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Online since: November 2011
Authors: Yan Yu, Feng Yuan Huang
Moreover, the experimental equilibrium data was analyzed using the linearized form of Langmuir, and the Langmuir isotherm was found to provide the best theoretical correlation of the experimental data for the adsorption of Cu(II).
However, an increased trend in the magnitude of values on increasing the temperature showed a reduction in terms of the degree of spontaneity in all the three test temperatures.
R2 for the second order kinetic model was 0.9961, and was close to 1.0; the theoretical values of qe calculated from the linear form of the Pseudo-second order kinetic model was 125.5mg/g, and agreed well with the experimental data (121mg/g).
Kinetic studies performed indicated kinetics data tended to fit well in second order kinetics, confirming the chemisorption of Cu(II) onto CMC-S.
However, an increased trend in the magnitude of values on increasing the temperature showed a reduction in terms of the degree of spontaneity in all the three test temperatures.
R2 for the second order kinetic model was 0.9961, and was close to 1.0; the theoretical values of qe calculated from the linear form of the Pseudo-second order kinetic model was 125.5mg/g, and agreed well with the experimental data (121mg/g).
Kinetic studies performed indicated kinetics data tended to fit well in second order kinetics, confirming the chemisorption of Cu(II) onto CMC-S.
Online since: October 2010
Authors: Vincenzo Antonucci, Antonino Salvatore Arico’, Alessandro Stassi, Massimiliano Lo Faro, Maurizio Minutoli, Vincenza Modafferi, Pierluigi Antonucci, Giuseppe Monforte
The thermal reduction at 800 °C caused the occurrence of metallic Ni on the surface.
Therefore, the choice of liquid fuels is strategic to achieve high energy density as well as allows a reduction of the size, complexity, and cost of the system [9-11].
In this study we report the electrochemical data for the direct oxidation process of pure methanol (99.99%) in an SOFC based on a Ni-modified La0.6Sr0.4Fe0.8Co0.2O3 (LSFCO) anode catalyst in the presence of ceria-based electrolytes.
To characterize the surface of the activated catalyst using isotherm data, we considered the general mechanism of adsorption.
In fact, by comparing data of selectivities obtained in the various conditions, it can be noted that the presence of oxygen in the reaction stream contributes to the slightly decrease of selectivity to hydrogen (table 1).
Therefore, the choice of liquid fuels is strategic to achieve high energy density as well as allows a reduction of the size, complexity, and cost of the system [9-11].
In this study we report the electrochemical data for the direct oxidation process of pure methanol (99.99%) in an SOFC based on a Ni-modified La0.6Sr0.4Fe0.8Co0.2O3 (LSFCO) anode catalyst in the presence of ceria-based electrolytes.
To characterize the surface of the activated catalyst using isotherm data, we considered the general mechanism of adsorption.
In fact, by comparing data of selectivities obtained in the various conditions, it can be noted that the presence of oxygen in the reaction stream contributes to the slightly decrease of selectivity to hydrogen (table 1).
Online since: June 2019
Authors: Isaias Ramirez-Vazquez, Miguel Ramirez-Gonzalez, J. Eduardo Salgado-Talavera
The results of this research end up in an improvement factor of up to 100 times the reduction in resistivity, when graphene nano particles are used.
The main network inputs for each NARX model comprises the following experimental test data: humidity, resistivity and current impulse.
Since the available data set for training was relatively small, Bayesian regularization technique was employed to ensure network generalization [20].
Additionally, an update of the NARX network parameters is always possible in case new data are available from experimental tests.
Conclusions Commercial chemical ground enhancers reformulated with grapene nano particles resulted with an improvement factor of up to 100 times of reduction in resistivity.
The main network inputs for each NARX model comprises the following experimental test data: humidity, resistivity and current impulse.
Since the available data set for training was relatively small, Bayesian regularization technique was employed to ensure network generalization [20].
Additionally, an update of the NARX network parameters is always possible in case new data are available from experimental tests.
Conclusions Commercial chemical ground enhancers reformulated with grapene nano particles resulted with an improvement factor of up to 100 times of reduction in resistivity.
Online since: April 2014
Authors: Phaklen Ehkan, Fazrul Faiz Zakaria, Mohammad Shahrazel Razalli, Mohd Nazri Mohd Warip, Lam Chee Yuen, Fairul Afzal Ahmad Fuad
Eurobalise are categorized into two types namely, fixed data and variable data Eurobalise.
The data inside the fixed data Eurobalise cannot be modified while for the variable data Eurobalise, it is compatible to other train control equipment to transmit variable data to the train based on the condition.
Receiver output when data pin grounded Transmitter Data Pin Fed By Constant Vcc.
Pulse Width Reduction.
There is a pulse width reduction phenomena occur in this project.
The data inside the fixed data Eurobalise cannot be modified while for the variable data Eurobalise, it is compatible to other train control equipment to transmit variable data to the train based on the condition.
Receiver output when data pin grounded Transmitter Data Pin Fed By Constant Vcc.
Pulse Width Reduction.
There is a pulse width reduction phenomena occur in this project.
Online since: October 2013
Authors: Daniel Macdonald, An Yao Liu, Sieu Pheng Phang
The approach was later extended to microwave photoconductance decay (µW-PCD) lifetime measurements, and then to quasi-steady-state photoconductance (QSSPC) data [15].
The red line shows a simple diffusion model fitted to the data, yielding a diffusion length of Fe during the precipitation process of 510 microns, and a precipitation velocity of 4.5×10-5 cm/s.
Figure 4 shows a linescan of the measured dissolved Fe concentration near a grain boundary in a mc-Si wafer [23] after annealing at low temperature (530 °C for one and a half hours, and then 600 °C for two and a half hours), and the simple model fitted to the data.
The narrow hump in the Fe concentration data very close to the grain boundary is evidently an experimental artefact caused by either diffusion of carriers or scattering of emitted photons in the sample close to the grain boundary, or a combination of both [22].
The model describes the remainder of the data well, and in this case yields a diffusion length for Fe during the precipitation process of 510 µm, which is close to the expected value of 470 µm based on the diffusivity of Fe during the anneal step [23].
The red line shows a simple diffusion model fitted to the data, yielding a diffusion length of Fe during the precipitation process of 510 microns, and a precipitation velocity of 4.5×10-5 cm/s.
Figure 4 shows a linescan of the measured dissolved Fe concentration near a grain boundary in a mc-Si wafer [23] after annealing at low temperature (530 °C for one and a half hours, and then 600 °C for two and a half hours), and the simple model fitted to the data.
The narrow hump in the Fe concentration data very close to the grain boundary is evidently an experimental artefact caused by either diffusion of carriers or scattering of emitted photons in the sample close to the grain boundary, or a combination of both [22].
The model describes the remainder of the data well, and in this case yields a diffusion length for Fe during the precipitation process of 510 µm, which is close to the expected value of 470 µm based on the diffusivity of Fe during the anneal step [23].
Online since: June 2012
Authors: Li Na Sun, Meng Long Cao
Most importantly the rover process the sensor data to produce an estimate of its position while concurrently building a map of the environment.
Adding the implicit angle information, the original data is distance and direction information, which can be transformed to points in the Cartesian coordinates signifying sampling point’s information for the 2D.
Detect obstacles using laser range finder to get a range of data, which includes 361 distance data that correspond to the distance between the target and the center sensor.
The reduction of a measurement error can reduce all relevant estimate errors in the state estimation process; the system only provides a small amount of information [4] in state estimation for the correlation between the rover and characteristic signs.
The proposed method in article has been initially verified through simulation, but to achieve the accomplishment of the autonomous navigation needs much more further research on the data association of environmental apperceived information and trajectory planning problems of complex terrain in outdoor complex environment.
Adding the implicit angle information, the original data is distance and direction information, which can be transformed to points in the Cartesian coordinates signifying sampling point’s information for the 2D.
Detect obstacles using laser range finder to get a range of data, which includes 361 distance data that correspond to the distance between the target and the center sensor.
The reduction of a measurement error can reduce all relevant estimate errors in the state estimation process; the system only provides a small amount of information [4] in state estimation for the correlation between the rover and characteristic signs.
The proposed method in article has been initially verified through simulation, but to achieve the accomplishment of the autonomous navigation needs much more further research on the data association of environmental apperceived information and trajectory planning problems of complex terrain in outdoor complex environment.
Online since: December 2011
Authors: M. Vijayalakshmi, T. Karthikeyan, S. Saroja
Due to crystal and sample symmetry, texture data can be presented uniquely in a smaller domain of Euler box or Rodrigues space.
Parameterization of single-step rotation by the Rodrigues vector has been recommended for depiction of texture data, as this mapping possesses unique rectilinear properties [1].
Although texture data have been widely reported in the Euler space, the Rodrigues parameterization is also now being adopted for depiction of orientation [2,3] and misorientation [2,4] data.
(5) Reduction of sub-domain due to orthotropy sample symmetry Rolling is an important forming process used for manufacturing flat products, which induces the texture with a orthotropy or orthonormal sample symmetry [6], with associated two-fold rotation symmetry about Rolling, Transverse and Normal Directions.
The result suggests that it would be difficult in general to make quick correlation between texture data represented by Rodrigues and Euler parameters.
Parameterization of single-step rotation by the Rodrigues vector has been recommended for depiction of texture data, as this mapping possesses unique rectilinear properties [1].
Although texture data have been widely reported in the Euler space, the Rodrigues parameterization is also now being adopted for depiction of orientation [2,3] and misorientation [2,4] data.
(5) Reduction of sub-domain due to orthotropy sample symmetry Rolling is an important forming process used for manufacturing flat products, which induces the texture with a orthotropy or orthonormal sample symmetry [6], with associated two-fold rotation symmetry about Rolling, Transverse and Normal Directions.
The result suggests that it would be difficult in general to make quick correlation between texture data represented by Rodrigues and Euler parameters.
Online since: June 2012
Authors: Zhi Ai Yang, Xia Wang, Rong Ma, Xu Chun Song, Li Jin Feng
The equilibrium data of the adsorption and the effect of pH, initial pollutant concentration and temperature of solution on the adsorption of RhB by carbonaceous microspheres were studied.
The equilibrium data of the adsorption was studied to describe the adsorption process.
Among the above three models, Freundlich isotherm model fitted the experimental data best with high R2 value.
The Freundlich equation frequently gives an adequate description of adsorption data over are stricted range of concentration, even though it is not based on the theoretical back ground.
The equilibrium data fitted well with Freundlich isotherms which meansthe multi-layer adsorption occurred on the carbonaceous microspheres surfaces.
The equilibrium data of the adsorption was studied to describe the adsorption process.
Among the above three models, Freundlich isotherm model fitted the experimental data best with high R2 value.
The Freundlich equation frequently gives an adequate description of adsorption data over are stricted range of concentration, even though it is not based on the theoretical back ground.
The equilibrium data fitted well with Freundlich isotherms which meansthe multi-layer adsorption occurred on the carbonaceous microspheres surfaces.
Online since: June 2012
Authors: Jiang Tao Lv, Qiong Chan Gu
The data size of the object can be reduced by it.
The data processing speed is increased by it based on keeping the useful information.
In this paper, the FastICA algorithm is used to process the spectroscopic data.
The spectroscopic data is converted to the two-dimension form from the EEM matrix form.
The SVM is used to process the data after dimensionality reduction to realize the fast detection and identification.
The data processing speed is increased by it based on keeping the useful information.
In this paper, the FastICA algorithm is used to process the spectroscopic data.
The spectroscopic data is converted to the two-dimension form from the EEM matrix form.
The SVM is used to process the data after dimensionality reduction to realize the fast detection and identification.
Online since: December 2012
Authors: Guang Meng, Rui Zhu, Hong Guang Li
Based on the deep analysis of the working principle and using equipment, the air separation unit product data management (PDM) system is developed by Visual Basic (VB) in this paper develops.
Product Data Management (PDM) refers to integration and management the information and application of products and product data which distributed between various systems and media in every enterprise [4].
It uses software technology as the foundation, product as the core, and realizes integrated management of the database system among data, process, and resources which relates with product.
PDM can enhance the efficiency of product design, manufacture and delivery; product data management system saves and provides the important information data of product design and manufacture, and provides products maintain support, namely the products whole life management.
Some “hot spots” are indicated in the area, and detailed information such as particular data set, access tool or technology could be found by clicking on these areas.
Product Data Management (PDM) refers to integration and management the information and application of products and product data which distributed between various systems and media in every enterprise [4].
It uses software technology as the foundation, product as the core, and realizes integrated management of the database system among data, process, and resources which relates with product.
PDM can enhance the efficiency of product design, manufacture and delivery; product data management system saves and provides the important information data of product design and manufacture, and provides products maintain support, namely the products whole life management.
Some “hot spots” are indicated in the area, and detailed information such as particular data set, access tool or technology could be found by clicking on these areas.