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Test Cost Optimization Using Tabu Search

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Journal of Software Engineering and Applications 2010年第5期3卷 477-486页

作者： Anu Sharma Arpita Jadhav praveen ranjan srivastava Renu Goyal Computer Science and Information System Group Birla Institute of Technology and Science Pilani India.

In order to deliver a complete reliable software product, testing is performed. As testing phase carries on, cost of testing process increases and it directly affects the overall project cost. Many a times it happens that the actual cost becomes more than the estimated cost. Cost is considered as the most important parameter with respect to software testing, in software industry. In recent year’s researchers have done a variety of work in the area of Cost optimization by using various concepts like Genetic Algorithm, simulated annealing and Automation in generation of test data etc. This paper proposes an efficient cost effective approach for optimizing the cost of testing using Tabu Search (TS), which will provide maximum code coverage along with the concepts of Dijkstra’s Algorithm which will be implemented in Aspiration criteria of Tabu Search in order to optimize the cost and generate a minimum cost path with maximum coverage.

关键词： Tabu Search Test Cost Optimization Dijikstra’s Algorithm

Test Effort Estimation Using Neural Network

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Journal of Software Engineering and Applications 2010年第4期3卷 331-340页

作者： Chintala Abhishek Veginati Pavan Kumar Harish Vitta praveen ranjan srivastava Department of Computer Science and Information System Birla Institute of Technology and Science Pilani India.

In software industry the major problem encountered during project scheduling is in deciding what proportion of the resources has allocated to the testing phase. In general it has been observed that about 40%-50% of the resources need to be allocated to the testing phase. However it is very difficult to predict the exact amount of effort required to be allocated to testing phase. As a result the project planning goes haywire. The project which has not been tested sufficiently can cause huge losses to the organization. This research paper focuses on finding a method which gives a measure of the effort to be spent on the testing phase. This paper provides effort estimates during pre-coding and post-coding phases using neural network to predict more accurately.

关键词： Test Effort Estimation Neural Network Use Case Points Halstead Model

Liquid-liquid extraction of phosphorus from sulfuric acid solution using benzyl dimethyl amine

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International Journal of Minerals,Metallurgy and Materials 2021年第3期28卷 367-372页

作者： Sadia Ilyas Rajiv ranjan srivastava Hyunjung Kim Department of Mineral Resources and Energy Engineering Jeonbuk National UniversityJeonjuJeonbuk 54896Republic of Korea Center for Advanced Chemistry Institute of Research and DevelopmentDuy Tan UniversityDa Nang 550000Vietnam Faculty of Natural Sciences Duy Tan UniversityDa Nang 550000Vietnam

This study addresses the liquid-liquid extraction behavior of phosphorus from a sulfuric acid solution using benzyl dimethyl amine(BDMA)in *** extraction equilibria investigated with varied BDMA concentrations could reveal the formation of 3[BDMA]·[H_(3)PO_(4)]^(-)complex in the organic *** thermodynamic properties determined at various temperatures indicated that the process was exothermic with a calculated enthalpy(△H^(Θ))of−24.0 kJ·mol^(−1).The organic-to-aqueous phase(O/A)volume ratio was varied to elucidate the quantitative extraction of *** McCabe-Thiele diagram plotted for the extraction isotherm was validated for the requirement of three counter-current stages in the extraction at an O/A volume ratio of 2.0/*** back-extraction of phosphorus from the loaded organic phase was quantitatively achieved by contacting 4.0 mol·L−1 H2SO4 solution in three stages of counter-current contact at an O/A volume ratio of 3/*** study can be applied to remove phosphorus from the sulfuric acid leach solutions of monazite processing,and many other solutions.

关键词： solvent extraction phosphorus benzyl dimethyl amine(BDMA) sulfuric acid solution McCabe-Thiele diagram

Linking basin-scale hydrology with climatic parameters in western Himalaya:Application of satellite data,temperature index modelling and in-situ observations

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Geoscience Frontiers 2024年第6期15卷 528-544页

作者： Smriti srivastava MohdFarooq Azam praveen Kumar Thakur The Wilkes Centre for Climate Science and Policy University of UtahSalt Lake CityUSA School of Environment Society and SustainabilityUniversity of UtahSalt Lake CityUSA Department of Civil Engineering Indian Institute of Technology IndoreIndia Department of Water Resources Indian Institute of Remote Sensing(IIRS)ISRODehradunIndia

Due to limited spatial and temporal in-situ runoff data availability,Himalaya-Karakoram(HK)glaciohydrology has a significant knowledge gap between large-scale and small-scale runoff modelling *** study reconstructs longest basin-wide runoff series in Chandra-Bhaga Basin by applying a high-resolution glaciohydrological model SPHY(Spatial Processes in Hydrology)over 1950–***-tier model calibration is done using in-situ basin-wide runoff(1973–2006)and MODIS snow cover(2003–2018).Model validation is done against in-situ Chhota Shigri Glacier catchment-wide runoff(2010–2015).The modelled mean annual basin-wide runoff is 60.21±6.17 m^(3)/s over 1950–2022,with maximum runoff in summer-monsoon months,peaking in July(182.69 m^(3)/s).Glacier runoff(ice melt+snowmelt over glacier)contributes maximum(39%)followed by equal contributions from snowmelt runoff from non-glacierized basin area and baseflow(25%),while rainfall-runoff contributes minimum(11%)to total *** is a significant volumetric increase by∼7%from pre-(59.17 m^(3)/s)to post-2000(63.47 m^(3)/s)mainly because of early onset of snowmelt post-2000 that resulted in a hydrograph shift by∼25 days earlier in *** glacier runoff is overestimated by 3%from RGI 7.0 inventory compared to different manually delineated inventories over 1950–2022,because of higher glacierized area from RGI *** precipitation shows a negative trend,but total runoff shows a positive trend due to positive trend of temperature that resulted in more glacier runoff and rainfall-runoff for basin over last 72 ***-wide runoff is mainly governed by summer temperature which directly controls the amount of glacier and snowmelt runoffs and is supported by summer *** study highlights importance of basin-scale model calibration with in-situ data in large scale studies and stresses the need for in-situ observations in high-altitude Himalayan ***-scale calibrated model parameters are transferable to glacie

关键词： Himalaya Glaciohydrological model Glacier runoff Baseflow Pre-and post-2000 Chandra-Bhaga Basin

Thermogram Adaptive Efficient Model for Breast Cancer Detection Using Fractional Derivative Mask and Hybrid Feature Set in the IoT Environment

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Computer Modeling in Engineering & Sciences 2022年第2期130卷 923-947页

作者： Ritam Sharma JankiBallabh Sharma ranjan Maheshwari praveen Agarwal Rajasthan Technical University KotaRajasthan324010India Anand International College of Engineering Jaipur303012India Nonlinear Dynamics Research Center(NDRC) Ajman UniversityAjman20550United Arab Emirates International Center for Basic and Applied Sciences Jaipur302029India Institute of MathematicalModeling Almaty050000Kazakhstan

In this paper,a novel hybrid texture feature set and fractional derivative filter-based breast cancer detection model is *** paper also introduces the application of a histogram of linear bipolar pattern features(HLBP)for breast thermogram ***,breast tissues are separated by masking operation and filtered by Gr¨umwald–Letnikov fractional derivative-based Sobel mask to enhance the texture and rectify the noise.A novel hybrid feature set usingHLBP and other statistical feature sets is derived and reduced by principal component *** basis function kernel-based support vector machine is employed for detecting the abnormality in the *** performance parameters are calculated using five-fold cross-validation scheme using MATLAB 2015a simulation *** proposedmodel achieves the classification accuracy,sensitivity,specificity,and area under the curve of 94.44%,95.55%,92.22%,96.11%,respectively.A comparative investigation of different texture features with respect to fractional orderαto classify the breast malignancy is also *** proposed model is also compared with a few existing state-of-art schemes which verifies the efficacy of the *** orderαoffers extra adaptability in overcoming the limitations of thermal imaging techniques and assists radiologists in prior breast cancer *** proposed model is more generalized which can be used with different thermal image acquisition protocols and IoT based applications.

关键词： Thermal image breast cancer fractional derivative mask image texture analysis feature extraction radial basis function machine learning

Brachytherapy in cancer cervix: Time to move ahead from point A?

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World Journal of Clinical Oncology 2014年第4期5卷 764-774页

作者： Anurita srivastava Niloy ranjan Datta Department of Radiation Oncology Medanta the Medicity Centre for Radiation Oncology KSA-KSB Kantonsspital Aarau Aargau CH 5034 Switzerland

Brachytherapy forms an integral part of the radiation therapy in cancer cervix. The dose prescription for intracavitary brachytherapy(ICBT) in cancer cervix is based on Tod and Meredith's point A and has been in practice since 1938. This was proposed at a time when accessibility to imaging technology and dose computation facilities was limited. The concept has been in practice worldwide for more than half a century and has been the fulcrum of all ICBT treatments, strategies and outcome measures. The method is simple and can be adapted by all centres practicing ICBT in cancer cervix. However, with the widespread availability of imaging techniques, clinical use of different dose-rates, availability of a host of applicators fabricated with image compatible materials, radiobiological implications of dose equivalence and its impact on tumour and organs at risk; more and more weight is being laid down on individualised image based brachytherapy. Thus, computed tomography, magnetic-resonance imaging and even positron emission computerized tomographyalong with brachytherapy treatment planning system are being increasingly adopted with promising outcomes. The present article reviews the evolution of dose prescription concepts in ICBT in cancer cervix and brings forward the need for image based brachytherapy to evaluate clinical outcomes. As is evident, a gradual transition from "point" based brachytherapy to "profile" based image guided brachytherapy is gaining widespread acceptance for dose prescription, reporting and outcome evaluation in the clinical practice of ICBT in cancer cervix.

关键词： Cancer cervix Intracavitary brachytherapy Point A Image guided brachytherapy Computed tomography-guided brachytherapy Magnetic resonance imaging-guided brachytherapy Ultrasound guided brachytherapy

Visible light photocatalysis in the synthesis of pharmaceutically relevant heterocyclic scaffolds

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Organic Chemistry Frontiers 2022年第5期9卷 1485-1507页

作者： Vishal srivastava Pravin K.Singh Shraddha Tivari praveen P.Singh Department of Chemistry CMP Degree CollegeUniversity of AllahabadPrayagraj 211002India Department of Chemistry United College of Engineering&ResearchNainiPrayagraj 211010India

Visible light and photoredox catalysis have emerged as a powerful and long-lasting tool for organic syn-thesis,demonstrating the importance of a variety of chemical bond formation *** products,physiologically active substances,medicines,and agrochemicals all contain heterocyclic *** impact of visible light-promoted chemistry on the functionalization of heterocycles as well as the syn-thesis and modification of heterocyclic compounds of medicinal importance is summarized in this review.

关键词： heterocyclic Visible synthesis

All-optical active THz metasurfaces for ultrafast polarization switching and dynamic beam splitting

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Light(Science & Applications) 2018年第1期7卷 766-774页

作者： Longqing Cong Yogesh Kumar srivastava Huifang Zhang Xueqian Zhang Jiaguang Han ranjan Singh Division of Physics and Applied Physics School of Physical and Mathematical SciencesNanyang Technological University21 Nanyang LinkSingapore 637371Singapore Centre for Disruptive Photonic Technologies The Photonics InstituteNanyang Technological University50 Nanyang AvenueSingapore 639798Singapore Center for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering Key Laboratory of Optoelectronic Information TechnologyMinistry of EducationTianjin University300072 TianjinPeople’s Republic of China

Miniaturized ultrafast switchable optical components with an extremely compact size and a high-speed response will be the core of next-generation all-optical devices instead of traditional integrated circuits,which are approaching the bottleneck of Moore’s *** have emerged as fascinating subwavelength flat optical components and devices for light focusing and holography ***,these devices exhibit a severe limitation due to their natural passive *** we introduce an active hybrid metasurface integrated with patterned semiconductor inclusions for all-optical active control of terahertz *** modulation of polarization states and the beam splitting ratio are experimentally demonstrated on a time scale of 667 *** scheme of hybrid metasurfaces could also be extended to the design of various free-space all-optical active devices,such as varifocal planar lenses,switchable vector beam generators,and components for holography in ultrafast imaging,display,and high-fidelity terahertz wireless communication systems.

关键词： polarization optical beam

Modulation of signal transduction pathways by natural compounds in cancer

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Chinese Journal of Natural Medicines 2015年第10期13卷 730-742页

作者： Alok ranjan Neel M.Fofaria Sung-Hoon Kim Sanjay K.srivastava Department of Biomedical Sciences and Cancer Biology Center Texas Tech University Health Sciences Center Cancer Preventive Material Development Research Center College of Korean Medicine Department of Pathology Kyunghee University

Cancer is generally regarded as the result of abnormal growth of cells. According to World Health Organization, cancer is the leading cause of mortality worldwide. Mother nature provides a large source of bioactive compounds with excellent therapeutic efficacy. Numerous phytochemicals from nature have been investigated for anticancer properties. In this review article, we discuss several natural compounds, which have shown anti-cancer activity. Natural compounds induce cell cycle arrest, activate intrinsic and extrinsic apoptosis pathways, generate Reactive Oxygen Species(ROS), and down-regulate activated signaling pathways, resulting in inhibition of cell proliferation, progression and metastasis of cancer. Several preclinical studies have suggested that natural compounds can also increase the sensitivity of resistant cancers to available chemotherapy agents. Furthermore, combining FDA approved anti-cancer drugs with natural compounds results in improved efficacy. On the basis of these exciting outcomes of natural compounds against several cancer types, several agents have already advanced to clinical trials. In conclusion, preclinical results and clinical outcomes against cancer suggest promising anticancer efficacy of agents from natural sources.

关键词： Natural compounds Capsaicin Curcumin Diindolylmethane(DIM) Isothiocyanate Piperine Deguelin Cucurbitacin B Cancer