When the Grover＇ s original algorithm is applied to search an unordered database, the success probability decreases rapidly with the increase of marked items. Aiming at this problem, a general quantum search algorith...When the Grover＇ s original algorithm is applied to search an unordered database, the success probability decreases rapidly with the increase of marked items. Aiming at this problem, a general quantum search algorithm with small phase rotations is proposed. Several quantum search algorithms can be derived from this algorithm according to different phase rotations. When the size of phase rotations are fixed at 0. 01π, the success probability of at least 99. 99% can be obtained in 0（√N/M） iterations.展开更多
Forensic accounting gained importance due to increasing number of financial frauds and scams. This new area in accounting encompasses accounting, auditing, and investigative skills, thus emerged to detect frauds. They...Forensic accounting gained importance due to increasing number of financial frauds and scams. This new area in accounting encompasses accounting, auditing, and investigative skills, thus emerged to detect frauds. They involve themselves in different areas like employee-related frauds, settlement and arbitrations, etc.. A forensic accountant has a financial sixth sense. Despite the fact that forensic accounting can bridge the gap between conventional accounting and auditing, this profession has not been able to gain the needed momentum due to some hassles. This paper tries to shed light on the theoretical concept, nature, practice, need, role of forensic accounting in preventing fraud, and the practical difficulties faced by forensic accountants. The study is based on information collected from interviewing practicing forensic accounting in India during 2011-12. The paper was able to assess the importance and rising scope of forensic accounting as a job. It also understood the practical difficulties they faced like lack of organized databases in Indian scenario which makes it difficult to access all needed information. Expectation level of the clients is very high and at times even unreasonable. This paper fulfills an identified need to study the important rising field of forensic accounting in India.展开更多
Active databases react to stimulation, or event from inside or outside the system without user or application interference through Events Conditions Actions(ECA) rules (triggers). ECA rule is defined as: ON event IF c...Active databases react to stimulation, or event from inside or outside the system without user or application interference through Events Conditions Actions(ECA) rules (triggers). ECA rule is defined as: ON event IF condition THEN action, which means when an event happens, if the condition is satisfied then the corresponding action is executed. The nature of ECA rule makes it an appropriate means to model dynamic character of systems, as gained much studies during recent years. Traditional ECA rule is crisp, which means their events, condition (s) and action(s) are accurate. As indicate that ECA rules can only represent precise knowledge. But knowledge is usually fuzzy in engineering. A concept of fuzzy ECA rules characterized with fuzzy event, fuzzy condition and fuzzy action is proposed in this article.The realization avenues of fuzzy triggers are discussed. The work we have done blazes a way in representing approximate syntax in active database application systems. At last a case of 'overheating alarm' is given to illustrate the approach.展开更多
Since its installation on the International Space Station(ISS)in mid-May 2011,the Alpha Magnetic Spectrometer(AMS)has spent over two years on orbit,fully operational,collecting an enormous amount of data including the...Since its installation on the International Space Station(ISS)in mid-May 2011,the Alpha Magnetic Spectrometer(AMS)has spent over two years on orbit,fully operational,collecting an enormous amount of data including the temperatures from the on-board 1118 sensors for thermal control.A large database is continuously updated and analyzed to understand the thermal behavior of the experiment in the space environment and its interaction with the ISS.This paper specifies the design,building,analysis and testing of the thermal control system and its various components for an overview of the AMS thermal control system and its space environment.Also given are some examples of analysis and correlation of the space environmental and ISS parameters with the thermal behaviors of various AMS components.展开更多
基金Supported by National Natural Science Foundation of China （ No. 60773065 ）.
文摘When the Grover＇ s original algorithm is applied to search an unordered database, the success probability decreases rapidly with the increase of marked items. Aiming at this problem, a general quantum search algorithm with small phase rotations is proposed. Several quantum search algorithms can be derived from this algorithm according to different phase rotations. When the size of phase rotations are fixed at 0. 01π, the success probability of at least 99. 99% can be obtained in 0（√N/M） iterations.
文摘Forensic accounting gained importance due to increasing number of financial frauds and scams. This new area in accounting encompasses accounting, auditing, and investigative skills, thus emerged to detect frauds. They involve themselves in different areas like employee-related frauds, settlement and arbitrations, etc.. A forensic accountant has a financial sixth sense. Despite the fact that forensic accounting can bridge the gap between conventional accounting and auditing, this profession has not been able to gain the needed momentum due to some hassles. This paper tries to shed light on the theoretical concept, nature, practice, need, role of forensic accounting in preventing fraud, and the practical difficulties faced by forensic accountants. The study is based on information collected from interviewing practicing forensic accounting in India during 2011-12. The paper was able to assess the importance and rising scope of forensic accounting as a job. It also understood the practical difficulties they faced like lack of organized databases in Indian scenario which makes it difficult to access all needed information. Expectation level of the clients is very high and at times even unreasonable. This paper fulfills an identified need to study the important rising field of forensic accounting in India.
文摘Active databases react to stimulation, or event from inside or outside the system without user or application interference through Events Conditions Actions(ECA) rules (triggers). ECA rule is defined as: ON event IF condition THEN action, which means when an event happens, if the condition is satisfied then the corresponding action is executed. The nature of ECA rule makes it an appropriate means to model dynamic character of systems, as gained much studies during recent years. Traditional ECA rule is crisp, which means their events, condition (s) and action(s) are accurate. As indicate that ECA rules can only represent precise knowledge. But knowledge is usually fuzzy in engineering. A concept of fuzzy ECA rules characterized with fuzzy event, fuzzy condition and fuzzy action is proposed in this article.The realization avenues of fuzzy triggers are discussed. The work we have done blazes a way in representing approximate syntax in active database application systems. At last a case of 'overheating alarm' is given to illustrate the approach.
文摘Since its installation on the International Space Station(ISS)in mid-May 2011,the Alpha Magnetic Spectrometer(AMS)has spent over two years on orbit,fully operational,collecting an enormous amount of data including the temperatures from the on-board 1118 sensors for thermal control.A large database is continuously updated and analyzed to understand the thermal behavior of the experiment in the space environment and its interaction with the ISS.This paper specifies the design,building,analysis and testing of the thermal control system and its various components for an overview of the AMS thermal control system and its space environment.Also given are some examples of analysis and correlation of the space environmental and ISS parameters with the thermal behaviors of various AMS components.
