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Implementation Models (implementation + models)

Distribution by Scientific Domains
Business, Economics, Finance and Accounting66%
Engineering33%

Selected Abstracts

A real-time computer-controlled simulator: For control systems

COMPUTER APPLICATIONS IN ENGINEERING EDUCATION, Issue 2 2008
I. H. Altas
Abstract A real-time simulator to accompany automatic control system courses is introduced. The design and realization methods and processes are discussed. The simulator is basically a computer-controlled system that implements the developed user friendly virtual interface software to control the speed of a small size DC motor. The virtual interface includes digital implementation models of classical proportional, integral, derivative, and all combinations of them as well as a fuzzy logic controller. The user is able to select and adjust the parameters of any desired controller that is defined and represented virtually. © 2008 Wiley Periodicals, Inc. Comput Appl Eng Educ 16: 115,126, 2008; Published online in Wiley InterScience (www.interscience.wiley.com); DOI 10.1002/cae.20130 [source]

A-scalability and an integrated computational technology and framework for non-linear structural dynamics.

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING, Issue 15 2003
Part 1: Theoretical developments, parallel formulations
Abstract For large-scale problems and large processor counts, the accuracy and efficiency with reduced solution times and attaining optimal parallel scalability of the entire transient duration of the simulation for general non-linear structural dynamics problems poses many computational challenges. For transient analysis, explicit time operators readily inherit algorithmic scalability and consequently enable parallel scalability. However, the key issues concerning parallel simulations via implicit time operators within the framework and encompassing the class of linear multistep methods include the totality of the following considerations to foster the proposed notion of A-scalability: (a) selection of robust scalable optimal time discretized operators that foster stabilized non-linear dynamic implicit computations both in terms of convergence and the number of non-linear iterations for completion of large-scale analysis of the highly non-linear dynamic responses, (b) selecting an appropriate scalable spatial domain decomposition method for solving the resulting linearized system of equations during the implicit phase of the non-linear computations, (c) scalable implementation models and solver technology for the interface and coarse problems for attaining parallel scalability of the computations, and (d) scalable parallel graph partitioning techniques. These latter issues related to parallel implicit formulations are of interest and focus in this paper. The former involving parallel explicit formulations are also a natural subset of the present framework and have been addressed previously in Reference 1 (Advances in Engineering Software 2000; 31: 639,647). In the present context, of the key issues, although a particular aspect or a solver as related to the spatial domain decomposition may be designed to be numerically scalable, the totality of the aforementioned issues simultaneously play an important and integral role to attain A-scalability of the parallel formulations for the entire transient duration of the simulation and is desirable for transient problems. As such, the theoretical developments of the parallel formulations are first detailed in Part 1 of this paper, and the subsequent practical applications and performance results of general non-linear structural dynamics problems are described in Part 2 of this paper to foster the proposed notion of A-scalability. Copyright © 2003 John Wiley & Sons, Ltd. [source]

Barriers to implementing e-learning: a Kuwaiti case study

INTERNATIONAL JOURNAL OF TRAINING AND DEVELOPMENT, Issue 1 2008
Ghadah Essa Ali
The paper reports on a research project that encompasses two key objectives: (1) finding out about the barriers affecting or preventing e-learning from being adopted by companies as an integral part of their workforce's training and learning processes and (2) establishing a comparison between the barriers and the e-learning implementation models found in Kuwait and in the practice of Western companies. The practices from Western countries are used as a benchmark for the Kuwaiti experience. The collection of the primary data was carried out through the use of semi-structured questionnaires with human resources managers as well as IT managers in charge of the e-learning of 11 of the largest companies in Kuwait. The research results show that the key implementation barriers in Kuwait are (1) lack of management support; (2) language barriers; (3) IT problems; and (4) workload and lack of time. From these, two are common to Western countries (technology and time). The remaining two (management support and language barriers) are specific to Kuwait. Regarding the comparison between the two implementation models, the key finding was that the usual e-learning development cycle (plan,design,integrate,improve) was not followed in Kuwait. The planning, designing and improving stages were largely ignored, with the emphasis resting almost completely on integrating the e-learning tools and processes in the rest of the organization. This finding was found to be in line with barrier number one , lack of management support. The key lesson learned from this research is that the problem of e-learning implementation in Kuwait is not so much one of knowing what the barriers are but one of knowing what the appropriate management processes should be for companies to achieve business success. The paper also provides recommendations for an e-learning development plan to fit the current business environment in Kuwait. [source]

Implementing Quality Improvement Strategies in Brazilian Hospitals: A Model for Guidance of the Initial Stage of Implementation

INTERNATIONAL TRANSACTIONS IN OPERATIONAL RESEARCH, Issue 1 2002
T. Diana.
Since the early 1990s, Brazilian hospitals have increasingly adopted quality improvement strategies with a view to attending more demanding customers and to the higher performance standards required by the Ministry of Health. However, most efforts have not been successful, partly because hospitals lack adequate methodologies, namely implementation models. This paper presents a two-stage model to help Brazilian hospitals deploy such strategies more effectively. It focusses on the development and pilot-test of the model for the buy-in stage. Distinctive features of the model were found to be critical for results at this stage: 1) An ad hoc structure to manage the changes involved; 2) A performance measurement system to lever and monitor its implementation, while aligning the actions taken with strategy objectives. Other aspects found to be crucial for success were creative application of model elements to the culture of the hospital and to Brazilian contingencies. [source]

Big Windows and Little Windows: Implementation in the ,Congested State'

PUBLIC ADMINISTRATION, Issue 2 2004
Mark Exworthy
This paper argues for the need to re-assess models of policy implementation in the ,congested state'. This re-appraisal focuses on two main directions. The first involves locating implementation in the context of wider models of the policy process. We fuse three models, those of Kingdon, Wolman, and Challis et al., to form a new ,policy streams' approach. The second examines implementation in multi-level governance. In the UK and elsewhere, much of the focus of traditional implementation studies has been on the link between one central government department and a local agency. However, this vertical (central-local) dimension fails to give sufficient stress to the other horizontal dimensions of ,central-central' and ,local-local'. Paraphrasing Kingdon's terms, implementation models also need to incorporate the ,little windows' at local level as well as the ,big' windows at national level. Using evidence relating to the implementation of UK policy towards health inequalities, this paper argues successful implementation is more likely when the three policy streams are linked across the three dimensions. The model is thought to be applicable to other areas of the public sectors and complex issues facing all governments. [source]