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Genetic diversity and spatial structure of indigenous sheep population of Benin revealed by microsatellite markers
12 août 2022,
- HE Condorcet
- CARAH
,
- Article scientifique
Article scientifique
"This study investigated the genetic variability existing within the indigenous sheep population of Benin. Hair samples from 681 unrelated sheep collected across the 10 phytogeographic zones of Benin were genotyped using a set of 12 microsatellite markers"
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Green Ceramic Machining: Influence of the Cutting Speed and the Binder Percentage on the Y-TZP Behavior
21 mai 2020,
- HE Condorcet
,
- Article scientifique
Article scientifique
Abstract : "The demand for inert bioceramics is always increasing in the dental field. Yttrium oxide tetragonal zirconia polycrystals (Y-TZP) are oxide ceramics which are currently used because of their interesting mechanical properties due to a toughening transformation. Industrially speaking, machining of the ceramic before sintering (green body) is very common because it allows a better productivity ...
Green Ceramic Machining: Determination of the Recommended Feed Rate for Y-TZP Milling
01 septembre 2021,
- HE Condorcet
,
- Article scientifique
Article scientifique
Abstract : "Manufacturing of advanced ceramic parts exhibiting complex geometries is laborious and expensive. Traditionally, the machining is carried out on a so-called ‘green ceramic’: a compact composed of ceramic powder held with the help of a binder. This difficulty is due not only to the composition of the material, but also to the lack of methods that determine optimal machining parameters. ...
Experimental investigation on green ceramic machining with nanosecond laser source
03 décembre 2020,
- HE Condorcet
,
- Article scientifique
Article scientifique
Abstract : "Yttrium oxide tetragonal zirconia polycrystals (Y-TZP) is an inert bioceramic used for many bio-implantable applications that request a high accuracy which is difficult to achieve with the current technologies. Laser machining of hard ceramic is difficult because the interaction of the laser beam with the material can lead to microcracks and surface modifications of the microstructure. ...
Behaviour of pre-sintered Y-TZP during machining operations: Determination of recommended cutting parameters
06 février 2018,
- HE Condorcet
,
- Article scientifique
Article scientifique
"In this paper,the NF E 66-520-5 standard, dedicated to the determination ofthe optimal cutting parameters suitable for ductile material, is applied to the pre-sintered ceramic Y-TZP. The objective of the standard is to calculate the specific cutting energy of the forces created between the chosen tool and material during machining operation. Specific cutting energy is the energy required to remove ...
Prediction of local sintering in laser beam machining of green Y-TZP ceramic
20 mai 2020,
- HE Condorcet
,
- Article scientifique
Article scientifique
Abstract : "Laser beam machining of Y-TZP engineering ceramic material is carried out in green stage to increase the material removal rate. The generation of hot spots may cause local sintering of the ceramic material leading to a decrease of the mechanical properties of the final sintered component. This paper presents the implementation of alternative laser beam paths to reduce the hot spots ...
An Experimental Setup Based On a Printable System for the Acquisition of the Real-Time Electrical Response of Irradiated Semiconductor Devices
12 décembre 2022,
- HE Condorcet
,
- Article scientifique
Article scientifique
"This paper proposes a portable 3D printed test set-up allowing to realize this transient measurement while ensuring no interaction with the outside world. Moreover the setup proposes a variation of distance to favor or not the interaction of the semiconductor with the ionizing radiation source. The main advantages of the proposed 3D setup is its adaptability to any kind of radiation source geometry ...
Adaptive benchmarking design for additive manufacturing processes
17 mars 2022,
- HE Condorcet
,
- Article scientifique
Article scientifique
"Standards enabling the objective tolerancing and evaluation of dimensional and geometrical performances of additive manufacturing (AM) printers are still missing. The design, printing and measurements of geometrical benchmark test artefacts (GBTA) is the current solution proposed in literature. However, the current GBTA with fixed dimensions cannot cover most of the available printing area of ...
The bacterial world inside the plant
28 juillet 2022,
- HE Condorcet
,
- Article scientifique
Article scientifique
"This review provides an overview of the current research, including the concept of endophytes, endophytes in plant organs, endophyte colonization, nutrient e ciency use, endophytes and crop nutrition, inoculation with synergistic bacteria, the eect of inoculum concentration on plant root microbiota and synthetic communities. It also examines the practical opportunities and challenges when utilizing ...
Editorial: Microbial services for sustainable agriculture
05 septembre 2022,
- HE Condorcet
,
- Article scientifique
Article scientifique
Editorial on the Research Topic : Microbial services for sustainable agriculture