1,133 research outputs found
A Discourse Theoretical Approach to Sovereign Debt Restructuring: Towards a Democratic Financial Order
No full textTest vehicle detector characterization system for the Boeing YAL-1 airborne laser
No full textThesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2008.Includes bibliographical references (p. 71-72).The test vehicle detector characterization system provides a convenient and efficient tool for rapidly evaluating the optical sensitivity of the GAP6012, GAP100, GAP300, and GAP1000 indium gallium arsenide detectors used on the vendor produced detector strips, which are used in the MARTI program at MIT Lincoln Laboratory. This characterization system exploits the approximately linear relationship between the radiant intensity of the gallium arsenide light emitting diodes (LEDs) and the forward current through the LEDs to correlate the expected irradiance with the observed detector counts. Illumination tests of different intensities are performed to characterize each detector's performance over its entire operating spectrum. Each test is performed multiple times to determine the statistical variance of each detector. A detector which exhibits a high statistical variance will not pass the qualifying stage. The results of these tests and others are saved and indexed by strip serial number; allowing for future reference if the need should arise. The system was developed in a modular fashion so as to be compatible with both the high power (HP) and low power (LP) detector strips with only minor hardware and firmware updates.by Jason Thomas Steininger-Holmes.M.Eng
Observations sur les fossiles du calcaire intermédiaire de l'Eifel / par M. Jean Steininger, ... Publié à Trèves en 1831, traduit de l'allemand par M. Dommando
No full textNote : 41 p : 4 pl ; 31 cm. (Mémoires de la Société Géologique de France, 1ère série, tome I, mémoire n° 15)
Fig. 4 in Species Delineation Within the Euwallacea fornicatus (Coleoptera: Curculionidae) Complex Revealed by Morphometric and Phylogenetic Analyses
No full textFig. 4. Nonmetric multidimensional scaling plot of morphological distances of the eight morphological characters studied with ellipses showing one standard deviation around the centroid of each clade.Clade is indicated by shape: KSHB (square), PSHB (black circle),TSHBa (white circle),TSHBb (triangle). Stress = 0.138.Published as part of Gomez, Demian F., Skelton, James, Steininger, M. Sedonia, Stouthamer, Richard, Rugman-Jones, Paul, Sittichaya, Wisut, Rabaglia, Robert J. & Hulcr, Jiri, 2018, Species Delineation Within the Euwallacea fornicatus (Coleoptera: Curculionidae) Complex Revealed by Morphometric and Phylogenetic Analyses, pp. 1-11 in Insect Systematics and Diversity 2 (2018) on page 8, DOI: 10.1093/isd/ixy018, http://zenodo.org/record/455184
Exploiting PUF Variation to Detect Fault Injection Attacks
No full textThe massive deployment of Internet of Things (IoT) devices makes them vulnerable against physical tampering attacks, such as fault injection. These kind of hardware attacks are very popular as they typically do not require complex equipment or high expertise. Hence, it is important that IoT devices are protected against them. In this work, we present a novel fault injection attack detector with high flexibility and low overhead. Our solution is based on the reuse of a security primitive used in many IoT devices, i.e., ring oscillator (RO) physically unclonable function (PUF). Our results show that we obtain a high detection effectiveness and no false alarms against most popular fault injection attacks based on voltage and clock manipulations.Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Computer EngineeringQuantum & Computer Engineerin
Crystal structure and lattice dynamics of endotaxial FeSi2 nanowires
No full textThe reduction of the dimensions of crystals to the nanometer length scale induces significant deviations in the phonon dispersions and phonon density of states (PDOS) of nanostructures compared to their bulk counterparts and novel vibrational phenomena emerge. I will present recent results of lattice dynamics study of alpha-phase FeSi2 endotaxial nanowires, epitaxially grown on Si(110), as a function of their size [1]. The experimentally obtained Fe-partial PDOS from nuclear inelastic scattering are comprehensively understood by the help of ab initio theory [2]
[1] J. Kalt, M. Sternik, B. Krause, I. Sergueev, M. Mikolasek, D.G. Merkel, D. Bessas, O. Sikora, T. Vitova, J. Göttlicher, R. Steininger, P.T. Jochym, A. Ptok, O. Leupold, H.-C. Wille, A.I. Chumakov, P. Piekarz, K. Parlinski, T. Baumbach and S. Stankov, Phys. Rev. B 102 (2020) 195414 [2] J. Kalt, M. Sternik, B. Krause, I. Sergueev, M. Mikolasek, D. Bessas, O. Sikora, T. Vitova, J. Göttlicher, R. Steininger, P.T. Jochym, A. Ptok, O. Leupold, H.-C. Wille, A. I. Chumakov, P. Piekarz, K. Parlinski, T. Baumbach and S. Stankov, Phys. Rev. B 101 (2020) 16540
Megantereon whitei
No full textMegantereon whitei (Broom, 1937) (Fig. 5) MATERIAL EXAMINED. — Craniodental. CD 5963, right posterior mandible fragment with M 1 roots (Fig. 5A); CD 5997, left mandible from symphysis to M 1 (Fig. 5B, and see Hartstone-Rose et al. 2007); CD 10452, damaged right M 1 (Fig. 5C, D; Table 2); Postcranial: CD 3221, left proximal tibial epiphysis; CD 7336, left navicular; CD 5978, right navicular. DESCRIPTION AND TAXONOMIC ASSIGNMENT The three craniodental specimens are clearly attributable to Megantereon (Fig. 5 A-D). The most complete, CD 5997, is shown in Fig. 5B and fully described by Hartstone-Rose et al. (2007). The other two specimens are also from the lower jaws. CD 5963 is a posterior fragment of mandible, broken horizontally above the condyle and also anterior to the M 1 alveolus (Fig. 5A). The masseteric fossa is shallow and extends to the posterior root of the M 1, but the most notable feature is the very small distance (22 mm) between the angle of the ramus and the condylar process. The coronoid process must have been correspondingly small, and this indicates that the specimen can only have belonged to a very small machiarodont. CD 5963 is of similar size to CD5997, although the carnassial in CD 5963 may have been slightly larger. CD 10452 is an unworn M 1 that is broken across the protoconid (Fig. 5C, D). The paraconid is small (length: 8.7 mm) with a relatively larger protoconid. It is much smaller than KA64, and is most similar to the heavily damaged type specimen of Megantereon whitei (TM 856) from Schurveberg (Broom 1937; Turner 1987b). In contrast, both the P 4 and M 1 of CD 5997 are smaller than those of TM 856. As discussed by Hartstone-Rose et al. (2007) the previously known Megantereon whitei material from Coopers D is very small, and these specimens fit within that hypodigm. They most closely fit with the morphology of the type specimen of M. whitei, and there is growing consensus that M. whitei is the only Pleistocene species of the genus Megantereon in Africa (Palmqvist et al. 2007; Werdelin & Peigné 2010). Therefore the Cooper’s D specimens are assigned to this species. Three postcranial specimens have also been assigned to M. whitei. An isolated proximal epiphysis from a left tibia with some damage to the ventral edge (CD 3221) is an excellent match for KB 5333M, a partial skeleton of Megantereon whitei published by Vrba (1981). The two naviculae (CD 7336 and CD 5978) may be antimeres and are very similar to the illustrations of M. cultridens (Cuvier, 1824) from Senéze (Christiansen & Adolfssen 2007) and KB 6018 (Megantereon whitei). In comparison with DN 2571 (here referred to D. cf. aronoki) the two Cooper’s D naviculae are smaller, not so thick and have less clearly defined facets.Published as part of O'Regan, Hannah J. & Steininger, Christine, 2017, Felidae from Cooper's Cave, South Africa (Mammalia: Carnivora), pp. 315-332 in Geodiversitas 39 (2) on page 323, DOI: 10.5252/g2017n2a8, http://zenodo.org/record/520612
Steininger, John H. (Death, 1903-06-17)
No full textAddress: 832 Barr St.Age at death: 32-6-11263/Pg 63/1903/M W M/Ohio/Dr. W. D. Haines/Busse & Borgmann/Spring Grove Cem.Original record filed in drawer labeled 'STEFFEL-STEINRUCKER'
Geoscience Teaching and Student Interest in Secondary Schools-Preliminary Results from an Interest Research in Greece, Spain and Italy.
No full textThe results of a topic-interest study on geosciences
among 14- to 17-year-old school students are reported. The
research was organized in the framework of the European
project Geoschools to investigate the interest of students in
the context of teaching strategies for geosciences in secondary
schools. A questionnaire was designed as the main datacollection
tool, based on the results of a comparison on
geosciences curricula among the five European countries
(Austria, Greece, Portugal, Italy, and Spain) which are the
partners in the GEOschools project. The present study focuses
on results from Greece and Spain but also includes preliminary
results from Italy, for comparison purposes. Questionnaires
were distributed in 20 schools (through 20 teachers with
around 600 students) in each participating country. Specifically,
a sample of 554, 14- to 15-year-old students were surveyed
in 20 schools across Greece, a sample of 155, 14- to 17-yearold
students was surveyed in seven schools in Aragón (Spain),
and a sample of 624, 14- and 16-year-old children was surveyed
in 11 schools in Sicily (Italy) to identify their main
topics of interest in geosciences. Additional surveys in Spain
in Castilla-La Mancha (Guadalajara), Madrid, Catalonia, and
in the province of Gerona (134 students, 14–17 years old) and
from Portugal (284 students) are still in the process of evaluation.
Results indicate that the most attractive topics for children
are Natural Hazards and Palaeontology. Teaching strategies
also raise interest. Children from Spain generally show
less interest in geosciences than do children of the same age
from Greece. A discussion on the high educational potential of
geological heritage is included, providing clear case examples
for showing geological problems
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