704 research outputs found
Crafts in the Southern Mountains
No full textThis article appeared in the 1931, November/December issue of "Handicrafter" magazine. It traces author "P.B."'s travels to various craft centers in the southern Appalachian mountains. Mentioned in the article are Allanstand Cottage Industries, The Spinning Wheel, Clementine Douglas, Winogene Redding, Evelyn Bishop, Mrs. Stone, Blue Ridge Weavers, Penland's Weaving Institute, Penland Weavers and Potters, Crossnore School, Mrs. H. N. Johnson, Pi Beta Phi Fraternity School, and Berea College's Fireside Industries. The author only gives a brief impression of his or her visit to each place. It is likely that author P.B. is Paul Bernat, editor of "Handicrafter" magazine
Afrosmicronyx mirei Haran & Perrin 2017, sp. n.
No full textAfrosmicronyx mirei Haran, sp. n. Figs 1C, 1E, 2G, 3G, 5G, 6G Material examined. Holotype ♂: ‘ Holotype [Red label]’ ‘ Cameroon. Maroua. VIII.1977. P.B. de Miré leg. “ Champ de mil” ’ ‘ Coll. Cirad. JHAR _00108’ ‘ Afrosmicronyx mirei Haran’, (specimen deposited in MNHN, Gene. coll). Paratypes: data as for holotype (1♂, 2♀, CBGP). Description. (♂) Body length 3.2–3.7 mm. Colour. Body integument black; vestiture consisting of recumbent scales, rounded or slightly elliptical, forming a brownish-gray area roughly located along interstriae 1 to 4, widened at base and apex of elytra; sides of elytra covered with whitish or grayish scales. Head. Rostrum longer than head plus prothorax, thin, regularly downcurved, covered by scales and coarsely punctate in basal ¼, punctures and vestiture less dense at antennal insertion, smooth at apex, transversal furrow at base of rostrum shiny, concealed with scales at edges, head short with a dense cover of scales; antennae reddish, segment 1 elongate, as long as 2+3, 4–5 square, 6–7 wider than long. Prothorax. Wider than long, widest slightly behind middle, narrowed at apex, sides rounded; integument densely punctuate, integument between punctures smooth and shiny; scales dark brown or grayish-brown, paler on sides and along a narrow longitudinal strip, mostly visible near scutellum, vestiture with a mix of dark broadly ovate scales and pale arcuate setiform scales. Elytra. Sides moderately convex, subparallel in basal half, rounded in apical half, widest near middle (ratio w/l: 0.65); humeri raised; striae narrow, interstriae flat wide and shiny, apex of interstria 5 with moderate declivital callosity, usually covered with paler scales, followed by depression; scutellum small but visible, squamose. Abdomen. Underside covered with whitish scales, ventrites 1–2 elongate, 1 as long as 2+3, and as 3–5. Legs. Reddish, femora clavate, armed with one ventral tooth; pro- and mesotibiae straight, fore-tibiae slightly bisinuate, all tibiae armed with one strong acute ventral tooth, located behind middle in protibiae, in middle in meso- and protibiae. Genitalia. Penis elongate (ratio w/l: 0.38), sides sub-parallel in basal two thirds, converging apex in apical 1/3, apex rounded, regular curvature in lateral view (Fig.6G). Females are distinguished from males by their slightly longer and more pointed ventral tooth on tibiae, and by their rostrum, which is less coarsely punctate and slightly thinner in apical third. Life history. Unknown. Adults were collected in millet plantations in August. Distribution. Cameroon. Discussion. Afrosmicronyx mirei is most similar to A. madagascariensis but can be distinguished from it by the presence of pale stripes of scales on the sides of the elytra (the colour of scales is homogeneous in A. madagascariensis) and by the location of the orifice of the penis (apically in A. mirei, nearer to the middle in A. madagascariensis). This species is also similar to A. dorsomaculatus, which has a close elytral pattern, but it can be differentiated by its larger prothorax, larger protibial tooth and less contrasting elytral pattern. Afrosmicronyx mirei also has a much longer penis (ratio w/l: 0.38) than A. dorsomaculatus (ratio w/l: 0.63). Name derivation. This species is dedicated to P. B. de Miré, a great entomologist who contributed substantially to the knowledge of the Afrotropical entomological fauna and who collected this species during his stay in Cameroon.Published as part of Haran, Julien & Perrin, Hélène, 2017, Revision of the genus Afrosmicronyx Hustache (Coleoptera, Curculionidae, Curculioninae), pp. 132-148 in Zootaxa 4365 (2) on pages 141-142, DOI: 10.11646/zootaxa.4365.2.2, http://zenodo.org/record/111750
Experimental and computational study of the influence of pre-damage patterns in unreinforced masonry crack propagation due to induced, repeated earthquakes
No full textInduced seismicity in the north of the Netherlands has recently exposed unprepared, unreinforced masonry structures to considerable earthquake risk. While the ultimate-limit state capacity of the structures is vital to assess the individual’s risk, their behavior during more frequent, lighter earthquakes, leading to ‘lighter damage’, has shown to be strongly linked to economic losses and societal unrest. When observing the light damage caused by minor earthquakes, the existing state of the structure appears to be highly relevant for the final damage intensity and configuration: earthquakes that may have otherwise caused no apparent damage, may intensify existing damage. In particular, incipient damage due to settlements is common in the baked-clay and calcium-silicate brick masonry structures of the region.This paper details the study of full-scale laboratory walls, pre-damaged following typical (crack) patterns caused by settlements and tested with quasi-static lateral loads. The aggravation of the damage during a relevant number of load cycles is monitored using full-field digital image correlation. The damage is quantified objectively using a purposely-developed damage parameter.The tests are used (together with previous studies) to further calibrate computational finite element models, which coupled with detailed soil-structure interaction boundary conditions, are then employed to assess a larger number of structural geometries and pre-damaged configurations exposed to (repeated) induced earthquake acceleration histories.Both experimental and computational approaches show that settlement pre-damage in masonry structures increases the likelihood and the amount of further damage. This is more easily observed when some initial, yet limited damage exists and the masonry wall is exposed to moderate earthquake vibrations in the order of 30 millimeters per second.Accepted Author ManuscriptApplied Mechanic
A Critical Look At Mias
No full textIn this report the author brings a figure of the costs that go with the implementation of a landing aid, being a successor to the currently used system ILS. These cost figures should give the reader an insight in the possible costs necessary for the implementation of MIAS. Also a little discussion concerning the market value and the inherent political issues going with it are interwoven in part one of this thesis. Part two deals with the question of how other systems proved their required integrity norms. Especially a closer look at the way ILS System 4000 proved its maturity is given. Two possible methods to decide the service level of the equipment will be described and a list of works where several test specifications are described. Also, a new conception will be introduced, the “AI product”. Part three gives an answer to the following question: there is in the Kalman filter of MIAS the postulation of Gaussian shaped white noise, with a certain variance and on the other hand we want to fetch the stringent ICAO requirements (especially those for the system integrity). Do these two matters go hand in hand or do they conflict each other? Is there a way to fulfil the norms and in the meanwhile make use of the mathematical simplicity of Gaussian shaped white noise? As a reaction on these issues some approaches to adaptive Kalman filtering are described and a new manner of tuning a Kalman filter is set up, based on a system identification algorithm called MOESP.Applied SciencesElectrical EngineeringTelecommunications and Traffic Control Systems Grou
Het voorkomen van enkele niet-oorspronkelijk wilde grassoorten in Zeeland
No full textThe distribution of Digitaria ischaemum (Schreb.) Miihlenb., D. sanguinalis (L.)P.B., Echinochloa crus-galli (L.)P.B., Setaria glauca I (L.)P.B.and S. viridisi (L.)P.B. in the province of Zeeland is described and discussed. These species were mostly rare or absent in this region until 1950, but are now more or less common especially along some main roads where conditions seem to be optimal for these thermophylic plants.
Also the distribution of Eragrostis multicaulis Steud., E. poaeoides P.B., Panicum miliaceum I -, Setaria verticillata (L.) P.B. and Sorghum halepense (L.) Pers. is given and discussed. Some aspects of the ecology of E. poaeoides are added. The author proposes to insert S. halepense in the Standardlist of the Netherlands Flora 1985 as a naturalized species
Un désarroi créateur. À propos de Zastrozzi et de St Irvyne de P.B. Shelley
No full textCreative disarray : on Shelley y s Zastrozzi and St Irvyne
Shelley’s two early novels written at the age of nineteen, at a time of emotional turmoil, exemplify the creative function of a work of literature for the author : the work constructs the writer’s psyche. As he writes, he feels he is living. What writing does is uncover, unknown to the author, an unformed thought ; the inner sorrow registers and the outer turmoil appears post facto. Zastrozzi is a triumphant affirmation, a victory for the humiliated son who has been rejected by his father. St Irvyne, with its missing chapters and the poems erased by the characters of the novel stands for a deeper, more inexpressible form of anguish, a feeling of non-existence.Les deux romans de jeunesse de Shelley, Zastrozzi et St Irvine, écrits à dix-neuf ans, dans un moment de désarroi, sont exemplaires de la fonction créatrice de l’œuvre pour un auteur ; l’œuvre construit sa psyché. Écrivant, il se sent vivant. L’écriture met en effet au jour, à l’insu de l’auteur, un impensé ; le malaise intérieur s’inscrit et le drame intérieur se découvre après-coup. Zastrozzi est une affirmation triomphale, une victoire de l’«humilié offensé», rejeté par son père. St Irvyne, avec les chapitres manquants, les poèmes effacés par les personnages du roman, représente un malaise plus profond, indicible, le sentiment de ne pas exister.Berry Nicole. Un désarroi créateur. À propos de Zastrozzi et de St Irvyne de P.B. Shelley. In: Cahiers Charles V, n°26, juin 1999. Vertiges de la création. Essais sur des œuvres britanniques et américaines. pp. 31-51
Are deficits in auditory in communication responsible for autism related social abnormalities?
No full textUltrasonic vocalizations: A non-invasive ethologically relevant tool to assess home cage welfare in rats
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Predator odour but not TMT induces 22-kHz ultrasonic vocalizations in rats that lead to defensive behaviours in conspecifics upon replay
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