Zobrazeno 1 - 10 of 65 pro vyhledávání: '"F. PRECHTL"'
1
Design Requirements for Autonomous Multivehicle Surface-Underwater Operations
Autor: Brian Bingham, Eric F. Prechtl, Richard A. Wilson
Publikováno v: Marine Technology Society Journal. 43:61-72
Future autonomous marine missions will depend on the seamless coordination of autonomous vehicles: unmanned surface vehicles (USVs), unmanned underwater vehicles (UUVs) and unmanned aerial vehicles (UAVs). Such coordination will enable important inte
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dba669f51a9ecd812bdc08ee6b1907ab
https://doi.org/10.4031/mtsj.43.2.2
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2
Design of a high efficiency, large stroke, electromechanical actuator
Autor: Steven R. Hall, Eric F. Prechtl
Publikováno v: Smart Materials and Structures. 8:13-30
Large stroke, electromechanical actuator designs are considered. Special emphasis is placed on actuators designed to power a trailing edge servo-flap system for feedback control of helicopter rotor vibration, acoustics and aerodynamic performance. A
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::af5c40a2b281b8106d3b535a7d319a1c
https://doi.org/10.1088/0964-1726/8/1/002
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3
Development of a piezoelectric servoflap for helicopter rotor control
Autor: Steven R. Hall, Eric F. Prechtl
Publikováno v: Smart Materials and Structures. 5:26-34
A servoflap that uses a piezoelectric bender to deflect a trailing edge flap for use on a helicopter rotor blade was designed, built, and tested. This servoflap design is an improvement over a design developed previously at MIT. The design utilizes a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::76cb1912f2f1ebafeb3161bf34a5248d
https://doi.org/10.1088/0964-1726/5/1/004
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4
Facile Synthesis of α-Hydroxy Amides and Esters by Direct Autoxidation of Their Titanium Enolates
Autor: Markus Metz, F. Prechtl, Michael Renz, Waldemar Adam
Publikováno v: Scopus-Elsevier
The autoxidation of titanium enolates (2), derived from amides and esters (1), afforded either directly the corresponding α-hydroxy car- bonyl compounds (3) or, by variation of the reaction conditions, the γ-hydroxy β-keto ester (4) from ester (1g
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e942a57b092c99c902be7acfc199d691
https://doi.org/10.1055/s-1994-25524
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6
ChemInform Abstract: Facile Synthesis of α-Hydroxy Amides and Esters by Direct Autoxidation of Their Titanium Enolates
Autor: Markus Metz, F. Prechtl, Michael Renz, Waldemar Adam
Publikováno v: ChemInform. 25
The autoxidation of titanium enolates (2), derived from amides and esters (1), afforded either directly the corresponding α-hydroxy car- bonyl compounds (3) or, by variation of the reaction conditions, the γ-hydroxy β-keto ester (4) from ester (1g
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0654c2b8da9b2aa9c12d57fcfdb13aa0
https://doi.org/10.1002/chin.199440078
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10
Preliminary testing of a Mach-scaled active rotor blade with a trailing-edge servo flap
Autor: Steven R. Hall, Eric F. Prechtl
Publikováno v: SPIE Proceedings.
The results of preliminary tests on an active helicopter rotor blade are presented. The blade, a Mach-scaled model of a CH-47D helicopter blade, has a discrete piezoelectric actuator embedded within the spar that controls a trailing edge flap via a p
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4bf3b479378f23772979eed6b1a0c4e7
https://doi.org/10.1117/12.350709
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