IT Configuration Research Articles

Comparative Biomechanical Study of Screw Fixation Techniques in Periacetabular Osteotomy

Periacetabular osteotomy (PAO) is a common surgical treatment for developmental dysplasia of the hip. To obtain the optimal method of fixation during PAO, different screw fixation techniques have been proposed for stabilizing the acetabular fragment. This study assesses the biomechanical performance of two popular 3-screw fixation techniques: iliac (IS) and transverse (IT) configurations, through finite element simulations. Additionally, different 2-screw combinations are simulated to investigate the biomechanical significance of each screw of the fixation configurations. The study findings show that yield load of the pelvic bone subject to gait loading for IT configuration is on average 7% higher compared to that of the IS. Although the yield load of the IT is predicted to be slightly higher, no significant difference in bone stiffness and displacement of the acetabular fragment are found between two configurations. Simulation results, therefore, do not demonstrate a significant biomechanical advantage of the IT configuration over the IS. Furthermore, the biomechanical comparison between the 2-screw combinations of IS and IT fixations demonstrates that the most anterior screw in IS, located at the iliac crest, and the most medial screw in the IT are the most critical elements in providing sufficient stability and support for acetabular fragment.

The Measurement of Optimization Performance of Managed Service Division with ITIL Framework using Statistical Process Control

The purpose of the Configuration Management process is carrying and all IT assets, status, configuration, and relationship between each other being well documented. This documentation is useful, among others, for some purposes. The first objective is to create clarity in the relationship between key performance indicators (KPI) an IT services with the infrastructure. Changes to the configuration of those devices would obviously very disturbing the performance of IT services. The second objective is the accuracy of the information which will be used by the Service Delivery processes. So a Service Desk staff who need to get information about how a user at a branch office to connect to the network's headquarters, linked to issues of access to certain applications. Accurate network configuration information will be helpful Service Desk staff in helping the user solve the problem. The third objective is the accuracy of the information will be used for the IT audit.PT. XYZ is a telecommunications company which relatively new and aware of the increasing competitive competition in the telecommunications industry. PT. XYZ was starting its operation in 2006. The company's ambition is to develop progressively by increasing operational performance which closely linkages between operational performance improvements company with a bottom line of the company. Thus, it is a necessity / obligation for companies in the global era of integrated telecommunications services, to focus on Quality of services (QoS) provided to its customers, in order to survive in an increasingly competitive telecommunications business.

Optimization Performance Measurement of Managed Service Division in ITIL Framework Using Statistical Process Control

The purpose of the Configuration Management process is carrying and all IT assets, status, configuration, and relationship between each other being well documented. This documentation is useful, among others, for some purposes. The first objective is to create clarity in the relationship between key performance indicators (KPI) an IT services with the infrastructure. Changes to the configuration of those devices would obviously very disturbing the performance of IT services. The second objective is the accuracy of the information which will be used by the Service Delivery processes. So a Service Desk staff who need to get information about how a user at a branch office to connect to the network's headquarters, linked to issues of access to certain applications.

Don't Install Software by Hand

An IT system's setup and configuration affects developers mainly due to the proliferation and complexity of Internet-facing systems. Fortunately, we can control and conquer this complexity by adopting IT-system configuration management tools. By stipulating that all modifications to a system's configuration can only be performed through its configuration management system and by treating the system's rules as code, an organization ensures that the IT systems it delivers to its clients are not inscrutable monoliths that just happen to work but documented modular engines that work by design.

Mining Face-to-Face Interaction Networks using Sociometric Badges: Predicting Productivity in an IT Configuration Task

Social network theories (e.g. Granovetter 1973, Burt 1992) and information richness theory (Daft & Lengel 1987) have both been used independently to understand knowledge transfer in information intensive work settings. Social network theories explain how network structures covary with the diffusion and distribution of information, but largely ignore characteristics of the communication channels (or media) through which information and knowledge are transferred. Information richness theory on the other hand focuses explicitly on the communication channel requirements for different types of knowledge transfer but ignores the population level topology through which information is transferred in a network. This paper aims to bridge these two sets of theories to understand what types of social structures are most conducive to transferring knowledge and improving work performance in face-to-face communication networks. Using a novel set of data collection tools, techniques and methodologies, we were able to record precise data on the face-to-face interaction networks, tonal conversational variation and physical proximity of a group of IT configuration specialists over a one month period while they conducted their work. Linking these data to detailed performance and productivity metrics, we find four main results. First, the face-to-face communication networks of productive workers display very different topological structures compared to those discovered for email networks in previous research. In face-to-face networks, network cohesion is positively correlated with higher worker productivity, while the opposite is true in email communication. Second, network cohesion in face-to-face networks is associated with even higher work performance when executing complex tasks. This result suggests that network cohesion may complement information-rich communication media for transferring the complex or tacit knowledge needed to complete complex tasks. Third, the most effective network structures for latent social networks (those that characterize the network of available communication partners) differ from in-task social networks (those that characterize the network of communication partners that are actualized during the execution of a particular task). Finally, the effect of cohesion is much stronger in face-to-face networks than in physical proximity networks, demonstrating that information flows in actual conversations (rather than mere physical proximity) are driving our results. Our work bridges two influential bodies of research in order to contrast face-to-face network structure with network structure in electronic communication. We also contribute a novel set of tools and techniques for discovering and recording precise face-to-face interaction data in real world work settings.

Challenges in Developing a Knowledge Management Strategy

It is widely acknowledged that knowledge management (KM) strategy is a desired precursor to developing specific KM initiatives. Strategy development is often difficult due a variety of influences and constraints. Using KM influences as a foundation, this case study describes issues involved in developing a KM strategy for the Air Force Material Command, including issues to be considered for future strategy development such as leadership support and understanding, conflicts with IT organizations, funding, technology usage and configuration, and outsourcing.

The Circuit Properties of the Ideal Varactor Parametric Converter†

ABSTRACT An accepted nodal analysis of the ideal varactor parametric converter in its IT configuration is used as the basis for a comprehensive study of its circuit properties. The object is to elucidate the nature and action of the converter in terms of conventional network-theoretic concepts and to clarify the difference between the non-inverting and inverting modes of operation. By Hormitian/anti-Hermitian partition of the admittance matrix and by chain factorization of the transfer (A, B, C, D) matrix, the equivalent network is separated into active/passive, reciprocal/non-reciprocal and time-variant/invariant parts. For representation of the time-variant property a now element called an ideal frequency converter is defined. One type of circuit derived is a generalization to the active time-variant ease of a passive non-reciprocal network proposed for use in microwave circuits by Haus.