Taking the transport of total phosphor pollutants in the Beijing Miyun reservoir for example,we have obtained three dimensional distributing regularity of total phosphor pollutants by the calculation of the linear int...Taking the transport of total phosphor pollutants in the Beijing Miyun reservoir for example,we have obtained three dimensional distributing regularity of total phosphor pollutants by the calculation of the linear interpolation value of each point between horizontal layers. The credibility analysis in allusion to this method was carried out and the programming scheme for realizing this method was set forth.展开更多
Both the maximal and the total skew information have been studied. For a three-qubit system implemented in three nonlinear interaction models, we give the exact state vector at any time t. Beused on this, we give the ...Both the maximal and the total skew information have been studied. For a three-qubit system implemented in three nonlinear interaction models, we give the exact state vector at any time t. Beused on this, we give the maximal and the total skew information. It is found that they have the same form and their evolution periods are dependent on the energy difference between the ground state and the second excited state in these models. The maximal skew information is always in the （Sx, Sv） plane. We give the condition for the occurrence of IGHZ}sy, in which they can reach the extreme values of 9/4 and 15/4, respectively. In three different decoherence channels, two kinds of information and the concurrence are calculated. We find that the phenomenon of the concurrence of sudden death occurs, but the above two kinds of information do not die suddenly. In the phase-damping channel, the two kinds of information will not be lost completely.展开更多
The Three Gorges Project (TGP) is the largest water conservancy and hydropower complex in the world, with a concrete consumption of 28 million m^3 in total. For such a significant world-attracting project, first rate ...The Three Gorges Project (TGP) is the largest water conservancy and hydropower complex in the world, with a concrete consumption of 28 million m^3 in total. For such a significant world-attracting project, first rate quality concrete is needed. Various mechanical and deformation performances of hydraulic mass concrete are determined conventionally by the wet screening method to make small specimens and the test results of the small standard specimens are taken to represent the properties of the mass concrete. However, the quantity of the coarse aggregate after wet screening would be reduced by 30% or so and the gel materials would increase by 20% or so, thus causing significant differences between the properties of the small concrete specimen and that of the total gradation concrete. To well understand the performances of the total gradation concrete of TGP dam, test studies have been performed on the total gradation concrete, including compressive strength, split tensile strength, elastic modulus, ultimate tension, dry shrinkage, self volume deformation, creep, seepage prevention, and so on, and comparison made with the small standard specimens to find out the relationship between them, which have provided scientific ground for the design, operation and safety verification of the TGP dam.展开更多
目的 观察三路径激素联合应用治疗全聋型突发性聋的疗效。方法 选择2020年1月至2022年12月全聋型突发性聋患者96例,随机分为观察组与对照组,对照组予地塞米松静脉滴注及常规治疗。观察组在此基础上加用鼓室和耳后地塞米松注射,共治疗10 ...目的 观察三路径激素联合应用治疗全聋型突发性聋的疗效。方法 选择2020年1月至2022年12月全聋型突发性聋患者96例,随机分为观察组与对照组,对照组予地塞米松静脉滴注及常规治疗。观察组在此基础上加用鼓室和耳后地塞米松注射,共治疗10 d。结果 对照组患者听力改善22例,有效率45.83%,观察组改善30例,有效率62.50%。治疗前对照组与观察组纯音听阈均值分别为(95.3±13.2)d B HL和(96.1±13.1)d B HL,治疗后分别为(63.2±17.1)d B HL和(52.8±16.8)d B HL,观察组治疗效果优于对照组(P<0.05)。两组耳鸣、眩晕、耳闷等症状改善率差异无统计学意义(P>0.05)。结论 早期三路径激素治疗全聋型突发性聋可有效提高听力恢复,值得临床推广。展开更多
文摘Taking the transport of total phosphor pollutants in the Beijing Miyun reservoir for example,we have obtained three dimensional distributing regularity of total phosphor pollutants by the calculation of the linear interpolation value of each point between horizontal layers. The credibility analysis in allusion to this method was carried out and the programming scheme for realizing this method was set forth.
基金Project supported by the College Young Talents Foundation of Anhui Province,China(Grant No.2010SQRL107)the Natural Science Foundation of the Education Department of Anhui Province,China(Grant No.KJ2008B83ZC)the Natural Science Foundation of Anhui Province,China(Grant No.KJ2011Z234)
文摘Both the maximal and the total skew information have been studied. For a three-qubit system implemented in three nonlinear interaction models, we give the exact state vector at any time t. Beused on this, we give the maximal and the total skew information. It is found that they have the same form and their evolution periods are dependent on the energy difference between the ground state and the second excited state in these models. The maximal skew information is always in the （Sx, Sv） plane. We give the condition for the occurrence of IGHZ}sy, in which they can reach the extreme values of 9/4 and 15/4, respectively. In three different decoherence channels, two kinds of information and the concurrence are calculated. We find that the phenomenon of the concurrence of sudden death occurs, but the above two kinds of information do not die suddenly. In the phase-damping channel, the two kinds of information will not be lost completely.
文摘The Three Gorges Project (TGP) is the largest water conservancy and hydropower complex in the world, with a concrete consumption of 28 million m^3 in total. For such a significant world-attracting project, first rate quality concrete is needed. Various mechanical and deformation performances of hydraulic mass concrete are determined conventionally by the wet screening method to make small specimens and the test results of the small standard specimens are taken to represent the properties of the mass concrete. However, the quantity of the coarse aggregate after wet screening would be reduced by 30% or so and the gel materials would increase by 20% or so, thus causing significant differences between the properties of the small concrete specimen and that of the total gradation concrete. To well understand the performances of the total gradation concrete of TGP dam, test studies have been performed on the total gradation concrete, including compressive strength, split tensile strength, elastic modulus, ultimate tension, dry shrinkage, self volume deformation, creep, seepage prevention, and so on, and comparison made with the small standard specimens to find out the relationship between them, which have provided scientific ground for the design, operation and safety verification of the TGP dam.
文摘目的 观察三路径激素联合应用治疗全聋型突发性聋的疗效。方法 选择2020年1月至2022年12月全聋型突发性聋患者96例,随机分为观察组与对照组,对照组予地塞米松静脉滴注及常规治疗。观察组在此基础上加用鼓室和耳后地塞米松注射,共治疗10 d。结果 对照组患者听力改善22例,有效率45.83%,观察组改善30例,有效率62.50%。治疗前对照组与观察组纯音听阈均值分别为(95.3±13.2)d B HL和(96.1±13.1)d B HL,治疗后分别为(63.2±17.1)d B HL和(52.8±16.8)d B HL,观察组治疗效果优于对照组(P<0.05)。两组耳鸣、眩晕、耳闷等症状改善率差异无统计学意义(P>0.05)。结论 早期三路径激素治疗全聋型突发性聋可有效提高听力恢复,值得临床推广。
