gebhart/patrepeval huggingface dataset:
Wireless Telecommand and Telemetry System for Satellite (2007)

The telecommand and telemetry (TC-TM) subsystems are a vital component of any spacecraft and requires an interconnection between all other subsystems, in addition to the RF link to the ground segment. Traditionally all these on-board data communication requirements have been met by some combination of IEEE-1553 or RS-232 links. Currently, standards such as the CAN bus, Space wire based on IEEE-1335 and optical interconnection based on IEEE-1773 are also being used. All these rely on some form of physical link, either copper wire or fiber optic, between the communicating subsystems. The paper presents the architecture of Wireless Telecommand and Telemetry system. It evolutes the feasibility of potential technology like ZigBee & Bluetooth for this purpose. It also highlights the advantage and difficulties in implementing a wireless system in spacecraft.
Work for Section K (1946)

Article MetricsDownloadsCitationsNo data available.01234AugSepOctNovDecJan510Total6 Months12 MonthsTotal number of downloads for the most recent 6 whole calendar months.
Characterization of Flow Cytometer Instrument Sensitivity (2007)

Fluorescence sensitivity, measured in terms of resolution, allows the researcher to more accurately answer the question of how dim a cell can be and still be resolvable from another population. This measure focuses on the width, i.e., the standard deviation, of the population distributions and not on the location, i.e., the mean intensity, of populations on a histogram scale relative to the background. To determine the fluorescence sensitivity in terms of the resolution, both the detection efficiency, Q, and optical background, B, need to be measured. Both factors affect the ability to resolve dimly fluorescent subpopulations, and both factors are required to uniquely characterize the performance of a flow cytometer. Using Q and B, it is possible to determine the minimum fluorescence intensity that is resolvable from the background or from another population. This unit describes a practical and robust approach to measure the critical factors that determine the ability of a flow cytometer to analyze dimly fluorescent particles.
Graphene related magnetic materials: micromechanical exfoliation of 2D layered magnets based on bimetallic anilate complexes with inserted [Fe<sup>III</sup>(acac<sub>2</sub>-trien)]<sup>+</sup> and [Fe<sup>III</sup>(sal<sub>2</sub>-trien)]<sup>+</sup> molecules (2015)

The syntheses, structures and magnetic properties of the coordination compounds of formula [Fe<sup>III</sup>(acac<sub>2</sub>-trien)][Mn<sup>II</sup>Cr<sup>III</sup>(Cl<sub>2</sub> An)<sub>3</sub>]·(CH<sub>3</sub>CN)<sub>2</sub> (<b>1</b>), [Fe<sup>III</sup>(acac<sub>2</sub>-trien)][Mn<sup>II</sup>Cr<sup>III</sup>(Br<sub>2</sub>An)<sub>3</sub>]·(CH<sub>3</sub>CN)<sub>2</sub> (<b>2</b>) and [Ga<sup>III</sup>(acac<sub>2</sub>-trien)][Mn<sup>II</sup>Cr<sup>III</sup>(Br<sub>2</sub>An)<sub>3</sub>]·(CH<sub>3</sub>CN)<sub>2</sub> (<b>3</b>) are reported. They exhibit a 2D anionic network formed by Mn(ii) and Cr(iii) ions linked through anilate ligands, while the [Fe<sup>III</sup>(acac<sub>2</sub>-trien)]<sup>+</sup> or [Ga<sup>III</sup>(acac<sub>2</sub>-trien)]<sup>+</sup> charge-compensating cations are placed inside the hexagonal channels of the 2D network, instead of being inserted in the interlamellar spacing. Thus, these crystals are formed by hybrid layers assembled through van der Waals interactions. The magnetic properties indicate that these compounds behave as magnets exhibiting a long-range ferrimagnetic ordering at <i>ca.</i> 11 K, while the inserted Fe(iii) cations remain in the high-spin state. As for graphene, these layered materials can be exfoliated in atomically-thin layers with heights down to 2 nm by using the well-known Scotch tape method. Hence, this micromechanical procedure provides a suitable way to isolate ultrathin layers of this kind of graphene related magnetic materials. Interestingly, this method can also be successfully used to exfoliate the 2D anilate-based compound [Fe<sup>III</sup>(sal<sub>2</sub>-trien)][Mn<sup>II</sup>Cr<sup>III</sup>(Cl<sub>2</sub>An)<sub>3</sub>]·solv (<b>4</b>), which exhibits the typical alternated cation/anion layered structure. This result shows that the micromechanical exfoliation method, which has been extensively used for exfoliating van der Waals layered solids, can also be useful for exfoliating layered coordination compounds, even when they are formed by ionic components.
Clinical Judgment Is Not Reliable for Reducing Whole-body Computed Tomography Scanning after Isolated High-energy Blunt Trauma (2017)

Clinical judgment alone is not sufficient to reduce whole-body computed tomography scan use. In patients with a strictly normal physical examination, whole-body computed tomography scanning might be avoided, but this result deserves additional study in larger and more diverse populations of trauma patients.
The effect of inorganic pigment on the tensile properties of polycarbonate irradiated with UV – light (2011)

The effect of UV-light on the tensile properties of pure PC has been studied. It was shown that irradiation of PC undergo a drop in the tensile properties of 30 hour of exposure. The results of irradiated samples shows that the addition of ZnO and TiO2 with different percentages (0.5, 1, 1.5 %) will reduce the Young modulus and ultimate stress of PC/ZnO ,PC/ TiO2 composites
A Correlation Study of Finite-Element Modeling for Vibrations of Composite Material Panels (1974)

A correlation study has been made to evaluate the effectiveness of finite-element modeling for vibrations of composite material panels. The three types of composite material panels studied were: (1) Symmetrically laminated cross-ply panels, (2) unsymmetrically laminated cross-ply panels, and (3) a 1/6-scale sandwich wing model. Correlations of finite-element predictions for frequencies and vibration modes were made with Rayleigh-Ritz analyses and experimental data. For the symmetrically laminated panels the finite-element representation predicted vibration modes very accurately. For the unsymmetrically laminated panels it was found that predictions using uncoupled finite-element plate bending elements did not give good agreement with experimental data. The constant-chord, swept-wing model was effectively analyzed by finite-element presentations using either sandwich elements or ribs and spars.
Plant Nutrition Affected by Soil Salinity and Response of Rhizobium Regarding the Nutrients Accumulation (2014)

Identification of nutritional disorders in crops growing on saline soils may facilitate the development of breeding or agronomic practices that improve yields in saline areas. The aim of present review was to study the impact of salinity on the mineral nutrient. Nutrient disturbances under salinity and reduce plant growth by affecting the availability, transport, and partitioning of nutrients. Salinity may cause nutrient deficiencies or imbalances, due to the competition of Na + and Cl - with nutrients such as K + , Ca 2+ , and NO 3 . In saline soils N is one of the most growth - limiting nutrient. Phosphorus deficiency treatment decreased the whole plant fresh and dry mass, nodule weight, number and functioning. Potassium uptake by plants can be affected by high salinity and the Na concentration in the soil solution. There is abundant evidence that Na and the Na/Ca ratio affects K uptake and accumulation within plant cells and organs and that salt tolerance is correlated with selectivity for K uptake over Na.
A NEW CONCEPT FOR URBAN TRANSIT VEHICLE DRIVES TESTED AT THE HAMBERGER HOCHBAHN (1985)

After commissioning a first experimental vehicle, type DT 3-DAT 1, a new drive concept for a new generation of underground railway cars is developed by Brown, Boveri & Cie AG, Mannheim, (BBC), together with the Hamburger Hochbahn AG, Hamburger, (HHA). Instead of the self-ventilated three-phase motor, used until now, a light-weight, small, high-speed, fully enclosed motor is employed. The special low-noise motor is externally cooled by water circulation. The additional expenditure for external cooling is low. The heat-exchange between water and air is integrated in the ventilation and heating system. Thus the motor losses are used for heating and passenger compartment. A second heat-exchange in the ventilation and heating system utilizes the losses of the semiconductors and chokes via the evaporative cooling with R113. Calculations which base on extensive measurements show that between 32 kW and 58 kW out of the total amount of the losses can be utilized for heating. The water cooled motor, in connection with a two-step gearing, delivered by Carl Hurth, Maschinen und Zahnradfabrik. Munchen, has a lower noise emmission at higher speeds. From the obtained knowledge proposals for future vehicles of the HHA are derived.
Computer searching of infrared spectra using peak location and intensity data (1976)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTComputer searching of infrared spectra using peak location and intensity dataR. C. FoxCite this: Anal. Chem. 1976, 48, 4, 717–721Publication Date (Print):April 1, 1976Publication History Published online1 May 2002Published inissue 1 April 1976https://pubs.acs.org/doi/10.1021/ac60368a027https://doi.org/10.1021/ac60368a027research-articleACS PublicationsRequest reuse permissionsArticle Views101Altmetric-Citations24LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
A two-fold strategy for designing minimal fuel consumption, superior seakeeping highly maneuverable marine vessels based on ASAP hull technology and Sontag non-linear feedback stabilization (2009)

The present paper proposes a new hull design called ASAP (All Speeds Array of Pods). The new hull combines both the advantages of SLICE and SWATH hulls. A fifth movable pod is added amid the SLICE pods to achieve this goal. Computational Fluid Dynamics (CFD) software is used to optimize the proposed hull by adapting pods locations as well as fifth pod dimensions. The paper includes a comprehensive comparison between SLICE and ASAP hulls based on resistance, stability, technology, cost, structural analysis and sea-sickness/ sea-keeping behavior aspects. To further ensure the feasibility of the proposed hull design and improve its dynamic stability and fuel consumption, a control scheme based on Sontag non-linear feedback universal stabilization formula is proposed. The control scheme can be employed at both fifth pod lifting mechanism level and autopilot level. The present study verifies that the proposed hull is a truly competitive alternative to existing hull technologies.
Replicate real‐time PCR testing of DNA in maternal plasma increases the sensitivity of non‐invasive fetal sex determination (2003)

Amplification of free fetal DNA in maternal plasma is a valid and rapid technique for predicting fetal sex in first- and second-trimester pregnancies and could allow the restriction of invasive sampling procedures to male fetuses at risk of X-linked disorders.
Genesis of fat emboli. (1970)

University of Newcastle upon Tyne logical fat embolism can occur with remarkable rapidity and even very severe (grade 4) lung involvement may be found occasionally in those who die 'immediately' after injury.
Retrospective Reports by Healthy Intelligent Elderly People of Personal Events of their Adult Lives (1981)

The veridical nature of recollections of the same group of 60 adults over 40 years is examined. Parents of the subjects of the Berkeley Guidance Study, mean age 68.8 when seen, were intensively interviewed at three time periods from 1929 to 1969. Twenty-four factual and 24 attitudinal variables were studied. All information, from questions about education, occupation and place of birth, to relationship and bond with spouse, parents and children, about which the parents reported two or more times, is included. Some parents were more consistent reporters than others. Factual variables were recalled with greater agreement than attitudinal variables. Analysis of ratings of happiness of the parent's childhood found an increasing number of parents reporting having had a happy childhood at succeeding interviews. Reports were no more and no less consistent for periods when parents were younger or when time periods were shorter. However, parents' perceptions of factual and attitudinal variable showed a drop in the middle period, when their children were 17 years old.
Bovine Pancreatic Deoxyribonucleases A and C (1973)

Abstract Peptide maps obtained with tryptic-chymotryptic hydrolysates of bovine pancreatic DNases A, B, and C show a high degree of similarity. The map for DNase C, however, shows one peptide to have moved to a significantly less basic position. The peptide in question was isolated from hydrolysates of A and C and its sequence determined in each instance. The results show that DNase C contains a proline residue at the position occupied by histidine-118 in the 257-residue sequence of DNase A. The results confirm the conclusion, initially based on the amino acid compositions of DNases A and C, that the two forms differ by a residue change that could arise from a single base change in the relevant gene. Histidine-118 in DNase A is thus not a residue essential to the activity of the enzyme.
Bacteriologic evaluation of the efficacy of mechanical root canal instrumentation in endodontic therapy (1981)

The presence of bacteria in 17 single-rooted teeth, with periapical lesions, was studied throughout a whole period of treatment. The root canals were irrigated with physiologic saline solution during instrumentation. No antibacterial solutions or dressings were used. Bacteria were found in all initial specimens from the teeth (median number of bacterial cells 4 x 10(5), range 10(2) - 10(7)) and the number of strains in the specimens ranged from 1 to 10.88% of the strains were anaerobic. The most commonly isolated species were: Peptostreptococcus micros, Peptostreptococcus anaerobius, Fusobacterium nucleatum, Bacteroides oralis, Bacteroides melaninogenicus subsp intermedius and Eubacterium alactolyticum. Mechanical instrumentation reduced the number of bacteria considerably. Specimens taken at the beginning of each appointment usually contained 10(4) - 10(6) bacterial cells and at the end 10(2) - 10(3) fewer. Bacteria were eliminated from the root canals of eight teeth during the treatment. In seven root canals bacteria persisted despite treatment on five successive occasions. There was no evidence that specific microorganisms were implicated in these persistent infections. Teeth where the infection persisted despite being treated five times were those with a high number of bacteria in the initial sample.
Three-dimensional display system using a variable parallax barrier and eye tracking (2011)

In this paper, we propose an eye tracking system using a variable parallax barrier capable of providing the utmost natural stereo images. The variable parallax barrier consists of four sub-barriers, and a new cross connector composed of 640 lines flexible-printed-circuit is designed to create a sub-barrier. A depth camera based on the time-of-flight theory is utilized to implement an eye tracking system for an observer. The variable parallax barrier located in front of a monitor will be operated and controlled electrically through serial communication according to the values of coordinates gained by the camera. We compared the performance of the variable parallax barrier with that of other general systems via computer simulation.
Flächenabtastendes Laser- Doppler- Schwingungsanalysesystem / Scanning laser Doppler vibration analysis system (1984)

Article Flächenabtastendes Laser- Doppler- Schwingungsanalysesystem / Scanning laser Doppler vibration analysis system was published on November 1, 1984 in the journal tm - Technisches Messen (volume 51, issue 11).
Energy-efficient routing for 2D grid wireless sensor networks (2003)

Wireless sensor networks have become possible because of the on-going improvements in smart sensor technology. One important issue in wireless sensor networks is to achieve energy-efficient operation in order to extend network lifetime. For many applications, placement of sensing nodes can be pre-determined. In this paper, we propose several power-efficient routing algorithms for a sensor network with 2D grid topology, demonstrating that optimal routings are operation-specific and energy consumption can be minimized by optimally selecting data paths and base station location.
The Impact of C4d Pattern and Donor-Specific Antibody on Graft Survival in Recipients Requiring Indication Renal Allograft Biopsy (2009)

We examined the pattern of PTC C4d by immunohistochemistry and DSA in 297 kidney recipients with indication biopsies, and evaluated their predictive value for graft survival. Median biopsy time was 5.1 months posttransplant. Patients were followed for 17.9 +/- 9.4 months postbiopsy. An 18.5% had focal and 15.2% had diffuse C4d, with comparable graft survival (adjusted graft failure HR: 2.3, p = 0.001; HR:1.9, p < 0.02, respectively). 31.3% were DSA+, 19.5% class I and 22.9% class II DSA. Only those with class II DSA had worse outcome (adjusted HR:2.5, p = 0.001 for class II only; HR:2.7, p < 0.001 for class I/II DSA). Among patients with <10%C4d, 23.9% had DSA, compared to 68.9% with diffuse staining. For patients biopsied in first-year posttransplant presence of DSA, regardless of C4d positivity in biopsy, was a poor prognostic factor (adjusted graft failure HR: 4.2, p < 0.02 for C4d-/DSA+; HR:4.9, p = 0.001 for C4d+/DSA+), unlike those biopsied later. We have shown that focal C4d had similar impact on graft survival as diffuse pattern. During the first-year posttransplant either class I or II DSA, and afterward only class II DSA were associated with worse graft survival. DSA was predictive of worse outcome regardless of C4d for patients biopsied in first year and only with C4d positivity afterward, supporting the importance of assessment of both DSA and C4d pattern in biopsy.
A performance monitor based on virtual global time for clusters of PCs (2003)

Debugging the performance of parallel and distributed systems remains a difficult task despite the widespread use of middleware packages for automatic distribution, communication and tasking in clusters. In this paper we present a performance monitoring tool for clusters of PCs that is based on the simple concept of accounting for resource usage and on the simple idea of mapping all performance related state of hardware performance counters and operating system variables backwards to the application level. In this way a monitoring tool can explain the most relevant performance metrics at a higher level that is easily understood by the application developer. The most important metric for distributed high performance applications remains the total execution time vs. the number of compute nodes involved, since it translates into the scalability of an application. As a detailed contribution of this paper, we closely look into what is needed to reverse map the low level performance counters at each node back through the middleware layer responsible for the parallelization and distribution. The specific problems encountered and dealt with are the creation of a flexible notion of global time for time-stamping and the reassembling of performance data and an appropriate communication mechanism to minimize monitoring intrusion due to the additional networking traffic caused by the monitor. We show how our tool can be used to measure, explain and predict the performance and scalability of a distributed OLAP application running on clusters of PCs.
Research Guide to Post-Revolutionary Cuban Drama. (1974)

Since 1959 the Cuban government has supported the development of a national theatre and its integration with the cultural goals of the Revolution.Theatres in Havana presented more than 24 new plays by Cuban authors in 1961 and 21 in 1962, as compared to a total of only 30 productions during the period 1954-1958.In 1961 the National Council on Culture, through its Theatre Section, began to organize the institutions necessary to sustain and channel this creativity.In addition to these increases in domestic productivity, Havana became a theatre center of international importance through the establishment of the Festival of Latin American Theatre in 1961.By the end of the decade, 30 professional theatre groups were reported in the capital as compared to 6 professional groups in 1958.Several groups, formed since 1968, seem to be more fully integrated with the government's cultural objectives and should be of particular interest to the student of the Cuban Revolution: Grupo Doce, Joven Teatro, Tercer Mundo, Teatro Escambray.This bibliography represents an attempt to construct, from existing general bibliographies and from personal research in the Cuban journals Casa de las Amricas, Cuba internacional', Cuba, revista mensual, and INRA, a specialized research guide to Post-Revolutionary Cuban theatre.It includes three basic types of entries: general bibliographies employed in gathering data, article and book length reports, and reviews of books and of plays published during the postrevolutionary period.Paragraph length notices of plays in performance found in Cuba internacional and Cuba, revista mensual have not been included, nor have titles of published plays.Future work in this area should include a more comprehensive sampling of Cuban journals and a bibliography of plays published and/or performed.
Volatile Branched‐chain Fatty Acids and Phenolic Compounds in Aged Italian Cheese Flavors (1991)

ABSTRACT Analysis of cheeses by capillary gas chromatography (GC) revealed adequate concentrations of certain branched‐chain fatty acids (BCFAs) and phenols present to contribute distinctive flavors. Butyric acid‐like flavors in cow's milk Romano cheese were modified by 2‐methyl‐butanoic and 2‐ethylbutanoic acids which provided sweet, fruity notes. 4‐Ethyloctanoic acid provided a characterizing goaty note to Romano cheese made from mixed goats’and cows’milk. 4‐Methyloctanoic and 4‐ethyloctanoic acids along with p‐cresol, m‐cresol, and 3,4‐Di‐methylphenol appeared responsible for sheepy notes in sheep milk Romano cheese. Phenol and cresols (o, m, p) strongly contributed phenolic and medicinal flavor notes to smoked Provolone cheese. Low concentrations of BCFAs and phenols appeared to provide desirable background flavors to Parmesan cheeses.