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Friction surfacing of AISI 316 over mild steel: A characteriation study

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Defence Technology（防务技术） 2018年第4期14卷 306-312页

作者： R.George Sahaya Nixon B.S.mohanty R.Sathish Department of Mechanical Sathyabama University Department of Mechanical Engineering St.Joseph's College of Engineering Department of Mechanical Engineering SRM Easwari

An attempt has been made with overlaying of stain-less steel on mild steel by the technique of friction surfacing. This investigation elaborates the excellence acquired by different combination of the process parameters used in friction surfacing specifically traverse speed of the cross slide, speed of rotation of the spindle and the uniaxial compressive load. Excellent overlaying has been obtained amongst the chosen materials. To which, the coating can be done with various set of process parameters. It has been observed that the bond strength of the coating was found to be at a maximum of 502 MPa by ram tensile *** upon this results the surface methodology was characterized with scanning electron *** authenticating the results, the coated specimen was subjected to salt spray test. The bonding microstructure was characterized using optical microscopy and X-ray diffraction. Corrosion resistance of surfaced coatings was found to be more inferior to that of mechtrode material and greater with the substrate.

关键词： Friction surfacing Rotational speed Traverse speed Axial load Salt spray test Microstructure XRD analysis Ram tensile test

Optical delivery of multiple opsin-encoding genes leads to targeted expression and white-light activation

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Light(Science & Applications) 2015年第1期4卷 129-136页

作者： Kamal Dhakal Subrata Batabyal Weldon Wright Young-tae Kim Samarendra mohanty Biophysics and Physiology Lab The University of Texas at ArlingtonArlingtonTXUSA NanoScope Technologies LLCArlingtonTXUSA Department of Bioengineering The University of Texas at ArlingtonArlingtonTXUSA

In photodegenerative diseases such as retinitis pigmentosa(RP)and age-related macular degeneration(AMD),progressive loss of vision occurs as a result of degeneration of the periphery of the retina and the macula,*** optogenetic stimulation-based approaches to vision restoration offer the advantages of cellular specificity,high resolution,and minimal invasiveness over electrode arrays;however,the clinical translation of optogenetic activation suffers from the lack of a method for the delivery of opsins into spatially targeted regions of a retina that has ***-targeted opsin delivery through viral or non-viral methods to non-photodegenerated retinal areas will perturb these already functioning retinal ***,viral methods are subject to limitations on the delivery of large plasmids,such as fusion constructs of multiple spectrally separated opsins(e.g.,channelrhodopsin-2(ChR2),chimeric opsin variants(C1V1),ReaChR),which can provide higher photo-excitability than can a single narrow-band opsin under ambient light ***,we report the ultrafast near-infrared laser-based spatially targeted transfection of single and multiple opsins and present a comparison with the opsin expression distribution achieved using another non-viral,but non-targeted,transfection method,*** evaluation of cells transfected with multiple opsins using the laser method revealed a significantly higher white-light-induced photocurrent than in cells expressing a single opsin(ChR2).The laser-assisted targeted delivery of multiple opsin-encoding genes to the peripheral retina/macula is ideal for sensitizing retinal areas that have degenerated,thus paving the way toward the restoration of lost vision in RP/AMD patients.

关键词： gene delivery optogenetics optoporation vision restoration

Differences in Tree Species Diversity and Soil Nutrient Status in a Tropical Sacred Forest Ecosystem on Niyamgiri Hill Range,Eastern Ghats,India

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Journal of Mountain Science 2012年第4期9卷 492-500页

作者： Sudam Charan SAHU Nabin Kumar DHAL Brij LAL Rama Chandra mohanty Environment and Sustainability Department CSIR-IMMTBhubaneswar-751013India Biodiversity Division CSIR-IHBTPalampurIndia Department of Botany Utkal UniversityBhubaneswar-751004India

We have quantitatively analyzed the tree species diversity with respect to soil nutrient status in three sites of a sacred forest ecosystem of Niyamgiri hill range, Eastern Ghats, India. Extensive field surveys and sampling were conducted in 3 sites of the hill range： Site 1 Pterocarpus dominated forest （PTF）（19°40＇02.2＇＇ N and 83°21＇23.1＇＇ E）, Site 2 Mangifera dominated forest （MAF）（19°40＇02.8＇＇ N and 83°21＇40.8＇＇ E） and Site 3 Mixed forest （MIF）（19°36＇47.1＂ N and 83°21＇02.7＇＇ E）. A total of 28 families, 42 genera, 46 tree species, and 286 individual trees were recorded on an area of0.6 ha. Tree density varied between 470 and 49o individuals ha and average basal area between 3.16 and l0.04 m2 ha-1. Shannon Index （H＇） ranged from 2.34 to 4.53, Simpson＇s Index ranged from 0.07 to o.09, and equitability Index ranged from 0.7 to 1.34. The number of individuals was highest in the girth at breast height （GBH） class of 50-7o cm. The soil nutrient status of the three forest types was related to tree species diversity. The soil pH value of the three sites reflected the slightly acidic nature of the area. Species diversity was positively correlated with organic carbon and phosphorus and negatively with nitrogen, EC and pH. The results of the current study may be helpful to further develop a conservation planfor tree species in tropical sacred forest ecosystems.

关键词： Tree species diversity Sacred forestecosystem Soil nutrient status Eastern Ghats

Role of hormone receptors and HER2 as prospective molecular markers for breast cancer:An update

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Genes & Diseases 2022年第3期9卷 648-658页

作者： Swati Sucharita mohanty Chita Ranjan Sahoo Rabindra Nath Padhy Cytogenetics Laboratory P.G.Department of ZoologyUtkal UniversityBhubaneswarOdisha 751004India Central Research Laboratory Institute of Medical Sciences&SUM HospitalSiksha'O’Anusandhan Deemed to be UniversityBhubaneswarOdisha 751003India

This review provides an updated account on the current methods,principles and mechanism of action of therapies for the detection of molecular markers of therapeutic importance in the prognosis of breast cancer progression and recurrence,which includes estrogen receptor(ER),progesterone receptor(PR)and human epidermal growth factor receptor2(HER2).Indeed,hormone-receptors namely,ER,PR,proto-oncogene HER2 are the basic molecular markers that are recognized and established prognostic factors and predictors of response,for therapeutic *** markers can be detected by using immunohistochemistry(IHC)and fluorescence in situ hybridization(FISH),which are established,faster and cost effective detection *** molecular markers along with clinicopathological prognostic parameters give the best prediction of the prognosis of cancer recurrence and ***,hormone receptors and HER2 as molecular markers are of prime therapeutic importance and have the capability to take part in future drug development techniques.

关键词： Breast cancer Molecular diagnostic Molecular markers Predictive markers Prognostic

CROSS-LINKING OF AROMATIC POLY(THIOETHER)S

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Chinese Journal of Polymer Science 2007年第5期25卷 509-517页

作者： Matthew M. Yonkey Dillip K. mohanty Christopher Crouse Zhong-biao Zhang Department of Chemistry Central Mich-igan University Mt. Pleasant M1-48858 USA Department of Chemistry Rice-University Houston TX-77251 USA Department of Chemistry Virginia Tech Blacksburg VA-24060 USA

A novel cross-linking process using two high molecular weight aromatic poly（thioether）s, which were synthesized by the reactions of 4,4＇-thiobisbenzenethiol with 4,4＇-difluorobenzophenone and 4,4＇-difluorodiphenylsulfone, respectively, and commercially available lower molecular weight poly（p-phenylene sulfide） was investigated. These reactions were carried out in bulk by the addition of silver tetrafluroborate and α,α＇-dibromo-p-xylene at 190℃ over a period of 45 min. Furthermore, the same procedure could be modified to cross-link compression-molded films of these three polymers. The thermal and solubility behaviors of these polymers before and after cross-linking reactions, are presented.

关键词： Aromatic poly(thioether)s Chemical cross-linking Solubility Thermal stability.

Machine Learning-based Inverse Model for Few-Mode Fiber Designs

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Computer Systems Science & Engineering 2023年第4期45卷 311-328页

作者： Bhagyalaxmi Behera Gyana Ranjan Patra Shailendra Kumar Varshney Mihir Narayan mohanty ITER Siksha‘O’Anusandhan(Deemed to be University)Bhubaneswar751030India Department of Electronics and Electrical Communication Engineering IITKharagpur721302India

The medium for next-generation communication is considered as fiber for fast,secure communication and switching *** division and space division multiplexing provide an excellent switching capability with high data transmission *** this work,the authors have approached an inverse modeling technique using regression-based machine learning to design a weakly coupled few-mode fiber for facilitating mode division *** technique is adapted to predict the accurate profile parameters for the proposed few-mode fiber to obtain the maximum number of *** is for a three-ring-core few-mode fiber for guiding five,ten,fifteen,and twenty *** types of regression models namely ordinary least-square linear multi-output regression,k-nearest neighbors of multi-output regression,and ID3 algorithm-based decision trees for multi-output regression are used for predicting the multiple profile *** is observed that the ID3-based decision tree for multioutput regression is the robust,highly-accurate machine learning model for fast modeling of *** proposed fiber claims to be an efficient candidate for the next-generation 5G and 6G backhaul networks using mode division multiplexing.

关键词： Few-mode fibers inverse modeling machine learning regression ring-core

Myanmar-Andaman-Sumatra Subduction Margin Revisited:Insights of Arc-Specific Deformations

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Journal of Earth Science 2017年第4期28卷 683-694页

作者： Prosanta Kumar Khan Sk Shamim Manoranjan mohanty Prabhat Kumar Jayashree Banerjee Department of Applied Geophysics Indian Institute of Technology(ISM)Dhanbad 826 004India

We address the role of the concave and convex arcs （as observed from the subducting plate） on the deformation occurring along the Myanmar-Andaman-Sumatra margin. We categorize the pre- and post-seismic deformations of the lithosphere using earthquake database occurring either prior to 26th December 2004 Mw 9.3 off-Sumatra mega-event or after the incidence. Analysis under pre-seismic domain shows that area near Sumatra records highest seismicity, which largely drops in the area past the North Andaman, and further increases towards north. Shallowest depth and mini- mum dip of the subducting lithosphere is recorded at the central segment where the arc transformed into concave shape. The annual moment energy release during earthquake decreases to more than two orders of magnitude past the North Andaman towards north under post-seismic deformation phase. Higher depths of continuity of events are presumably associated with more dipping Benioff zones in both the Indo-Myanmar and Andaman-Nicobar convex arcs. These observations obviously account for tectonic subdivision of the margin near concave shape arc around the central part. Absence of vol- canism, presence of splay faults in the back-arc, sharp reduction in seismicity near central segment are interpreted to be caused by major tectonic impact of the NNE-ward converging buoyant Ninety-east Ridge against the Asian Plate. Shallowest dip, small elastic thickness, weak converging Indian litho- sphere, and evidences of series of en-echelon blocks off the eastern side of the broken northern Ninety- east Ridge might be incapable of generating great earthquake in this area.

关键词： Myanmar-Andaman-Sumatra margin double arc Ninety-east Ridge buoyancy.

Plasmonic-enhanced electrochemical detection of volatile biomarkers with gold functionalized TiO_2 nanotube arrays

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Journal of Materials Science & Technology 2018年第6期34卷 905-913页

作者： Dhiman Bhattacharyya Pankaj Kumar York R.Smith Swomitra K.mohanty Mano Misra Department of Metallurgical Engineering University of Utah Department of Chemical Engineering University of Utah

Titania nanotubular arrays （TNA） synthesized via electrochemical anodization is a stable and versatile material, widely studied for photocatalytic and sensing applications, whereas nano-sized gold particles are a known plasmonic material. Semiconductor-metal nanocomposites in isolated, embedded, or encapsulated form, when irradiated with proper light frequency can exhibit localized surface plasmon resonance （LSPR） effect. This effect can result in improved light adsorption and electrical properties of a material. In this study, we report the enhanced visible light photo-response of LSPR induced volatile organic biomarker vapor sensing at room temperature using a Au-embedded TNA electrochemical sensor. Two mechanisms are proposed. One based on classical physics （band theory）, which explains operation under non-irradiated conditions. The second mechanism is based on the coupling of classical and quantum physics （molecular orbitals）, and explains sensor operation under irradiated conditions.

关键词： TiO2 nanotube arrays Au particles Surface plasmon resonance Electrochemical sensor

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生活在沙漠里的鱼

中学生英语 2024年第17期 21-21页

作者： Moushumi mohanty 乔雅

我们都知道鱼生活在水中。但是,有一种鱼生活在沙漠中。难以置信?好吧,有一种鱼叫肺鱼,产于非洲。当河水泛滥时,河水会流到周围干燥的地方,形成小湖。这种鱼生活在这些湖里。但是,当这些湖泊干涸时,肺鱼不会死亡。它们把自己埋进湿泥里...

我们都知道鱼生活在水中。但是,有一种鱼生活在沙漠中。难以置信?好吧,有一种鱼叫肺鱼,产于非洲。当河水泛滥时,河水会流到周围干燥的地方,形成小湖。这种鱼生活在这些湖里。但是,当这些湖泊干涸时,肺鱼不会死亡。它们把自己埋进湿泥里,特别是如果它们深入地下,那它们可以在那里生存几个月。有时,这些鱼在地下几米处被发现。

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