Low-Erosion Nozzle Materials for Long-Duration Hybrid Rocket Burns

Hybrid rocket systems, which employ a solid fuel grain and a liquid oxidizer, are a low-cost and environmentally friendly alternative to traditional rocket systems. However, hybrid rockets suffer from an increased nozzle throat erosion rate, which impacts motor performance and reliability. To address this issue several materials and low-erosion nozzle configurations were tested. The results of the testing campaign produced a nozzle that reduce the throat erosion rate five-fold

The Relative Importance of Physical Versus Service Attributes with Respect to Small Business Vendor Selection

Recent literature on the topic of vendor selection has focused on a broad, macro view of the relationship between the selection and buying processes (see e.g., Dempsey, 1978; Holt, 1981). However, most of the studies have not examined such processes in the context of the small business enterprise nor have they discriminated between the importance of physical versus service attributes. A recent study by Manzer, Ireland, and Van Auken (1981) did employ the small business in a matrix approach to vendor selection. However, there appears to be a paucity of research involving the relative importance of physical versus service attributes by small businesses in their vendor selection

The Importance Of Culture Change And Change Management In Successful Implementation Of Sap Enterprise Resource Planning Systems

Enterprise Resource Planning (ERP) has enabled organizations to connect vendors, the organization, and customers in an almost seamless manner with real-time accurate communication and information. In an increasingly competitive environment, businesses are looking for ways to become more competitive within their marketplace. Many are turning to ERP solutions to facilitate multiple competitive priorities to stand above competing businesses or to create a new competitive advantage. Critical success factors and change management are the primary vehicles for the achievement of success in the adoption of these systems. This research studies how change management becomes a significant link to successful ERP implementation

An Ontological Approach to XBRL Financial Statement Reporting

As a standard for the exchange, transmission, and reporting of accounting and financial data, XRBL goes a long way towardstandardization. However, as the extent of contemporary financial markets is now global, XBRL reporting must transcend oraccommodate differences in reporting standards. While XBRL has been of great help in standardizing the presentation of theU.S. GAAP and IASB standards, reconciling meaning between these standards is still a manual and error-prone affair. As awide variety of stakeholders, spanning countries and cultures, will likely take part in digesting XBRL-formatted financialreports; how will they participate at an appropriate level that is meaningful for them? This paper focuses on an ontologicalapproach towards solving this problem by offering an XBRL ontology architecture for translation between XBRL formats.The architecture is explained, evaluation criteria offered, and future research towards realizing artifacts which use thisarchitecture are proffered