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Particle Swarm Optimization for Solving Sine-Gordan Equation

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Computer Systems Science & Engineering 2023年第6期45卷 2647-2658页

作者： Geeta Arora Pinkey Chauhan Muhammad Imran Asjad varun joshi Homan Emadifar Fahd Jarad Lovely Professional University Punjab144118India Jaypee Institute of Information Technology Noida201304India Department of Mathematics University of Management and TechnologyLahore54770Pakistan Department of Mathematics Hamedan BranchIslamic Azad UniversityHamedanIran Department of Mathematics Cankaya UniversityEtimesgutAnkara06790Turkey Department of Mathematics King Abdulaziz UniversitySaudi Arabia Department of Medical Research China Medical University HospitalChina Medical UniversityTaichungTaiwan

The term‘optimization’refers to the process of maximizing the beneficial attributes of a mathematical function or system while minimizing the unfavorable *** majority of real-world situations can be modelled as an optimization *** complex nature of models restricts traditional optimization techniques to obtain a global optimal solution and paves the path for global optimization *** Swarm Optimization is a potential global optimization technique that has been widely used to address problems in a variety of *** idea of this research is to use exponential basis functions and the particle swarm optimization technique to find a numerical solution for the Sine-Gordan equation,whose numerical solutions show the soliton form and has diverse *** implemented optimization technique is employed to determine the involved parameter in the basis functions,which was previously approximated as a random number in the work reported till now in the *** obtained results are comparable with the results obtained in the *** work is presented in the form of figures and tables and is found encouraging.

关键词： Differential quadrature method B-spline particle swarm optimization Sine-Gordan equation

Comprehensive Review on Air Pollution Control Measures for Non-Attainment Cities of Uttar Pradesh, India

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Journal of Environmental Protection 2023年第3期14卷 139-162页

作者： Khyati Sharma Anchal Garg varun joshi University School of Environment Management GGS Indraprastha University Delhi India EnviroVigyan Non-Governmental Organization in Shahdara Delhi India Earth System Science Department Stanford University Stanford USA

Introduction: The Indian state of Uttar Pradesh (UP) for the past many years has been reported to have many cities with highly polluted air quality. The state has been taking meticulous steps in combating air pollution in the form of action plans, introduced especially in its 17 non-attainment cities (NAC). To assess the progress and development of these action plans in UP, the present study has done an in-depth analysis and review of the state’s action plans and city micro action plans. Materials and Methods: In this research study, the analysis of the latest action plan reports, micro action plan reports as well as the recommendations for combating air pollution-related issues in the 17 NAC of the UP state has been well documented. Uttar Pradesh Pollution Control Board (UPPCB) has prepared these reports to highlight the progress of the plans in response to the growing air pollution in these cities. The information present in the reports has been used to further study sector-specific, category-specific action plans, institutional responsibility, and the present status of the action plans. Results: On average, the highest weightage in action plans was given to sector-specific categories such as Road dust and construction activities (24%). It was also observed that Urban local bodies (~50%) were majorly responsible to implement the action points and 56% of the action points were jointly implemented by multiple agencies.

关键词： Air Pollution Air Quality Air Pollution Control Non-Attainment Cities India Uttar Pradesh Particulate Matter

印度喜马拉雅中部阿拉克南达集水区的气候可变性、脆弱性和应对机制

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AMBIO－人类环境杂志 2008年第4期37卷 272-277页

作者： Kireet Kumar Sneh joshi varun joshi 王胜（译）喜马拉雅环境和发展G．B．Pant研究所不详

本文对喜马拉雅中部阿拉克南达集水区进行了研究,发现了其降雨和温度格局的趋势。分析了过去10年的年降雨量、季风降雨及过去几十年的年平均温度。确定趋势使用的是非参数方法(曼肯德尔[Mann-Kendall]和森氏[Sen]方法)。曼肯德尔检验表... 详细信息

本文对喜马拉雅中部阿拉克南达集水区进行了研究,发现了其降雨和温度格局的趋势。分析了过去10年的年降雨量、季风降雨及过去几十年的年平均温度。确定趋势使用的是非参数方法(曼肯德尔[Mann-Kendall]和森氏[Sen]方法)。曼肯德尔检验表明降雨下降而温度升高,在两个海拔区,这些趋势在95%的置信区间上呈统计学显著。森氏方法也证实了这个趋势。这个现象必须严肃对待,原因很简单,如果同样的趋势在未来持续下去的话,那么干旱的可能性将大为增加。集水区的人民已经察觉到气候变化的影响,在当地已经开发出了应对机制。

关键词：喜马拉雅气候变化集水区机制可变性年平均温度年降雨量印度

喜马拉雅山区压力之下的土地利用状况:系统响应

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人类环境杂志 1997年第2期26卷 122-124页

作者： Girish C.S.Negi varun joshi 闵庆文 G.B.Pant Institute of Himalayan Environment Development Garhwal Unit P.O.Box-92 Srinagar-Garhwal 246 174India

引言在印度格尔瓦喜马拉雅山区,一些地方正在经历着耕地向荒地转变的过程。这一区域农业在生态学与经济学上都不能持续发展的主要因素有:靠雨水耕作(只有18.4%的耕地可以灌溉)、小规模、零碎的土地分布在崎岖的地形上(70%的地块<1hm^2,... 详细信息

引言在印度格尔瓦喜马拉雅山区,一些地方正在经历着耕地向荒地转变的过程。这一区域农业在生态学与经济学上都不能持续发展的主要因素有:靠雨水耕作(只有18.4%的耕地可以灌溉)、小规模、零碎的土地分布在崎岖的地形上(70%的地块<1hm^2,且可能分布在30块从0.01到0.058hm^2不等的小梯田上);由于土地/人口比高而作物的产出/投入比低而使作物产量不高;采用集约经营农业的规模有限;用于畜牧业以及为农田培肥的植被稀少等。该区域居民的主要职业是务农,这就要求大量的饲料以饲养性畜。

关键词：喜玛拉雅山区土地利用状况系统响应

Three-Stage Transfer Learning with AlexNet50 for MRI Image Multi-Class Classification with Optimal Learning Rate

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Computer Modeling in Engineering & Sciences 2025年第1期142卷 155-183页

作者： Suganya Athisayamani A.Robert Singh Gyanendra Prasad joshi Woong Cho School of Computing Sastra Deemed to be UniversityThanjavur613401India Department of Computational Intelligence SRM Institute of Science and TechnologyKattankulathur603203India Department of AI and Software Engineering Kangwon National UniversitySamcheok25913Republic of Korea Department of Electronics Information and Communication EngineeringKangwon National UniversitySamcheok25913Republic of Korea

In radiology,magnetic resonance imaging(MRI)is an essential diagnostic tool that provides detailed images of a patient’s anatomical and physiological *** is particularly effective for detecting soft tissue ***,radiologists manually interpret these images,which can be labor-intensive and time-consuming due to the vast amount of *** address this challenge,machine learning,and deep learning approaches can be utilized to improve the accuracy and efficiency of anomaly detection in MRI *** manuscript presents the use of the Deep AlexNet50 model for MRI classification with discriminative learning *** are three stages for learning;in the first stage,the whole dataset is used to learn the *** the second stage,some layers of AlexNet50 are frozen with an augmented dataset,and in the third stage,AlexNet50 with an augmented dataset with the augmented *** method used three publicly available MRI classification datasets:Harvard whole brain atlas(HWBA-dataset),the School of Biomedical Engineering of Southern Medical University(SMU-dataset),and The National Institute of Neuroscience and Hospitals brain MRI dataset(NINS-dataset)for *** hyperparameter optimizers like Adam,stochastic gradient descent(SGD),Root mean square propagation(RMS prop),Adamax,and AdamW have been used to compare the performance of the learning ***-dataset registers maximum classification *** evaluated the performance of the proposed classification model using several quantitative metrics,achieving an average accuracy of 98%.

关键词： MRI tumors classification AlexNet50 transfer learning hyperparameter tuning optimizer

Multi-Scale Dilated Convolution Network for SPECT-MPI Cardiovascular Disease Classification with Adaptive Denoising and Attenuation Correction

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Computer Modeling in Engineering & Sciences 2025年第1期142卷 299-327页

作者： A.Robert Singh Suganya Athisayamani Gyanendra Prasad joshi Bhanu Shrestha Department of Computational Intelligence SRM Institute of Science and TechnologyKattankulathur603203Tamil NaduIndia School of Computing Sastra Deemed to be UniversityThanjavur613401Tamil NaduIndia Department of Artificial Intelligence&Software Kangwon National UniversitySamcheok25913Republic of Korea Department of Information Convergence System Graduate School of Smart ConvergenceKwangwoon UniversitySeoul01897Republic of Korea

Myocardial perfusion imaging(MPI),which uses single-photon emission computed tomography(SPECT),is a well-known estimating tool for medical diagnosis,employing the classification of images to show situations in coronary artery disease(CAD).The automatic classification of SPECT images for different techniques has achieved near-optimal accuracy when using convolutional neural networks(CNNs).This paper uses a SPECT classification framework with three steps:1)Image denoising,2)Attenuation correction,and 3)Image *** denoising is done by a U-Net architecture that ensures effective image *** correction is implemented by a convolution neural network model that can remove the attenuation that affects the feature extraction process of ***,a novel multi-scale diluted convolution(MSDC)network is *** merges the features extracted in different scales and makes the model learn the features more *** scales of filters with size 3×3 are used to extract *** three steps are compared with state-of-the-art *** proposed denoising architecture ensures a high-quality image with the highest peak signal-to-noise ratio(PSNR)value of *** proposed classification method is compared with the five different CNN models,and the proposed method ensures better classification with an accuracy of 96%,precision of 87%,sensitivity of 87%,specificity of 89%,and F1-score of 87%.To demonstrate the importance of preprocessing,the classification model was analyzed without denoising and attenuation correction.

关键词： SPECT-MPI CAD MSDC denoising attenuation correction classification

Colorectal cancers in ulcerative colitis from a low-prevalence area for colon cancer

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World Journal of Gastroenterology 2015年第12期21卷 3644-3649页

作者： Devendra Desai Sudeep Shah Abhijit Deshmukh Philip Abraham Anand joshi Tarun Gupta Ramesh Deshpande varun Khandagale Siji George Division of Gastroenterology P.D Hinduja Hospital Division of Gastrointestinal surgery Department of Surgery P.D Hinduja Hospital Division of Pathology Department of Pathology P.D Hinduja Hospital

AIM: To determine the incidence and risk factors for colorectal cancer(CRC) in patients with ulcerative colitis from a low prevalence region for ***: Our prospective database yielded a cohort of 430 patients [age: 44 ± 14.6 years; 248 men(57.7%)] with ulcerative colitis(median disease duration 6, range: 1-39 years) for analysis. Of these, 131(30.5%) had left-sided colitis and 159(37%) extensive colitis. Patients with histologically confirmed CRC within the segment with colitis were compared with those without CRC, to determine the risk factors for the development of ***: Twelve patients(2.8%) developed CRC. The overall incidence density was 3.56/1000 patient-years of disease- 3/1000 in the first 10 years, 3.3/1000 at 10 to 20 years, and 7/1000 at > 20 years. Three of our 12 patients developed CRC within 8 years of disease onset. On univariate analysis, extensive colitis, longer duration of disease, and poor control of disease were associated with development of CRC. On multivariate analysis, duration of disease and extent of colitis remained ***: CRC occurred in 2.8% of patients with ulcerative colitis in our population- an incidence density similar to that in Western countries in spite of a low overall prevalence of colon cancer in our *** risk increased with extent and duration of disease.

关键词： Colon cancer Dysplasia Epidemiology Inflammatory b

Photometric studies of two W UMa type variables in the field of distant open cluster NGC 6866

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Research in Astronomy and Astrophysics 2016年第4期16卷 87-96页

作者： Yogesh Chandra joshi Rukmini Jagirdar Santosh joshi Aryabhatta Research Institute of Observational Sciences Manora PeakNainital 263002India Center for Advanced Study in Astronomy Osmania UniversityHyderabad 500007India

We present photometric analysis of the two W UMa type binaries identified in the field of distant open star cluster NGC 6866. Although these systems, namely ID487 and ID494, were reported by joshi et al., a detailed study of these stars has not been carried out before. The orbital periods of these stars are found to be 0.415110±0.000001 day and 0.366709±0.000004 day, respectively. Based on the photometric and infrared colors, we find their respective spectral types to be K0 and K3. The photometric light vari- ations of both stars show the O＇Connell effect which can be explained by employing a dark spot on the secondary components. The V and I band light curves are analyzed using the Wilson-Devinney （WD） code and relations given by Gazeas which yield radii and masses for the binary components of star ID487 of R1 = 1.24 ± 0.01R,R2 = 1.11 4- 0.02Re, and M1 = 1.24 ± 0.02Me, M2 = 0.96 ±0.05Me and for star ID494 of R1 = 1.22 ± 0.02Re, R2 = 0.81 4- 0.01 Re, and M1 = 1.20 4- 0.06 Me, M2 = 0.47 4- 0.01 Me.

关键词： methods: observational -- techniques: photometric -- binaries: eclipsing -- stars: fundamen-tal parameters

Building momentum for sustainable behaviors in developing regions using Locally Managed Decentralized Circular Economy principles

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Chinese Journal of Chemical Engineering 2019年第7期27卷 1566-1571页

作者： Chandni joshi Jeffrey Seay Department of Chemical and Materials Engineering University of Kentucky

Despite the current threat from climate change,plastic collecting in the world's oceans,and the steady loss of biodiversity,the world continually fails to take action with regard to our rapidly changing ***,waiting on governments to act is no longer a viable *** change is needed and the pace of diplomacy is simply too *** governments are reactionary and taking action to solve future problems is not a priority,even as the threat of potential ecological catastrophe draws ever *** is in the hands of individuals,and it is our decisions and behaviors that will influence the future of our planet and our ability to inhabit ***,building momentum for sustainable behavior must begin with *** neoliberal approach to environmental protection posits that individuals are motivated by rational self-interest,and that economic incentives are necessary to achieve environmental ***,recent research suggests that monetary gain alone actually negatively impacts behavior,and often neglects the rural *** a result,models for projects designed to benefit the environment need more than just a monetary incentive,they must incorporate all three pillars of sustainability:environment,economy and *** approach for building momentum for sustainable behavior with regard to municipal solid waste management,particularly in the developing world,is by implementing Locally Managed Decentralized Circular Economy(LMDCE)*** contribution will describe the role behavioral economics plays in the choices made by producers and *** results of a case study on applying LMDCE principles in Uganda to manage waste plastic accumulation by conversion to fuel oil will be presented.

关键词： Pyrolysis Fuel Pollution Appropriate technology Behavioral economics Municipal solid waste