Ordinary kriging for on-demand average wind interpolation of in-situ wind sensor data

We have developed a domain agnostic ordinary kriging algorithm accessible via a standards-based service-oriented architecture for sensor networks. We exploit the Open Geospatial Consortium (OGC) Sensor Web Enablement (SWE) standards. We need on-demand interpolation maps so runtime performance is a major priority.Our sensor data comes from wind in-situ observation stations in an area approximately 200km by 125km. We provide on-demand average wind interpolation maps. These spatial estimates can then be compared with the results of other estimation models in order to identify spurious results that sometimes occur in wind estimation.Our processing is based on ordinary kriging with automated variogram model selection (AVMS). This procedure can smooth time point wind measurements to obtain average wind by using a variogram model that reflects the wind phenomenon characteristics. Kriging is enabled for wind direction estimation by a simple but effective solution to the problem of estimating periodic variables, based on vector rotation and stochastic simulation.In cases where for the region of interest all wind directions span 180 degrees, we rotate them so they lie between 90 and 270 degrees and apply ordinary kriging with AVMS directly to the meteorological angle. Else, we transform the meteorological angle to Cartesian space, apply ordinary kriging with AVMS and use simulation to transform the kriging estimates back to meteorological angle.Tests run on a 50 by 50 grid using standard hardware takes about 5 minutes to execute backward transformation with a sample size of 100,000. This is acceptable for our on-demand processing service requirements

Fixed-base simulator investigation of lightweight vehicles for lunar escape to orbit with kinesthetic attitude control and simplified manual guidance

Piloted simulator investigation of lightweight vehicles for emergency lunar escape to orbit with kinesthetic attitude control and simplified manual guidanc

End-to-End QoS Support for a Medical Grid Service Infrastructure

Quality of Service support is an important prerequisite for the adoption of Grid technologies for medical applications. The GEMSS Grid infrastructure addressed this issue by offering end-to-end QoS in the form of explicit timeliness guarantees for compute-intensive medical simulation services. Within GEMSS, parallel applications installed on clusters or other HPC hardware may be exposed as QoS-aware Grid services for which clients may dynamically negotiate QoS constraints with respect to response time and price using Service Level Agreements. The GEMSS infrastructure and middleware is based on standard Web services technology and relies on a reservation based approach to QoS coupled with application specific performance models. In this paper we present an overview of the GEMSS infrastructure, describe the available QoS and security mechanisms, and demonstrate the effectiveness of our methods with a Grid-enabled medical imaging service

A system for aerodynamic design and analysis of supersonic aircraft. Part 3: Computer program description

The computer program documentation for the design and analysis of supersonic configurations is presented. Schematics and block diagrams of the major program structure, together with subroutine descriptions for each module are included

Power Failure: How the Texas Probate Code Leaves a Gap in the Ability to Preserve Estates After Death

Upon a person’s death in Texas, the decedent’s heirs and beneficiaries are left without the legal power to preserve the separate probate estate. Although the Texas Probate Code provides for a temporary administration in the case of an immediate need to preserve an estate, the application and court process are not correspondingly responsive. This Comment focuses on the “gap” left behind by the Texas Probate Code and the statutory inadequacies that come to light in the face of current practical problems. Additionally, this Comment proposes amendments to the statute and describes an interim solution for practitioners with the goal of each to close this “gap” in order to better preserve decedents’ estates

Aerodynamic design and analysis system for supersonic aircraft. Part 2: User's manual

An integrated system of computer programs for supersonic configurations is described. An explanation of system usage, the input definitions, and example output are included. For Part 1, see N75-18185; for Part 3, see N75-18186

Power Failure: How the Texas Probate Code Leaves a Gap in the Ability to Preserve Estates After Death

Upon a person’s death in Texas, the decedent’s heirs and beneficiaries are left without the legal power to preserve the separate probate estate. Although the Texas Probate Code provides for a temporary administration in the case of an immediate need to preserve an estate, the application and court process are not correspondingly responsive. This Comment focuses on the “gap” left behind by the Texas Probate Code and the statutory inadequacies that come to light in the face of current practical problems. Additionally, this Comment proposes amendments to the statute and describes an interim solution for practitioners with the goal of each to close this “gap” in order to better preserve decedents’ estates