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21 – 30 of over 1000
Article
Publication date: 1 January 1983

B.G. Batchelor and S.M. Cotter

The automatic visual sensing of aerosol sprays has many advantages over alternative techniques. This article suggests various measurements which could form the basis of an…

Abstract

The automatic visual sensing of aerosol sprays has many advantages over alternative techniques. This article suggests various measurements which could form the basis of an inspection system and illustrates their use on sprays produced by a can of furniture polish. The extension of these ideas to other applications is also discussed.

Details

Sensor Review, vol. 3 no. 1
Type: Research Article
ISSN: 0260-2288

Article
Publication date: 1 February 1999

Sten P. Schreiber

Briefly discusses the search for alternatives to CFCs in aerosols for precision cleaning applications. Gives properties of several solvents used in cleaning applications…

230

Abstract

Briefly discusses the search for alternatives to CFCs in aerosols for precision cleaning applications. Gives properties of several solvents used in cleaning applications. Considers five key parameters for selecting a solvent for aerosol applications.

Details

Pigment & Resin Technology, vol. 28 no. 1
Type: Research Article
ISSN: 0369-9420

Keywords

Open Access
Article
Publication date: 11 August 2022

Salomon Obahoundje, Vami Hermann N'guessan Bi, Arona Diedhiou, Ben Kravitz and John C. Moore

Three Coupled Model Intercomparison Project Phase 5 models involved in the G4 experiment of the Geoengineering Model Inter-comparison Project (GeoMIP) project were used to…

1060

Abstract

Purpose

Three Coupled Model Intercomparison Project Phase 5 models involved in the G4 experiment of the Geoengineering Model Inter-comparison Project (GeoMIP) project were used to investigate the impact of stratospheric aerosol injection (SAI) on the mean surface air temperature and precipitation extremes in Africa.

Design/methodology/approach

This impact was examined under G4 and Representative Concentration Pathway (RCP) 4.5 scenarios on the total precipitation, the number of rainy days (RR1) and of days with heavy rainfall (R20 mm), the rainfall intensity (SDII), the maximum length of consecutive wet (CWD) and dry (CDD) days and on the maximum rainfall in five consecutive days (Rx5day) across four regions: Western Africa (WAF), Eastern Africa (EAF), Northern Africa and Southern Africa (SAF).

Findings

During the 50 years (2020–2069) of SAI, mean continental warming is −0.40°C lower in G4 than under RCP4.5. During the post-injection period (2070–2090), the temperature continues to increase, but at a lower rate (−0.19°C) than in RCP4.5. During SAI, annual rainfall in G4 is significantly greater than in RCP4.5 over the high latitudes (especially over SAF) and lower over the tropics. The termination of SAI leads to a significant increase of rainfall over Sahel and EAF and a decrease over SAF and Guinea Coast (WAF).

Practical implications

Compared to RCP4.5, SAI will contribute to reducing significantly regional warming but with a significant decrease of rainfall in the tropics where rainfed agriculture account for a large part of the economies. After the SAI period, the risk of drought over the extratropical regions (especially in SAF) will be mitigated, while the risk of floods will be exacerbated in the Central Sahel.

Originality/value

To meet the Paris Agreement, African countries will implement mitigation measures to contribute to keep the surface air temperature below 2°C. Geoengineering with SAI is suggested as an option to meet this challenge, but its implication on the African climate system needs a deep investigation in the aim to understand the impacts on temperature and precipitation extremes. To the best of the authors’ knowledge, this study is the first to investigate the potential impact of SAI using the G4 experiment of GeoMIP on temperature and precipitation extremes of the African continent.

Details

International Journal of Climate Change Strategies and Management, vol. 14 no. 4
Type: Research Article
ISSN: 1756-8692

Keywords

Content available
Article
Publication date: 9 March 2010

119

Abstract

Details

Industrial Lubrication and Tribology, vol. 62 no. 2
Type: Research Article
ISSN: 0036-8792

Article
Publication date: 1 August 1978

A chemical aerosol mixing/blending plant has been supplied by D. H. Industries Ltd of River Road, Barking Essex, to National Oil and Chemical Marketing Co Ltd, a company jointly…

Abstract

A chemical aerosol mixing/blending plant has been supplied by D. H. Industries Ltd of River Road, Barking Essex, to National Oil and Chemical Marketing Co Ltd, a company jointly owned by the Federal Government of Nigeria and the Royal Dutch Shell Group.

Details

Pigment & Resin Technology, vol. 7 no. 8
Type: Research Article
ISSN: 0369-9420

Article
Publication date: 1 June 1956

Despite the fact that a number of salt‐spray tests have been standardised, it can be said that there is no method at the moment which so tests material as to establish with…

Abstract

Despite the fact that a number of salt‐spray tests have been standardised, it can be said that there is no method at the moment which so tests material as to establish with certainty the relationship between behaviour under tests and behaviour under natural conditions. The chamber which has been developed and in use for about three years in the P.T.T. laboratories should, however, serve to eliminate a number of different sources of error and to fill certain gaps.

Details

Anti-Corrosion Methods and Materials, vol. 3 no. 6
Type: Research Article
ISSN: 0003-5599

Article
Publication date: 13 March 2017

Stefano Salata

Among others, the resuspension of fine and ultrafine particulate matters (PMs) on air due by land take effect is an uncovered issue. The relation between land use change and…

Abstract

Purpose

Among others, the resuspension of fine and ultrafine particulate matters (PMs) on air due by land take effect is an uncovered issue. The relation between land use change and fluxes of PM is not systematically observed even if the common classification of ecosystem services (ESs) clearly shows relationship between soil and aerosol concentrations. Soil does not act only as carbon pool, but it is also a crucial variable for the resuspension dynamic of particulates. If key policies of sustainable urban development is focused on “quality of life,” it is necessary to map and evaluate the effect of land take on airborne fluxes in metropolitan areas. The paper aims to discuss these issues.

Design/methodology/approach

The paper allows to introduce pioneer studies on air quality in large urban areas outling a methodology of particulate field measurement. It introduces newer quantitative/qualitative assessment of environmental effect due to urbanization ensuring a major efficiency on ES degradation.

Findings

Expected results are the estimation of resuspension dynamics of aerosol for typical land cover pattern.

Research limitations/implications

Implications are mainly destinated to increase significant knowledge and general awareness of the environmental effect caused by urban growth: urban areas act as a hotspot for health risk as both particle sources and human population are concentrated in these areas.

Originality/value

Considering that cardiovascular diseases are significantly caused by air quality, the paper aims to support sustainable planning policies aimed to achieve a better quality of environment on urban areas.

Details

Management of Environmental Quality: An International Journal, vol. 28 no. 2
Type: Research Article
ISSN: 1477-7835

Keywords

Article
Publication date: 1 March 1960

M.J. Root and M.J. Maury

Since the advent of cosmetic aerosols in metal cans, corrosion has taken its place as a major problem in the formulation of these products. Much corrosion information can be…

Abstract

Since the advent of cosmetic aerosols in metal cans, corrosion has taken its place as a major problem in the formulation of these products. Much corrosion information can be gathered by electrochemical measurement that cannot be obtained in any other way. This article, which deals with these modern systems, is an abridged version of a paper presented to the Society of Comestic Chemists, May 1959, in New York.

Details

Anti-Corrosion Methods and Materials, vol. 7 no. 3
Type: Research Article
ISSN: 0003-5599

Article
Publication date: 1 March 1988

C. Lea

The flux residues on almost all soldered printed circuit boards are removed using the chlorofluorocarbon (CFC) 113. In just one year's time production of this solvent will almost…

Abstract

The flux residues on almost all soldered printed circuit boards are removed using the chlorofluorocarbon (CFC) 113. In just one year's time production of this solvent will almost certainly be curtailed, on a scale agreed internationally. This is a major issue that needs to be addressed urgently by the electronics assembly industry worldwide. This paper presents (i) the background that has led to the restrictions being placed on production and consumption of solvent 113, (ii) the international agreement and timetable for the implementation of the restrictions and (iii) the perceived opportunities that are available to the electronics assembly industry to meet this challenge.

Details

Circuit World, vol. 14 no. 4
Type: Research Article
ISSN: 0305-6120

Article
Publication date: 1 July 1963

Anti‐corrosive Aerosol The Aerosol Packaging Co. Ltd. are filling aerosols with an anti‐corrosion preparation for Suntester Ltd. of Barking, Essex.

Abstract

Anti‐corrosive Aerosol The Aerosol Packaging Co. Ltd. are filling aerosols with an anti‐corrosion preparation for Suntester Ltd. of Barking, Essex.

Details

Anti-Corrosion Methods and Materials, vol. 10 no. 7
Type: Research Article
ISSN: 0003-5599

21 – 30 of over 1000