搜索结果: 1-15 共查到“理学 Objects”相关记录93条 . 查询时间(0.046 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Tracing the Evolution of SMBHs and Stellar Objects in Galaxy Mergers: A Multi-mass Direct N-body Model
星系合并 SMBH 恒星物体演化 多质量 直接N体模型
2023/11/13
By using direct N-body numerical simulations, we model the dynamical coevolution of two supermassive black holes (SMBHs) and the surrounding stars in merging galaxies. In order to investigate how diff...
Using Powerful New Telescope,Astronomers Confirm Observing One of the Oldest Objects in the Universe（图）
Powerful New Telescope Astronomers Observing One of the Oldest Objects the Universe
2017/11/23
Astronomers using the Large Millimeter Telescope (LMT), which is operated jointly by the University of Massachusetts Amherst and Mexico’s Instituto Nacional de Astrofísica, óptica y Electrónica, repor...
DETECTION AND TRACKING OF MOVING OBJECTS WITH REAL-TIME ONBOARD VISION SYSTEM
Detection Tracking Background estimation Motion object Geometrical transform estimation
2017/6/19
Detection of moving objects in video sequence received from moving video sensor is a one of the most important problem in computer vision. The main purpose of this work is developing set of algorithms...
GEOSPATIAL DATABASE FOR STRATA OBJECTS BASED ON LAND ADMINISTRATION DOMAIN MODEL (LADM)
LADM geospatial database strata objects
2016/10/14
Recently in our country, the construction of buildings become more complex and it seems that strata objects database becomes more important in registering the real world as people now own and use mult...
DESIGN OF 3D TOPOLOGICAL DATA STRUCTURE FOR 3D CADASTRE OBJECTS
3D topology data structure TEN 3D cadastre modelling
2016/10/14
This paper describes the design of 3D modelling and topological data structure for cadastre objects based on Land Administration Domain Model (LADM) specifications. Tetrahedral Network (TEN) is select...
Variable Incidence Angle Fluorescence Interference Contrast Microscopy for Z-Imaging Single Objects
Incidence Angle Fluorescence Microscopy Z-Imaging Single Objects
2016/5/24
Surface-generated structured illumination microscopies interrogate the position of fluorescently labeled objects near surfaces with nanometer resolution along the z axis. However, these techniques are...
Iowa State engineers develop flexible skin that traps radar waves,cloaks objects
Iowa State engineers flexible skin traps radar waves cloaks objects
2016/3/14
AMES, Iowa – Iowa State University engineers have developed a new flexible, stretchable and tunable “meta-skin” that uses rows of small, liquid-metal devices to cloak an object from th...
Rotational fission of trans-Neptunian objects:the case of Haumea
Kuiper belt general – Kuiper belt objects individual Haumea – minor planets, asteroids general
2015/12/25
We present several lines of evidence, based on different kinds of observations, and we conclude that it is likely that rotational fission has occurred for a fraction of the known trans-Neptunian objec...
Researchers at the University of California, Riverside have found parts produced by some commercial 3D printers are toxic to certain fish embryos. Their results have raised questions about how to disp...
A method for the detection of shallow buried objects
Acoustics seismic porous madia buried object
2015/9/29
Numerous geophysical techniques have successfully contributed to geotechnical engineering and environmental problems of the shallow subsurface. Geophysical surveys are used to: delineate geologic feat...
Near-Optimal Detection of Geometric Objects by Fast Multiscale Methods
Fast Multiscale Methods Geometric Objects
2015/8/21
We construct detectors for ‘geometric’ objects in noisy data. Examples include a detector
for presence of a line segment of unknown length, position, and orientation in two-dimensional
image data wi...
Curvelets { A Surprisingly E®ective Nonadaptive Representation For Objects with Edges
Nonadaptive Representation Edges
2015/8/21
. It is widely believed that to e±ciently represent an otherwise
smooth object with discontinuities along edges, one must use an adaptive
representation that in some sense `tracks' the shape of the ...
STRATEGY FOR THE EXTRACTION OF 3D ARCHITECTURAL OBJECTS FROM LASER AND IMAGE DATA ACQUIRED FROM THE SAME VIEWPOINT
Laser scanner image data terrestrial surveying 3D reconstruction semi-automation data fusion
2015/8/7
This paper presents a general strategy for 3D reconstruction of complex architectural scenes. This approach makes use of both laser
data (range and retro-diffusion) and image data, and of their great...
A Combined Automated Generalization Model of Spatial Active Objects
Generalization Cartography GIS Automation
2015/7/6
Automating the map generalization process has traditionally been a major focus of research in cartography and
GIS environment. Many algorithms and models have been developed over the past three decad...
Ultra-stable JILA Microscopy Technique Tracks Tiny Objects for Hours
Ultra-stable JILA Microscopy Technique Tracks Tiny Objects Hours
2015/7/13
JILA researchers have designed a microscope instrument so stable that it can accurately measure the 3D movement of individual molecules over many hours—hundreds of times longer than the current limit ...