatment at 600 ℃ for 20 min. The HA la lyaeyre wr wasa ssu cbosaetqeude bnytl ya dipping-coated on the outer surface at the same speed and then heat-treated at difference temperatures. The results indicat that the HA phase begins to crystallize after a heat treatment at 560 ℃. The crystallinity increases obviously at 760 ℃. SEM observations find no delamination or crack at the interfaces of HA/TiO2 and TiO2/Ti. The HA/TiO2 coated Ti scaffolds displays excellent bone-like apatite forming ability when it is soaked into SBF. Ti scaffolds after HA/TiO2 double coatings can be anticipated as promising implant materials for orthopaedic | XU W HU W Y LI M H MA Q Q P. D. HODGSON WEN C E | 2006 | 中国有色金属学会会刊:英文版2006，16，B01： | 5 |
| 7 | Balloon kyphoplasty compared to vertebroplasty and nonsurgical management in patients hospitalised with acute osteoporotic vertebral compression fracture: a UK cost-effectiveness analysis显示文摘 | A. Svedbom L. Alvares C. Cooper D. Marsh O. Str?m | 2013 | Osteoporosis International2013，，1： | 5 |
| 8 | Multipurpose use of the ‘bear claw’ (over‐the‐scope‐clip system) to treat endoluminal gastrointestinal disorders显示文摘 | Klaus M?nkemüller Shajan Peter Jay Toshniwal Daniel Popa Marzena Zabielski Richard D. Stahl Jayapal Ramesh C. Mel Wilcox | 2014 | Digestive Endoscopy2014，，3： | 4 |
| 9 | 仙人掌果提取液对卵巢癌的抑制作用显示文摘目的:研究仙人掌果提取液在动物体内和体外对卵巢癌的抑制作用。方法:用Crystalviolet方法测定、细胞周期分析及细胞凋亡TUNEL分析观察仙人掌果提取液在体外对卵巢癌细胞生长的抑制作用;仙人掌果提取液对人卵巢癌的动物模型的治疗效果。结果:2种卵巢癌细胞(OVCA420和SKOV3)对于不同浓度仙人掌果提取液反应敏感程度不同,IC50分别是0·8%和8%,正常卵巢上皮细胞(IOSE)的IC50为2%;仙人掌果提取液可以有效的抑制卵巢癌在动物体内的生长(P<0·05),与N-(4-hydroxyphernyl)retinamide(4HPR)作用相似(P>0·05)。结论:仙人掌果提取液对体外卵巢癌细胞生长和动物体内的卵巢癌生长均有明显抑制作用。 | 邹大明 刘华钢 Molly Brewer Jean M Feugang 梁秋云 Kenneth D. Hatch Changping Zou | 2008 | 广西医学院学报2008，18，2： | 3 |
| 10 | Effects of Preheating Temperature, Moisture and Sodium Metabisulfite Content on Property of Maize Flour Dough显示文摘Processing temperature, maze flour particle size, and level of water and sodium metabisulfite were varied during the preparation of maize noodles. Preheated to 90—95 ℃ a mixture of maize flour or meal, water(43%—45% moisture) and salt enabled the preparation of noodles using a pasta extruder. Maize flour with smaller particle size yielded better noodles than did maize meal. The addition of sodium metabisulfite enabled the production of noodles at lower processing temperatures; however, cooking losses increased. Processing maize flour with higher water absorption yielded noodles that required longer cooking time but with decreased losses. The functionalities of starch and protein in raw ingredients and in products were determined. Starch gelatinized and retorgraded during processing maize noodles, as indicated by changes in pasting viscosity curves. Maize proteins contributed to the increased viscosity of dough above 40 ℃. The increased integrity of cooked maize noodles, however, corresponded to the increased amounts of gelatinized and retrograded starch. | TONG Yi 1, Waniska Ralph D. 2 and LI Wei 1** (1. College of Life Science, Jilin University, Changchun, 130023 2. Cereal Quality Laboratory, Department of Soil & Crop Sciences, Texas A & M University, College Station, Texas, 77843 24474) | 2000 | Chemical Research in Chinese Universities2000，16，3： | 2 |
| 11 | European Society for Pediatric Gastroenterology, Hepatology, and Nutrition Guidelines for the Diagnosis of Coeliac Disease显示文摘 | S. Husby S. Koletzko I.R. Korponay-Szabó M.L. Mearin A. Phillips R. Shamir R. Troncone K. Giersiepen D. Branski C. Catassi M. Lelgeman M. M?ki C. Ribes-Koninckx A. Ventura K.P. Zimmer | 2012 | Journal of Pediatric Gastroenterology and Nutrition2012，，1： | 2 |
| 12 | Outcomes of Neoadjuvant Transarterial Chemoembolization to Downstage Hepatocellular Carcinoma Before Liver Transplantation显示文摘 | William C. Chapman M B. Majella Doyle Jourdan E. Stuart Neeta Vachharajani Jeffrey S. Crippin Christopher D. Anderson Jeffrey A. Lowell Surendra Shenoy Michael D. Darcy Daniel B. Brown | 2008 | Annals of Surgery2008，，4： | 2 |
| 13 | Investigations on the Corrosion Behaviour and Structural Characteristics of Low Temperature Nitrided and Carburised Austenitic Stainless Steel显示文摘The wear resistance of austenitic stainless steels can be improved by thermo-chemical surface treatment with nitrogen and carbon. However, it is possible that the corrosion resistance will be impaired by the precipitation of chromiumnitrid or -carbide. The present contribution deals with investigations of the corrosion behaviour and structural characteristics of a low temperature nitrided and carburised austenitic stainless steel. The material investigated was AISI 316L (X2CrNiMol7-12-2) austenitic stainless steel. A commercial plasma-nitriding unit (pulsed dc) was used for the nitriding and carburising process. Additional samples were treated by the gasoxinitriding process for a comparison between plasma- and gasoxinitriding. The nitrided and carburised layer of austenitic stainless steel consists of the nitrogen or carbon S-phase (expanded austenite), respectively. X-ray diffraction investigations show the typical shift of the peaks to lower angles, indicating expansion of the fee lattice. Also the X-ray diffraction technique was employed to study the residual stresses in the nitrogen and carbon S-phase. The corrosion behaviour of surface engineered samples was investigated with electrochemical methods. Anodic potentiodynamic polarisation curves were recorded for testing the resistance against general corrosion (in H2SO4) and pitting corrosion (in NaCl). | D. Mnter H.-J. Spies H. Biermann Chr. Eckstein | 2004 | 材料热处理学报2004，25，5： | 2 |
| 14 | Increased Prevalence of Coronary Artery Aneurysms Among Cocaine Users显示文摘 | Aaron Satran Bradley A. Bart Christopher R. Henry M Bilal Murad Sumaiya Talukdar Daniel Satran Timothy D. Henry | 2005 | Circulation2005，，： | 2 |
| 15 | Management der postpartalen Blutung (PPH)显示文摘 | D. Schlembach M.G. M?rtl T. Girard W. Arzt E. Beinder C. Brezinka K. Chalubinski D. Fries W. Gogarten B.-J. Hackel?er H. Helmer W. Henrich I. H?sli P. Husslein F. Kainer U. Lang G. Pfanner W. Rath E. Schleussner H. Steiner D. Surbek R. Zimmermann | 2014 | Der Anaesthesist2014，，3： | 2 |
| 16 | Which Time-to-Peak Threshold Best Identifies Penumbral Flow?: A Comparison of Perfusion-Weighted Magnetic Resonance Imaging and Positron Emission Tomography in Acute Ischemic Stroke显示文摘 | J Sobesky O Zaro Weber F -G. Lehnhardt V Hesselmann A Thiel C Dohmen A Jacobs M Neveling W -D. Heiss | 2004 | Stroke2004，，12： | 2 |
| 17 | Evaluation of methods for the prediction of membrane spanning regions显示文摘 | Steffen Mö ller Michael D. R. Croning | 2001 | Bioinformatics2001，，： | 2 |
| 18 | European Society for Pediatric Gastroenterology, Hepatology, and Nutrition Guidelines for the Diagnosis of Coeliac Disease显示文摘 | S. Husby S. Koletzko I.R. Korponay-Szabó M.L. Mearin A. Phillips R. Shamir R. Troncone K. Giersiepen D. Branski C. Catassi M. Lelgeman M. M?ki C. Ribes-Koninckx A. Ventura K.P. Zimmer | 2012 | Journal of Pediatric Gastroenterology and Nutrition2012，，1： | 2 |
| 19 | Homotypic Interactions of Soluble and Immobilized Osteopontin显示文摘 | H. L. Goldsmith J. M. Labrosse F. A. McIntosh P. H. M?enp?? M. T. Kaartinen M. D. McKee | 2002 | Annals of Biomedical Engineering2002，，6： | 1 |
| 20 | Soluble CD 163, a marker of Kupffer cell activation, is related to portal hypertension in patients with liver cirrhosis显示文摘 | H. Gr?nb?k T. D. Sandahl C. Mortensen H. Vilstrup H. J. M?ller S. M?ller | 2012 | Aliment Pharmacol Ther2012，，2： | 1 |
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