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Reactive power deployment and cost benefit analysis in DNO operated distribution electricity markets with D-STATCOM

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Frontiers in Energy 2019年第1期13卷 86-98页

作者： Atma Ram gupta Ashwani kumar Department of Electrical Engineering National Institute of TechnologyKurukshetraIndia

The aim of this paper is to analyze unbalanced radial distribution systems(UBRDS)with the distribution static compensator(D-STATCOM).The main objectives of this paper are D-STATCOM allocation in UBRDS with an objective of providing reactive power support to enhance voltage profile and reduce line losses of the distribution network,determination of optimal D-STATCOM rating subjected to minimization of total cost,and impact of D-STATCOM placement on improving power factor and savings in cost of energy *** analysis is conducted on a large industrial load model with light,medium and high loading ***,the impact of load growth is also considered for better planning of the power distribution *** results are obtained on standard 25-bus UBRDS to check the feasibility of the proposed methodology.

关键词： unbalanced distribution system D-STATCOM voltage sensitivity index load models load growth distribution network operator(DNO)

A Survey of Dynamic Software Metrics

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Journal of Computer Science & Technology 2010年第5期25卷 1016-1029页

作者： Jitender kumar Chhabra Varun gupta Department of Computer Engineering National Institute of TechnologyKurukshetra-136119India

Software metrics help us to make meaningful estimates for software products and guide us in taking managerial and technical ***,conventional static metrics have been found to be inadequate for modern object-oriented software due to the presence of object-oriented features such as polymorphism,dynamic binding,inheritance and unused *** fact motivates us to focus on dynamic metrics in place of traditional static ***,dynamic metrics are more precise than static metrics as they are able to capture the dynamic behaviour of the software system during *** dynamic metrics are usually obtained from the execution traces of the code or from the executable *** this paper,advantages of dynamic metrics over static metrics are discussed and then a survey of the existing dynamic metrics is carried *** metrics are characterized into different categories such as dynamic coupling metrics, dynamic cohesion *** end of the paper,potential research challenges and opportunities in the field of dynamic metrics are identified.

关键词： metrics object-oriented programming software engineering

Package Coupling Measurement in Object-Oriented Software

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Journal of Computer Science & Technology 2009年第2期24卷 273-283页

作者： Varun gupta Jitender kumar Chhabra Department of Computer Engineering National Institute of TechnologyKurukshetra

The grouping of correlated classes into a package helps in better organization of modern object-oriented software. The quality of such packages needs to be measured so as to estimate their utilization. In this paper, new package coupling metrics are proposed, which also take into consideration the hierarchical structure of packages and direction of connections among package elements. The proposed measures have been validated theoretically as well as empirically using 18 packages taken from two open source software systems. The results obtained from this study show strong correlation between package coupling and understandability of the package which suggests that proposed metrics could be further used to represent other external software quality factors.

关键词： package coupling metrics object-oriented software understandability

Analysis of the wave properties of a new two-lane continuum model with the coupling effect

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Chinese Physics B 2012年第1期21卷 295-309页

作者： Arvind kumar gupta Sapna Sharma Department of Mathematics Indian Institute of Technology Ropar Department of Mathematics Birla Institute of Technology & Science Pilani

A multilane extension of the single-lane anisotropic continuum model （GK model） developed by gupta and Katiyar for traffic flow is discussed with the consideration of the coupling effect between the vehicles of different lanes in the instantaneous traffic situation and the lane-changing effect. The conditions for securing the linear stability of the new model are presented. The shock and the rarefaction waves, the local cluster effect and the phase transition are investigated through simulation experiments with the new model and are found to be consistent with the diverse nonlinear dynamical phenomena observed in a real traffic flow. The analysis also focuses on empirically observed two- lane phenomena, such as lane usage inversion and the density dependence of the number of lane changes. It is shown that single-lane dynamics can be extended to multilane cases without changing the basic properties of the single-lane model. The results show that the new multilane model is capable of explaining some particular traffic phenomena and is in accordance with real traffic flow.

关键词： two-lane traffic numerical simulation lane usage inversion

Nonlinear analysis of traffic jams in an anisotropic continuum model

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Chinese Physics B 2010年第11期19卷 156-164页

作者： Arvind kumar gupta Sapna Sharma Department of Mathematics IIT Ropar-140001India Mathematics Group Birla Institute of Technology and SciencePilani-333031India

This paper presents our study of the nonlinear stability of a new anisotropic continuum traffic flow model in which the dimensionless parameter or anisotropic factor controls the non-isotropic character and diffusive influence. In order to establish traff^c flow stability criterion or to know the critical parameters that lead, on one hand, to a stable response to perturbations or disturbances or, on the other hand, to an unstable response and therefore to a possible congestion, a nonlinear stability criterion is derived by using a wavefront expansion technique. The stability criterion is illustrated by numerical results using the finite difference method for two different values of anisotropic parameter. It is also been observed that the newly derived stability results are consistent with previously reported results obtained using approximate linearisation methods. Moreover, the stability criterion derived in this paper can provide more refined information from the perspective of the capability to reproduce nonlinear traffic flow behaviors observed in real traffic than previously established methodologies.

关键词： traffic flow non-linear stability wavefront method

Prevalence and risk factors associated with Japanese encephalitis virus infection in swine population of Assam,India

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Asian Pacific Journal of Tropical Medicine 2022年第11期15卷 503-510,I0001-I0009页

作者： Mir Hussain Himani Dhanze Deepa Mehta M.Suman kumar Ravi kumar Gandham Megha gupta AG Barua K.P Suresh Balbir B Singh Division of Veterinary Public Health ICAR-Indian Veterinary Research InstituteIzatnagarBareillyIndia Division of Animal Biotechnology ICAR-Indian Veterinary Research InstituteIzatnagarBareillyIndia Department of Veterinary Public Health College of Veterinary ScienceAssam Agricultural UniversityGuwahatiAssamIndia ICAR-National Institute of Veterinary Epidemiology and Disease Informatics BengaluruIndia Centre for One Health Guru Angad Dev Veterinary&Animal Sciences UniversityPunjabIndia

Objective:To assess the prevalence of Japanese encephalitis virus(JEV)and associated risk factors in the swine population of ***:A total of 432 swine serum and blood samples were collected from Barpeta and Sonitpur districts of Assam and were screened for the presence of JEV *** related to risk factors was collected using a self-designed questionnaire from 120 swine-rearing ***-mixed models were used for prevalence *** and multivariate regression models were constructed to evaluate the association of demography,season and management practices with JEV positive ***:Overall,the JEV infection prevalence was 51.6%at farm and 47.1%at slaughter *** analysis of partial sequence of envelope gene of two positive field samples revealed that both isolates belonged to genotypeⅢ*** 1 shared a common clade with human isolates while isolate 2 belonged to the same clade as that of other JEV swine strain isolated from *** final multivariate model showed that two factors including monsoon season(Adjusted OR 5.6;95%CI 2.1-14.9;P<0.001)and water logging in the area near the pig shelter(Adjusted OR 16.9;95%CI 6.1-47.3;P<0.001)were associated with greater odds of swine being infected with ***:High prevalence of JEV in swine population of Assam state indicates a significant risk of virus transmission to humans while risk factor study underlines the urgent need for awareness campaigns in the Assam.

关键词： Japanese encephalitis virus Genotypes Prevalence Risk factors Swine

Phenomenology,disability and sexual functioning in female Dhat syndrome:a study of tertiary care gynaecology outpatients

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General Psychiatry 2022年第5期35卷 328-337页

作者： Shubha Joshi Adarsh Tripathi Smriti Agarwal Nisha Singh Bandna gupta Anil Nischal Sujita kumar Kar Department of Geriatric Mental Health King George's Medical UniversityLucknowUttar PradeshIndia Department of Psychiatry King George's Medical UniversityLucknowUttar PradeshIndia Department of Gynaecology and Obstetrics King George's Medical UniversityLucknowUttar PradeshIndia

Background Dhat syndrome,a clinical condition related to semen loss in urine often found among males in India,has rarely been described as a separate clinical condition in *** with the syndrome complain of passing vaginal discharge and can be excessively concerned and preoccupied with it,often attributing various physical symptoms to the loss of vaginal *** This study aimed to assess the sociodemographic and clinical profiles of female patients with Dhat syndrome and their perceived stress,disability and sexual *** Sociodemographic details of 70 females with non-pathological vaginal discharge were evaluated with a semistructured sociodemographic *** phenomenology of the vaginal discharge was assessed with the Scale for Assessment of Female Dhat Syndrome *** and depressive symptoms were measured with the Hospital Anxiety and Depression *** stress in the past month and disability caused by the illness were assessed with the Perceived Stress Scale and the World Health Organization Disability Assessment *** addition,the Diagnostic and Statistical Manual of Mental Disorders,Fifth Edition,Level 2 Somatic Symptoms Scale was administered to rate the severity of somatic symptoms,and sexual functioning was evaluated using the Female Sexual Function Index(FSFI)scale for women who had had sexual intercourse in the past *** The mean age of onset vaginal discharge was 23.0(6.6)*** factors,such as urinary tract infection,were the commonly attributed cause of the loss of vaginal *** comorbidity and perceived moderate stress in the past month were found in 38.6%and 68.6%of female patients with Dhat syndrome,*** scores tended to be *** the females having had sexual intercourse in the past month,48.3%had FSFI scores indicative of a female sexual *** The clinical presentation of women with non-pathological vaginal discharge is

关键词： female sexual details

Validation of Vesical Imaging Reporting and Data System score for the diagnosis of muscle-invasive bladder cancer: A prospective cross-sectional study

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Asian Journal of Urology 2022年第4期9卷 467-472页

作者： Kumawat Ghanshyam Vyas Nachiket Sharma Govind Priyadarshi Shivam gupta Bhagwan Sahay Singla Mohit kumar Ashok Department of Urology Sawai Man Singh Medical College and HospitalJaipurRajasthanIndia

Objective:Vesical Imaging Reporting and Data System(VIRADS)score was developed to standardize the reporting and staging of bladder tumors on pre-operative multiparametric magnetic resonance *** helps in avoiding unnecessary repeat transurethral resection of bladder tumor in high-risk non-muscle-invasive bladder cancer *** study was done to determine the validity of VIRADS score prospectively for the diagnosis of muscleinvasive bladder ***:This study was conducted from March 2019 to March 2020 at Sawai Man Singh Medical College and Hospital,Jaipur,Rajasthan,*** admitted with the provisional diagnosis of bladder tumor were included as *** these patients underwent a 3 Tesla mpMRI to obtain a VIRADS score before they underwent transurethral resection of bladder tumor and these data were analyzed to evaluate the correlation of pre-operative VIRADS score with mus-cle invasiveness of the tumor in final biopsy ***:A cut-off of VIRADS≥4 for prediction of detrusor muscle invasion yielded a sensitivity of 79.4%,specificity of 94.2%,positive predictive value of 90.0%,negative predictive value of 87.5%,and diagnostic accuracy of 86.4%.A cut off of VIRADS≥3 for prediction of detrusor muscle invasion yielded a sensitivity of 91.2%,specificity of 78.8%,positive predictive value of 73.8%,negative predictive value of 93.2%,and accuracy of 83.7%.The receiver operating curve showed the area under the curve to be 0.922(95%confidence interval:0.862e0.983).Conclusion:VIRADS score appears to be an excellent and effective pre-operative radiological tool for the prediction of detrusor muscle invasion in bladder cancer.

关键词： Vesical Imaging Reporting and Data System Bladder tumor Multiparametric magnetic resonance imaging Detrusor invasion

INFLUENCE OF RIGID BOUNDARY ON THE LOVE WAVE PROPAGATION IN ELASTIC LAYER WITH VOID PORES

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Acta Mechanica Solida Sinica 2013年第5期26卷 551-558页

作者： Sumit kumar Vishwakarma Shishir gupta Dinesh kumar Majhi Department of Applied Mathematics Indian School of Mines Department of Mathematics Birla Institute of Technology and Science

In this paper, a mathematical model for Love wave propagation in a porous elastic layer under a rigid boundary resting over a poro-elastic half-space has been developed. The study shows that such a medium transmits two types of Love waves. The first front depends on the change in volume fraction of the pores whereas the second front depends upon the modulus of rigidity of the elastic matrix of the medium and is the same as the Love wave in an elastic layer over an elastic half-space. It is observed that the first front is many times faster than the shear wave in the medium with void pores due to the change in the volume fraction of the pores and is significant.

关键词： Love waves void pores volume fraction rigid boundary wave front