NOTE! This site uses cookies and similar technologies.

If you not change browser settings, you agree to it. Learn more

I understand

Learn more about cookies at :

March 19, 2018 | World-first in non-destructive testing of flexible subsea risers

cnd 03 2018 250

List, a CEA Tech institute, helped to develop a particularly innovative embedded system that combines several non-destructive testing technologies. TechnipFMC, a provider of services to the oil and gas industry, will use the system to inspect flexible subsea risers.

Non-destructive testing techniques are not well-suited to complex parts with multi-layered structures like subsea pipes. Until now, there has been no reliable means of inspecting flexible subsea risers with multiple layers of steel rebar, for example. The IRIS (In-Service Riser Inspection System) R&D project, led by List in partnership with TechnipFMC, is combining several technologies to enable the detection of any defects in the various layers of reinforcements (breaks, cracks in the thermoplastic ducts, etc.) in real time.

An ultrasonic NDT method developed by TechnipFMC is used to detect defects in the outer layer. This method is coupled with an electromagnetic wave technique developed by List to inspect the metal reinforcements. A sensor was designed and patented specifically for the project. It enables the NDT tools to see "through" the outer reinforcements to the inner ones. Another sensor uses capacitive measurement techniques to determine whether there is any water inside the thermoplastic ducts. Ultimately, a marine-grade X-ray source will be added to the system, giving it tomography capabilities.

The entire package will be integrated into an ROV (remotely-operated vehicle)-type system launched from the deck of a supply vessel and able to reach depths of 2,000 meters. The ROV will lock onto and move along the flexible riser independently.

TechnipFMC plans to start using the new NDT system for several offshore oil and gas projects this year.

*List earned the prestigious Institut Carnot seal in 2006 (Institut Carnot TN@UPSaclay).



March 16, 2018 | Structural Health Monitoring (SHM): a pioneering initiative

SHM 1France’s first National Structural Health Monitoring Day was held on Thursday, March 15 at Digiteo Saclay. The purpose of the event was to get stakeholders in SHM technologies and markets thinking about ways to effectively support development in this emerging field.

Structural Health Monitoring, or SHM, leverages integrated sensors to give structures smart capabilities for the purposes of detecting defects and predicting failures. SHM can reduce maintenance costs, limit the downtime of critical industrial components and infrastructures, and produce more reliable diagnostics and predictions than conventional methods.

SHM draws on know-how in a variety of disciplines: materials, non-destructive testing (NDT), sensors, embedded systems, and communications networks—but also data analysis and modeling. SHM can be used by virtually any industry—from aeronautics and civil engineering to energy and more—and is closely aligned with industry’s current shifts towards the digitization of processes and artificial intelligence.

The world’s first SHM systems have now made it out of the lab and onto the market.[1] In France, research labs need targeted support to transform their innovations into marketable solutions.

The March 15 event brought in more than 100 people with a broad range of backgrounds spanning academic research and industry. One of the key take-aways of the day was a shared commitment to creating a professional association to promote SHM. List[2], a CEA Tech institute, and IFSTAR, who co-organized the event with the support of Precend and COFREND, plan to continue to work together to build on the momentum created on Structural Health Monitoring Day.

[1] The first-ever SHM system was certified for the aeronautics industry in 2016; Permasense, a spinoff of Imperial College London that developed a wireless corrosion monitoring system for high-temperature pipelines, was acquired in 2017 at a high valuation.

[2] List earned the prestigious Institut Carnot seal in 2006 (Institut Carnot TN@UPSaclay).



March 12, 2018 | Ambient intelligence: MobileMii gets more advanced features

mobile mii 250List*, a CEA Tech institute, recently unveiled some advanced new features added to its MobileMii Smart Home ambient intelligence platform, which can now recognize activities in addition to actions. These capabilities will create opportunities in smart home automation and in-home monitoring for assisted living applications, for example.

The first MobileMii platform, released two years ago, could detect the behavior of people in their homes in real time, using location and posture to identify specific actions. The platform recently got some advanced new features. It now uses state-of-the-art video analysis to identify typical household activities like cleaning, cooking, eating a meal, working, and more.

The new features leverage machine learning techniques entailing the statistical analysis of different activities in a database of 45-minute videos produced specifically for the project. Around 50 volunteers performed a range of predetermined activities so that the videos could capture variations in a given task from one person to another. The initial prototype—the only one of its kind in the world—is already performing very well, with a 75% successful-recognition rate based on the analysis of data from a single camera.

The research, which is ongoing, is now focusing on improvements to the algorithm, the integration of object recognition, and higher-level reasoning. The innovation could be used in in-home services, an application currently being investigated under the ITEA3 Emospaces project.

*List earned the prestigious Institut Carnot seal in 2006 (Institut Carnot TN@UPSaclay).



March 1, 2018 | Advances in the calibration of short-life radiopharmaceuticals

radio pharma list 250LNHB, a laboratory of List*, a CEA Tech institute, helped develop a transportable primary calibration instrument for radiopharmaceuticals.

The legally-required dosage tests for diagnostic and therapeutic radiopharmaceuticals are conducted directly at LNHB. However, novel solutions must be found for new compounds with very short half-lives. Some of these compounds—like 15O—must be used within five minutes after they are manufactured, making it impossible to send them to the lab for testing. List has developed a miniature measurement instrument to test these radiopharmaceuticals right where they will be used, at the hospital.

The instrument—a liquid scintillation counter made up of three commercially-available miniature photomultiplier tubes—provides a primary measurement of a sample's activity. The detection yield is arrived at deductively from the probability that the photons emitted by disintegration will be detected by two (or three) of the tubes simultaneously. This method is usually used by national radioactivity metrology labs but with non-transportable equipment.

The potential applications for the miniature counter reach beyond testing therapeutic compounds. It could be used to compare primary standards across borders for substances that cannot be shipped internationally for safety reasons. And, more broadly, the method can be used for any situation in which an on-site measurement is required.

*List earned the prestigious Institut Carnot seal in 2006 (Institut Carnot TN@UPSaclay).



February 9, 2018 | Digital technology for all: Educational video produced by List researchers wins contest

vidéo concours listThe French Society for Computer Science (SIF) recently held its #ScienceInfoStream video contest. The challenge? To explain a computer science concept in an entertaining and easy-to-understand video! List’s video* used human puzzle pieces to compare several computer programming strategies to see which one was the most efficient at solving a problem. A total of 40 List researchers volunteered to play virtual resources in the video.

The video, titled "Human Resources", won first prize at an award ceremony held at Paris science museum Palais de la découverte on January 31, 2018 during the French Society for Computer Science (SIF) conference.

*Shot, directed, and edited with help from the CEA Paris-Saclay film club