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Rice science 2013年第6期20卷 415-426页

作者： P.mANImARAN G.RAVI KUmAR m.raghurami reddy S.JAIN T.BHASKAR RAO S.K.mANGRAUTHIA R.m.SUNDARAm S.RAVICHANDRAN S.m.BALACHANDRAN Biotechnology Laboratory Crop Improvement SectionDirectorate of Rice ResearchRajendranagarHyderabad 500030India

A rapid and reproducible method to develop transgenic plants with enhanced transformation efficiency using Agrobacterium has been developed for the elite indica rice variety BPT 5204. Different rice calli aged from 3 to 30 d were co-cultivated with pre-incubated Agrobacterium suspension culture （LBA4404： pSB1, pCAmBIA1301） and incubated in dark for 3 d. Based on the transient GUS gene expression analysis, 6-day-old young calli showed high transformation frequency followed by 21-day-old ones. Thus, both 6-and 21-day-old calli were used for assessing the stable transformation efficiency. It was observed that the 6-day-old young transformed calli showed about 2-fold higher regeneration frequency when compared with 21-day-old calli. The transformation efficiency was enhanced for young calli to 5.9% compared with 0.8% of the 21-day-old calli. molecular and genetic analysis of transgenic plants （To） revealed the presence of 1-2 copies of T-DNA integration in transformants and it follows mendalian ratio in T1 transgenic plants. From the present study, it was concluded that the development of transgenic rice plants in less duration with high regeneration and transformation efficiency was achieved in BPT 5204 by using 6-day-old young calli as explants.

关键词： Agrobacterium-mediated transformation meihod rice callus transformation transgenicplant indica rice

molybdenum disulfide and magnesium oxide nanoparticle performance on micropolar Cattaneo-Christov heat flux model

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Applied mathematics and mechanics(English Edition) 2021年第4期42卷 541-552页

作者： m.G.reddy S.A.SHEHZAD Department of mathematics Acharya Nagarjuna University CampusOngole 523001Andhra PradeshIndia Department of mathematics COMSATS University IslamabadSahiwal 57000Pakistan

This article intends to illustrate the Darcy flow and melting heat transmission in micropolar *** major advantage of micropolar fluid is the liquid particle rotation through an independent kinematic vector named the microrotation *** novel aspects of the Cattaneo-Christov(C-C)heat flux and Joule heating are incorporated in the energy transport *** different nanoparticles,namely,moS2 and mgO,are suspended into the *** governing partial differential equations(PDEs)of the prevailing problem are slackening into ordinary differential expressions(ODEs)via similarity *** resulting mathematical phenomenon is illustrated by the implication of fourth-fifth order Runge-Kutta-Fehlberg(RKF)*** fluid velocity and temperature distributions are deliberated by using graphical phenomena for multiple values of physical *** results are displayed for both molybdenum disulphide and magnesium oxide nanoparticles.A comparative benchmark in the limiting approach is reported for the validation of the present *** is revealed that the incrementing material constraint results in a higher fluid velocity for both molybdenum disulphide and magnesium oxide nanoparticle situations.

关键词： micropolar fluid Cattaneo-Christov(C-C)heat flux molybdenum disulphide nanoparticle melting effect numerical solution

Stability of stratified shear flows in channels with variable cross sections

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Applied mathematics and mechanics(English Edition) 2015年第11期36卷 1459-1480页

作者： V.R.reddy m.SUBBIAH Department of mathematics Pondicherry University

For the instability problem of density stratified shear flows in sea straits with variable cross sections, a new semielliptical instability region is found. Rurthermore, the instability of the bounded shear layer is studied in two cases：（i） the density which takes two different constant values in two layers and （ii） the density which takes three different constant values in three layers. In both cases, the dispersion relation is found to be a quartic equation in the complex phase velocity. It is found that there are two unstable modes in a range of the wave numbers in the first case, whereas there is only one unstable mode in the second case.

关键词： hydrodynamic stability shear flow variable density sea strait variablecross section

Rare earth metal doped CeO_2-based catalytic materials for diesel soot oxidation at lower temperatures

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Journal of Rare Earths 2015年第11期33卷 1162-1169页

作者： A.Rangaswamy Putla Sudarsanam Benjaram m.reddy Inorganic and Physical Chemistry Division CSIR-Indian Institute of Chemical Technology Centre for Advanced materials and Industrial Chemistry (CAmIC) School of Applied Sciences RMIT University

In this work, the influence of trivalent rare-earth dopants（Sm and La） on the structure-activity properties of CeO2 was thoroughly studied for diesel soot oxidation. For this, an optimized 40% of Sm and La was incorporated into the CeO2 using a facile coprecipitation method from ultra-high dilute aqueous solutions. A systematic physicochemical characterization was carried out using X-ray diffraction（XRD）, transmission electron microscopy（TEm）, Brumauer-Emmett-teller method（BET） surface area, X-ray photoelectron spectroscopy（XPS）, Raman, and H2-temperature programmed reduction（TPR） techniques. The soot oxidation efficiency of the catalysts was investigated using a thermogravimetric method. The XRD results suggested the formation of nanocrystalline single phase CeO2-Sm2O3 and CeO2-La2O3 solid solutions. The Sm- and La-doped CeO2 materials exhibited smaller crystallite size and higher BET surface area compared with the pure CeO2. Owing to the difference in the oxidation states of the dopants（Sm3＋ and La3＋） and the Ce4＋, a number of oxygen vacancies were generated in CeO2-Sm2O3 and CeO2-La2O3 samples. The H2-TPR studies evidenced the improved reducible nature of the CeO2-Sm2O3 and CeO2-La2O3 samples compared with the CeO2. It was found that the addition of Sm and La to the CeO2 outstandingly enhanced its catalytic efficiency for the oxidation of diesel soot. The observed 50% soot conversion temperatures for the CeO2-Sm2O3, CeO2-La2O3 and CeO2 were ~790, 843 and 864 K（loose contact）, respectively, and similar activity order was also found under the tight contact condition. The high soot oxidation efficacy of the CeO2-Sm2O3 sample was attributed to numerous catalytically favourable properties, like smaller crystallite size, larger surface area, abundant oxygen vacancies, and superior reducible nature.

关键词： rare earths cerium oxide solid solutions oxygen vacancies soot oxidation

Effect of Hardfaced Interlayer Thickness and Low Hydrogen Ferritic Capping on Ballistic Performance of Shielded metal Arc Welded Armour Steel Joints

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Journal of Iron and Steel Research International 2013年第12期20卷 82-91页

作者： m Balakrishnan V Balasubramanian G madhusudhan reddy Center for materials Joining and Research(CEmAJOR) Department of Manufacturing EngineeringAnnamalai University Solidification Technology Division Metal Joining GroupDefense Metallurgical Research Laboratory(DMRL)

Armour grade quenched and tempered steel closely confirming to AISI 4340 is well known for its superior ballistic performance and hence used in the fabrication of combat vehicles. The traditional fillers like austenitic stain- less steel showed poor ballistic performance of these welded joints as compared to the base metal. Attempts have been made to deposit hardfaced interlayer between austenitic stainless steel weld metals. Though this method, mar-- ginal improvements in ballistic performance can be yielded, and cracks were observed in between base metal and hardfaced layer. Thickness of the hardfaced interlayer plays a vital role for the effective ballistic performance. Thus, an attempt has been made to investigate the effect of hardfaced interlayer thickness on ballistic performance of ar- mour steel welds. The results of effect of buttering, low hydrogen ferritic （LHF） filler and three different hardfaced layer thicknesses （4, 5.5 and 7 ram） on ballistid performance of shielded metal arc welded armour steel joints were given.

关键词： armour steel low hydrogen ferritic electrode sandwich structure ballistic performance hardfacing metallography

Environment friendly protocol for the synthesis of nitriles from aldehydes

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Chinese Chemical Letters 2010年第9期21卷 1025-1028页

作者： m.B.madhusudana reddy m.A.Pasha Department of Studies in Chemistry Central College CampusBangalore University

A rapid and eco-friendly one-pot protocol for the synthesis of nitriles has been developed by treating various araldehydes bearing electron withdrawing as well as electron donating groups with hydroxylamine hydrochloride in the presence of non-toxic,non-corrosive and reusable zinc oxide（ZnO） as the catalyst under solvent-free microwave *** present approach offers the advantages of a clean reaction,simple methodology,employing readily available catalyst,short reaction duration（〈1 min）,high selectivity;and high yield（90-98%）.

关键词： Aldehydes Nitriles Solvent-free microwave irradiation Benign procedure

Ear Field Adaptive Noise Control for Snoring:An Real-time Experimental Approach

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IEEE/CAA Journal of Automatica Sinica 2019年第1期6卷 158-166页

作者： Lichuan Liu Karunakar reddy Pottim Sen m.Kuo IEEE the Electrical Engineering Department Northern Illinois University the Department of Electrical Engineering Chung Yuan Christian University

In this paper, an active noise control(ANC) system is developed to provide an effective and non-intrusive solution for reducing loud snoring to provide a quiet environment for a snorer's bed partner. An adaptive least mean square(LmS)algorithm optimized for different kinds of snore signals is introduced and theoretically analyzed. Also, a residual noise masking approach is proposed to further reduce the effect of the snore noise without interfering with the LmS algorithm. Computer simulations followed by real-time experiments are conducted to demonstrate the feasibility of the snore ANC systems based on a pillow setup. For the optimum effect based on the characteristics of human hearing, the performance of the proposed approach is evaluated by using the multi-channel feedforward ANC systems based on the filtered-X least mean square(FXLmS) *** with a traditional headboard setup for snoring noise control, the proposed snore ANC systems optimized for ear field operation yield much higher noise reduction around the ears of the snorer's bed partner.

关键词： Active noise control (ANC) audio integrated ANC ear field filtered-X least mean square (FXLmS) snore multi-channel

Electro-magneto-hydrodynamic flow of couple stress nanofluids in micro-peristaltic channel with slip and convective conditions

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Applied mathematics and mechanics(English Edition) 2021年第4期42卷 593-606页

作者： K.RAmESH m.G.reddy B.SOUAYEH Department of mathematics Symbiosis Institute of TechnologySymbiosis International(Deemed University)Pune 412115India Department of mathematics Acharya Nagarjuna UniversityOngole CampusOngole 523001India Department of Physics College of ScienceKing Faisal UniversityAl-Ahsa 31982Saudi Arabia Laboratory of Fluid mechanics Physics DepartmentFaculty of Sciences of TunisUniversity of Tunis El ManarTunis 2092Tunisia

This study explores the effects of electro-magneto-hydrodynamics,Hall currents,and convective and slip boundary conditions on the peristaltic propulsion of nanofluids(considered as couple stress nanofluids)through porous symmetric *** phenomena of energy and mass transfer are considered under thermal radiation and heat source/*** governing equations are modeled and non-dimensionalized under appropriate dimensionless *** resulting system is solved numerically with mATHEmATICA(with an in-built function,namely the Runge-Kutta scheme).Graphical results are presented for various fluid flow quantities,such as the velocity,the nanoparticle temperature,the nanoparticle concentration,the skin friction,the nanoparticle heat transfer coefficient,the nanoparticle concentration coefficient,and the trapping *** results indicate that the nanoparticle heat transfer coefficient is enhanced for the larger values of thermophoresis ***,an intriguing phenomenon is observed in trapping:the trapped bolus is expanded with an increase in the Hartmann ***,the bolus size decreases with the increasing values of both the Darcy number and the electroosmotic parameter.

关键词： peristalsis magnetohydrodynamics(mHD) nanofluid Hall current porous medium thermal radiation

Recent Advancements in the Development of Self Healing Concrete-A Systematic Review

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Journal of Wuhan University of Technology(materials Science) 2024年第6期39卷 1449-1460页

作者： A Ravi Theja m Srinivasula reddy Bharat Bhushan Jindal C Sashidhar Assistant Professor in SVR Engineering College NandyalAndhra PradeshIndia Associate Professor of Civil Engineering G Pulla Reddy Engineering CollegeKurnoolAPIndia Assistant Professor in School of Civil Engineering Shri Mata Vaishno Devi UniversityJammu and KashmirIndia Professor of Civil Engineering JNTU College of EngineeringJNTUAAnanthapuramuAndhra PradeshIndia

mechanical as well as durability properties are pivotal for any type of concrete which gets adversely affected due to cracks that may form due to loading beyond its *** has the intrinsic property to heal itself to some extent but not fully as the passive form of autogenous healing plays an inferior role for a complete repair of a cementitious *** self-healing capabilities can be enhanced by adding chemical admixtures,polymers,and bacteria strains induced calcium carbonate precipitation,*** this paper,the advancements in the development and performance of self-healing concrete using chemical admixtures,polymers,and bacteria strains are *** systematic review includes the available experimental tests and methodologies investigating self-healing efficiency over the last ***,this review focussed on self-healing materials,the ideology,and opinions of those in the construction field on the direction of self-healing concrete for future *** is yet not possible to predict the most appropriate technique,however,a generalized opinion about the effectiveness of the different approaches has been illustrated.

关键词： self-healing cracks bio-based healing chemical additives-based healing

Real-Time multi-Feature Approximation model-Based Efficient Brain Tumor Classification Using Deep Learning Convolution Neural Network model

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Computer Systems Science & Engineering 2023年第9期46卷 3883-3899页

作者： Amarendra reddy Panyala m.Baskar Department of Computer Science and Engineering School of ComputingSRM Institute of Science and TechnologyKattankulathurChengalpattuChennai603203TamilnaduIndia Department of Information Technology MLR Institute of TechnologyHyderabad500043TelanganaIndia Department of Computing Technologies School of ComputingSRM Institute of Science and TechnologyKattankulathurChengalpattuChennai603203TamilnaduIndia

The deep learning models are identified as having a significant impact on various *** same can be adapted to the problem of brain tumor ***,several deep learning models are presented earlier,but they need better classification *** efficient multi-Feature Approximation Based Convolution Neural Network(CNN)model(mFACNN)is proposed to handle this *** method reads the input 3D magnetic Resonance Imaging(mRI)images and applies Gabor filters at multiple *** noise-removed image has been equalized for its quality by using histogram ***,the features like white mass,grey mass,texture,and shape are extracted from the *** features are trained with deep learning Convolution Neural Network(CNN).The network has been designed with a single convolution layer towards dimensionality *** texture features obtained from the brain image have been transformed into a multi-dimensional feature matrix,which has been transformed into a single-dimensional feature vector at the convolution *** neurons of the intermediate layer are designed to measure White mass Texture Support(WmTS),Graymass Texture Support(GmTS),Whitemass Covariance Support(WmCS),Graymass Covariance Support(GmCS),and Class Texture Adhesive Support(CTAS).In the test phase,the neurons at the intermediate layer compute the support as mentioned above values towards various classes of *** on that,the method adds a multi-Variate Feature Similarity measure(mVFSm).Based on the importance ofmVFSm,the process finds the class of brain image given and produces an efficient result.

关键词： CNN deep learning brain tumor classification mFA-CNN mVFSm 3D mRI texture Gabor