Search results for "PARTS"

Safer et société : les liaisons dangereuses. Bréviaire à l’usage des parlementaires [libres propos]

2016

Il aura suffi qu'un investisseur chinois achète un peu de notre « grenier à Blé de l’Europe » pour que la FNSAFER s’engouffre et réclame une nouvelle fois l’extension de son droit de préemption sur les parts de sociétés agricoles. Des amendements ont été adoptés, en première lecture, par l’Assemblée nationale, dans le cadre du projet de loi dit Sapin 2.

ERCP : Energy-Efficient and Reliable-Aware Clustering Protocol for Wireless Sensor Networks

2022

Wireless Sensor Networks (WSNs) have been around for over a decade and have been used in many important applications. Energy and reliability are two of the major problems with these kinds of applications. Reliable data delivery is an important issue in WSNs because it is a key part of how well data are sent. At the same time, energy consumption in battery-based sensors is another challenge. Therefore, efficient clustering and routing are techniques that can be used to save sensors energy and guarantee reliable message delivery. With this in mind, this paper develops an energy-efficient and reliable clustering protocol (ERCP) for WSNs. First, an efficient clustering technique is proposed for…

Validation Specimen for Contour Method Extension to Multiple Residual Stress Components

2007

A new theoretical development of the contour method [1], that allow the user to measure the three normal residual stress components on cross sections of a generic mechanical part, is presented. To validate such a theoretical development, a residual stress test specimen was properly designed, fabricated and then tested with different experimental techniques.

U.I.R.D.A. – Unbuilt Italian Rationalism Digital Archive

2018

For twenty years, the architecture of Italian rationalism through the digital modelling has been investigated. Very often, the production of a model and the consequent representation of tridimensional views, in many case studies, as outcome of the research on architecture have been considered. Actually, the digital model, intended as a critical tool, has to be conceived as a ‘starting point' for graphic analysis of architecture and not as the outcome. Indeed, it is associated to other graphics, sometimes not ‘deducted' from the model, useful for the understanding/translation of architecture. The construction of the model is not the construction of a simple image, operation, which is often c…

Standards not that standard

2015

There is a general assent on the key role of standards in Synthetic Biology. In two consecutive letters to this journal, suggestions on the assembly methods for the Registry of standard biological parts have been described. We fully agree with those authors on the need of a more flexible building strategy and we highlight in the present work two major functional challenges standardization efforts have to deal with: the need of both universal and orthogonal behaviors. We provide experimental data that clearly indicate that such engineering requirements should not be taken for granted in Synthetic Biology. Electronic supplementary material The online version of this article (doi:10.1186/s1303…

A novel approach to integration by parts reduction

2015

Integration by parts reduction is a standard component of most modern multi-loop calculations in quantum field theory. We present a novel strategy constructed to overcome the limitations of currently available reduction programs based on Laporta's algorithm. The key idea is to construct algebraic identities from numerical samples obtained from reductions over finite fields. We expect the method to be highly amenable to parallelization, show a low memory footprint during the reduction step, and allow for significantly better run-times.

Scientific and technological approaches for sintering and joining of metallic materials by SPS

2013

The flash sintering technique (commonly known as spark plasma sintering, SPS) generates a craze worldwide. This process allows a powder densification from speeds generally 10 to 100 times higher than those of the traditional sintering techniques. In addition, this allows the synthesis of innovative and original dense materials, with a controlled microstructure, complex shapes and, sometimes large sizes. However, the control of scaling and microstructure homogeneity of parts obtained by such a process requires a perfect knowledge of technical equipment including flash sintering to reduce thermal gradients. Modeling is a valuable aid to achieve the improvement of its control. Another potentia…

Integration by parts on generalized manifolds and applications on quasiregular maps

2016

Nusidawimai szwento Karawimo [Geschichte des heiligen Krieges]

1814

Grāmatā par varonīgo prūšu u.c. cīņām pret Napoleonu. Minēta Leipcigas kauja (Bataille de Leipzig), arī Tautu kauja (Völkerschlacht bei Leipzig, Битва народов), kas bija nozīmīga kauja pret Napoleona Bonaparta spēkiem no 1813. gada 16. oktobra līdz 19. oktobrim. Kauja norisinājās Saksijas karalistē, pie Leipcigas. Tajā Sestā koalīcija (Krievijas Impērija, Austrijas impērija, Prūsijas karaliste un Zviedrija) pieveica Napoleona spēkus un pēc kaujas Napoleons zaudēja kontroli pār teritorijām uz austrumiem no Reinas. Pēc kaujas beidza pastāvēt arī Reinas konfederācija. Grāmatā arī Kristiana Daniela Hasenšteina (Christian Daniel Hassenstein) tulkotas un sarakstītas dziesmas par varonīgajiem cīnī…

Integral Reduction with Kira 2.0 and Finite Field Methods

2021

We present the new version 2.0 of the Feynman integral reduction program Kira and describe the new features. The primary new feature is the reconstruction of the final coefficients in integration-by-parts reductions by means of finite field methods with the help of FireFly. This procedure can be parallelized on computer clusters with MPI. Furthermore, the support for user-provided systems of equations has been significantly improved. This mode provides the flexibility to integrate Kira into projects that employ specialized reduction formulas, direct reduction of amplitudes, or to problems involving linear system of equations not limited to relations among standard Feynman integrals. We show…