二恶英对环境的污染及其控制技术进展

简述了二恶英的公害性及有关特性;二恶英毒性表示法及二恶英的传播途径。重点介绍了二恶英的形成条件和二恶英的控制技术进展。     

Intrinsic Shape Matching by Planned Landmark Sampling

Recently, the problem of intrinsic shape matching has received a lot of attention. A number of algorithms have been proposed, among which random‐sampling‐based techniques have been particularly successful due to their generality and efficiency. We introduce a new sampling‐based shape matching algorithm that uses a planning step to find optimized “landmark” points. These points are matched first in order to maximize the information gained and thus minimize the sampling costs. Our approach makes three main contributions: First, the new technique leads to a significant improvement in performance, which we demonstrate on a number of benchmark scenarios. Second, our technique does not require any keypoint detection. This is often a significant limitation for models that do not show sufficient surface features. Third, we examine the actual numerical degrees of freedom of the matching problem for a given piece of geometry. In contrast to previous results, our estimates take into account unprecise geodesics and potentially numerically unfavorable geometry of general topology, giving a more realistic complexity estimate.     

互感器常见缺陷分析与对策

对互感器运行中常见的缺陷和故障进行了分类介绍和分析,并提出了预防对策。     

高职数学教学的现状与思路

文对新时期高职数学教学的现状、任务进行了剖析,提出了搞好高职数学教学的一些思路。     

Continuation-Based Multiprocessing Revisited

Higher-Order and Symbolic Computation -     

微型运载系统构成原理的研究

概述国际上微系统研究的现状,探讨微型运载系统的基本组成及其研究内容,指出微型运载系统的研究方法和关键技术,最后阐明深入研究的实际意义。     

电容补偿技术在热释电探测器上的应用

介绍了快响应热释电探测器电容补偿技术的原理和适用范围，给出了探测器／前放组件性能的理论计算结果，用该技术研制的大面积快响应探测器性能有很大提高。     

Revascularized composite grafts with inserted implants for reconstructing the maxilla--improved flap design and flap prefabrication

Leukocyte accumulation and activation are key events in the pathogenesis of inflammatory lung disease. The ability of human airway smooth muscle cells (HASM) to contribute to the inflammatory process by its ability to produce the chemokines interleukin (IL) 8, monocyte chemotactic protein (MCP-1) and regulated on activation, normal T cell expressed and secreted (RANTES) was investigated. Cultured HASM, when stimulated with the pro-inflammatory cytokines IL-1 alpha (0.01-1 ng/ml) or tumour necrosis factor alpha (TNF-alpha, 0.3-30 ng/ml), synthesize and release substantial amounts of IL-8, as assessed by specific immunoassay, bioasssay (elevation of intracellular free calcium in human neutrophils), and upregulation of mRNA. These stimuli also increased MCP-1 production and mRNA expression, but RANTES mRNA expression was not detected at 24 h. The smooth muscle spasmogen endothelin 1 (1 microM) was unable to stimulate IL-8 or MCP-1 release or mRNA expression. These data indicate that HASM may constitute an important source of leukocyte attractants in the inflamed lung, where the inducing stimuli, IL-1 alpha and TNF-alpha, are also likely to be present.     

Darstellung komplexer Szenen mit punktbasierten Multiskalenmodellen

Ohne Zusammenfassung