As technological innovations in computers begin to advance past their limit (Moore’s law), a new problem arises: What computational device would emerge after the classical supercomputers reach their physical limitati...As technological innovations in computers begin to advance past their limit (Moore’s law), a new problem arises: What computational device would emerge after the classical supercomputers reach their physical limitations? At this moment in time, quantum computers are at their starting stage and there are already some strengths and advantages when compared with modern, classical computers. In its testing period, there are a variety of ways to create a quantum computer by processes such as the trapped-ion and the spin-dot methods. Nowadays, there are many drawbacks with quantum computers such as issues with decoherence and scalability, but many of these issues are easily emended. Nevertheless, the benefits of quantum computers at the moment outweigh the potential drawbacks. These benefits include its use of many properties of quantum mechanics such as quantum superposition, entanglement, and parallelism. Using these basic properties of quantum mechanics, quantum computers are capable of achieving faster computational times for certain problems such as finding prime factors of an integer by using Shor’s algorithm. From the advantages such as faster computing times in certain situations and higher computing powers than classical computers, quantum computers have a high probability to be the future of computing after classical computers hit their peak.展开更多
野茼蒿(Crassocephalum crepidioides (Benth.) S. Moore)原产非洲,在我国主要分布于广东、海南、江西、湖南、四川、云南等地,是我国的外来入侵植物,研究其在逆境条件下的生理适应机制对于有效治理该入侵种具有十分重要的意义.采用自...野茼蒿(Crassocephalum crepidioides (Benth.) S. Moore)原产非洲,在我国主要分布于广东、海南、江西、湖南、四川、云南等地,是我国的外来入侵植物,研究其在逆境条件下的生理适应机制对于有效治理该入侵种具有十分重要的意义.采用自然干旱胁迫法,研究了干旱胁迫下野茼蒿抗氧化酶系统的变化.结果表明:随着胁迫时间的延长,野茼蒿叶片内丙二醛含量升高,复水后下降;在胁迫过程中过氧化物酶(POD)和抗坏血酸过氧化物酶(APX)持续下降,酶结构破坏;而超氧化物歧化酶(SOD)、过氧化氢酶(CAT)、谷胱甘肽还原酶(GR)3种酶活性先升高,后下降,在复水后,超氧化物歧化酶(SOD)和过氧化氢酶(CAT)恢复到胁迫前水平,而GR未能恢复.研究结果表明SOD、CAT和GR协同作用,维持了体内活性氧的平衡.展开更多
文摘As technological innovations in computers begin to advance past their limit (Moore’s law), a new problem arises: What computational device would emerge after the classical supercomputers reach their physical limitations? At this moment in time, quantum computers are at their starting stage and there are already some strengths and advantages when compared with modern, classical computers. In its testing period, there are a variety of ways to create a quantum computer by processes such as the trapped-ion and the spin-dot methods. Nowadays, there are many drawbacks with quantum computers such as issues with decoherence and scalability, but many of these issues are easily emended. Nevertheless, the benefits of quantum computers at the moment outweigh the potential drawbacks. These benefits include its use of many properties of quantum mechanics such as quantum superposition, entanglement, and parallelism. Using these basic properties of quantum mechanics, quantum computers are capable of achieving faster computational times for certain problems such as finding prime factors of an integer by using Shor’s algorithm. From the advantages such as faster computing times in certain situations and higher computing powers than classical computers, quantum computers have a high probability to be the future of computing after classical computers hit their peak.
文摘野茼蒿(Crassocephalum crepidioides (Benth.) S. Moore)原产非洲,在我国主要分布于广东、海南、江西、湖南、四川、云南等地,是我国的外来入侵植物,研究其在逆境条件下的生理适应机制对于有效治理该入侵种具有十分重要的意义.采用自然干旱胁迫法,研究了干旱胁迫下野茼蒿抗氧化酶系统的变化.结果表明:随着胁迫时间的延长,野茼蒿叶片内丙二醛含量升高,复水后下降;在胁迫过程中过氧化物酶(POD)和抗坏血酸过氧化物酶(APX)持续下降,酶结构破坏;而超氧化物歧化酶(SOD)、过氧化氢酶(CAT)、谷胱甘肽还原酶(GR)3种酶活性先升高,后下降,在复水后,超氧化物歧化酶(SOD)和过氧化氢酶(CAT)恢复到胁迫前水平,而GR未能恢复.研究结果表明SOD、CAT和GR协同作用,维持了体内活性氧的平衡.
