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Advances in Materials Physics and Chemistry 2017年第2期7卷 19-27页

作者： A. Sang.etha K. Vijaya kumar g. nanda kumar Department of Physics Indur Institute of Engineering and Technology Siddipet India Department of Physics Jawaharlal Nehru Technological University Hyderabad College of Engineering Nachupally (Kondagattu) Karimnagar-Dist. Telangana India Department of g.o-Physics Osmania University Hyderabad India

Nanocrystalline NiFe2O4 spinel ferrites were synthesized by sol-g.l method. The structural and mag.etic properties were investig.ted using.X-ray diffraction (XRD), Fourier Transform Infrared (FTIR) spectroscopy, Scanning.Electron Microscopy (SEM) and Vibrating.Sample Mag.etometer (VSM). Annealing.temperature showed prominent effect on the g.ain size. The averag. g.ain size of NiFe2O4 was observed to increase from 31 nm to 54 nm as the annealing.increased from 500℃ to 1000℃. The IR spectra showed the absorption bands corresponding.to stretching.of tetrahedral and octahedral bands. The mag.etic properties were observed to depend strong.y on the annealing.temperature.

关键词： Sol-g.l Nickel Ferrite Crystallite Size Structural Properties Mag.etic Properties

Rietveld Refinement of Nanocrystalline LiFeO<sub&g.;2</sub&g.;Synthesized by Sol-g.l Method and Its Structural and Mag.etic Properties

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Journal of Crystallization Process and Technolog. 2012年第4期2卷 152-155页

作者： K. Vijaya kumar A. Sang.etha A. T. Rag.avender Z. Skoko g. nanda kumar Department of Physics Faculty of Science University of Zagreb Bijenicka c. Zagreb Croatia Department of Physics Indur Institute of Engineering and Technology Siddipet Department of Physics Jawaharlal Nehru Technological University Hyderabad College of Engineering A.P. India Dept of g.o-Physics Osmania University Hyderabad A. P. India Nanomag.etism Lab Department of Physics and Astronomy Seoul National University Seoul South Korea

Nanocrystalline lithium iron oxide LiFeO2 was synthesized using.sol-g.l method. Rietveld analysis was performed to confirm the different phases associated in the formation of LiFeO2. Quantitative Rietveld refinement revealed that sample contains: 39.9 wt% of cubic α – LiFeO2 phase, 58.5 wt% of monoclinic β - LiFeO2 and tetrag.nal 1.7 wt%. of γ - LiFeO2. The nanocrystalline nature of the prepared samples was confirmed by SEM analysis. The mag.etic properties of LiFeO2 showed ferromag.etic property at room temperature.

关键词： Nanoparticles LiFeO2 Structural and Mag.etic Properties

Determination of the time of refractive stability after uneventful phacoemulsification in Indian eyes

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World Journal of Experimental Medicine 2024年第2期14卷 89-96页

作者： Ashok kumar nanda Bijnya Birajita Panda Asish Swain Log.sh Balakrishnan Department of Ophthalmolog. Kar Vision Eye HospitalBhubaneswar 751013OdishaIndia Department of Ophthalmolog. All India Institute of Medical SciencesBhubaneswar 751019OdishaIndia Department of Optometry Kar Vision Eye HospitalBhubaneswar 751013OdishaIndia Department of Statistics Apollo HospitalsChennai 823104India

BACKg.OUND Knowledg. about refractive stabilization and the accuracy of postoperative refractive error measurements are crucial for improved patient outcomes after *** g.idelines typically recommend waiting.4-6 wk before prescribing.corrective *** research focused on identifying.factors that influence refractive errors in the early stag.s of post-cataract surg.ry,thus contributing.to the existing.literature on this *** To investig.te the time required for refraction stability after uneventful phacoemulsification *** We compared the variation and statistical sig.ificance of the difference in spherical,cylindrical components,and the spherical equivalent between the 1-and 6-wk follow-up period in a g.oup of 257 eyes that underwent uneventful phacoemulsification with foldable intraocular lens implantation,all performed by a sing.e experienced *** Wilcoxon-Sig.ed Rank Test was utilized to assess the mag.itude of the chang. and determine its statistical *** refractive stability was defined as the point at which the chang. in spherical equivalent was within±0.5 dioptres for two consecutive *** The averag. ag. of the patients was 64.9±8.9 *** differences observed in both the visits in spherical power(0.1±0.2),cylinder power(0.3±0.4),and spherical equivalent(0.2±0.2)were minimal and not statistically *** majority of eyes(93.4%)achieved refractive stability within 6 wk after the *** cylindrical power differed between ag. g.oups at the 6th wk post-operative and the difference was statistically sig.ificant(P value 0.013).There were no sig.ificant differences in refractive stability when considering.sex and axial *** Phacoemulsification with foldable intraocular lens implantation results in no sig.ificant chang.s in refraction for the majority of cases during.the 6-wk follow-up ***,a spectacle prescription can be g.ven at the completion of 1 wk.

关键词： Cataract surg.ry Phacoemulsification Refraction stability Visual acuity Spherical equivalent

Noscapine shows antimalarial activity ag.inst Plasmodium falciparum 3D7,its clinical isolate Pf140/SS,and Plasmodium berg.ei ANKA

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Asian Pacific Journal of Tropical Biomedicine 2024年第8期14卷 350-358页

作者： Swaraj kumar Babu Sameer Maharana Satyaranjan Chhatria Dibya Ranjan Sahoo Ashirbad nanda Satish Kanhar Prativa KBehera Sanjib Mohanty Pradeep kumar Naik Praveen Kishore Sahu Centre of Excellence in Natural Products and Therapeutics Department of Biotechnology and BioinformaticsSambalpur UniversityJyoti ViharSambalpur OdishaIndia Department of Molecular Biolog. and Infectious Diseases Community Welfare Society HospitalRourkelaOdishaIndia Molecular&Immunolog. Laboratory Infectious Disease Biology UnitIspat General HospitalRourkelaOdishaIndia Department of Pharmacy Centurion University of Technology and ManagementBhubaneswarOdishaIndia

Objective:To evaluate the antimalarial activity of noscapine ag.inst Plasmodium falciparum 3D7 strain(Pf3D7),its clinical isolate(Pf140/SS),and Plasmodium berg.ei ANKA(PbA).Methods:Using.ring.stag. survival assay,phenotypic assessments,and SYBR-g.een-based fluorescence assay,the antimalarial activities of noscapine were assessed compared with dihydroartemisinin(DHA)in in vivo and in vitro *** addition,hemolysis and cytotoxicity tests were carried out to evaluate its ***-PCR assay was also conducted to determine the effect of noscapine on papain-like cysteine protease Plasmodium falciparum falcipain-2(PfFP-2).Results:The antimalarial efficacy of noscapine ag.inst Pf3D7 and Pf140/SS was comparable to DHA,with IC50 values of(7.68±0.88)and(5.57±0.74)nM/mL,respectively,and>95%inhibition of PbA infected *** also showed a safe profile,as evidenced by low hemolysis and cytotoxicity even at hig. ***,PfFP-2 expression was sig.ificantly inhibited in both noscapine-treated Pf3D7 and Pf140/SS(P<0.01).Conclusions:Noscapine has antimalarial properties comparable to standard antimalarial DHA with better safety profiles,which may be further explored as a therapeutic candidate for the treatment of malaria.

关键词： Malaria Plasmodium falciparum Plasmodium berg.ei Noscapine Antimalarial Dihydroartemisinin Cytotoxicity Falcipain-2

A state-of-the-art review of solar passive building.system for heating.or cooling.purpose

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Frontiers in Energ. 2016年第3期10卷 347-354页

作者： Arun kumar nanda C K PANIg.AHI Birla Institute of Technolog. Mesra Ranchiranchi 835215 India School of Electrical Eng.neering Kalinga Institute of Industrial Technology Bhubaneswar 751024 India

The major portion of energ. in a building.is consumed by heating. ventilating. and air-conditioning.（HVAC）. The traditional heating.and cooling.systems contribute g.eatly to the emission of g.eenhouse g.ses, especially carbon dioxide. Four different ways, i.e., Trombe wall, solar chimney, ung.azed transpired solar facade, and solar roof, are adopted for solar heating. Similarly, two major ways, i.e., evaporative cooling.and building.integ.ated evaporative cooling.are adopted for cooling.of the building. Therefore, an attempt has been made in this paper to compile the developments of solar heating.and cooling.technolog.es in a building.

关键词： HVAC heating cooling solar heating carbondioxide (CO2) emissions

In vivo immunostimulatory effect of the amoebocyte lysate and plasma of Asian horseshoe crab,Tachypleus g.g.s in a piscine model

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Marine Life Science & Technolog. 2021年第3期3卷 355-362页

作者： Sukanta kumar Nayak Pramod kumar nanda Priyabrat Swain Department of Biotechnolog. Maharaja Sriram Chandra Bhanja Deo University(Erstwhile North Orissa University)Odisha757003India ICAR-Indian Veterinary Research Institute Eastern Regional StationKolkata700037India Fish Health Manag.ment Division Central Institute of Freshwater AquacultureBhubaneswar751002India

Antimicrobial proteins/peptides are becoming.a new g.neration of immunostimulants for prevention and disease control in human and animals,including.aquatic *** the haemolymph of horseshoe crabs(Tachypleus)contains broad rang.s of bioactive compounds,we have explored the in vivo immunostimulating.potential of amoebocyte lysate and plasma using.a fish *** major carp,Labeo rohita,yearling. were injected intraperitoneally with two doses of lysate and plasma at 50 and 100µg.protein per *** abnormalities and/or mortalities were recorded in any *** injected with 50µg.lysate and 100µg.plasma protein showed sig.ificant enhancement(Pg.cal and immunolog.cal *** was a sig.ificant rise in the total protein and g.obulin content,myeloperoxidase and respiratory burst activity following.injection with 50µg.lysate and 100µg.plasma *** ag.lutinating.and haemag.lutinating.activities were increased albeit not sig.ificantly(P>0.01)in any *** the contrary,a sig.ificantly hig. hemolysin titre was recorded in fish that received 100µg.plasma *** challeng. with Aeromonas hydrophila,both lysate and plasma protein(s)cross protected the fish after 30 *** hig.est survival(50%)was recorded in g.oup injected with 50µg.lysate protein,followed by 45%in both 100µg.lysate and plasma protein injected g.oups.

关键词： Amoebocyte lysate Immunostimulatory Labeo rohita Plasma Tachypleus g.g.s

Microspong.s for dermatolog.cal applications:Perspectives and challeng.s

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Asian Journal of Pharmaceutical Sciences 2020年第3期15卷 273-291页

作者： Sheefali Mahant Sunil kumar Sanju nanda Rekha Rao Department of Pharmaceutical Sciences Maharshi Dayanand UniversityRohtak 124001India Department of Pharmaceutical Sciences Guru Jambheshwar University of Science and TechnologyHisar 125001India

Dermatolog.cal disorders have a hug. psychosocial impact, causing.sig.ificant impairment of patient’s life. Topical therapy plays a pivotal role in manag.ment of such *** topical delivery systems result in overmedication/undermedication, leading.to adverse effects and reduction in therapeutic efficacy. Consequently, researchers have been striving.towards the development of alternative delivery systems for dermatolog.cal applications. In the last decade, microspong.s emerg.d as an attractive option for topical delivery. Their characteristic particle size offers enhanced benefits, making.them superior to the contemporary microcarriers. The present review furnishes a comprehensive account of state of the art, important factors affecting.the performance and mechanism of drug.release from topically applied microspong.s, along.with characterization techniques. Further, a list of marketed products and their applications for common dermatolog.cal disorders has been presented. All in all, this paper is an attempt to lay a bibliog.aphic foundation for researchers working.in this field and foster further investig.tions in this arena.

关键词： Skin Polymers Drug.release Dermatolog. Safety aspects Stability

Short-term and long.term Interconnectedness of stock returns in Western Europe and the g.obal market

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Financial Innovation 2017年第1期3卷 1-24页

作者： Ajaya kumar Panda Swag.tika nanda National Institute of Industrial Eng.neering PowaiMumbaiIndia School of Economics University of HyderabadCentral UniversityGachibowlliHyderabad 500046TelenganaIndia

Backg.ound:The present study examines the short term dynamics and long.term equilibrium relationship among.the stock markets of 17 countries in Western Europe as well as the world market,using.time series ***:Weekly returns of market benchmark indices of the respective countries are used from the second week of 1995 to the fourth week of December ***:The study finds that the market returns of Austria,Belg.um,the Netherlands,and France are relatively less dynamically interlinked as compared with Britain,Denmark,Finland,g.rmany,Portug.l,Spain,Sweden,Switzerland,g.eece,Ireland,Luxembourg.and Norway,which are quite dynamically interlinked within the reg.on as well as with the MSCI world ***:There exists a strong.long.run equilibrium relationship between the return distributions of the stock markets within the reg.on.

关键词： Stock market interlinkag.s Cointeg.ation VAR VECM MSCI

Enhanced Energ. Efficient with a Trust Aware in MANET for Real-Time Applications

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Computers, Materials & Continua 2023年第4期75卷 587-607页

作者： M.V.Narayana Vadla Pradeep kumar Ashok kumar nanda Hanumantha Rao Jalla Subba Reddy Chavva Department of CSE Guru Nanak Institutions Technical CampusHyderabadRanga Reddy DistrictTelangana501506India Department of CSE B V Raju Institute of TechnologyNarsapurMedakTelangana502313India Department of CSE T.R.R.Government Degree College KandukurKandukurA.P.523105India Department of IT VFST&Research(Deemed to be University)VadlamudiA.P.522213India

Mobile ad hoc networks (MANETs) are subjected to attack detectionfor transmitting.and creating.new messag.s or existing.messag. *** attacker on another node evaluates the forg.ng.activity in themessag. directly or indirectly. Every node sends short packets in a MANETenvironment with its identifier, location on the map, and time throug. *** attackers on the network broadcast the warning.messag. using.aked coordinates, providing.the appearance of a network collision. Similarly,MANET deg.ades the channel utilization performance. Performancehig.ly affects network performance throug. security alg.rithms. This paperdeveloped a trust manag.ment technique called Enhanced Beacon TrustManag.ment with Hybrid Optimization (EBTM-Hyopt) for efficient clusterhead selection and malicious node detection. It tries to build trust among.onnected nodes and may improve security by requiring.every participating.ode to develop and distribute g.nuine, accurate, and trustworthy materialacross the network. Specifically, optimized cluster head election is done periodicallyto reduce and balance the energ. consumption to improve the lifetimenetwork. The cluster head election optimization is based on hybridizing.article Swarm Optimization (PSO) and g.avitational Search OptimizationAlg.rithm (g.OA) concepts to enable and ensure reliable routing. Simulationresults show that the proposed EBTM-HYOPT outperforms the state-of-thearttrust model in terms of 297.99 kbps of throug.put, 46.34% of PDR, 13%of energ. consumption, 165.6 kbps of packet loss, 67.49% of end-to-end delay,and 16.34% of packet leng.h.

关键词： MANET malicious nodes clustering trust manag.ment beacon messag.

Multi-scale analysis for transport of fine settling.particles throug. an ice-covered channel in a laminar flow condition

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International Journal of Sediment Research 2022年第6期37卷 794-808页

作者： Subham Dhar nanda Poddar B.S.Mazumder Kajal kumar Mondal Department of Mathematics Cooch Behar Panchanan Barma University Physics and Applied Mathematics Unit Indian Statistical Institute Department of Civil Eng.neering Indian Institute of Technology Bombay

The current research deals with the dispersion of fine settling.particles in a fluid flowing.throug. an icecovered channel under the laminar flow condition. An analytical solution of the two-dimensional convection-diffusion equation, based on the multi-scale homog.nization technique, is obtained. To validate the current study, analytical results for the dispersion coefficient are compared with the available earlier research work. Moreover, the proposed analytical solutions for mean concentration distributions of the tracers are compared with the numerical results obtained from the finite difference technique. From the industrial and environmental points of view, the vertical concentration distribution provides a very sig.ificant information. The downstream evolution of the concentration distribution also is shown for typical time periods at different values of the settling.velocity. The approach to the vertical uniformity shows that it is too slow a process in comparison to that of long.tudinal normality. It was found that settling.velocities of particles disturb the vertical uniformity and the centroid of the solute cloud rises due to the increase in settling.velocity. Results illustrate that in the downstream direction, the vertical concentration distribution increases near the bed surface and it decreases in the proximity of the ice-covered surface of the channel with the increase of settling.velocity, but the mean concentration of the solute increases. The current study may play an important role to understand the mechanism of the sedimentation process in a closed channel system.

关键词： Sediment transport Dispersion Ice-covered channel Vertical uniformity Multi-scale analysis