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Online since: January 2005
Authors: Zhuang Qi Hu, Heng Rong Guan, Xiao Feng Sun, Tao Jin, Jin Jiang Yu
Rhenium appears to be becoming increasingly important as an alloying element in single crystal superalloys, making the material more resistant by strengthening of the γ-matrix and by reduction of the γ' coarsening rate [1-3].
Fig.1 shows a Larson-Miller plot of the stress-rupture data of DD32 alloy and SRR99 alloy for different temperatures.
It is shown that the data of DD32 alloy lie above the curve corresponding to SRR99 alloy.
Online since: January 2015
Authors: Hua Jin, Peng Jie Wang, Tian Ju Zhang
As a result, enormous impacts have occurred on the aquifer, which due to the quality and quantity influence on surface water and groundwater, such as groundwater resources drying up, water pollution, surface water infiltration increase, base flow reduction, and groundwater flow field change.
The coal mine field is covered by loess, and based on the geological data and drilling data, the formations of strata are composed of Quaternary, Permian, Carboniferous, and Ordovician from new to old.
Online since: December 2010
Authors: Wan Shan Wang, Wen Zheng Wu, Xing Jun Qin, Ya Dong Chen, Kun Peng Cui
After the reconstructive mandible 3D virtual model was established from the patient’s CT data [[] W.Z.
As a result of repeated storage, a large amount of, even redundant and rambling data were contained in STL file and triangle plates.
To solve this problem, the Triangle Reduction function should be employed to reduce triangle plates.
Online since: October 2013
Authors: Xu Guang Jia, Di Wang, Guo Zhong Sun
In this paper, we measure the energy consumption of China’s export so as to provide critical insights for the country’s policy-makers to refine the current intensity-reduction-oriented energy-efficiency policies.
The technical coefficient matrix for China’s economic benchmarks is C(42×42), while the sectors energy consumption data in China is 44-sector-based.
The technical coefficient matrix and energy consumption data in 2002, 2005, 2007 and 2010 is available from the statistics yearbook, which included total energy consumption, coal, coke, crude oil, gasoline, kerosene, diesel oil, fuel oil, natural gas, and electricity.
Online since: October 2013
Authors: Jie Li, Yong Hong Zhu, Sun Jian
Among the parameters, the temperature is measured by the thermocouple, the gas’s flow rate is derived after the gas velocity at the chimney’s outlet is measured by using the hot wire anemometer, and the air’s flow rate is gotten from the draught fan’s data plate.
Pressures at the gas outlet and air outlet are gotten by firstly calculating resistance along the outlet’s downstream pipes and then putting the resistance data into the Bernoulli equation, for measuring the pressures at the two outles is inconvenient.
References [1] Hu Guolin: Considerations to Energy Conservation and Emission Reduction of Ceramic Industry.
Online since: June 2013
Authors: Guang Ling Hu, Qin Li Wang, Yan Hong Liu
In other studies, a different set could be suggested, depending on the cost-benefit analysis of data collection and processing.
The data was collected on a daily basis, while the cost information reports were generated on a monthly basis.
As a result, price negotiation between the subcontractor and the general contractor based on the expected cost reduction related to the implementation of the suggested improvements.
Online since: December 2016
Authors: Herbert Danninger, Michael Josef Zehetbauer, Martin Lederer, Mitra Delshadmanesh, Golta Khatibi
This behavior, which can be mainly related to the distribution of inhomogeneities, defects and flaws in the tested Ti45Nb material, may explain the rather straight shape of the lifetime curve and the scatter of fatigue data.
It was found that surface defects resulted in early failure while samples containing internal defects showed a longer lifetime at a similar stress amplitude resulting in the scatter of fatigue data.
This effect is explained by a reduction of stress concentration near the sharp notches due to presence of strain gradients as confirmed by FEA.
Online since: March 2017
Authors: Wanchai Yodsudjai, Ponpan Setpittayakul
Loss of cross section area of the reinforcement leads directly to reduction in the load bearing capacity of the structure.
The strain and the current were recorded via a data-logger and a multi-meter respectively.
Casting Concrete 3 Days Casting Repair Material Fig. 2 Test specimens for simulation of repaired concrete 75 mm Strain gauge Fig. 3 Installation of strain gauge surrounding test specimen Data Logger Multi-meter Computer Strain Gauge DC Power supply Steel Plate NaCl Solution + - Fig. 4 Accelerated corrosion test set up Results and Discussion Table 2 Properties of repair-materials Material Diameter Rebar [mm] Covering [mm] Compressive Strength [kg/cm2] Modulus of Elasticity [kg/cm2] Concrete 12 44 190.08 293,398 Repair Mortar 12 44 318.47 262,014 Non-shrink grout cement 12 44 331.21 457,647 Table 2 shows the properties of repair materials.
Online since: July 2017
Authors: Madlen Ullmann, Michael Höck, Claudia Kawalla
Decreasing optimization potential concerning the weight reduction in aircraft and automotive components boost the demand for lightweight materials and new technologies.
The lack of significance in case of the thickness can be explained by the small variation of the data base.
The different proportion of the impact can be explained by the data base.
Tenenhaus et al., PLS path modelling, Computational statistics & data analysis 48 (1) (2005) 159-205
Online since: March 2010
Authors: Glenn Grant, Daniel G. Sanders, Mamidala Ramulu, Paul Edwards
As a cost and weight reduction tool, SPF also offers detail part and fastener reductions through the consolidation of separate stiffeners and multiple compound contour shaped detail parts into a single monolithic design.
The machine features a digital control system and automated data calculation for roughness parameters.
The data above is from FSW welds made at a constant feed rate of 1.27 mm/s, while varying the rotational velocity of the spindle RPM.
The data in a) is taken from the advancing side, b) is taken from the center and c) is taken from the retreating side of the weld.
The data points are linked with the dashed line that approximates their behaviour and from this it can be seen that PHR = 45 is the point in which a P/W ratio equal to 1.0 is observed.
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