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Book part
Publication date: 16 December 2009

Abstract

Details

Arms and Conflict in the Middle East
Type: Book
ISBN: 978-1-84950-662-5

Book part
Publication date: 16 December 2009

Abstract

Details

Arms and Conflict in the Middle East
Type: Book
ISBN: 978-1-84950-662-5

Article
Publication date: 9 September 2021

Iyappan Gunasekaran, Govindaraj Rajamanickam, Santhosh Narendiran, Ramasamy Perumalsamy, Kiruthika Ramany and Radha Sankararajan

Various approaches have been made to alter the vibration sensing properties of zinc oxide (ZnO) films to achieve high sensitivity. This paper aims to report the…

Abstract

Purpose

Various approaches have been made to alter the vibration sensing properties of zinc oxide (ZnO) films to achieve high sensitivity. This paper aims to report the experimental study of the fabrication of precursor molar ratio concentration varied ZnO nanostructures grown on rigid substrates using the refresh hydrothermal method. The effect of these fabricated ZnO nanostructures-based vibration sensors was experimentally investigated using a vibration sensing setup.

Design/methodology/approach

ZnO nanostructures have been grown using low temperature assisted refresh hydrothermal method with different precursor molar concentrations 0.025 M (R1), 0.075 M (R2) and 0.125 M (R3). Poly 3,4-ethylenedioxythiophene polystyrene sulfonate, a p-type material is spun coated on the grown ZnO nanostructures. Structural analysis reveals the increased intensity of the (002) plane and better c-axis orientation of the R2 and R3 sample comparatively. Morphological examination shows the changes in the grown nanostructures upon increasing the precursor molar concentration. The optical band gap value decreases from 3.11 eV to 3.08 eV as the precursor molar concentration is increased. Photoconductivity study confirms the formation of a p-n junction with less turn-on voltage for all the fabricated devices. A less internal resistance of 0.37 kΩ was obtained from Nyquist analysis for R2 compared with the other two fabricated samples. Vibration testing experimentation showed an improved output voltage of the R2 sample (2.61 V at 9 Hz resonant frequency and 2.90 V for 1 g acceleration) comparatively. This also gave an increased sensitivity of 4.68 V/g confirming its better performance when compared to the other fabricated two samples.

Findings

Photoconductivity study confirms the formation of a p-n junction with less turn-on voltage for all the fabricated devices. A less internal resistance of 0.37 kΩ was calculated from the Nyquist plot. Vibration testing experimentation proves an increased sensitivity of 4.68 V/g confirming its better performance when compared to the other fabricated two samples.

Originality/value

Vibration testing experimentation proves an increased sensitivity of 4.68 V/g for R2 confirming its better performance when compared to the other fabricated two samples.

Details

Circuit World, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0305-6120

Keywords

Article
Publication date: 1 April 1969

R.J. Ball and R. Agarwala

Examines the generic advertising campaign for tea conducted under the auspices of the Tea Council (UK) between 1965 and 1968. Contends that this innovation had a…

Abstract

Examines the generic advertising campaign for tea conducted under the auspices of the Tea Council (UK) between 1965 and 1968. Contends that this innovation had a statistically significant effect on the trend of tea consumption, but was insufficient to halt the overall decline – this is attributed to the demand for coffee. Purports to investigate, as far as possible, the impact of this generic campaign on the demand for tea. States the analysis is concerned with the period from 1958 onwards and is based on quarterly data. Concludes that it seems unlikely that tea has been broadly competing with all drinks in any effective sense over the period studied.

Details

European Journal of Marketing, vol. 3 no. 4
Type: Research Article
ISSN: 0309-0566

Keywords

Article
Publication date: 1 January 1993

Robert E. Looney

Seeks to provide some insight as to the scope for population policyin post‐war Kuwait, where officially the Government is committed toreducing the expatriate population…

Abstract

Seeks to provide some insight as to the scope for population policy in post‐war Kuwait, where officially the Government is committed to reducing the expatriate population. Specifically attempts to determine which public services were most likely to be responsive to increases in the foreign population. Were these services provided to both Arab and Asian workers alike or were the patterns of supply somewhat different by nationality? Did public services adjust quickly to increases in the foreign population or were the increased provisions spread out gradually over time? Mainly finds that, despite the early post‐liberation statements of Kuwaiti officials, it will not be possible to dispense entirely with foreign workers. There is a good chance, however, that the Government′s political policy of replacing Palestinian workers with those from Asia will provide the unintended benefit of considerable budgetary savings.

Details

International Journal of Social Economics, vol. 20 no. 1
Type: Research Article
ISSN: 0306-8293

Keywords

Article
Publication date: 1 February 1992

Robert E. Looney

Assesses the main factors affecting employment in the Arab Gulfregion. In particular: What are the main determinants of employment inthe region? How do these determinants…

Abstract

Assesses the main factors affecting employment in the Arab Gulf region. In particular: What are the main determinants of employment in the region? How do these determinants vary between national and foreign workforces? Have these determinants changed over time? The results, particularly for the 1980‐85 period, suggest that labour market mismatches may be increasing in the Arab World. This is essentially the problem of too many PhDs and too few mechanics. The symptom of this would be relatively high levels of disguised unemployment among the highly educated, coupled with a shortage of artisans. The damage arising from these skill mismatches lies in the way the various economic sectors are likely to expand while faced by labour constraints. These findings suggest that reforms of both the educational system and the hiring practices of Government agencies will be critical to restoring increases in productivity and ultimately expanded rates of non‐oil income.

Details

International Journal of Social Economics, vol. 19 no. 2
Type: Research Article
ISSN: 0306-8293

Keywords

Article
Publication date: 19 November 2019

Guang Ma

This study examines the information content of firms’ operations-related disclosures (ORDs) and the importance of these disclosures as an information source to stock…

62

Abstract

This study examines the information content of firms’ operations-related disclosures (ORDs) and the importance of these disclosures as an information source to stock markets relative to other commonly examined sources of information. I find that ORDs constitute a large portion of corporate press releases. These disclosures are associated with significant stock price reactions and trading volume. The stock price reactions to ORDs are greater than the reactions to 10-K/Q reports and are of similar magnitudes to the reactions to 8-K filings. On average, ORDs explain variation in firms’ quarterly returns to a similar degree as management earnings forecasts and 10-K/Q reports for the full sample and to a greater degree for small firms and firms with lower earnings quality.

Details

Journal of Accounting Literature, vol. 43 no. 1
Type: Research Article
ISSN: 0737-4607

Keywords

Article
Publication date: 1 January 1991

Yi Lin

Systems with the so‐called “additive” property are studied. This kind of system is an abstract in the language of systems theory of some useful structures in mathematics…

Abstract

Systems with the so‐called “additive” property are studied. This kind of system is an abstract in the language of systems theory of some useful structures in mathematics, such as topology. Some mapping properties between additive systems are given and open questions are posed.

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Kybernetes, vol. 20 no. 1
Type: Research Article
ISSN: 0368-492X

Keywords

Article
Publication date: 1 March 1990

Yi Lin

The concept of L‐fuzzy systems is introduced as a generalisation of that of general systems. A universal structure of a special kind of L‐fuzzy system is given, some…

Abstract

The concept of L‐fuzzy systems is introduced as a generalisation of that of general systems. A universal structure of a special kind of L‐fuzzy system is given, some mapping properties of L‐fuzzy systems are studied and a number of open questions posed.

Details

Kybernetes, vol. 19 no. 3
Type: Research Article
ISSN: 0368-492X

Keywords

Article
Publication date: 1 December 2007

Stephen Kean and Peter Wells

Forecasting future period profitability is widely identified as an aim of financial statement analysis, and these forecasts are typically relied upon for the estimation of…

Abstract

Forecasting future period profitability is widely identified as an aim of financial statement analysis, and these forecasts are typically relied upon for the estimation of firm value. To facilitate this, the decomposition of earnings into its components or drivers, is typically advocated. This paper investigates the existence of systematic differences in persistence across the components of earnings. If components of earnings experience differences in persistence, this may provide insights into the determinants of aggregate earnings level and persistence. This paper provides evidence of differences in persistence between components of earnings. Differences are found between components formed on the basis of: financial ratios; operating and financing activities; and cash and accruals. Furthermore, there is evidence that earnings components improve the explanatory power of models evaluating aggregate earnings persistence, with this result being strongest for firms with extreme income decreasing accruals. Due to the pivotal role of earnings in firm valuation, the results from this paper have direct implications for valuation.

Details

Accounting Research Journal, vol. 20 no. 2
Type: Research Article
ISSN: 1030-9616

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