5,581 research outputs found
Neurosystasis Satchell 1955
No full textKey to world species of Neurosystasis 1 Wing membrane unpatterned. M3 originating from M-fork, i.e. M1, M2 and M3 originating from same point..............2 - Wing membrane infuscate with white spots between vein apices. M3 originating near base of wing.....................3 2 Right gonostylus with two branches, left gonostylus one-branched. Hypopod with branches of equal length. (Jamaica).................................................................................... N. terminalis (Satchell, 1955) - Gonostyli with one branch. Hypopod with epandrial branch less than half the length of cercal branch. (Florida, USA)............................................................................ N. bromeliphila Wagner & Hribar, 2010 3 Wing with vein R2+3 attached to vein R4. Hypopod unbranched. (Argentina).... N. saltenia (Omad, Mangudo & Gleiser, 2015) - Wing with vein R2+3 not attached to vein R4, Hypopod divided into lateral epandrial branch and mesal cercal branch. (Cuba). 4 4 Eyes separated by distance of 1.4 facet diameters. Hypopod with epandrial branch as long as cercal branch............................................................................................. N. amplipenna (Knab, 1914) - Eyes separated by distance of 2 facet diameters. Hypopod with epandrial branch shorter than cercal branch..............5 5 Interocular suture V-shaped. Sc connected to R1. Faint crossvein present between the bases of M1+2 and M3. Right gonocoxite with mesal branch straight, lateral branch recurved laterad. Lobes of gonocoxite smooth. Apex of gonostyli without setae............................................................................................ N. mira sp. nov. - Interocular suture widely U-shaped. Sc not connected to R1. Bases of M1+2 and M3 without crossvein. Gonocoxite with both branches weakly curved towards median, lateral lobe of gonocoxite serrated laterally. Apex of gonostyli with 4-5 setae.............................................................................................. N. starki sp. nov.Published as part of Kvifte, Gunnar Mikalsen & Wagner, Rüdiger, 2017, Review of Neurosystasis Satchell, with two new species from Cuba and a discussion of cerci and surstyli in Psychodinae (Diptera: Psychodidae), pp. 81-90 in Zootaxa 4306 (1) on page 83, DOI: 10.11646/zootaxa.4306.1.4, http://zenodo.org/record/84308
SC author and illustrator Kate Salley Palmer signing book
No full textPhotograph of SC author and illustrator Kate Salley Palmer signing boo
Book signing by SC author and illustrator Kate Salley Palmer
No full textPhotograph of Book signing by SC author and illustrator Kate Salley Palme
High-resolution clean-sc
No full textIn this paper a high-resolution extension of CLEAN-SC is proposed: HR-CLEAN-SC. Where CLEAN-SC uses peak sources in “dirty maps” to define so-called source components, HR-CLEAN-SC takes advantage of the fact that source components can likewise be derived from points at some distance from the peak, as long as these “source markers” are on the main lobe of the Point Spread Function (PSF). This is very useful when sources are closely spaced together, such that their PSFs interfere. Then, alternative markers can be sought in which the relative influence by PSFs of other source positions is minimised. For those markers the source components better agree with the actual sources, which allows for better estimation of their locations and strengths. This paper outlines the theory needed to understand this approach and discusses applications to 2D and 3D microphone array simulations with closely spaced sources
SC author and illustrator Kate Salley Palmer talking to event attendees
No full textPhotograph of SC author and illustrator Kate Salley Palmer talking to Rita Lewi
Ca-modified Al–Mg–Sc alloy with high strength at elevated temperatures due to a hierarchical microstructure
No full textAl-Mg alloys are normally prone to lose part of their yield and tensile strength at high temperatures due to insufficient thermal stability of the microstructure. Here, we present a Ca-modified Al–Mg–Sc alloy demonstrating high strength at elevated temperatures. The microstructure contains Al4Ca phases distributed as a network along the grain boundary and Al3(Sc,Zr) nano-particles dispersed within the grains. The microstructure evolution and age-hardening analysis indicate that the combination of an Al4Ca network and Sc-rich nano-particles leads to excellent thermal stability even upon aging at 300 °C. The tensile strength of the alloy for temperatures up to 250 °C is significantly improved by an aging treatment and is comparable with the commercial heat-resistant aluminum alloys, i.e., A356 and A319. At a high temperature of 300 °C, the tensile strength is superior to the above-mentioned commercial alloys, even more so when expressed as the specific strength due to the low density of Ca-modified Al–Mg–Sc alloy. The excellent high-temperature strength results from a synergistic effect of solid solution strengthening, grain boundary strengthening and nanoparticle order strengthening.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.Novel Aerospace Material
First record of Neurosystasis Satchell in Mexico, with the description of one new species (Diptera, Psychodidae), and the validation of Chuspilepia Omad, Mangudo & Gleiser as subgenus
No full textNeurosystasis Satchell is newly recorded in Mexico by means of the description of a new species. Specimens captured in a tropical deciduous forest in southern Puebla, central Mexico, were examined and determined as a species new to science. The male and female are described based on morphological characteristics. Neurosystasis longistylis sp. nov. is similar in appearance to Neurosystasis saltenia (Omad, Mangudo & Gleiser, 2015), but is readily distinguished based on characters of the head, wing, and male genitalia. In both species, R2+3 is attached to vein R4, the wing membrane is infuscate with dark spots on vein apices, and lacks sensory organs near the apex of Sc, characters not present in other species of Neurosystasis, and for that reasons we proposed the recovery of Chuspilepia from its synonym and validate it as a subgenus of Neurosystasis to include both continental species.Neurosystasis Satchell es registrado por primera vez en México mediante la descripción de una nueva especie. Los especímenes capturados en un bosque tropical deciduo al sur del estado de Puebla, en el centro de México, fueron examinados y determinados como una nueva especie para la ciencia. El macho y la hembra son descritos con base en las características morfológicas del macho y la hembra. Neurosystasis longistylis sp. nov. es similar a Neurosystasis saltenia (Omad, Mangudo & Gleiser, 2015), pero se distingue fácilmente con base en las características de la cabeza, ala y genitales del macho. En ambas especies, la vena R2+3 está unida a la vena R4, la membrana del ala es ahumada con manchas oscuras en los ápices de las venas y carecen de órganos sensoriales cerca del ápice de la vena Sc, características no presentes en otras especies de Neurosystasis, y por esa razón se propone recuperar Chuspilepia de su sinonimia para validarla como un subgénero de Neurosystasis para incluir ambas especies continentales
SC-Square: Overview to 2021.
No full textThis extended abstract was written to accompany an invited talk at the 2021 SC-Square Workshop, where the author was asked to give an overview of SC-Square progress to date. The author first reminds the reader of the definition of SC-Square, then briefly outlines some of the history, before picking out some (personal) scientific highlights
SC-Square: Overview to 2021.
No full textThis extended abstract was written to accompany an invited talk at the 2021 SC-Square Workshop, where the author was asked to give an overview of SC-Square progress to date. The author first reminds the reader of the definition of SC-Square, then briefly outlines some of the history, before picking out some (personal) scientific highlights
Supply Chain (SC) Network Optimization
No full textSupply chain network design and optimization is one of the most important strategic decisions that an organization has to make. SC network design decisions are strategic-level SC decisions because they have long-lasting effect on the firms' supply chain performance and the decisions cannot be changed in a short period. In this chapter, the author aims to introduce the concept of SC network optimization to the managers of medium-sized enterprises. The chapter also explains the importance of the SC network optimization studies, educates readers about how they can benefit from the concept, and tries to show how the implementation of SC network optimization/design will improve the competitiveness of these organizations. The readers are also guided through the four steps of SC network optimization process. Finally, the chapter provides a brief review of the SC network optimization literature and proposes future research directions. </jats:p
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