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Three hydroxyapatite powders (HAP1, HAP2 and HAP3) were prepared by hydrolyzation process using brushite, precipitation method using calcium hydroxide and ammonium phosphate and neutralization method using calcium hydroxide and phosphoric acid, respectively. Hydroxyapatite/collagen composite was prepared by in situ precipitation method using calcium hydroxide, phosphoric acid and bovine collagen which was extracted from the fresh bovine tendons.

本研究以相关钙盐、磷酸盐为原料，分别用二水合磷酸氢钙水解法、氢氧化钙-磷酸氢二铵沉淀法和氢氧化钙-磷酸酸碱中和工艺制备了三种羟基磷灰石粉体，分别为HAP1、HAP2和HAP3；并以氢氧化钙、磷酸和从牛腱中提取的胶原为原料通过原位沉淀制备了羟基磷灰石/胶原复合材料。

When analyzing wrinkling and fracture, it is found that the results of the simulation have a better consistency with the results of simulation using real drawhead than using equivalent drawbead of Dynaform. Furthermore, compared with simulation using real drawbead, simulation using equivalent drawbead spends less time on both computation and modeling.

在模拟软件Dynaform中，将建立的拉延筋阻力计算模型作为等效拉延筋使用，模拟分析了表盘座某部件的成形，在分析起皱、破裂等成形问题时，比使用Dynaform自带等效拉延筋更接近使用真实拉延筋模拟的结果，而且，比使用真实拉延筋模拟节省了计算时间及建模时间。

The enterprise"ssustainable development"s ability is the evaluation of the enterprise"s succeed development,using method of ability index;The enterprise"s sustainable development"s coordination is the evaluation of the enterprise"s accomplishment and performance,using method of the grade misty;The enterprise"s support of exterior environment is the macroscopic support evaluation of the enterprise"s development,using the method of EFE and using "property -Hability" to analysis the enterprises advantages ans disadvantages .

企业持续发展能力评价是对企业后继发展动力的评价，采用了能力指数方法进行评价；企业协调性评价是对企业所创造的效绩评价，采用模糊等级评价方法进行评价；外部环境评价是对企业发展宏观支持性的评价，采用外部因素评价矩阵方法进行了评价，并用&资产--负债&分析方法对企业的优势环境和劣势环境进行了进一步分析。

Density Functional Theory method was used to optimize the geometries of 209 PCDE molecules, 209 PBDE molecules and 75 PCDD molecules at the B3LYP/6-31G* level. Using computed structural parameters as theoretical descriptors, the forward stepwise multiple regression technique was adopted to obtain QSPR models of environmental partition properties for these POPs by using GQSARF 2.0 and SPSS12.0 for windows programs. The obtained QSPR models are as follows:(1) QSPR models for predicting subcooled liquid vapor pressure, n-octanol/water partition coefficients lgK_(ow and subcooled liquid water solubilities -lgS_(w,l of PCDEs, of which correlative coefficients (R~2) are 0.988, 0.958 and 0.959 and the root-mean-square-error of estimation are 0.134, 0.116 and 0.327 respectively.(2) QSPR models of lgPL and n-octanol/air partition coefficients lgK_(oa for PBDEs, which both contain three structural parameters. The values of R2 for the two models are both 0.997 while the values of RMSEE are 0.073 and 0.062 respectively.(3) QSPR models of lgKow and–lgS_ for PCDEs, which both have one variable (mean molecular polarizability,α). The values of R~2 for the two models are 0.978 and 0.866 and the values of RMSEE are 0.300 and 0.270 respectively.(4) The molecular structures of 24 substituted naphthaline compounds were optimized using Hartree-Fock and DFT methods at four different levels and the same means was used to obtain four three-parameter (EHOMO, q~+ andα) QSPR models of lgK_. The model at the HF/6-311G** level is the best one of which R2 is 0.9662 and RMSEE is 0.380.(5) QSPR study for environmental partition properties of PCDEs was also performed using position of Cl substitution method in which simple parameters of substitution position were taken as descriptors. The multiple linear regression was performed with GQSARF 2.0 and SSPS 12.0 for windows programs to obtain QSPR models of lgP_L, lgK_ and–lgS_ for PCDEs of which R~2 are 0.991, 0.983 and 0.965 and RMSEE are 0.311, 0.100 and 0.300 respectively.

采用密度泛函理论方法在B3LYP/6-31G*水平上对PCDEs、PBDEs和PCDDs的分子结构进行了全优化计算，以计算得到的量子化学参数作为理论描述符，采用GQSARF 2.0和SPSS 12.0 for windows统计程序进行正向逐步回归分析，建立了这些POPs的环境分配性质的QSPR模型：(1) PCDEs的过冷液体蒸汽压、正辛醇/水分配系数lgK_(ow和水溶解度-lgS_(w，l的QSPR模型，这3个QSPR模型的相关系数(R2)分别为0.988、0.958和0.959，估计的均方根误差分别为0.134、0.116和0.327；(2) PBDEs的lgPL和正辛醇/空气分配系数lgK_(oa的QSPR模型，这两个模型都包含三个分子结构参数，其R~2都为0.997，RSMEE分别为0.073和0.062；(3) PCDDs类化合物的lgK_和-lgS_w的QSPR模型，两个模型都只含一个变量，其R~2分别为0.978和0.866，RSMEE分别为0.300和0.270；(4)采用Hartree-Fock和DFT方法，在4种不同水平上优化计算了24个取代萘系列化合物的分子结构，采用上述同样的方法分别建立了四种水平上的三变量lgK_模型，通过比较得到，在HF/6-311G**水平计算得到的模型最好，R为0.966，RSMEE为0.380；(5)同时，采用氯原子取代位置方法对PCDEs的环境分配性质进行QSPR研究，建立了PCDEs的lgPL、lgK_和-lgS_的QSPR模型，其R~2分别为0.991、0.983和0.965，RSMEE分别为0.110、0.100和0.300。

Firstly, the basic concept of software/hardware co-design and the present research situation worldwide is introduced, the techniques are also discussed separately in the thesis, which is in the system description stage, system architecture design stage, hardware/software design and implementation stage. Secondly, combined with three representative methods of hardware/software co-design systems: POLIS、VULCAN and CORSAIR, the main steps of co-design are studied and analyzed including system description, hardware/software partitioning and hardware/software implementation-synthesis, and some new ideas are given here. Thirdly, UML and modeling technology of embedded systems using UML are described clearly, a handheld terminals is a good example for this, furthermore, the algorithm of how to convert the UML diagram into SystemC codes is mainly concerned on in this thesis. Fourthly, the basic concept of SystemC is described, and the SystemC Modeling platform and simulation mechanism are analyzed, software/hardware co-design methods using SystemC are discussed. Finally, by applying co-design ideas using UML and SystemC, software/hardware co-design system using UML and SystemC is preparatorily implemented, which is to establish a development environment for designing embedded system.

本文首先介绍了软硬件协同设计的基本概念和国内外研究现状，并分别论述了系统描述阶段的技术、系统结构设计阶段的技术、软硬件设计与实现阶段的技术；接着结合POLIS、VULCAN和CORSAIR 三种有代表性的软硬件协同设计方法，对系统描述、软硬件划分、软硬件实现综合等几个主要设计步骤进行了研究与分析，并提出了新的方法和思路；然后详细介绍了UML及基于UML的嵌入式系统建模技术，并以嵌入式手持终端系统来举例说明，重点研究将UML的视图转换成SystemC代码的算法；其次介绍了SystemC的基本概念，分析了SystemC 的建模平台和仿真机制，并对基于SystemC 的软硬件协同设计方法进行探讨；最后应用基于UML和SystemC的软硬件协同设计的设计思路，初步实现基于UML和SystemC的软硬件协同设计的设计系统，目的是建立一个用于嵌入式系统设计的开发环境。

By using isopropyl benzene as the internal standard material, using Agilent 1100 HPLC, using methanol-acetonitrile-water as mobile phase ,using three-component grade elution program, the components that contain benzene such as TALD,PT,4-CBA,TA,BA,PX and internal standard material isopropyl benzene in liquid phase product was analysed. Shimazu6A GC was used to analyse the solvent acetic acid and internal standard material isopropyl benzne in liquid phase.

以异丙苯为内标物，应用Agilent1100高效液相色谱仪，用甲醇－乙腈－水为流动相，采用三元梯度洗脱程序分析液相产物中的含苯环组分对甲基苯甲醛、对甲基苯甲酸、对羧基苯甲醛、对苯二甲酸、苯甲酸、对二甲苯和内标物异丙苯，应用Shimazu6A气相色谱仪分析液相中的溶剂醋酸和内标物异丙苯。

For preparing for the researches of text digital watermarking and advantaging other researchers" development when using the Chinese mathematical expression theory, this paper designs and realizes a development platform of Chinese mathematical expression. It has been proved by experiments that the platform"s function, execution speed and stability can satisfy the requirements of conversion and operation of enormous data.This research found out that the structure information of Chinese have plenty redundant information that can be used by the Chinese mathematical expression for the digital watermarking, the data embedded can possess better robustness. Based on this finding, this paper designs a kind of text digital watermarking method of embedding watermarking by using Chinese structure, and realizes the method by using the Chinese mathematical expression platform.Considering the watermarking embedding algorithms importance to the robustness of the text digital watermarking, this paper makes fully use of the advantage of the Chinese mathematical expression theory to design a kind of layered text method, which has being realized by using the Chinese mathematical expression platform. The layered text method can handle the text as a solid structure, and the embedding data havepreferable robustness.Finally, based on the researches of the text digital watermarking method and the text layered method, this paper integrates the method of making use of the Chinese structure embedding watermarking with the robust algorithm based on text layered, and realizes a brand-new text digital watermarking method. Proved by lots of experiments, this brand-new method has good robustness and better invisibility.

为了为研究工作做准备和方便其他使用汉字数学表达式理论体系的人进行开发，本文基于汉字数学表达式理论设计实现了一个汉字数学表达式平台，实现了Unicode汉字集中的汉字、汉字数学表达式、汉字的Unicode码之间的相互转化、依据汉字数学表达式提取汉字的结构信息、由汉字数学表达式在非中文平台上不依赖字库显示汉字的图像等功能，使用复合文档技术和流压缩技术进行数据的存储，使用对汉字数学表达式进行二叉树拆分来处理汉字数学表达式中包含的信息，使用自定义哈希函数来提高运行速度，实验证明，该平台功能、速度和稳定性完全能满足大量数据的转化和运算要求；通过研究表明汉字的结构信息中存在大量可使用汉字数学表达式理论加以利用的水印加载空间，加载在该空间的数据可以具有较好的鲁棒性，基于此，本文设计了一种利用汉字结构加载水印的文本数字水印方法，并使用汉字数学表达式平台将其实现；由于水印嵌入算法对于文本数字水印的鲁棒性至关重要，本文充分利用汉字数学表达式理论的优点，设计了一种文本分层的方法，并使用汉字数学表达式平台将其实现，使文本成为一个立体的空间，使嵌入在其中的数据具有更好的鲁棒性；最后在基于汉字数学表达式的文本数字水印嵌入方法的研究和基于汉字数学表达式的文本分层方法的研究的基础上，结合利用汉字结构嵌入水印的方法和基于文本分层的抗攻击文本水印嵌入算法实现了一种全新的文本数字水印方法，经实验证明，该方法有良好的鲁棒性和较好的隐蔽性。

In order to extend the effect and security of image encryption algorithm.An image encryption algorithm is presented based on three-dimension chaotic system and bit-computation.The permutation sequences and binary sequences are generated using three-dimension chaotic system.Firstly,the image is pretreated using chaotic system and permutation transformation,then the pixel's gray value's bit sequences are permuted using the permutation sequences generated before,at last,the pixel's gray value's bit sequences are computed by using XOR operating and the binary sequences.

为了改进图像加密算法的安全性和效率，提出了一种基于三维混沌系统和位运算的数字图像加密算法，利用三维混沌序列的坐标分量分别产生置换序列和二值序列，在对待加密图像进行预处理的基础上，先应用混沌置换序列对预处理的结果图像进行基于灰度值位序列的置换操作，然后再应用产生的二值序列对结果图像的灰度值位序列进行位异或加密运算。

In order to simply the method, we further propose using magnetic stirring with weighted ring in stead of argon sparging; using air-circulated incubator in stead of water bath for better observation and sample collection; using centrifuging in stead of filtration for extract pretreatment; using one phase of simplified bioaccessibility extraction method instead of the two-phase method for a better estimate to the in-vivo method.

爲进一步简化试验方法，建议将开放式反应槽改为密闭式；使用可调速磁力搅拌及具载重环磁石，取代昂贵之氩气搅拌；将水浴温控改为气控式，以利试验观察与采样。此外，小肠相萃取不使用吸附剂，萃取液前处理利用高速离心取代压阻较高之过滤方式。本研究二阶段试验之生物有效性皆低估动物试验RBF，建议可将二阶段胃肠体外试验方法改为单相一阶段生物有效性萃取(simplified bioaccessibility extraction， SBET)试验方法。

In different climate zones in China,analyses the annual energy consumption of an all-air air conditioning system under four operating modes,using fresh air ratio regulations only,using enthalpy recovery wheels only,using both of them and using none of them.

选取哈尔滨、北京、上海等5个建筑气候分区的代表城市，以同一办公建筑为例，分析全空气空调系统在未采用新风比调节及全热转轮热回收装置、仅采用新风比调节、仅采用全热转轮热回收装置和同时采用全热转轮热回收装置和新风比调节四种情况下的全年能耗差异，探讨适合不同地区节能建筑的全热转轮热回收装置和新风比调节的应用方式。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。