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Fluid Dynamics & Materials Processing 2024年第2期20卷 257-274页

作者： Parakapali Roja Shaik Mohammed Ibrahim thummala sankar reddy Giulio Lorenzini Department of Mathematics Annamacharya Institute of Technology and SciencesKadapa516126India Department of Engineering Mathematics College of EngineeringKoneru Lakshmaiah Education FoundationVaddeswaram522302India Department of Mathematics Annamacharya Institute of Technology and SciencesKadapa516003India Department of Engineering and Architecture University of ParmaParma43124Italy

This study examines the behavior of a micropolar nanoﬂuidﬂowing over a sheet in the presence of a transverse magneticﬁeld and thermal *** addition,chemical(ﬁrst-order homogeneous)reactions are taken into account.A similarity transformation is used to reduce the system of governing coupled non-linear partial differ-ential equations(PDEs),which account for the transport of mass,momentum,angular momentum,energy and species,to a set of non-linear ordinary differential equations(ODEs).The Runge-Kutta method along with shoot-ing method is used to solve *** impact of several parameters is *** is shown that the micro-rota-tional velocity of theﬂuid rises with the micropolar ***,the radiation parameter can have a remarkable inﬂuence on theﬂow and temperature proﬁles and on the angular momentum distribution.

关键词： Chemical(ﬁrst order homogeneous)reaction magnetohydrodynamics micropolar nanoﬂuid stretching/shrinking sheet heat source

Essential oils and its antibacterial,antifungal and anti-oxidant activity applications:A review

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Food Bioscience 2022年第3期47卷 145-160页

作者： Tianyu Hou Siva sankar Sana Huizhen Li Yun Xing Anima Nanda Vasudeva reddy Netala Zhijun Zhang School of Chemical Engineering and Technology North University of ChinaTaiyuan030051China Jinzhong Institute of Industrial Technology and Innovation North University of ChinaJinzhong030600China Graduate School of Humanities Nagoya UniversityNagoya464-8601Japan Department of Biomedical Engineering Sathyabama Institute of Science and TechnologyChennaiTamilnaduIndia

Essential oils (EOs) seem to be more versatile and consist of a variety of volatile and organic biological active substances that are also employed as the better substitutes in the bacteria,fungal and various food *** researchers have done detailed research about the antibacterial property of essential oils and their respective *** several pioneering works in the past have explained the mode of action of some compounds,an extensive understanding of most of the substances and their molecular mechanisms is still *** particular,the bioactivity characteristics of EOs were evaluated by the main components found in *** components were commonly utilized in the applications of bactericidal,fungicidal,medicinal and antioxidant *** oils bioactivity can be contrasted with the behavior of pharmaceutical formulations which are produced ***,essential oils are showing promise organic extracts that require further analysis in the nutrition or pharmaceutical companies for potential applications as supplements,additives or *** of their diverse activities like antifungal and antibacterial characteristics,essential oils may be utilized as alternate additives to improve the grain and seed shelf *** review aims to provide a summary of existing information on the antibacterial and antifungal properties of EOs,their mechanism,and ingredients in identifying the areas of study that can promote the implementation in various bacterial and fungal properties.

关键词： Essential oils Terepnoids Antibacterial activity Antifungal activity Antioxidant activity

Giant Cell Tumour of Tendon Sheath in Thumb—A Case Report

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Open Journal of Orthopedics 2014年第4期4卷 113-116页

作者： sankar Rao. P Siddaram Patil Sandeep reddy Mamata Medical College Department of Orthopaedic Khammam India

Giant cell tumor of the tendon sheath is the second most common tumor of the hand often referred to as xanthoma. Histologically these tumors are composed of multinucleated giant cells, polyhedral histiocytes, fibrosis and hemosiderin deposits. Marginal excision of giant cell tumor of the tendon sheath is the treatment of choice. We present a case of xanthoma of flexor pollicis longus tendon presented as a single enlarging mass in volar aspect of left thumb. After clinical diagnosis, work-up is done with ultrasound, FNAC and excision biopsy.

关键词： Thumb Tendon Sheath Giant Cell Tumor Flexor Tendon

指示稳定性的反相超高效液相色谱评价原料药和制剂配方中奈必洛尔杂质的方法建立与验证(英文)

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色谱 2015年第10期33卷 1051-1058页

作者： Veera Raghava Raju thummala Mohana Krishna LANKA Analytical Research and Development Integrated Product DevelopmentDr.Reddy's Laboratories Ltd.Bachupally School of Chemistry Andhra University

A sensitive,stability-indicating gradient reverse phase ultra performance liquid chromatographic method has been developed for the quantitative estimation of nebivolol impurities in active pharmaceutical ingredient(API)and pharmaceutical *** chromatographic separation was achieved on an Acquity BEH C18 column(100 mm×2.1 mm,1.7μm)with mobile phase of a gradient *** flow rate of the mobile phase was 0.18 mL/min with column temperature of 30℃and detection wavelength of 281 *** relative response factor values of(R*)-2-(benzylamino)-1-((S*)-6-fluorochroman-2-yl)ethanol((R*S*)NBV-1),(R)-1-((R)-6-fluorochroman-2-yl)-2-((S)-2-((S)-6-fluoro-chroman-2-yl)-2-hydroxyethylamino)ethanol((RRSS)NBV-3),1-(chroman-2-yl)-2-(2-(6-fluorochroman-2-yl)-2-hydroxy ethyl amino)ethanol(monodesfluoro impurity),(S)-1-((R)-6-fluorochroman-2-yl)-2-((R)-2((S)-6-fluoro-chroman-2-yl)-2-hydroxyethylamino)ethanol hydrochloride((RSRS)NBV-3)and(R*)-1-((S*)-6-fluorochroman-2-yl)-2-((S*)-2-((S*)-6-fluoro-chroman-2-yl)-2-hydroxyethylamino)ethanol((R*S*S*S*)NBV-2)were 0.65,0.91,0.68,0.92 and 0.91 *** formulation sample was subjected to the stress conditions of acid,base,oxidative,hydrolytic,thermal,humidity and photolytic *** was found to degrade significantly under peroxide stress *** degradation products were well resolved from nebivolol and its *** peak purity test results confirmed that the nebivolol peak was homogenous and pure in all stress samples and the mass balance was found to be more than 98%,thus proving the stability-indicating power of the *** developed method was validated according to International Conference on Hormonization(ICH)guidelines with respect to specificity,linearity,limits of detection and quantification,accuracy,precision and robustness.

关键词：高效液相色谱高分辨质谱稻曲病菌毒素水稻

Annealing Effects on Electrical Properties and Interfacial Reactions of Ni/Cu Schottky Rectifiers on n-Type InP

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Journal of Modern Physics 2012年第7期3卷 538-545页

作者： Yerpedu Munikrishna reddy M. K. Nagaraj S. sankar Naik V. Rajagopal reddy Department of Physics Rayalaseema University Kurnool India Department of Physics Sri Venkateswara University Tirupati India Department of Physics SSBN Degree and PG College Anantapur India

We report on the effect of annealing temperature on electrical, interfacial reactions and surface morphological properties of Ni/Cu Schottky contacts on n-type InP. The extracted barrier height of as-deposited Ni/Cu Schottky contact is 0.59 eV (I-V) respectively. The high-quality Schottky contact with barrier height and ideality factor of 0.65 eV (I-V) and 1.15 respectively, can be obtained after annealing at 300℃ for 1 min in a nitrogen atmosphere. However, annealing at 400℃, results the decrease in the barrier height to 0.54 eV (I-V). From the above observations, it is observed that Ni/Cu Schottky contact exhibited excellent electrical properties after annealing at 300℃. Hence, the optimum annealing temperature for the Ni/Cu Schottky contact is 300℃. Furthermore, Cheung’s functions is used to extract the diode parameters including ideality factor, barrier height and series resistance. According to the XRD analysis, the formation of the indium phases at the Ni/Cu/n-InP interface could be the reason for the increase in the barrier height at annealing temperature 300℃. Further, the degradation of the barrier heights after annealing at 400℃ may be due to the formation of phosphide phases at the Ni/Cu/n-InP interface. Scanning electron microscopy (SEM) results show that the overall surface morphology of the Ni/Cu Schottky contact is reasonably smooth.

关键词： Schottky Contacts n-Type InP I-V Characteristics Structural Properties X-Ray Diffraction SEM

Annealing Effects on Electrical Properties and Interfacial Reactions of Ni/Cu Schottky Rectifiers on n-Type InP

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