Compiègne – Camp de Royallieu

Identifiant de l'opération archéologique : 9223 Date de l'opération : 2007 (SD) L’opération de sondage mise en œuvre par le service départemental d’archéologie du département de l’Oise, à la demande de la ville de Compiègne, dans l’ancien camp d’internement de Royallieu à Compiègne, a permis d’identifier un tunnel d’évasion utilisé, par dix-neuf internés, lors d’une première évasion en 1942 et treize lors d’une seconde en 1944. Un deuxième tunnel a été observé mais aucun document historique n..

Compiègne – Camp de Royallieu

Identifiant de l'opération archéologique : 9223 Date de l'opération : 2007 (SD) L’opération de sondage mise en œuvre par le service départemental d’archéologie du département de l’Oise, à la demande de la ville de Compiègne, dans l’ancien camp d’internement de Royallieu à Compiègne, a permis d’identifier un tunnel d’évasion utilisé, par dix-neuf internés, lors d’une première évasion en 1942 et treize lors d’une seconde en 1944. Un deuxième tunnel a été observé mais aucun document historique n..

Carbon-based materials for humidity sensing: a short review

Humidity sensors are widespread in many industrial applications, ranging from environmental and meteorological monitoring, soil water content determination in agriculture, air conditioning systems, food quality monitoring, and medical equipment to many other fields. Thus, an accurate and reliable measurement of water content in dierent environments and materials is of paramount importance. Due to their rich surface chemistry and structure designability, carbon materials have become interesting in humidity sensing. In addition, they can be easily miniaturized and applied in flexible electronics. Therefore, this short review aims at providing a survey of recent research dealing with carbonaceous materials used as capacitive and resistive humidity sensors. This work collects some successful examples of devices based on carbon nanotubes, graphene, carbon black, carbon fibers, carbon soot, and more recently, biochar produced from agricultural wastes. The pros and cons of the dierent sensors are also discussed in the present review

Cool Season Annual Forage Mixtures Trial

In 2018, the University of Vermont Extension Northwest Crops and Soils Program evaluated yield and quality of cool season annuals planted in mixtures an in monoculture at Borderview Research Farm in Alburgh, VT. In the Northeast, cool season perennial grasses dominate the pastures and hay meadows farmers rely on throughout the season. It can be challenging for these grasses to rebound after the summer slump period and maintain high yield and quality into the fall when diseases can become prevalent. Adding cool season annual forages into the grazing system during this time may help improve the quality and quantity of forage and potentially extend the grazing season. Recently, there has been a growing interest in utilizing multiple cool season forage species in mixtures to maximize yield and quality. We compared twelve annual forage species planted in monocultures as well as two- and three-way mixtures to evaluate potential differences in forage production and quality. While the information presented can begin to describe the yield and quality performance of these forage mixtures in this region, it is important to note that the data represent results from only one season and one location

WO3-Doped Indium Oxide Thick Films for Ozone Detection at Low Temperature

Ozone, a strong oxidizing gas, has dramatically increased its concentration in the troposphere during the last decades. Since high O3 concentrations are hazardous to human health, the development of effective methods and economic devices to detect this gas is an urgent need. In this frame, In2O3 is well known as an n-type ozone sensitive and selective material, generally displaying its optimal sensing capability in the temperature range 200–350 °C. To enhance the sensing capability of In2O3 and to decrease its operative temperature, in this work, commercial In2O3 powders were doped with 2.5 wt. % WO3. Pure and doped-In2O3 materials were used to develop sensing devices by screen-printing technology. Resistance measurements were performed in the temperature range 25 °C–150 °C under 200–500 ppb O3. Best results were obtained at 75 °C with sensor’s responses as high as 40 under 200 ppb of ozone

Biochar for gas sensors devices

In recent years, biochar applications are present in many fields [1]. It has been studied as substitution for more expensive carbon materials like carbon nanotubes, graphene and others. The evident advantage for biochar is its low cost of production, being an environmentally friendly source of huge carbon content. On the other hand, nowadays the main application of this material is as field amendment in agriculture [2]. Starting for the peculiarity of biochar, it is possible to modify its features. For instance, after high temperature treatments, its surface area can increase sharply. Please click on the file below for full content of the abstract

Orthographic Contamination of Broca’s Area

Strong evidence has accumulated over the past years suggesting that orthography plays a role in spoken language processing. It is still unclear, however, whether the influence of orthography on spoken language results from a co-activation of posterior brain areas dedicated to low-level orthographic processing or whether it results from orthographic restructuring of phonological representations located in the anterior perisylvian speech network itself. To test these hypotheses, we ran a fMRI study that tapped orthographic processing in the visual and auditory modalities. As a marker for orthographic processing, we used the orthographic decision task in the visual modality and the orthographic consistency effect in the auditory modality. Results showed no specific orthographic activation neither for the visual nor the auditory modality in left posterior occipito-temporal brain areas that are thought to host the visual word form system. In contrast, specific orthographic activation was found both for the visual and auditory modalities at anterior sites belonging to the perisylvian region: the left dorsal–anterior insula and the left inferior frontal gyrus. These results are in favor of the restructuring hypothesis according to which learning to read acts like a “virus” that permanently contaminates the spoken language system