Annular rocket motor and nozzle configuration Patent

High thrust annular liquid propellant rocket engine and exhaust nozzle desig

Annular supersonic decelerator or drogue Patent

Bluff-shaped annular configuration for supersonic decelerator for reentry vehicle

Safety management of a complex R&D ground operating system

Report discusses safety program implementation for large R&D operating system. Analytical techniques are defined and suggested as tools for identifying potential hazards and determining means to effectively control or eliminate hazards

Thrust and direction control apparatus Patent

Thrust and attitude control apparatus using jet nozzle in movable canard surface or fin configuratio

Safety management of a complex R and D ground operating system

A perspective on safety program management was developed for a complex R&D operating system, such as the NASA-Lewis Research Center. Using a systems approach, hazardous operations are subjected to third-party reviews by designated-area safety committees and are maintained under safety permit controls. To insure personnel alertness, emergency containment forces and employees are trained in dry-run emergency simulation exercises. The keys to real safety effectiveness are top management support and visibility of residual risks

Injection of clarity needed?

The legal status of children who stay in hospital for three months or longer gives rise to considerable confusion among managers in social services and social work departments. And the number of young people affected is significant. NHS statistics for the year ending 31 March 2000 suggest that in England around 2,800 children aged 0-19 on admission were discharged after spending more than two months in hospital, as were more than 500 children in Scotland. (A small number of these would have been discharged as adults.) A two-year study, commissioned by the Joseph Rowntree Foundation1 and carried out by the universities of Stirling, Durham, Newcastle and York, investigated the numbers, characteristics and circumstances of children and young people with complex needs who spend long periods in health care settings. Interviews were conducted in England and Scotland with 11 social services or health managers responsible for these children. The findings show a worrying degree of uncertainty about the position of young people who find themselves in a hospital or other health care setting for at least three months. One social services manager believed such children become looked after under the terms of the Children Act 1989. Another said children are not formally looked after but nevertheless receive the same services and safeguards as those who are. One Scottish social work manager did not know whether children going into health care settings for short-term (respite) care are looked after or not. And discussion with the research team's advisory group indicated that the confusion is not confined to our fieldwork areas

The aerospace technology laboratory (a perspective, then and now)

The physical changes that have taken place in aerospace facilities since the Wright brothers' accomplishment 78 years ago are highlighted. For illustrative purposes some of the technical facilities and operations of the NASA Lewis Research Center are described. These simulation facilities were designed to support research and technology studies in aerospace propulsion

Updating predictive accident models of modern rural single carriageway A-roads

Reliable predictive accident models (PAMs) are essential to design and maintain safe road networks and yet the models most commonly used in the UK were derived using data collected 20 to 30 years ago. Given that the national personal injury accident total fell by some 30% in the last 25 years, while road traffic increased by over 60%, significant errors in scheme appraisal and evaluation based on the models currently in use seem inevitable. In this paper the temporal transferability of PAMs for modern rural single carriageway A-roads is investigated and their predictive performance is evaluated against a recent data set. Despite the age of these models, the PAMs for predicting the total accidents provide a remarkably good fit to recent data and these are more accurate than models where accidents are disaggregated by type. The performance of the models can be improved by calibrating them against recent data

Symposium: Pandemics and the Constitution: Federalism and Contagion: Reevaluating the Role of the CDC

The United States Government’s response to the coronavirus outbreak raises difficult questions of federalism. This essay argues for greater federal leadership and involvement to mount the most effective response to a pandemic. As history shows, a response led by local governments is vulnerable to collective action problems and political impediments. An improved response structure in a contagious disease event would include more federal leadership and policy dictated by the Centers for Disease Control (CDC), to be then effectuated by state and local governments. This power can be exercised either formally, through federal grants, or informally through the influence of public locally-focused CDC recommendations. Second, this essay argues for greater federal influence over public health measures such as quarantine and isolation for a more uniform national response. As the law now exists, federal authority over everything but international border quarantines is somewhat ambiguous. State and local governments have exercised quarantine authority inconsistently, and may not possess the institutional knowledge to weigh the costs and benefits of confinement actions. Inevitably during a severe pandemic, localities may also push the limits of their authority to quarantine, potentially in opposition to federal government policy, hindering a nationwide pandemic response. Implicit in this recommendation is a call for greater statutory authorization for the CDC. Finally, the potential constitutional questions that arise from the suggested policy alterations are considered. Government officials are always in a challenging position when responding to a pandemic. This challenge is magnified when federal authority over the matter is unclear. The United States system of public health federalism must be rebalanced in some areas, to gain an effective uniform response to an outbreak of disease