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Sustainable bio-energy generation via the conversion of spent wash using dual chamber microbial fuel cell

Waste Disposal and Sustainable Energy 2024年第2期6卷 219-231页

作者： Abdul Sattar Jatoi Jawad Ahmed Afaque Ahmed Bhutto muhammad shuaib shaikh Department of Chemical Engineering Dawood University of Engineering and Technology KarachiSindhPakistan Changzhou DUBO Polymer Co. Ltd.Changzhou 213002China Department of Basic Science and Related Studies The University of LarkanoSindhPakistan Department of Chemical Engineering Mehran University of Engineering and Technology JamshoroSindhPakistan

Microbial fuel cells(MFCs)are innovative devices that combine microbial processes with electrochemical reactions to convert organic matter in wastewater into electricity while simultaneously treating the *** such application is the treatment of spent wash,a highly polluting effluent generated from the distillery industry after crude mesh is separated into ethanol and spent *** wash,also known as distillery effluent or stillage,is a highly challenging wastewater treatment method due to its high chemical oxygen demand(COD),biological oxygen demand(BOD),and total dissolved solids(TDS).These characteristics make it a complex and polluting industrial effluent that requires specialized treatment processes to reduce its environmental impact ***,MFCs have shown promise in treating spent wash,as they can utilize the organic matter in wastewater as a fuel source for microbial growth as well as for electricity *** the treatment of spent wash,Saccharomyces cerevisiae *** used as a biocatalyst along with 340 mol/L potassium ferricyanide in the cathode chamber and 170 mol/L methylene blue in the anode as a *** tests were conducted by balancing a one-liter volume for power production from spent wash in MFC with the optimal conditions of 10%agarose,pH 8.5,300 mL/min of aeration in the cathode chamber,and 40%(in weight)substrate *** an ideal concentration,the maximum current and power density are roughly 53.41 mA/m^(2)and 72.22 mW/m^(2),*** each litre of processed spent wash,a maximum voltage of 850 mV(4.5 mA)was ***,91%of COD and BOD were removed from the effluent *** findings show that MFCs are capable of producing electricity and efficiently removing COD from wasted wash at the same time.

关键词： Microbial fuel cell Chemical oxygen demand Biological oxygen demand-Current density Power density Spent wash

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Experimental studies and artificial neural network modeling of surface tension of aqueous sodium L-prolinate solutions and piperazine blends

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Chinese Journal of Chemical Engineering 2019年第8期27卷 1904-1911页

作者： muhammad shuaib shaikh A.M.Shariff M.A.Bustam Sahil Garg Khadija Qureshi Pervez Hameed shaikh Inamullah Bhatti Department of Chemical Engineering Mehran University of Engineering&Technology JamshoroSindh 76062Pakistan CO2 Research Centre(CO2RES) Universiti Teknologi PETRONASBandar Seri Iskandar 32610PerakMalaysia School of Chemical Engineering The University of QueenslandSt Lucia 4072Australia Office of Research Innovation and Commercialization(ORIC) Mehran University of Engineering&Technology JamshoroSindh 76062Pakistan

The surface tension study is very crucial for the design of CO2 gas absorption contacting equipment. The significance of the surface tension has been increasing due to its consideration in various technological fields. This property influences the mass transfer and hydrodynamics of gas absorption systems, mainly multiphase systems, in which the interface between gas and liquid exists. Therefore, in this study, surface tension of aqueous solutions of sodium L-prolinate(SP) and piperazine(PZ) blends were measured at ten different temperatures from(298.15 to 343.15) K. The SP mass fractions were 0.10, 0.20, and 0.30;while the mass fractions of PZ were 0.02 and 0.05. The experimental results showed that the surface tension increase with increasing the mass fractions of SP and PZ in aqueous blends, and decrease linearly with rising temperature. The experimental data of surface tension were correlated by two empirical correlations as a function of temperature and mass fractions for estimating the predicted data using the optimized correlation coefficients. Moreover, the modeling of surface tension data was carried out using Artificial Neural Network(ANN) approach. The results obtianed from ANN modeling were compared with applied empirical correlation. It was found that the ANN approach outperformed the empirical correlation used in this study. Besides, a quantitative analysis of variation(ANOVA) was performed in order to determine the significance of data. The surface tension of aqueous SP and SP + PZ was also compared with various conventional solvents.

关键词： Surface tension L-Prolinate Piperazine Correlation Prediction Neural network

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Physicochemical properties of aqueous solutions of sodium glycinate in the non-precipitation regime from 298.15 to 343.15 K

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Chinese Journal of Chemical Engineering 2015年第3期23卷 536-540页

作者： muhammad shuaib shaikh Azmi Mohd Shariff Mohd Azmi Bustam Ghulam Murshid Research Center for CO_2 Capture(RCCO_2C) Department of Chemical EngineeringUniversiti Teknologi PETRONAS

The physicochemical properties,including the density,viscosity,and refractive index of aqueous solutions of sodium glycinate as a solvent for CO_2 absorption in the non-precipitation regime were measured under the wide temperature range of 298.15 to 343.15 *** concentration of the sodium glycinate in an aqueous form in the non-precipitation regime was identified up to 2.0 mol ? L^(-1).The coefficients of thermal expansion values were estimated from measured density *** was found that,the densities,viscosities and refractive indices of the aqueous sodium glycinate decrease with an increase in temperature,whereas with increasing sodium glycinate concentration in the solution,all three properties *** expansion coefficients slightly increase with rising temperature and *** measured values of density,viscosity and refractive index were correlated as a function of temperature by using the least squares *** predicted data obtained from correlation equations for all measured properties were in fairly good agreement with the experimental data.

关键词： Sodium glycinate Physicochemical property Density Viscosity Refractive index

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Robust design of sliding mode control for airship trajectory tracking with uncertainty and disturbance estimation

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Journal of Systems Engineering and Electronics 2024年第1期35卷 242-258页

作者： WASIM muhammad ALI Ahsan CHOUDHRY Mohammad Ahmad shaikh Inam Ul Hasan SALEEM Faisal Department of Aeronautics and Astronautics Engineering Institute of Space TechnologyIslamabad 44000Pakistan Department of Electrical Engineering University of Engineering and TechnologyTaxila 47080Pakistan Department of Measurements and Control Systems Silesian University of TechnologyGliwice 44-101Poland The Joint Doctoral School Silesian University of TechnologyGliwice 44-100Poland

The robotic airship can provide a promising aerostatic platform for many potential *** applications require a precise autonomous trajectory tracking control for *** has a nonlinear and uncertain *** is prone to wind disturbances that offer a challenge for a trajectory tracking control *** paper addresses the airship trajectory tracking problem having time varying reference path.A lumped parameter estimation approach under model uncertainties and wind disturbances is opted against distributed *** uses extended Kalman filter(EKF)for uncertainty and disturbance *** estimated parameters are used by sliding mode controller(SMC)for ultimate control of airship trajectory *** comprehensive algorithm,EKF based SMC(ESMC),is used as a robust solution to track airship *** proposed estimator provides the estimates of wind disturbances as well as model uncertainty due to the mass matrix variations and aerodynamic model *** stability and convergence of the proposed method are investigated using the Lyapunov stability *** simulation results show that the proposed method efficiently tracks the desired *** method solves the stability,convergence,and chattering problem of SMC under model uncertainties and wind disturbances.

关键词： airship chattering extended Kalman filter(EKF) model uncertainties estimation sliding mode controller(SMC)

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Social Media-Based Surveillance Systems for Health Informatics Using Machine and Deep Learning Techniques:A Comprehensive Review and Open Challenges

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Computer Modeling in Engineering & Sciences 2024年第5期139卷 1167-1202页

作者： Samina Amin muhammad Ali Zeb Hani Alshahrani Mohammed Hamdi Mohammad Alsulami Asadullah shaikh Institute of Computing Kohat University of Science and TechnologyKohat26000Pakistan Department of Computer Science College of Computer Science and Information SystemsNajran UniversityNajran61441Saudi Arabia Department of Information System College of Computer Science and Information SystemsNajran UniversityNajran61441Saudi Arabia

Social media(SM)based surveillance systems,combined with machine learning(ML)and deep learning(DL)techniques,have shown potential for early detection of epidemic *** review discusses the current state of SM-based surveillance methods for early epidemic outbreaks and the role of ML and DL in enhancing their ***,every year,a large amount of data related to epidemic outbreaks,particularly Twitter data is generated by *** paper outlines the theme of SM analysis for tracking health-related issues and detecting epidemic outbreaks in SM,along with the ML and DL techniques that have been configured for the detection of epidemic *** has emerged as a promising ML technique that adaptsmultiple layers of representations or features of the data and yields state-of-the-art extrapolation *** recent years,along with the success of ML and DL in many other application domains,both ML and DL are also popularly used in SM *** paper aims to provide an overview of epidemic outbreaks in SM and then outlines a comprehensive analysis of ML and DL approaches and their existing applications in SM ***,this review serves the purpose of offering suggestions,ideas,and proposals,along with highlighting the ongoing challenges in the field of early outbreak detection that still need to be addressed.

关键词： Social media epidemic machine learning deep learning health informatics pandemic

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A Critical Review of Community Resilience Building Framework: Contexts of Climate Change and Disasters in Bangladesh

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Journal of Geoscience and Environment Protection 2024年第9期12卷 315-334页

作者： Abdul Alim shaikh Mousumi Halder muhammad Ramzan Ali Ruhul Amin Md Saifur Rahman Md. Kamruzzaman Khulna University Khulna Bangladesh Climate Change Program Christian Commission for Development in Bangladesh (CCDB) Dhaka Bangladesh International Rescue Committee-UK Coxs Bazar Bangladesh Tropical and International Forestry Technical University Dresden Cotta Bau Pienner Strae 7 01737 Tharandt Germany Forestry and Wood Technology Discipline Khulna University Khulna Bangladesh

The concept of community resilience in the contexts of climate change and disasters draws increasing attention and interest from practitioners and researchers in recent development discourse. This paper provides a critical review of six selected frameworks of community resilience building operationalized in Bangladesh over the span of years. In other words, this study aims to contribute to the understanding of resilience through a systematic analysis of the dimensions and indicators of community resilience frameworks. The analysis shows that comprehensive and effective community resilience frameworks should incorporate the missing components linked to fundamental elements of good governance, economic growth, environmental sustainability, social transformation, and capacity development. The paper concludes by highlighting a few other areas of grave concern that need more appropriate attention, considering the severe threats posed by climate change and natural disasters in line with sustainable development goals. Finally, this study recommends further research regarding the effectiveness of these frameworks in different climatic and disaster contexts that can lead the concept into a new dimension of community resilience and sustainability.

关键词： Community Resilience Resilience Building Framework Resilience Indicators Climate Change Disaster Bangladesh

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Fractional Analysis of Viscous Fluid Flow with Heat and Mass Transfer Over a Flexible Rotating Disk

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Computer Modeling in Engineering & Sciences 2020年第4期123卷 377-400页

作者： muhammad shuaib muhammad Bilal muhammad Altaf Khan Sharaf J.Malebary Department of Mathematics City University of Science and Information TechnologyPeshawarPakistan Institute for Groundwater Studies Faculty of Natural and Agricultural SciencesUniversity of the Free StateBloemfonteinSouth Africa Department of Information Technology Faculty of Computing and Information TechnologyKing Abdulaziz UniversityRabighSaudia Arabia

An unsteady viscous fluid flow with Dufour and Soret effect,which results in heat and mass transfer due to upward and downward motion of flexible rotating disk,has been *** upward or downward motion of non rotating disk results in two dimensional flow,while the vertical action and rotation of the disk results in three dimensional *** using an appropriate transformation the governing equations are transformed into the system of ordinary differential *** system of ordinary differential equations is further converted into first order differential equation by selecting suitable ***,we generalize the model by using the Caputo *** numerical result for the fractional model is presented and validated with Runge Kutta order 4 method for classical *** compared results are presented in Table and *** is concluded that the fractional model is more realistic than that of classical one,because it simulates the fluid behavior at each fractional value rather than the integral values.

关键词： Caputo derivatives similarity transformation RK4 soret effect Dufour effect

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MWCNTs/SWCNTs Nanofluid Thin Film Flow over a Nonlinear Extending Disc: OHAM Solution

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Journal of Thermal Science 2019年第1期28卷 115-122页

作者： GOHAR TAZA Gul WARIS Khan muhammad shuaib muhammad Altaf Khan EBENEZER Bonyah Department of Mathematics University of Peshawar Department of Mathematics City University of Science and Information Technology Higher Education Department Khyber Pukhtunkhwa Department of Mathematics Islamia College Department of Mathematics Kumasi Techniical University

The aim of this research is the improvement towards the consumption of energy in the field of engineering and industry. The efforts have been paid to the enhancement of heat transmission and cooling process through a nanofluid coating of a nonlinear stretching disc. The combination of Water(H2 O) and multiple walled carbon nanotubes(MWCNT)/single walled carbon nanotubes(SWCNT) have been used as a nanofluid. The spreading of a thin nano-layer with variable thickness over a nonlinear and radially stretching surface has been considered. The estimated results of the problem have been accomplished using the Optimal Homotopy Analysis Method(OHAM). The residual errors of the OHAM method have been shown physically and numerically. The important physical parameters of skin friction and Nusselt number have been calculated and discussed. The other embedding parameters like generalized magnetic parameter, Prantl number, nanofluid volume fraction and Eckert number have been intended and discussed. The obtained results have been compared with the Numerical(ND-Solve) method for both sorts of CNTs. The closed agreement of both methods has been achieved.

关键词： CNTs-H2O based nanofluid variable thin layer nonlinear radially stretching disc magnetic field skin friction and Nusselt number OHAM & numerical method

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Incidence and predictors of hypocalcemia in end-stage renal disease patients on denosumab therapy: A systematic review and metaanalysis

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World Journal of Meta-Analysis 2024年第3期12卷 68-78页

作者： Abdul Hannan Siddiqui Misbah shaikh Afia Salman muhammad Ahmed Ali Fahim Fizzah Batool Tahreem Mari Sarah Musani Muneeb Fareed Rooma Rehan Amna Hassni Urooj Nizami Ayesha Amir Abdul Moeed Salim R Surani Department of Internal Medicine Dow University of Health SciencesKarachi 74200SindhPakistan Department of Medicine&Pharmacology Texas A&M UniversityCollege StationTX 77843United States

BACKGROUND Denosumab inhibits the receptor activator of nuclear factor *** markedly increases bone mineral density and has been proven to reduce the risk of ***,numerous adverse effects,notably hypocalcemia,are prevalent in patients with end-stage renal disease(ESRD).AIM To analyze the incidence and predictors of hypocalcemia caused by denosumab compared to control in patients with *** We conducted this study in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-analyses ***,Scopus,Cochrane Central,and EMBASE were systematically searched from inception through March *** original studies investigating the effects of denosumab on patients with ESRD compared to control were *** primary outcomes of our study were the incidence of mild,severe,and very severe *** outcomes included serum levels of intact parathyroid hormone,calcium,and *** results were pooled and analyzed using a random-effects *** Seven articles comprising 3240 patients were included in our *** treated with denosumab had a significantly increased incidence of mild hypocalcemia[risk ratio(RR):2.79;95%confidence interval(CI):0.99-7.91;P=0.05;I^(2)=37%]and of very severe hypocalcemia(RR:9.58;95%CI:1.58-57.98;P=0.01;I^(2)=49%).However,an increase in the occurrence of severe hypocalcemia was non-significant(RR:4.23;95%CI:0.47-38.34;P=0.20;I^(2)=96%).Alternatively,denosumab showed a significant decrease in serum intact parathyroid hormone[mean difference(MD):-433.20,95%CI:-775.12 to-91.28,I2=98%,P=0.01],while there was a non-significant decrease in phosphate(MD:-0.47,95%CI:-1.35 to 0.41,I^(2)=88%,P=0.30)and calcium levels(MD:-0.33,95%CI:-0.95 to 0.29,I^(2)=94%,P=0.29).CONCLUSION Our study demonstrated that denosumab is significantly associated with mild and very severe hypocalcemia in patients with ESRD making it necessary to detect and prevent this side effect of treatmen

关键词： Denosumab End-stage renal disease Hypocalcemia Parathyroid hormone Dialysis

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Distributed cooperative control of autonomous multi-agent UAV systems using smooth control

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Journal of Systems Engineering and Electronics 2020年第6期31卷 1297-1307页

作者： BELKACEM Kada MUNAWAR Khalid muhammad Shafique shaikh Department of Aerospace Engineering King Abdulaziz UniversityJeddah 21589Saudi Arabia Department of Electrical and Computer Engineering King Abdulaziz UniversityJeddah 21589Saudi Arabia

This paper addresses the cooperative control problem of multiple unmanned aerial vehicles(multi-UAV)***,a new distributed consensus algorithm for second-order nonlinear multi-agent systems(MAS)is formulated under the leader-following *** algorithm provides smooth input signals to the agents’control channels,which avoids the chattering effect generated by the conventional sliding mode-based control ***,a new formation control scheme is developed by integrating smooth distributed consensus control protocols into the geometric pattern model to achieve three-dimensional formation *** Lyapunov theory is used to prove the stability and convergence of both distributed consensus and formation *** effectiveness of the proposed algorithms is demonstrated through simulation results.

关键词： cooperative control distributed consensus three-dimensional formation control multiple-UAV system

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