检索结果-南通市图书馆

应用时间分辨4DCT血管成像评估大血管闭塞性脑梗死的侧支循环

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

国际医学放射学杂志 2014年第2期 197-198页

作者： A.M.J,frlich S.l,Wolff M.N,Psychogios E,Klotz r,Schramm K.Wasser 张倩 Department of Neuroradiology University Medical Centre Gttingen Robert-Koch-Str40 37075 GttingenGermany

目的在大血管闭塞性急性脑梗死病人中,侧支循环的血流状况会影响受累脑组织的存活和病人的预后。CT血管成像(CTA)对侧支循环的显示在很大程度上取决于采

关键词：体层摄影术,X线计算机四维计算机断层扫描梗死侧支循环脑成像

Global.r.porting Format (GrF) Application Automation for runway Surface Conditions in West Africa

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Advances in Aerospace Science and Technology 2022年第3期7卷 135-145页

作者： Dieudonné Sama Doua Allain Gnabahou frédéric Ouattara Marie Zidouemba Oboulbiga Diassibo Sibri Alphonse Sandwidi laboratoire de recherche en Energétique et Météorologie de l’Espace (l.r.ME) Ecole Doctorale Sciences et Technologies Université Norbert ZONGO Koudougou Burkina Faso

This paper aims to design an automated Global.r.porting Format’s (GrF) application in order to reduce time of manual application (on a runway) of the Global.r.porting Format developed by International Civil Aviation Organization (ICAO). A method has been used to measure and generate runway Condition report (rCr) automatically. The developed computing model is an autonomous and automatic application implemented specially for West Africa (and can be extended to any rainy area). It uses Arduino materials and computing code developed by the authors. results obtained show that using that method to retrieve the runway Condition report (rCr) is fast, so human presence on the runway is reduced. Even though the results obtained using this model are slightly different from those expected, the actual.r.nway conditions are not too much affected.

关键词： Climate Change Global.r.porting Format runway Surface Condition Measurements Duration West Africa ICAO

Global Wheat Head Detection(GWHD)Dataset:A l.r.e and Diverse Dataset of High-resolution rGB-labelled Images to Develop and Benchmark Wheat Head Detection Methods

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Plant Phenomics 2020年第1期2卷 243-254页

作者： Etienne David Simon Madec Pouria Sadeghi-Tehran Helge Aasen Bangyou Zheng Shouyang liu Norbert Kirchgessner Goro Ishikawa Koichi Nagasawa Minhajul A.Badhon Curtis Pozniak Benoit de Solan Andreas Hund Scott C.Chapman frédéric Baret Ian Stavness Wei Guo Arvalis Institut du végétal3 Rue Joseph et Marie Hackin75116 ParisFrance UMr1114 EMMAH INRAECentre PACABâtiment ClimatDomaine Saint-Paul228 Route de l’AérodromeCS 4050984914 Avignon CedexFrance Plant Sciences Department Rothamsted ResearchHarpendenUK Institute of Agricultural Sciences ETH ZurichUniversitätstrasse 28092 ZurichSwitzerland CSIrO Agriculture and Food Queensland Biosciences Precinct306 Carmody RoadSt Lucia4067 QLDAustralia Plant Phenomics research Center Nanjing Agricultural UniversityNanjingChina Institute of Crop Science National Agriculture and Food Research OrganizationJapan Hokkaido Agricultural.r.search Center National Agriculture and Food Research OrganizationJapan Department of Computer Science University of SaskatchewanCanada Department of Plant Sciences University of SaskatchewanCanada School of Food and Agricultural Sciences The University of QueenslandGatton4343 QLDAustralia Graduate School of Agricultural and life Sciences The University of Tokyo1-1-1 Midori-choNishitokyo CityTokyoJapan

The detection of wheat heads in plant images is an important task for estimating pertinent wheat traits including head population density and head characteristics such as health,size,maturity stage,and the presence of *** studies have developed methods for wheat head detection from high-resolution rGB imagery based on machine learning ***,these methods have generally been calibrated and validated on limited *** variability in observational conditions,genotypic differences,development stages,and head orientation makes wheat head detection a challenge for computer ***,possible bl.r.ing due to motion or wind and overlap between heads for dense populations make this task even more *** a joint international collaborative effort,we have built a l.r.e,diverse,and well-labelled dataset of wheat images,called the Global Wheat Head Detection(GWHD)*** contains 4700 high-resolution rGB images and 190000 labelled wheat heads collected from several countries around the world at different growth stages with a wide range of *** for image acquisition,associating minimum metadata to respect FAIr principles,and consistent head labelling methods are proposed when developing new head detection *** GWHD dataset is publicly available at http://***/and aimed at developing and benchmarking methods for wheat head detection.

关键词： Wheat wheat maturity

Detection of hyper-conserved regions in hepatitis B virus X gene potentially useful for gene therapy

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2018年第19期24卷 2095-2107页

作者： Carolina González David Tabernero Maria francesca Cortese Josep Gregori rosario Casillas Mar riveiro-Barciela Cristina Godoy Sara Sopena Ariadna rando Marcal Yll.r.sa lopez-Martinez Josep Quer rafael Esteban Maria Buti francisco rodríguez-frías liver Pathology Unit Departments of Biochemistry and MicrobiologyHospital Universitari Vall d’HebronUniversitat Autònoma de BarcelonaBarcelona 08035Spain liver Unit Liver Disease Laboratory-Viral HepatitisVall d’Hebron Institut Recerca-Hospital Universitari Vall d’HebronUniversitat Autònoma de BarcelonaBarcelona 08035Spain Centro de Investigación Biomédica en red de Enfermedades Hepáticas y Digestivas(CIBErehd) Instituto de Salud Carlos IIIMadrid 28029Spain roche Diagnostics Sl Sant Cugat del Vallès 08174Spain liver Unit Department of Internal MedicineHospital Universitari Vall d'HebronUniversitat Autònoma de BarcelonaBarcelona 08035Spain

AIM To detect hyper-conserved regions in the hepatitis B virus(HBV) X gene(HBX) 5' region that could be candidates for gene *** The study included 27 chronic hepatitis B treatmentnaive patients in various clinical stages(from chronic infection to cirrhosis and hepatocellul.r.carcinoma, both HBeA g-negative and HBeA g-positive), and infected with HBV genotypes A-F and H. In a serum sample from each patient with viremia > 3.5 log IU/m l, the HBX 5' end region [nucleotide(nt) 1255-1611] was PCramplified and submitted to next-generation sequencing(NGS). We assessed genotype variants by phylogenetic analysis, and evaluated conservation of this region by calculating the information content of each nucleotide position in a multiple alignment of all unique sequences(haplotypes) obtained by NGS. Conservation at the HBx protein amino acid(aa) level was also *** NGS yielded 1333069 sequences from the 27 samples, with a median of 4578 sequences/sample(2487-9279, IQr 2817). In 14/27 patients(51.8%), phylogenetic analysis of viral nucleotide haplotypes showed a complex mixture of genotypic variants. Analysis of the information content in the haplotype multiple alignments detected 2 hyper-conserved nucleotide regions, one in the HBX upstream non-coding region(nt 1255-1286) and the other in the 5' end coding region(nt 1519-1603). This last region coded for a conserved amino acid region(aa 63-76) that partially overlaps a Kunitz-like *** Two hyper-conserved regions detected in the HBX 5' end may be of value for targeted gene therapy, regardless of the patients' clinical stage or HBV genotype.

关键词： Hepatitis B virus Hepatitis B X gene Hepatitis B X protein Gene therapy Next-generation sequencing HBV conserved regions Small interference rNA

Intrahepatic Cholangiocarcinoma and Hepatocellul.r.Carcinoma:real-life Data on liver Disease,Treatment and Prognosis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Clinical and Translational Hepatology 2023年第5期11卷 1106-1117页

作者： Xavier Adhoute Olivia Pietri Guillaume Pénaranda Thomas Wolf Patrick Beaurain Olivier Monnet Arthur laquière Justine Bonomini frédéric Neumann Olivier levrel Jean-Pascal Buono Xavier Hanna Paul Castellani HervéPerrier Marc Bourliere rodolphe Anty Department of Gastroenterology and Hepatology Hôpital Saint-JosephMarseilleFrance Department of Biostatistics AlphaBio-Biogroup LaboratoryMarseilleFrance Department of radiology Hôpital Saint-JosephMarseilleFrance Department of Clinical.r.search Hôpital Saint-JosephMarseilleFrance Medipath EguillesFrance Department of Hepatobiliary Surgery Hôpital Saint-JosephMarseilleFrance Department of Gastroenterology and Hepatology Hôpital Universitaire de l’ArchetNiceFrance

Background and Aims:Hepatocellul.r.carcinoma(HCC)and intrahepatic cholangiocarcinoma(iCCA)have common features and *** real-life study investigated their characteristics,treatment modalities,and ***:This retrospective comparative study was performed in 1,075 patients seen at one tertiary center between January 2008 and December *** survival(OS)was estimated by the Kaplan-Meier *** of iCCAs after histological and radiological.r.view,and molecul.r.profiling was ***:HCCs patients were more likely to have early-stage disease than iCCA *** patients were more likely to be female,especially those patients without cirrhosis(43%vs.17%).Cirrhosis was prominent among HCC patients(89%vs.34%),but no difference in underlying liver disease among cirrhotic patients was *** of HCC patients was 18.4(95%CI:6.4,48.3)months,that of iCCA patients was 7.0(95%CI:3.4,20.1)*** of Barcelona Clinic liver Cancer C HCC patients was 7.8(95%CI:4.3,14.2)months,that of advanced/metastatic iCCA patients was 8.5(95%CI:5.7,12.3)*** patients treated with sorafenib,OS was longer in HCC patients who received subsequent tyrosine kinase inhibitor *** significant OS difference was found between iCCA patients with and without cirrhosis or according to histological subtype.A targetable molecul.r.alteration was detected in 50%of the iCCA ***:In this french series,cirrhosis was common in iCCA,which showed etiological factors comparable to those of HCC,implying a distinct oncogenic *** entities had a dismal prognosis at advanced ***,systemic therapies sequencing in HCC and molecul.r.profiling in iCCA offer new insights.

关键词： Intrahepatic cholangiocarcinoma Hepatocellul.r.carcinoma Cirrhosis NASH Oncogenic alterations

Soft tissue coverage using pedicled flap in combat zone: A case series

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Military Medical.r.search 2021年第2期8卷 273-277页

作者： laurent Mathieu Soryapong Plang Nicolas de l'Escalopier James Charles Murison Christophe Gaill.r. Antoine Bertani frederic rongieras Department of Orthopedics Trauma and Reconstructive SurgeryPercy Military Hospital101 Avenue Henri Barbusse92140 ClamartFrance Department of Surgery French Military Health Service AcademyEcole du Val-de-Grace75005 ParisFrance Department of Orthopedics and Trauma Surgery Edouard Herriot Hospital69003 LyonFrance

Background:Soft tissue reconstruction is typically conducted after evacuation from theater of *** circumstances do not allow timely evacuation,however,defect site may need to be reconstructed in the combat *** presentation:A total of 41 patients with extremity soft tissue defect were treated using pedicled flaps by a single orthopedic surgeon during four deployments in Chad,Afghanistan and Mali between 2010 and *** mean age was 25.6 years.A total of 46 injury sites in extremities required flap coverage:19 combat-related injuries(CrIs)and 27 non-combat related injuries(NCrIs).Twenty of the injury sites were ***,63 pedicled flap transfers were carried out:15 muscle flaps,35 local fasciocutaneous flaps and 13 distant fasciocutaneous *** flap types used did not differ for CrIs or *** follow-up was 71 *** included deep infection(n=6),flap fail.r.(n=1)and partial flap necrosis(n=1).limb salvage rate was 92.7%(38/41).Conclusions:Soft tissue defect can be managed with simple pedicled flaps in theatre of operations if *** reconstructive procedures should be part of the training for military orthopedic *** registration:retrospectively registered in January 2019(2019-0901-001).

关键词： Pedicled flaps limited resources War surgery reconstruction Training

维普期刊数据库

Extreme events in quantum cascade lasers

在线全文

学校读者我要写书评

暂无评论

Advanced Photonics 2020年第6期2卷 57-68页

作者： Olivier Spitz Jiagui Wu Andreas Herdt Grégory Maisons Mathieu Carras Wolfgang Elsäßer Chee-Wei Wong frédéric Grillot lTCI Télécom ParisInstitut Polytechnique de ParisPalaiseauFrance mirSense Centre d’Intégration NanoInnovPalaiseauFrance University of California los Angeles Fang Lu Mesoscopic Optics and Quantum Electronics LaboratoryLos AngelesCaliforniaUnited States Southwest University College of Electronic and Information EngineeringChongqingChina Technische Universität Darmstadt DarmstadtGermany University of New Mexico Center for High Technology MaterialsAlbuquerqueNew MexicoUnited States

We demonstrate experimentally that mid-infrared quantum cascade lasers(QCls)operating under external optical feedback exhibit extreme *** events can be triggered by adding small amplitude periodic modulation,with the highest success rate for the case of a pulse-up *** findings broaden the potential applications for QCls,which have already been proven to be a semiconductor laser of interest for spectroscopic applications and countermeasure *** ability to trigger extreme events paves the way for optical neuron-like systems where information propagates as a result of high intensity bursts.

关键词： extreme pulses quantum cascade lasers nonlinear dynamics mid-infrared photonics

维普期刊数据库

在线全文

学校读者我要写书评

暂无评论

未来可实现井下油水分离的多功能井

国外油田工程 2001年第9期17卷 31-33页

作者： l.A.Stuebinger G.M.Elphingstone fr 张国辉项勇肖勇天津大港油田勘探开发中心

新工艺、新技术的进步大大改变了油田开发模式，一口油井没有必要确定专门用来采油或注水，在多功能井中，采油和注水可同时进行。这种技术把水留在地下，从而减少了地面水处理量。油、气、水在井筒中按重力不同分层存在，本文讨论的技... 详细信息

新工艺、新技术的进步大大改变了油田开发模式，一口油井没有必要确定专门用来采油或注水，在多功能井中，采油和注水可同时进行。这种技术把水留在地下，从而减少了地面水处理量。油、气、水在井筒中按重力不同分层存在，本文讨论的技术──双功能泵系统（DAPS）可在井筒中维持油、气、水的这种状态，使采油和注水在一口井中同时进行，并产生了巨大的经济效益和社会效益。本文讨论以下几方面：①rocky Mountain油田利用井下油水重力分离原理设计并试验了井下油水分离人工举升系统；②程序模拟过程；③提高环境保护水平；④推广应用新技术存在的困难；⑤应用前景。

关键词：井下油水分离多功能井双功能泵系统重力分离注水采油水处理

维普期刊数据库

Estimating Aboveground Carbon Dynamic of China Using Optical and Microwave remote-Sensing Datasets from 2013 to 2019

在线全文

学校读者我要写书评

暂无评论

Journal of Remote Sensing

Journal of remote Sensing 2023年第1期3卷 19-34页

作者： Zhongbing Chang lei Fan Jean-Pierre Wigneron Ying-Ping Wang Philippe Ciais Jérôme Chave rasmus Fensholt Jing MChen Wenping Yuan Weimin Ju Xin li Fei Jiang Mousong Wu Xiuzhi Chen Yuanwei Qin frédéric frappart Xiaojun li Mengjia Wang Xiangzhuo liu Xuli Tang Sanaa Hobeichi Mengxiao Yu Mingguo Ma Jianguang Wen Qing Xiao Weiyu Shi Dexin liu Junhua Yan Key laboratory of Vegetation restoration and Management of Degraded Ecosystems South China Botanical GardenChinese Academy of SciencesGuangzhou 510650China University of Chinese Academy of Sciences Beijing 100049China Chongqing Jinfo Mountain Karst Ecosystem National Observation and research Station School of Geographical SciencesSouthwest UniversityChongqing 400715China INrAE UMR1391 ISPAUniversite de BordeauxF-33140 Villenave d’OrnonFrance CSIrO Oceans and Atmosphere AspendaleVIC 3195Australia laboratoire des Sciences du Climat et de l’Environnement CEA/CNRS/UVSQ/Universite Paris SaclayGif-sur-YvetteFrance laboratoire Evolution et Diversite Biologique Universite Paul SabatierToulouseFrance Department of Geosciences and Natural.r.source Management University of CopenhagenCopenhagenDenmark Department of Geography and Program in Planning University of TorontoTorontoON M5S 3G3Canada College of Geographical Science Fujian Normal UniversityFuzhou 3500007FujianChina School of Atmospheric Sciences Sun Yat-sen UniversityZhuhai 519082GuangdongChina Southern Marine Science and Engineering Guangdong laboratory Zhuhai 519000GuangdongChina Jiangsu Provincial Key laboratory of Geographic Information Science and Technology International Institute for Earth System ScienceNanjing UniversityNanjing 210023China Jiangsu Center for Collaborative Innovation in Geographical Information resource Development and Application Nanjing 210023China Institute of Tibetan Plateau research Chinese Academy of SciencesBeijing 100101China CAS Center for Excellence in Tibetan Plateau Earth Sciences Chinese Academy of SciencesBeijing 100101China Department of Microbiology and Plant Biology Center for Spatial AnalysisUniversity of OklahomaNormanOKUSA lEGOS Universite de ToulouseCNESCNRSIRDUPS-14 avenue Edouard Belin31400 ToulouseFrance State Key laboratory of remote Sensing Science Faculty of Geographical ScienceBeijing Normal UniversityBeijing 100875China Climate Change research Centre University of N

Over the past 2 to 3 decades,Chinese forests are estimated to act as a l.r.e carbon sink,yet the magnitude and spatial patterns of this sink differ considerably among *** 3 microwave(l-and X-band vegetation optical depth[VOD])and 3 optical(normalized difference vegetation index,leaf area index,and tree cover)remote-sensing vegetation products,this study compared the estimated live woody aboveground biomass carbon(AGC)dynamics over China between 2013 and *** results showed that tree cover has the highest spatial consistency with 3 published AGC maps(mean correlation value r=0.84),followed by l-VOD(r=0.83),which outperform the other *** AGC estimation model was proposed to combine all indices to estimate the annual AGC dynamics in China during 2013 to *** performance of the AGC estimation model was good(root mean square error=0.05 Pg C and r^(2)=0.90 with a mean relative uncertainty of 9.8% at pixel scale[0.25°]).results of the AGC estimation model showed that carbon uptake by the forests in China was about+0.17 Pg C year^(-1) from 2013 to *** the regional level,provinces in southwest China including Guizhou(+22.35 Tg C year^(-1)),Sichuan(+14.49 Tg C year^(-1)),and Hunan(+11.42 Tg C year^(-1))provinces had the highest carbon sink rates during 2013 to *** of the carbon-sink regions have been afforested recently,implying that afforestation and ecological engineering projects have been effective means for carbon sequestration in these regions.

关键词： estimation remote microwave