Results 61 to 70 of about 7,272,342 (262)

Maximum power point tracking for variable-speed fixed-pitch small wind turbines [PDF]

open access: yes, 2009
Variable-speed, fixed-pitch wind turbines are required to optimize power output performance without the aerodynamic controls. A wind turbine generator system is operated such that the optimum points of wind rotor curve and electrical generator curve ...
Jovanovic, Milutin   +7 more
core   +1 more source

Design of a Data Logging System for a Small Scale Hydrokinetic Turbine

open access: yesASM Science Journal, 2021
A suitable data logger is needed for data collection to demonstrate the practicality of Hydrokinetic Turbine (HKT) in a rural application. Currently, commercial data loggers are expensive and consume extensive amounts of energy.
DIANA ANAK RINGGAU
doaj   +1 more source

Engineering peptides into antibodies—opportunities and strategies for therapeutic innovation

open access: yesFEBS Letters, EarlyView.
Peptides and antibodies occupy complementary therapeutic niches. Peptides recognize difficult targets in a compact format, while antibodies add specificity, long half‐life, and effector functions. This review examines strategies that merge both modalities—peptide grafting into loops, terminal and Fc fusions, and bioconjugation—highlighting how ...
Jinling Wang   +2 more
wiley   +1 more source

SCHOTTKY DIODE TRIPLER IN THE 3-MM WAVE RECEIVER FOR INVESTIGATION OF ATMOSPHERIC GASES

open access: yesRadio Physics and Radio Astronomy, 2015
A Schottky diode frequency tripler for the 3-mm receiver system designed for observation of ozone and carbon monoxide spectral lines at frequencies 110.836 and 115.271 GHz, respectively, is developed. The used varactor parameters are investigated and its
V. I. Piddyachiy
doaj   +1 more source

Liver organoids: modelling complexity in homeostasis and disease

open access: yesFEBS Letters, EarlyView.
Studying liver in vitro has been challenging because simple 2D cell cultures fail to capture liver's cellular and architectural complexity. To bridge this gap, scientists increasingly use organoids, 3D liver models which better mimic liver composition and function. This review examines recent advances in liver organoid complexity and realism, discusses
Anna M. Dowbaj, Meritxell Huch
wiley   +1 more source

Compact power conversion device with continuous output regulating range [PDF]

open access: yes, 2015
The current invention relates to a power conversion device(10), for supplying a load (11) with a PWM signal through an inductive output filter (105),the power conversion device(10) being characterized in that it comprises: a power conversion module(101 ...

core  

Power Supply Design Considerations for 400Hz Aircraft Applications

open access: yes, 2020
In this study a 5kW power supply for aircraft applications has been designed. Boost type power factor correction topology Delta rectifier complies with military standards of conducted emissions and is selected as a front-end rectifier for 400 Hz mains ...
Kyyrä, Jorma   +2 more
core   +1 more source

Analyses of power output of piezoelectric energy-harvesting devices directly connected to a load resistor using a coupled piezoelectric-circuit finite element method [PDF]

open access: yes, 2009
A coupled piezoelectric-circuit finite element model (CPC-FEM) is proposed for the first time to study the power output of a vibration-based piezoelectric vibration-based piezoelectric energy harvesting devices (EHDs) that is directly connected to a ...
Zhu, Meiling   +2 more
core   +1 more source

Ligand‐dependent transcriptional heterogeneity in cell cycle gene expression delays G1/S entry

open access: yesFEBS Letters, EarlyView.
EGF and HRG induce distinct G1/S progression programs in ErbB2‐amplified BT474 breast cancer cells. Despite activating the potent ErbB2–ErbB3 heterodimer, HRG does not accelerate cell‐cycle entry. Instead, EGF promotes earlier restriction‐point passage via ERK–FOS signaling, whereas HRG activates the AKT–MYC axis, driving transcriptional heterogeneity ...
Ririn Rahmala Febri   +5 more
wiley   +1 more source

GaN-based MIS HEMT with SiAlN gate dielectric achieving over 70% PAE and 10 W mm−1 at 8 GHz

open access: yesApplied Physics Express
We achieved a simultaneous record-high power-added efficiency (PAE) of 71.4% and an output power density of 10.4 W mm ^−1 at 8 GHz in an AlGaN/GaN metal-insulator-semiconductor (MIS) high-electron-mobility transistor (HEMT) on a free-standing GaN ...
Yuichi Minoura   +4 more
doaj   +1 more source

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