Results 51 to 60 of about 234,715 (304)

High Spatial Resolution X-Ray Spectroscopy of the IC443 Pulsar Wind Nebula and Environs [PDF]

, 2015
Deep Chandra ACIS observations of the region around the putative pulsar, CXOU J061705.3+222127, in the supernova remnant IC443 reveal an ~5$^{\prime\prime}$-radius ring-like structure surrounding the pulsar and a jet-like feature oriented roughly north ...
Bucciantini, Niccolò, Castelletti, Gabriela, Clarke, Tracy, Karovska, Margarita, Pavlov, George G., Swartz, Douglas A., van der Horst, Alexander J., Weisskopf, Martin C., Yukita, Mihoko, Zavlin, Vyacheslav E.   +9 more
core   +3 more sources

Scenario-Based Investigation on the Effect of Partial Shading Condition Patterns for Different Static Solar Photovoltaic Array Configurations

IEEE Access, 2021
This paper presents an in-depth analysis and investigation on the performance of static photovoltaic (PV) array configurations subjected to various partial shading conditions (PSCs).
Mohammad Nor Rafiq Nazer, Abdulfattah Noorwali, Mohammad Faridun Naim Tajuddin, Mohammad Zubair Khan, Mohamad Afiq Izzat Ahmad Tazally, Jubaer Ahmed, Thanikanti Sudhakar Babu, Nur Hafizah Ghazali, Chinmay Chakraborty, Nallapaneni Manoj Kumar   +9 more
doaj   +1 more source

Performance Enhancement of Partial Shaded Photovoltaic System With the Novel Screw Pattern Array Configuration Scheme

IEEE Access, 2022
The performance of the solar photovoltaic system is affected by the unpredictable phenomenon of partial shading. This causes the mismatch losses that suppress the power generation of healthy PV modules in it.
B. Praveen Kumar, Santhan Kumar Cherukuri, Kalyan Raj Kaniganti, N. Karuppiah, Rathinam Muniraj, Thanikanti Sudhakar Babu, Hassan Haes Alhelou   +6 more
doaj   +1 more source

Fluid Biomarkers of Disease Burden and Cognitive Dysfunction in Progressive Supranuclear Palsy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Identifying objective biomarkers for progressive supranuclear palsy (PSP) is crucial to improving diagnosis and establishing clinical trial and treatment endpoints. This study evaluated fluid biomarkers in PSP versus controls and their associations with regional 18F‐PI‐2620 tau‐PET, clinical, and cognitive outcomes.
Roxane Dilcher, Charles B. Malpas, Stuart J. McDonald, William T. O’Brien, Craig Despott, Kelly L. Bertram, Matthew P. Pase, Lukas Frontzkowski, Meng Law, Terence J. O’Brien, Lucy Vivash   +10 more
wiley   +1 more source

Modelling and analysis of PV configurations (alternate TCT-BL, total cross tied, series, series parallel, bridge linked and honey comb) to extract maximum power under partial shading conditions

, 2020
Photovoltaics (PV) are widely used as renewable energy sources for standalone and grid connected PV system. But these PV systems face major reduction in output power and efficiency due to Partial Shading Conditions (PSCs).
A. Desai, Suresh Mikkili
semanticscholar   +1 more source

Disperse Partial Shading Effect of Photovoltaic Array by Means of the Modified Complementary SuDoKu Puzzle Topology

Energies, 2023
This paper presents a novel modified Complementary SuDoKu puzzle (MC-SDKP) topology for the static reconfiguration of photovoltaic (PV) arrays. It was developed with the aim of enhancing the power output of a PV array which is exposed to partially shaded
Cheng-En Ye, Cheng-Chi Tai, Yu-Pei Huang
doaj   +1 more source

Hopfield Neural Networks for Online Constrained Parameter Estimation With Time‐Varying Dynamics and Disturbances

International Journal of Adaptive Control and Signal Processing, EarlyView.
This paper proposes two projector‐based Hopfield neural network (HNN) estimators for online, constrained parameter estimation under time‐varying data, additive disturbances, and slowly drifting physical parameters. The first is a constraint‐aware HNN that enforces linear equalities and inequalities (via slack neurons) and continuously tracks the ...
Miguel Pedro Silva
wiley   +1 more source

Algorithms for FFT Beamforming Radio Interferometers

, 2019
Radio interferometers consisting of identical antennas arranged on a regular lattice permit fast Fourier transform beamforming, which reduces the correlation cost from $\mathcal{O}(n^2)$ in the number of antennas to $\mathcal{O}(n\log n)$.
Masui, Kiyoshi W., Ng, Cherry, Paradise, Adiv, Shaw, J. Richard, Smith, Kendrick M., Vanderlinde, Keith   +5 more
core   +1 more source

Mechanical Properties of Architected Polymer Lattice Materials: A Comparative Study of Additive Manufacturing and CAD Using FEM and µ‐CT

Advanced Functional Materials, EarlyView.
This study examines how pore shape and manufacturing‐induced deviations affect the mechanical properties of 3D‐printed lattice materials with constant porosity. Combining µ‐CT analysis, FEM, and compression testing, the authors show that structural imperfections reduce stiffness and strength, while bulk material inhomogeneities probably enhance ...
Oliver Walker, Thierry Roland, Damien Favier, Antoine Egele, Michael Heymann, Cosima Stubenrauch   +5 more
wiley   +1 more source

Performance Enhancement of a Partially Shaded Photovoltaic Array by Optimal Reconfiguration and Current Injection Schemes

Energies, 2021
The output of a photovoltaic array is reduced considerably when PV panels are shaded even partially. The impact of shading causes an appreciable loss in power delivery, since the PV panels are connected in series and parallel to contribute to the ...
Srinivasan Vadivel, C. S. Boopthi, Sridhar Ramasamy, Mominul Ahsan, Julfikar Haider, Eduardo M. G. Rodrigues   +5 more
doaj   +1 more source