Detoxification of chlorinated organic compounds via reaction with nickel/iron powder was implemented in aqueous solution. Compared to iron, nickel/iron bimetallic powder had higher hydrodechlorination activities for b...Detoxification of chlorinated organic compounds via reaction with nickel/iron powder was implemented in aqueous solution. Compared to iron, nickel/iron bimetallic powder had higher hydrodechlorination activities for both atrazine (ATR) and p-chlorophenol (pCP); nickel/iron (2.96%, w/w) was shown to have the largest specific surface area and the optimum proportion for the dechlorination of both ATR and pCP. Electrochemical measurements showed that the adsorbed hydrogen atom on the nickel must have been the dominant reductive agent for the dechlorination of both ATR andpCP in this system.展开更多
Several languages use the Arabic alphabets and Arabic scripts present challenges because the letter shape is context sensitive. For the past three decades, there has been a mounting interest among researchers in this ...Several languages use the Arabic alphabets and Arabic scripts present challenges because the letter shape is context sensitive. For the past three decades, there has been a mounting interest among researchers in this problem. In this paper we present an Arabic Character Recognition system and review the theory behind the Arabic recognition system, the characteristics of Arabic writing, the sequence steps of recognizing Arabic text. These steps are separately discussed, and previous research work on each step is reviewed. Also in this paper we give some samples of Arabic fonts.展开更多
There has been increasing research in developing offline web applications. This paper concentrates on developing a new methodology for the online assessment web applications that could be used while offline. It is imp...There has been increasing research in developing offline web applications. This paper concentrates on developing a new methodology for the online assessment web applications that could be used while offline. It is important to retrieve the critical data collected during an examination without a provision of a backup mechanism. There is a need for an assessment system that can adapt to work uninterruptedly and without loss of critical data while there is intermittent intemet discontinuity. This paper describes architecture and implementation of online assessment system with offline capabilities. Online assessment system with offline capabilities will not interrupt examinee＇s experience while appearing for an assessment test if intemet connection is not available. A development methodology is designed and a compliant framework is implemented to enhance online assessment system with offline capabilities.展开更多
Objective:To systematically evaluate the impact of acupuncture on exercise-induced fatigue(EIF).Methods:Scopus,Springer Link,Web of Science,PubMed,Cochrane Library,China National Knowledge Infrastructure(CNKI),Wanfang...Objective:To systematically evaluate the impact of acupuncture on exercise-induced fatigue(EIF).Methods:Scopus,Springer Link,Web of Science,PubMed,Cochrane Library,China National Knowledge Infrastructure(CNKI),Wanfang Academic Journal Full-text Database(Wanfang),Chongqing VIP Database(CQVIP),and China Biology Medicine Disc(CBM)were systematically searched to identify randomized controlled trials(RCTs)studying acupuncture treatment of EIF from the inception till August 2020.The risk of bias in the included studies was assessed using the Cochrane handbook.RevMan 5.3 was used to conduct statistical analysis on the extracted data.Results:A total of 11 RCTs were included for meta-analysis,involving 531 patients.It was revealed that acupuncture produced more significant effects in alleviating subjective fatigue[standardized mean difference(SMD)=-3.08,95%confidence interval(CI)(-4.35,-1.81),P<0.001],increasing the hemoglobin content[weighted mean difference(WMD)=3.89,95%CI(1.37,6.42),P=0.003],reducing the lactate dehydrogenase content[WMD=-10.63,95%CI(-17.67,-3.59),P=0.003],reducing the blood lactic acid content[SMD=-2.65,95%CI(-4.47,-0.83),P=0.004],and down-regulating the levels of serum creatine kinase[SMD=-0.79,95%CI(-1.10,-0.48),P<0.001]and blood urea nitrogen[WMD=-1.47,95%CI(-1.84,-1.11),P<0.001]than the control groups.Conclusion:Based on the existing evidence,acupuncture can be recognized as effective in improving EIF and is worthy of promotion in clinical settings.展开更多
基金Project (No. 30270767) supported by the National Natural Science Foundation of China
文摘Detoxification of chlorinated organic compounds via reaction with nickel/iron powder was implemented in aqueous solution. Compared to iron, nickel/iron bimetallic powder had higher hydrodechlorination activities for both atrazine (ATR) and p-chlorophenol (pCP); nickel/iron (2.96%, w/w) was shown to have the largest specific surface area and the optimum proportion for the dechlorination of both ATR and pCP. Electrochemical measurements showed that the adsorbed hydrogen atom on the nickel must have been the dominant reductive agent for the dechlorination of both ATR andpCP in this system.
文摘Several languages use the Arabic alphabets and Arabic scripts present challenges because the letter shape is context sensitive. For the past three decades, there has been a mounting interest among researchers in this problem. In this paper we present an Arabic Character Recognition system and review the theory behind the Arabic recognition system, the characteristics of Arabic writing, the sequence steps of recognizing Arabic text. These steps are separately discussed, and previous research work on each step is reviewed. Also in this paper we give some samples of Arabic fonts.
文摘There has been increasing research in developing offline web applications. This paper concentrates on developing a new methodology for the online assessment web applications that could be used while offline. It is important to retrieve the critical data collected during an examination without a provision of a backup mechanism. There is a need for an assessment system that can adapt to work uninterruptedly and without loss of critical data while there is intermittent intemet discontinuity. This paper describes architecture and implementation of online assessment system with offline capabilities. Online assessment system with offline capabilities will not interrupt examinee＇s experience while appearing for an assessment test if intemet connection is not available. A development methodology is designed and a compliant framework is implemented to enhance online assessment system with offline capabilities.
文摘Objective:To systematically evaluate the impact of acupuncture on exercise-induced fatigue(EIF).Methods:Scopus,Springer Link,Web of Science,PubMed,Cochrane Library,China National Knowledge Infrastructure(CNKI),Wanfang Academic Journal Full-text Database(Wanfang),Chongqing VIP Database(CQVIP),and China Biology Medicine Disc(CBM)were systematically searched to identify randomized controlled trials(RCTs)studying acupuncture treatment of EIF from the inception till August 2020.The risk of bias in the included studies was assessed using the Cochrane handbook.RevMan 5.3 was used to conduct statistical analysis on the extracted data.Results:A total of 11 RCTs were included for meta-analysis,involving 531 patients.It was revealed that acupuncture produced more significant effects in alleviating subjective fatigue[standardized mean difference(SMD)=-3.08,95%confidence interval(CI)(-4.35,-1.81),P<0.001],increasing the hemoglobin content[weighted mean difference(WMD)=3.89,95%CI(1.37,6.42),P=0.003],reducing the lactate dehydrogenase content[WMD=-10.63,95%CI(-17.67,-3.59),P=0.003],reducing the blood lactic acid content[SMD=-2.65,95%CI(-4.47,-0.83),P=0.004],and down-regulating the levels of serum creatine kinase[SMD=-0.79,95%CI(-1.10,-0.48),P<0.001]and blood urea nitrogen[WMD=-1.47,95%CI(-1.84,-1.11),P<0.001]than the control groups.Conclusion:Based on the existing evidence,acupuncture can be recognized as effective in improving EIF and is worthy of promotion in clinical settings.
