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Article
Publication date: 7 November 2017

Naveed Riaz, Ayesha Riaz and Sajid Ali Khan

The security of the stored biometric template is itself a challenge. Feature transformation techniques and biometric cryptosystems are used to address the concerns and…

Abstract

Purpose

The security of the stored biometric template is itself a challenge. Feature transformation techniques and biometric cryptosystems are used to address the concerns and improve the general acceptance of biometrics. The purpose of this paper is to provide an overview of different techniques and processes for securing the biometric templates. Furthermore, the paper explores current research trends in this area.

Design/methodology/approach

In this paper, the authors provide an overview and survey of different features transformation techniques and biometric cryptosystems.

Findings

Feature transformation techniques and biometric cryptosystems provide reliable biometric security at a high level. There are many techniques that provide provable security with practical viable recognition rates. However, there remain several issues and challenges that are being faced during the deployment of these technologies.

Originality/value

This paper provides an overview of currently used techniques for securing biometric templates and also outlines the related issues and challenges.

Details

Sensor Review, vol. 38 no. 1
Type: Research Article
ISSN: 0260-2288

Keywords

Article
Publication date: 31 July 2020

Zainab Akhtar, Jong Weon Lee, Muhammad Attique Khan, Muhammad Sharif, Sajid Ali Khan and Naveed Riaz

In artificial intelligence, the optical character recognition (OCR) is an active research area based on famous applications such as automation and transformation of…

Abstract

Purpose

In artificial intelligence, the optical character recognition (OCR) is an active research area based on famous applications such as automation and transformation of printed documents into machine-readable text document. The major purpose of OCR in academia and banks is to achieve a significant performance to save storage space.

Design/methodology/approach

A novel technique is proposed for automated OCR based on multi-properties features fusion and selection. The features are fused using serially formulation and output passed to partial least square (PLS) based selection method. The selection is done based on the entropy fitness function. The final features are classified by an ensemble classifier.

Findings

The presented method was extensively tested on two datasets such as the authors proposed and Chars74k benchmark and achieved an accuracy of 91.2 and 99.9%. Comparing the results with existing techniques, it is found that the proposed method gives improved performance.

Originality/value

The technique presented in this work will help for license plate recognition and text conversion from a printed document to machine-readable.

Details

Journal of Enterprise Information Management, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1741-0398

Keywords

Article
Publication date: 19 November 2021

Muhammad Qamar Zia, Tobias M. Huning, Aamir Feroz Shamsi, Muhammad Naveed and Riaz Ahmed Mangi

The goal of this study was to examine the mediating mechanism of informal learning between dimensions of learning climate and organizational citizenship behavior (OCB). In…

Abstract

Purpose

The goal of this study was to examine the mediating mechanism of informal learning between dimensions of learning climate and organizational citizenship behavior (OCB). In addition, the study also aimed to investigate the learning climate, in the dimensions of learning facilitation, learning appreciation and error avoidance as antecedents of informal learning.

Design/methodology/approach

The data were gathered from sports items manufacturing small and medium enterprises (SMEs) in Sialkot, Pakistan. Sialkot is home to manufacturing businesses that export their products worldwide. Survey data of 318 middle managers collected at 2 different times were used for testing the research model using structural equation modeling (SEM).

Findings

The results demonstrate that facilitation and appreciation learning climate have a positive relationship with informal learning and error-avoidance has a negative relationship with informal learning. The analysis also revealed that informal learning mediated the linkage between learning climate dimensions and OCB. Moreover, informal learning is significantly related to OCB.

Practical implications

HR practitioners and organizational leaders of SMEs can use, encourage and promote informal learning to improve the skills and knowledge of employees at low cost. For instance, management should strategically implement informal learning at the workplace by providing a supportive learning climate.

Originality/value

Previous studies have overlooked the impact of informal learning on OCB and its mediating effect. The present study addresses this gap by examining the mediating mechanism of informal learning between learning climate and OCB.

Details

Evidence-based HRM: a Global Forum for Empirical Scholarship, vol. 10 no. 2
Type: Research Article
ISSN: 2049-3983

Keywords

Article
Publication date: 22 June 2020

Naveed Imran, Maryiam Javed, Muhammad Sohail, S. Farooq and Mubashir Qayyum

Naturally, all the materials are not viscous (i.e. milk, mayonnaise, blood, vaccines, syrups, cosmetics, oil reservoirs, paints, etc.). Here present analysis focuses on…

Abstract

Purpose

Naturally, all the materials are not viscous (i.e. milk, mayonnaise, blood, vaccines, syrups, cosmetics, oil reservoirs, paints, etc.). Here present analysis focuses on the usage of non-Newtonian fluid rheological properties enhancing, damping tools, protection apparatus individuals and in various distinct mechanical procedures. Industrial applications of non-Newtonian liquids include minimum friction, reduction in oil-pipeline friction, scale-up, flow tracers and in several others. The peristaltic mechanism is used as a non-Newtonian material carrier here. This mechanism occurs because of continuous symmetrical and asymmetrical propulsion of smooth channel walls. Peristalsis is a very significant mechanism for carrying drugs and other materials during sensitive diseases treatments.

Design/methodology/approach

Keeping in mind the considered problem assumptions (Rabinowitsch fluid model, thermal Grashof number, Prandtl number, density Grashof number, wall properties, etc.), it is found that the modeled equations are coupled and nonlinear. Thus here, analytical results are quite challenging to acquire and very limited to extremely venerated circumstances unsettled to their nonlinearity. Hence various developments found in computing proficiencies, numerical procedures that provides accurate, stable and satisfying solutions for non-Newtonian material flows exclusively in complex dimensions play a significant role. Here BVP4C numerical technique is developed to evaluate the nonlinear coupled system of equations with appropriate boundary constraints.

Findings

Due to convectively heated surface fluid between the walls having a small temperature. Sherwood and Nusselt numbers both deduce for fixed radiation values and different Rabinowitsch fluid quantity. Skin friction is maximum in the case of Newtonian, while minimum in case of dilatant model and pseudoplastic models. The influence of numerous parameters associated with flow problems such as thermal Grashof number, density Grashof number, Hartman number, Brownian motion, thermophoresis motion factor and slip parameters are also explored in detail and plotted for concentration profile, temperature distribution and velocity. From this analysis, it is concluded that velocity escalates for larger

Originality/value

The work reported in this manuscript has not been investigated so far by any researcher.

Details

Multidiscipline Modeling in Materials and Structures, vol. 17 no. 1
Type: Research Article
ISSN: 1573-6105

Keywords

Article
Publication date: 28 August 2020

Rehan Aftab and Muhammad Naveed

The study invites seminal investigation on potential of investment returns in professional sports leagues. In line with scope of research, the analysis of this study…

Abstract

Purpose

The study invites seminal investigation on potential of investment returns in professional sports leagues. In line with scope of research, the analysis of this study brings into focus the Pakistan Cricket Board (PCB) and franchises pertinent to Pakistan Super League (PSL) for investment appraisal and returns analysis.

Design/methodology/approach

The methodical aspect of research deals with financial ratios and sensitivity analysis capturing the potential of returns on investment for target sample of study.

Findings

The investment appraisal substantiates the significance of potential returns on sports projects. The returns of investment reports sluggish seasonal returns during initial phase of PSL; however, return on investment (ROI) optimized with the maturity and further capitalization of Pakistan Supper League in more concentrated competitive environment. Sensitivity analysis proves variability of returns with changes in growth prospect of franchises.

Research limitations/implications

The study provides important working knowledge for existing and potential new investors and sports boards to consider the financial investment feasibility through customized investment models and relative orientations of promotion of sports, new talent hunting and re-fabricating the structure of sports in line with new age.

Originality/value

The efficacy of research is ensured through empirical verification of data obtained from reliable sources, and the novelty of research comes from investment appraisal and analysis of growing sports league familiarized as Pakistan Super League. The research approach and target sample are quite unique in context of sports leagues literature.

Details

Managerial Finance, vol. 47 no. 6
Type: Research Article
ISSN: 0307-4358

Keywords

Article
Publication date: 23 July 2019

Ahmad Raza Bilal, Tehreem Fatima and Muhammad Kashif Imran

The purpose of this paper is to advance the theoretical perspective of complexity leadership paradigm to introduce shared leadership style as a precursor of taking charge…

Abstract

Purpose

The purpose of this paper is to advance the theoretical perspective of complexity leadership paradigm to introduce shared leadership style as a precursor of taking charge behavior in public sector higher educational institutions (HEIs) of Pakistan. Moreover, this study unveils the underlying mechanisms of the climate of initiative and psychological safety for clarifying the link of shared leadership and taking charge.

Design/methodology/approach

The multi-source and multi-wave data were analyzed by employing double mediation analysis (PROCESS Model 4); using 282 valid responses obtained from a proportionate stratified sample of faculty members working in public sector HEIs of Pakistan.

Findings

The result indicates that shared leadership is a suitable style for governing the public sector HEIs and it fosters taking charge behavior in teaching faculty. Additionally, shared leadership creates climates that support initiatives and are psychologically safe that set stage for taking charge behaviors in teaching faculty of public sector HEIs of Pakistan.

Originality/value

This research has filled the gap of focusing on more collaborative leadership styles instead of traditional vertical leadership practices in public sector HEIs of Pakistan. Theoretically, this study suggests new insights into the contextual antecedents and mediating mechanisms of taking charge behaviors.

Details

International Journal of Public Leadership, vol. 15 no. 3
Type: Research Article
ISSN: 2056-4929

Keywords

Article
Publication date: 20 October 2020

Lamiaa Kamal El-Gabry, Mohamed Fathy Nasr and Amira Adel Abou El-Kheir

This work aims to increase the dyeability of nylon 6 with basic dyeing through the treatment of the fibre with available and cheap nanomaterials, namely; nano bentonite…

Abstract

Purpose

This work aims to increase the dyeability of nylon 6 with basic dyeing through the treatment of the fibre with available and cheap nanomaterials, namely; nano bentonite using an economic and simple method.

Design/methodology/approach

Different amounts of nano clay, namely, nano bentonite were dispersed in distilled water using an ultrasonic homogenizer for 1 h. Nylon fabrics were treated with different concentrations of dispersed nano bentonite (1%, 2%, 3%, 4%, 5% wt/v). After half an hour, the samples were padded using SVETEMA laboratory padding system. The padding pressure was adjusted at 3 bar to allow a pickup of 100%. The padded samples were dried at 80°C for 5 min and cured at 160°C for 3 min using ROACHES laboratory thermos-fixation. The cured samples were then washed with running water and left to dry at room temperature.

Findings

The obtained results indicated that the modification of polyamide 6 fibres with nano bentonite had a great impact on their dyeing properties. The obtained shades, absorption behaviour and fastness properties were significantly enhanced. Based on these results, it was concluded that polyamide fabrics could be successfully dyed with basic dyes using economical dyeing conditions.

Originality/value

This paper introduces a new method the loaded the nano-clay on the synthetic fibres, which are nylon 6 to enhance the dyeability with cationic dyes using the physical method without changing the structure of the fibres.

Details

Research Journal of Textile and Apparel, vol. 25 no. 1
Type: Research Article
ISSN: 1560-6074

Keywords

Article
Publication date: 18 August 2020

Nazir Ahmed Jogezai, Shaik Abdul Malik Mohamed Ismail and Fozia Ahmed Baloch

This study aimed at exploring the change facilitator styles (CFS) that secondary school head teachers in Pakistan possess.

Abstract

Purpose

This study aimed at exploring the change facilitator styles (CFS) that secondary school head teachers in Pakistan possess.

Design/methodology/approach

This is a quantitative study using Hall and George CFS questionnaire to collect data from 276 secondary school head teachers. The CFSQ used in this study consists of 30 Likert-type questions relating to six scales. The six scales, with five items each in aggregate, form three possible CFS, including initiator, manager and responder.

Findings

The results indicate that most secondary school head teachers (75.7%) in Pakistan used responder CFS to facilitate change in their schools. 16.7% of the head teachers used manger, while only 7.6% possessed initiator change facilitation styles.

Research limitations/implications

The study has implications for research, in particular in the developing countries where head teachers' leadership practices are rooted in the past with maintaining authority and status quo.

Practical implications

The study has implications for policymakers and schools in developing countries, like Pakistan, in terms of considering the vital role of head teachers in change implementation. In particular, in the prevailing cluster-based educational management, the study's findings remain valuable for schools in the Balochistan province of Pakistan.

Originality/value

The paper reports the results regarding secondary school head teachers' change facilitator styles in the context of power devolution in Pakistan. The authors believe that the manuscript is appropriate for publication by the international journal of educational management because it is in line with the aims and scope of the journal. The authors assure the originality of this work. It has not been published elsewhere, nor is it currently under consideration for publication in any other journal.

Details

International Journal of Educational Management, vol. 35 no. 1
Type: Research Article
ISSN: 0951-354X

Keywords

Article
Publication date: 25 February 2022

Shaoyu Ye and Kevin K.W. Ho

This study investigated the relationship between generalised trust and psychological well-being in college students, considering the social support obtained from their…

Abstract

Purpose

This study investigated the relationship between generalised trust and psychological well-being in college students, considering the social support obtained from their social networks via Twitter and face-to-face (FTF) interactions. Initially, the authors planned to collect data at the beginning of the first semester in 2019 for fine-tuning the model as a pilot study, and in 2020 for the main study. However, due to the coronavirus disease 2019 (COVID-19) pandemic, the data helped authors to analyse changes in young people's psychological situation before and during the pandemic in Japan.

Design/methodology/approach

The study conducted a self-report survey targeting college students in the Kanto region in Japan. Data were collected from mid-May to the end of June 2019, as well as in early to mid-June 2020, with 304 and 584 responses, respectively. The collected data were analysed using structural equation modelling and a multiple regression analysis.

Findings

The findings using the 2019 data set indicated that (a) students mostly used Twitter for information gathering and sharing of hobbies, and they received both informatics and emotional support from Twitter, and from FTF interactions; (b) there were direct positive effects of generalised trust and social skills on their psychological well-being; and (c) students with lower levels of generalised trust tended to interact with very intimate individuals using Twitter to obtain social support, which did not have any effects on their improvement of psychological well-being. From the 2020 data set, the authors also found that, like 2019, generalised trust and social skills had direct effects on the improvement of psychological well-being. Additionally, we observed that students spent more time using Twitter and received more emotional support from it, as most people tried not to meet other people in person due to the first State of Emergency in Japan. Similarly, the authors found that in 2019, only social support from very intimate partners via FTF communication had slightly significant effects on improving their psychological well-being, whereas in 2020, their expectation for social networks via FTF had decreased their levels of psychological well-being, but their social support from Twitter had slightly significant effects on their improvement of psychological well-being. One of the main reasons for this might be due to the challenge of meeting with others in person, and therefore, social support from Twitter partially played a role that traditionally was only beneficial through FTF communication.

Originality/value

We understand that this is one of the few social psychological studies on social media that collected data both before and during the COVID-19 pandemic. It provides unique evidence in demonstrating how the COVID-19 pandemic has changed college students communication behaviours.

Details

Library Hi Tech, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0737-8831

Keywords

Article
Publication date: 14 October 2021

Naveed Imran and Maryiam Javed

Particular attention is given to the viscous damping force parameter, stiffness parameter, rigidity parameter, and Brinkman number and plotted their graph for thermal…

Abstract

Purpose

Particular attention is given to the viscous damping force parameter, stiffness parameter, rigidity parameter, and Brinkman number and plotted their graph for thermal distribution, momentum profile and concentration profile.

Design/methodology/approach

In the field of engineering, biologically inspired propulsion systems are getting the utmost importance. Keeping in view their developmental progress, the present study was made. The theoretical analysis explores the effect of heat and mass transfer on non-Newtonian Sisko fluid with slip effects and transverse magnetic field in symmetric compliant channel. Using low Reynolds number, so that the authors neglect inertial forces and for keeping the pressure constant during the flow, channel height is used largely as compared to the ratio of wavelength. The governing equations of fluid flow problem are solved using the perturbation analysis.

Findings

Results are considered for thickening, thinning and viscous nature of fluid models. It is found that the velocity distribution profile is boosted for increasing values of the Sisko fluid parameter and porous effect, while thermal profile is reducing for Brinkman number (viscous dissipation effects) for all cases. Moreover, shear-thicken and shear-thinning behavior of non-Newtonian Sisko fluid is also explained through the graphs.

Originality/value

Hear-thicken and shear-thinning behavior of non-Newtonian Sisko fluid is also explained through the graphs.

Details

Multidiscipline Modeling in Materials and Structures, vol. 17 no. 6
Type: Research Article
ISSN: 1573-6105

Keywords

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