BI methods
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In this paper, the free vibration of a bi-directional functionally graded (2D-FG) nanobeams is investigated by the finite element method. Nanobeams are made of two kinds of porous materials. The material properties of 2D-FG nanobeams are assumed to vary in both axial and thickness directions according to a power law . Based on Eringen's nonlocal elasticity theory, the governing equations of motion are derived.
10p dathienlang1012 03-05-2024 0 0 Download
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With the aim of inferring phylogenetic relationships among 86 species (including 45 species from Vietnam) mostly of the subfamily Convallarioideae (=Nolinoideae) (Asparagaceae sensu APG IV), we analyzed their chloroplast DNA sequences (rbcL and trnL-F) by both Bayesian inference (BI) and maximum likelihood (ML) methods. Our dataset included six of the seven tribes classified in this subfamily; Convallarieae, Dracaeneae, Liriopeae Nolineae, Polygonateae and Rusceae (Eriospermeae not examined).
17p dianmotminh02 03-05-2024 3 2 Download
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In this study, nano BiFeO3 powders were successfully synthesized by co-precipitation method which dissolved PVA in water with Bi/Fe/PVA = 1/1/3 molar ratio, at pH = 12. Research results showed that BiFeO3 nano powders have been formed at a temperature of 110ºC after 4 hours of drying.
7p vilarry 01-04-2024 4 1 Download
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Ebook "Electrochemical methods in archaeometry, conservation and restoration" includes both electrochemical processes such as corrosion and electroanalytical techniques allowing to analyse micro- and nanosamples from works of art or archaeological finds. While this volume is primarily aimed at electrochemists and analytical chemists, it also contains relevant information for conservators, restorers, and archaeologists.
177p manmanthanhla0201 27-02-2024 2 1 Download
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Continued part 1, part 2 of ebook "Social and demographic accounting" provides readers with contents including: decompositions of regional input-output tables; consistency in regional demo-economic models - the case of the northern Netherlands; a CGE solution to the household rigidity problem in extended input-output models; operationalising a rural-urban general equilibrium model using a bi-regional SAM; combating demographic innumeracy with social accounting principles;...
127p mocthanhdao0210 19-11-2023 9 4 Download
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Ebook "Data mining patterns - New methods and applications" includes content: Metric methods in data mining, bi directional constraint pushing infrequent pattern mining, mining hyperclique patterns - a summary of results, finding patterns in class labeled data using data visualization, summarizing data cubes using blocks,...and other contents.
324p haojiubujain07 20-09-2023 5 4 Download
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This study has focused on the development of the method LC-MS/MS to determine 2,2-bis(4-hydroxyphenyl)propane (bisphenol A: BPA) and 4,4’-dihydroxydiphenylmethane (bisphenol F: BPF) in indoor samples by using ultrasonication extraction and solid-phase extraction for preparation.
10p viberkshire 09-08-2023 7 5 Download
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Part 1 of ebook "Global logistics management" presents the following content: daily planning for three-echelon logistics associated with inventory management under demand deviation; new local search algorithm for vehicle routing problem with simultaneous pickup and delivery; optimal fencing in airline industry with demand leakage; bi-objective berth–crane allocation problem in container terminals; route selection problem in the arctic region for the global logistics industry;...
188p dieptieuung 14-07-2023 8 2 Download
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This study assesses the antioxidant potential of mushroom Calocybe indica with the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical and 2,2′-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS) radical scavenging methods and the total antioxidant capacity.
8p vispiderman 15-06-2023 5 1 Download
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In this work, the encapsulation of [CdBr6]4- by six cations, [Co(dien)2]3+ has been described with the help of single crystal X-ray structural study in the complex, mer-[Co(dien)2]2[CdBr6]Br2. The complex anion, [CdBr6]4- has been obtained through solution method while attempting to synthesize complex dianion, [CdBr4]2-. This newly synthesized complex has been initially characterized by elemental analyses and spectroscopic studies (IR, NMR and UV-Visible).
12p lyhuyenthu 31-01-2023 3 2 Download
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In the family Araceae, Arisaema Mart is one of the largest genera with 200 species in the world, and mainly distributed in the temperate and warm-temperate areas from the East to South-East of North America to northern Mexico, from tropical East and North-East Africa to the Arabian Penisula, and from temperate East Asia to South and South-East Asia and Malesia.
7p vikoenigsegg 26-09-2022 8 4 Download
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The paper introduces a method for automatic translation of Vietnamese text into Muong speech in two dialects, Muong Bi - Hoa Binh and Muong Tan Son - Phu Tho, which are all unwritten dialects of the Muong language. Due to the very close relationship between the Vietnamese and Muong languages, the translation system was built to look like a cross-lingual speech synthesis system, in which the input is the text of one language (i.e., the Vietnamese) and the output is the speech of another language (i.e., the two Muong dialects).
10p vibentley 08-09-2022 16 4 Download
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The MnBi low temperature phase with high value and positive temperature coefficient of its coercivity has a potential for production of both the nanocomposite and hybrid permanent magnets. The report "Fabrication of Mn-Bi Nanoparticles by High Energy Ball Milling" present our results of investigation of fabrication of Mn55Bi45 nanoparticles by using high energy ball milling method.
5p runordie3 27-06-2022 6 2 Download
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The phylogenetic relationship of 83 taxa of Santalaceae s.l. was reconstructed based on the molecular data sets including the nuclear ribosomal (small and large subunit rDNA) and the chloroplast rbcL, matK, and trnL-F regions. The Maximum likelihood (ML) and Bayesian inference (BI) methods were used to build the phylogenetic trees.
8p viellenkullman 13-05-2022 6 1 Download
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This study presents the process of synthesizing BiFeO3 by the Gel – Polymer combustion method under optimal condition, selected through the investigation of influencing factors and the characteristic of materials, including the Gel formation temperature (80°C), the molar ratio of Bi/Fe (1/1), the molar ratio of the mixture metal/PVA (1/3), pH=1, and the sample is heated at 500oC for 2 hours.
9p viindranooyi 07-05-2022 19 1 Download
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Head fixation can induce hemodynamic instability. Remifentanil is commonly used with propofol for total intravenous anesthesia (TIVA) during neurosurgery. This study investigated the 90% effective concentration (EC90) of remifentanil for blunting of cardiovascular responses to head fixation during neurosurgery via bispectral index (BIS) monitoring.
7p vampires36 30-12-2021 15 0 Download
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A simple synthetic method is reported for the preparation of some new phosphorus macrocycles in which the pyrazole rings are appended to a phosphorus atom. The methodology is based on the cyclocondensation reaction of bis(4-formylpyrazolyl) phosphine oxides (1a, 1b) with nitrogen nucleophiles that contain active terminal amino groups. The antimicrobial activities of the synthesized compounds were assayed.
10p langthannam 29-12-2021 7 0 Download
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Determination of zineb in tap water and tomato samples by adsorptive catalytic stripping voltammetry
This paper describes a sensitive and accurate adsorptive catalytic stripping voltammetric method for the determination of zineb (zinc ethylene-bis- dithiocarbamate) in tap water and tomato samples. The method is based on the reduction of adsorbed zineb at a hanging mercury drop electrode following its catalytic oxidation using peroxydisulfate as an oxidizing reagent. Chemical and instrumental parameters of the process were optimized.
9p langthannam 29-12-2021 11 0 Download
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2,2’-[1,4(1,3)-Phenylenedi(methylene)]bis-1H-benzimidazole derivatives were obtained from the reaction of 1,4- or (1,3)-bisiminoester hydrochloride and o-phenylenediamine derivatives under microwave irradiation. Ester and hydrazide derivatives were prepared from a free NH group. This practical method revealed good results for yield, reaction time, and quick isolation of products.
7p langthannam 29-12-2021 12 0 Download
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We have developed a simple synthetic methodology for bis-spirocycles and spiroindole derivatives starting with a commercially available 6-bromo-2-tetralone. Here, we have used Fischer indolization, ring-closing metathesis, and Suzuki–Miyaura cross-coupling as key steps to assemble a variety of spirocyclic frameworks. The methodology developed here is simple and it may be useful to prepare various spirocycles containing indole moiety.
9p langthannam 29-12-2021 6 0 Download