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| 1 | Late Cretaceous biota and the Cretaceous-Paleogene(K--Pg)Boundary in Jiayin of Heilongjiang,China显示文摘An international cooperative study of the Late Cretaceous biota and non-marine strata including the Cretaceous-Paleogene(K--Pg) boundary in Jiayin near the Heilongjiang River,China during 2002-2010,is summarized in this paper. The strata includes the Upper Cretaceous Yong'ancun-,Taipinglinchang-,Yuliang-zi-,and Furao formations,and the Paleocence Wuyun Formation consisting of Baoshantou Member and a Coalbearing Member. Seven palynological assemblages from Santonian to Paleocene are recognized,which is used for definition of the K--Pg boundary. Through the palynological analysis of three drilled boreholes (XHY-2005,2006,2008) in Xiaoheyan of western Jiayin,the K--Pg boundary is defined within 20. 00-20. 05 m in the borehole XHY-2006 (as a standard boundary) which is just between the top of Furao Formation (late Maasterichtian) and the base of Baishantou Member (early Danian) . These new research results are supported by paleo- magnetic,geochemical and other analyses,also. On the other hand,the presence of eight taxa of Maasterichtian dinosaurs (mostly hadrosaurids) have been recognized by the authors; and two mega-plant assemblages from the Yong'ancun Fm (Santonian) to Taipinglinchang Fm (Campanian) are confirmed. These research a-chievements indicate that the Upper Cretaceous-Paleocene in Jiayin can be well correlated to the strata in the neighboring Zeya-Bureja basin,Russia. The K--Pg boundary definited in Jiayin is the first well documented non-marine K--Pg boundary in China. Also the related paleoclimate,paleoenvironment and the mass extinctions in this area during the Cretaceous-Paleocene transition are also discussed. | Sun G. Akhmetiev M. Markevich V. Ashraf A. R. Bugdaeva E. Godefroit P. Bolotsky Yu. Dong Z. M. Golovneva L. Yang H. X. Sun C. L. Sun Y. W. Quan C. Kodrul T. Kezina T. Johnson K. Nishida H Dilcher D. L. Harding I. Chen Y. J. | 2011 | Global Geology2011，14，3： | 9 |
| 2 | Production of carbide-free thin ductile iron castings显示文摘The fast cooling rate of thin ductile iron castings requires special consideration to produce carbide-free castings. Extraor-dinary care was taken to select the charge to produce castings of 100-mm long round bars with 16-mm diameter. The castings show the presence of carbides in the bars. Seven melts were made with different temperatures and with different compositions to get rid of carbides. After chemical analyses,it was found that the extra purity of the charge with less than 0.008wt% sulfur in the castings was the cause of carbides. To remove the carbides from the castings,sulfur should be added to the charge. | M. Ashraf Sheikh | 2008 | Journal of University of Science and Technology Beijing2008，15，5： | 7 |
| 3 | Roles of glycine betaine and proline in improving plant abiotic stress resistance显示文摘 | M. Ashraf M.R. Foolad | 2006 | Environmental and Experimental Botany2006，，2： | 4 |
| 4 | Frequency of antibiotic resistance in Helicobacter pylori strains isolated from the northern population of Iran显示文摘 | Amin Talebi Bezmin Abadi Tarang Taghvaei Ashraf Mohabbati Mobarez Beth M. Carpenter D. Scott Merrell | 2011 | The Journal of Microbiology2011，，6： | 2 |
| 5 | Effect of Lanthanum on Nodule Count and Nodularity of Ductile Iron显示文摘The present study aims at finding out the effect of the addition of a single rare earth element, that is, lanthanum on the nodularity and nodule count of ductile iron under controlled conditions. For this purpose, four melts with different compositions were made, using a 28 kg inductotherm medium frequency induction furnace. The temperature was carefully maintained between 1400 and 1450 ℃ for these heats. A good quality charge consisting of Sorel metal, ferrosilicon, Swedish iron, ferrosilicon magnesium, and ferrosilicon lanthanum was used for the production of melts. A vertically parted sand mould was used for casting of 10 test bars made from local silica sand. Standard coin samples were chill-cast to conduct chemical analysis of the ductile iron. Microstructure study of the samples was conducted using a Leica optical microscope. Nodule count and nodularity of the samples were carried out using an image analyzer. The results obtained indicated that with the increased addition of lanthanum the nodule count of ductile iron increased, thus making it evident that it played a significant role in increasing the mechanical properties. The highest nodule count of 467 was obtained with the addition of 0.03% lanthanum. However, the effect of lanthanum on nodularity was negligible with nodularity ranging from 81% to 83%. | M. Ashraf Sheikh Javed Iqbal | 2007 | Journal of Rare Earths2007，25，5： | 2 |
| 6 | Colorectal Liver Metastases显示文摘 | Ashraf J. Haddad Murad Bani Hani Timothy M. Pawlik Steven C. Cunningham S. Curley | 2011 | International Journal of Surgical Oncology2011，，： | 2 |
| 7 | Appropriate teaching and learning strategies for the architectural design process in pedagogic design studios显示文摘 | Ashraf M. Soliman | 2017 | Frontiers of Architectural Research2017，6，2： | 2 |
| 8 | Potential biochemical indicators of salinity tolerance in plants显示文摘 | M. Ashraf P.J.C. Harris | 2003 | Plant Science2003，，1： | 2 |
| 9 | Biomechanical and morphological corneal response to placement of intrastromal corneal ring segments for keratoconus显示文摘 | Caroline Dauwe David Touboul Cynthia J. Roberts Ashraf M. Mahmoud Julien Kérautret Pierre Fournier Fran?ois Malecaze Joseph Colin | 2009 | Journal of Cataract & Refractive Surgery2009，，10： | 1 |
| 10 | Diagnostic utility of EUS-guided FNA in patients with gastric submucosal tumors显示文摘 | Mohamed A. Mekky Kenji Yamao Akira Sawaki Nobumasa Mizuno Kazuo Hara Mohamed A. Nafeh Ashraf M. Osman Takashi Koshikawa Yasushi Yatabe Vikram Bhatia | 2010 | Gastrointestinal Endoscopy2010，，6： | 1 |
| 11 | The Value of Serum Midkine Level in Diagnosis of Hepatocellular Carcinoma显示文摘 | Karim Y. A. Shaheen Abeer I. Abdel-Mageed Eslam Safwat Ashraf M. AlBreedy Shigeru Marubashi | 2015 | International Journal of Hepatology2015，，： | 1 |
| 12 | Structural behavior of intermediate length cold-formed steel rack columns with C-stitches显示文摘This article presents an experimental and numerical investigation on the strength and performance of intermediate length rack column sections with C-stitches under axial compression. The test program consisted of 10 axial concentric compression tests on columns with and without C-stitches under pin end conditions for two different geometric lengths. Finite element (FE) models were developed using commercial FE package ABAQUS considering material and geometric nonlinearities as well as initial geometric imperfections. The elastic buckling properties of the section were calculated using readily available linear elastic buckling analysis tools based on Generalized Beam Theory (GBT) and Finite Strip Method (FSM). Obtained FE results were compared with those obtained experimentally, and once verified the developed FE modeling technique was used to carry out a parametric study to examine changes in structural response due to variations in length, depth and spacing of C-stitches. Observed influences of C-stitches on the behavior and resistance of the considered columns were carefully analyzed, and key design aspects are presented herein. | M. ANBARASU Mahmud ASHRAF | 2019 | Frontiers of Structural and Civil Engineering2019，13，4： | 1 |
| 13 | Minimal effects of acute liver injury/acute liver failure on hemostasis as assessed by thromboelastography显示文摘 | R. Todd Stravitz Ton Lisman Velimir A. Luketic Richard K. Sterling Puneet Puri Michael Fuchs Ashraf Ibrahim William M. Lee Arun J. Sanyal | 2011 | Journal of Hepatology2011，，1： | 1 |
| 14 | Corrosion-protective performance of nano polyaniline/ferrite dispersed alkyd coatings显示文摘 | Javed Alam Ufana Riaz S. M. Ashraf Sharif Ahmad | 2008 | Journal of Coatings Technology and Research2008，，1： | 1 |
| 15 | MHD flow and heat transfer of micropolar fluid between two porous disks显示文摘A numerical study is carried out for the axisymmetric steady laminar incompressible flow of an electrically conducting micropolar fluid between two infinite parallel porous disks with the constant uniform injection through the surface of the disks. The fluid is subjected to an external transverse magnetic field. The governing nonlinear equations of motion are transformed into a dimensionless form through von Karman's similarity transformation. An algorithm based on a finite difference scheme is used to solve the reduced coupled ordinary differential equations under associated boundary conditions. The effects of the Reynolds number, the magnetic parameter, the micropolar parameter, and the Prandtl number on the flow velocity and temperature distributions are discussed. The results agree well with those of the previously published work for special cases. The investigation predicts that the heat transfer rate at the surfaces of the disks increases with the increases in the Reynolds number, the magnetic parameter, and the Prandtl number. The shear stresses decrease with the increase in the injection while increase with the increase in the applied magnetic field. The shear stress factor is lower for micropolar fluids than for Newtonian fluids, which may be beneficial in the flow and thermal control in the polymeric processing. | M. ASHRAF A. R. WEHGAL | 2012 | Applied Mathematics and Mechanics(English Edition)2012，33，1： | 1 |
| 16 | Ion-Acoustic Shock Waves in Nonextensive Electron-Positron-Ion Plasma显示文摘严密理论调查用离子声学的吃惊做的 A 在 unmagnetized 组织其成分是 nonextensive 电子, nonextensive 正电子,和惯性的离子的三部件的血浆。汉堡包方程被采用减少的不安方法导出。电子和正电子 nonextensivity 和离子的效果这些离子声学的冲击波的性质上的运动学的粘性简短被讨论。有积极、否定的潜力的冲击波被获得取决于血浆参数,这被发现。我们的结果的继承人之限制可能是有用的包括星的 polytropes, hadronic 事和 quark-gluon 血浆理解一些天体物理学、宇宙论的情形, protoneutron 星,黑暗事的光圈,等等,在 nonextensivity 的效果能起重要作用的地方。 | M. Ferdousi S. Yasmin S. Ashraf A. A. Mamun | 2015 | Chinese Physics Letters2015，32，1： | 1 |
| 17 | A new nearest-neighbor association approach based on fuzzy clustering显示文摘 | Ashraf M. Aziz | 2012 | Aerospace Science and Technology2012，，： | 1 |
| 18 | Nonlinear propagation of ion-acoustic waves in an electron-positron-ion plasma显示文摘 | M. Ferdousi S. Yasmin S. Ashraf A. A. Mamun | 2014 | Astrophysics and Space Science2014，，2： | 1 |
| 19 | Effect of root-zone salinity and form of N on photosynthate partitioning in wheat (Triticum aestivum L.)显示文摘 | M. Akram M. Y. Ashraf R. Ahmad E. A. Waraich | 2008 | Acta Physiologiae Plantarum2008，，6： | 1 |
| 20 | Growth Responses of Wheat Cultivars to Rock Phosphate in Hydroponics显示文摘Screening cultivars to grow under conditions of low phosphorus (P) availability and utilize P efficiently from compounds of low solubility in soils may be beneficial to overcome poor plant growth in P-deficient soils. The growth behavior and P utilization efficiency of seven wheat cultivars grown in hydroponics were studied, using rock phosphate as P source. The wheat cultivars grown for 30 days were significantly different in biomass accumulation, P uptake and P utilization efficiency. The dry matter production of all the cultivars was significantly correlated with P uptake, which in turn correlated to the drop in the root medium pH. The ranking of wheat cultivars on the basis of dry matter yield, P uptake and P utilization efficiency was Zamindar 80 > Yecora > C 271 > WL 711 > Barani 83 > PARI 73 > Rohtas. The cultivar Zamindar 80 appeared to possess the best growth potential in P-deficient soils. | M. ASHRAF RAHMATULLAH M. A. MAQSOOD S. KANWAL M. A. TAHIR L. ALI | 2009 | Pedosphere2009，19，3： | 1 |
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