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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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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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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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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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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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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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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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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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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Ventilation Research on Australian Residential Construction
This paper applies established and new testing methods to discover the ventilation performance of various residential building envelope constructions in Australia. Under the definition of 'ventilation performance' we imply the building envelope leakage (or infiltration) of the living space air change rates, the volumetric flow rates and the pathways of air flow between subfloor, living and roof ...
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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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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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`Impacts of Signal Synchronization on Vehicular Emissions,` presented at the 2006 A&WMA annual conference
Abstract Nearly 56% of nitrogen oxides (NOx) emissions, an important ozone precursor, are produced by mobile sources in the United States. Transportation and air quality managers at the state and regional levels have the responsibility of developing and evaluating Transportation Control Measures (TCMs) to improve regional air quality. Signal synchronization is considered to be an effective TCM to ...
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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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Research Note: Air pollution challenges and solutions for China's urban transportation development
China has experienced dramatic urbanisation and motorisation in the past 20 years. The phenomenal rise in the vehicle population in major cities has resulted in increased air pollution, traffic congestion and other 'wicked problems'. The Chinese government at all levels has made significant effort to control motor vehicle emissions, but vehicle population growth far outpaces their efforts, ...
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Developpement of on-line and field dual TD GC – MS for automatic VOC monitoring on petrochemical sites
Significance of the Research: Ambient air is polluted by many VOCs coming from Petrochemical Industry. PAMS, Oxygenated or Halogenated VOCs can be found in many ranges of concentration between background and site fence line. These compounds are precursors of ozone and Industrial bodies need to identify them to be in compliance with the authorized limits and to improve their process. Objectives: ...
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This Designer Is Cleaning Up City Smog and Turning It into Jewelry
A Dutch designer has created a new tower to filter city smog and — hopefully — help end China’s air pollution problem. China’s ongoing struggle with smog is notorious. Rapid industrialization paired with an initial lack of environmental oversight has created the perfect environment for poor air quality, thanks to the particulate matter churned out by cars and fossil fuel ...
By Camfil Ltd
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Sierra helps Biotech firm build their Competitive edge - Case Study
Challenged by their outdated gas mixing systems, budgetary constraints and a turbulent economy, a leading US biotech firm, who depends on precision gas mixing and blending to maintain synthetic air environments for research, sought out Sierra to help streamline and improve their processes and cut costs. Sierra engineers identified current system weak points and recommended the new Sierra ...
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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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