Given a complex projective manifold X and divisor D with normal crossings, we say that the logarithmic tangent bundle $$T_X(-\hbox {log}\, D)$$ is R-flat if its pull-back to normalization of any rational curve contained in trivial vector bundle. If moreover $$-(K_X+D)$$ nef, then log canonical $$K_X+D$$ torsion maximally rationally chain connected fibration turns out be smooth locally typical f...

Starting from the data of a nonsingular complex projective toric variety, we define an associated notion co-Higgs bundle. We provide Lie-theoretic classification these objects by studying interaction between Klyachko's fan filtration and fiber bundle at closed point in open orbit torus action. This can be interpreted, under certain conditions, as construction coarse moduli scheme bundles any ra...

In this paper, we develop the theory of singular hermitian metrics on vector bundles. As an application, give a structure theorem projective manifold $X$ with pseudo-effective tangent bundle: admits smooth fibration $X \to Y$ to flat $Y$ such that its general fiber is rationally connected. Moreover, by applying theorem, classify all minimal surfaces bundle and study non-minimal surfaces, which ...

The moduli space of holomorphic fiber bundles M n (Σ) over a compact Riemann surface Σ is considered. A formula for the regularised determinant and an other for the symplectic form at trivial bundle are proposed.

Artificial vision, in spite of all theoretical and practical progress accomplished during last thirty years, still cannot be employed technically in some hazardous and strong industrial areas, where conditions are such that cameras would not operate properly. Alternatives on such problem are the quite recent IP65 and IP67 industrial cameras, and associated connectors, protected by an anticorros...

This work aims to investigate the physical and mechanical properties of sisal fiber yarn Moroccan origin. The cellulosic non-cellulosic constituents were identified by FTIR spectroscopy. thermal studied thermogravimetric analysis. hydrophilicity was evaluated contact angle. results show that has a low stability. analyzed Impregnated Fiber Bundle Test (IFBT) method porosity impregnated yarns twi...

In this work, we propose to use fiber tracking in order to analyze and quantify the state of the pyramidal tracts in patients affected by tumors. We introduce a framework that includes an automatic method to obtain the fibers involved in the pyramidal tract of any subject, in order to compare robustly fiber bundles affected by tumors with healthy fiber tracts from control subjects and also to q...

The purpose of this paper is to measure the variability of a population of white matter fiber bundles without imposing unrealistic geometrical priors. In this respect, modeling fiber bundles as currents seems particularly relevant, as it gives a metric between bundles which relies neither on point nor on fiber correspondences and which is robust to fiber interruption. First, this metric is incl...

Fiber bundling refers to the process of winding hollow polypropylene fibers onto the central core of a membrane oxygenator. Identifying the various bundling techniques serves to facilitate the clinician's understanding of unique device characteristics and the subsequent manufacturing process. This technical information has been voluntarily provided by the product managers and engineers of curre...

OBJECTIVES The presence of retinal nerve fiber layer (RNFL) split bundles was recently described in normal eyes scanned using scanning laser polarimetry and by histologic studies. Split bundles may resemble RNFL loss in healthy eyes. The aim of our study was to determine the prevalence of nerve fiber layer split bundles in healthy people. MATERIALS AND METHODS We imaged 718 eyes of 359 health...