Chip designs: myths, ideas and opportunities

This article attempts to overview the areas of specialization in which innovative analysis, modeling, and testing strategies for cost-effective and manufacturable integrated circuits can significantly impact electronic systems industries in both commercial and defense sectors. In addition to providing a research foundation for subsequent development, the article identifies several serious technological shortcomings. In the process of such identification, it at tempts to destroy a few myths that hamper the continuing development of chip-design technologies, particularly in the analog integrated circuits and systems arena. The views expressed herein are forged from research experiences and discussions with cognizant university colleagues, and engineering and research consulting problems encountered in local and national industries. They also reflect countless conversations with academic and industrial personnel who either enrolled in short courses or attended invited lectures offered in the United States and in other countries     

Managing to be ethical: debunking five business ethics myths

In the aftermath of recent corporate scandals, managers and researchers have turned their attention to questions of ethics management. We identify five common myths about business ethics and provide responses that are grounded in theory, research, and business examples. Although the scientific study of business ethics is relatively new, theory and research exist that can guide executives who are trying to better manage their employees' and their own ethical behavior. We recommend that ethical conduct be managed proactively via explicit ethical leadership and conscious management of the organization's ethical culture.     

Analogue v Digital: the pros and cons and some facts

There are a number of important issues that need to be discussed when potential CADAC users are contemplating the     

测量精度的五大迷思

前言 对于一个数据采集系统而言,测量精度是评估其性能的一个重要参数,也是科学家们不断努力希望提高的一个指标.在实际应用中,很多工程师都会面临测量精度的各种问题:它与模数转换器的分辨率有什么区别?哪些因素会产生系统的测量噪声?对于工程师而言,又有哪些实用的技巧可以帮助提高这个指标?这些都是值得深究的问题.     

Seven myths about voice over IP

Voice over Internet Protocol (VoIP) is one of the fastest growing and most misunderstood technologies in the world at the moment. Confusion, outdated beliefs and urban mythology reign over such simple issues as how it works, the quality of the calls, and, of course, how much it costs. This paper examines seven existing myths about VoIP. These myths are that: (1) VoIP is free; (2) the only difference between VoIP and regular telephony is the price; (3) the quality of service isn't an issue nowadays because there's plenty of bandwidth in the network; (4) VoIP can't replace regular telephony because it still cannot guarantee quality of service; (5) VoIP is just another data application; (6) VoIP isn't secure; and (7) a phone is a phone is a phone.     

Provisioning of multimedia services in 802.11-based networks: facts and challenges

QoS provisioning in IEEE 802.11 networks is a nontrivial task due to a certain degree of randomness in the contention-based medium access control protocol. The problem often resides in the fact that flows belonging to the same service class use the same MAC parameters regardless of their respective bit rates. Assigning static MAC parameters confines WLAN deployment possibilities, and often leads to throughput fairness rather than perceived QoS fairness. This creates situations where network resources as well as their potential profitability are underex-ploited. Restricting the volume of traffic load carried by the network is a primordial task in order to preserve QoS performances of active multimedia services. In this article we review existing approaches to deliver QoS to real-time services in order to gain thorough insight into inhibiting factors inherent to contention-based 802.11 networks. The emphasis is put on studying the possible means to sustain QoS guarantees, which is of utmost importance for network operators willing to commit theirs underlying resources through service level agreements.     

Framing the problem and making decisions: the facts are not enough

Results of an experiment in which a sample of experienced engineers, scientists, and managers-people who would be expected to be objective decision-makers and who report themselves to be rational decision makers-are influenced by very subtle informational cues are presented. These subtle cues did not alter the object facts in research and development financial allocation decisions, but they did apparently alter the decision-maker's reference point. The cues also altered the degree of risk perceived in the decision scenario. As a result, the decision-makers exposed to different frames made different decisions and reported perceiving different levels of risk in the decision episode     

Five business-model myths that hold companies back

This publication contains reprint articles for which IEEE does not hold copyright. The full-text attachment does not include this article. However, you may purchase the article from the Ask*IEEE Document Delivery Service at http://www.ieee.org/services/askieee/     

MPLS: the magic behind the myths [multiprotocol label switching]

This article reviews the key differences between traditional IP routing and the emerging multiprotocol label switching (MPLS) approach, and identifies where MPLS adds value to IP networking. In various corners of the industry MPLS has been held up as the solution to IP QoS, gigabit forwarding, network scaling, and traffic engineering. Each of these expectations is critically considered in the light of developments in conventional gigabit IP routers. It is shown that MPLS adds the ability to forward packets over arbitrary non-shortest paths, and emulate high-speed “tunnels” between IP-only domains-capabilities critical to service providers who need to better manage resources around their backbones, or who are planning IP VPN services. However, it is also argued that the technology required to support IP QoS and gigabit forwarding is not unique to MPLS. A network of gigabit IP routers or switches may be entirely sufficient for QoS and performance if traffic engineering is not a requirement     

How to prevent mediation from running aground—Also: Busting myths about what arbitrators do

Three recent CPR Meeting sessions are summarized, including panel segments on creative ways for breaking impasse; busting myths about conflict resolution practice, and mediating appeals in the U.S. federal circuit courts.     

The facts about FireWire [serial communication bus]

Aimed today at consumer electronics applications, the author describes FireWire, a fast, cheap, self-configuring serial bus which may eventually consign parallel buses to the scrap heap of history. Flexibility and ease of use are among the bus's strongest points. A device may be plugged into any other conveniently located device-whether energised or not-just so long as no closed loops are formed