Calibration and Lag of a Friez Type Cup Anemometer

Tests on a Friez type cup anemometer have been made in the variable density wind tunnel of the Langley Memorial Aeronautical Laboratory to calibrate the instrument and to determine its suitability for velocity measurements of wind gusts. The instrument was calibrated against a Pitot-static tube placed directly above the anemometer at air densities corresponding to sea level, and to an altitude of approximately 6000 feet. Air-speed acceleration tests were made to determine the lag in the instrument reading. The calibration results indicate that there should be an altitude correction. It is concluded that the cup anemometer is too sluggish for velocity measurements of wind gusts

From art to engineering

This paper describes work which emerged through a need to understand more about the potential of laser surface engineering for use in the creative industries. The method of creation of contemporary jewellery pieces and the resultant ‘Ocular’ jewellery series are described from the points of view of an artist and an engineer. The work demonstrates how laser controlled oxide growth on commercially pure titanium under ambient conditions can be used as an artistic tool by producing even, defined colours or by reproducing a simulation of freehand drawings on a titanium surface. It also asks the question: how different are artists from scientists and engineers

Nonhuman Primate Models of Respiratory Disease: Past, Present, and Future.

The respiratory system consists of an integrated network of organs and structures that primarily function for gas exchange. In mammals, oxygen and carbon dioxide are transmitted through a complex respiratory tract, consisting of the nasal passages, pharynx, larynx, and lung. Exposure to ambient air throughout the lifespan imposes vulnerability of the respiratory system to environmental challenges that can contribute toward development of disease. The importance of the respiratory system to human health is supported by statistics from the Centers for Disease Control and Prevention; in 2015, chronic lower respiratory diseases were the third leading cause of death in the United States. In light of the significant mortality associated with respiratory conditions that afflict all ages of the human population, this review will focus on basic and preclinical research conducted in nonhuman primate models of respiratory disease. In comparison with other laboratory animals, the nonhuman primate lung most closely resembles the human lung in structure, physiology, and mucosal immune mechanisms. Studies defining the influence of inhaled microbes, pollutants, or allergens on the nonhuman primate lung have provided insight on disease pathogenesis, with the potential for elucidation of molecular targets leading to new treatment modalities. Vaccine trials in nonhuman primates have been crucial for confirmation of safety and protective efficacy against infectious diseases of the lung in a laboratory animal model that recapitulates pathology observed in humans. In looking to the future, nonhuman primate models of respiratory diseases will continue to be instrumental for translating biomedical research for improvement of human health

Motives for Mergers in Food Manufacturing

This paper reviews theories that identify motives for mergers, reviews recent empirical research, specifies a model that incorporates alternative motives, and tests the model with data from food manufacturing mergers between 1979 and 1986. Results suggest that capital markets are not efficient, and that mergers are not to redress agency problems. Acquirers paid higher premiums for target firms that have recently had low profitability, and paid higher premiums when the stock market was low. The model explains at best 30 percent of the variation in premiums, suggesting that major explanations for mergers remain as yet unidentified.Agribusiness, Industrial Organization,

Tests of N.A.C.A. airfoils in the variable-density wind tunnel Series 230.

The results of tests of six airfoils having the N.A.C.A. 230 mean line and varying in thickness from 0.06c to 0.21c are presented. These results agree with previous findings in showing that aerodynamically the best section is one of moderate thickness. The data are of value mainly in connection with the design of tapered wings having sections based on the N.A.C.A. 230 mean line

Patterns of population location in Auckland

This paper uses spatial statistical techniques to examine the economic determinants of residential location patterns in Auckland in 2006. The primary empirical focus of this paper is descriptive. We seek to establish the extent to which there are identifiable population subgroups that cluster together within the Auckland Urban Area, and further, to ascertain where these groups mainly live. It confirms previous findings of strong ethnic clustering and identifies clustering by qualification, income, and country of birth. It examines the interaction between incomes, land prices, and population density, and the relationship of land price with access to selected locational amenities.Residential location choice; local amenities; residential sorting

Resisting Memory: The Politics of Memorialisation in Post-conflict Northern Ireland

This article explores practices of memorialisation in post-conflict society, through the case study of the James McCurrie Robert Neill Memorial Garden, located in East Belfast, which has been vandalised on a number of occasions. It notes the similarities between these attacks and Jenny Edkins’ theorisation of resistance at the sites of state memory. In the context of Northern Ireland, however, such resistance serves only to replicate patterns of division, as they seek to re-assert competing historical claims obscured by the memorial. The article therefore turns to the work of Jacques Derrida in order to employ a deconstructive ‘double reading’ of the memorial, which avoids the trap of treating the past as something that can be instrumentally utilised in the present. This deconstructive reading is undertaken in order to suggest a form of resistance to memorialisation which does more than replicate patterns of division through essentialised versions of history