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Propulsion and Power Research 2016年第1期5卷 70-80页

作者： Manoj Kumar nayak Gauranga Charan Dash Lambodar Prased Singh Department of Physics Radhakrishna Institute of Technology and EngineeringBijupatnaik University of TechnologyOdishaIndia Department of Mathematics I.T.E.R.Siksha‘O’Anusandhan UniversityOdishaIndia Department of Physics Utkal UniversityOdishaIndia

An attempt has been made to study the heat and mass transfcr effects in a boundary layer flow through porous medtium of an electrically conducting viscoelastic fluid subject to transverse magnetic field in the presence of heat sourcelsink and chemical *** has been considered the effects of radliation,viscous and Joule dissipations and intemal heat generation/*** form solutions for the boundary layer equations of viscoelastic,second-grxle and Walters'B’fluid models are *** method of solution involves similarity *** ransfommed equations of thermal and mass transport are solved by applying Kummer's *** solutions of temperature field for both prescribed surface temperature(PST)as well as prescribed surface heat flux(PHF)are *** is important to remark that the interaction of magnetic field is found to be counterproductive in enhancing velocity and concentration distibution whereas the presence of chemical reaction as well as porous matrix with moderate values of magnetic parameter reduces the temperature and concentration fields at all points of flow domain.

关键词： Stretching sheet Porous medium Viscoelastic Chemical reaction Kummer's function

Lineament analysis as a seismic precursor:The El Mayor Cucapah earthquake of April 4,2010(MW7.2),Baja California,Mexico

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Geodesy and Geodynamics 2023年第2期14卷 121-129页

作者： Rosendo Romero-Andrade Manuel E.Trejo-Soto Karan nayak Daniel Hernández-Andrade Naccieli Bojorquez-Pacheco Faculty of Earth and Space Sciences Autonomous University of Sinaloa80013Culiacan RosalesSinaloaMexico

An earthquake called the MW7.2“El Mayor Cucapah”earthquake on April 4,2010 has been analyzed for seismic *** changes in the lineament system concerning its pattern and time intervals were analyzed during the earthquake preparation period and occurrence using the automated lineament detection *** Landsat 5 TM images were processed using LESSA and ADALGEO software obtaining similar *** statistical analysis revealed the stress accumulation due to plate interaction during earthquake *** study shows that the number of extracted lineaments changes rapidly about 23 months before the earthquake,and the systems return to the initial stage after 23 *** lineaments coincide with the extension of the San Andreas Fault as NW direction is the dominant ***,it can be concluded that the featural changes within the Rose diagram corresponding to the different strokes direction along with oriented elongation lines as disclosed in the present study using satellite images could be identified as a mid-term and/or short-term precursors of the ***,even though the dynamism of the El Mayor Cucapah earthquake is found in the extracted lineaments,it is possible to isolate more significant earthquakes even if new ones appear near the ***,using two algorithms for lineament detection allows for the tectonics to corroborate the obtained lineaments and dynamism.

关键词： Lineament analysis Earthquake Landsat images Seismic precursor

Exclusive endoscopic transcanal approach to lateral skull base lesions:Institutional experience of 3 cases

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Journal of Otology 2021年第1期16卷 55-60页

作者： Sidharth Pradhan Preetam Chappity Anindya nayak Pradeep Pradhan Pradipta K.Parida All India Institute of Medical Sciences Bhubaneswar Department of Otorhinolaryngology and Head&Neck Surgery1 st floorAIIMSBhubaneswarSijuaBhubaneswarOdisha751019India

Introduction:Majority of petrous bone and lateral skull base pathologies are benign in *** complex anatomy usually warrants an extensive approach with associated *** summary:Two cases of petrous bone cholesteatoma(1 congenital cholesteatoma with facial palsy and 1 acquired cholesteatoma)and a case of glomus tympanicum were treated with exclusive endoscopic transcanal *** cases of petrous cholesteatoma were addressed with trans-promontorial and infra-cochlear *** mean operative time was approximately 140 *** CSF otorrhoea was noticed in the post-operative *** average period of hospital stay was 3.7 ***:In the subset of cases with limited benign disease an endoscopic trans-canal approach is a better alternative to an external *** decreases operative time,blood loss,chance of meningitis,morbidity and hospital *** lack of depth perception is a major hurdle which can be come over by experience in endoscopic middle ear *** approach can create direct access to cochlea/petrous apex/internal auditory canal(IAC)/Supra-geniculate ganglion region.

关键词： Transcanal endoscopic approach Petrous cholesteatoma Glomus tympanicum Lateral skull base

Extraction of aluminium as aluminium sulphate from thermal power plant fly ashes

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Transactions of Nonferrous Metals Society of China 2017年第9期27卷 2082-2089页

作者： Seoul SANGITA Niva nayak Chitta Ranjan PA Environment & Sustainability Department CSIR-Institute of Minerals & Materials Technology

Valuable metal extraction technology from thermal power plant fly ash is *** the present study,aluminium is extracted from fly ash as highly pure aluminium sulphate(>99.0%)by leaching with sulphuric acid,followed by pre-concentration and successive *** types of fly ashes from different sources,i.e.,Talcher Thermal Power Station(TTPS)and Vedanta Aluminium Company Limited(VAL)were chosen for comparative study on the extraction of aluminium as aluminium *** product is characterized by powder X-ray diffraction(XRD),Fourier transform infrared spectroscopy(FTIR)and thermogravimetric analysis(TGA).Purity of aluminium sulphate was also investigated by inductively coupled plasma?optical emission spectrometry(ICP?OES).The extraction efficiency of aluminium depends on the varied solid-to-liquid ratio(fly ash:18mol/L H2SO4,g/mL)and particle size of fly ***-chemical analysis indicates that the obtained product is Al2(SO4)3·18H2O,having low iron content(0.08%).

关键词： fly ash sulphuric acid aluminium sulphate leaching solid-to-liquid ratio particle size

Bile Cast Nephropathy in Patients with Acute Kidney Injury Due to Hepatorenal Syndrome:A Postmortem Kidney Biopsy Study

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Journal of Clinical and Translational Hepatology 2017年第2期5卷 92-100页

作者： Suman Lata nayak Manoj Kumar Chhagan Bihari Archana Rastogi Department of Nephrology Institute of Liver and Biliary Sciences New Delhi India Department of Hepatology and Liver Transplatation Institute of Liver and Biliary Sciences New Delhi India Department of Pathology Institute of Liver and Biliary Sciences New Delhi India

Background and Aims:The role of bile cast nephropathy (BCN) in pathogenesis of hepatorenal syndrome (HRS) in decompensated cirrhosis and acute on chronic liver failure (ACLF) is *** study aimed to determine the frequency of BCN detected on postmortem renal biopsy among patients with decompensated cirrhosis and ACLF who had been admitted with acute kidney injury due to HRS (HRAAKI) and expired during that ***:One-hundred-twenty-seven postmortem renal biopsies with adequate size (>1 cm in length) were included for *** were obtained from 84 patients with decompensated cirrhosis and 43 patients with ***:BCN was detected in 57 of the total 127 (44.8%) renal biopsy *** with BCN had significantly higher levels of serum total bilirubin,total leukocyte count and model for end-stage liver disease score,as compared to those without *** was detected in 32/43 (74.4%) of the patients with ACLF,as compared to 25/84 (29.7%) of the patients with decompensated cirrhosis (p < 0.001).On multivariate analysis,direct bilirubin (OR (95% CI):1.27 (1121-1.698);p < 0.001)and presence of ACLF (OR (95% CI):2.603 (1.054-7.111);p =0.041) were found to be significant predictors of BCN on postmortem renal ***:BCN was found in 72.1% of patients with ACLF and 27.4% patients with decompensated cirrhosis who had been hospitalized with an admitting diagnosis of HRS-AKI and who expired during that hospitalization and underwent postmortem renal *** serum bilirubin and presence of ACLF were found to be significant predictors of BCN on postmortem renal biopsy.

关键词： Bile cast nephropathy Acute kidney injury Hepatorenal syndrome

Development and characterization of ethylcellulose based microsphere for sustained release of nifedipine

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Journal of Pharmaceutical Analysis 2016年第5期6卷 341-344页

作者： Patitapabana Parida Subash Chandra Mishra Subhashree Sahoo Ajit Behera Bibhukalyan Prasad nayak Department of Biotechnology and Medical Engineering NIT Rourkela Odisha 769008 India Department of Metallurgical and Materials Engineering NIT Rourkela Odisha 769008 India Department of Pharmaceutics Kanakmanjari Institute of Pharmaceutical Sciences Rourkela Odisha 769015 India Department of Metallurgical and Materials Engineering IIT Kharagpur West Bengal 721302 India

This article introduced the work of ethylcellulose based polymeric microsphere loaded with nifedipine for reduction in frequency of administration with low solubility in aqueous medium and high rate of absorption in the stomach. The non-aqueous polymeric suspension was put dropwise into an aqueous medium containing polyvinyl alcohol as a surfactant for the synthesis of microsphere by solvent evaporation. The microspheres were characterized by different techniques, namely, XRD, SEM, and NMR. The formation of microspheres was confirmed by SEM. XRD analysis revealed the semi-crystallinity nature of microspheres. The NMR study indicated the presence of hetero-aromatic nucleus in the microsphere.

关键词： Nifedipine Microsphere Solvent evaporation Sustained release

Performance analysis of series/parallel and dual side LCC compensation topologies of inductive power transfer for EV battery charging system

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Frontiers in Energy 2020年第1期14卷 166-179页

作者： P.Srinivasa Rao nayak Dharavath KISHAN Department of Electrical and Electronics Engineering National Institute of TechnologyTiruchirappalli620015India

In an inductive battery charging system,for better power transfer capability and attaining required power level,compensation is *** paper analyzes series/parallel(S/P)and dual side inductorcapacitor-capacitor(LCC)compensation topologies for inductive power transfer of electric vehicle(EV)battery charging *** design and modeling steps of inductive power transfer for electric vehicle battery charging system are ***,the equivalent electrical circuits are used to describe the circuit compensation *** results convey that the efficiency of dual side LCC compensation is higher than that of S/P compensation at variable mutual inductance(misalignment).

关键词： series/parallel compensation electric vehicle(EV) dual side LCC compensation inductive power transfer

Design, synthesis and MAO inhibitory activity of 2-(arylmethylidene)-2,3-dihydro-1-benzofuran-3-one derivatives

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Chinese Chemical Letters 2017年第7期28卷 1528-1532页

作者： Vishnu nayak Badavath Chandrani Nath Narayana Murthy Ganta Gulberk Ucar Barij Nayan Sinha Venkatesan Jayaprakash Department of Pharmaceutical Sciences & Technology Birla Institute of Technology Department of Biochemistry Faculty of Pharmacy Hacettepe University

A series of 2-（arylmethylidene）-2,3-dihydro-1-benzofuran-3-one derivatives（aurones, 1–20） were synthesized and screened for their inhibitory activity against h MAO. Seventeen compounds（1–5, 7–17,19） were found to be selective towards h MAO-B, while two were non-selective（6 and 20） and one（18）selective towards h MAO-A. Compound 17（Ki = 0.10 0.01 mmol/L） was found to be equally potent and selective towards h MAO-B, when compared with the standard drug Selegiline（Ki = 0.12 0.01 mmol/L）.Nature and position of substitution in aryl ring at 2nd position of benzofuranone influences h MAO-B inhibitory potency, while their structural bulkiness influences selectivity between h MAO-A and h *** docking simulation was also carried out to understand the interaction of inhibitor with the enzyme at molecular level, and we found the docking results were in good agreement with the experimental values. Comparison of the activity profile of the aurones with their corresponding flavones reported earlier by our group revealed that there exists no difference in potency as well as selectivity.

关键词： 2-(Arylmethylidene)-2 3-dihydro-1-benzofuran-3-one derivatives hMAO inhibitors Molecular docking simulation Synthesis

3D radiative convective flow of ZnO-SAE50nano-lubricant in presence of varying magnetic field and heterogeneous reactions

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Propulsion and Power Research 2019年第4期8卷 339-350页

作者： M.K.nayak J.Prakash D.Tripathi V.S.Pandey Department of Physics IHSESiksha"O"Anusandhan Deemed to be UniversityBhubaneswar751003OdishaIndia Department of Mathematics Avvaiyar Government College for WomenKaraikal609602Puducherry-U.T.India Department of Mathematics National Institute of TechnologyUttarakhand246174India Department of Physics National Institute of Technology DelhiNew DelhiIndia

A numerical simulation is presented to investigate the effect of an exponentially varying magnetic field on three dimensional flow of Zinc Oxide-Society of Automotive Engineers 50 nanolubricant(ZnO-SAE50nano-lubricant)past a stretching *** the impact of homogenous and heterogeneous reactions on the flow of nanolubricant concerned has also taken into *** study has been strengthened by introducing the convection mechanism and the effect of thermal *** transformations are employed to transform the set of partial governing equations into the set of ordinary differential *** suitable boundary conditions are used to obtain the numerical *** numerical results are simulated using Matlab bvp4c solver and validated with the existing *** flow characteristics,thermal characteristics,nanoparticle concentration and some non-dimensional numbers are computed under the influence of the pertinent *** valuable outcome of the current study is that augmented magnetic field strength is the root cause of diminishing axial as well as transverse velocities and growing trend of fluid ***,the coeffi-cients of homogenous and heterogeneous reactions are boons for ascending concentration boundary layer.

关键词： MHD 3D flow ZnO-SAE50nanolubricant Exponential stretching sheet Convective heating mechanism Thermal radiation Heat generation/absorption

Industrial Unsustainability

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Journal of Geoscience and Environment Protection 2015年第4期3卷 16-23页

作者： Aparna nayak University of Idaho Boise ID USA

The development of unconventional gas exploration in the USA, in particular shale gas, caused a revolution in the American and the global gas markets. The regional-wide use of unconventional gas resources could stabilize the natural gas demand and the energy supply security of European and Asian countries. But traditionally, almost all gas contracts in Europe and Asia are linked to oil because of the demand for stable, long-term contracts. Furthermore, in many Asian countries, large state-owned enterprises dominate their national gas markets, leading to little competition and incentives to reduce gas prices. In Europe, the expansion of unconventional gas is facing grassroots opposition from environmental groups who are concerned about ground water safety, adequate waste water management, seismic events and greenhouse gas emissions. In this article, I will discuss the rapidly changing natural gas markets and the role and prospects of unconventional gas as well as its environmental impacts and unsustainability in industry level.

关键词： Hydro Fracking Natural Gas Industries Unsustainability Sustainable Industries