Results 101 to 110 of about 27,872 (309)

Aerodynamic Analysis of Rigid Wing Sail Based on CFD Simulation for the Design of High-Performance Unmanned Sailboats

Mathematics
The utilization of unmanned sailboats as a burgeoning instrument for ocean exploration and monitoring is steadily rising. In this study, a dual sail configuration is put forth to augment the sailboats’ proficiency in its wind-catching ability and adapt ...
Shipeng Fang, Cunwei Tian, Yuqi Zhang, Changbin Xu, Tianci Ding, Huimin Wang, Tao Xia   +6 more
doaj   +1 more source

Measuring method of drag coefficient, lift coefficient and equivalent roughness of revetment block

PROCEEDINGS OF HYDRAULIC ENGINEERING, 2000
This study examines measuring methods of drag coefficient, lift coefficient and equivalent roughness that are necessary for mechanical design of revetment blocks set on river banks. The setting method of blocks and the influence of the Reynolds number on drag force and lift force are examined by checking the experimental results.
YAMAMOTO, Kouichi, HAYASI, Kenjirou, SENKINE, Masato, FUJITA, Kouichi, TAMURA, Masahide, NISIMURA, Susumu, HAMAGUCHI, Kenichirou   +6 more
openaire   +2 more sources

Systemic dysregulation of apolipoproteins in amyotrophic lateral sclerosis serum

FEBS Open Bio, EarlyView.
Amyotrophic lateral sclerosis (ALS) is a fatal disease that damages motor neurons. This study found that people with ALS show significant changes in blood fats and the proteins that carry them. Several apolipoproteins were higher, lipid balances were altered, and normal protein–lipid relationships were disrupted.
Finula I. Isik, Russell Pickford, Hannah C. Timmins, Olivier Piguet, Glenda M. Halliday, Matthew C. Kiernan, Woojin Scott Kim   +6 more
wiley   +1 more source

Effect of Gurney Flap Geometry on a S809 Airfoil

International Journal of Aerospace Engineering, 2019
In this paper, the effect of Gurney flap shapes on wind turbine blade airfoil S809 has been studied by numerical simulation. First, the O-type grid is used in the numerical simulation. By comparing with experimental data, such as the lift force, the drag
Li-Shu Hao, Yong-Wei Gao
doaj   +1 more source

Large‐scale bidirectional arrayed genetic screens identify OXR1 and EMC4 as modifiers of αSynuclein aggregation

FEBS Open Bio, EarlyView.
Activation of the mitochondrial protein OXR1 increases pSyn129 αSynuclein aggregation by lowering ATP levels and altering mitochondrial membrane potential, particularly in response to MSA‐derived fibrils. In contrast, ablation of the ER protein EMC4 enhances autophagic flux and lysosomal clearance, broadly reducing α‐synuclein aggregates.
Sandesh Neupane, Lea Nikolić, Lorenzo Maraio, Thomas Goiran, Nathan Karpilovsky, Stefano Sellitto, Vangelis Bouris, Jiang‐An Yin, Ronald Melki, Edward A Fon, Adriano Aguzzi, Elena De Cecco   +11 more
wiley   +1 more source

Techniques to Maximize the Lift Coefficient and Maximum Lift Coefficient

This two-page review synthesizes and evaluates practical and advanced aerodynamic methods for maximizing an aircraft wing's maximum lift coefficient (CL, max ). The focus is on applications requiring ultra-high lift, such as Short Takeoff and Landing (STOL), Vertical Takeoff and Landing (VTOL), and low-speed heavy-lift operations.
openaire   +2 more sources

LIFT AND DRAG COEFFICIENTS FOR DIFFERENT MAGNUS ROTOR TYPES

Journal of Energy Technology
In this paper, the results of numerical simulations for various Magnus rotor configurations are presented. For each configuration, a blocked structured mesh was designed in ICEM CFD. Numerical simulations were conducted using Ansys CFX. The influence of the aspect ratio on the lift and drag coefficients depending on the speed ratio was investigated, as
openaire   +2 more sources

Aquaporin‐3 and aquaporin‐5 impact the development of pancreatic ductal adenocarcinoma spheroids

FEBS Open Bio, EarlyView.
Schematic representation of the role of aquaporin‐3 (AQP3) and aquaporin‐5 (AQP5) in pancreatic ductal adenocarcinoma (PDAC). Both proteins are upregulated in PDAC and are associated with tumor progression and metastatic potential. Silencing AQP3 or AQP5 in PDAC spheroids results in decreased diameter, area, and overall growth, underscoring their key ...
Catarina Pimpão, Diogo M. Engrácia, Graça Soveral, Filipa Mendes   +3 more
wiley   +1 more source

Aerodynamic circulation control for flapless flight control of an unmanned air vehicle [PDF]

, 2009
The supporting Flight Dynamics research contribution to the design of Demon, a flapless UAV demonstrator which is the subject of the national research programme FLAVIIR, is described in this thesis. In particular, an integrated flight control and fluidic
Buonanno, Annalisa
core  

A study on aerodynamic characteristics and visualization of flow field of lift-drag combined starter

Advances in Mechanical Engineering, 2019
This study refers to the modification of the aerodynamic characteristics of the starter for the lift-type vertical axis wind turbine, the structure of the traditional drag starter was improved, and the lift-drag combined starter model was proposed. Based
Fang Feng, Yan Li, Yuedi Bai, Guoqiang Tong, Xiaoyu Dong   +4 more
doaj   +1 more source