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Compact Z-pinch radiation source dedicated to broadband absorption measurements

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Matter and Radiation at Extremes 2016年第3期1卷 179-186页

作者： Dunpin Hong herve Rabat Erwan le Menn Clement Zaepffel Jean-Marc Bauchire Univ.of Orleans CNRSGREMIUMR 704414 Rue d'IssoudunBP674445067OrleansFrance CNRS LPGUMR 61122 rue de la HoussinereBP 9220844322NantesFrance Onera-The French Aerospace Lab F-91761PalaiseauFrance

In order to acquire a broadband absorption spectrum in a single shot,a compact radiation source was developed by using a Z-pinch type electric *** paper presents the mechanical and electrical construction of the source,as well as its electrical and optical characteristics,including the intense continuum of radiation emitted by the source in the UV and visible spectral *** also shows that the compactness of the source allows direct coupling with the probed medium,enabling broadband absorption measurement in the spectral range of 200e300 nm without use of an optical fiber which strongly attenuates the light in the short wavelength ***,thanks to this source,broadband spectral absorption of NO molecules around 210 nm and that of OH molecules around 310 nm were recorded in this direct coupling *** atom spectral absorption around 325 nm of the peripheral cold zones of an intense transient arc was also recorded.

关键词： Z-pinch Broadband radiation source Broadband absorption spectrum

Evaluation of Doppler-ultrasonography in the diagnosis of transjugular intrahepatic portosystemic shunt dysfunction: A prospective study

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World Journal of Hepatology 2017年第27期9卷 1125-1132页

作者： Charlotte Nicolas Amelie le Gouge Louis d’Alteroche Jean Ayoub Monica Georgescu Vincent Vidal Denis Castaing Jean-Pierre Cercueil Patrick Chevallier Jerome Roumy herve Trillaud Louis Boyer Vincent le Pennec Christophe Perret Bruno Giraudeau Jean-Marc Perarnau STIC-TIPS group Service d’Hepato-Gastroenterologie Hopital TrousseauCHRU Tours CIC CHRU de Tours INSERM United’echographie-doppler Hopital TrousseauCHRU Tours Service de Radiologie Hopital de la Timone Centre Hepato-Biliaire Hopital Paul Brousse Service de Radiologie CHRU Dijon Service d’Imagerie Medicale Diagnostique et interventionnelle Hopital de l’ArchetⅡNice Service de Radiologie et Echographie CHRU Poitiers Service d’Imagerie Medicale Hopital Saint Andre CHRU Bordeaux Service d’Imagerie viscerale et vasculaire CHRU Clermont Ferrand Service de Radiologie CHRU Caen Service de Radiologie CHRU Nantes 不详

AIM To prospectively evaluate the performance of Dopplerultrasonography(US) for the detection of transjugular intrahepatic portosystemic shunt(TIPS) dysfunction within a multicenter cohort of cirrhotic *** This study was conducted in 10 french teaching hospitals. After TIPS insertion, angiography and liver Doppler-US were carried out every six months to detect dysfunction(defined by a portosystemic gradient ≥ 12 mm Hg and/or a stent stenosis ≥ 50%). The association between ultrasonographic signs and dysfunction was studied by logistic random-effects models, and the diagnostic performance of each Doppler criterion was estimated by the bootstrap method. This study was approved by the ethics committee of *** Two hundred and eighteen pairs of examinations performed on 87 cirrhotic patients were analyzed. Variables significantly associated with dysfunction were: The speed of flow in the portal vein(P = 0.008), the reversal of flow in the right(P = 0.038) and left(P = 0.049) portal branch, the loss of modulation of portal flow by the right atrium(P = 0.0005), ascites(P = 0.001) and the overall impression of the operator(P = 0.0001). The diagnostic performances of these variables were low; sensitivity was led out from Doppler-US. CONCLUSION The performance of Doppler-US for the detection of TIPS dysfunction is poor compared to angiography. New tools are needed to improve diagnosis of TIPS dysfunction.

关键词： Transjugular intrahepatic portosystemic shunt Dysfunction Doppler-ultrasonography

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Preface

Chinese Annals of Mathematics,Series B 2018年第2期39卷 161-162+160页

作者： Hervé le dret Annie RAOULT

Professor Philippe ***’s distinguished international career encompasses several fields of mathematics,from finite difference methods to differential geometry,by way of nonlinear *** following lines do not by any mean... 详细信息

关键词： Preface

Thoracic splenosis: Case report of a symptomatic case

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Chinese Journal of Traumatology 2020年第3期23卷 185-186页

作者： Florent le Bars Remy Pascot Charles Ricordel herve Corbineau Jean Philippe Verhoye Bertrand Richard De Latour Simon Rouze Department of Cardiothoracic Surgery University Hospital CentreRennesFrance Department of Vascular Surgery University Hospital CentreRennesFrance Department of Pneumology University Hospital CentreRennesFrance

Thoracic splenosis is the autotransplantation of splenic tissue in the left thoracic cavity as a result of a splenic injury. This rare pathology is usually asymptomatic and may be discovered on incidental imaging, but the diagnosis often requires invasive procedures such as surgery in order to eliminate a neoplasic origin. We report a rare symptomatic case of a 39-year-old man presenting with chest pain and multiple nodules revealed on a computed tomography scan. The patient underwent a surgical exploration and the pathological studies concluded to a thoracic splenosis. Indeed, the previous medical history of the patient revealed a left thoraco-abdominal traumatism during childhood. The aim of this paper is to emphasize that the diagnosis can now be performed using only imaging techniques such as technetium-99 sulfur colloid or labelled heat-denatured red blood cell scintigraphy to avoid unnecessary invasive procedures including thoracotomy.

关键词： Splenectomy Thoracic splenosis Splenic injury Diaphragmatic injury Pleural nodule

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TIME REVERSAL APPLIED TO ACTIVE UNDERWATER ACOUSTICS:COMPleX TARGET OPTIMAL DETECTION

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TIME REVERSAL APPLIED TO ACTIVE UNDERWATER ACOUSTICS:COMPLEX...

International Conference on Signal Processing(ICSP’93)

作者： Christèle CURT Office National d’Etudes et de Recherches Arospatiales BP 72.F-37322 Chatillon Cedex.France

＜正＞Time reversal which performs recoherence of signals coming from spatially distributed reflectors,is used in this underwater acoustic application as an optimal complex targets detector.

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来源： cnki会议评论

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鲸的重返海洋之路

环球科学 2020年第13期 86-89页

作者：埃尔韦·勒居亚代邓艺杭(翻译) 巴黎索邦大学不详

1943年,法国巴斯德研究院(Pasteur Institute)的微生物学家、未来的诺贝尔奖得主安德烈·利沃夫(Andre Lwoff)发表了一篇文章,引起进化论支持者的强烈批评。在这篇标题为《生理的演化:关于微生物机能丧失的研究》(L'Evolution physiolog... 详细信息

1943年,法国巴斯德研究院(Pasteur Institute)的微生物学家、未来的诺贝尔奖得主安德烈·利沃夫(Andre Lwoff)发表了一篇文章,引起进化论支持者的强烈批评。在这篇标题为《生理的演化:关于微生物机能丧失的研究》(L'Evolution physiologique:etude des pertes de fonctions chez les microorganismes)的文章中,他指出,在微生物的演化过程中,总是伴随着一些机能的丧失。他是如何得出这个结论的?

关键词：诺贝尔奖得主微生物学家安德烈利沃夫巴斯德研究院进化论

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南极鱼的多样化之谜

环球科学 2021年第17期 90-92页

作者：埃尔韦·勒居亚代汪梅子(翻译) 不详

南大洋形成之后,鱼类不仅适应了这片冰冷的水域,还以惊人的方式演化出丰富的种类。如今,我们已经洞悉了其中的奥秘。1842年1月11日,英国极地探险家詹姆斯·克拉克·罗斯(James Clark Ross)率领的皇家海军“幽冥”号(Erebus)和“恐惧”号... 详细信息

南大洋形成之后,鱼类不仅适应了这片冰冷的水域,还以惊人的方式演化出丰富的种类。如今,我们已经洞悉了其中的奥秘。1842年1月11日,英国极地探险家詹姆斯·克拉克·罗斯(James Clark Ross)率领的皇家海军“幽冥”号(Erebus)和“恐惧”号(Terror)被困在南极圈边缘,南纬66°的海冰之中。船员意外抓到一只体长近4米的海豹,在它的胃里发现了大约13千克的鱼。

关键词：皇家海军南大洋克拉克多样化

Spatiotemporal coupling investigations for Ti:sapphire-based multi-PW lasers

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High Power Laser Science and Engineering 2022年第1期10卷 40-52页

作者： Ji Ping Zou herve Coic Dimitris Papadopoulos Laboratoire pour l'Utilisation des Lasers Intenses CNRSEcole Polytechnique91128 PalaiseauFrance CEA-CESTA F-33116 Le BarpFrance

Emerging multi-PW-class lasers and their envisioned laser-plasma interaction applications in unprecedented intensity regimes set a very demanding frame for the precise understanding of the finest properties of these *** this work we present a synthesis of simulation studies on a series of less known or even completely disregarded spatiotemporal effects that could potentially impact greatly the performances of high-intensity lasers.

关键词： spatiotemporal coupling Ti:sapphire lasers ultra-intense lasers

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CLUTTER CALIBRATION FOR SPACE-TIME AIRBORNE MTI RADARS

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CLUTTER CALIBRATION FOR SPACE-TIME AIRBORNE MTI RADARS