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Physicists bring human-scale object to near standstill, reaching a quantum state(图)
量子态 引力 原子尺度
2023/6/19
University of Utah mathematicians propose a theoretical framework to understand how waves and other disturbances move through materials in conditions that vary in both space and time. The theory, call...
EFFECTS ON THE MEASUREMENTS OF THE TERRESTRIAL LASER SCANNER HDS 6000 (LEICA) CAUSED BY DIFFERENT OBJECT MATERIALS
Terrestrial Laser Scanning Data Quality Geometric Analysis Radiometric Analysis Object Surface Buildings
2016/2/29
One of the main aspects of terrestrial laser scanning (TLS) is data quality. In the literature a lot of publications concerning this topic
can be found. Several authors included also different mater...
OBJECT-ORIENTED CHANGE DETECTION OF RIPARIAN ENVIRONMENTS FROM HIGH SPATIAL RESOLUTION MULTI-SPECTRAL IMAGES
Object-Oriented Change Detection Definiens Developer Rule Sets Riparian Zones
2015/11/16
The objectives of this research were to: (1) develop rule sets in Definiens Developer 7® for mapping and monitoring riparian zone
land-cover classes within two QuickBird images; and (2) compare...
3D Imaging of a Phase Object from a Single Sample Orientation Using an Optical Laser
3D Imaging Single Sample Orientation Optical Laser
2011/8/4
Abstract: We acquire coherent diffraction patterns of a microscale phase object at a single sample orientation by using an optical laser. The diffraction patterns are projected onto a spherical shell ...
A Ray-Tracing Algorithm for Spinning Compact Object Spacetimes with Arbitrary Quadrupole Moments. I. Quasi-Kerr Black Holes
black hole physics radiative transfer relativity
2010/12/21
We describe a new numerical algorithm for ray tracing in the external spacetimes of spinning compact objects characterized by arbitrary quadrupole moments. Such spacetimes describe non-Kerr vacuum sol...
Some peculiarities of motion of neutral and charged test particles in the field of a spherically symmetric charged object in General Relativity
Motions classification Mass potential Stability conditions
2010/12/20
We propose the method of investigation of radial motions for charged and neutral test particles in the Reissner-Nordstr¨om field by means of mass potential. In this context we analyze special features...
Physicists in California have observed true quantum behaviour in a macroscopic object big enough to be seen with the naked eye. This is the first time this feat has been achieved and it could shed lig...
EVALUATION OF ASTER SPECTRAL BANDS FOR AGRICULTURAL LAND COVER MAPPING USING PIXEL-BASED AND OBJECT-BASED CLASSIFICATION APPROACHES
Agriculture, Land cover Object Segmentation
2015/11/16
The ASTER sensor onboard NASA’s Earth observing satellite Terra is an optical remote sensor comprised of 14 spectral bands ranging
from the visible to thermal infrared region. With its multispectral...
Quantum Decoherence of Macroscopic
Object Induced by Inner Environments: an Exactly Solvable Model
quantum decoherence macroscopic object inner environments
2007/8/15
2007Vol.47No.2pp.229-234DOI:
Quantum Decoherence of Macroscopic
Object Induced by Inner Environments: an Exactly Solvable Model
ZHENG Li1,2 and ZHENG Tai-Yu3
1 College o...