Objietives To investigate (l)the relationship between reciprocal translocation and spotaneous abortion; (2) the frequency of genetic imbalance embryo in reciprocal translocation carriers.
目的 探讨染色体相互易位(reciprocal translocation)与自然流产(spotaneous abortion)的关系，并研究自然流产人群中相互易位携带者不平衡胚胎发生概率，为产前诊断(prenatal diagnosis)或胚胎植入前诊断(preimplantation genetic diagnosis,PGD)提供依据。
The formula expresses that the perfect Lyot depolarizers in Fiber-optic depolarized gyro(Dep-I-FOG) can still be affected by the axial magnetic field,and this may result in Faraday nonreciprocal phase error to gyro.
运用琼斯矩阵,基于单色光,导出了与消偏器绕向平行的轴向磁场,仍能对去偏光纤陀螺中理想的消偏器产生影响,从而给陀螺带来Faraday非互易相位差的具体公式,并给出了此相位差随保偏光纤扭转率变化的仿真结果和加磁场后的实验结果。
And the main method to reduce the Faraday nonreciprocal phase error resulted from the axial magnetic field is put forward,too.
基于单色光分析了轴向磁场产生的法拉第非互易相位差的机理,理论推导了实际的非互易相位差,给出仿真结果、分析结果和实验结果,并提出减小轴向磁场作用下的Faraday非互易相位差的主要方法是使得两个消偏器的45°误差之和(θ3+θ4)→0。