改进的

Adaptive α-β filter algorithm was introduced, and then it was compared to ISR filter algorithm and Kalman filter algorithm, the mean square deviation of distance, position, speed and direction of these algorithms on the flight line was analyzed to discuss the specific use of the three filters in straight-line flight and about-ship straight-line flight.

介绍了一种改进的α-β滤波算法，然后将它和最小二乘滤波算法、卡尔曼滤波算法进行比较，对三种算法跟踪空中目标的直线飞行、改变航向的直线飞行两种情况的距离、方位、速度和航向等参数的均方差加以分析，证明了改进的。

The follow-on CVNX-2 would mark the culmination of the stepped evolution, further benefitting from a remodelled flight deck, hull improvements, survivability enhancements and new arrestor gear.

后继的 CVNX-2 将到达逐步改进的顶点，进一步受益于重新设计的飞行甲板，改进后的舰体，增强的生存能力和新的着舰捕捉机构。

A modified aerial image was obtained by convolving the aerial image with a Gaussian filter to smear the image in a manner analogous to resistive diffusion, and then applying a variable threshold resist model on the modified image to predict the CD variations.

用高斯滤波器与空间影像进行卷积，得到改进的空间影像来模拟光刻胶的扩散，然后使用可变阈值光刻胶模型，以实际工艺数据拟合该模型参数，再把改进空间影像的相关信息作为输入，并根据可变阈值光刻胶模型所确定的光强阈值来预测CD变化，从而使光刻仿真的结果更精确地附合实际测量数据。

A new convenient synthesis of a series of 1-aryl-2-propanones using aromatic amines as precursors, via diazo reaction and improved Meerwein arylation reaction under mild conditions, was achieved. In addition, 1-[3,5-bisphenyl]-2-propanone is a new compound among the synthesized compounds. This approach is an efficient synthetic method for the aryl-propanones with the different substituting groups.

以芳香胺为原料，经重氮化和改进的Meerwein芳基取代反应，合成了一系列的1-芳基－2-丙酮，其中1-（3，5-二三氟甲基苯基）2-丙酮是一个新化合物改进后的方法简化了合成步骤，提高了收率，可方便地用于在苯环上具有不同取代基的芳基丙酮的合成。

To eliminate the anti-tank missile s deep flight on the right side of sight line,based on analyzing the missile s characteristics in frequency domain and control system parameters,studying the mechanism, non-linear control method was introduced in the modification design for pitch and yaw channels correctors and their parameters of guidance loop in frequency domain.

为了解决某反坦克导弹续航段长时间偏离在瞄准线右侧飞行的问题，从分析导弹的频域特性和制导控制系统参数出发，研究问题发生的机理，引入非线性控制方法，在频域范围内对制导回路的纵向和横向通道校正环节及参数进行改进设计，用数字仿真验证改进的有效性。

To eliminate the anti-tank missile's deep flight on the right side of sight line, based on analyzing the missile's characteristics in frequency domain and control system parameters, studying the mechanism, non-linear control method was introduced in the modification design for pitch and yaw channels' correctors and their parameters of guidance loop in frequency domain.

为了解决某反坦克导弹续航段长时间偏离在瞄准线右侧飞行的问题，从分析导弹的频域特性和制导控制系统参数出发，研究问题发生的机理，引入非城性拉制方法，在频域范围内对制导回路的纵向和横向通道校正环节及参数进行改进设计，用数字仿真验证改进的有效性。

Firstly, this paper, based on the principle of fact-finding, will regard the improvement of the processing arts of the super-light and super-thin cashmere knitwear as its objects and conduct deep-rooted analysis on the market needs and current situation of the fall-down of the export market share of the worsted cashmere knitting products manufactured by Erdos Cashmere Group. We conclude that High cost and unstable quality of the products are the main reason for that. Due to the above-mentioned conditions, we will conduct discussions on the necessities and significance for carrying out the quality improvement in line with the study and analysis for relevant techniques and products both from home and abroad.

本文以鄂尔多斯羊绒集团超轻薄精纺羊绒针织衫工艺质量改进为研究对象，本着一切从实际出发的原则，首先通过对鄂尔多斯集团精纺羊绒针织产品外销市场份额下滑的现状和市场需求深入分析，确定了超轻薄精纺羊绒针织衫成本过高和质量不稳定是产生上述现象的主要因素，并结合国内外的相关技术及产品研究分析，论述了实施此次质量改进的必要性及意义。

Efficient method was also taken up with for controlling and mitigating methane emissions from paddy fields.In summary, this study showed the feasibility of using new multi-temporal microwaveRadar ALOS data acquired in key dates during rice growing season to extract paddy ricegrowing area was tested. A modified rice backscatter model was developed on the basis oforiginal radiation transfer model for simulating paddy rice backscattering characeteristics. Themodified model and Genetic Algorithm Optimization Tool were synergized to reversephysical parameters and map rice biomass at spatial scale in the study area. At last, on thebasis of paddy rice planting area and farming practice data, biogeochemical DNDC modelwas utilized to simulate quantitatively estimating methane (CH_4) emission from paddy fieldsand represented some specific mitigation scheme.

综上所述，本研究在以下几方面取得了进展：验证了在水稻主要生长期内获得的多时相ALOS／PALSAR雷达数据提取种植面积的实用性；在原有辐射传输模型基础上进行改进，得到了适用于模拟水稻后向散射系数的一阶散射模型；利用改进的模型和遗传算法优化工具进行水稻结构参数反演，并对研究区开展水稻生物量空间分布制图和估算；利用DNDC模型模拟和定量估算稻田CH_4的排放量，进而提出了具体减排耕作措施。

In various embodiments, improved mechanisms for controlling texture sampling are provided that enable 3-D accelerator hardware to greatly increase the level of realism in rendering, including improved mechanisms for (1) motion blur;(2) generating anisotropic surface reflections (3) generating surface self-shadowing (4) ray-cast volumetric sampling (4) self-shadowed volumetric rendering and (5) self-shadowed volumetric ray-casting.

在各个实施例中，提供了用于控制纹理采样的改进的机制，它们能使3-D加速器硬件大大地提高呈现时的逼真度，包括针对下列各项的改进的机制：(1)运动模糊；(2)生成各向异性表面反射；(3)生成表面自投阴影；(4)光线投射容量采样；(4)自投阴影容量呈现和(5)自投阴影容量光线投射。

In additionthe Carnot model of the present system was established and its efficiency of the ideal cycle was obtained.

分析了吸收循环内部的能量转换，提出适合冷水大温差的改进的双蒸发器-双吸收器吸收循环系统，并建立了改进系统的卡诺模型，并推导出其理想循环的理论效率表达式。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。