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与通信兼容的毫米波室内定位中角功率谱视距传输簇的识别方法

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电子与信息学报 2023年第7期45卷 2467-2475页

作者：吕鹏飞 SARRAZIN julien 黄默中国科学院微电子研究所北京100029 中国科学院大学北京100049 Sorbonne UniversitéParis France 75252

该文提出一种在室内无线定位中识别毫米波视距传输(LoS)的方法,在室内毫米波无线通信的波束训练框架下,实现了信道角功率谱(PAS)中视距角度簇的识别。该方法通过分水岭算法,将角功率谱聚类成簇,进而采用最大似然比和人工神经网络分析角... 详细信息

该文提出一种在室内无线定位中识别毫米波视距传输(LoS)的方法,在室内毫米波无线通信的波束训练框架下,实现了信道角功率谱(PAS)中视距角度簇的识别。该方法通过分水岭算法,将角功率谱聚类成簇,进而采用最大似然比和人工神经网络分析角度簇内5个不同信道指标,即空间对称性、冲激响应和传递函数的信号峰度、平均过度延迟和均方根(RMS)延迟扩展。仿真结果中可观察到视距和非视距(NLOS)角功率谱簇之间差异明显,并以实验验证了该识别方法的有效性。

关键词：室内定位视距传输识别毫米波信道角度域聚类分水岭分割

Genetic identification and reiterated captures suggest that the Astyanax mexicanus El Pachón cavefish population is closed and declining

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Zoological Research 2023年第4期44卷 701-711页

作者： Laurent Legendre Julie Rode Isabelle Germon Marie Pavie Carla Quiviger Maxime Policarpo julien Leclercq Stéphane Père julien Fumey Carole Hyacinthe Patricia Ornelas-García Luis Espinasa Sylvie Rétaux Didier Casane UniversitéParis-Saclay CNRSIRDUMRÉvolutionGénomesComportement etÉcologieGif-sur-Yvette 91190France Objectif Sciences International NGO OSI-Panthera ProgramGeneva 99140Switzerland Institut de Neuroscience Paris-Saclay UniversitéParis-Saclay and CNRSSaclay 91400France Institut Pasteur UniversitéParis CitéCNRS UMR 2000Microbial Paleogenomics UnitParis 75015France Institut Pasteur UniversitéParis CitéBioinformatics and Biostatistics HubParis 75015France Department of Genetics Harvard Medical SchoolBlavatnik InstituteBoston MA 02115USA Colección Nacional de Peces Departamento de ZoologíaInstituto de BiologíaUniversidad Nacional Autónoma de MéxicoMéxico DF CP 04510México School of Science Marist CollegePoughkeepsieNew York 12601USA UniversitéParis Cité UFR Sciences du VivantParis 75013France Zoological Institute Department of Environmental SciencesUniversity of BaselBaselSwitzerland

The sizes of Astyanax mexicanus blind cavefish populations of North-East Mexico are demographic parameters of great importance for investigating a variety of ecological,evolutionary,and conservation ***,few estimates have been *** these mobile animals living in an environment difficult to explore as a whole,methods based on capture-mark-recapture are appropriate,but their feasibility and interpretation of results depend on several assumptions that must be carefully ***,we provide evidence that minimally invasive genetic identification from captures at different time intervals(three days and three years)can give insights into cavefish population size dynamics as well as other important demographic parameters of *** also provide tools to calibrate sampling and genotyping efforts necessary to reach a given level of *** results suggest that the El Pachón cave population is currently very small,of an order of magnitude of a few hundreds of individuals,and is distributed in a relatively isolated *** probable decline in population size in the El Pachón cave since the last census in 1971 raises serious conservation issues.

关键词： Cavefish Population size Conservation Swabbing Genetic identification

Pharmacological attenuation of blood pressure variability

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Acta Pharmacologica Sinica 2005年第11期26卷 1288-1289页

作者： Claude julien France Laboratoire de Physiologie Faculte de Pharmacie Lyon 69373 Universite Claude Bernard Lyon 1

Over the past few years, the research team of ProfessorDing-feng SU has reported an impressive quantity of experimental data about the relationships between blood pressurevariability (BPV) and end-organ damage, a topic of obviousclinical interest. This research work has been summarized ina paper that appeared in the August issue of the renownedjournal Trends in Pharmacological Sciences[1]. The studiesby Su et al provide convincing evidence that BPV is an independent cardiovascular risk factor that should be considered as such and, therefore, might become an important target for therapeutic interventions. Besides these exciting perspectives in the prevention and treatment of cardiovascular

关键词： BPV Pharmacological attenuation of blood pressure variability

Linear synchronization and circuit implementation of chaotic system with complete amplitude control

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Chinese Physics B 2017年第12期26卷 124-133页

作者：李春彪 Wesley Joo-Chen Thio julien Clinton Sprott 张若洵陆天爱 Jiangsu Key Laboratory of Meteorological Observation and Information Processing Nanjing University of Information Science & Technology Nanjing 210044 China School of Electronic & Information Engineering Nanjing University of Information Science & Technology Nanjing 210044 China Department of Electrical and Computer Engineering The Ohio State University Columbus OH 43210 USA Department of Physics University of Wisconsin-Madison Madison WI 53706 USA College of Teacher Education Xingtai University Xingtai 054001 China

Although chaotic signals are considered to have great potential applications in radar and communication engineering, their broadband spectrum makes it difficult to design an applicable amplifier or an attenuator for amplitude conditioning. Moreover, the transformation between a unipolar signal and a bipolar signal is often required. In this paper, a more intelligent hardware implementation based on field programmable analog array （FPAA） is constructed for chaotic systems with complete amplitude control. Firstly, two chaotic systems with complete amplitude control are introduced, one of which has the property of offset boosting with total amplitude control, while the other has offset boosting and a parameter for partial control. Both cases can achieve complete amplitude control including amplitude rescaling and offset boosting. Secondly, linear synchronization is established based on the special structure of chaotic system. Finally, experimental circuits are constructed on an FPAA where the predicted amplitude control is realized through only two independent configurable analog module （CAM） gain values.

关键词： complete amplitude control amplitude rescaling offset boosting linear synchronization

Mixed-species aggregations in arthropods

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Insect Science 2019年第1期26卷 2-19页

作者： julien Boulay Cindy Aubernon Graeme D.Ruxton Valery Hedouin Jean-Louis Deneubourg Damien Charabidze CHU Lille Universite Lille 2EA 7367-UTML-Unite de Taphonomie Medico-LegaleLilleFrance School of Biology University of St. AndrewsDyers Brae HouseSt.AndrewsFifeUK Unit of Social Ecology-CP 231 Universite Libre de Bruxelles (ULB)Campus de la PlaineBoulevard du TriompheBrusselsBelgium

This review offers the first synthesis of the research on mixed-species groupings of arthropods and highlights the behavioral and evolutionary questions raised by such ***-species groups are commonly found in mammals and *** groups are also observed in a large range of arthropod taxa independent of their level of sociality. Several examples are presented to highlight the mechanisms underlying such groupings, particularly the evidence for phylogenetie proximity between members that promotes cross-species *** advantages offered by such aggregates are described and *** advantages can be attributed to the increase in group size and could be identical to those of nonmixed groupings,but competition-cooperation dynamics might also be involved,and such effects may differ between homo-and heterospecific *** discuss three extreme cases of interspecific recognition that are likely involved in mixed-species groups as vectors for cross-species aggregation:tolerance behavior between two social species,one-way mechanism in which one species is attractive to others and two-way mechanism of mutual *** shown in this review,the study of mixed-species groups offers biologists an interesting way to explore the frontiers of cooperation-competition, including the process of sympatric speciation.

关键词： collective behavior complex system cross-species recognition self-organization sociality

Signet-ring cell carcinoma of the stomach: Impact on prognosis and specific therapeutic challenge

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World Journal of Gastroenterology 2015年第40期21卷 11428-11438页

作者： Simon Pernot Thibault Voron Geraldine Perkins Christine Lagorce-Pages Anne Berger julien Taieb Department of Gastroenterology and Digestive Oncology Georges-Pompidou European Hospital Department of Digestive Surgery Georges-Pompidou European Hospital Department of Genetic Georges-Pompidou European Hospital Department of Pathology GeorgesPompidou European Hospital

While the incidence of gastric cancer has decreased worldwide in recent decades,the incidence of signetring cell carcinoma(SRCC) is rising. SRCC has a specific epidemiology and oncogenesis and has two forms: early gastric cancer,which can be resected endoscopically in some cases and which has a better outcome than non-SRCC,and advanced gastric cancer,which is generally thought to have a worse prognosis and lower chemosensitivity than non-SRCC. However,the prognosis of SRCC and its chemosensitivity with specific regimens are still controversial as SRCC is not specifically identified in most studies and its poor prognosis may be due to its more advanced stage. It therefore remains unclear if a specific therapeutic strategy is justified,as the benefit of perioperative chemotherapy and the value of taxanebased chemotherapy are unclear. In this review we analyze recent data on the epidemiology,oncogenesis,prognosis and specific therapeutic strategies in both early and advanced SRCC of the stomach and in hereditary diffuse gastric cancer.

关键词： Gastric cancer Signet ring cell carcinoma Diffuse

IMPACT de la déprivation sociale sur les difficultés psychosociales au décours d’un cancer pédiatrique:uneétude prospective IMPACT of the Social Deprivation on Psychosocial Difficulties of Pediatric Cancer Survivors:A Prospective Study

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Psycho-Oncologie 2024年第2期18卷 117-126页

作者： Fanny Delehaye Olivier Dejardin Isabelle Pellier Ludivine Launay Maxime Esvan Damien Bodet Liana Carausu julien Lejeune Frédéric Millot Caroline Thomas Virginie Gandemer Arnaud Alves julien Rod U1086 INSERM“Anticipe” Caen14000France Department of Pediatric Hematology and Oncology University Hospital of CaenCaen14000France Research Department University Hospital of CaenCaen cedex14000France Department of Pediatric Hematology and Oncology University Hospital of AngersAngers49000France Centre François Baclesse Caen14000France CIC 1414(Centre d’Investigation Clinique de Rennes) Rennes UniversityCHU RennesInsermRennes35000France Department of Pediatric Hematology and Oncology University Hospital of BrestBrest29200France Department of Pediatric Hematology-Oncology Clocheville HospitalUniversity Hospital of ToursTours37000France Pediatric Oncology Unit CIC 802 INSERMUniversity Hospital of PoitiersPoitiers86000France Department of Pediatric Hematology-Oncology University Hospital of NantesNantes44000France Department of Pediatric Hematology and Oncology University Hospital of RennesRennes35000France Service de Chirurgie Digestive CHU CaenUniversitéde Caen-NormandieCaen14000France Department of Pediatric Surgery Caen University HospitalAvenue de la Côte de NacreCaen14000France

The posttreatment period is a key part of the management of pediatric *** this time,school and psychological difficulties have been described in childhood cancer survivors(CCS)and can be prognostic for the success of social *** study estimated the inﬂuence of the household’s socioeconomic status(SES)on these psychosocial *** study is based on a prospective multicentric database and focused on children who received a psychosocial evaluation during their follow-up from 2013 to *** retrieved data on school and psychological *** SES was estimated by a social deprivation *** from1003 patients were *** difficulties were noted in 22%of CCS.A greater social deprivation was significantly associated with school *** relapse,treatment with hematopoietic stem cell transplantation,and central nervous system(CNS)tumors remained significant risk *** the subgroup of CNS tumors,school difficulties were increased and associated with greater social *** difficulties were not associated with the deprivation *** is a link between SES and school difficulties in *** investigations should be carried out for children with CNS tumors,which is the population of the greatest concern.

关键词： Psychosocial difficulties contextual socioeconomic status deprivation cancer children

Cobalt,a reactive metal in releasing hydrogen from sodium borohydride by hydrolysis:A short review and a research perspective

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Science China Chemistry 2010年第9期53卷 1870-1879页

作者： DEMIRCI Umit B AKDIM Ouardia HANNAUER julien CHAMOUN Rita MIELE Philippe Université Lyon 1 CNRSUMR 5615Laboratoire des Multimatériaux et Interfaces

Cobalt is commonly admitted as being a promising catalyst in accelerating NaBH4 hydrolysis,being as reactive as noble metals and much more *** is the topic of the present ***,we survey(i) the NaBH4-devoted literature while especially focusing on the Co catalysts and(ii) our work on the same ***,we report(iii) reactivity results of newly developed Co-based *** both surveys,it mainly stands out that Co has been investigated as catalysts in various forms:namely,as chlorides,reduced nanoparticles(metal Co,Co boride,Co-B alloy),supported over supports and *** doing so the reactivity can be easily varied achieving H2 generation rates from few to >1000 L(H2)/min·g(metal).Nevertheless,our work can be distinguished from the NaBH4 ***,we are working on strategies that focus on making alternative Co-based *** of these strategies is illustrated here as we report new reactivity data of Co-based bimetallic supported *** example,we show that 20 wt% Co90Y10/γAl2O3-20 wt% Co95Hf5/γAl2O3 > 20 wt% Co99Zr1/γAl2O3 > 20 wt% Co/γAl2O3,the best catalysts showing HGRs of about 245 mL(H2)/min or 123 L(H2) /min·g(metals).

关键词： bimetallic catalyst cobalt heterogeneous catalysis hydrogen hydrolysis sodium borohydride sodium tetrahydroborate

Chloramination of wastewater effluent: Toxicity and formation of disinfection byproducts

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Journal of Environmental Sciences 2017年第8期29卷 135-145页

作者： julien Le Roux Michael J.Plewa Elizabeth D.Wagner Maolida Nihemaiti Azra Dad Jean-Philippe Croué LEESU(UMR MA 102) Université Paris-Est–AgroParisTech Department of Crop Sciences the Global Safe Water InstituteUniversity of Illinois at Urbana-Champaign Curtin Water Quality Research Centre Department of ChemistryCurtin University US Food and Drug Administration National Center for Toxicological Research

The reclamation and disinfection of waters impacted by human activities（e.g., wastewater effluent discharges） are of growing interest for various applications but has been associated with the formation of toxic nitrogenous disinfection byproducts（N-DBPs）. Monochloramine used as an alternative disinfectant to chlorine can be an additional source of nitrogen in the formation of N-DBPs. Individual toxicity assays have been performed on many DBPs, but few studies have been conducted with complex mixtures such as wastewater effluents. In this work, we compared the cytotoxicity and genotoxicity of wastewater effluent organic matter（Ef OM） before and after chloramination. The toxicity of chloraminated Ef OM was significantly higher than the toxicity of raw Ef OM, and the more hydrophobic fraction（HPO）isolated on XAD-8 resin was more toxic than the fraction isolated on XAD-4 *** DBPs were also isolated on the XAD-8 resin. N-DBPs（i.e., haloacetonitriles or haloacetamides） were responsible for the majority of the cytotoxicity estimated from DBP concentrations measured in the XAD-8 and XAD-4 fractions（99.4% and 78.5%, respectively）.Measured DBPs accounted for minor proportions of total brominated and chlorinated products, which means that many unknown halogenated compounds were formed and can be responsible for a significant part of the toxicity. Other non-halogenated byproducts（e.g.,nitrosamines） may contribute to the toxicity of chloraminated effluents as well.

关键词： Disinfection byproducts Chloramination Toxicity Wastewater XAD resins Haloacetonitriles Haloacetamides