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1 – 10 of 173
Article
Publication date: 1 June 2000

R.D. Adams and J. Comyn

Adhesive bonding is capable of being used in load‐bearing engineering applications, particularly for joining sheet materials. However, it is also used for a wide range of…

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Abstract

Adhesive bonding is capable of being used in load‐bearing engineering applications, particularly for joining sheet materials. However, it is also used for a wide range of applications up to the large structures used in civil engineering. Modern structural adhesives are strong, but will only work effectively if surface preparation is correctly carried out. It is possible to use simple design rules to predict the strength of some joints, but care must be used, especially where advanced composites are to be joined.

Details

Assembly Automation, vol. 20 no. 2
Type: Research Article
ISSN: 0144-5154

Keywords

Article
Publication date: 14 February 2019

Pooja Thakur-Wernz

The purpose of this study is to examine backsourcing, which refers to the full or partial re-internalization of a firm’s previously outsourced activity. Researchers have primarily…

Abstract

Purpose

The purpose of this study is to examine backsourcing, which refers to the full or partial re-internalization of a firm’s previously outsourced activity. Researchers have primarily focused on the drivers of backsourcing, but this paper builds on that prior research to develop a typology of backsourcing.

Design/methodology/approach

Drawing on transaction cost economics and the resource-based view (RBV), the paper posits that firms backsource because of two factors – changes in their short-run total costs and changes in their internal capabilities for re-internalization. By using the interactions between these two factors, the authors propose four types of backsourcing.

Findings

The paper presents a typology for backsourcing: profitability-backsourcing, operational-backsourcing, strategic-backsourcing and failure-backsourcing. Only one (failure-backsourcing) of these four types of backsourcing suggests failure, while the other three indicate strategic flexibility. The authors also present mini-cases to support the typology.

Research limitations/implications

The paper presents a conceptual model of backsourcing. This is a limitations of the study and further research is needed to empirically test the proposed model.

Practical implications

From a managerial perspective, this framework can be used as a decision-making tool for firms that are considering backsourcing. Given the complexity involved and the perceived stigma, decision-makers may find it difficult to backsource. Thus, a framework to avoid biases leading to decision-making errors, as well as to understand if backsourcing is a viable option, is needed.

Originality/value

This paper is one of the first to present a typology of backsourcing which can be used to understand when it is a failure of the outsourcing strategy and when it is a signal of strategic flexibility. This paper contributes to the growing stream of research on backsourcing by moving the literature beyond determinants and bringing attention to the outcomes of backsourcing. Additionally, the proposed framework can be used as a tool by decision-makers to examine whether backsourcing is favorable for their firm based on costs and capabilities for re-internalization.

Details

Journal of Global Operations and Strategic Sourcing, vol. 12 no. 1
Type: Research Article
ISSN: 2398-5364

Keywords

Book part
Publication date: 1 March 2021

Julie McColl and Elaine L. Ritch

By the end of this chapter, you should be able to demonstrate an understanding of:The importance of big data in the information revolution.The resource-based view of the firm and…

Abstract

By the end of this chapter, you should be able to demonstrate an understanding of:

The importance of big data in the information revolution.

The resource-based view of the firm and dynamic capabilities as they relate to big data.

The use of big data in marketing decisions.

Consumer security concerns over the storage and processing of big data.

Details

New Perspectives on Critical Marketing and Consumer Society
Type: Book
ISBN: 978-1-83909-554-2

Keywords

Article
Publication date: 1 January 1984

J.M. Rooney

The design of polymeric materials for microelectronic applications is based on the recognition that structural features in a polymer chain influence the physical properties of the…

Abstract

The design of polymeric materials for microelectronic applications is based on the recognition that structural features in a polymer chain influence the physical properties of the polymer. Illustrations of structure‐property relationships are drawn from applications in lithography, dielectric interlayers and packaging. Among the properties discussed are resolution, plasma etch resistance, thermal stability, electrical properties, permeability, adhesion, mechanical properties and thermal expansion.

Details

Microelectronics International, vol. 1 no. 4
Type: Research Article
ISSN: 1356-5362

Article
Publication date: 11 September 2009

L. Li and C. Wang

The purpose of this paper is to research the durability of the adhesive‐poly(ethylene terephthalate) film joints.

Abstract

Purpose

The purpose of this paper is to research the durability of the adhesive‐poly(ethylene terephthalate) film joints.

Design/methodology/approach

The adhesive‐poly(ethylene terephthalate) joints are prepared with poly ethylene terephthalate film synthesised from thioglycolic acid, terpene hydrocarbon resin and acetone resolution at room temperature. These joints are characterised by methods of peel strength tests, energy dispersive X‐ray spectroscopy (EDX) and analysis of glass transition temperature (Tg) to examine their durability.

Findings

Peel strength tests and EDX analyses prove that water diffusion in different humidity aging conditions causes similar changes, namely having the time‐temperature equivalence at 45°C for 200, 300, 500 and 600 h, respectively, almost corresponding with those at 55°C for 100, 200, 300 and 400 h, respectively, and at 65°C for 50, 100, 150 and 200 h, respectively. The changes in EDX spectra of adhesive‐poly(ethylene terephthalate) film joints indicate that the rate of water penetration in the adhesive is faster than that in the poly(ethylene terephthalate) film. In humidity aging process, the decline ratio of peel strength of adhesive‐poly(ethylene terephthalate) film joints treated with Co60 irradiation is lower than that treated with acetone washing or chemical treatment.

Originality/value

The paper shows that using EDX for analysis of durability of adhesive film joints is of significance to industrial process.

Details

Pigment & Resin Technology, vol. 38 no. 5
Type: Research Article
ISSN: 0369-9420

Keywords

Article
Publication date: 1 July 1964

The visit to Aberdeen of Her Majesty The Queen on June 27 confirmed what had been obvious for a little time—that the epidemic of typhoid fever in the city is over, notwithstanding…

Abstract

The visit to Aberdeen of Her Majesty The Queen on June 27 confirmed what had been obvious for a little time—that the epidemic of typhoid fever in the city is over, notwithstanding that sporadic “secondaries” may continue to occur from time to time. The number of confirmed cases admitted to hospital exceed 400 and the outbreak is among the largest of this century in Britain. The largest number of cases on any one day was 64 on June 1, but by the second week in June, cases had begun to fall and the outbreak was on the decline. The total included about 90 children and there were 38 suspected cases which proved not to be typhoid fever. The infection spread beyond Aberdeen and on June 8, the Secretary of State for Scotland said in the House of Commons that 31 patients (29 in Scotland and two in (England) were in hospital with typhoid contracted in Aberdeen and that 40 other cases were under investigation.

Details

British Food Journal, vol. 66 no. 7
Type: Research Article
ISSN: 0007-070X

Article
Publication date: 1 April 2001

Lijun Qiao and Allan J. Easteal

Various modifications of polyvinyl acetate emulsion wood adhesive were made and their performance evaluated in standard tests. The results are interpreted in the context of…

1087

Abstract

Various modifications of polyvinyl acetate emulsion wood adhesive were made and their performance evaluated in standard tests. The results are interpreted in the context of adhesion theories and the chemical structures of the polymers and wood. The adhesion of the polymers to wood and the cohesive strength of the polymers are the two predominant factors determining the performance of the adhesives. Adhesive strength in thermosetting resins is enhanced by irreversible chemical reactions that create extensive networks within the adhesive layer and strong bonds to the wood substrate, leading to strong and durable joints that passed all of the performance evaluation tests. Most of the PVAc emulsions exhibited good adhesive performance in the dry state, but failed in water soak and boiling water immersion tests since their adhesion and cohesion are mainly based on weaker physical interactions. Emulsions with (hard) core‐(soft) shell morphology and correspondingly high glass transition temperatures gave poor performance under all conditions.

Details

Pigment & Resin Technology, vol. 30 no. 2
Type: Research Article
ISSN: 0369-9420

Keywords

Content available
Article
Publication date: 1 June 2000

306

Abstract

Details

Assembly Automation, vol. 20 no. 2
Type: Research Article
ISSN: 0144-5154

Keywords

Article
Publication date: 1 June 2000

Lijun Qiao, Allan J. Easteal, Clive J. Bolt, Philip K. Coveny and Robert A. Franich

Four different approaches were taken to improve the water resistance of poly(vinyl acetate) (PVAc) emulsion adhesives. The improved wood adhesives were tested according to the ISO…

1539

Abstract

Four different approaches were taken to improve the water resistance of poly(vinyl acetate) (PVAc) emulsion adhesives. The improved wood adhesives were tested according to the ISO 9020 standard. Tensile storage modulus (E’) and glass transition temperature of the polymer films were measured using dynamic mechanical thermal analysis to quantify the influence of different approaches on those variables. Gel fraction and swelling ratio of the polymer film were measured to evaluate internal crosslink density. The experimental results showed that blending melamine/urea/formaldehyde (MUF) resin with PVAc emulsions modified the water resistance considerably and the film had a high E’ since an interpenetrating network‐type structure was formed in the polymer. The advantages and limitations of each modification were assessed on the basis of comparison of the results.

Details

Pigment & Resin Technology, vol. 29 no. 3
Type: Research Article
ISSN: 0369-9420

Keywords

Article
Publication date: 1 December 1946

“The year covered by the report starts in July, 1945, and ends in September, 1946. During this time the Council has had many complicated administrative tasks to perform because…

Abstract

“The year covered by the report starts in July, 1945, and ends in September, 1946. During this time the Council has had many complicated administrative tasks to perform because the period is the first almost complete year covering the change‐over from war to peace. In July of last year the ice cream trade was in the middle of one of the most phenomenal sets of conditions in the whole of its varied existence. It will be remembered that 60 per cent. of the pre‐war usage of sugar and an allocation of shimmed milk powder was still available to the trade, but the quantities were relatively small compared with the enormous public demand for our product, and the ice cream trade had begun to attract the attention of unscrupulous speculators. Every effort was made by the Ministry of Food, who alone had the power to exert any regulation whatever, to prevent unauthorised persons from entering the trade. These efforts were not always successful, but the Association took whatever steps lay in its power to assist the Ministry to prevent firms who had never been in the trade before starling the manufacture and the sale of ice cream, to the detriment of the established trader who had been doing his very best against almost overwhelming obstacles. The loose interpretation of the right of a caterer to make and sell ice cream was for a long time a most difficult problem, but during the year the Ministry of Food Executive Officers have managed to curtail a great many of the unauthorised sales of ice cream which were taking place at points far distant from the caterer's premises when the product had been made with materials obtained under a catering licence. In many of the large cities this type of trade brought the whole industry into disrepute because various forms of ice cream were being sold to the public at fantastically high prices. The whole problem of the manufacture of ice cream has been the subject of discussions by the members of the Technical Advisory Committee, mainly on the subject of proposed standards of quality and bacteriological purity. The Executive Council is indebted to the painstaking efforts of the members of this Committee for their careful researches and many long discussions. The work undertaken by the Ministry of Food and the knowledge it has gained in dietetic values during the years of war‐time feeding of the British population has been considered very carefully and the point of view of what constitutes the maximum nutrition in ice cream has altered from the pre‐war knowledge of rating the value of ice cream in accordance with the highest possible milk fats content. Professor Sir Jack Drummond, when he was the Nutritional Officer to the Ministry of Food, emphasised the need in the everyday diet of both children and adults, of the maximum amount of milk minerals and milk solids not fat. In normal times when ingredients are in free supply there is no difficulty with either children or grown‐ups in obtaining plentiful supplies of fat, but almost all of the value of the milk solids not fat has been forgotten or else brought into disrepute following the laws which were passed many years ago compelling tins of condensed skimmed milk to be marked ‘Unfit for Babies.’ The Technical Committee, taking all of these facts into consideration, has evolved a standard which has been agreed by the Executive Council and submitted to the Ministry of Food, designed to give the best type of ice cream, planned in such a way that the maximum amount of milk‐solids‐not‐fat can be included. This skimmed milk powder can be incorporated into the mix and still keep a reasonable quantity of fat, which in the Committee's opinion should consist only of milk fat. After the most careful research and discussions, having in mind the interest of the small trader who cannot install very elaborate machinery, it was agreed by the Committee that, when fresh dairy cream becomes available again, a minimum standard of milk fat in ice cream should be arranged to include the use of both fresh dairy milk and cream as well as enough skimmed milk powder to bring the total to a correct balance of ingredients which would freeze in the average type of freezer without becoming sandy or crystallised. There was a good deal of experience on which the Committee could base its findings, obtained from the use of the standards put into force by the Government of Northern Ireland before the war; these were not fully balanced and required some adjustment. Negotiations on the question of the standard between Ice Cream Alliance and the Wholesale Ice Cream Manufacturers' Federation were conducted at great length and the different points of view were examined with the utmost care. It has been found, however, that the proposals by the different Associations cannot be reconciled to form one standard common to the best interest of the members of both Associations. The Ice Cream Alliance has been safeguarding the welfare of the general public and thereby the future trade of its members, and it has insisted that the minimum standards which its Technical Committee has recommended should not be varied in principle to comply with the somewhat wider interpretation of the Wholesale Federation. One point upon which the Technical Committee lays great stress is that the tests for the standard should always be conducted by sampling the finished ice cream as delivered to the consumer, and not the ice cream mix as made in the factory. This would place definite limitations on the amount of over‐run which could be permitted and would prevent any ice cream manufacturer, regardless of his type of machinery, from giving a smaller quantity of fat or milk solids to the consumer, than his competitor who might have less elaborate and expensive machinery. It has, of course, been made clear that all questions relating to a standard for ice cream refer not to the present period of emergency, with its substitute ingredients, but to the time when all ingredients can be purchased free of any restriction by every ice cream manufacturer. There is no doubt that if it were possible to evolve a standard of substitute ingredients it would be of the greatest advantage to the trade, but this cannot be done until the right ingredients, namely skimmed milk powder, fat and sugar are made available to every member of the trade in equal proportions. Your Executive Council has approached the Minister of Food on various occasions seeking an interview to put these points before him and to emphasise the need for better and more consistent supplies of the right types of materials so that ice cream can be made worthy of its name by all manufacturers. It is also anxious to remove the difference in the allocations as between the larger manufacturer who receives 70 per cent. of his datum usage of fat and the ice cream trader who made his product in pre‐war days only from fresh milk, and who is now prohibited from making an ice cream for consumption with more than about 2¼ per cent. fat. The serious world position and shortage of food materials has, of course, worked against this project, and until there is some easing of the supply of raw materials for better distribution within the world as a whole, the British Government has found it is unable to provide supplies of the right ingredients. Your Chairman and Executive Council are, however, using every effort to bring about the desirable situation as quickly as possible. In recent months there had been major disasters to the trade which had been caused by the outbreak of typhoid fever conveyed through carriers of this disease to members of the general public through the medium of ice cream. These outbreaks have led to a tremendous amount of wrongful reporting in the daily Press and the many quite unjustified allegations against both the ice cream traders and the Local Government officials, particularly the Sanitary Inspectors and Medical Officers of Health, who are responsible for the interpretation of the 1938 Food and Drugs Act controlling the registration of ice cream manufacturing premises, and who have worked very hard to help both the trade and the public. It must be agreed that many ice cream manufacturers have been working without very much knowledge of the responsibilities of their trade and under enormous handicaps, due to the dilapidations caused by six years of war and their inability to have building work and decorations carried out to make their small factories suitable for the manufacture of ice cream. These years of war have also led to a much greater wear and tear on ice cream plant than would normally have been the case, because the trade has had to put up with flour instead of skimmed milk powder even before it was shut down in 1942. Deterioration and rust during the shut down period from September, 1942, until December, 1944, was even greater than if the plant had been in constant use even with substitute materials. The result has been that many ice cream traders have been faced with enormous difficulties of plant renewals at a time when machinery is unobtainable, with the result that unhygienic vessels and utensils have had to be kept in service, which in the ordinary way would have been scrapped many years ago. The Alliance is taking every step possible with the other Associations that manufacture plant equipment and utensils, to improve supplies to those who need the articles, but here again supplies of raw materials to the machinery equipment manufacturers are growing worse and worse. It is because of this situation that in the negotiations with the Ministry of Health regarding the compulsory heat treatment programme the greatest latitude is being requested so that no regulations would be brought into force until the trade is in a position to comply with them without undue hardship. We would like to record our appreciation to the other Associations who have expressed their willingness to collaborate with us for the good of the trade as a whole.”

Details

British Food Journal, vol. 48 no. 12
Type: Research Article
ISSN: 0007-070X

1 – 10 of 173