Results 1 to 10 of about 1,753,408 (221)
Imaging of Self‐Assembled Structures: Interpretation of TEM and Cryo‐TEM Images [PDF]
Angewandte Chemie - International Edition, 2010 AbstractThe investigation of solution‐borne nanostructures by transmission electron microscopy (TEM) is a frequently used analytical method in materials chemistry. In many cases, the preparation of the TEM sample involves drying and staining steps, and the collection of images leads to the interaction of the specimen with the electron beam.
Heiner Friedrich +2 more
exaly +3 more sources
Kuangchan zonghe liyong, 2023 Sichuan is an area where there are no fluorite deposits and no fluorite metallogenic belts. The discovery of medium-sized fluorite deposit in Mabian area is of great significance.
Jun Wen +5 more
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Sequences of the Genes for the TEM-20, TEM-21, TEM-22, and TEM-29 Extended-Spectrum β-Lactamases [PDF]
Antimicrobial Agents and Chemotherapy, 1999 ABSTRACT The sequences of the bla TEM genes encoding TEM-20, TEM-21, TEM-22, and TEM-29 extended-spectrum β-lactamases were determined. Analysis of the deduced amino acid sequences indicated that TEM-20 and TEM-29 were derived from TEM-1 and that TEM-21 and TEM-22 were derived from TEM-2.
G, Arlet +3 more
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Revista de Políticas Públicas, 2023 A ascensão da fome no Brasil é um fato relacionado a uma série de fatores, sobretudo pelo processo de desmonte de políticas públicas direcionadas à promoção da Segurança Alimentar e Nutricional. O artigo objetiva analisar o desenvolvimento das políticas públicas de combate à fome no Brasil na perspectiva da atual conjuntura. Para isto, traça o contexto
Maria Alane Pereira de Brito +2 more
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Temperature effect on the tensile properties of unplasticized polyvinyl chloride
SPE Polymers, 2022 The present paper investigates the effect of temperature of unplasticized polyvinyl chloride (UPVC) under tension. UPVC specimens were tensile tested across a range of temperatures (from −20°C to 60°C).
Felipe C. Amorim +3 more
doaj +1 more source
Comparative Studies of Biosynthesized Zinc Oxide Nanoparticles [PDF]
Nanochemistry Research, 2023 Zinc oxide nanoparticles are one of the known safe compounds, and their low toxicity makes them suitable for waste water remediation. An environment-friendly approach of synthesizing nanoparticles is the use of plant extracts which are rich sources of ...
Emmanuel Oyetola
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Comparative Studies of Synthesized Copper Oxide Nanoparticles using Aqueous Extract of Leaves [PDF]
Nanochemistry Research, 2023 The use of plant extracts as reducing agents in the synthesis of metal and metal oxide nanoparticles has come into prominence due to their procedural simplicity, precursor’s eco-friendliness, and cost effectiveness.
Emmanuel Oyetola +5 more
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Cadernos de Estágio, 2022 A presente carta aberta é um desabafo de uma graduanda de Letras, estagiária, observadora e descontente. Direcionada ao presidente do país, o texto relata a experiência do convívio (remoto) com alunos de uma escola estadual em meio à pandemia do Covid-19, realidade permeada por incertezas e agravantes, estes explorados a fundo de forma crítica ao serem
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Journal of Scientific Research in Science, 2023 In this study, Spinel nano ferrite (MFe2O4) ferrite powders were prepared by auto-combustion reaction. Nanoparticles have been synthesized by sol-gel method using citric acid as chemical catalyst while graphene Oxide prepared using Hammer technique and ...
R. Atya, N. Okasha, A.Azab, A.M. Baker
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Fracture and Structural Integrity, 2022 Increased material demand in all sectors is primarily due to exponential growth in population to fulfill human needs and comforts. Recycling of collected aluminium beverage cans and Al 6061 alloy scraps from industries ensures significant advantages in ...
Ganesh R. Chate +8 more
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