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Sludge granulation and efficiency of phase separator in UASB reactor treating combined industrial effluent

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Journal of Environmental Sciences 2007年第5期19卷 553-558页

作者： Abdullah Yasar Nasir Ahmad Muhammad Nawaz Chaudhry aamir amanat ali khan Directorate of Research and Development University of the Punjab41-Kamran BlockAllama Iqbal TownLahore-Pakistan.

Sludge granulation and the effect of gas-liquid-solid separator （GLSS） design on the efficiency of upflow anaerobic sludge blanket （UASB） and upflow anaerobic sludge filter （UASF） reactors, operating at HRTs ranging from 3 to 12 h was investigated. VSS/TS ratio gradually increased in both the reactors with increasing sludge age （from 0.5 to more than 0.7 for UASB reactor and 0.012 to 0.043 for UASF reactor）. X-Ray diffraction analysis of the UASF sludge showed the presence of expanding clays revealing its additional absorption capability. Fuoraphyllite and albite precipitation related to excellular polymers of the microbial shell structure, showed the extended growth of microorganisms during sludge granulation. A gradual decrease （82%-69%） in COD removal with decreasing HRT was apparent in UASF reactor. In case of UASB reactor, this decrease was marginal because addition of GLSS device significantly improved （14%-20%） the overall efficiency of the UASB reactor. GLSS enhanced the efficiency of the UASB reactor by increasing the settleability of suspended particles and accelerating the coagulation of colloidal particles due to the velocity gradient.

关键词： sludge granulation gas-liquid-solid (GLS) phase separator UASB microbial growth

Fingerprint matching,spoof and liveness detection:classification and literature review

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Frontiers of Computer Science 2021年第1期15卷 179-196页

作者： Syed Farooq ali Muhammad aamir khan Ahmed Sohail ASLAM Department of Software Engineering University of Management and TechnologyLahore 54770Pakistan Department of Informatics and Systems University of Management and TechnologyLahore 54770Pakistan Department of Computer Science University of Management and TechnologyLahore 54770Pakistan

Fingerprint matching,spoof mitigation and liveness detection are the trendiest biometric techniques,mostly because of their stability through life,uniqueness and their least risk of *** recent decade,several techniques are presented to address these challenges over well-known *** study provides a comprehensive review on the fingerprint algorithms and techniques which have been published in the last few *** divides the research on fingerprint into nine different approaches including feature based,fuzzy logic,holistic,image enhancement,latent,conventional machine learning,deep learning,template matching and miscellaneous *** these,deep learning approach has outperformed other approaches and gained significant attention for future *** reviewing fingerprint literature,it is historically divided into four eras based on 106 referred papers and their cumulative citations.

关键词： computer society template matching fingerprint recognition survey deep learning machine learning

Computing and Implementation of a Controlled Telepresence Robot

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Intelligent Automation & Soft Computing 2023年第8期37卷 1569-1585页

作者： ali A.Altalbe aamir Shahzad Muhammad Nasir khan Prince Sattam Bin Abdulaziz University Al-Kharj11942Saudi Arabia Faculty of Computing and Information Technology King Abdulaziz UniversityJeddah21589Saudi Arabia Department of Mechanical Engineering The University of LahoreLahore54000Pakistan Department of Electrical Engineering GC University LahoreLahore54000Pakistan

The development of human-robot interaction has been continu-ously increasing for the last *** this development,it has become simpler and safe interactions using a remotely controlled telepresence robot in an insecure and hazardous *** audio-video communication connection or data transmission stability has already been well handled by fast-growing technologies such as 5G and ***,the design of the phys-ical parameters,e.g.,maneuverability,controllability,and stability,still needs ***,the paper aims to present a systematic,controlled design and implementation of a telepresence mobile *** primary focus of this paper is to perform the computational analysis and experimental implementa-tion design with sophisticated position control,which autonomously controls the robot’s position and speed when reaching an obstacle.A system model and a position controller design are developed with root locus *** design robot results are verified experimentally,showing the robot’s agreement and control in the desired *** robot was tested by considering various parameters:driving straight ahead,right turn,self-localization and complex *** results prove that the proposed approach is flexible and adaptable and gives a better *** experimental results show that the proposed method significantly minimizes the obstacle hits.

关键词： Computing telepresence healthcare system position controller mobile robot

Thermophoresis and concentration effects in a fourth grade peristaltic flow with convective walls

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Journal of Central South University 2017年第7期24卷 1654-1662页

作者： ali aamir Asghar S Awais M Department of Mathematics COMSATS Institute of Information TechnologyAttock 43600Pakistan Department of Mathematics COMSATS Institute of Information TechnologyIslamabad 44000Pakistan Department of Mathematics King Abdulaziz UniversityJeddah 21432Saudi Arabia

In this investigation,we have studied the peristaltic fluid flow in an asymmetric channel with convective *** grade fluid model has been utilized in view of the fact that the results of all other differential type models can be deduced as the special *** effects of heat and mass transfer are *** thermophoresis effects occur in the energy *** heat and mass boundary conditions have been given special *** wave length and low Reynolds number approximations are utilized for the *** analytic solutions for the velocity,temperature and concentration profiles are calculated using perturbation technique and elaborated in the form of graphical observations for various physical quantities.

关键词： fourth grade fluid convective boundary conditions pumping and trapping peristalsis

Existence of a Hartmann layer in the peristalsis of Sisko fluid

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Chinese Physics B 2014年第5期23卷 368-372页

作者： Saleem Asghar Tayyaba Minhas aamir ali Department of Mathematics COMSATS Institute of Information Technology Department of Mathematics King Abdul Aziz University CNRS UMR 7351 Laboratoire Jean Alexandre DieudonneUniversite de Nice Sophia Antipolis

Analytical solutions for the peristaltic flow of a magneto hydrodynamic （MHD） Sisko fluid in a channel, under the effects of strong and weak magnetic fields, are presented. The governing nonlinear problem, for the strong magnetic field, is solved using the matched asymptotic expansion. The solution for the weak magnetic field is obtained using a regular perturbation method. The main observation is the existence of a Hartman boundary layer for the strong magnetic field at the location of the two plates of the channel. The thickness of the Hartmann boundary layer is determined analytically. The effects of a strong magnetic field and the shear thinning parameter of the Sisko fluid on the velocity profile are presented graphically.

关键词： magneto hydrodynamic Sisko fluid asymmetric channel Peristaltic flow non-Newtonian fluid

Computing of LQR Technique for Nonlinear System Using Local Approximation

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Computer Systems Science & Engineering 2023年第7期46卷 853-871页

作者： aamir Shahzad ali Altalbe Mechanical Engineering Department The University of LahoreLahorePakistan Faculty of Computing and Information Technology King Abdulaziz UniversityJeddah80258Saudi Arabia

The main idea behind the present research is to design a state-feedback controller for an underactuated nonlinear rotary inverted pendulum module by employing the linear quadratic regulator(LQR)technique using local *** LQR is an excellent method for developing a controller for nonlinear *** provides optimal feedback to make the closed-loop system robust and stable,rejecting external ***-based optimal controller for a nonlinear system such as a rotatory inverted pendulum has not been designed and implemented using Newton-Euler,Lagrange method,and local ***,implementing LQR to an underactuated nonlinear system was vital to design a stable controller.A mathematical model has been developed for the controller design by utilizing the Newton-Euler,Lagrange *** nonlinear model has been linearized around an equilibrium *** and nonlinear models have been compared to find the range in which linear and nonlinear models’behaviour is *** LQR function and system dynamics have been used to estimate the controller *** the performance evaluation of the designed controller,Simulink has been *** and nonlinear models have been simulated along with the designed *** have been performed for the designed controller over the linear and nonlinear system under different conditions through varying system *** results show that the system is stable and robust enough to act against external *** controller maintains the rotary inverted pendulum in an upright position and rejects disruptions like falling under gravitational force or any external disturbance by adjusting the rotation of the horizontal link in both linear and nonlinear environments in a specific *** controller has been practically designed and *** is vivid from the results that the controller is robust enough to reject the disturbances in milliseconds and keeps the pendulum

关键词： Computing rotary inverted pendulum(RIP) modeling and simulation linear quadratic regulator(LQR) nonlinear system

Optimal Site and Size of Distributed Generation Allocation in Radial Distribution Network Using Multi-objective Optimization

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Journal of Modern Power Systems and Clean Energy 2021年第2期9卷 404-415页

作者： aamir ali M.U.Keerio J.A.Laghari the Department of Electrical Engineering Quaid-E-Awam University of Engineering Science and TechnologyNawabshahPakistan

Distributed generation(DG)allocation in the distribution network is generally a multi-objective optimization *** maximum benefits of DG injection in the distribution system highly depend on the selection of an appropriate number of DGs and their capacity along with the best *** this paper,the improved decomposition based evolutionary algorithm(I-DBEA)is used for the selection of optimal number,capacity and site of DG in order to minimize real power losses and voltage deviation,and to maximize the voltage stability *** proposed I-DBEA technique has the ability to incorporate non-linear,nonconvex and mixed-integer variable problems and it is independent of local extrema *** order to validate the effectiveness of the proposed technique,IEEE 33-bus,69-bus,and 119-bus standard radial distribution networks are ***,the choice of optimal number of DGs in the distribution system is also *** simulation results of the proposed method are compared with the existing *** comparison shows that the proposed method has the ability to get the multi-objective optimization of different conflicting objective functions with global optimal values along with the smallest size of DG.

关键词： Distribution system distributed generation multi-objective optimization active power loss improved decomposition based evolutionary algorithm(I-DBEA)

Structural Analysis of the SARS-CoV-2 Omicron Variant Proteins

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Research 2021年第2期2021卷 759-762页

作者： Qiangzhen Yang ali Alamdar Shah Syed aamir Fahira Yongyong Shi Bio-X Institutes Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders(Ministry of Education)Shanghai Jiao Tong University1954 Huashan RoadShanghai 200030China Biomedical Sciences Institute of Qingdao University(Qingdao Branch of SJTU Bio-X Institutes) Qingdao UniversityQingdao 266003China Shanghai Key Laboratory of Psychotic Disorders Shanghai Mental Health CenterShanghai Jiao Tong University School of MedicineShanghai 200030China Shanghai Key Laboratory of Sleep Disordered Breathing Shanghai Jiao Tong University Affiliated Sixth People’s HospitalShanghaiChina The First Affiliated Hospital of Zhengzhou University Zhengzhou 450052China Department of Psychiatry First Teaching Hospital of Xinjiang Medical UniversityUrumqi830046China

The spread of the latest SARS-CoV-2 variant Omicron is particularly concerning because of the large number of mutations present in its genome and lack of knowledge about how these mutations would affect the current SARS-CoV-2 vaccines and ***,by performing phylogenetic analysis using the Omicron spike(S)protein sequence,we found that the Omicron S protein presented the longest evolutionary distance in relation to the other SARS-CoV-2 *** predicted the structures of S,M,and N proteins of the Omicron variant using AlphaFold2 and investigated how the mutations have affected the S protein and its parts,S1 NTD and RBD,in *** found many amino acids on RBD were mutated,which may influence the interactions between the RBD and ACE2,while also showing the S309 antibody could still be capable of neutralizing Omicron *** Omicron S1 NTD structures display significant differences from the original strain,which could lead to reduced recognition by antibodies resulting in potential immune escape and decreased effectiveness of the existing ***,this study of the Omicron variant was mainly limited to structural predictions,and these findings should be explored and verified by subsequent *** study provided basic data of the Omicron protein structures that lay the groundwork for future studies related to the SARS-CoV-2 Omicron variant.

关键词： concerning subsequent neutral

In vitro-in vivo correlation study on nimesulide loaded hydroxypropylmethylcellulose microparticles

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药学学报 2010年第6期45卷 772-777页

作者： Shujaat ali khan Mahmood AHMAD Ghulam MURTAZA Muhammad Naeem aamir Rozina KOUSAR Fatima RASOOL Shahiq-u-ZAMAN Faculty of Pharmacy & Alternative Medicine the Islamia University of Bahawalpur

This study involves mathematical simulation model such as in vitro-in vivo correlation(IVIVC) development for various extended release formulations of nimesulide loaded hydroxypropylmethylcellulose(HPMC) microparticles(M1,M2 and M3 containing 1,2,and 3 g HPMC,respectively and 1 g drug in each) having variable release *** vitro dissolution data of these formulations were correlated to their relevant in vivo absorption profiles followed by predictability worth analysis of these Level A *** was used as control formulation to validate developed formulations and their respective *** regression coefficients of IVIVC plots for M1,M2,M3 and Nimaran were 0.834 9,0.831 2,0.927 2 and 0.898 1,*** internal prediction error for all formulations was within limits,i.e.,<10%.A good IVIVC was found for controlled release nimesulide loaded HPMC floating M3 *** other words,this mathematical simulation model is best fit for biowaiver studies which involves study parameters as those adopted for M3 because the value of its IVIVC regression coefficient is the closest to 1 as compared to M1 and M2.

关键词： nimesulide modelling HPMC Wagner-Nelson method