Money demand in a flexible dynamic Fourier expenditure system (commentary)

Demand for money

A method for the thermal analysis of spacecraft, including all multiple reflections and shading among diffuse, gray surfaces

Computer program for thermal analysis of spacecraft surface

An Experimental Investigation of the Air-Side Convective Heat Transfer Coefficient on Wire and Tube Refrigerator Condenser Coils

This thesis presents the results of an experimental investigation of the convective airside heat transfer from wire and tube condensers. The ftrst law of thermodynamics is applied to the "refrigerant", water in this investigation, flowing through the tubes in order to determine the total heat loss from the condenser. The test section is 910 mm (36 in) wide by 300 mm (12 in) tall; thus the coil is tested in an essentially inftnite stream. During the course of the experiments, the influence of the free stream air velocity ranging from 0.15 rn/s to 2.0 rn/s (0.49 ftls to 6.56 ftls) is established. The angle of attack, n, was varied from - 40 degrees to 40 degrees with the air flow always normal to the tubes ('11= 1t/2) and varied from -20 degrees to 20 degrees with the air flow normal to the wires ('II = 0). A method for , calculating view factors and the radiation heat transfer for wire and tube condensers is derived. The effect of the length of the coil is measered at 0 and -5??angle of attack. In addition, the influence of the ftn efftciency on the heat transfer is investigated and accounted for in the deftnition of the heat transfer coefftcient. The heat transfer data in the inertia dominated regime (Richardson number less than 0.0013) are correlated assuming NUcoil = t(Re, n, 'II)' g( S: ) with the Reynolds number based on the wire diameter. The range of Reynolds numbers covered is 15.7 < Rew < 207.5. The ranges of coil geometric parameters (nondimensionlized by dividing by the wire diameter) covered in this study are: 3.022 < nondimensional tube diameter < 5.134, 18.84 < nondimensional tube spacing < 40.94,2.819 < nondimensional wire spacing < 4.427,53.80 < nondimensional tube length< 143.6, and 207.2 < nondimensional wire length < 500.2. The function is represented by tl(a)??Reh (a) for 'II = 0 and h(a).Rei4 (a) for'll=1t/2. Approximately 1700 tests were performed in this investigation using seven different coils. The ftnal correlation is capable of predicting the data with 2cr equal to 16.7% for Ri < 0.0013. A limited natural convection study is also presented.Air Conditioning and Refrigeration Center Project 4

Scotland as an Optimal Currency Area

Since the Scottish independence movement has reached the point that there will be a referendum on Scottish independence this September, the issue of whether the Scotland is optimal currency areas is very topical.In this paper we review the microeconomic foundations of an optimal currency area. We test these microeconomic foundations. We find that the UK, Scotland and the UK without Scotland meet the microeconomic criteria for a common currency area. While adopting a common currency is ultimately a political decision, these results imply that the broadest of these areas, the UK, is the optimal currency area in the sense of minimizing transactions costs.We do find differences in the UK less Scotland and Scotland economies in loan data. We further find that neither the euro bloc nor the euro bloc including Scotland meet the microeconomic criteria for a common currency area. In the event of a “yes” vote for Scottish independence, the immediate problem facing the Scottish government is to decide on an exchange rate regime that is seen as credible by the financial markets to avoid a flight of capital. How policymakers chooses between alternative exchange rate regimes is currently a topic for hot debate in central banking circles and the process of a monetary union breaking up is a fascinating area worthy of future research

The Use of Flexible Seating in the Elementary Classroom

The purpose of this study was to examine the use of flexible seating in southwest Missouri classrooms. Four research questions guided the study based on the conceptual framework of Eric Jensen. The work of Jensen (2005) was selected as the conceptual framework due to his focus on the use of movement and how it impacts the brain. The research population consisted of 119 school districts from 25 counties in southwest Missouri. Participants in the study included elementary principals and classroom teachers in the first through fourth grades. Of the participants, 107 teachers completed a survey specific to the use of flexible seating. Principals were asked to provide data from thirdgrade classrooms, which included DRA scores from fall, winter, and spring assessments and behavior incident referrals for the school year. The principals also identified the classrooms as utilizing either flexible seating or traditional seating. Survey results indicated overwhelming support for flexible seating, and participants expressed the belief that flexible seating benefits all students academically and behaviorally and is beneficial for students with sensory concerns. The DRA data and behavior incident referrals were compared using a t-distribution chart to determine if any statistical differences existed between flexible seating classrooms and traditional seating classrooms. The individual school data did not reveal a significant difference between flexible seating classrooms and traditional seating classrooms