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Valuable chemicals identified from flourensia species using vacuum and analytical pyrolysis

JOURNAL Of ANALYTICAL AND APPLIED PYROLYSIS 2022年 161卷 105382-105382页

作者： Silva, Mariana P. Nieva Lobos, Maria L. Larson, Tony R. McQueen-Mason, Simon Gomez, Leonardo D. Laura Moyano, E. Scopel, Ana L. Univ Buenos Aires CONICET UBA INBA Estn Biol SierrasFac Agron Delegac Punilla Casilda S-N RA-5174 Cordoba Argentina Univ Nacl Cordoba INFIQC CONICET Dept Quim Organ Fac Ciencias Quim Cordoba Argentina Univ York Biosci Technol Facil Biol Dept Wentworth Way York YO10 5DD N Yorkshire England Univ York Biol Dept CNAP Wentworth Way York YO10 5DD N Yorkshire England

The genus flourensia, present throughout most of the Americas has been identified as a source of renewable chemicals. Here, we characterized the aerial biomass and matrix polysaccharides of flourensia campestris, f. oolepis and f. riparia, and explored their potential as a source of chemicals through the study of two techniques: analytical pyrolysis (PY-GC/MS) and vacuum pyrolysis (VP). In all species, hemicellulose was more abundant than cellulose and lignin, with galacturonic acid being the most abundant monosaccharide. Bio-oils from VP exhibited a complex combination of phenols, terpenes, furans and nitrogen-containing compounds which have a wide range of industrial applications. Differences between the composition of VP pyrolytic oils derived from the mixture of leaves and stems or from individual organs suggest possible interactions between biopolymers. Combining PY-GC/MS and principal component analysis (PCA) we identified fingerprints for leaves and stems of the three flourensia species.

关键词： Py-GC MS Metabolite fingerprints f campestris f oolepis f riparia

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A Mayfly for Prof. Hegel:Herbart's forgotten Review of Hegel's Rechtsphilosophie

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CRITICAL REVIEW 2021年第3-4期33卷 277-288页

作者： Beiser, frederick Syracuse Univ Philosophy 541 Hall Languages Syracuse NY 13244 USA

Herbart and Hegel were contemporaries and both became famous, in their time and thereafter. It would be interesting therefore to know what they thought of one another. We could easily answer this question if they reviewed one another. Hegel never reviewed Herbart;but Herbart did review Hegel. Though in his later years Herbart protested that he did not want to engage with Hegel, he had already written, in 1822, one of his longest and most important reviews, which was of Hegel's Philosophie des Rechts. Herbart maintained that there is a Spinozistic element to Hegel's political philosophy which equates right with might. Hegel tried to avoid the implications of this equation by bringing Kantian transcendental freedom into his system, which for him boiled down to the idea of dialectical development. But Herbart rejected the fundamental idea behind dialectical development: that the ego posits the opposite of itself. Herbart then criticized Hegel's attempt to revive natural law and his theory of the state. Herbart contended that reason cannot prove the fundamental principles of natural law, that reason by itself is an abstract and formal power and as such cannot demonstrate any principle having substantive content. And Herbart criticized Hegel's doctrine that the individual finds his identity only in the state. Much more liberal than Hegel, Herbart stressed the importance of individuality outside the state.

关键词： Hegel J f Herbart Schelling Spinoza natural law

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Experimental investigation on corrosion of structural steels in molten Pb-Mg and LBE

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NUCLEAR MATERIALS AND ENERGY 2022年 33卷

作者： Zhao, Li Yao, Cunfeng Zhang, Hongpeng Wang, Zhiguang Xu, Hushan Duan, Zhiguo Qin, Chang Chinese Acad Sci Inst Modern Phys Lanzhou 73000 Peoples R China Univ Chinese Acad Sci Sch Nucl Sci & Technol Beijing 100049 Peoples R China Adv Energy Sci & Technol Guangdong Lab Huizhou 516000 Peoples R China Huizhou Res Ctr Adv Energy & Mat Huizhou 516000 Peoples R China

Lead and its alloys are commonly used as coolant and liquid spallation neutron targets for advanced nuclear reactors and ADS systems. Pb-Mg alloy may be a potential coolant and maintain an acceptable corrosion rate without additional oxygen control in comparison with LBE. A comparative study on corrosion behavior of two f/ M steels (SIMP, T91) and two austenitic steels (316L, 15-15Ti) in liquid Pb-Mg and LBE at 550 C for 1000 h has been studied in this work. In Pb-Mg, f/M steels show slight dissolution corrosion and austenitic steels show severe dissolution corrosion. In LBE, all steels form oxide layers and a three-layer structure is observed in f/M steels.

关键词： Liquid metal corrosion Pb-Mg LBE f M steels Austenitic steels

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斯威G01 f版:“小鲜肉”C位出道

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汽车观察 2019年第1期 52-53页

作者：郑劼 AO

SWM斯威汽车全系产品在广州车展集体亮相,并带来最新改款车型斯威G01 f。2019年,斯威将从智能化与新能源共同发力,争取更上一层楼。灯光熠熠的T型台、劲爆热烈的电子舞曲,模特们身着'奇装异服'与rapper歌手互动,花式篮球和街舞... 详细信息

SWM斯威汽车全系产品在广州车展集体亮相,并带来最新改款车型斯威G01 f。2019年,斯威将从智能化与新能源共同发力,争取更上一层楼。灯光熠熠的T型台、劲爆热烈的电子舞曲,模特们身着'奇装异服'与rapper歌手互动,花式篮球和街舞也'挤'上了舞台……如果你看腻了四平八稳的新车发布会,来SWM斯威汽车展台,一定能够大开眼界。2018年11月16日,SWM斯威汽车G01 f版正式'C位出道',共推出1.5T^6MT/6AT七款车型,售价10.39万元~14.79万元。与此同时,旗下SWM斯威X7、SWM斯威G01等全系家族产品济济一堂,共同亮相。

关键词：汽车行业 G01 f SUV 足球比赛足球队

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Multiscale modeling assessment of the interfacial properties and critical aspect ratio of structurally defected graphene in polymer nanocomposites for defect engineering

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EUROPEAN JOURNAL Of MECHANICS A-SOLIDS 2022年第0期96卷

作者： Shin, Daeun Jeon, Inseok Yang, Seunghwa Chung Ang Univ Sch Energy Syst Engn Mech Engn Div 84 Heukseok RoDongjak Gu Seoul 06974 South Korea

Low-dimensional nanocarbon reinforcements in multifunctional composites have neither defect-free conjugate structures nor efficient interfacial properties in general. Moreover, synthesizing polymer nanocomposites in-volves intrinsic and extrinsic structural defects, which undoubtedly degrade the properties of the nanocarbons. However, several advantages and even useful applications of such structural defects have pioneered the defect engineering of nanocarbon structures. Here, we assessed the reciprocity of the degradation of single-layer gra-phene and the tailoring of the interfacial load transfer by structural defects. for this purpose, we used a mo-lecular dynamics simulation and its hierarchical bridging to a mean-field micro-mechanics model for linear elastic behavior. Crystallographic defects and oxygen functionalization were considered the representative intrinsic and extrinsic defects, respectively. Despite the notably degraded elasticity of the nanocomposites involving direct load bearing by the defected graphene, those readily governed by the interfacial load transfer were significantly improved. The contributions of both types of defects to the interface were verified using the local stress concentration on the embedded graphene during the mechanical loading of nanocomposites and an additional mode I and II decohesion test. Lastly, the critical aspect ratio of graphene that maximizes the effects of the defects on the interface stiffness of the nanocomposites was derived for defect engineering.

关键词： A Nanocomposites B Defectengineering C Graphene D Interface E Molecular dynamics simulation f Micromechanics

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Effect of minor addition of Ce on microstructure and LBE corrosion resistance for CLAM steel

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CORROSION SCIENCE 2022年 209卷

作者： Luo, Wenwei Huang, Qunying Luo, Lin Xiao, Zunqi Wei, Jie Cao, Haibo Chinese Acad Sci Inst Nucl Energy Safety Technol Hefei Inst Phys Sci Hefei 230031 Anhui Peoples R China Univ Sci & Technol China Hefei 230026 Anhui Peoples R China

Ce-CLAM specimens were exposed to lead-bismuth eutectic (LBE) for 1500 h under 10-6 wt% oxygen concen-tration at 500 degrees C. The continuity and integrity of the oxide scale were better in Ce-CLAM specimens than in CLAM specimens, and the parabolic rate constant kp of oxide scale growth was only about 1/2 that of CLAM specimens. Ce-CLAM specimens exhibited better LBE corrosion resistance compared with CLAM specimens, which was mainly attributed to the inhibition function for fe out-diffusing and the improvement for grain boundaries from Ce. A model was proposed to illustrate the mechanism of Ce-CLAM's LBE corrosion resistance.

关键词： Ce addition LBE Corrosion resistance f M steel Triple junction

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Application of Quasi ‘ f ’ power Increasing Sequences in Absolute Summability

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Procedia Computer Science 2018年 125卷 591-597页

作者： Smita Sonker Alka Munjal Department of Mathematics National Institute of Technology Kurukshetra Haryana-136119 INDIA

A theorem has been developed to acquire a set of conditions which is sufficient for an infinite series to be a generalized Cesàro φ -| C, α; δ | k summable using a wider class of sequence. further, a conventional result has also been deduced from the main results under suitable conditions, which is a validation of the present result by the previous result. Using quasi ‘f ’ power increasing sequence, the Bounded Input Bounded Output (BIBO) stability of impulse response has been improved for modelling an infinite series to be absolute summable by estimating sufficient conditions which are also necessary and sufficient conditions for an infinite series to be BIBO stable.

关键词： Absolute summability Generalized Cesàro summability Infinite series Quasi ‘ f ’ power increasing sequences

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Land Surface freeze/Thaw Detection Over the Qinghai-Tibet Plateau Using fY-3/MWRI Data

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IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING 2022年 60卷 1页

作者： Wang, Jian Jiang, Lingmei Wu, Shengli Zhang, Cheng Chen, Yingying Li, Heng Yang, Jianwei Pan, fangbo Cui, Huizhen Beijing Normal Univ State Key Lab Remote Sensing Sci Beijing 100875 Peoples R China Beijing Normal Univ Chinese Acad Sci Aerosp Informat Res Inst Fac Geog Sci Beijing 100875 Peoples R China China Meteorol Adm Natl Satellite Meteorol Ctr Beijing 100081 Peoples R China Chinese Acad Sci Inst Tibetan Plateau Res Beijing 100101 Peoples R China Chinese Acad Sci Ctr Excellence Tibetan Plateau Earth Sci Beijing 100101 Peoples R China Beijing Normal Univ Fac Geog Sci State Key Lab Earth Surface Proc & Resource Ecol Beijing 100875 Peoples R China

The spatial extent and duration of soil freeze/thaw (f/T) control water and heat exchange, the energy cycle, and climate change. Global warming causes permafrost thawing, which increases carbon emissions and in turn exacerbates climate change. Passive microwave remote sensing has been proven to be effective in monitoring land surface f/T. However, it was found that the applicability of existing passive microwave remote sensing-retrieved f/T products in large-scale areas [such as the Qinghai-Tibetan Plateau (QTP)] was influenced by some landscape factors, such as the arid climate type and terrain elevation gradient. fengYun-3 (fY-3) series satellites have accumulated nearly ten years of passive microwave data, but there is little work based on fY-3 passive microwave data to see its potential in land surface f/T status monitoring. In this work, we proposed a dynamic method to determine the surface f/T status by combining the edge detection method and discriminant function algorithm from fengYun-3B (fY-3B) X- and Ka-band microwave radiation imager (MWRI) data. Comparing the results against three f/T products based on in situ 5-cm soil temperature, we demonstrate that this algorithm performs best over different validation areas with an overall accuracy of 86.5%. More specifically, the new algorithm improved the accuracy of current f/T products in arid and semiarid regions from 73% to 90%. Additionally, the spatial distribution of frozen days over the QTP of 2018 based on the new algorithm has good consistency with the permafrost map. However, the accuracy is influenced by snowmelt and appears to be overestimated for thaw soil during the day. This algorithm performs well in QTP areas with complex topography and climate types and holds the promise of providing users with highly accurate f/T products on larger and even global scales.

关键词： Soil Land surface Temperature measurement Meteorology Microwave imaging Microwave theory and techniques Microwave radiometry Dynamic freeze thaw (f T) classification algorithm f T fengYun-3B (fY-3B) microwave radiation imager (MWRI) fengYun-3D (fY-3D) MWRI Tibetan Plateau

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HiPIMS and Rf magnetron sputtered Al0.5CoCrfeNi2Ti0.5 HEA thin-film coatings: Synthesis and characterization

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SURfACE & COATINGS TECHNOLOGY 2022年 449卷

作者： Kipkirui, Ngetich Gilbert Lin, Tzu-Tang Kiplangat, Rotich Sammy Lee, Jyh-Wei Chen, Shih-Hsun Natl Taiwan Univ Sci & Technol Dept Mech Engn Taipei 10607 Taiwan Ming Chi Univ Technol Dept Mat Engn New Taipei Taiwan Ming Chi Univ Technol Ctr Plasma & Thin Film Technol New Taipei Taiwan Natl Tsing Hua Univ High Entropy Mat Ctr Hsinchu 30013 Taiwan

High entropy alloy (HEA) thin-film coatings have gained popularity in surface engineering applications because of their excellent physical, mechanical, and electrochemical properties. Several factors affect thin-film coating density and microstructure, but most notably, the energy of the species impacting the substrate (adatoms);therefore, the deposition process is crucial. Hardness, wear resistance, toughness, corrosion-resistant, and high/ low-temperature behavior can be significantly influenced by the microstructure of thin-film coatings. In radio frequency (Rf) magnetron sputtering, plasma can be maintained throughout the chamber at lower pressure, so fewer ionized gas collisions occur, and coatings are deposited more efficiently. In comparison, the high-power impulse magnetron sputtering (HIPIMS) coating process produces much denser, harder, and smoother coat-ings than conventional thin-film deposition techniques. This study utilized Rf magnetron sputtering and HiPIMS techniques to deposit Al0.5CoCrfeNi2Ti0.5 HEA thin-film coatings. The coatings presented an fCC structure with a (111) preferred orientation, and their surfaces changed from nodular to fine microstructures. The crystallite sizes and surface roughness decreased to 13.27 and 1.33 nm, respectively, based on fWHM and AfM analyses. The lower working pressures were beneficial for obtaining coatings with good properties. furthermore, the Al0.5CoCrfeNi2Ti0.5 HEA thin-film coatings improved the corrosion resistance of the SS 304 substrate. In sum-mary, HiPIMS and Rf magnetron sputtering processes allow for better control of the properties of Al0.5CoCr-feNi2Ti0.5 thin-film coatings, enhancing their potential use in extreme environments.

关键词： HEAs HiPIMS R f magnetron sputtering Thin-film coatings Al 0 5 CoCrfeNi 2 Ti 0 5

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Civil Society in the Shadow of the Neoliberal State Corporations as the Primary Subjects of (Neoliberal) Civil Society

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INTERNATIONAL JOURNAL Of POLITICS CULTURE AND SOCIETY 2021年第2期34卷 161-174页

作者： Jessen, Mathias Hein Copenhagen Business Sch Dept Management Polit & Philosophy Porcelaenshaven 18B DK-2000 Frederiksberg Denmark

In this paper, I outline an approach to civil society that is in contradistinction to the dominant liberal conception of civil society as a sphere or sector distinct from the state with inherently positive values. Instead, I argue, civil society always exists in the shadow of the state. I propose to advance a conception of civil society through the combination of two thinkers who are not often combined: G.W.f. Hegel and Michel foucault. from Hegel, I take the conception of the state's regulation of civil society to direct the particular interests towards the universal of the state through the police and, especially, the corporation. By incorporating a specific type of civil society, the state attempts to shape a civil society that advances its own interests. from foucault, I take the conception of civil society as a transactional reality, as well as the conception of neoliberalism as a form of statecraft and the production of subjects. I propose that neoliberalism can be understood as the promotion of the corporate form to all areas of social life. In neoliberalism, the central wealth-producing subject is the corporation, and as a result, the state privileges the corporation by granting it extensive powers, privileges, and exemptions from law. This happens to the detriment of both individual and other collective subjects, making it the primary subject of neoliberal civil society.

关键词： Civil society State Neoliberalism G W f Hegel Michel foucault Corporation

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