Mobilidade político-religiosa na vida de Jerônimo de Stridon

Entre as várias formas existentes de mobilidade no âmbito histórico, apresentamos neste artigo sobretudo a mobilidade política e religiosa na vida de um personagem que viveu no século IV e V d.C.: Jerônimo de Stridon. A sua atuação enquanto homem altamente erudito, produtor de diversas obras cristãs, as suas extensas viagens por terras ocidentais e orientais, a assunção de cargos importantes na sociedade romano-helenística e as pessoas com as quais conviveu, apontam para uma forte movimentação em sua trajetória, característica do período em questão, a Antiguidade Tardia. O percurso de Jerônimo enquanto um indivíduo híbrido - cristão devoto de formação clássica pagã, e homem político e religioso atuante em seu contexto, representam as particularidades da época tardo-antiga romano-oriental, sendo a mais importante, ao nosso ver, a intensa efervescência de ideias dentro de um panorama de transformações e readaptações.Palavras-chave: Jerônimo de Stridon, Mobilidade político-religiosa, Antiguidade Tardia. AbstractAmong the many existing ways of mobility in the historical ambit, in this article we present mainly the political and religious mobility into the life of a person who lived in the IV and V centuries b.C.: Jerome of Stridon. His acting as highly erudite man, writer of many christian works, his extense travels in western and eastern lands, the assumption in important functions in the roman-helenical society and the people he lived with, point to a strong movimentation in his trajectory, characteristic of the period in point, the Late Antiquity. Jerome’s path as a hybrid individual – devout christian with a classic pagan formation, and active political and religious man on his context, represent the particularities of the late-ancient roman-oriental age, being the most important, in our perspective, the intense effervescence of ideas inside of a panorama of transformations and readaptations.Key-words: Jerome of Stridon, Political-religious mobility, Late Antiquity.

Trajectory characteristic analysis influenced by initial state errors for long-range vehicles

The initial state errors, caused by the Earth’s un-homogeneity through the leveling and alignment of an inertial platform before launching a long-range vehicle, will bring about remarkable flight state deviations and fall point deviations by flight dynamics. In order to analyze the propagation characteristics of the initial state errors and rapidly estimate their influence magnitude, an analytical propagation model of trajectory design is deduced by employing state space perturbation theory in nominal launch coordinate system. Then, propagation matrices of engine-cutoff state deviations and fall point deviations are obtained. In the simulations, deviations of engine-cutoff and fall point are computed in the case of a fixed launch azimuth, different launch azimuths and different launch points. Next, propagation regularities of the initial state errors are analyzed from the launch point to the engine-cutoff as well as to fall point. Conclusions are as follows: (1) the estimation accuracy of flight states deviations during boost phase will be distinctly enhanced when considering the force term deviations; (2) in the case of different launch azimuths, position and velocity deviations of engine-cutoff in the x, y directions and longitudinal deviation of fall point are symmetrical at the azimuth of 45° where these deviations are maximum. Comparatively, position and velocity deviations of engine-cutoff in the z direction and lateral deviation of fall point are symmetrical at the azimuth of −45°; (3) the proposed analytical propagation model of the initial state errors has a high estimation accuracy within the error percentage of 2%, which can improve computational efficiency by 100 times and is more suitable for multiple simulation scenarios.

Simulation on Three Dimensional Water-Exit Trajectory of Submarine Launched Missile

Cool Launch project is an important launch mode of submarine launched missile, the water-exit trajectory characteristic of the missile in launching process becomes to research focus. Model of three dimensional water-exit trajectory of submarine launched missile was built based on dynamic mesh technique and simulation operation was carried out to obtain the characteristics of water-exit trajectory & attitude. The method adopted in the establishment of the model and the result has provided references to the research of water-exit trajectory.

Low-grade metamorphism and accretion tectonics: Southern Uplands terrain, Scotland

Previous studies of low-grade metamorphism in the Southern Uplands accretionary terrain indicated prehnite-pumpellyite facies/anchizone conditions developed throughout the area, except for local preservation of trench-slope sediments and an accreted seamount at zeolite facies/advanced diagenetic grade. New graptolite reflectance data are presented that show a general northward increase in temperature in the Southern Uplands. The results from two cross-strike traverses in the southern and central belts in contemporaneous sequences, using illite crystallinity, illite lateral spacing (bo) , and graptolite reflectance, indicate the development of systematic accretion-related low-grade metamorphism. Well-developed and constant anchizone conditions occur throughout the NE (Langholm) traverse, associated with common, F1 accretion-related folding and a regionally penetrative S1 cleavage. In the SW (Kirkcudbright) traverse, however, the youngest, last accreted packets are preserved at a transitional diagenetic stage and lack a penetrative S1 cleavage. Illite crystallinity, graptolite reflectance, and bo increase systematically northward through earlier accreted packets, reaching values of the NE traverse only at the northern end. The concomitant increase of bo with illite crystallinity suggests the relatively high P-low T trajectory characteristic of subduction zones. Integration of metamorphic and structural data relates increasing intensity of aceretion-related F1 folding, developmertt of S1 fabric, and onset of later fold phases to grade of metamorphism and structural level within the accretionary pile.