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Article
Publication date: 13 December 2024

Muhammad Waqas, Muhammad Ali Khan, Muhammad Adnan Waseem and Nauman Wajid

Given the lack of understanding surrounding search regret, this study aims to draw on the regret regulatory theory to investigate the outcomes of search regret and effective…

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Abstract

Purpose

Given the lack of understanding surrounding search regret, this study aims to draw on the regret regulatory theory to investigate the outcomes of search regret and effective strategies to reduce its adverse effects.

Design/methodology/approach

Using time-lagged data from 331 salespeople-customers dyads, this study investigates the connection between search regret, store image, interaction quality, and store revisit intentions.

Findings

Customers develop negative perceptions of the store, subsequently reducing their intentions to revisit. Salespeople’s interaction quality can reduce the negative impact of search regret on store image and revisit intentions. Furthermore, store image serves as a mediator between search regret and revisit intentions.

Originality/value

This study marks the first attempt to investigate the store image and revisit intentions as outcomes of search regret and examines the moderating role of salespeople’s interaction quality in reducing the negative consequences of search regret.

Details

International Journal of Retail & Distribution Management, vol. 53 no. 3
Type: Research Article
ISSN: 0959-0552

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Article
Publication date: 10 November 2020

Muhammad Qiyas, Muhammad Ali Khan, Saifullah Khan and Saleem Abdullah

The aim of this study as to find out an approach for emergency program selection.

191

Abstract

Purpose

The aim of this study as to find out an approach for emergency program selection.

Design/methodology/approach

The authors have generated six aggregation operators (AOs), namely picture fuzzy Yager weighted average (PFYWA), picture fuzzy Yager ordered weighted average, picture fuzzy Yager hybrid weighted average, picture fuzzy Yager weighted geometric (PFYWG), picture fuzzy Yager ordered weighted geometric and picture fuzzy Yager hybrid weighted geometric aggregations operators.

Findings

First of all, the authors defined the score and accuracy function for picture fuzzy set (FS), and some fundamental operational laws for picture FS using the Yager aggregation operation. After that, using the developed operational laws, developed some AOs, namely PFYWA, picture fuzzy Yager ordered weighted average, picture fuzzy Yager hybrid weighted average, PFYWG, picture fuzzy Yager ordered weighted geometric and picture fuzzy Yager hybrid weighted geometric aggregations operators, have been proposed along with their desirable properties. A decision-making (DM) approach based on these operators has also been presented. An illustrative example has been given for demonstrating the approach. Finally, discussed the comparison of the proposed method with the other existing methods and write the conclusion of the article.

Originality/value

To find the best alternative for emergency program selection.

Details

International Journal of Intelligent Computing and Cybernetics, vol. 13 no. 4
Type: Research Article
ISSN: 1756-378X

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Article
Publication date: 1 August 2016

Muhammad Azhar Ali Khan and Baqir Muhammad

The aim of this study is to develop a mathematical model for solar power generation system which starts with the quantification of solar resources on different characteristic…

151

Abstract

Purpose

The aim of this study is to develop a mathematical model for solar power generation system which starts with the quantification of solar resources on different characteristic surfaces at any location.

Design/methodology/approach

This study is based on a detailed quantitative analysis of solar potential at three different cities of Saudi Arabia: Riyadh, Mecca and Sharura. Direct normal insolation is calculated for one-axis tracking surfaces with rotation about East–West (EW) and North–South (NS) horizontal axes, a two-axes tracking surface and a fixed surface tilted at the latitude of each location and facing south. One-axis tracking parabolic trough collector with rotation about horizontal EW and NS axes, and photovoltaic systems are modeled; their performances and heat and optical losses from both systems are quantified for each location.

Findings

The findings demonstrate that energy output from the selected solar technologies is maximum and relatively stable in Sharura, whereas Mecca and Riyadh showed large variations during the course of the year.

Originality/value

A comparative analysis between the solar technologies would be very helpful for policy decisions to choose the best option.

Details

World Journal of Engineering, vol. 13 no. 4
Type: Research Article
ISSN: 1708-5284

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Article
Publication date: 13 March 2017

Faizan Saleem, Salman Nisar, Muhammad Ali Khan, Sohaib Zia Khan and Mohammad Aslam Sheikh

The purpose of this paper is to formulate a benchmark to increase the tyre curing press production rate while minimizing tyre curing press downtime and maintenance cost with the…

1320

Abstract

Purpose

The purpose of this paper is to formulate a benchmark to increase the tyre curing press production rate while minimizing tyre curing press downtime and maintenance cost with the help of a maintenance management technique based on overall equipment effectiveness (OEE).

Design/methodology/approach

The methodology is based on determining the OEE of tyre curing press before and after rectifying the causes of failures. The failure mode and effect analysis (FMEA) technique is used to find out the root causes of repetitive failures in tyre curing press by using the risk priority number.

Findings

A significant change in the value of OEE is observed after rectifying the repetitive failures, which were determined using the FMEA technique. Thus, it is concluded that the OEE and FMEA assist in improving the industrial performance and competitiveness of the production equipment studied.

Research limitations/implications

This study is limited to determining the OEE of single equipment only, not the whole production system. Manufacturing facilities are dependent on the operating environment; therefore a comparison of two different manufacturing plants based on the OEE value would not be justified.

Practical implications

This study can be applied in any tyre manufacturing industry in order to take competitive benefits, such as reduction in equipment downtime, increased production and reduction in maintenance cost.

Originality/value

The angle from which the paper approaches the bottleneck problem in a tyre production line is original for the studied company and shows positives results. It allows the company to apply the same approach in its other production equipment, lines and factories to achieve improvement in industrial performance and competitiveness.

Details

Journal of Quality in Maintenance Engineering, vol. 23 no. 1
Type: Research Article
ISSN: 1355-2511

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Article
Publication date: 5 September 2012

Muhammad Muzaffar Ali Khan Khattak, Samsul Draman, Alam Khan and Muhammad Usman Khattak

The purpose of this paper is to compare energy and macro‐nutrients intake in university hostel students in two countries of Asia.

767

Abstract

Purpose

The purpose of this paper is to compare energy and macro‐nutrients intake in university hostel students in two countries of Asia.

Design/methodology/approach

Female students from the hostels of International Islamic University, Malaysia (IIUM), Kuantan Campus and NWFP, Agricultural University Peshawar, Pakistan were assessed for energy and macro‐nutrients intake. A total of 140 students were registered who volunteered to participate in this study. The age range of the registered students was 22‐26 years. On the day of the registration, age, height and weight were recorded; also, food frequency questionnaires (FFQs) were provided. The participants were asked to record alternately for three days whatever they ate during the prescribed week. Out of 140 students 139 returned the FFQs. From the anthropometry, the BMI was used to assess the under, ideal, over‐weight and obese students. From the FFQs, energy and nutrient intakes were calculated using the food composition tables for Malaysia and Pakistan and compared with the recommended nutrients intakes (RNIs).

Findings

The body weight for the required height among the Malaysian students was lower by 7.81 per cent than the reference value, whereas the body weight of Pakistani students matched to the reference weight for height. The Malaysian students were 28.0, 61.0, 5.5 and 0.9 per cent under, ideal, over‐weight and obese, respectively, whereas Pakistani students were 100 per cent in the category of ideal‐body weight. The total energy consumption was higher among Malaysian students by 9.93 per cent compared to the reference requirements, whereas the Pakistani students claimed to meet the requirements. In terms of nutrients balancing the Malaysian students were having the ideal combination of the macro‐nutrients and it was within the recommended range of 55‐60, 15‐20 and 25‐30 per cent for carbohydrates, protein and fat, respectively; whereas the balancing of the macro‐nutrients was poor among the Pakistani students and met the energy requirements at the expense of fat consumption.

Originality/value

The paper suggests that there is imbalance in macro‐nutrients intake among the students.

Details

Nutrition & Food Science, vol. 42 no. 5
Type: Research Article
ISSN: 0034-6659

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Book part
Publication date: 12 June 2023

Babul Hossain, Md Nazirul Islam Sarker, Guoqing Shi and Md. Salman Sohel

Pakistan is one of the most climate change and natural disaster-affected countries in the globe, where the lives and livelihoods of people are repeatedly affected due to these…

Abstract

Pakistan is one of the most climate change and natural disaster-affected countries in the globe, where the lives and livelihoods of people are repeatedly affected due to these natural disasters. Over the past few decades, the country has been impacted by numerous devastating floods, droughts, and storms. As a result, households face enormous complications, particularly those dwelling in disaster-prone areas. Therefore, this study intends to explore the status of household vulnerability and resilience practices of hazard-prone communities in Pakistan from existing literature. This study has identified the 17 most relevant documents. It argues that household vulnerability is increasing consistently with the increasing rate of disaster intensity. Frequent flooding, landslide, erosion, and crop loss are the leading causes of household vulnerability. This study reveals five types of household vulnerability components which look into several livelihood vulnerability indicators of Pakistani households. Moreover, the study unfolds that the main causes of disaster vulnerability are widespread crop loss, a lack of water, loss of soil fertility, and low socioeconomic situations. The major vulnerability components of dwellers are exposure (increasing summer duration, the rapid increase of population house build-up in the riparian areas, and increasing occurrence of hailstorms), sensitivity, low access to education facilities, human loss, diseases infestation, food insecurity, and social conflict), and less adaptive capacity (social networks, migration, poor emergency services, multiple income sources, and less access to the health facility). To address the household vulnerability, this study has also identified four key aspects of resilience, like social resilience, economic resilience, institutional resilience, and physical resilience. The findings will effectively help to understand the dynamics of household vulnerability and resilience and its measurement and management strategy from developed indicators.

Details

Disaster, Displacement and Resilient Livelihoods: Perspectives from South Asia
Type: Book
ISBN: 978-1-80455-449-4

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Article
Publication date: 8 June 2015

Muhammad Ali Khan, Ahmed Farooq Cheema, Sohaib Zia Khan and Shafiq-ur-Rehman Qureshi

The purpose of this paper is to show the development of an image processing-based portable equipment for an automatic wear debris analysis. It can analyze both the qualitative and…

306

Abstract

Purpose

The purpose of this paper is to show the development of an image processing-based portable equipment for an automatic wear debris analysis. It can analyze both the qualitative and quantitative features of machine wear debris: size, quantity, size distribution, shape, surface texture and material composition via color.

Design/methodology/approach

It comprises hardware and software components which can take debris in near real-time from a machine oil sump and process it for features diagnosis. This processing provides the information of the basic features on the user screen which can further be used for machine component health diagnosis.

Findings

The developed system has the capacity to replace the existing off-line methods due to its cost effectiveness and simplicity in operation. The system is able to analyze debris basic quantitative and qualitative features greater than 50 micron and less than 300 micron.

Originality/value

Wear debris basic features analysis tool is developed and discussed. The portable and near real-time analysis offered by the discussed work can be more technically effective as compared to the existing off-line and online techniques.

Details

Industrial Lubrication and Tribology, vol. 67 no. 4
Type: Research Article
ISSN: 0036-8792

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Article
Publication date: 28 October 2013

Muhammad Muzaffar Ali Khan Khattak, Muhammad Taher, Suzanah Abdulrahman, Ibrahim Abu Bakar, Rizal Damanik and Azhary Yahaya

The aim of this study was to evaluate anti-bacterial anti-fungal activity of six Lamiaceae family coleus plants based on their traditional uses (breast-milk stimulants) from two…

333

Abstract

Purpose

The aim of this study was to evaluate anti-bacterial anti-fungal activity of six Lamiaceae family coleus plants based on their traditional uses (breast-milk stimulants) from two Asian countries (Malaysia and Indonesia).

Design/methodology/approach

Plants leaves of coleus species were collected from Kuantan (Malaysia) and Jakarta (Indonesia). From Kuantan, Coleus aromaticus – Malaysia (CATM), Pogostemon cablin – Malaysia (PCM), Coleus blumei-purple leaves – Malaysia (CBPM), Coleus blumei-red leaves – Malaysia (CBRM), Coleus amboinicus – Malaysia (CALM) and from Jakarta Coleus amboinicus – Indonesia (CALI) were collected freeze dried and extracted with aqueous methanol. The antimicrobial activity of the extract was determined by making use of macro dilution and disc diffusion methods. The selected bacteria and fungus used were namely Bacillus subtilis and Staphylococcus aureus (gram positive) and Escherichia coli and Pseudomonas aeruginosa (gram negative) and Candida albicans (a fungi).

Findings

All leaf extracts showed activity at least against one strain of bacteria and the result shows that there were significant differences (p<0.05) between the activities on microorganism. The minimum inhibitory concentration of all leaves extracts ranged from 1.0 to 2.0 mg/ml in inhibiting the growth of S. aureus, E. coli, P. aeruginosa and B. subtilis. This study shows that the coleus plants leaves can be used as anti-bacterial anti-fungal agent apart from the breast-milk stimulation properties.

Research limitations/implications

This research was carried out with a limited grant and it was not possible to study some more aspects, for example, the composition and the active components isolation, etc. Furthermore, to establish the relationship among the components and bacteria or fungus, etc.

Practical implications

This research would have greater impact since the leaves of coleus plants are already in use in some communities for the purpose of breast-milk stimulation and insect bite therapy and many more.

Originality/value

This research takes into consideration the effect of coleus plants on a few bacteria and a fungus which have never been studied before.

Details

Nutrition & Food Science, vol. 43 no. 6
Type: Research Article
ISSN: 0034-6659

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Article
Publication date: 13 July 2012

Muhammad Muzaffar Ali Khan Khattak, Ibrahim Abu Bakar and Layana Yeim

The purpose of this paper is to evaluate the effect of fasting on blood lipid profile in fasting obese and non‐obese subjects.

276

Abstract

Purpose

The purpose of this paper is to evaluate the effect of fasting on blood lipid profile in fasting obese and non‐obese subjects.

Design/methodology/approach

Male and female subjects from the International Islamic University, Malaysia (IIUM), Kuantan Campus were assessed for body compositional changes during Ramadan fasting. In total, 25 males and females volunteered to participate in this study in the holy month of Ramadan. The mean age of the volunteers was 26.5±5.86 years and the age range was 21‐45 years. The age, weight and height of the volunteers were recorded on day 1 of Ramadan and weight was also recorded on day 21. The volunteers were asked for donation of blood samples on days 1, 7, 14 and 21 of the Ramadan. The blood serum was separated and stored at −20°C immediately after each collection. The serum samples stored at −20°C were analyzed for serum glucose and lipid profile. The analysis of serum lipid profile was performed with the help of clinical kits from Bayer Health Care using Bayer Express Plus Clinical analyzer. The serum was used for the estimation of total cholesterol (TC), HDL‐cholesterol (HDL‐c) and triglycerides (TG) concentrations using kit reagents from M/s Bayer Diagnostics, whereas low density lipoprotein cholesterol (LDL‐c) was determined by calculation. The statistics were performed using MINITAB statistical software (release 8.2).

Findings

The serum triglyceride concentration was significantly reduced and the reduction was 17.48 percent from day 1‐21. The serum TC concentration also reduced from day 1‐21 and the reduction was 15.93 percent. The serum LDL‐c concentration also significantly reduced from day 1‐21 and the reduction was 21.67 percent. The serum HDL‐c concentration decreased in the first weak and second week but an improving trend was observed on day 21 of the Ramadan.

Research limitations/implications

This study was not a controlled one and was conducted on free‐living individuals and therefore there is need to have controlled or adjusted physical activities studies in fasting individuals. It is always difficult to conduct experiment on human beings in the metabolic area. Furthermore, in this study it was not possible since it was a religious fasting. Another limitation is that the size of the sample was smaller than is advisable for this kind of study. However, the results were confirmed in the following month of Ramadan, as described in the paper.

Originality/value

The paper takes into consideration the effect of Ramadan fasting on blood lipid profile, which has ever been studied in obese individuals.

Details

Nutrition & Food Science, vol. 42 no. 4
Type: Research Article
ISSN: 0034-6659

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Article
Publication date: 17 May 2013

Muhammad Muzaffar Ali Khan Khattak, Nik Mazlan Mamat, Wan Azdie Mohd Abu Bakar and Mohd Firdaus Nazri Shaharuddin

This study was designed with the aim of assessing the energy and nutrient intakes of male university students before and during Ramadan and comparing it with the Recommended…

1742

Abstract

Purpose

This study was designed with the aim of assessing the energy and nutrient intakes of male university students before and during Ramadan and comparing it with the Recommended Nutrient Intake (RNI) of Malaysia.

Design/methodology/approach

A total of 30 male students aged between 19‐24 years from International Islamic University Malaysia (IIUM) Kuantan Campus were recruited before Ramadan. The height, weight, waist and hip circumferences were recorded on day one of Ramadan and also recorded on day 21 of Ramadan to assess the changes. From the weight and height, the body mass index was calculated and from the waist and hip circumference, the waist‐to‐hip ratios were calculated. The respondents were requested to keep three days food record in household measurements; once prior to fasting and once during the third week of Ramadan. The records were then analyzed using Malaysian Food Composition Table and Food Atlas to get the averages of energy and macronutrients intakes of the subjects.

Findings

After 21 days of Ramadan, the results revealed that there was reduction in the body weight and there was significant (P<0.05) improvement in the waist‐to‐hip ratio of the subjects. The effect was more prominent in the normal‐weight compared to overweight respondents. The mean energy and protein intakes were significantly (P<0.001) lower than the RNI for Malaysians of similar age group. However, mean energy and protein intakes increased during Ramadan compared to the first day of Ramadan. This study indicates that Ramadan fasting does not affect energy and macronutrients intake but only the routine of intake is affected.

Research limitations/implications

This research was limited to a specific group of normal and overweight students who were residing on campus of the IIUM. Their intakes might not be consistent with those at home or living outside the university campus. Another thing is that the students might have over‐reported their energy and macro‐nutrients intakes compared to what they have consumed in reality. So, the self‐reported intakes could not be ascertained. The stated factors might have confounding effects on the finding of this research.

Practical implications

Most research argues that the body weight loss during Ramadan fasting is due to reduced energy consumption; however, this is not true in all cases. This study infers that there is no reduction in the total energy consumption, rather there is a change in the pattern of energy intake. This brief study would help researchers planning to conduct research on Ramadan fasting and will caution fasting readers about the intakes.

Originality/value

This study indicates that during Ramadan fasting does not affect energy and macro‐nutrients intake but only the schedule of intake is affected.

Details

Nutrition & Food Science, vol. 43 no. 3
Type: Research Article
ISSN: 0034-6659

Keywords

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