Expressing Permission

This paper proposes a semantics for free choice permission that explains both the non-classical behavior of modals and disjunction in sentences used to grant permission, and their classical behavior under negation. It also explains why permissions can expire when new information comes in and why free choice arises even when modals scope under disjunction. On the proposed approach, deontic modals update preference orderings, and connectives operate on these updates rather than propositions. The success of this approach stems from its capacity to capture the difference between expressing the preferences that give rise to permissions and conveying propositions about those preferences

Book Review: After O\u27Connor: Stories from Contemporary Georgia

Review of the book After O\u27Connor: Stories from Contemporary Georgia, edited by Hugh Ruppersburg. Athens, GA: University of Georgia Press, 2003

Article 3: Commercial Paper

Montana Law and the Uniform Commercial Code: Article 3: Commercial Pape

Conditional Sales and Chattel Mortgages

The contract of conditional sale and the chattel mortgage perform a similar economic function. They are the principal devices by which the obligor may enjoy the use and possession of a chattel in winch a security interest is held by another. Either may serve to secure the payment to the vendor of the purchase money, while m Washington the chattel mortgage only may be employed to secure the repayment of a loan or the performance of other obligations. They arose out of different legal concepts, developed along different lines, gave rise to different rights and remedies, but in the form of the two Uniform Acts have achieved a striking similarity. It is the object of this article to relate the history of these security instruments in the State of Washington, to show the legal consequences of a choice between them, to point out a few of the changes which would result from the adoption of either Uniform Act in this State, and finally to offer for discussion suggestions for a Composite Act covering the entire field of security in personal property

Analysis of Slewing and Attitude Determination Requirements for CTEx

This thesis examines the slewing and attitude determination requirements for the Chromotomographic Experiment (CTEX), a chromotomographic-based hyperspectral imager, to be mounted on-board the Japanese Experiment Module (JEM) External Facility (EF). The in-track slewing requirement is driven by the facts that CTEx has a very small field of view (FOV) and is required to collect 10 seconds of data for any given collection window. The need to slew in the cross-track direction is a product of the small FOV and target/calibration site access. CTEx incorporates a two-axis slow-steering dwell mirror with a range of ± 8 degrees and an accuracy of 10 arcseconds in each axis to slew the FOV. The inherent inaccuracy in the knowledge of the International Space Station\u27s (ISS) attitude (± 3 degrees) poses significant complications in accurately pointing CTEx even with more accurate (0.3 degrees) attitude information provided by the JEM. The desire is for CTEx to incorporate a star tracker with 1 arcsecond accuracy to determine attitude without reliance on outside sources

Paper Session III-A - Advanced Development of Ground Instrumentation as a Key Strategy in Improving the Safety and Efficiency of Space Shuttle Checkout and Launch

This paper describes some of the advanced technology instruments produced by the Instrumentation Development Laboratories at Kennedy Space Center. These systems contribute to the realization of the goals of “better, faster, cheaper” set by the NASA Administrator and provide a steady stream of inventions which benefit the commercial marketplace through NASA’s Commercialization and Dual Use Programs. The paper discusses advanced sensors and systems developed in the technical disciplines of cryogenic and toxic gas detection, leak location, hydrogen flame detection, data acquisition, navigation and positioning, payload contamination monitoring, non-destructive inspection, and the specific contributions made to improve safety and efficiency of the Space Shuttle checkout and launch process. These technologies are government programs or for technology transfer to the commercial sector

Paper Session III-A - Commercialization of KSC Instrumentation Developed to Improve Safety, Reliability, and Cost Effectiveness of Space Shuttle Processing, Launch, and Landing

The top priority at Kennedy Space Center (KSC) is safety of the flight crew and Shuttle vehicle. This priority is followed by safety of the personnel and physical assets of KSC, and reducing the costs associated with processing the Shuttle and other flight components, driven by budget and down sizing pressures. The KSC Instrumentation Laboratories, managed and staffed by both civil service NASA personnel and by I-NET, the Engineering Support Contractor, help ensure the accomplishment of these priorities by adapting or developing technologies to improve operational safety and decrease processing costs. The Laboratories are organized by technical discipline into nine laboratory teams, each being generally self contained with highly skilled scientists, engineers, and technicians providing the skills necessary to conceive, develop and test innovative technical solutions. The laboratories are the Hazardous Gas Detection Laboratory specializing in the detection of cryogenic propellants using mass spectrometer-based instruments; the Toxic Vapor Detection Laboratory providing very low level detection capabilities for highly toxic hypergolic propellants and other chemicals; the Landing Aids Laboratory which develops navigation and positioning systems to calibrate Shuttle landing guidance systems; the Optical Instrumentation Laboratory specializing in development of low cost optical and ultrasonic instruments; the Transducer Development Laboratory which provides sustaining engineering for the KSC inventory of process measurements; the Contamination Monitoring Laboratory which develops and tests clean room monitoring systems; the Special Instrumentation Laboratory and Special Development Laboratory which each develop and support instruments for non-destructive inspection; and the Data Acquisition Systems Laboratory which provides and develops data acquisition, analysis and recording systems for special tests and permanent installations. These laboratories support all functional areas of KSC and each other in accomplishing a wide range of projects which are improving the techniques involved in processing and testing the flight systems to ensure that the Shuttle remains the prime human space flight system well into the next century