Nano mechanic
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Part 2 book "An introduction to nanoscience and nanotechnology" by Alain Nouailhat includes content: Mechanics of the living world; the uses of nanotechnologies; nanos are changing the world.
119p muasambanhan09 16-03-2024 1 1 Download
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Ebook "Frontiers in quantum methods and applications in chemistry and physics: Selected proceedings of QSCP-XVIII (Paraty, Brazil, December, 2013)" divided into several sections written by leaders in the respective fields of quantum methodology applied to atomic molecular and condensed matter systems, each containing the most relevant material based on related topics. Recent advances and state-of-the-art developments in the quantum theory of atomic, molecular and condensed matter systems (including bio and nano structures) are presented.
301p nhanphanguyet 28-01-2024 2 2 Download
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In this work, we proposed a mechanically-tunable metamaterial perfect absorber by exploiting a pasted nano silver ink on flexible polyimide substrate. At flat configuration, the proposed structure is acted as a single band metamaterial absorber in which a resonance peak induced at 3.7 GHz with an absorptivity of 99.9%.
10p viplato 02-01-2024 6 3 Download
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This paper assesses recent progress in the development of magnetocaloric microwires and sheds light on the important factors affecting the magnetocaloric behavior and cooling efficiency in microwire systems. Challenges, opportunities, and strategies regarding the development of advanced magnetocaloric microwires are also discussed.
11p vimichaelfaraday 28-12-2023 3 2 Download
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Continued part 1, part 2 of ebook "Sustainable construction and building materials: Select proceedings of ICSCBM 2018" provides readers with contents including: rice husk ash (RHA) - the future of concrete; effect of nano-silica and GGBS on the strength properties of fly ash-based geopolymers; compressive strength prediction of high-strength concrete using regression and ANN models; prediction of compressive strength of high-volume fly ash concrete using artificial neural network;...
446p dangsovu 20-10-2023 6 4 Download
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In this work, the biaxial SnO/ZnO nanowires in the average length of 5 µm, have been successfully synthesized on a ZnO-nanowire substrate using a chemical vapor deposition (CVD) system through a two-step process. First, ZnO nanowires were grown directly on the glass substrate with a gold catalyst.
11p viengels 25-08-2023 3 3 Download
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In this research, the bio-composites based on epoxy resin filled with nano-silica and vinyl copolymer were fabricated using diethylene triamine as a curing agent and casting method. The vinyl copolymer was synthesized from Hydroxyethyl Acrylate and Methacrylic acid using ammonium persulfate as an initiator.
11p viengels 25-08-2023 3 2 Download
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Epoxy resin modified with nano scale fillers offers excellent combination of properties such as enhanced dimensional stability, mechanical and electrical properties, which make them ideally suitable for a wide range of applications. However, the studies about functionalized nano-hybrid for coating applications still require better insight.
12p viberbers 09-08-2023 4 3 Download
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Graphene has been extensively considered as an ideal additive to improve the mechanical properties of many composite materials, including rubbers, because of its novel strength, high surface area, and remarkable thermal and electron conductivity. Styrene Butadiene Rubber (SBR) is considered a good material for abrasion resistance conveyors in industries.
7p visybill 19-07-2023 5 3 Download
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In the present work, LLTO nano-powder was prepared by the high-energy ball milling technique. The as-prepared nano-powder was sintered by SPS technique for different isothermal hold durations. The microstructure, ionic conductivity properties were investigated in detail.
10p vispiderman 15-06-2023 3 2 Download
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Nano-Electro-Mechanical Systems (NEMS) have recently allowed the in vitro molecular recognition. Most the detection, so far, is based on the harmonic oscillation regime, albeit nano mechanical resonators can easily reach the nonlinear vibrations. In this work, we have studied the nonlinear performance of carbon nanotube (CNT)-based NEMS for mass sensors using a continuum elastic model such as a beam model.
6p vidoctorstrange 06-05-2023 3 3 Download
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The limits of current micro-scale technology is approaching rapidly. As the technology is going toward nano-scale devices, physical phenomena involved are fundamentally different from micro-scale ones. Principles in classical physics are no longer powerful enough to explicate the phenomena involved in nano-scale devices. At this stage, quantum mechanic sheds some light on those topics which cannot be described by classical physics. The primary focus of this research work is the development of an analysis technique for understanding the behavior of strongly perturbed harmonic oscillators.
165p runthenight07 01-03-2023 4 2 Download
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The improvement of thermal protection properties of materials to diversify the thermal protection material family is a growing trend. Accordingly, this paper focuses on determining the influence of the percentage of carbon nano powder (0-14%) on the thermal, physical and mechanical properties of carbon fiber/phenolic matrix composite (CPC) in order to find out the extent of reasonable proportion of carbon powder to improve thermal protection.
7p visirius 19-01-2023 6 2 Download
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Cellulose nanowhiskers (CWs) extracted from cotton fibers were successfully modified with distinct anhydrides structures and used as additives in poly(vinyl alcohol) (PVA) nanocomposite films. The surface modification of CWs was performed with maleic, succinic, acetic or phthalic anhydride to compare the interaction and action the carboxylic groups into PVA films and how these groups influence in mechanical properties of the nanocomposites.
10p vihermione 06-01-2023 11 2 Download
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Hydrogels based on biopolymers like Gum Arabic (GA) usually show low applicability due to weak mechanical properties. To overcome this issue, (nano)fillers are utilized as reinforcing agents. Here, GA hydrogels were reinforced by chitin nanowhiskers (CtNWs, aspect ratio of 14) isolated from the biopolymer chitin through acid hydrolysis.
12p viginny 30-12-2022 7 2 Download
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In this article, improving the composite properties through mechanical stretching of the MWCNT sheets was studied. Mechanical stretching of the MWCNT sheets considerably improved the mechanical properties of the composites.
5p vispyker 16-11-2022 3 1 Download
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Two series of SrFe12O19/Fe3O4 nanocomposites were prepared using mechanical mixing method from SrFe12O19 and Fe3O4 nano powders and sol-gel method combined with hydrothermal method. The phase composition, surface morphology and magnetic properties of these samples were investigated using XRD, SEM, Raman and VSM.
5p vimelindagates 18-07-2022 3 2 Download
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Applying nano-silica, as cementitious materials in concrete mixes, is expected to be an improving technique, from both mechanical properties and durability points of view. Th is study aims to analyse the characteristics of fractures in concrete beams incorporating nano - silica in bending tests, such as fracture energy, characteristics of crack length, and crack propagation.
6p vistephenhawking 26-04-2022 7 1 Download
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The mechanism of dye-adsorbent interaction is described on the basis of zero-point charge and zeta potential techniques. Batch adsorption studies on MCH NM show excellent adsorption activity of 199.02 mg/g in 22 min towards RB13 dye, maximum value ever reported for any reactive dye. Equilibrium adsorption data and adsorption kinetics were well fitted into Langmuir isotherm model and pseudo second order model predicting chemically rate controlled monolayer adsorption.
9p thebadguys 15-01-2022 9 0 Download
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This work aims to clarify the difference between the influence of TiO2 particles at micrometer and nanometer sizes on the mechanical properties and weathering durability of waterbased acrylic coatings. To prepare coatings, micro-R-TiO2 and nano R-TiO2 particles with 2 wt.% content were dispersed in the emulsion acrylic polymer by ultrasonic vibration.
8p parasite 02-06-2021 8 1 Download