Results 41 to 50 of about 608,631 (290)

Transient Hydrodynamic Characteristics of a High-Speed Axial Flow Water-Jet Pump during Variable Speed Process

open access: yesJournal of Marine Science and Engineering, 2023
To investigate the transient characteristics of high-speed axial flow water-jet pumps during start-up and emergency acceleration as well as to analyze how different accelerations affect the performance of internal flow, the k–ω turbulence model of the ...
Rongsheng Zhu   +6 more
doaj   +1 more source

Cognitive Behavioral Therapy for Youth with Childhood‐Onset Lupus: A Randomized Clinical Trial

open access: yesArthritis Care &Research, Accepted Article.
Objective Our objective was to determine the feasibility and acceptability of the Treatment and Education Approach for Childhood‐onset Lupus (TEACH), a six‐session cognitive behavioral intervention addressing depressive, fatigue, and pain symptoms, delivered remotely to individual youth with lupus by a trained interventionist.
Natoshia R. Cunningham   +29 more
wiley   +1 more source

Proteomics characterization of triple-negative apocrine carcinoma reveals molecular features of progression and chemotherapy response

open access: yesScientific Reports
Triple-negative apocrine carcinoma (TNAC) is a rare and chemotherapy-insensitive subtype of triple-negative breast cancer (TNBC), characterized by specific morphology and molecular features.
Yiying Zhu   +8 more
doaj   +1 more source

Adaptive Control for Improved Virtual Synchronous Generator Under Imbalanced Grid Voltage

open access: yesIEEE Open Journal of the Industrial Electronics Society
As renewable energy continues to grow, more inverter-based distributed generators are being integrated into power grids, in which virtual synchronous generator (VSG) is widely adopted to regulate system voltage and stabilize frequency.
Yangyang Chen   +3 more
doaj   +1 more source

Structural Design and Numerical Analysis of Hoisting Device of Test Bed for Aircraft Engine

open access: yesApplied Mechanics, 2023
In this work, a test bed and stand structure were designed for the thrust test of an aircraft. The engine test rig consists of a thrust stand, test bed, transport system, and hoisting device. In this study, structural design and analysis of the stand and
Hyunbum Park
doaj   +1 more source

Adaptable Tile‐Based Pneumatic Origami through Structurally Coupled Localized Actuation

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents tile‐based pneumatic origami structures with rigid tiles and flexible fabric creases, achieving adaptable properties including morphing shape, selective multistability, and tunable stiffness. Independently pressurized folding bladders at each crease enable structurally coupled localized actuation of origami structures.
Tiantian Li, Jonathan Luntz, Diann Brei
wiley   +1 more source

An electricity-driven mobility circular economy with lifecycle carbon footprints for climate-adaptive carbon neutrality transformation

open access: yesNature Communications
Under the carbon neutrality targets and sustainable development goals, emergingly increasing needs for batteries are in buildings and electric vehicles.
Aoye Song   +3 more
doaj   +1 more source

Advancing Research on Biomaterials and Biological Materials with Scanning Electron Microscopy under Environmental and Low Vacuum Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
Herein, environmental scanning electron microscopy (ESEM) is discussed as a powerful extension of conventional SEM for life sciences. By combining high‐resolution imaging with variable pressure and humidity, ESEM allows the analysis of untreated biological materials, supports in situ monitoring of hydration‐driven changes, and advances the functional ...
Jendrian Riedel   +6 more
wiley   +1 more source

Lifecycle carbon intensity with embodied emissions of battery and hydrogen-driven integrative low-carbon systems

open access: yesCommunications Engineering
Carbon neutrality targets rely on the flexible, fast-response characteristics of batteries, and the high energy density and clean byproduct of hydrogen.
Aoye Song   +3 more
doaj   +1 more source

The interplay between geometry and numbers of blade in ducted propeller systems

open access: yesAviation
This study designs and optimizes a ducted propeller (DP) via graphical and numerical methods. Ducted propellers with a thrust-to-omega ratio ranging between 0.12 and 0.20 and blade optimizations at the design point were obtained. The geometric selection
Muhammad Dzulfikar   +3 more
doaj   +1 more source

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