Results 41 to 50 of about 1,724 (215)

PROBE AND SPECTRAL INVESTIGATIONS OF ELECTRIC PROPULSION HALL EFFECT THRUSTER

Авіаційно-космічна техніка та технологія, 2017
The work is devoted to the study of a low-power Hall Effect Thruster. The currency of developing and increasing of integral characteristics of Hall Effect Thruster with power consumption less 0,3 kW is substantiated. The main directions of low-power Hall
Сергей Николаевич Кулагин
doaj   +1 more source

Carboxylic‐Acid Functionalized Multiwalled Carbon Nanotube‐Alkane‐Based Resistive Temperature Sensor for Cold Chain Applications

Advanced Engineering Materials, EarlyView.
This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera, Philippe Marrec, A. Jorge Parola, Madalena Dionísio, Hugo Águas, Andreia F. M. Santos, Hamed Pourkheirollah, Donald Lupo, César A. T. Laia   +8 more
wiley   +1 more source

NFDI MatWerk Ontology (MWO): A BFO‐Compliant Ontology for Research Data Management in Materials Science and Engineering

Advanced Engineering Materials, EarlyView.
This article presents the NFDI‐MatWerk Ontology (MWO), a Basic Formal Ontology‐based framework for interoperable research data management in materials science and engineering (MSE). Covering consortium structures, research data management resources, services, and instruments, MWO enables semantic integration, Findable, Accessible, Interoperable, and ...
Hossein Beygi Nasrabadi, Ebrahim Norouzi, Kostiantyn Hubaiev, Jörg Waitelonis, Harald Sack   +4 more
wiley   +1 more source

Study on the Improvement of Theoretical and Electric Field Simulation Methods for the Accurate Prediction of FEEP Thruster Performance

Aerospace
In this study, we investigate and propose an improved theoretical method to more accurately predict the performance of a field-emission electric propulsion (FEEP) thruster with its complex configuration.
Jeongsik Shin, Kyun Ho Lee, Jungwon Kuk, Han Seo Ko   +3 more
doaj   +1 more source

Fault Tolerant Control of Satellite Orbital Maneuvering Based on Virtual Actuator [PDF]

علوم، فناوری و کاربردهای فضایی
In this article, a fault tolerant control based on a virtual actuator is used for the maneuvering of low earth orbit satellites that are subject to the loss of the effectiveness and additive actuator faults as well as natural disturbances such as ...
Masoud Dehnad, Morteza Farhid, Samira Mazhari Anvar   +2 more
doaj   +1 more source

Physical Configuration Design of a 10N Monopropellant Hydrazine Thruster [PDF]

فصلنامه علوم و فناوری فضایی, 2019
In this paper, design and physical configuration of various components of a 10N Monopropellant Hydrazine Thruster focusing on design calculations and optimization of catalytic combustion chamber. According to this design, a prototype of the thruster will
Hadiseh Karimaei, Mohammad Reza Salimi, Hassan Naseh, Ehsan Jokari   +3 more
doaj   +1 more source

Enhancing Strength and Electrical Conductivity in Al–Zr–Sc Conductor Alloys Through Sn and Sr Microalloying and Two‐Step Aging Treatment

Advanced Engineering Materials, EarlyView.
Trace additions of Sn and Sr combined with a two‐step aging treatment are shown to enhance the microstructure and performance of Al–Zr–Sc conductor alloys. Strength and electrical conductivity increase concurrently through accelerated precipitation of fine Al3(Sc, Zr) precipitates and improved dislocation resistance, offering a cost‐effective pathway ...
Quan Shao, Emad M. Elgallad, Alexandre Maltais, X.‐Grant Chen   +3 more
wiley   +1 more source

Performance Evaluation of Ammonium Dinitramide-Based Monopropellant in a 1N Thruster

Aerospace
The development of propulsion systems based on green propellants, as an alternative to hydrazines, has been gaining interest within the space community.
Wonjae Yoon, Vikas Khandu Bhosale, Hosung Yoon   +2 more
doaj   +1 more source

Near‐Field Electrospinning Micro‐Printhead Achieves Precise Control of Nanofiber Deposition

Advanced Engineering Materials, EarlyView.
A micro‐printhead for near‐field electrospinning enables reproducible deposition of polymer nanofibers with diameters below 50 nm. Systematic parameter studies uncover the mechanisms linking operating conditions to fiber morphology, paving the way for precise and low‐cost nanoscale 3D manufacturing.As a high‐resolution, cost‐effective, and rapid ...
Han Xu, Dario Mager, Jan G. Korvink
wiley   +1 more source

Measurement and diagnosis of miniaturized ion thruster plume

AIP Advances, 2023
A planar Langmuir probe, which can be used for both ion electric propulsion beam characteristics measurement and plasma diagnosis, was developed and applied to plume measurement and diagnosis experiments of an 8 cm Kaufman ion thruster to address the ...
Yunfan Yang, Siyin Zhou, Kang Yan, Zitong Wang, Zun Zhang, Wansheng Nie   +5 more
doaj   +1 more source