Results 21 to 30 of about 431,247 (358)
Advanced Engineering Materials, EarlyView., 2023 A numerical scheme is presented to design a lattice support for metallic components additively built via laser powder bed fusion. Results show that thermal‐induced distortion can be respectively reduced by 69%, 58%, and 50% in comparison to a uniform lattice, a fully solid support, and a truss‐based lattice support.
Jiazheng Hu +2 more
wiley +1 more source
GRAPHO-ANALYTICAL STUDIES OF DEFORMATION IN DEFORMED THIN-WALLED CONTOURS
Наукові горизонти, 2020 Increasing the levels of operational reliability of technical means of modern production involves, in particular, the optimization of the deformation parameters of individual components of these tools.
B.Sheludchenko +5 more
doaj +1 more source
Power Prediction Method for Ships Using Data Regression Models
Journal of Marine Science and Engineering, 2023 This study proposes machine learning-based prediction models to estimate hull form performance. The developed models can predict the residuary resistance coefficient (CR), wake fraction (wTM), and thrust deduction fraction (t). The multi-layer perceptron
Yoo-Chul Kim +5 more
doaj +1 more source
Project of universal test stand for underwater vehicles’ thrusters
Scientific Journal of Gdynia Maritime University, 2020 This article presents the design and implementation of the next stage of research conducted as part of the design and construction of an underwater inspection robot.
Filip Dudek +6 more
doaj +1 more source
A Review of Concepts, Benefits, and Challenges for Future Electrical Propulsion-Based Aircraft
Aerospace, 2020 Electrification of the propulsion system has opened the door to a new paradigm of propulsion system configurations and novel aircraft designs, which was never envisioned before.
Smruti Sahoo, Xin Zhao, K. Kyprianidis
semanticscholar +1 more source
Review of State-of-the-Art Green Monopropellants: For Propulsion Systems Analysts and Designers
Aerospace, 2021 Current research trends have advanced the use of “green propellants” on a wide scale for spacecraft in various space missions; mainly for environmental sustainability and safety concerns.
A. E. Nosseir, A. Cervone, A. Pasini
semanticscholar +1 more source
Analyzing Intra-Cycle Velocity Profile and Trunk Inclination during Wheelchair Racing Propulsion
Sensors, 2022 The analysis of intra-cycle velocity profile of manual wheelchair (MWC) users has been used to highlight the significant role of trunk inertia in propulsion biomechanics. Maximal wheelchair linear velocity has previously been observed to be reached after
Yoann Poulet +5 more
doaj +1 more source
Influence of Handrim Wheelchair Propulsion Training in Adolescent Wheelchair Users
Frontiers in Bioengineering and Biotechnology, 2015 Ten full time adolescent wheelchair users (ages 13-18) completed a total of three propulsion trials on carpet and tile surfaces, at a self-selected velocity, and on a concrete surface, at a controlled velocity. All trials were performed in their personal
Jennifer L Dysterheft +2 more
doaj +1 more source
Overview on Efficient Naval Power Architecture
Proceedings, 2020 Possible configurations for propulsion and electric power generation on vessels are an important field for the researcher in the naval area. The most important is electric power generation. Nowadays, diesel engines are the main prime movers, although all
Mariana Dumitrescu
doaj +1 more source
Propulsion tests on ultra-high-temperature ceramic matrix composites for reusable rocket nozzles
Journal of Advanced Ceramics, 2023 Ultra-high-temperature ceramic matrix composites (UHTCMCs) based on a ZrB2/SiC matrix have been investigated for the fabrication of reusable nozzles for propulsion.
Diletta Sciti +8 more
doaj +1 more source