Université de Lorraine

Co-production of active char and hydrogen from Algerian Date Palm Spikelet: Mass and energy balance based on experimental data

The industrial deployment of green hydrogen production via biomass gasification is still constrained by high feedstock costs and process complexity. In particular, tar formation in the syngas requires costly gas-cleaning operations and reduces the lifetime of hydrogen separation...

Modeling of gas-water transport in the porous transport layer of a proton exchange membrane electrolyzer

In this work, the mechanism of gas invasion into a saturated thin porous medium, specifically the Porous Transport Layer used in a Proton Exchange Membrane electrolyzer, is investigated. The phase-field model based on the Cahn-Hilliard theory is employed to capture the dynamics o...

Micromechanical Insights Into the Cyclic Behavior of Fault‐Valve Systems

Abstract Cyclic fluid pressurization can promote repeated fault reactivation and transient permeability changes, a behavior often discussed within the fault‐valve concept in which faults alternate between acting as hydraulic barriers and conduits. To investigate the micromechanic...

Intermittent or Continuous Renal-Replacement Therapy in Acute Kidney Injury

BackgroundThe preferred method of renal-replacement therapy for acute kidney injury in critically ill patients remains uncertain. MethodsIn this multicenter, open-label, noninferiority trial, we randomly assigned critically ill adults with acute kidney injury who had indications...

Reflector‐Free, Highly Confined Love‐Like SAWs Enabled by a Phononic Metasurface for Real‐Time Monitoring of Cell Dynamics

ABSTRACT Surface acoustic wave (SAW) devices are widely used in sensing and biosensing but generally suffer from strong attenuation in liquid environments. Conventional approaches rely on reflectors to reduce these losses, yet these components remain difficult to optimize: limite...

Towards an Instagram research methodology for geotagged data: Theoretical and qualitative perspectives for multimodality studies

Instagram research has expanded rapidly across sociolinguistics and social semiotics, yet few replicable models exist for conducting robust analyses of its data. In this vein, I propose a qualitative approach to Instagram research that foregrounds the role of platform affordances...

Influence of an occupational soft-back exoskeleton on lumbar loads and neuromuscular stress during a simulated manual order picking task

Soft-back exoskeletons are known to reduce back muscle activity during lifting tasks, especially in laboratory settings. However, limited research exists concerning the impact of back-support exoskeletons on lumbar loads in more complex workplace tasks. This study aimed to assess...

A ribosomal pseudouridine drives an oncogenic translation program

Dynamic ribosome heterogeneity has emerged as a potential layer of translational regulation, but whether variation in ribosomal RNA (rRNA) modification stoichiometry can selectively control the translation of mRNAs with shared encoded features remains unclear. Here we show that S...

New quantitative unique continuation result for elliptic equations

We prove a new quantitative unique continuation result for elliptic equations from Cauchy data. We provide a simple and direct proof based only on a Carleman inequality. Similar result for the Stokes equation is also shown.

Execution-Time Opacity in (Controllable) Timed Automata is Hard

International audience

A New Analysis of the Mechanics of Fixed-Plug Tube Drawing with Application on a Low Carbon Steel Tube

Knowledge of the deformations that occur during the plastic forming of metals and the necessary forces is of key importance in engineering. The Fixed-Plug Tube Drawing (FPTD) process permits reductions of the diameter and the wall thickness of a tube to the desired geometry. In t...

Advances in 3D Bioprinting for Breast Cancer Modeling: Tumor Microenvironment, Metastasis, and Drug Screening

The tumor microenvironment (TME) is a complex and heterogeneous milieu encompassing biological and biochemical events and diverse physical, chemical, and mechanical interactions between tumor and stromal cells. This heterogeneity plays a pivotal role in regulating tumor progressi...

Boundary regularity for the polyharmonic Dirichlet problem

In this paper we prove that any solution of the m -polyharmonic Poisson equation in a Reifenberg-flat domain with homogeneous Dirichlet boundary condition, is 𝒞 m - 1 , α regular up to the boundary. To achieve this result we extend the Nirenberg method of translations to operator...

A quantitative methodology for analysing physical damage and recovery dynamics from concurrent and consecutive hazards: forensic insights from Puerto Rico

Space and time play a crucial role in multi-hazard impact assessment. When two or more natural hazards occur simultaneously or in sequence at the same location, the physical integrity of assets and infrastructures can be compromised, and the resulting damage can be greater than t...

Deep binarized photonic reservoir computing for ultrafast multimedia signal processing

Abstract We present a deep photonic neural network architecture based on ultrafast binary optical modulation using a digital micromirror device (DMD), optical scattering in a random medium, high-speed photodetection with a CMOS sensor, and a time-multiplexed multilayer structure....

Thermodegradation kinetics of hemicelluloses, cellulose, and lignin: A review of mechanistic interpretation and hybrid predictive frameworks

Understanding the thermodegradation kinetics of individual lignocellulosic components is essential for resolving inconsistencies in biomass decomposition modeling and improving predictive accuracy. This review aims to: (1) compare the kinetic models of different lignocellulosic c...

Inferring the perennial biomass and phytoremediation potential of thirty-one woody species from large phytomanagement field trials

Growing woody biomass on trace element-contaminated marginal lands is a promising phytomanagement strategy, provided that species combine high productivity with appropriate contaminant accumulation profiles. In this study, we evaluated the five-year field performance and phytoman...

Per- and polyfluoroalkyl substances in occupational settings: a review

Per- and polyfluoroalkyl substances (PFAS) are a large family of synthetic, persistent chemicals that are used extensively in various consumer products and industrial applications, yet there is currently no specific regulations in occupational settings. Here review the toxicity a...

End-of-induction circulating tumor DNA outperforms conventional cellular MRD for predicting early progression in follicular lymphoma: an ancillary study of the RELEVANCE randomized trial

In this ancillary study of the RELEVANCE phase III trial (NCT01650701), we performed the first direct intra-patient comparison of circulating tumor DNA (ctDNA)-based versus cellular t( BCL2 / JH ) translocation-based MRD at end of induction (EOI) in 278 patients with advanced FL,...

TP-Ring and ZN-Ring Systems Allow Efficient Protein Clamping, Solubilization and Stabilization

Abstract Improving recombinant protein stability remains a central challenge in biotechnology, as many proteins exhibit limited robustness during production and use. Here, we introduce two intramolecular “clamping” systems, termed ZN-ring and TP-ring, that exploit ultrastable non...