在进行中的

Equidistance point and difference theory in theory of function approximation are studied. Meanwhile, the relation among difference, difference quotient and derivate is revealed. By drawing Lagrange's and Cauchy's theorem of mean on difference and Taylor's formula into difference function, four theorems, such as Lagrange's theorem of mean on difference, are concluded in simple way. On the basis of these conclusions, the asymptotic property of middle point is studied, a series of new conclusions are drawn and the discussions on the asymptotic property of middle point in differential mid-value are summarized.

对函数逼近论中等距节点和差分理论进行了研究，揭示了差分、差商与导数之间的联系；将Lagrange中值定理、Cauchy中值定理、Taylor公式引入到差分函数中，简明地推导出Lagrange差分中值定理等4个定理，并在此基础上对"中间点"的渐近性进行了研究，得出了一系列"中间点"的渐近性的结果，概括了有关文献对微分中值公式的"中间点"的渐近性的讨论；给出的引理改进了函数逼近论的证明方法，精简了函数逼近论中的一些内容。

In addition this paper,"Bio-Rad method," two parasitic wasps of the post-embryonic development the process of protein accumulation in young bees and the host Plutella xylostella in this process in vivo haemolymph protein content were measured and found that over time, was gifuensis parasitic larvae of the diamondback moth haemolymph protein content showed an upward trend in nearly a straight line, Ichneumonidae parasitic For example, in the early parasitic diamondback moth haemolymph protein content also showed the trend of slow growth, but in the mid-and late parasitic young bee about to be completed in the development of the host body when to stop feeding, a significant downward trend却呈, and significantly lower than the third day of its own protein content; on the same day of the different species of the diamondback moth parasitic wasp hemolymph protein content compared Ichneumonidae Parasitism of diamondback moth have hemolymph protein content than in the third and fourth day after the parasitic Braconidae hemolymph content to be high, but very different in the case of the fifth day, as evidenced by her side after the parasitic bee moth haemolymph protein content is cocoon of the parasitic bee hemolymph protein content of 0.7 times.

另外本文采用"Bio-Rad法"对两种寄生蜂胚后发育过程中幼蜂蛋白积累及寄主小菜蛾在此过程中体内血淋巴蛋白含量进行了测定，结果发现随时间的推移，被茧蜂寄生小菜蛾幼虫的血淋巴蛋白含量是呈近直线增加趋势，而对于姬蜂寄生来说，在寄生初期小菜蛾血淋巴蛋白含量也呈缓慢增长趋势，但在寄生中后期，幼蜂即将完成在寄主体内的发育取食停止时，却呈大幅下降趋势，且明显低于其自身第三天的蛋白含量；对同一天的被不同种寄生蜂寄生的小菜蛾血淋巴蛋白含量进行比较，姬蜂寄生过的小菜蛾血淋巴蛋白含量在第三天和第四天均比茧蜂寄生后的血淋巴含量要高，但在第五天的情况大不相同，表现为被姬蜂寄生后的小菜蛾血淋巴蛋白含量是被茧蜂寄生的血淋巴蛋白含量的0.7倍。

The preparing process is described as follows:(1) the raw materials are dispersed in the solvent;(2) the solution is arranged between two electrodes;(3) alternating current with a voltage of 5 V-100V and a frequency of 10Hz-1000Hz is applied to both ends of the electrodes for 5minutes to one hour;(4) the product obtained after being washed with deionized water and pump filtrated or after centrifugal treatment is dried by being heated to 40 centigrade to 100 centigrade to get the nanometer grain, wherein the raw materials in the first step are micrometer materials or nanometer materials such as sulphide, selenide, telluride and oxide; without special requirement on shape or appearance, the materials can be in the shape of a rod, a fork, a star, a block or a sphere; the solvent in the first step can be water, ethanol, acetone, benzene or tetra chloromethane.

步骤为：1将原料分散于溶剂中；2使制成的溶液处于两电极之间；3在电极两端的加交流电，电压为5V-100V，频率为10Hz-1000Hz，时间为5min-1h；将产物用去离子水洗涤、抽滤，或进行离心处理后；4将所得到产物加热到40～100℃进行干燥，得到纳米颗粒。步骤1中原料为硫化物、硒化物、碲化物、氧化物等微米或纳米材料，其形貌不限，可以为棒状、枝状、星状、块状、球形等多种形状。步骤1中的溶剂可以为水、乙醇、丙酮、苯或四氯化碳。

The drying process of chrome liquor was studied. The structure and property of chrome complex reducing by alcohol were analysed and tokened by many present well-rounded separation and analysis methods such as IR, UV-Vis Spectrum, IEC and pH potentiometry. Application tests of chrome tanning agents were conducted and tanning methods of tanning at high pH were studied. A systematic study was conducted on high alkalinity chrome tanning agents application in leather making process and possibility of clean chrome tanning was discussed.

本文系统地研究了多种小分子醇与重铬酸盐之间的氧化-还原反应，对反应过程进行了认真的剖析；对铬鞣液的干燥过程进行了研究；用红外光谱法、紫外及可见分光光度法、离子色谱法以及pH电位滴定法等多种比较成熟的现代分离分析方法相结合，对醇还原铬配合物的结构与性能进行了分析与表征；对铬鞣剂的鞣革性能进行了应用实验，研究了醇铬鞣剂在高pH值下的鞣制方法，并就高碱度铬鞣剂在制革过程中的应用进行了系统研究，探讨了用其实施清洁化铬鞣的可能性。

The drying process of chrome liquor was studied. The structure andproperty of chrome complex reducing by alcohol were analysed and tokened by manypresent well-rounded separation and analysis methods such as IR, UV-Vis Spectrum,IEC and pH potentiometry. Application tests of chrome tanning agents wereconducted and tanning methods of tanning at high pH were studied. A systematic studywas conducted on high alkalinity chrome tanning agents application in leather makingprocess and possibility of clean chrome tanning was discussed.

本文系统地研究了多种小分子醇与重铬酸盐之间的氧化-还原反应，对反应过程进行了认真的剖析；对铬鞣液的干燥过程进行了研究；用红外光谱法、紫外及可见分光光度法、离子色谱法以及pH电位滴定法等多种比较成熟的现代分离分析方法相结合，对醇还原铬配合物的结构与性能进行了分析与表征；对铬鞣剂的鞣革性能进行了应用实验，研究了醇铬鞣剂在高pH值下的鞣制方法，并就高碱度铬鞣剂在制革过程中的应用进行了系统研究，探讨了用其实施清洁化铬鞣的可能性。

Objective To study the diagnostic value of adenosine deaminasein all kinds of the pa-tients with liver disease.Methods 212patients of hepatitis in our hospital were selected,135cases were male,and75were female,the average age was（39.6±5.2）years old,in other hand,100blood donors were selected as con-trol group,the value of ADA and the conventional item such as GGT,ALT were determining and a contradistinctive analysis were conducted.Results The item of ADA and the conventional item such as GGT,ALTwere not different in the patients of different kind of liver disease,especially in the patients of chronic persistent hepatitis and chronic active hepatitis,the value of positive rate were92.0%and28.9%,respectively.

目的 测定各类型肝脏疾病病人血清腺苷脱氨酶（adenosine deaminase，ADA）活性值，分析ADA测定结果在各种肝脏疾病中的不同变化，评价ADA测定在肝脏疾病诊断中的应用价值；方法以在我院感染科住院肝炎病人共212例为检测对象，其中男性135例，女性75例，平均年龄（39.6±5.2）岁，以献血员100例为正常对照，对其ADA测定结果进行统计分析，并与传统肝功能检测项目做对比研究；结果 ADA和传统肝功能检测指标在不同类型肝脏疾病中测定值和阳性率各有所不同，特别在慢性活动性肝炎、慢性迁延性肝炎中的阳性检出率有显著不同，分别为92.0%和28.9%，有显著差异（P.01）。

The method, which is capable of effecting very good separation of phenol and the 3 cresol isomers under the same chromatographic conditions, can be used to determine phenolic compounds in phenolic tar by external standard, and to analyze these compounds in the toxic leaching solution of the tar.

摘 要：建立了酚焦油中酚类物质质量分数测定和浸取毒性测定的气相色谱法，此法可以在同一色谱条件下对酚焦油中的苯酚及邻、间、对甲酚实现很好的分离，利用外标法分别进行定量分析，并对酚焦油浸取液中相应组份进行测量。

The paper researched volatility of heavy metals and SO3, Cl in fly ash at high temperature and made a dynamic detection for decompound and volatility of substance of fly ash in calefactive process by Thermal Gravity, Differential Thermal Analysis and Infrared Absorption Spectrometry.

本文对在高温下飞灰中的重金属和SO3、Cl的挥发情况进行了研究，并采用动态热重-红外-差热分析对飞灰在升温过程中，物质的分解挥发情况进行了动态跟踪。

During the calculation the results got by quintic spline kernel was the best so it was chosen as the proper kernel for the SPH simulation. By comparison of the simulation results got by SPH and finite volume method, it was proved that the buffer cells method proposed in the SPH simulation to implement the Dirichlet boundary conditions was accurate, and this is of great importance for the simulation of flows pass a pipe. At last, the SPH method was improved to simulate the liquid-solid two phase flows and the results show that this method was appropriate for the simulation of flows containing viscous fluid and macroscopic solid components. Now the two methods are both able to predict the continuum flows and rarefied flows severally, but the hybrid program still has some aspects to be improved.

首先用标准算例验证了SPH方法的理论模型和计算程序的准确性；通过比较确定选用五次样条核作为计算低雷诺数下的粘性连续流动时的核函数；采用SPH方法和有限体积法分别对同一管道流动进行了对比计算，证明了本文提出的边界缓冲区方法在实现SPH方法中的流体边界条件时的有效性，解决了SPH方法模拟管道流动时的一个关键问题；巧妙地使用SPH方法对化工分离流动中常见的固液两相流及固液耦合作用进行了模拟尝试，获得了较好的结果；在跨尺度计算方面，目前两个子程序已经能够分别模拟连续的和稀薄的二维管流问题，二者的耦合计算程序还处于调试和优化阶段，各个参数对于计算精度和计算速度的影响规律仍在探索中。

First scanning the known handwriting materials then number them ,In pretreatment, we convert the valid part of the image into a standard size, as images carries out duotone and go throw off chirp handling in order to achieve better effect.draw features from the known handwriting materials with the Co-occurence,especially,we divided a copy of handwriting into 25 little pieces with the size of 128*128 ,drawing features from every little piecese with four directions(0 degree, 45 degrees, 90 degrees as well as 135 degrees) and calculate the four major feature values( veins and the statistical quantity of veins contrast and the statistical quantity of veins consistency Shang the statistical quantity of statistical quantity as well as the veins correlation of gray scale ), preservation all the feature value that drawn from all known ma terials to the handwriting characteristic database,then input the unknown handwriting materials, also using the method of the Co-occurence to draw those features, recycling the minimum European Distance law match the unknown writing material feature value with the handwriting characteristic feature database, export the label of the known hand writing materials which is most similar to the unknown material with minimum European Distance, and then we can confirm who is the author of the unknown material.

首先将笔迹材料作为图象扫描输入，并对其进行编号。预处理部分可将笔迹图象的有效部分规范化到一个统一尺寸，接着对其进行二值化和去除噪声的处理，以便于更好的提取图像的特征。在此我们采用了灰度共生矩阵法提取手写笔迹材料的纹理特征，与以往有所不同的是，我们将一份手写材料分割成64块大小为80*80象素的子图象，每个小块都从四个方向（0度、45度、90度以及135度）来更全面的提取特征，并计算出四个最主要的特征值（纹理一致性的统计量、纹理反差的统计量、纹理熵的统计量以及纹理灰度相关性的统计量），将从所有已知材料提取的特征值保存到纹理特征库中，对于待检手写材料，同样采用灰度共生矩阵的方法提取其纹理特征，再利用最小欧氏距离分类法将从待检手写材料中提取的特征值与纹理特征库中的特征值进行比对，与欧氏距离比对值最小的相匹配，输出匹配成功的原材料的标号，进而识别出待检材料书写者的身份。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。