Development of a Power Factor Corrected High Current Supercapacitor Charger for a Surge Resistant UPS [PDF]
, 2012 The Uninterrupted Power Supplies (UPSs) provide short term power back up to electrical loads when the mains power fail. Usually UPSs employ battery packs as the energy storage device.
Zhang, Xu
core
Acute caffeine treatment protects the developing retina from ischemia‐induced cell death
FEBS Open Bio, EarlyView.Caffeine reduces cell death in the developing retina under ischemia (OGD). This effect does not involve BDNF upregulation or antioxidant pathways (NRF2/VEGF). Neuroprotection occurs mainly through adenosine A2A receptor antagonism, decreasing glutamate release and excitotoxicity, highlighting caffeine's potential as an acute neuroprotective agent in ...
Amanda Alves Nascimento +6 more
wiley +1 more source
Binary Genetic Encoding for the Synthesis of Mixed-Mode Circuit Topologies [PDF]
, 2012 A binary genetic encoding (BGE) representation for the automatic synthesisof mixed-mode circuit topologies, is introduced. First, the genetic encodingof unity-gain cells (UGCs), such as voltage (VF) and current followers (CF), andvoltage (VM) and current
MIGUEL AURELIO DUARTE VILLASEÑOR +2 more
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Simulation and research of battery simulator based on sliding mode control
Dianzi Jishu Yingyong, 2022 Based on the current reversible chopper circuit, the Buck-Boost converter is constructed by sliding mode control method, and a battery simulator with two-way current flow in topological structure is implemented to simulate the charging and discharging ...
Hu Xia, Cao Wenzhang, Dai Yuanyuan
doaj +1 more source
Directed evolution of enzymes at the crossroads of tradition and innovation
FEBS Open Bio, EarlyView.An iterative cycle of data‐driven enzyme optimization comprising four stages: genetic diversification of a template enzyme, expression of protein variants, high‐throughput evaluation, and machine‐learning‐guided redesign of the next variant library.
Maria Tomkova +2 more
wiley +1 more source
Fast charging techniques and compact integrated implementations for electrochemical double layer capacitors in portable applications [PDF]
, 2014 The widespread increase in the range and types of portable electronic devices in the past decades has resulted in higher requirements for energy storage and conversion modules.
Bodnar, Rares
core
A change-detection algorithm for short-circuit fault detection in closed-loop AC drives [PDF]
, 2013 This paper deals with an on-line method for turn-to-turn short-circuit fault detection in low-voltage permanent-magnet synchronous machine drives. Due to the closed-loop control, the fault effects are reflected in the voltage.
Johan Gyselinck +10 more
core +1 more source
International Journal of Electrical Power & Energy SystemsThe generator circuit breaker is a special breaker located between a pumped storage machine and a step-up transformer. The first requirement for generator circuit breaker is to interrupt fault currents with delayed current zero, preventing the damage of ...
Weijie Wen +4 more
doaj +1 more source
Optimizing photoexcitation conditions for time‐resolved X‐ray solution scattering experiments
FEBS Open Bio, EarlyView.Time‐resolved X‐ray solution scattering (TR‐XSS) is a powerful technique to visualize how proteins change their structure in real time after light activation. Selecting the right laser photoexcitation conditions—fluence, excitation geometry, and sample refresh rate—is critical to maximize the experimental signal while avoiding unwanted side effects ...
Matteo Levantino
wiley +1 more source
A modular current-mode high-precision winner-take-all circuit [PDF]
, 1994 Trabajo presentado al "ISCAS'94" celebrado en Londres del 30 de Mayo al 2 de Junio de 1994.In this paper we present a Winner-Take-All (WTA) circuit realized using current-mode circuit design techniques.
Linares-Barranco, Bernabé +1 more
core +1 more source