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李金华等-GF：嫦娥五号月壤样品单颗粒分析工作流程图（图）
嫦娥五号 月壤样品 单颗粒分析
2023/1/16
导言：2020年12月17日，嫦娥五号从月球带回1731克月壤样品，中国科学家第一次拥有属于自己的地外天体返回样品，在我国行星科学发展史上具有里程碑意义。月壤样品极其珍贵，多数为亚毫米和微米大小的颗粒。如何利用有限的珍贵样品获得尽可能多的基础数据，同时开展高效高质量的科学研究，对我国科研人员提出了巨大挑战。作为首批获得月壤样品的科研单位，中国科学院地质与地球物理研究所联合中科院国家天文台、高能物理...
THE DETERMINATION METHOD OF EXTREME EARTHQUAKE DISASTER AREA BASED ON THE DUST DETECTION RESULT FROM GF-4 DATA
Earthquake Extreme Disaster Area Dust GF-4 Remote Sensing
2018/5/11
The remote sensing has played an important role in many earthquake emergencies by rapidly providing the building damage, road damage, landslide and other disaster information. The earthquake in the mo...
THE STUDY OF RESIDENTIAL AREAS EXTRACTION BASED ON GF-3 TEXTURE IMAGE SEGMENTATION
Residential Areas Extraction GF-3, Backscattering Coefficient Image Filtering Texture Feature, Image Segmentation
2018/5/15
The study chooses the standard stripe and dual polarization SAR images of GF-3 as the basic data. Residential areas extraction processes and methods based upon GF-3 images texture segmentation are com...
Binomial coefficient codes over GF
Graham, binomial coefficient coding, discrete mathematics, number of codewords, industry convergence rate
2015/7/14
Diaconis, P. and R. Graham, Binomial coefficient codes over GF(2) Discrete Mathematics
106/107 (1992) 181-188.
In this note we study codes over GF(2) which are generated for given d and r by binar...
Efficiently Testing Sparse GF(2) Polynomials
Property testing GF(2) polynomials Sparse polynomials Randomized algorithms
2012/12/3
We give the first algorithm that is both query-efficient and time-efficient for testing whether an unknown function f : {0, 1}n → {−1, 1} is an s-sparse
GF(2) polynomial versus -far from every...
Gauss Sums of the Cubic Character over $GF(2^m)$: an elementary derivation
Gauss sum character binary finite fields
2011/2/25
An elementary approach is shown which derives the value of the Gauss sum of a cubic char-
acter over a finite field F2s without using Davenport-Hasse’s theorem (namely, if s is odd the
Gauss sum is ...
Typical rank of coin-toss power-law random matrices over GF(2)
Typical coin-toss power-law
2010/11/18
Random linear systems over the Galois Field modulo 2 have an interest in connection with problems ranging from computational op-timization to complex networks.
应用ICP-MS、AFS、GF-AAS测定食品中As、Cd、Hg、Pb方法的对比研究
电感耦合等离子体质谱(ICP-MS) 原子荧光(AFS) 石墨炉-原子吸收(GF-AAS) 食品 As Cd Hg Pb 方法对比
2009/10/20
应用ICP-MS法测定食品中的As、Cd、Hg、Pb，AFS法测定As、Hg，GFAAS法测定Cd、Pb，并对3种测定方法进行对比研究。采用微波消解法作为ICPMS法的样品前处理方法，湿式消解法作为AFS、GF-AAS法的前处理方法。通过优化消解条件，优化ICP-MS、AFS及GFAAS仪器测定工作条件，选择适宜内标元素、EPA200.8标准干扰校正方程、硫脲-抗坏血酸掩蔽剂、硝酸镁-硝酸钯...
一般有限域GF(pm)上线性码的自同构群
线性码 单式阵群 自同构群 广义逆
2012/11/14
对单式阵群作一个较详细的研究,并将GF(2m)上线性码的自同构群的一些结论推广到最一般的有限域GF(pm)上去,这里的p是任意的素数.