Search Results - "Singh, Ravindra P."

Effect of cyclone Nilofar on mesospheric wave dynamics as inferred from optical nightglow observations from Mount Abu, India by Singh, Ravindra P., Pallamraju, Duggirala

“…Mesospheric nightglow intensities at three emissions (O2(0–1), OH(6–2) bands, and Na(589.3 nm)) from a low‐latitude location, Gurushikhar, Mount Abu (24.6°N,…”
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Application of peptide nucleic acid towards development of nanobiosensor arrays by Singh, Ravindra P., Oh, Byung-Keun, Choi, Jeong-Woo

“…Peptide nucleic acid (PNA) is the modified DNA or DNA analogue with a neutral peptide backbone instead of a negatively charged sugar phosphate. PNA exhibits…”
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A Third Angular Momentum of Photons by Sahoo, Pathik, Singh, Pushpendra, Manna, Jhimli, Singh, Ravindra P., Hill, Jonathan P., Nakayama, Tomonobu, Ghosh, Subrata, Bandyopadhyay, Anirban

“…Photons that acquire orbital angular momentum move in a helical path and are observed as a light ring. During helical motion, if a force is applied…”
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Multi-User Nonlinear Optical Cryptosystem Based on Polar Decomposition and Fractional Vortex Speckle Patterns by Mandapati, Vinny Cris, Vardhan, Harsh, Prabhakar, Shashi, Sakshi, Kumar, Ravi, Reddy, Salla Gangi, Singh, Ravindra P, Singh, Kehar

“…In this paper, we propose a new multiuser nonlinear optical cryptosystem using fractional-order vortex speckle (FOVS) patterns as security keys. In…”
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Scalable QKD Postprocessing System With Reconfigurable Hardware Accelerator by Venkatachalam, Natarajan, Shingala, Foram P., C, Selvagangai, S, Hema Priya, S, Dillibabu, Chandravanshi, Pooja, Singh, Ravindra P.

“…Key distillation is an essential component of every quantum key distribution (QKD) system because it compensates for the inherent transmission errors of a…”
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Application of electrochemically prepared polypyrrole–polyvinyl sulphonate films to DNA biosensor by Arora, Kavita, Chaubey, Asha, Singhal, Rahul, Singh, Ravindra P., Pandey, M.K., Samanta, S.B., Malhotra, B.D., Chand, Subhash

“…Double stranded calf thymus deoxyribonucleic acid (DNA) was physisorbed onto polypyrrole–polyvinyl sulphonate (PPY–PVS) films electrochemically deposited onto…”
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Mitigating the Source-Side Channel Vulnerability by Characterisation of Photon Statistics by Sharma, Tanya, Biswas, Ayan, Ramakrishnan, Jayanth, Chandravanshi, Pooja, Singh, Ravindra P.

“…Quantum key distribution (QKD) theoretically offers unconditional security. Unfortunately, the gap between theory and practice threatens side-channel attacks…”
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Experimental Side Channel Analysis of BB84 QKD Source by Biswas, Ayan, Banerji, Anindya, Chandravanshi, Pooja, Kumar, Rupesh, Singh, Ravindra P.

“…A typical implementation of BB84 protocol for quantum communication uses four laser diodes for transmitting weak coherent pulses, which may not have the same…”
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Prospects of Organic Conducting Polymer Modified Electrodes : Enzymosensors by Singh, Ravindra P.

“…Organic conducting polymer modified electrodes (OCPMEs) have emerged as potential candidates for electrochemical biosensors due to their easy preparation…”
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Vulnerability in Free Space QKD Due to Detection Coupling Mismatch by Sharma, Tanya, Biswas, Ayan, Chandravanshi, Pooja, Prabhakar, Shashi, Singh, Ravindra P.

“…Practical implementations of QKD protocols involve devices which are not perfect, and an eavesdropper may exploit this to gain information leading to attacks…”
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Experimental shot noise measurement using the imperfect detection- A special case for pulsed laser by Rani, Anju, Ramakrishnan, Jayanth, Sharma, Tanya, Chandravanshi, Pooja, Biswas, Ayan, Singh, Ravindra P.

“…Measuring the quantum fluctuations of a laser source is the first task in performing continuous variable quantum key distribution protocols. The quantum…”
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Mesospheric Temperature Inversions Observed in OH and O2 Rotational Temperatures From Mount Abu (24.6°N, 72.8°E), India by Singh, Ravindra P., Pallamraju, Duggirala

“…We present a detailed investigation of upper mesospheric temperature inversions (MTIs) based on around 4.5 years of data of O2 and OH nightglow emission…”
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Multi-objective optimization design of die-sinking electric discharge machine (EDM) machining parameter for CNT-reinforced carbon fibre nanocomposite using grey relational analysis by Mausam, Kuwar, Sharma, Kamal, Bharadwaj, Gaurav, Singh, Ravindra P.

“…In this research work, the grey relational analysis (GRA) is used as an optimization tool to find out the suitable process parameters for the machining of…”
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Producing optical vortices through forked holographic grating: study of polarization by Jaiswal, Virendra K., Singh, Ravindra P., Simon, R.

“…It is important to know what happens to initial polarization during the formation of optical vortices. We use a computer-generated forked holographic grating…”
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On the latitudinal distribution of mesospheric temperatures during sudden stratospheric warming events by Singh, Ravindra P., Pallamraju, Duggirala

“…Mesospheric rotational temperatures from O2(0‐1) and OH(6‐2) band nightglow emissions that originate from 94 and 87 km altitudes, respectively, were obtained…”
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Antibodies against high frequency Gerbich 2 antigen (anti-Ge2): A real challenge in cross matching lab by Singh, Ravindra

“…Transfusion management of patients′ alloimmunized against high-prevalence erythrocyte antigens is often problematic in emergency situations. Gerbich (Ge) is…”
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Interhemispheric Meridional Circulation During Sudden Stratospheric Warming by Laskar, Fazlul I., McCormack, John P., Chau, Jorge L., Pallamraju, Duggirala, Hoffmann, Peter, Singh, Ravindra P.

“…Although sudden stratospheric warming (SSW) is mainly a northern high‐latitude phenomena, there are several reports of a concomitant global dynamical response…”
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Pullout strength of misplaced pedicle screws in the thoracic and lumbar vertebrae - A cadaveric study by Saraf, Shyam K., Singh, Ravindra P., Singh, Vakil, Varma, Ashish

“…Background The objective of this cadaveric study was to analyze the effects of iatrogenic pedicle perforations from screw misplacement on the mean pullout…”
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3D incoherent imaging using an ensemble of sparse self-rotating beams by Bleahu, Andrei-ioan, Gopinath, Shivasubramanian, Kahro, Tauno, Angamuthu, Praveen Periyasamy, John Francis Rajeswary, Aravind Simon, Prabhakar, Shashi, Kumar, Ravi, Salla, Gangi Reddy, Singh, Ravindra P., Kukli, Kaupo, Tamm, Aile, Rosen, Joseph, Anand, Vijayakumar

“…Interferenceless coded aperture correlation holography (I-COACH) is one of the simplest incoherent holography techniques. In I-COACH, the light from an object…”
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On Deriving Gravity Wave Characteristics in the Daytime Upper Atmosphere Using Radio Technique by Mandal, Subir, Pallamraju, Duggirala, Karan, Deepak K., Phadke, Kedar A., Singh, Ravindra P., Suryawanshi, Pradip

“…The importance of neutral wave dynamics in the understanding of the upper atmospheric processes is well known. Conventionally, optical methods are used to…”
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