20 research outputs found
CUSTOMER SATISFACTION WITH ONLINE FOOD ORDERING PORTALS IN QATAR
No full textThe recent boom in online food ordering and delivery in Qatar has led to increased competition among service providers within the industry. Identifying the lack of research in the context of Qatar’s online food industry, this study aims to determine the key success factors that lead to customer satisfaction and loyalty, as well as customers’ satisfaction levels with their respective service providers.
Data was collected from 263 random customers through an online questionnaire and analyzed to test the hypotheses of the research model and answer the research questions. By applying multivariate regression analyses to assess the proposed model, this study confirms that while restaurant quality has no direct effect on customer satisfaction and loyalty, service provider quality does. Moreover, this study sheds light on the mediation role of customer satisfaction on the relationship between service provider quality and loyalty. Overall, the study provides valuable insights for the successful operation of online food ordering services in Qatar
Utilizing radio frequency identification in libraries: The case of Qatar
No full textNowadays, RFID technology is widely being used in libraries across the world. This study is in line with global literature pertaining to the implementation of RFID technology in libraries and intends to explore and examine the perceptions of employees from two libraries in Qatar. Data was collected from both staff and managers using two separate surveys. The perceptions of both sets of employees were analyzed and compared to highlight the differences in benefits, drawbacks, and issues concerning the implementation of RFID in contrast to barcode. 'Shelf management of resources,' 'perceived RFID contributions,' and 'workplace efficiency' were the top 3 rated dimensions pertaining to the use of RFID. Additionally, 'increased customer satisfaction' was rated the highest among the reasons as to why RFID is adopted in libraries and the fact that all negative decision determinants were moderately perceived when compared to the positive ones indicates the overall positive attitude of managers in these libraries towards RFID technology. Further conclusions and future work are proposed at the end of the study
Customer satisfaction with online food ordering portals in Qatar
No full textThe recent boom in online food ordering and delivery in Qatar has led to increased competition among service providers within the industry. Identifying the gap in research in the context of Qatar's online food industry, this study aims to determine the key success factors that lead to customer satisfaction and loyalty, as well as customers' satisfaction levels with their respective service providers. 263 surveys were randomly collected through an online questionnaire and analyzed to test the hypotheses of the research model and answer the research questions. By applying path analysis to assess the proposed model, this study confirms that while restaurant quality has no direct effect on customer satisfaction and loyalty, service provider quality does. Moreover, this study sheds light on the mediation role of customer satisfaction on the relationship between service provider quality and loyalty. Overall, the study provides valuable insights for the successful operation of online food ordering services in Qatar
Antifertility effects of the petroleum ether extract of Physalis minima on female albino rats
No full textAdministration of the petroleum ether extract of leaves of P. minima (collected from India) to female albino rats altered their regular cyclicity. Rats treated with the extract (p.o.) exhibited variations in uterine and ovarian weights and caused significant histopathological changes in the histoarchitecture of ovary, oviduct and uterus. Extract administration showed inhibitory effects of a transient nature..RE: 19 ref.; SC: HE; CA; HO; 0C; 5CSource type: Electronic(1) http://upei-resolver.asin-risa.ca?sid=SP:CABI&id=pmid:&id=&issn=&isbn=&volume=37&issue=4&spage=269&pages=269-272&date=1999&title=Pharmaceutical%20Biology&atitle=Antifertility%20effects%20of%20the%20petroleum%20ether%20extract%20of%20Physalis%20minima%20on%20female%20albino%20rats.&aulast=Sudhakaran&pid=%3Cauthor%3ESudhakaran%2c%20S%3bRamanathan%2c%20B%3bGanapathi%2c%20A%3C%2Fauthor%3E%3CAN%3E20000307587%3C%2FAN%3E%3CDT%3EJournal%20article%3C%2FDT%3
Opto-Geometric Modelling of Complex Urban Landscapes
No full textThe injection of renewable energy into the grid requires meticulous planning and execution due to the unpredictable nature of weather and in-turn the energy generated by these sources. Moreover, the inclusion of grid-independent energy generators requires accurate tools to predict energy yield in order to simplify matters such as grid-congestion management. One such tool useful to compute solar energy yield, which is under development, is the PVMD toolbox from the PhotoVoltaic Devices and Materials research group within the Delft University of Technology. This toolbox, which is completely based on MATLAB , allows users to specify parameters ranging from the micro-scale (such as the chemistry and characteristics of a single cell) to the macro-scale (such as the electrical parameters of the whole system).However, in its present version, the toolbox can simulate the yield only forsimple systems, such as a single PV panel without any obstructions present nearby.This makes it incompatible to solve complex problems such as models with solar panels installed in the built environment.Therefore, the primary focus of this thesis is on the optical side of the PV simulation, by enabling the toolbox to precisely compute reflected component of irradiance and include shading effects on modules from nearby objects in the scene. This functionality will help consider the presence of features such as dormers, chimneys and highly reflective surfaces present in urban environments which contribute to solar power output. To achieve this, attention was paid towards the formats and sources of geometric data (3D objects in particular) which could be used as an input in the toolbox. Once the data format was selected, the 3D object is parsed into a MATLAB readable format and refined in order to preserve geometric information.Afterwards, the scene was completed by enumerating the geometric data ofthe solar cells and placing them beside the object or on an external surface of the object. Optical properties were then obtained in the form of spectral reflectance data from NASA’ ECOSTRESS Library and converted into the appropriate format to assign these material properties to the geometries. This Opto-geometric data is then parsed back into a file which can be read by RADIANCE, a visual rendering software capable of backward ray-tracing. This ray-tracing technique is used to obtain the irradiance available for each solar cell at a given time instant.The developed workflow is validated by comparing it with real data stored at the PV Monitoring Station within the TU Delft Campus. For the given data-set, the mean percentage error is computed to be 1.89% , with a standard deviation of 12.49%. This proves that the proposed workflow is suitable to visualise shading performance and the effect of reflected irradiance. This model can be further improved by considering parameters such as spectrally responsive albedo and inclusion of other geometry formats. The outputs from this project can also be used as inputs to compute the spectral absorptance of different layers within a solar cell, such as tandem solar cells or develop sensitivity maps for different modules present in the scene.PVMD ToolboxElectrical Engineering | Sustainable Energy Technolog
Data-driven Business Model for a breakthrough technological product
No full textProblem: Lack of Water Sanitation is a global problem due to the experiment-based research required in its field, hindering scientific progress. Commercializing breakthrough technologies in Water Sanitation into the market is uncertain and there comes a requirement to design to appropriate business models. The emergence of Big Data has led firms to potentially gain a competitive advantage and firms need to understand how Big Data creates changes in business models. Managers in the Wastewater industries aim to diffuse breakthrough technologies by leveraging big data. Goal/Objective: The objective of this thesis is to understand and study how Big data creates changes in Business Models for firms. This study helps firms diffuse breakthrough technological products and contribute to the niche literature on Data-driven Business Models (DDBM).Design/Methodology/Approach: This thesis consists of a Single Case Study Design within a firm with a breakthrough technological product. The study consists of 17 semi-structured interviews across various units of analysis and a Focus Group exercise with 6 participants of a business unit with a breakthrough technological product. The interviews and archival records are transcribed, coded and analysed through a qualitative data software and a logical chain of evidence is maintained for validity and reliability.Findings: The Case Study research has dealt deeper into the dimensions of the business model for a firm where there are significant changes in the Value Creation & Value Proposition phase of a Business Model. The study showcases how a Datatized Organization can be achieved by leveraging Big Data, what the organization management and governance changes are required, what the various data-driven activities are in order to leverage big data, and what the data-driven competencies that are needed to perform the various data-driven activities. Furthermore, a Data-driven Value Proposition has been derived for a business unit.Research Limitation/Implications: Due to the lack of a team of investigators to collect the necessary data from multiple cases and coding the qualitative data was not possible due to the characteristic of the specific master thesis project. However, various validation and generalization techniques have been used to build the internal, external and construct validity. The thesis provides future researchers to aid the theoretical development of logically consistent explanations of the relationships (linkages) between well-defined components (constructs) of DDBMs.Originality/Value: This study highlights how Big Data creates changes in the business models of firms with a breakthrough technological product, thereby adding to the body of knowledge of Data-driven business models. The uniqueness of this study is the breakthrough technological product that was chosen to keep the Value Proposition phase of the business model as constant as possible and study the changes in the other phases.Management of Technology (MoT
User-Generated Content’s Impact on the Sustainability of Open Educational Resources
No full textSustainability is a fundamental requirement to ensure long-term viability of open educational resource (OER) initiatives. To afford technology upgrades and author costs, most of the existing initiatives are heavily reliant on continued funding; limiting OER models to invest in commissioned works. User-generated resources come as a solution to this problem, although a fairly novel concept to the area of child literacy. Consequently, there is little evidence available in earlier literature on their use for education. With online platforms such as social media and gaming sites encouraging users to collaborate and create original content, user-generation is a potential instrument for circumventing costs and achieving rapid dissemination of works. However, it also presents a significant downside – questionable quality. This paper discusses the use of user-created OERs for literacy, exploring the quality and sustainability implications that arise from this creation method and the measures undertaken by an Indian organization to overcome the same
Digital Preservation Appliance Based on OpenBSD
No full textThe LOCKSS program has developed and deployed in a world-wide test a system for preserving access to academic journals published on the Web. The fundamental problem for any digital preservation system is that it must be affordable for the long term. To reduce the cost of ownership, the LOCKSS system uses generic PC hardware, open source software, and peer-to-peer technology. It is packaged as a ``network appliance'', a single-function box that can be connected to the Internet, configured and left alone to do its job with minimal monitoring or administration. The first version of this system was based on a Linux boot floppy. After three years of testing it was replaced by a second version, based on OpenBSD and booting from CD-ROM.
We focus in this paper on the design, implementation and deployment of a network appliance based on an open source operating system. We provide an overview of the LOCKSS application and describe the experience of deploying and supporting its first version. We list the requirements we took from this to drive the design of the second version, describe how we satisfied them in the OpenBSD environment, and report on the initial
Influence of Soil Properties and Composition, and Applied Hydraulic Pressures on Sample Quality of Pusan Clays
No full textObtaining good quality samples from soft marine clay deposits is a challenge and it is being seen that the sample disturbance is inevitable even though lot of research has suggested using more sophisticated samplers, sampling methods, and special care being taken while handling and transportation of the samples. Hence, author doubt that apart from the above, there could also be other parameters playing critical role on the sample quality. Therefore, in the current study, sampling tube geometry is maintained same, especially angle of cutting edge and area ratio which are found to be key influencing factors and hence its impact on the current study is ignored. In the current study in order to assess the other contributing factors behind the additional sample disturbance, a special attention is given to find out other possible parameters that could also influence the sample quality. As a result of this study, it is found that the soil properties such as; silt and sand content in the soil, clay fraction, hydraulic pressure applied to penetrate the sampler, rigidity index of the soil, initial void ratio, plasticity index, and unit weight of the soil also contribute to sample disturbance. Since these properties, except hydraulic pressure, are soil inherent properties, there is always a certain minimum degree of sample disturbance associated with these soil inherent properties depending on the magnitude of these parameters. Unfortunately, the soil properties cannot be changed and thus a minimum sample disturbance is inevitable. </jats:p
