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各种二茂铁基席夫碱的合成、表征和对革兰氏阳性和革兰氏阴性细菌的抗菌筛选

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无机化学学报 2022年第4期38卷 705-715页

作者： Oladeji S.Olatunde ikhile i.Monisola Mamo Messai Ndungu G.Patrick Ndinteh T.Derek Department of Chemical Sciences Faculty of ScienceUniversity of JohannesburgJohannesburgSouth Africa

合成了10种二茂铁基席夫碱1~10,并采用UV⁃Vis光谱、FT⁃iR、元素分析、1 H和13C NMR谱对其进行了表征。评价了所合成的化合物对11种细菌菌株(枯草芽孢杆菌ATCC19659、产气克雷伯氏菌肠杆菌ATCC13882、粪肠球菌ATCC13047、耻垢分枝杆菌MC2... 详细信息

合成了10种二茂铁基席夫碱1~10,并采用UV⁃Vis光谱、FT⁃iR、元素分析、1 H和13C NMR谱对其进行了表征。评价了所合成的化合物对11种细菌菌株(枯草芽孢杆菌ATCC19659、产气克雷伯氏菌肠杆菌ATCC13882、粪肠球菌ATCC13047、耻垢分枝杆菌MC2155、表皮葡萄球菌ATCC14990、金黄色葡萄球菌ATCC25923、大肠杆菌ATCC25922、阴沟肠杆菌ATCC13047、产酸克雷伯氏菌ATCC8724、奇异变形杆菌ATCC7002、普通变形杆菌ATCC6380)的抗菌活性。抗菌试验结果表明,与标准物萘啶酸和硫酸链霉素对比,合成的席夫碱1~10可抑制产气克雷伯氏菌和粪肠球菌的潜在生长,最低抑菌浓度(MiC)分别为15.6~31.25和31.25~125μg·mL^(-1)。

关键词：抗菌席夫碱萘啶合成抑制

Human-like stereo sensors using plasmonic antenna embedded MZi with space–time modulation control[invited]

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Chinese Optics Letters 2021年第10期19卷 29-37页

作者： A.Garhwal A.E.Arumona P.Youplao K.Ray i.S.Amiri P.Yupapin Amity School of Engineering&Technology Amity University RajasthanJaipurIndia Computational Optics Research Group Advanced Institute of Materials ScienceTon Due Thang UniversityHo Chi Minh CityVietnam Faculty of Applied Sciences Ton Due Thang UniversityHo Chi Minh CityVietnam Division of Computational Physics Institute for Computational ScienceTon Due Thang UniversityHo Chi Minh CityVietnam Amity School of Applied Sciences Amity University RajasthanJaipurIndia

A micro stereo sensor system is proposed for human sensors,where eyes,ears,tongue,nose,body,and brain are applied by six panda rings embedded in a Mach–Zehnder interferometer(MZi).The input power is applied to the upper branch of MZi and propagates within the *** six antennas(sensors)are formed by the whispering gallery modes of the panda *** space–time modulation signal is applied to the MZi lower *** modulated stereo signals can be configured as the plasmon(electron)spin orientations,which can be identified and applied for quantum codes and quantum consciousness.

关键词： micro-optical devices electro-optical devices integrated optics devices

RESONANCE TRANSFORMATiON OF ELECTROMAGNETiC WAVES iNTO SOUND iN METALS iN A MAGNETiC FiELD

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RESONANCE TRANSFORMATION OF ELECTROMAGNETIC WAVES INTO SOUND...

international Conference on Millimeter Wave and far-infrared Technology

作者： i.E.Aronov V.L.Falko A.P.Korolyouk V.i.Khizhny institute of Radiophysics and Electronics Academy of Sciences of the UkrSSR 12 Acad. Proskura St. Kharkov 85 USSR institute of Radiophysics and Electronics Academy of Sciences of the UkrSSR 12 Acad. Proskura St. Kharkov 85 USSR institute of Radiophysics and Electronics Academy of Sciences of the UkrSSR 12 Acad. Proskura St. Kharkov 85 USSR institute of Radiophysics and Electronics Academy of Sciences of the UkrSSR 12 Acad. Proskura St. Kharkov 85 USSR

＜正＞ A theory of the resonance transformation of electromagnetic waves into sound in metals in a d.c. magnetic field is developed. This resonance transformation is discovered experimentally in single tungsten crysta...

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海内存知己——新加坡“国宝”潘受

华文文学 2016年第3期 96-106页

作者：衣若芬新加坡南洋理工大学

潘受享有新加坡国宝级的艺术地位,综观潘受一生的转折变化,从高唱左翼思想的"新兴文学",到舍白话写作而从文言旧体,甚至质疑白话文学的易解性,其间的复杂与矛盾,耐人寻味。本文就潘受的交游、诗歌与书法艺术观,探讨潘受的创作主体意识... 详细信息

潘受享有新加坡国宝级的艺术地位,综观潘受一生的转折变化,从高唱左翼思想的"新兴文学",到舍白话写作而从文言旧体,甚至质疑白话文学的易解性,其间的复杂与矛盾,耐人寻味。本文就潘受的交游、诗歌与书法艺术观,探讨潘受的创作主体意识。他选择以"法度中新变"的方式,树立个人的艺术风格。

关键词：新加坡潘受新兴文学旧体诗书法

Detection of Verocytotoxigenic <i>Escherichia coli</i>O157 Serotype in Dairy Products in Abuja, Nigeria

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Open Journal of Veterinary Medicine 2015年第11期5卷 224-228页

作者： S. i. Enem S. i. Oboegbulem W. D. Nafarnda G. K. Omeiza Dept. of Veterinary Public Health & Prev. Medicine University of Abuja Abuja Nigeria Dept. of Vet. Public Health & Prev. Medicine University of Nigeria Nsukka Nigeria

Ruminants are recognized as healthy carriers of Verocytotoxigenic Escherichia Coli (VTEC) organisms and as such most dairy products may provide these bacteria with favourable conditions for their growth. A cross sectional study was conducted to detect the occurrence of VTEC O157 in dairy products in the Federal Capital Territory, Abuja, Nigeria. Raw milk, Nunu and yoghurt were analyzed using standard cultural and biochemical procedures to isolate typical E. coli. isolated E. coli samples were sub-cultured into plates of sorbitol MacConkey and Cefixime Tellurite-Sorbitol MacConkey agar. isolates that are sorbitol negative were further characterized using commercially procured latex agglutination test kits. A total of 367 samples were analyzed out of which 3 tested positive for VTEC O157 (108 of raw milk-1 (0.93%);127 of Nunu-2 (1.57%) and 132 of yoghurt-none). There was no significant association (p > 0.05) between season and infection with VTEC O157 in dairy products. Dairy products remained a potential vehicle for VTEC O157 infection.

关键词： Detection Prevalence VTEC O157 Dairy Products

Colloidal forming of macroporous calcium pyrophosphate bioceramics in 3D-printed molds

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Bioactive Materials 2020年第2期5卷 309-317页

作者： Ya.Yu Filippov E.D.Orlov E.S.Klimashina P.V.Evdokimov T.V.Safronova V.i.Putlayev J.V.Rau Department of Materials Science Lomonosov Moscow State UniversityMoscowRussia institute of Mechanics Research Lomonosov Moscow State UniversityMoscowRussia Department of Chemistry Lomonosov Moscow State UniversityMoscowRussia istituto di Struttura della Materia Consiglio Nazionale delle Ricerche(ISM-CNR)Via del Fosso del Cavaliere 10000133RomeItaly

A technique for colloidal forming of Ca2P2O7 macroporous bioceramics,based on low-pressure injection molding(LPiM)of a glycerol-water slip containing Ca2P2O7 and Ca(Н2PO4)2 into a plastic mold fabricated via FDM 3Dprinting,was *** reaction between the solid phases of the water containing slip-Ca2P2O7 and Ca(Н2PO4)2,resulting in brushite(CaHPO4·2H2O)formation,led to consolidation of the casting and preserved its complex architecture in the course of mold *** ceramics of Kelvin structure(70%macropores with the sizes from 2 up to 4 mm),based on a pre-defined composition with 10 wt%Ca(PO3)2 and sintered in liquid-phase regime,demonstrated a compressive strength of 1.4±0.1 MPa at a density of 22±2%.in vitro tests on bioactivity in SBF solution,as well as on resorption of the ceramics in model solution of citric acid,were carried out.

关键词： Bioceramics Calcium pyrophosphate Calcium metaphosphate Colloidal forming 3D-printing Kelvin structure

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有机化学习题解答集

有机化学习题解答集

Wear modes in open porosity titanium matrix composites with TiC addition processed by spark plasma sintering

作者： i.L.·芬纲尔(i.L. Finar)

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Transactions of Nonferrous Metals Society of China 2019年第8期29卷 1653-1664页

作者： i. FARíAS L. OLMOS O. JiMéNEZ M. FLORES A. BRAEM J. VLEUGELS Departamento de ingeniería de Proyectos Universidad de Guadalajara 45100 Zapopan Jalisco México instituto de investigaciones en Ciencias de la Tierra - iNiCiT Universidad Michoacana de San Nicolás de Hidalgo 58060 Morelia Michoacán México KU Leuven Department of Materials Engineering Kasteelpark Arenberg 44 B-3001 Heverlee Belgium

This work focused on the influence of TiC reinforcing particles on the tribological properties of titanium matrix composites(TMCs)with open porosity,processed by spark plasma sintering(SPS).Materials composed of an equimolar mixture of Ti and TiH2 with 0,3,10 and 30 vol.% of TiC were sintered at 850 ℃.Nanoindentation and wear tests were carried out to assess the nanohardness and the wear resistance in a tribometer with a reciprocating sliding ball-on-flat *** showed a nanohardness increment from 5 to 14 GPa with increasing TiC *** coefficient of friction(CoF)showed a minimum of 0.2 for 10% TiC grade,which also showed the lowest wear *** the low TiC content sample,adhesive wear with severe plastic deformation was ***,medium content TiC sample showed a mechanical mixed layer(MML),whereas high TiC content composite showed abrasive as the main wear *** conclusion,the wear mechanisms,CoFs and wear volume changed with TiC content.

关键词： porous titanium spark plasma sintering wear titanium matrix composites

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