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Online since: February 2008
Authors: Jan Ma, L. Yang, T. Sun, H. Cheng, H.H. Hng
The first chemical reaction can be written as: CoCl2·6H2O + 2NaBH4 →Co +2BH3+2NaCl + H2 (1) 3SbCl3 + 9NaBH4 → 3Sb + 9BH3+ 9NaCl+ 9/2H2 (2) In the beginning of the experiments, the reduction of Co 2+ and Sb3+ ions should be fast and completely due to the strong reducing effect of NaBH4.
Powder X-ray diffraction (XRD) data of the final products were collected on a Shimadzu standard diffractometer using Cu Kα radiation (λ = 0.15406nm).
Quantitative phase analysis of the XRD data was conducted using the fundamental parameter Rietveld procedure as implemented in TOPAS (version 2.1).
A reduction in concentration of reactants did play a part in improving the yield of CoSb3.
The yield of CoSb3 increased with reduction of the concentration of starting materials.
Online since: November 2005
Authors: M. Zacharias, Élson de Campos, E.F. Lucena, F.P. Santos, E.M. Marins, J.A.J. Rodrigues
The recycling material of SiC produced by starch consolidation has an economical interest due the reduction of the probable environmental impact in case wide scale production. 2.
This "plug-in" uses as data entrance a group of images, denominated stack, extracted with successive displacements of the graduate ring that controls the focus of the light Nikon model Epiphot 200 microscope [9].
It can be noticed that both are porous and present similar morphologies, confirming the data of the previous tests.
Conclusion In the last years, material recycling has been the objective of many researches that searches the quasi total use of resources and impact reduction to the environment.
The samples obtained from recycling material have a relative increase in the rupture strength due to reduction of the apparent porosity but little variation on the Weibull module.
Online since: December 2014
Authors: Fei Lu, Jian Mei Luo, Jing Po Yang, Jing Chen
In this way the single-species enzyme map generated data is converted to 0-1.
So diversity than 0-1 data and statistical analysis.
Summary By soil bacteria of 16S rDNA RFLP analysis, the different repair pathways chromium contaminated soil so that the soil bacterial community structure diversity of the different changes.By adding Fe(OH) 3 improves the efficiency of the reduction of chromium in the soil, and formed a special soil bacterial communities in a distributed fashion.
Anearobic co-reduction of chromate and nitrate by bacterial cultures of Staphylococcus epidermidis L-02[J].Journal of industrial microbiology& biotechnology,2009,32(9):409-414
Bacterial reduction of hexavalent chromium[J].
Online since: November 2020
Authors: Dmitry V. Mashtalyar, Sergey V. Gnedenkov, Sergey L. Sinebryukhov, Igor M. Imshinetsky, Vladimir S. Egorkin, Konstantine V. Nadaraia, Igor E. Vyaliy, Alexander N. Minaev, Valeriia S. Filonina, Andrey S. Gnedenkov, Andrey P. German
The incorporation of fluoropolymer material and further increase in the multiplicity of application of composite layers contribute to a noticeable reduction in the number of micropores and increase of uniformity of samples` surface.
Coating type PEO-coating CC-1x CC-2x CC-3x CC-4x Porosity [%] 4.05 3.24 2.02 1.59 0.34 Results of analysis of the tribological data (Table 2) showed that the incorporation of a fluoropolymer component has a positive effect on wearproof of formed coatings.
According to the data presented in Fig. 1 and Table 3 the optimal surface morphology was obtained on CC-3x coating among studied samples.
Friction coefficient reduction contributes to an increase of the load value, at which the coating begins to peel off (Lc2), as well as a load required for the coating abrasion until metal (Lc3) (Table 4).
Natural and biomimetic artificial surfaces for superhydrophobicity, self-cleaning, low adhesion, and drag reduction.
Online since: November 2016
Authors: Paula Cipriano da Silva, Roberto de Oliveira Magnago, Claudinei dos Santos, Anderson Carvalho Nogueira, José Vitor Candido de Souza
Table 1 – Ceramic protection specification compared to the provider’s data [7].
The cost of ceramic protection acquisition, as a prototype, had a reduction of 18% on each manufactured piece.
It will be obtained a total reduction on annual costs around 37%.
Moreover, there is an indirect gain related to the reduction of risk agents exposure, due to a lower amount of fibers in the same area unit.
Pensilvania: International Centre for Diffraction Data Swarthmore. 1979.
Online since: September 2013
Authors: Petru Florin Minda, Andrea Amalia Minda, Gilbert Rainer Gillich, Zeno Iosif Praisach
Imagine now that we obtain the relative frequency shift by processing data from measurements for n vibration modes.
Automated recognition of damage location A histogram Y={Yi} is a graphical representation of non-negative data Yi corresponding to n bins, where i = 1…n.
The relative frequency shifts of all measured data for the four analyzed cases are calculated with Eq. 2 and included in Table 3.
Wenzel, The application of statistical pattern recognition methods for damage detection to field data, Smart Mater.
Tabrizian, Damage detection of skeletal structures using particle swarm optimizer with passive congregation (PSOPC) algorithm via incomplete modal data.
Online since: November 2005
Authors: José Arana Varela, M.A. Zaghete, A.A. Cavalheiro, Juliana C. Bruno
The XRD data were used for the structural refinement, performed by the Rietveld method.
The perovskite (Pe) phase amount and the lattice parameter could be obtained from the Rietveld refinement, and the data are shown at Table 2.
Structural data used as model in the Rietveld refinement for 0.9PMN-0.1PT perovskite structure, determined elsewhere in reference [21] and for pyrochlore phase (ICSD: 74328).
Collected data by the Rietveld refinement for the perovskite phase and sintering information about the sintered ceramic samples.
The representative data obtained from the sintering process are also demonstrated in Table 2.
Online since: January 2018
Authors: Mayra Keroly Sales Monteiro, Francisco Klebson Gomes dos Santos, Ricardo Henrique de Lima Leite, Edna Maria Mendes Aroucha, Jussier Oliveira Vitoriano, Victor Rafael Leal Oliveira
The ion exchange held in the clay provokes on gelatin film a reduction of 65% in the water vapor permeability (WVP); a decrease in solubility of 55%; an increase of 35º in drop contact angle of water on the surface of the film; and 30% of raise in opacity.
Based on the above, this study aimed to promote the reduction of hydrophilicity of a gelatin film with sodium bentonite clay or modified by an ion exchange.
Data were collected in triplicate and analysis of statistical significance made according to Duncan method.
Conclusion By the analysis of the results of the films composed of gelatin and bentonite clay with or without ion exchange, it was observed a reduction in hydrophilicity in the gelatin films charged with clays.
Online since: June 2013
Authors: Ling Yun Yan, Peng Fei Wu, Zeng Xian Bao
Input half electromagnet model into Maxwell2D, the results relative to air-gap of armature and change of ampere-turns through static calculation can be obtained; establish data document in the form of AMESim with data of electromagnetic force and inductance relative to air-gap and ampere-turns; and thus complete the data preparation in AMESim simulation of electromagnet.
The 3D curve of data document is as shown in Figure 2 and Figure 3.
Fig.2: Relationship between Electromagnetic Force and Ampere-turns & Air-gap Fig.3: Relationship between Inductance and Ampere-turns & Air-gap Obtain data table of relationship between electromagnetic output force/inductance and ampere-turns & air-gap through Ansoft parametric analysis; import relative data into the solenoid simulation model by adopting the EMLT40 sub-model in AMESim electromagnetic module; establish complete solenoid simulation model, and realize coupling among electromagnetic circuit, mechanical part and hydraulic system, with the model shown in Figure 4. 1: PWM modulation signal; 2: voltage source; 3: electromagnet; 4: medium parameter definition unit; 5: pressure source; 6: valve body; 7: flow sensor; 8: pressure sensor Fig.4: Coupling Simulation Model Analysis of Simulation Structure.
Figure 8 indicates that the reduction of opening and closing time of on-off valve can effectively increase the linear control zone and the largest response frequency, and thus improve the control features of pulse-width adjustment.
Reduction of the opening time and closing time can effectively enlarge the linear control zone of the valve, increase the response frequency, and improve the control performance of pulse-width adjustment.
Online since: February 2007
Authors: Jonathan C. Knowles, E. A. Abou Neel, I. Ahmed
The data was collected from 10 to 100º 2θ with a step size of 0.02º and a count time of 12s on a Brüker D8 Advance Diffractometer (Brüker, UK) in flat plate geometry, using Ni filtered Cu Kα radiation.
The phases were identified using the Crystallographica Search-Match (CSM) software (Oxford Cryosystems, UK) and the International Centre for Diffraction Data (ICDD) database (vols. 1-42). 2.5.
Before running a sample, the machine was calibrated against a 4-point calibration curve, and the data was analysed using the Chromeleon ® software package.
This finding correlated well with the XRD data where the 0.25 and 0.3mol compositions revealed identical phases.
Considering the anion release, the P3O93 species showed the highest release rate which correlated well with the XRD data obtained, as this cyclic species was the dominant phase identified.
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