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Exact solutions for unsteady flow of second grade fluid generated by oscillating wall with transpiration

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Applied Mathematics and Mechanics(English Edition) 2014年第7期35卷 821-830页

作者： M.ABDULHAMEED i.khan D.ViERU S.SHAFiE Department of Mathematical Sciences Faculty of ScienceUniversiti Teknologi Malaysia Skudai 81310 Malaysia Department of Theoretical Mechanics Technical University of Iasi Iasi R-6600 Romania

A problem of unsteady flow of a second grade fluid over flat plates with the impulsive and oscillating motion, starting from rest, and with the wall transpiration is considered. The exact solutions are derived by the Laplace transform, the perturbation techniques, and an extension of the variable separation technique together with similarity arguments. These solutions are written as the sum between the permanent solutions and the transient solutions. The variations of fluid behaviors with various physical parameters are shown graphically and analyzed. The results are validated by comparing the limiting cases of the present paper with the results of the related published articles.

关键词： Stokes' problem second grade fluid wall transpiration oscillating wall

Recent advances in the management of hyponatremia in cancer patients

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Journal of Cancer Metastasis and Treatment 2019年第10期4卷 21-32页

作者： Maryam i.khan Steven G.Waguespack intekhab Ahmed Division of Endocrinology Diabetes and MetabolismJefferson HealthVoorheesNJ 08043USA Department of Endocrine Neoplasia and Hormonal disorders University of Texas M.D.Anderson Cancer CenterHoustonTX 77030USA Division of Endocrinology Diabetes and MetabolismJefferson HealthPhiladelphiaPA 19107USA.

Hyponatremia is the most frequently encountered electrolyte disorder in cancer patients and is usually multifactorial in its *** this review,we discuss the predisposing factors,pathophysiology,clinical symptomatology,and currently available diagnostic and therapeutic options for the management of *** addition to paraneoplastic syndromes,concurrent chemotherapy and comorbidities predispose oncology patients to the risk of *** symptoms and signs can be subtle and the prompt evaluation and initiation of treatment is of paramount importance to prevent neurocognitive and other *** syndrome of inappropriate antidiuresis(SiAD)is the most common cause of hyponatremia,and the use of serum and urine parameters that distinguish SiAD from other etiologies is *** treatment is preferred depending on the underlying cause and severity of *** treatment of hyponatremia is reviewed and the importance of avoiding rapid overcorrection of the sodium level to reduce the risk of osmotic demyelination syndrome is *** receptor antagonists(vaptans)offer a direct approach to the management of euvolemic and hypervolemic hyponatremia,but the indications for their use and long-term safety need to be *** treatment of hyponatremia is likely to reduce complications and improve survival in cancer patients.

关键词： Hyponatremia electrolyte abnormalities dysnatremias cancer

New Orally Active Artemisinin Dimer Antimalarials

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World Journal of Traditional Chinese Medicine 2017年第3期3卷 1-11页

作者： Mahmoud A. EiSohly Waseem Gul Shabana i.khan Babu L.Tekwani EiSohly Laboratories Inc. National Center for Natural Products Research The University of Mississippi Departments of Pharmaceutics and Drug Delivery The University of Mississippi Departments of Biomolecular Sciences School of PharmacyThe University of Mississippi

Objective: To synthesize orally bioavailable artemisinin dimers and the evaluation of their in vivo antimalarial activity. Methods: Artemsisin dimers were synthesized and their antimalarial activity was determined in in vitro and in vivo studies(administered orally and iP). Results: Dimers5 and 6 provided 100% suppression of parastemia throughout the oral administration study, with all animals surviving up to day 28(the last day of the study). Conclusion: Dimers 4-7 displayed markedly improved in vitro activity against P. falciparum, while the in vivo activity against P. berghei was highly encouraging, with 5 and 6 completely clearing parasitemia from the start of the drug treatment until the end of the study(day 28).

关键词： Artemisinin Artemisinin dimer Plasmodium berghei Plasmodium falciparum

Thermo-diffusion impact on immiscible flow characteristics of convectively heated vertical two-layered Baffle saturated porous channels in a suspension of nanoparticles:an analytical study

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Applied Mathematics and Mechanics(English Edition) 2023年第2期44卷 307-324页

作者： S.P.V.ANANTH B.N.HANUMAGOWDA S.V.K.VARMA C.S.K.RAJU i.khan P.RANA Department of Mathematics School of Applied SciencesREVA UniversityBangalore 560064India Department of Mathematics GITAM School of ScienceGITAM UniversityBangalore 562163India Department of Mathematics College of Science Al-ZulfiMajmaah UniversityAl-Majmaah 11952Saudi Arabia School of Mathematical Sciences College of Science and TechnologyWenzhou-Kean UniversityWenzhou 325060Zhejiang ProvinceChina

The heat and mass transfer of two immiscible fluids in an inclined channel with thermal diffusion,vicious,and Darcy dissipation is *** first region consists of a clear fluid,and the second one is filled with a nanofluid saturated with a porous *** behaviors of Cu-H_(2)O,in-H_(2)O,and Au-H_(2)O nanofluids are *** transport properties are assumed to be *** coupled non-linear equations of the flow model are transformed into the dimensionless form,and the solutions for the velocity,temperature,and concentration are obtained by the regular perturbation *** are carried out on the flow characteristics for various values of the material *** results show that the velocity and temperature of the fluids enhance with the thermal Grashof number,solutal Grashof number,and Brinkman number while decrease with the porosity parameter and solid volume fraction.

关键词： viscous fluid nanofluid heat and mass transfer thermal diffusion

50%苯基甲基聚硅氧烷气相色谱柱的独特选择性分离包括苯并荧蒽在内的18种多环芳烃

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环境化学 2016年第9期35卷 1972-1973页

作者： Anila i.khan 孙薇 Thermo Fisher Scientific Runcorn UK 赛默飞世尔科技(中国)有限公司上海201206

分析多环芳烃混合物的主要困难之一是气相色谱-质谱法难以使异构体达到基线分离.使用Thermo公司的TG-17SiLMS色谱柱分离18种多环芳烃,固定相的独特选择性使苯并荧蒽[b]、[j]、[k]的3种异构体得到了完全的分离.

关键词：多环芳烃 GC-MS 选择性荧蒽

Unsteady thin film flow of a fourth grade fluid over a vertical moving and oscillating belt

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Propulsion and Power Research 2016年第3期5卷 223-235页

作者： Taza Gul Fazle Ghani S.islam R.A.Shah i.khan Saleem Nasir S.Sharidand Department of Mathematics Abdul Wali Khan UniversityMardanKPKPakistan Department of Mathematics University Engineering Technology PeshawarKPKPakistan Department of Basic Sciences College of Engineering Majmaah UniversityP.O.Box 66Majmaah 11952Saudi Arabia Department of Mathematical Sciences Faculty of ScienceUniversiti Teknologi MalaysiaUTM Johor Bahru81310 JohorMalaysia

This article studies the unsteady thin film flow of a fourth grade fluid over a moving and oscillating vertical *** problem is modeled in terms of non-nonlinear partial differential equations with some physical *** problems of lift and drainage are *** different techniques namely the adomian decomposition method(ADM)and the optimal homotopy asymptotic method(OHAM)are used for finding the analytical *** solutions are compared and found in excellent *** the physical analysis of the problem,graphical results are provided and discussed for various embedded flow parameters.

关键词： Unsteady flow Thin film Lifting and drainage Fourth grade fluid Adomian decomposition method(ADM) Optimal homotopy asymptotic method(OHAM)

应用PCR检测人工感染鸡体内鸡传染性贫血病毒的动态分布

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中国兽医科技 1999年第2期29卷 5-7页

作者：谢芝勋 Mazhar i.khan Theodore Girshick 广西兽医研究所美国康涅狄格州大学兽医系美国SPAFAS国际公司

应用聚合酶链反应（ＰＣＲ）技术检测人工感染１２周龄ＳＰＦ鸡体内鸡传染性贫血病毒（ＣＡＶ）的动态分布结果，感染后第２周可从外周血液白细胞中检出ＣＡＶＤＮＡ，在第３周时达到最高峰，然后逐渐下降，第６周时检出率仅为６．３... 详细信息

应用聚合酶链反应（ＰＣＲ）技术检测人工感染１２周龄ＳＰＦ鸡体内鸡传染性贫血病毒（ＣＡＶ）的动态分布结果，感染后第２周可从外周血液白细胞中检出ＣＡＶＤＮＡ，在第３周时达到最高峰，然后逐渐下降，第６周时检出率仅为６．３％（３／４８），第７周以后均未能从血液白细胞中检测到ＣＡＶＤＮＡ；人工感染后第２～１２周均能从骨髓、胸腺、脾、肾、肝和腔上囊等组织检出ＣＡＶＤＮＡ，其中以骨髓和胸腺的检出率最高（８５．０％），其次是脾（８０．０％）、肾和肝（６０．０％），腔上囊最低（２５．０％），从１２周以后上述几种组织中再未检测到ＣＡＶＤＮＡ。并从ＰＣＲ检测结果为阳性的组织中也分离到ＣＡＶ。

关键词：聚合酶链反应鸡传染性贫血病毒动态分布

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应用PCR检测禽腺病毒

中国兽医学报 2000年第4期20卷 332-334页

作者：谢芝勋,Mazhari.khan 广西兽医研究所!广西南宁530001 美国康涅狄格州大学兽医系

根据禽腺病毒 CELO株的基因序列 ,设计合成了 1对引物 :上游引物为 5′-CCCTCCCACCGC-TAACCA-3′,下游引物为 5′-CACGTTGCCCTTATCTTGC-3′。用这对引物对群禽腺病毒中 1 2个血清型病毒和 1 9个分离野毒株、群 4个血清型病毒、群禽... 详细信息

根据禽腺病毒 CELO株的基因序列 ,设计合成了 1对引物 :上游引物为 5′-CCCTCCCACCGC-TAACCA-3′,下游引物为 5′-CACGTTGCCCTTATCTTGC-3′。用这对引物对群禽腺病毒中 1 2个血清型病毒和 1 9个分离野毒株、群 4个血清型病毒、群禽腺病毒株的核酸模板进行了 PCR扩增 ,结果均特异性地扩增出了与设计片段大小相一致的 4 2 1 bp片段 ,而对其他 5种禽病病原体和哺乳动物腺病毒血清 2型核酸模板的扩增均为阴性。该 PCR能检出 1 fg禽腺病毒 DNA模板

关键词：禽腺病毒 PCR 引物

Concept Learning in Neuromorphic Vision Systems: What Can We Learn from insects?

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Journal of Software Engineering and Applications 2014年第5期7卷 387-395页

作者： Fredrik Sandin Asad i.khan Adrian G.Dyer Anang Hudaya M.Amin Giacomo indiveri Elisabetta Chicca Evgeny Osipov EiSLAB Lulea University of TechnologyLuleaSweden Clayton School of information Technology Monash UniversityClaytonAustralia Department of Physiology Monash UniversityClaytonAustralia School of Media and Communication Royal Melbourne Institute of TechnologyMelbourneAustralia Faculty of information Science&Technology(FiST) Multimedia UniversityMelakaMalaysia institute of Neuroinformatics University of Zurich and ETH ZurichZurichSwitzerland Cognitive interaction Technology Center of ExcellenceBielefeld UniversityBielefeldGermany Division of Computer Science Lulea University of TechnologyLuleaSweden

Vision systems that enable collision avoidance, localization and navigation in complex and uncertain environments are common in biology, but are extremely challenging to mimic in artificial electronic systems, in particular when size and power limitations apply. The development of neuromorphic electronic systems implementing models of biological sensory-motor systems in silicon is one promising approach to addressing these challenges. Concept learning is a central part of animal cognition that enables appropriate motor response in novel situations by generalization of former experience, possibly from a few examples. These aspects make concept learning a challenging and important problem. Learning methods in computer vision are typically inspired by mammals, but recent studies of insects motivate an interesting complementary research direction. There are several remarkable results showing that honeybees can learn to master abstract concepts, providing a road map for future work to allow direct comparisons between bio-inspired computing architectures and information processing in miniaturized “real” brains. Considering that the brain of a bee has less than 0.01% as many neurons as a human brain, the task to infer a minimal architecture and mechanism of concept learning from studies of bees appears well motivated. The relatively low complexity of insect sensory-motor systems makes them an interesting model for the further development of bio-inspired computing architectures, in particular for resource-constrained applications such as miniature robots, wireless sensors and handheld or wearable devices. Work in that direction is a natural step towards understanding and making use of prototype circuits for concept learning, which eventually may also help us to understand the more complex learning circuits of the human brain. By adapting concept learning mechanisms to a polymorphic computing framework we could possibly create large-scale decentralized computer vision system

关键词： Concept Learning Computer Vision Computer Architecture Neuromorphic Engineering insect