307 research outputs found
Kant o obowiązkach dotyczących przyrody
Zadanie pt. „Digitalizacja i udostępnienie w Cyfrowym Repozytorium Uniwersytetu Łódzkiego kolekcji czasopism naukowych wydawanych przez Uniwersytet Łódzki” nr 885/P-DUN/2014 dofinansowane zostało ze środków MNiSW w ramach działalności upowszechniającej naukę
Formalism around 1800: A Grudging Concession to Aesthetic Sensibility
This paper compares the outwardly similar structural formalisms of Marc- Antoine Laugier and Arthur Schopenhauer (who uses many of Laugier’s examples). Laugier purports to base his aesthetics on an historical argument from the “primitive hut”; but his preferences are really based on aversion to structurally and programmatically non-functional elements. His preferences show disregard for purely aesthetic considerations, such as pleasing proportions. Schopenhauer’s formalism is based on his cognitivist approach to aesthetics, according to which architecture is above all supposed to demonstrate relations between load and support, but in spite of this shows greater sensitivity to sensory beauty.Ovaj članak poredi naizgled sličan strukturalni formalizam Mark-Antoan Ložijea i Artura Šo-penhauera (koji je koristio mnoge Ložijeove primere). Ložije zasniva svoju estetiku na istorij-skom argumentu polazeći od „primitivne kolibe“, ali njegove preferenciju su ipak zasnovane na averziji prema strukturalno i programski nefunkcionalnim elementima. One otkrivaju ne-haj za razmatranja koja su čisto estetska, kao što su to proporcije koje izazivaju zadovoljstvo. Šopenhauerov formalizam zasniva se na njegovom kognitivističkom pristupu estetici prema kome bi arhitektura, pre svega, trebalo da demonstrira odnos između opterećenja i oslonca, ali uprkos tome pokazuje veću osetljivost za čulnu lepotu
Dynamic induced softening in frictional granular material investigated by DEM simulation
A granular system composed of frictional glass beads is simulated using the
Discrete Element Method. The inter-grain forces are based on the Hertz contact
law in the normal direction with frictional tangential force. The damping due
to collision is also accounted for. Systems are loaded at various stresses and
their quasi-static elastic moduli are characterized. Each system is subjected
to an extensive dynamic testing protocol by measuring the resonant response to
a broad range of AC drive amplitudes and frequencies via a set of diagnostic
strains. The system, linear at small AC drive amplitudes has resonance
frequencies that shift downward (i.e., modulus softening) with increased AC
drive amplitude. Detailed testing shows that the slipping contact ratio does
not contribute significantly to this dynamic modulus softening, but the
coordination number is strongly correlated to this reduction. This suggests
that the softening arises from the extended structural change via break and
remake of contacts during the rearrangement of bead positions driven by the AC
amplitude.Comment: acoustics, nonlinearity, granular medi
EC58-201 More Profit through Systematic... Crossbreeding of Hogs
Extension Circular 58-201 provides information and benefits of systematic crossbreeding of Hogs
4-H Beef Club Manual : Extension Circular 2-61-2
Revised and updated--Manual for raising a calf project. This includes all aspects from purchasing the calf to showing it and marketing it
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