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Online since: April 2022
Authors: Zhi Guo Gao
Relevant material properties data is readily quotable in the previous literary sources
In addition, laser-processed samples were metallgraphically prepared, and micrograph and measurement data were used for model validation and microstructure analysis by means of optical and electron microscopy.
Furthermore, reduction of dendrite tip undercooling ahead of columnar interface, which is driven by drastic temperature gradient, is an often useful method to counterbalance increase of dendrite tip undercooling, which is driven by unsymmetrical welding configuration.
In addition, laser-processed samples were metallgraphically prepared, and micrograph and measurement data were used for model validation and microstructure analysis by means of optical and electron microscopy.
Furthermore, reduction of dendrite tip undercooling ahead of columnar interface, which is driven by drastic temperature gradient, is an often useful method to counterbalance increase of dendrite tip undercooling, which is driven by unsymmetrical welding configuration.
Online since: May 2020
Authors: Viktor Moshynskyi, Yevhenii Malanchuk, Mykola Koziar, Zynovii Malanchuk, Valerii Korniienko
Data on chemical composition are given in Fig. 5.
When comparing the experimental data obtained from the State Department of Ecology and Natural Resources in the Rivne region, the content of lead, zinc, copper, cadmium, nickel, cobalt, nitrite, manganese, phosphorus exceeds the maximum permissible standards.
Therefore, when obtaining rare earths metals from phosphogypsum, there is no need for additional costs to provide increased radiation safety measures, which leads to a reduction in the cost of rare earth products.
When comparing the experimental data obtained from the State Department of Ecology and Natural Resources in the Rivne region, the content of lead, zinc, copper, cadmium, nickel, cobalt, nitrite, manganese, phosphorus exceeds the maximum permissible standards.
Therefore, when obtaining rare earths metals from phosphogypsum, there is no need for additional costs to provide increased radiation safety measures, which leads to a reduction in the cost of rare earth products.
Online since: July 2024
Authors: Mostafa Abdellah Sayed, Mona Mohamed Wetwet, Safaa M.A. El-Gamal, Mohamed Ramadan, Alaa Mohsen, Mahmoud M. Hazem, Fatma Mostafa Helmy
Section 3.1 presents an examination of the produced nanoparticles with a specific focus on their characterizations utilizing X-ray diffraction (XRD), scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM/EDX), and Brunauer-Emmett-Teller (BET) data.
2.2.
Based on the preceding data, it can be deduced that the inclusion of CTAB during the production of WO3 nanoparticles leads to the most significant textural attributes.
Whatever the type of binding material, increasing the dosage of WO3 NPs up to 2% led to a significant reduction in setting times of the fabricated pastes.
Based on the preceding data, it can be deduced that the inclusion of CTAB during the production of WO3 nanoparticles leads to the most significant textural attributes.
Whatever the type of binding material, increasing the dosage of WO3 NPs up to 2% led to a significant reduction in setting times of the fabricated pastes.
Online since: March 2018
Authors: Fabrice Bernard, Mohamed Salah Dimia, Noureddine Lahbari, Soumia Sekkiou
The temperature curves considered as input data are taken from the parametric fire model of Annex A in Eurocode 1 part 1-2 [25], that represents the action of a natural fire including the cooling phase.
In a recent paper, Yi-Hai and Franssen [31] have shown, from the analysis of hundreds of experimental results reported in the literature, that the additional reduction during cooling may be even higher than the 10% reduction considered in Eurocode 4.
In a recent paper, Yi-Hai and Franssen [31] have shown, from the analysis of hundreds of experimental results reported in the literature, that the additional reduction during cooling may be even higher than the 10% reduction considered in Eurocode 4.
Online since: October 2010
Authors: Chih Chien Liu, Wei Chien Wang, Chau Lee
A data logger was used to record the voltage, current and temperature during the experiments.
Data logger Power Supply + - 1L Saturated Ca(OH)2 1L 1N LiOH·H2O φ100×50 mm cylindrical specimen K+ Li+ Na+ + - #20 304 stainless steel wire mesh Fig. 1 Schematic diagram of the ALMT test cell set-up 4.
The rest of the charge is consumed by the transport of anions, metal dissolution, electrolyte reduction and oxidation, or heat [9].
Data logger Power Supply + - 1L Saturated Ca(OH)2 1L 1N LiOH·H2O φ100×50 mm cylindrical specimen K+ Li+ Na+ + - #20 304 stainless steel wire mesh Fig. 1 Schematic diagram of the ALMT test cell set-up 4.
The rest of the charge is consumed by the transport of anions, metal dissolution, electrolyte reduction and oxidation, or heat [9].
Online since: October 2010
Authors: Yong Jie Xue, Shu Jing Zhu, Guo Hua Xie, He Qing Du
The compressive strength data of the mortars and pastes samples containing prepared cementious listed in Table 2 are presented in Table 4.
XRD data of 3, 7 and 28-day cured samples prepared using DA-4 agent The microstructure of the fractured surfaces of DA-4 sample was studied by SEM.
This moisture over-absorption phenomenon correlates with the reduction in bearing capacity of the soil.
XRD data of 3, 7 and 28-day cured samples prepared using DA-4 agent The microstructure of the fractured surfaces of DA-4 sample was studied by SEM.
This moisture over-absorption phenomenon correlates with the reduction in bearing capacity of the soil.
Online since: November 2010
Authors: Aldo Okullo, A.K. Temu, J.W. Ntalikwa, P. Ogwok
Catalyst amount was selected based on data reported in literature [11-15, 17].
A 23 full factorial design was not able to fit the data to the two responses; yield and purity.
Acknowledgement This work was sponsored by Alternative Energy for Sustainable Development, Environmental Protection and Poverty Reduction in Tanzania (ESEPRIT) and Policy Innovation System for Clean Energy Security (PISCES) Projects.
A 23 full factorial design was not able to fit the data to the two responses; yield and purity.
Acknowledgement This work was sponsored by Alternative Energy for Sustainable Development, Environmental Protection and Poverty Reduction in Tanzania (ESEPRIT) and Policy Innovation System for Clean Energy Security (PISCES) Projects.
Online since: August 2013
Authors: Huan Huan Feng, Kui Chen
Following measures can be taken to deal with blocky rock (Table 1):
Table 1 The measures against blocky rock
Issue
Suggested TBM Solution
Cutterhead profile
Flat, shallow
Cutter spacing
Spacing/penetration ratio 10-20
Number of cutters (for φ10m)
60-65
Disc diameter
17-19 inches
Cutter layout
Double spiral, impact protections
Cutterhead shielding
Shield required (distance from face 12.5cm)
Buckets
Peripheral
Rotation speed(forφ10m)
155-190m/min
Speed control
Variable
Operational
Reduce thrust and speed in blocky rocks
2.1.2 Squeezing ground and corresponding countermeasures
Squeezing ground is formed by a reduction of the tunnel cross section that occurs as the tunnel is being excavated due to the high convergences of the tunnel walls in bad rock under high ground stress.
Insufficient time and investment for geological survey lead to the large discrepancies between the surveyed data and the facts.
In order to effectively prevent TBM construction risks and minimize the negative effects of the risks, a set of complete and reliable geological and hydraulic data as well as an experienced, well-organized and professional team is the prerequisite to safe and efficient TBM construction.
Insufficient time and investment for geological survey lead to the large discrepancies between the surveyed data and the facts.
In order to effectively prevent TBM construction risks and minimize the negative effects of the risks, a set of complete and reliable geological and hydraulic data as well as an experienced, well-organized and professional team is the prerequisite to safe and efficient TBM construction.
Online since: May 2018
Authors: Zeng Ling Wu
When sulfide-S were completely oxidized, the gold extraction achieved 88.4% (Data not shown), which suggested that gold recovery had a strong relationship of sulfide-S oxidation.
Percents of Acidithiobacillus in the ore and leachate were 76.3%, 43.4% in the final stage (247 d) at 60oC (Data not shown).
(4) Further investigation is needed for a better control of sulfur deposition at the mineral surface and ferric bio-reduction inside the heap.
Percents of Acidithiobacillus in the ore and leachate were 76.3%, 43.4% in the final stage (247 d) at 60oC (Data not shown).
(4) Further investigation is needed for a better control of sulfur deposition at the mineral surface and ferric bio-reduction inside the heap.
Online since: February 2012
Authors: Yan Hua Li, Li Li Zhang, Xue Han, Lan Wei Zhang
Data were collected on computer and the following parameters texture profile parameters were calculated from TA-XT2i texture analyzer and computer interface: hardness (maximum force that is exerted on the sample) is defined as the force necessary to attain a given deformation.
For the whole milk yogurt samples, samples with TGase resulted in lower syneresis, presenting a reduction of 54 %, 59 % and 63 %, respectively (Fig. 1), in comparison to the control samples (without TGase).
Texture analysis of yoghurt samples Hardness (g) Consistency (g s) Cohesiveness (g) Adhesiveness (g s) W0 28.83±1.92a 355.9±18.6a -13.1±1.1a -111.2±16.3a W1 40.56±3.45a 708.6±71.8b -25.2±2.4cd -381.1±47.6b W2 64.41±14.17b 1068.8±82.6c -32.5±8.6de -579.36±26.5c W3 88.51±10.23c 1364.9±135.2d -41.7±6.0f -701.4±20.5d S0 25.05±0.78a 402.8±62.4a -15.2±1.1ab -136.6±16.6a S1 33.88±4.13a 640.5±73.0b -22.7±2.3bc -340.2±18.8b S2 69.22±11.44b 1180.6±212.4cd -29.6±4.3cd -532.6±54.7c S3 93.87±16.14c 1309.1±119.4d -40.4±6.4ef -675.0±30.1d All data were expressed as mean values ± S.D (n=6). w0: whole milk yogurt without TGase; w1-w3: whole milk yogurt with TGase (1, 3, 5 U/g protein).
For the whole milk yogurt samples, samples with TGase resulted in lower syneresis, presenting a reduction of 54 %, 59 % and 63 %, respectively (Fig. 1), in comparison to the control samples (without TGase).
Texture analysis of yoghurt samples Hardness (g) Consistency (g s) Cohesiveness (g) Adhesiveness (g s) W0 28.83±1.92a 355.9±18.6a -13.1±1.1a -111.2±16.3a W1 40.56±3.45a 708.6±71.8b -25.2±2.4cd -381.1±47.6b W2 64.41±14.17b 1068.8±82.6c -32.5±8.6de -579.36±26.5c W3 88.51±10.23c 1364.9±135.2d -41.7±6.0f -701.4±20.5d S0 25.05±0.78a 402.8±62.4a -15.2±1.1ab -136.6±16.6a S1 33.88±4.13a 640.5±73.0b -22.7±2.3bc -340.2±18.8b S2 69.22±11.44b 1180.6±212.4cd -29.6±4.3cd -532.6±54.7c S3 93.87±16.14c 1309.1±119.4d -40.4±6.4ef -675.0±30.1d All data were expressed as mean values ± S.D (n=6). w0: whole milk yogurt without TGase; w1-w3: whole milk yogurt with TGase (1, 3, 5 U/g protein).