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This chapter introduces scheduling of IoT services as an essential element of a cloud computing infrastructure for IoT services. We present an architecture for IoT/cloud convergence, which schedules requests for IoT services and maintains rich metadata about their lifecycle. Accordingly, we illustrate how this scheduling architecture can be used for implementing resource optimizations, including optimization of network bandwidth, storage, and cloud access costs. To this end, we present the implementation of two resource optimization schemes, one based on indirect sensor control and another on caching of IoT services. Finally, we briefly discuss the instantiation of the introduced IoT/cloud system in three distinct IoT applications: the areas of smart cities, manufacturing, and crop management. The presented IoT/Cloud infrastructure is available as open source project, which enables community implementations of additional applications and resource management schemes.

We study plasma flows along selected coronal loops in NOAA Active Region 10926, observed on 3 December 2006 with Hinode'sEUVImaging Spectrograph (EIS). From the shape of the loops traced on intensity images and the Doppler shifts measured along their length we compute their three-dimensional (3D) shape and plasma flow velocity using a simple geometrical model. This calculation was performed for loops visible in the Fe viii 185 Å, Fe x 184 Å, Fe xii 195 Å, Fe xiii 202 Å, and Fe xv 284 Å spectral lines. In most cases the flow is unidirectional from one footpoint to the other but there are also cases of draining motions from the top of the loops to their footpoints. Our results indicate that the same loop may show different flow patterns when observed in different spectral lines, suggesting a dynamically complex rather than a monolithic structure. We have also carried out magnetic extrapolations in the linear force-free field approximation using SOHO/MDI magnetograms, aiming toward a first-order identification of extrapolated magnetic field lines corresponding to the reconstructed loops. In all cases, the best-fit extrapolated lines exhibit left-handed twist (α

Ce travail a pour objet l'etude cinetique de la reaction de l'ethylate de sodium sur l'iodure de methyle dans des melanges ethanol-dioxanne, la determination des constantes de vitesse ki et kp pour differentes teneurs en dioxanne.Il etablit l'absence de correlation simple entre les vitesses observees et les grandeurs classiques derivees de la conductivite des electrolytes (α et Kd ), et met en evidence des phenomenes de solvatation specifique permettant une rationalisation des donnees cinetiques et une interpretation de particularites, en tant que milieux reactionnels, des melanges dioxanne-ethanol.

Ruthenium (III) tris acetylacetonate is an efficient catalyst for the isomerization of O-deuterated alkylvinyl carbinols allowing thus a facile route to the title compounds.

Resume Le sel de Seignette (ANaK) et l'acide tartrique (AH 2 ) sont deux inhibiteurs des plus actifs de la croissance dendritique de l'argent electrolytique provenant de solutions aqueuses acides de nitrate. On cherche a determiner laquelle des trois especes alors presentes en solution (AH 2 , AH - ou A 2- ) est plus particulierement responsable de l'effet inhibiteur observe. Cet effet inhibiteur est caracterise, d'abord qualitativement par l'evolution de la morphologie superficielle des depots examines au microscope a balayage, puis quantitativement par le degre de perfection de leur texture de fibre 〈110〉. On montre que ce degre, determine par diffractometrie de rayons X, ne depend que de la concentration [AH - ] des monoanions tartrate dans l'electrolyte.

A detailed kinetic study of the prototropic rearrangement of the system RMCH 2 CCH⇌RMCHCCH 2 ⇌RMCCCH 3 where M = NR, O, Se is presented. using deuterated substrates the nature of the reactive intermediates and, in the case of M = S, the activation energy-reaction profile are established.

Determination des donnees thermodynamiques d'activation d'une reaction entre le chlorure de benzoyle et les «ions» et «paires ions» engendres par l'ethylate de sodium a 30, 40, 50 et 60°C. Existence d'un point isocinetique a −15°C, laissant prevoir une nucleophilie plus grande des «paires d'ions» aux temperatures inferieures

An improved procedure is described for extremely rapid and efficient oxidation of alcohols, by adding a small quantity of anhydrous acetic acid (AcOH) to pyridinium dichromate (PDC) and freshly activated molecular sieve powder in CH2Cl2 at room temperature.

La differenciation des contributions des « ions » et des « paires d’ions », dans une reaction entre chlorures benzyliques et nucleophiles anioniques, a permis de montrer la possibilite d’etablir des correlations de Hammett avec les constantes de vitesse ki et kρ et de reveler l’existence de deux voies mecanistiques differentes, traduites par des p differents : ρ = + 2,2 pour les « ions » et ρ = – 0,6 pour les « paires d’ions ».