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Normalized edge detection, and the horizontal extent and depth of geophysical anomalies 被引量:2
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作者 李丽丽 韩立国 黄大年 《Applied Geophysics》 SCIE CSCD 2014年第2期149-157,252,253,共11页
Edge detection is an image processing technique for finding the boundaries of objects within images. It is typically used to interpret gravity and magnetic data, and find the horizontal boundaries of geological bodies... Edge detection is an image processing technique for finding the boundaries of objects within images. It is typically used to interpret gravity and magnetic data, and find the horizontal boundaries of geological bodies. Large deviations between model and true edges are common because of the interference of depth and errors in computing the derivatives; thus, edge detection methods cannot provide information about the depth of the source. To simultaneously obtain the horizontal extent and depth of geophysical anomalies, we use normalized edge detection filters, which normalize the edge detection function at different depths, and the maxima that correspond to the location of the source. The errors between model and actual edges are minimized as the depth of the source decreases and the normalized edge detection method recognizes the extent of the source based on the maxima, allowing for reliable model results. We demonstrate the applicability of the normalized edge detection filters in defining the horizontal extent and depth using synthetic and actual aeromagnetic data. 展开更多
关键词 geophysical anomalies normalized edge detection normalized total horizontal derivative regularization tilt angle theta map
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Iterative regularization method for image denoising with adaptive scale parameter
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作者 李文书 骆建华 +2 位作者 刘且根 何芳芳 魏秀金 《Journal of Southeast University(English Edition)》 EI CAS 2010年第3期453-456,共4页
In order to decrease the sensitivity of the constant scale parameter, adaptively optimize the scale parameter in the iteration regularization model (IRM) and attain a desirable level of applicability for image denoi... In order to decrease the sensitivity of the constant scale parameter, adaptively optimize the scale parameter in the iteration regularization model (IRM) and attain a desirable level of applicability for image denoising, a novel IRM with the adaptive scale parameter is proposed. First, the classic regularization item is modified and the equation of the adaptive scale parameter is deduced. Then, the initial value of the varying scale parameter is obtained by the trend of the number of iterations and the scale parameter sequence vectors. Finally, the novel iterative regularization method is used for image denoising. Numerical experiments show that compared with the IRM with the constant scale parameter, the proposed method with the varying scale parameter can not only reduce the number of iterations when the scale parameter becomes smaller, but also efficiently remove noise when the scale parameter becomes bigger and well preserve the details of images. 展开更多
关键词 iterative regularization model (IRM) total variation varying scale parameter image denoising
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论教育法典的编纂:必要性、可行性与编纂进路 被引量:7
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作者 王青斌 翁明杰 《湖湘法学评论》 2022年第3期68-79,共12页
《民法典》的成功编纂标志着我国正式进入法典化时代。从国家教育治理现代化的实现路径、教育法法典化的任务内容和现有法律规范体系来看,教育法典的编纂具有现实必要性。经过近四十年发展而来的丰富教育法学理论、相对完备的教育法律... 《民法典》的成功编纂标志着我国正式进入法典化时代。从国家教育治理现代化的实现路径、教育法法典化的任务内容和现有法律规范体系来看,教育法典的编纂具有现实必要性。经过近四十年发展而来的丰富教育法学理论、相对完备的教育法律法规体系、域外教育法典编纂的实践经验和我国民法典等部门法典编纂的实践经验,均为我国教育法典的编纂提供理论经验供给和实践经验供给,保证教育法典编纂的可行性。在教育法典的编纂过程中,我国应当通过制度的安排、条文的设计等凸显教育法典的时代特征。从教育法典的编纂进路来看,我国教育法典的编纂应采用“两步走”的编纂进路,并运用“提取公因式”的立法思维建立起“总则+分则”的体例结构。教育法典的内容设计,应当分为总则内容设计和分则内容设计。法典编纂者应通过立法目的的明确、基本原则的确立和基本范畴的划定来设计教育法典总则的内容,通过吸收现有教育法律法规内容和理清教育法律法规内在逻辑的路径来设计教育法典分则的内容。 展开更多
关键词 教育法典编纂 教育治理现代化 编纂进路 “总则+分则” 内容设计
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Reanalyzing Pentaquark Θ^+(1540) in Framework of QCD Sum Rules Approach with Direct Instantons
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作者 WANG Zhi-Gang YANG Wei-Min WAN Shao-Long 《Communications in Theoretical Physics》 SCIE CAS CSCD 2006年第2期320-324,共5页
In this article, we study the pentaquark state Θ+(1540) with a (scalar) diquark-(pseudoscalar) diquarkantiquark type interpolating current in the framework of the QCD sum rules approach by including the contri... In this article, we study the pentaquark state Θ+(1540) with a (scalar) diquark-(pseudoscalar) diquarkantiquark type interpolating current in the framework of the QCD sum rules approach by including the contributions from the direct instantons. The numerical results indicate that the contributions from the direct instantons are very small and can be safely neglected. 展开更多
关键词 QCD sum rules INSTANTON pentaquark state
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Seismic high-resolution processing method based on spectral simulation and total variation regularization constraints
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作者 Guo Xin Gao Jian-Hu +3 位作者 Yin Xun-De Yong Xue-Shan Wang Hong-Qiu Li Sheng-Jun 《Applied Geophysics》 SCIE CSCD 2022年第1期81-90,145,共11页
There is little low-and-high frequency information on seismic data in seismic exploration,resulting in narrower bandwidth and lower seismic resolution.It considerably restricts the prediction accuracy of thin reservoi... There is little low-and-high frequency information on seismic data in seismic exploration,resulting in narrower bandwidth and lower seismic resolution.It considerably restricts the prediction accuracy of thin reservoirs and thin interbeds.This study proposes a novel method to constrain improving seismic resolution in the time and frequency domain.The expected wavelet spectrum is used in the frequency domain to broaden the seismic spectrum range and increase the octave.In the time domain,the Frobenius vector regularization of the Hessian matrix is used to constrain the horizontal continuity of the seismic data.It eff ectively protects the signal-to-noise ratio of seismic data while the longitudinal seismic resolution is improved.This method is applied to actual post-stack seismic data and pre-stack gathers dividedly.Without abolishing the phase characteristics of the original seismic data,the time resolution is signifi cantly improved,and the structural features are clearer.Compared with the traditional spectral simulation and deconvolution methods,the frequency distribution is more reasonable,and seismic data has higher resolution. 展开更多
关键词 high-resolution seismic processing total variation regularization spectral simulation Hessian matrix
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Analysis and comparison of business income tax treatment of enterprise merger
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作者 Yang QianRu 《International Journal of Technology Management》 2015年第5期121-123,共3页
In this paper, combined with the "Enterprise Accounting Standards No. eighteenth issued -- income tax" and "Enterprise Accounting Standards No. twentieth" -- the merger of enterprises and the State Administration ... In this paper, combined with the "Enterprise Accounting Standards No. eighteenth issued -- income tax" and "Enterprise Accounting Standards No. twentieth" -- the merger of enterprises and the State Administration of Taxation on enterprise merger business related income tax provisions of the problem of enterprise income tax, from the perspective that enterprise merger accounting is divided into the same control and the different control corresponds to the general tax treatment and special tax treatment, I compare the process of enterprises under different circumstances of income tax with an example. 展开更多
关键词 Enterprise merger Same control Different control Taxable merger Tax-free merger
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论中国环境法典框架体系的构建和创新——以中国民法典框架体系为鉴 被引量:96
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作者 汪劲 《当代法学》 CSSCI 北大核心 2021年第6期18-30,共13页
中国民法典的编纂成功取决于民法完备的民事单行法体系、潘德克顿体系的方法论和民法的私法属性等因素。构建中国环境法典框架体系一方面需要借鉴民法典框架体系创新的理论和结构模式,另一方面还应当考虑构建环境法典框架体系所面临的... 中国民法典的编纂成功取决于民法完备的民事单行法体系、潘德克顿体系的方法论和民法的私法属性等因素。构建中国环境法典框架体系一方面需要借鉴民法典框架体系创新的理论和结构模式,另一方面还应当考虑构建环境法典框架体系所面临的环境法体系的广义性、环境法法源的广泛性、环境法律关系的多重牵连性和环境法律责任制度的复合性等中国环境法体系的基本特征和存在的固有问题。编纂中国环境法典应当采用"总则-分则"结构作为法典框架构造的基础,明确将适度法典化、提取公因式和衔接单行法律适用规则作为环境法典框架体系的构建原则和方法,将中国环境法典框架体系的构建和创新定位于总则编、污染防治编、自然保护编、绿色低碳发展编和生态环境责任编等五个方面。 展开更多
关键词 环境法典框架体系 “总则-分则”结构 污染防治 自然保护 绿色低碳发展 构建创新
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武器装备研制生产标准化工作规定
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《船舶标准化与质量》 2004年第2期4-6,共3页
国防科工委于二00四年二月十九日以科工法[2004]176号文印发了《武器装备研制生产标准化工作规定》,现刊登如下,请各单位遵照执行。二00四年二月十九日) 第一章总则第一条为规范武器装备型号(以下简称型号)研制、生产的标准化工作,制定... 国防科工委于二00四年二月十九日以科工法[2004]176号文印发了《武器装备研制生产标准化工作规定》,现刊登如下,请各单位遵照执行。二00四年二月十九日) 第一章总则第一条为规范武器装备型号(以下简称型号)研制、生产的标准化工作,制定本规定心第二条型号标准化工作是型号研制、生产的组成部分,贯穿于研制、生产全过程,型号的研制和生产必须开展标准化工作。 展开更多
关键词 中国 《武器装备研制生产标准化工作规定》 “总则” “组织与职责” “研制生产各阶段的标准化工作” “型号标准化文件体系” “标准的实施与监督” “附则”
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From the General Provisions of Civil Law to the General Rules of Civil Law:A Historic Leap
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作者 Yang Lixin 《Social Sciences in China》 2020年第2期5-25,共21页
The General Provisions of Civil Law(民法通则),formulated in the early days of reform and opening up,was a special law that set out the basic principles or rules of civil law,defining civil subjects,civil legal acts an... The General Provisions of Civil Law(民法通则),formulated in the early days of reform and opening up,was a special law that set out the basic principles or rules of civil law,defining civil subjects,civil legal acts and the agency system,declaring the civil rights enjoyed by civil subjects,establishing a relatively complete system of civil liability system,and so on.It kindled awareness of civil rights among the mass of the population,ensured China’s rapid economic and social development,and laid down a basic framework and content for the civil code,so holds an important position in contemporary Chinese history.But with the development of the economy and society,civil law has had to change with the times.Civil law jurisprudence injects theoretical support into contemporary civil law legislation,and the blueprint for law based governance provides a powerful impetus to the historic leap forward of contemporary Chinese civil law,providing the necessary conditions for the codification of civil law.The completion of the General Rules of Civil Law(民法总则)answers the requirements of the economic,humanist and legal character of the times,demonstrates the humanist stance and spirit of the civil code,rises to the challenge of modern scientific and technological development,and ensures people’s enjoyment and control of their new-style rights and their objective forms.This signifies that the GPCL has accomplished its historical task and civil law in contemporary China has realized a historic leap forward,laying a foundation for the compilation of the Chinese civil code,including the specific provisions of the framework and the contents of its individual parts. 展开更多
关键词 General Rules of Civil Law General Provisions of Civil Law contemporary Chinese civil law HUMANIST
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