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Chinese Journal of Traumatology 2022年第2期25卷 122-124页

作者： klein Dantis Swagata Brahmachari Aghosh raju Suprabha Shankari Department of Cardiothoracic and Vascular Surgery All India Institute of Medical SciencesRaipurIndia Department of General Surgery All India Institute of Medical SciencesBhopalIndia

Surgical stabilization of the flail chest is challenging and has no established *** wall integrity and stability are the main factors that ensure the protection of intrathoracic organs and an adequate respiratory ***,we report a novel chest wall reconstruction technique in a 45-year-old man with a traumatic left flail chest and open pneumothorax diagnosed both clinically and *** approximation and chest wall reconstruction was done using intercostal figure-of-eight suture and polypropylene mesh with vascularized musculofascial *** patient improved gradually and was discharged after three weeks of total hospital *** returned to regular working after a month with no evidence of respiratory distress or paradoxical chest ***-up visit at one year revealed no lung hernia or paradoxical chest *** is a novel,feasible and cost-effective modification of chest wall reconstruction that can be adopted for thoracic wall repair in case of open flail chest,which needs emergency surgical interventions even in resource constraint settings.

关键词： Flail chest Open pneumothorax Polypropylene mesh Figure-of-eight suture Chest wall reconstruction

Analytical analysis of inclined three-layered composite channel with cobalt ferrite nanoparticles and Hall current in Darcy medium

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Propulsion and Power Research 2023年第4期12卷 523-538页

作者： P.V.Ananth Subray B.N.Hanumagowda C.S.k.raju S.V.k.Varma Prakash Jagdish Se-Jin Yook Nehad Ali Shah Department of Mathematics School of Applied SciencesREVA UniversityBengaluruKarnatakaIndia School of Mechanical Engineering Hanyang University222 Wangsimni-roSeongdong-guSeoul 04763Republic of Korea Department of Mechanical Engineering Science Faculty of Engineering&The Built EnvironmentUniversity of JohannesburgSouth Africa Department of Mechanical Engineering Sejong UniversitySeoul 05006Republic of Korea

The present study explores the influence of electromagnetic effects on the flow of a nanofluid in a saturated permeable medium,confined between a clear viscous fluid in an inclined *** nanofluid consists of cobalt ferrite nanoparticles dispersed in ethylene *** governing equations are derived considering Darcy's law for the permeable medium and Tiwari's model for fluids containing nano-sized ***,radiation and dissipation effects are incorporated into the energy *** equations are transformed into dimensionless form and solved analytically using the perturbation *** results are analyzed through graphs and tables for different material *** findings reveal that higher electric and magnetic strengths have a significant impact on the fluid velocity at the interface of the two fluids,resulting in reduced shear both at the clear fluid surface and the interface between *** highlights the crucial role played by electric and magnetic strengths in modifying flow ***,combining electric and magnetic strengths with nanofluids can be utilized to achieve desired qualities in multi-fluid flow and enhance heat transfer characteristics.

关键词： Three-layered flow Inclined composite channel Electromagnetic field Nanofluid Porous region

The myth of “minima” and “maxima”,the species of Physalis in the Indian Subcontinent

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植物分类学报 2007年第2期45卷 239-245页

作者： Vatsavaya S raju C S REDDY k G RAJARAO Department of Botany Kakatiya UniversityWarangal 506009 India Forestry & Ecology Division National Remote Sensing AgencyHyderabad 500008 India Department of Botany Andhra UniversityWaltair 530003 India

The status of the names, Physalis minima L. and P. maxima Mill. (Solanaceae), and their alleged presence on the Indian subcontinent are discussed. The issues of nativity and identity of Linnaean Physalis minima are long-debated while the use of the name P. maxima Mill. and its report from India are recent. The available evidence indicates that the name "P. minima L." is misapplied to two different elements, viz., P. angulata L. and P. lagascae Roem. & Schult. The name Physalis minima L. may be rejected as nomen confusum, for which the paper provides the primary information. As on today, it is submerged under the synonymy of P. angulata L. The correct name for the widely known P. minima is P. lagascae. The name "P. maxima Mill." applied to the escape and naturalized weed in the Indian subcontinent and elsewhere is to be substituted by P. pruinosa L., a name misapplied to P. grisea (Waterf.) M. Martínez.

关键词：酸浆属植物酸浆值植物分类植物命名

Effect of wall temperature modulation on the heat transfer characteristics of droplet-train flow inside a rectangular microchannel

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Chinese Journal of Chemical Engineering 2020年第3期28卷 685-697页

作者： Vivekanand S.V.B.,raju V.R.k. Department of Mechanical Engineering National Institute of TechnologyWarangalTelangana 506004India

The numerical studies of water–oil two-phase slug flow inside a two-dimensional vertical microchannel subjected to modulated wall temperature boundary conditions have been discussed in the present *** researchers have contributed their efforts in exploring the characteristics of Taylor flows inside microchannel under constant wall heat flux or isothermal wall ***,there is no study available in the literature which discusses the impact of modulated thermal wall boundary conditions on the heat transfer behavior of slug flows inside ***,to bridge this gap,an effort has been made to understand the heat transfer characteristics of the flow under sinusoidal wall temperature ***,a single phase flow and heat transfer study was performed in microchannels,and the results of the fully developed velocity profile and heat transfer rate were validated with benchmark analytical *** an optimal selection of the combination of sinusoidal thermal wall boundary conditions has been made for the two-phase slug flow ***,the effects of amplitude(0 bεb 0.03)and frequency(0 bωb 750πrad·s-1)of the sinusoidal wall temperature profile on the heat transfer have been studied using the optimal combination of the wall boundary *** results of the numerical study using modulated temperature conditions on channel walls showed a significant improvement in the heat transfer over liquid-only flow by approximately 50%as well as over two-phase flow without wall temperature *** non-dimensional temperature contours obtained for different cases of temperature modulation clearly explain the root cause of such improvement in the heat ***,the results based on the hydrodynamics of the flow have also been reported in terms of variation of droplet shapes and film *** influence of Capillary number on the film thickness as well as heat transfer rates has also been *** addition,the measured fil

关键词： Heat transfer Microchannel Modulation Surface tension Taylor flow

Investigating the impact of structural and temporal behaviors in Ethereum phishing users detection

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Blockchain(Research and Applications) 2023年第4期4卷 24-38页

作者： Medhasree Ghosh Dyuti Ghosh raju Halder Joydeep Chandra Indian Institute of Technology PatnaBihtaBihar801106India University of Calcutta KolkataWest Bengal700073India

The recent surge of Ethereum in prominence has made it an attractive target for various kinds of crypto *** scams,for example,are an increasingly prevalent cybercrime in which malicious users attempt to steal funds from a user’s crypto *** research investigates the effects of network architectural features as well as the temporal aspects of user activities on the performance of detecting phishing users on the Ethereum transaction *** employ traditional machine learning algorithms to evaluate our model on real-world Ethereum transaction *** experimental results demonstrate that our proposed features identify phishing accounts efficiently and outperform the baseline models by 4%in Recall and 5%in F1-score.

关键词： Blockchain Cryptocurrency Ethereum Phishing scam Machine learning

On building machine learning pipelines for Android malware detection:a procedural survey of practices,challenges and opportunities

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Cybersecurity 2022年第4期5卷 19-55页

作者： Masoud Mehrabi koushki Ibrahim AbuAlhaol Anandharaju Durai raju Yang Zhou Ronnie Salvador Giagone Huang Shengqiang Huawei Technologies Canada Co. LtdVancouverCanada Huawei Technologies CanadaCo LtdOttawaCanada Simon FraserUniversity BurnabyVancouverCanada uawei Technologies Canada Co. LtdTorontoCanada.

As the smartphone market leader,Android has been a prominent target for malware *** number of malicious applications(apps)identified for it has increased continually over the past decade,creating an immense challenge for all parties *** market holders and researchers,in particular,the large number of samples has made manual malware detection unfeasible,leading to an influx of research that investigate Machine Learning(ML)approaches to automate this ***,while some of the proposed approaches achieve high performance,rapidly evolving Android malware has made them unable to maintain their accuracy over *** has created a need in the community to conduct further research,and build more flexible ML *** so,however,is currently hindered by a lack of systematic overview of the existing literature,to learn from and improve upon the existing *** survey papers often focus only on parts of the ML process(e.g,data collection or model deployment),while omitting other important stages,such as model evaluation and explanation.n this paper,we address this problem with a review of 42 highly-cited papers,spanning a decade of research(from 2011 to 2021).We introduce a novel procedural taxonomy of the published literature,covering how they have used ML algorithms,what features they have engineered,which dimensionality reduction techniques they have employed,what datasets they have employed for training,and what their evaluation and explanation strategies *** from this taxonomy,we also identify gaps in knowledge and provide ideas for improvement and future work.

关键词： Android Machine learning Malware classification Smartphone security Survey Taxonomy

A screen-printed, amperometric biosensor for the determination of organophosphorus pesticides in water samples

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Journal of Environmental Sciences 2012年第5期24卷 956-962页

作者： raju Sekar Department of Biological Sciences Xi'an Jiaotong-Liverpool University

An amperometric biosensor based on screen-printed electrodes （SPEs） was developed for the determination of organophosphorus pesticides in water samples. The extent of acetylcholinesterase （AChE） deactivation was determined and quantified for pesticide concentrations in water samples. An enzyme immobilization adsorption procedure and polyacrylamide gel matrix polymerization were used for fabrication of the biosensor, with minimal losses in enzyme activity. The optimal conditions for enzyme catalytic reaction on the SPEs surfaces were acetylthiocholine chloride （ATChCl） concentration of 5 mmol/L, pH 7 and reaction time of 4 min. The detection limits for three organophosphorus pesticides （dichlorvos, monocrotophs and parathion） were in the range of 4 to 7 μg/L when an AChE amount of 0.1 U was used for immobilization.

关键词： organophosphorus pesticides acetylcholinesterase enzyme immobilization screen-printed electrodes biosensor

Effects of variable fluid properties on the thin film flow of Ostwald-de Waele fluid over a stretching surface

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Journal of Hydrodynamics 2013年第1期25卷 10-19页

作者： VAJRAVELU k. PRASAD k. V. raju B. T. Department of Mathematics Department of Mechanical Material and Aerospace Engineering University of Central Florida Department of Mathematics Central College Campus Bangalore University

We investigate, in this paper, the effects of thermo-physical properties on the flow and heat transfer in a thin film of a power-law liquid over a horizontal stretching surface in the presence of a viscous dissipation. The fluid properties, namely the fluid viscosity and the fluid thermal conductivity, are assumed to vary with temperature. Using a similarity transformation, the governing partial differential equations with a time dependent boundary are converted into coupled non-linear Ordinary Differential Equations （ODEs） with variable coefficients. Numerical solutions of the coupled ODEs are obtained by a finite difference scheme known as the keller-box method. Results for the velocity and temperature distributions are presented graphically for different values of the pertinent parameters. The effects of unsteady parameter on the skin friction, the wall temperature gradient and the film thickness are presented and analyzed for zero and non-zero values of the temperature-dependent thermo-physical properties. The results obtained reveal many interesting features that warrant further study on the non-Newtonian thin film fluid flow phenomena, especially the shear-thinning phenomena.

关键词： Thin film flow variable fluid properties viscous dissipation finite difference method

kinetic simulation of an electronegative plasma with a cut-off distribution and modified Bohm criterion

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Plasma Science and Technology 2020年第4期22卷 33-39页

作者： Suresh BASNET raju kHANAL Central Department of Physics Tribhuvan UniversityKirtipurKathmandu 44613Nepal

A kinetic simulation model has been employed to study the properties of an electronegative magnetized plasma sheath assuming the cut-off distribution of electrons and negative *** fundamental kinetic Bohm condition for the electronegative magnetized plasma has paramount importance for the formation of a stationary plasma sheath near the material *** presence of an oblique magnetic field in an electronegative plasma affects the ion distribution at the plasma injection side and at the *** temperature profile of negative charged particles has a non-uniform distribution,which determines the energy flow towards the wall.

关键词： Bohm condition kinetic simulation plasma–wall interaction electronegative plasma

How does the stand structure of treeline-forming species shape the treeline ecotone in different regions of the Nepal Himalayas?

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Journal of Mountain Science 2020年第10期17卷 2354-2368页

作者： Parveen k.CHHETRI raju BISTA krishna B.SHRESTHA Department of Earth Science and Geography California State UniversityDominguez HillsCarsonCalifornia90747USA Department of Biological Sciences University of BergenPO Box 7803N-5020BergenNorway

Stand structure dynamics are considered as major happenings in any forest as a response to environmental ***,this important topic is underrepresented in the treeline studies in the Nepal *** aimed to investigate site-as well as species-specific changes in morphometric features(basal diameter,crown cover,density,and height)along the elevational gradient across treeline ecotones in response to recent environmental *** stand structure characteristics of Abies spectabilis,Pinus wallichiana,and Betula utilis across the treeline ecotone of three study sites in Eastern(Barun),Central(Manang),and Western(Dhorpatan)Nepal were analyzed to elucidate structural ***,eight transects(20 m×(60–250 m))across the treeline ecotone were *** of all life forms,trees(>2 m),saplings(0.5–2 m),and seedlings(kes,in further studies,the incorporation of the tree’s morphometric adaptation traits,phenotypic plasticity,and interactions between species genotype and the environment.

关键词： Climate change Morphometry Nepal Himalayas Stand structure Treeline Tree-rings