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Online since: March 2016
Authors: Nalan Oya San Keskin, Nur Koçberber Kılıç, Gönül Dönmez, Turgay Tekinay
Size Distribution To estimate the particle size distribution, a colloidal solution of nanoparticle was subjected to data acquisition using Zetasizer Nano Instrument (Malvern, UK) and measurements.
One of the disadvantages of the enzymatic reduction of silver is the slow rate of the reaction.
The time required for reduction ranges has varied between 24 and 120 h.
The non-enzymatic reduction is often fast, taking only a couple of minutes.
The non-enzymatic reduction of silver is based on the chemical reduction where the reducing and stabilizing compounds are produced by microorganisms or plants.
Online since: August 2014
Authors: Zhao Gang, Zhuang Zhi Sun, Yan Xu, Chang Shun Ma
THE PREPARATION OF IPMC The experiment adapted here involved the chemical decomposition method of preparing silver-based IPMC primarily by chemical reduction and dividing final treatment process into two branches.
Fig.1 IPMC preparation process procedure 2.1 Preparing IPMC by chemical reduction IPMC is composed of an inner ionic polymer film with two outer metal electrodes.
The chemical reaction equation adopted for the chemical reduction method of ionic polymer film plates of Nafion-117 with Silver (Ag), is shown in type (1).
The chemical reduction process diagram is shown in figure 2. 2Ag(NH3)2OH+C6H12O6→2Ag↓+C6H11O7 NH4+3NH3+H2O (1) Fig.2 Chemical reduction process diagram The chemical reduction pretreatment process for preparation of IPMC is divided into the basement membrane and the silver plating reduction reaction process.
Fig.5 Tip output displacement of IPMC which had ion exchange for different exposure durations From this novel test, the experimental data obtained showed that: samples with 1, 2 and 3 hour ion exchange exposure times showed gradual increase in their displacement with time.
Online since: March 2016
Authors: Kehinde O. Ogunniran, Tolutope O. Siyanbola, Cyril O. Ehi-Eromosele, Joseph A. Adekoya, Benedict I. Ita, Emeka E.J. Iweala
Therefore, the XRD data suggests that the silica shell consists mainly of amorphous phase rather than polycrystalline one [36] since there is the absence of silica-derived diffraction peaks.
The reduction in the calculated crystallite size which had also caused the reduction in other structural properties might be due to the size selection process done to disaggregate the particles.
Some researchers have reported the reduction in the crystallite size of nanoparticles after coating [37].
The reduction in magnetization might also be due to the lesser amount of magnetic substance per gram in the silica coated sample compared with the bare sample [5].
A reduction in magnetization was also reported for silica coated LSMO particles [25].
Online since: March 2015
Authors: Antonio Del Prete, Emilia Mariano, Francesco Nucci, Antonio Grieco
For this reason, energy consumption reduction is critical aspect in several industrial environments.
A reduction in power consumption is possible by a modifying manufacturing conditions, for instance utilizing alternative technologies and increasing resource utilization rate.
Production planning and scheduling models, arising in flexible manufacturing environments, allows to combine several aspects such as: technological questions (e.g.: minimize manufacturing times and costs) economic criteria (e.g.: maximize production rate) and environmental prospective (e.g.: emissions reduction).
The data collection of specific electrical energy requirements was used by Gutowski et al. [7] to redesign a wide range of manufacturing process minimizing energy use.
This leads to an actual reduction of energy usage.
Online since: October 2011
Authors: Yi Zhu, Li Fa Wang, Xi De Lai
Results show that the guide bearing stiffness has a significant impact on the lateral vibration characteristics of the location of the unit, which provides a reference for the reduction of vibration and the optimization of the supporting structure of the turbine unit.
Large-scale hydro-generating units are generally rigid design, and because the hydro-generating set operating speed and runaway speed is relatively low, generally lower than the first-order natural frequency of transverse vibration, and from the data in Tables 1 to 4, we can get the first-order natural frequency of transverse vibration and the relationship between the guide bearing stiffness curves in Figure 5.
Since the vibration displacement of exciter, with the reduction of the bearing stiffness, reduced first, and then increased, it explains that when the up-turbine guide bearing stiffness is too large, and it has a negative impact of the reduction of exciter’s vibration.
According to the data in Table 1 and 4, the value of the up-turbine guide bearing stiffness must be carefully chosen.
Online since: June 2014
Authors: Yu Ting Gao, Jia Rong Gao
While the loss of the original variable are minimized in river analysis variables, which contains information on the collected data to do a comprehensive analysis [10].First with spss20.0 pairs each index data for factor analysis, variables are classified to reduce the dimensionality of the data space to get a comprehensive evaluation.
Now data are measured on 21 samples of Tang River in 17-dimensional index and analyzed for two times.
(Original variables are essentially independent of dimensionality reduction may fail, it is difficult to use too many independent variables, few relevant comprehensive summary data after dimensionality reduction is better.) [15] Factor extraction and naming firstly.
Take data on typical sites to do factor analysis at the second time.
Data in Figure 2, Figure 3 about various factors impacting on Tang River study reach are organized in percentage, which are showed in Table 4.
Online since: May 2016
Authors: Abdultawab Qahtan, Nedhal Al-Tamimi
The first phase was data collection from the field.
Environmental field data were collected at 10-minute intervals by monitoring indoor/outdoor temperature, mean radiance temperature, and air velocity using a data logger, namely, BABUC/M.
A series of continuous environmental data measurements was conducted in R1 from April 7 to 29.
[15] MMD, Records of Meteorological Data. 2009, Malaysian Metrological Department
Bou-Saada, Procedure for calibrating hourly simulation models to measured building energy and environmental data.
Online since: July 2021
Authors: Júlio Gouveia-Carvalho, Tiago Gonçalves, Victor Lobo, Filipe Duarte, Bernardino Veríssimo, Alfredo Baptista, Mário Monteiro Marques, Wilson Talhão Antunes
Sensor data were wireless transmitted from the sensor board (I-SkyEx Chemical Detector) to a signal receiver installed in a desktop PC, running the data analysis software for the chemical detection.
Operational Open Protocol The sensor must provide an open protocol data format.
Operational Open Protocol The sensor must provide its data in an open data format.
In reality, a safety perimeter could be drawn from the acquired radiation data.
However, the main goal was to set this perimeter-based on radiation data collected in flight mode.
Online since: October 2014
Authors: Cheng Kun Liu, Sen Qiao, Yu Qiang Guo, Jun Tu, Hsing Hung Chen
Weber (2012) used gas consumption and production data combined with economic data to estimate how a substantial increase in the value of gas consumption and production from 1999 to 2008 affected salary income in the country[27].
Data Collection and Analysis This study employs panel data regression model to examine the relationship of natural gas consumption with sustainable development in China.
Then, we have the panel data sets examined by FE regression model.
Then, based on the unbalanced panel data sets consisting of 15 places in China over 2003-2012, FE regression model is adopted, and the results are shown in Table 6.
Analysis of production data in shale gas reservoirs: rigorous corrections for fluid and flow properties.
Online since: September 2014
Authors: Rajashekhar Pendyala, Narahari Marneni, Ngo Thi Phuong Thuy
Reduction in energy consumption is an important task in process industry.
The input data of the problem is given in Table 1.
Table 1: Input data for case studied Stream Tin (°C) Tout (°C) FCp (kW/° C) H1 270 160 18 H2 220 60 22 C1 50 210 20 C2 160 210 50 Steam 250 250 _ Water 15 20 _ Heat transfer coefficient for all streams = 1 (kW/m2.
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