Results 31 to 40 of about 474 (139)

Optimization of Energy Efficiency in Photovoltaic Water Pumping Systems Using Neural Networks

Energy Science &Engineering, Volume 14, Issue 4, Page 2153-2181, April 2026.
This study investigates an optimal control strategy for a photovoltaic (PV) water pumping system aimed at improving efficiency and autonomy in off‐grid applications. The system uses an induction motor with direct torque control and compares three maximum power point tracking (MPPT) techniques: neural network–based MPPT, Incremental Conductance (IC ...
Sihem Ghoudelbourk, Habib Benbouhenni, Z. M. S. Elbarbary, Mohamed Benidir   +3 more
wiley   +1 more source

Dynamic Covalent Polymeric Foams: En Route to a Sustainable Lightness

ChemSusChem, Volume 19, Issue 5, 13 March 2026.
Dynamic covalent polymer foams (DCPFs) combine lightweight cellular structures with adaptive polymer networks, enabling self‐healing, reprocessability, and recyclability. By integrating reversible covalent bonds into foam architectures, these materials open new pathways toward sustainable porous polymers within a circular materials economy.
Antoine Adjaoud, Anaë Girault‐Fodil, Farida Baraka, Pierre Verge   +3 more
wiley   +1 more source

Emergent Freestanding Complex Oxide Membranes for Multifunctional Applications

Advanced Materials, Volume 38, Issue 16, 17 March 2026.
This review surveys freestanding oxide membranes and covers fabrication and three pathways for studies and devices: strain‐free and strained membranes, and van der Waals‐integrated heterostructures. We show how coupled oxide responses map onto these routes and cross‐couple to expand behaviors.
Baowen Li, Yanran Liu, Jinjin Liu, Josephine Si Yu See, Kaijian Xing, Dong‐Chen Qi, Xiao Renshaw Wang   +6 more
wiley   +1 more source

A 15-μW, 103-fs step, 5-bit capacitor-DAC-based constant-slope digital-to-time converter in 28nm CMOS

, 2019
2017 IEEE Asian Solid-State Circuits Conference (A-SSCC), Grand Hilton Hotel, Seoul, Korea, 6-8 November 2017This paper proposes a power-efficient capacitor-array-based digital-to-time converter (DTC) using a constant-slope approach.
Siriburanon, Teerachot, Zong, Zhirui, Chen, Peng, Zheng, Has, Zhang, Feifei, Staszewski, Robert Bogdan   +5 more
core   +2 more sources

Analysis of a Novel Brushless Doubly Fed Reluctance Generator Based Wind Energy Conversion System

Energy Science &Engineering, Volume 14, Issue 3, Page 1226-1240, March 2026.
BDFRG based grid connected wind energy conversion system. ABSTRACT This paper presents a grid connected Brushless Doubly‐Fed Reluctance Generator (BDFRG) based wind energy conversion system. It offers a reliable and cost‐effective solution since its brushless and cage‐less rotor structure eliminates the need for slip rings, reducing maintenance costs ...
Subir Datta, John Lalsanglien, Subhasish Deb, Robert Singh, C. Rohmingtlunga, Md. Minarul Islam, Taha Selim Ustun   +6 more
wiley   +1 more source

A digital-to-time converter design for quantization noise compensation in fractional-N phase-locked loops

, 2023
This thesis introduces an arithmetic-based digital-to-time converter (DTC) adopted in fractional-N phase-locked loop (PLL) for quantization noise compensation.
Zhang, Shenjian
core  

Device Performance of Emerging Photovoltaic Materials (Version 6)

Advanced Energy Materials, Volume 16, Issue 7, 18 February 2026.
Efficiency of single junction perovskite (circles), organic (hexagons), dye sensitized (pentagons), kesterite (diamonds), Sb2Se3 (right triangle), and AgBiS2 (left triangles) solar cells at emerging‐pv.org over the last decade. ABSTRACT This 6th annual Emerging PV Report surveys peer‐reviewed advances since August 2024 across perovskite, organic ...
Osbel Almora, Agustin O. Alvarez, Derya Baran, Carlos I. Cabrera, Luigi A. Castriotta, Bruno Ehrler, Sule Erten‐Ela, Kenjiro Fukuda, Fei Guo, Jens Hauch, Anita W.Y. Ho‐Baillie, T. Jesper Jacobsson, Rene A. J. Janssen, Thomas Kirchartz, Maria A. Loi, Richard R. Lunt, Xavier Mathew, Jie Min, David B. Mitzi, Mohammad K. Nazeeruddin, Ana F. Nogueira, Ulrich W. Paetzold, Nam‐Gyu Park, Barry P. Rand, Henry Snaith, Takao Someya, Christian Sprau, Lulu Sun, Karen Forberich, Christoph J. Brabec   +29 more
wiley   +1 more source

A 1.6ps peak-INL 5.3ns range two-step digital-to-time converter in 65nm CMOS

, 2018
A wide range high resolution 2-stage digital-to-time converter (DTC) is presented. It uses a counter in the first stage and a digitally controlled delay line in the second stage to decouple the range versus resolution trade-off. Background calibration is
Elmallah, Ahmed, Ahmed Elkholy, Mostafa Gamal Ahmed, Elkholy, Ahmed, Hanumolu, Pavan Kumar, Ahmed, Mostafa Gamal, Pavan Kumar Hanumolu, Ahmed Elmallah, Woo-Seok Choi, Choi, Woo Seok   +9 more
core   +1 more source

Distinct alterations of adiponectin, fibroblast growth factor 21 (FGF‐21), and insulin‐like growth factor binding protein 2 (IGFBP‐2) link dysmetabolism with cognitive decline across the Alzheimer's disease spectrum

Alzheimer's &Dementia, Volume 22, Issue 2, February 2026.
Abstract INTRODUCTION Metabolic disorders are risk factors for Alzheimer's disease (AD), although underlying mechanisms remain unclear. We investigated the relationship between peripheral metabolic markers – adiponectin, fibroblast growth factor 21 (FGF‐21), and insulin‐like growth factor binding protein 2 (IGFBP‐2) – and AD.
Caroline Dallaire‐Théroux, Helena L. Denis, Rosalie Cottez, Cyntia Tremblay, Amélie Provencher, Josue Valentin‐Escalera, Manon Leclerc, Andreanne Loiselle, Marine Tournissac, Olivier Potvin, Sylvie Belleville, Anne Gangloff, Frederic Picard, Henrik Zetterberg, Consortium for the Early Identification of Alzheimer's Disease – Quebec (CIMA‐Q), Frédéric Calon   +15 more
wiley   +1 more source

A Novel Parallel DTC Segmentation Scheme for Fractional-N Digital PLLs

, 2020
In this paper, we propose a new parallel segmentation scheme for the digital/time converter (DTC) which is employed in fractional-N digital phase-locked loops (PLLs) to cancel out the quantization error induced by the digital DS modulator.
Vo, Tuan Minh
core   +1 more source