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同济大学航空航天与力学学院仲政和赵金峰等在固体力学著名期刊“Journal of the Mechanics and Physics of Solids”上发表论文（图）
固体力学 弹性波宽频 超高能量密度 超分辨率聚焦
2021/3/30
近日，我校航空航天与力学学院仲政教授和赵金峰副教授与多家单位联合，在国际固体力学权威期刊“Journal of the Mechanics and Physics of Solids”（《固体力学与固体物理学杂志》）上发文，首次在实验和理论上实现了弹性波宽频和超高能量密度的超分辨率聚焦。超分辨率聚焦的典型特征是半宽比（FWHM）小于0.5倍波长λ0。现有研究中，负折射透镜、超分辨率透镜、超表面等结...
2018年流体/固体界面动力学建模与仿真及应用研讨会（Workshop on Modeling and Simulation of Interface Dynamics in Fluids/Solids and Applications）
2018年 流体 固体界面动力学 建模 仿真 应用 研讨会
2017/11/27
This one-month program will focus on modeling and simulation of the dynamics of interfaces, in particular, with moving contact lines, in fluid and solid systems. The objective of this program is to br...
昆明理工大学材料科学与工程学院材料科学基础课件Chapter 3 The Structure of Solids
昆明理工大学材料科学与工程学院 材料科学基础 课件 Chapter 3 The Structure of Solids
2017/4/17
昆明理工大学材料科学与工程学院材料科学基础课件Chapter 3 The Structure of Solids.
Just as the single-crystal silicon wafer forever changed the nature of communication 60 years ago, a group of Cornell researchers is hoping its work with quantum dot solids – crystals made out of crys...
BOOLEAN OPERATIONS OF TRIANGULATED SOLIDS AND THEIR APPLICATIONS IN THE 3D GEOLOGICAL MODELLING
Boolean operations Triangulated solids 3D Geological Modelling
2015/8/10
In this paper we present a new method for Boolean operations (intersection, union and difference) of triangulated solids, and its applications in three-dimensional (3D) computerized geological modelli...
Dynamics of unsaturated poroelastic solids at finite strain
unsaturated media porous media finite strain finite element method
2015/7/1
We derive the governing equations for the dynamic response of unsaturated poroelastic solids at finite strain. We obtain simplified governing equations from the complete coupled formulation by neglect...
Computational Aspects of Elasto-Plastic Deformation in Polycrystalline Solids
Computational Aspects Elasto-Plastic Deformation Polycrystalline Solids
2015/7/1
The overall elasto-plastic behavior of single crystals is governed by individual slips on crystallographic planes, which occur when the resolved shear stress on a critical slip system reaches a certai...
Conditions for instabilities in collapsible solids including volume implosion and compaction banding
Compaction band Deformation band Material instability Volume implosion
2015/7/1
We review conditions for material instabilities in porous solids induced by a bifurcation of solution into non-unique strain rate fields. Bifurcation modes considered include jumps in the strain rate ...
Bifurcation of elastoplastic solids to shear band mode at finite strain
Bifurcation Elastoplastic solids Shear bond mode Finite strain
2015/7/1
This paper formulates and implements a finite deformation theory of bifurcation of elastoplastic solids to planar bands within the framework of multiplicative plasticity. Conditions for the onset of s...
Possible centers of broadband near-IR luminescence in bismuth-doped solids: $Bi^{+}$, Bi$_5^{3+}$, and Bi$_4^0$
near-IR broadband
2011/9/13
Subvalent bismuth centers (interstitial Bi+ ion, Bi3+5 cluster ion, and Bi0 4 cluster) are examined as possible centers of broadband near-IR luminescence in bismuth-doped solids on the grounds of quan...
梨可溶性固形物含量NIR与变量筛选无损检测（Measurement of Soluble Solids Content in Pear by FT-NIR Spectroscopy and Variable Selection）
梨 可溶性固形物含量 近红外光谱
2010/12/28
为提高利用近红外光谱技术快速检测梨可溶性固形物含量的精度和稳定性，结合区间偏最小二乘和遗传算法（iPLS-GA）来筛选校正模型中的特征光谱区和变量，通过交互验证法确定模型中的主成分因子数和筛选的变量，并以预测均方根误差（RMSEP）和相关系数（Rp）作为模型评价标准。试验结果显示：iPLS-GA最优模型包含5个光谱区、50个变量和10个主成分因子。最佳预测模型相关系数（Rp）和RMSEP 分别为0...
SCALING OF PERMEABILITIES AND FRICTION FACTORS OF HOMOGENEOUSLY EXPANDING GAS-SOLIDS FLUIDIZED BEDS (GELDART'S A POWDERS AND MAGNETICALLY STABILIZED BEDS)
fluidization magnetic field stabilized bed friction factor
2009/10/13
The concept of a variable friction factor of fluid-driven deformable powder beds undergoing fluidization is discussed. The special problem discussed addresses the friction factor and bed permeability ...
南丰蜜桔可溶性固形物近红外特征波段选择（Selection of NIR Characteristic Wavelength Bands for Soluble Solids Content in Nanfeng Mandarin Fruit）
南丰蜜桔 可溶性固形物 近红外光谱 间隔偏最小二乘法
2009/8/11
探讨了在350～1800nm波段范围内不同光谱预处理方法对提高模型预测能力和稳定性的作用，但其效果不如间隔偏最小二乘法显著。通过间隔偏最小二乘特征波段选择方法，确定了南丰蜜桔可溶性固形物特征波段为：642～787nm、861～1006nm、1080～1152nm和1226～1371nm。采用30个未参与建模的南丰蜜桔样品，预测特征波段建模模型，预测模型的相关系数为0.95，预测均方根误差为0.55...
Estimation of solubility of solids in supercritical carbon dioxide
solid supercritical fluid solubility estimation
2009/4/21
Estimation of solubility of solids in supercritical carbon dioxide.