AUTOMATIC BLOB FITTING IN COMPREHENSIVE TWO-DIMENSIONAL GAS CHROMATOGRAPHY IMAGES

Two-dimensional gas chromatography is a recent technology which is particularly efficient for detailed molecular analysis. However, due to the novelty of the method and the lack of automated analysis tools, quantitative data processing is often performed manually. Hence, results are strongly user-dependent, time consuming and, consequently, relatively inaccurate In this paper, we extend conventional techniques for signal analysis by utilizing specific characteristics of chromatographic data and by developing new methods for estimating the quantitative contribution of chemical regions from the produced images. Data-driven information is retrieved from chemical quantitative analysis based on Savitzky-Golay automatic peaks location determination, which increases both the processing speed and the analysis efficiency and improves our confidence in experimental repeatability. 1

Track D Social Science, Human Rights and Political Science

Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/138414/1/jia218442.pd

GWTC-2.1: Deep extended catalog of compact binary coalescences observed by LIGO and Virgo during the first half of the third observing run

The second Gravitational-Wave Transient Catalog, GWTC-2, reported on 39 compact binary coalescences observed by the Advanced LIGO and Advanced Virgo detectors between 1 April 2019 15:00 UTC and 1 October 2019 15:00 UTC. Here, we present GWTC-2.1, which reports on a deeper list of candidate events observed over the same period. We analyze the final version of the strain data over this period with improved calibration and better subtraction of excess noise, which has been publicly released. We employ three matched-filter search pipelines for candidate identification, and estimate the probability of astrophysical origin for each candidate event. While GWTC-2 used a false alarm rate threshold of 2 per year, we include in GWTC-2.1, 1201 candidates that pass a false alarm rate threshold of 2 per day. We calculate the source properties of a subset of 44 high-significance candidates that have a probability of astrophysical origin greater than 0.5. Of these candidates, 36 have been reported in GWTC-2. We also calculate updated source properties for all binary block hole events previously reported in GWTC-1. If the 8 additional high-significance candidates presented here are astrophysical, the mass range of events that are unambiguously identified as binary black holes (both objects \geq 3M_\odot) is increased compared to GWTC-2, with total masses from \sim 14M_\odot for GW190924_021846 to \sim 182M_\odot for GW190426_190642. Source properties calculated using our default prior suggest that the primary components of two new candidate events (GW190403_051519 and GW190426_190642) fall in the mass gap predicted by pair-instability supernova theory. We also expand the population of binaries with significantly asymmetric mass ratios reported in GWTC-2 by an additional two events (the mass ratio is less than 0.65 and 0.44 at 90% probability for GW190403_051519 and GW190917_114630 respectively), and find that 2 of the 8 new events have effective inspiral spins \chi_\mathrm{eff} > 0 (at 90\% credibility), while no binary is consistent with \chi_\mathrm{eff} \lt 0 at the same significance. We provide updated estimates for rates of binary black hole and binary neutron star coalescence in the local Universe

Comparing hydrocracking models : continuous lumping vs. single events.

International audienceDevelopment of models for industrial hydrocrackers has received a great amount of attention by the scientific community over the past decades. Two fundamentally different modelling approaches are compared in this paper: a continuous lumping model with three families (paraffins, naphthenes, and aromatics) and a single events microkinetic model. The aim is to demonstrate the differences in the capabilities of the two modelling frameworks. Both models are capable of simulating experimental data from hydrocracking of a pre-treated Vacuum Gas Oil in a pilot plant at industrial conditions. The continuous lumping model provides better results of the macroscopic effluent characteristics, such as yield structure and PNA (Paraffin, Naphthene, Aromatic) distribution in the middle distillate cut. It requires only the feed SIMDIS (Simulated Distillation) and PNA composition to be known. The single events model, on the other hand, provides information which is not available in a simple continuous lumping model. An analysis of the reaction kinetics of paraffins and mono-naphthenes is performed to demonstrate this aspect. The single events model is far more complex and computationally expensive than the continuous lumping model. In conclusion, the two approaches should be considered complementary rather than competitive. In conjunction, they can be used to balance the drawbacks of each individual modelling approac

Integration of an Informatics System in a High Throughput Experimentation. Description of a Global Framework Illustrated Through Several Examples Intégration informatique des outils d’expérimentation haut débit. Présentation d’une architecture globale via plusieurs exemples

High Throughput Experimentation (HTE) is a rapidly expanding field. However, the productivity gains obtained via the synthesis or parallel testing of catalysts may be lost due to poor data management (numerous manual inputs, information difficult to access, etc.). A global framework has then been developed. It includes the HTE pilot plants in the global information system. It produces dedicated computer tools offering spectacular time savings in the operation of HTE units, information storage and rapid extraction of relevant information. To optimize the productivity of engineers, Excel has been included in the system by adding specific features in order to treat it as an industrial tool (development of additional modules, update of modules, etc.). The success obtained by setting up the information system is largely due to the chosen development method. An Agile method (Agile Alliance (2012) http://www.agilealliance.org/the-alliancel)[1] was chosen since close collaboration between the computer specialists and the chemist engineers is essential. Rather than a global and precise description of the framework which might be boring and tedious, the global framework is presented through 3 examples: scheduling experiments applied to zeolite synthesis; data management (storage and access); real application to pilot plant: dedicated interfaces to pilot and supervise HTE pilot plants, comparison of tests runs coming from several pilot plants. L’Expérimentation Haut Débit (EHD) est un domaine en plein essor. Cependant, les gains de productivité obtenus via la synthèse ou le test parallélisé de catalyseurs peuvent être annihilés par une mauvaise gestion de données (nombreuses saisies manuelles, difficulté d’accès à l’information, etc.). Dans ce document, une nouvelle architecture permettant d’intégrer les unités EHD dans un système d’information global est présentée. Des outils informatiques dédiés ont été développés. Ils permettent des gains de temps spectaculaires dans la conduite des unités EHD, le stockage des données et l’extraction rapide des informations pertinentes. L’approche retenue a été guidée par une approche Agile (Agile Alliance (2012) http://www. agilealliance.org/the-alliance/) [1] basée sur une très forte collaboration entre les chimistes et les informaticiens. Excel, l’outil principal des chimistes, a été positionné au coeur du système d’information avec des liens bidirectionnels (entrée/sortie) avec les bases de données et les différentes unités pilotes. Plutôt qu’une description globale du système d’information qui serait longue et fastidieuse, le framework est présenté via 3 exemples principaux : planification de données en utilisant des outils de gestion de production; gestion optimisée des données (stockage, requêtes), analyse de données; exemples d’application sur des unités pilotes : développements d’interfaces dédiées pour la conduite, le monitoring des unités et l’exploitation multi runs et multi unités pilotes

Model Based Diagnostic Module for a FCC Pilot Plant

International audienceThis paper presents a diagnostic module developed by IFP and tested off-line on a FCC (Fluid Catalytic Cracking) pilot plant. The method uses four successive complementary techniques. They enable to go step by step from the observations to a sentence in natural language describing the faults. First, a quantitative causal model is elaborated from a quantitative behavioural model. Causality is obtained from the structure of each equation. Then, global and local alarms are generated using residuals (differences between measures and outputs of the model) and fuzzy logic reasoning. Then, a hitting set algorithm is applied to determine sets of components or equipment which are suspected to have an abnormal behaviour. Finally, expert human operator knowledge about those components is used to identify the fault(s) and produce messages for the operators. This software is currently tested off-line on the FCC pilot plant at IFP. The performance of the diagnostic module is illustrated on four practical scenarios of abnormal behaviour. This work is conducted as part of the CHEM EC funding project

The 1970s Moment in Sexual Politics

Confronting the difficulty of situating the political action of feminists, homosexuals and lesbians in the historical sequence of the 1968’s, sometimes improperly linked to the events of May 68, sometimes apprehended as cropping up in the wake of the “68’s moment”, research for new paradigms seems necessary. This article, far from pretending to resume the political experience of the 70’s or to show the complexity of the homosexual, gay and lesbian, militant scene, aims at defining the sexual moment of the 70’s as a specific historical moment, inscribed in the sequence of 1968, but springing from the logic of its proper actions. The identity dissidence in particular forms a militant practice founded on the identity experience as a form of subjective appropriation of objective signification, that is to say as a daily job of composition, linking the political structures of traditional militantism with social structures of sexuality