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Lossless embedding: A visually meaningful image encryption algorithm based on hyperchaos and compressive sensing 被引量:1
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作者 王兴元 王哓丽 +2 位作者 滕琳 蒋东华 咸永锦 《Chinese Physics B》 SCIE EI CAS CSCD 2023年第2期136-149,共14页
A novel visually meaningful image encryption algorithm is proposed based on a hyperchaotic system and compressive sensing(CS), which aims to improve the visual security of steganographic image and decrypted quality. F... A novel visually meaningful image encryption algorithm is proposed based on a hyperchaotic system and compressive sensing(CS), which aims to improve the visual security of steganographic image and decrypted quality. First, a dynamic spiral block scrambling is designed to encrypt the sparse matrix generated by performing discrete wavelet transform(DWT)on the plain image. Then, the encrypted image is compressed and quantified to obtain the noise-like cipher image. Then the cipher image is embedded into the alpha channel of the carrier image in portable network graphics(PNG) format to generate the visually meaningful steganographic image. In our scheme, the hyperchaotic Lorenz system controlled by the hash value of plain image is utilized to construct the scrambling matrix, the measurement matrix and the embedding matrix to achieve higher security. In addition, compared with other existing encryption algorithms, the proposed PNG-based embedding method can blindly extract the cipher image, thus effectively reducing the transmission cost and storage space. Finally, the experimental results indicate that the proposed encryption algorithm has very high visual security. 展开更多
关键词 chaotic image encryption compressive sensing meaningful cipher image portable network graphics image encryption algorithm
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Meaning in Life and Mental Health Issues in Older Adults:A Meta-Analysis
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作者 Shu Nie Jiyoon Lim +2 位作者 Xintian Xu Lei Zheng Yiqun Gan 《International Journal of Mental Health Promotion》 2023年第9期971-984,共14页
This study aims to be the first to use meta-analysis to explore the relationship between meaning in life(MIL)and mental health issues among older adults.A meta-analysis was conducted using six databases,resulting in 1... This study aims to be the first to use meta-analysis to explore the relationship between meaning in life(MIL)and mental health issues among older adults.A meta-analysis was conducted using six databases,resulting in 16 studies with 5,074 participants in total.The“metacor”and“forestplot”packages in R-Studio were used for data analysis.The total effect was calculated using a random-effects model,with I2=86%in the heterogeneity test.The results showed a moderate negative correlation between MIL and mental health issues among older adults,with an average effect of−0.37.Five potential moderating variables were examined:the conceptualization of MIL(value vs.purpose),region(Asian vs.Western countries),residence status(community vs.nursing home vs.hospital),types of mental health issues,and evaluation methods(clinical vs.non-clinical).The first four had no significant moderating effect.The mean correlation coefficients between mental health issues and value/purpose were−0.49/−0.33;the mean correlation coefficients in Asian countries and Western countries were−0.48 and−0.34;the mean correlation coefficients among participants living in community/nursing home/mixed status were−0.33/−0.40/−0.40;the mean correlation coefficients between MIL and depression/others were−0.37/−0.35;however,the negative relationship between MIL and mental health issues was stronger when non-clinical evaluations(self-report only)were used.Specifically,the mean correlation coefficient for non-clinical evaluations was−0.42 and for clinical evaluations was−0.29.This study is the first meta-analysis to identify the negative correlation between older adults’MIL and mental health issues.Significant moderating effects of evaluation methods were found. 展开更多
关键词 meaning in life mental health issues DEPRESSION ANXIETY META-ANALYSIS older adults
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Visually meaningful image encryption algorithm based on digital signature
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作者 Xiaoling Huang Youxia Dong +2 位作者 Guodong Ye Wun-She Yap Bok-Min Goi 《Digital Communications and Networks》 SCIE CSCD 2023年第1期159-165,共7页
Traditional image encryption algorithms transform a plain image into a noise-like image.To lower the chances for the encrypted image being detected by the attacker during the image transmission,a visually meaningful i... Traditional image encryption algorithms transform a plain image into a noise-like image.To lower the chances for the encrypted image being detected by the attacker during the image transmission,a visually meaningful image encryption scheme is suggested to hide the encrypted image using another carrier image.This paper proposes a visually meaningful encrypted image algorithm that hides a secret image and a digital signature which provides authenticity and confidentiality.The recovered digital signature is used for the purpose of identity authentication while the secret image is encrypted to protect its confidentiality.Least Significant Bit(LSB)method to embed signature on the encrypted image and Lifting Wavelet Transform(LWT)to generate a visually meaningful encrypted image are designed.The proposed algorithm has a keyspace of 139.5-bit,a Normalized Correlation(NC)value of 0.9998 which is closer to 1 and a Peak Signal to Noise Ratio(PSNR)with a value greater than 50 dB.Different analyses are also performed on the proposed algorithm using different images.The experimental results show that the proposed scheme is with high key sensitivity and strong robustness against pepper and salt attack and cropping attack.Moreover,the histogram analysis shows that the original carrier image and the final visual image are very similar. 展开更多
关键词 Visually meaningful image encryption Lifting wavelet transform Lorenz system SIGNATURE SECURITY
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Analysis of the Symbolic Meaning of James Joyce’s Araby
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作者 SUN Qiu-yue 《Journal of Literature and Art Studies》 2023年第3期160-164,共5页
Araby is a short story by the famous Irish stream-of-consciousness writer James Joyce.Through a series of images,the novel expresses the theme of the story:the“mental paralysis”of Dubliners and the“spiritual Epiph... Araby is a short story by the famous Irish stream-of-consciousness writer James Joyce.Through a series of images,the novel expresses the theme of the story:the“mental paralysis”of Dubliners and the“spiritual Epiphany”of the little boy,which reflects the spiritual barren of Dubliners at that time.Through the analysis of the symbolic meaning of many images in the work,this paper reveals the social background and religious significance hidden behind the images. 展开更多
关键词 symbolic meaning James Joyce ARABY
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The Comparative Study of Chuangtse’s English Translations Under the Theory of Spirit Transmission and Meaning Conveyance
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作者 QIN Xiaowan PENG Keming 《Cultural and Religious Studies》 2023年第4期183-186,共4页
Cultural-loaded word is one of the most popular topics in translation studies.The theory of spirit transmission and meaning conveyance provides a new way for the translation of cultural-loaded word.Based on the A Happ... Cultural-loaded word is one of the most popular topics in translation studies.The theory of spirit transmission and meaning conveyance provides a new way for the translation of cultural-loaded word.Based on the A Happy Excursion,this paper makes a comparative analysis of the translation strategies of seven English versions.This study will reveal the similarities and differences between Chinese and foreign translators’translation strategies. 展开更多
关键词 Chuangtse spirit transmission and meaning conveyance comparative study
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An Exploratory Study of the Interpersonal Meanings of President Xi’s New Year Speech Based on Appraisal Theory
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作者 LIN Hanzhao 《Cultural and Religious Studies》 2023年第2期84-90,共7页
The research examines President Xi’s 2021 New Year speech with research questions centering around its abundant interpersonal meanings.Through qualitative content analysis,the research finds that it is typical for Ch... The research examines President Xi’s 2021 New Year speech with research questions centering around its abundant interpersonal meanings.Through qualitative content analysis,the research finds that it is typical for Chinese president to frequently use judgment and appreciation resources in reviewing the past year.Even in the face of the pandemic and natural disasters,the overall emotions of the speech remain positive,which corresponds to the forward-looking feature of New Year speech.Significance of the study abounds and future research can investigate how COVID-19 impacts the ideologies conveyed through political leaders’speeches through a comparative lens and how to produce more understandings that can help dismantle stereotypes and discrimination hidden in reports about COVID-19 by using Appraisal Theory critically,systematically,and comprehensively. 展开更多
关键词 Political discourse New Year speech Appraisal Theory Interpersonal meanings COVID-19 pandemic
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How to Reproduce the Meaning of the Prose Accurately 被引量:1
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作者 王芳 《海外英语》 2016年第19期149-150,共2页
The essence of prose lies in expressing meaning and feeling of the prose, describing things and reasoning in real,plain and direct way, which is referred as its natural character. What the prose requires is to strive ... The essence of prose lies in expressing meaning and feeling of the prose, describing things and reasoning in real,plain and direct way, which is referred as its natural character. What the prose requires is to strive to make equivalence in the meaning, forms, taste, style and other aspects with the original text. What the prose express is not only the thematic meaning but also the stylistic meaning, in other words, the meaning that was contained in the content and forms. Hilaire Belloc, a famous prolific writer and historian, have formulated the six principles in translation of prose, in which he believes that the essence of translating is the resurrection of an alien thing in a native body. 展开更多
关键词 reproduce the meaning thematic meaning stylistic meaning CONTENT FORMS
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Symbolic Meanings of “Rose” in A Rose for Emily 被引量:1
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作者 夏祖贵 《英语广场(学术研究)》 2012年第8期42-45,共4页
A Rose for Emily is one of William Faulkner's most famous short stories.Through the representing of patriarchy influence on Emily,Faulkner shows his readers Emily's tragic life.From the diverse meanings of the... A Rose for Emily is one of William Faulkner's most famous short stories.Through the representing of patriarchy influence on Emily,Faulkner shows his readers Emily's tragic life.From the diverse meanings of the "Rose" to the debated themes,this story has been discussed before.This paper tries to analyze the three stages of Emily's struggle for love in order to represent the symbolism of the "Rose" from the perspective of feminism.It also represents the root of Emily's tragedy and the sympathy for the tragic fate of the Southern women. 展开更多
关键词 A ROSE for EMILY SYMBOLIC meaningS PATRIARCHY FEMINISM
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Meaning and the Theory of Speech Acts
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作者 孙丽 吴小梅 《语言与文化研究》 2008年第2期43-46,共4页
According to J.L.Austin and J.R.Searle Speech Act Theory,many actions can actually be performed with words that is to say an important part of the meaning of an utterance is what that utterance does.Language is not on... According to J.L.Austin and J.R.Searle Speech Act Theory,many actions can actually be performed with words that is to say an important part of the meaning of an utterance is what that utterance does.Language is not only used to inform or describe things,it is often used to "do things".The utterances are of three kinds of acts:Locutionary Act,Illocutionary Act,and Perlocutionary Act which are performed simultaneously.Through the study,we see that speech can be far beyond the level of language system. 展开更多
关键词 utterance ACT meaning
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Cultural Context and Associative Meaning of Words in Cross-culture Communication
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作者 吴玉侠 董艇舰 《英语广场(学术研究)》 2014年第12期132-133,共2页
Language is the vehicle of culture, vocabulary is the most active part of a language. This article compares and analyses the relationship of cultural context and the associative meaning of words in three aspects—asso... Language is the vehicle of culture, vocabulary is the most active part of a language. This article compares and analyses the relationship of cultural context and the associative meaning of words in three aspects—associative meaning overlap, associative meaning mismatch and associative meaning gap, revealing its importance in the cross-cultural communication. 展开更多
关键词 associative meaning cultural context CROSS-CULTURE
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Translating Means Translating Meaning
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作者 李海燕 《内蒙古大学学报(哲学社会科学版)》 CSSCI 2000年第S1期170-173,共4页
美国著名翻译理论家尤金·奈达说 :“翻译即译意 (Translating m eans translating m eaning)。”就实质而言 ,翻译即译意。就是把一种语言表达的意义用另一种语言表达出来。翻译分理解与表达两个步骤。理解是翻译的基础 ,表达直接... 美国著名翻译理论家尤金·奈达说 :“翻译即译意 (Translating m eans translating m eaning)。”就实质而言 ,翻译即译意。就是把一种语言表达的意义用另一种语言表达出来。翻译分理解与表达两个步骤。理解是翻译的基础 ,表达直接决定译文的成败与优劣 。 展开更多
关键词 TRANSLATING meaning UNDERSTANDING EXPRESSION
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Associative Meanings of Colors in Chinese and English Cultures
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作者 杨楠 王晓玲 李海丽 《海外英语》 2011年第3X期164-166,共3页
Colors are endowed into many different associative meanings by different peoples and countries under the various cultural backgrounds and people make it express testimonial and depreciated meaning. There is not only t... Colors are endowed into many different associative meanings by different peoples and countries under the various cultural backgrounds and people make it express testimonial and depreciated meaning. There is not only the same aspect, but also the differences. Moreover, some factors such as geographical environment, public sentiment custom, thinking mode, religious belief, and national psychology also influence it. Each kind of color is regarded the difference for every nation's person. This article analyzes and investigates the associative meaning of the color in the Chinese and English cultures. And then it will let the reader learn well and more the associative meaning under the different cultural background. 展开更多
关键词 ASSOCIATIVE meaningS COLORS CULTURES
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On the Meaning of the Number SEVEN in the Eastern and Western Culture
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作者 涂朝莲 陈坤 《海外英语》 2011年第4X期276-276,284,共2页
This paper interprets the connotation,denotation and the symbolic meaning of SEVEN from the perspective of semiotics.The number SEVEN means samsara,destiny,reincarnation,the ending and a brand new beginning,satisfacti... This paper interprets the connotation,denotation and the symbolic meaning of SEVEN from the perspective of semiotics.The number SEVEN means samsara,destiny,reincarnation,the ending and a brand new beginning,satisfaction after a lot of suffering in the East.While,in the West,besides these,it refers to the magic and holy power of the God,mystery,completeness and perfection,occult,happiness and luck. 展开更多
关键词 the NUMBER SEVEN CULTURE meaning numerology SEMIOTICS
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The Role of Context in Interpreting Word Meaning
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作者 孙晓燕 刘红梅 《科技信息》 2009年第1期239-,共1页
Meaning is a central topic in semantics,but it exists in context.Context plays an important role in interpreting word meaning. It will be analyzed as follows:(1) Context determines the referents of deictic words;(2) C... Meaning is a central topic in semantics,but it exists in context.Context plays an important role in interpreting word meaning. It will be analyzed as follows:(1) Context determines the referents of deictic words;(2) Context eliminates word ambiguity;(3) Context provides clues for interference of word meaning. 展开更多
关键词 meaning CONTEXT referents AMBIGUITY HYPONYMY
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A Broken Dream——An Analysis of the Symbolic Meanings in The Glass Menagerie
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作者 张敬双 《语言与文化研究》 2008年第1期37-41,共5页
The Glass Menagerie which is written by Tennessee Williams got a great success in Chicago when it was produced in the year 1944.It told us a story happened in an extraordinary family.Each member in the family got thei... The Glass Menagerie which is written by Tennessee Williams got a great success in Chicago when it was produced in the year 1944.It told us a story happened in an extraordinary family.Each member in the family got their own defects in the personalities.Therefore,it resulted in the tragic ending.Here,the author will concentrate on the symbolic meanings used in the drama. 展开更多
关键词 SYMBOLIC meaningS UNICORN Laura AMANDA TOM The GLA
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The Impact of Cultural Context on Metaphorical Meaning in English and Chinese
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作者 韦孟芬 《海外英语》 2015年第6期3-5,共3页
Metaphor is a phenomenon of language use which is the most active and most able to reflect the cultural factor. Cultural context has a restrictive effect on the metaphorical meaning. Therefore, the understanding and u... Metaphor is a phenomenon of language use which is the most active and most able to reflect the cultural factor. Cultural context has a restrictive effect on the metaphorical meaning. Therefore, the understanding and use of metaphor must not be divorced from the underlying cultural context. This paper analyzes similarities and dissimilarities of metaphorical meaning and images in English and Chinese from the perspective of cultural context. The research of metaphor of cultural context would enable us to better understand metaphor and have a successful communication. 展开更多
关键词 CULTURAL CONTEXT METAPHORICAL meaning image impact SIMILARITIES dissimilarities
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A Brief Analysis of Ambiguity of Words' Meaning in Translation
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作者 杨柳 《海外英语》 2016年第7期140-141,共2页
As you can see from the title,we try to provide a brief analysis of ambiguity of words' meaning in translation practice,namely,what is ambiguity of a meaning of a word and how it is caused,and how it affects trans... As you can see from the title,we try to provide a brief analysis of ambiguity of words' meaning in translation practice,namely,what is ambiguity of a meaning of a word and how it is caused,and how it affects translation.What effective methods are available to help us achieve a successful translation? Although a perfect solution for the problems presented by the ambiguity of words' meaning is difficult to find,we try to do what it can to contribute to the solution and draw people's attention to those problems. 展开更多
关键词 AMBIGUITY meaning of WORDS TRANSLATION
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An Integration of Meaning-Focused and Form-Focused Approach in EFL Reading and Writing——a Conceptual Inquiry and Experiment
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作者 王智杰 《海外英语》 2017年第22期247-248,250,共3页
Whether to adopt the meaning-oriented or form-oriented approach in EFL teaching has been in hot academic debate in the past decades. This paper investigates the literature contribution on these two methods, attempts a... Whether to adopt the meaning-oriented or form-oriented approach in EFL teaching has been in hot academic debate in the past decades. This paper investigates the literature contribution on these two methods, attempts an integration of the two,and introduces a teaching experiment of EFL reading and writing at China Agricultural University. 展开更多
关键词 INTEGRATION meaning FORM College English Reading and Writing
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On How to Guess Meanings of Unknown Words in Reading Materials the Importance of Context
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作者 胡燕 《海外英语》 2013年第10X期54-55,共2页
While reading plays a very important role in English study, many English language learners find it very difficult to fully comprehend some reading materials on account of many unknown words in them. This essay mainly ... While reading plays a very important role in English study, many English language learners find it very difficult to fully comprehend some reading materials on account of many unknown words in them. This essay mainly discusses one technique of guessing meanings of new words according to context clues, thus emphasizing the importance of context. 展开更多
关键词 meaningS of UNKNOWN WORDS CONTEXT CLUES reading ma
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A Brief Analysis of The Holy Bible's Impact on the Connotative Meanings of Color Terms and their Applications in Literatures
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作者 赵妮莎 《海外英语》 2012年第1X期274-276,281,共4页
The Holy Bible,as one of major sources of Western Culture,has a great influence on the Christian culture and Christian thoughts.Because language is a carrier of culture,the English study will be water without a source... The Holy Bible,as one of major sources of Western Culture,has a great influence on the Christian culture and Christian thoughts.Because language is a carrier of culture,the English study will be water without a source and a tree without roots if we ignore The Holy Bible which is the core of Christianity.To study English demands not only grammar and vocabulary,but also the culture behind the language.A brief analysis of connotative meanings of color terms,which are influenced by The Holy Bible and applied in literatures,will be given,in order to offer some help to English learners to know the connotations of color terms better,to understand literatures more profoundly and to have a general feeling about the impact which The Holy Bible has on language. 展开更多
关键词 The Holy Bible COLOR TERMS connotative meaningS LI
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