全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
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作者:Wei Liu , Feng Li , Fuhua Yan ...
来源:[J].China Foundry(IF 0.346), 2017, Vol.14 (2), pp.108-120Springer
摘要:Shrinkage porosity is a type of random distribution defects and exists in most large castings. Different from the periodic symmetry defects or certain distribution defects, shrinkage porosity presents a random “cloud-like” configuration, which brings difficulties in quan...
作者:D. Concer , P. V. P. Marcondes
来源:[J].Journal of the Brazilian Society of Mechanical Sciences and Engineering(IF 0.234), 2017, Vol.39 (8), pp.3079-3088Springer
摘要:The resulting porosity is responsible to 70% of failures on the high-pressure aluminum die casting process. The determination of the origin and setting the pore elimination is a complex mechanism. There are several factors that induce their occurrence. Thus, it is common to emplo...
作者:Martti Kaasalainen , Vladimir Aseyev , Eva von Haartman ...
来源:[J].Nanoscale Research Letters(IF 2.524), 2017, Vol.12 (1), pp.1-10Springer
摘要:... We hypothesize that conventional light scattering (LS) methods can be used for a rigorous characterization of medium sensitive nanoparticles’ properties, like size, stability, and porosity. Two fundamentally different silicon-based nanoparticles were made: porous silicon (...
作者:BoJing Zhu , HuiHong Cheng , YanChao Qiao ...
来源:[J].Chinese Science Bulletin(IF 1.319), 2012, Vol.57 (4), pp.320-327Springer
摘要:Abstract(#br)Based on the hybrid hypersingular integral equation-lattice Boltzmann methods (HHIE-LBM), the porosity and permeability evolution and evaluation process in anisotropic saturated porosity multiscale-multiphase-multicomponent (ASP-MS-MP-MC) structures under ultra high...
作者:M. A. Eltaher , N. Fouda , Tawfik El-midany ...
来源:[J].Journal of the Brazilian Society of Mechanical Sciences and Engineering(IF 0.234), 2018, Vol.40 (3), pp.1-10Springer
摘要:... We implement a modified porosity model that represents porosity and Young’s modulus in an implicit form, where the density is assumed as a function of the porosity parameter, while Young’s modulus is assumed as a ratio of the mass density with porosity to that without porosity...
作者:Trishikhi Raychoudhury , Vikranth Kumar Surasani
来源:[J].Journal of Earth System Science(IF 0.695), 2017, Vol.126 (4)Springer
摘要:... To achieve the objectives, a one-dimensional transport model is developed by considering particle deposition, detachment, and straining mechanisms along with the effect of changes in porosity resulting from retention of NZVI particles. Two different flow conditions are c...
作者:Hong-mei Yang , Zhi-peng Guo , Hua-zhong Yang ...
来源:[J].China Foundry(IF 0.346), 2019, Vol.16 (4), pp.232-237Springer
摘要:... Porosity and mechanical properties were investigated by using optical microscopy (OM), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray computed tomography (XCT) and tensile tester. Results show that porosities including gas porosity and shrinka...
作者:Arfan Majeed , Muhammad Muzamil , Jingxiang Lv ...
来源:[J].Journal of the Brazilian Society of Mechanical Sciences and Engineering(IF 0.234), 2019, Vol.41 (6), pp.1-13Springer
摘要:..., solution heat treatment (SHT) and artificial aging (AA) on the densification and porosity of the thin-walled specimens. Thin-walled specimens with various wall thicknesses (i.e., from 0.50 to 5.0 mm) were fabricated using AlSi10Mg alloy powder with optimal process parameter...
作者:Jian Li , ChengGang Zhao , GuoQing Cai ...
来源:[J].Chinese Science Bulletin(IF 1.319), 2013, Vol.58 (27), pp.3422-3429Springer
摘要:Abstract(#br)In this paper, based on the porous media theory, the specific expressions of the total stress and the input work of unsaturated expansive soils with double porosity are proposed, and then the energy-conjugate variables are further derived. We make distinctions betwee...
作者:A P Rubshtein , E B Makarova , D G Bliznets ...
来源:[J].Bulletin of Materials Science(IF 0.584), 2017, Vol.40 (3), pp.453-457Springer
摘要:... Three types of the open-porous scaffolds made of spongy titanium granules (porosity 0.3, 0.4 and 0.5, Young’s modulus 4.4, 3.5 and 0.6 GPa) were implanted into a bone defect of sheep. Time dependences of the Young’s modulus of titanium scaffold–bone tissue biocomposit...

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