Alternative Policies with Complementary Benefits: Targeting Greenhouse Emissions or Water Recharge on Farming Systems?

Policies introduced to address one environmental objective can often have the side-benefit of also addressing other environmental objectives. This analysis uses a whole farm bioeconomic model to explore the farm level implications, economic and environmental, of a policy initially designed to reduce greenhouse emissions. We model a regulatory policy which imposes an upper limit on farm greenhouse emissions but allows trees to be used as carbon sinks to offset emissions. The implementation of this policy causes a reduction in whole farm profit, but in addition to decreasing emissions it also decreases groundwater recharge from the farming system and therefore contributes to the prevention of dryland salinity. The analysis compares this approach with using a recharge restriction policy to achieve recharge and emissions reductions. The analysis finds that the position of trees in the landscape affects the extent to which groundwater recharge can be reduced for a given reduction in emissions and that there is a three-way trade-off between profit, emissions reduction and recharge.Environmental Economics and Policy,

Basic Studies in Space Vehicle Attitude Control Tenth Semiannual Status Report, Period Ending Jun. 1966

Nonlinear optimal control of planet-pointing space vehicle, basic methods for attitude control, and satellite orbit theorie

Basic studies in space vehicle attitude control Ninth semiannual status report

Space vehicle attitude control systems - manned space station, satellite in elliptic orbit, and solar perturbation of Mars Orbite

Effective polar potential in the central force Schrodinger equation

The angular part of the Schrodinger equation for a central potential is brought to the one-dimensional 'Schrodinger form' where one has a kinetic energy plus potential energy terms. The resulting polar potential is seen to be a family of potentials characterized by the square of the magnetic quantum number m. It is demonstrated that this potential can be viewed as a confining potential that attempts to confine the particle to the xy-plane, with a strength that increases with increasing m. Linking the solutions of the equation to the conventional solutions of the angular equation, i.e. the associated Legendre functions, we show that the variation in the spatial distribution of the latter for different values of the orbital angular quantum number l can be viewed as being a result of 'squeezing' with different strengths by the introduced 'polar potential'.Comment: This is an author-created, un-copyedited version of an article accepted for publication in European Journal of Physic

Scattering in Noncommutative Quantum Mechanics

We derive the correction due to noncommutativity of space on Born approximation, then the correction for the case of Yukawa potential is explicitly calculated. The correction depends on the angle of scattering. Using partial wave method it is shown that the conservation of the number of particles in elastic scattering is also valid in noncommutative spaces which means that the unitarity relation is held in noncommutative spaces. We also show that the noncommutativity of space has no effect on the optical theorem. Finally we study Gaussian function potential in noncommutative spaces which generates delta function potential as $\theta \to 0$.Comment: 7 Pages, no figure, accepted for publication in Modern Physics Letters

Landing-gear impact

Report deals with the impact forces in landing gears. Both the landing impact and the taxiing impact have been considered, but drag forces have so far been excluded. The differential equations are developed and their numerical integration is shown, considering the nonlinear properties of the oleo shock strut. A way is shown for determining the dimensions of the metering pin from a given load-time diagram. A review of German literature on landing-gear impact is also presented

IS standards in designing business-to-government collaborations.

IS STANDARDS IN DESIGNING BUSINESS-TO-GOVERNMENT COLLABORATIONS. Elaborating the impact of standards on inter-organizational collaborations, inter-organizational studies demonstrated a standard’s positive impact on the collaboration between governmental and business partners. How and under which conditions information systems (IS) standards contribute to the effectiveness of business-to-government (B2G) collaborations in customs management is the topic of this thesis. Chapter 2 provides the theoretical and methodological background of the thesis. It illustrates how standards research emerged under institutional conditions such as actor types, linkages and social structures. With the case study in Chapter 3, the thesis introduces a reference framework that gathers different aspects in three pre-selected international business-to-government collaborations. Describing the cases that are subject to the export from EU to non-EU countries a diagnosis of B2G collaborations and relevant elements for the design of the artifact is conducted. A diagnosis of related work in the field of B2G collaborations is provided in Chapter 4. The assessment of collaboration forms revealed necessary constructs of a procedure model and institutional steps necessary to form B2G collaboration as such. Chapter 5 distils related work of IS standards research. In Chapters 6 and 7 considerations from the previous chapters lead to the core part of the thesis, the design and build of a procedure model to institutionalize B2G collaborations, the B2G Procedure Model (B2GPM). The results from the first round of design, the building blocks for B2G collaborations, are subject to Chapter 6. They conclude in a set of design principles of the B2GPM that are being introduced in the chapter. Chapter 7 covers the second round of design by refining the elements of B2G collaboration and the design principles. It continues with the design of the B2GPM. The composition, description, and documentation of the procedure model are the core part of this chapter. Chapter 8 is dedicated to the question of required organizational adoption to deploy the B2GPM. The model is seen as a procedural innovation by which B2G collaboration in customs management can be further improved. The applicability of the B2GPM is based on a series of evaluation cycles and results in the provision of influencing factors of organizational adoption.

Food for Thought: Intellectual Property Protection for Recipes and Food Designs

As any chef will tell you, cooking and food preparation is a creative, sometimes innovative, endeavor. Much thought and time is invested in selecting ingredients, developing the process for preparing the dish, and designing an interesting or appealing look and feel for a food item. If this is true, then it should come as no surprise that recipes, food designs, and other culinary creations can be protected by various forms of intellectual property, namely: trade secrets, design and utility patents, trade dress, but usually not copyright. This article considers how intellectual property law has been applied to protect recipes and food designs, along with broader issues relating to how these rights may overlap and their implications for competition