Results 71 to 80 of about 35,746 (178)

A simple method for converting frequency domain aerodynamics to the time domain [PDF]

open access: yes
A simple, direct procedure was developed for converting frequency domain aerodynamics into indicial aerodynamics. The data required for aerodynamic forces in the frequency domain may be obtained from any available (linear) theory.
Dowell, E. H.
core   +1 more source

Experimental Study on Flow Heat Transfer Characteristics of Lead-bismuth Eutectic under Heaving Condition

open access: yesYuanzineng kexue jishu, 2023
Lead-based reactor coolant has high thermal conductivity, good thermal expansion and strong natural circulation ability, which has outstanding advantages in safety, economy and miniaturization.
ZHAO Yafeng;LIU Zhipeng;WANG Chenglong;YU Qifan;SU Guanghui;QIU Suizheng;TIAN Wenxi
doaj  

AI-driven spectral analysis of soil heaving for automated surveys in rail transport infrastructure

open access: yesAI in Civil Engineering
The expansion of rail transport infrastructures necessitates accurate and efficient soil surveys to ensure long-term stability and performance, particularly in regions prone to soil heaving.
Artem Zaitsev   +4 more
doaj   +1 more source

The Distribution Characteristics of Frost Heaving Forces on Tunnels in Cold Regions Based on Thermo-Mechanical Coupling

open access: yesApplied Sciences
To address the freezing damage to tunnel lining caused by frost heaving of the surrounding rock in water-rich tunnels in cold regions, a numerical thermo-mechanical coupling model for tunnel-surrounding rock that considers the anisotropy of frost heave ...
Yujia Sun, Lei Peng, Qionglin Li
doaj   +1 more source

A verification of unsteady Navier-Stokes solutions around oscillating airfoils [PDF]

open access: yes
A finite difference solution code for the two dimensional Navier-Stokes equations was combined with a moving-grid system. The thin layer Navier-Stokes equations with a turbulence model are solved in a time-accurate manner in order to study the unsteady ...
Nakamichi, J.
core   +1 more source

Effects of Non-Sinusoidal Motion and Effective Angle of Attack on Energy Extraction Performance of a Fully-Activated Flapping Foil

open access: yesJournal of Applied Fluid Mechanics, 2021
Flapping foil energy harvesting systems are considered as highly competitive devices for conventional turbines. Several research projects have already been carried out to improve performances of such new devices. This paper is devoted to study effects of
A. Boudis   +5 more
doaj  

Natural resource base of the Fairbanks North Star Borough [PDF]

open access: yes, 1967
This report on the natural resource base of the Fairbanks North Star Borough is one of several continuing research projects related to community planning in Alaska.
Haring, R.C., Wolff, E.N.
core  

Dynamic Characterization of the Crew Module Uprighting System for NASAs Orion Crew Module [PDF]

open access: yes
The Orion Crew Module Uprighting System is a set of five airbag that are responsible for the uprighting of the crew module in the case of an inverted splashdown.
Bernatovich, Michael   +5 more
core   +1 more source

Heaving Concrete

open access: yesRoadsides
Aaron Bradshaw examines how encounters between trees and hardened surfaces reveal other-than-human agents in urban spaces.
openaire   +1 more source

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