Search results

It is indicated by the results that the residual stress in surface layer of slab material is the pressure stress and inside the plate is the tension stress under the smaller press quantity, the residual stress in surface layer is the tension stress and inside the slab is the pressure stress under bigger press quantity, the maximum residual tension stress in the slab becomes bigger with the increment of the reduction.
Data Input Established Model Material Property Work Piece Propertiy Rolling Process Status Loading Node Force Matrix Resolving Counting Stress Constringenc Counting Stop Results Post Next Increment Adaptive Mesh Result Output Load Increment N Y N Y Fig.1 Analysis flowchart Model Condition Fig2 shows the temperature and force coupling roll model.

And this leads to a considerable reduction in the run-out error of spindle head.
Based on the data in Table 1, the radial run-out error and axial run-out error are calculated and the results are 3.3mm and 2.8mm, respectively.

These data are presented and discussed.
These data show that the Si excess has a very important role in determining the Er emission, both under direct and carrier-mediated excitation with an opposite behaviour in the two cases.
These data are summarized in Fig. 2a where the PL intensity at 1535 nm measured either by pumping with the 476.5 nm (carrier-mediated) or with the 980 nm (resonant) laser line is reported as a function of the total Si concentration.
These data are compared with the lifetime of the Si-nc luminescence measured at 700 nm in similar samples not implanted with Er (multiplied by a factor of 200 to allow the comparison).
This phenomenon presumably occurs through a reduction of the defect density of the material.

As shown in panel estimation of 30 provinces’ data in China, urban industry and building and transportation have positive effect on carbon emissions, industry the biggest, and building and transportation also significant.
Traffic including different modes of transportation and different displacement of transportation tools such as highway, railway, aviation and waterway transportation, and cargo and passenger, it is difficult to collect and process data, this paper make simple processing, so this paper simplifies to choose transportation line length as explained variable of transportation, Which sums up line length of all kinds of traffics such as railway, highway, highway, waterway, civil aviation routes and pipeline oil mileage.Model is as follows: (1) is urban total carbon emissions (energy consumption) of province in years, is value added of industry of province in years, is urban buildings area of province in years,, is transportation line length of province in years, is error, andandare respectively flexibility coefficients of urban carbon emissions (energy consumption) to second industry output value added and urban buildings area and transportation
Data of value added of industry and transportation line length and urban buildings area comes from 1996-2009 China statistical yearbooks.
Result Based on the model (1), using panel data of 30 provinces in China, this paper makes least squares estimation.
Secondly, too rapid growth of urban energy consumption and carbon emissions will threaten China's sustainable development of urbanization and industrialization, so we need to accelerate industrial areas of energy conservation and emission reductions, and realize low-carbon development in building and transportation.

Questionnaire design data collection.
The data collection was divided into two parts: (1) Primary data: survey of the LED industry
Questionnaire design and data analysis.
This study employed SPSS17.0 statistical software programs for data analysis, data reliability and descriptive statistical analysis.
Data Analysis Analysis of questionnaire data.

This paper shows an approach for the reduction of these shortfalls.
Introduction Fringe projection systems are increasingly used in industry for the inspection of workpieces due to short measurement duration, robustness and laminar data acquisition.
The multiple contradictory requirements to be fulfilled can be grouped in two categories: § technical requirements t: Holistic data acquisition, low measurement uncertainty, overlapping zones of datasets for data fusion, robustness, etc.; § economical requirements e: Short inspection time, minimal inspection costs, minimal number of measurements, low sensor costs, low changeover efforts etc.

The energy and thermodynamic analysis of the CCP carried out gave result with the cycle efficiency of 94.92%, an efficient process with 20% energy reduction due to compression and pumping action done by incorporating pumps in the process.
The use of electrochemical CO2 reduction reaction as a carbon recycling method to minimize the amount of CO2 levels in the atmosphere, (the major reason for climate change,) in order to control global warming within relatively safe level [14] gave rise to alternative fuel, such as CO, CH4, hydrocarbons, and alcohols.
The materials used in this article are: physiochemical and thermodynamic data (including data from the plant, Aspen HYSYS, flue gas characterization, and MEA), design textbook, CCP, and process flow diagram shown in Figure 1.
Input Parameter for Simulation S/N Parameter Value/Unit 1 Flue Gas Characterization CO2 8.7%, H2O 17.8%, N2 73.3%, O2 0.2%, SO2 0.0017%, and NOX 0.0097% all in mol/mol basis. 2 Process Conditions Pressure 101.6kPa, Temperature 1500C, and Flow rate 500tons/day 3 HYSYS Data Process flow diagram, Process flow sheets Results and Discussions The simulation results, the mass balance and design specifications results, mechanical design results and energy and cost results are summarily presented in tables 1 to 12.
Qingyu, Machine Learning Assisted Understanding and Discovery of CO2 Reduction Reaction Electrocatalyst, A publication of American Chemical Society, Journal of Physical Chemistry. 127, 2 (2023) 882-893

It is worth noting that there has been an immense improvement in noise reduction since the introduction of "jet airliners" (> 20 dB of EPNdB -Effective Perceived Noise-). 2.
The horrendous increase of oil price since the end of 2004 has made the governments and decision makers conscious of the fact that fossil fuels reserves are depleting and many think tanks are pondering over the future energy resources and alternative energy options.Let us now examine some basic data regarding air transport and the shared objectives during the next fifteen years : The "passenger" consumption can be expressed, for example, in terms of seat-mile/US gallon ; Figure 1 shows that airliner fuel efficiency has increased almost in a linear manner since the introduction of Comet 1 aircraft in 1952 [2].
Such a reduction in pK would require some significant breakthrough in aircraft configuration, aerodynamics, propulsion as well as materials and structures. 1.
Concurrently, research effort for the past 10 years has allowed to understand the various sources of noise and propose noise reduction strategies.
It is also worth mentioning that the International Civil Aviation Organization (ICAO), puts the NOx reduction in cruise speed at its priority list.

These additional treatments may involve pulverization, heat conditioning in a furnace to reduce carbonaceous and volatile components, chemical treatment, and/or reduction of nanoparticle size.
Recycling agricultural solid waste offers several advantages, including the reduction of greenhouse gas emissions and the reduction in reliance on fossil fuels.
In terms of mechanical properties, the composites exhibited enhancements compared to the base matrix, except a minor reduction in impact energy.
Mechanical properties of these composites were evaluated, including tensile strength, tensile modulus, hardness, impact energy, percentage elongation, and percentage reduction in area.
Graphical representations of experimental and ANN predicted data for mechanical and electrical properties of AlSiC composite prepared by stir casting method.

Simplified Dynamic Finite-Element Analysis for Three-Dimensional Pile-Grouped-Raft-High-Rise Buildings * Hui Xiong, Shou-ping Shang, Liang Huang Research Institute of Disaster Reduction,College of Civil Engineering, Hunan Univ, Changsha,Hunan 410082,China xionghui5320@21cn.com, xionghui5320@163.com Keywords: pile-soil-structure interaction; three-dimesional FEM; simplified nonlinear pile-soil interaction; S-R impedance spring-dashpot element; seismic dynamic response Abstract: Combined with the respective advantages in S-R(Sway-Rocking) impedance concept and finite-element method, a simplified 3D structural dynamic FEM considering composite pile-group-soil effects is presented.
The response of structural internal forces will be of the different reduction considering SSI with various input seismic waves and the reduction(20%~40%) with PAK-wave is more than the reduction(10％~30％) with SFD-wave under the combination of pile-soil condition(R0=0.3m, Gs1=12000kPa), but the 1.5m 1.5m 1.5m 1.5m 1.5m 1.5m 1.5m 1.5m 1.5m 1.5m 1.5m 1.5m 3.0m 1.5m1.5m 1.5m1.5m 1.5m1.5m 1.5m1.5m 3.0m 3.0m 3.0m 24.0m x 3.0m 3.0m 3.0m ξ ξ ξ ρ h h h ρ ρ V V V 1 2 3 1 1 2 3 2 3 =85m/s =120m/s =180m/s =10% =8% =8% =1.75Mg/m =5.0m =5.0m =5.0m =1.80Mg/m =2.00Mg/m SFD-Wave s s m/s m/s PAK-Wave 0 5 2 2 10 15 -1.5 -1 -0.5 0 0.5 1 1.5 0 5 10 15 -1.5 -1 -0.5 0 0.5 1 1.5 (a) View of model elements (b) Plane of pile-raft-soil elements (c) Excitation input and soil profile properties Fig.2.
Basic parameters of structural members Storey Beams Columns Piles A (m 2) I (m 4) m' (kg/m) A (m 2) I (m 4) m' (kg/m) L (m) R0 (m) m' (kg/m) 1~5 0.24 0.0144 1735 0.36 0.0108 900 15 0.6 1256 6~10 0.21 0.0126 1670 0.25 0.0052 625 11~15 0.18 0.0108 1610 0.16 0.0021 400 (Note: the distribution mass m ' of beams includes the mass of slabs, the thickness of slabs is 100mm) latter reduction in bottom storey is very small.
The maximum increment in roof displacement is about up to 59%(SFD), 18%(PAK), while the maximum reduction in roof acceleration is about up to 30%(SFD), 20%(PAK).
From the computational data as shown in Table.2, the front three period ratio decrease from 1.294s↓1.072s,1.217s↓1.041s,0.735↓0.681s respectively with Gs=4500kPa and R0 from 0.2m↑0.45m.