As projects play a key role in implementing strategy, organizations of all kinds implement projects. Further, as the importance of the projects grow, management of the same also becomes crucial in terms of monitoring and controlling. However, as non-project based organizations lack distinctive project management approach, their project are controlled and monitored by the inherent management control system. While, several studies have highlighted that different organization control mechanisms are exercised at varying degree, there is a dearth of study done in project context. However, one recent study done by Nieminen and Lehtonen (2008) in a program context focusing only in organizational change revealed three organizational control mechanisms and 23 control tools being exercised as varying degree in four case programs. As several studies in the project management context highlight the need to tailor the approach according to the project types, this study focuses on understanding how the control mechanisms vary across different types of projects executed by non-project based organizations employing the project classification developed by Turner and Cochrane (1993). A qualitative study employing semi-structured interview was conducted with eight project managers of respective projects implemented by seven companies from China and Nepal. Based on the feedback given by the concerned project managers, the study revealed distinct organizational control mechanisms dominated distinct project types in rolling out a successful project, even though there was presence of all types of organizational control mechanisms in the sampled projects. Further, the application of the control tools within the control mechanism varied even across projects of similar type.

<p>Many-core processors offer new levels of on-chip performance by capitalizing on the increasing rate of device integration. Harnessing the full performance potential of these processors requires that hardware designers not only exploit the advantages, but also consider the problems introduced by the new architectures. Such challenges arise from both the processor's increased structural complexity and the reliability issues of the silicon substrate. In this thesis, we address these challenges in a framework that targets correct execution and performance on three coordinates: 1) tolerating permanent faults, 2) facilitating static and dynamic verification through precise specifications, and 3) designing scalable coherence protocols.</p> <p>First, we propose CCA, a new design paradigm for increasing the processor's lifetime performance in the presence of permanent faults in cores. CCA chips rely on a reconfiguration mechanism that allows cores to replace faulty components with fault-free structures borrowed from neighboring cores. In contrast with existing solutions for handling hard faults that simply shut down cores, CCA aims to maximize the utilization of defect-free resources and increase the availability of on-chip cores. We implement three-core and four-core CCA chips and demonstrate that they offer a cumulative lifetime performance improvement of up to 65% for industry-representative utilization periods. In addition, we show that CCA benefits systems that employ modular redundancy to guarantee correct execution by increasing their availability.</p> <p>Second, we target the correctness of the address translation system. Current processors often exhibit design bugs in their translation systems, and we believe one cause for these faults is a lack of precise specifications describing the interactions between address translation and the rest of the memory system, especially memory consistency. We address this aspect by introducing a framework for specifying translation-aware consistency models. As part of this framework, we identify the critical role played by address translation in supporting correct memory consistency implementations. Consequently, we propose a set of invariants that characterizes address translation. Based on these invariants, we develop DVAT, a dynamic verification mechanism for address translation. We demonstrate that DVAT is efficient in detecting translation-related faults, including several that mimic design bugs reported in processor errata. By checking the correctness of the address translation system, DVAT supports dynamic verification of translation-aware memory consistency.</p> <p>Finally, we address the scalability of translation coherence protocols. Current software-based solutions for maintaining translation coherence adversely impact performance and do not scale. We propose UNITD, a hardware coherence protocol that supports scalable performance and architectural decoupling. UNITD integrates translation coherence within the regular cache coherence protocol, such that TLBs participate in the cache coherence protocol similar to instruction or data caches. We evaluate snooping and directory UNITD coherence protocols on processors with up to 16 cores and demonstrate that UNITD reduces the performance penalty of translation coherence to almost zero.</p> / Dissertation

Sliding mode controllers (SMC) with time delay and a rotor position observer are designed for the sensorless speed control of permanent magnet synchronous motor (PMSM) are proposed in this paper. Based on field-oriented principle, a flux SMC is designed to achieve quick flux control. And then a speed SMC with time delay is presented and compared with PI controller in the direct torque control framework. The effectiveness of the proposed control scheme under the load disturbance and parameter uncertainties is verified by simulation results.

The purpose of this study is to understand the satisfaction of the resident who live in the Da Ai Village about the permanent supportive house and their living environment. The subjects are: 1.The satisfaction of the environment quality of their ¡@ ¡@neighborhood. 2.To understand the demand of the resident about the ¡@environmental improvement. 3.To analyze the satisfaction and their demand to their ¡@ neighborhood and further offer the strategy and ¡@ ¡@suggestion to improve. This study investigated the resident aged over 20 who lived in Da Ai Village. Purposive Sampling method was applied in the survey. Total 400 questionnaires were released in 731 household. 395 valid ones were returned. After compile and analyze the data, we obtained the results as follow: 1.For the living environment quality, there are five structures: the interior environment of the house, the exterior environment of the house, culture and entertainment, public utility, and safety management. The average of the overall satisfaction is 83.54%. (1)For interior environment of the house: the most satisfied: the number of the room; the most unsatisfied: the privacy. (2)For exterior environment of the house: the air quality; the most unsatisfied: the landscape image of the neighborhood. (3)For the culture and entertainment: the most satisfied: parks; the most unsatisfied: religion center. (4)For the public utility: the most satisfied: fire facilities; the most unsatisfied: social affairs service. (5)For the safety management: the most satisfied: community friendship; the most unsatisfied: security and order. 2.The priority of the improvement needs in safety, convenient, comfortable, health caring and religion are: (1)For safety: Surveillance video recording. (2)For convenient: Bus station. (3)For comfortable: Sound insulation. (4)For health caring: Children day care. (5)For religion: Portal image. In order to urge the government to speed up the improvement progress of the Da Ai Village after Morokot Typhoon, this study offer suggestions as follow: 1.Establish good coordination and integration system. 2.Setting specific examine procedure in order to clarify the right and obligation. 3.To respect multi-culture and to consider the resident¡¦s actual needs. 4.To explain and communicate the improvement procedure and detail of the village

This thesis presented a sensor-less permanent magnet synchronous motor (PMSM) driver for controlling air-conditioner rotary compressor speed. In this thesis, a quasi-sine pulse-width modulation (PWM) driving method was proposed. Furthermore, the current feedback control scheme and rotor magnet pole position detection were included. The system structure was implemented by using a digital signal processing (DSP) platform. The proposed driving scheme was compared with the square-wave driving without current feedback and six-step square-wave driving method with current feedback. Moreover, the passive and shunt semi-active power factor correction (PFC) technique were researched for the air-conditioner application. Experimental results demonstrated that the system power factor could be improved by the proposed shunt semi-active PFC method. Besides, the proposed sensor-less quasi-sine PWM driving method implemented in an air-conditioner compressor driver was capable of reducing the magnitude of rotational speed ripples, compressor vibration, and system power consumption.

The Electron Energy Corporation (EEC) along with the National Aeronautics and Space Administration (NASA) is researching magnetic bearings. The purpose of this research was to design and develop a high-temperature (1000�F) magnetic bearing system using High Temperature Permanent Magnets (HTPM), developed by the EEC. The entire system consisted of two radial bearings, one thrust bearing, one motor and 2 sets of catcher bearings. This high temperature magnetic bearing system will be used in high performance, high speed and high temperature applications like space vehicles, jet engines and deep sea equipment. The bearing system had a target design to carry a load equal to 500 lb-f (2225N). Another objective was to design and build a test rig fixture to measure the load capacity of the designed high temperature radial magnetic bearing (HTRMB) called Radial Bearing Force Test Rig (RBFTR). A novel feature of this high temperature magnetic bearing is its homopolar construction which incorporates state of the art high temperature, 1000 �F, permanent magnets. A second feature is its fault tolerance capability which provides the desired control forces even if half the coils have failed. The permanent magnet bias of the radial magnetic bearing reduces the amount of current required for magnetic bearing operation. This reduces the power loss due to the coil current resistance and also increases the system efficiency because magnetic field of the HTPM is used to take up the major portion of the static load on the bearing. The bias flux of the homopolar radial bearing is produced by the EEC HTPM to reduce the related ohmic losses of an electromagnetic circuit significantly. An experimental procedure was developed using the Radial Bearing Force Test Rig (RBTFR) to measure actual load capacity of the designed bearing at the test rig. All the results obtained from the experiment were compiled and analyzed to determine the relation between bearing force, applied current and temperature.

A high temperature magnetic bearing system using high temperature permanent magnets from Electron Energy Corporation (EEC) is under development. The system consists of two radial bearings, one thrust bearing, two radial catcher bearings and one motor. The purpose of this research is to develop one of the critical components of the system, namely, the High Temperature Permanent Magnet motor. A novel High Temperature Permanent Magnet (HTPM) Brushless DC(BLDC) motor capable of operating at 1000 degrees F (538 degrees C) is designed. HTPMs developed at Electron Energy Corporation are buried into the rotor. The high temperature motor is designed to produce 5.1kw of power at a top running speed of 20000 rpm. The numerical values of the motor voltage, power and torque output are predicted from calculations of the nonlinear finite element model of the motor. The motor stator is wound, potted, cured and high potential tested at 1000 degrees F. A servo amplifier from Advanced Motion Control is used to drive the high temperature motor. High temperature displacement sensors are set up for sensing the rotor position to form a closed loop motion control. However, the noise problem of the high temperature sensors causes a failure of this approach. An open loop approach is then developed and this approach succeeds in spinning the rotor with the capability of self-starting. The status of the full system assembling is introduced. Some other components of the system are briefly presented.

Over the past several years, some of the platforms in the Gulf of Mexico have been damaged completely, such that conventional P&A operations may not be possible. In these cases, plugging fluid needs to be pumped through an intervention well and dropped several thousand feet in water to settle above a packer and seal the well. The current P&A material of choice is cement, but cement is miscible in water, which dilutes and contaminates the cement. Therefore, alternate plugging materials need to be used for these operations. This paper discusses the development of a cost-effective Epoxy P&A method and the challenges of using Epoxy. First, the impact of seawater, oil, and pipe dope on the curing process remains unknown. Secondly, the yield strength of Epoxy with and without the contaminating chemicals must be equal to or better than cement. Finally, previous tests have shown significant losses of Epoxy to the walls of the wellbore during the 7,000-ft drop. 2 High temperature curing and compression tests were performed on contaminated epoxy samples to determine the effectiveness of the epoxy plug. To reduce material losses, an improved method for introducing the epoxy into the target zone was developed. This method takes advantage of a narrow window in the cure process where the curing process can be suspended by quenching the partially cured liquid epoxy in water at room temperature, thereby changing the liquid epoxy into solid beads. The beads can then be pumped into the wellbore, where they liquefy at wellbore temperature, 200°F, then cure into a solid plug. Seawater was found to accelerate the cure time, while all contaminants tested reduced the fracture strength by more than 25% compared to pure resin. The yield strengths of contaminant mixtures, however, remained relatively constant, with the greatest drop being only 11%. The use of solid epoxy beads was found to have a compressive strength 50% greater than Portland cements I&II. In addition, the application mentioned herein eliminates the need to prepare the plug material on site. These advantages greatly contribute to reducing the costs of an epoxy P&A operation, to potentially being USD 0.7 million cheaper than a Portland cement operation.

This thesis provides a detailed field analysis of a specially designed axial-flow radial-flux permanent magnet motor for cooling fan applications. By implementing an iron strip segment at the stator base, this motor can provide a stable guidance force in its axial direction, such that the operational vibration effects can be minimized and the undesired forces applied onto associated bearing system can be alleviated. Supported by adaptive magnetic equivalent circuit and three-dimensional finite element analyses, the motor operational fluxes and forces can be analyzed. Results show that excellent performance and enhanced reliability objectives can all be achieved.

In this thesis, we examine labor market outcomes for the youth (ages 15-29) using microdata from several rounds of the Turkish Household Labor Force Survey (HLFS). We begin by examining demographic trends. We then rely on synthetic cohorts. The fact that the HLFS sample frame targets the civilian non-institutional population brings about difficulties in interpreting labor market indicators. We show that a more reasonable picture of schooling and work choices emerges when a simple correction for &lsquo / missing males&rsquo / who are doing their CMS and examine the effect of Compulsory Military Service (CMS) on the transition from school to work by using discrete hazard models. We also investigate the time it takes to find the first permanent job to shed light on the recent evolution of the transition from school to work.Using Cox Proportional Hazard Model, we examine the effects of structural reforms and macro-economic conditions, and the permanence of these effects. We are able to study the differences in the hazard of obtaining the first permanent job by education levels non-parametrically. Finally, we investigate the changes in the cumulative baseline hazards over time and test for the presence of gender differences in the hazard rates by using time varying covariates. With the help of these covariates, we are able to compute the time needed for the closure of the gender gap.