2,545 research outputs found

    Temperature and heat flux measurements: Challenges for high temperature aerospace application

    Get PDF
    The measurement of high temperatures and the influence of heat transfer data is not strictly a problem of either the high temperatures involved or the level of the heating rates to be measured at those high temperatures. It is a problem of duration during which measurements are made and the nature of the materials in which the measurements are made. Thermal measurement techniques for each application must respect and work with the unique features of that application. Six challenges in the development of measurement technology are discussed: (1) to capture the character and localized peak values within highly nonuniform heating regions; (2) to manage large volumes of thermal instrumentation in order to efficiently derive critical information; (3) to accommodate thermal sensors into practical flight structures; (4) to broaden the capabilities of thermal survey techniques to replace discrete gages in flight and on the ground; (5) to provide supporting instrumentation conduits which connect the measurement points to the thermally controlled data acquisition system; and (6) to develop a class of 'vehicle tending' thermal sensors to assure the integrity of flight vehicles in an efficient manner

    Indicators for managing human centred manufacturing

    Get PDF
    Establishing indicators for managing human factors (HF) aspects in the design of production systems remains a challenge. We address the problem in two dimensions – firstly, what aspects of HF are to be considered, and secondly, where in the development process HF is to be measured. In these dimensions a large number of HF metrics are possible in the perceptual, cognitive, physical and psychosocial domains of HF. The relevance of these measures to injury, productivity, quality and organizational strategy continue to be poorly understood. From this perspective we make propositions on the need for: 1) strategic HF metrics selection, 2) metrics application throughout the development process, 3) predictive ‘virtual’ HF metrics approaches, 4) metrics based design guidelines, 5) connecting metrics with design choices and strategies, 6) integrating HF metrics within existing approaches, 7) continuous improvement of the metrics system, and 8) the need to evaluate metrics system quality

    Management-Employee Buyouts in Hungary and Poland

    Get PDF
    This paper is part of a project whic began in December 1994 and consists of research focusing on legal and institutional aspects of privatization as well as the courses and outcomes of privatization processes under way in the countries of Central and Eastern Europe. The specific issue this paper focuses on is management-employee buyouts in Hungary and Poland.management-employee buyouts, transition, Poland, Hungary

    The New Era of Administrative Regularization: Controlling Prosecutorial Discretion through the Administrative Procedure Act

    Get PDF
    Beginning in 1969, the United States Attorney for the District of Columbia began developing and installing, with the help of management consultants, a computerized record keeping process that came to be known as the Prosecutor\u27s Management Information System, or PROMIS. I Unlike other federal prosecutors, the U. S. Attorney in the District of Columbia is responsible for prosecuting felonies under local law and shares many of the problems of court backlog and scarcity of resources familiar to local prosecutors in other large cities. PROMIS is a computer data bank in which six kinds of information are collected and correlated with each other for every criminal case litigated by the U. S. Attorney\u27s office. The computer will report information about the defendant (such as aliases, prior arrests and convictions, age, race, sex, and employment status), the crime (such as the amount of violence and property damage, the number of persons accused of working with the defendant, and the date and place of the incident), the arrest (such as the type of arrest and the names of the arresting officers), the offense or offenses charged (such as the charges at arrest, the charges actually placed after initial screening by a prosecutor, and the reasons for any changes), the witnesses (such as name, address, evidentiary value, and assessment of whether there will be problems getting a given witness to testify), and the court history of the case (such as the date and substance of every court event from arraignment to sentencing, the cause of each event, and the names of the prosecutor, defense attorney, and judge involved at each stage). Information about the defendant and the offense of which he is accused is computed through formulae that produce a case priority rating which allows the office to single out certain cases for special attention and provides the basis for detailed supervision, through guidelines, of each Assistant U. S. Attorney\u27s discretion. While PROMIS was being developed, and in conjunction with it, the U. S. Attorney\u27s office put many of its guidelines in the form of a Papering and Screening Manual for its Superior Court Division and Guidelines for First Offender Treatment. Neither the existence nor the contents of these documents was disclosed to the public

    Legislation\u27s Culture

    Get PDF
    American statutes can seem like labyrinthine mazes when compared to some countries’ legislation. French codes are admired for their intellectual elegance and clarity. Novelists and poets (Stendhal, Valéry) have considered the Code civil to be literature. Swedish legislation might be based on empirical research into problems the legislation is intended to remedy, and the drafting style, though modern today, is descended from an oral tradition of poetic narrative. Comparing these legislative cultures with our own reveals that the main problem with American legislation is not too many words. It is too many ideas — a high ratio of concepts per legislative goal. When American, French, and Swedish legislatures address similar problems, the French and Swedes draft using far fewer concepts than Americans do. In both countries, simple solutions are preferred over convoluted ones. The drafters of the Code civil thought the highest intellectual and legislative accomplishment to be simplicity. The Swedes got to approximately the same place through a cultural value that law be understandable to the public. Where the American legislative process can seem chaotic, there has been some respect for Cartesian rationality in France and for empirical evidence in Sweden. Even if American statutes were to be translated into ordinary English, they would still be labyrinths because our legislatures insist on addressing every conceivable detail that legislators can imagine. The result is excessively conceptualized legislation, imposing large numbers of duties. Statutory concepts cost money. They create issues, which must be decided by publicly funded courts and agencies with additional costs to the parties involved. Every unnecessary statutory concept wastes social and economic resources. And to the extent law seems incomprehensible to the public, it loses moral authority
    • …
    corecore