期刊文献+
共找到1,049篇文章
< 1 2 53 >
每页显示 20 50 100
Construction of Forestry Map Symbol Library and Symbolization Execution Based on MapGIS K9
1
作者 司瑶 武红敢 《Agricultural Science & Technology》 CAS 2010年第11期176-179,共4页
In order to improve the cartography efficiency and the intelligent level of forestry map,we put forward the symbolization scheme of forestry map based on MapGIS K9 platform.Firstly,the symbol library of forestry map w... In order to improve the cartography efficiency and the intelligent level of forestry map,we put forward the symbolization scheme of forestry map based on MapGIS K9 platform.Firstly,the symbol library of forestry map was constructed according to The Graphic Representation of Forestry Map which was issued by the National Forestry Bureau in October,2010.Then,the symbol configuration rule database was established to realize the expression of symbol configuration rule in the digital environment.Finally,the symbolization module was realized with the support of MapGIS Objects component development technology,and the thematic data of forestry were visualized according to the symbol configuration rule.The practice proved that the scheme could basically satisfy the cartography requirements of common forestry maps which included the forest management inventory map. 展开更多
关键词 Forestry map MapGIS K9 Map symbol library symbolization
下载PDF
Study on the Folk Costume Symbolization in Waterside Villages of Southern Yangtze in China
2
作者 崔荣荣 陶辉 沈琳琳 《Journal of Donghua University(English Edition)》 EI CAS 2007年第3期391-395,共5页
The folk costume in waterside villages of Southern Yangtze in China was notonly daily consumer goods, but also a symbol system of folk-custom culture. This symbol system was directly conveyed by a series medley shape ... The folk costume in waterside villages of Southern Yangtze in China was notonly daily consumer goods, but also a symbol system of folk-custom culture. This symbol system was directly conveyed by a series medley shape signs, many-faceted color signs and decorated craft signs of pleated skirt. Its origination, accumulation, continual process and development were greatly associated with the life style and paddy culture of waterside villages, such as the folk religion, social life, artistic philosophy, regional culture, the landform of waterside villages and the humanity environment. So the folk costume was the significant sign of practical function and also the significative sign of folk traditional culture, both of which composed the costume cultural symbol system of waterside villages of Southern Yangtze called " integration of aesthetic and practical function". 展开更多
关键词 waterside villages of Southern Yangtze folkcostune symbol system integration of aesthetic andpractical function
下载PDF
Detection of Turbulence Anomalies Using a Symbolic Classifier Algorithm in Airborne Quick Access Record(QAR)Data Analysis 被引量:1
3
作者 Zibo ZHUANG Kunyun LIN +1 位作者 Hongying ZHANG Pak-Wai CHAN 《Advances in Atmospheric Sciences》 SCIE CAS CSCD 2024年第7期1438-1449,共12页
As the risks associated with air turbulence are intensified by climate change and the growth of the aviation industry,it has become imperative to monitor and mitigate these threats to ensure civil aviation safety.The ... As the risks associated with air turbulence are intensified by climate change and the growth of the aviation industry,it has become imperative to monitor and mitigate these threats to ensure civil aviation safety.The eddy dissipation rate(EDR)has been established as the standard metric for quantifying turbulence in civil aviation.This study aims to explore a universally applicable symbolic classification approach based on genetic programming to detect turbulence anomalies using quick access recorder(QAR)data.The detection of atmospheric turbulence is approached as an anomaly detection problem.Comparative evaluations demonstrate that this approach performs on par with direct EDR calculation methods in identifying turbulence events.Moreover,comparisons with alternative machine learning techniques indicate that the proposed technique is the optimal methodology currently available.In summary,the use of symbolic classification via genetic programming enables accurate turbulence detection from QAR data,comparable to that with established EDR approaches and surpassing that achieved with machine learning algorithms.This finding highlights the potential of integrating symbolic classifiers into turbulence monitoring systems to enhance civil aviation safety amidst rising environmental and operational hazards. 展开更多
关键词 turbulence detection symbolic classifier quick access recorder data
下载PDF
State-Based Opacity Verification of Networked Discrete Event Systems Using Labeled Petri Nets
4
作者 Yifan Dong Naiqi Wu Zhiwu Li 《IEEE/CAA Journal of Automatica Sinica》 SCIE EI CSCD 2024年第5期1274-1291,共18页
The opaque property plays an important role in the operation of a security-critical system,implying that pre-defined secret information of the system is not able to be inferred through partially observing its behavior... The opaque property plays an important role in the operation of a security-critical system,implying that pre-defined secret information of the system is not able to be inferred through partially observing its behavior.This paper addresses the verification of current-state,initial-state,infinite-step,and K-step opacity of networked discrete event systems modeled by labeled Petri nets,where communication losses and delays are considered.Based on the symbolic technique for the representation of states in Petri nets,an observer and an estimator are designed for the verification of current-state and initial-state opacity,respectively.Then,we propose a structure called an I-observer that is combined with secret states to verify whether a networked discrete event system is infinite-step opaque or K-step opaque.Due to the utilization of symbolic approaches for the state-based opacity verification,the computation of the reachability graphs of labeled Petri nets is avoided,which dramatically reduces the computational overheads stemming from networked discrete event systems. 展开更多
关键词 INFINITE SYSTEM SYMBOLIC
下载PDF
Approximately Bi-Similar Symbolic Model for Discretetime Interconnected Switched System
5
作者 Yang Song Yongzhuang Liu Wanqing Zhao 《IEEE/CAA Journal of Automatica Sinica》 SCIE EI CSCD 2024年第10期2185-2187,共3页
Dear Editor,This letter concerns the development of approximately bi-similar symbolic models for a discrete-time interconnected switched system(DT-ISS).The DT-ISS under consideration is formed by connecting multiple s... Dear Editor,This letter concerns the development of approximately bi-similar symbolic models for a discrete-time interconnected switched system(DT-ISS).The DT-ISS under consideration is formed by connecting multiple switched systems known as component switched systems(CSSs).Although the problem of constructing approximately bi-similar symbolic models for DT-ISS has been addressed in some literature,the previous works have relied on the assumption that all the subsystems of CSSs are incrementally input-state stable. 展开更多
关键词 APPROXIMATE SYMBOLIC CONNECTED
下载PDF
SUMS OF DUAL TOEPLITZ PRODUCTS ON THE ORTHOGONAL COMPLEMENTS OF FOCK-SOBOLEV SPACES
6
作者 陈泳 Young Joo Lee 《Acta Mathematica Scientia》 SCIE CSCD 2024年第3期810-822,共13页
We consider dual Toeplitz operators on the orthogonal complements of the FockSobolev spaces of all nonnegative real orders.First,for symbols in a certain class containing all bounded functions,we study the problem of ... We consider dual Toeplitz operators on the orthogonal complements of the FockSobolev spaces of all nonnegative real orders.First,for symbols in a certain class containing all bounded functions,we study the problem of when an operator which is finite sums of the dual Toeplitz products is compact or zero.Next,for bounded symbols,we construct a symbol map and exhibit a short exact sequence associated with the C^(*)-algebra generated by all dual Toeplitz operators with bounded symbols. 展开更多
关键词 dual Toeplitz operators Fock-Sobolev spaces symbol map
下载PDF
Binary Program Vulnerability Mining Based on Neural Network
7
作者 Zhenhui Li Shuangping Xing +5 位作者 Lin Yu Huiping Li Fan Zhou Guangqiang Yin Xikai Tang Zhiguo Wang 《Computers, Materials & Continua》 SCIE EI 2024年第2期1861-1879,共19页
Software security analysts typically only have access to the executable program and cannot directly access the source code of the program.This poses significant challenges to security analysis.While it is crucial to i... Software security analysts typically only have access to the executable program and cannot directly access the source code of the program.This poses significant challenges to security analysis.While it is crucial to identify vulnerabilities in such non-source code programs,there exists a limited set of generalized tools due to the low versatility of current vulnerability mining methods.However,these tools suffer from some shortcomings.In terms of targeted fuzzing,the path searching for target points is not streamlined enough,and the completely random testing leads to an excessively large search space.Additionally,when it comes to code similarity analysis,there are issues with incomplete code feature extraction,which may result in information loss.In this paper,we propose a cross-platform and cross-architecture approach to exploit vulnerabilities using neural network obfuscation techniques.By leveraging the Angr framework,a deobfuscation technique is introduced,along with the adoption of a VEX-IR-based intermediate language conversion method.This combination allows for the unified handling of binary programs across various architectures,compilers,and compilation options.Subsequently,binary programs are processed to extract multi-level spatial features using a combination of a skip-gram model with self-attention mechanism and a bidirectional Long Short-Term Memory(LSTM)network.Finally,the graph embedding network is utilized to evaluate the similarity of program functionalities.Based on these similarity scores,a target function is determined,and symbolic execution is applied to solve the target function.The solved content serves as the initial seed for targeted fuzzing.The binary program is processed by using the de-obfuscation technique and intermediate language transformation method,and then the similarity of program functions is evaluated by using a graph embedding network,and symbolic execution is performed based on these similarity scores.This approach facilitates cross-architecture analysis of executable programs without their source codes and concurrently reduces the risk of symbolic execution path explosion. 展开更多
关键词 Vulnerability mining de-obfuscation neural network graph embedding network symbolic execution
下载PDF
A Study on the Symbol-Based Narrative in the International Communication of Cities
8
作者 Zhang Li 《Contemporary Social Sciences》 2024年第4期41-52,共12页
Cultural symbols,a manifestation of cities’cultural resources,are not only signs that frame concepts but also forms that express meanings.Exploring the international communication of cities from the perspective of sy... Cultural symbols,a manifestation of cities’cultural resources,are not only signs that frame concepts but also forms that express meanings.Exploring the international communication of cities from the perspective of symbols,this paper analyzes in depth how cities create their cultural symbols in the dynamic process of international communication in an era of symbol-based digital media,and how they develop their narratives and explain meanings through the dissemination of symbols when telling their stories to international audiences,thus enhancing the efficiency and effectiveness of their international communication efforts. 展开更多
关键词 CITIES international communication cultural symbols city narratives
下载PDF
Yeats’s Ideals:Women Old and Young
9
作者 DONG Qian 《Journal of Literature and Art Studies》 2024年第5期330-334,共5页
William Butler Yeats ranks among the most widely admired and intensively studied poets of the 20th century.This paper intends to explore the women who have exerted the most critical influences upon Yeats,namely Gonne,... William Butler Yeats ranks among the most widely admired and intensively studied poets of the 20th century.This paper intends to explore the women who have exerted the most critical influences upon Yeats,namely Gonne,Lady Gregory,and Georgie Hyde-Lees.Even in Yeats’s poetry involved with symbolism,it is worth noting that his employment of symbols has used these women as the archetypes,and that the historical context rendered Yeats’s representations of them in his poetry all the more interesting. 展开更多
关键词 IDEALS WOMEN representation SYMBOLISM OCCULT
下载PDF
Lecture on Tai Chi Culture Held in New Zealand
10
作者 Li Dong 《China & The World Cultural Exchange》 2024年第6期20-21,共2页
On December 17,2020,the United Nations Educational,Scientific and Cultural Organization(UNESCO)inscribed China's Taijiquan,also known as Tai Chi,on the Representative List of the Intangible Cultural Heritage of Hu... On December 17,2020,the United Nations Educational,Scientific and Cultural Organization(UNESCO)inscribed China's Taijiquan,also known as Tai Chi,on the Representative List of the Intangible Cultural Heritage of Humanity.Nowadays,Taijiquan,as a symbol of traditional Chinese culture,has become an important bridge and bond for China's cultural exchanges with other countries,inheriting the cultural gene of the Chinese nation. 展开更多
关键词 SYMBOL UNESCO TAI
下载PDF
Chinese New Year:A Celebration of Culture and Unity
11
作者 SHAHBAZ KHAN 《China Today》 2024年第2期39-41,共3页
Many countries list the Spring Festival as a national holiday,and about one-fifth of humanity celebrates this festival in various ways.THE Chinese New Year,also known as the Spring Festival,is a time-honored social an... Many countries list the Spring Festival as a national holiday,and about one-fifth of humanity celebrates this festival in various ways.THE Chinese New Year,also known as the Spring Festival,is a time-honored social and cultural tradition that has been celebrated for thousands of years.It is a festival that not only marks the inception of a new year in Chinese lunar calendar,but also acts as a symbolic bridge to connect individuals from different cultures and backgrounds. 展开更多
关键词 UNITY SYMBOLIC FESTIVAL
下载PDF
Chinese Wisdom on Water Governance
12
作者 ZHOU LIN 《China Today》 2024年第8期61-61,共1页
Water Governance in China-Perspectives of Xi Jinping Author:Ministry of Water Resources Hardcover,512 pages Published by Foreign Languages Press Water has a vital symbolic significance in Chinese culture.Over 2,000 ye... Water Governance in China-Perspectives of Xi Jinping Author:Ministry of Water Resources Hardcover,512 pages Published by Foreign Languages Press Water has a vital symbolic significance in Chinese culture.Over 2,000 years ago,Lao Zi,the philosopher and founder of Taoism in the late Spring and Autumn Period(770-476 BC),noted,“The greatest virtue is like water,nurturing all living things without competing with them,”conveying the idea that true virtue,like flowing water,benefits all. 展开更多
关键词 SPRING PING SYMBOLIC
下载PDF
Consumer Culture in The Great Gatsby
13
作者 ZHU Yuan-chen 《Journal of Literature and Art Studies》 2024年第2期124-127,共4页
F.Scott Fitzgerald’s The Great Gatsby successfully portrays the“Jazz Age”.In the early 20th century,the United States transitioned from a production-based society to a consumer-based society,leading to an era of un... F.Scott Fitzgerald’s The Great Gatsby successfully portrays the“Jazz Age”.In the early 20th century,the United States transitioned from a production-based society to a consumer-based society,leading to an era of unparalleled prosperity.However,in the context of consumer culture,individuals often transition from being masters of their possessions to becoming enslaved by them.As a result,their behaviours and values become increasingly associated with extravagance and consumption.This paper uses Baudrillard’s theory of consumer society and textual analysis to explore the impact of consumer culture on human beings through the symbolization of men and objectification of women in The Great Gatsby.The meanings embedded in the novel are revealed from a different perspective. 展开更多
关键词 consumer culture SYMBOLS OBJECTIFICATION The Great Gatsby
下载PDF
Symbols in The Magic Barrel
14
作者 FU He-yuan 《Journal of Literature and Art Studies》 2024年第1期48-53,共6页
The article takes the famous modern American Jewish writer Bernard Malamud’s novel The Magic Barrel as the object of study,and uses symbolism to interpret it,analyzing it one by one in terms of the magic barrel,the c... The article takes the famous modern American Jewish writer Bernard Malamud’s novel The Magic Barrel as the object of study,and uses symbolism to interpret it,analyzing it one by one in terms of the magic barrel,the colors,the seasons and the windows,respectively,so as to reveal the process of getting rid of the childishness within the novel’s male protagonist,Leo Finkel,who is maturing,as well as the novel’s Jewish theme of searching for the soul of the self. 展开更多
关键词 SYMBOL magic barrel WINDOW
下载PDF
Guido Reni’s Infant Bacchus: “In vino veritas”
15
作者 Liana De Girolami Cheney 《Journal of Literature and Art Studies》 2024年第1期1-39,共39页
This article delves into the significance of Guido Reni’s Infant Bacchus,created during the Italian Baroque period.By examining historical and iconographic elements,the study aims to interpret the symbolism depicted ... This article delves into the significance of Guido Reni’s Infant Bacchus,created during the Italian Baroque period.By examining historical and iconographic elements,the study aims to interpret the symbolism depicted in the painting.The historical aspects include the birth of Dionysus or Bacchus in classical and Italian Renaissance imagery and literary and visual sources that influenced Reni’s solo painting.The iconographic components encompass the infant’s nude body,the child’s bodily functions,and the attributes associated with Bacchus,the God of Agriculture,Revelry,and Wine,such as the grapevines,grapes,ivy,glass flask,kantharos(wine cup),and wine barrel.The emblematic and cosmological associations of Bacchus’s divinity are considered as well. 展开更多
关键词 Infant Bacchus Greek-Roman mythology emblems optics REFLECTIONS planetary symbolism Giovanni Belli Andrea Alciato Vincenzo Cartari Cesare Ripa and Guido Reni
下载PDF
Camilla Guerrieri’s Portrait of Guidobaldo II della Rovere:Symbols of Honor and Power
16
作者 Liana De Girolami Cheney 《Journal of Literature and Art Studies》 2024年第8期641-659,共19页
The Altomani&Sons Collection owns a remarkable newly discovered portrait of Guidobaldo II della Rovere,Duke of Urbino(1514-1574),a historical military figure who was a condottiere,ruler of Urbino,Commander-in-chie... The Altomani&Sons Collection owns a remarkable newly discovered portrait of Guidobaldo II della Rovere,Duke of Urbino(1514-1574),a historical military figure who was a condottiere,ruler of Urbino,Commander-in-chief of the Papal Estate,and Perfect of Rome,as well as a collector and patron of the Fine Arts.Camilla Guerrieri Nati(1628-1694),a seventeenth-century Italian painter from Fossombrone(in the province of Pesaro and Urbino),portrayed this heroic personage surrounded by emblems associated with his military courage and leadership,including his plumed burgonet helmet,metal gilded armor,a necklace with the golden fleece,and batons of secular and religious dominions.This oil painting on copper-considered a precious metal at the time-emphasizes the importance of the commission.The material and technique also reveals a unique artistic achievement in that it provides the painting with a smooth,reflective surface and vibrant coloration,symbolizing precious imagery. 展开更多
关键词 Camilla Guerrieri Della Rovere Family Negroli Family Minerva Mars military portrait armor BATON helmet oil on copper dolphin and oak symbolism
下载PDF
“兰花型”老人与“蒲公英型”老人
17
作者 殷志勇 《疯狂英语(新悦读)》 2024年第11期54-55,78,共3页
Activity 1 Think about the following questions and write down your answers before reading the text.1.Can flowers symbolize personalities?2.Do you know your grandparentspersonalities?
关键词 FLOWERS SYMBOL YOU
下载PDF
Delicious Food in Nanyang-Xinye Board Noodles
18
作者 张婉琳 陈圆圆(指导) 《疯狂英语(初中天地)》 2024年第11期70-71,共2页
Nanyang,a city with a long history,offers many kinds of delicious food.Xinye board noodles stand out as a remarkable(显著的)one.With unique taste and local features,they have become a significant(重要的)symbol of Nany... Nanyang,a city with a long history,offers many kinds of delicious food.Xinye board noodles stand out as a remarkable(显著的)one.With unique taste and local features,they have become a significant(重要的)symbol of Nanyang cuisine. 展开更多
关键词 SYMBOL Nan yan
下载PDF
From Tanzania With Love
19
作者 YU XIANGJUN 《ChinAfrica》 2024年第10期54-55,共2页
A caféin the ancient city of Kashgar has become a symbol of cross-cultural bonding.Strolling through the winding streets of the ancient city of Kashgar in northwest China’s Xinjiang Uygur Autonomous Region,you w... A caféin the ancient city of Kashgar has become a symbol of cross-cultural bonding.Strolling through the winding streets of the ancient city of Kashgar in northwest China’s Xinjiang Uygur Autonomous Region,you will come across a cozy cafécalled Dili&Diya.The aroma of freshly brewed coffee drifts through the air,much like the heart-warming love story of the café’s owners,spreading warmth to all who visit. 展开更多
关键词 WINDING NORTHWEST SYMBOL
原文传递
Nanyang Pyrography-A Treasured Art Through Millennia
20
作者 王宇婧 陈圆圆(指导) 《疯狂英语(初中天地)》 2024年第11期66-67,共2页
Nanyang pyrography is a special art from Nanyang that is important in the art world.It has a unique way of showing things with good skills.This art shows the deep culture and beauty of Nanyang and is a famous symbol o... Nanyang pyrography is a special art from Nanyang that is important in the art world.It has a unique way of showing things with good skills.This art shows the deep culture and beauty of Nanyang and is a famous symbol of its culture. 展开更多
关键词 SYMBOL Nan yan
下载PDF
上一页 1 2 53 下一页 到第
使用帮助 返回顶部