PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON PHYSICAL MESOMECHANICS. MATERIALS WITH MULTILEVEL HIERARCHICAL STRUCTURE AND INTELLIGENT MANUFACTURING TECHNOLOGY最新文献

Multilevel calcium phosphate coating: A model of bone-like topography for osteoimmunology 多层磷酸钙涂层:用于骨免疫学的骨样地形模型

PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON PHYSICAL MESOMECHANICS. MATERIALS WITH MULTILEVEL HIERARCHICAL STRUCTURE AND INTELLIGENT MANUFACTURING TECHNOLOGY Pub Date : 2020-12-14 DOI: 10.17223/9785946219242/231

L. Litvinova, V. Malashchenko, E. Shunkin, V. Shupletsova, O. Khaziakhmatova, K. Yurova, E. Melashchenko, I. Khlusov, E. Komarova, V. Chebodaeva, Y. Sharkeev

{"title":"Multilevel calcium phosphate coating: A model of bone-like topography for osteoimmunology","authors":"L. Litvinova, V. Malashchenko, E. Shunkin, V. Shupletsova, O. Khaziakhmatova, K. Yurova, E. Melashchenko, I. Khlusov, E. Komarova, V. Chebodaeva, Y. Sharkeev","doi":"10.17223/9785946219242/231","DOIUrl":"https://doi.org/10.17223/9785946219242/231","url":null,"abstract":"Osteoimmunolgy describes the interactions between blood immune cells and human multipotent mesenchymal stromal cells (hMMSCs) as a basis of successful wound and fracture healing. The aim was to investigate in vitro interaction of adipose-derived hMMSCs and human blood mononuclear cells (hBMNCs) modulated by calcium phosphate (CaP) coating in 3D culture. Titanium plates (10 × 10 × 1 mm3) with micro-arc bilateral multilevel CaP coatings were used. Cell-IQ phase-contrast microscopy and the real-time cell analyzer (RTCA) showed the CaP coating and hBMNCs synergistic negative effects on hMMSC motility that could be conditioned by enhanced osteogenic differentiation of stromal cells. Indeed, a 10-fold increase in the bone mineralization around the CaP-coated samples was detected in the mixed (hBMNCs + hMMSCs) 3D culture. Thus, cellular and molecular crosstalk between hBMNCs and hMMSCs modulated by multilevel micro-arc CaP coating with bone-like topography is an effective 3D model to study in vitro the novel pathways of osteoimmunology.","PeriodicalId":408630,"journal":{"name":"PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON PHYSICAL MESOMECHANICS. MATERIALS WITH MULTILEVEL HIERARCHICAL STRUCTURE AND INTELLIGENT MANUFACTURING TECHNOLOGY","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133561106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical investigation of refractory stress-strain condition under transient thermal load 瞬态热载荷下耐火材料应力-应变状态的数值研究

PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON PHYSICAL MESOMECHANICS. MATERIALS WITH MULTILEVEL HIERARCHICAL STRUCTURE AND INTELLIGENT MANUFACTURING TECHNOLOGY Pub Date : 2020-12-14 DOI: 10.1063/5.0034479

A. V. Zabolotskiy, M. Turchin, V. Khadyev, A. O. Migashkin

引用次数: 5

Hierarchical aluminum oxyhydroxide as nanoparticles carrier 层次化氢氧化铝作为纳米颗粒载体

PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON PHYSICAL MESOMECHANICS. MATERIALS WITH MULTILEVEL HIERARCHICAL STRUCTURE AND INTELLIGENT MANUFACTURING TECHNOLOGY Pub Date : 2020-12-14 DOI: 10.17223/9785946219242/262

N. Svarovskaya, E. Glazkova, O. Bakina, M. Lerner

{"title":"Hierarchical aluminum oxyhydroxide as nanoparticles carrier","authors":"N. Svarovskaya, E. Glazkova, O. Bakina, M. Lerner","doi":"10.17223/9785946219242/262","DOIUrl":"https://doi.org/10.17223/9785946219242/262","url":null,"abstract":"The article reports on the preparation and properties of composite nanoparticles based on aluminum oxyhydroxide AlOOH with high antimicrobial activity. To obtain silver-modified AlOOH, Al and Al-Ag nanoparticles obtained by electric explosion of wires were used. The synthesis was carried out under “environmentally friendly” conditions by the oxidation of the nanoparticles with water at a temperature of 65°C. As a result of the bimetallic Al-Ag nanoparticles oxidation, porous AlOOH-Ag agglomerates are formed with inclusions of silver nanoparticles 5–30 nm in size. Oxidation of Al nanopowder yields AlOOH agglomerates, consisting of folded boehmite nanosheets with a size of about 200 nm and a thickness of 2–5 nm. A colloidal silver solution was used to modify AlOOH, and AlOOH(Ag) nanostructures were obtained. The resulting nanostructures AlOOH-Ag and AlOOH(Ag) had pronounced antimicrobial properties. The AlOOH-Ag composite possessed the highest antimicrobial activity due to the formation of a large number of small silver nanoparticles resulting from dealloying of the initial Al-Ag nanoparticles. The presented results open up new possibilities for the synthesis of metal oxide nanocomposites using hierarchical aluminum oxyhydroxide which can be used in catalysis, biomedical applications, water treatment technologies, etc.","PeriodicalId":408630,"journal":{"name":"PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON PHYSICAL MESOMECHANICS. MATERIALS WITH MULTILEVEL HIERARCHICAL STRUCTURE AND INTELLIGENT MANUFACTURING TECHNOLOGY","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116766250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Poly(lactic acid) based polymer composites for biomedicine 生物医药用聚乳酸基高分子复合材料

PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON PHYSICAL MESOMECHANICS. MATERIALS WITH MULTILEVEL HIERARCHICAL STRUCTURE AND INTELLIGENT MANUFACTURING TECHNOLOGY Pub Date : 2020-12-14 DOI: 10.17223/9785946219242/230

S. M. Lebedev, I. Khlusov, D. M. Chistokhin

引用次数: 1

Influence of the current density on CaP coating growth during the US-assisted micro-arc oxidation us辅助微弧氧化过程中电流密度对CaP涂层生长的影响

PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON PHYSICAL MESOMECHANICS. MATERIALS WITH MULTILEVEL HIERARCHICAL STRUCTURE AND INTELLIGENT MANUFACTURING TECHNOLOGY Pub Date : 2020-12-14 DOI: 10.1063/5.0034140

E. Kazantseva, E. Komarova

引用次数: 0

Block displacement in the presence of a friction spot 存在摩擦点时的块位移

PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON PHYSICAL MESOMECHANICS. MATERIALS WITH MULTILEVEL HIERARCHICAL STRUCTURE AND INTELLIGENT MANUFACTURING TECHNOLOGY Pub Date : 2020-12-14 DOI: 10.1063/5.0034777

Y. Stefanov, R. Bakeev, G. Kocharyan

引用次数: 0

Influence of the nutation angle of a steel impact at high-velocity interaction with a concrete barrier 钢筋与混凝土障壁高速相互作用时章动角的影响

PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON PHYSICAL MESOMECHANICS. MATERIALS WITH MULTILEVEL HIERARCHICAL STRUCTURE AND INTELLIGENT MANUFACTURING TECHNOLOGY Pub Date : 2020-12-14 DOI: 10.1063/5.0034218

P. Radchenko, S. Batuev, A. Radchenko

{"title":"Influence of the nutation angle of a steel impact at high-velocity interaction with a concrete barrier","authors":"P. Radchenko, S. Batuev, A. Radchenko","doi":"10.1063/5.0034218","DOIUrl":"https://doi.org/10.1063/5.0034218","url":null,"abstract":"Interaction of elongated steel cylindrical strikers with concrete barriers at a velocity of 1000 m/s is studied numerically. The problem is solved by the finite element method, in a three-dimensional formulation within the framework of the phenomenological approach to the mechanics of a deformable solid using the author's software package EFES. To describe the processes of deformation, fracture and cracking in concrete the JH-2 model was used, which makes it possible to take into account the large deformations, high strain rates and high pressures that occur in the material. The used calculation algorithm takes into account the formation of discontinuities in the material and the fragmentation of bodies with the formation of new free surfaces. The influence of the nutation angle on the fracture of the barrier and the behavior of the striker during penetration was investigated. It is shown that the presence of a nutation angle during the interaction of elongated strikers has a significant effect on the development of fracture in the target.","PeriodicalId":408630,"journal":{"name":"PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON PHYSICAL MESOMECHANICS. MATERIALS WITH MULTILEVEL HIERARCHICAL STRUCTURE AND INTELLIGENT MANUFACTURING TECHNOLOGY","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132558261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Distinction of polished and unpolished sp2 carbons via principal component analysis 通过主成分分析来区分抛光和未抛光的sp2碳

PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON PHYSICAL MESOMECHANICS. MATERIALS WITH MULTILEVEL HIERARCHICAL STRUCTURE AND INTELLIGENT MANUFACTURING TECHNOLOGY Pub Date : 2020-12-14 DOI: 10.17223/9785946219242/315

O. Maslova, M. Ammar, S. Barannikova

{"title":"Distinction of polished and unpolished sp2 carbons via principal component analysis","authors":"O. Maslova, M. Ammar, S. Barannikova","doi":"10.17223/9785946219242/315","DOIUrl":"https://doi.org/10.17223/9785946219242/315","url":null,"abstract":"Mechanical polishing of graphite-like sp2 carbon structures is known to lead to the unpredictable increase in the defect-conducted (D) band (∼1350 cm−1) in their Raman spectra, whereas the G band (∼1580 cm−1) interpreted as an intrinsic characteristic of these materials remains visually unchanged. In this respect, special attention is paid to the characterization of polished carbon materials via Raman mapping that enables one to scan the area of interest within the sample surface and to evaluate the effect of polishing at the structural level. Data collected during the mapping can be processed via a simple analysis of spectroscopic parameters (intensity, width, and peak position) or through the multivariate statistical methods (principal component analysis). According to various studies, the latter has been widely used in the last years due to its simplicity and the possibility to substantially reduce the processing time, which is especially convenient when working with huge-volume data composed of thousands of spectra. In this work the principal component analysis (PCA) was applied to distinguish polished and unpolished sp2 carbons by the example of anthracene-based cokes (a variety of graphitizable sp2 carbon). For this purpose the Raman spectra were acquired on the samples pyrolized at temperatures of 1600, 2000 and 2900°C and exposed to polishing. According to the preliminary results, the difference between polished and unpolished specimens becomes more obvious as the temperature of pyrolysis increases (above 2000°C), leading to a pronounced distinction at a temperature of 2900°C. Thus, the method allows one to distinguish the specimens whose structural differences are due to pyrolysis or polishing.","PeriodicalId":408630,"journal":{"name":"PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON PHYSICAL MESOMECHANICS. MATERIALS WITH MULTILEVEL HIERARCHICAL STRUCTURE AND INTELLIGENT MANUFACTURING TECHNOLOGY","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133455911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mathematical modeling of deformation and fracture of zirconium carbide porous samples subjected to uniaxial compression 单轴压缩下碳化锆多孔试样变形与断裂的数学建模

PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON PHYSICAL MESOMECHANICS. MATERIALS WITH MULTILEVEL HIERARCHICAL STRUCTURE AND INTELLIGENT MANUFACTURING TECHNOLOGY Pub Date : 2020-12-14 DOI: 10.17223/9785946219242/137

A. Pazhin, Yu. A. Mirovoi

{"title":"Mathematical modeling of deformation and fracture of zirconium carbide porous samples subjected to uniaxial compression","authors":"A. Pazhin, Yu. A. Mirovoi","doi":"10.17223/9785946219242/137","DOIUrl":"https://doi.org/10.17223/9785946219242/137","url":null,"abstract":"In this work, deformation and fracture processes of zirconium carbide porous ceramics are addressed both experimentally and numerically. Zirconium carbide is widely used as a part of metal-based composite materials. The material in question, being prepared by the sintering, possesses a residual porosity, which is generally undesirable. The main goal of this work is to determine a constitutive response of porous matrix calibrated against the experimental study. Based on the structural studies, the residual porosity makes somewhat 7–8%, which is rather high. Designed computer models of the representative volume element take an explicit account of porosity with an assumption of spherical pores, which are distributed randomly within the computational domain. The numerical modelling of samples loading is carried out in the framework of three-dimensional finite difference continuum damage mechanics approach. Calibration of several model parameters is made using theoretical values reported in the literature. The results of modelling satisfactorily meet an available experimental data in terms of uniaxial compressive strength, the worse agreement is found between elastic properties.","PeriodicalId":408630,"journal":{"name":"PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON PHYSICAL MESOMECHANICS. MATERIALS WITH MULTILEVEL HIERARCHICAL STRUCTURE AND INTELLIGENT MANUFACTURING TECHNOLOGY","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125906707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Elastic strains on the interfaces with the finite and infinitesimal dimensions 有限和无穷小尺寸界面上的弹性应变

PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON PHYSICAL MESOMECHANICS. MATERIALS WITH MULTILEVEL HIERARCHICAL STRUCTURE AND INTELLIGENT MANUFACTURING TECHNOLOGY Pub Date : 2020-12-14 DOI: 10.1063/5.0034152

N. Chertova

引用次数: 0