54 research outputs found

    System of Inspection Assisted by Microprocessor

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    In spite of significant advances in the field of automatic inspection (robotization, motorization), there are still numerous cases where the cost of such facilities cannot be justified due to the low production rates, or to the fact that they are not easily applicable due to the shape of the parts or to the environment (on-site maintenance inspection or inspection during manufacture in particular areas of composite parts)

    Design of a System of Inspection Assisted by Microprocessor (SIAM) for Adhesive Bonded Composite Structures

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    The aeronautical industry makes wide use of non-destructive testing at two stages in the life of its product: during and at the end of manufacture, to guarantee the quality of the products delivered; and during service, to check and maintain the safety of its products

    External beam radiotherapy boost versus surgical debulking followed by radiotherapy for the treatment of metastatic lymph nodes in cervical cancer: A systematic review and meta-analysis.

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    We aimed to assess disease-free survival (DFS), overall survival (OS) and treatment-related toxicity of two therapeutic strategies for treating bulky lymph nodes on imaging in patients with locally advanced cervical cancer (LACC): radiotherapy boost versus surgical debulking followed by radiotherapy. We performed a systematic review of studies published up to October 2023. We selected studies including patients with LACC treated by external beam radiotherapy (EBRT) boost or lymph node debulking followed by EBRT (with or without boost). We included two comparative (included in the meta-analysis) and nine non-comparative studies. The estimated 3-year recurrence rate was 28.2% (95%CI:18.3-38.0) in the EBRT group and 39.9% (95%CI:22.1-57.6) in the surgical debulking plus EBRT group. The estimated 3-year DFS was 71.8% and 60.1%, respectively (p = 0.19). The estimated 3-year death rate was 22.2% (95%CI:11.2-33.2) in the EBRT boost group and 31.9% (95%CI:23.3-40.5) in the surgical debulking plus EBRT group. The estimated 3-year OS was 77.8% and 68.1%, respectively (p = 0.04). No difference in lymph node recurrence between the two comparative studies (p = 0.36). The meta-analysis of the two comparative studies showed no DFS difference (p = 0.13) but better OS in the radiotherapy boost group (p = 0.006). The incidence of grade≥3 toxicities (ranging 0-50%) was not different between the two approaches in the two comparative studies (p = 0.31). No DFS and toxicity difference when comparing EBRT boost with surgical debulking of enlarged lymph nodes and EBRT in patients with cervical cancer was evident. Radiotherapy boost had better OS. Further investigation is required to better understand the prognostic role of surgical lymph node debulking in light of radiotherapy developments

    System of Inspection Assisted by Microprocessor

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    In spite of significant advances in the field of automatic inspection (robotization, motorization), there are still numerous cases where the cost of such facilities cannot be justified due to the low production rates, or to the fact that they are not easily applicable due to the shape of the parts or to the environment (on-site maintenance inspection or inspection during manufacture in particular areas of composite parts).</p

    Design of a System of Inspection Assisted by Microprocessor (SIAM) for Adhesive Bonded Composite Structures

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    The aeronautical industry makes wide use of non-destructive testing at two stages in the life of its product: during and at the end of manufacture, to guarantee the quality of the products delivered; and during service, to check and maintain the safety of its products.</p

    An Ultrasonic F-Scan Inspection Technique for the Detection of Surface Preparation Variances in Adhesively Bonded Structures

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    An adhesive bond can be used to join metal to metal, metal to composite, composite to composite, metal to honeycomb, composite to foam, etc., to form a new structure. These adhesively bonded joints are being utilized in airframes to meet the general industry requirements of increased performance and decreased weight. These bonds are replacing rivets and other mechanical fasteners in load bearing situations and failure of the bond can therefore lead to failure of the component and possibly an entire structural system.</p

    Dispersion Curves Analysis for Bonded Plates at Low Fd

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    Today the use of adhesive bonds is more developed in many industries and more specifically in Space Industries. Its development is limited by the possibility to make a non-destructive evaluation of the quality of the bond. Up to now, the inspection of the cohesion and the thickness of the glue are well controlled. With regard to the adhesion, the problem is not yet solved.</p
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