Archaeological Investigations at the Gresser House (41BX369) San Antonio, Texas

During March 1977, archaeologists from the Center for Archaeological Research, The University of Texas at San Antonio, conducted archaeological investigations at the historic Gresser House located on the northwest corner at the intersection of South Presa and Nueva Streets in the historic district of downtown San Antonio (Fig. 1). The investigations were designed to examine building foundation remains which were uncovered during renovation work being carried out at the Gresser House. These were continued investigations following recommendations made by Anne Fox, who did an initial examination of structural remains and associated animal bones and artifacts uncovered by workmen after the removal of a small brick structure attached to the Gresser Hous

Archaeological Investigations at the Mayer House (41BX326) San Antonio, Texas

The Maximilian B. Mayer House (41 BX 326) once stood\u27 on the corner formed by King William Street, South Saint Mary\u27s Street and Durango Boulevard (Fig. l). It was torn down about 1967, but its foundations and other subsurface structures still remain in the ground. The recent acquisition and renovation by the San Antonio Conservation Society of the Anton Wulff House (at 107 King William Street) included landscaping and the planting of trees over the site of the Mayer House (at 101 King William Street). Since the land is part of the King William Historical District, this alteration of the earth necessitated a preliminary investigation by an archaeologist to determine what cultural resources might be affected and to mitigate the effects of this disturbance on any such cultural resources

Mated vertical ground vibration test

The Mated Vertical Ground Vibration Test (MVGVT) was considered to provide an experimental base in the form of structural dynamic characteristics for the shuttle vehicle. This data base was used in developing high confidence analytical models for the prediction and design of loads, pogo controls, and flutter criteria under various payloads and operational missions. The MVGVT boost and launch program evolution, test configurations, and their suspensions are described. Test results are compared with predicted analytical results

Archaeological Survey and Testing at Rancho de las Cabras, Wilson County, Texas

During summer 1980 a program of archaeological survey and testing was carried out by the Center for Archaeological Research, The University of Texas at San Anionio, for the Texas Parks and Wildlife Department at the site of Rancho de las Cabras near Floresville, Texas. The site is reputed to be the livestock ranch of Mission San Fran~isco de la Espada in the late 18th century. Large areas of the site were surveyed to determine if prehistoric sites were present. The limits of the historic occupation were determined through surface survey and shovel testing. Archaeological testing within and adjacent to the historic ruins located architectural and-cultural features which will need . further excavation and study. The depth and composition of the historic deposits throughout the site were tested and recorded. A map of the compound was prepared in cooperation with professional surveyors provided by the Parks and Wildlife Department. Recommendations for future historical and archaeological research are included in the report

Historical Survey of the Lands within The Alamo Plaza - River Linkage Development Project

In December 1977 the Center for Archaeological Research, The University of Texas at San Antonio, entered into a contract with the City of San Antonio to compile a history of a section of the city bounded by Alamo Street, Crockett Street, the San Antonio River and Houston Street. Plans for the area include removal of a number of buildings and construction of a major hotel, a parking garage, and a park linking Alamo Plaza with the San Antonio River Walk. The area to be affected includes the sites of a number of important historical structures, including the southwest corner of Mission San Antonio de Valero and the site of one of the first commercial ice plants in the city. The document produced by this study is to be used as a basis for planning archaeological excavations in the area to be disturbed by construction. Research has been carried out by the authors under the supervision of Dr. Thomas R. Hester, Director of the Center and Jack Eaton, Assistant Director

Archaeological and Historical Investigations at the Alamo North Wall San Antonio, Bexar County, Texas

In March 1979, the Center for Archaeological Research of The University of Texas at San Antonio conducted test excavations in the vicinity of the north wall of the Alamo within the second patio. A great deal of information was recovered about all phases of the development of the site, from the early eighteenth century through the restoration period in the early twentieth century. Information was recovered on the location and dimensions of defensive trenches and structures constructed in the north courtyard in preparation for the battles of late 1835 and March 1836. A human cranium recovered from the fill of a defensive trench has been identified as possibly a male about 17 to 23 years of age. The ethnic affiliation of the individual could not be positively determined, nor could the cause of death

Space station structures and dynamics test program

The design, construction, and operation of a low-Earth orbit space station poses challenges for development and implementation of technology. One specific challenge is the development of a dynamics test program for defining the space station design requirements, and identifying and characterizing phenomena affecting the space station's design and development. The test proposal, as outlined, is a comprehensive structural dynamics program to be launched in support of the space station (SS). Development of a parametric data base and verification of the mathematical models and analytical analysis tools necessary for engineering support of the station's design, construction, and operation provide the impetus for the dynamics test program. The four test phases planned are discussed: testing of SS applicable structural concepts; testing of SS prototypes; testing of actual SS structural hardware; and on-orbit testing of SS construction

An analysis of supersonic aerodynamic heating with continuous fluid injection

An analysis of the steady-state aerodynamic heating problem at high-supersonic speeds is made for two-dimensional flows with laminar boundary layers. The aerodynamic heating is shown to be reduced substantially by injecting a small amount of coolant through a porous surface into the boundary layer. The analysis includes calculations of the cooling requirements and equilibrium surface temperatures for flat plates and for an equilibrium surface temperatures for flat plates and for flat porous surfaces with several rates of fluid injection at Mach numbers from 5 to 15 and altitudes from sea level to 200,000 feet. Some calculations of the skin friction are also included