Results 111 to 120 of about 471,133 (346)

Navigating new norms: a systematic review of factors for the development of effective digital tools in higher education

FEBS Open Bio, EarlyView.
What factors make for an effective digital learning tool in Higher Education? This systematic review identifies elements of a digital tool that published examples reveal to be features of an engaging and impactful digital tool. A systematic literature search yielded 25 research papers for analysis.
Akmal Arzeman, Jessica Haines, Connie Pritchard, Stephen Rutherford, Nigel Francis   +4 more
wiley   +1 more source

A Pseudo-Constant Frequency Constant On-Time Buck Converter With Internal Current Ripple Injection and Output DC Offset Cancellation

IEEE Access, 2019
A constant on-time buck converter with internal inductor current synthesizer and output DC offset cancellation technique is proposed. A fully integrated inductor current synthesizer based on valley voltage detector is employed to avoid system instability
Quan Sun, Yanzhao Ma, Zhengjie Ye, Xiaofei Wang, Hong Zhang   +4 more
doaj   +1 more source

Hands‐on protocol for preparing water‐soluble fractions from agri‐food samples for NMR‐based metabolomics analysis

FEBS Open Bio, EarlyView.
This research protocol outlines a workflow for nuclear magnetic resonance (NMR)‐based metabolomics in the agri‐food sector. Using two case studies—strawberry leaves (solid matrix) and wine (liquid matrix)—it details the procedures for sample preparation, data acquisition, and processing.
Andrea Fernández‐Veloso, Jaime Hiniesta‐Valero, Alejandra Guerra‐Castellano, Miguel A. De la Rosa, Irene Díaz‐Moreno   +4 more
wiley   +1 more source

A Novel Constant-Frequency Quasi-Resonant Converter

IEEE Access, 2018
In this paper, a new constant-frequency LL switch-capacitor (LLSC) quasi-resonant converter is proposed. Compared with the traditional frequency voltage regulation instruments, the proposed converter can effectively reduce the volume of magnetic ...
Tianyu Zhu, Yanchao Ji, Jianze Wang, Yiqi Liu   +3 more
doaj   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Fuzzy-Aided P–PI Control for Start-Up Current Overshoot Mitigation in Solid-State Lithium Battery Chargers

Applied Sciences
A battery charger for solid-state lithium battery packs was developed and implemented. The power stage used a phase-shifted full-bridge converter integrated with a current-doubler rectifier and synchronous rectification.
Chih-Tsung Chang, Kai-Jun Pai
doaj   +1 more source

Design of a New Hybrid Topology of WPT System to Achieve Load-Independent Constant-Current and Constant-Voltage Output [PDF]

, 2020
Masood Rehman, Perumal Nallagownden, Zuhairi Baharudin   +2 more
openalex   +1 more source

The role of lipid metabolism in neuronal senescence

FEBS Open Bio, EarlyView.
Disrupted lipid metabolism, through alterations in lipid species or lipid droplet accumulation, can drive neuronal senescence. However, lipid dyshomeostasis can also occur alongside neuronal senescence, further amplifying tissue damage. Delineating how lipid‐induced senescence emerges in neurons and glial cells, and how it contributes to ageing and ...
Dikaia Tsagkari, Eleftheria Panagiotidou, Nektarios Tavernarakis   +2 more
wiley   +1 more source

Rotating flux-focusing eddy current probe for flaw detection [PDF]

, 1997
A flux-focusing electromagnetic sensor which uses a ferromagnetic flux-focusing lens simplifies inspections and increases detectability of fatigue cracks about circular fasteners and other circular inhomogeneities in high conductivity material.
Fulton, James P., Namkung, Min, Nath, Shridhar C., Simpson, John W., Wincheski, Russell A.   +4 more
core   +1 more source

Constant output voltage and non-communication-based maximum efficiency tracking for wireless power transfer systems: Single current control of primary-side

, 2023
Pengcheng Zhao, Linxin Yu, Wanning Liao, Jingang Wang   +3 more
openalex   +1 more source