A simulation of rotor-stator interaction using the Euler equations and patched grids

An unsteady Euler code to study rotor-stator interaction problem was developed. The code uses patched grids that move relative to each other to simulate the motion of the rotor airfoils with respect to the stator airfoils. The Osher integration scheme is used in conjunction with an implicit relaxation approach. The scheme is second order accurate in space and time, and is also TVD in each spatial direction. The numerical results were found to be periodic in time, thus demonstrating the capability of the integration and zonal schemes in simulating periodic time dependent flow. The pressure contours obtained are almost oscillation free because of the TVD nature of the scheme. A new procedure was developed to simulate flows about bodies that move relative to each other. This capability should prove to be very useful in the areas of rotor-stator interaction, propeller-nacelle interaction, and helicopter rotor-fuselage interaction

Who’s Afraid of the APA? What the Patent System Can Learn From Administrative Law

In recent years, widespread dissatisfaction with the perceived poor quality of issued patents has spurred a diverse range of groups to call for reform of administrative procedures. Strikingly, however, most calls for reform pay little attention to principles of administrative law. Similarly, judges (in particular the judges of the Federal Circuit) have treated patent law as an exception to the Administrative Procedure Act, and to administrative law more generally. In this Article, Professors Benjamin and Rai contend that this treatment is doctrinally incorrect and normatively undesirable. Standard principles of administrative law provide the appropriate approach for judicial review in the current system of patent grants and denials. As for proposed reforms, such as the institution of post-grant opposition proceedings, an administrative approach to judicial review is the best mechanism for addressing the collective action/public good problems that inevitably arise in challenges to patent validity. Finally, an administrative approach provides the doctrinally appropriate and normatively desirable institutional foundation for the determinations of economic policy that the patent system should be making

Structuring U.S. Innovation Policy: Creating a White House Office of Innovation Policy

This article begins with a discussion of innovation’s importance to the future well-being of American society. The authors then discuss limitations of the current federal framework for making innovation policy. Specifically, the relative absence of innovation from the agenda of Congress and many relevant federal agencies manifests the confluence of two regulatory challenges: first, the tendency of political actors to focus on short-term goals and consequences; and second, political actors’ reluctance to threaten powerful incumbent actors. Courts, meanwhile, lack sufficient expertise and the ability to conduct the type of forward-looking policy planning that should be a hallmark of innovation policy. Ultimately, their analysis leads to a proposal that President Obama (or Congress, if Congress is willing) create a White House OIP that would have the specific mission of being the “innovation champion” within these processes. The authors envision OIP as an entity that would be independent of existing federal agencies and that would have more than mere hortatory influence. It would have some authority to push agencies to act in a manner that either affirmatively promoted innovation or achieved a particular regulatory objective in a manner least damaging to innovation. We also envision OIP as an entity that would operate efficiently by drawing upon, and feeding into, existing interagency processes within OIRA and other relevant White House offices (e.g., the Office of Science and Technology Policy)

Fixing Innovation Policy: A Structural Perspective

Innovation is central to economic growth and human welfare. Government officials and commentators have recognized this reality and have called for a variety of different substantive incentives for stimulating innovation. But the question of how an innovation regulator should be structured has received little attention. Such consideration is important not only because of the significance of innovation but also because current government innovation policy is so haphazard. There is no government entity that looks at innovation broadly, and the narrower agencies that regulate aspects of innovation policy not only fail to pay systematic attention to innovation goals but often act at cross-purposes with each other. In this article, Professors Benjamin and Rai analyze how government policy on innovation should be structured. Drawing on existing theoretical and empirical work, as well as their own original empirical research, they propose the creation of an entity in the executive branch that would both analyze pending agency action and offer regulatory suggestions of its own. This entity would introduce a new, trans-agency focus on innovation while drawing upon, and feeding into, existing executive branch processes that aim to rationalize the work of disparate federal agencies. This approach, Professors Benjamin and Rai contend, offers a great improvement over existing government institutions while avoiding a costly (and politically infeasible) remaking of the administrative state

Deliberative democracy and the politics of redistribution: the case of the Indian Panchayats

By examining evidence from India, where quotas for women in local government were introduced in 1993, this article argues that institutional reform can disturb hegemonic discourses sufficiently to open a window of opportunity where deliberative democratic norms take root and where, in addition to the politics of recognition, the politics of redistribution also operates

Testing the Framework of Other-Regarding Preferences

We assess the empirical validity of the overall theoretical framework of other-regarding preferences by focusing on those preference axioms that are common to all the prominent theories of outcome-based other-regarding preferences. This common set of preference axioms leads to a testable implication: the strict preference ranking of self over a finite number of alternatives lying on any straight line in the space of material payoffs to self and other will be single-peaked. The extent of single-peakedness varies from a high of 79% to a low of 54% across our treatments that are based on dictator and trust games. Positively and/or negatively other-regarding subjects are significantly less likely to report single-peaked rankings relative to self-regarding subjects. We delineate the potential reasons for violations of single-peakedness and discuss the implications of our findings for theoretical modeling of other-regarding preferences.Other-regarding preferences, social preferences, decision making under risk, single-peaked preferences, experiments

Innovators intent: role of IT in facilitating innovative knowledge practices in social enterprises

With this paper we want to explore further the innovators intent, where social enterprises use imaginative ways to take advantage of information technology to create, share and manage the knowledge pool of their small enterprise. We draw on several perspectives on how information processing needs are addressed, as well as the manner in which IT enables and facilitates sense-making. Studies exploring the role of IT in organisations abound, however our focus is not large organisations but small social enterprises (SEs) and how they use IT to further their business objectives. Hence there is still a lack of understanding on how IT can support the management of knowledge within the context of SEs dealing with different contextual settings influenced by: constant tensions between social and economic objectives, more focus on sustainability than competiveness, limited resources, and high levels of democratic participation. All these conditions manifest themselves in SEs, aiming to tackle social problems, improve communities, people’s quality of life, and environment. To obtain a conceptual and empirical understanding of how IT can facilitate acquisition, conversion and application of knowledge in SEs, we conducted a qualitative study with 21 interviews to owners, senior members and founders of SEs in the UK, underpinned by findings from a quantitative survey with 432 responses. We found how IT was supporting informal practices of knowledge management in SEs, more the recovery and storage of necessary information in SEs, and less the collaborative work and communication among enterprise members. However, it was established that SEs were using different technologies, such as, cloud solutions and web 2.0 tools to manage informally their knowledge. The possible impediments for SEs to support themselves more on IT solutions can be linked mainly to economic and human constraints. These findings elucidate new perspectives of how small and hybrid organisations are supporting their operations using IT and the crucial role of cloud and web 2.0 tools in facilitating informal knowledge management practices