Modal Analysis of the Centrifuges of NASA\u27s Centrifugal Nuclear Thermal Rocket Project

https://louis.uah.edu/research-horizons/1305/thumbnail.jp

Carbon Fiber Composite Wheel Fabrication Method for Student-Built Mars Rover Analog

https://louis.uah.edu/research-horizons/1326/thumbnail.jp

Frestonska ograda z nasipi: Nova raziskava zgodnjega neolitika v vzhodni Angliji (Suffolk)

Current models view southeast England as where Neolithic lifeways were first introduced to Britain from continental Europe c. 4000 cal BC, however, there has been little work detailing this process in coastal East Anglia. In 2019, work at the Freston causewayed enclosure provided the first view of a major gathering space associated with semi-mobile farming communities of the Early Neolithic in the county of Suffolk and located on a major estuary close to the North Sea. Excavation produced a rich assemblage of worked flint and Mildenhall Ware pottery (potentially for feasting), plus evidence for the consumption of cereals and hazelnuts.S trenutnimi modeli vidimo jugovzhodno Anglijo kot prostor, kamor je ok. 4000 pr. n. št. prvič prispel neolitski način življenja v Veliko Britanijo iz kontinentalne Evrope. Do sedaj je bilo znanih le malo podatkov o tem, kako je ta proces potekal na priobalnem območju vzhodne Anglije. Leta 2019 so nam raziskave ograde z nasipi v Frestonu omogočile prvi vpogled na velik prostor za zbiranje, ki je vezan na delno mobilne poljedelske skupnosti iz zgodnjega neolitika v okrožju Suffolk in se nahaja ob glavnem izlivu blizu Severnega morja. Z izkopavanji smo pridobili bogat zbir obdelanih kamnitih orodij in lončenino tipa Mildenhall (morda uporabljena za pogostitve) ter dokaze o uživanju žit in lešnikov

The Cretan Mesolithic in context: new data from Livari Skiadi (SE Crete)

Investigations at Livari (south-eastern Crete) produced a small Mesolithic chipped stone assemblage, whose techno-typological characteristics situate it within an ‘early Holocene Aegean island lithic tradition’ (9000–7000 cal BC). The material provides antecedent characteristics for the lithics of Crete’s founder Neolithic population at Knossos (c. 7000–6500/6400 cal BC). The idiosyncrasies of the Knossian material can be viewed as a hybrid lithic tradition that emerged from interaction between migrant Anatolian farmers and indigenous hunter-gatherers. Small quantities of Melian obsidian at Livari attest to early Holocene maritime insular networks, knowledge of which likely enabled the first farmers’ successful voyage to Crete.Raziskave na najdišču Livari (na jugovzhodnu Krete) so pokazale navzočnost drobnega mezolitskega kamnitega inventarja, katerega tehnološke in tipološke značilnosti ga postavljajo v okvir ‘zgodnje holocenske egejske tradicije kamnitih artefaktov’ (9000–7000 cal BC). Ta material predstavlja predhodnike tipov kamnitih orodij, ki so značilna za kretsko ustanoviteljsko neolitsko populacijo v Knossosu (ok. 7000–6500/6400 cal BC). Značilnosti materiala iz Knossosa kažejo na hibridne tradicije v tipologiji kamnitih artefaktov, ki so se pojavile kot posledica interakcije med migranti – poljedelci iz Anatolije in domorodnimi lovci in nabiralci. Manjša količina obsidiana iz Melosa na najdišču Livari pa kaže na zgodnje holocensko morsko omrežje, ki je potekalo med otoki, kar je omogočalo prvim poljedelcem, da so pridobili znanje za uspešno plovbo do Krete

Design of a High-altitude Balloon to Investigate shadow band Phenomena during Solar Eclipses

https://louis.uah.edu/research-horizons/1332/thumbnail.jp

Descent and Control of Autonomous Payload

https://louis.uah.edu/research-horizons/1334/thumbnail.jp

The Freston Causewayed Enclosure

Current models view southeast England as where Neolithic lifeways were first introduced to Britain from continental Europe c. 4000 cal BC, however, there has been little work detailing this process in coastal East Anglia. In 2019, work at the Freston causewayed enclosure provided the first view of a major gathering space associated with semi-mobile farming communities of the Early Neolithic in the county of Suffolk and located on a major estuary close to the North Sea. Excavation produced a rich assemblage of worked flint and Mildenhall Ware pottery (potentially for feasting), plus evidence for the consumption of cereals and hazelnuts

Reconstruction of primary vertices at the ATLAS experiment in Run 1 proton–proton collisions at the LHC

This paper presents the method and performance of primary vertex reconstruction in proton–proton collision data recorded by the ATLAS experiment during Run 1 of the LHC. The studies presented focus on data taken during 2012 at a centre-of-mass energy of √s=8 TeV. The performance has been measured as a function of the number of interactions per bunch crossing over a wide range, from one to seventy. The measurement of the position and size of the luminous region and its use as a constraint to improve the primary vertex resolution are discussed. A longitudinal vertex position resolution of about 30μm is achieved for events with high multiplicity of reconstructed tracks. The transverse position resolution is better than 20μm and is dominated by the precision on the size of the luminous region. An analytical model is proposed to describe the primary vertex reconstruction efficiency as a function of the number of interactions per bunch crossing and of the longitudinal size of the luminous region. Agreement between the data and the predictions of this model is better than 3% up to seventy interactions per bunch crossing