Two-phase, passive separator-and-filter assembly

Assembly separates liquid from gas by passive hydrophilic/hydrophobic material approach. Apparatus is comprised of porous glass hydrophilic tubes. Quantity, lateral size, and pore size of glass tubes are determined by particular design requirements with regard to water rate, water quality contamination level, application endurance life, and operating differential pressure level

Immunofluorescent Examination of Biopsies from Long-Term Renal Allografts

Immunofluorescent examination of open renal biopsies revealed clear-cut glomerular localization of immunoglobulins not related clearly to the quality of donor-recipient histocompatibility in 19 of 34 renal allografts. The biopsies were obtained 18 to 31 months after transplantations primarily from related donors with a variable quality of histocompatibility match. IgG was the predominant immunoglobulin class fixed in 13 biopsies, and IgM in six. The pattern of immunoglobulin deposition was linear, connoting anti-GBM antibody in four of the 19; it was granular and discontinuous, connoting antigen–antibodycomplex deposits, in 13. An immune process may affect glomeruli of renal allografts by mechanisms comparable to those that cause glomerulonephritis in native kidneys. The transplant glomerulonephritis may represent a persistence of the same disease that originally destroyed the host kidneys or the consequence of a new humoral antibody response to allograft antigens. © 1970, Massachusetts Medical Society. All rights reserved

An investigation of reports of Controlled Flight Toward Terrain (CFTT)

Some 258 reports from more than 23,000 documents in the files of the Aviation Safety Reporting System (ASRS) were found to be to the hazard of flight into terrain with no prior awareness by the crew of impending disaster. Examination of the reports indicate that human error was a casual factor in 64% of the incidents in which some threat of terrain conflict was experienced. Approximately two-thirds of the human errors were attributed to controllers, the most common discrepancy being a radar vector below the Minimum Vector Altitude (MVA). Errors by pilots were of a much diverse nature and include a few instances of gross deviations from their assigned altitudes. The ground proximity warning system and the minimum safe altitude warning equipment were the initial recovery factor in some 18 serious incidents and were apparently the sole warning in six reported instances which otherwise would most probably have ended in disaster

Centaur operations at the space station

A study was conducted on the feasibility of using a Centaur vehicle as a testbed to demonstrate critical OTV technologies at the Space Station. Two Technology Demonstration Missions (TDMs) were identified: (1) Accommodations, and (2) Operations. The Accommodations TDM contained: (1) berthing, (2) checkout, maintenance and safing, and (3) payload integration missions. The Operations TDM contained: (1) a cryogenic propellant resupply mission, and (2) Centaur deployment activities. A modified Space Station Co-Orbiting Platform (COP) was selected as the optimum refueling and launch node due to safety and operational considerations. After completion of the TDMs, the fueled Centaur would carry out a mission to actually test deployment and help offset TDM costs. From the Station, the Centaur could carry a single payload in excess of 20,000 pounds to geosynchronous orbit or multiple payloads

Sheffield University CLEF 2000 submission - bilingual track: German to English

We investigated dictionary based cross language information retrieval using lexical triangulation. Lexical triangulation combines the results of different transitive translations. Transitive translation uses a pivot language to translate between two languages when no direct translation resource is available. We took German queries and translated then via Spanish, or Dutch into English. We compared the results of retrieval experiments using these queries, with other versions created by combining the transitive translations or created by direct translation. Direct dictionary translation of a query introduces considerable ambiguity that damages retrieval, an average precision 79% below monolingual in this research. Transitive translation introduces more ambiguity, giving results worse than 88% below direct translation. We have shown that lexical triangulation between two transitive translations can eliminate much of the additional ambiguity introduced by transitive translation

Evaluation of the gust-alleviation characteristics and handling qualities of a free-wing aircraft

Dynamic characteristics of aircraft with wings free to pivot spanwise axi

Study of blood flow sensing with microwave radiometry

A study and experimental investigation has been performed to determine the feasibility of measuring regional blood flow and volume in man by means of microwave radiometry. An indication was expected of regional blood flow from measurement of surface and subsurface temperatures with a sensitive radiometer. Following theoretical modeling of biological tissue, to determine the optimum operating frequency for adequate sensing depth, a sensitive microwave radiometer was designed for operation at 793 MHz. A temperature sensitivity of of 0.06 K rms was realized in this equipment. Measurements performed on phantom tissue models, consisting of beef fat and lean beefsteak showed that the radiometer was capable of sensing temperatures from a depth between 3.8 and 5.1 cm. Radiometric and thermodynamic temperature measurements were also performed on the hind thighs of large dogs. These showed that the radiometer could sense subsurface temperatures from a depth of, at least, 1.3 cm. Delays caused by externally-generated RF interference, coupled with the lack of reliable blood flow measurement equipment, prevented correlation of radiometer readings with reginal blood flow. For the same reasons, it was not possible to extend the radiometric observations to human subjects

The use of genetic algorithms to maximize the performance of a partially lined screened room

This paper shows that it is possible to use genetic algorithms to optimize the layout of ferrite tile absorber in a partially lined screened enclosure to produce a "best" performance. The enclosure and absorber are modeled using TLM modeling techniques and the performance is determined by comparison with theoretical normalized site attenuation of free space. The results show that it is possible to cover just 80% of the surface of the enclosure with ferrite absorber and obtain a response which is within +/-4 dB of the free space response between 40 and 200 MHz

A procedure for assessing aircraft turbulence- penetration performance

Subsonic transport aircraft performance assessment during atmospheric turbulenc

A re-assessment of pagan Anglo-Saxon burials and burial rites in Wiltshire: Not available

Much valuable work has been done in the past in the field pf pagan Anglo-Saxon burials in the county of Wiltshire. However, new material is constantly being added to the corpus and many of the earlier publications and theories are now in need of re-assessment in the light of new discoveries both in the county and elsewhere. The material contained in this thesis includes sites found as of spring, 1976, including the unpublished sites at Blackpatch and Swallowcliffe Down. Unfortunately, there was no readily available information for the recent sites, there was no readily available information for the most recent sites, such as Collingbourne Ducis, and these are touched upon without being studied in detail. Past work in the field of cemetery and burial analysis has laid much of its emphasis upon the study of grave goods, their derivations, affinities, and chronology, often to the neglect of the burials themselves. This thesis attempts to place the grave goods in a role of secondary importance and to analyse the burials, themselves, and the information they may contain as to the life styles, community organisation and religious practices of the pagan Anglo-Saxons of Wiltshire, as its primary function. Some sixty-three sites of varying historical and archaeological value, were studied: cemeteries, single burials, primary and secondary barrow burials, and chance finds. Many of these were very poorly excavated and published and several have been noted as being of dubious date. However, each burial and burial place was investigated using fairly strict methods. Burials were catagorized by age, sex, orientation, position, location within groups and cemeteries, physical abnormalities, type of grave, and wealth. The sites were analysed as to overall orientation (s), position (s), sex and age ratios, position layout, geological and geographical position, grave shapes and types, and comparative wealth. This method allowed for convenient comparative study of any two ( or more ) sites in the group. It was discovered that several other fields on interest might also benefit from this work, most notable, settlement, affinity, and migration studies. Burial sites appear to relate directly to the geology and geography of their areas. Although these studies fall outside the chief goals of this thesis, it does include some work on possible migration routes, land usage, settlement ( as concerns burial sites ), possible tribal affinities within the group, and the development of land divisions (parishes). The study of pagan Anglo-Saxon burial rites is, to a large extent a neglected one, possible due to a lack of verifiable information and comparative material. Whilst any conclusions reached must remain hypothetical, there is much information concerning them to be gleaned through intensive examination of burials, burial modes and abnormalities and, in some cases, grave goods. Abnormalities such as burnt grain found in children’s graves and purposely broken weapons may shed light upon the religious beliefs of these people and upon their attitudes towards death and the dead. The internal organisation of burial places may serve to indicate social and community structure. Several of the larger cemeteries point towards a strong emphasis upon the family (headed by the male), each of which may have had its own burial plot within a larger communal cemetery. This is evident in the way in which the cemetery has been laid out and allowed to develop. Appendix III contains sites which may be eliminated from the corpus as being of inconclusive date, whilst Appendix IV is new rough chronology, for the Wiltshire sites. These may be of some value to others wishing to pursue the subject. In summation, the material found within this thesis has been organised and analysed with most of the emphasis placed upon the burials and burial rites themselves and how they may be used to compile information pertaining to the religious and sociological structures of pagan Anglo-Saxon communities, their tribal affinities, migration routes, settlement patterns, and, even, their physiognomies