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A novel direction of arrival and polarization estimation of electromagnetic vector sensors mounted on the airframe is proposed based on biquaternion. The signal processing model for EM-sensor mounted on the airframe is made by biquaternion and then the eigenvalue decomposition of spectral matrix is obtained by means of the EVD of its quaternion adjoint matrix. The memory requirement for data is reduced, and more accurate estimation result is gotten by deducing the stronger orthogonality constraint between the sin- gal and noise subspaces on the field of biquaternion. The performance of the new algorithm is confirmed through numerical examples.

针对机载电磁矢量传感器阵列DOA和极化参数估计问题，提出了一种基于复四元数估计方法，该算法利用四元数建立机载电磁矢量传感器阵列信号处理模型，然后利用四元数联合矩阵的特征分解得到阵列数据相关矩阵的特征分解，一方面使得计算过程中数据的贮存量大大减少，另一方面通过推导得到信号子空间和噪声子空间在四元数域上的正交性从而使DOA和极化参数佑计的精度更高，仿真证实了本算法的有效性。

However,"JueLanCaiWei" still conveys a multiple meaning more extensive than "Absorption" in terms of learning or studying. Zubin's paintings tell what is regarded by him as an empirical or traditional existence has formed a kind of rhetoric to his paintings, for example, a restrained cynicism of the Ming and Qing Dynasty and even the times of the Republic of China or some conceits conjured upon a primitive thinking mode. No matter which it may be, the understanding of "symbolism" and "allegory" frankly shown by Zubin himself is more his interest in some particular drawing method than the outcome of "plucking" the fruitful tradition. Although he delightfully demonstrates an impressive charm of the traditional language indeed, the symbolic or allegoric meaning of his paintings depends not on the language itself but on some inexpressible secrets in his view of life by means of images.

不过， 作为学习立场的表述，"嚼兰采薇"依旧隐约传达出比"吸收"更大的多义性，祖斌的画作证实：那些被他视作经验或传统的存在，已然构成自己作品图式的某些修辞，譬如一种婉约的明清甚至民国时代的玩世情调，或者部分以原始思维模式臆造的奇思妙想，但无论前者或后者，祖斌所坦言的关于"象征"和"寓意"的理解与其说是他咀嚼或采摘的结果，不如说是他感兴趣的图绘手法，尽管他的确津津有味地在作品中展示了那些令人回味的有关传统语汇的魅力，但其作品的象征性和寓意并不取决于语汇自身所指，而是用图像看待生活时许多令他自己也欲辩难言的隐秘所在。

By virtue of behavior experience in human society and the characteristics of pervasive computing,in addition,according to dynamic transformation discipline between the lag of trust and the anteriority of service,a trust-based model cascade servers is put forward while trust relatiuon establishment,trust degree estimation and update are depicted.The best server satisfied with the user's request is selected out by means of cascade servers to improve the service of quality and efficiency such as multiple evaluation to trust degree dynamically by direct and indirect methods（the third party's recommendation）,which conquers the disadvantage that a singular equipment can't satisfy the request property and blindfold choice of service.

借鉴人类社会行为关系的规律和普适计算环境的特点，依据信任的滞后性和服务的前瞻性矛盾的动态演化规律，提出普适计算环境中信任关系的建立、信任度的衡量和更新以及基于信任的级联服务模型；通过直接和间接的方法动态地对信任程度进行多角度评估，以级联服务的方式从众多可选择的服务目标中筛选出最符合用户要求的服务，克服了单一设备不能完全满足服务请求属性和服务选择盲目性的缺点，提高服务的质量和效率。

The constructed pcDNA3-IL-15 plasmid was identified by Bgl Ⅱ digestion,PCR amplification and sequenceanalysis respectively,to ensure that the hIL-15 cDNA was properly inserted into thevector and the sequence was correct.Then the pcDNA3-IL-15 plasmid was instantlyexpressed in COS-7 cells by means of lipofectamine transfection,and followed by astable expression in Chinese hamster oval cells.8 positive cell colonies wereobtained after the G418 selection,designated CHOA~H cells.

经过BglⅡ酶解分析，PCR扩增鉴定和DNA测序分析，证明IL-15 cDNA已正确插入克隆载体且序列正确后，采用脂质体法，首先将pcDNA3-IL-15重组质粒转染至非洲绿猴肾细胞（COS-7）做瞬时表达，再转染至中国仓鼠卵巢细胞进行稳定表达。

Stone, Whether Or Not Roughly Trimmed Or Merely Cut By Sawing Etc.,Readymade Garment and underwear,Building materials and supplies,Refractory Bricks, Blocks And Similar Refractory Ceramic Constructional Goods, Except Those Of Siliceous Fossil Meals Or Similar Siliceous Earths,Hydrometers, Thermometers, Pyrometers, Barometers, Hygrometers And Psychrometers Etc.; Parts And Accessories Thereof,Converters, Ladles, Ingot Molds And Casting Machines Used In Metallurgy Or In Metal Foundries, And Parts Thereof,Lathes For Removing Metal, Including Turning Centers,Machine Tools, Other Than Lathes, For Drilling, Boring, Milling, Threading Or Tapping By Removing Metal,Machine Tools For Deburring, Honing Or Otherwise Finishing Metal Or Cermets By Means Of Grinding, Abrasive Or Polishing Products, Nesoi,Machine Tools For Planing, Shaping, Broaching Etc., Gear Cutting, Gear Finishing Etc., And Other Machine Tools Working By Removing Metal Etc., Nesoi,Pig Iron And Spiegeleisen In Pigs, Blocks Or Other Primary Forms,Iron And Steel 0 Z' W {-~!

主要进口商品：非电热工业或实验室用炉及烘箱〔包括焚烧炉〕，金属铸造用型箱；型模底板；阳模；型模等；其它金属、金属陶瓷、玻璃、矿物、橡胶和塑料模具，实验室、化学、农业、运输等用陶瓷器，碱金属、碱土金属；稀土金属、钪及钇；汞，花岗岩、玄武岩、砂岩等建筑用石，成衣及内衣，建筑材料及供应品，耐火砖、块、瓦及类似耐火陶瓷建材制品〔但硅质化石粉或类似硅土制的除外〕，液体比重计、温度计、气压计、湿度计等及其零附件，金属冶炼及铸造用转炉、浇包、锭模及铸造机及其零件，切削金属的车床〔包括车削中心〕，切削金属的钻床、镗床、铣床、攻丝机床〔车床除外〕，其它金属或金属陶瓷的磨削、研磨、抛光等精加工机床，切削金属的刨床、插床、拉床、切齿机及其他机床，生铁及镜铁，锭、块或其他初级形状，钢铁

The degradable starch treated by α-amylase was grafted onto methyl acrylate to produce graft copolymer initiated by ammonium cerous nitrate, the degradable film was produced by molten mixing the above copolymer and linear low density polyethylene, the properties of the degradable film were characterized by means of mechanical property testing, SEM, TG analysis and degradation experiment.

将α-淀粉酶降解淀粉在引发剂硝酸铈铵的作用下与丙烯酸甲酯接枝生成共聚物，用该共聚物与线型低密度聚乙烯熔融混炼制成可降解薄膜，通过力学性能测试、扫描电镜、热失重分析和降解性能实验等对其进行表征。

By means of cephalometric analysis and computeraid operative simulation, the best surgical proposal were gained. Results 15 cases were treated by TMJ reconstruction、 Jaw advancement by transplanted with bone graft and ramus sagital osteotomy, and genioplasty, 3 of the cases treated secondarily by Le fort I osteotomy.

采用电脑辅助的诊断和手术模拟及预测系统，获得充分扩展口咽和纠正颌面畸形的最佳手术方案，以TMJ重建、牵引成骨和正颌外科方法治疗患者。

In this paper, a turbostratic CN precursor was prepared by means of pyrolysis of melamine, then it was treated by high temperature and high pressure. The pyrolysis process of melamine, mechanism of hydrogen elimination and the effect of catalysts on pyrolysis of melamine were studied. The crystal structures, bonding states and chemical compositions of CN precursor obtained by pyrolyzing melamine are analyzed by X ray diffraction, burning spectrum, scanning elecron microscope and Fourier transform infrared Spectroscopy.

本文采用三聚氰胺热解法制备了乱层石墨结构的碳氮前驱物并进行了探索性的高温高压实验；研究了三聚氰胺热解的工艺、去氢机理以及催化剂对三聚氰胺热解过程的影响规律；借助 X 射线衍射、燃烧谱、透射电镜和红外光谱等手段，对获得的碳氮前驱物进行了成分、晶体结构、价键结构的分析。

By analyzing the characteristic features of the variations of temperature in the workpiece surface layer during grinding and the thermal inertia of the thermocouple , this paper reviews the reliability of the method recommended by Koya Takazawa of the dynamic temperature measurement by means of the single-wire thermocouple , and presents a method by which the dynamic response ability the instrument for temperature measurement should possess may be approximately evaluated according to the grinding ...

本文通过分析磨削时工件表层温度的变化规律以及热电偶的动态响应能力，对高泽所推荐的单丝热电偶动态测温方案的可靠性进行了论证，并在此基础上提供了有关平磨钛合金与45~#钢时的磨削力与工件表层内部温度分布的实测数据。

Aesthetics owes its name to Alexander Baumgarten who derived it from the Greek aisthanomai , which means perception by means of the senses (see Baumgarten, A.G.).

就大家现在对美学的理解而言，它包括两个部分：一个是艺术哲学，另一个是关于非艺术的对象或现象的审美经验的哲学。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。