Results 51 to 60 of about 9,446,943 (295)
Reconstructing enzyme evolution by protein engineering
FEBS Letters, EarlyView.Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler +2 more
wiley +1 more source
High Power Added Efficiency Enhancement-Mode Γ-Gate RF HEMT With High/Low p-GaN Doping Profile
IEEE Journal of the Electron Devices Society$0.5~\mu $ m enhancement-mode (E-mode) p-GaN $\Gamma $ -gate RF HEMT with engineered Mg doping profile in p-GaN layer was studied for high power amplifier application.
Hsien-Chin Chiu +6 more
doaj +1 more source
Design and Simulation for a High-efficiency Class-B Power Amplifier
MATEC Web of Conferences, 2017 A class-B power amplifier with high output power and high power added efficiency (PAE) is designed in this paper. Based on the ADS tools of load-pull and source-pull, the optimal load impedance and source impedance can be obtained, respectively.
Jiang Wei, Lin Qian, Wu Haifeng
doaj +1 more source
Engineering peptides into antibodies—opportunities and strategies for therapeutic innovation
FEBS 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
The Journal of EngineeringPower amplifier design is an important topic in communication systems. Improving the efficiency of a power amplifier has long been a key interest to RF designers.
Mohammad Soruri, Patrizia Livreri
doaj +1 more source
A Design of Power Amplifier using Enhanced Simple Real Frequency Technique
ARO-The Scientific Journal of Koya UniversityIn this paper, a novel discrete wide-band microstrip power amplifier (PA) is designed and fabricated based on the enhanced simple real frequency technique (ESRFT) to achieve a higher power added efficiency (PAE) over a wide frequency range compared to ...
Alireza Golestanifar +2 more
doaj +1 more source
Chemical Engineering Transactions, 2021 Regeneration is a widely implemented method in a thermal power plant for increasing the power plant efficiency. In a typical regenerative method, extracted steam from a steam turbine is mixed with cooling water in an open feed water heater to increase ...
Somchart Chantasiriwan
doaj +1 more source
A unified approach to high efficiency microwave power amplifier design [PDF]
, 1999 A systematic approach to the design of high efficiency microwave power amplifiers is presented. The technique makes use of second and third harmonic terminating idlers to achieve major improvements in output power, gain and power added efficiency.
Giannini, Franco +8 more
core +1 more source
Liver organoids: modelling complexity in homeostasis and disease
FEBS 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
Research on load adaptive impedance matching of magnetic resonant wireless power transfer system
Gong-kuang zidonghua, 2020 In view of problem that current impedance matching methods ca't automatically adjust load impedance of magnetic resonant wireless power transfer system(MR-WPT) when load changes, which leads to reduction of energy transfer efficiency of the system, a ...
BAI Jingcai +3 more
doaj +1 more source