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| 1 | Microwave synthesis and spectroscopic characterization of manganese oxalate nanocrystals显示文摘The microwave synthesis of MnC_2O_4·2H_2O nanopartides was performed through the thermal double decomposition of oxalic acid dihydrate(C_2H_2O_42H_2O) and Mn(OAc)_2-4H20 solutions using a CATA-2R microwave reactor.Structural characterization was performed using X-ray diffraction(XRD),particle size and shape were analyzed using transmission electron microscopy(TEM).The chemical in the structures was investigated using electron paramagnetic resonance(EPR) as well as optical absorption spectra and near-infrared(NIR) spectroscopies.The nanocrystals produced with this method were pure and had a distorted rhombic octahedral structure. | S.Lakshmi Reddy G.Udayabashkar Reddy R.Ramasubba Reddy G.Siva Reddy Ray L.Frostc Tamio Endo | 2013 | Particuology2013，11，3： | 2 |
| 2 | Simultaneous spectrophotometric estimation of paracetamol and lornoxicam in tablet dosage form显示文摘 | S.Lakshmi K.S.Lakshmi T.Tintu | | 0，，04： | 1 |
| 3 | 查看详情显示文摘 | S.Lakshmi Narayana S.Adi Narayana Reddy Y.Subbarao Hwang Inseong A.Varada Reddy | | 0，，04： | 1 |
| 4 | Adaptive Particle Swarm Optimization Data Hiding for High Security Secret Image Sharing显示文摘The main aim of this work is to improve the security of data hiding forsecret image sharing. The privacy and security of digital information have becomea primary concern nowadays due to the enormous usage of digital technology.The security and the privacy of users’ images are ensured through reversible datahiding techniques. The efficiency of the existing data hiding techniques did notprovide optimum performance with multiple end nodes. These issues are solvedby using Separable Data Hiding and Adaptive Particle Swarm Optimization(SDHAPSO) algorithm to attain optimal performance. Image encryption, dataembedding, data extraction/image recovery are the main phases of the proposedapproach. DFT is generally used to extract the transform coefficient matrix fromthe original image. DFT coefficients are in float format, which assists in transforming the image to integral format using the round function. After obtainingthe encrypted image by data-hider, additional data embedding is formulated intohigh-frequency coefficients. The proposed SDHAPSO is mainly utilized for performance improvement through optimal pixel location selection within the imagefor secret bits concealment. In addition, the secret data embedding capacityenhancement is focused on image visual quality maintenance. Hence, it isobserved from the simulation results that the proposed SDHAPSO techniqueoffers high-level security outcomes with respect to higher PSNR, security level,lesser MSE and higher correlation than existing techniques. Hence, enhancedsensitive information protection is attained, which improves the overall systemperformance. | S.Lakshmi Narayanan | 2022 | Computer Systems Science & Engineering2022，43，12： | 0 |
| 5 | Validation of LittleEARS questionnaire in Hindi language显示文摘Background:Subjective measures of auditory development are equally important as objective measures to obtain a realistic image of the hearing status in infants and toddlers.Objectives:The objectives of the current study were to translate and validate the LittleEARS questionnaire into the Hindi language,to calculate its psychometric properties and establish a regression curve of the scores obtained as a function of age,to calculate the inter-test and test retest reliability of the same.The secondary objectives were to compare the scores obtained by the normal hearing children and those with hearing impairment and to plot a regression curve of total scores obtained by the hearing-impaired children as a function of the duration of auditory training attended since their first fit of the device.Materials and methods:The procedures involved conventional translation,reverse translation,and content validation before administering the questionnaire.The translated version was administered to parents of 59 children with normal hearing and 41 children with hearing impairment.Results:The finalized version had good reliability and efficient internal consistency with a Cronbach alpha value of 0.96.The mean scores obtained by the normal hearing children showed a progressive pattern as a function of age.Conclusion:The LittleEARS questionnaire has been successfully translated and validated into the Hindi language with excellent validity and reliability and can be used for screening and early identification of hearing impairment and in evaluating the outcome of audiological treatment approaches. | Praveen Prakash S.Lakshmi Adithya Sreedhar Arena Varan Mathur Sreeraj Konadath | 2023 | Journal of Otology2023，18，2： | 0 |
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