3,603 research outputs found

    A Parallel Processor System for Nuclear Shell-Model Calculations

    Get PDF
    This thesis describes the design and implementation of a dedicated parallel processor system for nuclear shell-model calculations. The purpose of these calculations is to determine nuclear energy eigenvalues by the tridiagonalisation of the nuclear Hamiltonian matrix using the Lanczos method. The Theoretical Nuclear Structure group at Glasgow University's Physics Department would normally perform this type of calculation on a high-performance main-frame computer. However these machines have limitations which restrict the number and scope of the calculations that can be performed. The Shell Model Processor system consists of a Multiple Microprocessor Unit (MMPU) driven by a highly pipelined dedicated front-end processor. The MMPU has a modular, moderately coupled, MIMD architecture based on autonomous processing modules. The elements within the system communicate via three shared buses. The front-end is responsible for determining the position of non-zero elements within the Hamiltonian matrix. Once the position of an element has been found it is passed to one of the free processing modules within the MMPU. The processing module then determines the value of the matrix element and performs the appropriate arithmetic to accumulate the resultant Lanczos vector. Two such processing modules have been developed. The most recently developed module is based on two MC68000 16/32 bit microprocessors. In addition there are two supervisory processor modules, one of which controls the front-end and also assists it in its function. The other module has privileged system capabilities and is responsible for supervising the system as a whole. The system has been successfully tested and performance figures are presented. The future expansion of the system to allow it to perform larger calculations is also discussed

    Qcompiler: quantum compilation with CSD method

    Full text link
    In this paper, we present a general quantum computation compiler, which maps any given quantum algorithm to a quantum circuit consisting a sequential set of elementary quantum logic gates based on recursive cosine-sine decomposition. The resulting quantum circuit diagram is provided by directly linking the package output written in LaTex to Qcircuit.tex . We illustrate the use of the Qcompiler package through various examples with full details of the derived quantum circuits. Besides its generality and simplicity, Qcompiler produces quantum circuits which reflect the symmetry of the systems under study

    Protecting the Past: A Comparative Study of the Antiquities Laws in the Mid-South

    Get PDF
    Governmental efforts to protect antiquities can be found in the early twentieth century; however, the most significant policy efforts began in the late 1960s and early 1970s. This manuscript focuses on the properties/items protected under current statutes in Arkansas, Louisiana, and Texas and provides background on major federal policies. Moreover, it addresses the penalties imposed for violating these regulations. The efforts made to enforce these rules are also addressed along with suggestions for improving implementation of antiquities policies in all three states

    Pay Increases Subsequent to FMLA Leave: The Role of Organizational Justice

    Get PDF
    Research indicates the importance of studying organizational justice and its impact. Further, research has indicated a relationship between perceptions of organizational justice and pay increase decisions. However, the present research is the first to incorporate the Family and Medical Leave Act (FMLA) leave into the equation. In short, this research addressed whether an employee\u27s absence for FMLA-covered reasons impacts the perceived justice of subsequent pay increases for that employee. Specifically, it was hypothesized that the employee\u27s length of absence, tenure, performance, and/or pay increase would impact justice perceptions. Participants evaluated vignettes manipulating these factors, then rated the fairness of pay increase decisions. Results revealed that the employee\u27s performance interacted with the amount of pay increase to account for the largest amount of variance injustice perceptions. However, a main effect for pay increase, an interaction between performance and the length of the employee\u27s leave, and an interaction between performance, tenure, the length of the employee\u27s leave, and the pay increase decision were observed. Finally, among employees who received a full pay increase, performance was the strongest predictor of justice perceptions

    Recent Decisions

    Get PDF
    Recent Decisions Act of State Doctrine--Act of State Doctrine precludes Judicial Inquiry into the Motivation underlying the Acts of a Foreign State in a Private Antitrust Suit Ronald P. Cima Preemption--State Statute Prohibiting Nonresidents or Aliens from Fishing in its Waters is Preempted by Federal Law Douglas Berry Warsaw Convention--Provision for Limiting Liability--Recoveries in Personal Injury Actions against Air Carrier Employees, as Well as Against the Air Carrier itself, are to be Limited by the Warsaw Convention Jon L. Goodma

    Implementation of Raman spectroscopy at manufacturing scale: Overcoming modeling challenges while implementing advanced process control

    Get PDF
    In order to improve glycation control in our new high intensity platform process, we investigated implementation of Raman spectroscopy to monitor and control glucose at low levels throughout the process. Using Raman allows a way to measure glucose near real time which in turn allows for a more responsive and flexible control algorithm. Prior literature has shown connections between elevated glucose levels and glycation when in presence of high protein concentrations, which was indicative of our process. Using Raman along with advanced process control (APC), allowed us the flexibility to reduce glycation back towards historical process levels. We will share a case study of how Raman models were built using the RXN2-785 system and later deemed unresponsive due to high levels of fluorescence on day 5 of a 14 day process. We will discuss potential sources of the fluorescence and provide a multi-product comparison for perspective. Additional development effort was required in tight time frame to derive a manufacturing ready solution to this challenging problem. We will describe what that solution was and how we were able to successfully create new models with errors acceptable within our process control strategy design. Lastly, we will demonstrate how controlling glucose at lower levels during the process impacted glycation. Our work ended with two engineering runs at 17,000L scale where we used Raman spectroscopy to successfully monitor and control glucose at a lower set point and effectively lower glycation by 40% of its original value

    State Regulation of Franchising: The Washington Experience Revisited

    Get PDF
    Thirty-six years ago, and one year after Washington became the second state in the nation to enact a statute regulating franchise relationships, Professor Donald S. Chisum wrote the seminal article on franchising in Washington, State Regulation of Franchising: The Washington Experience. Professor Chisum\u27s article has been one of the few reference sources for Washington franchise law, and it has been the primary source relied on by courts addressing claims under Washington\u27s Franchise Investment Protection Act (FIPA). Since Professor Chisum originally published his article, the Federal Trade Commission (FTC) has promulgated and amended regulations governing the sale of franchises nationally, and two different groups have drafted uniform franchise acts. In Washington, the legislature significantly amended FIPA in 1991, and courts have addressed some of the unresolved issues under the statute. This Article assesses the changed state of franchise law in Washington. Part II considers the economic impact of franchising and the need for a review of franchising in Washington. Part III reviews the historical foundation for Washington\u27s current franchise laws, the context in which they were created, and the changes to franchise law that drive our modem understanding of FIPA today. Part IV addresses the current regulatory scheme in Washington, including practical considerations such as franchise registration, disclosure, and state enforcement powers. Finally, Part V addresses civil liability for violations of FIPA\u27s registration, disclosure, and relationship provisions

    Family Preservation Services under Managed Care: Current Practices and Future Directions

    Get PDF
    Family preservation service agencies in the State of Kansas have undergone major changes since the implementation of a managed care model of service delivery in 1996. This qualitative study examines the successes and barriers experienced by agency directors in utilization of a managed care system. Outcome/ performance measures utilized by the State of Kansas are reviewed, and contributing factors to the successes and limitations of the program are discussed. Included in these reviews is an analysis and presentation of literature and research which has been used as support for the current program structure. Recommendations for further evolution of practice are proposed
    • …