Results 31 to 40 of about 309 (132)

Wind Tunnel Testing on Start/Unstart Characteristics of Finite Supersonic Biplane Wing

International Journal of Aerospace Engineering, Volume 2013, Issue 1, 2013., 2013
This study describes the start/unstart characteristics of a finite and rectangular supersonic biplane wing. Two wing models were tested in wind tunnels with aspect ratios of 0.75 (model A) and 2.5 (model B). The models were composed of a Busemann biplane section.
Hiroshi Yamashita, Naoshi Kuratani, Masahito Yonezawa, Toshihiro Ogawa, Hiroki Nagai, Keisuke Asai, Shigeru Obayashi, James J. McGuirk   +7 more
wiley   +1 more source

Atomic Layer Deposition in Transistors and Monolithic 3D Integration

Advanced Functional Materials, Volume 36, Issue 41, 21 May 2026.
Transistors are fundamental building blocks of modern electronics. This review summarizes recent progress in atomic layer deposition (ALD) for the synthesis of two‐dimensional (2D) metal oxides and transition‐metal dichalcogenides (TMDCs), with particular emphasis on their enabling role in monolithic three‐dimensional (M3D) integration for next ...
Yue Liu, Taoyu Zou, Cheng‐Yan Xu, Liang Zhen, Yang Li, Yong‐Young Noh   +5 more
wiley   +1 more source

Control of Reynolds number in a high speed wind tunnel [PDF]

Journal of Aerospace Technology and Management, 2009
A conceptual control model for the Reynolds number test based on isentropic relations was established for the supersonic wind tunnel. Comparison of the system response of the model simulation and the actual wind tunnel test data was made to design the ...
Maurício G. Silva, Victor O.R. Gamarra, Vitor Koldaev   +2 more
doaj  

Plant Responses to Anomalous Heat and Drought Events in the Sonoran Desert

Global Change Biology, Volume 31, Issue 5, May 2025.
What are the impacts of region‐wide heat and drought events on desert vegetation? This multi‐scale assessment shows that columnar cacti and succulent trees show acute plant stress across the Sonoran Desert. The expected increased frequency of heat and drought events will likely have landscape‐wide impacts that could fundamentally reshape populations of
Benjamin T. Wilder, Kevin R. Hultine, Wetherbee Bryan Dorshow, Sula E. Vanderplank, Blanca R. López, Alfonso Medel‐Narváez, Monica Marvan, Kristen Kindl, Aryn Musgrave, Shane Macfarlan, Exequiel Ezcurra   +10 more
wiley   +1 more source

Infra‐Through Ultrasonic Piezoelectric Acoustic Vector Sensor Particle Rejection System

Smart Materials Research, Volume 2012, Issue 1, 2012., 2012
Sensor elements which employ fine filaments are often vulnerable to particulate fouling when used in certain operational field conditions. Depending on the size, attraction level, thermal and electrical conduction, and charge accumulation properties of the particles, erroneous readings can be easily generated in such “dirty” environments.
Scott E. Cravens, Ronald M. Barrett, Tao Li   +2 more
wiley   +1 more source

Tree demographics and soil charcoal evidence of fire disturbances in an inaccessible forest atop the Mount Lico inselberg, Mozambique

PLANTS, PEOPLE, PLANET, Volume 7, Issue 1, Page 229-244, January 2025.
Highland forests of Mozambique have been strongly modified by human activities for millennia. Some highlands have sheer rock cliffs and are highly inaccessible to people and appear relatively undisturbed. Evidence from the forest and soils of inaccessible Mount Lico show that the fire regime has changed over the recent millennia.
Colin J. Courtney Mustaphi, Philip J. Platts, Simon Willcock, Jonathan R. Timberlake, Jo Osborne, Hermenegildo Matimele, Hanniah S. Osgood, Veronica M. Muiruri, Maria Gehrels, Julian Bayliss, Rob Marchant   +10 more
wiley   +1 more source

Aerodynamic Losses in Turbines with and without Film Cooling, as Influenced by Mainstream Turbulence, Surface Roughness, Airfoil Shape, and Mach Number

International Journal of Rotating Machinery, Volume 2012, Issue 1, 2012., 2012
The influences of a variety of different physical phenomena are described as they affect the aerodynamic performance of turbine airfoils in compressible, high‐speed flows with either subsonic or transonic Mach number distributions. The presented experimental and numerically predicted results are from a series of investigations which have taken place ...
Phil Ligrani, Ting Wang
wiley   +1 more source

Numerical Investigation of a Supersonic Wind Tunnel Diffuser Optimization

Aerospace
The objective of this study is to enhance the methodology for the design of a supersonic wind tunnel, improving the process with advanced computational techniques.
Riccardo Nicoletti, Francesco Margani, Luca Armani, Antonella Ingenito, Chihiro Fujio, Hideaki Ogawa, Seoeum Han, Bok Jik Lee   +7 more
doaj   +1 more source

Comparative Natural Gas Venting Pipe Damage Stress Prediction Study Based on Multiple Machine Learning Methods

Advances in Civil Engineering, Volume 2025, Issue 1, 2025.
Stress damage in operational natural gas venting pipes is a complex issue that requires pipeline designs tailored to specific operational conditions. This study aims to accurately predict operational stress during the blow‐off process by leveraging design and operational parameters to assess potential pipeline damage. Five machine learning (ML) methods—
Zhenning Fan, Yuetong Zhang, Wanli Li, ShiLi Shang, Hui He, JianWei Bi, Yuhang Zhang, Hongkun Guo, Yanchao Yue, Monica Santamaria-Ariza   +9 more
wiley   +1 more source

Notes on the automatic control of a blowdown wind tunnel [PDF]

, 1966
This report briefly describes salient results obtained during commissioning Or the stagnation pressure control system of the N.P.L. 15 in x 10 in (38.1 cm x 25.4 cm) blowdown wind tunnel.
L. C. Ward, P. G. Pugh
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