Search results
1 – 10 of over 1000Islamic endowment (awqaf), particularly awqaf land, is one of the potential Islamic social assets to serve the public interest, particularly to provide public infrastructures such…
Abstract
Purpose
Islamic endowment (awqaf), particularly awqaf land, is one of the potential Islamic social assets to serve the public interest, particularly to provide public infrastructures such as business centers, public hospitals and airports. However, unfortunately, most of them are still unproductive lands, especially in the form of idle lands. One problem to use such unproductive awqaf lands is the lack of awqaf land model as the platform to use such awqaf lands. This paper aims to construct and propose a model called Sukuk-linked Awqaf (SLA) to use awqaf lands as an underlying for Sukuk issuance.
Design/methodology/approach
This paper constructs mechanisms and formulas of SLA by involving Sukuk issuer, awqaf management (Nadzhir), Sukuk investors and tenants of the infrastructure. In particular, the SLA model is proposed based on the unique characteristics of both awqaf asset and Ijarah (leasing) Sukuk, considers the intention of state-owned enterprise (SOE) to construct buildings to be rented to the tenant and to be owned by the awqaf manager and formulates equations and uses net present value theory to determine Nadzhir and Sukuk investors’ investment decisions.
Findings
Engaging awqaf land with SLA model can ease its benefit for the society. The model addresses the strategic roles of Nadzhir, SOE, investors and contractor in using awqaf land.
Research limitations/implications
The SLA model could ease related parties to use the awqaf land for the sake of public benefits.
Originality/value
To the best of the author’s knowledge, this is the first assessment on the potential implementation of Islamic hedging with a commodity as an alternative hedging in Indonesia.
Devrim Anil and Can Çoğun
The purpose of this paper is to produce electric discharge machining (EDM) electrodes by using stereolithography (SLA) rapid prototyping technique and investigate the machining…
Abstract
Purpose
The purpose of this paper is to produce electric discharge machining (EDM) electrodes by using stereolithography (SLA) rapid prototyping technique and investigate the machining performance of these electrodes. In the experimental part of the study, the performance of solid copper and copper‐coated SLA (cc/SLA) electrodes are observed and compared.
Design/methodology/approach
The performance outputs such as material removal rate, machining depth, workpiece surface roughness and electrode front surface wear are used as metrics of comparison. The temperature measurements taken from the face of both solid copper and cc/SLA electrodes indicated that the heat build up during machining significantly accelerated the failure of cc/SLA electrodes.
Findings
The paper finds that circulating the cooling liquid inside the internal cooling channels formed with SLA technique, elongated the life of cc/SLA electrodes by dissipating the heat from the coating.
Originality/value
The Fluent Computational Fluid Dynamics (CFD) Software is used to numerically analyze various aspects of cooling of cc/SLA electrodes. The key findings of the study are presented in this paper.
Details
Keywords
Yong Yin, Jian Zhou, Chaoyong Zhang and Dejun Chen
The purpose of this paper is to discuss an adaptive SLA mechanism for service sharing in virtual environment, which can organize and govern QoS items in terms of service execution…
Abstract
Purpose
The purpose of this paper is to discuss an adaptive SLA mechanism for service sharing in virtual environment, which can organize and govern QoS items in terms of service execution time, reliability, and availability, and provides a common understanding about services, responsibilities, priorities, guarantees and warranties-related virtual cooperative issues.
Design/methodology/approach
The management framework for SLA is introduced, based on which the whole process including SLA contract, adaptive SLA negotiation strategy, SLA deployment and SLA assessment are discussed, and the prototype is implemented in the cloud manufacturing platform.
Findings
A proposed SLA framework for service sharing in virtual environments is given; electronic contracts are designed in the framework for encapsulating measurable aspects of service level agreements so as to provide common understanding about the service; and an improved SLA negotiation strategy with three phases is presented for the dynamicity of the virtual services.
Originality/value
The paper presents a very useful adaptive SLA mechanism for service sharing in virtual environments that can be utilized in concurrent or future advanced manufacturing modes.
Details
Keywords
The purpose of this paper is to examine service level agreements (SLAs) in the retail industry and uses empirical data to draw conclusions on the relationships between SLA…
Abstract
Purpose
The purpose of this paper is to examine service level agreements (SLAs) in the retail industry and uses empirical data to draw conclusions on the relationships between SLA parameters and retailer financial performance.
Design/methodology/approach
Based on prior SLA theories, hypotheses about the impacts of SLA confidentiality, choice of chargeback mechanisms and chargeback penalty on retailer inventory turnover are tested.
Findings
Retailer inventory turnover could vary by the level of SLA confidentiality, and the variation of retailer inventory turnovers could be explained by chargeback penalty.
Research limitations/implications
The research findings may not be readily applicable to SLAs outside of the retail industry. Also, most conclusions were drawn from publicly available SLAs.
Practical implications
The significant relationships between SLA parameters and retailer inventory turnover imply that a retailer could improve its financial performance by leveraging its SLA design.
Originality/value
Not only does this study contribute to the understanding of retail SLA design in practice, but it also extends prior theories by investigating the implications of SLA design on the retailer inventory turnover.
Details
Keywords
James M. Matarazzo and Toby Pearlstein
The authors began this review of the research available on the topic of managing corporate libraries with the hypothesis that there has been a lack of funding for such research…
Abstract
The authors began this review of the research available on the topic of managing corporate libraries with the hypothesis that there has been a lack of funding for such research that in turn has limited its production. After reviewing the relevant research literature produced in the last three decades, however, the assumption of inadequate funding causing a lack of research on this topic could not totally be supported. As we sought to identify what funding was available, the literature suggested additional questions: How or if research on the subject of managing corporate libraries was encouraged and funded and by whom? What type of research would be most useful for corporate library managers? Finally, how research results were disseminated and whether the results had been put to use by practitioners? Here the authors are defining the topic of “managing libraries” in the broadest sense and occasionally delve more specifically into the topic of valuing library services. While we address corporate libraries in particular, most of our findings and commentary can be applied to special libraries in general.
Alok Kataria and David W. Rosen
Stereolithography apparatus (SLA) is capable of in situ fabrication of complex parts, as well as mechanisms and complex devices with embedded components. In this paper, a series…
Abstract
Stereolithography apparatus (SLA) is capable of in situ fabrication of complex parts, as well as mechanisms and complex devices with embedded components. In this paper, a series of example devices are presented to illustrate the power of building around embedded components (inserts). The problem formulation, solution approach, and specific rules and procedures are presented using these examples and experimental results. A case study approach is used for presentation. These procedures and results lend insight into promising new applications of SLA technology, as well as novel methods of implementing additional functionality into SLA and other rapid prototyping technologies.
Details
Keywords
To report on the SLA Annual Conference held in June 2006 in Baltimore MD.
Abstract
Purpose
To report on the SLA Annual Conference held in June 2006 in Baltimore MD.
Design/methodology/approach
Provides a review of some of the events of the conference.
Findings
The annual conference aims to provide attendees continuing professional education, vendor presentations, invited papers and social events. Exhibits from library vendors include technology, information materials and services.
Originality/value
A conference report of interest to information professionals in academia, corporate and governmental information centers and libraries.
Details
Keywords
Mask projection micro‐stereolithography (MPμSLA) is an additive manufacturing process capable for fabricating true three‐dimensional microparts and hence, holds promise as a…
Abstract
Purpose
Mask projection micro‐stereolithography (MPμSLA) is an additive manufacturing process capable for fabricating true three‐dimensional microparts and hence, holds promise as a potential 3D MEMS fabrication process. With only a few MPμSLA systems developed and studied so far, the research in this field is inchoate and experimental in nature. In order to employ the MPμSLA technology for microfabrication, it is necessary to model its part building process and formulate a process planning method to cure dimensionally accurate microparts. The purpose of this paper is to formulate a process planning method for curing dimensionally accurate layers.
Design/methodology/approach
A MPμSLA system is designed and assembled. The process of curing a single layer in resin using this system is modeled as the layer cure model. The layer cure model is validated by curing test layers. This model is used to formulate a process planning method to cure dimensionally accurate layers. The process planning method is tested by conducting a case study.
Findings
The layer cure model is found to be valid within 3 percent for most of the features and within 10 percent for very small features (<250μm). The paper shows that ray tracing can be effectively used to model the process of irradiation of the resin surface in a MPμSLA system.
Research limitations/implications
The process planning method is applicable only to those imaging systems, which are aberration limited as opposed to diffraction limited. The dimensional errors in the lateral dimensions of single layers cured by MPμSLA have been modeled, but not the vertical errors in 3D parts.
Originality/value
In this paper, a process planning method for MPμSLA has been presented for the first time.
Details
Keywords
The aim of this paper is to present the key areas of activity to be used for drafting service level agreements (SLAs) for electronic services and, at the same time, to present…
Abstract
Purpose
The aim of this paper is to present the key areas of activity to be used for drafting service level agreements (SLAs) for electronic services and, at the same time, to present best practices and problems that arise from the application of this discipline.
Design/methodology/approach
A range of recently published (2000‐2005) works has been reviewed, in order to: a) analyse how an SLA has to be defined and applied b) identify the applicable best practices and c) identify the problem areas.
Findings
Provides guidance for the business and the Application Service Provider (ASP) when they want to engage in an outsourcing agreement by presenting best practices and problems that occur from the application of SLAs.
Research limitations/implications
Suggests further research is needed in a number of research areas such as: development of semantic models for SLAs, development of flexible pricing models in relation with SLAs, definition of SLAs in cases of dynamic service creation, etc.
Practical implications
A useful source of information both for academia and the business.
Originality/value
Provides practical insight on a specialized topic and guidance to researchers.
Details
Keywords
Gaurav Jain, Deepali Singh and Shekhar Verma
Internet services are being deployed over an infrastructure that involves co‐operation between multiple organizations and systems. This has necessitated the need for standard…
Abstract
Internet services are being deployed over an infrastructure that involves co‐operation between multiple organizations and systems. This has necessitated the need for standard means to share the information between the service providers and their customers. This information essentially pertains to the service level obligations between the service provider and their customers so that the customers can ensure the quality of service (QoS) that they are able to achieve at their end. A service level agreement (SLA) essentially quantifies the level of service as it includes the metrics that define the quality of service. The research undertaken identifies the QoS dimensions, which are required to define the multimedia services. Each application used by the user will involve different values of the QoS dimensions in order to maintain an expected level of service. The QoS requirement for a particular application will also depend upon the provisioning of the network resources depending on the client and server side CPU and memory available for processing. The relationship between the system resources, QoS dimensions and the SLA has been depicted in the form of a general model of SLA and as an example taken for the video conferencing application.
Details