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A higher prediction accuracy–based alpha–beta filter algorithm using the feedforward artificial neural network

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CAAI Transactions on Intelligence Technology 2023年第4期8卷 1124-1139页

作者： junaid khan Eunkyu Lee Kyungsup Kim Department of Environmental&IT Engineering Chungnam National UniversityDaejeonRepublic of Korea Research and Development Department SafeTech ResearchIncDaejeonRepublic of Korea Department of Computer Engineering Chungnam National UniversityDaejeonRepublic of Korea

The alpha–beta filter algorithm has been widely researched for various applications,for example,navigation and target tracking *** improve the dynamic performance of the alpha–beta filter algorithm,a new prediction learning model is proposed in this *** proposed model has two main components:(1)the alpha–beta filter algorithm is the main prediction module,and(2)the learning module is a feedforward artificial neural network(FF‐ANN).Furthermore,the model uses two inputs,temperature sensor and humidity sensor data,and a prediction algorithm is used to predict actual sensor readings from noisy sensor *** the novel proposed technique,prediction accuracy is significantly improved while adding the feed‐forward backpropagation neural network,and also reduces the root mean square error(RMSE)and mean absolute error(MAE).We carried out different experiments with different experimental *** proposed model performance was evaluated with the traditional alpha–beta filter algorithm and other algorithms such as the Kalman filter.A higher prediction accuracy was achieved,and the MAE and RMSE were 35.1%–38.2%*** final proposed model results show increased performance when compared to traditional methods.

关键词： alpha beta filter artificial neural network navigation prediction accuracy target tracking problems

Food intake regulation by leptin:Mechanisms mediating gluconeogenesis and energy expenditure

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Asian Pacific Journal of Tropical Medicine 2017年第10期10卷 940-944页

作者： Zulfia Hussain junaid Ali khan Institute of Pharmacy Physiology and PharmacologyUniversity of AgricultureFaisalabad38040Pakistan

Regulation of blood glucose levels and body fat is critical for *** circulates freely in blood and controls body weight and food intake mainly through hypothalamic receptors and regulates glucose metabolism in the liver both directly through leptin receptors and indirectly via the hypothalamic receptors of central nervous *** affects food intake regulation and eventually glucose metabolism, lipometabolism,endocrine and immune functions, reproductive function, adipose tissue metabolism and energy *** also exerts peripheral effects directly on glucose metabolism and *** of obese human subjects have elevated plasma levels of leptin associated to the size of their total adipose tissue *** gluconeogenic function may be an essential factor in the regulation of nutritional intake and weight *** aim of this review is therefore to identify and module the possible effects of leptin with special application in *** addition, this review includes the study of fat consumption and energy expenditure in the *** modulation of leptin receptors and adipose tissues functioning could have important inference on therapeutic strategies.

关键词： Leptin Adipocyte Glycogen breakdown Gluconeogenesis Homeostasis Energy expenditure

Crosstalk of liver immune cells and cell death mechanisms in different murine models of liver injury and its clinical relevance

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Hepatobiliary & Pancreatic Diseases International 2017年第3期16卷 245-256页

作者： Hilal Ahmad khan Muhammad Zishan Ahmad junaid Ali khan Muhammad Imran Arshad Institute of Microbiology University of Agriculture Faisalabad Pakistan Institute of Pharmacy Physiology and Pharmacology University of Agriculture Faisalabad Pakistan Department of Pathology The University of Faisalabad (TUF) Faisalabad Pakistan

BACKGROUND： Liver inflammation or hepatitis is a result of pluripotent interactions of cell death molecules, cytokines, chemokines and the resident immune cells collectively called as microenvironment. The interplay of these inflammatory mediators and switching of immune responses during hepatotoxic, viral, drug-induced and immune cell-mediated hepatitis decide the fate of liver pathology. The present review aimed to describe the mechanisms of liver injury, its relevance to human liver pathology and insights for the future therapeutic *** SOURCES： The data of mouse hepatic models and rele- vant human liver diseases presented in this review are system- atically collected from PubMed, ScienceDirect and the Web of Science databases published in English. RESULTS： The hepatotoxic liver injury in mice induced by the metabolites of CC14, acetaminophen or alcohol represent ne- crotic cell death with activation of cytochrome pathway, for- mation of reactive oxygen species （ROS） and mitochondrial damage. The Fas or TNF-a induced apoptotic liver injury was dependent on activation of caspases, release of cytochrome c and apoptosome formation. The ConA-hepatitis demonstrat- ed the involvement of TRAIL-dependent necrotic/necroptotic cell death with activation of RIPK1/3. The a-GalCer-induced liver injury was mediated by TNF-a. The LPS-induced hepatitis involved TNF-a, Fas/FasL, and perforin/granzyme cell death pathways. The MHV3 or Poly（I：C） induced liver injury was mediated by natural killer cells and TNF-a signaling. The necrotic ischemia-reperfusion liver injury was mediated by hypoxia, ROS, and pro-inflammatory cytokines; however, necroptotic cell death was found in partial hepatectomy. The crucial role of immune ceils and cell death mediators in viral hepatitis （HBV, HCV）, drug-induced liver injury, non-alcohol- ic fatty liver disease and alcoholic liver disease in human were discussed. CONCLUSIONS： The mouse animal models of hepatitis provide a parallel appro

关键词： liver immunobiology hepatitis therapy mode of cell death

Stochastic Computational Approach for Complex Nonlinear Ordinary Differential Equations

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Chinese Physics Letters 2011年第2期28卷 20-23页

作者： junaid Ali khan Muhammad Asif Zahoor Raja Ijaz Mansoor Qureshi Department of Electronic Engineering International Islamic UniversityIslamabadPakistan Department of Electrical Engineering Air UniversityIslamabadPakistan

We present an evolutionary computational approach for the solution of nonlinear ordinary differential equations(NLODEs).The mathematical modeling is performed by a feed-forward artificial neural network that defines an unsupervised *** training of these networks is achieved by a hybrid intelligent algorithm,a combination of global search with genetic algorithm and local search by pattern search *** applicability of this approach ranges from single order NLODEs,to systems of coupled differential *** illustrate the method by solving a variety of model problems and present comparisons with solutions obtained by exact methods and classical numerical *** solution is provided on a continuous finite time interval unlike the other numerical techniques with comparable *** the advent of neuroprocessors and digital signal processors the method becomes particularly interesting due to the expected essential gains in the execution speed.

关键词： technique methods ordinary

Novel Approach for a van der Pol Oscillator in the Continuous Time Domain

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Chinese Physics Letters 2011年第11期28卷 16-19页

作者： junaid Ali khan Muhammad Asif Zahoor Raja Ijaz Mansoor Qureshi Department of Electronic Engineering International Islamic UniversityIslamabadPakistan

We investigate the continuous time domain numerical treatment of a van der Pol oscillator,applying the trial solution as an artificial feed-forward neural network model containing unknown adjustable *** optimization of the network is performed by simulated annealing in an unsupervised *** proposed scheme is tested successfully by its application in both non-stiff and stiff *** reliability and effectiveness is validated through comprehensive statistical *** obtained results are in good agreement with the classical RK45 method.

关键词： artificial neural stiff

Synthesis and Characterization of Hematite (α-Fe2O3) Iron Oxide-coated Silica and Its Adsorption,Desorption Behavior with Copper Ions in Aqueous Solution

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Synthesis and Characterization of Hematite (α-Fe2O3) Iron O...

作者： junaid khan 东北师范大学

学位级别：硕士

论文旨在提高合成赤铁矿(→-FeO)涂层砂的表面质量,进而提高去除水中铜离子效率。论文采用更稳定、环保的→-FeO修饰砂子表面,评估砂子表面的→-FeO含量及其对水溶液中铜离子的吸附/解吸能力。为此,三种不同pH值(1,5和10)的FeC13用于制... 详细信息

论文旨在提高合成赤铁矿(→-FeO)涂层砂的表面质量,进而提高去除水中铜离子效率。论文采用更稳定、环保的→-FeO修饰砂子表面,评估砂子表面的→-FeO含量及其对水溶液中铜离子的吸附/解吸能力。为此,三种不同pH值(1,5和10)的FeC13用于制备→-FeO,且包覆天然河砂。并对包覆→-FeO的河砂进行X射线衍射,扫描电子显微镜SEM,EDX和FTIR分析,描述涂层的表面形貌特征,解析砂涂层表面对铜离子的吸附机理。对铜离子吸附进行了批量实验,考察时间、剂量、pH和初始铜浓度对铜离子去除效能的影响。等温吸附和动力学模型用于拟合不同温度(15,25和35℃)下的吸附实验结果。此外,还进行了不同介质(HCl、HNO3、CH3OOH、NaOH、蒸馏水和自来水)的解析实验及→-FeO回收利用。结果表明,在pH=1的→-FeO涂层表面发现了高强度纯FeO晶峰和铁含量,铜离子去除效率也较pH=5和10的→-FeO涂层更高效(85-94%)。包覆→-FeO的砂对铜离子最大吸收量qm=3.93毫克/克,比其他富含氧化铁吸附剂的产品更有效。Langmuir等温吸附模型和准二级动力学模型更好地拟合了包覆→-FeO的天然砂对铜离子吸收。柱实验当进水流速为1L/h时,铜离子去除率为95%。H2SO4和HCl溶液对铜离子吸附饱和的砂柱,具有良好解吸、反冲洗及回收铜离子(1.12 mg/g)的效果。然而,真实环境中的去除效率低于实验室,这是由于真实环境废水中存在其他杂质和离子,填补了→-FeO涂层的孔隙。理论与实际意义:论文研究结果将为研发经济、高效的重金属废水处理处理工艺提供理论支撑。

关键词：吸附赤铁矿涂层砂脱吸铜离子低pH 等温线动态拟合

Modeling and Classification of Photovoltaic Hotspot Fault with Shaded and Un-Shaded Conditions Using Mamdani-type Fuzzy Inference

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Modeling and Classification of Photovoltaic Hotspot Fault wi...

作者： junaid ALI khan 河北工业大学

学位级别：硕士

Photovoltaic power generation as the main content of the energy revolution has attracted more and more attention and research all over the *** detection techniques play a decisive role in reliability as well as boost the output power and overall performance of a photovoltaic system(PVS).Faults that are shading and hotspots can be found in the PV module(PVM).Shading faults can occur due to continuous changes in the irradiance level of a module,soiling,dust or other shadows can cause such ***(HS)occurs when a cell in a module considerably heats up instead of generating power,and starts consuming power from adjacent cells or dissipates power which further results in reducing optimum power and leading to cell cracking and other degradation *** fault can be further categorized as shaded and unshaded *** HS is an HS fault with shading PV cells while unshaded HS is due to the cell's internal defects such as low *** this work,the photovoltaic system explores techniques to enhance the overall performance of the PVS by detection and classification of *** faults can occur in a module of a PVS which can degrade the system's reliability as well as reduce the optimal *** mitigate these PV faults,investigation of detection and classification techniques is of significance.A hotspot and shading faults are sometimes confusing and are of significance in identifying these *** this thesis,an algorithm has been proposed to identify these *** confusion causes such as environments,shading,and HS are *** the main objection is to classify the HS faults under shaded and un-shaded *** Impacts of HS on the overall performance of a PV system are also *** this thesis,HS fault is categorized as shaded and un-shaded HS,and hotspot in both shaded and un-shaded conditions has been analyzed,and then a technique called Mamdani-type Fuzzy logic system for detection and classification of Shading and HS bot

关键词： Photovoltaic System Hot spot faults Shading faults Faults Detection and Classification Fuzzy logic system

Energy and Life Cycle Assessment of Zinc/Water Nanofluid Based Photovoltaic Thermal System

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Energy Engineering 2022年第2期119卷 827-846页

作者： junaid khan Rashid Ali Muzammil Zubair Syed Mohd Yahya SEARL Laboratory Department of Mechancial EngineeringAligarh Muslim UniversityAligarh202002India

Cooling the PV surface in a Photovoltaic Thermal system is a pivotal operational aspect to be taken into account to achieve optimized values of performance parameters in a Photovoltaic Thermal *** experimental design used in this study facilitates the flow of varying concentrations of Zn-water nanofluid in serpentine copper tubing installed at the rear of the PV panel thereby preventing the PV surface temperature from increasing beyond the threshold value at which a decrease in electrical efficiency starts to *** fusion of solar thermal with PV devices leads to better electrical and thermal efficiency values resulting in decreased cell degradation over time and maximization of the lifespan of the PV module and the energy output from the PV *** to the superior thermal heat properties of nanofluids,their usage in such systems has become increasingly *** cycle metrics which include Energy Payback period,Energy Production Factor and life cycle conversion efficiency were evaluated for the PVT system by exhaustively chalking fundamental parameters such as embodied energy of the PVT setup and the total energy output from the PVT *** research aims to be a major milestone in the evolutionary journey of Photovoltaic Thermal modules by guiding the engineers working on the theory,design and implementation of PVT systems towards its economic feasibility,environmental impact and energy sustainability.

关键词： Photovoltaic thermal system nanofluids performance parameters life cycle assessment

First Record of Middle Eocene Elephant Ancestors’Footprints in the Gonjo Basin,East Tibet Plateau

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Journal of Earth Science 2024年第4期35卷 1224-1235页

作者： Asma Tahir Huazhou Yao junaid khan Yangui Li He Zhao Yue Yu Tang Yuan Institute of Geological Survey China University of GeosciencesWuhan430074China Wuhan Center China Geological SurveyWuhan430205China State Key Laboratory of Geological Processes and Mineral Resources Wuhan430078China Chengdu Center China Geological SurveyChengdu610081China Institute of Geographic Sciences and Natural Resources Research Chinese Academy of SciencesBeijing100101China

It is the first time that the fossil footprints of a group of Middle Eocene elephant ancestors have been discovered in the Gonjo Basin,East Tibet *** Gonjo Formation is attributed to the Middle Eocene Epoch(U-Pb age=44.7±1.2 Ma)and consists mainly of purplish-red,medium-to coarse-grained sandstones,siltstones interbedded with mudstones,and conglomerates with sedimentary structures like ripple marks,rip-up clasts,and trough-cross bedding,suggesting fluvial-lacustrine *** group of fossil footprints has a characteristic oval-concave shape,and the toe impressions are *** fossil footprints are overstepped with a pockmarked texture resembling Proboscipeda *** than 165 fossil footprints of the group are relatively well-preserved with different diameters,which is evidence of highly social behavior and trackmakers of different ages,including calves,juveniles,adolescents,and *** size frequency of the fossil footprints enabled us to deduce the body mass,shoulder height,and hip-height distribution of the trackmakers that crossed the East Tibet Plateau 44.7 Ma *** trackmakers comprised an estimated average hip-height of 111.8 cm,an average shoulder height of 172.8 cm for males/155.9 cm for females,and an average body mass of approximately 1218.1 kg for males/907.8 kg for *** abundance of fossil footprints reveals that in the Middle Eocene Epoch,the environment was extraordinarily conducive for the elephant ancestors to live in the East Tibet region.

关键词： Proboscipeda enigmatica East Tibet Plateau Gonjo Formation fossil footprints fluvial-lacustrine