Results 61 to 70 of about 121,945 (278)

Sand transverse dune aerodynamics: 3D Coherent Flow Structures from a computational study [PDF]

, 2015
The engineering interest about dune fields is dictated by the their interaction with a number of human infrastructures in arid environments. Sand dunes dynamics is dictated by wind and its ability to induce sand erosion, transport and deposition.
Bruno, Luca, Fransos, Davide
core   +2 more sources

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Data processing and uncertainty evaluation method for five-hole probe considering compressibility [PDF]

AIP Advances
The data processing and uncertainty evaluation method of the five-hole probe, considering compressibility, is studied to meet the application requirements of the five-hole probe in a high-speed wind tunnel.
Yufeng Du, Lulu Wang, Qiuting Guo, Jilong Zhu, Neng Xiong   +4 more
doaj   +1 more source

An experimental investigation of the aerodynamics and cooling of a horizontally-opposed air-cooled aircraft engine installation [PDF]

A flight-test based research program was performed to investigate the aerodynamics and cooling of a horizontally-opposed engine installation. Specific areas investigated were the internal aerodynamics and cooling mechanics of the installation, inlet ...
Cross, E. J., Jr., Lawrence, D. L., Miley, S. J., Owens, J. K.   +3 more
core   +1 more source

Influence of blade aerodynamic model on the prediction of helicopter high-frequency airloads [PDF]

, 2011
Brown’s vorticity transport model has been used to investigate the influence of the blade aerodynamic model on the accuracy with which the high-frequency airloads associated with helicopter blade–vortex interactions can be predicted.
Benoît B., Boyd D. D., Duraisamy K., Hopkins A. S., Johnson W., Kelly M. E., Küssner H. G., Leishman J. G., Lim J. W., Lim J. W., Mary E. Kelly, Pengel K., Richard E. Brown, Schneider O., Thom A., Toro E. F., van der Wall B. G., Whitehouse G., Yu Y. H.   +18 more
core   +1 more source

GDNF‐RET signaling drives pulmonary neuroendocrine cell hyperplasia and allergic airway inflammation

FEBS Letters, EarlyView.
A neuroimmune interaction centered on the PNEC‐ILC2 axis in an asthma model. PNEC‐derived CGRP activates nearby ILC2s, which then release cytokines, including IL‐5 and IL‐13. These cytokines promote eosinophil and macrophage infiltration. Subsequently, GDNF produced by these cells induces PNEC hyperplasia via the GDNF receptors, RET and GFRα1 ...
Tasuku Kawano, Erina Ike, Suguru Okada, Tomoko Takahashi   +3 more
wiley   +1 more source

Computational aerodynamics and artificial intelligence [PDF]

The general principles of artificial intelligence are reviewed and speculations are made concerning how knowledge based systems can accelerate the process of acquiring new knowledge in aerodynamics, how computational fluid dynamics may use expert systems,
Kutler, P., Mehta, U. B.
core   +1 more source

The neural crest‐associated gene ERRFI1 is involved in melanoma progression and resistance toward targeted therapy

Molecular Oncology, EarlyView.
ERRFI1, a neural crest (NC)‐associated gene, was upregulated in melanoma and negatively correlated with the expression of melanocytic differentiation markers and the susceptibility of melanoma cells toward BRAF inhibitors (BRAFi). Knocking down ERRFI1 significantly increased the sensitivity of melanoma cells to BRAFi.
Nina Wang, Qian Sun, Daniel Novak, Lei Zhu, Juliane Poelchen, Tamara Steinfass, Yiman Wang, Viktor Umansky, Jochen Utikal   +8 more
wiley   +1 more source

Key technologies for future combat of intelligent variant aircraft

Hangkong gongcheng jinzhan
Intelligent variant aircraft is one of the important development directions of advanced aircraft in the future, and it is also an innovative research frontier in the aerospace field.
CAO Xin, LI Congjian, GAO Chuan, WEI Zhenglei, WANG Lulu, MA Xiaoyong   +5 more
doaj   +1 more source

Role of computational fluid dynamics in unsteady aerodynamics for aeroelasticity [PDF]

In the last two decades there have been extensive developments in computational unsteady transonic aerodynamics. Such developments are essential since the transonic regime plays an important role in the design of modern aircraft.
Goorjian, Peter M., Guruswamy, Guru P.
core   +1 more source