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Online since: August 2013
Authors: Yue Jun Fei, Bei Zhang, Hui Zhang, Pan Jun Du, Wen Jun Xiao, Mao Xun Gong
A lot of hydrological data were recorded according to project research surveys for nearly half a century, a lot of achievements were worked out because of the simulation technology unceasing development tidal current numerical improvement and application.
Study on the dynamic mechanism of landform analysis and investigation results mainly concentrated in the measured data and combining.
Research on the dynamic characteristics of the regional development of marine economy and disaster prevention and reduction is of great significance.
The latest data show, aquaculture area measured maximum tidal range is 8.07 m, Yangkou Port is 7.47 m, LV four is 6.40 m, the average tidal duration were between 6h-6h20min, the difference is only 5min-13min.
Result Analysis Research results of the measured data and existing showed that the tides are regular semidiurnal tide.
Online since: September 2014
Authors: Cheng Liu, Zhe Li, Hui Wang, Lei Xia
Nowadays we advocate low carbon economy, energy conservation and emission reduction, emphasize the harmonious development of human being and the nature.
The microgrid controlling strategy program judges the realtime status and energy flowing direction of the microgrid through collected data, connects the microgrid to the grid to charge or disconnects it from the grid to run in isolated island, cut off the unimportant loads to relieve loads need or put distributed generations to supply power to loads.
How to confirm the realtime status of microgrid and choose microgrid controlling plan by realtime running data of distributed generations, loads and storage equipment is core of the arithmetic.
Analysis of constructed microgrids in China In recent years because of the promotion of State Grid, also because of the effect of energy conservation, emission reduction and governance haze, kinds of microgrids with functions came out, and capacities of microgrids are distributed from dozens of kW to dozens of MW, related distributed generations are wind power, solar power, water and electricity, terrestrial heat and fuel cell, and structures of the microgrids are different everywhere.
Online since: October 2011
Authors: Jing Yu Ran, Liu Jie Zhao, Wei Feng Tu, Li Zhang
For example, when pressure changes from 0.1MPa to 0.2MPa, the mass fraction of carbon deposit is from 0.46% to 0.11% and the reduction is 0.35% at 823K.
While at 773K, the corresponding carbon deposit is from 0.64% to 0.04% and the reduction is 0.6% with the same change range of the pressure.
From the data and Fig 5, we can find that the Φ of the carbon deposit reduced more quickly than the H2 production and the methane conversion ratio under higher pressure zone.
If the pressure is too high, the reduction step of the carbon deposit, the H2 production and the CH4 conversion ratio is no longer obvious.
Ye: Practical handbook of thermodynamic data of inorganic, Beijing: Metallurgical Industry press(2002)
Online since: October 2011
Authors: Ahmet Ç. Çilingir, Vahdet Uçar, Ismail Çallı
Laboratory studies have reported reductions in wear volume (up to twenty times less wear compared with that of metal on polyethylene), which potentially offers a reduction in degree of osteolysis.
The reported simulator studies have demonstrated that COM friction couples have very good wear coefficients in comparison to MOM and these bearings have shown no bedding in and further reduction in wear rates [20].
Although these data are encouraging there are no medium to long term clinical studies to support the use of COM bearings outside of a clinical trial.
The author believes that ceramic-on-metal friction couples would be better design for hip resurfacing arthroplasty, although they requires more in vivo clinical data.
Online since: March 2020
Authors: Zi Yao Wei
In addition to water permeability, the structure also has the characteristics of moisturizing, noise reduction, sound absorption, anti-slip, cold resistance and weather resistance.
Sound absorption and noise reduction performance, related research shows that for the road surface and the vehicle itself The noise reduction measures can fundamentally weaken the traffic noise source [10], ​​greatly reduce traffic noise, and ensure the acoustic environment of residents along the line. 4.
This new brick-forming methods and materials also face many problems, for instance, the material has a short research time, lacks long-term durability data and corresponding specifications.
The first issue that needs to be solved is how to effectively combine geopolymers with raw materials and how to characterize and quantify, followed by consideration the amount of gelling agent and the influence of gelation time on strength, the water permeability can finally obtain quantitative data of the process.
Online since: April 2024
Authors: Edgar Ramos, Lourdes Banda, Nancy Sanchez
The results of the [12] after the implementation of RCM were obtained as results significant reductions as 29% with respect to machine breakdowns, 35% in the occurrence of defects and 15% in machine downtime.
According to [20] the low availability of the machines has therefore the reduction of mineral extraction levels in the mine, and consequently causes economic losses for the company.
The equipment's inactive periods are eliminated, and its optimal conditions are improved, allowing for a reduction of additional costs related to hiring third parties and production delays, hence increasing operational efficiency.
Guerra, “Data-Driven Condition Monitoring of Mining Mobile Machinery in Non-Stationary Operations Using Wireless Accelerometer Sensor Modules,” IEEE Access, vol. 9, pp. 17365–17381, 2021, doi: 10.1109/ACCESS.2021.3051583
Rathore, “Application of data mining for spare parts information in maintenance schedule: a case study,” J.
Online since: September 2011
Authors: Hao Xu, Ping Wang, Dan Liu, Jin Hui Xu, Rong Chen
Second, we should use track inspection car, laser measurement system and other advanced detection means to get the right data in long wavelengths track geometry irregularities, and then targeted to maintenance control the irregularities of turnout.
In the development process of high speed turnout, a number of real vehicle dynamic measurement experiments has conducted, take the Jiaoji PDL as an example[2], when the weld irregularities in 0.2mm/m range of the end of switch rail, and the EMU straight through turnout at the speed of 250km/h, the load reduction rate less than 0.3 (figure 3), but when the weld irregularities in 0.7mm/m range of the end of switch rail, the load reduction rate exceeded to the safety limit of 0.6 (figure 4) at the high speed driving condition.
And then to adjust the geometry state of turnout according to the measurement data until meet certain acceptance criteria to ensure the smooth of high speed turnout constantly repeat.
Due to the turnout plate and the sleeper bearing the force together, the rail role for rail in the link of interval iron, the whole stiffness of track is uneven distribution along the turnout, leading to the reduction of the driving comfort.
Online since: March 2007
Authors: Liang Meng, J.B. Liu
%Ag in our unpublished data.
%Ag drawn to a reduction in area of 99%.
The reduction of dislocation density after heavy drawing could also be observed in the Cu-24 wt.
Electrical conductivity Some presented data of the conductivity with different Ag contents are summarily given in Fig. 3.
Therefore, the development of a third constituent added to conventional binary alloys with low Ag contents is usually aimed at further strength improvement and cost reduction in raw materials.
Online since: December 2009
Authors: Daryoush Emadi, Musbah Mahfoud
Forecasts consistently predict rising Al usage as weight reduction programs continue. [2-5].
The data is given also in relation to the compound annual growth rate (CAGR).
They demonstrated that when the use of casting from end-of-life vehicles was expanded, Cu included in the aluminum casting could be predominant restriction for the reduction of virgin material.
Despite the extensive amount of data found in literature, the large numbers of these controlling parameters have made it difficult to predict and model mechanical properties by conventional techniques.
Poor segregation results in scrap being contaminated, and a subsequent reduction in its value
Online since: July 2021
Authors: Nikhil Aditya, Jyoti Vimal
In symmetric cross-ply laminate for an increase of 10mm depth of notch gives a minimum reduction in buckling load of 9.8%.
For antisymmetric cross-ply laminate, this reduction is 9.13% whereas for symmetric and antisymmetric angle-ply it is approximately 7%.
When end conditions of the plate are changed from clamped-clamped to clamped-pinned then reduction in critical buckling load is approximately 50% for both cross-ply and angle ply laminates.
[17] ANSYS 2020 R1,Engineering data ,Engineering data sources ,Composite material,Epoxy E-glass UD, ANSYS,Inc
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