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托业听力本领书

Wood anatomy chronologies of Scots pine in the foothills of the Western Sayan(Siberia)

丛书名：国际交流英语考试标准版

2003年

作者：（美）Alan f.Wright

本书分听力题型演练、全真模拟测验等内容。囊括TOEIC听力测验4大题型，提供了400道精华练习题。书中题型、题量、难度均符合考试需要。

ISBN: (纸本)7111116666

本书分听力题型演练、全真模拟测验等内容。囊括TOEIC听力测验4大题型，提供了400道精华练习题。书中题型、题量、难度均符合考试需要。

关键词：英语听说教学水平考试

来源：畅想之星图书光盘版（南... 评论

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Journal of forestry Research 2024年第3期35卷 13-27页

作者： Elena A.Babushkina Dmitry R.Dergunov Mikhail S.Zharkov Liliana V.Belokopytova Dina f.Zhirnova Bao Yang Jingjing Liu Xiaomei Peng Eugene A.Vaganov Khakass Technical Institute Siberian Federal UniversityAbakan 655017Russia Institute of Ecology and Geography Siberian Federal UniversityKrasnoyarsk 660036Russia Mathematical Methods and IT Department Siberian Federal UniversityKrasnoyarsk 660036Russia Key Laboratory of Desert and Desertification Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000People's Republic of China School of Geographic and Oceanographic Sciences Nanjing UniversityNanjing 210093People's Republic of China Department of Dendroecology V.N.Sukachev Institute of ForestSiberian Branch of the Russian Academy of ScienceKrasnoyarsk 660036Russia

Recent methodological advances in quantitative wood anatomy have provided new insights into the climatic responses of radial growth at the scale of cell structure of tree rings. This study considered long-term chronologies of tracheid measurements, indexed by a novel approach to separate their specific climatic responses from signal recorded in cell production(closely reflected in tree-ring width). To fill gaps in understanding the impact of climate on conifer xylem structure, Scots pine(Pinus sylvestris L.)trees > 200 years old were selected within the forest-steppe zone in southern Siberia. Such habitats undergo mild moisture deficits and the resulting climatic regulation of growth processes. Mean and maximum values of cell radial diameter and cell wall thickness were recorded for each tree *** a low level of climatogenic stress, components of cell chronologies independent of cambial activity were separated to obtain significant climatic signals revealing the timing of the specific stages of tracheid differentiation. Cell expansion lasted from mid-April to July and was impacted similarly to tree-ring width(stimulated by precipitation and stressed by heat), maximum cell size formed late June. A switch in the climatic responses of mean anatomical traits indicated transition to latewood in mid-July. Secondary wall deposition lasted until mid-September, suppressed by end of season temperatures. Generally, anatomical climatic responses were modulated by a less dry May and September compared with summer months.

关键词： Quantitative wood anatomy Cell radial size Cell wall thickness Pinus sylvestris Climatic response

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Ultra-broadband polarisation beam splitters and rotators based on 3D-printed waveguides

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Light(Advanced Manufacturing) 2023年第3期4卷 251-262页

作者： Aleksandar Nesic Matthias Blaicher Pablo Marin-Palomo Christoph füllner Sebastian Randel Wolfgang freude Christian Koos Institute of Photonics and Quantum Electronics(IPQ) Karlsruhe Institute of Technology(KIT)KarlsruheGermany Institute of Microstructure Technology(IMT) Karlsruhe Institute of Technology(KIT)Eggenstein-LeopoldshafenGermany Vanguard Automation GmbH KarlsruheGermany

Multi-photon lithography has emerged as a powerful tool for photonic integration,allowing to complement planar photonic circuits by 3D-printed freeform structures such as waveguides or micro-optical *** structures can be fabricated with a high precision on the facets of optical devices and enable highly efficient package-level chip-chip connections in photonic ***,plain light transport and efficient coupling is far from exploiting the full geometrical design freedom offered by 3D laser ***,we extended the functionality of 3D-printed optical structures to manipulation of optical polarisation *** demonstrate compact ultra-broadband polarisation beam splitters(PBSs)that can be combined with polarisation rotators and mode-field adapters into a monolithic 3D-printed structure,fabricated directly on the facets of optical *** a proof-of-concept experiment,we demonstrate measured polarisation extinction ratios beyond 11 dB over a bandwidth of 350 nm at near-infrared telecommunication wavelengths around 1550 *** demonstrate the viability of the device by receiving a 640 Gbit/s dual-polarisation data signal using 16-state quadrature amplitude modulation(16QAM),without any measurable optical-signal-to-noise-ratio penalty compared to a commercial PBS.

关键词： Photonic integration Additive laser manufacturing Multi-photon lithography Polarisation splitter/rotator

人体毛囊角朊细胞培养技术：在3T3细胞公司养层上的原代及传代培养

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中华皮肤科杂志 1989年第3期22卷 153-155页

作者：夏隆庆 Lehm.,f

Designing Hardware for the Boundary Condition Round Robin Challenge

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Sound & Vibration 2018年第1期52卷 9-12页

作者： David E.Soine Richard J.Jones Julie M.Harvie Troy J.Skousen Tyler f.Schoenherr Kansas City National Security Campus* 14520 Botts RoadKansas CityMissouriUSA Sandia National Laboratories P.O.Box 5800-MS 0840AlbuquerqueNM 87185

Qualification of products to their vibration and shock requirements in a laboratory setting consists of two basic *** first is the quantification of the product’s mechanical environment in the *** second is the process of testing the product in the laboratory to ensure it is robust enough to survive the field *** latter part is the subject of the“Boundary Condition for Component Qualification”challenge *** paper describes the challenges in determining the appropriate boundary conditions and input stimulus required to qualify the *** paper also describes the step sand analyses that were taken to design a set of hardware that demonstrates the issue and can be used by round robin challenge participants to investigate the problem.

关键词： field. Boundary Robin

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珍贵的小龙虾蜕皮化石

古生物学报 2000年第3期39卷 416-417页

作者： f.R.SCHRAM 沈炎彬 ZoologicalMuseum UniversityofAmsterdam 中国科学院南京地质古生物研究所南京210008

淡水小龙虾化石在世界上十分少见。龙虾蜕皮的化石还未曾有过记录。文中讨论热河生物群上侏罗统义县组发现的、保存十分完好的蜕皮化石。判断其蜕皮标本的 3个理由是 :没有保存头胸甲 ;步足与体节之间的关节膜很薄以及几乎看不到磷酸盐... 详细信息

淡水小龙虾化石在世界上十分少见。龙虾蜕皮的化石还未曾有过记录。文中讨论热河生物群上侏罗统义县组发现的、保存十分完好的蜕皮化石。判断其蜕皮标本的 3个理由是 :没有保存头胸甲 ;步足与体节之间的关节膜很薄以及几乎看不到磷酸盐化的软组织。

关键词：小龙虾热河生物群辽宁蜕皮化石上侏罗统

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Antibiotics Resistance Pattern and Plasmid Profiling of <i>Edwardsiella tarda</i>Isolated from <i>Heterobranchus longifilis</i>

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Journal of Biosciences and Medicines 2018年第4期6卷 95-105页

作者： f. C. Ogbonne E. R. Ukazu f. C. Egbe Nigerian Institute for Oceanography and Marine Research Lagos Nigeria

A study was carried out to investigate antibiotic resistance patterns and plasmid profiling of Edwardsiella tarda isolated from farmed-cultured Heterobranchus longifilis in Lagos State, Southwest of Nigeria. A total of 44 Edwardsiella isolates were recovered from 80 fish samples collected from the 10 fish farms using selective random stratification. It was observed that Edwardsiella tarda isolates were 100% resistant to Amoxicillin, Chloranphenicol, Levofloxacin, Streptomycin and 90% resistant to Nalidixic Acid respectively. All the isolates were 100% susceptible to Spectinomycin and Ciprofloxacin, while Ofloxacin, Gentamycin, and Pefloxacin vary in their level of susceptibility with 90%, 80% and 70% sensitivity respectively. Conversely, 8 out of 10 fish farm locations studied were observed to have antibiotic-resistant strains, and 5 out of 8 drug-resistant strains were found to carry plasmid and the sizes of the plasmid ranges between 20.027 kb to 23.130 kb. The plasmid after treatment with mitomycin C and ethidium bromide were lost during the process of plasmid curing confirming that the multiple drug resistant exhibited by the isolates was plasmid mediated. There are fewer studies on antibiotic resistance in Edwardsiella tarda from aquaculture enterprises and this study provides further support to the view that there is a potential risk of transfer of resistant bacteria and their genes to human pathogen through the food chain. Although, in Nigeria there is no antibiotic product registered for aquaculture usage, yet fish farmers use them off-label for bacterial diseases prevention.

关键词： Edwardsiella tarda Plasmid Profiling Antibiotic Resistance Heterobranchus longifilis

Reviewing 40 years of artificial intelligence applied to power systems-A taxonomic perspective

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Energy and AI 2024年第1期15卷 136-150页

作者： f.Heymann H.Quest T.Lopez Garcia C.Ballif M.Galus Swiss federal Office for Energy(SfOE) Section Geoinformation and Digital InnovationIttigenSwitzerland Ecole Polytechnique fédérale de Lausanne(EPfL) Photovoltaics and Thin-Film Electronics Laboratory(PV-LAB)Institute of Electrical and Micro Engineering(IEM)NeuchâtelSwitzerland 3S Swiss Solar Solutions AG ThunSwitzerland Swiss Center for Electronics and Microtechnology(CSEM) Sustainable Energy CenterNeuchâtelSwitzerland Digital Energy and Electric Power Lucerne University of Applied Sciences and ArtsLucerneSwitzerland

Artificial intelligence(AI)as a multi-purpose technology is gaining increased attention and is now widely used across all sectors of the *** growing complexity of planning and operating power systems makes AI extremely valuable for the power *** now,there has been a lack of clarity regarding the specific points along the power system supply chain where AI applications demonstrate significant value,as well as which AI domains are best suited for such *** study employs an AI taxonomy and automated web search to qualitatively and quantitatively unveil the biggest potentials of AI in the power *** analysis,based on a review of 258’919 publications between 1982 and 2022,reveals where AI applications are particularly *** consider six AI domains(reasoning,planning,learning,communication,perception,integration&interaction)and 19 use cases from the power supply chain(i.e.,generation,transmission networks,distribution networks,isolated grids/microgrids,market operations and retail).Our findings indicate that,as of now,the focus is predominantly on AI applications in power retail(55%),transmission(14%)and generation(13%).Most analyzed works describe applications built on algorithms of the AI domains“learning”(45%)and“planning”(14%).Results also suggest that the current definition of AI domains is ambiguous,and they highlight missing information on the actual use and successful implementation of AI in power system use cases.

关键词： Artificial intelligence Power systems Electricity Taxonomy Policy

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后现代的科学技术

国外社会科学 1993年第4期 66-70页

作者： f.费雷陈平

我们用“技术”这个词表示智力的有效实施。用这种方法进行广义的理解,技术在近代才出现的科学之前,已经长期扮演着极其重要的角色了。技术而不是科学,直接与生命和自然界紧密相关。这是人类文化的主要现象。任何文化都有它特有的技术... 详细信息

我们用“技术”这个词表示智力的有效实施。用这种方法进行广义的理解,技术在近代才出现的科学之前,已经长期扮演着极其重要的角色了。技术而不是科学,直接与生命和自然界紧密相关。这是人类文化的主要现象。任何文化都有它特有的技术。当然,受现代科学的影响,主要在近两个世纪中,欧洲技术发生了根本的变化。这些新技术进而在很大程度上改变了现代科学文明。现在我们看到了出现后现代科学的诱

关键词：前现代后现代