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Forecasting of Software Reliability Using Neighborhood Fuzzy Particle Swarm Optimization Based Novel Neural Network

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IEEE/CAA Journal of Automatica Sinica 2019年第6期6卷 1365-1383页

作者： Pratik roy Ghanshaym Singha Mahapatra Kashi nath Dey Department of Computer Science and Engineering University of CalcuttaKolkata-700106India Department of Mathematics National Institute of TechnologyPuducherryKaraikal-609609India

This paper proposes an artificial neural network(ANN) based software reliability model trained by novel particle swarm optimization(PSO) algorithm for enhanced forecasting of the reliability of software. The proposed ANN is developed considering the fault generation phenomenon during software testing with the fault complexity of different levels. We demonstrate the proposed model considering three types of faults residing in the software. We propose a neighborhood based fuzzy PSO algorithm for competent learning of the proposed ANN using software failure data. Fitting and prediction performances of the neighborhood fuzzy PSO based proposed neural network model are compared with the standard PSO based proposed neural network model and existing ANN based software reliability models in the literature through three real software failure data sets. We also compare the performance of the proposed PSO algorithm with the standard PSO algorithm through learning of the proposed ANN. Statistical analysis shows that the neighborhood fuzzy PSO based proposed neural network model has comparatively better fitting and predictive ability than the standard PSO based proposed neural network model and other ANN based software reliability models. Faster release of software is achievable by applying the proposed PSO based neural network model during the testing period.

关键词： Artificial neural network(ANN) fuzzy particle swarm optimization(PSO) reliability prediction software reliability

Exploring the merits of geographical diversification of solar PV power plants for a resilient PV-dominated electricity grid in India

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Clean Energy 2023年第4期7卷 885-910页

作者： Saikat Ghosh Jatindra nath roy Chandan Chakraborty Advanced Technology Development Centre Indian Institute of Technology Kharagpur721302India Department of Electrical Engineering Indian Institute of Technology Kharagpur721302India

India is highly dependent on solar photovoltaics(PV)to harness its vast solar resource potential and combat climate ***,∼90%of the installed PV capacity in India is concentrated in the top nine states,with the remaining states lagging *** research reveals that during monsoons,heavy cloud cover and rain lead to high solar resource variability,intermittency and the risk of very low PV generation,which can result in reliability issues in future PV-dominated electricity *** energy storage can help in overcoming high intermittency,there are multiple challenges associated with *** novelty of this study lies in demonstrating the benefits of combining multiple PV sites in various regions to mitigate the risks of low PV generation and high *** variability of individual sites was found to be up to∼3.5 times higher than the variability of combined *** noon,prominent solar park sites like Bhadla and NP Kunta experience a decrease in power generation to values as low as∼10%of the rated PV ***,the minimum generation of the large-scale dispersed PV generation is>30%.Furthermore,the research identifies other benefits of dispersing PV generation across the country,viz.,reduction of seasonal variability by adding PV capacity in the southern region,widening of the PV generation span,more room for PV capacity addition,reduction in storage and ramping needs,utilization of hydroelectric potential of the north-east and PV potential of Ladakh,and creating opportunities for sustainable development in rural agrarian regions through agrivoltaics.

关键词： decarbonization PV-based resilient grid PV variability and intermittency solar PV power plants

All-optical conversion scheme from binary to its MTN form with the help of nonlinear material based tree-net architecture

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Chinese Optics Letters 2007年第8期5卷 480-483页

作者： Anup Kumar Maiti Jitendra nath roy Sourangshu Mukhopadhyay Department of Electronics Panskura Banamali college MidnapurW.B.India Department of Physics College of Engineering & Management KolaghatKTPP Township.Midnapur(east)W.B.India Department of Physics University of Burdwan GolapbagBurdwanW.B.India

In the field of optical computing and parallel information processing, several number systems have been used for different arithmetic and algebraic operations. Therefore an efficient conversion scheme from one number system to another is very important. Modified trinary number （MTN） has already taken a significant role towards carry and borrow free arithmetic operations. In this communication, we propose a tree-net architecture based all optical conversion scheme from binary number to its MTN form. Optical switch using nonlinear material （NLM） plays an important role.

关键词： tree All-optical conversion scheme from binary to its MTN form with the help of nonlinear material based tree-net architecture net

Soil nitrogen balance assessment and its application for sustainable agriculture and environment

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Science China(Life Sciences) 2005年第Z2期48卷 843-855页

作者： Rabindra nath roy Ram Vimal Misra Land and Water Development Division FAO Rome 00100Italy

Soil nitrogen balance assessment (SNBA) serves as an effective tool for estimating the magnitude of nitrogen loss/gain of the agro-eco systems and to appraise their sustainability. SNBA brings forth awareness of soil fertility problems, besides providing information relating to the resultant release of nitrogen into the environment consequent to agricultural practices. Quantitative information relating to nitrogen escape into the environment through such exercises can be gainfully utilized for identification of causative factors, enhancing fertilizer use efficiency and formulating programmes aimed at plugging N leakages. An overview of nitrogen balance approaches and methodologies is presented. A deeper understanding and insight into the agro-eco systems provided by the SNBA exercises can lay the basis for the formulation of effective agronomic interventions and policies aimed at promoting sustainable agriculture and a benign environment.

关键词： nitrogen balance soil fertility sustainable agriculture nutrient flows and macro meso and micro levels

All-optical adder/subtractor based on terahertz optical asymmetric demultiplexer

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Chinese Optics Letters 2009年第6期7卷 530-533页

作者： Dilip Kumar Gayen Rajat Kumar Pal Jitendra nath roy Department of Computer Science College of Engineering and Management Department of Computer Science and Engineering Calcutta University Department of Physics College of Engineering and ManagementKolaghat KTPP Township

An all-optical adder/subtractor （A/S） unit with the （TOAD） is proposed. The all-optical A/S unit with help of terahertz optical asymmetric demultiplexer a set of all-optical full-adders and optical exclusive- ORs （XORs）, can be used to perform a fast central processor unit using optical hardware components. We try to exploit the advantages of TOAD-based optical switch to design an integrated all-optical circuit which can perform binary addition and subtraction. With computer simulation results confirming the described methods, conclusions are given.

关键词： EDFA XOR All-optical adder/subtractor based on terahertz optical asymmetric demultiplexer mode

Designing of an all-optical time division multiplexing scheme with the help of nonlinear material based tree-net architecture

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Chinese Optics Letters 2006年第8期4卷 483-486页

作者： Jitendra nath roy Anup Kumar Maiti Sourangshu Mukhopadhyay College of Engineering & Management Kolaghat KTPP TownshipMidnapur (east) 721171 W.B.India Panskura Banamali College Midnapur W.B.India Department of Physics University of Burdwan GolapbagBurdwanW.B.India

In the field of optical interconnecting network and in super fast photonic computing system, the tree architecture and optical nonlinear materials can play a significant role. Nonlinear optical material may find important uses in optical switching. Optical switch using nonlinear material makes it possible for one optical signal to control and switch another optical signal through nonlinear interaction in a material. In this communication such materials have been successfully exploited to design an all-optical tree-net architecture, which can be utilized for time division multiplexing scheme in all-optical domain.

关键词： tree Designing of an all-optical time division multiplexing scheme with the help of nonlinear material based tree-net architecture time net

In vitro screening of probiotic properties of Lactobacillus plantarum isolated from fermented milk product

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Food Quality and Safety 2020年第4期4卷 213-223页

作者： Soumitra nath Jibalok Sikidar Monisha roy Bibhas Deb Department of Biotechnology Gurucharan CollegeSilcharIndia Institutional Biotech Hub Gurucharan CollegeSilcharIndia

Objectives:The screening of traditional fermented products is essential for the assessment of safety,security,and further development of functional foods for the well-being of human *** aim of the present study was to isolate and identify bacteria from fermented raw milk samples that exhibit health benefits upon ***:In order to confirm the isolates as probiotics,several in vitro assays were conducted to assess the probiotic properties of isolated *** initial screening includes tolerance to acid,bile,pancreatin,and *** cell surface properties demonstrate their interaction with mucosal epithelium,which includes hydrophobicity and auto-aggregation *** assessment was done by performing haemolytic test and antibiotic susceptibility *** antagonistic activity of probiotic strain was further evaluated against some pathogenic ***:Lactobacillus plantarum(***)isolated from fermented raw milk was preliminarily identified by biochemical tests and further confirmed using 16S rRNA *** isolate designated as *** strain GCC_19M1 demonstrated significant tolerance to low pH,0.3%bile,0.5%pancreatin,and 5%*** the presence of simulated gastric juice(at pH 3),the isolate exhibited a survival rate of 93.48-96.97%.Furthermore,the development of ecological niches in the human gut and their successful accumulation have been revealed by auto-aggregation and hydrophobicity *** of haemolytic activity ensures the non-virulent nature of the *** plantarum strain GCC_19M1 showed susceptibility towards gentamicin,tetracycline,kanamycin,meropenem,and ceftriaxone and exhibited an antagonistic effect on pathogenic ***:The obtained results conveyed that *** strain GCC_19M1 has strong probiotic potential,and its presence in the fermented raw milk products may serve as a potent functional probiotic food.

关键词： raw milk probiotic Lactobacillus plantarum gastric juice auto-aggregation hydrophobicity

Pediatric intrahepatic bile duct adenoma-rare liver tumor: A case report

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World Journal of Gastrointestinal Surgery 2019年第11期11卷 414-421页

作者： Anup Kumar roy Nrityen nath Das Department of Surgery Downtown HospitalGuwahatiAssam 781006India Hepato-biliary and Liver Transplant Center Downtown HospitalGuwahatiAssam 781006India

BACKGROUND Intrahepatic bile duct adenoma(BDA)is one of the rarest of the rare benign tumors of the liver in the pediatric age *** arises from the epithelial lining of intrahepatic bile *** overall incidence of BDA is 1.3%of all primary benign liver *** case reports of this rare tumor occurring in adult population are present in the literature and to date,only one pediatric case has been reported *** SUMMARY An 18-month-old male child presented with chief complaints of mass per abdomen for 8 *** tomography abdomen revealed a well-defined exophytic solid tumor arising from the posteroinferior margin of the right lobe of the liver with heterogenous enhancement and cystic changes,suggesting a suspicion of ***-anatomical liver resection was done and a tumor of 10 cm×9.5 cm was *** of the specimen was conclusive with the diagnosis of intrahepatic bile duct adenoma,which was further supported by immunohistochemistry panel *** post-operative period was *** follow-up,the child was doing well and had no postoperative *** Intrahepatic bile duct adenoma in children is very rare and to date only one case has been *** is the second pediatric case of intrahepatic bile duct adenoma in the *** this is the first ever case of such a large tumor presenting in a child.

关键词： Bile duct adenoma Peribiliary gland hamartoma Benign liver tumor Pediatric liver tumor Case report

All-optical prefix tree adder with the help of terahertz optical asymmetric demultiplexer

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Chinese Optics Letters 2011年第6期9卷 82-86页

作者： Dilip Kumar Gayen Tanay Chattopadhyay Rajat Kumar Pal Jitendra nath roy Department of Computer Science College of Engineering and Management Kolaghat KTPP Township Mechanical Operation (Stage-II) Kolaghat Thermal Power Station WBPDCL Mecheda Purba Medinipur KTPP Sub Post Office Department of Computer Science and Engineering Calcutta University Department of Physics NIT Agartala

We propose and describe an all-optical prefix tree adder with the help of a terahertz optical asymmetric demultiplexer （TOAD） using a set of optical switches. The prefix tree adder is useful in compound adder implementation. It is preferred over the ripple carry adder and the carry lookahead adder. We also describe the principle and possibilities of the all-optical prefix tree adder. The theoretical model is presented and verified through numerical simulation. The new method promises higher processing speed and accuracy. The model can be extended for studying more complex all-optical circuits of enhanced functionality in which the prefix tree adder is the basic building block.

关键词： tree All-optical prefix tree adder with the help of terahertz optical asymmetric demultiplexer XOR SOA