Results 51 to 60 of about 161,238 (304)

Influence of Extension Length of Rotor End Windings on the Three-Dimensional Electromagnetic Field and Temperature Rise in the Large Turbine Generator End Zone With Magnetic Screen

open access: yesIEEE Access, 2020
Leakage magnetic field from the rotor end windings affects obviously the electromagnetic losses and temperature of end components in the turbine generator end zone with magnetic screen. As the capacity of turbine generator increases, this effect of rotor
Han Jichao   +4 more
doaj   +1 more source

β‐Catenin/c‐Myc Axis Modulates Autophagy Response to Different Ammonia Concentrations

open access: yesAdvanced Biology, Volume 9, Issue 3, March 2025.
Ammonia, detoxified by the liver into urea and glutamine, impacts autophagy differently at varying levels. Low ammonia activates autophagy via c‐Myc and β‐catenin, while high levels suppress it. Using Huh7 cells and Spf‐ash mice, c‐Myc's role in cytoprotective autophagy is revealed, offering insights into hyperammonemia and potential therapeutic ...
S. Sergio   +11 more
wiley   +1 more source

Composite Thue-Morse zone plates

open access: yesOptics Express, 2016
We present a new family of diffractive lenses, composite Thue-Morse zone plates (CTMZPs), formed by multiple orders of Thue-Morse zone plates (TMZPs). The typical structure of a CTMZP is a composite of two concentric TMZPs. The focusing properties of the CTMZPs with different parameters have been investigated both theoretically and experimentally ...
Wenzhuo, Ma, Shaohua, Tao, Shubo, Cheng
openaire   +2 more sources

Geometric Optimization and Mechanical Performance Enhancement of Auxetic Structures for High‐Impact Applications Through Fused Deposition Modeling

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the mechanical performance of three auxetic structures, identifying a re‐entrant‐star hybrid as the most effective for impact absorption. Finite element simulations and experiments demonstrate significant gains in energy absorption and flexural strength after geometric optimization. This study investigates the mechanical performance
Malik Hassan   +4 more
wiley   +1 more source

A unique Toxoplasma gondii haplotype accompanied the global expansion of cats

open access: yesNature Communications, 2022
Toxoplasma gondii can infect all warm-blooded animals, with felidae being the definitive hosts. Despite this broad host range, most clinical and animal isolates belong to few clonal lineages. Here, Galal et al. perform whole-genome sequencing of isolates
Lokman Galal   +7 more
doaj   +1 more source

Laser Metal Deposited Ti4822 Hollow Pipe: Experimental and Computational Modelling Study

open access: yesAdvanced Engineering Materials, EarlyView.
Laser metal deposition (LMD) of a crack‐free built Ti4822 alloys is challenging. This article reports outstanding characteristics of a hollow pipe that is built with LMD technology when a predicted, nontransformation substrate temperature of 800 °C is used.
Sadiq A. Raji   +5 more
wiley   +1 more source

M-Bonacci Zone Plates for Ultrasound Focusing

open access: yesSensors, 2019
In this work, we present a thorough analysis on M-bonacci zone plates for ultrasound focusing applications. These planar lenses are capable of providing bifocal focusing profiles with equal intensity in both foci and become very appealing for a wide ...
Sergio Pérez-López   +2 more
doaj   +1 more source

Variations in the crustal structure and strength of plate coupling along the Ryukyu subduction zone

open access: yesGeoscience Letters, 2023
The Ryukyu trench-arc-back arc system is part of the subduction margins of the Philippine Sea plate. Previous studies have indicated that several geophysical and geological characteristics reveal significant variations (including convergent rate ...
Wen-Bin Doo   +4 more
doaj   +1 more source

Composite Electrospun Fibers Containing Optimized B‐ and Cu‐Doped Bioactive Glass Sol‐Gel Particles for Potential Soft Tissue Engineering Applications

open access: yesAdvanced Engineering Materials, EarlyView.
This article describes the preparation and characterization of poly(ε‐caprolactone) electrospun composite fibers incorporating sol‐gel‐derived bioactive glass particles doped with B and Cu. Scanning electron microscopy, energy‐dispersive X‐ray spectroscopy, Fourier‐transform infrared spectroscopy, contact angle, acellular bioactivity, mechanical and ...
Elisa Piatti   +5 more
wiley   +1 more source

Diffraction Efficiency of Phase Type Zone-plate and Zone-plate Interferometer.

open access: yesJournal of the Japan Society for Precision Engineering, 1996
ゾーンプレート干渉法,あるいはフィゾー干渉法と組み合わせたゾーンプレート干渉法では,鮮明な干渉じまを得るために,ゾーンプレートの回折効率を調節して,参照光と測定光の強度を同じにしなければならない.そこで位相型回折格子の各次数の回折効率を理論的に計算した.デューティ比と位相差を変えた格子の回折効率を検討したところ,実験と理論はほぼ一致した.この際,位相差の測定を正確に行うために,光変調素子を用いた透過物体の位相測定装置を作り,位相差の測定を行った.ゾーンプレートの回折効率の調節を位相差の操作で行った.回折効率の計算に基づき参照波面と測定波面の光強度が等しくなる条件のゾーンプレートを作り,透過光と回折光によるゾーンプレート干渉じまを鮮明にすることができた.また,フィゾー干渉法と組み合わせた干渉でも ...
Hatsuzo TASIIIRO   +6 more
openaire   +2 more sources

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