Search results

1 – 10 of over 2000
Article
Publication date: 1 November 1932

W.R. Schulz

THE Deutsche Luftsport Ausstellung (German Light Aeroplane Show) which was held in Berlin from October 1 to October 23, was devoted entirely to private and club flying, so…

Abstract

THE Deutsche Luftsport Ausstellung (German Light Aeroplane Show) which was held in Berlin from October 1 to October 23, was devoted entirely to private and club flying, so that only light aeroplanes, touring aircraft, appropriate engines, and gliders were shown. Unlike the big international aero shows, exhibitors were not restricted to the industry alone; many of the aircraft shown were constructed by clubs or amateur designers. In addition, the organisers had arranged for the production of a few “aircraft of the future” which, although only in model form, were to full scale and embodied some interesting ideas.

Details

Aircraft Engineering and Aerospace Technology, vol. 4 no. 11
Type: Research Article
ISSN: 0002-2667

Article
Publication date: 1 February 1931

W.R. Schulz

THE type of aircraft which is now called the “Ente” is characterised by the fact that, in contrast to the normal aeroplane with a tail, it has an elevator in front of the…

Abstract

THE type of aircraft which is now called the “Ente” is characterised by the fact that, in contrast to the normal aeroplane with a tail, it has an elevator in front of the main supporting surfaces. The attempt to build such aeroplanes is not new, but dates back to the early days of flying. One of the first flights in Europe by Santos Dumont was made with a biplane of the “Ente” type; other examples being the aero‐planes of 1910 and 1911 of Professor Reissner of Germany, and of Voisin. It was the latter who gave the “Ente” its name (Canard). These attempts have, however, sunk into oblivion for reasons quite unconnected with the principle.

Details

Aircraft Engineering and Aerospace Technology, vol. 3 no. 2
Type: Research Article
ISSN: 0002-2667

Article
Publication date: 1 June 1993

Rockwell Schulz, Chris Girard, Iskander Enikeev, Stephen Harrison and Ma Xiemin

Begins from the premiss that job satisfaction among caring professionals is important not only for its own sake, but also for its effect on service outcomes. Presents…

141

Abstract

Begins from the premiss that job satisfaction among caring professionals is important not only for its own sake, but also for its effect on service outcomes. Presents empirical results, from four very different countries, which suggest that management‐influenced variables can help to ameliorate job dissatisfaction arising from factors such as resource constraints. Develops the thesis that cross‐cultural comparisons are a valid instrument for assessing the effect of management efforts which contribute to psychiatric satisfaction and feelings of autonomy. Establishes the need for more cross‐national investigation of the relationship of management to worker job satisfaction.

Details

Journal of Management in Medicine, vol. 7 no. 6
Type: Research Article
ISSN: 0268-9235

Keywords

Article
Publication date: 1 October 1932

W.R. Schulz

THE Europa Rundflug, which took place this year for the third time, is a contest for light aeroplanes with a limit to tare weight of 480 kg. (881 lb.). The competition was…

Abstract

THE Europa Rundflug, which took place this year for the third time, is a contest for light aeroplanes with a limit to tare weight of 480 kg. (881 lb.). The competition was instituted five years ago by the Aéro Club de France, with the object of improving the breed of light touring‐type aeroplanes. To this end the competition includes an evaluation of the technical qualities of the aircraft by tests and examination, and a cross‐country flight.

Details

Aircraft Engineering and Aerospace Technology, vol. 4 no. 10
Type: Research Article
ISSN: 0002-2667

Book part
Publication date: 31 October 2015

Jumoke Ladeji-Osias, Christine Hohmann, Stella Hargett, Lisa Brown, Cleo Hughes-Darden and Michel Reece

Morgan State University (Morgan) is a leading undergraduate institution for black science and engineering doctoral degree recipients. Morgan also is a leader in the…

Abstract

Morgan State University (Morgan) is a leading undergraduate institution for black science and engineering doctoral degree recipients. Morgan also is a leader in the production of black engineering degree recipients in the United States. This chapter provides a historic overview of the major programs with a tie to the impact on the institutional metrics, a discussion of the process for developing researchers in science and engineering, and alumni perspectives. The undergraduate research development models used in engineering at Morgan are compared and contrasted with the life sciences and physical sciences. The programs focus on developing communities of engineering practice and communities of science, thereby enhancing students’ self-efficacy and resilience, shaping disciplinary identity, and creating learning communities. These approaches are critical for the success of minority students and are supported by the social science literature. Best practices have been adopted at varying levels by the School of Engineering, the School of Computer Mathematics and Natural Science and the Behavioral Science departments that have netted these Ph.D. outcomes including multiyear mentored research, research training courses, and participation in professional meetings. Multiple approaches to student development, when matched with the disciplinary culture, are shown to result in national impact.

Details

Infusing Undergraduate Research into Historically Black Colleges and Universities Curricula
Type: Book
ISBN: 978-1-78560-159-0

Keywords

Book part
Publication date: 30 December 2004

Thomas T.H. Wan, Yen Ju Lin and Bill B.L. Wang

The relationships of physician practice characteristics, care management effectiveness, autonomy, and managed care involvement, and physicians’ practice and career…

Abstract

The relationships of physician practice characteristics, care management effectiveness, autonomy, and managed care involvement, and physicians’ practice and career satisfaction were investigated. A panel sample (N=660) of 6800 physicians was made up of eleven physicians randomly selected from each of the sixty communities. Three latent constructs include care management effectiveness, practice autonomy, and openness in private practice. Multilevel modeling was performed. A statistically insignificant association was found between the perceived effectiveness of care management and physician satisfaction, holding the practice characteristics and other perception factors constant. The study demonstrated direct effects of practice characteristics and care management effectiveness on the practice of gate-keeping functions and on earnings. Only two contextual variables, managed care penetration and median income in the study communities, were related to physicians’ practice.

Details

Chronic Care, Health Care Systems and Services Integration
Type: Book
ISBN: 978-1-84950-300-6

Article
Publication date: 8 April 2014

Jason Foster, Albert J. Mills and Terrance Weatherbee

The aim of this paper is threefold. First, to argue for a more historically engaged understanding of the development of management and organization studies (MOS). Second…

Abstract

Purpose

The aim of this paper is threefold. First, to argue for a more historically engaged understanding of the development of management and organization studies (MOS). Second, to reveal the paradoxical character of the recent “historical turn,” through exploration of how it both questions and reinforces extant notions of the field. Third, to explore the neglect of the New Deal in MOS to illustrate not only the problem of historical engagement, but also to encourage a rethink of the paradigmatic limitations of the field and its history.

Design/methodology/approach

Adopting the theory of ANTi-history, the paper conducts an analysis of historical management textbooks and formative management journals to explore how and why the New Deal has been neglected in management theory.

Findings

Focussing on the New Deal raises a number of questions about the relationship between history and MOS, in particular, the definition of the field itself. Questions include the ontological character of history, context and relationalism, and the link between history and MOS, ethics, Anglo-American centredness, and the case for historical engagement.

Originality/value

The paper argues for a new approach to historical understanding that encourages a revisiting of what constitutes the field of MOS; a greater awareness of and opening up to alternative (hi)stories and, thus, approaches to MOS; and a re-evaluation of phenomena such as the New Deal and other more radical ways of organizing.

Details

Journal of Management History, vol. 20 no. 2
Type: Research Article
ISSN: 1751-1348

Keywords

Article
Publication date: 5 July 2011

Ramona Teuber

This paper's objective is to investigate consumers' and producers' expectations towards geographical indications (GIs) in a German context, where this certification scheme…

2485

Abstract

Purpose

This paper's objective is to investigate consumers' and producers' expectations towards geographical indications (GIs) in a German context, where this certification scheme has not been widely used so far.

Design/methodology/approach

Data for the consumer side were obtained by a structured questionnaire. A total of 741 consumers were asked online with respect to their knowledge and expectations towards geographical indications in general and Hessian apple wine in particular. The collected data were analysed by an explorative factor analysis and a binary logit model. Additionally, data for the producer side were collected via an in‐depth interview with one major producer of Hessian apple wine.

Findings

The consumer side results indicate that Hessian consumers' awareness and knowledge about GIs is very limited. Moreover, it is found that the quality warranty dimension is not as important as the economic support dimension and perceived authenticity of the product. A hypothetical willingness to pay for protection is mainly driven by consumer perceptions and expectations towards the positive impacts of geographical indications on the local economy. The producer side results highlight that the most important motivation to apply for a protected G1 (PGI) is to secure the established reputation against misuse by competing producers in order to ensure the quality level of Hessian apple wine.

Practical implications

The findings indicate that a PGI is by no means a self‐runner. The positive impacts of this certification scheme have to be communicated to consumers in order to be successful.

Originality/value

Empirical evidence regarding consumers' knowledge and expectations towards geographical indications in a non‐Mediterranean context is limited. The present paper contributes to the existing literature by providing empirical evidence for a German case study.

Details

British Food Journal, vol. 113 no. 7
Type: Research Article
ISSN: 0007-070X

Keywords

Article
Publication date: 20 October 2014

Nattapon Chantarapanich, Apinya Laohaprapanon, Sirikul Wisutmethangoon, Pongnarin Jiamwatthanachai, Prasert Chalermkarnnon, Sedthawatt Sucharitpwatskul, Puttisak Puttawibul and Kriskrai Sitthiseripratip

The purpose of this paper was to investigate the feasibility on design and production of a three-dimensional honeycomb based on selective laser melting (SLM) technique for…

1117

Abstract

Purpose

The purpose of this paper was to investigate the feasibility on design and production of a three-dimensional honeycomb based on selective laser melting (SLM) technique for use in aeronautical application.

Design/methodology/approach

Various polyhedrons were investigated using their mechanical property, i.e. strain energy density (SED), by means of finite element (FE) analysis for the suitability of use in aerospace application; the highest SED polyhedron was selected as a candidate polyhedron. From the FE analysis, the truncated octahedron (three-dimensional honeycomb) structure was considered to be the potential candidate. Polyhedron size and beam thickness of the open-cellular three-dimensional honeycomb structure were modelled and analysed to observe how the geometric properties influence the stiffness of the structure. One selected model of open-cellular honeycomb (unit cell size: 2.5 mm and beam thickness: 0.15 mm) was fabricated using SLM. The SLM prototypes were assessed by their mechanical properties, including compressive strength, stiffness and strength per weight ratio. To investigate the feasibility in production of airfoil section sandwich structure, NACA 0016 airfoil section with three-dimensional honeycomb core was constructed and also fabricated using SLM.

Findings

According to the result, the three-dimensional honeycomb has elastic modulus of 63.18 MPa and compressive strength of 1.1 MPa, whereas strength per weight ratio is approximately 5.0 × 103 Nm/kg. The FE result presented good agreement to the mechanical testing result. The geometric parameter of the three-dimensional honeycomb structure influences the stiffness, especially the beam thickness, i.e. increase of beam thickness obviously produces the stiffer structure. In addition, the sandwich structure of airfoil was also successfully manufactured.

Originality/value

This work demonstrated the production of sandwich structure of airfoil using SLM for aeronautical engineering. This investigation has shown the potential applications of the three-dimensional structure, e.g. aircraft interior compartment components and structure of unmanned aerial vehicles.

Details

Rapid Prototyping Journal, vol. 20 no. 6
Type: Research Article
ISSN: 1355-2546

Keywords

Article
Publication date: 18 January 2008

Maarten van Elsen, Farid Al‐Bender and Jean‐Pierre Kruth

This paper aims to present a possible complete set of dimensionless parameters to describe the process of selective laser melting (SLM). This makes it possible to compare…

4242

Abstract

Purpose

This paper aims to present a possible complete set of dimensionless parameters to describe the process of selective laser melting (SLM). This makes it possible to compare the similarity between different experiments, a sine‐qua‐non for a correct comparison of the results.

Design/methodology/approach

The paper describes the application of dimensional analysis to SLM.

Findings

Although the idea of dimensionless numbers is far from new, it has apparently never been applied rigorously to rapid prototyping and rapid manufacturing technologies. The technique is important, since it reduces the number of factors and makes it possible to compare results of different research groups. Furthermore, some more fundamental insights about the process can be gained.

Originality/value

This work is a first step towards a manageable system to control very difficult processes.

Details

Rapid Prototyping Journal, vol. 14 no. 1
Type: Research Article
ISSN: 1355-2546

Keywords

1 – 10 of over 2000