基于FM1702SL的USB接口的RFID读卡器的设计

本文设计了基于FM1702SL芯片的USB接口的RFID读卡器,分析了C8051F320和FM1702SL芯片的结构和应用特点,给出了读卡器具体硬件的设计方案.该读卡器的使用将大大降低读卡器的成本.     

中美直投杂志比较研究

作为免费发行的精美广告杂志,DM在现代社会具有十分重要的传播意义。作为一种消费载体,直投杂志表征着受众的社会身份与群体认同。由于社会经济、文化理念的不同,中美两国直投杂志在认识管理、运作经营上存在着较大的差异。对美国直投杂志成功运作经验的借鉴,可以改善我国直投杂志广告投入、管理运作的一些经营策略。     

电子脑清仪的原理与实现

本文介绍了电子脑清仪的理论技术及设计原理和一种基于DSP技术的设计实现方案,包括系统设计思想、硬件的实现方式和软件流程,并阐述了硬件电路中主要核心元件TMS320F206、TLC32044、AD620的性能和使用方法。     

Innovation in times of financialization: Do future-oriented innovation strategies suffer? Examples from German industry

Shareholder value, short-term strategies, quarterly financial reports, and performance-based remuneration are strong indicators of a financial market-oriented company. It is questionable whether innovativeness and sustainable innovation capabilities can be maintained in times of financialization focused on short-term efficiency instead of free space for creativity and learning. Using the example of established German industrial companies, I examined the extent to which financialization and financial market actors steer innovation strategies and practices. In-depth interviews with companies, cluster managers and banks and reviews of financing data do not reveal a direct influence of financial investors on innovation activities. On the contrary, companies’ managements still have the power to decide how much financial control and standardization they allow for their companies’ innovation practices. The pressure on these German companies to innovate comes from their strong market orientation rather than from financialization.     

Innovation and network multiplexity: R&D and the concurrent effects of two collaboration networks in an emerging economy

This study focuses on the multiplexity of firm R&D networks, and it investigates two types of boundary-spanning networks: the bipartite network between firms and government-sponsored institutions (GSIs), and the traditional firm–firm network. We apply a social network perspective to examine the effects that these kinds of networks have on firm innovativeness, in relation to the effects of the firm’s internal R&D efforts. We define the firm-GSI network as bipartite, and we investigate how the structural characteristics of this network (cohesion and centrality) affect innovativeness. We then decompose the innovational effects of firm–firm networks into two categories (intra- and inter-sector) to distinguish the effects of these collaboration networks. Furthermore, we investigate how these various external collaborative networks interact with a firm’s internal R&D efforts for driving innovativeness. Our empirical study of 420 manufacturing firms in Mexico evaluates evidence from surveys and secondary data. The findings indicate that the structural properties of both firm–GSI and firm–firm networks have positive effects on innovativeness, but firm–GSI network cohesion has a stronger negative interaction with R&D in influencing firm innovativeness. Moreover, intra-sector centrality in a firm–firm network has a stronger negative interaction with R&D than inter-sector centrality does in driving firm innovativeness. We contribute to the literature by integrating insights from the perspectives of network multiplexity, social embeddedness, and resource complementarity in regard to inter-organizational behavior. Our study also provides meaningful guidelines for both managers and policy makers. The study’s findings are robust to concerns of common method bias and alternative model specifications.     

浅析数据挖掘概念与技术

随着信息技术的迅速发展,数据库的规模不断扩大,传统的查询、报表工具无法满足挖掘有效信息的需求,因此,需要一种新的数据分析技术处理大量数据,并从中抽取有价值的潜在知识,文章阐述了数据挖掘技术的产生、概念以及数据挖掘的常用技术.     

SF0020的以太网接入设计

SF0020是8-bit嵌入式网络单片机，它内含10／100Mbps的MAC模块，提供IEEE802．3 MII界面，可与外部的Ethernet物理层芯片DM9161直接连接，实现以太网接入。本文主要介绍了SF0020、DM9161芯片和它们的连接，以及基于TCP／IP协议的软件方案。     

基于DSP与FIFO的多路雷达数据转换系统设计

在处理多路高速雷达信号过程中,数据的采集和存取是最重要的环节之一．由于DSP的工作时钟和A／D的采样速率不同,为了提高DSP的工作效率,避免丢失数据,就采用FIFO作为两者之间的接口．阐述了基于FIFO与DSP的雷达高速数据转换系统的设计思想,并给出了FIFO处理数据的程序流程．     

基于DSP手机流媒体实时图像浏览平台的设计

由于传统的PC机体积大,易受网络病毒攻击,对架设环境要求较高的弊端,本系统设计了基于DSP的手机流媒体实时图像浏览平台,并选用TI公司的TMS320DM642作为主处理器,配合音视频编解码芯片、以太网收发器,实现了四路视频音频的采集、一路视频音频的传输、网络传输、手机实时访问功能,经测试,系统稳定,图像清晰,实时性好。     

基于DSP的嵌入式数字硬盘录像机的硬件设计

本文提出了基于TMS320DM648的数字硬盘录像机的设计方案,详细介绍了嵌入式数字硬盘录像机硬件设计。本系统经多次现场测试,效果良好,符合实际应用的需要。