Results 71 to 80 of about 32,976 (190)

Impact of Position Measurement Angle Error on Performance of PMSM Drives for Electric Power Steering in a Wide Speed Range

open access: yesIET Electric Power Applications, Volume 20, Issue 1, January/December 2026.
The position measurement angle error (contains measurement delay angle and periodic angle error) plays a significant role in PMSM drives, especially when the motor is rotating in the flux weakening (FW) region. In this paper, the impact of the position angle error on the performance of the PMSM drives for EPS in a wide speed range has been elaborated ...
Xi Liu   +6 more
wiley   +1 more source

STAND IMITATOR OF THE ENGINE AS A UNIVERSAL MEANS OF ENSURING THE DEVELOPMENT AND TESTING OF REGULATORS

open access: yesАвіаційно-космічна техніка та технологія, 2020
There is described the work on the project, carried out at the enterprise Element JSC for the creation of aircraft gas turbine engine simulator stands, for the maintenance and testing of some digital regulators for helicopter and aircraft engines ...
Анна Григорьевна Буряченко   +3 more
doaj   +1 more source

Self‐Supervised Monocular Depth Estimation: A Review of Paradigms, Evaluation Protocols, and Technical Advances

open access: yesIET Image Processing, Volume 20, Issue 1, January/December 2026.
Self‐supervised monocular depth estimation recovers 3D scene geometry from a single image without ground‐truth labels. This review synthesizes stereo‐ and video‐based paradigms, benchmarks, and emerging optimization strategies, and identifies future research avenues toward robust, real‐time applications.
Haobo Xie, Yiquan Wu
wiley   +1 more source

Tiwari-Das nanofluid model for magnetohydrodynamics (MHD) natural-convective flow of a nanofluid adjacent to a spinning down-pointing vertical cone

open access: yesPropulsion and Power Research, 2018
In this article, the natural-convective flow of an electrically conducting nanofluid adjacent to a spinning down-pointing vertical cone in the presence of transverse magnetic field is studied.
Mohammad Aghamajidi   +3 more
doaj   +1 more source

Fe(3): An Evaluation Tool for Low-Altitude Air Traffic Operations [PDF]

open access: yes, 2018
The concepts of unmanned aircraft system traffic management (UTM) and urban air mobility (UAM) are introducing high-density operations in low altitude airspace in closer proximity to populated areas than conventional high-altitude air traffic.
Ishihara, Abraham   +4 more
core   +2 more sources

Photogrammetry-Based Analysis of the On-Orbit Structural Dynamics of the Roll-Out Solar Array [PDF]

open access: yes
The Roll-Out Solar Array (ROSA) flight experiment was launched to the International Space Station (ISS) on June 3rd, 2017. ROSA is an innovative, lightweight solar array with a flexible substrate that makes use of the stored strain energy in its ...
Banik, Jeremy A.   +2 more
core   +1 more source

METHOD OF CALCULATION OF THE FUNCTION OF DISTRIBUTION OF CONTROL PARAMETERS RADIO VIVATIONAL COMPLEXES OF WATER TRANSPORT

open access: yesАвіаційно-космічна техніка та технологія, 2019
The article shows that the use of modern navigation systems and complexes for controlling the movement of water transport vehicles allows for safe navigation. It is substantiated that the proper work of navigation equipment – radio navigation complexes –
Олена Анатоліївна Дакі
doaj   +1 more source

Baseline Assumptions and Future Research Areas for Urban Air Mobility Vehicles [PDF]

open access: yes
NASA is developing Urban Air Mobility (UAM) concepts to (1) create first-generation reference vehicles that can be used for technology, system, and market studies, and (2) hypothesize second-generation UAM aircraft to determine high-payoff technology ...
Antcliff, Kevin   +3 more
core   +1 more source

Developing Primary Propulsion for the Ares I Crew Launch Vehicle and Ares V Cargo Launch Vehicle [PDF]

open access: yes, 2007
In accordance with the U.S. Vision for Space Exploration, NASA has been tasked to send human beings to the moon, Mars, and beyond. The first stage of NASA's new Ares I crew launch vehicle (Figure 1), which will loft the Orion crew exploration vehicle ...
Burt, Rick   +3 more
core   +1 more source

NONLINEAR DYNAMICS MODEL FOR THE ANALYSIS OF THE OF THE KNOWLEDGE MANAGEMENT SYSTEM INFLUENCE ON HIGH-TECHNOLOGICAL PROJECTS IMPLEMENTATION

open access: yesАвіаційно-космічна техніка та технологія, 2019
The article determines that at the present stage of the project management development in information-oriented society, the decision-making process on the efficiency of the knowledge management system assessment is complicated, due to the lack of ...
Василь Михайлович Вартанян   +1 more
doaj   +1 more source

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