Eric Marsh, David Arneson, Matthew Van Doren and Scott Blystone
The purpose of this paper is to show how an ultra‐precision manufacturing process (flycutting) can be improved through interferometry.
Abstract
Purpose
The purpose of this paper is to show how an ultra‐precision manufacturing process (flycutting) can be improved through interferometry.
Design/methodology/approach
The paper presents a theoretical model of the machine tool cutting system and then uses interferometer measurements to validate the results. The model is then used to show some general findings relating process conditions to workpiece quality.
Findings
A realistic cutting model can predict the workpiece flatness with excellent accuracy and closely match interferometer measurements. The process parameters in precision flycutting should be chosen such that the flycutting tool is in contact with the workpiece for an integer number of vibration cycles. The machine tool stiffness and structural damping will affect the workpiece quality, but the most significant improvements are made through thoughtful selection of the flycutter spindle speed as it relates to the machine dynamics.
Originality/value
This paper presents a math model that accurately matches results obtained by experimental verification and extensive testing. Interferometry is shown to be an extremely useful tool in optimizing the process conditions in a flycutting manufacturing operation. Furthermore, the results are of general use to practitioners using flycutting in a variety of industrial applications.
Details
Keywords
Communications regarding this column should be addressed to Mrs. Cheney, Peabody Library School, Nashville, Term. 37203. Mrs. Cheney does not sell the books listed here. They are…
Abstract
Communications regarding this column should be addressed to Mrs. Cheney, Peabody Library School, Nashville, Term. 37203. Mrs. Cheney does not sell the books listed here. They are available through normal trade sources. Mrs. Cheney, being a member of the editorial board of Pierian Press, will not review Pierian Press reference books in this column. Descriptions of Pierian Press reference books will be included elsewhere in this publication.
The following classified, annotated list of titles is intended to provide reference librarians with a current checklist of new reference books, and is designed to supplement the…
Abstract
The following classified, annotated list of titles is intended to provide reference librarians with a current checklist of new reference books, and is designed to supplement the RSR review column, “Recent Reference Books,” by Frances Neel Cheney. “Reference Books in Print” includes all additional books received prior to the inclusion deadline established for this issue. Appearance in this column does not preclude a later review in RSR. Publishers are urged to send a copy of all new reference books directly to RSR as soon as published, for immediate listing in “Reference Books in Print.” Reference books with imprints older than two years will not be included (with the exception of current reprints or older books newly acquired for distribution by another publisher). The column shall also occasionally include library science or other library related publications of other than a reference character.
Matthew Sibanda and Robert Ryk van Zyl
Incorporating electromagnetic compatibility (EMC) in the design life of traditional satellites is entrenched in the satellite industry. However, EMC treatment of CubeSats has not…
Abstract
Purpose
Incorporating electromagnetic compatibility (EMC) in the design life of traditional satellites is entrenched in the satellite industry. However, EMC treatment of CubeSats has not been widely pursued, for various possible reasons. CubeSats are a young technology platform initially intended for students and researchers at universities to create awareness and excitement amongst them for space technology. This and other factors limited the need for stringent EMC planning. As CubeSats mature in complexity, the success of future missions will rely on incorporating proper EMC designs in their development. This paper aims to address the experimental investigation of known EMC culprits within a CubeSat’s context.
Design/methodology/approach
Electromagnetic interference suppression effectiveness of cable trays in CubeSats, as well as crosstalk in high-speed/frequency data links, is investigated, using the PC/104 connector stack. Some recommendations for improving the EMC and, therefore, enhancing satellite mission success are provided.
Findings
It was found that, if physically feasible in the CubeSat, cable trays are significant radiation suppressors. A further investigation into crosstalk between pins of the PC/104 connector stack showed that grounding a pin in between two signal pins leads to a significant reduction in the coupled signal.
Originality/value
This paper addresses EMC within the context of a CubeSat and outlines experiments done resulting in cost-effective methods of reducing interference by using already available material (such as unused signal pins available in the PC/104 connector).
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ON another page will be found preliminary notes with regard to the Annual Conference of the Library Association at Liverpool. We have before us at the time of writing only an…
Abstract
ON another page will be found preliminary notes with regard to the Annual Conference of the Library Association at Liverpool. We have before us at the time of writing only an outline of the programme, but we hope to foreshadow in the May Number further features of the June Meeting, and to publish articles on the Literary Associations and Libraries of Liverpool.
- The purpose of this paper is to provide an overview of the American National Biography including a brief history of the book and details on its electronic format.
Abstract
Purpose
- The purpose of this paper is to provide an overview of the American National Biography including a brief history of the book and details on its electronic format.
Design/methodology/approach
- An historical account of the forerunner publications is provided, followed by consideration of the printed and the electronic versions. Illustrative examples are used throughout. It is briefly compared with a similar work from the UK. The advantages of the electronic format are assessed.
Findings
- The American National Biography provides a comprehensive coverage of notable Americans and offers detailed portraits focusing mainly on the public and professional lives of its subjects. It is easy to navigate and use in its electronic version. This is a useful biographical resource for libraries, especially in the USA.
Originality/value
- There have been many reviews of the American National Biography, but this one provides an overview of the electronic version and a comparative assessment of it against similar books in the field. For information professionals it offers a useful summary of the main features of this resource and a reminder of its value as a biographical information tool.
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LIBRARIES, in common with all other public institutions, must be faced with the uncertainty that arises from the inconclusive results of the recent General Election. We are not…
Abstract
LIBRARIES, in common with all other public institutions, must be faced with the uncertainty that arises from the inconclusive results of the recent General Election. We are not intimately concerned with parties and it is held that librarians should eschew them altogether as they have duties to, are the servants of, all. This consideration applies more to the public librarian than to the special one. Be that as it may, the change must postpone, we imagine, our chances of the new Public Libraries Act, because a new general election is probable in a very short time. Meanwhile, there is always uncertainty as to public expenditure and, although we do not expect anything drastic, it is hardly likely that our centenary year will see the beginnings of the library progress for which some had hoped. Most local rate‐budgets have, fortunately, been fixed by now.
Maitreyee Das, K. Rangarajan and Gautam Dutta
The purpose of this paper is to do a thorough literature review to assess the current status of corporate sustainability practices, issues and challenges in small and medium-sized…
Abstract
Purpose
The purpose of this paper is to do a thorough literature review to assess the current status of corporate sustainability practices, issues and challenges in small and medium-sized enterprises (SMEs) and, based on literature, suggest a model that can improve and strategically manage their sustainability practices in the emerging market context of Asia.
Design/methodology/approach
The authors did a meta-analysis of the reviewed literature taken from peer-reviewed scholarly journals in the time frame of 1985-2016. Methodology used by the authors is through preferred reporting items for systematic reviews and meta-analysis.
Findings
Corporate sustainability is a well-practiced area in big organisations. However, literature suggests that in case of SMEs, the situation is different. Social and environmental practices are grossly neglected in SMEs, more specifically in emerging markets. Existing literature mentions that collaborative mode of operation, government policy and facilitation and supporting organisation culture can positively influence SME’s sustainability performance and hence improve their financial performance.
Research limitations/implications
Most of the papers in corporate sustainability literature are qualitative in nature and there is no empirical evidence of establishing this relationship in SME context. This paper tries to conceptualise the existence of a possible framework relating factors of sustainability and their role in improving business performance of the SMEs. However, the findings are purely literature-based and piloting of the questionnaire is also done on 20 SMEs in a specific geography. This is a very small and also a biased sample. Future research studies based on this paper are expected to verify the proposed relationship with larger data set catering to different industry clusters and countries.
Practical implications
The proposed model is only directional in nature. With the content analysis, the authors have tried to answer the research questions relating to factors of sustainability and its impact on business performance. To address the research questions in a more generalised way, an empirical research needs to be conducted to establish the research propositions. The proposed model needs to be validated and optimised with further research and data analysis. Once such a model is established, this can be proved beneficial for providing guidance to SMEs to enhance the sustainability of their business operations.
Social implications
The SME sector has made a significant contribution to the economic development in countries, and this sector has huge potential for growth, and their geographic spread and penetration is much higher than large organisations. Sustainable growth of this industry sector can reasonably be expected to lead to stable and sustainable development of the nation. Moreover, environmental and social best practices adopted by SMEs will also have a positive influence on society and environment in the long run.
Originality/value
This paper had done a geography wise analysis of sustainable practices in SMEs, and based on the recommendations and suggestions of different analyses, the authors developed few research propositions and also presented a conceptual model. Finally, to address the gap, it mentions some future research possibilities to test and validate the proposed model in the context of SMEs in emerging markets of Asia.