基本曲线

The results are as follows:① The population structure of Picea schrenkiana-Dryopteris filix-mas pure stands is stable, the patterns of age, diameter and the height of Picea schrenkiana-Dryopteris filix-mas pure stands are all in inverse J-shaped curves, indicating a typical uneven-aged stand structure.

以西天山国家自然保护区内1 hm^2原始鳞毛蕨(Dryopteris filix-mas)天山云杉纯林临时标准地调查材料为基础，分析鳞毛蕨天山云杉林胸径、树高和年龄结构、种群存活曲线以及基本测树因子之间的相互关系。

The paper introduces the basic principle about the new designing method of the external gear shaper cutter ,limited condition of the transformed cutter displacement factor,the formation of the limited ared and its relationship with the calculation curve of the cutter tip-circle's radius.

叙述了外插齿刀设计新方法的基本原理、转换后插齿刀变位系数选择的各限制条件、限制区域的形成及其与插齿刀齿顶圆半径计算曲线之间的关系，并通过实例介绍了其设计步骤。

Thirdly, geometry and mechanics equation on arbitrary point of the mooring line is deduced based on the catenary's theory . By using B-Spline functions the relationship curve between excursion and mooring force can be obtained, so the mooring force on buoy during the motion is known.

另外，本文应用数学物理的悬链基本方程，推导出平衡悬链上的任意点的几何、力学计算方程，给出了链型静力平衡判别式，还建立了锚链松弛和张紧状态下锚链顶端位移与水平力及垂向力之间关系的分析程序，通过B样条函数方法拟合不出同吃水情况下物体的水平漂移量与锚链拉力之间的关系曲线，从而在时域计算中可以得到锚链力的大小。

Results: The four linear calibration curves were obtained over the range 0.025μgml^(-1) to 3.2μgml^(-1) of amphetamines (amphetamine, methamphetamine, MDMA, MDA) in urine (r=0.9977-0.9998). The recoveries of the assay were better under different concentrations and the lowest concentration of detection reached the level of nanogram.

结果：4种苯丙胺类药物在尿药浓度为0.025-3.2μgml^(-1)范围内标准曲线的线性关系良好(r=0.9977-。09998)；高、中、低3种浓度各标准药物的回收率较高；日内、日间精密度的BSD基本符合小于10%的要求；最低检测浓度能够达到纳克级，具有较高的灵敏度。

In the chapter 4, the HPLC analyses of Uridine and Thymidine implanted by ions with high energy are done. The result shows that the dose effect curves of ions with high energy are almost the same to the dose effect curve of ions with low energy. At the beginning, the damage of implanted ions to the sample is large, with the dose increasing, the damage drops sharply.

第四章对高能离子辐照尿苷和胸苷做了HPLC分析，结果表明高能离子辐照胸苷和尿苷样品的剂量效应曲线和低能离子基本相同，都是在注入初始阶段对样品的损伤比较大，随着剂量的增大，损伤迅速减小。

For convenience of the comparison and application, method for calculating the binder path length is set up in accordance with Newton-Cotes method under the aid of computer. The binder shrinkages, which are more useful in fabric production, are converted from binder path length, and compared with the testing shrinkage results.

为了方便比较和应用，采用Newton-cotes法，建立了接结纱曲线长度的计算方法，并由计算机进行求解；再将模型计算的接结纱长度转化为接结纱缩率，并与实际测试的接结纱缩率相比较，发现两者基本是一致的，误差较小，说明建立的接结纱模型是正确的。

After a lengthy medieval conservative religion thoughts tightly, Renaissance movement of body beauty inspired human body beauty, type, the pursue, almost all curvaceous women of all classes with unprecedented enthusiasm, build and improve their measurements curves, therefore, sequinned bodice and waist clip has become the essential at European women's underwear.

在经历了漫长的中世纪保守宗教思想的禁锢之后，文艺复兴运动激发了人类对身材美、型体美、曲线美的追求，几乎所有阶层的女性都以前所未有的热情，建造和改善自己的三围曲线，因此，紧身胸衣和腰夹成为了当时欧洲女性必备的基本内衣。

After a lengthy medieval conservative religion thoughts tightly, Renaissance movement of body beauty inspired human body beauty, type, the pursue, almost all curvaceous women of all classes with unprecedented enthusiasm, build and improve their measurements curves, therefore, sequinned bodice and waist clip has become the essential at European women's underwear.

在经历了漫长的中世纪守旧宗教思想的禁锢之后，文艺复兴运动激发了人类对身材美、型体美、曲线美的追求，几乎所有阶层的女性都以前所未有的热情，建筑和改善自己的三围曲线，因此，紧身胸衣和腰夹成为了当时欧洲女性必备的基本亵服。

The paper investigates both block-type pilot linear minimum mean square error algorithm and IEEE802.16 OFDM channel estimation analysis. Simulation results confirm the block-type pilot structure is more suitable for IEEE802.16 system. An optimal pilot setting algorithm, based on space frequency domain, is explored and the pilot chart is presented. The proposed algorithm finds its application in MIMO-OFDM. Simulation results show the algorithm presents a good approximation to the perfect channel state information curve, with about 2dB difference in SNR. The simulation results also demonstrate the algorithm achieves fairly high stability in the environment of fast fading, performance of the proposed algorithm is better that of pilot training channel estimation.3. Taking into account the characteristics of IEEE802.16 OFDM system, OFDM system simulation platform is constructed in Matlab, exploiting simulink as a tool. OFDM modulation and demodulation simulation system are configured on LabVIEW platform. All the system signal processing is simulated, including defining system parameters, designing modulation model, and verifying all the proposed algorithms under different environments, such as white Gaussian noise, multi-path fading, with or without guard interval etc. Bit error performance is evaluated. The research provides valid theoretical basis for practical OFDM system performance evaluation.4. Taking advantage of software radio, the paper designs a hardware platform with both 256-IFFT/FFT and 512-IFFT/FFT OFDM schemes co-existing in one platform. You can predetermine one from the two schemes to carry out almost the same model function with different system performance and parameter setting.5. Referring to IEEE802.16 standard, the paper proposes a design method for generating signals and frames suitable for laboratory investigations implemented in laboratory environment.6. Based on 6701evm digital evaluation card, combined with analogy front-end, the paper designs a DSP software model to deal with baseband signal processing. An overall OFDM scheme, with modulation and demodulation function, is accomplished.

讨论分析了MIMO-OFDM中一种基于空频域的最优导频设置算法，给出了导频图案，通过仿真实验表明，该算法与理想的信道状态信息曲线非常接近，信噪比差距约在2dB左右，并且在快衰落条件下具有较好的稳定性，其性能要优于基于前导训练的信道估计方法。3、根据IEEE802.16OFDM系统特点，论文分别在Matlab中应用Simulink工具构建OFDM系统仿真平台、在LabVIEW平台上实现了OFDM调制解调仿真系统，模拟了整个系统的信号流程，进行了OFDM仿真系统参数的选择和调制模块的仿真设计、论证各算法性能，并根据各种不同的条件：例如高斯噪声、多径衰落、有无保护间隔等，对系统的误码特性进行了评估，为正确评价实际OFDM系统的性能提供了有效的理论依据。4、论文以软件无线电思想作为指导，提出了以256点IFFT／FFT为核心和以512点IFFT／FFT为核心的两种OFDM算法模式并存于同一个硬件平台、且可预选的方案，它们在参数选取和性能指标上有所差异，均实现了相似的模块和功能。5、论文参考IEEE 802.16无线网络标准的参数设置，针对本设计系统的应用环境和系统硬件的性能速率，提出了一种应用于实验室环境的信号结构、帧格式等参数设计。6、论文基于TI公司的6701evm数字评估板卡，结合模拟前端搭建数字中频平台，设计了基带处理的DSP软件模块并进行系统调试，基本实现了一套完整的OFDM调制解调方案。

This thesis presents the preliminary study of the influence of sentence stress on prosodic features in Mandarin, and of the relationship between duration and pitch under different sentence stress levels. The results show that: The pitch is the most important factor which carries the sentence stress, with the increase of the sentence stress level, the peak of distribution contour of pitch moves towards high frequency area. In the case of"Stress"and"Light", two peaks are found in the distribution contour of duration, which means that the duration of some words are affected by sentence stress, but of others are not. The relationship between pitch and duration in"Normal","Stress"and"Light" are un-correlated, positive correlation and negative correlation respectively.

研究了汉语语句重音对音长和音高的影响、及音长和音高之间的相互关系，结果指出：（1）音高是汉语语句重音的基本表达手段，随着语句重音级别的提高，音高的统计分布曲线向高频方向推移；（2）在连续语流中的词被&重读&和&轻读&的情况下，音长分布出现双峰，表示它们的音长存在着受语句重音的影响和不受语句重音的影响两种情况；（3）词在&正常&、&重读&和&轻读&三种情况下，音高和音长的相互关系分别是：不相关、负相关和正相关。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。