air research Articles
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Clean air research multi-year plan 2008-2012
The Office of Research and Development’s (ORD) Multi-Year Plans (MYPs) describe what research ORD proposes to accomplish over the next 5-10 years in a variety of areas. The MYPs serve three principal purposes: to describe where the research programs are going, to present the significant outputs of the research, and to communicate the research plans within ORD and with stakeholders and ...
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Find out more about Sir Robert Watson-Watt, who worked at NPL and was the inventor of radar
Sir Robert Watson-Watt started as a meteorologist at the Royal Aircraft Factory at Farnborough with the aim of applying his knowledge of radio to locate thunderstorms so as to provide warnings to airmen. In 1924 he moved to Slough where the Radio Research Station had been formed and in 1927, following an amalgamation with the National Physical Laboratory, he became Superintendent of an NPL ...
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Dropshaft cascades in urban drainage systems
Dropshaft cascades are typical elements of sewer systems in steep urban catchment basins. The design of a dropshaft cascade, which is generally addressed as an optimization problem, also needs to consider the subsequent effects induced on the flow by the different elements of the cascade. Experimental research has been performed at the hydraulic engineering laboratory of the University of ...
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Verification of the meteorological pre-processor MEPDIM
The Norwegian Institute for Air Research (NILU) has carried out a year of direct measurements of standard deviations of wind fluctuations (σv and σw) on an island off the west coast of Norway. These measurements have been used for the evaluation of estimated values based on the meteorological pre-processor MEPDIM. The physical basis for this metprocessor is provided by parameterisation ...
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Does privatisation matter in the efficiency of airline freight transports? Evidence from the European market
Data envelopment analysis in logistics/transportation area has concentrated typically on the ownership effects on efficiency performance in sea and airports. However, transportation service providers, especially in air freight, have remained as un-researched area. Although, same ownership change trend, which started to happen in ports more than two decades ago, have influenced significantly ...
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Base Tests Common Cleanup Solution at Uncommon Site
The Air Force has installed a granular activated carbon (GAC) adsorption system to remove contamination from groundwater at a remote Air Force Research Laboratory (AFRL) Propulsion Directorate ...
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An evaluation of the service quality priorities of air cargo service providers and customers
This paper analyses the differences between the service quality priorities of air cargo service providers and customers. After having identified what constitutes the decisive factors when it comes to air cargo service quality, research was carried out on the differences between the service quality priorities of air cargo service providers and customers. The clear differences between the service ...
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Air pollution and health: Do popular portrayals reflect the scientific evidence?
Environmentalists, regulators, health scientists, and journalists are the main purveyors of information on air pollution health risks. Unfortunately, these groups create the appearance that harm from air pollution is much greater and more certain than suggested by the underlying evidence. The incentives in air pollution health research encourage risk exaggeration, because information purveyors ...
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Air Force Welcomes Comments On Red Rock Biofuels Facility Environmental Assessment
The U.S. Air Force (USAF) Research Laboratory has developed a Draft Environmental Assessment and a Draft Finding of No Significant Impact (FONSI) for the development of the Red Rock Biofuels facility in Lake County, Oregon. The proposed facility is one of three projects awarded a contract under the U.S. Department of Defense’s (DOD) Protection Act to produce drop-in biofuels for military ...
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High–speed rail: will it change the dynamics of US intercity passenger travel?
As both the skies and highways become more crowded, travellers continue to look for cheaper and efficient alternatives. The National Railroad Passenger Corporation, commonly known as Amtrak, faces increased pressure to meet this need. Notorious for failing to meet on–time standards as well as operating consistently at a loss, discussions of the implementation of high–speed rail (HSR) ...
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Experimental investigations of aeration efficiency in high-head gated circular conduits
The primary purpose of water aeration is to increase the oxygen saturation of the water. This can be achieved by using hydraulic structures because of substantial air bubble entrainment at these structures. Closed conduit aeration is a particular instance of this. While there has been a great deal of research on air-demand ratio within closed conduit, very little research has specifically ...
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A study of tyre, cavity and rim coupling resonance induced noise
The tyre cavity resonance induced noise and vibration currently have no effective mass production solutions. All proposed solutions are hard to service and difficult to maintain. Different analysis approaches are presented in this paper to verify computer simulation models. Modal analysis results of the tyre cavity, tyre and rim structures were compared and a complex nature of tyre cavity ...
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Kilogram celebrates its 125th birthday
September 2014 marks 125 years since the birth of the international prototype of the kilogram (IPK). The National Physical Laboratory (NPL) is both celebrating its life to date and looking at the road ahead. The IPK has been the global standard for mass for the last 125 years; it was sanctioned at the first General Conference on Weights and Measures (CGPM) on 7-9 September 1889 in Paris. This is ...
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Air quality and health research in a province producing oil and gas
The Canadian province of Alberta is a major world producer of oil and gas. It is therefore vested in issues of air quality and health, which are in turn driven by fossil fuel combustion. The scientific community within the province provides the capacity to address these issues and in order to remain current needs to be actively engaged in research. Air quality is generally very good in Alberta. ...
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Recommendations for the spatial assessment of air quality resulting from the FP6 EU project Air4EU
Air4EU is an FP6 European project with the major aim of providing recommendations on methodologies for the spatial assessment of air quality on local, urban and regional scales. The emphasis is on methodologies that combine monitoring and modelling and on spatial assessment for regulatory purposes, i.e., the EU daughter directives. The recommendations coming from Air4EU are intended as guidance ...
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Machine Learning (ML) boosts performance of low-cost air quality sensors
Recent research using Praxis/Urban air quality instruments has investigated the use of ML data correction methods to improve field performance of these devices, which use low-cost air quality sensors. The research, published just this month, covers sensing data for NO2, PM10 and PM2.5, read the paper ...
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Clean Air Matters!
New research presents facts about the consequenses of polluted air, and PM2.5 in particular. Air pollution is causing 5 millions of premature deaths per year according to scientists. This means that 5 in 100 persons will die due to air pollution. ...
By OPSIS AB
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Characterizing Air Purification Plasmas with the Hiden HPR-60 MBMS
The quest for pure, pollutant-free indoor air is a priority in our modern age. Advanced air purification technologies have risen to the forefront to tackle this challenge. But behind every successful air purification technology lies a pivotal instrument for its analysis and optimization. Enter the Hiden HPR-60 MBMS. Air Purification Plasmas: A Brief Overview Air purification, through the use ...
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BioSpot-VIVAS sampler used to support COVID aerosol theory
Over the month of August, new research on COVID-19 adds to the likelihood that the SARS-CoV-2 virus can be transmitted through airborne routes. Featured in many news articles around the world, including the New York Times, FOX, CBS and the Daily Mail, Dr. John Lednicky, Research Professor at Environmental and Global Health, University of Florida and his research team, found infectious virus can ...
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Research Papers: Air Bubbles enhance membrane cleaning: a future perspective - Case Study
Click here for the full dowloadable paper. Air bubbles generated using a novel micro-bubble generator have displayed a dramatic enhancement in cleaning efficiency when used in conjunction with specially formulated cleaning chemicals. In order to establish the effect of this application on membrane performance, a series of experiments were conducted using both a flat sheet test rig and a small ...
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