质量控制图在橡胶混炼中的应用

本文研究了橡胶生产的质量控制，用质量控制图实时监控橡胶的生产过程，对生产过程中的异常情况实时报警，并显示异常情况的分析结果，同时编制了程序。本文采用的控制图有Ｘ图，Ｒ图，Ｓ图三种，能识别的缺陷模型有七大类。所研究的模式识别，虽是用于橡胶密炼过程中的质量控制，但是其识别模型的方法即上有普遍性。     

伪不变凸函数的一些性质

引入一种比广义Hessian矩阵更加广泛的一种Hessian矩阵.利用该矩阵讨论了伪不变凸函数及严格伪不变凸函数,得到了它们的一些新的性质.同时,也得到了伪不变凸函数及严格伪不变凸函数的最优解的判别准则.     

一个无处可微的连续函数的证明

在数学史上无处可微的连续函数的发现和研究，把数学分析从几何直观依赖中解 放出来，促进了它的发展．本文构造并证明了一个无处可微的连续函数。     

钢管混凝土双梁节点试验及现场测试

通过钢管混凝土双梁节点的坚向静力加载试验研究，揭示了该节点的受力机理和破坏形态，并通过实际工程的现场试验研究，验证了模型试验的可靠性。证明了双梁节点具有构造简单、受力明确、施工方便、安全可靠的良好性能。     

Key issues on watershed ecological security assessment

Based on analyses of key issues concerning watershed ecological security assessment including the subject, content, and methodology of assessment, this paper points out that ecological security should be assessed dynamically at different levels (e.g. watershed and ecosystem levels) with human being as the main assessment subject. Both the functional security and the structural security must be considered in watershed ecological security assessment. In order to reflect the overall and timely security status of the watershed, the PSR (pressure-state-response) method should be employed. Longitudinal Range-Gorge Region (LRGR) was researched as an example. An index system of watershed ecological security assessment has been proposed, which includes structural index, functional index, pressure and response index, and the state of ecological security is analyzed for LRGR in Yunnan Province.

     

长江口北支沉积动力环境分析

长江口北支为喇叭形准强潮河口,其发育深受地形条件、水动力因素和泥沙来源的制约,并因此而形成了复杂的沉积环境和沉积特征。作者以北支表层沉积物粒度分析资料为依据,阐明长江口北支表层沉积物的分布规律,试用M.Pejrp的新三角图式划分长江口北支的沉积动力环境（相）,以期揭示北支的沉积作用机制,为深入研究长江口北支演变规律及北支的开发治理提供科学依据。     

Value of video-assisted thoracoscopic surgery in the diagnosis and treatment of pulmonary tuberculoma: 53 cases analysis and review of literature

Tuberculoma of the lung is one of manifestations in tuberculosis and usually presents as a solitary pulmonary nodule (SPN). It is difficult to differentiate tuberculoma from SPN by other benign or malignant diseases. At present, the crucial role of video-assisted thoracoscopic surgery (VATS) in diagnosis and treatment of pulmonary diseases has been well acknowledged. Here, we reported 53 patients undergoing VATS resection for tuberculomas in our series. No postoperative mortality was found and only two patients experienced prolonged air-leakage (>7 d) and two had minor wound infections that were recovered after anti-tuberculosis or antibiotic treatment. Anti-tuberculosis chemotherapy from 6 to 12 months was routinely used postoperatively. We conclude that VATS is a satisfactory tool for the diagnosis and treatment of tuberculoma and can also establish a reliable diagnosis for all patients with SPNs.     

深海半潜式平台锚泊系统等效水深截断模型试验设计

以拟在哈尔滨工业大学大气边界层风洞及波浪模拟水槽中进行模型试验的一座工作水深为1 500m的深海半潜式平台锚泊系统为例,缩尺比取为1∶100.介绍深海锚泊系统等效水深截断设计的原理及流程.考虑锚泊线的重力、张力、海流力及弹性伸长,采用分段外推法进行静力分析.基于静力等效原则,在保证锚泊线数目和布置一致的情况下,对其在400m等效水深截断模型进行试验方案设计,满足单根锚泊线和整个锚泊系统静恢复力特性近似相同.采用非线性有限元时域分析方法分别对全水深锚泊线和截断水深锚泊线进行动力分析,比较2种锚泊线在各种环境荷载激励下的动力性能差别,并对二者基于动力特性的等效设计提出改进措施.     

开发多媒体CAI课件的研究与实践

以制作完成的"历代书法名迹欣赏"课件为例,介绍用Authorware4.0开发多媒体辅助教学软件的一些方法和体会.     

荧光假单胞菌产木聚糖酶的纯化和性质

有硫酸铵分级沉淀,葡聚糖凝胶分离技术,对荧光假单胞菌（Ｐｓｅｕｄｏｍｏｎａｓ ｆｌｕ．）所产的半纤维素酶进行分离纯化,得到单一组分的木聚糖酶。通过凝胶电泳法,测得其摩尔式量为３３０００。研究表明,该酶的最适ｐＨ值为６．０,最适温度６０℃。酶的动力学研究测出米氏常数Ｋｍ值为４．７６ｍｇ／ｍｌ。