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Journal of Rare Earths 2020年第12期38卷 1281-1287页

作者： H.N.Shivananjaiah K.Sailaja kumari M.S.Geetha Government Science College Nrupatunga RoadBangalore560001India Base Educational Services BasavanagudiBangalore560004India

The present paper summarises the synthesis of La3+doped zinc oxide nanoparticles using Aloe vera gel by solution combustion method and the characterization using a powder X-ray diffractometer(PXRD),a transmission electron microscope(TEM),an X-ray photometric spectrometer(XPS),a Raman spectrometer and their applications in optical devices and latent *** pattern confirms the crystallite size of La3+doped ZnO varies from 13 to 20 *** size varies inversely with doping *** properties are found to be the maximum for 2 mol% doping *** spectra extends the use of ZnO:La3+nanoparticles in blue green *** nanoparticles also have superior property as a fluorescent labels in fingerprints.

关键词： Green synthesis Nanostructures Photoluminescence Latent fingerprinting Rare earths

Maturity status classification of papaya fruits based on machine learning and transfer learning approach

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Information Processing in Agriculture 2021年第2期8卷 244-250页

作者： Santi kumari Behera Amiya Kumar Rath Prabira Kumar Sethy Department of Computer Science and Engineering Veer Surendra Sai University of TechnologyOdisha 768017India Department of Electronics Sambalpur UniversityOdisha 76819India

Papaya(Carica papaya)is a tropical fruit having commercial importance because of its high nutritive and medicinal *** packaging of papaya fruit as per its maturity status is an essential task in the fruit *** manual grading of papaya fruit based on human visual perception is time-consuming and *** objective of this paper is to suggest a novel non-destructive maturity status classification of papaya *** paper suggested two approaches based on machine learning and transfer learning for classification of papaya maturity ***,a comparative analysis is carried out with different methods of machine learning and transfer *** experimentation is carried out with 300 papaya fruit sample images which includes 100 of each three maturity *** machine learning approach includes three sets of features and three classifiers with their different kernel *** features and classifiers used in machine learning approaches are local binary pattern(LBP),histogram of oriented gradients(HOG),Gray Level Cooccurrence Matrix(GLCM)and k-nearest neighbour(KNN),support vector machine(SVM),Naı¨ve Bayes *** transfer learning approach includes seven pretrained models such as ResNet101,ResNet50,ResNet18,VGG19,VGG16,GoogleNet and *** weighted KNN with HOG feature outperforms other machine learningbased classification model with 100%of accuracy and 0.0995 s training ***,among the transfer learning approach based classification model VGG19 performs better with 100%accuracy and 1 min 52 s training time with consideration of early stop *** proposed classification method for maturity classification of papaya fruits,***19 based on transfer learning approach achieved 100%accuracy which is 6%more than the existing method.

关键词： Papaya fruits Machine learning Transfer learning Maturity status Classification

Effect of processing on the antioxidant activities of porridges and Pittu prepared from finger millets (Eleusine coracana)

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Food Production, Processing and Nutrition 2022年第1期4卷 235-248页

作者： Anoma Chandrasekara Indraneela Senanayake Disna kumari Fereidoon Shahidi Department of Applied Nutrition Wayamba University of Sri LankaMakanduraColombo 60170GonawilaSri Lanka Department of Biochemistry Memorial University of NewfoundlandSt.John’sNL A1B 3X9Canada

Finger millets are important coarse grains that exhibit high levels of phenolic compounds and antioxidant activities among other cereals. Grains are subjected to a number of thermal treatments and this could affect the contents and bioactivities of phenolic compounds. The aim of the present study was to determine the phenolic contents and antioxidant activities of finger millet flour and foods, namely porridges and Pittu subjected to several thermal treatments such as roasting, parboiling, and parboiled roasting of flour and open boiling and steaming of foods prepared using flour. The effect of the addition of spices on phenolic content and antioxidant activities to open boiled foods was determined. Antioxidant activities of phenolic extracts obtained from finger millet flour and foods were studied for their total phenolic, flavonoids and proanthocyanidins contents, radical scavenging capacities, reducing power, ferrous ion chelating capacity, and antioxidant activity in a β-carotene/linoleate emulsion. The roasted flour and foods had higher total phenolic content (TPC) than other counterparts and ranged from 21.58 to 28.63 µmol ferulic acid equivalents/g dry matter. All flour and food preparations exhibited effective inhibition of radicals, reducing power, ferrous ion chelating activity, and antioxidant activity in the β-carotene/linoleate emulsion and the degree of activity depended on the processing conditions adopted in food *** prepared using steaming showed lower phenolic content and antioxidant activities in general than those of open-boiled counterparts. The addition of spices, namely garlic and cinnamon improved the phenolic contents and antioxidant activities of open-boiled porridges. The knowledge generated from this study may help to exploit the use of finger millets as a functional food ingredient to promote health and wellness.

关键词： Antioxidants Parboiling Roasting Pittu Porridges

Reflection and refraction of plane waves at the boundary of an elastic solid and double-porosity dual-permeability materials

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Petroleum Science 2019年第2期16卷 298-317页

作者： M.Kumar M.S.Barak M.kumari Department of Mathematics B R Ambedkar Govt. College Department of Mathematics Indira Gandhi University

Phenomena of reflection and refraction of plane harmonic waves at a plane interface between an elastic solid and doubleporosity dual-permeability material are investigated. The elastic solid behaves non-dissipatively, while double-porosity dual-permeability materials behave dissipatively to wave propagation due to the presence of viscosity in pore fluids. All the waves(i.e., incident and reflected) in an elastic medium are considered as homogeneous(i.e., having the same directions of propagation and attenuation), while all the refracted waves in double-porosity dual-permeability materials are inhomogeneous(i.e., having different directions of propagation and attenuation). The coefficients of reflection and refraction for a given incident wave are obtained as a non-singular system of linear equations. The energy shares of reflected and refracted waves are obtained in the form of an energy matrix. A numerical example is considered to calculate the partition of incident energy among various reflected and refracted waves. The effect of incident direction on the partition of the incident energy is analyzed with a change in wave frequency, wave-induced fluid-flow, pore-fluid viscosity and double-porosity *** has been confirmed from numerical interpretation that during the reflection/refraction process, conservation of incident energy is obtained at each angle of incidence.

关键词： Plane harmonic wave Double-porosity dual-permeability Reflection/refraction coefficients Energy share Elastic solid

Finger millet porridges subjected to different processing conditions showed low glycemic index and variable efficacy on plasma antioxidant capacity of healthy adults

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食物生产加工与营养(英文) 2020年第1期2卷 129-139页

作者： Disna kumari Anoma Chandrasekara Prisko Athukorale Fereidoon Shahidi Department of Applied Nutrition Wayamba University of Sri LankaMakanduraGonawila 60170Sri Lanka Ministry of Health Nutrition&Indigenous MedicineSuwasiripaya385Colombo 10Sri Lanka Department of Biochemistry Memorial University of NewfoundlandSt.John’sNL A1B 3X9Canada

Finger millet porridges(FMP),rich in nutrient and non-nutrient compounds have been used in the traditional food cultures in *** aims of the study were to determine the effect of different processing conditions of finger millet grains on glycemic response,phenolic content and the antioxidant activities of FMP and to determine the short term and long term efficacy of its consumption on plasma antioxidant levels of healthy *** types of FMP were prepared combining different processing *** content of porridges as well as antioxidant activities were *** glycemic index(GI)and glycemic load(GL)values of FMP were also *** long term efficacy of FMP consumption on plasma glucose(PG),total cholesterol(TC)levels and plasma antioxidant capacity(PAC)of 18 subjects were investigated using a 24 weeks randomized cross-over *** short term efficacy of porridge consumption on AC was *** was measured by trolox equivalent antioxidant capacity(TEAC)and ferric ion reducing antioxidant power(FRAP).All FMP exhibited low GI values(<55)except the raw roasted flour which showed high and medium GI values for both particle sizes *** of finger millet grains with 15 min steaming produced FMP with low glycemic response and possessed high *** to baseline,PAC measured using FRAP and TEAC assays increased after 8 weeks consumption of porridge though significant changes were not observed for PG and TC ***,PAC was increased by 23 and 14%after 2 h of porridge consumption as measured by TEAC and FRAP,*** consumption increased the plasma total antioxidant capacity of healthy *** research on examining the potential of FMP on improving the antioxidant capacity in patients with diabetes is warranted.

关键词： FRAP Long term and short term efficacy Randomized cross-over study TEAC TPC

Dual degree branched type-2 fuzzy controller optimized with a hybrid algorithm for frequency regulation in a triple-area power system integrated with renewable sources

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Protection and Control of Modern Power Systems 2023年第3期8卷 196-224页

作者： Nisha kumari Pulakraj Aryan G.Lloyds Raja Yogendra Arya Department of Electrical Engineering Indian Institute of Technology(Indian School of Mines)DhanbadIndia Department of Electrical Engineering National Institute of TechnologyPatnaIndia Department of Electrical Engineering J.C.Bose University of Science and TechnologyYMCAFaridabadHaryanaIndia

The uncertainties associated with multi-area power systems comprising both thermal and distributed renewable generation(DRG)sources such as solar and wind necessitate the use of an efficient load frequency control(LFC)***,a hybrid version of two metaheuristic algorithms(arithmetic optimization and African vulture’s optimization algorithm)is *** is called the‘arithmetic optimized African vulture’s optimization algorithm(AOAVOA)’.This algorithm is used to tune a novel type-2 fuzzy-based proportional–derivative branched with dual degree-of-freedom proportional–integral–derivative controller for the LFC of a three-area hybrid deregulated power ***,electric vehicle(EV),and DRG sources(including a solar panel and a wind turbine system)are con-nected in ***-2 involves thermal and gas-generating units(GUs),while thermal and geothermal units are linked in *** restrictions such as thermo-boiler dynamics,thermal-governor dead-band,and genera-tion rate constraints are also *** proposed LFC method is compared to other controllers and optimizers to demonstrate its superiority in rejecting step and random load *** functioning as energy storage ele-ments,EVs and DRG units can enhance dynamic responses during peak *** a result,the effect of the afore-mentioned units on dynamic reactions is also *** validate its effectiveness,the closed-loop system is subjected to robust stability analysis and is compared to various existing control schemes from the *** is determined that the suggested AOAVOA improves fitness by 40.20%over the arithmetic optimizer(AO),while fre-quency regulation is improved by 4.55%over an AO-tuned type-2 fuzzy-based branched controller.

关键词： Load frequency control Distributed generation Energy storage devices Type-2 fuzzy proportional-derivative branched with dual-degree-of-freedom proportional-integral-derivative controller Hybrid arithmetic optimized African vulture’s optimization algorithm

S-,N-and C-doped ZnO as semiconductor photocatalysts:A review

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Frontiers of Materials Science 2019年第1期13卷 1-22页

作者： Vijaya kumari Anuj MITTAL Jitender JINDAL Suprabha YADAV Naveen KUMAR Department of Chemistry Maharshi Dayanand University RohtakIndia Department of Chemistry R.P.S.Degree CollegeMohindergarhIndia

In the past few decades,many novel non-metal doped ZnO materials have developed hasty interest due to their adaptable properties such as low recombination rate and high activity under the solar light *** this article,we compiled recent research advances in non-metal(S,N,C)doped ZnO,emphasizing on the related mechanism of catalysis and the effect of non-metals on structural,morphological,optical and photocatalytic characteristics of *** review will enhance the knowledge about the advancement in ZnO and will help in synthesizing new ZnO-based materials with modified structural and photocatalytic properties.

关键词： degradation recombination mechanism photocatalyst pollutant

Biochemical Responses Associated with Resistance to Nilaparvata lugens (Stal) in Wild Rice Accessions

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Rice science 2020年第6期27卷 449-453页

作者： Rajwinder Kaur Sandhu Preetinder Singh Sarao Neelam kumari Department of Entomology Punjab Agricultural UniversityLudhiana 141004India Department of Plant Breeding and Genetics Punjab Agricultural UniversityLudhiana 141004India School of Agricultural Biotechnology Punjab Agricultural UniversityLudhiana 141004India

Brown planthopper(BPH),Nilaparvata lugens(Stal),is a destructive insect pest of *** damages the plants by sucking the plant sap from the phloem tissues and results in wilting of plants due to reduced chlorophyll and protein *** attacked plants do not bear any grains and cause'hopper bum*condition(Catindig et al,2009).Both nymphae and adults suck sap primarily at the base of the tillers,and therefore their presence goes *** is also responsible for transmitting various viral diseases like grassy stunt,ragged stunt and wilted stunt(Win et al,2011).The blanket use of insecticides to control this pest has resulted in natural enemy death,environmental pollution,insecticide resistance and population ***,there is dare need to develop alternative management strategy for this pest,and host plant resistance can be the effective,economical and chemical-free approach to control BPH.

关键词： resistance pollution Access

Lightweight authentication protocol for e-health clouds in IoT-based applications through 5G technology

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Digital Communications and Networks 2021年第2期7卷 235-244页

作者： Minahil Muhammad Faizan Ayub Khalid Mahmood Saru kumari Arun Kumar Sangaiah Department of Computer Science COMSATS University Islamabad Sahiwal Campus57000Pakistan Department of Mathematics Ch.Charan Singh UniversityMeerutUtter Paradesh250001India School of Computing Science and Engineering VIT UniversityVelloreTamil NaduIndia

Modem information technology has been utilized progressively to store and distribute a large amount of healthcare data to reduce costs and improve medical *** this context,the emergence of e-Health clouds offers novel opportunities,like easy and remote accessibility of medical ***,this achievement produces plenty of new risks and challenges like how to provide integrity,security,and confidentiality to the highly susceptible e-Health *** these challenges,authentication is a major issue that ensures that the susceptible medical data in clouds is not available to illegal *** smart card,password and biometrics are three factors of authentication which fulfill the requirement of giving high *** three-factor ECC-based authentication protocols on e-Health clouds have been presented so ***,most of the protocols have serious security flaws and produce high computation and communication ***,we introduce a novel protocol for the e-Health cloud,which thwarts some major attacks,such as user anonymity,offline password guessing,impersonation,and stolen smart card ***,we evaluate our protocol through formal security analysis using the Random Oracle Model(ROM).The analysis shows that our proposed protocol is more efficient than many existing protocols in terms of computation and communication ***,our proposed protocol is proved to be more efficient,robust and secure.

关键词： Authentication Security protocol IoT 5G e-health cloud

Protective Role of C-Phycocyanin Against Secondary Changes During Sodium Selenite Mediated Cataractogenesis

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Natural Products and Bioprospecting 2014年第2期4卷 81-89页

作者： Rasiah Pratheepa kumari Kumarasamy Anbarasu Department of Marine Biotechnology Bharathidasan UniversityTiruchirappalli 620024Tamil NaduIndia

Age related cataract is the leading cause of blindness associated with accumulation of oxidative stress in the eye *** present investigation reveals the rational of the beneficial effects of the natural compound C-phycocyanin(CPC)is beneficial when administered to rat pups to protect against the secondary effects of sodium selenite induced cataractogenesis.A single subcutaneous dose of sodium selenite(19 lmol/kg body weight)on the 10th day of postpartum is adequate to induce cataract in rat *** biochemical parameters,such as the level of electrolytes,mean activities of anti-oxidant enzymes *** dismutase,catalase and reduced glutathione were observed to be significantly altered during selenite induced cataractogenic *** examination revealed signs of degradation of normal cell architecture in the liver,kidney and eye ***,the deleterious effects of sodium selenite toxicity were restored with the simultaneous treatment with *** results suggest that an administration of 200 mg/kg body weight of C-PC has the ability to prevent/alter the secondary changes reflected in the serum biochemical and histological modifications in rats exposed to sodium *** results complement the beneficial role of C-PC of cyanobacterial origin as a efficacious anti-cataractogenic agent against sodium selenite toxicity.

关键词： Cyanobacteria C-phycocyanin Cataract Sodium selenite Cataractogenesis