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Online since: August 2020
Authors: Dalibor Kocáb, Petr Žítt, Sabina Hüblová
However, in older concretes which are part of a structure, obtaining such data can be a major problem.
The determination of the frost resistance of most structures will probably not be able to use any standard procedure that requires assessing reductions in the flexural strength of concrete (known as the frost resistance coefficient [12]) – simply because no prisms are available.
The determination of the frost resistance of most structures will probably not be able to use any standard procedure that requires assessing reductions in the flexural strength of concrete (known as the frost resistance coefficient [12]) – simply because no prisms are available.
Online since: January 2017
Authors: Dong Lin Zhao, Cheng Li, Xia Jun Wang, Ran Ran Yao, Fei Fei Sun
The data indicate that extensive oxidation and rapid thermal exfoliation have induced a substantial decrease of the size of the in-plane sp2 domains, as well as an increase of edge planes and the degree of disorder in the prepared GNs [25].
The reduction in the value of Ms could be attributed to the rather smaller size of the Fe3O4 nanoparticles and the relatively low amount of Fe3O4 loaded on GNs, which is estimated as 46.7 wt% calculated from the content of Fe by atomic absorption spectrum.
The reduction in the value of Ms could be attributed to the rather smaller size of the Fe3O4 nanoparticles and the relatively low amount of Fe3O4 loaded on GNs, which is estimated as 46.7 wt% calculated from the content of Fe by atomic absorption spectrum.
Online since: May 2018
Authors: Hai Yun Jin, Cheng Lei Li, Fan Yang, Ling Ruan, Si Rui Zhu, Peng Hu Li
Fig. 1 Structure sketch of insulated tubular bus Fig. 2 2D model of insulated tubular bus
Table 1 Structure data of insulated tubular bus
Structure
manufacturer structure
[mm]
Thickness of conductor (t1)
12.5
Outside diameter of conductor (Dc)
90
Thickness of inner shield
0.5
Thickness of insulation (t2)
10
Thickness of outer shield
0.5
Thickness of metal shield
1
Thickness of sheath
2
Diameter of the bus
118
Table 2 Material parameters of insulated tubular bus
Material
Relative permittivity
Resistivity[Ω · m]
Thermal conductivity [W·m-1·K-1]
Copper
10000
1.75×10-8
377
Semi-conductor
500
1
0.6
Epoxy/paper
3.8
1014
0.3
PVC sheath
3.4
1013
0.18
As the operating frequency of insulated tubular bus is 50 or 60 Hz, the electromagnetic wavelength is much larger than the size of the device, and the resistivity of the insulation layer is large enough.
Too thick insulation not only causes the waste of resources, but also may cause the reduction of breakdown electric field strength.
Too thick insulation not only causes the waste of resources, but also may cause the reduction of breakdown electric field strength.
Online since: February 2018
Authors: K.V.S. Rao, Akshay Lele
Due to lack of sufficient drag data, the exact calculation of forces on a spinning cylinder is very difficult [13].
Siemons, Vanessa Cook, Emission Reduction Targets for International Aviation and Shipping, Policy Department A: Economic and Scientific Policy, European Parliament, B-1047 Brussels, November, 2015
Siemons, Vanessa Cook, Emission Reduction Targets for International Aviation and Shipping, Policy Department A: Economic and Scientific Policy, European Parliament, B-1047 Brussels, November, 2015
Online since: June 2017
Authors: Muhammad Hussain Ismail, Siti Khadijah Alias, Samsiah Ahmad, Muhammad Hafizuddin Jumadin, Bulan Abdullah
A minimum of 3 times indention at different areas were taken in order to average the data.
By using microhardness values, case depth can be estimate by measuring the hardness reduction from surface to the substrate until it reaches 150 HV where there was no carbon addition at this value.
By using microhardness values, case depth can be estimate by measuring the hardness reduction from surface to the substrate until it reaches 150 HV where there was no carbon addition at this value.
Rules of Fragmentation and Localization at Aluminium Single Crystal Division during Compression Test
Online since: October 2014
Authors: Irina Bespalova, Tatyana Kunitsyna, Ludmila A. Teplyakova
The Al-crystals were chosen because one already has sufficient information about them to evaluate the complex data which were obtained by this author or are already available in the scientific literature.
The development of macro fragmentation during shearing in a [110] Al-single crystal with a cubic shape and face planes and (001) (D1k-single crystal) Fig. 6 The theoretically assumed compartmentalisation of the [110] single crystal into primary mono fragments and their change due to halving the height: (a) The ration of the height to width is two; (b) h/d=1; (c) The compartmentalisation of D1k-single crystal into local volumes F11, F12, to F33; (d) the corresponding sections S11, S22 to S33 of the planes and S22*, S24*, S32* of the (001) plane Halving the D1-single crystal's height leads to a substantial reduction of the specific shearing's partial volume in the specimen (Fig. 6).
The development of macro fragmentation during shearing in a [110] Al-single crystal with a cubic shape and face planes and (001) (D1k-single crystal) Fig. 6 The theoretically assumed compartmentalisation of the [110] single crystal into primary mono fragments and their change due to halving the height: (a) The ration of the height to width is two; (b) h/d=1; (c) The compartmentalisation of D1k-single crystal into local volumes F11, F12, to F33; (d) the corresponding sections S11, S22 to S33 of the planes and S22*, S24*, S32* of the (001) plane Halving the D1-single crystal's height leads to a substantial reduction of the specific shearing's partial volume in the specimen (Fig. 6).
Online since: August 2023
Authors: Naozumi Fujiwara, Masanobu Sato, Momoji Kubo, Ryuichi Seki, Yasutoshi Okuno
.
**: The data from C.
Koide et al., "Effect of Surface Energy Reduction for Nano-Structure Stiction", ECS Transactions, vol. 69, no. 8, p. 131, 2015/09/11 2015, doi: 10.1149/06908.0131ecst
Koide et al., "Effect of Surface Energy Reduction for Nano-Structure Stiction", ECS Transactions, vol. 69, no. 8, p. 131, 2015/09/11 2015, doi: 10.1149/06908.0131ecst
Online since: March 2024
Authors: John Ryan C. Dizon, Michaela T. Espino, Brian Jumaquio Tuazon
Data comparison and analysis revealed that test samples have varying results depending on the number of thermal cycles it has been subjected to.
This reduction of mechanical properties is the effect of induced structure fragmentation caused by micro-cracking [26].
This reduction of mechanical properties is the effect of induced structure fragmentation caused by micro-cracking [26].
Online since: June 2025
Authors: Ľubomír Hujo, Beáta Kopiláková
Work in agriculture has a variable nature, changing natural and climatic conditions, significant energy demand, which also results in the burden of mobile technology, the demand for higher performance, reduction of energy demand and environmental protection.
Tab. 1 Technical data of HARVELLA TX 10W40 oil Parameter Unit Value Density at 15°C kg.l-1 0.864 Kinematic viscosity at 40°C mm2.s-1 75 Kinematic viscosity at 100°C mm2.s-1 14.4 Flash point °C 220 Freezing point °C -30 Water hazard level - 0 For analysis, we took the working fluid from the tractor's hydraulic systemfrom the oil sump of the hydraulic system in the amount of 0.5 l, at the working temperature of the machine, while it is not possible to remove the oil from the filter of the hydraulic system, due to the design solution of the location of the oil filter.
Tab. 1 Technical data of HARVELLA TX 10W40 oil Parameter Unit Value Density at 15°C kg.l-1 0.864 Kinematic viscosity at 40°C mm2.s-1 75 Kinematic viscosity at 100°C mm2.s-1 14.4 Flash point °C 220 Freezing point °C -30 Water hazard level - 0 For analysis, we took the working fluid from the tractor's hydraulic systemfrom the oil sump of the hydraulic system in the amount of 0.5 l, at the working temperature of the machine, while it is not possible to remove the oil from the filter of the hydraulic system, due to the design solution of the location of the oil filter.
Online since: February 2016
Authors: Qiu Li, Hai Ning Geng, Zhong He Shui, Yun Huang
Comparing to slag and fly ash, MK is more expansive, so low content of MK addition will be beneficial the cost reduction of construction industry and ideally improve the properties of concrete.
The acquired data was analysed by PANalytical X’pert Highscore Plus with PDF2004 database.
The acquired data was analysed by PANalytical X’pert Highscore Plus with PDF2004 database.