Year-2020: Recent submissions

Now showing items 261-280 of 497

Self-reliant feature in DC-DC converters for open circuit faults

Bhakar, P. S.; Kalaiselvi, J. (2021-06-18)

With vast applications of dc-dc converters in grids and micro grids, the need of a vigorous converter with fault tolerant capability becomes very important. Dual active bridge (DAB) and series resonant converters (SRC) ...
An interaction less duo control strategy for bi-polar voltage source converter in renewables integrated multi-terminal HVDC (MTDC) grids

Kumar, A. S.; Padhy, B. P. (2021-06-18)

The P V F or P V 2F double droop control is commended for its ability to regulate both the dc voltage and frequency in a decentralized approach. However, a convincing response is not achieved due to an interaction between ...
Common mode impedance shaping choke to attenuate the conducted EMI in three phase drive

Kumar, M.; Jayaraman, K. (2021-06-18)

This paper presents an impedance shaping technique to reshape the common mode (CM) impedance profile of three phase common mode choke. The CM impedance offered by a designed CM choke with specific core area and number ...
Analysis and implementation of a three-phase matrix-based isolated AC-DC converter with transformer leakage energy management

Gorla, N. B. Y.; Saha, J.; Jayraman, K.; Panda, S. K. (2021-06-18)

In this paper, a three-phase matrix-based AC to DC power converter is presented considering all the practical implementation aspects for battery charging applications. Unlike some of the matrix-based proposal in the ...
Communication-free approach for frequency support in the MTDC grids - a comparative study

Kumar, A. S.; Padhy, B. P. (2021-06-18)

Frequency Support (FS) through the Multi-Terminal HVDC (MTDC) grids is become obligatory by most of the Transmission System Operators (TSOs). Providing this support without any communication between converter stations ...
Advancements in microgrid voltage control schemes

Chauhan, K.; Sodhi, R. (2021-06-18)

Due to the intermittent behaviour of the renewable energy sources, containing the voltage rise issues and maintaining voltage regulation throughout the microgrids is of paramount importance. This paper presents a detailed ...
Effect of texturing and vertex angle on silicon based multilayer absorber

Ghai, V.; Bhinder, J.; Agnihotri, P. K.; Singh, H. (2021-06-16)

We report a process to fabricate optically graded uniformly distributed high-density textured conical pillars on Si surface, which has an ultrahigh absorption of 98.7% in 300–2000 nm range. To this end, chemical etching ...
Flow of wormlike micellar solutions through a long micropore with step expansion and contraction

Sasmal, C. (2021-06-16)

In this study, an extensive numerical investigation has been carried out in order to understand the flow characteristics of a wormlike micellar (WLM) solution through a long micropore with step expansion and contraction. ...
Revised lifetime of the 11/2 − state in 45Sc via coulomb excitation∗

Minda, M. M.; Napiorkowski, P. J.; Kumar, R.; Saxena, M.; Dutt, S; Agarwal, A.; Ahmed, I.; Bhattacharya, S.; Jhingan, A.; Kaur, J.; Habior, M. K.; Kumar, M.; Kumar, S.; Kumar, D.; Nanal, V.; Palit, R.; Rai, N. K.; Shuaib, M.; Sood, A.; Stolarz, A.; Trivedi, T.; Tyagi, A. K.; Bhowmik, R. K.; Wollersheim, H. J. (2021-06-16)

A Coulomb-excitation measurement to study low-energy electromagnetic properties of 45Sc has been performed at the IUAC facility in New Delhi, India using a 70 MeV 32S projectile from the 15UD tandem accelerator. The ...
Evidence of narrow range high spin population in incomplete fusion∗

Sooda, A.; Kumar, P.; Sahoo, R. N.; Singh, P. P.; Yadav, A.; Sharma, V. R.; Sharma, M. K.; Kumar, R.; Singh, R. P.; Muralithar, S.; Singh, B. P.; Bhowmik, R. K. (2021-06-16)

Particle (p, α)–γ-coincidence experiment has been performed to probe incomplete fusion dynamics in the 12C+169Tm system at 5–7.5 MeV/A. Spin distributions of different reaction products populated via xn and α/2αxn ...
Phase separation effects on a partially miscible viscous fingering dynamics

Suzuki, R. X.; Nagatsu, Y.; Mishra, M.; Ban, T. (2021-06-16)

Classical viscous fingering (VF) instability, the formation of finger-like interfacial patterns, occurs when a less viscous fluid displaces a more viscous one in porous media in immiscible and fully miscible systems. ...
Digitized frequency modulated thermal wave imaging for detection and estimation of osteoporosis

Sharma, A.; Mulaveesala, R.; Dua, G.; Arora, V.; Kumar, N. (2021-06-16)

—In recent decades active infrared thermography gained vital importance in the field of non-destructive testing and evaluation. It is non-invasive, non-ionizing, reliable, quantitative and qualitative imaging modality ...
Delayed leidenfrost phenomenon during impact of elastic fluid droplets

Dhar, P.; Mishra, S. R.; Gairola, A.; Samanta, D. (2021-06-16)

This article highlights the role of non-Newtonian (elastic) effects on the droplet impact phenomenon at temperatures considerably higher than the boiling point, especially at or above the Leidenfrost regime. The ...
Rhodamine-based fluorescent probe for sequential detection of Al3+ ions and adenosine monophosphate in water

Kaur, R.; Saini, S.; Kaur, N.; Singh, N.; Jang, D. O. (2021-06-16)

Organic nanoparticles (N1) were prepared by dispersing thiophene-conjugated rhodamine derivative 1 in a buffer solution (10 mM TRIS, pH 7.4, containing 1% DMSO, v/v). N1 selectively recognized Al3+ ions through the ...
Effect of electroplated interlayers on bonding mechanism of cold-sprayed copper on SS316L steel substrate

Singh, S.; Singh, H. (2021-06-16)

Cold-spray technology is being actively considered to develop copper (Cu) coatings to shield the plasma-facing components in Tokamaks, however, adequate adhesion is yet difficult to achieve. In the current study, ...
Multiparticle production and geometric scaling in 5.44 TeV Xe–Xe collisions at the CERN large hadron collider using wounded quark model

Chaturvedi, O. S. K.; Srivastava, P. K.; Singh, A.; Raina, P. K.; Singh, B. K. (2021-06-16)

Recently, CERN Large Hadron Collider has performed a collision experiment of xenon–xenon (Xe–Xe) nuclei at √sN N = 5.44TeV. The experiment based on Xe–Xe nuclei can provide a deeper understanding of the particle production ...
Triple band polarisation sensitive metamaterial absorber for terahertz applications

Jain, P.; Singh, A. K.; Bansal, S.; Prakash, K.; Hadda, L.; Gupta, N.; Singh, A. K.; Kumar, S.; Sardana, N. (2021-06-16)

—In this work, we propose a novel-shaped metamaterial absorber (MMA) for terahertz (THz) applications. The proposed MMA comprises of metallic layers separated by gallium arsenide (GaAs) substrate demonstrating three ...
Combined effects of fluid yield stress and geometrical arrangement on natural convection in a square duct from two differentially heated horizontal cylinders

Mishra, L.; Chhabra, R. P. (2021-06-16)

Laminar natural convection in Bingham plastic fluids has been investigated from two differentially heated cylinders arranged either one above the other or along the diagonal of the square enclosure. The coupled momentum ...
Fusion of the borromean nucleus Be9 with a 197Au target at near-barrier energies

Kaushik, M.; Gupta, G.; Thakur, S.; Krishnamoorthy, H.; Singh, P. P.; Parkar, V. V.; Nanal, V.; Shrivastava, A.; Pillay, R. G.; Mahata, K.; Ramachandran, K.; Pal, S.; Palshetkar, C. S.; Pandit, S. K. (2021-06-15)

To probe the role of the intrinsic structure of the projectile on subbarrier fusion, measurement of fusion cross sections has been carried out in a 9 Be + 197Au system in the energy range Ec.m./VB ≈ 0.82 to 1.16 ...
Interaction between rarefaction wave and viscous fingering in a langmuir adsorbed solute

Rana, C.; Mishra, M. (2021-06-15)

The evolution of dissolved species in a porous medium is determined by its adsorption on the porous matrix through the classical advection-diffusion processes. The extent to which the adsorption affects the solute ...

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