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Reinforcement learning based edge computing in B5G

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Digital Communications and Networks 2024年第1期10卷 1-6页

作者： Jiachen Yang yiwen sun Yutian Lei Zhuo Zhang Yang Li Yongjun Bao Zhihan Lv School of Electrical and Information Engineering Tianjin UniversityTianjin300072China Technology and Data Center ***Beijing100176China School of Data Science and Software Engineering Qingdao UniversityQingdao266101China

The development of communication technology will promote the application of Internet of Things,and Beyond 5G will become a new technology *** the same time,Beyond 5G will become one of the important supports for the development of edge computing *** paper proposes a communication task allocation algorithm based on deep reinforcement learning for vehicle-to-pedestrian communication scenarios in edge *** trial and error learning of agent,the optimal spectrum and power can be determined for transmission without global information,so as to balance the communication between vehicle-to-pedestrian and *** results show that the agent can effectively improve vehicle-to-infrastructure communication rate as well as meeting the delay constraints on the vehicle-to-pedestrian link.

关键词： Reinforcement learning Edge computing Beyond 5G Vehicle-to-pedestrian

Linking the past and present to predict the distribution of Asian crested ibis(Nipponia nippon)under global changes

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Integrative Zoology 2022年第6期17卷 1095-1105页

作者： Fangyuan YU yiwen sun Tiejun WANG Andrew KSKIDMORE Changqing DING Xinping YE School of Geographical Sciences and Remote Sensing Guangzhou UniversityGuangzhouChina Department of Natural Resources Faculty of Geo-Information Science and Earth ObservationUniversity of TwenteEnschedeThe Netherlands Department of Environmental Science New South WalesMacquarie UniversityMacquarieAustralia College of Nature Conservation Beijing Forestry UniversityBeijingChina College of Life Sciences Shaanxi Normal UniversityXi’anChina

Understanding how species’ecological niches adapt to environmental changes through time is critical for predicting the effect of future global change on endangered *** few studies have incorporated knowledge of past niche shifting into the assessment of species’future fate in a changing *** this study,we integrated the ecological niche dynamics into the species distribution modeling of the Asian crested ibis(Nipponia nippon)in East ***ﬁcally,we compared historical and present ecological niches of crested ibis in four-dimensional environmental space based on species occurrence and environmental *** then employed a multi-temporal ecological niche model to estimate the potential geographical distribution of crested ibis under future climate and land-use *** results show that crested ibis retained similar though not identical ecological niches over *** to the historical baseline range,the current suitable habitat for crested ibis has been reduced by 39.6%.The effects of human activity outweigh those of climate change regarding the distribution of crested *** conclude that the ecological niche of crested ibis was tended to be conservative,and future potentially suitable habitat may encounter northeastward and northwestward shift,and possibly expand by 18.7%referred to the historical ***ﬁndings of our study are of clear importance for the conservation and successful reintroduction of crested ibis in East Asia.

关键词： biogeography climate change ecological niche land-use change niche conservatism

IMPACT OF DYNAMICAL HYDRATION SHELL AROUND HA PROTEIN ON NONLINEAR CONCENTRATION DEPENDENT T-RAYS ABSORPTION

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Journal of Innovative Optical Health Sciences 2013年第4期6卷 77-83页

作者： yiwen sun TIANFU WANG SIPING CHEN JIAN ZUO ZHENWEI ZHANG CUNLIN ZHANG National-Regional Key Technology Engineering Laboratory for Medical Ultrasound Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging Department of Biomedical Engineering School of Medicine Shenzhen University Shenzhen 518060P.R.China Department of Physics Capital Normal University Beijing 100037P.R.China

T rays is sensitive to covalently cross linked proteins and can be used to probe unique dynamic properties of water surrounding a *** this paper,we demonstrate the unique abeorption properties of the dynamic hydnation shells deternined by hemagglutinin(HA)protein in ter-ahertz *** study the changes arising fom diferent concentrations in detail and show that nonlinear absorption coefficient is induced by the dynamic hydration *** binary and ternary component model were used to interpret the nonlinearity absorption behaviors and predict the thickness of the hydration shells around the HA protein in aquous phase.

关键词： T-rays absorption officient hemagglutinin hydration shell

Angiogenesis in hepatocellular carcinoma:mechanisms and anti-angiogenic therapies

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Cancer Biology & Medicine 2023年第1期20卷 25-43页

作者： Changyu Yao Shilun Wu Jian Kong yiwen sun Yannan Bai Ruhang Zhu Zhuxin Li Wenbing sun Lemin Zheng Department of Hepatobiliary Surgery Beijing Chaoyang HospitalCapital Medical UniversityBeijing 100043China Department of Pathology Peking University People's HospitalPeking UniversityBeijing 100044China Department of Hepatobiliary Pancreatic Surgery Shengli Clinical Medical College of Fujian Medical UniversityFujian Provincial HospitalFuzhou 350001China The Institute of Cardiovascular Sciences and Institute of Systems Biomedicine School of Basic Medical SciencesKey Laboratory of Molecular Cardiovascular Sciences of Ministry of EducationHealth Sciences CenterPeking UniversityBeijing 100083China Beijing Tiantan Hospital China National Clinical Research Center of Neurological DiseasesAdvanced Innovation Center for Human Brain ProtectionCapital Medical UniversityBeijing 100050China

Hepatocellular carcinoma(HCC)is the fourth leading cause of cancer-associated death ***,the process of formation of new blood vessels,is required for cancer cells to obtain nutrients and *** is a typical hypervascular solid tumor with an aberrant vascular network and angiogenesis that contribute to its growth,progression,invasion,and *** anti-angiogenic therapies target mainly tyrosine kinases,vascular endothelial growth factor receptor(VEGFR),and plateletderived growth factor receptor(PDGFR),and are considered effective strategies for HCC,particularly advanced ***,because the survival benefits conferred by these anti-angiogenic therapies are modest,new anti-angiogenic targets must be *** recent studies have determined the underlying molecular mechanisms,including pro-angiogenic factors secreted by HCC cells,the tumor microenvironment,and cancer stem *** this review,we summarize the roles of pro-angiogenic factors;the involvement of endothelial cells,hepatic stellate cells,tumor-associated macrophages,and tumor-associated neutrophils present in the tumor microenvironment;and the regulatory influence of cancer stem cells on angiogenesis in ***,we discuss some of the clinically approved anti-angiogenic therapies and potential novel therapeutic targets for angiogenesis in HCC.A better understanding of the mechanisms underlying angiogenesis may lead to the development of more optimized anti-angiogenic treatment modalities for HCC.

关键词： Angiogenesis hepatocellular carcinoma pro-angiogenic factors tumor microenvironment anti-angiogenic therapy

RECENT DEVELOPMENTS OF TERAHERTZ TECHNOLOGY IN BIOMEDICINE

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Journal of Innovative Optical Health Sciences 2008年第1期1卷 29-44页

作者： EMMA PICKWELL-MACPHERSON SHENGYANG HUANG KANIS WAI CHI KAN yiwen sun YUAN TING ZHANG Joint Research Centre for Biomedical Engineering Department of Electronic Engineering The Chinese University of Hong Kong†Institute of Biomedical and Health Engineering Shenzhen Institute of Advanced Technology Chinese Academy of Sciences China Key Laboratory for Biomedical Informatics and Health Engineering Chinese Academy of Science China

Terahertz technology is continually evolving and much progress has been made in recent *** new applications are being discovered and new ways to implement terahertz imaging *** this review,we limit our discussion to biomedical applications of terahertz imaging such as cancer detection,genetic sensing and molecular *** discussion of the development of new terahertz techniques is also focused on those that may accelerate the progress of terahertz imaging and spectroscopy in biomedicine.

关键词： spectroscopy. terahertz limit

Transcriptome and metabolome analysis reveal that oral secretions from Helicoverpa armigera and Spodoptera litura influence wound-induced host response in cotton

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The Crop Journal 2020年第6期8卷 929-942页

作者： Huan Si Hongling Liu yiwen sun Zhongping Xu Sijia Liang Bo Li Xiao Ding Jianying Li Qiongqiong Wang Lin sun Xianlong Zhang Shuangxia Jin National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural UniversityWuhan 430070HubeiChina

Cotton(Gossypium hirsutum)is an important fiber crop *** attack causes cotton yield and quality ***,little is known about the mechanism of cotton response to insect *** simulated insect feeding by applying insect oral secretions(OS)to wounds,and combined transcriptome and metabolome analysis to investigate how OS from two major pest species(Helicoverpa armigera and Spodoptera litura)affect cotton defense *** found that respectively 12,668 and 13,379 genes were differentially expressed in comparison with wounding *** addition of OS,the jasmonic acid signaling pathway was rapidly and strongly induced,whereas genes involved in salicylic acid biosynthesis were *** constructing a coexpression gene network,we identified a hub gene encoding a leucine-rich repeat receptor kinase that may play an important role in early signal recognition and *** from the two insect species altered the abundance of flavonoid-related compounds in different *** remained in lower concentration after OS application than after wounding alone,suggesting a suppressive effect of OS on cotton defense *** study illustrated transcriptional and metabolic changes of cotton in responding to OS from two chewing insect species,identified potential key response genes,and revealed evidence for OS inhibition of wounding-induced cotton defense response.

关键词： Oral secretions Helicoverpa armigera Spodoptera litura Cotton Host plant defense

Analysis of Psychological Strategy on Initiative Advertisement Design

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Analysis of Psychological Strategy on Initiative Advertiseme...

Terahertz topological photonic waveguide switch for on-chip communication

第三届国际机械工程与力学会议

作者： yiwen sun Xun WU Department of Art Design in School of Mechanical Engineering Nanjing University of Science and Technology Department of Design Engineering in College of Mechanical and Electrical Engineering Nanjing University of Aeronautics and Astronautics

With the diversified development of communication channels and multi-media in recent years, the classification and connotation of advertisements （AD） are upgrading as well. To strengthen the impact of advertisements on customers, it is essential to take customers as the core through the application of psychological strategy and emotion-image visualization in ad design. Based on customer-oriented methodologies, this article focuses on the strategy for realizing Ad-driven sales promotion. In this paper, the authors present four types of advertising design strategies: needs-oriented strategy, new and unconventional strategy, strategy of emotional appeals, and strategy of breaking the consumers’ psychological line of defense. In a word, the use of these four types of psychological strategies can lead to good advertisement design.

关键词： Initiative Advertisements Design Consumer Physiological Strategy.

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Photonics Research 2022年第4期10卷 1090-1096页

作者： Xudong Liu Jialiang Huang Hao Chen Zhengfang Qian JlNGWEN Ma Xiankai sun Shuting Fan yiwen sun Department of Biomedical Engineering School of MedicineShenzhen UniversityShenzhen 518060China Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Physics and Optoelectronics EngineeringShenzhen UniversityShenzhen 518060China Department of Electronic Engineering The Chinese University of Hong KongHong KongChina

Terahertz(THz)topological photonic structures are promising for last-centimeter communication in intra/interchip communication systems because they support bit-error-free THz signal transmission with topological *** and dynamically tunable THz topological photonic components have not yet been experimentally ***,we experimentally demonstrate a THz topological switch(270-290 GHz)based on a valley Hall photonic crystal structured high-resistivity silicon substrate,in which the THz waves can be dynamically turned on/off by an external 447 nm continuous-wave *** device exhibited an on/off ratio of 19 dB under a pumping light intensity of 240 mW/mm^(2).The 3 dB switching bandwidth was〜60 kHz.

关键词： communication waveguide tunable

遵循传统:克服理解相对主义倾向的一个历史尝试

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中南大学学报（社会科学版） 2019年第1期25卷 41-47页

作者：孙义文华东师范大学马克思主义学院上海200241

理解的相对主义倾向,是理解理论一直以来所极力避免的。将正确的理解建立在坚守传统的基础之上,是特伦托会议的一个积极的尝试。理解活动从根本上说,是不断地回到传统,筹划解决传统问题的回溯式前行。而传统却完全不能保证可以让人们获... 详细信息

理解的相对主义倾向,是理解理论一直以来所极力避免的。将正确的理解建立在坚守传统的基础之上,是特伦托会议的一个积极的尝试。理解活动从根本上说,是不断地回到传统,筹划解决传统问题的回溯式前行。而传统却完全不能保证可以让人们获得正确的理解。虽然传统必然为理解活动提供基础,但传统与文本之间的张力,却是诱发理解的相对主义倾向的一个重要因素。正是与文本之间存在必然张力的传统,非但没有阻碍我们进行理解,反而使理解活动得以不断扬弃、超越自身,从而不断发展。

关键词：正确的理解传统文本相对主义