Results 81 to 90 of about 245,160 (297)

Comparing Anisotropic Adaptive Strategies on the Second AIAA Sonic Boom Workshop Geometry

Journal of Aircraft, 2019
The recent release of the second AIAA sonic boom geometry offers the opportunity to review the classical anisotropic adaptive strategies for complex geometries.
A. Loseille, L. Frazza, F. Alauzet
semanticscholar   +1 more source

Blubber Thickening Driven by UCP1 Inactivation: Insights from a Cetacean‐Like Transgenic Mouse Model

Integrative Zoology, EarlyView.
UCP1 inactivation of cetaceans in mice drives BAT whitening and iWAT hyperplasia, promoting fat accumulation for aquatic adaptation. Abstract Cetaceans possess thick blubber, a specialized adipose tissue essential for thermal insulation, a streamlined body form, energy storage, and buoyancy. However, the mechanisms that underpin this adaptation are not
Qian Zhang, Yuehua Wang, Hang Zhang, Guiping Xu, Shixia Xu, Guang Yang   +5 more
wiley   +1 more source

A Numerical Approach for the Integration of Sonic Boom Requirements into the Matching Chart

Aerospace
The Matching Chart is a well-established tool in conceptual and preliminary aircraft design, providing a graphical representation of performance requirements based on wing loading (W/S) and thrust-to-weight ratio (T/W).
Samuele Graziani, Leonardo Ialongo, Davide Ferretto   +2 more
doaj   +1 more source

Secondary sonic boom [PDF]

, 2016
This thesis aims to resolve some open questions about sonic boom, and particularly secondary sonic boom, which arises from long-range propagation in a non-uniform atmosphere.\ud \ud We begin with an introduction to sonic boom modelling and outline the current state of research.
openaire   +1 more source

A summary of XB-70 sonic boom signature data [PDF]

A compilation is provided of measured sonic boom signature data derived from 39 supersonic flights (43 passes) of the XB-70 airplane over the Mach number range of 1.11 to 2.92 and an altitude range of 30500 to 70300 ft.
Keefer, Thomas N., Jr., Maglieri, Domenic J., Sothcott, Victor E.   +2 more
core   +1 more source

Evolutionary Analysis of Transcriptional Regulation Mediated by Cdx2 in Rodents

Cell Proliferation, EarlyView.
Our study (1) represented a first systematic analysis of species‐specific adaptation in the DNA binding pattern of transcription factor; (2) represented a first study of cis‐regulation between two reproductively isolated species by using a novel allodiploid system; (3) demonstrated a higher conservation of transcriptional output than that of DNA ...
Weizheng Liang, Guipeng Li, Yukai Wang, Wencheng Wei, Rui Chen, Siyue Sun, Diwen Gan, Hongyang Yi, Bernhard Schaefke, Yuhui Hu, Qi Zhou, Wei Li, Huanhuan Cui, Wei Chen   +13 more
wiley   +1 more source

Sonic Boom Carpet Computation as a Basis for Supersonic Flight Routing

AIAA Aviation 2019 Forum, 2019
HE sonic boom caused by airplanes in supersonic flight is a phenomenon that has been known for a long time. NASA has started researching the sonic boom more than sixty years ago [1], yielding a vast amount of knowledge, data, theories, and methodologies ...
B. Liebhardt
semanticscholar   +1 more source

OSA Initiates Histone Lactylation That Drives PDE4B/FUS/AGT Axis to Pulmonary Hypertension

Cell Proliferation, EarlyView.
This study illustrates how chronic intermittent hypoxia (CIH) in obstructive sleep apnea (OSA) leads to hypertension via increased oxidative stress and mitochondrial dysfunction in pulmonary artery smooth muscle cells (PASMCs), causing glycolytic dysregulation. Lactate accumulation enhances histone lactylation, upregulating phosphodiesterase 4B (PDE4B),
Li Yang, Qing Ni, Yan He, Shijie Liu, Lulu Gan, Anni Dai, Yang Hu, Qian Liu, Xueling Yang, Jiqian Li, Yi Tao, Yunyu Li, Mingyue Xu   +12 more
wiley   +1 more source

Impact of reduced sonic boom exposure on psychophysical and cognitive performance for simulated booms presented in a realistic indoor environment

Acta Acustica
This study aimed to quantify, in situations representative of the daily life of European citizens, the effects of sonic boom exposure on human responses, in the case of a new generation of supersonic commercial aircraft that should emit a reduced ...
Marmel Frédéric, Cretagne Léo, Thuong Linh-Thao, Coulouvrat François, Fritz Claudia   +4 more
doaj   +1 more source

Sonic Boom [PDF]

A status of the knowledge of sonic booms is provided, with emphasis on their generation, propagation and prediction. For completeness, however, material related to the potential for sonic boom alleviation and the response to sonic booms is also included.
Maglieri, Domenic J., Plotkin, Kenneth J.   +1 more
core   +1 more source