Quality of cloud services determined by the dynamic management of scheduling models for complex heterogeneous workloads

The quality of services in Cloud Computing (CC) depends on the scheduling strategies selected for processing of the complex workloads in the physical cloud clusters. Using the scheduler of the single type does not guarantee of the optimal mapping of jobs onto cloud resources, especially in the case of the processing of the big data workloads. In this paper, we compare the performances of the cloud schedulers for various combinations of the cloud workloads with different characteristics. We define several scenarios where the proper types of schedulers can be selected from a list of scheduling models implemented in the system, and used to schedule the concrete workloads based on the workloads’ parameters and the feedback on the efficiency of the schedulers. The presented work is the first step in the development and implementation of an automatic intelligent scheduler selection system. In our simple experimental analysis, we confirm the usefulness of such a system in today’s data-intensive cloud computin

Transport properties and low-frequency noise in low-dimensional structures

Les propriétés électriques et physiques de structures à faible dimensionalité ont été étudiées pour des applications dans des domaines divers comme l électronique, les capteurs. La mesure du bruit bruit à basse fréquence est un outil très utile pour obtenir des informations relatives à la dynamique des porteurs, au piègeage des charges ou aux mécanismes de collision. Dans cette thèse, le transport électronique et le bruit basse fréquence mesurés dans des structures à faible dimensionnalité comme les dispositifs multi-grilles (FinFET, JLT ), les nanofils 3D en Si/SiGe, les nanotubes de carbone ou à base de graphène sont présentés. Pour les approches top-down et bottom-up , l impact du bruit est analysé en fonction de la dimensionalité, du type de conduction (volume vs surface), de la contrainte mécanique et de la présence de jonction metal-semiconducteur.Electrical and physical properties of low-dimensional structures have been studied for the various applications such as electronics, sensors, and etc. Low-frequency noise measurement is also a useful technique to give more information for the carrier dynamics correlated to the oxide traps, channel defects, and scattering. In this thesis, the electrical transport and low-frequency noise of low-dimensional structure devices such as multi-gate structures (e.g. FinFETs and Junctionless FETs), 3-D stacked Si/SiGe nanowire FETs, carbon nanotubes, and graphene are presented. From the view point of top-down and bottom-up approaches, the impacts of LF noise are investigated according to the dimensionality, conduction mechanism (surface or volume conduction), strain technique, and metal-semiconductor junctions.SAVOIE-SCD - Bib.électronique (730659901) / SudocGRENOBLE1/INP-Bib.électronique (384210012) / SudocGRENOBLE2/3-Bib.électronique (384219901) / SudocSudocFranceF

Low-frequency noise in junctionless multigate transistors

Low-frequency noise in n-type junctionless multigate transistors was investigated. It can be well understood with the carrier number fluctuations whereas the conduction is mainly limited by the bulk expecting Hooge mobility fluctuations. The trapping/release of charge carriers is related not only to the oxide-semiconductor interface but also to the depleted channel. The volume trap density is in the range of 6-30 x 10(16) cm(-3) eV(-1), which is similar to Si-SiO2 bulk transistors and remarkably lower than in high-k transistors. These results show that the noise in nanowire devices might be affected by additional trapping centers. (C) 2011 American Institute of Physics. (doi:10.1063/1.3569724

Robot-Assisted Radical Cystectomy with Intra-Corporeal Neo-Bladder

The purpose of this chapter is to provide a step-by-step description of the robot-assisted radical cystectomy with an intra-corporeal neo-bladder technique and a recent review of its outcomes. The procedure is also known as anterior pelvic exenteration or cysto-prostatectomy in the case of female or male respectively. Radical cystectomy (RC) is the gold standard treatment for muscle-invasive bladder cancer, but there are also several surgical indications for non-muscle-invasive bladder cancer. In the past years, minimally invasive surgery and the da Vinci system technology have played a major role in this procedure, with description of brand-new techniques and specific approaches for the creation of a continent urinary reservoir. The following chapter provides a detailed description of the robot-assisted radical cystectomy (RARC) with Y-shaped intra-corporeal bladder as well as a literary review of distinct perioperative, functional and oncological outcomes from the available RARC randomized controlled trials. Despite its high cost and complexity, the intra-corporeal technique has become widely popular around the world and is used more frequently each time. The described data in this chapter, demonstrates that morbidity can be reduced whilst simultaneously offer non-inferior oncological results and less intraoperative blood loss in contrast to the open RC approach

The Emergence of Arboriculture in the 1st Millennium BC along the Mediterranean’s “Far West”

This paper presents the history of the introduction and expansion of arboriculture during the 1st millennium BC from the South of the Iberian Peninsula to the South of France. The earliest evidence of arboriculture at the beginning of the 1st millennium hails from the south of the Iberia from where it spread northward along the peninsula’s eastern edge. The different fruits (grape, olive, fig, almond, pomegranate and apple/pear) arrived together in certain areas in spite of uneven distribution and acceptance by local communities. Grape was the crop with the greatest diffusion. The greater diversity of crops in the southern half of the peninsula is also noteworthy. Their development paved the way for a commercial agricultural model in some territories where fruits and their derivatives, such as wine and oil, played vital roles.This paper is an output of the project FRUITCOM “Un nuevo modelo agrícola: frutales, hierro y comercio durante el I milenio A.E.” (CIDEGENT/2019/003), funded by Generalitat Valenciana. This research also received support from the Ministerio de Ciencia, Innovación y Universidades (Movilidad, circulación e intercambio en el llano occidental catalán entre el III y el I milenio ANE, PID2019-110022GB-I00) and from the French National Agency of Research (VINICULTURE project—ANR-16-CE27-0013)

Fe-substituted mullite powders for the in situ synthesis of carbon nanotubes by catalytic chemical vapor deposition

Powders of iron-substituted mullite were prepared by combustion and further calcination in air at different temperatures. A detailed study involving notably Mo¨ssbauer spectroscopy showed that the Fe3+ ions are distributed between the mullite phase and a corundum phase that progressively dissolves into mullite upon the increase in calcination temperature. Carbon nanotube-Fe-mullite nanocomposites were prepared for the first time by a direct method involving a reduction of these powders in H2-CH4 and without any mechanical mixing step. The carbon nanotubes formed by the catalytic decomposition of CH4 on the smallest metal particles are mostly double-walled and multiwalled, although some carbon nanofibers are also observed

Mean ergodicity of weighted composition operators on spaces of holomorphic functions

[EN] Let phi be a self-map of the unit disc D of the complex plane C and let psi be a holomorphic function on D. We investigate the mean ergodicity and power boundedness of the weighted composition operator C-phi,C-psi(f) = psi(f o phi) with symbol phi and multiplier psi on the space H(D). We obtain necessary and sufficient conditions on the symbol phi and on the multiplier psi which characterize when the weighted composition operator is power bounded and (uniformly) mean ergodic. One necessary condition is that the symbol phi has a fixed point in D. If phi is not a rational rotation, the sufficient conditions are related to the modulus of the multiplier on the fixed point of phi. Some of our results are valid in an open connected set U of the complex plane.This research was partially supported by MINECO, Project MTM2013-43540-P. The second and third authors were partially supported by GVA, Project AICO/2016/054.Beltrán Meneu, MJ.; Gómez Collado, MDC.; Jorda Mora, E.; Jornet Casanova, D. (2016). Mean ergodicity of weighted composition operators on spaces of holomorphic functions. Journal of Mathematical Analysis and Applications. 444(2):1640-1651. https://doi.org/10.1016/j.jmaa.2016.07.039S16401651444