Zugl.: Kassel, University, Diss., 2009.

The programming languages have always been a useful tool for sustainability and continuity of advancements in multilayered fields as like education and common industries. PHP is a widespread instrument which has an important place in this practices just like many other programming languages. This research is conducted to understand PHP language better and to increase academical familiarity about it. In the end of this practice a basic PHP library for further use has been produced as a representation of the research which has been conducted. This library allows the user to create multivariate basic graphs for visualization of variable different data and it’s hoped that it will be used by further educational and business purposes by various individuals.

International Telemetering Conference Proceedings / October 21, 2002 / Town & Country Hotel and Conference Center, San Diego, California / Advances in several related technologies have brought together the previously incompatible goals of incorporating as much COTS technology as possible into the telemetry data recording architecture, providing operators with the kinds of real-time graphical data displays that they are accustomed to, and allowing these same data display systems to share data across a network and write to common database files accessible from centralized workstations.

International Telemetering Conference Proceedings / October 23-26, 2000 / Town & Country Hotel and Conference Center, San Diego, California / The strip-chart recorder has evolved from a simple pen-writing instrument to an instrumentation platform. Today's Telemetry Recording Workstations not only provide a permanent hard copy of telemetry data, but also offer high resolution videographic displays with real-time point-of-writing representation, the ability to efficiently store data digitally, and customizable user interfaces. Host control and digital data transfer can be achieved using Ethernet networks, making the instrument an integral part of a telemetry system. The Telemetry Recording Workstation is a fundamental instrument for any telemetry application or installation, due to its abilities to display, print and store real-time data.

A total of 840 fish species names (belonging to 143 families) were gathered from the Taiwan coastal area-economic geographical database. [http://fishdb.sinica.edu. tw/ 2001new/main1.asp] The near-shore area of Taiwan were divided into eight areas for studies of geographical distribution and biodiversity pattern. Biological data for individual species was gathered from ICLARM (Fishbase) including trophic level and VBGF growth parameters. The temporal and spatial difference between different areas were studied using traditional statistical methods and S-P chart analysis. The results show that Eastern area has higher trophic level , asymptotic length (L¡Û) , maturity length (Lm) , age at maturity (Tm) and Maximum age (Tmax) than the West. Also the Eastern has relatively lower food items on plant , M value and K values. Presence and absence of fish species were organized and presented into the so-called S-P chart for demonstrating the interaction between species or family diversity and habit. Results on family level show that the West has greatest species richness (96 families) in contrast to the North-West and South-East (69 families).A total of 29 families distributed at all areas, whereas fishes belonging to the other 22 families can only be found on one single area. Results on species level show that the West has greatest species richness (538 species) in contrast to the North-West (207 species).Result from the S-P chart also serves for statistical testing in identifying the significance difference on species-habit interactions among different area of fish populations. Cluster analysis show that North-East , East and South-East can be grouped into one group. The other individual groups were North-West , West , South-West , North and South.

Multivariate control charts are valuable tools for multivariate statistical process control (MSPC) used to monitor industrial processes and to detect abnormal process behavior. It has been shown in the literature that Bayesian control charts are optimal tools to control the process compared with the non-Bayesian charts. To use any control chart, three control chart parameters must be specified, namely the sample size, the sampling interval and the control limit. Traditionally, control chart design is based on its statistical performance. Recently, industrial practitioners and academic researchers have increasingly recognized the cost benefits obtained by applying the economically designed control charts to quality control, equipment condition monitoring, and maintenance decision-making. The primary objective of this research is to design multivariate Bayesian control charts (MVBCH) both for quality control and conditional-based maintenance (CBM) applications. Although considerable research has been done to develop MSPC tools under the assumption that the observations are independent, little attention has been given to the development of MSPC tools for monitoring multivariate autocorrelated processes. In this research, we compare the performance of the squared predication error (SPE) chart using a vector autoregressive moving average with exogenous variables (VARMAX) model and a partial least squares (PLS) model for a multivariate autocorrelated process. The study shows that the use of SPE control charts based on the VARMAX model allows rapid detection of process disturbances while reducing false alarms. Next, the economic and economic-statistical design of a MVBCH for quality control considering the control limit policy proved to be optimal by Makis(2007) is developed. The computational results illustrate that the MVBCH performs considerably better than the MEWMA chart, especially for smaller mean shifts. Sensitivity analyses further explore the impact of the misspecified out-of-control mean on the actual average cost. Finally, design of a MVBCH for CBM applications is considered using the same control limit policy structure and including an observable failure state. Optimization models for the economic and economic statistical design of the MVBCH for a 3 state CBM model are developed and comparison results show that the MVBCH performs better than recently developed CBM Chi-square chart.

Multivariate control charts are valuable tools for multivariate statistical process control (MSPC) used to monitor industrial processes and to detect abnormal process behavior. It has been shown in the literature that Bayesian control charts are optimal tools to control the process compared with the non-Bayesian charts. To use any control chart, three control chart parameters must be specified, namely the sample size, the sampling interval and the control limit. Traditionally, control chart design is based on its statistical performance. Recently, industrial practitioners and academic researchers have increasingly recognized the cost benefits obtained by applying the economically designed control charts to quality control, equipment condition monitoring, and maintenance decision-making. The primary objective of this research is to design multivariate Bayesian control charts (MVBCH) both for quality control and conditional-based maintenance (CBM) applications. Although considerable research has been done to develop MSPC tools under the assumption that the observations are independent, little attention has been given to the development of MSPC tools for monitoring multivariate autocorrelated processes. In this research, we compare the performance of the squared predication error (SPE) chart using a vector autoregressive moving average with exogenous variables (VARMAX) model and a partial least squares (PLS) model for a multivariate autocorrelated process. The study shows that the use of SPE control charts based on the VARMAX model allows rapid detection of process disturbances while reducing false alarms. Next, the economic and economic-statistical design of a MVBCH for quality control considering the control limit policy proved to be optimal by Makis(2007) is developed. The computational results illustrate that the MVBCH performs considerably better than the MEWMA chart, especially for smaller mean shifts. Sensitivity analyses further explore the impact of the misspecified out-of-control mean on the actual average cost. Finally, design of a MVBCH for CBM applications is considered using the same control limit policy structure and including an observable failure state. Optimization models for the economic and economic statistical design of the MVBCH for a 3 state CBM model are developed and comparison results show that the MVBCH performs better than recently developed CBM Chi-square chart.

Mathematica 8 introduces a free-form language input as the new method of calculation. Enter everyday English - no syntax, you can get results. It is a new entry point of the mma workflow, including the world's most advanced statistical computing power and the most advanced image processing. In this paper, we investigate the applications of Mathematica 8.0 in probability and statistics including dynamic module, descriptive statistics and data visualization, probability distribution and hypothesis testing. Moreover, we provide related examples by retrieving the data of built-in system or textbooks.

In this thesis, we design a robust concatenated code for the Multiple-Input Multiple-Output (MIMO) system in the presence of slow Rayleigh fading with no channel side information at the transmitter (no CSIT) and perfect channel side information at the receiver (perfect CSIR). Since we are interested in the slow fading channel, outage capacity is used as the measure of performance. Good space-time codes can be designed so as to maximize the so-called rank and the determinant criteria. However, a practical system will concatenate a space-time code with an outer code at the transmitter and perform iterative decoding at the receiver. It is necessary to design the space-time code together with the outer code in practice. We will call this kind of code a concatenated space-time code. At the transmitter, we will consider the bit-to-symbol mapping and space-time code together as a space-time modulator and thus, Bit Interleaved Coded Modulation (BICM) and Multilevel coding (ML) can be applied to design outer codes for the nonbinary constellation. However, the concatenated space-time codes designed by these two methods can only be decoded with arbitrarily small error probability for a fixed channel realization and such designs are not robust over the ensemble of fading channels. Our approach of designing concatenated space-time code is to design an outer code for a space-time modulator such that the concatenated space-time code can be decoded with arbitrarily small error probability in a set of fixed channels which have the same capacity. Through this approach, we discovered a new design criterion for spacetime codes: a good space-time code should stabilize its Extrinsic Information Transfer (EXIT) charts. In other words, the robustness of a space-time code in the slow fading channel and its performance in iterative decoding can be visualized by the EXIT charts. The rank and the determinant criterion do not evaluate the performance of a space-time code in iterative decoding, but the new criterion does. Therefore, the new criterion is applicable to design concatenated space-time codes. Applying our approach and new criterion, a rate 7.2 bits/s/Hz concatenated space-time code is designed. The performance is close to the outage capacity, and the rate lost is 0.2 bits/s/Hz.

This research is taking a comprehensive view to discuss the case of one leading IT company for its organizational structure change that has spanned for nearly five years. Using narrative analysis, the research¡¦s thorough discussion covers facets of the organizational structure change. The critical findings of the thesis are as follows: 1.Because the goal of an organizational structure change is to accommodate the organization¡¦s new mission statement, the new CEO is thinking of starting an organizational structure change in order to place staff with the right skills in the right jobs, clarify lines of authority and eliminate duplicate functions. 2.The new CEO¡¦s background and familiarity with the organization will affect the organizational structure change¡¦s scope and activities. 3.An organizational structure change is itself unable to reveal the change status. However, owing to its extraneous characteristics, the CEO is apt to declare his authority by building a new organizational structure and quickly formulating a plan to implement it.