Results 51 to 60 of about 558,955 (240)

Predicting fan noise propagation in aeroengine bypass ducts

, 2009
This thesis explores the prediction of rearwards fan noise propagation within the bypass duct and its radiation into the far feld. Two recently developed models: B-induct and GXMunt, are exploited in application to real engine bypass ducts and their ...
McAleer, Claire Roisin
core   +1 more source

Physics‐Aware Machine‐Learning‐Driven Inverse Design of Broadband Ultra‐Open Acoustic Metamaterials

Advanced Science, EarlyView.
A physics‐aware machine‐learning framework enables inverse design of ultra‐open acoustic silencers by decoupling spectral and radial design spaces. The approach rapidly identifies broadband, compact, and highly ventilated architectures, while revealing hidden linear design rules that link geometry, impedance matching, and acoustic performance.
Zhiwei Yang, Mengyu Li, Xiaohang Xie, Ao Chen, Thomas G. Bifano, Xin Zhang   +5 more
wiley   +1 more source

Analisis Propulsi Statik dari Electric Ducted Fan dengan Metode Eksperimental [PDF]

, 2022
Dalam pengujian ini, fungsi dari electric ducted fan diinvestigasi dengan metode eksperimental. Sebuah electric ducted fan dengan diameter rotor 80 mm digunakan untuk pembelajaran. Eksperimen menggunakan alat uji gaya dorong statik.
Sportyawan, Candra Wahyu, Dzulfikar, Muhammad, Priangkoso, Tabah, Setiawan, Joga Dharma   +3 more
core  

F7 Drives Gastric Cancer Metastasis Through Anoikis Resistance and Tumor Microenvironment Remodeling

Advanced Science, EarlyView.
ABSTRACT Coagulation factor VII (F7) has been implicated in tumor progression; however, its role in gastric cancer metastasis and immune evasion remains incompletely understood. In this study, we identified F7 as a clinically relevant driver of gastric cancer.
Lei Gao, Qinying Han, Yunpeng Wang, Xuemei Li, Bofang Wang, Baohong Gu, Weidong Li, Lin Xiang, Ying Zhang, Hao Chen   +9 more
wiley   +1 more source

Three-dimensional structure of tip vortex in a half-ducted propeller fan

Nihon Kikai Gakkai ronbunshu, 2014
The tip vortex has an important role on the aerodynamic performance and noise of half-ducted propeller fans. The present paper provides better understanding on the three-dimensional structure of the tip vortex in a half-ducted propeller fan, aiming at ...
Kazuya KUSANO, Masato FURUKAWA, Kazutoyo YAMADA   +2 more
doaj   +1 more source

Albi II – a new generation development [PDF]

MATEC Web of Conferences, 2019
The UL-39 Albi university's all-composite ultralight aircraft project, powered by a piston engine and ducted fan, continues at the Department of Aerospace Engineering at Faculty of Mechanical Engineering CTU in Prague and its partners ZALL JIHLAVAN ...
Theiner Robert, Brabec Jiří
doaj   +1 more source

Experimental comparison between a counter-rotating axial-flow fan and a conventional rotor-stator stage [PDF]

, 2013
Based on the requirement of energy consumption level and weight and dimension restriction, compact axial machines are highly demanded in many industrial fields.
BAKIR, Farid, RAVELET, Florent, WANG, Juan   +2 more
core  

The CXCL5/CXCR2 Axis Attenuates Ferroptosis in Intrahepatic Cholangiocarcinoma Through the Positive Feedback Loop Between PTGS2 Transcriptional Activation and Neutrophil Recruitment

Advanced Science, EarlyView.
The CXCL5/CXCR2 axis directly inhibits ferroptosis in ICC cells by activating the NF‐κB/PTGS2 pathway. Meanwhile, the CXCL5/CXCR2 axis recruits N2 TANs, and the activated PTGS2 promotes the secretion of TNF‐α from the recruited N2 TANs via the CCL2/CCL7/CCR2 pathway, thereby activating the NF‐κB/PTGS2 axis and forming a positive feedback loop, which ...
Chanqi Ye, Kefeng Lin, Shuyao Yang, Yan Zhang, Wenli Gao, Jiaqi Chen, Ying Dong, Rui Bai, Yang Tian, Minghao Wang, Zhijun Yuan, Yuxiao Ma, Yuqin He, Ruyin Chen, Wenguang Fu, Qi Jiang, Qiong Li, Jian Ruan   +17 more
wiley   +1 more source

An Optimized Freeze‐Dry Multimodal Workflow for Sequential Micro‐CT Imaging, Histology, and Molecular Profiling: A Use Case in Human Liver Fibrosis

Advanced Science, EarlyView.
Optimized freeze‐drying and eosin staining deliver artifact‐free micro‐CT images of liver tissue at near‐histological detail, then hand the same specimen back for sectioning, staining, and sequencing. Fibrotic volume distinguishes normal liver from cirrhosis, while preserved RNA reveals inflammatory gene upregulation—one biopsy, three dimensions, and a
Kristijan Skok, Laura Činč Ćurić, Jernej Vajda, Silvia Schauer, Martin Wagner, Rudolf Stauber, Carolin Lackner, Karl Kashofer, Markus Plass, Giovanny Rodriguez Blanco, Ian R. Wanless, Uroš Maver, Katrin Panzitt, Boštjan Vihar   +13 more
wiley   +1 more source

A measuring stand for a ducted fan aircraft propulsion unit

EPJ Web of Conferences, 2014
The UL-39 ultra-light aircraft which is being developed by the Department of Aerospace Engineering, Faculty of Mechanical Engineering, Czech Technical University in Prague, is equipped with an unconventional ducted fan propulsion unit.
Hlaváček David
doaj   +1 more source