Improvement of the Fairbanks Atmospheric Carbon Monoxide Transport Model -- A Program for Calibration, Verification and Implementation

Completion Report Prepared for the Research Section, Alaska Department of Transportation and Public FacilitiesIn the early 70s, state, local and federal officials in Fairbanks, Alaska, became concerned with the rising incidence of high carbon monoxide episodes. Because of that concern, the Alaska Department of Highways (forerunner of the Department of Transportation and Public Facilities) and the Fairbanks North Star Borough requested that the Institute of Water Resources undertake a study to develop a computer model capability for understanding the transport of carbon monoxide and other pollutants within the Fairbanks airshed. The work was completed in June of 1976. Two publications (Carlson and Fox, 1976; Norton and Carlson, 1976) describe the initial development, documentation and implementation of the computer model. The model, ACOSP (Atmospheric Carbon monOxide Simulation Program), describes the two-dimensional behavior of pollutants in the atmosphere via solution of the convection-diffusion equation using the finite element method of numerical analysis

Active joints for microrobot limbs

The authors propose an electrostatic actuator for active joints. The active joint consists of two plates, one of which is a bilayer and bent by the bimorph effect. The plates are clamped to each other at one edge. A voltage between the plates leads to a very large field at the clamp where the plates are in intimate contact, thereby producing a force large enough to pull the bent bimorph cantilever beam to the other plate. The design uses an actuator in which large electrical forces acting over a short distance are used to produce large deflections. An appealing application of this actuation principle is seen in active joints for robot arms, e.g. by attaching members to the actuator and by combining two or more active joints and members to form micro robot arms, legs and grippers

Anaheim Regional Transportation Intermodal Center case study By

Inflated ETFE cushions cast a soft, translucent light throughout the great hall, while the additional frit pattern on the outer layer reduces solar heat gainhttps://openscholarship.wustl.edu/bcs/1243/thumbnail.jp

Effects of Thermal Discharge Upon a Subarctic Stream: Completion Report

The work upon which this report is based was supported in part by funds provided by the United States Department of Interior, Office of Water Research and Technology (Project B-020-ALAS), as authorized by the Water Resources Research Act of 1964, Public Law 88-279, as amended; in part by funds provided by the Municipal Utility System of the City of Fairbanks, Alaska; and in part by funds provided by the University of Alaska, Fairbanks

Kinetics of crystal growth from the liquid phase

Imperial Users onl

Cumulonimbus convection and parameterization

Imperial Users onl

The Impact of New Immigration in native Wages: A Cross-occupation Analysis of a Small Open Economy

This paper examines how immigration affects native wages by exploiting an unexpected episode of immigrant influx. The episode happened in Hong Kong, when its government unexpectedly relaxed the restriction on immigration from mainland China in 1993, resulting in a seven-fold increase in the net inflow of Chinese immigrants between 1992 and 1993. We use variation in the employment share of immigrants across occupations for identification. To tackle endogeneity between wages and immigrant inflows across occupations, we use Welch’s (1999) congruence indices, which capture the degree of substitutability between workers from different skill groups, to construct instruments for the prevalence of Chinese immigrants in an occupation. Using micro-level data, our two-stage-least-squares estimates show that a 1 percentage point increase in the ratio of new Chinese immigrants to natives decreases native monthly real wages in the same occupation by 2.8-3.6 percents (controlling for immigrant shocks in similar occupations). Within an occupation, female and more skilled native workers experience more adverse wage impact, reflecting a high switching cost associated with occupation-specific human capital.Immigration, Labor Market Outcomes, Occupation-specific Human Capital

Testing Teacher Trainees By Means Of Closed‐Circuit Television And Mla Film No. 5

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/98337/1/j.1467-1770.1964.tb00775.x.pd

Reviews

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/98134/1/j.1467-1770.1963.tb01438.x.pd