多节状SiC晶须的合成及在矿冶工程材料中的应用

运用TEM、XRD等分析检测技术对SiCw的形貌结构、长度与直径分布及其应用于复合材料中的特性进行了检测。研究表明：SiCw产品以直晶为主，表面呈多节状，以-SiC为主要晶型，直径为0.2～1.5m,长度为30～200m。此外，作者对SiCw在矿冶工程材料中的应用进行了展望。     

星点设计-效应面法优选淋必通颗粒的成型工艺

为了优选淋必通颗粒的成型工艺，以成型率、休止角、吸湿率、溶化性4项的总评OD值作为总评价指标，以辅料用量、乙醇体积分数、乙醇使用量作为考察因素，以星点设计-效应面法优选出淋必通颗粒的成型工艺。结果表明，淋必通颗粒的最佳成型工艺条件为m(干膏):m(糊精）为1:1，乙醇体积分数为90.0%，乙醇用量为每10.0 g干膏粉加90.0%的乙醇6.0 g。总评OD值均值为0.740 1，与预测值0.766 3相当。该方法预测性强，稳定性好，制备的淋必通颗粒具有成型率高、流动性好、抗吸湿性强及溶化性好的特点，为该复方制剂的工业化生产提供了理论参考。     

Synthesis and characterization of bifunctional terbium complex-based nanoparticles

Novel bifunctional terbium complex-based nanoparticles were developed using a modified Stber method and a layer-by-layer assembly process. A magnetic core of Fe3O4 nanoparticles was coated with a silica shell to form the first layer. Then a ternary Tb3+ complex (TESPPA-Tb), which acted as a luminescent marker, was covalently bound to the silica surface by stable Si-O-Si bonds. The TESPPA monomer was synthesized by binding pyridine 2,6-dicarboxylic acid to 3-aminopropyltriethoxysilane, which was used as a ligand for coordination with the Tb3+ ions. An outer shell of silica was applied to the nanoparticles to allow for versatility with surface functionalization. The nanoparticles were characterized by X-ray powder diffraction, transmission electron microscopy, Fourier transform infrared spectroscopy, ultravioletvisible spectroscopy, vibration sample magnetometer, and photoluminescence spectroscopy. The bifunctional nanoparticles exhibited favorable superparamagnetic behavior and photoluminescence properties of Tb3+. These nanoparticles have potential applications in biolabeling, bioseparation, immunoassays, and pathogenic diagnosis.     

相邻平方数之间至少存在两个质数的证明

利用点列光照投影原理找到的质数分布规律,证明了相邻平方数之间至少存在两个质数的杰波夫猜想.     

An experimental method for measuring friction behaviors of linear rolling guides

Friction behaviors of linear rolling guides （LRGs） are determined by many factors and are crucial for precision positioning. It is difficult to create an expression to describe the friction behaviors exactly and completely. A new experimental method for measuring the friction behaviors of one LRG individually was developed, and linear motor direct drive technology is utilized in the experiment setup. The position signal is acquired by a grating, and the friction of the LRG is deduced by the product of the mass of the moving part and its acceleration. In the experiment, the LRG can move with the friction only, and the friction transition from normal rolling to pre- rolling stage was detected. The asperities＇ deformations were utilized to explain it. Hysteresis loops and internal loops were measured. The results indicate the non-local memory of the LRG, and the historical trajectory have an important impact on the friction behaviors of LRGs in the pre-rolling stage.     

劈分法轧制H型钢坯的实验研究

劈分轧制法是用连铸板坯生产Ｈ型钢的一种新型轧制方式。本文结合鞍山市第一轧钢厂的具体情况，在实验轧机上采用铅件模拟轧制了Ｈ５００×２００，Ｈ４００×２００的Ｈ型钢异型坯。探索了劈分轧制Ｈ型钢的一些变形规律，证实了此法在该厂生产的可行性。     

无砂混凝土碎石桩加固饱和软粘土地基的方法

提出了一种相对经济的半刚性桩一无砂混凝土碎石桩复合地基，并给出了具体设计计算方法及设计参数，该桩克服了散体桩在饱和软粘土中侧限不足的缺陷，提高了复合地基的承载力，实际工程应用表明，饱和软粘土地基经济该桩加固后，承载力得到显著提高，满足了中，小型工程的设计需要。     

C_(1-x)M_x(M=Al,Si,x=0.1～0.3)复合材料的电化学嵌锂特性

用机械球磨法制备的C／Al、C／Si复合材料可作为镀离子电池的负极活性物质．研究结果表明，C_（0．7）Al_（0．3）和C_（0．8）Si_（0．2）（原子比）分别可以放出406mAh／g、和1039mAh／g的容量，远超过了原料碳的容量284mAh／g．经10次充放电循环、C_（0．7），Al_（0．3）放电容量衰退至251mAh／g．经20次充放电循环后C_（0．8）Si_（0．2）放电容量仍保持为749mAh／g．容量衰退主要是复合材料中包嵌入Al和Si部分容量衰退较快所致．     

生产管理在国际大型钢铁企业的发展

在企业管理中,生产管理是核心,生产部门根据客户定单要求以及设计部门的产品方案与工艺需求,制定周生产计划和日作业计划进行组织生产.主要通过制定随时间变化的动态生产计划和作业计划,以生产作业计划为载体和抓手进行物流控制和物流平衡,目标是没有库存或降低库存,排除一切不产生价值的作业.     

FRP 复合材料及其在工程中应用(英文)

介绍了纤维增强复合材料在北美、欧洲及日本等地的工程应用情况．为便于深入了解，首先回顾有关复合材料的基本特性．详细给出复合材料结构件及其在桥梁、建筑、基础设施、管道、桩柱、桅杆、海洋结构等方面的应用，并指出为什么这些应用中会采用复合材料以及工程结构采用复合材料的利弊得失．