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Composition and Optical Properties of ZnSxSe1-x Films Grown by Close-Spaced Evaporation

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Composition and Optical Properties of ZnSxSe1-x Films Grown ...

CompactChain:an efficient stateless chain for UtXO-model blockchain

第十五届国际光伏科学与工程大会

作者： Y.P.Venkata Subbaiah k.t.ramakrishna reddy R.W.Miles thin Film Laboratory Department of Physics Sri Venkateswara University Tirupati-517 502 India School of Engineering Northumbria University Newcastle NE1 8ST UK

Polycrystalline thin films of ZnSSe with x = 0, 0.25, 0.5, 0.75 and 1.0 have been synthesized using close-spaced evaporation. the films were deposited onto corning glass substrates kept at different temperatures in the range, 200-400℃. the as-grown films were characterized using EDAX and Spectrophotometer to determine the composition and optical behavior. the composition analysis revealed that the films deposited at t = 275-325℃were nearly stoichiometric. the films had an optical transmittance > 75% for the photons of energies less than the energy band gap. the optical energy gap of the films increased with the increase of sulphur content in the layers and it varied in the range, 2.61-3.60 eV. the variation of energy band gap with composition, ’x’showed bowing nature with an evaluated bowing parameter of 0.57.

关键词： ZnSxSelx Films Close-spaced Evaporation Optical Properties

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Frontiers of Computer Science 2024年第2期18卷 167-179页

作者： B Swaroopa reddy t Uday kiran reddy Department of Electrical Engineering Indian Institute of Technology HyderabadHyderabadTelangana 502285India

In this work,we propose a stateless blockchain called CompactChain,which compacts the entire state of the UtXO(Unspent transaction Output)based blockchain systems into two RSA *** first accumulator is called transaction Output(tXO)commitment which represents the tXO *** second one is called Spent transaction Output(StXO)commitment which represents the StXO *** this work,we discuss three algorithms:(i)to update the tXO and StXO commitments by the *** miner also provides the proofs for the correctness of the updated commitments;(ii)to prove the transaction’s validity by providing a membership witness in tXO commitment and non-membership witness against StXO commitment for a coin being spent by a user;(iii)to update the witness for the coin that is not yet spent;the experimental results evaluate the performance of the CompactChain in terms of time taken by a miner to update the commitments and time taken by a validator to verify the commitments and validate the *** compare the performance of CompactChain with the existing state-of-the-art works on stateless *** shows a reduction in commitments update complexity and transaction witness size which inturn reduces the mempool size and propagation latency without compromising the system throughput(transactions per second(tPS)).

关键词： stateless blockchain RSA Accumulator StXO commitment tXO commitment UtXO Non-interactive Proof of Exponentiation(NI-PoE) transactions per second(tPS)

trusted Certified Auditor Using Cryptography for Secure Data Outsourcing and Privacy Preservation in Fog-Enabled VANEts

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Computers, Materials & Continua 2024年第5期79卷 3089-3110页

作者： Nagaraju Pacharla k.Srinivasa reddy School of Computer Science and Engineering VIT-AP UniversityAmaravatiAndhra Pradesh522237India

With the recent technological developments,massive vehicular ad hoc networks(VANEts)have been established,enabling numerous vehicles and their respective Road Side Unit(RSU)components to communicate with *** best way to enhance traffic flow for vehicles and traffic management departments is to share thedata they *** needs to be more protection for the VANEt *** effective and safe methodof outsourcing is suggested,which reduces computation costs by achieving data security using a homomorphicmapping based on the conjugate operation of *** research proposes a VANEt-based data outsourcingsystem to fix the *** keep data outsourcing secure,the suggested model takes cryptography models *** will keep the generated keys for the purpose of vehicle *** controlling and overseeingthe outsourced data while preserving privacy,the suggested approach considers the trusted Certified Auditor(tCA).Using the secret key,tCA can identify the genuine identity of VANEts when harmful messages *** proposed model develops a tCA-based unique static vehicle labeling system using cryptography(tCA-USVLC)for secure data outsourcing and privacy preservation in *** proposed model calculatesthe trust of vehicles in 16 ms for an average of 180 vehicles and achieves 98.6%accuracy for data encryption toprovide *** proposedmodel achieved 98.5%accuracy in data outsourcing and 98.6%accuracy in privacypreservation in fog-enabled *** curve cryptography models can be applied in the future for betterencryption and decryption rates with lightweight cryptography operations.

关键词： Vehicular ad-hoc networks data outsourcing privacy preservation cryptography keys trusted certified auditors data security

Quantification of Structurally Alert Mutagenic Impurities in Meropenem trihydrate Drug Substance by Liquid Chromatography with High Resolution Mass Spectrometer (LC-HRMS)

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American Journal of Analytical Chemistry 2024年第3期15卷 119-133页

作者： Anwar Sulaiman k. ramakrishna reddy Vundavilli Jagadeesh kumar Hemant kumar Sharma REVA University Bangalore India Quality Division Aurobindo Pharma Limited Hyderabad India APL Research Centre-II Analytical Research Department Aurobindo Pharma Limited Hyderabad India

Potential mutagenic impurities in Active Pharmaceutical Ingredient, Meropenem trihydrate were assessed and a novel analytical method for their quantification was developed and validated. this Liquid Chromatographic method using High Resolution Mass Spectrometer (LC-HRMS) technique is proved to be suitable for simultaneous quantification of all ten identified impurities with required specificity, sensitivity, resolution, precision, accuracy, and other method characteristics as per ICH Guidelines. the acceptable limit of less than 2.9 μg/g was considered for evaluations, based on drug substance dosage and duration of treatment. the method stands most sensitive with a Limit of Detection of 0.35 μg/g, considering the challenge full acceptance criteria as per current regulatory standards.

关键词： Mutagenic Impurities LC-HRMS Meropenem trihydrate Method Validation

Excellent photoluminescence and electrochemical properties of Sm^(3+) doped Ca_(2)MgSi_(2)O_(7) nanophosphor:Display and electrochemical sensor applications

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Journal of Rare Earths 2024年第6期42卷 1046-1055,I0002页

作者： R.B.Basavaraj k.Sureshkumar D.P.Aarti M.B.Madhusudana reddy G.Nagaraju t.ramakrishnappa G.R.Navyashree k.R.Venkatesha Babu k.S.Hemalatha Department of Physics BMS Institute of Technology and ManagementBangalore560064India Department of Chemistry BMS Institute of Technology and ManagementBangalore560064India Department of Chemistry School of Applied SciencesREVA UniversityBangalore560064India Energy Materials ResearchLaboratory Department of ChemistrySiddaganga Institute of TechnologyTumakuru57203KarnatakaIndia School of Physical Sciences REVA UniversityBangalore560057Indi Department of Physics Govt.Science CollegeBengaluru560001India Department of Physics Maharani Science College for WomenMaharani Cluster UniversityBengaluru560001India

A series of orange-red light emitting Ca_(2)MgSi_(2)O_(7):Sm^(3+)nanopowders were fabricated via low-cost ecofriendly green combustion technique using Aloe vera gel as *** phase purity of the samples were confirmed by the powder X-ray diffraction(PXRD)*** single-phase tetragonal structure is observed from the PXRD results with no additional impurity *** band gap energy of the fabricated powders was estimated by diffuse reflectance spectra(DRS)and is found to be in the range of 4.01-5.98 eV.A high resolution scanning electron microscope(SEM)was used to study the morphological behaviour of the ***-like structures are observed from the SEM *** particle size was evaluated by transmission electron microscopy(tEM)and is found to be~50 *** interplanar distance is found to be 0.53 *** properties were systematically studied in *** phosphors are successfully excited at 403 nm NUV light,producing reddish-orange characteristic *** emission peaks are centered at 558(^(4)G_(5/2)→^(6)H_(5/2)),607(^(4)G_(5/2)→^(6)H_(7/2))and 645 nm(^(4)G_(5/2)→^(6)H_(9/2)),*** the observed peaks the red emanation(^(4)G_(5/2)→^(6)H_(7/2))is stronger than the orange emission(^(4)G_(5/2)→^(6)H_(5/2))in the current *** photoluminescent concentration quenching is noticed above 5 mol%Sm^(3+)ion doping *** dipole-dipole interaction resulting in cross relaxation is found to be the principal cause of concentration quenching *** color features such as Commission Internationale de I’Eclairage(CIE)and correlated color temperature(CCt)were studied in *** optimized chromaticity coordinates were estimated to be(0.6363,0.3632),which fall in the reddish-orange *** average CCt value obtained is 3362 *** average color purity is found to be~82%.Sm^(3+)incorporated Ca_(2)MgSi_(2)O_(7) samples are possible contender for single white light generation commercial candidates owing to

关键词： Green combustion Photoluminescence Orange-red emission Color purity Sensors Rare earths

Enhanced entropy generation and heat transfer characteristics of magnetic nano-encapsulated phase change materials in latent heat thermal energy storage systems

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Applied Mathematics and Mechanics(English Edition) 2024年第6期45卷 1051-1070页

作者： P.S.reddy P.SREEDEVI Department of Mathematics Rajeev Gandhi Memorial College of Engineering and TechnologyNandyal 518501India

the objective of the current study is to investigate the importance of entropy generation and thermal radiation on the patterns of velocity,isentropic lines,and temperature contours within a thermal energy storage device filled with magnetic nanoencapsulated phase change materials(NEPCMs).the versatile finite element method(FEM)is implemented to numerically solve the governing *** effects of various parameters,including the viscosity parameter,ranging from 1 to 3,the thermal conductivity parameter,ranging from 1 to 3,the Rayleigh parameter,ranging from 102 to 3×10^(2),the radiation number,ranging from 0.1 to 0.5,the fusion temperature,ranging from 1.0 to 1.2,the volume fraction of NEPCMs,ranging from 2%to 6%,the Stefan number,ranging from 1 to 5,the magnetic number,ranging from 0.1 to 0.5,and the irreversibility parameter,ranging from 0.1 to 0.5,are examined in detail on the temperature contours,isentropic lines,heat capacity ratio,and velocity ***,the heat transfer rates at both the cold and hot walls are analyzed,and the findings are presented *** results indicate that the time taken by the NEPCMs to transition from solid to liquid is prolonged inside the chamber region as the fusion temperatureθf ***,the contours of the heat capacity ratio Cr decrease with the increase in the Stefan number Ste.

关键词： volume fraction of nano-encapsulated phase change material(NEPCM) radiation Stefan number heat capacity ratio entropy generation

Aldo-keto reductases:Role in cancer development and theranostics

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Oncology Research 2024年第8期32卷 1287-1308页

作者： SIDDAVARAM NAGINI PRAtHAP reddy kALLAMADI kRANtHI kIRAN kISHORE tANAGALA GEEreddy BHANUPRAkASH reddy World Neem Organization Mumbai400101India Department of Biochemistry ICMR-National Institute of NutritionHyderabad500007India Department of Pathology and Cell Biology Columbia University Irving Medical CenterNew York10032USA

Aldo-keto reductases(AkRs)are a superfamily of enzymes that play crucial roles in various cellular processes,including the metabolism of xenobiotics,steroids,and carbohydrates.A growing body of evidence has unveiled the involvement of AkRs in the development and progression of various *** are aberrantly expressed in a wide range of malignant *** expression of AkRs enables the acquisition of hallmark traits of cancer by activating oncogenic signaling pathways and contributing to *** have emerged as promising oncotherapeutic targets given their pivotal role in cancer development and *** of aldose reductase(AR),either alone or in combination with chemotherapeutic drugs,has evolved as a pragmatic therapeutic option for *** classes of synthetic aldo-keto reductase(AkR)inhibitors have been developed as potential anticancer agents,some of which have shown promise in clinical *** AkR inhibitors from natural sources also exhibit anticancer *** molecule inhibitors targeting speciﬁc AkR isoforms have shown promise in preclinical *** inhibitors disrupt the activation of oncogenic signaling by modulating transcription factors and kinases and sensitizing cancer cells to *** this review,we discuss the physiological functions of human AkRs,the aberrant expression of AkRs in malignancies,the involvement of AkRs in the acquisition of cancer hallmarks,and the role of AkRs in oncogenic signaling,and drug ***,the potential of aldose reductase inhibitors(ARIs)as anticancer drugs is summarized.

关键词： Aldo-keto reductases(AkRs) Aldo-keto reductase(AkR)inhibitors Cancer Drug-resistance Xenobiotics

Enhanced saturation magnetization in La^(3+) doped NiCo ferrites prepared by sol-gel auto-combustion method

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Journal of Rare Earths 2024年第8期42卷 1546-1554,I0005页

作者： Maddileti Jelli Vidyasagar thopudurthy krishna reddy C.V. Department of Physics Rayalaseema UniversityKurnoolA.P518007.Iindia Department of Physics Government PolytechnicRayachotiA.P516269India

Lanthanum doped nickel-cobalt nano ferrites with chemical formula Ni_(0.5)Co_(0.5)LaxFe_(2-x)O_(4)(x=0.05,0,10,0.15 and 0,20) were prepared using a simple sol-gel auto combustion *** basic structural properties were determined by X-ray diffraction method and the formation of single phased spinel ferrite was *** crystalline size decreased from 25 to 11 nm and lattice parameter a increases with increase of La *** surface morphology of these ferrites was observed by field-emission scanning electron microscopy(FESEM) and agglomerated irregular grains are observed with increase of the rare earth element La ***-dispersive X-ray spectroscopy(EDX) result confirms the presence of the required *** Fourier transform infrared spectroscopy(FtIR) spectrum indicates the formation of the spinel ferrite structure with M-O *** direct band measurements from ultraviolet-visible spectroscopy(UV-Vis) spectroscopy indicate that the direct band gap decreases from 1.39 to 1.19 eV for x=0.05 to x=0.15,then increases to 1.28 eV for x=*** room temperature magnetic properties of these ferrites were studied by a vibrating sample magnetometer(VSM).the enhanced saturation magnetization of 49.73 emu/g is observed for x=0.10 and then saturation magnetizations are gradually decreased for x=0.15 and x=*** the remanent magnetization and coercivity also follow the same trend.

关键词： Ferrites Sol-gel auto combustion La doping Magnetic properties Rare earths

Vitamin D, selenium in type 2 diabetes and Hashimoto's thyroiditis: Is it effective?

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World Journal of Diabetes 2024年第5期15卷 1048-1050页

作者： kotha Sugunakar reddy Vishakha Jain Sakthivadivel Varatharajan Janardhana reddy Pallavali Department of General Medicine All India Institute of Medical SciencesTelanganaHyderabad 508126India

the study by Feng et al,explores treatment approaches for these coexisting *** emphasizes the potential advantages of selenium and vitamin D supplementation but also raises methodological and patient selection *** indicate a complex interplay between interventions and disease markers,prompting the need for further *** limitations,the study offers valuable insights into managing the intricate relationship between type 2 diabetes mellitus and Hashimoto's *** authors'contributions shed light on potential treatment avenues,although careful consideration of study design and patient characteristics is warranted for future investigations in this domain.

关键词： Vitamin D Selenium type 2 diabetes Mellitus Hashimoto’s thyroiditis