球形的

Simulation results show that our algorithm enforces the adaptability of differential space-frequency modulation to the time delay expansion.Finally, we give our work to reduce the complexity of multiple symbol differential sphere decoding in differential space-time modulation. Through the modification of the enumeration strategy of the search tree in sphere decoding, we significantly reduce the complexity of detection at the expense of little loss on performance.

理论分析和仿真结果都验证了这种检测算法对长信道时延的适应能力论文最后还对差分空时调制中的多符号检测算法进行了研究，提出了一种降低差分空时调制系统中多符号差分球形译码算法复杂度的方法，通过改进球形译码中搜索树的排序策略，使得系统在牺牲较少性能的基础上大大降低了算法实现的复杂度。

Based on the Laser Doppler technology, Information technology, Image Recognition and Process tenology, the laser image characteritics of ultra-fine and non-spherical particles are studied. The laser image recognition method based on neural network theory are obtained. The associated hardware and computer software for analysis of the shape characteristics are developed. The shape characteristics of typical particles such as fire smoke particle and carborundum are studied by using such method. The results of this project are useful to develop the new reliable, accurate and rapid experimental diagnoses technology.

本项目综合应用激光多普勒技术、信息技术和计算机图像识别处理技术，研究了非球形超细微粒的激光影像形成规律，建立了基于神经网络理论的粒子形状特性测量方法并发展了相应的硬件系统及其计算分析软件，并利用该系统研究了火灾烟雾颗粒、金刚砂等典型非球形超细微粒的形状特性，已初步形成了可靠、准确、快捷的新型实验诊断方法，为进一步发展实用的非接触诊断技术提供条件。

The interaction between concentrated CMC-Na solution and CB[6]could not induce the formation of gel bead.In concentrated CMC-Na solution,floccule was separated out from CMC-Na/CB[6]system and visible with naked eyes after placement.(4) CB[6]can complex with butyl ammonium hydrochloride to form stable pseudorotaxane(CB[6]/BA).

在CMC-Na/CB[6]配合体系中，CMC-Na与CB[6]聚集的纳米粒子形成较慢，需要经过放置才可以形成一些不太规整的球形纳米粒子；CMC-Na的浓溶液与CB[6]相互作用后，CB[6]对CMC-Na分子链的架桥作用要弱一些，在我们的实验条件下也没有象海藻酸钠浓溶液那样，形成球形凝胶粒子，将CMC-Na/CB[6]浓溶液配合体系在室温放置后，体系会出现许多絮状结构的聚集体。

In summary, we used the following tools during this study: 183 degree fish-eye lens, the rotation tripod which takes the lens as the center of rotation and the self-developed software which can transform the fish eye image to the spherical panorama images. The whole spherical panorama images can then be created seamlessly and conveniently for the real estate usage on the Internet and some case studies are shown in this thesis.

总而言之，使用183度鱼眼广角镜头、以镜头为旋转中心的定位云台和将广角影像转换成球形全景影像的制作软体，就可以方便地将某空间各角度的影像撷取至球形全景影像，完整的制作过程可以变得相当简易及平顺，并且基於本研究所制作的房地产实例也证实了本研究的实用性。

These characteristic radiological signs of pulmonary spheral tuberculosis are of great use in the diagnostic work-up of patients with pulmonary spheral tuberculosis and spiral cr. MPR, VR techniques are clinically valuable.

球形肺结核CT表现具有一定的特征性，多排螺旋CT规范的扫描及后处理技术对球形肺结核的诊断具有重要的临床价值。

A novel polymer of Poly(diglycidyl maleate-co-stearyl methacrylate) was synthesized and its structure was characterized by ~1H NMR. Its self-assembly behavior was studied in different solvents. It was found that vesicles and tubule-liked aggregates can be obtained through self-assembly of P(DGMA-co-SMA)/THF/EtOH system. And spheral aggregates were obtained in P(DGMA-co-SMA)/THF/H_2O system while the spheral aggregates were converted into rod-liked aggregates and line-liked aggregates after aged for different time.

合成了带含环氧基侧链和十八烷基侧链的聚(马来酸二缩水甘油酯-co-甲基丙烯酸十八酯)，用~1H NMR对所得的共聚物进行了表征；研究了其在选择性溶剂中的自组装行为，发现P(DGMA-co-SMA)／THF／EtOH体系可以通过自组装形成囊泡形自组装体和支化的管状自组装体，P(DGMA-co-SMA)／THF／H_2O体系最初自组装形成球形自组装体，随着陈化时间的延长，球形自组装体逐渐融合成长条形自组装体和线形自组装体；探讨了自组装过程的机理，建立了可能的自组装过程模型。

Drupe obliquely ovoid to oblong-ovoid, compressed, 3–4.3 × 2–3 cm, densely pubescent, base mostly subtruncate, apex pointed to somewhat obtuse; mesocarp thin, splitting at maturity; endocarp yellowish white to brown, ovoid, broadly ellipsoid, or shortly oblong, asymmetric on both sides, 2.5–3(–4) cm, hard to fragile, ventral suture curved and ± acutely keeled, dorsal suture generally straight, surface smooth and pitted with or without shallow furrows, base obliquely truncate to orbicular-truncate. Seed sweet or bitter.

花柱长于雄蕊核果的斜卵球形到长圆形卵球形，压扁， 3-4.3 * 2-3 厘米，密被短柔毛，多数基于，顶指向稍钝；中果皮薄，成熟时劈开；内果皮淡黄白色的到棕色，卵圆形，宽椭圆形或者不久长方形，不对称的两面， 2.5-3(-4)厘米，对脆，腹面缝硬弄弯和尖锐龙骨状的多少，种子甜的或难以接受。

It was believed that either alumina reacted with impurities in the iron powder or the surface diffusion caved the alumina particles to stick to the iron powder surfaces. Another approach was to use the air classifier mill to break up the sintered iron cakes into powders. The morphology of such particles was classified into 4 types in this study: irregular, equalaxed, near spherical, and flaky. The morphological differences were affected by the extent of sintering. The higher the extent of sintering, the stronger the inter-particle bonding.

此外，本实验利用空气分级气流粉碎机将还原后的烧结体进行粉碎，实验结果显示粉碎后的粉末形貌可以分为四种，不规则形、等轴形、近球形和片形，形貌上的差异是由於还原时铁粉烧结程度的不同，烧结程度越高，粉末间键结强度越强，因此粉碎过程中会产生高程度的塑性变形，以至於粉末形貌越来越接近球形，最后因粉末表面大量加工硬化产生破裂，形成片状碎屑。

A systematic analysis of the icosahedral hierarchic structure in the 3D icosahedral quasicrystal and its approximants have been made. There is an icosahedron at the center surrounded by 12 icosahedra. If two neighboring icosahedra are vertex-sharing, the multi-shell Mackay cluster consisting of 127 atoms will form. If two neighboring icosahedra penetrate into each other, the multi-shell Samson-Bergman-Pauling cluster consisting of 137 atoms will form.

系统地分析了三维二十面体准晶的近似晶体相中具有二十面体对称的等级结构，中心1个二十面体，周边12个二十面体，如两个相邻二十面体共顶点连接，得出的是由127个原子构成的Mackay球形原子簇；如两个二十面体互相穿插，得出的是由137个原子构成的Samson-Bergman-Pauling球形原子簇。

By analyzing the influence of hemisphere pits with different dimension and ellipsoid pits with different aspect ratio on stress and strain distribution of lap joint, the possible propagation of fatigue crack was discussed, and the effects of localized pitting corrosion on the structural integrity of lap joints were discussed.

通过分析不同尺寸的半球形蚀坑和不同长短半轴比值的半椭球形蚀孔应力应变分布的影响，探讨搭接件疲劳裂纹的可能扩展方向，讨论局部孔蚀对搭接件结构完整性的影响。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。