Robust designs for Poisson regression models

We consider the problem of how to construct robust designs for Poisson regression models. An analytical expression is derived for robust designs for first-order Poisson regression models where uncertainty exists in the prior parameter estimates. Given certain constraints in the methodology, it may be necessary to extend the robust designs for implementation in practical experiments. With these extensions, our methodology constructs designs which perform similarly, in terms of estimation, to current techniques, and offers the solution in a more timely manner. We further apply this analytic result to cases where uncertainty exists in the linear predictor. The application of this methodology to practical design problems such as screening experiments is explored. Given the minimal prior knowledge that is usually available when conducting such experiments, it is recommended to derive designs robust across a variety of systems. However, incorporating such uncertainty into the design process can be a computationally intense exercise. Hence, our analytic approach is explored as an alternative

Energy Efficiency of Hybrid-Power HetNets: A Population-like Games Approach

In this paper, a distributed control scheme based on population games is proposed. The controller is in charge of dealing with the energy consumption problem in a Heterogeneous Cellular Network (HetNet) powered by hybrid energy sources (grid and renewable energy) while guaranteeing appropriate quality of service (QoS) level at the same time. Unlike the conventional approach in population games, it considers both atomicity and non-anonymity. Simulation results show that the proposed population-games approach reduces grid consumption by up to about 12% compared to the traditional best-signal level association policy.U.S. Air Force Office of Scientific Research FA9550-17-1-0259Ministerio de Cultura y Deporte DPI2016-76493-C3-3-RMinisterio de Economía y Empresa DPI2017-86918-

The enterocyte proteome of gilthead seabream (Sparus Aurata) acclimated to two salinited conditions

Comunicaciones a congreso

The hepatic proteome of gilthead seabream (Sparus Aurata) acclimated to two salinity conditions

Comunicaciones a congreso

Actuation attacks on constrained linear systems: A set-theoretic analysis

Cuenta con un 2º editor: Incluido en el Volumen 53, Issue 2 Article number 145388This paper considers a constrained discrete-time linear system subject to actuation attacks. The attacks are modelled as false data injections to the system, such that the total input (control input plus injection) satisfies hard input constraints. We establish a sufficient condition under which it is not possible to maintain the states of the system within a compact state constraint set for all possible realizations of the actuation attack. The developed condition is a simple function of the spectral radius of the system, the relative sizes of the input and state constraint sets, and the proportion of the input constraint set allowed to the attacker.Ministerio de Economía y Competitividad (España) DPI2017-86918-RJapan Society for the Promotion of Science PE1604

A product design methodology based on symbiosis between biomimicry, parametric design, and digital fabrication technologies

Las disciplinas bioinformadas estudian la naturaleza para resolver problemas del ser humano e impulsar la innovación, incluyendo o no resultados sostenibles. Por otra parte, las tecnologías de fabricación digital y el diseño paramétrico emergen en las últimas décadas con posibilidades nunca vistas para imitar sistemas naturales y solucionar problemáticas a través del diseño. Este texto presenta una aproximación metodológica para el diseño de productos basada en la simbiosis entre biomimética, diseño paramétrico y tecnologías de fabricación digital. La metodología propone 4 fases: (i) identificación del problema, (ii) selección de referentes biológicos, (iii) diseño, modelación y fabricación digital y (iv) validación del producto. Este texto muestra los dos primeros casos de aplicación metodológica: el primero en la academia y el segundo un workshop en el evento internacional Digital Futures. En conclusión, la metodología requiere mayor cantidad pruebas para mejorar y evolucionar en un proceso iterativo.The bio-informed disciplines are those that study nature to solve problems of the human being and propel innovation, including or not sustainable results. On the other hand, digital fabrication technologies, parametric and associative design have been emerging in last decades with possibilities never seen before; consequently, have enhanced the possibilities of imitating natural systems to solve human problems trough product design. This text presents a product design methodological approach based on symbiosis between biomimicry, parametric design, and digital fabrication technologies. The methodology is proposed in 4 phases:(i) identification of the problem, (ii) selection of biological referents, (iii) design, modeling, and digital fabrication and (iv) product validation. This text shows the first two cases of methodological application: a case in the academy and the second in the Digital Futures Workshop. In conclusion, the methodology requires more testing to improve and evolve in an iterative process

Model-based PI design for irrigation canals with faulty communication networks

A PI design method for faulty networks is provided based on Linear Matrix Inequalities (LMIs). Feedback controllers for irrigation canals are designed based on LMIs, but sparsity constraints are also imposed to make zero the feedback control law elements not corresponding to the tuning PI parameters. Therefore, the design method is halfway between a PI controller and an optimal feedback control law, also providing stability guarantees up to a maximum probability of packet losses. The objective of the downstream controller is to maintain the water levels upstream from each downstream check structure of each canal pool, while gravity-offtake gates satisfy downstream water demands. The proposed approach is tested using the irrigation system of ASCE Test Canal 1 and compared with other tuning methods via simulation. Our results show that the design method can be a useful tool when dealing with control systems under faulty networks

A Bound on the Existence of the Maximum Jointly Invariant Set of Input-Coupled Systems

We present a set-theoretical characterization of a bound on the maximal portion that an agent can cede of its input variable to another agent. By ceding control authority, agents can decompose coupling variables into public and private parts, which is of interest in situations of partial cooperation. In particular, sufficient conditions under which the non-existence of the maximum robust control invariant set is guaranteed are provided, expressed in terms of support functions and the dominant system eigenvalue. Finally, the results are illustrated via stable and unstable example systems with different coupling

Effect of ivermectin on the liver of gilthead seabream Sparus aurata: a proteomic approach

23 p., 2 tablas, 4 figuras y bibliografíaGilthead sea bream Sparus aurata is the most commercialized Mediterranean aquacultured fish species. Ivermectin has recently(experimentally) started to be used to control ectoparasitic infestations in Mediterranean cultured marine fish. The potential hepatotoxicity of ivermectin was investigated in gilthead sea bream juveniles (35g) following oral administration at the recommended dose of 0.2mg kg-1 fish for 10d. Difference Gel Electrophoresis Technology (DIGE) was used to study the effect of this treatment in gilthead sea bream liver protein profile under routine culture conditions. The 2D-DIGE protein maps obtained were analyzed using the DeCyder 6.5 software. The results obtained showed significant changes in the expression of 36 proteins respect to the control group. Among these proteins, six increased in abundance, and 30 decreased. Spot showing differential expression respect to the control were analyzed by mass spectrometry and database search, which resulted in three positive identifications corresponding to hepatic proteins involved in lipid metabolism (apoA-I), oxidative stress responses and energy generation (beta-globin, ATP synthase subunit beta). These proteins have not been previously associated to invermectin effect.This work was funded by projects GV06B-351 “Generalitat Valenciana” and CTM 2006-14279-CO2-01/MAR MEC-FEDER. This research was performed within the framework of a concerted action between Spain and Greece (HG-2004-0016). I. Varó was a recipient of a “Ramón y Cajal” contract at the University of Valencia from the “Ministerio de Educación y Ciencia (Spain)”.Peer reviewe