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Seismic ground motion analysis of Shanghai Pudong Airport site considering the effects of spatial correlation and irregular topography

JIANG Tong, CHEN Laiyun, XING Hailing, L? Xilin

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 4, Pages 430-435 doi: 10.1007/s11709-007-0058-3

Abstract: The spectrum is used to generate the sets of spatially correlative horizontal and vertical seismic motionsFor indicating the effect of the spatial correlation of input motions, the horizontal uniform inputs,as well as the horizontal and vertical uniform input are carried out for the seismic response analysis

Keywords： surface ground horizontal uniform Finally seismic ground correlative seismic

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Assessment indices for uniform and non-uniform thermal environments

ZHANG Yufeng, SUN Shufeng, ZHAO Rongyi

Frontiers in Energy 2008, Volume 2, Issue 2, Pages 129-133 doi: 10.1007/s11708-008-0029-y

Abstract: 30 subjects reported their overall thermal sensation, thermal comfort, and thermal acceptability in uniformand non-uniform conditions.The results show that these three assessment indices provide equivalent evaluations in uniform environmentssensation differs from the other two indices and cannot be used as a proper index for the evaluation of non-uniform

Keywords： thermal sensation proper assessment relationship equivalent thermal acceptability

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Robust isogeometric topology optimization for piezoelectric actuators with uniform manufacturability

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0683-5

Abstract: effectively remove the critical issue induced by one-node connected hinges and simultaneously maintain uniformrepresentation to construct the eroded, intermediate, and dilated density distribution functions by non-uniform

Keywords： piezoelectric actuator isogeometric topology optimization uniform manufacturability robust formulation

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Effect of non-uniform illumination on performance of solar thermoelectric generators

Ershuai YIN, Qiang LI, Yimin XUAN

Frontiers in Energy 2018, Volume 12, Issue 2, Pages 239-248 doi: 10.1007/s11708-018-0533-7

Abstract: The non-uniform illumination caused by the optical concentrator may affect the performance of solar thermoelectricThe influences of non-uniform illumination on the temperature distribution, the voltage distribution,generators with 32, 18 and 8 pairs of thermocouples are compared to investigate their capability under non-uniformThe non-uniform solar illumination will weaken the capability of the TE generator, and the maximum outputReducing the number of the thermoelectric legs for non-uniform solar illumination can greatly increase

Keywords： solar thermoelectric generators non-uniform solar illumination performance evaluation solar energy

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Nodal, zonal, or uniform electricity pricing: how to deal with network congestion

Martin WEIBELZAHL

Frontiers in Energy 2017, Volume 11, Issue 2, Pages 210-232 doi: 10.1007/s11708-017-0460-z

Abstract: ., nodal, zonal, and uniform electricity pricing, are surveyed.

Keywords： nodal pricing zonal pricing uniform pricing competitive electricity markets welfare maximization redispatch

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Controlled synthesis of uniform silver nanowires with high aspect ratios in aqueous solutions of gemini

XU Jian, LIU Weijun, LIU Honglai, HU Ying

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 3, Pages 221-227 doi: 10.1007/s11705-007-0040-6

Abstract: dibromide (16-3-16), the growth of silver could be directed into a highly anisotropic mode to form uniformsilver nanowires, indicating the formation of a highly pure phase, good crystallinity, as well as a uniform

Keywords： solution-phase photoelectron spectroscopy 16-3-16 surfactant transmission

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Natural convection heat transfer of water in a horizontal circular gap

SU Guanghui, WU Yingwei, Kenichiro Sugiyama

Frontiers in Energy 2007, Volume 1, Issue 2, Pages 167-173 doi: 10.1007/s11708-007-0021-y

Abstract: An experimental study on the natural convection heat transfer on a horizontal downward facing heatedbuoyancy force acts as a resistance force for natural convection heat transfer on a downward facing horizontal

Keywords： function diameter different independent different characteristic horizontal downward

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Preparation of hydrogels with uniform and gradient chemical structures using dialdehyde cellulose and

Peiwen Liu, Carsten Mai, Kai Zhang

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 3, Pages 383-389 doi: 10.1007/s11705-018-1718-7

Abstract: Herein, we report the formation of hydrogels with either uniform or gradient internal structures viaAs-prepared hydrogels exhibited uniform microscopic and chemical structure or gradient distribution of

Keywords： hydrogel uniform gradient dialdehyde cellulose ammonia gas diamine

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Numerical simulation of liquid falling film on horizontal circular tubes

Fengdan SUN, Songlin XU, Yongchuan GAO

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 3, Pages 322-328 doi: 10.1007/s11705-012-1296-z

Abstract: The objective of this study is to investigate numerically the flow characteristics of falling film on horizontalvelocity distributions of the upper and lower parts of the tube are not strictly symmetric and non-uniform

Keywords： falling film horizontal tube flow characteristics film thickness liquid feeder height

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Orderly decorated nanostructural photoelectrodes with uniform spherical TiO

A. M. Bakhshayesh,S. S. Azadfar

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 4, Pages 532-540 doi: 10.1007/s11705-015-1549-8

Abstract: This study presents a novel nanostructural electrode made of 20-nm-diameter nanoparticles, which orderly decorated with 2-µm TiO particles, deposited by a new gel process. The decorated electrode (DE) is better than the non-decorated electrode (NE) in both light scattering and light harvesting, as confirmed by diffuse reflectance spectroscopy. X-ray diffraction reveals that both electrodes have a mixture of anatase and rutile phases. The dye-sensitized solar cell based on the decorated electrode shows the highest power conversion efficiency of 7.80% as a result of less recombination demonstrated by electrochemical impedance spectroscopy. From internal power conversion efficiency measurement, the external quantum efficiency of DE cell at 530 nm is 89%, which is higher than that of NE cell (77%).

Keywords： dye-sensitized solar cell uniform particles TiO₂ gel process light harvesting

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Numerical analysis of bearing behaviors of single batter piles under horizontal loads in various directions

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 2, Pages 224-237 doi: 10.1007/s11709-022-0914-1

Abstract: The horizontal bearing behavior of a single batter pile (SBP) is vital to its application in practicalengineering; however, the horizontal responses of SBPs change with the directions of horizontal loadsTherefore, the directional differences in the horizontal bearing behaviors of SBPs are investigated inon the horizontal bearing capacities and distributions of the bending moments of the SBPs.Subsequently, the differences in the responses of the SBPs under horizontal loads in various directions

Keywords： single batter pile skew horizontal load model test finite-element analysis empirical design method

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Experimental study on shear behavior of reinforced concrete beams with web horizontal reinforcement

Dong XU,Yu ZHAO,Chao LIU

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 4, Pages 325-336 doi: 10.1007/s11709-014-0080-1

Abstract: concrete beams, current codes do not provide any calculation method to evaluate the influence of web horizontalcomprises results of 11 reinforced concrete beams in an effort to investigate the influence of web horizontaldesign variables are the shear-span-depth ratio, different reinforcement ratio of stirrups and web horizontalInfluence of web horizontal reinforcement on crack patterns and failure mode was studied.It was found that web horizontal reinforcement can increase the shear capacity of the beams and restrain

Keywords： reinforced concrete beam shear strength web horizontal reinforcement experiments

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Optimization model for rotor blades of horizontal axis wind turbines

LIU Xiong, CHEN Yan, YE Zhiquan

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 4, Pages 483-488 doi: 10.1007/s11465-007-0084-9

Abstract: This paper presents an optimization model for rotor blades of horizontal axis wind turbines.

Keywords： population extended algorithm developed optimization accurate

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Analytical and numerical investigation into the longitudinal vibration of uniform nanotubes

Masoud MASOUMI,Mehdi MASOUMI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 2, Pages 142-149 doi: 10.1007/s11465-014-0292-z

Abstract:

In recent years, prediction of the behaviors of micro and nanostructures is going to be a matter of increasing concern considering their developments and uses in various engineering fields. Since carbon nanotubes show the specific properties such as strength and special electrical behaviors, they have become the main subject in nanotechnology researches. On the grounds that the classical continuum theory cannot accurately predict the mechanical behavior of nanostructures, nonlocal elasticity theory is used to model the nanoscaled systems. In this paper, a nonlocal model for nanorods is developed, and it is used to model the carbon nanotubes with the aim of the investigating into their longitudinal vibration. Following the derivation of governing equation of nanorods and estimation of nondimensional frequencies, the effect of nonlocal parameter and the length of the nanotube on the obtained frequencies are studied. Furthermore, differential quadrature method, as a numerical solution technique, is used to study the effect of these parameters on estimated frequencies for both classical and nonlocal theories.

Keywords： continuum theory differential quadrature method nanorod longitudinal vibration

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Exponential polynomial uniform splines model

Zhao Yanli,Ping Ping,Liu Fengyu

Strategic Study of CAE 2008, Volume 10, Issue 7, Pages 147-152

Abstract:

A new model of k( k ≥ 3) order exponential polynomial uniformThe spline curves which are constructed by the exponential polynomial uniform splines can adjust the

Keywords： exponential polynomial uniform spline function uniform B - spline function shape parameter