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1 – 10 of 239Dechao Sun, Tahir Mahmood, Ubaid ur Rehman and Shouzhen Zeng
Gathering, analyzing and securing electronic data from various digital devices for use in legal or investigative procedures is the key process of computer forensics. Information…
Abstract
Purpose
Gathering, analyzing and securing electronic data from various digital devices for use in legal or investigative procedures is the key process of computer forensics. Information retrieved from servers, hard drives, cellphones, tablets and other devices is all included in this. This article tackles the challenging problem of how to prioritize different kinds of computer forensics and figure out which kind is most useful in cases of cybercrime, fraud, theft of intellectual property, harassment and espionage.
Design/methodology/approach
Therefore, we first introduce enhanced versions of Hamacher power aggregation operators (AOs) within the framework of bipolar complex fuzzy (BCF) sets. These include BCF Hamacher power averaging (BCFHPA), BCF Hamacher power-weighted averaging (BCFHPWA), BCF Hamacher power-ordered weighted averaging (BCFHPOWA), BCF Hamacher power geometric (BCFHPG), BCF Hamacher power-weighted geometric (BCFHPWG) and BCF Hamacher power-ordered-weighted geometric (BCFHPOWG) operators. Employing the devised AOs, we devise a technique of decision-making (DM) for dealing with DM dilemmas with the BCF set (BCFS).
Findings
We prioritize different types of computer forensic by taking artificial data in a numerical example and getting the finest computer forensic. Further, by this example, we reveal the applicability of the proposed theory. This work provides a more elaborate and versatile procedure for classifying computer forensics with dual aspects of criteria and extra fuzzy information. It allows for better and less biased DM in the more intricate digital investigations, which may lead to better DM and time-saving in real-life forensic scenarios. To demonstrate the significance and impression of the devised operators and techniques of DM, they are compared with existing ones.
Originality/value
This research is the first to combine Hamacher and power AOs in BCFS for computer forensics DM. It presents new operators and a DM approach that is not encountered in the existing literature and is specifically designed to deal with the challenges and risks associated with the classification of computer forensics. The framework’s capacity to accommodate bipolar criteria and extra fuzzy information is a major development in the field of digital forensics and decision science.
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Saira Naeem, Rana Muhammad Ayyub, Irfan Ishaq, Sobia Sadiq and Tahir Mahmood
In view of increasing demand of halal foods and to properly address the needs of various types of consumers, the literary inquiries have sprung in this area since start of…
Abstract
Purpose
In view of increasing demand of halal foods and to properly address the needs of various types of consumers, the literary inquiries have sprung in this area since start of twenty-first century. However, the number of papers published in reputed journals is still pegged to the lowest ebb. This paper aims to systematically review all qualitative research papers, published in reputed journals, and to give specific directions to future researchers to move on and explore some other required areas.
Design/methodology/approach
The Campbell collaboration systematic literature review technique was adopted as methodology to screen out relevant studies. A total of 11 qualitative studies qualified the set criteria which have used various qualitative methodologies like interviews, focus groups, observations and netnography. The qualitative data were analyzed through nVivo software by adopting Spiggle’s steps of data analysis.
Findings
In these selected qualitative studies, around 24 main themes were extracted in total, out of which four themes were repeatedly discussed in most of these studies. Likewise, the details of geographical location of authors, type of methodology used, religious affiliation of respondents, type of journals, most prolific journals and citations of each paper were worked out and given in the form of result tables. Based on the importance of this fastest-growing global food market, it has been concluded that the qualitative research inquiries are still in infancy in this area, and more papers need to be published in reputed journals.
Research limitations/implications
As per set criteria, only papers published in quality journals were included in this review; therefore, the main limitation of this review is that it has not included other qualitative papers published elsewhere.
Practical implications
The future researchers can use the results of this study in setting direction of their research in the area of halal food consumption. These results can be used by academicians to know about the extent of research conducted in this area, whereas marketers can make prudent policies based on these explored areas.
Originality/value
It is claimed to be the first systematic literature review on halal food consumption.
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Tahir Mahmood and Noman Arshed
The ailing agriculture sector in Pakistan demands a supportive financial sector. The low adoption of Salam financing by Islamic banks does not match the potential demand…
Abstract
Purpose
The ailing agriculture sector in Pakistan demands a supportive financial sector. The low adoption of Salam financing by Islamic banks does not match the potential demand. Empirical studies identified demand-led issues that led to a low proportion of Salam financing, but the exploration of supply-side constraints is overlooked.
Design/methodology/approach
This study has applied Interpretive Phenomenological Analyses on 20 interviews with the experts in the Islamic banking industry who play a role in decisions on Salam financing to the agriculture sector. The purpose of the study is to explore the determinants of low adoption of Salam financing by Islamic banks.
Findings
The experiences led to the major reasons for the low adoption of Salam financing categorized as intentions, attitudes and behavior control which corresponds to the theory of planned behavior.
Originality/value
This study is instrumental in exploring the supply-side constraints to Salam financing and helps find aligning theory to intervene via Islamic banking regulations.
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Shi Yin, Zengying Gao and Tahir Mahmood
The aim of this study is to (1) construct a standard framework for assessing the capability of bioenergy enterprises' digital green innovation partners; (2) quantify the choice of…
Abstract
Purpose
The aim of this study is to (1) construct a standard framework for assessing the capability of bioenergy enterprises' digital green innovation partners; (2) quantify the choice of partners for digital green innovation by bioenergy enterprises; (3) propose based on a dual combination empowerment niche digital green innovation field model.
Design/methodology/approach
Fuzzy set theory is combined into field theory to investigate resource complementarity. The successful application of the model to a real case illustrates how the model can be used to address the problem of digital green innovation partner selection. Finally, the standard framework and digital green innovation field model can be applied to the practical partner selection of bioenergy enterprises.
Findings
Digital green innovation technology of superposition of complementarity, mutual trust and resources makes the digital green innovation knowledge from partners to biofuels in the enterprise. The index rating system included eight target layers: digital technology innovation level, bioenergy technology innovation level, bioenergy green level, aggregated digital green innovation resource level, bioenergy technology market development ability, co-operation mutual trust and cooperation aggregation degree.
Originality/value
This study helps to (1) construct the evaluation standard framework of digital green innovation capability based on the dual combination empowerment theory; (2) develop a new digital green innovation domain model for bioenergy enterprises to select digital green innovation partners; (3) assist bioenergy enterprises in implementing digital green innovation practices.
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This study aims to evaluate the effectiveness of HEC digital library resources and services in the public sector universities of Khyber Pakhtunkhwa, Pakistan on the basis of…
Abstract
Purpose
This study aims to evaluate the effectiveness of HEC digital library resources and services in the public sector universities of Khyber Pakhtunkhwa, Pakistan on the basis of research scholars' satisfaction and its impact on their research progress.
Design/methodology/approach
A descriptive survey research method was adopted in order to achieve the objectives of this study. A stratified random sampling technique was used to solicit data from both genders. Research scholars of MS/MPhil and PhD from 14 public sector universities of Khyber Pakhtunkhwa were selected as sampled for this study. A structured questionnaire was developed to collect data and a five-point Likert scale was used to know the purpose and the satisfaction level of respondents with digital library resources. The impact of digital library on research and problems faced by them while using these resources was also measured by using a five-point Likert scale.
Findings
The results of this study indicate that near to one-fourth of the respondents used digital library resources two to three times a week for article writing and thesis or dissertation purposes. The study concluded that digital library provides effective resources and services to research scholars and also found a significant impact on their research progress at these universities. However, research scholars were not satisfied with the support of library professionals regarding the use of digital library resources. The study has identified several problems encountered by respondents in the use of digital library resources and services.
Practical implications
The findings of this study and their implications will be helpful for HEC authorities, universities libraries administrators, decision and policy makers and LIS professionals both in Pakistan and in other places. They should benefit from considering the experience of research scholars with digital library resources. This experience can help future subscriptions, training and use of these resources to maximize research scholars' success and achievement in their research activities.
Originality/value
The study is the first of its kind and an important source for knowing the effectiveness of digital library resources on research scholars' progress at Pakistani universities.
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Mahmood Tahir, Kanapathipillai Sangarapillai and Chowdhury Mahiuddin
This paper demonstrates the application of a new multiaxial creep damage model developed by authors using stress traixiality to predict the failure time of a component made of…
Abstract
This paper demonstrates the application of a new multiaxial creep damage model developed by authors using stress traixiality to predict the failure time of a component made of 0.5% Cr-0.5% Mo-0.25% V low alloy steel. The model employs strain energy density and assumes that the uniaxial strain energy density of a component can be easily calculated and can be converted to multi-axial strain energy density by multiplying it to a function of stress trixiality which is a ratio of mean stress to equivalent stress. For comparison, an elastic-creep and elastic-plastic-creep FEA analysis is performed to get multi-axial strain energy density of the component which is compared with the calculated strain energy density for both cases. The verification and application of the model are demonstrated by applying it to thin tube for which the experimental data are available. The predicted failure times by the model are compared with the experimental results. The results show that the proposed model is capable of predicting failure times of the component made of the above-mentioned material with an accuracy of 4.0%.
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Jun Xiu Low, Poi Ngian Shek and Mahmood Md Tahir
Composite slabs are gaining wide acceptance in many countries as they lend themselves to faster, lighter and more economic in construction buildings. The strength of composite…
Abstract
Composite slabs are gaining wide acceptance in many countries as they lend themselves to faster, lighter and more economic in construction buildings. The strength of composite slabs system relies on the bonding action between the concrete and the steel deck, the shear connections and the cross-sectional resistance of steel beam. However, structural behaviour of composite slab is a complex phenomenon and therefore experimental study is often conducted to establish the actual strength of the structure under ultimate load capacity. The main objective of this study is to determine the structural behaviour of composite slab system until ultimate limit state. Total of two specimens are examined in order to obtain failure mechanism of the composite structure under full load capacity. A new design approach of composite slab for roofing system are proposed in this study to construct a composite slab system that can float in the water but not wash away by flood. The lightweight materials in this composite construction are cold-formed steel and foam concrete. The system focuses on the concept of Industrialised building system (IBS) to reduce the cost and construction time.
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Amjid Khan, Shamshad Ahmed, Asad Khan and Ghalib Khan
The role of digital library resources (DLRs) in accelerating academic and research productivity has been acknowledged worldwide. The purpose of this study is to empirically…
Abstract
Purpose
The role of digital library resources (DLRs) in accelerating academic and research productivity has been acknowledged worldwide. The purpose of this study is to empirically explore the use of DLRs as a predictor of satisfaction and research productivity in the context of Pakistan to examine its impact on engineering research productivity.
Design/methodology/approach
Given the research objectives, the most suitable methodology for this study is survey. The tool used for gathering the research data on the frequency of usage, purpose, satisfaction level and impact of DLRs usage on research productivity was questionnaires.
Findings
The findings of this study showed that the frequency of use of DLRs and purposes of DLRs significantly contributed to the research students’ satisfaction and research productivity. In addition, a significant relationship was found between the predictors (DLRs purposes, DLRs frequency) and outcome variables (users’ satisfaction and research productivity). Thus, all five hypotheses are supported. The findings of this study further suggested the provision of information sources by university libraries to support research efforts and make a scientific knowledge-based society in the country. The findings are also significant for Higher Education Commission (HEC) authorities, university library administrators, Library and Information Science professionals/information providers to develop e-resources and formulate effective usage policies through which they could make effective use of DLRs.
Originality/value
The rationale of the present study is to fill the gap by empirically investigating the association of users’ satisfaction and research productivity with two dimensions of DLRs, namely, DLRs usage frequency and purposes of DLRs usage.
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The purpose of this study is to investigate the academic scientists’ scholarly use of information sources, the disciplinary differences in their use and the barriers encountered…
Abstract
Purpose
The purpose of this study is to investigate the academic scientists’ scholarly use of information sources, the disciplinary differences in their use and the barriers encountered, particularly while using journals.
Design/methodology/approach
A quantitative research design based on the survey method was used to achieve the objectives of this study. A self-administered questionnaire was distributed to all the academic staff of three disciplines – science, life sciences and pharmacy. Together, they constituted 24 departments of the University of the Punjab. This oldest and largest public sector university was selected as a sample.
Findings
The findings showed that e-journals, e-reports and online reference sources were frequently used. The disciplinary differences were found with regard to the use of e-journals and e-books. Users of e-journals lacked skills of advanced searching and were not able to determine the quality of e-journals. Respondents faced certain barriers in usage such as payment of e-journal articles not available through the Library, slow internet speed and lack of information literacy instructions program.
Originality/value
Previous researchers conducted studies that were focused mostly on the academic scientists’ perceptions and the extent of electronic information sources’ use. Researchers in Pakistan mostly examined students and research scholars’ use of electronic information sources and very few studies were conducted to investigate academic scientists’ scholarly information seeking behavior. This study is valuable, as it investigated the scholarly use of information sources by academic scientists and particularly disciplinary differences in their use, digital literacy skills and the barriers encountered while using e-journals.
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