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Cointegration between macroeconomic factors and the exchange rate USD/CNY

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Financial Innovation 2019年第1期5卷 76-90页

作者： muhammad kamran khan Jian-Zhou Teng muhammad Imran khan School of Economics Northeast Normal UniversityChangchunJilinChina

This research paper investigates the effect of macroeconomic variables on the exchange rate USD/CYN using yearly time series data for China economy from 1980 to *** bounds test approach for cointegration is applied to test the long-run relation between the dependent and the independent *** results of long-run ARDL indicate that gross domestic product growth and trade openness have a positive effect on the exchange rate USD/CNY while interest and inflation rates have a negative effect on the exchange *** on the results of this study,it is recommended that the policymakers of the Chinese government should implement vital monetary and fiscal policies to determine the less volatile and productive exchange rate for China to manage sustainable economic growth for a long time with its trading partners.

关键词： Exchange rate Macroeconomic factors ARDL

Asymmetric nexus between commercial policies and consumption‑based carbon emissions:new evidence from Pakistan

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Financial Innovation 2023年第1期9卷 865-888页

作者： muhammad Zubair Chishti Hafiz Syed muhammad Azeem muhammad kamran khan School of Business Zhengzhou UniversityZhengzhouHenanChina School of Economics Quaid I Azam UniversityIslamabadPakistan Department of Economic University of ChakwalChakwalPunjabPakistan Ministry of Finance Government of PakistanIslamabadPakistan Management studies department Bahria Business SchoolBahria UniversityIslamabadPakistan

The current study extends the previous literature by exploring the effects of a newly discovered driver,i.e.,import taxes(as a proxy for commercial policies),on the consumption-based carbon emissions(CCO2e)for *** empirical analysis,several tests and methods,including Augmented Dickey–Fuller unit root test,Zivot–Andrews unit root test,asymmetric cointegration bound testing approach,non-linear ARDL,Wald-test,Granger causality test and wavelet quantile correlation(WQC)method are ***,NARDL technique estimates reveal that contractionary commercial policy enhances the environmental quality by disrupting the detrimental effects of ***,expansionary commercial policy escalates the environmental pollution by boosting the carbon ***,the exports and the renewable energy improve the ecological quality;however,GDP deteriorates the atmospheric quality by increasing the ***,WQC method and the trivariate Granger causality test are deployed to confirm the robustness of the *** on the findings,some crucial policies are also recommended for sustainable and green development in Pakistan.

关键词： Commercial policies Consumption-based carbon emissions Asymmetric ARDL Wavelet quantile correlation(WQC) Pakistan

Statistical and Geospatial Assessment of Groundwater Quality in the Megacity of Karachi

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Journal of Water Resource and Protection 2019年第3期11卷 311-332页

作者： muhammad kamran khan Waill Ayoub Sumayya Saied Mirza Muzammil Hussain Saiyada Shadiah Masood Azhar Siddique Haider Abbas Khwaja Department of Chemistry University of Karachi Karachi Pakistan Wadsworth Center New York State Department of Health Albany NY USA Department of Environmental Health Sciences School of Public Health University at Albany Albany NY USA Jinnah University for Women Karachi Pakistan Unit for Ain Zubaida Rehabilitation & Groundwater Research King Abdulaziz University Jeddah Saudi Arabia

Inserting Groundwater quality variability and sources potentially contributing to aquifer recharge was evaluated in metropolitan Karachi. Selected sampling sites were characterized by large waste dumping sites, industrial zones, and the presence of open streams receiving heavy loads of industrial and domestic wastes. Levels of pH, electrical conductivity (EC), fluoride (F-), chloride (Cl-), bromide (Br-), nitrate-N (NO-3-N), sulfate (SO2-4), sodium (Na+), potassium (K+), calcium (Ca2+), magnesium (Mg2+), and ammonium (NH+4) were determined and compared with the WHO permissible limits. Concentrations of the measured ions were in the order of Cl- > Na+ > SO2-4 > Mg2+ > Ca2+ > NO-3-N > K+ > F- > Br-. EC values were above the WHO guidelines, representing the presence of high ionic concentration in the groundwater. The health risk index (HRI) for indicated that inhabitants of Karachi are at risk of high exposure. Ingestion of high concentrations of NO-3-N in water can cause methemoglobinemia and birth defects. Results of multivariate statistical analysis, principal component analysis (PCA), cluster analysis (CA), and geographic information system (GIS) map analysis revealed that human activities are leading to adverse effects on the existing groundwater quality in Karachi.

关键词： Groundwater Karachi Water Quality Multivariate Analysis Geospatial Health Risk Index

Novel Fractal-Based Features for Low-Power Appliances in Non-Intrusive Load Monitoring

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Computers, Materials & Continua 2024年第7期80卷 507-526页

作者： Anam Mughees muhammad kamran Department of Electrical Engineering University of Engineering and Technology(UET)Lahore54890Pakistan Department of Electrical Engineering Government College UniversityFaisalabad38000Pakistan Department of Electrical Engineering and Technology Muhammad Nawaz Sharif University of Engineering&Technology(MNS UET)Multan60000Pakistan

Non-intrusive load monitoring is a method that disaggregates the overall energy consumption of a building to estimate the electric power usage and operating status of each appliance *** studies have mostly concentrated on the identification of high-power appliances like HVAC systems while overlooking the existence of low-power ***-power consumer appliances have comparable power consumption patterns,which can complicate the detection task and can be mistaken as *** research tackles the problem of classification of low-power appliances and uses turn-on current transients to extract novel features and develop unique appliance signatures.A hybrid feature extraction method based on mono-fractal and multi-fractal analysis is proposed for identifying low-power *** dimension,Hurst exponent,multifractal spectrum and the Hölder exponents of switching current transient signals are extracted to develop various‘turn-on’appliance signatures for *** classifiers,i.e.,deep neural network,support vector machine,decision trees,and K-nearest neighbours have been optimized using Bayesian optimization and trained using the extracted *** simulated results showed that the proposed method consistently outperforms state-of-the-art feature extraction methods across all optimized classifiers,achieving an accuracy of up to 96%in classifying low-power appliances.

关键词： Nonintrusive load monitoring multi-fractal analysis appliance classification switching transients

Electromechanical Fields and Their Influence on the Internal Quantum Efficiency of GaN-Based Light-Emitting Diodes

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Acta Mechanica Solida Sinica 2018年第3期31卷 383-390页

作者： muhammad Usman Kiran Saba Adnan Jahangir muhammad kamran Nazeer muhammad Department of Engineering Sciences Ghulam Ishaq Khan Institute of Engineering Sciences and Technology Swabi 23460 Pakistan Department of Mathematics COMSATS Institute of Information Technology Wah Cantt 47040 Pakistan Department of Electrical Engineering COMSATS Institute of Information Technology Wah Cantt 47040 Pakistan

The effect ofelectromechanical fields, i.e., polarization fields, on the efficiency droop of GaN-based light-emitting diodes is presented using both experimental and numerical analyses. The role of incorporating such polarization charge density in device performance is numerically investigated and further compared with the experimental results of internal quantum efficiency of three different devices in consideration.

关键词： Optoelectronic devices Photonic bandgap materials Visible and ultraviolet sources Light-emitting devices

Pore size distribution,their geometry and connectivity in deeply buried Paleogene Es1 sandstone reservoir,Nanpu Sag,East China

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Petroleum Science 2019年第5期16卷 981-1000页

作者： muhammad Kashif Yingchang Cao Guanghui Yuan muhammad Asif kamran Javed Jose Nicanor Mendez Danish khan Lin Miruo School of Geosciences China University of PetroleumQingdao 266580China Department of Earth Sciences University of SargodhaSargodha 40100Pakistan Institute of Geology University of the PunjabLahorePakistan

The study or pore characteristics is or great importance in reservoir evaluation,especially in deeply buried s *** controls the storage mechanism and reservoir fluid properties of the permeable *** first member of Eocene Shahejie Formation(Esl)sandstone is classified as feldspathic litharenite and lithic *** present research investigates the pore characteristics and reservoir features of the deeply buried sandstone reservoir of Esl member of Shahejie *** techniques including thin-section petrography,mercury injection capillary pressure(MICP),scanning electron microscopy and laser scanning confocal microscope images were used to demarcate the pores including primary intergranular pores and secondary intergranular,intragranular,dissolution and fracture *** injection test and routine core analysis were led to demarcate the pore network characteristics of the studied *** size and pore throat size distribution are acquired from mercury injection *** values range from 0.5%to 30%,and permeability ranges 0.006-7000 *** radii of coarse-grained sandstone and fine-grained sandstone range from 0.2 to>4μm and 1 nm to 1.60μm,respectively,by MICP *** mineral composition also plays an important role in protecting the pores with pressure from *** sandstone and coarse-grained sandstone consist of large and interconnected pores that enhance the reservoir porosity and permeability,whereas fine-grained sandstone and siltstone consist of numerous pores but not well interconnected,and so they consist of high porosity with low permeability.

关键词： Reservoir rock Pore characteristics Pore size distribution Pore throat Porosity Permeability

Heat Transfer Enhancement of an Automobile Engine Radiator using ZnO Water Base Nanofluids

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Journal of Thermal Science 2020年第4期29卷 1010-1024页

作者： muhammad QASIM muhammad SAJID kamran muhammad AMMAR muhammad ALI JAMAL muhammad YASAR JAVAID Department of Mechanical Engineering University of Engineering and TechnologyLahore 54890Pakistan Department of Chemical Engineering Technology Government College UniversityFaisalabad 38000Pakistan Department of Mechanical Engineering Technology Government College UniversityFaisalabad 38000Pakistan

In this research paper, the forced convective heat transfer enhancement of a Suzuki Mehran(VXR) 2016 radiator(heat exchanger) along with pressure drop and friction factor by utilizing Zinc oxide(Zn O) water based nanofluids has been experimentally studied. Three types of nanofluids with different volumetric concentrations of Zn O nanoparticles(0–0.3%) were employed in order to understand its effect on heat transfer enhancement. The experimental setup was completely designed as closely as possible to the car cooling system. The experimentation has been done under laminar flow conditions(186≤Re≤1127) at different fluid volume flow rates(2–12 L/min) and constant fluid inlet temperature(70°C) to the automobile radiator. A maximum enhancement in heat transfer rate, overall heat transfer coefficient and Nusselt number was obtained up to 41%, 50% and 31% by using nanofluid with 0.2% volumetric concentration of nanoparticles respectively. On the other hand, the mean enhancement in pressure drop and friction factor was obtained up to 47% and 46% by using nanofluid with the same volumetric concentration of nanoparticles i.e. 0.2% respectively. The experimental results also revealed that the heat transfer rate, overall heat transfer coefficient and Nusselt number of nanofluids increases by increasing the volume flow rates and volumetric concentration of nanoparticles. However, these thermal performance parameters of nanofluids started to decline when the volumetric concentration of nanoparticles was increased from 0.2% to 0.3%. Furthermore, pressure drop and friction factor of nanofluids increase by increasing the volumetric concentration of nanoparticles, while pressure drop increases and friction factor decreases by increasing the volume flow rate of nanofluids respectively. At the end, the thermal efficiency of automobile radiator with high cooling rates was obtained by using nanofluid with 0.2% volumetric concentration of nanoparticles.

关键词： ZnO nanoparticles heat transfer enhancement thermal efficiency automobile radiator

Gly-LysPred: Identification of Lysine Glycation Sites in Protein Using Position Relative Features and Statistical Moments via Chou’s 5 Step Rule

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Computers, Materials & Continua 2021年第2期66卷 2165-2181页

作者： Shaheena khanum muhammad Adeel Ashraf Asim Karim Bilal Shoaib muhammad Adnan khan Rizwan Ali Naqvi kamran Siddique Mohammed Alswaitti Department of Computer Science Lahore University of Management SciencesLahore54792Pakistan Department of Computer Science University of Management and TechnologyLahore54770Pakistan School of Computer Science Minhaj University LahoreLahore54770Pakistan Department of Computer Science Lahore Garrison UniversityLahore54000Pakistan Department of Unmanned Vehicle Engineering Sejong UniversitySeoulKorea Department of Information and Communication Technology School of Electrical and Computer EngineeringXiamen University MalaysiaSepang43900Malaysia

Glycation is a non-enzymatic post-translational modification which assigns sugar molecule and residues to a *** is a clinically important attribute to numerous age-related,metabolic,and chronic diseases such as diabetes,Alzheimer’s,renal failure,*** of a non-enzymatic reaction are quite challenging in *** identification in labs is a very costly and timeconsuming *** this research,we developed an accurate,valid,and a robust model named as Gly-LysPred to differentiate the glycated sites from non-glycated *** techniques using position relative features are used for feature *** algorithm named as a random forest with some preprocessing techniques and feature engineering techniques was developed to train a computational *** types of testing techniques such as self-consistency testing,jackknife testing,and cross-validation testing are used to evaluate the *** overall model’s accuracy was accomplished through self-consistency,jackknife,and cross-validation testing 100%,99.92%,and 99.88%with MCC 1.00,0.99,and 0.997 *** this regard,a user-friendly webserver is also urbanized to accumulate the whole *** features vectorization methods suggest that they can play a critical role in other web servers which are developed to classify lysine glycation.

关键词： Gly-LysPred PseAAC post-translational modification lysine glycation Chou’s 5 step rule position relative features

High-performance and Multi-functional Control of Transformerless Single-phase Smart Inverter for Grid-connected PV System

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Journal of Modern Power Systems and Clean Energy 2021年第6期9卷 1386-1394页

作者： kamran Zeb Saif Ul Islam Waqar Uddin Imran khan muhammad Ishfaq Tiago Davi Curi Busarello H.J.Kim Department of Electrical Engineering Pusan National University School of Electrical Engineering and Computer Science National University of Sciences and Technology Department of Control Automation and Computing EngineeringFederal University of Santa Catarina Blumenau

Highly reliable and flexible control is required for distributed generation(DG) to efficiently connect to the *** inverters play a key role in the control and integration of DG into the power grid and provide advanced functionalities. In this paper, an energy-based single-phase voltage-source smart inverter(SPV-SSI) of 5 k VA is designed and analyzed in detail. SPV-SSI is capable of supplying the power to local load and the utility load up to the rated capacity of the inverter, injecting the power into the grid, storing the energy in lead-acid battery bank, controlling the voltage at the point of common coupling(PCC) during voltage sags or faults, and making decisions on real-time pricing information obtained from the utility grid through advanced metering. The complete design of smart inverter in dq frame, bi-directional DC-DC buck-boost converter, IEEE standard 1547 based islanding and recloser, and static synchronous compensator(STATCOM) functionalities is presented in this paper. Moreover, adaptive controllers, i. e., fuzzy proportional-integral(F-PI) controller and fuzzy-sliding mode controller(F-SMC) are designed. The performances of F-PI controller and F-SMC are superior, stable, and robust compared with those of conventionally tuned PI controllers for voltage control loop(islanded mode) and current control loop(grid-connected mode).

关键词： Distributed generation(DG) inverter convert-er fuzzy-sliding mode controller(F-SMC) fuzzy proportionalintegral(F-PI)controller