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Online since: September 2013
Authors: Zhan Bin Huang, Kai Wang, Hai Hua Jiao, Zhi Hui Bai, Ying Liu
ANOVA for the whole set of data on PLFA contents revealed significant changes between soils treated with and without SAP.
PC1 (72.15%) and PC2 (21.73%) accounted for 93.88% of the variation within the data, soil microbial PLFAs indicated a clear difference between untreated and SAP-amended soils.
Cultivation for 6 months in SAP-treated soils resulted in higher reduction of the TPH content, i.e., CK (31.22 ± 0.5%), wheat (71.75 ± 2.3%), cabbage (70.69 ± 2.1%), and spinach (72.78 ± 2.2%), respectively.
Online since: April 2014
Authors: Xing Mei Guo, Yu Fei Chen, Qiu Yun Zhang, Li Xuan Zeng, Ji Wen Luo
The possible reason is that the reduction of pH value contributes to protonation of three kinds of CTS/REC-ETA, simultaneously forming more NH3+, which makes easier for them to combine with negatively charged methylene blue so as to the improvement of adsorbent capacity [20].
In order to investigate the mechanism of adsorption, two simplified kinetic models including pseudo-first-order and pseudo-second-order equations are usually used.In this paper, the pseudo-second order model is used to study the experimental data obtained.
Figure 9. shows that the adsorption behavior of three kinds of CTS/REC-ETA for MB which are fitted by Freundlich isotherm model shows better fit to the experimental isotherm data than the Langmuir isotherm model.
Online since: June 2014
Authors: Da Song Lin, Xian Guo Lv, Li Li Huo
This study was with a view to enriching the studies on carbon cycle in the Sanjiang Plain; and providing data for accurate estimates and projections of SOC pool under severe land use change in Sanjiang Plain; and providing scientific basis to identify the long-term effects of reclamation on SOC pool, and to adjust the land use structure in the balance between carbon sequestration and emission reduction and guarantying food production.
Data of meadow marsh soil were from reference[12].
Online since: May 2018
Authors: Mauricio Pacio, Héctor Juárez, Abraham Pacio, José Alberto Alvarado, Cesia Guarneros, Rene Pérez-Cuapio, Carlos Bueno
The lattice parameters a and c were calculated from the XRD data.
(2) where c is the lattice parameter of the sample calculated from XRD data and c0 is the lattice parameter of ZnO without strain.
By increasing the ZnO film thickness, the number of nucleation sites increases on the substrate, this let a reduction of pore density and a densification of ZnO films (fig. 5b, 5c, and 5d).
Online since: October 2015
Authors: Diana Cayuela Marín, Waldir Mantovani, Cátia Relvas, Raul Fangueiro, Holmer Savastano, Júlia Baruque-Ramos, Bárbara Maria Gama Guimarães, Welton Fernando Zonatti, Fernando Cunha
Another outstanding factor is related to the reductions in cost and weight of cars [2].
In the present study, according to the data expressed in Table 4, no significant weight changes were observed when the fibers were treated with NaOH 1 N.
This treatment gave to the studied fibers a beneficial effect which increases their transverse dimensions (swelling), increased gloss and smoothness of their surfaces (visually and tactually perceived) (data not shown).
Online since: January 2010
Authors: Volker Cimalla, Oliver Ambacher, V. Lebedev, Klemens Brueckner, Matthias A. Hein, C. C. Röhlig, Katja Tonisch, Florentina Niebelschütz
Generally, MEMS are integrated systems,  which combine electrical and mechanical components in order to  sense its environment (mechanical sensors)  have the ability to react to changes in that environment (actuators), and to  analyze the data (electronics),  which are fabricated by technologies for microelectronic devices, and  which have a size in the order of micro- to millimeter.
The lines represent power-law fits, yielding slopes slightly below -1 for all data sets [19].
Improvements of the actuation and read-out schemes including the reduction of the background signal will be faced next.
Online since: May 2014
Authors: Carlos Relvas, Fernando Simões, Pedro Ferreira
The force signals are processed using the charge amplifiers and recorded by a PC-based data acquisition system.
In this work is placed on the possibility of the increase in the cutting force could be caused by tool wear, while the decrease result could be explained by the reduction in depth of cut, due to severe tool wear [26].
The mean values of Ft and Fa presented were calculated based on the data of Fig. 5 and Fig. 6, taking into account the difference between the highest peak and lowest peak.
Online since: January 2020
Authors: Valentina Anatolyevna Poluektova
It should be mentioned that the present data on the strength of basalt fibers in the concrete alkaline environment are quite controversial.
According to some of them, its strength in cement concretes is relatively constant during the material useful life, according to other data - fibers may destroy within 3 years [11].
Basalt fibers provide microreinforcement and the absence of shrinking deformations, increases the resistance towards crack formation in a composite material as well as facilitates hydration at the initial setting stage (decrease of internal loads) and the reduction of the setting period.
Online since: May 2016
Authors: Evangelos Hristoforou, E.D. Metaxa, K. Berkesi, D. Musmarra, Athanasios G. Mamalis
Furthermore, the oleic acid must be added to the above solution of aqueous alkali containing acetone in specific proportion, namely in a volume ratio of oleic acid to solution equal to 0.01:1.In general, oleic acid was selected as a very effective surfactant and oxidation-protector according to recent literature data [17].
It is observed a small deviation from the corresponding values estimated by using XRD data, but TEM-values are adopted as more accurate reference sizes for MNPs than those of XRD.
Domingues, pH effect on the synthesis of magnetite nanoparticles by the chemical reduction-precipitation method, Quim.
Online since: July 2020
Authors: Gerhard Wachutka, Yaren Huang, Benedikt Lechner
As a first approach, we used the model parameters listed in Table I, as these have been well­proven in predictive simulations of Si PiN diodes and conformed well with measured data [1].
In addition, the physical models describing the temperature­dependence of heat capacity and thermal conductivity have been adjusted to fit the experimental data up to 3000K [7], close to the melting point.
The increase of the hole density cannot compensate the reduction of hole mobility, which degrades from around 16cm2/(V · s) to 10cm2/(V · s).
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