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MHD flow of a viscous fluid on a nonlinear porous shrinking sheet with homotopy analysis method

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Applied Mathematics and Mechanics(English Edition) 2009年第12期30卷 1569-1578页

作者： S. Nadeem anwar Hussain Department of Mathematics Quaid-i-Azam University

The present paper investigates the magnetohydrodynamic（MHD） flow of a viscous fluid towards a nonlinear porous shrinking *** governing equations are simplified by similarity *** reduced problem is then solved by the homotopy analysis *** pertinent parameters appearing in the problem are discussed graphically and presented in *** is found that the shrinking solutions exist in the presence of *** is also observed from the tables that the solutions for f（0） with different values of parameters are convergent.

关键词： MHD flow stagnation flow shrinking sheet homotopy analysis method

巴尔鲁克山国家级自然保护区的朽木生地衣群落结构特征及其多样性

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东北林业大学学报 2024年第6期52卷 43-50页

作者：热汗古丽·买买提艾力艾尼瓦尔·吐米尔新疆大学乌鲁木齐830046

根据对新疆巴尔鲁克山国家级自然保护区朽木生地衣群落18个样点(20 m×20 m)调查的数据,以各地衣种的盖度为指标结合双向指示种分析方法(TWINSPAN)和除趋势对应分析法(DCA),对保护区朽木生地衣群落进行数量分类并分析了群落结构特征及... 详细信息

根据对新疆巴尔鲁克山国家级自然保护区朽木生地衣群落18个样点(20 m×20 m)调查的数据,以各地衣种的盖度为指标结合双向指示种分析方法(TWINSPAN)和除趋势对应分析法(DCA),对保护区朽木生地衣群落进行数量分类并分析了群落结构特征及其多样性和相似性。采用典范对应分析法(CCA)对各群落的物种分布格局与环境因子的关系进行了探讨。结果表明:TWINSPAN分析和DCA排序将分布在巴尔鲁克山自然保护区的20种朽木生地衣分为以下4个群落。群落1——矮石蕊(Cladonia humilis(With.)***)+犬地卷(Peltigera aphthosa(L.)Willd.)群落;群落2——喇叭粉石蕊(Cladonia chlorophaea(Floex Sommerf.)Spreng.)+土星猫耳衣(Leptogium saturninum(Dicks.)Nyl.)+枪石蕊(Cladonia coniocreae(Flk.)Spreng.)群落;群落3——平盘软地卷(Peltigera elisabethae Gyeln.)+犬地卷+多指地卷(Peltigera polydactyla(Neck.)Hoffm.)群落;群落4——膜地卷(Peltigera membranacea(Ach.)Nyl.)+喇叭粉石蕊+分指地卷(Peltigera didactyla(With.)***.)群落。物种多样性以群落2最大为3.478;群落1最小为2.716;群落2和群落4间的相似性最高为0.856,群落1和群落3相似性系数最低为0.434。朽木生地衣的分布与朽木树种具有专一性,分布在雪岭云杉上的地衣种类最多。CCA排序结果反映,该地区朽木生地衣的分布与森林植被郁闭度、光照强度、朽木腐蚀度的影响较大,而与朽木直径大小、朽木pH等因素的影响不大。

关键词：朽木生地衣群落分类多样性巴尔鲁克山中国新疆

Optimization and modeling of glyphosate biodegradation by a novel Comamonas odontotermitis P2 through response surface methodology

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Pedosphere 2020年第5期30卷 618-627页

作者： Sadiqa FIRDOUS Samina IQBAL Samina anwar Soil and Environmental Biotechnology Division National Institute for Biotechnology and Genetic Engineering(NIBGE)Faisalabad 38000(Pakistan) Pakistan Institute of Engineering and Applied Sciences(PIEAS) NiloreIslamabad 45650(Pakistan)

Glyphosate is an important organophosphonate herbicide used to eliminate grasses and herbaceous plants in many vegetation management *** extensive use is causing environmental pollution,and consequently,there is a need to remove it from the environment using an eco-friendly and cost-effective *** a step to address this problem,a novel bacterial strain Comamonas odontotermitis F2,capable to utilize glyphosate as a carbon(C)and/or phosphorus(P)source,was isolated from a glyphostate-contaminated field soil in Australia and *** surface methodology(RSM)employing a 2^3 full factorial central composite design was used to optimize glyphosate degradation by *** P2 under various culture *** strain *** P2 was proficient in degrading 1.5 g L^-1 glyphosate completely within 104 *** optimal conditions for the degradation of glyphosate were found to be pH 7.4,29.9℃,and an inoculum density of 0.54 g L^-1,resulting in a maximum degradation of 90%.Sequencing of glyphosate oxidoreductase(GOX)and C-P lyase(phnJ)genes from *** P2 revealed 999c and 93%identities to already reported bacterial GOX and phnJ genes,*** presence of these two genes in *** indicates its potential to degrade glyphosate through GOX and C-P lyase metabolic *** study demonstrates the potential of *** P2 for efficient degradation of glyphosate,which can be exploited for remediation of glyphosate.

关键词： bacterial strain central composite rotatable design glyphosate oxidoreductase high-performance liquid chromatography inoculum density organophosphonate herbicide remediation

Early versus delayed necrosectomy in pancreatic necrosis:A population-based cohort study on readmission,healthcare utilization,and in-hospital mortality

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World Journal of Methodology 2024年第3期14卷 55-67页

作者： Hassam Ali Faisal Inayat Vinay Jahagirdar Fouad Jaber Arslan Afzal Pratik Patel Hamza Tahir Muhammad Sajeel anwar Attiq Ur Rehman Muhammad Sarfraz Ahtshamullah Chaudhry Gul Nawaz Dushyant Singh Dahiya Amir H Sohail Muhammad Aziz Division of Gastroenterology and Hepatology East Carolina University Brody School of MedicineGreenvilleNC 27834United States Department of Internal Medicine Allama Iqbal Medical CollegeLahorePunjab 54550Pakistan Department of Internal Medicine University of Missouri-Kansas CityKansas CityMO 64108United States Division of Gastroenterology Mather Hospital and Zucker School of Medicine at Hofstra UniversityPort JeffersonNY 11777United States Department of Internal Medicine Jefferson Einstein HospitalPhiladelphiaPA 19141United States Department of Internal Medicine UHS Wilson Medical CenterJohnson CityNY 13790United States Division of Gastroenterology and Hepatology Geisinger Wyoming Valley Medical CenterWilkes-BarrePA 18711United States Department of Internal Medicine St.Dominic's HospitalJacksonMS 39216United States Division of Gastroenterology Hepatologyand MotilityThe University of Kansas School of MedicineKansas CityKS 66160United States Department of Surgery University of New Mexico School of MedicineAlbuquerqueNM 87106United States Division of Gastroenterology and Hepatology The University of ToledoToledoOH 43606United States

BACKGROUND Acute necrotizing pancreatitis is a severe and life-threatening *** poses a considerable challenge for clinicians due to its complex nature and the high risk of *** minimally invasive and open necrosectomy procedures have been *** advancements in treatment modalities,the optimal timing to perform necrosectomy lacks *** To evaluate the impact of necrosectomy timing on patients with pancreatic necrosis in the United *** A national retrospective cohort study was conducted using the 2016-2019 Nationwide Readmissions *** with non-elective admissions for pancreatic necrosis were *** participants were divided into two groups based on the necrosectomy timing:The early group received intervention within 48 hours,whereas the delayed group underwent the procedure after 48 *** various intervention techniques included endoscopic,percutaneous,or surgical *** major outcomes of interest were 30-day readmission rates,healthcare utilization,and inpatient *** A total of 1309 patients with pancreatic necrosis were *** propensity score matching,349 cases treated with early necrosectomy were matched to 375 controls who received delayed *** early cohort had a 30-day readmission rate of 8.6% compared to 4.8%in the delayed cohort(P=0.040).Early necrosectomy had lower rates of mechanical ventilation(2.9%vs 10.9%,P<0.001),septic shock(8%vs 19.5%,P<0.001),and in-hospital mortality(1.1%vs 4.3%,P=0.01).Patients in the early intervention group incurred lower healthcare costs,with median total charges of $52202 compared to$147418 in the delayed *** in the early cohort also had a relatively shorter median length of stay(6 vs 16 days,P<0.001).The timing of necrosectomy did not significantly influence the risk of 30-day readmission,with a hazard ratio of 0.56(95%confidence interval:0.31-1.02,P=0.06).CONCLUSION Our findings show that

关键词： Acute necrotizing pancreatitis Pancreatic necrosis Early necrosectomy Delayed necrosectomy Readmission,Healthcare costs Mortality

Massive MIMO system lower bound spectral efficiency analysis with precoding and perfect CSI

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Digital Communications and Networks 2021年第3期7卷 342-351页

作者： Tasher Ali Sheikh Joyatri Bora Md anwar Hussain Department of Electronics and Communication Engineering North Eastern Regional Institute of Science and TechnologyNirjuliArunachal Pradesh791109India

The analytical lower bound of Spectral Efficiency(SE)of downlink transmission of the Massive Multiple Input Multiple Output(Ma-MIMO)system is *** this paper,we derive some novel and approximate mathematical expressions for the lower bound of the SE of a Ma-MIMO with linear precoding schemes,i.e.,Minimum Mean Square Error(MMSE)and Zero-Forcing(ZF).For simulation analysis of the SE,we consider three joint users and antenna scheduling algorithms,namely,the semi-orthogonal,random,and distance-based user scheduling algorithms,whereas the antennas are selected based on Maximum Signal to Noise Ratio(MSNR)with scheduled *** channel between the user and the transmitter is assumed to have characteristics of Small Scale Fading(SSF)and Large Scale Fading(LSF)with the Rayleigh fading *** investigate the effect of the variation of transmitting SNR,the number of base station antennas(M),and the radius(R)of the cell area on the *** simulate the downlink transmission of Ma-MIMO and compare the simulation and analytical *** is observed that the trends of variation of both results are similar to the variation of identical factors,and the difference between the simulated and analytical lower bounds of the SE is approximately 1-1.5 *** analytical lower bound is smaller than the simulation result.

关键词： Fifth-generation Spectral efficiency Ma-MIMO LSF coefficient Precoding

Alginate encapsulation in Glycyrrhiza glabra *** phyto-chemical profiling of root extracts of in vitro converted plants using GC-MS analysis

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Asian Pacific Journal of Tropical Biomedicine 2017年第10期7卷 855-861页

作者： Rakhshanda Akhtar anwar Shahzad Plant Biotechnology Section Department of BotanyAligarh Muslim UniversityAligarh 202002Uttar PradeshIndia

Objective: To investigate the conversion potential of alginate encapsulated nodes of Glycyrrhiza glabra with phyto-chemical evaluation of root extract of field transferred ***: The excised axenic nodal segments were encapsulated in alginate matrix planted on Murashige and Skoog(1962) medium with different supplementation and formulations of PGRs. The two year old field transferred plants were evaluated for phytocompounds analysis using GC-MS ***: Varied responses were observed during the study, maximum conversion95.83% ± 2.40% was obtained in these encapsulates when planted on MS medium containing 2.5 m M Kinetin and 0.5 m M a-Naphthalene acetic acid, which eventually developed into complete plantlets in a single step. Further, GC-MS analysis showed the presence of different phyto-compounds in the methanolic root extracts of in vitro converted plants. The results obtained revealed the presence of about 47 phyto-compounds along with various potential bioactive compounds useful for industrial and pharmaceutical ***: This study investigates high frequency regeneration and conversion of Glycyrrhiza glabra in a single step in short time. Also, the in vitro raised plants are analysed for bioactive compounds after field transfer, which shows the presence of numerous compounds useful for commercial and pharmacological purposes.

关键词： Synseeds Conservation Licorice Morphogenic Chemopreventive

Automated Video Generation of Moving Digits from Text Using Deep Deconvolutional Generative Adversarial Network

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Computers, Materials & Continua 2023年第11期77卷 2359-2383页

作者： anwar Ullah Xinguo Yu Muhammad Numan National Engineering Research Center for E-Learning Central China Normal UniversityWuhan430079China Wollongong Joint Institute Central China Normal UniversityWuhan430079China

Generating realistic and synthetic video from text is a highly challenging task due to the multitude of issues involved,including digit deformation,noise interference between frames,blurred output,and the need for temporal coherence across *** this paper,we propose a novel approach for generating coherent videos of moving digits from textual input using a Deep Deconvolutional Generative Adversarial Network(DD-GAN).The DDGAN comprises a Deep Deconvolutional Neural Network(DDNN)as a Generator(G)and a modified Deep Convolutional Neural Network(DCNN)as a Discriminator(D)to ensure temporal coherence between adjacent *** proposed research involves several ***,the input text is fed into a Long Short Term Memory(LSTM)based text encoder and then smoothed using Conditioning Augmentation(CA)techniques to enhance the effectiveness of the Generator(G).Next,using a DDNN to generate video frames by incorporating enhanced text and random noise and modifying a DCNN to act as a Discriminator(D),effectively distinguishing between generated and real *** research evaluates the quality of the generated videos using standard metrics like Inception Score(IS),Fréchet Inception Distance(FID),Fréchet Inception Distance for video(FID2vid),and Generative Adversarial Metric(GAM),along with a human study based on realism,coherence,and *** conducting experiments on Single-Digit Bouncing MNIST GIFs(SBMG),Two-Digit Bouncing MNIST GIFs(TBMG),and a custom dataset of essential mathematics videos with related text,this research demonstrates significant improvements in both metrics and human study results,confirming the effectiveness of *** research also took the exciting challenge of generating preschool math videos from text,handling complex structures,digits,and symbols,and achieving successful *** proposed research demonstrates promising results for generating coherent videos from textual input.

关键词： Generative Adversarial Network(GAN) deconvolutional neural network convolutional neural network Inception Score(IS) temporal coherence Fréchet Inception Distance(FID) Generative Adversarial Metric(GAM)

Four-Step Iteration Scheme to Approximate Fixed Point for Weak Contractions

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Computers, Materials & Continua 2020年第9期64卷 1491-1504页

作者： Wasfi Shatanawi anwar Bataihah Abdalla Tallafha Department of Mathematics and General Courses Prince Sultan UniversityRiyadh11586Saudi Arabia Department of Medical Research China Medical University HospitalChina Medical UniversityTaichung40402Taiwan Department of M-Commerce and Multimedia Applications Asia UniversityTaichung41354Taiwan Department of Mathematics School of ScienceThe University of JordanAmman11942Jordan

Fixed point theory is one of the most important subjects in the setting of metric spaces since fixed point theorems can be used to determine the existence and the uniqueness of solutions of such mathematical *** is known that many problems in applied sciences and engineering can be formulated as functional *** equations can be transferred to fixed point theorems in an easy ***,we use the fixed point theory to prove the existence and uniqueness of solutions of such integral and differential *** X be a non-empty set.A fixed point for a self-mapping T on X is a point𝑒𝑒∈𝑋𝑋that satisfying T e=*** of the most challenging problems in mathematics is to construct some iterations to faster the calculation or approximation of the fixed point of such *** mathematicians constructed and generated some new iteration schemes to calculate or approximate the fixed point of such problems such as Mann et al.[Mann(1953);Ishikawa(1974);Sintunavarat and Pitea(2016);Berinde(2004b);Agarwal,O’Regan and Sahu(2007)].The main purpose of the present paper is to introduce and construct a new iteration scheme to calculate or approximate the fixed point within a fewer number of steps as much as we *** prove that our iteration scheme is faster than the iteration schemes given by Sintunavarat et al.[Sintunavarat and Pitea(2016);Agarwal,O’Regan and Sahu(2007);Mann(1953);Ishikawa(1974)].We give some numerical examples by using MATLAB to compare the efficiency and effectiveness of our iterations scheme with the efficiency of Mann et al.[Mann(1953);Ishikawa(1974);Sintunavarat and Pitea(2016);Abbas and Nazir(2014);Agarwal,O’Regan and Sahu(2007)]***,we introduce a problem raised from Newton’s law of cooling as an application of our new iteration ***,we support our application with a numerical example and figures to illustrate the validity of our iterative scheme.

关键词： Weak contraction fixed point iteration scheme mean value theorem

Seismic fragility assessment of load‐bearing soft‐brick unreinforced masonry piers

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Journal of Safety Science and Resilience 2022年第4期3卷 277-287页

作者： Jayaprakash Vemuri Tariq anwar KVL Subramaniam Department Of Civil Engineering École Centrale School of EngineeringMahindra UniversityTelangana 500043India Department of Earth Science and Engineering(ErSE) King Abdullah University of Science and TechnologyThuwal23955-6900Saudi Arabia Department of Civil Engineering Indian Institute of Technology HyderabadTelangana 502285India

Unreinforced masonry(URM)made with soft bricks comprises a large percentage of the building stock in devel-oping ***,the poor performance of URM piers during earthquakes has led to renewed interest in understanding their behavior under lateral *** experimental data is available on the seismic response,analysis,and design of URMs made of soft *** this study,the micro-modeling technique is used to simulate the in-plane behavior of load-bearing,soft-brick URM *** parameters required in the constitutive models are obtained from material tests and used to develop a calibrated numerical model of the URM *** with various aspect ratios subjected to various axial stresses are numerically modeled to obtain monotonic and cyclic responses,and their critical displacement limit states are *** in the failure modes of masonry piers with variations in the aspect ratio and axial stress are ***-bearing piers exhibit three distinct failure modes:bed sliding,diagonal shear cracking,and flexure,depending on the aspect ratio and axial *** seismic fragility of each pier failure type is examined using nonlinear time history *** results show that bed-sliding piers collapse at extremely low PGA *** failing through diagonal shear cracking also fail at low PGA *** piers can resist seismic forces up to a slightly higher PGA level and thus are the last to *** results also indicate that the effect of uncertainty in ground motions is more significant than the effect of variability in the masonry pier capacities.

关键词： Unreinforced masonry Soft brick Micro-modeling Nonlinear time history analyses Synthetic ground motions Seismic fragility