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Article
Publication date: 5 March 2018

Noorfazreena Kamaruddin, Jonathan Potts and William Crowther

The purpose of this paper is to examine geometrical design influence of various types of flying discs on their flight performance from the aerodynamics perspective.

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Abstract

Purpose

The purpose of this paper is to examine geometrical design influence of various types of flying discs on their flight performance from the aerodynamics perspective.

Design/methodology/approach

The lift, drag and moment coefficients of the discs were measured experimentally using a wind tunnel. Three types of golf discs and four sets of simpler parametric discs were studied to analyze and isolate the effect of design factors on these aerodynamic characteristics. Full six degree-of-freedom simulations of the discs were performed to visualize their flight trajectories and attitudes. These simulations, combined with the experimental data, provide details on the well-known “S-shaped” ground-path traced by a flying disc.

Findings

This paper reveals two key parameters to evaluate the flight performance of a disc: its coefficient of lift-to-drag ratio (CL/CD) and, more importantly, its coefficient of pitching moment (CM). The latter influences the tendency of the disc to yaw from its intended path, and the former influences its throwing distance.

Practical implications

The work suggests that to optimize the flight performance of a disc, the magnitudes and gradient of its CM should be minimized and its trim-point shifted from origin, while its CL/CD should be maximized with a flatter peak.

Originality/value

In this paper, the design parameters and the aerodynamic characteristics of various types of flying discs are analysed, compared and discussed in depth. Recommendations of design improvements to enhance the performance of any flying disc are offered as well.

Details

Aircraft Engineering and Aerospace Technology, vol. 90 no. 2
Type: Research Article
ISSN: 1748-8842

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Article
Publication date: 1 December 1911

THE appearance of the seventh edition of the Decimal Classification, which is now thirty‐five years old, seems to be an occasion when some comment may be made on the author and…

26

Abstract

THE appearance of the seventh edition of the Decimal Classification, which is now thirty‐five years old, seems to be an occasion when some comment may be made on the author and his work.

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New Library World, vol. 14 no. 6
Type: Research Article
ISSN: 0307-4803

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Article
Publication date: 1 November 1929

WE offer our readers again our best wishes for the joy that appropriately belongs to Christmas. The happy festival comes at the close of one of the most fruitful and useful years…

13

Abstract

WE offer our readers again our best wishes for the joy that appropriately belongs to Christmas. The happy festival comes at the close of one of the most fruitful and useful years in library history: a year which has seen wide developments—not, indeed, in the establishment of new libraries, though these have not been wanting (the last month of the year, for example, has seen Lord Elgin open the new library at Hendon), but in a drawing together of existing organizations, the creation of a really new Library Association, and a degree of co‐operation which thirty years ago would have seemed difficult.

Details

New Library World, vol. 32 no. 5
Type: Research Article
ISSN: 0307-4803

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Article
Publication date: 1 August 1900

In the preceding rules the individual biographical entry has been ignored, as it lends itself to more convenient treatment apart. Collective biography is, of course, in no way…

34

Abstract

In the preceding rules the individual biographical entry has been ignored, as it lends itself to more convenient treatment apart. Collective biography is, of course, in no way different from the ordinary book ; and the same is to be said of autobiography. Owing to the change of form in the individual biographical entry, due to the author yielding in importance to the biographee, it is usual to separate collective and individual biography in the catalogue, whether this is done on the shelves or not. Individual biography might be further separated in the catalogue into autobiographical and non‐auto‐biographical, though I cannot recall any instance where this has been carried out. In any case, it is important to distinguish in some clear way, between the subject name and the name of the author. Mere position is hardly enough ; there should be a distinction in the type. Whatever type has been employed in the other parts for author should be retained for author in the individual biograhical entry, and the subject name should be in a different type. If the author is printed in a black‐face type, as suggested in these rules, the best type for the subject name will be small capitals, as :—

Details

New Library World, vol. 3 no. 2
Type: Research Article
ISSN: 0307-4803

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Article
Publication date: 1 October 2005

Robert W. Kerbs

The computer has evolved from a tool used solely for business, research and governmental purposes to an instrument characterized by social interaction in virtual worlds. In this…

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Abstract

Purpose

The computer has evolved from a tool used solely for business, research and governmental purposes to an instrument characterized by social interaction in virtual worlds. In this context, like‐minded people can converse and interact online in ways that are both enjoyable and satisfying. However, virtual worlds also bring with them cause for concern. These concerns include – but are not limited to – the loss of one's privacy, the fear of being exploited, and the loss of identity. This paper seeks to investigate the current state of affairs of online virtual worlds in terms of what many people deem acceptable and unacceptable forms of behavior.

Design/methodology/approach

A study is presented that explores the unmonitored distribution of electronic materials through the internet. Available technologies are surveyed and recommendations made based on these analyses.

Findings

This paper has shown that effective enforcement of online behavior is, at least, a very complicated undertaking – not one that will be quickly or easily solved. However, it demonstrates a number of techniques people may use today to protect themselves and those around them.

Originality/value

A number of techniques are described to help people traverse virtual worlds in a safe, secure and confident manner. This includes recommendations for people of all ages, from children through to adults.

Details

The Electronic Library, vol. 23 no. 5
Type: Research Article
ISSN: 0264-0473

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Article
Publication date: 20 April 2012

Pierre Barbaroux

This article aims to identify the capabilities supporting the development of collaborative innovation within knowledge‐intensive environments.

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Abstract

Purpose

This article aims to identify the capabilities supporting the development of collaborative innovation within knowledge‐intensive environments.

Design/methodology/approach

Re‐considering the history of the ARPANET project as a vivid example of collaborative innovation, the article presents qualitative research from a historical case.

Findings

Within this framework, the article shows that benefiting from collaboration in innovation entails that the innovative organisation is capable of achieving (at least) the following tasks: to leverage complementarities between internal and external sources of innovation (design capability); to codify, capitalise and disseminate knowledge outcomes (knowledge management capability); and to align product and organisations in a dynamic way (adaptive governance capability).

Research limitations/implications

This contribution is limited by looking at a single case. On the premise that model generalization depends on extensive empirical data, the current article should be considered as preliminary/exploratory research that aims at identifying the capabilities supporting collaborative innovation within knowledge‐intensive environments.

Originality/value

The originality of this article is to look at a historical case to elaborate on a typology of collaborative innovation capabilities.

Details

European Journal of Innovation Management, vol. 15 no. 2
Type: Research Article
ISSN: 1460-1060

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Article
Publication date: 1 July 1972

M.R. Denning, L.J. Megaw and L.J. Stamp

March 22, 1972 Building and Construction — Working places regulations — Main contractor in occupation of motorway site — Subcontractors' employee injured by fall on path used as…

38

Abstract

March 22, 1972 Building and Construction — Working places regulations — Main contractor in occupation of motorway site — Subcontractors' employee injured by fall on path used as alternative means of access to and egress from working place — Whether main contractor capable of being liable to subcontractors' employee for damages for breach of regulation relating to safe access — Whether under duty to comply with “such requirements” of safe access regulation “as affect him…” to cover subcontractors' employees — Whether duty extended by addition of two words in regulation — Conflicting decision on scope of amended regulation resolved — Construction (Working Places) Regulations, 1966 (S.I. 1966 No. 94) regs. 3(1) (a) (b), 6(1) — Factories Act, 1961 (9 & 10 Eliz. II, c 34) s.76(2).

Details

Managerial Law, vol. 12 no. 4
Type: Research Article
ISSN: 0309-0558

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Article
Publication date: 1 November 1972

Reid, Morris of Borth‐y‐Gest, Pearson, Simon of Glaisdale and Salmon

June 28, 1972 Limitation of action — Asbestosis — Workman contracting insidious disease over number of years through employers' breach of statutory duty — Action commenced more…

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Abstract

June 28, 1972 Limitation of action — Asbestosis — Workman contracting insidious disease over number of years through employers' breach of statutory duty — Action commenced more than one year after giving up work — Lack of knowledge that disease attributable to breach of duty — Whether workman entitled to bring action outside period — Limitation Act 1963 (c.47) ss. 1(3), 7(3).

Details

Managerial Law, vol. 13 no. 2
Type: Research Article
ISSN: 0309-0558

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Article
Publication date: 1 March 1997

Frank Crowther

Uses the outcomes of case study research in socio‐economically disadvantaged education contexts to examine the work of educators who have had a noticeable effect on the quality of…

693

Abstract

Uses the outcomes of case study research in socio‐economically disadvantaged education contexts to examine the work of educators who have had a noticeable effect on the quality of life in their communities. Concludes that the work of highly successful classroom practitioners can in part be understood through reference to prominent theories of educational leadership. Questions historical and current approaches to educational administration which associate leadership with positional authority. Proposes an alternative definition of “teacher leadership”.

Details

Journal of Educational Administration, vol. 35 no. 1
Type: Research Article
ISSN: 0957-8234

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Article
Publication date: 1 March 2005

Mary Ipe

The Supreme Court order dated July 19,2004, ordering relief for Bhopal gas victims is a case of the long arm of justice 20 years after the event. The leakage of a poisonous gas…

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Abstract

The Supreme Court order dated July 19,2004, ordering relief for Bhopal gas victims is a case of the long arm of justice 20 years after the event. The leakage of a poisonous gas, Methyl Isocynate (MIC) from the pesticide plant of Union Carbide India Ltd, Bhopal, on December 3, 1984,resulted in a loss of 10,000 lives and permanently disabled nearly 50,000 people. This tragedy raises some serious corporate social responsibility issues to be addressed by manufacturing Companies, in their responsibility towards the community and environment. This Case examines the Bhopal Gas Tragedy and explains what happened and why: The economic, legal and environmental aspects and addresses the wider issues facing the stakeholders and the players.

Details

Social Responsibility Journal, vol. 1 no. 3/4
Type: Research Article
ISSN: 1747-1117

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