Led by four generations of leadership from late Prof.JIANG Sichang(academician,Chinese Academy of Engineering),Prof.YANG Weiyan(Honorary President,Division of Otolaryngology Head and Neck Surgery,Chinese Medical Assoc...Led by four generations of leadership from late Prof.JIANG Sichang(academician,Chinese Academy of Engineering),Prof.YANG Weiyan(Honorary President,Division of Otolaryngology Head and Neck Surgery,Chinese Medical Association),Prof.HAN Dongyi(President Elected,Division of Otolaryngology Head and Neck Surgery,Chinese Medical Association)to now Prof.YANG Shiming(President,Division of Otolaryngologists,展开更多
Introduction to HEC Harbin Electric Machinery Company Limited (HEC) is a pivotal company that produces large electric machinery and accessorial control equipment in China. The hydro units made by HEC have
In this paper, the authors present a novel mutual authentication and key agreement protocol based on the Number Theory Research Unit (NTRU) public key cryptography. The symmetric encryption, hash and “challenge-respo...In this paper, the authors present a novel mutual authentication and key agreement protocol based on the Number Theory Research Unit (NTRU) public key cryptography. The symmetric encryption, hash and “challenge-response” techniques were adopted to build their protocol. To implement the mutual authentication and session key agreement, the proposed protocol contains two stages: namely initial procedure and real execution stage. Since the lightweight NTRU public key cryptography is employed, their protocol can not only overcome the security flaws of secret-key based authentication protocols such as those used in Global System for Mobile Communications (GSM) and Universal Mobile Telecommunications System (UMTS), but also provide greater security and lower computational complexity in comparison with currently well-known public key based wireless authentication schemes such as Beller-Yacobi and M.Aydos protocols.展开更多
Background Currently, slightly more than 50% of bloodstream infections （BSIs） are hospital acquired. When these infections occur in patients in intensive care units, they are associated with a high mortality rate, a...Background Currently, slightly more than 50% of bloodstream infections （BSIs） are hospital acquired. When these infections occur in patients in intensive care units, they are associated with a high mortality rate, additional hospital days and excess hospital costs. Because of multifactor of nosocomial BSIs, measurements of control nosocomial BSIs are wide variety and lead to some confusion in practice. The aim of this study was to explore special way in accordance with self-hospital base on common principle. Methods In one ward of the Intensive Care Unit, Peking Union Medical College Hospital, at first, we divided the all operation about bloodstream way into three sections used as keypoints. By surveying keypoints respectively, some operation faults of blood way were discovered. For decreasing the mobidity of nosocomial BSIs, some intervention measurements were executed. The rate of nosocomial BSIs was analyzed by chi-square test. Results According to the statistics from January to June, we received and cured 618 patients in total; among them, there were 13 cases of nosocomial BSI and the average occurrence was 2.3 cases/month. After intervention measurements from July to December 2011, we received and cured 639 patients in total with seven cases of nosocomial BSI, and the average occurrence was 1.2 cases/month （P 〈0.05）. From January to April 2012, no nosocomial BSI occurred in the investigated ward. Conclusion Removing the operation faults of bloodstream way might decrease the nosocomial BSI rapidly and efficiently by utilizing a key point survey.展开更多
How to determine the weight value and how to determine the numbers of variables are tWo difficult questions for the inequality weight moving average forecasting model.Based n explanations of the concept of the weight ...How to determine the weight value and how to determine the numbers of variables are tWo difficult questions for the inequality weight moving average forecasting model.Based n explanations of the concept of the weight contribution rate and that of the key neural node,a new method by which the weight value and the variable number can be determined has been put forward in this paper,and reality-imitating experiments have been made to prove that by way of the neural network,the difficulties existed in the traditional prediction method can be solved and the predictive precision can be improved at the same time.展开更多
文摘Led by four generations of leadership from late Prof.JIANG Sichang(academician,Chinese Academy of Engineering),Prof.YANG Weiyan(Honorary President,Division of Otolaryngology Head and Neck Surgery,Chinese Medical Association),Prof.HAN Dongyi(President Elected,Division of Otolaryngology Head and Neck Surgery,Chinese Medical Association)to now Prof.YANG Shiming(President,Division of Otolaryngologists,
文摘Introduction to HEC Harbin Electric Machinery Company Limited (HEC) is a pivotal company that produces large electric machinery and accessorial control equipment in China. The hydro units made by HEC have
基金Project (No. 60372076) supported by the National Natural ScienceFoundation of China
文摘In this paper, the authors present a novel mutual authentication and key agreement protocol based on the Number Theory Research Unit (NTRU) public key cryptography. The symmetric encryption, hash and “challenge-response” techniques were adopted to build their protocol. To implement the mutual authentication and session key agreement, the proposed protocol contains two stages: namely initial procedure and real execution stage. Since the lightweight NTRU public key cryptography is employed, their protocol can not only overcome the security flaws of secret-key based authentication protocols such as those used in Global System for Mobile Communications (GSM) and Universal Mobile Telecommunications System (UMTS), but also provide greater security and lower computational complexity in comparison with currently well-known public key based wireless authentication schemes such as Beller-Yacobi and M.Aydos protocols.
文摘Background Currently, slightly more than 50% of bloodstream infections （BSIs） are hospital acquired. When these infections occur in patients in intensive care units, they are associated with a high mortality rate, additional hospital days and excess hospital costs. Because of multifactor of nosocomial BSIs, measurements of control nosocomial BSIs are wide variety and lead to some confusion in practice. The aim of this study was to explore special way in accordance with self-hospital base on common principle. Methods In one ward of the Intensive Care Unit, Peking Union Medical College Hospital, at first, we divided the all operation about bloodstream way into three sections used as keypoints. By surveying keypoints respectively, some operation faults of blood way were discovered. For decreasing the mobidity of nosocomial BSIs, some intervention measurements were executed. The rate of nosocomial BSIs was analyzed by chi-square test. Results According to the statistics from January to June, we received and cured 618 patients in total; among them, there were 13 cases of nosocomial BSI and the average occurrence was 2.3 cases/month. After intervention measurements from July to December 2011, we received and cured 639 patients in total with seven cases of nosocomial BSI, and the average occurrence was 1.2 cases/month （P 〈0.05）. From January to April 2012, no nosocomial BSI occurred in the investigated ward. Conclusion Removing the operation faults of bloodstream way might decrease the nosocomial BSI rapidly and efficiently by utilizing a key point survey.
文摘How to determine the weight value and how to determine the numbers of variables are tWo difficult questions for the inequality weight moving average forecasting model.Based n explanations of the concept of the weight contribution rate and that of the key neural node,a new method by which the weight value and the variable number can be determined has been put forward in this paper,and reality-imitating experiments have been made to prove that by way of the neural network,the difficulties existed in the traditional prediction method can be solved and the predictive precision can be improved at the same time.
