Results 61 to 70 of about 12,411 (357)

Concept and design of a hall-effect thruster with integrated thrust vector control [PDF]

, 2022
Willy Stark, Norman Gondol, Martin Tajmar   +2 more
openalex   +1 more source

Top hat electrostatic analyzer for far-field electric propulsion plume diagnostics [PDF]

, 2006
The design, development, and testing of the top hat electric propulsion plume analyzer (TOPAZ) are presented for far-field electric propulsion plume diagnostics.
Gallimore, Alec D., Victor, Allen L., Zurbuchen, Thomas H.   +2 more
core   +1 more source

A Review on Sensor Technologies, Control Approaches, and Emerging Challenges in Soft Robotics

Advanced Robotics Research, EarlyView.
This review provides an introspective of sensors and controllers in soft robotics. Initially describing the current sensing methods, then moving on to the control methods utilized, and finally ending with challenges and future directions in soft robotics focusing on the material innovations, sensor fusion, and embedded intelligence for sensors and ...
Ean Lovett, Maxwell Hammond, Niloufar Seyfi, Amirreza Fahim Golestaneh, Venanzio Cichella, Caterina Lamuta   +5 more
wiley   +1 more source

Experimental Investigation of the CFHT-27 Cusped-Field Hall Thruster Performance

Journal of Aerospace Technology and Management, 2023
Cusped-field Hall thrusters (CFHT) have significant potential for use in many space missions due to their simplicity, long life and high efficiency. CFHT-27, designed and developed at the Bogazici University Space Technologies Laboratory (BUSTLab), is a
Emin Saridede,  Selcen Yediyildiz, Murat Celik   +2 more
doaj  

Degradable Magnetic Composites from Recycled NdFeB Magnets for Soft Actuation and Sensing

Advanced Robotics Research, EarlyView.
This work presents a degradable soft magnetic composite made from recycled NdFeB particles embedded in a gelatin‐based organogel. The material is processed into magnetic sensors and soft robotic components, which can later be dissolved in a green solvent to recover NdFeB magnetic particles.
Muhammad Bilal Khan, Lin Guo, Kilian Schäfer, Eduardo Sergio Oliveros‐Mata, Xiaotao Wang, Florian Hofmann, Matthias Lutzi, Mark Suppelt, Proloy Taran Das, Jan Schmidtpeter, Imants Dirba, Stephan Rinderknecht, Mario Kupnik, Denys Makarov, Oliver Gutfleisch   +14 more
wiley   +1 more source

Predicting Hall Thruster Operational Lifetime [PDF]

40th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, 2004
†‡ A simple analytic model predicted Hall thruster channel erosion based on thruster geometry, operating conditions, and magnetic field configuration. This model relied on a one-dimensional representation of the plasma with a fixed ionization fraction and variable ion energies based on the magnetic field distribution.
Manzella, David, Yim, Jihn, Boyd, Iain D.   +2 more
openaire   +1 more source

Comparisons in Performance of Electromagnet and Permanent-Magnet Cylindrical Hall-Effect Thrusters [PDF]

, 2010
Three different low-power cylindrical Hall thrusters, which more readily lend themselves to miniaturization and low-power operation than a conventional (annular) Hall thruster, are compared to evaluate the propulsive performance of each.
Fisch, N. J., Gayoso, J. C., Polzin, K. A., Raitses, Y.   +3 more
core   +1 more source

Measurement of XeI and XeII velocity in the near exit plane of a low-power Hall effect thruster by light induced fluorescence spectroscopy

, 2013
Near exit plane non-resonant light induced fluorescence spectroscopy is performed in a Hall effect low-power Xenon thruster at discharge voltage of 250V and anode flow rate of 0.7mg/sec.
Baranov V., D. Pagano, F. Scortecci, Huang W., V. Biancalana, Y. Dancheva   +5 more
core   +1 more source

Boltzmann expansion in a radiofrequency conical helicon thruster operating in xenon and argon [PDF]

, 2015
A low pressure (~ 0.5 mTorr in xenon and ~ 1 mTorr in argon) Boltzmann expansion is experimentally observed on axis within a magnetized (60 to 180 G) radiofrequency (13.56 MHz) conical helicon thruster for input powers up to 900 W using plasma ...
Boswell, R., Charles, C., Takahashi, K.
core   +1 more source

Intercalation‐Induced Phase Transitions in Ferroelectric α‐In2Se3

Advanced Science, EarlyView.
Using the electrolyte gating technique, the van der Waals ferroelectric semiconductor α‐In2Se3 undergoes a series of transitions from a ferroelectric semiconductor to a dirty metal and finally to a metal, accompanied by a structural transformation. Concurrently, the ferroelectric hysteresis window progressively narrows and eventually disappears with ...
Xin He, Zhihao Gong, Tao Wang, Baoyu Wang, Chen Liu, Ding Wang, Yinchang Ma, Pu Feng, Chenhui Zhang, Weijin Hu, Kai Liu, Hua Wang, Xixiang Zhang   +12 more
wiley   +1 more source