The Experts below are selected from a list of 23481 Experts worldwide ranked by ideXlab platform

Toru Kobayashi - One of the best experts on this subject based on the ideXlab platform.

Thomas Demmelhuber - One of the best experts on this subject based on the ideXlab platform.

  • egypt s moment of reform and its reform actors the variety Capability Gap
    Democratization, 2009
    Co-Authors: Thomas Demmelhuber
    Abstract:

    Since July 2004, Egypt has undertaken a comprehensive economic reform agenda, put forward by ‘newly’ emerging political and economic elites with different sources of legitimization than their predecessors. Economic reforms are accompanied by a limited package of political reforms. Following an actor-oriented approach to the analysis of Egypt's reform process, reform actors are defined by a striking dilemma: Reform actors on behalf of the regime show a comprehensive Capability in designing the reform agenda (‘Capability’) but only half-hearted efforts to seek public support for their reform package (‘variety’). Reform actors from the opposition do have sufficient public support but lack the instruments to alter the reform agenda. This ‘variety–Capability Gap’ results from the specifics of an authoritarian regime that only allows a limited degree of public dissent and participation (controlled pluralism). The degree of regime interference and repression regarding oppositional reform actors provides a clear ...

  • Egypt's moment of reform and its reform actors: the variety–Capability Gap
    Democratization, 2009
    Co-Authors: Thomas Demmelhuber
    Abstract:

    Since July 2004, Egypt has undertaken a comprehensive economic reform agenda, put forward by ‘newly’ emerging political and economic elites with different sources of legitimization than their predecessors. Economic reforms are accompanied by a limited package of political reforms. Following an actor-oriented approach to the analysis of Egypt's reform process, reform actors are defined by a striking dilemma: Reform actors on behalf of the regime show a comprehensive Capability in designing the reform agenda (‘Capability’) but only half-hearted efforts to seek public support for their reform package (‘variety’). Reform actors from the opposition do have sufficient public support but lack the instruments to alter the reform agenda. This ‘variety–Capability Gap’ results from the specifics of an authoritarian regime that only allows a limited degree of public dissent and participation (controlled pluralism). The degree of regime interference and repression regarding oppositional reform actors provides a clear ...

Cochrane Andrew - One of the best experts on this subject based on the ideXlab platform.

  • Modeling Multiphase Flow and Substrate Deformation in Nanoimprint Manufacturing Systems
    The University of New Mexico, 2019
    Co-Authors: Cochrane Andrew
    Abstract:

    Nanopatterns found in nature demonstrate that macroscopic properties of a surface are tied to its nano-scale structure. Tailoring the nanostructure allows those macroscopic surface properties to be engineered. However, a Capability-Gap in manufacturing technology inhibits mass-production of nanotechnologies based on simple, nanometer-scale surface patterns. This Gap represents an opportunity for research and development of nanoimprint lithography (NIL) processes. NIL is a process for replicating patterns by imprinting a fluid layer with a solid, nano-patterned template, after which ultraviolet cure solidifies the fluid resulting in a nano-patterned surface. Although NIL has been demonstrated to replicate pattern features as small as 4 nm, there are significant challenges in using it to produce nanotechnology. Ink-jet deposition methods deliver the small fluid volumes necessary to produce the nanopattern, and drop volumes can be tuned to what the pattern requires. However the drops trap pockets of gas as they merge and fill the template, and due to relatively slow gas dissolution, reduce processing throughput. Capillary forces that arise from the gas-liquid interfaces drive non-uniform Gap closure and the resulting variations in residual layer reduces process yield or degrades product performance. This thesis develops reduced-order models for fluid flow and structural mechanics of the imprint process for NIL. Understanding key phenomena of gas trapping and residual layer non-uniformity drives model development to better understand how throughput and yield can be improved. Reynolds lubrication theory, the disperse type of multiphase flow, and a lumped-parameter model of dissolution unite to produce a two-phase flow model for NIL simulations of 10,000 drops per square cm2. Qualitative agreement between simulation and experiment provides a modicum of validation of this model for flow in NIL simulations. The two-phase model simulations predicts that both dissolution and viscous resistance affect throughput. The coupling of a reduced-order model for 3D structural mechanics with the two-phase flow model enables simulations of drop merger on a free-span tensioned web. Challenges in improving the structural model lead to formulation of a 2D model for which sources of instability are more easily discovered and understood. Inextensible cylindrical shell theory and lubrication theory combine into a model for the elastohydrodynamics of a rolling-imprint modality of NIL. Foil-bearing theory describes the lubrication layer that forms between a thin, tensioned web moving past another surface. Reproduction of the results of foil-bearing theory validates this coupled model and reveals a highly predictable region of uniformity that provides low shear stress conditions ideal for UV-cure. These results show theoretical limitations that are used to construct a processing window for predicting process feasibility

  • Modeling multiphase flow and substrate deformation in nanoimprint manufacturing systems
    UNM Digital Repository, 2019
    Co-Authors: Cochrane Andrew
    Abstract:

    Nanopatterns found in nature demonstrate that macroscopic properties of a surface are tied to its nano-scale structure. Tailoring the nanostructure allows those macroscopic surface properties to be engineered. However, a Capability-Gap in manufacturing technology inhibits mass-production of nanotechnologies based on simple, nanometer-scale surface patterns. This Gap represents an opportunity for research and development of nanoimprint lithography (NIL) processes. NIL is a process for replicating patterns by imprinting a fluid layer with a solid, nano-patterned template, after which ultraviolet cure solidifies the fluid resulting in a nano-patterned surface. Although NIL has been demonstrated to replicate pattern features as small as 4 nm, there are significant challenges in using it to produce nanotechnology. Ink-jet deposition methods deliver the small fluid volumes necessary to produce the nanopattern, and drop volumes can be tuned to what the pattern requires. However the drops trap pockets of gas as they merge and fill the template, and due to relatively slow gas dissolution, reduce processing throughput. Capillary forces that arise from the gas-liquid interfaces drive non-uniform Gap closure and the resulting variations in residual layer reduces process yield or degrades product performance. This thesis develops reduced-order models for fluid flow and structural mechanics of the imprint process for NIL. Understanding key phenomena of gas trapping and residual layer non-uniformity drives model development to better understand how throughput and yield can be improved. Reynolds lubrication theory, the \textit{disperse} type of multiphase flow, and a lumped-parameter model of dissolution unite to produce a two-phase flow model for NIL simulations of 10,000 drops per $\text{cm}^2$. Qualitative agreement between simulation and experiment provides a modicum of validation of this model for flow in NIL simulations. The two-phase model simulations predicts that both dissolution and viscous resistance affect throughput. The coupling of a reduced-order model for 3D structural mechanics with the two-phase flow model enables simulations of drop merger on a free-span tensioned web. Challenges in improving the structural model lead to formulation of a 2D model for which sources of instability are more easily discovered and understood. Inextensible cylindrical shell theory and lubrication theory combine into a model for the elastohydrodynamics of a rolling-imprint modality of NIL. Foil-bearing theory describes the lubrication layer that forms between a thin, tensioned web moving past another surface. Reproduction of the results of foil-bearing theory validates this coupled model and reveals a highly predictable region of uniformity that provides low shear stress conditions ideal for UV-cure. These results show theoretical limitations that are used to construct a processing window for predicting process feasibility

Joey F George - One of the best experts on this subject based on the ideXlab platform.

  • AMCIS - How Does the Rivalry between Firms Explain the IT Capability Gap, Leanness and Performance of Firms?
    2015
    Co-Authors: David E Cantor, Inmyung Choi, Joey F George
    Abstract:

    What is the role of IT Capability in a competitive environment? Does IT Capability contribute to the initiation of strategic actions within firms? To understand the relative position of IT in firms, we calculated the IT Capability Gap. This research has developed a research model in which the IT Capability Gap between two competing firms influences the leanness of a leading firm (Eroglu and Hofer, 2011). Also, we have suggested how the leanness of a firm is related to financial performance (i.e., ROS). Theoretically, this study is grounded in the competitive dynamics perspective (Ferrier et al., 1999), which emphasizes the role of rivalry between two competing firms. We empirically tested the research model using secondary data sets comprising of 322 firm-year panel data from 2002 to 2009. We have concluded that the IT Capability of firms has a critical role to implement lean practices and eventually enhances firm performance.

  • how does the rivalry between firms explain the it Capability Gap leanness and performance of firms
    Americas Conference on Information Systems, 2015
    Co-Authors: David E Cantor, Inmyung Choi, Joey F George
    Abstract:

    What is the role of IT Capability in a competitive environment? Does IT Capability contribute to the initiation of strategic actions within firms? To understand the relative position of IT in firms, we calculated the IT Capability Gap. This research has developed a research model in which the IT Capability Gap between two competing firms influences the leanness of a leading firm (Eroglu and Hofer, 2011). Also, we have suggested how the leanness of a firm is related to financial performance (i.e., ROS). Theoretically, this study is grounded in the competitive dynamics perspective (Ferrier et al., 1999), which emphasizes the role of rivalry between two competing firms. We empirically tested the research model using secondary data sets comprising of 322 firm-year panel data from 2002 to 2009. We have concluded that the IT Capability of firms has a critical role to implement lean practices and eventually enhances firm performance.

Jai Galliott - One of the best experts on this subject based on the ideXlab platform.