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排序方式: 共有134条查询结果,搜索用时 15 毫秒
1.
现在的软件产业中主要是面向市场开发和定制开发这两种形式.本文通过分析在面向市场软件开发和定制软件开发中影响成功的元素和讨论项目计划与项目结果的关系来总结在做软件项目计划时各自需要重视和强调的部分。 相似文献
2.
罗亚玲 《电脑编程技巧与维护》2011,(8):18-19,31
Web系统在应用过程中经常会遇到大量数据的查询,设计时如何在数据服务控件中进行分页显示,这是常碰到的问题,介绍通用自定义分页的设计思路,并对代码的设计进行了详细的分析。 相似文献
3.
运维管理平台工作流引擎设计 总被引:1,自引:0,他引:1
论述在运维管理平台设计中针对业务发展对系统功能的不断要求引入工作流引擎.实现方便地创建公文流程,不需要编写任何代码;方便地构建业务流程,并能无缝融合到现有的IT服务流程中;方便流程配置、管理,通过图形化工具来确定流程的定义功能,方便流程的变更. 相似文献
4.
本文以嵌入式应用为背景,提出了一种基于NIOSII的指纹采集系统设计方案,给出了该系统的硬件设计结构和软件算法,并利用NIOSII定制指令来加速实现指纹图像预处理算法。实验结果表明,该系统能够有效采集指纹数据,实时处理并获取指纹有用信息,提高指纹图像增强的效果和速度。 相似文献
5.
Hamid Noori Farhad Mehdipour Kazuaki Murakami Koji Inoue Morteza Saheb Zamani 《The Journal of supercomputing》2008,45(3):313-340
To improve the performance of embedded processors, an effective technique is collapsing critical computation subgraphs as
application-specific instruction set extensions and executing them on custom functional units. The problem with this approach
is the immense cost and the long times required to design a new processor for each application. As a solution to this issue,
we propose an adaptive extensible processor in which custom instructions (CIs) are generated and added after chip-fabrication.
To support this feature, custom functional units are replaced by a reconfigurable matrix of functional units (FUs). A systematic
quantitative approach is used for determining the appropriate structure of the reconfigurable functional unit (RFU). We also
introduce an integrated framework for generating mappable CIs on the RFU. Using this architecture, performance is improved
by up to 1.33, with an average improvement of 1.16, compared to a 4-issue in-order RISC processor. By partitioning the configuration
memory, detecting similar/subset CIs and merging small CIs, the size of the configuration memory is reduced by 40%. 相似文献
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Heterogeneous Reactor Modeling of an Industrial Multitubular Packed‐Bed Ethylene Oxide Reactor 下载免费PDF全文
Zeeshan Nawaz 《化学工程与技术》2016,39(10):1845-1857
The one‐dimensional heterogeneous model of an industrial multitubular packed‐bed ethylene oxide (EO) reactor was developed using the equation‐oriented platform Aspen Custom Modeler. Reactor operation was optimized in terms of maximized EO production and selectivity and enhanced safety related to the presence of oxygen in the EO reactor. Good agreement was found between the model results during validation against the available information under identical operating conditions. The model predicts the behavior of the EO reaction and demonstrates the extent of catalyst utilization with product distribution, product yield, by‐product formation, temperature and concentration profiles, over time and along the length of the reactor or catalyst bed. The model sensitivity studies compute the optimum feed flow, oxygen concentration, feed pressure, etc. and suggest the best operational philosophy. 相似文献
9.
Convolutional neural network (CNN) has been widely adopted in many tasks. Its inference process is usually applied on edge devices where the computing resources and power consumption are limited. At present, the performance of general processors cannot meet the requirement for CNN models with high computation complexity and large number of pa-rameters. Field-programmable gate array (FPGA)-based custom computing architecture is a promising solution to further enhance the CNN inference performance. The software/hardware co-design can effectively reduce the computing overhead, and improve the inference performance while ensuring accuracy. In this paper, the mainstream methods of CNN structure design, hardware-oriented model compression and FPGA-based custom architecture design are summarized, and the improvement of CNN inference performance is demonstrated through an example. Challenges and possible research directions in the future are concluded to foster research efforts in this domain. 相似文献
10.
定制软件开发平台的研究与设计 总被引:1,自引:0,他引:1
针对定制软件开发用户需求变动大和生产效率质量不高的问题,指出平台化和构件化是提高软件生产力的有效方法,并设计一个包含业务层、平台内核层、适配器层和数据层的定制软件开发平台。 相似文献