Treatment of a femoral fracture with a titanium locking compression plate distal femur (LCP‐DF) in a young donkey

A closed complete mid‐diaphyseal spiral fracture of the left femur in a one‐year‐old donkey was treated with a 4.5 mm titanium locking compression plate distal femur (LCP‐DF)¹. This plate was originally manufactured for human orthopaedics, primarily for femoral osteosynthesis. The LCP‐DF¹ has a distal head plate that was advantageous in this case because the distal fragment was smaller. Post operative radiographs showed optimal femoral reconstruction and a callus was present 3 weeks after surgery. The donkey was sound at the walk and trot 2 months after surgery. Radiographs taken 5 months after surgery showed stable implants and complete healing without complications.     

医用骨水泥和人工韧带在犬髋关节脱位治疗中的应用

为了探索人工圆韧带植入术治疗犬髋关节脱位远期疗效降低的解决办法,选择体重6．5 kg～7．5 kg、年龄1岁左右的3只本地家犬,在使用外科丝线替代圆韧带植入髋关节后,使用医用骨水泥填充和封闭髋臼和股骨孔道,术后通过运动姿态观察、负重力测试、常规 X 线摄片、血清生化项目检测和病理剖检几个方面,分析评估人工圆韧带植入术使用医用骨水泥的效果。结果显示,随着犬肢运动状态逐渐改善,术肢负重力增加;但随着丝线断开或出现退行性关节病,术肢运动肢势改变和负重力降低;骨水泥填充、封闭人工圆韧带孔道效果可靠,关节滑液保持良好,血清重要生化指标均在参考范围。在动物试验基础上,选择医用人工韧带植入和将骨水泥用于犬髋关节脱位临床病例1例,经过9个月的动态观察,术肢运动状态、负重力和髋关节 X 线影像与健肢相比无任何异常。动物试验与临床疗效表明,联合使用医用骨水泥和人工韧带能够很好地重建髋关节结构和功能,维持人工圆韧带植入术治疗犬髋关节脱位的远期疗效。     

断层和裂缝尺度识别的地球物理方法探讨

由于地球物理方法本身受分辨率和保真度的限制,其在断层和裂缝识别上的应用也就有精度和尺度上的差异。为此,可采用不同的方法技术来识别不同尺度的断层和裂缝,即在断层识别上,利用地震剖面和水平切片解释大断层,采用相干分析方法识别小断层;在裂缝识别上,主要采用多方位AVO方法识别大尺度裂缝的发育特征,采用成像测井来识别微小裂缝的特征情况。实际应用表明,上述方法在相应尺度断层和裂缝上的识别效果较好。     

Effects of Mixed Caulis Lonicerae japonicae Extracts on Fracture Healing and Anti-inflammation

This experiment was aimed to study the effects of mixed Caulis Lonicerae japonicae extracts on fracture healing and inflammation. Rabbit right radius fracture model was induced by dental drill in order to study the medicine's effect on fracture healing. Moreover,the contents of Ca,P and alkaline phosphatase in serum were measured to explore the influences of mixed Caulis Lonicerae japonicae extracts on serum biochemical indexes of fractured rabbits.RAW264.7 cell was induced by LPS in order to research the effect of medicine on inflammation. The concentrations of TNF-α,IL-1β,IL-6 and NO were measured by ELISA. The results showed that the rabbit fracture model was successfully prepared by dental drill, and the extracts of Caulis Lonicerae japonicae could increase the levels of Ca and alkaline phosphatase and reduce the P content in the serum of fractured rabbits. The TNF-α,IL-1β and NO levels in RAW264.7 cell induced by LPS were significantly inhibited by the extracts with concentrations ranging from 50 to 200 μg/mL (P<0.05). However, the extracts had no significant effect on the level of IL-6 (P>0.05). These results demonstrated that the extracts of mixed Caulis Lonicerae japonicae could promote the fracture healing and possessed good resistance inflammation effect.     

Analysing the Rockmass Permeation of a Low-medium Radioactive Waste Disposal Field

The fractures distribution and fracture rock mass permeation research is the premise condition that to study groundwater movement and pollutant migration in fracture rock mass in bed rock area, which includes the dominance orientation of fracture that groundwater fluxes in it, the brisk zone distribution of fracture water and the permeability calculation of rock mass. This paper mainly analyzes the fracture distribution and the dominance orientation of fracture and the permeability of a low-medium radioactive waste disposal field based on its rich geologic record. The following results are found through Statistical analysis and comparison calculation.The active zone of fractural water in bed rock is an active channel of active nucleus migration. Tthe headrace fracture of disposition have a dominant orientation. The penetrating coefficient tensor in bed rock fracture is also calculated.     

STRENGTH PROPERTIES OF ROCK MASS WITH BIDIRECTIONAL INTERMITTENT CROSS JOINTS

In this paper,the strength properties of rock mass withrows of intermittent bidirectional cross joints by simulating models arediscussed.Work has been done on finding the failure mechanism of therock mass as well as the influence of joint direction and lateral pressureon tne strength of the rock mass.At the end of the paper,model testresults ahd FEM analyses are presented and strength criteria for thiskind of rock mass are proposed.     

当前国际油气管道工业的发展动向

通过统计和分析第三次国际管道会议发表的论文，对当前国际管道工业的发展问题进行了探讨，这些问题主要包括高压输送和高钢级管材的开发与应和、富气输送和管材的断裂控制、管道的缺陷监测、评估方法、管道完整性管理和管道风险管理等。目前我国在这些方面的研究与国际水平相比，还存在相当大的差距，应进一步加强在这些方面的科学研究。     

辽西山区水文地质特征

本文根据辽西山区地下水的赋存条件,水理性质和水力特征,将地下水划分为4种基本类型:松散岩类孔隙水、碎屑岩类裂隙孔隙水、碳酸盐岩类机溶水和其它岩类裂隙水。在此基础上又着重分析(?)地下水的富水程度,埋藏条件,水质特征和水资源评价。