圆屏(球)和圆环菲涅耳衍射的解析表达式

在标量衍射理论的基础上，给出了圆屏（球）和圆环菲涅耳衍射的振幅及光强解极表达式。计算了光强分布曲线，并将计算实例和有关资料中的实验与计算结果进行了比较。同时指出所谓无衍射光束实际上是一种菲涅耳衍射现象。     

求解随机微分方程的二级Milstein方法(英文)

In this paper we discuss two-stage Miistein methods for solving Ito stochastic differential equations （SDEs）. Six fully explicit methods （TSM 1 -- TSM 6） are given in this paper. Their order of strong convergence is proved. The stability properties and numerical results show the effectiveness of these methods in the pathwise approximation of Ito SDEs.     

某些卟啉/醌模型体系中的光诱导氢转移反应机理探索

在质子溶剂中运用光诱导CIDNP与ESR方法直接验证了醌与电子给体间的光诱导氢转移反应分子机理.     

铸造系统热传导有限元法自适应分析

基于块平衡恢复技术并考虑界面热阻进行了铸造系统非线性瞬态热传导同题的自适应有限元分析，同时采用超收敛块光滑技术及ANSYS软件对我们自编的软件进行了验证。三种有限元解与实验结果比较表明，论文采用方法是成功的。     

High power all-solid-state quasi-continuous-wave tunable Ti:sapphire laser system

This paper reports a high power, all-solid-state, quasi-continuous-wave tunable Ti:sapphire laser system pumped by laser diode (LD) pumped frequency-doubled Nd:YAG laser. The maximum tuned output power of 4.2 W (797 nm) and tuned average power of 3.7 W were achieved when fixing the Ti:sapphire broadband output power at 5.0 W and applying 750-850 nm broadband coated mirror.     

Deterministic nondestructive state analysis for polarization-spatial-time-bin hyperentanglement with cross-Kerr nonlinearity

We present a deterministic nondestructive hyperentangled Bell state analysis protocol for photons entangled in three degrees of freedom(DOFs),including polarization,spatial-mode,and time-bin DOFs.The polarization Bell state analyzer and spatial-mode Bell state analyzer are constructed by polarization parity-check quantum nondemolition detector(P-QND)and spatial-mode parity-check quantum nondemolition detector(S-QND)using cross-Kerr nonlinearity,respectively.The time-bin Bell state analyzer is constructed by the swap gate for polarization state and time-bin state of a photon(P-T swap gate)and P-QND.The Bell states analyzer for one DOF will not destruct the Bell states of other two DOFs,so the polarization-spatial-time-bin hyperentangled Bell states can be determinately distinguished without destruction.This deterministic nondestructive state analysis method has useful applications in quantum information protocols.     

钝头机体用FADS-α的求解算法及精度研究

针对钝头机体用嵌入式大气数据传感（flush air data sensing,FADS）系统的4类攻角求解算法及算法的求解精度进行研究.针对典型的15°钝头体外形,在Mach数Ma=2.04,3.02,5.01,攻角α=-5°~30°,侧滑角β=0°的条件下,首先基于势流理论及修正的Newton流理论建立了钝头机体用FADS系统的理论模型,并给出了典型的测压孔配置方案;然后采用经典三点式及改进三点式算法、基于线性理论的五孔探针算法、基于非线性理论的五点拟合算法、基于神经网络建模的方法及基于压力模型的加权最小二乘迭代算法,分别建立了FADS-α的4类求解算法;最后对钝头机体用FADS-α的算法求解精度进行了系统对比及论证.研究结果表明,三点式算法、改进三点式算法与加权最小二乘迭代算法精度相当,都可以比较准确地预测攻角;神经网络算法精度较好,但算法涉及的经验参数较多,且需要大批量数据集的训练及验证;拟合算法优劣明显,基于线性理论的五孔探针算法精度在小攻角时与上述几种算法精度相当,但随攻角增大（大于10°）精度下降显著;而基于非线性理论的拟合算法精度较好,但拟合过程复杂繁琐.对钝头机体用FADS-α的算法精度而言,三点式算法、改进三点式算法及加权最小二乘迭代算法是较好的计算方法.      

Temperature Dependent In-Plane Anisotropic Magnetoresistance in HfTe_5 Thin Layers

We report the observation of in-plane anisotropic magnetoresistance and planar Hall effect in non-magnetic HfTe₅ thin layers.The observed anisotropic magnetoresistance as well as its sign is strongly dependent on the critical resistivity anomaly temperature T_p.Below T_p,the anisotropic magnetoresistance is negative with large negative magnetoresistance.When the in-plane magnetic field is perpendicular to the current,the negative longitudinal magnetoresistance reaches its maximum.The negative longitudinal magnetoresistance effect in HfTe₅ thin layers is dramatically different from that induced by the chiral anomaly as observed in Weyl and Dirac semimetals.One potential underlying origin may be attributed to the reduced spin scattering,which arises from the in-plane magnetic field driven coupling between the top and bottom surface states.Our findings provide valuable insights for the anisotropic magnetoresistance effect in topological electronic systems and the device potential of HfTe5 in spintronics and quantum sensing.     

气相色谱-电子捕获检测法和气相色谱-质谱法同时测定鱼体内19种有机氯农药

建立了气相色谱-电子捕获检测(GC-ECD)法同时测定,及气相色谱-离子阱-多级质谱(GC-IT-MS/MS)法定量确证鱼体中19种有机氯农药(OCPs)残留的检测方法。目标物采用浸渍-振荡法提取,固相萃取(SPE)(脂肪含量≤1.0%)和凝胶色谱(GPC)净化,浓缩,定容后上机测定。草鱼肌肉空白组织中目标化合物的添加浓度为2.0、5.0μg/kg时,GC-ECD法与GC-IT-MS/MS法的回收率分别为72.8%～96%和78.8%～106%,相对标准偏差分别为2.1%～14.9%和4.8%～11%。定量限(S/N=10)分别为0.07～1.44μg/kg和0.10～4.27μg/kg。本方法已成功应用于长江圆口铜鱼体中多种OCPs残留的同时测定。     

含有源频率选择表面可调复合吸波体

基于传输线等效理论,设计了含有源频率选择表面(active frequency selective surface,AFSS)的三层可调复合吸波体,第一层是表面层,为AFSS衬底;中间层是AFSS层,由频率选择表面(frequency selective surface,FSS)和PIN二极管阵列构成;第三层是介质层.反射率测量结果表明,通过调节PIN二极管阵列偏置电压可以动态调节吸波体反射特性,在偏置电压为5 V时,可获得最佳吸波性能,在5—15 GHz和5.3—13 GHz频段分别可获得-8 dB和- 关键词： 频率选择表面 复合吸波材料 反射率 PIN二极管