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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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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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Efficient coherent detection of maneuvering targets based on location rotation transform and non-uniform Research Articles

Ke Jin, Tao Lai, Yan-li Qi, Jie Huang, Yong-jun Zhao,jinke_xd@outlook.com

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 8,   Pages 1251-1266 doi: 10.1631/FITEE.1900272

Abstract: Long-term can remarkably improve the ability of detection and motion of radar for s. However, the linear range migration, quadratic range migration (QRM), and Doppler frequency migration within the coherent processing interval seriously degrade the detection and estimation performance. Therefore, an efficient and noise-resistant method based on and is proposed. QRM is corrected by the second-order keystone transform. Using the relationship between the rotation angle and Doppler frequency, a novel phase compensation function is constructed. Motion parameters can be rapidly estimated by LRT and NuFFT. Compared with several representative algorithms, the proposed method achieves a nearly ideal detection performance with low computational cost. Finally, experiments based on measured radar data are conducted to verify the proposed algorithm.

Keywords： Coherent integration     Maneuvering target     Parameter estimation     Location rotation transform (LRT)     Non-uniform    

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Improved Matching Algorithms for Linear Face Class Model

Fu Yun,Zheng Nanning

Strategic Study of CAE 2005, Volume 7, Issue 2,   Pages 47-56

Abstract: A new method——Dynamic Gaussian Pyramid Analysis (DGPA), which combines Non-Uniform Sampling

Keywords： facial modeling     model matching     stochastic gradient descent     non-uniform sampling     multiresolution analysis    

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Implementation of an adaptive feed speed 3D NURBS interpolation algorithm

LIANG Hong-bin, WANG Yong-zhang, LI Xia

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 4,   Pages 403-408 doi: 10.1007/s11465-006-0047-6

Abstract: NURBS (non-uniform rational B-spline) interpolation algorithms have been provided in modern CNC (computer

Keywords： NURBS parametric     rational B-spline     second-order     non-uniform rational     precision    

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Highly uniform Ni particles with phosphorus and adjacent defects catalyze 1,5-dinitronaphthalene hydrogenation

Wei Xiong, Susu Zhou, Zeyong Zhao, Fang Hao, Zhihui Cai, Pingle Liu, Hailiang Zhang, Hean Luo

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 4,   Pages 998-1007 doi: 10.1007/s11705-020-1994-x

Abstract: activated carbon support, with defects and heteroatoms (N,P-ACs) by nitrogen and phosphorus doping to load non-nobledefects formed by heteroatom doping are beneficial to nickel anchoring and deposition to form highly uniform

Keywords： nitrogen and phosphorus doping     non-noble nickel catalyst     aromatic compounds hydrogenation    

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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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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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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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Torsional behavior of triangular web profile (TRIWP) steel section by experimental study

Fatimah DE’NAN,Hazwani HASAN,Mohd Hanim OSMAN,Sariffudin SAAD

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 4,   Pages 409-419 doi: 10.1007/s11709-016-0358-6

Abstract: A triangular web profile (TriWP) is a modified section where the flanges are connected to a web plate of triangular profile. This study examined the torsional behavior of TriWP steel sections and compared to that of the flat web (FW) steel sections. Three types of specimen sizes were used: 180 mm × 75 mm × 5 mm × 2 mm, 200 mm × 100 mm × 8 mm × 6 mm, and 200 mm × 100 mm × 6 mm × 5 mm. All the specimens were loaded vertically until the maximum load was achieved and then the load was released. For both types of specimens, it was observed that the torsional rotation for bigger size [200 mm × 100 mm × 8 mm × 6 mm] were smaller than that of smaller size [180 mm × 75 mm × 5 mm × 2 mm] of the specimens. At the maximum torsional loading, the experimental result was compared to the theoretical calculation. The comparison showed that the percentage difference ranged from 1.10% to 16.80%. From the graph of torsional load versus rotational angle, the torsional rotation for all TriWP steel sections were smaller than that of the FW steel section under the same torsional loading i.e., 0.2 kNm and 1 kNm. The range between FW and TriWP were 3.74 to 71.83 at 0.2 kNm while 14.5 to 75.1 at 1.0 kNm. The findings were shown that the TriWP steel sections had better resistance against torsion in comparison to FW steel section.

Keywords： corrugated web     i-beam     non uniform steel section     torsion resistance     torsion angle     triangular web profile    

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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: The decorated electrode (DE) is better than the non-decorated electrode (NE) in both light scattering

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

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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    

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Centrifugal compressor blade optimization based on uniform design and genetic algorithms

SHU Xinwei, GU Chuangang, XIAO Jun, GAO Chuang

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 453-456 doi: 10.1007/s11708-008-0083-5

Abstract: An optimization approach to centrifugal compressor blade design, incorporating uniform design method

Keywords： information     computational     centrifugal compressor     regression analysis     CFD    

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Title Author Date Type Operation

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

Ershuai YIN, Qiang LI, Yimin XUAN

Journal Article

Assessment indices for uniform and non-uniform thermal environments

ZHANG Yufeng, SUN Shufeng, ZHAO Rongyi

Journal Article

Efficient coherent detection of maneuvering targets based on location rotation transform and non-uniform

Ke Jin, Tao Lai, Yan-li Qi, Jie Huang, Yong-jun Zhao,jinke_xd@outlook.com

Journal Article

Improved Matching Algorithms for Linear Face Class Model

Fu Yun,Zheng Nanning

Journal Article

Implementation of an adaptive feed speed 3D NURBS interpolation algorithm

LIANG Hong-bin, WANG Yong-zhang, LI Xia

Journal Article

Highly uniform Ni particles with phosphorus and adjacent defects catalyze 1,5-dinitronaphthalene hydrogenation

Wei Xiong, Susu Zhou, Zeyong Zhao, Fang Hao, Zhihui Cai, Pingle Liu, Hailiang Zhang, Hean Luo

Journal Article

Robust isogeometric topology optimization for piezoelectric actuators with uniform manufacturability

Journal Article

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

Martin WEIBELZAHL

Journal Article

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

XU Jian, LIU Weijun, LIU Honglai, HU Ying

Journal Article

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

Peiwen Liu, Carsten Mai, Kai Zhang

Journal Article

Torsional behavior of triangular web profile (TRIWP) steel section by experimental study

Fatimah DE’NAN,Hazwani HASAN,Mohd Hanim OSMAN,Sariffudin SAAD

Journal Article

Orderly decorated nanostructural photoelectrodes with uniform spherical TiO

A. M. Bakhshayesh,S. S. Azadfar

Journal Article

Analytical and numerical investigation into the longitudinal vibration of uniform nanotubes

Masoud MASOUMI,Mehdi MASOUMI

Journal Article

Exponential polynomial uniform splines model

Zhao Yanli,Ping Ping,Liu Fengyu

Journal Article

Centrifugal compressor blade optimization based on uniform design and genetic algorithms

SHU Xinwei, GU Chuangang, XIAO Jun, GAO Chuang

Journal Article