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原单位原职务的“原”字如何正确使用
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作者 雷智勇 雷冰 《新闻知识》 北大核心 2011年第2期105-106,共2页
阅读报刊,发现在介绍人物、发布讣告等新闻报道中,常常涉及到介绍该人物曾经拥有过的头衔或职务。为了与现任职务的人们有所区别,编辑、作者常在其头衔前面加个“原”字。但笔者发现,这个“原”字所加的位置大不相同,需要予以规范。
关键词 “原”字 职务 单位 新闻报道 人物 头衔
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“原”字用法浅析 被引量:1
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作者 王书生 《秘书工作》 2010年第9期58-59,共2页
"原"字,在表述人们曾经担任过的职务时,经常用到。由于目前尚没有权威部门或权威工具书对其用法作出规范,加之人们对"职务"理解上的偏差和使用上的疏忽大意,致使用法不一的现象经常出现。例如:
关键词 用法 “原”字 疏忽大意 工具书 职务 权威
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代表与“原”选举单位、“原”选区关系考辨 被引量:2
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作者 苏东 《人大研究》 2016年第2期39-41,共3页
将选举产生人大代表的选举单位、选区称为“原”选举单位、“原”选区,不利于强化人大代表履职责任感。若使用“原”选举单位、“原”选区选民,显然在心理上让人大代表与选举产生他的选举单位、选区选民有隔离感。一个“原”字,生生... 将选举产生人大代表的选举单位、选区称为“原”选举单位、“原”选区,不利于强化人大代表履职责任感。若使用“原”选举单位、“原”选区选民,显然在心理上让人大代表与选举产生他的选举单位、选区选民有隔离感。一个“原”字,生生疏离了二者的关系,不利于强化人大代表“受委托人”角色或者说“代表”的角色。 展开更多
关键词 选举单位 选区 人大代表 考辨 “原”字 受委托人 责任感 履职
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由不知屈平是何人想到的——浅说中国人的姓、名、字、号
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作者 宋英广 《中学语文园地(高中版)》 2009年第3期46-48,共3页
大诗人屈原,在中国可谓是家喻户晓,妇孺皆知。屈原,这“原”字,本是他的字,而非名;“平”才是他的名。要问屈平是何人,恐怕相当多的中国人不知你问的是谁;如果说传统的端午节是纪念屈平的,可能大部分中国人会认为你说的不对。
关键词 中国人 “原”字 “平” 端午节
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A Compact Direct Digital Frequency Synthesizer for the Rubidium Atomic Frequency Standard 被引量:1
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作者 曹晓东 倪卫宁 +2 位作者 袁凌 郝志坤 石寅 《Journal of Semiconductors》 EI CAS CSCD 北大核心 2008年第9期1723-1728,共6页
A compact direct digital frequency synthesizer (DDFS) for system-on-chip implementation of the high precision rubidium atomic frequency standard is developed. For small chip size and low power consumption, the phase... A compact direct digital frequency synthesizer (DDFS) for system-on-chip implementation of the high precision rubidium atomic frequency standard is developed. For small chip size and low power consumption, the phase to sine mapping data is compressed using sine symmetry technique, sine-phase difference technique, quad line approximation technique,and quantization and error read only memory (QE-ROM) technique. The ROM size is reduced by 98% using these techniques. A compact DDFS chip with 32bit phase storage depth and a 10bit on-chip digital to analog converter has been successfully implemented using a standard 0.35μm CMOS process. The core area of the DDFS is 1.6mm^2. It consumes 167mW at 3.3V,and its spurious free dynamic range is 61dB. 展开更多
关键词 CMOS integrated circuit DDFS rubidium atomic frequency standard SOC
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Review of Digital Elevation Model (DEM) Based Research on China Loess Plateau 被引量:5
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作者 Tang Guo'an Ge Shanshan +1 位作者 Li Fayuan Zhou Jieyu 《Journal of Mountain Science》 SCIE CSCD 2005年第3期265-270,共6页
The Loess Plateau is one of the hot research areas for its specific geographical features. In resent years, with the establishment of national multi-scale DEMs and the perfection of DEM based digital terrain analysis ... The Loess Plateau is one of the hot research areas for its specific geographical features. In resent years, with the establishment of national multi-scale DEMs and the perfection of DEM based digital terrain analysis methods, new thoughts and methodologies have been constructed for the Loess Plateau research. This paper introduces the characteristics of DEM data, analyses the development stages of DEM applied in the Loess Plateau research, and discusses its further possible research direction. More discussions are focused on slope spectrum and its concept, as well as the significance in the Loess Plateau research. 展开更多
关键词 REVIEW DEM the Loess Plateau
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Extraction and Analysis of Gully Head of Loess Plateau in China Based on Digital Elevation Model 被引量:17
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作者 ZHU Hongchun TANG Guoan +1 位作者 QIAN Kejian LIU Haiying 《Chinese Geographical Science》 SCIE CSCD 2014年第3期328-338,共11页
In China′s Loess Plateau area, gully head is the most active zone of a drainage system in gully areas. The differentiation of loess gully head follows geospatial patterns and reflects the process of the loess landfor... In China′s Loess Plateau area, gully head is the most active zone of a drainage system in gully areas. The differentiation of loess gully head follows geospatial patterns and reflects the process of the loess landform development and evolution of its drainage system to some extent. In this study, the geomorphic meaning, basic characteristics, morphological structure and the basic types of loess gully heads were systematically analysed. Then, the loess gully head′s conceptual model was established, and an extraction method based on Digital Elevation Model(DEM) for loess gully head features and elements was proposed. Through analysing the achieved statistics of loess gully head features, loess gully heads have apparently similar and different characteristics depending on the different loess landforms where they are found. The loess head characteristics reflect their growth period and evolution tendency to a certain degree, and they indirectly represent evolutionary mechanisms. In addition, the loess gully developmental stages and the evolutionary processes can be deduced by using loess gully head characteristics. This study is of great significance for development and improvement of the theoretical system for describing loess gully landforms. 展开更多
关键词 Loess Plateau loess gully head Digital Elevation Model (DEM) loess landform evolution feature extraction STATISTICALANALYSIS
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Grassland Evolution Under Soil Degradation: Numerical Simulation and Test 被引量:9
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作者 QIXiang-Zhen LINZhen-Shan 《Pedosphere》 SCIE CAS CSCD 2005年第1期41-45,共5页
Both theoretical and field observations were examined to study the close relationship between soil degeneration and the evolution of grassland vegetation. A general n-species model of equal competition under different... Both theoretical and field observations were examined to study the close relationship between soil degeneration and the evolution of grassland vegetation. A general n-species model of equal competition under different degrees of soil degradation was applied to field data in order to probe the dynamic processes and mechanisms of vegetation evolution due to the effects of the soil's ecological deterioration on grassland vegetation. Comparisons were made between the theoretical results and the practical surveys with satisfactory results. 展开更多
关键词 grassland evolution numerical simulation soil degradation TEST
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Drainage Network and Lineament Analysis:An Approach for Potwar Plateau(Northern Pakistan) 被引量:2
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作者 Faisal SHAHZAD Syed Amer MAHMOOD Richard GLOAGUEN 《Journal of Mountain Science》 SCIE CSCD 2009年第1期14-24,共11页
Drainage responds rapidly to tectonic changes and thus it is a potential parameter for teetonogeomorphological analysis. Drainage network of Potwar is a good geological record of movement, displacements, regional upli... Drainage responds rapidly to tectonic changes and thus it is a potential parameter for teetonogeomorphological analysis. Drainage network of Potwar is a good geological record of movement, displacements, regional uplifts and erosion of the tectonic units. This study focuses on utilizing drainage network extracted from Shuttle Radar Digital Elevation Data (SRTM-DEM) in order to constrain the structure of the Potwar Plateau. SWAN syncline divides Potwar into northern Potwar deformed zone (NPDZ) and southern Potwar platform zone (SPPZ). We extracted the drainage network from DEM and analyzed 112 streams using stream power law. Spatial distribution of concavity and steepness indices were used to prepare uplift rate map for the area. DEM was further utilized to extract lineaments to study the mutual relationship between lineaments and drainage patterns. We compared the local correlation between the extracted lineaments and drainage network of the area that gives us quantitative information and shows promising prospects. The streams in the NPDZ indicate high steepness values as compared to the streams in the SPPZ. The spatial distribution of geomorphic parameters distinctive deformation and uplift rates suggest the among eastern, central and western parts. The local correlation between drainage network and lineaments from DEM is strongly positive in the area within I km of radius. 展开更多
关键词 Drainage network LINEAMENTS streamprofile analysis uplift rate local correlation
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Bunching and Antibunching in Cavity QED
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作者 H.Jabri H.Eleuch 《Communications in Theoretical Physics》 SCIE CAS CSCD 2011年第7期134-138,共5页
We study the statistics of the emitted filed from Rydberg atom confined inside a microcavity and interacting with a pump laser in the strong coupling regime. We explore the manifestation of the antibunching in connect... We study the statistics of the emitted filed from Rydberg atom confined inside a microcavity and interacting with a pump laser in the strong coupling regime. We explore the manifestation of the antibunching in connection with the internal system parameters. 展开更多
关键词 quantum fluctuations quantum noise photon statistics cavity quantum electrodynamics
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The Use of Data Mining Techniques in Rockburst Risk Assessment 被引量:7
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作者 Luis Ribeiro e Sousa Tiago Miranda +1 位作者 Rita Leal e Sousa Joaquim Tinoco 《Engineering》 SCIE EI 2017年第4期552-558,共7页
Rockburst is an important phenomenon that has affected many deep underground mines around the world. An understanding of this phenomenon is relevant to the management of such events, which can lead to saving both cost... Rockburst is an important phenomenon that has affected many deep underground mines around the world. An understanding of this phenomenon is relevant to the management of such events, which can lead to saving both costs and lives. Laboratory experiments are one way to obtain a deeper and better understanding of the mechanisms of rockburst. In a previous study by these authors, a database of rockburst laboratory tests was created; in addition, with the use of data mining (DM) techniques, models to predict rockburst maximum stress and rockburst risk indexes were developed. In this paper, we focus on the analysis of a database of in situ cases of rockburst in order to build influence diagrams, list the factors that interact in the occurrence of rockburst, and understand the relationships between these factors. The in situ rockburst database was further analyzed using different DM techniques ranging from artificial neural networks (ANNs) to naive Bayesian classifiers. The aim was to predict the type of rockburst-that is, the rockburst level-based on geologic and construction characteristics of the mine or tunnel. Conclusions are drawn at the end of the paper. 展开更多
关键词 Rockburst Data mining Bayesian networks In situ database
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Research on Crustal Flow and Its Dynamic Characteristics in Sichuan and Its Adjacent Area
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作者 Fan Jun Zhu Jieshou +2 位作者 Jiang Xiaotao Wu Peng Yang Yihai 《Earthquake Research in China》 CSCD 2016年第1期57-73,共17页
Using the broadband seismic data of the regional stations in the Sichuan Digital Seismic Network and the mobile seismic stations in this region,the receiver function inversion method was adopted to study the character... Using the broadband seismic data of the regional stations in the Sichuan Digital Seismic Network and the mobile seismic stations in this region,the receiver function inversion method was adopted to study the characteristics of crustal flow and dynamic effects in Sichuan and adjacent areas. The results show that: Velocity in the crust and upper mantle of the Sichuan basin is significantly higher than that beneath the eastern margin of the Qinghai-Tibetan plateau. The velocity v_S is from 3. 6 to 3. 8km / s in the crust and4. 5- 4. 8km / s in the upper mantle beneath the basin,and there is no low-velocity layer in the crust. The lithology shows a hard block. The v_S velocity in the eastern margin of the Qinghai-Tibetan plateau is lower,with average v_Sof 3. 0- 3. 4km / s in the mid crust and4. 0- 4. 5km / s in the upper mantle. Low-velocity layers are distributed widely in the crust,most of which are in the mid crust at a depth of 20km- 40 km,and there are also a few low-velocity layers appearing in the upper crust at depths of 10km- 20 km and the lower crust at depths of 40km- 60 km. Affected by the northward pushing of the Indian plate,the eastward movement of the eastern margin of the Qinghai-Tibetan plateau is blocked by the hard Sichuan basin,producing a southward and southeastward component.Such movement process is produced by the complicated forces acting in this area. Just under the action of these forces, the eastern margin of the Qinghai-Tibetan plateau becomes a region with complicated geology and intensive earthquake activity. Obstructed by the hard Sichuan basin,the low-velocity crustal flow is delaminated and split into two or three upward and downward tributaries. The upward flow intruded into the upper crust,causing uplift of the earths urface,forming mountain crests; the downward flow intruded into the lower crust and upper mantle,resulting in thickening of the crust and depression of the Moho. The crustal flow in the eastern margin of the Qinghai-Tibetan plateau is mainly distributed along the active faults. The crustal flow flows out from the Qiangtang block in the middle part of the eastern margin of the Qinghai-Tibetan plateau,the mainstream flows along the NW-SE trending Xianshuihe fault zone,then turns NS and flows to the south along the Anninghe and Xiaojiang faults. There is another crustal flow in the north of the study area,flowing in the NE and E-W directions to the Longmenshan faults. 展开更多
关键词 Sichuan and its adjacent area Receiver function Crustal flow Dynamiccharacteristics
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A Perturbing Scheme of Digital Chaos
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作者 刘镔 罗向阳 刘粉林 《Journal of Shanghai Jiaotong university(Science)》 EI 2006年第2期172-176,共5页
With finite computation precision, digital chaos will lose chaotic characteristic. An efficient perturbance-based algorithm perturbing chaos variable algorithm(PCV) was proposed, which can be regarded as a remedy to d... With finite computation precision, digital chaos will lose chaotic characteristic. An efficient perturbance-based algorithm perturbing chaos variable algorithm(PCV) was proposed, which can be regarded as a remedy to digital chaos. After being perturbed, digital chaos systems are able to generate pseudo random sequences with perfect statistical properties and can be used as key stream generators in cryptogram. 展开更多
关键词 CRYPTOGRAPHY CHAOS piecewise linear chaotic map pseudo random number generator
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Function Projective Synchronization of Discrete-Time Chaotic and Hyperchaotic Systems Using Backstepping Method
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作者 JIN Yi-Liang LI Kin CHEN Yong 《Communications in Theoretical Physics》 SCIE CAS CSCD 2008年第7期111-116,共6页
In this paper, a function projective synchronization scheme is developed to investigate the function projective synchronization between the discrete-time driven chaotic system and the discrete-time response chaotic sy... In this paper, a function projective synchronization scheme is developed to investigate the function projective synchronization between the discrete-time driven chaotic system and the discrete-time response chaotic system. With the aid of symbolic-numeric computation, we use the scheme to study the function projective synchronization between 2D Lorenz discrete-time system and Hdnon discrete-time system, as well as that between 3D discrete-time hyperchaotic system and Henon-like map via three scalar controllers, respectively. Moreover numerical simulations are used to verify the effectiveness of the proposed scheme. 展开更多
关键词 discrete-time chaotic system discrete-time chaotic map symbolic-numeric computation function projective synchronization backstepping design
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Digitalized Mirror Array and Its Application in Large Telescope:Principle and Case Studies
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作者 CHEN Ying-Tian ZHANG Yang +5 位作者 HU Sen Ho Tso-Hsiu Boon Ham Lim Chen Sin Lim Kok Keong Chong Boon Kok Tan 《Communications in Theoretical Physics》 SCIE CAS CSCD 2009年第10期750-760,共11页
In this article, we report the principle and conceptual design of a fundamentally different technology in fabricating high precision aberration free optical devices. The tip-tilt of facet in a mirror array is produced... In this article, we report the principle and conceptual design of a fundamentally different technology in fabricating high precision aberration free optical devices. The tip-tilt of facet in a mirror array is produced by digitally controlled line-tilts of rows and columns. It has not only provided a cost-effective designing methodology in optical physics but also led to a much finer precision of 1 mili arc sec or less. As examples of the application of the proposed digitalised optics, two case studies have been given: a 10 m Schmidt telescope (off-axis) and an 8 m Cassegrain telescope (on-axis). 展开更多
关键词 tip-tilting line-tilting Schmidt telescope aberration correction cassegrain telescope
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Photo Socialization in Digital Natives
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作者 Jacob Bafiuelos 《Journalism and Mass Communication》 2011年第3期226-234,共9页
In the following work of research, we shall present the results of a study on forms of digital photographic socialization as carried out by the so-called "digital natives" in order to explore their competence in man... In the following work of research, we shall present the results of a study on forms of digital photographic socialization as carried out by the so-called "digital natives" in order to explore their competence in managing digital photographic output and cultural practices. This shall be done under the following categories of analysis: snapshot, organization, socialization, reception, privacy, and copyrights in digital photography. The study explores the forms of digital photography production, technical problems of photographic management and the final uses that digital photographers give to their photos in terms of web tools 2.0, mobile telephones and social networks. Digital photography technology, compact cameras, mobile phones with cameras, specialized websites in photography and the lnternet generate new forms of production and emerging styles of digital photographic socialization. The study is carried out using a defined sample of university students, those digital natives who create and use digital photography. 展开更多
关键词 Digital photography SOCIALIZATION digital photographic competency cultural practices digital natives
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Towards a self healing information system for digital libraries
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作者 AMBATI Vamshi REDDY Raj 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2005年第11期1221-1228,共8页
An important area of focus in complex systems development is the capability to adapt to variable runtime environmental resources and to accommodate runtime system failures. The research in this area is broadly termed ... An important area of focus in complex systems development is the capability to adapt to variable runtime environmental resources and to accommodate runtime system failures. The research in this area is broadly termed as “Self Healing” and has recently aroused increasing attention to complex systems. Digital libraries have gained popularity because of the richer features they provide compared to traditional libraries. As more users begin to use digital libraries, addressing downtimes of these valuable resources has become a high priority. Operating and providing access to digital content to anyone, anytime from anywhere in the world, results in a continued rise of administrative overhead for system monitoring and needs continuous human intervention. Given the volume of information and the huge infrastructure of modem libraries, continuous manual system administration is quite costly and not feasible. In this paper we propose a self healing digital library system as the solution to this problem and present the approach of adding self healing capabilities to an existing digital library project, the Digital Library of India (DLI). We also propose a self healing framework that enables successful reuse of our approach to other architecturally similar digital library systems. 展开更多
关键词 Digital library Self healing systems Failover Configuration management
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Non-perturbative QCD Effect on K-Factor of Drell-Yan Process
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作者 HOU Zhao-Yu ZHI Hai-Su CHEN Jun-Xiao 《Communications in Theoretical Physics》 SCIE CAS CSCD 2006年第3期517-520,共4页
By using a non-perturbative quark propagator with the lowest-dimensional condensate contributions from the QCD vacuum, the non-perturbative egect to K-factor of the Drell-Yan process is numerically investigated for 6^... By using a non-perturbative quark propagator with the lowest-dimensional condensate contributions from the QCD vacuum, the non-perturbative egect to K-factor of the Drell-Yan process is numerically investigated for 6^12C- 6^12C collision at the center-of-mass energy √s- 200 GeV, 630 GeV respectively. Calculated results show that the non-perturbative QCD effect has just a weak influence on K-factor in the two cases. 展开更多
关键词 K-FACTOR Drell-Yan process non-perturbative QCD
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汉字与古代水文化
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作者 王立军 叶瑞优 《中国教师》 2010年第3期59-60,共2页
水是生命之源,也是一个民族的文化与文明之源。两千多年前的管仲就已经认识到水是万物的本原,是派生一切事物的母体。他在《管子·水地篇》中说:“水者何也,万物之本原,诸生之宗室也。”其中的“本原”也就是“本源”,“本”... 水是生命之源,也是一个民族的文化与文明之源。两千多年前的管仲就已经认识到水是万物的本原,是派生一切事物的母体。他在《管子·水地篇》中说:“水者何也,万物之本原,诸生之宗室也。”其中的“本原”也就是“本源”,“本”是树木之根,“原”则是泉水之源。“本”是个指事字,在“木”的下部添加一个指事符号,以表示树木的根部。“原”是个会意字,金文作 ,从厂(像山崖之形),从泉,用山崖下有泉水流出表示水源之意。后因“原”字引申出“平原、原来”等意义,为了强调其本义与水有关,便在表示源头时加水旁作“源”。 展开更多
关键词 水文化 古代 “原”字 指事 “木” 会意 树木
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Image Restoration of Depth of Field Extension Imaging System Based on Genetic Algorithm
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作者 He Yun Wu Yangang +1 位作者 Tian Jialin Xu Wen 《International Journal of Technology Management》 2013年第2期37-40,共4页
Genetic algorithm is a search algorithm based on genetic mechanism and natural selection. It has been widely applied to research fields including image processing field. The paper improves standard genetic algorithm a... Genetic algorithm is a search algorithm based on genetic mechanism and natural selection. It has been widely applied to research fields including image processing field. The paper improves standard genetic algorithm and improves the arithmetic speed of the algorithm, which achieves better image restoration effect. And the paper compares the image restoration quality of traditional algorithm, standard genetic algorithm and improved genetic algorithm to prove the feasibility of applying genetic algorithm to image restoration. 展开更多
关键词 image restoration genetic algorithm image processing image degradation
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