期刊文献+
共找到11篇文章
< 1 >
每页显示 20 50 100
书写“全息式”仪式音乐民族志——鄂温克族敖包祭祀仪式音乐研究反思 被引量:6
1
作者 苗金海 《民族艺术》 CSSCI 北大核心 2018年第6期100-106,共7页
以往的鄂温克族敖包祭祀仪式音乐研究,以无声的影像资料为研究起点,引起对于视觉人类学信息残缺的质疑,加之田野调查过程中"身体凝视"与互动仪式的切身体验,引发音乐人类学与人类学的对话与反思,因而有必要提出书写"全息... 以往的鄂温克族敖包祭祀仪式音乐研究,以无声的影像资料为研究起点,引起对于视觉人类学信息残缺的质疑,加之田野调查过程中"身体凝视"与互动仪式的切身体验,引发音乐人类学与人类学的对话与反思,因而有必要提出书写"全息式"仪式音乐民族志的构想,以及关注看、听、嗅、尝、触多种感官经验与个体体验的研究模式。"全息式"仪式音乐民族志需要音乐文化认知过程的"三层次":底层立足于对表象的"全息式"感知,着眼于近景;中间层次关注情感体验与"互主体"间的情感互动,着眼于中景,强调在仪式中音乐和情感对于建构身份认同的重要作用;第三层次是对于概念、信仰、思想等意识形态方面的认知。理想的"全息式"仪式音乐民族志应追求全息式的生理感知、全身心的情感体验、全方位的心理认知。 展开更多
关键词 “全息式”民族志 认知“三层次”说 鄂温克族 敖包祭祀 音乐
原文传递
Energy Efficient Switch Policy for Small Cells 被引量:1
2
作者 GAN Xiaoying WANG Luyang +4 位作者 FENG Xinxin LIU Jing YU Hui ZHANG Zhizhong LIU Haitao 《China Communications》 SCIE CSCD 2015年第1期78-88,共11页
Switch policy is essential for small cells to properly serve variable number of users in an energy efficient way.However,frequently switching small cell base stations(SBSs) may increase the network operating cost,espe... Switch policy is essential for small cells to properly serve variable number of users in an energy efficient way.However,frequently switching small cell base stations(SBSs) may increase the network operating cost,especially when there is an nonnegligible start-up energy cost.To this end,by observing the variety of user number,we focus on the design of a switch policy which minimize the cumulative energy consumption.A given user transmission rate is guaranteed and the capability of SBSs are limited as well.According to the knowledge on user number variety,we classify the energy consumption problem into two cases.In complete information case,to minimize the cumulative energy consumption,an offline solution is proposed according to critical segments.A heuristic algorithm for incomplete information case(HAIIC) is proposed by tracking the difference of cumulative energy consumption.The upper bound of the Energy Consumption Ratio(ECR) for HAIIC is derived as well.In addition,a practical Q-learning based probabilistic policy is proposed.Simulation results show that the proposed HAIIC algorithm is able to save energy efficiently. 展开更多
关键词 heterogeneous network small cell switch policy Q-LEARNING
下载PDF
A Survey on Information-Centric Networking: Rationales, Designs and Debates 被引量:8
3
作者 JIANG Xiaoke BI Jun +1 位作者 NAN Guoshun LI Zhaogeng 《China Communications》 SCIE CSCD 2015年第7期1-12,共12页
The basic function of the Internet is to delivery data(what) to serve the needs of all applications. IP names the attachment points(where) to facilitate ubiquitous interconnectivity as the current way to deliver data.... The basic function of the Internet is to delivery data(what) to serve the needs of all applications. IP names the attachment points(where) to facilitate ubiquitous interconnectivity as the current way to deliver data. The fundamental mismatch between data delivery and naming attachment points leads to a lot of challenges, e.g., mapping from data name to IP address, handling dynamics of underlying topology, scaling up the data distribution, and securing communication, etc. Informationcentric networking(ICN) is proposed to shift the focus of communication paradigm from where to what, by making the named data the first-class citizen in the network, The basic consensus of ICN is to name the data independent from its container(space dimension) and session(time dimension), which breaks the limitation of point-to-point IP semantic. It scales up data distribution by utilizing available resources, and facilitates communication to fit diverse connectivity and heterogeneous networks. However, there are only a few consensuses on the detailed design of ICN, and quite a few different ICN architectures are proposed. This paper reveals the rationales of ICN from the perspective of the Internet evolution, surveys different design choices, and discusses on two debatable topics in ICN, i.e.,self-certifying versus hierarchical names, and edge versus pervasive caching. We hope this survey helps clarify some mis-understandings on ICN and achieve more consensuses. 展开更多
关键词 information-centric networking content-centric networking future internet architecture named-data networking PUBLISH-SUBSCRIBE
下载PDF
Application of Eliminating Zero-order Diffraction Light in Wavefront Reconstruction of Inverse Diffraction Computation
4
作者 LI Jun-chang PENG Zu-jie CHEN Jin-bo 《Optoelectronics Letters》 EI 2006年第5期379-382,共4页
According to the Collins’ formula and its inverse diffraction computation,this paper presents an algorithm for reconstructing the object wavefront of a numerical holograph.To improve the quality of wavefront reconstr... According to the Collins’ formula and its inverse diffraction computation,this paper presents an algorithm for reconstructing the object wavefront of a numerical holograph.To improve the quality of wavefront reconstruction,a technique of eliminating the zero-order diffraction light is introduced,which is achieved by subtraction of two intensities of the interference patterns.The computer simulation and image processing show that the method of eliminating the zero-order diffraction beam can be applied to the wavefront reconstruction of inverse diffraction computation. 展开更多
关键词 逆衍射 波阵面 图象重建 数字全息 干扰模
下载PDF
An entropy-based unsupervised anomaly detection pattern learning algorithm
5
作者 杨英杰 马范援 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2005年第1期81-85,共5页
Currently, most anomaly detection pattern learning algorithms require a set of purely normal data from which they train their model. If the data contain some intrusions buried within the training data, the algorithm m... Currently, most anomaly detection pattern learning algorithms require a set of purely normal data from which they train their model. If the data contain some intrusions buried within the training data, the algorithm may not detect these attacks because it will assume that they are normal. In reality, it is very hard to guarantee that there are no attack items in the collected training data. Focusing on this problem, in this paper, firstly a new anomaly detection measurement is proposed according to the probability characteristics of intrusion instances and normal instances. Secondly, on the basis of anomaly detection measure, we present a clustering-based unsupervised anomaly detection patterns learning algorithm, which can overcome the shortage above. Finally, some experiments are conducted to verify the proposed algorithm is valid. 展开更多
关键词 anomaly detection intrusion detection computer security pattern learning
下载PDF
Derivation of Multiverse from Universal Wave Function Interpretation of String Theory
6
作者 Zhi Gang Sha Rulin Xiu 《Journal of Physical Science and Application》 2017年第6期1-5,共5页
The multiverse is a hypothesis created to solve certain problems in cosmology. Currently, this scheme is still largely ad hoc, rather than derived from fundamental laws and principles. Because of this, the predictive ... The multiverse is a hypothesis created to solve certain problems in cosmology. Currently, this scheme is still largely ad hoc, rather than derived from fundamental laws and principles. Because of this, the predictive power of this theory is rather limited. Furthermore, there are concerns that this theory will make it impossible to calculate some measured quantities, such as the masses of quarks and the electron. In this paper, we will show that a new development in string theory, the universal wave function interpretation of string theory, provides a way to derive the mathematical expression of the multiverse. We will demonstrate that the Weyl invariance existing in string theory indicates that our observed universe is a projection from a hologram. We will present how the laws of physics can be derived from this fact. Furthermore, we suggest it may also provide a way to calculate the masses of fundamental particles such as quarks and the electron. 展开更多
关键词 String theory MULTIVERSE grand unification theory cosmology holographic universe universal wave function interpretation of string theory.
下载PDF
Geographical Patterns of Cultural Values, Entrepreneurship and Economic Development
7
作者 Riste Temjanovski Tamara Jovanov Marjanova 《Journal of Earth Science and Engineering》 2015年第4期262-269,共8页
Globalization and information technologies are new realities that have brought profound changes in lifestyles worldwide. This is reshaping the overall pattern of life custom, cultural production, consumption and trade... Globalization and information technologies are new realities that have brought profound changes in lifestyles worldwide. This is reshaping the overall pattern of life custom, cultural production, consumption and trade in a world increasingly filled with changes and economic diversity. In an age of globalization, often ask questions and discussions concerning about successes and vitalities of nations. Globalization and technological revolutions race ahead and transform the world, and how to traces the real business to success. There are thousands of good examples where any nations have shown entrepreneurial talents and have succeeded. It is culture that principally explains, in many cases, or geographical pattern where some countries are developing more rapidly and more successfully than others. How to explain economic success of this nation's miracles or simple the secret is creative entrepreneurships? This paper explores the complex interactions between the geographic pattern from one side and cultural, technological and social aspects of entrepreneurship from other side which generates the dynamic processes of the world economy. In this era of transformation, creativity and knowledge entrepreneurship are powerful tools of fostering economic progress and development. 展开更多
关键词 Geographical pattern CULTURE ENTREPRENEURSHIP economic activity and development.
下载PDF
评张东荪论中国传统宇宙观 被引量:3
8
作者 张耀南 《哲学研究》 CSSCI 北大核心 2003年第4期77-82,共6页
关键词 张东荪 中国 宇宙观 “函数” “职司” 《知识与文化》 “有机体” “内在关系式” “整体主义” “全体主义” “全息式” “职能先于存在”
原文传递
Three-step three-party quantum secure direct communication 被引量:11
9
作者 Shan-Shan Chen Lan Zhou +1 位作者 Wei Zhong Yu-Bo Sheng 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS CSCD 2018年第9期26-30,共5页
We propose a three-party quantum secure direct communication(QSDC) protocol with hyperentanglement in both spatial-mode and polarization degrees of freedom. The secret message can be encoded independently with desired... We propose a three-party quantum secure direct communication(QSDC) protocol with hyperentanglement in both spatial-mode and polarization degrees of freedom. The secret message can be encoded independently with desired unitary operations in two degrees of freedom. In this protocol, a party can synchronously obtain the other two parties' messages. Compared with previous three-party QSDC protocols, our protocol has several advantages. First, the single photons in our protocol are only required to transmit for three times. This advantage makes this protocol simple and useful. Second, Alice and Bob can send different secret messages to Charlie, respectively. Finally, with hyperentanglement, this protocol has a higher information capacity than other protocols. 展开更多
关键词 quantum communication quantum secure direct communication hyperentanglement
原文传递
HYPERGAMES AND BAYESIAN GAMES:A THEORETICAL COMPARISON OF THE MODELS OF GAMES WITH INCOMPLETE INFORMATION 被引量:1
10
作者 Yasuo SASAKI Kyoichi KIJIMA 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2012年第4期720-735,共16页
The present study discusses the relationships between two independently developed models of games with incomplete information, hypergames (Bennett, 1977) and Bayesian games (Harsanyi, 1967). The authors first show... The present study discusses the relationships between two independently developed models of games with incomplete information, hypergames (Bennett, 1977) and Bayesian games (Harsanyi, 1967). The authors first show that any hypergame can naturally be reformulated in terms of Bayesian games in an unified way. The transformation procedure is called Bayesian representation of hypergame. The authors then prove that some equilibrium concepts defined for hypergames are in a sense equivalent to those for Bayesian games. Furthermore, the authors discuss carefully based on the proposed analysis how each model should be used according to the analyzer's purpose. 展开更多
关键词 Bayesian game Bayesian representations of hypergame hypergame incomplete information."
原文传递
On the environmental information for solar and wind energy facilities
11
作者 WENG FuZhong LIU QuanHua ZOU XiaoLei 《Science China Earth Sciences》 SCIE EI CAS 2012年第5期796-801,共6页
Wind and solar energy are projected to be major sources of the world's power in the coming decades.In this study,we first introduce satellite observations for surface solar irradiance and wind,and then discuss usi... Wind and solar energy are projected to be major sources of the world's power in the coming decades.In this study,we first introduce satellite observations for surface solar irradiance and wind,and then discuss using the data for prediction and assessment of energy distribution.Using the current NCEP global forecast model (GFS),the global mean and standard deviation of solar power at the surface for the 5-d forecast are about 212 and 124 W/m2,respectively.For a 24-h forecast of a 3-h mean,the relative error is about 30%,and for a prediction of the daily mean,it is about 15%.The relative error of wind power forecasts for a 24-h forecast of a 3-h mean and a daily mean is 70% and 35%,respectively.The reanalysis results based on satellite observations and numerical weather prediction model are also used to study the distribution of solar and wind energy and the variation of the distribution related to climate change.No significant trend in downward solar radiation is found at the surface in the reanalysis data sets.Surface wind power however exhibits a significant positive trend as the global temperature is warming up.A comparison of a decadal mean wind energy between two decades (from 1949 to 1958 vs.from 1999 to 2008) shows that most of Asia had experienced a decrease in surface wind energy.Therefore,decisions about renewable energy developments need to consider such climate change scenarios. 展开更多
关键词 wind energy solar energy PREDICTABILITY ASSESSMENT
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部