Results 131 to 140 of about 228,330 (246)

Monocular Visual Measurement System Uncertainty Analysis and One-Step End-End Estimation Upgrade. [PDF]

Sensors (Basel)
Zhou K, Chu W, Zhao P.
europepmc   +1 more source

Effect of Postweld Heat Treatment on Laser‐Welded Duplex Stainless Steel: Crystallographic Patterns and Fatigue Behavior

steel research international, EarlyView.
Laser welding of duplex stainless steel disrupts phase balance, promotes nitride precipitation, and reduces fatigue resistance. Postweld heat treatment restores austenite and dissolves nitrides, but the resulting crystallography and phase morphology still impair fatigue performance.
Aparecida Silva Magalhães, Charles Henrique Xavier Morais Magalhães, Milton Sergio Fernandes de Lima, Leonardo Barbosa Godefroid, Flávia Braga de Oliveira, Leonardo Lagoeiro, Geraldo Lúcio de Faria   +6 more
wiley   +1 more source

NASA-FAA helicopter Microwave Landing System curved path flight test [PDF]

An ongoing series of joint NASA/FAA helicopter Microwave Landing System (MLS) flight tests was conducted at Ames Research Center. This paper deals with tests done from the spring through the fall of 1983.
Hamlin, J. R., Swenson, H. N., Wilson, G. W.   +2 more
core   +1 more source

The Impact of Reduced Vision on Simulated Flight Performance in Novice Pilots: Toward Establishing Performance-Based and Operationally Representative Visual Acuity Standards. [PDF]

Hum Factors
Lynch A, Ayala N, Cao S, Niechwiej-Szwedo E, Kearns S, Irving E.   +5 more
europepmc   +1 more source

An enhanced aircraft engine gas path diagnostic method based on upper and lower singleton type-2 fuzzy logic system

Journal of the Brazilian Society of Mechanical Sciences and Engineering, 2019
P. Calderano, M. G. C. Ribeiro, R. P. F. Amaral, M. Vellasco, R. Tanscheit, E. P. de Aguiar   +5 more
semanticscholar   +1 more source

Woven Eutectic Lamellar Structures Lead to Ultrahigh Strength and Energy Absorption Capacity in Additively Manufactured Lattice Structures

Small Structures, Volume 6, Issue 5, May 2025.
Herein, AlCoCrFeNi2.1 is selected to produce lattice structures by selective laser melting. The as‐printed lattice structures consist of numerous colonies of nanosized eutectic lamellar structures which are bent and interwind with each other to form a woven microstructure. The unique microstructure leads to unprecedented effective metal strength, yield
Zhiyong Ji, Xingyu Pan, Longlong Wang, Xintian Wang, Xu Chen, Hanwei Fu, Chunlei Qiu   +6 more
wiley   +1 more source

Understanding Extended Projected Profile (EPP) Trajectory Error Using a Medium-Fidelity Aircraft Simulation [PDF]

A critical component of Trajectory-Based Operations is the ability for a consistent and accurate 4-dimensional trajectory to be shared and synchronized between airborne and ground systems as well as amongst various ground automation systems.
Guerreiro, Nelson M., Underwood, Matthew C.   +1 more
core   +1 more source

Complementary Design of Two Types of Signals for Avionic Phased-MIMO Weather Radar. [PDF]

Sensors (Basel)
Geng Z, Wang L, Meng F, Wu D, Zhu D.
europepmc   +1 more source

Embedded Interactions and Selective Disclosure: Network Effects on Conversations aboard Skylab

Symbolic Interaction, EarlyView.
How do absent others influence our interactions? We argue in this paper that interactions are embedded within networks formed by chains of specific relationships between known third parties. The anticipation of future interactions with external others conditions our interpretation of the current situation and affects our behavior in the interaction. We
Michael Schultz, Leslie DeChurch, Noshir Contractor   +2 more
wiley   +1 more source

Detect-and-Avoid: Flight Test 6 Scripted Encounters Data Analysis [PDF]

The Unmanned Aircraft System (UAS) in the National Airspace System (NAS) project conducted Flight Test 6 (FT6) in 2019. The ultimate goal of this flight test was to produce data to inform RTCA SC-228's Phase II Minimum Operational Performance Standards ...
Wang, Wei-Ching, Wu, M. Gilbert
core   +1 more source