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Bees' movements may lead to new swimming, flying robots（图）
Bees movements new swimming flying robots
2020/1/21
Walking on Caltech's campus, engineer Chris Roh happened to see a bee stuck in the water of Millikan Pond. Although it was a common sight, it led Roh and his colleague Mory Gharib to a discovery about...
Flying lab to investigate Southern Ocean's appetite for carbon
Flying lab Southern Ocean appetite for carbon
2016/1/8
A team of scientists supported by the National Science Foundation (NSF) will launch a series of research flights over the remote Southern Ocean this month to better understand just how much ...
How a flying bat sees space（图）
flying bat sees space
2015/11/12
Recordings from echolocating bat brains have for the first time given researchers a view into how mammals understand 3-D space.By training bats to fly around obstacles in a room, and sit patiently on ...
Boltzmann and the art of flying.
Evaluating the geometric shape of a flying paraglider
Paraglider close-range photogrammetry geometric shape data acquisition in flight
2014/7/30
This paper describes the photogrammetric approach to find the geometric shape of a paraglider. As its geometry is only available during the flight this had to be done under special conditions. The lay...
An optical diode made from a 'flying' photonic crystal
optical diode 'flying' photonic crystal Optics
2012/4/19
Optical diodes controlling the flow of light are of principal significance for optical information processing 1. They transmit light from an input to an output, but not in reverse direction. This brea...
Flying randomly in $\mathbb{R}^d$ with Dirichlet displacements
Bessel functions Dirichlet distributions fractional Poisson process Mittag-Leer functions hyperspherical coordinates
2011/9/23
Abstract: Random flights in $\mathbb{R}^d,d\geq 2,$ with Dirichlet-distributed displacements and uniformly distributed orientation are analyzed. The explicit characteristic functions of the position $...
Flying across Galaxy Clusters with Google Earth: additional imagery from SDSS co-added data
Flying across Galaxy Clusters Google Earth SDSS co-added data
2011/1/13
Galaxy clusters are spectacular. We provide a Google Earth compatible imagery for the deep co-added images from the Sloan Digital Sky Survey and make it a tool for examing galaxy clusters. More detail...
Three cell flying capacitor inverter for dielectric barrier discharge plasma applications
DC-AC power converters multilevel inverters electric discharges plasma
2010/7/5
It is reported the design, construction and initial tests of a three cell flying capacitor inverter (TCFCI) in a half-bridge configuration. The device operates at a 200 kHz frequency which leads to a ...
期刊信息
篇名
Self-adaptive optical systems for long-distance flying optics
语种
英文
撰写或编译
撰写
作者
Zhaogu Cheng,Zhiping Zhang,and Jianqiang Zhu
第一作者单位
Shanghai Institute of Optics and Fine Mechanics, Chinese
刊物名...
November 3, 2006，Those who cannot afford the million-dollar price tag attached to space tourism will be happy to learn that at least their names--and their logos--will be able to travel into space for...