CCD应用中的高速图象数据采集技术

介绍了一种可用于精密光学测量的高速线阵ＣＣＤ图象数据采集系统，给出了系统组成、各单元设计考虑和主要技术指标。     

Restoration of masonry facades, renders and final coats in a severe climate

The restoration of relatively old masonry buildings, 1870-1920, represents about 119930 flats and offices in the 4-5 largest cities in Norway. Driving rain and a severe climate are the key factors for deterioration. The paper describes a case study at the city campus of the University of Oslo.     

Prescheduling policy for real-time concurrency control: A performance evaluation

A new priority management policy, aprescheduling policy, is proposed. This policy can be applied on any conventional concurrency control protocol to schedule a real-time transaction. Costly preemption is avoided by the prescheduling policy, and parsing dataset of a transaction is not needed. Three widely used conventional concurrency control protocols (dynamic two-phase locking, basic timestamp ordering, and optimistic) are incorporated with the prescheduling policy to form three real-time concurrency control protocols. Performance of the three protocols is evaluated from three different viewpoints: database management systems, protocols, and transaction. From a database management system viewpoint, we show the prescheduling policy can improve the performance of protocols by raising thevalid ratio and reducingrestart counts. In general, two-phase locking with the prescheduling policy performs the best in most cases and yields the best choice for concurrency control in a real-time application. Deciding factors that affect performance of each protocol are identified from protocol viewpoint. Some suggestions are given for writing a timely transaction from the aspect of transaction viewpoint.     

光电摆角动态测量原理及其测量系统

本文阐述了用于测量物体摆角及摆心浮动量的光电动态实时测量原理,以及根据此原理研制的光电导弹喷管摆角动态测量系统。     

多功能滚齿机的数字控制系统

本文叙述了以ＳＴＤＰＣ／ＸＴ（或ＰＣ／ＡＴ）机为主要核心构成的滚齿机数字控制系统的结构，软件设计和特点，系统采用混合语言编程，极大地提高了软件设计的灵活性与快速性，也分析了ＣＮＣ系统的加工过程，提出了加工中的软件预处理控制方法，并给出了轴伺服控制的并行算法分析与实现。     

灌溉水库水资源优化调度

以榆社云簇水库为例、以水库灌区多种作物所能达到的最大产值为目标函数，本文研究了一套灌溉水库用水优化调度模型。它包括计划调度模型和实时调度模型两部分，适用于干旱半干旱地区灌溉水量不足的水库的用水调度。     

预付费及后付费融合的业务支撑系统探讨

针对预付费及后付费业务融合如何实现，提出并分析了融合支撑系统的组成、功能结构、流程，对融合支撑中涉及到的重要问题和对现有系统的影响进行了探讨、分析并提出了建议.     

Artistic Surface Rendering Using Layout of Text

An artistic rendering method of free-form surfaces with the aid of half-toned text that is laid-out on the given surface is presented. The layout of the text is computed using symbolic composition of the free-form parametric surface  S(u, v)  with cubic or linear Bézier curve segments  C(t) = {c_u (t), c_v (t)}  , comprising the outline of the text symbols. Once the layout is constructed on the surface, a shading process is applied to the text, affecting the width of the symbols as well as their color, according to some shader function. The shader function depends on the surface orientation and the view direction as well as the color and the direction or position of the light source.     

Physical degradation of genomic DNA of soybean flours does not impair relative quantification of its transgenic content

In this paper, four different physical treatments (microwaves, heating by conduction, sonication and pressure autoclaving) were performed to degrade a pure DNA extract, and their influence on GMO quantification was studied. The aim was to check the hypothesis that processing of agrofood products results in a similar degradation rate for both the transgenic target and the specific target. Indeed we could observe that even if the used physical treatments could lead to a significant increase of C _t values for both transgenic and specific targets, the resulting ΔC _t remained stable. So, the main conclusion of the study is that the aforementioned hypothesis seems valid and thus a physical degradation of DNA will not affect the relative quantitation of the GMO content, provided that both the specific and transgenic targets have very similar size. A second important issue of the experiments performed was that DNA is a very robust molecule as it is extremely difficult to reach a mean size below 100 bp. The study also gives evidence of the importance of using small targets.     

快速Hartley变换在实时相关器中的应用

快速Ｈａｒｔｌｅｙ变换（ＦＨＴ）是离散Ｈａｒｔｌｅｙ变换（ＤＨＴ）的快速算法，它是一种实序的变换，其正反变换具有完全相同的形式。利用ＦＨＴ进行实数据相关可以避免复数运算，特别适用于采和可编程数字信号处理器（ＤＳＰ）来实现的实时相关器。和ＦＦＴ相关算法相比，在保持同样数据吞吐率的情况下，采用ＦＨＴ方法，可显著减少系统所需的高速存贮器，从而，可降低系统的成本。本文讨论了ＤＨＴ的有关性质和ＦＨＴ算法和运