Folklore research entails field trips, serve as secondary role. Writing of title, abstract and while textual study and circumstantial investigation merely keywords for folklore papers differs from that of other types ...Folklore research entails field trips, serve as secondary role. Writing of title, abstract and while textual study and circumstantial investigation merely keywords for folklore papers differs from that of other types of articles. Proceeding from writing strategies and linguistic features, the authors intend to share their experience with fellow researchers.展开更多
[Objective] This paper aimed to solve the problems existing in commercial layers breeding. [Method] Key points of culture were summarized. [ Result] The timing of purchasing chickenens, comprehensive epidemic preventi...[Objective] This paper aimed to solve the problems existing in commercial layers breeding. [Method] Key points of culture were summarized. [ Result] The timing of purchasing chickenens, comprehensive epidemic prevention, decisively cleaning out predicted low-yield chickenen flock or layers, chickenens quality, control of chickenens＇ breeding skills, sufficient drinking water, feed quality, timely elimination of layer flock, correctly adjusting production rhythm, proper scale and other aspects should be paid attention to. [Condusion] Breeding commercial layers could get significant economic benefits through above measures.展开更多
In the government work report for Two Sessions 2019, key words about E-commerce and internet were mentioned lots of times. This included terms such as Internet+, cross-border E-commerce,industrial internet, digital ec...In the government work report for Two Sessions 2019, key words about E-commerce and internet were mentioned lots of times. This included terms such as Internet+, cross-border E-commerce,industrial internet, digital economy,sharing economy, online and offline consumption, Internet+education and soon.Keywords No.1:Internet+Work Report:1. Internet+was advanced across the board and new technologies and models were used to transform traditional industries. 2. We will speed up efforts to pursue Internet+in all industries and sectors.展开更多
Titles、Abstracts and Key Words(1 th) Lu Guoyao A Brief Comment on "Documentary Linguistics"Abstract: Two thousand and five hundred years ago, Confucius attached great importance to "Document". We ...Titles、Abstracts and Key Words(1 th) Lu Guoyao A Brief Comment on "Documentary Linguistics"Abstract: Two thousand and five hundred years ago, Confucius attached great importance to "Document". We suggest that knowledge that regards both literature and oral material as the major resources should be respected. These knowledge interrelates and completes each other.展开更多
Physical-layer secret key generation(PSKG)provides a lightweight way for group key(GK)sharing between wireless users in large-scale wireless networks.However,most of the existing works in this field consider only grou...Physical-layer secret key generation(PSKG)provides a lightweight way for group key(GK)sharing between wireless users in large-scale wireless networks.However,most of the existing works in this field consider only group communication.For a commonly dual-task scenario,where both GK and pairwise key(PK)are required,traditional methods are less suitable for direct extension.For the first time,we discover a security issue with traditional methods in dual-task scenarios,which has not previously been recognized.We propose an innovative segment-based key generation method to solve this security issue.We do not directly use PK exclusively to negotiate the GK as traditional methods.Instead,we generate GK and PK separately through segmentation which is the first solution to meet dual-task.We also perform security and rate analysis.It is demonstrated that our method is effective in solving this security issue from an information-theoretic perspective.The rate results of simulation are also consistent with the our rate derivation.展开更多
Secret key generation(SKG)is a promising solution to the problem of wireless communications security.As the first step of SKG,channel probing affects it significantly.Although there have been some probing schemes,ther...Secret key generation(SKG)is a promising solution to the problem of wireless communications security.As the first step of SKG,channel probing affects it significantly.Although there have been some probing schemes,there is a lack of research on the optimization of the probing process.This study investigates how to optimize correlated parameters to maximize the SKG rate(SKGR)in the time-division duplex(TDD)mode.First,we build a probing model which includes the effects of transmitting power,the probing period,and the dimension of sample vectors.Based on the model,the analytical expression of the SKGR is given.Next,we formulate an optimization problem for maximizing the SKGR and give an algorithm to solve it.We conclude the SKGR monotonically increases as the transmitting power increases.Relevant mathematical proofs are given in this study.From the simulation results,increasing appropriately the probing period and the dimension of the sample vector could increase the SKGR dramatically compared to a yardstick,which indicates the importance of optimizing the parameters related to the channel probing phase.展开更多
expressions like ＂socialism with Chinese character- istics＂ and ＂comprehensively deepening reform？＂ Then help is at hand with a program launched in December to enable foreigners understand politi- cal and cultura...expressions like ＂socialism with Chinese character- istics＂ and ＂comprehensively deepening reform？＂ Then help is at hand with a program launched in December to enable foreigners understand politi- cal and cultural phrases,展开更多
文摘Folklore research entails field trips, serve as secondary role. Writing of title, abstract and while textual study and circumstantial investigation merely keywords for folklore papers differs from that of other types of articles. Proceeding from writing strategies and linguistic features, the authors intend to share their experience with fellow researchers.
基金supported by Qinhuangdao Science&Technology Support Program
文摘[Objective] This paper aimed to solve the problems existing in commercial layers breeding. [Method] Key points of culture were summarized. [ Result] The timing of purchasing chickenens, comprehensive epidemic prevention, decisively cleaning out predicted low-yield chickenen flock or layers, chickenens quality, control of chickenens＇ breeding skills, sufficient drinking water, feed quality, timely elimination of layer flock, correctly adjusting production rhythm, proper scale and other aspects should be paid attention to. [Condusion] Breeding commercial layers could get significant economic benefits through above measures.
文摘In the government work report for Two Sessions 2019, key words about E-commerce and internet were mentioned lots of times. This included terms such as Internet+, cross-border E-commerce,industrial internet, digital economy,sharing economy, online and offline consumption, Internet+education and soon.Keywords No.1:Internet+Work Report:1. Internet+was advanced across the board and new technologies and models were used to transform traditional industries. 2. We will speed up efforts to pursue Internet+in all industries and sectors.
文摘Titles、Abstracts and Key Words(1 th) Lu Guoyao A Brief Comment on "Documentary Linguistics"Abstract: Two thousand and five hundred years ago, Confucius attached great importance to "Document". We suggest that knowledge that regards both literature and oral material as the major resources should be respected. These knowledge interrelates and completes each other.
基金supported in part by the National Key R&D Program of China(No.2022YFB2902202)in part by the Fundamental Research Funds for the Central Universities(No.2242023K30034)+2 种基金in part by the National Natural Science Foundation of China(No.62171121,U22A2001),in part by the National Natural Science Foundation of China(No.62301144)in part by the National Natural Science Foundation of Jiangsu Province,China(No.BK20211160)in part by the Southeast University Startup Fund(No.4009012301)。
文摘Physical-layer secret key generation(PSKG)provides a lightweight way for group key(GK)sharing between wireless users in large-scale wireless networks.However,most of the existing works in this field consider only group communication.For a commonly dual-task scenario,where both GK and pairwise key(PK)are required,traditional methods are less suitable for direct extension.For the first time,we discover a security issue with traditional methods in dual-task scenarios,which has not previously been recognized.We propose an innovative segment-based key generation method to solve this security issue.We do not directly use PK exclusively to negotiate the GK as traditional methods.Instead,we generate GK and PK separately through segmentation which is the first solution to meet dual-task.We also perform security and rate analysis.It is demonstrated that our method is effective in solving this security issue from an information-theoretic perspective.The rate results of simulation are also consistent with the our rate derivation.
基金supported in part by the national natural science foundation of China (NSFC) under Grant61871193in part by the R&D Program of key science and technology fields in Guangdong province under Grant 2019B090912001in part by the Guangzhou Key Field R&D Program under Grant 202206030005
文摘Secret key generation(SKG)is a promising solution to the problem of wireless communications security.As the first step of SKG,channel probing affects it significantly.Although there have been some probing schemes,there is a lack of research on the optimization of the probing process.This study investigates how to optimize correlated parameters to maximize the SKG rate(SKGR)in the time-division duplex(TDD)mode.First,we build a probing model which includes the effects of transmitting power,the probing period,and the dimension of sample vectors.Based on the model,the analytical expression of the SKGR is given.Next,we formulate an optimization problem for maximizing the SKGR and give an algorithm to solve it.We conclude the SKGR monotonically increases as the transmitting power increases.Relevant mathematical proofs are given in this study.From the simulation results,increasing appropriately the probing period and the dimension of the sample vector could increase the SKGR dramatically compared to a yardstick,which indicates the importance of optimizing the parameters related to the channel probing phase.
文摘expressions like ＂socialism with Chinese character- istics＂ and ＂comprehensively deepening reform？＂ Then help is at hand with a program launched in December to enable foreigners understand politi- cal and cultural phrases,
