3,939 research outputs found

    J.P. Patches Darigold pin, ca. 1950s-1960s

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    J.P. Patches was the character host of one of the longest running local children's shows in television history. The J.P. Patches Show aired on KIRO-TV in Seattle from 1958-1981 and broadcast over 10,000 episodes in its 23-year run. Darigold, a local dairy company founded in 1918, was an advertising sponsor.1 Pin, Promotional; Materials: plastic --metal; Dimensions: 2.25 in.Diam x .25 in.

    Weg met de negerkunst?

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    Contains fulltext : 82847.pdf (Publisher’s version ) (Open Access)J.P. Guépin Het verschil van mening Baarn:Ambo ,1994 90-263-1293-

    Voice Compression and Communications: Principles and Applications for Fixes and Wireless Channels

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    Up-to-date, expert coverage of topics in wireless voice communications Voice communication is the most important facet of mobile radio service. Even when the predicted surge of wireless data and Internet services becomes a reality, voice will remain the most natural means of human communication. Voice Compression and Communications details issues in wireless voice communications and treats compression, channel coding, and wireless transmission as a joint subject. Part I covers background material, whereas Part II provides detailed information on both proprietary and standardized analysis-by-synthesis codecs, including the speech codecs of virtually all existing wireline-based and wireless systems. Parts III and IV discuss mainly research-based wideband, audio, as well as very low-rate schemes likely to find their way into future standards. Voice Compression and Communications describes fundamental concepts in a non-mathematical way early in the book for those with only a background knowledge of signal processing and communications. More advanced readers will find detailed discussions of theoretical principles, future concepts, and solutions to various specific wireless voice communications problems

    Effect of hot-wet aging on the pin-bearing strength of a pultruded material with polyester matrix

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    This paper presents test results to show the effect of hot-wet conditioning on the pin-bearing strength of a pultruded fiber reinforced polymer material. Knowledge of this strength property, taking account of any reduction over the service lives of structures, is required to reliably calculate bearing strength when designing bolted connections. Pin-bearing strength is determined using an in-house test method with batches of nominally identical specimens, cut from the web of a 203 x 203 x 9.53 mm wide flange shape. This shape is from the 1525 series of Creative Pultrusion Inc., having a polyester based matrix. Specimens were immersed prior to strength testing under water for 3000 hours at the constant temperature of 40° C. The paper discusses the accelerated aging protocol and its relation to service life, and an explanation is given to why the material was aged for an unknown number of service years. Variables in the test matrix are the direction of the bearing force (0°, 45° and 90° to the direction of pultrusion) and plain pin diameter (four sizes from 9.7 mm to 25.4 mm). Comparing aged pin-bearing strengths with equivalent strengths for non-aged material it is found that the average reduction in characteristic strength (calculated in accordance with Eurocode 0) of the 12 batches, is in the range of 18 to 31%. The extent of strength reduction is found to be independent of pin size, except when the diameter is 25.4 mm. For the 0o situation a comparison is made between the characteristic strengths for the four pin diameters determined using BS EN 1990:2002 and ASTM D7290 to show that the latter Weibull distribution values are lower, and by 4 to 18%

    Journée sur le pin sylvestre : table ronde "Multifonctionnalité et territoires"

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    Compte rendu de la table ronde sur le thème "Multifonctionnnalité et territoires" des journées sur le pin sylvestre (2000

    Quantitative predictions on auxin-induced polar distribution of PIN proteins during vein formation in leaves

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    The dynamic patterning of the plant hormone auxin and its efflux facilitator the PIN protein are the key regulator for the spatial and temporal organization of plant development. In particular auxin induces the polar localization of its own efflux facilitator. Due to this positive feedback auxin flow is directed and patterns of auxin and PIN arise. During the earliest stage of vein initiation in leaves auxin accumulates in a single cell in a rim of epidermal cells from which it ows into the ground meristem tissue of the leaf blade. There the localized auxin supply yields the successive polarization of PIN distribution along a strand of cells. We model the auxin and PIN dynamics within cells with a minimal canalization model. Solving the model analytically we uncover an excitable polarization front that triggers a polar distribution of PIN proteins in cells. As polarization fronts may extend to opposing directions from their initiation site we suggest a possible resolution to the puzzling occurrence of bipolar cells, such we offer an explanation for the development of closed, looped veins. Employing non-linear analysis we identify the role of the contributing microscopic processes during polarization. Furthermore, we deduce quantitative predictions on polarization fronts establishing a route to determine the up to now largely unknown kinetic rates of auxin and PIN dynamics

    1973-10-25 Morehead State Concert and Lecture Series J.P. Donleavy

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    Renowned author J.P. Donleavy speaks on the plight of an author and the methods to write, recorded on October 25, 1973

    Assessment of Radiographic Image Quality by Visual Examination of Neutron Radiographs of the Calibration Fuel Pin

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    Up till now no reliable radiographic image qualitystandards exist for neutron radiography of nuclear reactorfuel. Under the Euratoro Neutron Radiography Working Group (NRWG) Test Program neutron radiographs were produced at different neutron radiography facilities within the European Community of a calibration fuel pin. The radiographs were made by the direct, transfer and tracketchmethods using different film recording materials. These neutron radiographs of the calibration fuel pin were used for the assessement of radiographic image quality. This was done by visual examination of the radiographs and assessing their radiographic image quality on an arbitrary scale

    Passivation de photodiodes pin en GaInAs par SiNx UVCVD

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    UVCVD SiNx thin films has been deposited at low temperature for the passivation of GaInAs pin photodiodes. A structural evaluation of the SiNx has been made by IR spectroscopy and its electrical characteristics has been evaluated on GaInAs and InP MIS structures. No degradation of the leakage current has been observed on mesa type GaInAs pin photodiodes before and after the UVCVD SiNx deposition. Finally, the passivation efficiency has been assessed by a high temperature aging experiment.Des films de SiNx ont été déposés à basse température par UVCVD pour la passivation de photodiodes pin en GaInAs. La structure physique du SiNx a été évaluée par spectroscopie IR et ses caractéristiques électriques grâce à la réalisation de structures MIS sur GaInAs et InP. Aucune dégradation du courant de fuite n'a été observé sur les photodiodes pin de type mesa avant et après le dépôt de SiNx . Finalement, la passivation a été testée par une expérience de vieillissement à haute température

    Pin sylvestre, éleveurs et autres acteurs, quels rapports, quelles approches pour un aménagement durable ?

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    International audienceLa moitié de la surface du département de la Lozère est occupée par la forêt dont 50% environ proviennent de plantations de pins noirs, le reste étant le développement spontané du pin sylvestre. De fait l'extension du pin sylvestre est un phénomène récent. Il est en partie le résultat de la mise en oeuvre d'un modèle agricole moderne qui se traduit par l'abandon de terres marginales, plus particulièrement dans les moyennes montagnes et dans les zones méditerranéennes où le pin sylvestre va se développer naturellement. L'agriculture des zones à fortes contraintes, doit maintenant composer avec cet élément qui n'étonne pas tant par sa nouveauté, que dans son caractère conquérant et difficile à maîtriser dans le contexte économique et social actuel. Ce modèle agricole et ses effets différenciés dans l'espace et dans le temps sont liés en grande partie à l'évolution de la politique agricole. Mais dans un espace rural où les agriculteurs ne sont plus majoritaires, les acteurs se disant concernés se révèlent être nombreux, divers et de mieux en mieux organisés pour peser sur les dynamiques de ces types de territoire. La concertation entre ces différents acteurs et la recherche de cohérence entre les politiques publiques appliquées aux problèmes de gestion de l'espace demeurent essentielles pour une meilleure maîtrise de l'occupation des terres, notamment par le pin sylvestre. La mise au point d'outil d'aide à la négociation constitue un enjeu important pour la recherche en sciences sociales
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