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CALS数字化信息环境发展与应用研究 被引量:2
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作者 傅俭毅 龚时雨 +1 位作者 彭明军 冉承新 《计算机仿真》 CSCD 2005年第8期5-8,共4页
我国企业在推行信息化建设进程中,由于缺乏一种统一的、系统而全面的技术方案和发展战略,导致出现“自动化孤岛”现象。CALS作为一种在全球广泛推广与应用的数字化信息环境,对指导我国的信息化建设与促进科技工业的发展都具有十分重要... 我国企业在推行信息化建设进程中,由于缺乏一种统一的、系统而全面的技术方案和发展战略,导致出现“自动化孤岛”现象。CALS作为一种在全球广泛推广与应用的数字化信息环境,对指导我国的信息化建设与促进科技工业的发展都具有十分重要的意义。该文介绍了CALS数字化信息环境的产生发展与基本原理,提出了CALS完善的数字化信息环境体系结构,在总结CALS信息环境在军事与民用领域的应用情况以及介绍CALS信息环境下的技术应用后,阐述了在我国启动和推广CALS建设的必要性,并对我国进行CALS建设提出了建议。 展开更多
关键词 故字信息环境 发展 应用 研究 持续采办与寿命周期保障/光速商务
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“信息环境的环境化”问题研究对高校社会主义核心价值体系建设的价值
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作者 侯华莉 《辽宁行政学院学报》 2011年第10期97-99,共3页
"信息环境的环境化"问题的发展是改革开放以后成长起来的当代大学生对日渐多元化、复杂化的社会环境认知和形成相应价值取向和行为方式的重要机制。对这一问题的研究有助于以当代大学生为特定对象的高校社会主义核心价值体系... "信息环境的环境化"问题的发展是改革开放以后成长起来的当代大学生对日渐多元化、复杂化的社会环境认知和形成相应价值取向和行为方式的重要机制。对这一问题的研究有助于以当代大学生为特定对象的高校社会主义核心价值体系建设实践的探索。 展开更多
关键词 信息环境 信息环境环境 高校 社会主义核心价值体系
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“信息环境的环境化”问题对当代大学生价值观形成的影响
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作者 侯华莉 《东南传播》 2011年第5期86-88,共3页
"信息环境的环境化"是影响改革开放以后成长起来的当代大学生价值观形成的重要机制。通过对"信息环境的环境化"问题的研究,可以帮助我们准确认知当代大学生价值观形成的特点,积极引导当代大学生形成社会行为正确的... "信息环境的环境化"是影响改革开放以后成长起来的当代大学生价值观形成的重要机制。通过对"信息环境的环境化"问题的研究,可以帮助我们准确认知当代大学生价值观形成的特点,积极引导当代大学生形成社会行为正确的价值取向。 展开更多
关键词 信息环境 信息环境环境 当代大学生 价值观
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如何看待在自媒体时代下信息环境的环境化
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作者 郭正惠 《新闻传播》 2013年第9期56-56,共1页
随着现代科技的发展,网络设备的普及,形成了一个自媒体的时代,使人们处于一个信息环境和现实环境交错的状态之下。这样一个状态应该如何看待,又应该如何应对,成为社会面对的一个不小的问题。
关键词 信息环境环境 自媒体 影响 趋势 措施
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基于三维GIS平台的大圆航线三维可视化 被引量:2
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作者 郑亚波 郭海亮 李伟 《指挥控制与仿真》 2015年第6期128-132,共5页
针对三维可视化技术在空间数据可视化表达与分析方面的强大优势,利用大圆航线各分点经纬度的计算模型,建立了三维空间直角坐标系中大圆航线和各分点间恒向线的三维空间模型,运用三维可视化理论和基于OpenGL技术的Oceaninfo三维海洋环境... 针对三维可视化技术在空间数据可视化表达与分析方面的强大优势,利用大圆航线各分点经纬度的计算模型,建立了三维空间直角坐标系中大圆航线和各分点间恒向线的三维空间模型,运用三维可视化理论和基于OpenGL技术的Oceaninfo三维海洋环境信息可视化平台实现了大圆航线的三维表达,同时利用二分法曲线逼近原理和层次细节(LoD)技术实现了大圆航线不同视角、不同精度要求的三维可视化。该方法能够实现对大圆航线的高效逼真绘制。 展开更多
关键词 大圆航线 恒向线 三维可视 三维海洋环境信息可视平台
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电视娱乐节目与网络制造的相互作用
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作者 张霁 黄基秉 《成都大学学报(社会科学版)》 2012年第1期93-95,共3页
从多年前媒体选择娱乐报道来满足受众需求的传播环境,到今天媒体制造娱乐话题供人们消费,我们看到传统电视娱乐节目与网络制造的结合更为紧密,这带来了对传媒发展新的思考。文章结合信息环境化的相关理论,分析电视娱乐节目与层出不穷的... 从多年前媒体选择娱乐报道来满足受众需求的传播环境,到今天媒体制造娱乐话题供人们消费,我们看到传统电视娱乐节目与网络制造的结合更为紧密,这带来了对传媒发展新的思考。文章结合信息环境化的相关理论,分析电视娱乐节目与层出不穷的网络制造之间资源共享对受众认知及行为的影响,并对两种媒体的结合提出建议。 展开更多
关键词 电视娱乐节目 网络制造 拟态环境 信息环境化
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短视频算法逻辑下的模仿行为及平台干预策略——以抖音平台为例 被引量:1
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作者 王鑫轶 《科技传播》 2021年第11期163-165,共3页
抖音产品从产生之初就作为记录和模仿的传播媒介而存在,多有学者关注其中的模仿行为。近些年抖音的迭代使得模仿更多地穿过屏幕,与现实世界环境产生纠缠。文章通过对抖音短视频平台的媒介对于模仿规律重构的阐释,结合《互联网用户公众... 抖音产品从产生之初就作为记录和模仿的传播媒介而存在,多有学者关注其中的模仿行为。近些年抖音的迭代使得模仿更多地穿过屏幕,与现实世界环境产生纠缠。文章通过对抖音短视频平台的媒介对于模仿规律重构的阐释,结合《互联网用户公众账号信息服务管理规定》,探讨规范短视频模仿行为的治理路径。 展开更多
关键词 算法短视频模仿率 信息环境化 《互联网用户公众账号信息服务管理规定》
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青少年偏差行为之社会因素分析
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作者 祁洁 曲文勇 《青年与社会(下)》 2013年第2期38-39,共2页
青少年偏差行为古已有之,近些年呈现出大爆发的趋势不得不再次引起社会的共同关注。在文化转型的社会背景下,本文试图探究“文化堕距”对“青少年行为偏差”的影响,此外,随着信息社会的到来,“信息环境的环境化”也成为影响青少年... 青少年偏差行为古已有之,近些年呈现出大爆发的趋势不得不再次引起社会的共同关注。在文化转型的社会背景下,本文试图探究“文化堕距”对“青少年行为偏差”的影响,此外,随着信息社会的到来,“信息环境的环境化”也成为影响青少年偏差行为的重要原因。 展开更多
关键词 越轨 堕距 信息环境环境
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A Heterogeneous Information Fusion Deep Reinforcement Learning for Intelligent Frequency Selection of HF Communication 被引量:6
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作者 Xin Liu Yuhua Xu +3 位作者 Yunpeng Cheng Yangyang Li Lei Zhao Xiaobo Zhang 《China Communications》 SCIE CSCD 2018年第9期73-84,共12页
The high-frequency(HF) communication is one of essential communication methods for military and emergency application. However, the selection of communication frequency channel is always a difficult problem as the cro... The high-frequency(HF) communication is one of essential communication methods for military and emergency application. However, the selection of communication frequency channel is always a difficult problem as the crowded spectrum, the time-varying channels, and the malicious intelligent jamming. The existing frequency hopping, automatic link establishment and some new anti-jamming technologies can not completely solve the above problems. In this article, we adopt deep reinforcement learning to solve this intractable challenge. First, the combination of the spectrum state and the channel gain state is defined as the complex environmental state, and the Markov characteristic of defined state is analyzed and proved. Then, considering that the spectrum state and channel gain state are heterogeneous information, a new deep Q network(DQN) framework is designed, which contains multiple sub-networks to process different kinds of information. Finally, aiming to improve the learning speed and efficiency, the optimization targets of corresponding sub-networks are reasonably designed, and a heterogeneous information fusion deep reinforcement learning(HIF-DRL) algorithm is designed for the specific frequency selection. Simulation results show that the proposed algorithm performs well in channel prediction, jamming avoidance and frequency channel selection. 展开更多
关键词 HF communication ANTI-JAMMING intelligent frequency selection markov decision process deep reinforcement learning
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Research of New Concept Sonar—Cognitive Sonar 被引量:2
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作者 李晓花 李亚安 +1 位作者 崔琳 刘望生 《Journal of Marine Science and Application》 2011年第4期502-509,共8页
The performance of a sonar system is closely related to the marine environment and the target characteristics. When dealing with the echoes of a traditional active sonar system, the sonar designers often do not take i... The performance of a sonar system is closely related to the marine environment and the target characteristics. When dealing with the echoes of a traditional active sonar system, the sonar designers often do not take into account the influence of the environmental information and prior knowledge perceived by sonar receivers, making it difficult to obtain desired processing results. Based on the basic principle and key technology of sonar, this paper proposed a cognition-based intelligent sonar system in theory--cognitive sonar. Cognitive sonar is capable of jointly optimizing the transmission waveform and receiver according to the changes of environment so that its detection and identification performance can be significantly improved. 展开更多
关键词 SONAR COGNITION bat echolocation cognitive sonar
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Research on the innovation mode of Library Education in the new period
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作者 ZHAO Yaoyao 《International English Education Research》 2015年第10期114-116,共3页
with the development of the digital information environment, library education has gradually become one of the forms of social recognition. This paper expounds the connotation, features, functions and contents of libr... with the development of the digital information environment, library education has gradually become one of the forms of social recognition. This paper expounds the connotation, features, functions and contents of library education, and constructs the mode of Library Education in the new period. 展开更多
关键词 network library LIBRARY education mode
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A Reliable Routing Algorithm with Network Coding in Internet of Vehicles 被引量:1
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作者 Zhen Wang Jianqing Li +2 位作者 Manlin Fang Yang Li Botao Feng 《China Communications》 SCIE CSCD 2017年第5期174-184,共11页
The intelligent vehicle network uses advanced information technology to establish an efficient integrated vehicle transport system, which has received great attention in industry and academia, lnternet of Vehicles (... The intelligent vehicle network uses advanced information technology to establish an efficient integrated vehicle transport system, which has received great attention in industry and academia, lnternet of Vehicles (loV) in an urban environment is operated in a wireless environment with high bit error rate and interference. In addition, the wireless link between vehicles is likely to be lost. All of this makes it an important challenge to provide reliable mobile routing in an urban traffic environment. In this paper, a reliable routing algorithm with network coding (RR_ NC) is proposed to solve the above problems. A routing node sequence is discovered in IoV from source to destination by multi-metric ant colony optimization algorithm (MACO), and then clusters are formed around every node in the sequence. By adding linear encoding into the transmission of data between vehicle's clusters, the RR_NC provides much more reliable transmission and can recover the original message in the event of disorder and loss of message. Simulations are taken under different scenarios, and the results prove that this novel algorithm can deliver the information more reliably between vehicles in real-time with lower data loss and communication overhead. 展开更多
关键词 intelligent transportation system (ITS) internet of vehicles (IoV) ROUTING CLUSTER network coding MOBILITY
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Research on Construction of Corporate Culture Based on Knowledge Management
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作者 Mingjie Zhu 《International Journal of Technology Management》 2013年第7期125-127,共3页
With the advent of knowledge, knowledge has become a key resource of economic increase and growth. More and more enterprises begin to adopt knowledge management to enhance the competitiveness of enterprises, however, ... With the advent of knowledge, knowledge has become a key resource of economic increase and growth. More and more enterprises begin to adopt knowledge management to enhance the competitiveness of enterprises, however, knowledge management is not simply the use of information technology, but need to establish corresponding corporate culture environment. Therefore, building corporate culture adapting to knowledge management is an important concern. 展开更多
关键词 CONSTRUCTION Corporate Culture Knowledge Management.
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Development of university Document Resources Construction for the background of information services
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作者 Dongwang JIN 《International Journal of Technology Management》 2014年第11期60-62,共3页
The arrival of the information age, especially development and popularization of digital and network, which fundamentally changes the development process of the library, the library' s status as Literature Resource C... The arrival of the information age, especially development and popularization of digital and network, which fundamentally changes the development process of the library, the library' s status as Literature Resource Center has been hit. As the core work of the Library Document Resources Construction in concepts, content structure and evaluation etc. also undergone profound changes, a series of new problems have taken out, which we need to think and solve. In this passage, we discussed from the problem facing of Document Resources Construction work in the digital environment and how to deal with these challenges. 展开更多
关键词 information services literature resources LIBRARY
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Environmental Disclosure of Chemical Industry:Evidencefrom Chinese A-Share Market
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作者 Tang Jiufang Lin Xiaohua Tang Jiuhong 《Chinese Journal of Population,Resources and Environment》 2009年第1期23-29,共7页
Environmental pollution and environmental reporting have increasingly drawn the attention of the countries around the world. The paper selects A-share listed companies of chemical industry in China. Using logistic mod... Environmental pollution and environmental reporting have increasingly drawn the attention of the countries around the world. The paper selects A-share listed companies of chemical industry in China. Using logistic model, we research the impact of financial performance of listed companies upon environmental reporting. The conclusion of the study shows that the total number of enterprises which disclosed environmental information (EI) has increased year by year, and EI content and volume disclosed by heavy pollution corporations have increased annually. And the more profitability the listed companies attain, the more EI they are inclined to disclose. Moreover, companies will have an ability to disclose EI so as to reduce the agency costs arising from informa-tion asymmetry. Furthermore, the development capability of com-panies is of negative correlation to environmental reporting, and the liabilities degree of listed companies is of negative correlation to environmental reporting, but it is not significant. This paper also offers policy recommendations that enhance EI transparency and regulate EI reporting of listed companies. 展开更多
关键词 listed companies environmental reporting financial situations
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The study of the influence of network resources on English Teaching under the background of informatization
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作者 Shuping Li 《International Journal of Technology Management》 2014年第1期41-43,共3页
As an international language, English plays an extremely important role, and it has become the lingua franca of the world. For a long time, inefficiency exists in teaching or learning. Under the learning environment s... As an international language, English plays an extremely important role, and it has become the lingua franca of the world. For a long time, inefficiency exists in teaching or learning. Under the learning environment surrounded by native speakers, English, as a symbolic system, appears dull, or even because there is no information given appropriate experience and it becomes abstract. Many students are reluctant to learn after learning for a time, because it is difficult for reality, and it is not easy to consolidate, that 45 minutes of English learning environment also appears to be a little frustrated, as many students who have been admitted to the University said during the learning process of the entire university, they spent seventy percent of their energy to foreign language learning rather than their own major. This not only illustrates the importance of English teaching but also shows its difficult nature, the main reason is our bad English language teaching environment, there is a lack of communication in English language environment, however, the network information and the development of modern multimedia technology has greatly improve the English teaching environment. How to use the Internet information and multimedia technologies to create English learning environment, to optimize English teaching methods and to improve the quality of English teaching. 展开更多
关键词 network resources English teaching INFORMATIZATION
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Ethical Perspective on Turkish Environmental Impact Assessment for Nuclear Energy
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作者 Hayrettin Kilic 《Journal of Environmental Science and Engineering(B)》 2016年第6期314-322,共9页
In 2013, The Turkish Ministry of Environment and Urban Planning issued four thousand pages of a cut and paste Environmental Impact Assessment (EIA) report for the Akkuyu nuclear power plant and nuclear fuel fabricat... In 2013, The Turkish Ministry of Environment and Urban Planning issued four thousand pages of a cut and paste Environmental Impact Assessment (EIA) report for the Akkuyu nuclear power plant and nuclear fuel fabrication complex project located on Turkey's Mediterranean coastline, in the Mersin providence, which will be built on a build-own-operate basis by Russian company Rosatom. Numerous complaints have already been filed against the EIA, challenging the scientific integrity of the report on the following grounds: misrepresentation of failure to specify the radioactive inventory and of projected releases into the environment, omitting tritium and carbon-14; incomplete information about the toxic chemicals which will be injected into the cooling system throughout the nuclear complex; misleading information about the cooling water's temporal and chemical effects on marine life; lack of details on an emergency evacuation plan; lack of a comprehensive nuclear waste management plan; unspecified insurance coverage for the nuclear complex, noncompliance with third party liability requirements. Coupled with these complaints are allegations that signatures on some sensitive reports contained or referred to have been falsified. 展开更多
关键词 Turkish Nuclear Energy Project Environmental Impact Assessment.
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New eolian red clay sequence on the western Chinese Loess Plateau linked to onset of Asian desertification about 25 Ma ago 被引量:85
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作者 QIANG XiaoKe AN ZhiSheng +13 位作者 SONG YouGui CHANG Hong SUN YouBin LIU WeiGuo AO Hong DONG JiBao FU ChaoFeng WU Feng LU FengYan CAI YanJun ZHOU WeiJian CAO JunJi XU XinWen AI Li 《Science China Earth Sciences》 SCIE EI CAS 2011年第1期136-144,共9页
The expansion of inland Asia deserts has considerably influenced the environmental, social and economic activities in Asia. Aridification of inland Asia, especially timing of the initiation of Asian desertification, i... The expansion of inland Asia deserts has considerably influenced the environmental, social and economic activities in Asia. Aridification of inland Asia, especially timing of the initiation of Asian desertification, is a contentious topic in paleoclimatology. Late Cenozoic eolian loess-red clay sequences on the Chinese Loess Plateau, which possess abundant paleoclimatic and paleo-environmental information, can be regarded as an indicator of inland Asia desertification. Here we present a detailed magnetostratigraphic investigation of a new red clay sequence about 654 m in Zhuanglang located at the western Chinese Loess Plateau. Sedimentological, geochemical, mineralogical, and quartz morphological lines of evidence show that the red clay is of eolian origin. Magnetostratigraphic correlations indicate that this core sequence spans from 25.6 to 4.8 Ma, and typical eolian red clay appears as early as 25 Ma. This extends the lower limit of the red clay on the Chinese Loess Plateau from the previously thought early Miocene back into the late Oligocene. This new red clay record further implies that the inland Asia desertification was initiated at least by the late Oligocene. This sequence provides a unique high-resolution geological record for understanding the inland Asia desertification process since the late Oligocene. 展开更多
关键词 Chinese Loess Plateau eolian red clay MAGNETOSTRATIGRAPHY late Oiigocene inland Asia desertification
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Land use in semi-free ranging Tonkean macaques Macaca tonkeana depends on environmental conditions: A geographical information system approach
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作者 Cedric SUEUR Paul SALZE +1 位作者 Christiane WEBER Odile PETIT 《Current Zoology》 SCIE CAS CSCD 北大核心 2011年第1期8-17,共10页
Wild animals use their habitat according to ecological pressures such as predation, resource availability or tempera- ture, yet little is known about how individuals use their environment in semi free-ranging conditio... Wild animals use their habitat according to ecological pressures such as predation, resource availability or tempera- ture, yet little is known about how individuals use their environment in semi free-ranging conditions. We assessed whether a semi-free ranging group of Tonkean macaques Macaca tonkeana used its wooded parkland in a heterogeneous way. GIS and GPS were used to determine whether individuals adjusted their behaviors according to variation in environmental constraints over time of day and the course of a year. We demonstrated that social and resting activities occurred in high altitude areas and areas with a high density of bushes, whereas the group foraged in areas where the density of bushes and grass was low. In general, the animals used areas exposed to the sun that were not on a slope. Semi-free ranging Tonkean macaques seemed to behave like their wild counterparts in terms of activity budget, land use per activity and thermoregulation 展开更多
关键词 GPS GIS Temperature TOPOGRAPHY Activity budget Spatial autocorrelation PRIMATES
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