检索结果-南通市图书馆

Genome-resolved metagenomics of Venice Lagoon surface sediment bacteria reveals high biosynthetic potential and metabolic plasticity as successful strategies in an impacted environment

引用

Marine Life science & Technology 2024年第1期6卷 126-142页

作者： Elisa Banchi Erwan corre Paola Del Negro Mauro Celussi Francesca Malfatti National Institute of Oceanography and Applied Geophysics OGs TriesteItaly FR2424 Station Biologique de RoscoffPlateforme ABiMS(Analysis and Bioinformatics for Marine Science)Sorbonne Universite CNRS29680 RoscoffFrance Department of Life sciences University of TriesteTriesteItaly

Bacteria living in sediments play essential roles in marine ecosystems and deeper insights into the ecology and biogeochemistry of these largely unexplored organisms can be obtained from‘omics’***,we characterized metagenome-assembled-genomes(MAGs)from the surface sediment microbes of the Venice Lagoon(northern Adriatic sea)in distinct sub-basins exposed to various natural and anthropogenic *** were explored for biodiversity,major marine metabolic processes,anthropogenic activity-related functions,adaptations at the microscale,and biosynthetic gene *** from 126 MAGs,a non-redundant dataset of 58 was compiled,the majority of which(35)belonged to(Alpha-and Gamma-)*** the broad microbial metabolic repertoire(including C,N,and s metabolisms)the potential to live without oxygen emerged as one of the most important *** was also found as a successful *** analysis showed that different MAGs encoded the same metabolic patterns(e.g.,C fixation,sulfate oxidation)thus suggesting metabolic *** and toxic compounds resistance genes were coupled,a condition that could promote the spreading of these genetic *** showed a high biosynthetic potential related to antimicrobial and biotechnological classes and to organism defense and interactions as well as adaptive strategies for micronutrient uptake and cellular *** results highlighted that bacteria living in an impacted environment,such as the surface sediments of the Venice Lagoon,may benefit from metabolic plasticity as well as from the synthesis of a wide array of secondary metabolites,promoting ecosystem resilience and stability toward environmental pressures.

关键词： Antibiotic resistance PAHs Biosynthetic gene clusters Microscale Mobilome Resistome

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Malleostapedotomy for otosclerosis,our experience of nitinol piston on twelve patients

引用

Journal of Otology 2020年第4期15卷 129-132页

作者： stephane Gargula Mary Daval Nicolas Arej Mathieu Veyrat Alain corre Denis Ayache Department of Otorhinolaryngology Rothschild Foundation HospitalParisFrance Clinical Research Department Rothschild Foundation HospitalParisFrance

Objective:Malleostapedotomy allows to completely by-pass the incus in otosclerosis *** its use has been rivaled by hydroxyapatite cement for cases of mild and moderate necrosis of the ***,it remains gold standard for cases of extensive necrosis,incus dislocation,or epitympanic *** heat-crimping pistons make surgery easier and *** study focuses on our experience with this ***:Retrospective analysis of patient’s files and pre-and post-operative audiograms,for cases of surgically treated otosclerosis with ***:Twelve patients underwent malleostapedotomy for otosclerosis between 2011 and *** them there were 10 revision surgeries and 2 primary cases.75%had incus long-process necrosis,17%had epitympanic fixation and one had a history of incus *** patients(75%)had closure of air-bone gap(ABG)ofshold of 20 dB(ps 31 dB(15 dBe55 dB),and mean post-operative ABG was 7 dB(0 dBe21 dB;ps no sensorineural hearing loss nor any other post-operative ***:Malleostapedotomy is a safe and reliable technique,allowing an ABG closure comparable to conventional incus to vestibule *** remains the preferred technique whenever the incus cannot be used.

关键词： Malleus stapes Otosclerosis Conductive hearing loss Chronic otitis media Hydroxyapatite

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

On the Alternate Direction Implicit (ADI) Method for solving Heat Transfer in Composite stamping

引用

Materials sciences and Applications 2017年第1期8卷 37-63页

作者： Arthur Levy Duc Anh Hoang steven Le corre Laboratoire de Thermique et Energie de Nantes La Chantrerie Rue Christian Pauc Nantes France IRT Jules Verne Chemin du Chaffault Bouguenais France

Thermostamping of thermoplastic matrix composites is a process where a preheated blank is rapidly shaped in a cold matching mould. Predictive modelling of the main physical phenomena occurring in this process requires an accurate prediction of the temperature field. In this paper, a numerical method is proposed to simulate this heat transfer. The initial three-dimensional heat equation is handled using an additive decomposition, a thin shell assumption, and an operator splitting strategy. An adapted resolution algorithm is then presented. It results in an alternate direction implicit decomposition: the problem is solved successively as a 2D surface problem and several one-dimensional through thickness problems. The strategy was fully validated versus a 3D calculation on a simple test case and the proposed strategy is shown to enable a tremendous calculation speed up. The limits of applicability of this method are investigated with two parametric studies, one on the thickness to width ratio and the other one on the effect of curvature. These conditions are usually fulfilled in industrial cases. Finally, even though the method was developed under linear assumption (constant material properties), the strategy validity is extended to multiply, temperature dependant (nonlinear) case using an industrial test case. Because of the standard methods involved, the proposed ADI method can readily be implemented in existing software.

关键词： Thin Plates Alternate Direction Implicit shell Theory Operator splitting In-Plane Variations

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Numerical prediction of a draft tube flow taking into account uncertain inlet conditions

Numerical prediction of a draft tube flow taking into accoun...

引用

The 26th IAHR symposium on Hydraulic Machinery and systems

作者： O Brugiere G Balarac C corre O Metais E Flores Pleroy Grenoble-INP/UJF Grenoble 1 /CNRs LEGI UMR 5519 Domaine Universitaire BP 53Grenoble38 041FRANCE Alstom Power Hydro

The swirling turbulent flow in a hydroturbine draft tube is computed with a nonintrusive uncertainty quantification （UQ） method coupled to Reynolds-Averaged Navierstokes （RANs） modelling in order to take into account in the numerical prediction the physical uncertainties existing on the inlet flow *** proposed approach yields not only mean velocity fields to be compared with measured profiles,as is customary in Computational Fluid Dynamics （CFD） practice,but also variance of these quantities from which error bars can be deduced on the computed profiles,thus making more significant the comparison between experiment and computation.

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

黄金岸线海滩能否抵挡极端事件的冲击

引用

海洋地质动态 2008年第9期24卷 21-24页

作者： Bruno Castelle YannLe corre Rodger Tomlinson 刘锐

砂质海滩是最变化莫测和脆弱的海岸带类型之一.众所周知,海滩在高能环境中会被侵蚀,但海滩上不同位置点对于极端事件的抵御能力则大不相同.而且,侵蚀速率通常受控于海滩状况、机械结构和前期补给.

关键词：砂质海滩极端事件黄金岸线侵蚀速率抵御能力机械结构海岸带

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Thermally and Optical-Induced Effect on Optical and Electrical Parameters of Ag-Doped Cdse Thin Films

引用

Acta Metallurgica sinica(English Letters) 2015年第5期28卷 591-599页

作者： Jagdish Kaur s.K.Tripathi Department of Physics Panjab University

Thin films of Ag-doped Cdse are deposited on the glass substrates by thermal evaporation technique using inert gas condensation method. The elemental composition of the prepared thin film is confirmed by EDX spectra. sEM analysis reveals the uniform distribution of the grains over the substrate. TEM analysis reveals the spherical nature of nanoparticles having size in the range of 25-30 nm. X-ray diffraction study indicates an increase in the grain size after thermal annealing and the decrease in the grain size after light soaking treatment. Transmittance spectra are found to decrease with corre- sponding red shift after annealing and light soaking of as-deposited thin films. The value of the band gap is found to decreases and refractive index increases, after annealing and light soaking treatment. The dispersion of refractive index is described using the Wemple-DiDomenico single oscillator model and the effects of the annealing and the light soaking on the dispersion parameters are studied. The dark conductivity is found to change from 2.24 × 10^-8 to 1.54 × 10^-7 and 1.45 ×10^-9 Ω-1 cm-1 after annealing and light soaking of thin films, respectively. Hall effect measurement reveals n-type behavior of as-deposited, annealed and light-soaked thin films.

关键词： Cdse Thin film surface treatment Electrical properties

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

根管内增强纤维在儿科的应用：病例报告

引用

中国口腔医学继续教育杂志 2005年第3期8卷 56-58页

作者： Rachel de Oliveira Rocha Lucimara Teixeira das Neves Noely Regina Marotti Marcia Turolla Wanderley Maria salete Nahás Pires corre.a 吴南(译) 赵玉鸣(校) 不详北京大学口腔医学院北京海淀区中关村南大街22号100081

本文介绍了一种使用间接树脂冠和根管内增强纤维来修复龋坏的上颌乳切牙的方法。每颗牙齿都先进行了根管治疗。使用根管内增强纤维的优点包括：树脂冠强度增加，透明，相对操作简便。另外，使用间接树脂冠能够获得很好的外形和美观，同... 详细信息

本文介绍了一种使用间接树脂冠和根管内增强纤维来修复龋坏的上颌乳切牙的方法。每颗牙齿都先进行了根管治疗。使用根管内增强纤维的优点包括：树脂冠强度增加，透明，相对操作简便。另外，使用间接树脂冠能够获得很好的外形和美观，同时能够减少儿童的椅旁时间。间接树脂冠和根管内增强纤维在一名3岁女孩的使用以图示说明这一技术。

关键词：根管增强纤维儿科上颌乳切牙牙齿

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Ambient noise H/V spectral ratio in site effects estimation in Fateh jang area, Pakistan

引用

Earthquake science 2015年第1期28卷 87-95页

作者： s.M.Talha Qadri Bushra Nawaz s.H.sajjad Riaz Ahmad sheikh Department of Earth sciences University of Sargodha College of Earth and Environmental sciences University of the Punjab

Local geology or local site effect is a crucial component while conducting seismic risk assessment studies. Investigations made by utilization of ambient noise are an effective tool for local site estimation. The present study is conducted to perform site response analysis at 13 different sites within urban settlements of Fateh jang area （Pakistan）. The aim of this study was achieved by utilizing Nakamura method or H/V spectral ratio method. some important local site parameters, e.g., the fundamental fre- quencies f0 of soft sediments, amplitudes A0 of corre- sponding H/V spectral ratios, and alluvium thicknesses over 13 sites within the study area, were measured and analyzed. The results show that the study area reflects low fundamental frequency fo. The fundamental frequencies of the sediments are highly variable and lie in a range of 0.6-13.0 Hz. similarly, amplification factors at these sites are in the range of 2.0-4.0.

关键词： Local site effectspectral ratios Fundamentalfactor Alluvium thickness Ambient noise H/Vfrequency Amplification

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Metal-organic frameworks of lanthanide iminodiacetates and tartrates:synthesis,structural characterization and luminescence properties——Commemorating the 100th anniversary of the birth of Academician Guangxian Xu

引用

Journal of Rare Earths 2021年第5期39卷 487-494页

作者： Melissa Fairley M.M.Varuni s.Livera Wanmin Chen Jorge H.s.K.Monteiro Adam schmitt Ana de Bettencourt-Dias sue Roberts Zhiping Zheng Department of Chemistry and Biochemistry University of ArizonaTucsonAZ 85721USA Department of Chemistry Southern University of Science and TechnologyShenzhen 518055China Department of Chemistry University of NevadaRenoNV 89557USA

Two series of lanthanide-containing metal-organic frameworks(Ln-MOFs)of the general formula{[Ln(HIDA)_(2)H_(2)O]ClO_(4)·H_(2)O}_n(Ln=La(1),Nd(2),Eu(3),Gd(4),Tb(5),Eu:Tb(6);H_(2)IDA=iminodiacetic acid)and[Ln(TT)(HTT)(H_(2)O)_3]_n(Ln=Eu(7),Gd(8),Tb(9),Dy(10),and Eu:Tb(11);H_(2)TT=tartaric acid)were synthesized by reacting Ln(ClO_(4))_3 with iminodiacetic acid and L-tartaric acid,*** compounds were structurally characterized by single-crystal X-ray *** analyses are co nsistent with the corre sponding crystallographically generated *** reover,the luminescence properties of both the single and mixed-lanthanide complexes were *** infrared,red,and green emissions that are characteristic of Nd(Ⅲ),Eu(Ⅲ),and Tb(Ⅲ)are observed for 2,3/7,and 5/9,*** the two mixed-lanthanide complex systems 6 and 11,depending on the relative amount of Eu(Ⅲ)and Tb(Ⅲ),the color of emission can be *** is found that a small amount of Eu(Ⅲ)is adequate for the observation of the most intense transition of Eu(Ⅲ).This is believed to be a result of energy transfer from Tb(Ⅲ)to Eu(Ⅲ)within the same complex-a conclusion supported by the significantly shortened lifetime of Tb(Ⅲ)and the accompanying enhanced lifetime of Eu(Ⅲ)in the mixedlanthanide complex with respect to the corresponding values for the pure Tb(Ⅲ)and Eu(Ⅲ)complexes with the same ligand.

关键词： Lanthanides Metal-organic frameworks Luminescence Rare earths

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

淀粉和酱油间相互作用的研究

引用

广东食品 1996年第3期 19-19页

作者： corre.,H

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：