Lightweight community-driven approach to support ontology

The challenge for businesses today is to operate efficiently and effectively by ensuring the availability of updated information necessary for business activities. At situations where daily operations require collaborative communication among staff working in dispersed locations - characterised by different time zones and working conditions - it is essential that the staff have and share common knowledge, especially since staff members may have diverse understandings and perceptions of an issue.In order to overcome such challenge in business, using the oil and gas industry as a case study, this research proposes a platform based on a Lightweight Community-driven approach whereby staff are presented with opportunities to raise and discuss a particular issue in a systematic manner. In addition, ontology is used to support the representation of domain knowledge in which evolution is expected as human knowledge is not static. The fundamental principle of the Lightweight Community-driven approach is to involve organisation personnel in an exchange of ideas and opinions that lead to a higher quality of output. Staff are categorised in two groups, the Contributor Group and the Admin Group, each of which has a different role and responsibility in the whole process of communication. Members of the Contributor Group are those who are actively participating in the discussion by raising issues, providing feedback, and voting on an issue. This group is responsible for the quality of the discussion result which includes reliability of the ontology. The Admin Group are tasked with the managerial aspects of discussion to ensure the eligibility of every participant.Ontology evolution, subsequently, takes place to incorporate the result of the discussion. When there is a need to revise the intended ontology, the current ontology will be improved and archived ontology is created. Otherwise, ontology will remain the same as it is considered relevant by employees of the oil and gas industry. The proposed platform is explained and validated in detail in this thesis. The outcomes of the collective efforts to improve the quality of information within the domain are: a decrease of day-to-day work, cost saving, increased productivity and the availability of a communication forum

Medical health knowledge management using wireless network: Moroccan hospitals case study

Hospitals and medical health services are large business that we have to make them successful for their earned profits and incomes. Unifying the communication in hospitals can approve the environments and avoid the problems faced. Wireless networks are very useful in large crowded places like hospitals. Wireless technology has empowered the medical health systems by reducing the paperwork that nurses or doctors have to deal with them whole day. Its primary purpose is to ensure effective care of patients by increasing the accuracy and speed of health care. This paper highlights patients' knowledge management in hospitals using the wireless communication since the rate of medical errors has increased lately. The intention of this paper is to utilize an advanced technology to help hospitals raise the rate of care of patients throughout the use of mobile data collection device that transmits data to a centralized database to raise the visibility of data to the receivers

Modelling and simulation of fuel cell/photovoltaic hybrid power system

Due to an ever increasing demand for power consumption and a rising public awareness of the impact on the environment, renewable energy based on Hybrid Power Systems (HPS) (e.g. fuel cell, wind or solar) to supply electricity has attracted a growing research interest. Photovoltaic (PV) power generation systems are among the most promising renewable energy technology solutions. Fuel Cell (FC), on the other hand, is emission-free and quieter than hydrocarbon fuel-powered engines. It saves fuel and is cleaner for the environment. Such systems can generate electricity from clean sources to power loads located in inaccessible or remote areas. The aim of this thesis is to investigate the potential for utilising an FC/PV hybrid power system to provide power for a water pump, which supply an elevated water tank (6,500 litres/day consumption) to a small community located in a remote area. The HPS consists of a photovoltaic solar panel, a 1.2 KW Nexa Proton Exchange Membrane Fuel Cell (PEMFC), a Lead acid battery bank, a bidirectional DC/DC converter, one directional DC/DC converter and a water pump. The thesis will commence with a literature review, giving an overview of energy demand and future trend, describing the different HPS configurations and giving some examples of similar projects carried out by other researchers and organisations. A system component description is also covered. The thesis will then move on to describing the HPS simulation model development using Matlab/Simulink simulation environment, concluding with the test cases used to validate the model based on the 1.2 KW Nexa PEMFC and PV panels. In the case study, the system utilizes photovoltaic (PV) as the primary power generator, PEMFC as the secondary back-up power generator and a battery bank (to store any excess power) as power storage device. The advantage of the proposed system is that, in addition to being environmentally friendly, it also has lower maintenance costs, noise and carbon footprint. Two main scenarios were explored to validate the hybrid system performance, at two different geographical and environmental conditions. The first case is based in Saudi Arabia, where it is hot and sunny for most of the year. This scenario permits higher utilization of the power generated from the PV cells and reduces the dependence on power produced by the fuel cell. The second case scenario is based in the UK, where it is cold and cloudy for most of the year. The Sunlight here is at minimum, leading to higher dependence on the fuel cells for the system operation

Community-driven ontology evolution based on lightweight social networking in oil and gas domain

Ontology evolution is one of the problems facing ontology users today. One of the problems is that making changes to one concept of ontology might affect other concepts, thereby leading to inconsistencies. Moreover, this creates a lot of work for ontology engineers who have to update the ontology manually. The process of changing the ontology requires work from the domain experts. No cost effective communication method exists that enables discussion and agreement on these changes. In this paper, we propose to use a lightweight Social Networking approach in order to enhance the communication between different participants. This will produce a more efficient and effective method of communication and decision-making

Nurses' perception of job empowerment and its relation to organizational commitment

This study is conducted & submitted In Partial Fulfillment Of Requirements For The Master's Degree In Department of Administration And Education, College Of Nursing, King Saud University, Riyadh, Kingdom of Saudi Arabia, 1427-1728H / 2006-2007GNursing is increasingly broad in scope and encompasses an ever widening range of work behaviours and role responsibilities. However, they work within a climate of uncertainty and disempowerment along with high organizational demands placing them under considerable stress (1,2). This condition threatens both physical and emotional wellbeing of nurses and the profession it self and may results to low nurses' commitment which in turn may contribute to disengagement or withdrawal of nurses from their organizations (3,4). Consequently, threatens organizational functioning and the quality care. However, the nurses low commitment is being a problematic in many countries, Aiken et al (2001)(6) have cautioned that the health care workforce faces the serious risk of losing one in five registered nurse for reasons other than retirement. Supportively, several studies revealed that the turnover rate for hospital registered nurse is among the highest rates found for professional and technical occupational groups (7,8). While, the Joint Commission on Accreditation of Health Care Organizations (JCAHO) recorded that current annual registered nurse turnover rates range from 18% to 26% (9).Victorian Governmental Department of Human Services Research suggests that at low levels of job satisfaction and organizational commitment, retention of nursing staff is difficult and absenteeism increases

Towards Social Network based Approach for Software Engineering Ontology Sharing and Evolution

In this paper, we present a multi-agent social network approach that integrates the software engineering ontology and expert recommendation facilities for communities of software engineers remotely working on related software engineering projects. The software engineering ontology enables an active ecology of agents to convey, consume and act on project information (semi) autonomously, according to explicit software engineering domain knowledge. Recommendation techniques are addressed to make progress ? ability to recommend useful project information, solution(s) for project issues that arise as experts