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Article
Publication date: 23 January 2020

Qianqian Zhang, Yezhuo Li, Yan-An Yao and Ruiming Li

The purpose of this paper is to propose a deformable two-wheel-like mobile mechanism based on overconstrained mechanism, with the abilities of fast rolling and obstacle…

Abstract

Purpose

The purpose of this paper is to propose a deformable two-wheel-like mobile mechanism based on overconstrained mechanism, with the abilities of fast rolling and obstacle surmounting. The drive torque of the multi-mode motions is generated by self-deformation. Moreover, the analyses of feasibility and locomotivity of two mobile modes are presented.

Design/methodology/approach

The main body of the two-wheel-like mobile mechanism is a kind of centrally driven 4 R linkages. The mobile mechanism can achieve the capabilities of fast rolling and obstacle surmounting through integrating two mobile modes (spherical-like rolling mode and polyhedral-like obstacle-surmounting mode) and can switch to the corresponding mode to move or surmount obstacles. The mobility and kinematics of the mobile modes are analyzed.

Findings

Based on the results of kinematics analysis and dynamics analysis of the wheel-like mechanism, the spherical-like rolling mode has the capability of fast rolling, and the polyhedral-like obstacle-surmounting mode has the capability of surmounting different obstacle heights by two submodes (quasi-static obstacle-surmounting submode and dynamic obstacle-surmounting submode). The proposed concept is verified by experiments on a physical prototype.

Originality/value

The work presented in this paper is a novel exploration to apply bar linkages in the field of scout. The two-wheel-like mobile mechanism improves the torque imbalance of bar linkages by centrally driven method, removes the rear support structures of the traditional two-wheeled mechanisms by self-deformation and increases the height of obstacle surmounting by mode switching angle.

Details

Industrial Robot: the international journal of robotics research and application, vol. 47 no. 3
Type: Research Article
ISSN: 0143-991X

Keywords

Article
Publication date: 1 April 2003

Georgios I. Zekos

Aim of the present monograph is the economic analysis of the role of MNEs regarding globalisation and digital economy and in parallel there is a reference and examination of some…

88455

Abstract

Aim of the present monograph is the economic analysis of the role of MNEs regarding globalisation and digital economy and in parallel there is a reference and examination of some legal aspects concerning MNEs, cyberspace and e‐commerce as the means of expression of the digital economy. The whole effort of the author is focused on the examination of various aspects of MNEs and their impact upon globalisation and vice versa and how and if we are moving towards a global digital economy.

Details

Managerial Law, vol. 45 no. 1/2
Type: Research Article
ISSN: 0309-0558

Keywords

Content available
Book part
Publication date: 30 July 2018

Abstract

Details

Marketing Management in Turkey
Type: Book
ISBN: 978-1-78714-558-0

Article
Publication date: 7 March 2016

Shainath Ramesh Kalamkar and Jadav Chandra Mandal

The purpose of this paper is to present two low diffusive convective-pressure flux split finite volume algorithms for solving incompressible flows in artificial compressibility…

323

Abstract

Purpose

The purpose of this paper is to present two low diffusive convective-pressure flux split finite volume algorithms for solving incompressible flows in artificial compressibility framework.

Design/methodology/approach

The present method follows the framework similar to advection upwind splitting method of Liou and Steffen for compressible flows which is used by Vierendeels et al. to solve incompressible flow equations. Instead of discretizing the total inviscid flux using upwind scheme, the inviscid flux is first split into convective and pressure parts, and then discretized the two parts differently. The convective part is discretized using upwind method and the pressure part using central differencing. Since the Vierendeels type scheme may not be able to capture the divergence free velocity field due to the presence of artificial dissipation term, a strategy to progressively withdraw the dissipation with time step is proposed here that can ascertain the divergence free velocity condition to the level of residual error. This approach helps in reducing the amount of numerical dissipation due to upwind discretization, which is evident from the numerical test examples.

Findings

Upwind treatment of only the convective part of the inviscid flux terms, instead of the whole inviscid flux term, leads to more accurate solutions even at relatively coarse grids, which is substantiated by numerical test examples.

Research limitations/implications

The method is presently applicable to Cartesian grid.

Originality/value

Although similar formulation is reported by Vierendeels et al., no detailed study of the accuracy is presented. Discretization and solution reconstructions used in the present approach differ from the approach reported by Vierendeels et al. A modification to Vierendeels type scheme is proposed that can help in achieving divergence free velocity condition. Finally the efficacy of the present approach to produce very accurate solutions even on coarse grids is successfully demonstrated using a few benchmark problems.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 26 no. 2
Type: Research Article
ISSN: 0961-5539

Keywords

Article
Publication date: 1 January 1976

The Howard Shuttering Contractors case throws considerable light on the importance which the tribunals attach to warnings before dismissing an employee. In this case the tribunal…

Abstract

The Howard Shuttering Contractors case throws considerable light on the importance which the tribunals attach to warnings before dismissing an employee. In this case the tribunal took great pains to interpret the intention of the parties to the different site agreements, and it came to the conclusion that the agreed procedure was not followed. One other matter, which must be particularly noted by employers, is that where a final warning is required, this final warning must be “a warning”, and not the actual dismissal. So that where, for example, three warnings are to be given, the third must be a “warning”. It is after the employee has misconducted himself thereafter that the employer may dismiss.

Details

Managerial Law, vol. 19 no. 1
Type: Research Article
ISSN: 0309-0558

Article
Publication date: 20 January 2020

Kate-Riin Kont

The purpose of this paper is to find out how much the purchasing and lending of individual electronic books really cost. Additionally, this paper investigates which kind of…

Abstract

Purpose

The purpose of this paper is to find out how much the purchasing and lending of individual electronic books really cost. Additionally, this paper investigates which kind of approach would be cheaper and less time-consuming for library staff as well as library patrons – purchase or short-term loan.

Design/methodology/approach

This study was conducted at the Tallinn University of Technology (TalTech) Library. This is the only university library in Estonia where the Ebook Central platform is adapted on a large scale. For background information, all statistical data of expenditures and average prices of purchases and short-term loans during April 2013 and December 2018 were calculated and analysed. Through a case study, the time-driven activity-based costing (TDABC) method was used – all activities related to acquisition and lending of eBooks were identified, recorded in detail and analysed. More specifically, the study concerned eBooks offered in the Ebook Central platform and covered purchasing and short-term loan processes, such as receipt of order request, communication with the patron (if necessary) making a purchase or short-term loan, and feedback to the patron.

Findings

While analysing the results, it appeared there are many additional activities libraries can avoid during the eBook short-term loan process compared to purchasing. As a normality in TalTech library, purchase is always followed by a cataloguing process which increases the time and cost of this process in turn. On the basis of the current study, it can be said that short-term loan is a cheaper way to use eBooks; many activities related to the short-term loan of eBooks take remarkably less staff time and financial resources than eBooks acquisition/purchasing activities. When analysing the literature reviewed as well as collected statistical data, the problem may arise when the decision-maker librarian is not experienced, professional or long-sighted enough to understand the future behaviour of the patron or the usage of the specific eBook. When the usage reaches a certain point, it becomes an indicator of continuing future usage and so it makes sense to purchase the eBook, as the library pays no further charges once an eBook is owned.

Originality/value

Most studies reviewed by the author are based on the statistical data collected about expenditure, costs, usage, cost-per-use, etc. of short-term loans and purchases. While acquisitions costs, average cost per acquired item per year and cost per usage are easy to identify, it has been difficult to measure associated costs of acquisition, cataloging and circulation. The TDABC methodology seems to be one of the best tools for understanding cost behaviour and refining a cost system for university libraries. Based on the information known to the author, there is no study carried out using the TDABC methodology for analysing costs of eBook programmes.

Article
Publication date: 1 June 2000

Jim Grieves

The history of Organizational Development (OD) reveals a much older tradition of organizational science than the conventional wisdom would suggest. By the 1960s and 1970s OD…

19862

Abstract

The history of Organizational Development (OD) reveals a much older tradition of organizational science than the conventional wisdom would suggest. By the 1960s and 1970s OD became self‐confident and dynamic. This period was not only highly experimental but established the principles of OD for much of the twentieth century. By the end of the twentieth century new images of OD had occurred and much of the earlier thinking had been transformed. This review illustrates some examples under a series of themes that have had a major impact on the discipline of OD and on the wider thinking of organizational theorists and researchers.

Details

Journal of Management Development, vol. 19 no. 5
Type: Research Article
ISSN: 0262-1711

Keywords

Abstract

Details

Responsible Investment Around the World: Finance after the Great Reset
Type: Book
ISBN: 978-1-80382-851-0

Article
Publication date: 12 July 2021

Mehtap Dursun, S. Sirin Fındık and Nazli Goker

In a rapidly changing environment, many health-care systems are forced to survive with rising costs and the need for proper resources utilization. To address the requirements for…

Abstract

Purpose

In a rapidly changing environment, many health-care systems are forced to survive with rising costs and the need for proper resources utilization. To address the requirements for effective strategic planning, business process reengineering (BPR) is inevitable for health-care systems. This study aims to focus on the reengineering of central sterilization unit’s business processes to obtain performance improvement and efficiency. With the obtained new process design, it is expected to get standardization in all level of the central sterilization unit.

Design/methodology/approach

This paper presents a BPR method for modeling the system in health-care sector to improve the productivity of the sterilization process of surgical equipment. The case study is conducted in a large hospital in Istanbul, Turkey. First, “as-is” process is modeled and the problems are determined. Then, solution methods are developed and the target system (to-be process) is redesigned and the workflows of each phase are remodeled by using ARIS tool. Enterprise resource planning (ERP)-driven BPR is used to reengineer the current processes and the future processes are operated through the modeled ERP system. Finally, by using a statistical analysis, performance of the new process is compared with the existing process using the first data obtained from the case hospital.

Findings

In many sterilization services, the control procedures are rarely used. Thus, an ERP solution is developed to automate sterilization tasks and track down the information flow. With the ERP solution, it is possible to track in which dates, where and by whom the items are processed. On the other hand, in the sterilization process, the sets are used efficiently according to the last sterile dates of the items. Also, with the ERP system, it is possible to reduce unnecessary paper usage and this gives the hospitals the opportunity to be more ecological and sustainable. As a result, a centralized sterilization process with an IT support provides efficiency, economy and patient safety.

Originality/value

This study seeks for the potential benefits of an ERP implementation in health-care sector. As a result of this project, improvements in productivity, cost and quality are expected in sterilization processes because the new process design will bring automation, human-related error reduction and equipment tracking system. For this purpose, a business process management software is developed and implemented to the central sterilization unit so that the information flows more safely and the managers can track the results quickly by charts and reports.

Details

Kybernetes, vol. 51 no. 2
Type: Research Article
ISSN: 0368-492X

Keywords

Book part
Publication date: 25 February 2016

Sharon Marya Cilia Tortell

The purpose of this chapter is to determine the future trends in the retail payment market in Malta, and the manner in which the major stakeholders are set to respond to the…

Abstract

Purpose

The purpose of this chapter is to determine the future trends in the retail payment market in Malta, and the manner in which the major stakeholders are set to respond to the potential that innovative technology within this area is unlocking. Stakeholders strive to keep abreast with developments within this ambit, in pursuit of implementing a proactive approach within their respective roles.

Methodology/approach

The objective of this study is achieved through a series of semi-structured interviews with the major stakeholders in the local retail payment market, mainly Financial Services Regulators, Supervisors and overseers as well as the Maltese Financial Services licence holders.

Findings

The evolution in the retail payment landscape witnessed in recent years exposes immeasurable challenges to Malta’s financial services sector and the economy at large. The conclusions derived from this research dovetail with the thorough literature review conducted, in exploring the manner in which such trends are envisaged to unfold within this sector. This study explores the legislative framework and regulatory regime, both current and proposed, which lay the foundations for the interplay between the respective stakeholders.

Originality/value

This study reveals the approach taken by the various stakeholders, as they each respond to such developments in the retail payment sphere. These are predominately driven by market forces endowed with a mix of opportunities, as each stakeholder strives to remain resilient towards future industry challenges. This research is conducive towards enhancing the much needed clarity and awareness in the local retail payment market, and promotes the use of innovative, secure and cost-efficient retail payment methods.

Details

Contemporary Issues in Bank Financial Management
Type: Book
ISBN: 978-1-78635-000-8

Keywords

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