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Applied mathematics and mechanics(English Edition) 2016年第2期37卷 215-226页

作者： S.AGARWAL P.rana Department of mathematics Amity Institute of Applied SciencesAmity University Department of mathematics Jaypee Institute of Information Technology

The onset of periodic and aperiodic convection in a binary nanofiuid satu- rated rotating porous layer is studied considering constant flux boundary conditions. The porous medium obeys Darcy＇s law, while the nanofluid envisages the effects of the Brow- nian motion and thermophoresis. The Rayleigh numbers for stationary and oscillatory convection are obtained in terms of various non-dimensional parameters. The effect of the involved physical parameters on the aperiodic convection is studied graphicmly. The results are validated in comparison with the published literature in limiting cases of the present study.

关键词： nanofluid rotating porous medium natural convection thermophoreticflux

Formation control of quad-rotor uAV via PIO

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Science China(Technological Sciences) 2022年第2期65卷 432-439页

作者： BAI TingTing WANG DaoBo mASOOD rana Javed College of Automation Engineering Nanjing University of Aeronautics and AstronauticsNanjing 211106China Department of Electrical Engineering Usman Institute of TechnologyKarachi 75850Pakistan

In this article, the formation control of quad-rotor unmanned aerial vehicle(uAV) via pigeon inspired optimization(PIO) is designed. The nonlinear mathematical model of the quad-rotor uAV is used by applying algebraic graph theory and matrix analysis. A high order consistent formation control algorithm with fixed control topology is designed by using a position deviation matrix to describe its formation. To control the attitude of quad-rotor uAVs, it is difficult to obtain a set of optimal solutions, and hence a PIO based algorithm with variable weight hybridization is proposed. The algorithm is mainly composed of two parts. First, according to the distance between the particles in the iterative process, the inertia weight is dynamically changed,and the coefficient is adjusted to control the degree of influence on its inertia weight. Second, the overall scenario is designed by using mATLAB based simulations which show that the formation control of the quad-rotor uAV is achieved with the help of PIO.

关键词： pigeon inspired optimization formation control unmanned aerial vehicle and quad-rotor uAV

An investigation of non-Newtonian fluid flow due to metachronal beating of cilia in a tube

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International Journal of Biomathematics 2015年第2期8卷 29-51页

作者： A. m. Siddiqui A. A. Farooq m. A. rana Department of mathematics Pennsylvania State University York Campus York PA 17403-3398 USA Department of Basic Sciences Riphah International University Islamabad 44000 Pakistan Department of mathematics COmSATS Institute of Information Technology Tobe Camp Abbottabad Pakistan

The aim of this study is to explain theoretically the role of ciliary motion on the transport of epididymal fluid through the ductus efferentes of the male reproductive track. For this purpose, a mathematical model has been developed for the flow of a non-Newtonian fluid in an axisymmetric tube due to metachronal wave of cilia motion for the more realistic consequences. Carreau viscous fluid model is considered to see the rheological effects on the pumping characteristics of the flow. Regular perturbation method has been employed to obtain the analytical expressions for the stream function, the velocity field and a relation between the pressure difference and the volume flow rate. It is found that the volume flow rate is influenced significantly by Weissenberg number We and the cilia length parameter ε. The computational results are presented graphically to see the effects of various physical parameters. Finally, the analysis is applied and compared with the observed value of the flow rate of spermatic fluid in the ductus efferentes of the male reproductive track. The volume flow rate is reported closed to the estimated value 6 × 10^-3 ml/h in the human ductus efferentes when We = 0.5 and e is near by 0.25.

关键词： Cilia-induced motion axisymmetric tube metachronal wave Carreau fluid analytic solutions pumping and trapping.

Biological and mechanical investigation of novel flax/silk protein-based nanofibrous scaffold for bone regeneration

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Progress in Natural Science:materials International 2022年第4期32卷 443-455页

作者： m.Rama u.Vijayalakshmi Department of Chemistry School of Advanced Sciences Vellore Institute of Technology

The process of bone tissue regeneration involves an intricate network of a biological macromolecules that includes proteins and peptides to support stimulation and healing response. Here, we have fabricated a novel flaxseed/silk fibroin based(dual protein) composite nanofibers using β-TCP to improve the biological properties and promote cartilage tissue regeneration along with a controllable rate of biodegradation. The physiochemical properties of PVA/β-TCP/FP:SF were characterized by FTIR, XRD, SEm, porosity, contact angle measurements and mechanical evaluation etc. This study demonstrates the biological performance of the developed nanofibers by using hemocompatibility, biodegradation ability, and apatite deposition in stimulated body fluid. moreover, the cell viability assay was performed on mG-63 osteoblast cells and long-term antibacterial rate against E. coli and S. aureus was analysed. Docking results of flax protein and silk fibroin protein further confirmed the stable modes of intramolecular bonding and the most stable electrostatic values using theoretical calculations. Taken together,the experimental results proved that the dual protein-based fibrous scaffold was found to be up-regulated in terms of biological activity with enhanced cell adhesion and proliferation.

关键词： Flax protein Silk fibroin β-TCP Electrospinning Docking Bone regeneration

Total Fragmentation Cross Section of 158A GeV Lead Projectiles in Cu Target

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Chinese Physics Letters 2008年第9期25卷 3208-3211页

作者： mukhtar Ahmed rana Shahid manzoor Physics Division Directorate of Science PINSTECH PO Nilore Islamabad Pakistan

Total fragmentation cross section for the reaction 158A Pb ions ＋ Cu target is measured using the most sensitive track detector CR-39. measured values are compared with calculations. Exposures of target-detector stack with 158A P5 projectiles are made at CERN-SPS beam facility. Results of calibration of CR-39 detector in a charge region （63 ≤ Z ≤ 83） are also reported, which can be used for high energy particle identification using CR-39 and in determination of partial charge changing cross sections. The charge resolution δz achieved by this technique is about 0.2e. A systematic dependence of total fragmentation cross section on target properties is revealed and the corresponding results are presented.

关键词： the power-law exponents precipitation durative abrupt precipitation change

A novel strategy for automatic test data generation using soft computing technique

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Frontiers of Computer Science 2015年第3期9卷 346-363页

作者： Priyanka CHAWLA Inderveer CHANA Ajay rana Computer Science and Engineering Department Thapar University Patiala 147004 India Amity School of Engineering Amity University Noida 201301 India

Software testing is one of the most crucial and analytical aspect to assure that developed software meets pre- scribed quality standards. Software development process in- vests at least 50% of the total cost in software testing process. Optimum and efficacious test data design of software is an important and challenging activity due to the nonlinear struc- ture of software. moreover, test case type and scope deter- mines the quality of test data. To address this issue, software testing tools should employ intelligence based soft comput- ing techniques like particle swarm optimization （PSO） and genetic algorithm （GA） to generate smart and efficient test data automatically. This paper presents a hybrid PSO and GA based heuristic for automatic generation of test suites. In this paper, we described the design and implementation of the proposed strategy and evaluated our model by performing ex- periments with ten container classes from the Java standard library. We analyzed our algorithm statistically with test ad- equacy criterion as branch coverage. The performance ade- quacy criterion is taken as percentage coverage per unit time and percentage of faults detected by the generated test data. We have compared our work with the heuristic based upon GA, PSO, existing hybrid strategies based on GA and PSO and memetic algorithm. The results showed that the test case generation is efficient in our work.

关键词： software testing particle swarm optimization,genetic algorithm soft computing test data generation

Glia-to-neuron reprogramming to the rescue?

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Neural Regeneration Research 2025年第5期20卷 1395-1396页

作者： Jack W.Hickmott Cindi m.morshead Department of Surgery University of TorontoTorontoONCanada Donnelly Centre for Cellular and Biomolecular Research TorontoONCanada Institute of Biomedical Engineering University of TorontoTorontoONCanada The KITE Research Institute Toronto Rehabilitation InstituteUniversity Health NetworkTorontoONCanada

Over the last two decades,the dogma that cell fate is immutable has been increasingly challenged,with important implications for regenerative *** brea kth rough discovery that induced pluripotent stem cells could be generated from adult mouse fibroblasts is powerful proof that cell fate can be *** exciting extension of the discovery of cell fate impermanence is the direct cellular reprogram ming hypothesis-that terminally differentiated cells can be reprogrammed into other adult cell fates without first passing through a stem cell state.

关键词： programming passing proof

molecular phylogeny,biogeography and character evolution of the montane genus Incarvillea Juss.(Bignoniaceae)

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Plant Diversity 2021年第1期43卷 1-14页

作者： Santosh Kumar rana Dong Luo Hum Kala rana Shaotian Chen Hang Sun CAS Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of SciencesKunming 650201China university of the Chinese Academy of Sciences Beijing 100049China College of Pharmaceutical Science Yunnan University of Chinese MedicineKunming 650500China

The complex orogeny of the Himalaya and the Qinghai-Tibet Plateau(QTP)fosters habitat fragmentation that drives morphological differentiation of mountain plant ***,determining phylogenetic relationships between plant subgenera using morphological characters is ***,we used both molecular phylogeny and historical biogeographic analysis to infer the ancestral states of several vegetative and reproductive characters of the montane genus *** determined the taxonomic position of the genus Incarvillea within its family and inferred the biogeographical origin of taxa through Bayesian inference(BI),maximum likelihood(mL)and maximum parsimony(mP)analyses using three molecular data sets(trnL-trnF sequences,nr ITS sequences,and a data set of combined sequences)derived from 81%of the total species of the genus *** the genus-level phylogenetic framework,we examined the character evolution of 10 key morphological characters,and inferred the ancestral area and biogeographical history of the *** analyses revealed that the genus Incarvillea is monophyletic and originated in Central Asia during mid-Oligocene ca.29.42 *** earliest diverging lineages were subsequently split into theWestern Himalaya and Sino-Himalaya during the early miocene ca.21.12 *** lineages resulted in five re-circumscribed subgenera(Amphicome,Olgaea,Niedzwedzkia,Incarvillea,and Pteroscleris).moreover,character mapping revealed the ancestral character states of the genus Incarvillea(e.g.,suffruticose habit,cylindrical capsule shape,subligneous capsule texture,absence of capsule wing,and loculicidal capsule dehiscence)that are retained at the earliest diverging ancestral nodes across the *** phylogenetic tree of the genus Incarvillea differs from previously proposed phylogenies,thereby recommending the placement of the subgenus Niedzwedzkia close to the subgenus Incarvillea and maintaining two main divergent lineages.

关键词： Biodiversity hotspots Biogeography Incarvillea molecular phylogeny Phytools Stochastic character mapping

Extraction,utilization Pattern and Prioritization of Fuel Resources for Conservation in manali Wildlife Sanctuary,Northwestern Himalaya

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Journal of mountain Science 2012年第4期9卷 580-588页

作者： man S.rana Sakshi B.rana S.S.SAmANT Department of Plant Sciences Government CollegeBanjar-Kullu175123Himachal PradeshIndia Department of Plant Sciences Government CollegeKullu175101Himachal PradeshIndia G.B.Pant Institute of Himalayan Environment&Development Himachal UnitMohal-Kullu175126Himachal PradeshIndia

Fuelwood is the main source of the energy in mountainous ***,annual wood consumption is very *** on fuelwood resources,and their extraction and availability is very ***,present study was carried out to study the diversity of fuelwood species,annual collection,preference and availability of fuel species in the *** four species(25 trees and 9 shrubs) were extracted for fuel by the *** collection and species preference was highest for Picea smithiana,Cedrus deodara,Indigofera heterantha,Pinus wallchiana and Sorbaria tomentosa,*** use index indicating use pressure was highest for ***,***,*** and Abies pindrow,*** native species,some non-native horticultural and agroforestry species such as malus pumila,***,Celtis australis,*** also being used as *** species showed their availability in eight forest types whereas,population and regeneration status was ***,immediate actions are suggested to sustain current and future demand of *** afforestation of degraded,uncultivated and marginal lands through high quality and preferred fuel species might reduce pressure on wild and selective species.

关键词： Fuelwood Resource use Index Communities Conservation

An Efficient Approach for Simulation of Water Levels due to the Nonlinear Interaction of Tide and Surge Along the Coast of Bangladesh

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China Ocean Engineering 2020年第4期34卷 537-546页

作者： Gour Chandra Paul Sukumar Senthilkumar rana Pria Department of mathematics University of RajshahiRajshahi-6205Bangladesh School of mathematical Sciences Universiti Sains MalaysiaPulau Pinang-11800Malaysia mathematics Discipline ScienceEngineering&Technology SchoolKhulna UniversityKhulna-9208.Bangladesh

The ultimate goal and highlight of this paper are to explore water levels along the coast of Bangladesh efficiently due to the nonlinear interaction of tide and surge by employing the method of lines(mOLs)with the aid of newly proposed RKAHem(4,4)*** this regard,the spatial derivatives of shallow water equations(SWEs)were discretized by means of a finite difference method to obtain a system of ordinary differential equations(ODEs)of initial valued with time as an independent *** obtained system of ODEs was solved by the RKAHem(4,4)***-way nested grid technique was exercised to incorporate coastal complexities closely with minimum computational cost.A stable tidal oscillation was produced over the region of interest by applying the most influential tidal constituent m2 along the southern open boundary of the outer *** newly developed model was applied to estimate water levels due to the non-linear interaction of tide and surge associated with the catastrophic cyclone April 1991 along the coast of *** approach employed in the study was found to perform well and ensure conformity with real-time observations.

关键词： method of lines RKAHem(4 4)technique error estimation storm surge nested grid