Results 121 to 130 of about 47,305 (354)

Calibration of the Langley 16-foot transonic tunnel with test section air removal [PDF]

open access: yes
The Langley 16-foot transonic tunnel with test section air removal (plenum suction) was calibrated to a Mach number of 1.3. The results of the calibration, including the effects of slot shape modifications, test section wall divergence, and water vapor ...
Corson, B. W., Jr.   +2 more
core   +1 more source

Enhanced Oxygen Redox Activity and Structure Stability of P2‐Type Manganese‐Based Cathodes Through Medium‐Entropy Strategy

open access: yesAdvanced Science, EarlyView.
A medium‐entropy strategy guided by ionic potential is applied to weaken TM─O bonds and suppress Jahn–Teller distortion in P2‐type cathodes, thereby enhancing the oxygen redox activity and structure stability. A medium‐entropy oxide, Na0.8Li0.1Ni0.1Cu0.1Ti0.1Mn0.6O2, demonstrates a high reversible capacity of 223.7 mAh g−1 and an energy density of 616 ...
Dongxiao Wang   +9 more
wiley   +1 more source

Space station propulsion: The advanced development program at Lewis [PDF]

open access: yes
A reference configuration was established for the initial operating capability (IOC) station. The reference configuration has assumed hydrazine fueled thrusters as the propulsion system.
Jones, R. E.
core   +1 more source

Integration of Freestanding High‐k Oxide Membranes for 2D Ferroelectric Field‐Effect Transistors

open access: yesAdvanced Science, EarlyView.
This work introduces a defect‐tolerant integration strategy that enables freestanding BaTiO3 membranes to form low‐leakage top‐gate junctions with MoS2. The resulting FeFETs exhibit a record 0.22 V nm−1 memory window, ultrahigh‐k response, and near‐ideal subthreshold swings.
Zejing Guo   +16 more
wiley   +1 more source

NASTRAN level 16 user's manual updates for aeroelastic analysis of bladed discs [PDF]

open access: yes
The NASTRAN aeroelastic and flutter capability was extended to solve a class of problems associated with axial flow turbomachines. The capabilities of the program are briefly discussed.
Elchuri, V., Gallo, A. M.
core   +1 more source

Chemical Doping Engineering of Polarization and Topological Textures in van der Waals Ferroelectric CuInP2S6

open access: yesAdvanced Science, EarlyView.
Our work reports that Li⁺ doping in CuInP2S₆ induces coexistence of high‐ and low‐polarization states, which fosters a rich spectrum of topological polar textures, such as bubbles and labyrinth domains. An unconventional flexoelectric effect is also discovered, where strain gradients can mechanically manipulate these polarization states and their ...
Lei Gao   +12 more
wiley   +1 more source

Two-stage robust power cost minimization in a natural gas compressor station

open access: diamond, 2021
Yize Meng   +3 more
openalex   +1 more source

End-wall boundary layer measurements in a two-stage fan [PDF]

open access: yes
Detailed flow measurements made in the casing boundary layer of a two-stage transonic fan are summarized. These measurements were taken at a station upstream of the fan, between all blade rows, and downstream of the last row.
Ball, C. L., Reid, L., Schmidt, J. F.
core   +1 more source

Home - About - Disclaimer - Privacy