This paper surveys the risks brought by multitenancy in software platforms, along with the most prominent solutions proposed to address them. A multitenant platform hosts and executes software from several users (tenants). The platform must ensure that no malicious or faulty code from any tenant can interfere with the normal execution of other users' code or with the platform itself. This secur...

RÉSUMÉ. L’usage généralisé d’Internet et l’intelligence croissante des équipements permettent le développement de services interactifs coopérant avec les systèmes d’information de l’entreprise. Développer et déployer ces services est un défi à la fois sur le plan des modèles et outils de construction, et sur celui des services systèmes sous-jacents (ou intergiciels). Il est aujourd’hui reconnu ...

Adult male Sprague-Dawley rats weighing 175 to 250 grams were injected intravenously with 0.5-0.8 ml. of a four-hour culture of Escherichia coli (containing 4-7 x 108 organisms/ml.) in beef heart infusion broth. This particular strain was originally isolated from the urine of a patient with pyelonephritis and has been fully described elsewhere.' It is known that this organism is trapped by the ...

RÉSUMÉ. L’étude et la conception de systèmes multi-robots (ou multi-agents situés) nécessite des outils de simulations performants et évolutifs. Nos travaux d’applications de modèles de coopération et d’apprentissage nous ont menés à concevoir une plate-forme de simulation spécialement dédiée à l’étude des systèmes multi-robots autonomes. Pour ce faire, nous nous sommes appuyés sur les outils d...

a comparison of buckling analysis of the nanoplate and nanocomposite plate with central square hole embedded in winkler foundation is presented in this article. in order to enhance mechanical properties of nanoplate with central cut out, carbon nano tubes (cnts) are applied as uniform distribution (ud) through thickness direction. in order to define the shape function of plate with square cut o...

the aim of this study was to determine physicochemical, microbial properties and antioxidant activityof fermented camel milk (chal) and introduce it as a functional food. the protein content of thesamples was determined using kjeldahl method and total dry matter using oven drying method. theamount of fat content with gerber method and ph was measured using a ph meter. antioxidantactivity was al...

abstract wenner direct contact method is a method of estimating apparent electrical conductivity (eca) of agricultural soils in situ. this method can be affected by factors such as quality of electrodes in contact with soil, type of employed electric current, moisture content, clay content and compaction of soil. in this research, the effect of electrode type (rod and plate) and electric curren...

in this study, the vibration of cracked plates is investigated using the differential quadrature method and experimental modal analysis. the crack, which is assumed to be open, is modeled by the extended rotational spring. with its finite length, the crack divides the plate into six segments. then, the differential quadrature is applied to the governing differential equations of motion and the ...