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| 1 | La0.33Pr0.34Ca0.33MnO3薄膜的应变效应显示文摘采用脉冲激光沉积法分别在(100)LaAlO3和(100)SrTiO3基片上生长了La0.33Pr0.34Ca0.33MnO3薄膜,并通过磁测量和电输运测量对生长在不同基片上的La0.33Pr0.34Ca0.33MnO3薄膜的物性进行了研究.结果表明,基片和薄膜之间的压应力导致La0.33Pr0.34Ca0.33MnO3薄膜容易出现铁磁相,而电荷有序相则被抑制.基片和薄膜之间的张应力则导致La0.33Pr0.34Ca0.33MnO3薄膜容易出现电荷有序相,铁磁相被抑制.导致该现象的可能原因之一是应力使得晶格中Mn—O键角发生改变而引起双交换作用的改变. | 赵华英 杨欢 马继云 方煦 M.Kamran 戴耀民 李明 赵柏儒 邱祥冈 | 2008 | 物理学报2008，57，11： | 1 |
| 2 | The pathophysiology of advanced heart failure显示文摘 | M.Kamran Baig Niall Mahon William J. McKenna Alida L.P. Caforio Robert O. Bonow Gary S. Francis Mihai Gheorghiade | 1998 | American Heart Journal1998，，6： | 1 |
| 3 | Ethanol shock enhances the recovery of anthocyanin from lowbush blueberry显示文摘Deactivation of polyphenol oxidase(PPO)in natural products is essential for downstream processing of functional molecules used as food or food additives,particularly those served as antioxidants.In the present work,we identified two proteins with PPO activity from lowbush blueberry using ammonium sulphate precipitation and chromatography procedures.Deactivation of these proteins was studied using aqueous solutions of ethanol of different concentrations.The PPO activity was recovered after ethanol removal for the protein samples previously soaked in a lowconcentration ethanol solution.A complete and unrecoverable deactivation of the proteins was achieved using ethanol with concentration over 70%(v/v),as manifested by the significant changes in circular dichroism(CD)and fluorescence spectroscopy measurements.Based on these findings,we propose a new extraction process for blueberry anthocyanin,in which an ethanol shock,i.e.soaking blueberry fruit in a 70%(v/v)ethanol solution for 1 h,is implemented before subsequent procedures.This new process increases the anthocyanin yield by 55%in comparison to that without the ethanol shock. | Nueraili Maimaiti Niyazi Aili M.Kamran Khan Zhigang Tang Guoqiang Jiang Zheng Liu | 2020 | Chinese Journal of Chemical Engineering2020，28，12： | 0 |
| 4 | Automatic and Robust Segmentation of Multiple Sclerosis Lesions with Convolutional Neural Networks显示文摘The diagnosis of multiple sclerosis(MS)is based on accurate detection of lesions on magnetic resonance imaging(MRI)which also provides ongoing essential information about the progression and status of the disease.Manual detection of lesions is very time consuming and lacks accuracy.Most of the lesions are difficult to detect manually,especially within the grey matter.This paper proposes a novel and fully automated convolution neural network(CNN)approach to segment lesions.The proposed system consists of two 2D patchwise CNNs which can segment lesions more accurately and robustly.The first CNN network is implemented to segment lesions accurately,and the second network aims to reduce the false positives to increase efficiency.The system consists of two parallel convolutional pathways,where one pathway is concatenated to the second and at the end,the fully connected layer is replaced with CNN.Three routine MRI sequences T1-w,T2-w and FLAIR are used as input to the CNN,where FLAIR is used for segmentation because most lesions on MRI appear as bright regions and T1-w&T2-w are used to reduce MRI artifacts.We evaluated the proposed system on two challenge datasets that are publicly available from MICCAI and ISBI.Quantitative and qualitative evaluation has been performed with various metrics like false positive rate(FPR),true positive rate(TPR)and dice similarities,and were compared to current state-of-the-art methods.The proposed method shows consistent higher precision and sensitivity than other methods.The proposed method can accurately and robustly segment MS lesions from images produced by different MRI scanners,with a precision up to 90%. | H.M.Rehan Afzal Suhuai Luo Saadallah Ramadan Jeannette Lechner-Scott Mohammad Ruhul Amin Jiaming Li M.Kamran Afzal M.Kamran Afzal | 2021 | Computers, Materials & Continua2021，，1： | 0 |
| 5 | Organic geochemistry and source rock potential assessment of Late Paleocene Patala Formation in Margalla Hill Range,North Pakistan显示文摘Black shales of the Paleocene Patala Formation are proven source rocks for conventional hydrocarbons in southern Potwar Basin of Pakistan and are assumed to be effective source rocks towards north in the Margalla Hill Range of Pakistan.In this regard,the current study focuses on source rock geochemistry of the Paleocene Patala Formation to assess its source rock potential,organic matter types and thermal maturity levels in the Margalla Hill Range of North Pakistan.Source rock generative potential,kerogen types and thermal maturation of the analysed rock samples were unraveled by using Rock-Eval pyrolysis T_(max),TOC(total organic carbon)and vitrinite reflectance(R_(0))analyses.TOC analysis coupled with S_(2) yield revealed poor to fair source rock quality encountered within the formation.The pyrolysis T_(max) vs Hydrogen Index(HI),showed mostly Type Ⅲ kerogen dominated by thermally immature to mature organic matter.The HI and genetic potential is low and revealed poor hydrocarbon generation potential of the formation.The S_(1) vs TOC plots confirm the indigenous nature of the hydrocarbons hosted by Patala Formation.The vitrinite reflectance outcomes indicated immature to mature source rock beds lying in dry gas zone.The HI and OI signatures and abundance of Type Ⅲ kerogen are indicating dominance of terrestrial organic matter within the formation.Overall,the investigated Patala Formation exposed at the studied section of Margalla Hill Range,Pakistan acts as a poor source rock unit for liquid hydrocarbon generation but holds prospects for dry gas generation in the study area. | Shams M.Kamran WANG Pujun Nasar Khan Muhammad Hassan | 2021 | Global Geology2021，24，4： | 0 |
| 6 | Exact analytical solutions for axial flow of a fractional second grade fluid between two coaxial cylinders显示文摘The velocity field and the adequate shear stress corresponding to the longitudinal flow of a fractional second grade fluid,between two infinite coaxial circular cylinders,are determined by applying the Laplace and finite Hankel transforms.Initially the fluid is at rest,and at time t=0^+, the inner cylinder suddenly begins to translate along the common axis with constant acceleration. The solutions that have been obtained are presented in terms of generalized G functions.Moreover, these solutions satisfy ... | M.Imran M.Kamran M.Athar | 2011 | Theoretical & Applied Mechanics Letters2011，1，2： | 0 |
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