Development of an optimized intumescent coating

Intumescent coatings for small diameter air launched missiles were studied. An aerodynamically smooth, moderately flexible coating, with excellent thermal efficiency was developed

Development of thermal stratification and destratification scaling concepts. Volume 1: Definition of thermal stratification scaling parameters and experimental investigations

The dimensionless parameters associated with the thermal stratification and pressure history of a heated container of liquid and its vapor were examined. The Modified Grashof number, the Fourier number, and an Interface number were parameterized using a single test liquid, Freon 113. Cylindrical test tanks with spherical dome end caps were built. Blanket heaters covered the tanks and thermocouples monitored the temperatures of the liquid, the ullage, the tank walls, and the foam insulation encapsulating the tank. A centrifuge was used for the 6 inch tank to preserve the same scaling parameter values between it and the larger tanks. Tests were conducted over a range of Gr* values and the degree of scaling was checked by comparing the dimensionless pressures and temperatures for each scaled pair of tests. Results indicate that the bulk liquid temperature, the surface temperature of the liquid, and the tank pressure can be scaled with the three dimensionless parameters. Some deviation was, however, found in the detailed temperature profiles between the scaled pairs of tests

Culture Rules: The Foundations of the Rule of Law and Other Norms of Governance

This study presents evidence about relations between national culture and social institutions. We operationalize culture with data on cultural dimensions for over 50 nations adopted from cross-cultural psychology and generate testable hypotheses about three basic social norms of governance: the rule of law, corruption, and accountability. These norms correlate systematically and strongly with national scores on cultural dimensions and also differ across cultural regions of the world. Regressions indicate that quantitative measures of national culture are alone remarkably predictive of governance, that economic inequality and British heritage add to predictive power, but that economic development and other factors add little. The results suggest a framework for understanding the relations between fundamental institutions of social order as well as policy implications for reform programs in transition economies.http://deepblue.lib.umich.edu/bitstream/2027.42/39991/3/wp605.pd

Constructing Gravitational Dimensions

It would be extremely useful to know whether a particular low energy effective theory might have come from a compactification of a higher dimensional space. Here, this problem is approached from the ground up by considering theories with multiple interacting massive gravitons. It is actually very difficult to construct discrete gravitational dimensions which have a local continuum limit. In fact, any model with only nearest neighbor interactions is doomed. If we could find a non-linear extension for the Fierz-Pauli Lagrangian for a graviton of mass mg which does not break down until the scale Lambda_2=(mg Mpl)^(1/2), this could be used to construct a large class of models whose continuum limit is local in the extra dimension. But this is shown to be impossible: a theory with a single graviton must break down by Lambda_3 = (mg^2 Mpl)^(1/3). Next, we look at how the discretization prescribed by the truncation of the KK tower of an honest extra diemsinon rasies the scale of strong coupling. It dictates an intricate set of interactions among various fields which conspire to soften the strongest scattering amplitudes and allow for a local continuum limit. A number of canditate symmetries associated with locality in the discretized dimension are also discussed.Comment: 21 pages, 6 diagrams, 1 figur

Art and First Amendment Protection in Light of Texas v. Johnson

A work of art has been defined as: any human work made with the specific purpose of stirring human emotions; something displaying artistic merit:...all works belonging fairly to the so-called fine arts, painting, drawing, and sculpture

Leaning into CHAOS (Child\u27s Health and Online Safety Act): Revision to FTC\u27s Enforcement of COPPA & New Model Rule for Child Advertising

This article focuses on the need for a new model act introduced by the author (the Child’s Health and Online Safety Act) to amend the Child’s Online Privacy Protection Rule. First, to understand the landscape of existing child privacy protections, this article discusses the historical background of the Federal Trade Commission’s (FTC’s) authority to regulate child advertising. Furthermore, this article illustrates how the current law, the Children’s Online Privacy Protection Rule (COPPA), regulates entities who direct their websites or online services and advertising to children. Next, this article introduces case law that illustrates the weaknesses of COPPA. Finally, the focus turns to adopt CHAOS (Child’s Health and Online Safety Act), which would amend COPPA and strengthen the foundation to protect our vulnerable population. This new act would seek to replace the various shortcomings that COPPA has not yet addressed and would require new broader obligations such as banning targeted advertising to children, stopping the collection of personal information from children in certain regards, and adopting a new scope, expanded definitions, education opportunities, and more that would provide a more appropriate level of protection for children. Congress must, therefore, be called upon to adopt CHAOS and answer the call by lawmakers, parents, the President, and others to enhance the privacy protections for the US’s most vulnerable population and create a new generation of tech-savvy and safeguarded youths