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Online since: March 2007
Authors: Liang Luo, Zuo Guang Zhang, Min Li, Zhen Shen
Compared with controlled GF/4211, the
Tensile strength reduction of 50-P/GF/4211 was the minimum 11.3% and the reduction of 50-G/GF/4211 was the maximum 22.4%.
The reductions induced by different size SiO2 were medium from 17.5% to 19.7% and the effect of 5µm,10µm,50µm SiO2 particle on tensile strength were nearly identical.
Compared with controlled specimen, the flexural strength reduction of 50-P/GF/4211 was the maximum 9.0% and the flexural strength reduction of 50-G/GF/4211 was the medium 2.7%.
Author considered the flexural strength reduction of 5-S/GF/4211 was likely to involve in distinct standard deviation.
The abnormal phenomenon need more data to be support and was worth to be studied subsequently.
The reductions induced by different size SiO2 were medium from 17.5% to 19.7% and the effect of 5µm,10µm,50µm SiO2 particle on tensile strength were nearly identical.
Compared with controlled specimen, the flexural strength reduction of 50-P/GF/4211 was the maximum 9.0% and the flexural strength reduction of 50-G/GF/4211 was the medium 2.7%.
Author considered the flexural strength reduction of 5-S/GF/4211 was likely to involve in distinct standard deviation.
The abnormal phenomenon need more data to be support and was worth to be studied subsequently.
Online since: June 2012
Authors: Li Li Wang, Hai Bin Ke, Hong Yan Zhang
There are a certain amount of CaO and MgO, some data indicate that pellets raw materials containing the appropriate amount of CaO can help to improve pellets strength [1], MgO can help to improve pellets metallurgical properties [2].
The magnetite ore and FexO have similar crystal lattice structure, with less stress, so the low temperature reduction powdered is restrained.
Reducing rate increases, this may be due to increased porosity, promote pellets reduction reaction.
MgO can inhibit the pellet reduction swelling, however, the expansion rate increased.
Although MgO can inhibit reduction expansion, the expansion ratio increases, much less than 20%, within the normal range.
The magnetite ore and FexO have similar crystal lattice structure, with less stress, so the low temperature reduction powdered is restrained.
Reducing rate increases, this may be due to increased porosity, promote pellets reduction reaction.
MgO can inhibit the pellet reduction swelling, however, the expansion rate increased.
Although MgO can inhibit reduction expansion, the expansion ratio increases, much less than 20%, within the normal range.
Online since: August 2013
Authors: Chun Yun Yu, Yan Dong Peng
Analysis of climate, precipitation data of the 51 years (1955-2005) shows that: climate of Qinhuangdao warming in recent years, the mean annual temperature is about 2℃ higher.
Surface runoff reduction.
The river runoff of Qinhuangdao recharged mainly from atmospheric precipitation, atmospheric precipitation reduction lead to river runoff reduction.
The river runoff reduction has various ecological impacts.
Secondly, the river runoff reduction also influences reservoir ecological system.
Surface runoff reduction.
The river runoff of Qinhuangdao recharged mainly from atmospheric precipitation, atmospheric precipitation reduction lead to river runoff reduction.
The river runoff reduction has various ecological impacts.
Secondly, the river runoff reduction also influences reservoir ecological system.
Online since: February 2024
Authors: Oluseyi Solomon Orenuga, Oluwakemi Adebisi, Iyabode Adediran
Computational fluid dynamics model was deployed in the evaluation of thermal behavior of the systems and the obtained climatic data values were used to run the simulation process with the intention of determining the energy requirement of a particular building.
However, a major issue with straw bale is inadequate standard on the technical data utilization in building construction.
This helps energy reduction during the transportation of blocks.
A comprehensive analysis of green building rating systems for data centers.
BIM- driven building greenness evaluation system: An integrated perspective drawn from model data and collective experts’ judgments.
However, a major issue with straw bale is inadequate standard on the technical data utilization in building construction.
This helps energy reduction during the transportation of blocks.
A comprehensive analysis of green building rating systems for data centers.
BIM- driven building greenness evaluation system: An integrated perspective drawn from model data and collective experts’ judgments.
Online since: April 2016
Authors: Tomáš Sehnal, Roman Snop, Tomáš Opravil, František Šoukal, Iva Kolářová, Pavel Šiler
The reduction of these emissions can be achieved by a higher utilization of secondary raw materials in cement mixtures.
Despite this complexity, the data obtained by calorimetry provides an indispensable insight which can be used to characterize the behaviour of different kinds of cements or other binders especially their mixtures with different constituents [5, 6].
This article is focused on the use of this type of calorimeter with simple construction for the measurement of the effect of component with different size as one of the most important materials properties on the hydration process of cement and description of data which can be obtained for specific additives by this way.
There is still observable negative effect of cement particle size reduction on the flexural strength.
From these data can be concluded that the reactivity of cement depends not only on particle size but also on the method of milling.
Despite this complexity, the data obtained by calorimetry provides an indispensable insight which can be used to characterize the behaviour of different kinds of cements or other binders especially their mixtures with different constituents [5, 6].
This article is focused on the use of this type of calorimeter with simple construction for the measurement of the effect of component with different size as one of the most important materials properties on the hydration process of cement and description of data which can be obtained for specific additives by this way.
There is still observable negative effect of cement particle size reduction on the flexural strength.
From these data can be concluded that the reactivity of cement depends not only on particle size but also on the method of milling.
Online since: June 2014
Authors: Marion Merklein, Réjane Hörhold, Martin Müller, Gerson Meschut
In transportation sector the reduction of moving masses without the decrease of safety parameters is a key factor for future economic success.
Further quantitative data are collected by simulative investigations of the material hardening and microhardness tests.
By comparing hardening of the material with Vickers hardness it is possible to validate the simulative data and the optical impressions of the mircosections.
The hardening depends on the strain of the material and the results confirm the qualitative data of the microsections.
Fig. 7: Experimental investigation of the material behaviour using shear-clinching technologies Conclusion Summarized, the strategy of analysing microsections and comparing simulative results with microhardness tests can be used to gain expressive data about the material behavior during the shear-clinching operation and its reference process clinching with pre-hole.
Further quantitative data are collected by simulative investigations of the material hardening and microhardness tests.
By comparing hardening of the material with Vickers hardness it is possible to validate the simulative data and the optical impressions of the mircosections.
The hardening depends on the strain of the material and the results confirm the qualitative data of the microsections.
Fig. 7: Experimental investigation of the material behaviour using shear-clinching technologies Conclusion Summarized, the strategy of analysing microsections and comparing simulative results with microhardness tests can be used to gain expressive data about the material behavior during the shear-clinching operation and its reference process clinching with pre-hole.
Online since: November 2017
Authors: Kyoung Woo Kim, Hye Kyung Shin, Kwan Seop Yang, A Yeong Jeong
Thus, the present study investigated noise criteria in elevators in other nations and identified the noise characteristics during elevator operation to provide foundational data at the time of setup on noise criteria for elevators.
Thus, the present study investigated noise criteria in elevators in other nations and identified the noise characteristics during elevator operation to provide foundational data in order to set up appropriate criteria for elevator noise.
They are also appropriate for specification in cases where no octave band sound data are available for design.
Data Measured Desired Objective L (Max) 35ms elevator ≤ NC 20 The UK.
[8] Guidance on sound insulation and noise reduction for buildings, BS 8233:2014, The British Standards Institution
Thus, the present study investigated noise criteria in elevators in other nations and identified the noise characteristics during elevator operation to provide foundational data in order to set up appropriate criteria for elevator noise.
They are also appropriate for specification in cases where no octave band sound data are available for design.
Data Measured Desired Objective L (Max) 35ms elevator ≤ NC 20 The UK.
[8] Guidance on sound insulation and noise reduction for buildings, BS 8233:2014, The British Standards Institution
Online since: September 2011
Authors: Wei Jun Liu, Ji Bin Zhao, Tao Fu
In this paper, a novel method is proposed for automatically matching the measured data of a rail tanker.
The spindle orientation of point cloud is determined by PCA, and then any relative point pair is well matched according to the spatial topology relations as the complexity reduction point of view, finally the data is mapped to a uniform coordinate system with the Quaternion method.
A number of independent point cloud data measured from different perspectives can be called multi-view point cloud.
Registration of Scattered Cloud Data.
Research on digital measurement technology based on point cloud data of complex surfaces.
The spindle orientation of point cloud is determined by PCA, and then any relative point pair is well matched according to the spatial topology relations as the complexity reduction point of view, finally the data is mapped to a uniform coordinate system with the Quaternion method.
A number of independent point cloud data measured from different perspectives can be called multi-view point cloud.
Registration of Scattered Cloud Data.
Research on digital measurement technology based on point cloud data of complex surfaces.
Online since: April 2025
Authors: A. Shirley Stevany Faryl, K. Rajeshwaran, G. Sekar, Joghee Prasad
Due this design almost all data in a stage performs parallel reduction leading to increase in multiplier performance.
These intermediate registers transmit the data to the subsequent stage by synchronizing the data from one stage with the source clock edge, which is usually the leading edge.
Only after the clock edge arrives, data moves from one stage to another in all intermediate registers.
Two intermediate registers used for storing partial data values in conventional pipelining method is eliminated in this design.
The ECG database at the MIT-BIH Physionet ATM bank provides the initial data for the fir filter.
These intermediate registers transmit the data to the subsequent stage by synchronizing the data from one stage with the source clock edge, which is usually the leading edge.
Only after the clock edge arrives, data moves from one stage to another in all intermediate registers.
Two intermediate registers used for storing partial data values in conventional pipelining method is eliminated in this design.
The ECG database at the MIT-BIH Physionet ATM bank provides the initial data for the fir filter.
Online since: July 2014
Authors: Ming Feng Jiang, Jie Feng, Xin Jin
Exploiting the sparsity of MR signals, Compressed Sensing MR imaging (CS-MRI) is one of the most promising approaches to reconstruct a MR image with good quality from highly under-sampled k-space data.
The Fourier transform reconstructions of the fully-sampled k-space data are shown in Figure 1.
All the measured k-space data are mixed with -20dB simulated Gaussian white noise compared with the maximum of the signal intensity.
In terms of the reconstruction quality with the three different MR data tested, it can be observed visually that the proposed SP-GS method significantly outperformed NLCG, in the case of 79.46% undersampling k-space data, as shown in Figure 3.
In this paper, a novel group sparse based algorithm is demonstrated for reconstructing MR image with highly undersampled k-space data.
The Fourier transform reconstructions of the fully-sampled k-space data are shown in Figure 1.
All the measured k-space data are mixed with -20dB simulated Gaussian white noise compared with the maximum of the signal intensity.
In terms of the reconstruction quality with the three different MR data tested, it can be observed visually that the proposed SP-GS method significantly outperformed NLCG, in the case of 79.46% undersampling k-space data, as shown in Figure 3.
In this paper, a novel group sparse based algorithm is demonstrated for reconstructing MR image with highly undersampled k-space data.