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Feature Extraction and Classification of Photovoltaic Panels Based on Convolutional Neural Network

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Computers, Materials & Continua 2023年第1期74卷 1437-1455页

Photovoltaic(PV)boards are a perfect way to create eco-friendly power from *** defects in the PV panels are caused by various conditions;such defective PV panels need continuous *** recent development of PV panel monitoring systems provides a modest and viable approach to monitoring and managing the condition of the PV *** general,conventional procedures are used to identify the faulty modules earlier and to avoid declines in power *** existing deep learning architectures provide the required output to predict the faulty PV panels with less accuracy and a more time-consuming *** increase the accuracy and to reduce the processing time,a new Convolutional Neural Network(CNN)architecture is ***,in the present work,a new real-time Multi Variant Deep learning Model(rMVDM)architecture is proposed,and it extracts the image features and classifies the defects in PV panels quickly with high *** defects that arise in the PV panels are identified by the CNN based rMVDM using rGB *** biggest difference between CNN and its predecessors is that CNN automatically extracts the image features without any help from a *** technique is quantitatively assessed and compared with existing faulty PV board identification approaches on the large real-time *** results show that 98%of the accuracy and recall values in the fault detection and classification process.

关键词： Photovoltaic panels deep learning defect feature extraction rMVDM

A probabilistic approach for predictive congestion control in wireless sensor networks

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Journal of Zhejiang University-Science C(Computers and Electronics) 2014年第3期15卷 187-199页

作者： r.annie uthra S.V.KASMIr rAJA A.JEYASEKAr Anthony J.LATTANZE Department of Computer Science and Engineering SRM University Department of Software Engineering Carnegie Mellon University

Any node in a wireless sensor network is a resource constrained device in terms of memory, bandwidth, and energy, which leads to a large number of packet drops, low throughput, and significant waste of energy due to retransmission. This paper presents a new approach for predicting congestion using a probabilistic method and controlling congestion using new rate control methods. The probabilistic approach used for prediction of the occurrence of congestion in a node is developed using data traffic and buffer occupancy. The rate control method uses a back-off selection scheme and also rate allocation schemes, namely rate regulation(rrG) and split protocol(SP), to improve throughput and reduce packet drop. A back-off interval selection scheme is introduced in combination with rate reduction(rr) and rrG. The back-off interval selection scheme considers channel state and collision-free transmission to prevent congestion. Simulations were conducted and the results were compared with those of decentralized predictive congestion control(DPCC) and adaptive duty-cycle based congestion control(ADCC). The results showed that the proposed method reduces congestion and improves performance.

关键词： Congestion rate allocation Congestion control Packet loss Back-off interval rate control

Anomaly Detection and Classification in Streaming PMU Data in Smart Grids

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Computer Systems Science & Engineering 2023年第9期46卷 3387-3401页

作者： A.L.Amutha r.annie uthra J.Preetha roselyn r.Golda Brunet Department of Computational Intelligence SRM Institute of Science and TechnologyChennai603203India Department of Electrical and Electronics Engineering SRM Institute of Science and TechnologyChennai603203India Department of Computer Science and Engineering Government College of EngineeringSalem636011India

The invention of Phasor Measurement Units(PMUs)produce synchronized phasor measurements with high resolution real time monitoring and control of power system in smart grids that make *** are used in transmitting data to Phasor Data Concentrators(PDC)placed in control centers for monitoring purpose.A primary concern of system operators in control centers is maintaining safe and efficient operation of the power *** can be achieved by continuous monitoring of the PMU data that contains both normal and abnormal *** normal data indicates the normal behavior of the grid whereas the abnormal data indicates fault or abnormal conditions in power *** a result,detecting anomalies/abnormal conditions in the fast flowing PMU data that reflects the status of the power system is critical.A novel methodology for detecting and categorizing abnormalities in streaming PMU data is presented in this *** proposed method consists of three modules namely,offline Gaussian Mixture Model(GMM),online GMM for identifying anomalies and clustering ensemble model for classifying the *** significant features of the proposed method are detecting anomalies while taking into account of multivariate nature of the PMU dataset,adapting to concept drift in the flowing PMU data without retraining the existing model unnecessarily and classifying the *** proposed model is implemented in Python and the testing results prove that the proposed model is well suited for detection and classification of anomalies on the fly.

关键词： Smart Grid PMU data incremental learning classifying anomalies artificial intelligence

Metamorphoses of the University and the Pathways of Indigenous Students in Quebec:Issues of Accessibility to Studies and Academic Persistence from a Perspective of the Decolonization of Education-A Secondary Publication

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Journal of Contemporary Educational research 2024年第4期8卷 304-315页

作者： Jean-Luc ratel annie Pilote Faculty of Education Universitédu QuébecàMontréalCanada Faculty of Education UniversitéLavalCanada

In connection with the historical context of social segregation and the assimilative aim of formal education imposed on them,the Indigenous Peoples of Québec have long been excluded from higher ***,even if their graduation rates are increasing,a persistent gap with the non-Indigenous population is *** data in this article are drawn from 23 interviews with students and university graduates of the First Nations of Québec,as part of a thesis in educational *** paper analyzes how these students manage to combine the contributions of Indigenous education with those of Western education by developing paths that are part of the decolonization movement of *** relationship to Indigenous identity and cultures clearly influences their educational background and is analyzed taking into account power relations with the dominant *** paper emphasizes more particularly the relationship to studies,the adaptation to the student profession,and the balance between studies,work,and family among Indigenous students,in a context of transition from university to multiversity which contributed to the increase of Indigenous university attendance.

关键词： Educational inclusion and exclusion Higher and university education Educational inequalities Canada

The evolving roles of Wnt signaling in stem cell proliferation and differentiation, the development of human diseases, and therapeutic opportunities

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Genes & Diseases 2024年第3期11卷 155-187页

作者： Michael Yu Kevin Qin Jiaming Fan Guozhi Zhao Piao Zhao Wei Zeng Connie Chen annie Wang Yonghui Wang jiamin Zhong Yi Zhu William Wagstaff rex C.Haydon Hue H.Luu Sherwin Ho Michael J.Lee Jason Strelzow russell r.reid Tong-Chuan He School of Medicine Rosalind Franklin University of Medicine and ScienceNorth ChicagoIL 60064USA Molecular Oncology Laboratory Department of Orthopedic Surgery and Rehabilitation MedicineThe University of Chicago Medical CenterChicagoIL 60637USA Ministry of Education Key Laboratory of Diagnostic Medicine and Department of Clinical BiochemistryThe School of Laboratory MedicineChongqing Medical UniversityChongqing 400016China Department of Orthopedic Surgery The First Affliated Hospital of Chongqing Medical UniversityChongqing 400016China Department of Urology The First Affiliated Hospital of Chongqing Medical UniversityChongqing 400016China Department of Clinical Laboratory Medicine Shanghai Jiaotong University School of MedicineShanghai 200000China Department of Orthopaedic Surgery Chinese Academy of Medical Sciences&Peking Union Medical CollegeBeijing 100730China Laboratory of Craniofacial Suture Biology and Development Department of Surgery Section of Plastic SurgeryThe University of Chicago Medical CenterChicagoIL 60637USA Department of Neurology The First Dongguan Affiliated HospitalGuangdong Medical UniversityDongguanGuangdong 523475China

The evolutionarily conserved Wnt signaling pathway plays a central role in develop-ment and adult tissue homeostasis across *** proteins are secreted,lipid-modified signaling molecules that activate the canonical(β-catenin dependent)and non-canonical(β-catenin independent)Wnt signaling *** behaviors such as proliferation,differ-entiation,maturation,and proper body-axis specification are carried out by the canonical pathway,which is the best characterized of the known Wnt signaling *** signaling has emerged as an important factor in stem cell biology and is known to affect the self-renewal of stem cells in various *** includes but is not limited to embryonic,hematopoietic,mesenchymal,gut,neural,and epidermal stem *** signaling has also been implicated in tumor cells that exhibit stem cell-like *** signaling is crucial for bone formation and presents a potential target for the development of therapeutics for bone *** surprisingly,aberrant Wnt signaling is also associated with a wide variety of diseases,including *** of Wnt pathway members in cancer can lead to unchecked cell proliferation,epithelial-mesenchymal transition,and ***,advances in the understand-ing of dysregulated Wnt signaling in disease have paved the way for the development of novel therapeutics that target components of the Wnt *** with a brief overview of the mechanisms of canonical and non-canonical Wnt,this review aims to summarize the cur-rent knowledge of Wnt signaling in stem cells,aberrations to the Wnt pathway associated with diseases,and novel therapeutics targeting the Wnt pathway in preclinical and clinical studies.

关键词： β-Catenin Cancer Canonical Wnt Disease Non-canonical Wnt Stem cells Targeted therapy Wnt signaling

Comparison of Nutrition Practices, Knowledge and Exercise between Pregnant Women in China and Zambia

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Open Journal of Obstetrics and Gynecology 2024年第9期14卷 1437-1448页

作者： Nisile Kakongoma annie Nambela Sha Lu Wensheng Hu Lingya Fang Department of Obstetrics Zhejiang Chinese Medical University Hangzhou Womens Hospital Hangzhou China Chingola District Health Office Chingola Zambia Prenatal Screening and Prenatal Diagnosis Center Hangzhou Womens Hospital (Hangzhou Maternity and Child Health Care Hospital) Hangzhou China Department of Obstetrics Womens Hospital Zhejiang University Hangzhou China

Purpose: The aim of this study is to compare how Chinese and Zambian pregnant women respond to nutrition and exercise. Methods: This is a cross-sectional study with data that was conducted in Chingola City, Zambia, and Hangzhou City, China, using an online survey between September 1, 2023 and February 28, 2024. The subjects were divided into two groups (the China group and the Zambia group) according to their nationality. results: A total of 210 participants were included through a questionnaire survey, 104 from China and 106 from Zambia. In terms of nutrient supplementation and whether to choose takeout weekly, 100% of Chinese pregnant women chose yes, while 100% of Zambian pregnant women chose no (P 0.05). The proportion of pregnant women in the China group choosing moderate or intense activities was higher than that in the Zambia group. In terms of daily exercise time, the proportion of Chinese pregnant women choosing 13 - 30 minutes or 30 - 60 minutes was significantly higher than that of Zambian pregnant women (P Conclusion: From the findings in our study, it can be observed that although pregnancy is an experience that many women may go through, lifestyle habits during pregnancy can vary from culture to culture or ethnicity.

关键词： Nutrition Exercise Pregnancy China Zambia

Canonical and noncanonical Wnt signaling: Multilayered mediators, signaling mechanisms and major signaling crosstalk

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Genes & Diseases 2024年第1期11卷 103-134页

作者： Kevin Qin Michael Yu Jiaming Fan Hongwei Wang Piao Zhao Guozhi Zhaoo Wei Zeng Connie Chen Yonghui Wang annie Wang Zander Schwartz Jeffrey Hong Lily Song William Wagstaff rex C.Haydon Hue H.Luu Sherwin H.Ho Jason Strelzow russell r.reid Tong-Chuan He Lewis L.Shi Chicago Medical School Rosalind Franklin University of Medicine and ScienceNorth ChicagoIL 60064USA Molecular Oncology Laboratory Department of Orthopaedic Surgery and Rehabilitation MedicineThe University of Chicago Medical CenterChicagoIL 60637USA Ministry of Education Key Laboratory of Diagnostic Medicine and Department of Clinical BiochemistryThe School of Laboratory MedicineChongqing Medical UniversityChongqing 400016China Departments of Orthopaedic Surgery and Urology The First Affiliated Hospital of Chongqing Medical UniversityChongqing 400016China Department of Interventional Neurology The First Dongguan Affiliated HospitalGuangdong Medical UniversityDongguanGuangdong 523475China Department of Clinical Laboratory Medicine Shanghai Jiaotong University School of MedicineShanghai 200000China School of Biomedical Engineering Vanderbilt UniversityNashvilleTN 37235USA Laboratory of Craniofacial Biology and Development Department of Surgery Section of Plastic SurgeryThe University of Chicago Medical CenterChicagoIL 60637USA

Wnt signaling plays a major role in regulating cell proliferation and *** Wnt ligands are a family of 19 secreted glycoproteins that mediate their signaling effects via binding to Frizzled receptors and LrP5/6 coreceptors and transducing the signal either throughβ-catenin in the canonical pathway or through a series of other proteins in the nonca-nonical *** of the individual components of both canonical and noncanonical Wnt signaling have additional functions throughout the body,establishing the complex interplay between Wnt signaling and other signaling *** crosstalk between Wnt signaling and other pathways gives Wnt signaling a vital role in many cellular and organ ***-regulation of this system has been implicated in many diseases affecting a wide array of organ systems,including cancer and embryological defects,and can even cause embryonic *** complexity of this system and its interacting proteins have made Wnt signaling a target for many therapeutic ***,both stimulatory and inhibitory treatments come with potential risks that need to be *** review synthesized much of the current knowl-edge on the Wnt signaling pathway,beginning with the history of Wnt *** thoroughly described the different variants of Wnt signaling,including canonical,noncanonical Wnt/PCP,and the noncanonical Wnt/Ca2+*** description involved each of its components and their involvement in other cellular ***,this review explained the various other pathways and processes that crosstalk with Wnt signaling.

关键词： β-catenin Canonical Wnt Noncanonical Wnt Signal transduction Signaling crosstalk

Optoelectronic and thermoelectric properties of spinel chalcogenides HgLa2X4（X=S and Se）:A first-principles study

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Journal of rare Earths 2024年第10期 1927-1936页

作者： Aparna Dixit Inas A.Ahmed Jisha annie Abraham Zeinhom M.El-Bahy Mumtaz Manzoor Sajad Ahmad Dar ramesh Sharma Department of Basic Science and Humanities Pranveer Singh Institute of Technology Department of Chemistry Faculty of ScienceKing Khalid University Department of Physics National Defence Academy Department of Chemistry Faculty of ScienceAl-Azhar University Institute of Physics Slovak Academy of Sciences Department of Physics Motilal Vigyan Mahavidyalya College Department of Applied Science Feroze Gandhi Institute of Engineering and Technology

We investigated spinel chalcogenides HgLa2（S/Se）4by using density function theory,and scrutinized the structural,optical,electrical,mechanical and thermoelectric transport characteristics of HgLa2（S/Se）4spinel *** enthalpy of formation,energy of cohesion,and energy volume optimum plots were used to obtain the stability as well as the perfect ground state of these *** ductility of these materials was the best illustrated with the help of Poisson's and Pugh's *** band gap results were obtained using Trans and Blaha modified Becke-Johanson potential（TB-mBJ）.Both the materials present semi-conducting nature with direct band gap equal to 1.449 and 0.892 eV respectively for HgLa2S4and *** were also made for optical characteristics with the values of dielectric function,absorption coefficient,optical conductivity,reflectivity,and refractive *** to the findings,both of these materials are suitable for infrared optoelectronic *** materials were found to have promising optoelectronic and thermoelectric applications after their optical properties and transport aspects were *** tiny levels of temperature conductivities,substantial am ounts of power conductivities,the figure of merit（more than unity）,as well as Seebecs coefficients all point to the potential use of both the materials in thermoelectric power generators.

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Analysis and Optimization of Operational and Pollutant Attributes of Diesel Engine with CNT-Infused Orange Peel Biodiesel-Diesel Blend Fuel

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Journal of Thermal Science 2024年第2期33卷 761-778页

作者： ranjeet rAI r.r.SAHOO Mechanical Engineering Department GLA UniversityMathura281406India Mechanical Engineering Department IIT(BHU)Varanasi221005India

The current study is performed to find sustainable solutions for the future of transportation and environmental *** conventional methods and experimental design table(L16 Orthogonal Array)techniques have been employed to examine and optimize a diesel-powered engine's operational and pollutant *** L16 Orthogonal Array is obtained through Taguchi's experimental design approach using Minitab 16 *** experimental design incorporated three control variables,namely engine speed,fuel type,and engine load,each with four *** operational parameters,namely brake thermal efficiency(BTE)and brake specific fuel consumption(BSFC),as well as the emission characteristics,including hydrocarbon(HC),carbon monoxide(CO),nitrogen oxide(NO),and smoke emissions,were acquired using the L16 orthogonal array(OA) and subsequently *** utilization of methodologies such as signal-to-noise(S/N) ratio and grey analysis was employed to determine the optimal operational state of the engine to achieve maximum performance while minimizing *** engine's ideal state of operation,in terms of BTE and BSFC,was determined to be at 75% engine load,1000 r/min engine speed,and using 10^(-4)(in vol) carbon nanotube incorporated 20% orange peel biodiesel(OPB20CNT100) blended fuel(A3-B1-C4).The study indicated that engine load significantly influenced BTE and BSFC,with 84.05% and 87.79% contribution factors,*** 25% engine load,1000 r/min,and OPB20CNT100 fuel(A1-B1-C4) CO,smoke,NO,and HC emissions were the *** load affects emissions the *** BSFC increased 3.10% and NO emissions 1.77%.BTE,CO,smoke,and HC emissions decreased by 1.9%,12.29%,47.05%,and 47.22%,respectively,at optimal operating conditions concerning diesel *** study shows that Taguchi-Grey's experimental design optimizes diesel engine operational and pollutant *** outcomes revealed that orange peel biodiesel infused with CNT can replace diesel fuel in a

关键词： Taguchi-Grey method OPB20CNT100 transesterification S/N ratio GrG HC CO and NO