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Article
Publication date: 15 July 2022

Muhammad Yasir Faheem, Muhammad Basit Azeem, Abid Ali Minhas, Shun'an Zhong and Xinghua Wang

RF transceiver module is considered a vital part of any wireless communication system. This module consists of two important parts the RF transceiver and analog-to-digital…

Abstract

Purpose

RF transceiver module is considered a vital part of any wireless communication system. This module consists of two important parts the RF transceiver and analog-to-digital converter (ADC). Usually, both these parts – RF transceiver and ADC – are used to enhance the perspective of size and power. The data processing in 4G communication makes hurdles and need research attention to make it faster and smaller in size. Accuracy and fast processing are the critical challenges in the modern communication system.

Design/methodology/approach

After theoretical and practical investigations, this research work proposes key new techniques for the RF transceiver module. These techniques will make RF transceiver small, power-efficient and on the other hand, make dual SAR-ADC more effective as well. The proposed design has no intermediate frequency where the RF transceiver is reduced its major blocks from five to four, which includes crystal oscillator, phase lock loop, power amplifier and low noise amplifier. Moreover, the shared circuitry is introduced in the architecture of the SAR-ADC for the production of dual outputs, specifically in bootstrapped switch and comparator.

Findings

The miniaturized RF transceiver and SAR-ADC are well tested separately before the plantation on the printed circuit board (PCB). The operating voltage and frequency of the RF transceiver module are 1.2 V and 5.8 GHz, where the sampling rate, bandwidth and output power are 25 MHz, 200 MHz and 5 dBm, respectively. The core area of the PCB is 58.13 mm2. The bandwidth efficiency is 93% using surface acoustic wave less transmitter. The circuit is based on the library of 90 nm CMOS technology.

Originality/value

The entire circuit is highly synchronized with the input and reference clocks to avoid self-interference.

Details

Microelectronics International, vol. 39 no. 4
Type: Research Article
ISSN: 1356-5362

Keywords

Article
Publication date: 16 February 2022

Ali Abid and Shang Jie

This study aims to determine the non-economic factors that probably influence the Pakistani farmers to use Islamic finance for agricultural production. This paper analyzes the…

Abstract

Purpose

This study aims to determine the non-economic factors that probably influence the Pakistani farmers to use Islamic finance for agricultural production. This paper analyzes the other religiosity and familial leadership constructs in the standard theory of planned behavior (TPB) model from the Islamic banking perspective.

Design/methodology/approach

Data were collected from 233 farmers using snowball sampling techniques and partial least square structural equation modeling used for data analysis. An additional qualitative analysis was conducted of seven respondents through semi-structured interviews to deepen into knowledge about Islamic banking.

Findings

The findings demonstrate that attitude, subjective norms, religiosity and familial leadership to use Islamic banking among the farmers play a primary motivating role in manipulating their behavioral intentions to use it. However, PBC negatively affected the behavior of farmers to use Islamic banking.

Practical implications

This study highlights the importance of emotional attachment between the farmers and Islamic financial products according to Shariah law. Therefore, Islamic banks need effective strategies for the development of innovative products in the agricultural sector according to the Shariah principle.

Originality/value

The research contributes to the area of Islamic banking, demonstrating that “familial leadership” significantly influences an individual’s behavior toward decision-making to use Islamic finance.

Article
Publication date: 1 April 2019

Farah Hayat, Abid Ali Khan and Muhammad Arif Ashraf

Analysis of relationship between energy and growth offers the sustainable energy pathway for a country’s sustainable economic development. This study aims to focus on the…

Abstract

Purpose

Analysis of relationship between energy and growth offers the sustainable energy pathway for a country’s sustainable economic development. This study aims to focus on the evaluation of the Pakistan’s energy system using long-run energy alternative planning (LEAP) modeling framework through different growth scenarios.

Design/methodology/approach

Principal component analysis has been adopted for indicators index formation. Study period of 1980 to 2030 is covered by forward and backward simulations in LEAP software.

Findings

The study reveals that current energy policy does not have the potential to lead the country toward a desired goal of economic sustainability.

Research limitations/implications

In falling off scenario, negative growth rate (-5 per cent) assumption is also debatable; LEAP shows an error in the analysis and takes the last positive available value for any further analysis as a default. This case could have been simply omitted from results but for research contribution, the computations for this case are also reported.

Practical implications

Long-range energy alternative planning model has been applied to answer the corresponding question for simulation period of 1980 to 2030 to better compare the past trend and future expectations. Critical analysis of four selected scenarios (BAU, moderate, advanced and falling off) indicate that energy policy of Pakistan is poorly managed to maintain energy system’s effectiveness.

Social implications

As far as statistical difference is concerned, early years have more fluctuation; however, from 2009, curve flattens for energy consumption and energy demand. The increasing demand of energy impacts the society and hence disturbs all sectors.

Originality/value

Policymakers have been so dragged off from the main route to sustainability, despite all odds there is a huge unexplored potential in the country for use to move in step with the world for a better tomorrow. The study educates the policymakers to comprehend the future energy scenarios and make rational decisions based on the study outcomes.

Details

International Journal of Energy Sector Management, vol. 13 no. 1
Type: Research Article
ISSN: 1750-6220

Keywords

Article
Publication date: 1 May 2020

Habibullah Magsi, Abid Ali Randhawa and Atta Hussain Shah

The purpose of this paper is to explore halal meat production potential and export potential in Pakistan. Following this, the paper is to both stimulate the business and encourage…

Abstract

Purpose

The purpose of this paper is to explore halal meat production potential and export potential in Pakistan. Following this, the paper is to both stimulate the business and encourage research within this field.

Design/methodology/approach

For this study, both primary and secondary data were used. Time-series meat production and export data from 1994-1995 to 2015-2016 were collected from different secondary sources; where primary data were collected from distinguish livestock experts on the possibility of halal meat production in various provinces of the country.

Findings

Results show that during 1994-1995 to 2015-2016, annual average growth rates of meat production and export were 3 and 32%, respectively. Based on these growth rates, it was estimated that Pakistan's total meat production and export is projected to be 6,078 thousand tons and $17,477m by 2029-2030. Results regarding the expert opinion survey indicates that Balochistan province has comparative advantage to rare livestock for beef and mutton meat production over rest of the provinces; there is potency for producing chicken meat in Khyber Pakhtunkhwa (KPK) and Punjab provinces, while Sindh province has almost the same efficiency to produce beef and chicken meat.

Practical implications

Experts were in opinion that high yielding livestock breeds should be introduced to farmers; and comprehensive training programs should be designed for all the stockholders involved in meat production, and processing to exports chains. Therefore, it is suggested that registered and corporate livestock farming can be only solution to fulfill required standards of raw and processed meat business in international markets.

Originality/value

At current, halal meat export is considered as major activity of livestock sector of Pakistan: where, this is one of the pioneer studies exploring potential of halal meat production in various parts of the country, which can not only contribute in national income but support the balance of payments of the country.

Details

Journal of Islamic Marketing, vol. 12 no. 5
Type: Research Article
ISSN: 1759-0833

Keywords

Book part
Publication date: 11 December 2023

Muhammad Azeem

Pakistan had never been a place of serious and nuanced debate and contestation of politics of postcolonial critique, that is, the continuity of economic, political, and cultural…

Abstract

Pakistan had never been a place of serious and nuanced debate and contestation of politics of postcolonial critique, that is, the continuity of economic, political, and cultural dependency of newly independent countries (NICs) on ex-colonizers as pointed out by neocolonialism, dependency theory, and postcolonial theory, respectively. Instead, Pakistan is presented by extant liberal academic literature as a “failed nation” and a state dominated by the military and plagued by religious extremism. As opposed to this, through the literary and activists writings of Aziz-ul-Haq, this chapter will try to illustrate how cultural contestation of the nation-building project postindependence from British rule was a lot more complex and interesting in Pakistan. This was so because the nation-building project of Pakistan was, on the one hand, an amalgamation of Indo-Persian, Arab, Indian, and Western colonial and civilizational influences and, on the other hand, entailed suppression of resilient local and national cultures of its constituent nationalities developed over centuries. This was later expressed in ethno-nationalist politics. However, when it came to the politics of the marginalized in the late 1960s, there were important political, theoretical, and literary insights which caused a change in the direction of political practice in Pakistan, which paralleled the politics expressed by writers like Fanon and early Subaltern Studies influenced by the Naxal Movement in India. The contestation and confusion arising from this dialectic also entered Pakistan's literary and cultural sphere. This chapter not only tries to give a different postcolonial critique of the failure of nation-building project in Pakistan but, though at a preliminary level, is an attempt to separate the original postcolonial theory in its radical tradition from contemporary postmodern/poststructuralist postcolonial theory marked with pessimism and resignation.

Article
Publication date: 21 August 2013

Michael Quinn, Ali Nadjai, Faris Ali and Abid Abu-Tair

Breakage and fallout of glazing systems create openings in an enclosure that affect the fire growth and the development of post flashover flames emerging outside of the openings…

Abstract

Breakage and fallout of glazing systems create openings in an enclosure that affect the fire growth and the development of post flashover flames emerging outside of the openings. The behaviour of glazing is the result of its thermally induced stress response to the heat fluxes from the fire in an enclosure. In recent times building façade designs have evolved and now incorporate many different shapes, orientations and materials. The conventional single and double glazing panels have been surpassed by composite type glazing systems including glazing and transparent resins. This paper presents experimental testing of these comp osite glazing panels having different orientations subjected to localized fires, which have the same fire load. The experimental findings of interest include the varying first crack times for both scenarios as well as the variable final crack patterns on the glazing panels. The effect of localized fire on the materials tested as seen in the final char patterns on both glazing systems is also note worthy. The paper also includes details of three-dimensional finite element modeling completed for the prediction of response of the glazing panels at different orientations to the elevated temperatures of the localised fire scenario as tested in the laboratory. This finite element analysis allows for an assessment of glazing thermal stresses at various times throughout each test.

Details

Journal of Structural Fire Engineering, vol. 4 no. 3
Type: Research Article
ISSN: 2040-2317

Keywords

Expert briefing
Publication date: 15 August 2018

The large number of arrivals since 2015 has highlighted two challenges for Europe: the removal of asylum seekers whose claims are rejected and the integration into society of…

Details

DOI: 10.1108/OXAN-DB236839

ISSN: 2633-304X

Keywords

Geographic
Topical
Article
Publication date: 17 December 2019

Nilankush Acharya, Suprakash Maity and Prabir Kumar Kundu

Hybrid nanofluids are of significant engrossment for their considerable heat transport rate. The steady flow of an incompressible viscous electrically conducted hybrid nanofluid…

Abstract

Purpose

Hybrid nanofluids are of significant engrossment for their considerable heat transport rate. The steady flow of an incompressible viscous electrically conducted hybrid nanofluid is considered over a rotating disk under a magnetic field. Titanium oxide (TiO2) and ferrous (CoFe2O4) nanoparticles are used with their physical properties and water is considered as host liquid. The purpose of this paper is to analyze how hydrothermal integrity varies for hybrid nanosuspension over a spinning disk in the presence of magnetic orientation.

Design/methodology/approach

Governing equations with boundary conditions are transformed by similarity transformations and then solved numerically with RK-4 method. A comparison of linear and nonlinear thermal radiation for the above-mentioned parameters is taken and the efficiency of nonlinear radiation is established, the same over nanofluid and hybrid nanofluid is also discussed. Heat lines are observed and discussed for various parameters like magnetic field, concentration, suction and injection parameter, radiation effect and Prandtl number.

Findings

Suction and increasing nanoparticle concentration foster the radial and cross-radial velocities, whereas magnetization and injection confirm the reverse trend. The rate of increment of radial friction is quite higher for the usual nanosuspension. The calculated data demonstrate that the rate for hybrid nanofluid is 8.97 percent, whereas for nanofluid it is 15.06 percent. Double-particle suspension amplifies the thermal efficiency than that of a single particle. Magnetic and radiation parameters aid the heat transfer, but nanoparticle concentration and suction explore the opposite syndrome. The magnetic parameter increases the heat transport at 36.58 and 42.71 percent for nonlinear radiation and hybrid nanosuspension, respectively.

Originality/value

Nonlinear radiation gives a higher heat transport rate and for the radiation parameter it is almost double. This result is very significant for comparison between linear and nonlinear radiation. Heat lines may be observed by taking different nanoparticle materials to get some diverse result. Hydrothermal study of such hybrid liquid is noteworthy because outcomes of this study will aid nanoscience and nanotechnology in an efficient way.

Details

Multidiscipline Modeling in Materials and Structures, vol. 16 no. 4
Type: Research Article
ISSN: 1573-6105

Keywords

Article
Publication date: 10 April 2017

Kamal Hamaz and Fouzia Benchikha

With the development of systems and applications, the number of users interacting with databases has increased considerably. The relational database model is still considered as…

439

Abstract

Purpose

With the development of systems and applications, the number of users interacting with databases has increased considerably. The relational database model is still considered as the most used model for data storage and manipulation. However, it does not offer any semantic support for the stored data which can facilitate data access for the users. Indeed, a large number of users are intimidated when retrieving data because they are non-technical or have little technical knowledge. To overcome this problem, researchers are continuously developing new techniques for Natural Language Interfaces to Databases (NLIDB). Nowadays, the usage of existing NLIDBs is not widespread due to their deficiencies in understanding natural language (NL) queries. In this sense, the purpose of this paper is to propose a novel method for an intelligent understanding of NL queries using semantically enriched database sources.

Design/methodology/approach

First a reverse engineering process is applied to extract relational database hidden semantics. In the second step, the extracted semantics are enriched further using a domain ontology. After this, all semantics are stored in the same relational database. The phase of processing NL queries uses the stored semantics to generate a semantic tree.

Findings

The evaluation part of the work shows the advantages of using a semantically enriched database source to understand NL queries. Additionally, enriching a relational database has given more flexibility to understand contextual and synonymous words that may be used in a NL query.

Originality/value

Existing NLIDBs are not yet a standard option for interfacing a relational database due to their lack for understanding NL queries. Indeed, the techniques used in the literature have their limits. This paper handles those limits by identifying the NL elements by their semantic nature in order to generate a semantic tree. This last is a key solution towards an intelligent understanding of NL queries to relational databases.

Details

Journal of Enterprise Information Management, vol. 30 no. 3
Type: Research Article
ISSN: 1741-0398

Keywords

Open Access
Article
Publication date: 19 September 2017

Wahid Ullah, Takaaki Nihei, Muhammad Nafees, Rahman Zaman and Muhammad Ali

This study aims to investigate risks associated with climate change vulnerability and in response the adaptation methods used by farming communities to reduce its negative impacts…

8683

Abstract

Purpose

This study aims to investigate risks associated with climate change vulnerability and in response the adaptation methods used by farming communities to reduce its negative impacts on agriculture in Pakistan.

Design/methodology/approach

The study used household survey method of data collection in Charsadda district of Khyber Pakhtunkhwa province, involving 116 randomly selected respondents.

Findings

Prevalent crops diseases, water scarcity, soil fertility loss and poor socio-economic conditions were main contributing factors of climate change vulnerability. The results further showed that changing crops type and cultivation pattern, improved seed varieties, planting shaded trees and the provision of excessive fertilizers are the measures adapted to improve agricultural productivity, which may reduce the climate change vulnerability at a household level.

Research limitations/implications

The major limitation of this study was the exclusion of women from the survey due to religious and cultural barriers of in Pashtun society, wherein women and men do not mingle.

Practical implications

Reducing climate change vulnerability and developing more effective adaptation techniques require assistance from the government. This help can be in the form of providing basic resources, such as access to good quality agricultural inputs, access to information and extension services on climate change adaptation and modern technologies. Consultation with other key stakeholder is also required to create awareness and to build the capacity of the locals toward reducing climate change vulnerability and facilitating timely and effective adaptation.

Originality/value

This original research work provides evidence about farm-level vulnerability, adaptation strategies and risk perceptions on dealing with climate-change-induced natural disasters in Pakistan. This paper enriches existing knowledge of climate change vulnerability and adaptation in this resource-limited country so that effective measures can be taken to reduce vulnerability of farming communities, and enhance their adaptive capability.

Details

International Journal of Climate Change Strategies and Management, vol. 10 no. 3
Type: Research Article
ISSN: 1756-8692

Keywords

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