夸克受激态下的核子结构函数

若夸克确实存在亚结构，可能存在自旋Ｓ＝３２的受激夸克、根据深度非弹性散射理论，我们给出了在夸克受激态下的核子结构函数．     

实用后备式UPS

本提出了一个备用电源线路，本电路既可对电池充电，又可输出一个可控制的电压，输出功率为300W，效率可以达到88%以上。     

Un combineur de puissance à résonateur diélectrique dans la bande 75–110 GHz

This paper presents the utilisation of planar millimeter wavelength whispering gallery dielectric resonators modes for the realization of directional filters and for application to power combination. The different advantages of these resonator modes allow their utilisation in the millimeter wavelength range. The electrical study based on the ring resonator theory permits to predict the theoretical responses of several circuits realised. Finally, experimental results obtained from power combiners in W band will be presented.     

浅谈土料在吹填筑堤施工中的影响

阐述了吹填工程对土料的要求，介绍了外贸堤及东方红堤工程的吹填土料的干密度，总结出几种土料在吹填中的效用，并提出建议。     

M-ZSM-48的合成与物化性能研究

研究了杂原子Ｍ－ＺＳＭ－４８（Ｍ＝Ｂ，Ｇｅ，Ｃｒ或Ｖ）型分子筛在水热体系中的合成条件，并用多种物理化学方法研究了分子筛的比表面、表面酸性、吸附性和热性能等物化性能。结果表明，杂原子进入分子筛骨架，对其性能具有显著影响。     

车载式柴油锤打桩机

车载式柴油锤打桩机主要由随车吊、导杆式柴油锤、液压传动机构和工作机构、打桩架和扶桩臂等组成。打桩时，地锚桩由液动扶桩臂夹持扶正，柴油锤利用柴油在其燃烧室内燃烧产生的能量进行打桩，整个击桩过程由柴油锤自动连续完成。打桩架为两节（主桩架和副桩架）铰接式，可分别满足行驶和打桩两方面的要求。这种打桩机集装卸、拉运、立桩和打桩等功能于一体，全部工序一人操作即可将预制的水泥地锚桩打入地下，工作效率极高。     

砂砾石堤基渗漏涌砂模型

本文将堤基的工程地质条件划分为四种类型，即二元结构型、透水层型、软粘土型和基岩型。对二元结构型堤基，分析了渗漏涌砂的成因，包括承压水头大小、砂砾石层透水性及粘性土厚度、基岩断裂构造、地下水的水文地球化学作用等。在上述分析的基础上，提出了堤基渗漏涌砂的两个理论模型，即均质各向同性砂砾石层中的非完整井和完整井模型。当砂砾石层较厚时，涌砂的发生、发展符合紧靠上覆粘性土层的半球形井底模型，涌砂临界面既向堤防方向发展，也向深部扩展，涌水口的冒沙量主要来自涌水口附近，向深部和堤防方向似层状汇聚并涌出；当砂砾石层相对较薄时，涌砂的发生、发展过程符合完整井模型。涌砂临界面呈椭球柱状，并向堤防方向发展，涌水口的冒沙量来自涌水口附近，但在整个含水层厚度上汇聚并向堤防方向扩展。     

Assessment of conservative load transfer for fluid–solid interface with non‐matching meshes

We present a detailed comparative study of three conservative schemes used to transfer interface loads in fluid–solid interaction simulations involving non‐matching meshes. The three load transfer schemes investigated are the node‐projection scheme, the quadrature‐projection scheme and the common‐refinement based scheme. The accuracy associated with these schemes is assessed with the aid of 2‐D fluid–solid interaction problems of increasing complexity. This includes a static load transfer and three transient problems, namely, elastic piston, superseismic shock and flexible inhibitor involving large deformations. We show how the load transfer schemes may affect the accuracy of the solutions along the fluid–solid interface and in the fluid and solid domains. We introduce a grid mismatching function which correlates well with the errors of the traditional load transfer schemes. We also compare the computational costs of these load transfer schemes. Copyright © 2005 John Wiley & Sons, Ltd.     

Evaluations and Modifications on Reynolds Stress Model in Cyclone Simulations

The prediction performance of the Reynolds stress model (RSM) on the flow field in a cyclone has been validated by using particle imaging velocimetry (PIV) experimental results. The validations mainly focus on two features of the flow information with averaged and fluctuating flow fields, which can mostly reflect the turbulent flow properties in the cyclone. The comparisons between predictions and measurements show that the RSM has good performance on the averaged flow field prediction, especially on the prediction of the mean tangential velocity. However, for the fluctuating flow field, the prediction performance of RSM is rather poor. The predicted root mean square (RMS) velocities are greatly underestimated. The standard model coefficients used in RSM have to be modified to enhance its accuracy when used to predict the fluctuating structure of the strong swirling flow in the cyclone. The recommended model coefficients give much better predictions on the fluctuating flow field than the standard coefficients, without decreasing the prediction accuracy on the mean flow field.     

半导体厂含氟废水处理工程改造

半导体生产废水中氟化物浓度较高，原有除氟工艺为二级加药[石灰、A1（SO）3]、二级沉淀，但出水氟化物不能达标。现将工艺调整为原水与石灰反应后即直接与A1（SO）3反应，再沉淀，同时改善反应条件。在基本不增加总投药量的情况下，出水氟化物浓度可稳定控制在8．0mg／L左右，达到了广东省《水污染物排放限值》（DB44／26--2001）的一级标准。