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Why do Champagne bubbles rise the way they do? Scientists’ new discovery is worthy of a toast（图）
流体力学 表面活性剂 气泡流
2023/6/26
Fluid mechanics researchers from Brown University and the University of Toulouse found that surfactants give the celebratory drink its stable and signature straight rise of bubbles.
A NEW MEAN VELOCITY SCALING FOR TURBULENT BOUNDARY LAYERS
TURBULENT BOUNDARY LAYERS MEAN VELOCITY SCALING
2014/12/30
A new scaling, originally developed for the mean velocity
profile of turbulent pipe flow, was extended to the case of zero
pressure gradient turbulent boundary layers. At low Reynolds
numbers, the ...
New material structures bend like microscopic hair（图）
microscopic hair New material structures
2014/8/19
MIT engineers have fabricated a new elastic material coated with microscopic, hairlike structures that tilt in response to a magnetic field. Depending on the field’s orientation, the microhairs can ti...
Researchers from North Carolina State University have developed a new processing technique that makes light emitting diodes (LEDs) brighter and more resilient by coating the semiconductor material gal...
Investigation on a new method of adaptive drag reduction and nonablation thermal protection system for hypersonic vehicles
hypersonic drag reduction heat flux jet aerospike numerical simulation
2013/9/2
A new adaptive drag reduction and nonablation thermal protection method named Telescopic Selfaligning JetSpike (TSAJS) is proposed to improve the conventional spiked method employed in hypersonic v...
On a new type of solitary surface waves in finite water depth
Solitary wave peaked crest progressive wave fully nonlinear
2012/4/24
In this paper, a new type of solitary surface waves in a finite water depth is found by analytically solving the fully nonlinear wave equations. Using a new type of base functions which decays exponen...
A new method of quality improvement for quadrilateral mesh based on small polygon reconnection
Mesh improvement Topological clean-up Quadrilateral mesh Small polygon reconnection
2012/2/24
In this paper, a new method of topological cleanup for quadrilateral mesh is presented. The method first selects a patch of mesh around an irregular node. It then seeks the best connection of the sele...
Error analysis and a new steering law design for spacecraft control system using SGCMGs
Single gimbal control moment gyros (SGCMGs) Attitude control Singularity analysis Steering law
2012/2/29
Based on the singular value decomposition theory, this paper analyzed the mechanism of escaping/avoiding singularity using generalized and weighted singularity-robust steering laws for a spacecraft th...
期刊信息
篇名
Response synchroniation:New progress in brain-visual information processing
语种
英文
撰写或编译
作者
赵松年
第一作者单位
刊物名称
Chinese Science Bulletin
页面
1999，44（16）：1447～1457
出版日期
1999年
月
日
文章标识(ISSN)
相关项目
大气湍流...
2 March 2007，The dynamics that govern a hurricane's path and intensity are incredibly complex, and one of the least understood is eyewall replacement. In this process the wind speed drops initially wh...
Particle swarm method as a new tool for structural optimization
particle swarm method structural optimization
2010/3/12
A new and promising optimization technique is introduced: the particle swarm optimization (PSO). In this evolutionary technique the social behavior of birds is imitated. The technique is modified in o...
New RBF collocation methods and kernel RBF with applications
New RBF collocation methods kernel RBF applications
2010/10/22
A few novel radial basis function (RBF) discretization schemes for partial differential equations are developed in this study. For boundary-type methods, we derive the indirect and direct symmetric bo...