نتایج جستجو برای: nappe separation

تعداد نتایج: 123717  

2017
Anh Huy Phan Petr Tichavský Andrzej Cichocki

This paper deals with estimation of structured signals such as damped sinusoids, exponentials, polynomials, and their products from single channel data. It is shown that building tensors from this kind of data results in tensors with hidden block structure which can be recovered through the tensor diagonalization. The tensor diagonalization means multiplying tensors by several matrices along it...

Journal: :Terra Nova 2021

We describe a singular structure in Upper Cretaceous rocks of the Eaux-Chaudes massif western Pyrenees, consisting kilometre-scale fold nappe with sheared overturned limb. High ductile strain attests deformation style rarely reported for alpine and peak temperature carbonates is estimated by Raman spectroscopy carbonaceous material palaeothermometry lower greenschist facies (>300°C). The normal...

Journal: :Journal of Metamorphic Geology 2021

The collision of Baltica and Laurentia during the Caledonian Orogeny happened at c. 400–420 Ma. However, subduction processes also took place before this main collisional phase tectonic history these is still not fully resolved. Seve Nappe Complex in Sweden has recorded earlier phases. Norrbotten (North Swedish Caledonides) comprises four superimposed nappes emplaced by eastward thrusting (from...

Journal: :International Journal of Earth Sciences 2021

Abstract The Late Palaeozoic–Early Mesozoic Tethyan development of the Eastern Mediterranean region remains debatable, especially in Turkey, where alternative northward and southward subduction hypotheses are proposed. Relevant to this debate, new whole-rock geochemical data provided here for early Carboniferous (Late Tournaisian-Late Visean; c. 340–350 Ma) tuffaceous sedimentary rocks within Ç...

Journal: :Acta Geologica Polonica 2023

During the late Oligocene to early Miocene residual Magura Basin was located along front of Pieniny Klippen Belt (PKB). This basin supplied with clastic material derived from a south-eastern direction. In Male (Little) Mts. in Poland, Oligocene/ Kremna Fm. Nappe (Krynica subunit) occurs both PKB as well tectonic windows within PKB. Lenses exotic conglomerates contain frequent clasts Mesozoic li...

2005
Enrique Robledo-Arnuncio Biing-Hwang Juang

One of the most important problems in frequency domain blind source separation is the inconsistency across frequency in the permutation of the source estimates. In this paper we present a new algorithm that simultaneously diagonalizes the intrafrequency and the inter-frequency correlation matrices of the source estimates. Experimental results, using speech signals, reveal that the algorithm ach...

2001
Frédéric Abrard Yannick Deville

This paper deals with the blind source separation problem in convolutive mixtures when the sources are colored processes. In this case, classical methods first extract the innovation processes of the sources and then color them, which yields two successive filter approximations. On the contrary, we propose here a new concept allowing to directly extract estimates of the colored sources in one s...

2012
Ibrahim Missaoui Zied Lachiri

Source separation by cepstral smoothing of binary masks In this paper, we propose a separation system of speech signals from two convolutive mixtures. The suggested system is based on the combination of blind source separation technique with a time-frequency masking procedure, followed by a smoothing cepstral. Indeed, after separation of signal sources, the estimated binary masks undergo a ceps...

2001
Ingo Schießl

Analyse können selbst die signalschwachen " single condition images " berechnet werden ohne Modellannahmenüber den Mischprozeß oder die modulare Organisatzion der Sehrinde zu machen.

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