Search results for "157"
showing 10 items of 287 documents
The Evolution of Disk Winds from a Combined Study of Optical and Infrared Forbidden Lines
2020
We analyze high-resolution (dv=<10km/s) optical and infrared spectra covering the [OI] 6300 angstrom and [NeII] 12.81 micron lines from a sample of 31 disks in different evolutionary stages. Following work at optical wavelengths, we use Gaussian profiles to fit the [NeII] lines and classify them into HVC (LVC) if the line centroid is more (less) blueshifted than 30 km/s with respect to the stellar radial velocity. Unlike for the [OI] where a HVC is often accompanied by a LVC, all 17 sources with a [NeII] detection have either a HVC or a LVC. [NeII] HVCs are preferentially detected toward high accretors (Macc > 10$^{-8}$ Msun/yr) while LVCs are found in sources with low Macc, low [OI] …
P. Gallandii ... Pro schola Parisiensi contra nouam academiam Petri Rami oratio ...
1551
Sig.: A-K8 Caplletres orl. - Reclams
Libri Quator De Antiquitatibus Lusitaniae / à Lucio Andrea Resendio olim inchoati, & à Iacobo Menoetio Vasconcello recogniti, atq[ue] absoluti ; Ac…
1593
Sig. [creu grega]4, A-R8, [creu grega]-4[creu grega]2, A-C8, [signe]10. - Inclou: Vita L. Andreae Resendii / Autore Iacobo Menoetio Vasconcello i Vita Iacobi Moenetii Vasconcelli / ab ipso conscripta Capitals grav., filets, frisos
Efeitos da sustentabilidade e valor logístico nas relações entre empresas de transporte marítimo
2020
Resumen El objetivo de este trabajo fue analizar cómo la sostenibilidad (económica, social y ambiental), bajo el enfoque de triple línea base, afecta la calidad de servicio, el valor logístico y la satisfacción en empresas del sector marítimo. Se propone un modelo teórico que se contrasta con la información suministrada por una muestra de 50 responsables de empresas (transitarios, importadores y exportadores) en Panamá. La información se analiza mediante la estimación de regresión por mínimos cuadrados parciales, que permite confirmar el carácter multidimensional de la sostenibilidad y del valor logístico. Los resultados también confirman que las percepciones de los clientes sobre las inici…
Contact between the components of a knee prosthesis: numerical and experimental study
2012
The aim of this work is the analysis of the contact area in a knee prosthesis using two different approaches. In particular, the interface between the femoral component and the polyethylene insert has been studied both numerically and experimentally. The interest in studying the contact area is related to the fact that the wear of the polyethylene insert, due to the high contact pressures, represents one of the major causes of failure of the total knee prosthesis. The possibility to evaluate the contact area at different loads and mutual position between femur and tibia is, therefore, of fundamental importance to study the service life of a prosthesis and to improve its performance. The fin…