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Torque ripple minimization with maximum utilization of inductance profile in 6/4 3-phase switched reluctance motor drives

Rana, A. K.; Teja, A. V. R. (2021-08-19)

This paper presents a novel method to fully utilize the positive slope region of SRM phase inductance profile and generate a maximum positive torque while simultaneously reducing the torque ripple effectively.The proposed ...

Thermal impact on high speed PCB interconnects

Pathania, S.; Vasa, M.; Mutnury, B.; Sharma, R. (2021-08-19)

As signal speeds increase, small imperfections start to dictate the performance of interconnects. Thermal effects are an inseparable aspect of interconnects due to self-heating caused by the flow of current, and due to ...

Bilayer graphene/HgCdTe based self-powered mid-wave IR nBn photodetector

Bansal, S.; Prakash, K.; Sharma, R.; Jain, P.; Gupta, N.; Singh, A. K.; Sardana, N.; Kumar, S. (2021-08-19)

The photoelectrical performance of a selfpowered high performance unipolar infrared (IR) photodetector is demonstrated utilizing Silvaco TCAD software. The unipolar IR photodetector is based on bilayer graphene (BLG) ...

Stochastic transport on flexible lattice under limited resources

Verma, A. K.; Gupta, A. K. (2021-08-19)

Many theoretical models have tried to study the biological transport systems with the unbending paths in the framework of totally asymmetric simple exclusion processes. However, in most cases, these models ignore the ...

Investigation on micro-residual stress distribution near hole using nanoindentation: effect of drilling speed

Tiwari, A. K.; Kumar, A.; Kumar, N.; Prakash, C. (2021-08-19)

Residual stresses are induced in the material during manufacturing operations, which considerably affect the fatigue performance and the lifespan of a mechanical work piece. The nature, magnitude, and distribution of ...

Cutaneous epithelial to mesenchymal transition activator ZEB1 regulates wound angiogenesis and closure in a glycemic status–dependent manner

Singh, K.; Sinha, M.; Pal, D.; Tabasum, S.; Gnyawali, S. C.; Khona, D.; Sarkar, S.; Mohanty, S. K.; Gonzalez, F. S.; Khanna, S.; Roy, S.; Sen, C. K. (2021-08-19)

Epithelial to mesenchymal transition (EMT) and wound vascularization are two critical interrelated processes that enable cutaneous wound healing. Zinc finger E-box binding homeobox 1 (ZEB1), primarily studied in the ...

The closed loop controller gain characterization for enhanced current quality in solar inverters coupled with weak grid

Sekhar, K. R.; Gupta, B. K.; Gedam, A. I. (2021-08-19)

Majority of solar installations are coming up in remote locations where the stiffness of the grid is very weak, enforces to connect solar inverters to weak grid. In weak grid scenario, solar inverter would inject harmonic ...

Balanced Per-Phase sequential switching to suppress circulating current in grid connected modular solar inverters

Gupta, B. K.; Sekhar, K. R.; Gedam, A. I. (2021-08-19)

In solar inverter configurations, the central and string inverters are more popular in micro grid/ utility grid connected applications. Although string inverters exhibit superior performance in terms of improved efficiency ...

Mapping of deflection caused due to hydrostatic pressure using differential SAR interferometry (DInSAR) on bhakhra dam

Tripathi, A.; Tiwari, R. K. (2021-08-18)

Microwave remote sensing is truly the most rapidly emerging field of satellite remote sensing today. In a very short span of time, it has found variety of applications in almost every field which had seen optical remote ...

Fractional order PID controller for tuning interleaved ]cuk converter

RAYEEN, Z.; TIWARI, S.; HANIF, O (2021-08-18)

In this paper, the author has focussed on the detailed modeling and analysis of a variant of cuk converter i.e. Interleaved Cuk converter (ICC), which along with having the benefits of conventional cuk converter also ...

Genetic algorithm based SHE-PWM for 1- ø and 3- ø voltage source inverters

Kumari, M.; Ali, M.; Ahmad, S.; Ashraf, I.; Azeem, A.; Tariq, M.; Arif, M. S. B.; Iqbal, A. (2021-07-14)

In medium voltage high power application of voltage source inverter (VSI), low switching frequency pulse width modulation (LSPWM) techniques offer better efficiency and better thermal management as the switching loss ...

Simulation and prototyping of saturable magnetic switch for current pulse compression

Gupta, A.; Tiwana, A. P. S.; Reddy, C. C. (2021-08-14)

Inductors utilizing the nonlinear properties of ferromagnetic materials may also be made to perform as switches. These function as magnetic switches which decrease the circuit impedance for the compression of current ...

Effect of step duration on breakdown in Needle-Plane geometry under DC step voltages

Thomas, A. J.; Reddy, C. C. (2021-08-14)

In this paper, dc electrical treeing breakdown experiments are conducted using needle-plane system. Electrical treeing test can be used for the assessment of life estimation of the insulating material by estimating the ...

An attempt to estimate DC endurance coefficient from volume resistivity

Sathyamoorthy, D.; Reddy, C. C. (2021-08-14)

Ageing is a slow process of degradation of dielectric properties of cable insulation operating at high thermal stress. Prolonged thermal stress gradually weakens the insulation and ultimately leads to failure. Therefore, ...

Space charge and DC fields of multilayer dielectrics in Plane-Parallel geometry

Muppala, P.; Reddy, C. C. (2021-08-14)

Space charge always assumes critical importance when it pertains electro-thermal problem of a dielectric subjected to dc stresses for dc cable insulation in particular. The significance of space charge only increases ...

Investigations on feasibility of fault detection in underground power cables using SFRA

Das, A.; Sehgal, C.; Reddy, C. C. (2021-08-14)

One of the most strenuous task is to locate the position of fault in power cables. There are many techniques which are available to locate faults, but each one have its own advantages and disadvantages. Contrary to the ...

Estimation of endurance coefficient of oil impregnated kraft papers using DEM

Reddy, G. N.; Singh, B.; Iyyappan; Tiwana, A. P. S.; Reddy, C. C. (2021-08-14)

Kraft paper is one of the most commonly used insulation in transformers and cables. Impregnation with transformer grade mineral oil is done to improve the electrical properties of the paper. Voltage endurance coefficient ...

QoS in software defined IoT network using blockchain based smart contract: poster abstract

Kamboj, P.; Pal, S. (2021-08-14)

Internet of things (IoT) has made human life simpler through its numerous applications by interconnecting various devices and people together in a heterogeneous network. The number of users associated with IoT in different ...

Energy level alignment and nanoscale investigation of a-TiO2/Cu-Zn-Sn-S interface for alternative electron transport layer in earth abundant Cu-Zn-Sn-S solar cells

Nisika; Kaur, K.; Arora, K.; Chowdhury, A. H.; Bahrami, B.; Qiao, Q.; Kumar, M. (2021-08-14)

Efficiency of earth abundant and pure sulfide kesterite Cu-Zn-Sn-S (CZTS) solar cell has been stagnant around 9.4% for years, while its counterpart Cu-In-Ga-Se (CIGS) reports an efficiency of more than 22%. Low open circuit ...

Predominance of M2 macrophages in gliomas leads to the suppression of local and systemic immunity

Vidyarthi, A.; Agnihotri, T.; Khan, N.; Singh, S.; Tewari, M. K.; Radotra, B. D.; Chatterjee, D.; Agrewala, J. N. (2021-08-14)

Glioblastoma is a highly prevalent and aggressive form of primary brain tumor. It represents approximately 56% of all the newly diagnosed gliomas. Macrophages are one of the major constituents of tumor-infltrating immune ...

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