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Online since: September 2017
Authors: Milan Dermek
This can be made impossible by major losses in hose line, those lead to the decrease of required overpressure in front of a nozzle, and thereby to reduction of range distance and reduction of the effectivity of extinguishing.
Data have been written into data files using datalogger Almemo 2590, which were processed by a computer into the desired shape.
The difference between the old value of the simplified calculation and the measured data from the experiment is expressed in % relative to the old values in Figure 5.
Significant reduction of pressure losses results from the given picture, which affects the possibility of water transfer using hose line to longer distance.
Data have been written into data files using datalogger Almemo 2590, which were processed by a computer into the desired shape.
The difference between the old value of the simplified calculation and the measured data from the experiment is expressed in % relative to the old values in Figure 5.
Significant reduction of pressure losses results from the given picture, which affects the possibility of water transfer using hose line to longer distance.
Online since: January 2015
Authors: Artem Korsun, Volodymyr I. Korsun
Thus, according to the data [3, 8, 16, 18, 20], the level of precompression h = 0.2¸0.3 at the first short-term heating up to 200°C increases the prism strength of normal heavy concrete by 14¸20 %, at the long-term isothermal heating – by 8¸22 % compared with the strength of previously unloaded concrete.
Experimental data: [16]: +20°С – ; [18]: +90°С – , ; +150°С – , ; [3]: +60°С – , ; +120°С – , ; +200°С – , .
Further increase of precompression to the level of h = (0.4¸0.5) leads to the stable reduction of this characteristic (Fig. 1).
For the case of long-term precompression of concrete at normal temperature a significant reduction of concrete mechanical properties is more characteristic at elevated temperatures than compression directly before heating [20].
The values of the concrete properties which are calculated according to the expressions (1) ¸ (13) correspond to the experimental data (Fig. 1).
Experimental data: [16]: +20°С – ; [18]: +90°С – , ; +150°С – , ; [3]: +60°С – , ; +120°С – , ; +200°С – , .
Further increase of precompression to the level of h = (0.4¸0.5) leads to the stable reduction of this characteristic (Fig. 1).
For the case of long-term precompression of concrete at normal temperature a significant reduction of concrete mechanical properties is more characteristic at elevated temperatures than compression directly before heating [20].
The values of the concrete properties which are calculated according to the expressions (1) ¸ (13) correspond to the experimental data (Fig. 1).
Online since: April 2018
Authors: Kazuhiko Kitamura, Nobukazu Hayashi, Keisuke Goto, Kazuhito Asai
The reduction in cross-sectional area is 50%.
In stage 1, the data such as stress-strain curves, strain rate, temperature, mechanical and thermal properties, and coefficients of friction mp and mc are input to the FEM calculations.
This indicates an agreement within ±10%, wherefore all data are transferred from the 1st stage to the 2nd stage. 2.
The data are transferred from the 2nd stage to the 3rd stage. 3.
The reduction in friction is probably due to the increasing temperature melting the soap lubricant.
In stage 1, the data such as stress-strain curves, strain rate, temperature, mechanical and thermal properties, and coefficients of friction mp and mc are input to the FEM calculations.
This indicates an agreement within ±10%, wherefore all data are transferred from the 1st stage to the 2nd stage. 2.
The data are transferred from the 2nd stage to the 3rd stage. 3.
The reduction in friction is probably due to the increasing temperature melting the soap lubricant.
Online since: February 2012
Authors: Hong Bing Xin, Shang Yue Chen
Thus, a large reduction ratio can be achieved by the harmonic drive reducer.
(1) Experimental data and analysis Part of the experimental data are listed in table 3.
The measurement principles, methods and data processing are described for further analysis and development of the measurement system.
The experimental data are basically consistent with the micro harmonic drive theory.
Experimental equipments are determined and experimental measurement instruments data is cleared by the experimental system design.
(1) Experimental data and analysis Part of the experimental data are listed in table 3.
The measurement principles, methods and data processing are described for further analysis and development of the measurement system.
The experimental data are basically consistent with the micro harmonic drive theory.
Experimental equipments are determined and experimental measurement instruments data is cleared by the experimental system design.
Online since: October 2007
Authors: Dong Nyung Lee
(a) β-fiber intensity lines
of Cu-16% Mn alloys after
various rolling reductions and
(b) (111) pole figures of Cu-16%
Mn alloy after complete
recrystallization (97.5% rolled,
annealed at 450 °C for 1000 s)
( experimental data: (a) from ref
Fig. 6. (111) pole figures of (a) rolled and (b) recrystallized of Cu-1%P alloy (measured data [14]).
Fig. 7. (111) pole figures of 95% rolled Cu-22%Zn brass (a) before and (b) after annealing (experimental data [14]).
Textures of (a) and (b) can be approximated by {110}<112> and {236}<385>, respectively (experimental data [15]).
The mobility data of tilt grain boundaries in aluminum show that the average mobility of a <111> tilt boundary is increasingly higher than that of a <100> boundary with increasing temperature [22].
Fig. 6. (111) pole figures of (a) rolled and (b) recrystallized of Cu-1%P alloy (measured data [14]).
Fig. 7. (111) pole figures of 95% rolled Cu-22%Zn brass (a) before and (b) after annealing (experimental data [14]).
Textures of (a) and (b) can be approximated by {110}<112> and {236}<385>, respectively (experimental data [15]).
The mobility data of tilt grain boundaries in aluminum show that the average mobility of a <111> tilt boundary is increasingly higher than that of a <100> boundary with increasing temperature [22].
Online since: September 2013
Authors: You Ye Zheng, Shun Bao Gao, Jian Guo Wang
In order to analyze deposits model, the methods adopted includes that arrangement of existing geophysical and geochemical exploration results, familiar with the former research results, and based on the collection of data, studying comprehensively the geological characteristics of deposits, discussing the deposits genesis.
It found that metal mineral combination about the Cu(Au) ore body is pyrite + chalcopyrite + molybdenite(less) + magnetite (less), and transit to a peripheral area of pyrite + chalcopyrite + magnetite, to sphalerite + chalcopyrite + pyrite + lead ore (less) from inside to outside in porphyries body in Xiongcun by studying, which reflected the rock permeability and diffusion about the hydrothermal system of ore-bearing porphyry, all this caused by different types of mineralization process due to temperature and pressure reduction.
Deficiency is a lack of data, it is very difficult to distinguish which kind of exploration method played a key role, the division includes both the exploration methods and working train of thought, prospecting cognition.
Research methods: ①arrangement of existing geophysical and geochemical exploration results, familiar with the former research results. based on the collection of data, studying comprehensively the geological characteristics of deposits, methods adopted the field observation and indoor optical slice identification, studying synthetically geological features in the area, which including the regional geological background, the ore types, ore fabric and material composition, metallogenic elements combination, and Wall rock alteration characteristics, and so on. ③ studying and discussing the deposits genesis about Xiongcun Cu (Au) deposits, summarizing metallogenic regularity and Prospecting model.
It is divided into 6 categories: ①Geological mapping method (77%).②Geochemical methods (69%).③geophysical method (47%).④theory model of prospecting method (24%).⑤Remote sensing method (12%).⑥Drilling method (11%). the newly discovered deposits in main metallogenic belt in Tibet since the geology survey beginning (1999) that It is difficult to completely identify which kinds of exploration methods played a key role due to the lack of systematic data.
It found that metal mineral combination about the Cu(Au) ore body is pyrite + chalcopyrite + molybdenite(less) + magnetite (less), and transit to a peripheral area of pyrite + chalcopyrite + magnetite, to sphalerite + chalcopyrite + pyrite + lead ore (less) from inside to outside in porphyries body in Xiongcun by studying, which reflected the rock permeability and diffusion about the hydrothermal system of ore-bearing porphyry, all this caused by different types of mineralization process due to temperature and pressure reduction.
Deficiency is a lack of data, it is very difficult to distinguish which kind of exploration method played a key role, the division includes both the exploration methods and working train of thought, prospecting cognition.
Research methods: ①arrangement of existing geophysical and geochemical exploration results, familiar with the former research results. based on the collection of data, studying comprehensively the geological characteristics of deposits, methods adopted the field observation and indoor optical slice identification, studying synthetically geological features in the area, which including the regional geological background, the ore types, ore fabric and material composition, metallogenic elements combination, and Wall rock alteration characteristics, and so on. ③ studying and discussing the deposits genesis about Xiongcun Cu (Au) deposits, summarizing metallogenic regularity and Prospecting model.
It is divided into 6 categories: ①Geological mapping method (77%).②Geochemical methods (69%).③geophysical method (47%).④theory model of prospecting method (24%).⑤Remote sensing method (12%).⑥Drilling method (11%). the newly discovered deposits in main metallogenic belt in Tibet since the geology survey beginning (1999) that It is difficult to completely identify which kinds of exploration methods played a key role due to the lack of systematic data.
Online since: August 2013
Authors: Guo Liang Dai, Abdellatif Boucheloukh, Wei Ming Gong
They found that could be estimated as:
(5)
Where: is a reduction factor reflecting the strength of the rock, as shown in Fig.1.
Fig.1 Reduction factors, .
Fig. 2 Reduction factors, The second kind assumes a function with square root of the unconfined compressive strength multiplied by a constant factor (roughness factor).
Linear regression was conducted on two sets of data, one of individual shaft test and the other for site averaged data.
On the basis of the site averaged data they proposed a general form can be written in: (12) : is a dimensionless factor that reflects variations in the intact strength of the rock and roughness take the next values. : For extreme lower bound; : For reasonable lower bound; : For the mean behavior; : Corresponds to an upper bound for artificially roughened sockets.
Fig.1 Reduction factors, .
Fig. 2 Reduction factors, The second kind assumes a function with square root of the unconfined compressive strength multiplied by a constant factor (roughness factor).
Linear regression was conducted on two sets of data, one of individual shaft test and the other for site averaged data.
On the basis of the site averaged data they proposed a general form can be written in: (12) : is a dimensionless factor that reflects variations in the intact strength of the rock and roughness take the next values. : For extreme lower bound; : For reasonable lower bound; : For the mean behavior; : Corresponds to an upper bound for artificially roughened sockets.
Online since: June 2010
Authors: Yan Fen Liu, Jie Zhang, Yi Ma, Shan Kai, Xiao Hua Jin
Data acquisition and processing
In order to more accurately reflect the growth status of wetland vegetation, the phase of remote
sensing images was chosen as the vegetation growing season.
Data base uses the WGS84 geographic coordinate system and UTM projection.
In addition, to improve the interpretation accuracy of wetland landscape types, during the process of interpretation, we also mainly refer to some data, objects' photographs and video information of field investigation, some pieces of 1: 50 000 topographic maps and historical survey maps and data coming from the late 80s to early 90s of the last century, covering topography, land use, vegetation, and soil type.
If the amount of a certain type transferring to the others is larger than the others transferring to it, it will have a reduction, otherwise it will have an increase.
The results show that the bare muddy tidal flat kept reducing from 2001 to 2008, and the reduction from 2001 to 2004 was greater than that from 2004 to 2008.
Data base uses the WGS84 geographic coordinate system and UTM projection.
In addition, to improve the interpretation accuracy of wetland landscape types, during the process of interpretation, we also mainly refer to some data, objects' photographs and video information of field investigation, some pieces of 1: 50 000 topographic maps and historical survey maps and data coming from the late 80s to early 90s of the last century, covering topography, land use, vegetation, and soil type.
If the amount of a certain type transferring to the others is larger than the others transferring to it, it will have a reduction, otherwise it will have an increase.
The results show that the bare muddy tidal flat kept reducing from 2001 to 2008, and the reduction from 2001 to 2004 was greater than that from 2004 to 2008.
Online since: February 2008
Authors: César A.C. Sequeira, Rui F. M. Lobo, Diogo M.F. Santos
Dramatic improvements in the quality of the electrochemical data can be
obtained with these electrodes.
Voltammograms for the reduction of duroquinone in acetonitrile obtained at a 6.2 µm radius hemispherical mercury electrode are shown in Fig. 1.
Because of the reduced iR drop, microvoltammetric electrodes allow quantitative data to be obtained from cyclic voltammetry at scan rates of 20,000 Vs-1 and qualitative data up to 100,000 Vs-1 [11,12].
In addition, they are simple to use, comparatively inexpensive and data interpretation is relatively straightforward.
Reduction of 1 mM cobalticinium ion in acetonitrile at a platinum band electrode of 4.5 µm width with different concentrations of tetrabutylammonium hexafluorophosphate.
Voltammograms for the reduction of duroquinone in acetonitrile obtained at a 6.2 µm radius hemispherical mercury electrode are shown in Fig. 1.
Because of the reduced iR drop, microvoltammetric electrodes allow quantitative data to be obtained from cyclic voltammetry at scan rates of 20,000 Vs-1 and qualitative data up to 100,000 Vs-1 [11,12].
In addition, they are simple to use, comparatively inexpensive and data interpretation is relatively straightforward.
Reduction of 1 mM cobalticinium ion in acetonitrile at a platinum band electrode of 4.5 µm width with different concentrations of tetrabutylammonium hexafluorophosphate.
Online since: March 2005
Authors: J. Zavadil, K. Zdanský, J. Grym, Olga Prochazková
The reliability of the obtained data
were checked by comparison with the temperature dependent Hall effect measurements using the
van der Pauw technique.
The reduction by two orders of magniude was a maximum.
These data indicate that Ce presence in the melt leads to the incorporation of Ce 3+ ions into the host InP lattice.
For comparisons are also shown the corresponding data for bulk InP doped with Zn, which has binding energy 43 meV.
For comparison are also shown the same data for bulk InP doped with Zn.
The reduction by two orders of magniude was a maximum.
These data indicate that Ce presence in the melt leads to the incorporation of Ce 3+ ions into the host InP lattice.
For comparisons are also shown the corresponding data for bulk InP doped with Zn, which has binding energy 43 meV.
For comparison are also shown the same data for bulk InP doped with Zn.