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1.
John C. Hart Gordon W. Lescinsky Daniel J. Sandin Thomas A. DeFanti Louis H. Kauffman 《The Visual computer》1993,9(7):346-355
The pipelined architecture and parallel organization of the AT&T Pixel Machine image computer are described and demonstrated with applications for the visualization of multidimensional fractals, particularly linear fractals and quaternion/ stacked Julia sets. Techniques for pushing the Pixel Machine to its peak abilities are described and apply to more recent parallel image computers as well. 相似文献
2.
Older patients with diabetes mellitus or pulmonary diseases and those receiving immunosuppressive drugs are at an increased risk of infection with environmentally-acquired, opportunistic fungal diseases. Aspergillus most often produces invasive pulmonary or sinus infection in severely immuno-compromised patients. Chronic necrotizing pulmonary and sino-orbital aspergillosis present subacutely and are often misdiagnosed. Mucormycosis classically presents with rhinocerebral disease in diabetic patients with ketoacidosis, whereas pulmonary infection mimics invasive pulmonary aspergillosis and occurs mostly in patients who are neutropenic. Cryptococcal meningitis in the older patient may manifest simply as confusion. Amphotericin B is the preferred initial treatment for all three fungal infections. 相似文献
3.
Two manufacturing standards are discussed and compared, namely, the U.S. Food and Drug Administration's Good Manufacturing Practices and the International Standards Organization 9000 (ISO 9000) series. Conclusions are drawn relative to quality improvement strategies. 相似文献
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Kunsoo Han Robert J. Kauffman Barrie R. Nault 《Information Technology and Management》2008,9(3):181-200
Implementation and maintenance of interorganizational systems (IOS) require investments by all the participating firms. Compared
with intraorganizational systems, however, there are additional uncertainties and risks. This is because the benefits of IOS
investment depend not only on a firm’s own decisions, but also on those of its business partners. Without appropriate levels
of investment by all the firms participating in an IOS, they cannot reap the full benefits. Drawing upon the literature in
institutional economics, we examine IOS ownership as a means to induce value-maximizing noncontractible investments. We model
the impact of two factors derived from the theory of incomplete contracts and transaction cost economics: relative importance
of investments and specificity of investments. We apply the model to a vendor-managed inventory system (VMI) in a supply chain
setting. We show that when the specificity of investments is high, this is a more critical determinant of optimal ownership
structure than the relative importance of investments. As technologies used in IOS become increasingly redeployable and reusable,
and less specific, the relative importance of investments becomes a dominant factor. We also show that the bargaining mechanism—or
the agreed upon approach to splitting the incremental payoffs—that is used affects the relationship between these factors
in determining the optimal ownership structure of an IOS.
相似文献
Barrie R. NaultEmail: |
8.
The arguments given in this paper suggest that Grover’s and Shor’s algorithms are more closely related than one might at first
expect. Specifically, we show that Grover’s algorithm can be viewed as a quantum algorithm which solves a non-abelian hidden
subgroup problem (HSP). But we then go on to show that the standard non-abelian quantum hidden subgroup (QHS) algorithm can
not find a solution to this particular HSP. This leaves open the question as to whether or not there is some modification
of the standard non-abelian QHS algorithm which is equivalent to Grover’s algorithm.
相似文献
9.
Making the ‘MOST’ out of RFID technology: a research agenda for the study of the adoption,usage and impact of RFID 总被引:2,自引:2,他引:0
John Curtin Robert J. Kauffman Frederick J. Riggins 《Information Technology and Management》2007,8(2):87-110
Radio frequency identification (RFID) technology dramatically increases the ability of the organization to acquire a vast array of data about the location
and properties of any entity that can be physically tagged and wirelessly scanned within certain technical limitations. RFID
can be applied to a variety of tasks, structures, work systems and contexts along the value chain, including business-to-business
logistics, internal operations, business-to-consumer marketing, and after-sales service applications. As industry adoption
of RFID increases there is an emerging interest by academic researchers to engage in scholarly investigation to understand
how RFID relates to mobility, organizational and systems technologies (MOST). In this paper, we explore RFID and propose a research agenda to address a series of broad research questions related
to how RFID technology: (1) is developed, adopted, and implemented by organizations; (2) is used, supported, and evolved within
organizations and alliances; and (3) impacts individuals, business processes, organizations, and markets. As with many technological
innovations, as the technical problems associated with implementing and using RFID are addressed and resolved, the managerial
and organizational issues will emerge as critical areas for IS research.
相似文献
Frederick J. RigginsEmail: |
10.
Gediminas Adomavicius Jesse C. Bockstedt Alok Gupta Robert J. Kauffman 《Information Technology and Management》2007,8(2):185-202
We propose a new conceptual model for understanding technology evolution that highlights dynamic and highly interdependent
relationships among multiple technologies. We argue that, instead of considering technologies in isolation, technology evolution
is best viewed as a dynamic system or ecosystem that includes a variety of interrelated technologies. By considering the interdependent nature of technology evolution, we
identify three roles that technologies play within a technology ecosystem. These roles are components, products and applications, and support and infrastructure. Technologies within an ecosystem interact through these roles and impact each others’ evolution. We also classify types
of interactions between technology roles, which we term paths of influence. We demonstrate the use of our proposed model through examples of wireless networking (Wi-Fi) technologies and a business
mini-case on the digital music industry.
相似文献
Robert J. KauffmanEmail: |