高分辨

In this paper, a novel algorithm for high resolution DOA estimation is proposed, which not only skips sources number estimation and EVD, but also behaves satisfactorily with a few snapshot, it may be viewed as a combination of merit of conventional Capon and MUSIC method.

该文提出一种超分辨的DOA估计算法，此算法不需要预判信源个数和进行特征值分解，同时在时变环境中，针对快拍数较少的情况下，依然保持较高的角度分辨能力，可以被认为是综合了Capon法和MUSIC法的优点。

With simultaneous picosecond temporal resolution and nanometer spatial resolution for each framing image, is proposed in this dissertation.

分幅电子显微技术是将电子显微技术的高空间分辨特性与交叉点扫描多光阑分幅技术的高时间分辨特性相结合，能够以ps量级的时间分辨率和nm量级的空间分辨率获得样品在不同时刻的多幅显微图像。

In chapter 4, by AREELS, the Generalized Oscillator Strength Density Spectra were measured in the energy region from 56 to 66eV, with the incident energy 2. 5 keV and energy resolution 80 meV, at scattering angles from 0°to 6°, corresponding to the momentum transfer K〓=0.03~2. 01 a. u. The Fano profile parameters f〓 and q for the optically allowed transition 〓(0, 1)〓P°and the optically forbidden transitions 〓(1, 0)〓S〓and 〓(1, 0)〓D〓 were obtained as a function of K〓. With the hyperspherical coordinate wavefunctions, the dynamical correlation are discussed qualitatively. So, a new experimental way to study dynamical electron correlation effect is opened.In chapter 5, the widely used R-matrix theory was introduced. Then, the GOSDS for the optically allowed excitation series (1s〓)〓S〓→〓(0, 1)〓P°(n=2-4) were calculated by this method, and the Fano profile parameters f〓 and q were obtained sequently. So the electron correlation effect can be described by these parameters quantitatively, and the theoretical results were compared with our AREELS experimental results.

在第四章中，实验上，同样使用角分辨的高能量分辨快电子能量损失谱仪，在2.5keV电子入射能量和80meV的能量分辨下，测量了0°到6°散射角下的He原子双电子激发态在56~66eV的广义振子强度密度谱，这种情况，0°~6°对应的动量转移范围K〓=0.03~2.01a.u。，得到了光学允许跃迁的双电子激发态〓（0，1）〓P〓和光学禁戒跃迁的双电子激发态〓（1，0）〓S〓、〓（1，0）〓D〓的Fano线形参数f〓，q等随动量转移变化的曲线；观测到了几个强度很弱、能级很窄的光学允许和禁戒跃迁双电子激发态，用前人准确的理论结果进行了标识；通过比较弱共振〓（1，0）〓S〓和〓（-1，0）〓S〓的强度随动量转移K〓的变化规律，结合超球坐标理论计算的波函数，定性地阐述了在电子碰撞散射过程中它们各自不同的动力学电子关联效应，发展了一套在实验上研究电子关联效应的新方法。

Work on mesoscopic superconducting films has demonstrated interesting new features associated with the interplay between fluxions and artifacts.

在超导材料方面，生长出具有国际一流水平的氧化物高温超导单晶；在铁基高温超导材料方面，获得最高的超导转变温度；在超导机理的研究方面，建立了一些行之有效的手段，如低温比热、隧道谱、角分辨光电子谱、红外光电导谱等等，利用这些重要手段获得了一些重要结果，如从比热角度提出欠掺杂氧化物超导体应该具有一个费米弧基态，利用高精度角分辨光电子谱测量第一次观察到115meV和150meV两个新的高能量精细结构。

Based on multiresolution analysis, the definition of wavelet high central moments and high mix central moments are put forward by us. Further more, methods for calculating Betas, Gammas and Thetas and multiresolution CAPM are established also.

利用小波多分辨分析的特点，给出了小波高阶中心矩和高阶混合中心矩的定义，基于此给出了多分辨系统风险测度Beta、Gamma、Theta的计算方法和多分辨CAPM。

This project will mass produce high purity paralytic shellfish toxins using a combination of photobioreactor, HPLC-MS and NMR approaches, and develop novel PSTs detection method based on fluorescent characteristics of crown ethers, and finally apply this product and method for PSTs monitoring in

本项目将分离纯化中国沿海典型麻痹性贝毒C1/C2，GTX1/4，GTX2/3和GTX5，运用液相色谱-质谱联用技术和核磁共振等方法定量毒素纯度和含量，制备高纯度毒素标样，建立麻痹性贝毒的大规模生物生产技术；合成筛选适宜的毒素化学传感器—冠状醚，优化毒素和冠状醚的反应体系，结合多重时间分辨荧光技术，建立麻痹性贝毒多重时间分辨荧光检测技术，并用于水产品中麻痹性贝毒的检测。

This project will mass produce high purity paralytic shellfish toxins using a combination of photobioreactor, HPLC-MS and NMR approaches, and develop novel PSTs detection method based on fluorescent characteristics of crown ethers, and finally apply this product and method for PSTs monitoring in seafoods.

本项目将分离纯化中国沿海典型麻痹性贝毒 C1/C2 ， GTX1/4 ， GTX2/3 和 GTX5 ，运用液相色谱-质谱联用技术和核磁共振等方法定量毒素纯度和含量，制备高纯度毒素标样，建立麻痹性贝毒的大规模生物生产技术；合成筛选适宜的毒素化学传感器—冠状醚，优化毒素和冠状醚的反应体系，结合多重时间分辨荧光技术，建立麻痹性贝毒多重时间分辨荧光检测技术，并用于水产品中麻痹性贝毒的检测。

In chapter 2 and 3, experimentally, using the Angular-Resolved high-resolution fast Electron Energy Loss Spectrometer , at the condition of 2. 5 keV incident energy and 50-60 meV energy resolution, we measured the Optical Oscillator Strength Density Spectra for the excitations of 4p, 4s or 3d electron. The oscillator strengths for excitations of the valent shell 4p electron were obtained, and comparisons were done between presently experimental and previously experimental and theoretical results. The experimental results of different groups agree with each other approximately, but the semi-experientially theoretical results do not match with the experimental results. The delayed maximum in the photoabsorption spectra was discussed. It should arise from the transition of 4p→∈d. For the excitation of the inner-valent 4s electron, the discrepancies for the resonant structures in previous electron-impact results and photoionization results were clarified in present work, which confirms again that the fast electron impact method is suitable to measure the optical oscillator strengths. The autoionization Rydberg series 4s〓ns (n=5, 6, 7) and 4s〓nd (n=4, 5, 6, 7) were identified without ambiguity by the measurement at 0°, 2° and 4°scattering angles. The energy levels and natural widths of the excitations of Kr3d and Ar2p inner shell, including optically allowed and forbidden transitions, were determined. The widths of these inner shell excitations are nearly the same, which was interpreted by the Resonant Auger effect .

在第二章和第三章，实验上，使用角分辨的高能量分辨快电子能量损失谱仪，在2.5keV电子入射能量和50-60meV能量分辨下，测量了Kr原子由价壳层4p到内价壳层4s，再到内壳层3d电子激发的光学振子强度密度谱；得到了价壳层4p电子激发束缚态的光学振子强度，与前人实验和半经验理论结果作了细致的比较，说明几家实验是比较符合的，但半经验的理论计算存在问题；分析了光吸收谱中的延迟极大现象，说明在第一电离阈值以上几个eV范围内的极大值源于4p→εd跃迁产生的延迟极大；对于内价壳层4s激发的自电离区，澄清了前人实验中电子碰撞方法和光学方法在共振结构上存在差异的问题，再一次肯定了快电子碰撞方法是获得绝对光学振子强度的一种好方法；通过在非0°散射角的测量（如2°和4°），清楚地标识了4s电子激发的光学禁戒跃迁自电离里德堡系列4s〓ns（n=5，6，7）和4s〓nd（n=4，5，6，7）；通过在0°和4°散射角的测量，观测并标识了几个新的内壳层光学禁戒跃迁能级，得到了Kr原子3d和Ar原子2p内壳层激发态（包括光学允许和禁戒跃迁形成的）的能级位置和自然宽度，用共振俄歇效应解释了这些内壳层激发态（不管是光学允许还是禁戒跃迁产生的）的自然宽度彼此比较接近的原因。

The main purpose in this dissertation is to study how to enhance VHF radar by using modern high resolution techniques.

本论文的目的在于探讨如何利用高分辨技术提高米波雷达的角分辨率。

This thesis focuses on the methodology and applications of high resolution NMR spectroscopy in protein study.

本论文围绕液体高分辨核磁共振技术在蛋白质研究中的一些方法和应用展开研究工作。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。