A Synopsis of the Coreoidea (Heteroptera) of Michigan

An overview of the species of Coreoidea (Alydidae, Coreidae, and Rhopalidae) found in Michigan is presented, along with identification keys, distribution maps, and relevant literature. New state records for Alydus pilosulus Herrich-Schaeffer (Alydidae: Alydinae), Merocoris distinctus Dallas (Coreidae: Meropachyinae), Leptoglossus corculus (Say) (Coreidae: Coreinae), Leptoglossus oppositus (Say) (Coreidae: Coreinae), and Liorhyssus hyalinus (Fabricius) (Rhopalidae: Rhopalinae) are included

New State Records and Distributional Notes for Some Assassin Bugs of the Continental United States (Heteroptera: Reduviidae)

One hundred sixty-eight new state records are presented for 51 species of assassin bugs found in the United States; distributional and taxonomic notes supplement the records. The current known distribution north of Mexico is provided for each species

An Updated Synopsis of the Pentatomoidea (Heteroptera) of Michigan.

An overview of the 75 species of Pentatomoidea found in Michigan is presented, along with updated identification keys, distributional lists, and relevant literature. New state records for Corimelaena agrella McAtee (Thyreocoridae), Melanaethus robustus Uhler (Cydnidae), Pangaeus bilineatus (Say) (Cydnidae), and Banasa sordida (Uhler) (Pentatomidae: Pentatominae) are included

Computational and theoretical analysis of free surface flow in a thin liquid film under zero and normal gravity

The results of a numerical computation and theoretical analysis are presented for the flow of a thin liquid film in the presence and absence of a gravitational body force. Five different flow systems were used. Also presented are the governing equations and boundary conditions for the situation of a thin liquid emanating from a pressure vessel; traveling along a horizontal plate with a constant initial height and uniform initial velocity; and traveling radially along a horizontal disk with a constant initial height and uniform initial velocity

A Synopsis of the Damsel Bugs (Heteroptera: Nabidae) of Michigan

An overview of the 13 species of Nabidae found in Michigan is presented, along with an identification key, distribution maps, and relevant literature. New state records for Himacerus major (Costa) (Nabinae), Metatropiphorus belfragii Reuter (Nabinae), Nabis americolimbatus (Carayon) (Nabinae), and Pagasa fusca (Stein) (Prostemmatinae) are included

A constitutive model for an overlay coating

Coatings are frequently applied to gas turbine blades and vanes to provide protection against oxidation and corrosion. The results of an experimental and analytical study to develop a constitutive model for an overlay coating is presented. Specimens were machined from a hot isostatically pressed billet of PWA 286. The tests consisted of isothermal stress relaxation cycles with monotonically increasing maximum strain and were conducted at various temperatures. The results were used to calculate the constants for various constitutive models, including the classical, the Walker isotropic, a simplified Walker, and Stowell models. A computerized regression analysis was used to calculate model constants from the data. The best fit was obtained for the Walker model, with the simplified Walker and classical models close behind

Bedrock geology of the northern Columbia Plateau and adjacent areas

The Columbia Plateau is surrounded by a complex assemblage of highly deformed Precambrian to lower Tertiary continental and oceanic rocks that reflects numerous episodes of continental accretion. The plateau itself is comprised of the Columbia River basalt group formed between about 16.5 x 1 million years B.P. and 6 x 1 million years B.P. Eruptions were infrequent between about 14 and 6 x 1 million years B.P., allowing time for erosion and deformation between successive outpourings. The present-day courses of much of the Snake River, and parts of the Columbia River, across the plateau date from this time. Basalt produced during this waning activity is more heterogeneous chemically and isotopically than older flows, reflecting its prolonged period of volcanism

The bond premium in a DSGE model with long-run real and nominal risks

The term premium on nominal long-term bonds in the standard dynamic stochastic general equilibrium (DSGE) model used in macroeconomics is far too small and stable relative to empirical measures obtained from the data - an example of the "bond premium puzzle." However, in models of endowment economies, researchers have been able to generate reasonable term premiums by assuming that investors face long-run economic risks and have recursive Epstein-Zin preferences. We show that introducing these two elements into a canonical DSGE model can also produce a large and variable term premium without compromising the model's ability to fit key macroeconomic variables.