Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: May 2015
Authors: Yuan Yuan Liu, Yun Min Ma, Qing Xi Hu, Hai Ping Chen
This paper presents combining the electrospinning with 3D printing to prepare biological scaffold, making the scaffold have simultaneously macro, micro-structure characteristics, and effectively overcame the limitation of large aperture and small porosity existed in single 3D printing technology.
1 Materials and methods
1.1 Materials
Type B gelatin (American Biotechnology Co., Ltd) and Sodium alginate, Calcium chloride solution (cross-linking agent), polycaprolactone (PCL, average molecular weight is 73000).
The scaffold materials were removed into a small centrifuge, added 1ml of PBS solution, 1ul of Stainning A and 1ul of Stainning B and observed the liability of ADSCs with inverted fluorescence microscope. 2.3.3 Cell proliferation assay Cell proliferation was measured using MTS test.
According to the theory of interaction between cells and materials, wherein the adhesion of cells and material is a base [4], the suitable adhesion must occur before the migration, differentiation and proliferation [5].
Acknowledgements This study is partly supported by National Natural Science Foundation of China (No.51375292, NO.51475281), National Youth Foundation of China (No.51105239).
Chinese Journal of orthopaedic Trauma.12 (2010):471 -475.
The scaffold materials were removed into a small centrifuge, added 1ml of PBS solution, 1ul of Stainning A and 1ul of Stainning B and observed the liability of ADSCs with inverted fluorescence microscope. 2.3.3 Cell proliferation assay Cell proliferation was measured using MTS test.
According to the theory of interaction between cells and materials, wherein the adhesion of cells and material is a base [4], the suitable adhesion must occur before the migration, differentiation and proliferation [5].
Acknowledgements This study is partly supported by National Natural Science Foundation of China (No.51375292, NO.51475281), National Youth Foundation of China (No.51105239).
Chinese Journal of orthopaedic Trauma.12 (2010):471 -475.
Online since: March 2006
Authors: T. Tang, Zhuo Zhuang, H.R. Fang, X.M. Zhang, Wei Yang, Ying Zhao
Based on the
test data, a hyperelastic stress-strain relation for the muscle material has been developed.
The integrated study is divided into three parts: building model, material constitution and numerical simulation.
The mechanical function of the heart depends crucially on its material properties.
HUNTER, Computational Mechanics of the Heart (From Tissue Structure to Ventricular Function), Journal of Elasticity 61: 113-141, 2000
Yang), 1998 [9] Feng Yuanzhen, "Biomechanics", Science Publishing Company, Inc, 1983
The integrated study is divided into three parts: building model, material constitution and numerical simulation.
The mechanical function of the heart depends crucially on its material properties.
HUNTER, Computational Mechanics of the Heart (From Tissue Structure to Ventricular Function), Journal of Elasticity 61: 113-141, 2000
Yang), 1998 [9] Feng Yuanzhen, "Biomechanics", Science Publishing Company, Inc, 1983
Online since: July 2013
Authors: Jing Xian Liu, Xiao Pei Liu, Si Si Bian, De Qiang Chang, Ning Mao, Xi Sun
Air purification materials, as the core of the filtering equipment, of which research and development has been widespread concern.
It is expected that filter materials with high efficiency and low resistance, can be applicable to various environment.
Most of the materials are used for air purification for one-time use.
Medium efficiency filtration medias without protecting materials is just through heat treatment and the thickness is small.
Journal of Allergy and Clinical Immunology, Volume 125, Issue 1(2010), pp 32–38
It is expected that filter materials with high efficiency and low resistance, can be applicable to various environment.
Most of the materials are used for air purification for one-time use.
Medium efficiency filtration medias without protecting materials is just through heat treatment and the thickness is small.
Journal of Allergy and Clinical Immunology, Volume 125, Issue 1(2010), pp 32–38
Online since: August 2013
Authors: Kao Zhong Zhao, Long Long Liu
Limited to the prevailing economic conditions, technical conditions and construction methods, in the course of building, farmers prefer brick, stone brick, stone, wood and other building materials as the main raw material.
The investigation content including housing structure, household information, usage, income, construction materials, damage situation and repair history, so we can determine the structure of the building.
The majority masonry materials of stone housing are rough machined flat freestone, and the wall masonry with lime mortar and clay mortar.
Dosage of Curing Agent on the Properties of Adobel Wall Material.
Journal of Shenyang Jianzhu University(Natural Science). 2010,26(3):517-521
The investigation content including housing structure, household information, usage, income, construction materials, damage situation and repair history, so we can determine the structure of the building.
The majority masonry materials of stone housing are rough machined flat freestone, and the wall masonry with lime mortar and clay mortar.
Dosage of Curing Agent on the Properties of Adobel Wall Material.
Journal of Shenyang Jianzhu University(Natural Science). 2010,26(3):517-521
Online since: July 2008
Authors: Cheng Lu, A. Kiet Tieu, Yuan Gao, Guillaume Michal
It was developed by Daw & Baskes [7,8] and
has become a powerful potential function for metallic materials.
Typically, a larger size can eliminate the local imperfections and become close to the nature of the material.
Beltz, Materials Sci. and Eng., A 387 (2004) 414-418
Spielmannova, Czechoslovak Journal of Physics, Vol. 55 (2005), No.10
Miyazaki, Computational Materials Science 31 (2004) 269-278
Typically, a larger size can eliminate the local imperfections and become close to the nature of the material.
Beltz, Materials Sci. and Eng., A 387 (2004) 414-418
Spielmannova, Czechoslovak Journal of Physics, Vol. 55 (2005), No.10
Miyazaki, Computational Materials Science 31 (2004) 269-278
Online since: January 2011
Authors: Tetsuyuki Hiroe, Kazuhito Fujiwara, Hidehiro Hata, Kiyotaka Tsutsumi, Takuya Igawa, Wataru Yamashita
Introduction
Explosive loading devices had been developed as simple experimental methods to supply impulsive loads for the study of dynamic responses of materials and structural components.
Fragment energy values (=) in the cylinder model were extensionally adopted for spheres and rings where : the density of materials, S: average circumferential width of fragments for cylinder and ring, average span of fragments for sphere, and: circumferential strain rate at estimated fracture time.
Fig. 5(b) shows that fragmentation energy values based on the model are dependent on materials, strain rates and specimen types or bi-axial ratios.
Takahashi: International Journal of Impact Engineering, Vol.35 (2008), p. 1578 [3] D.
Hightower, in: Shock-Wave and High-Strain-Rate Phenomena in Materials, edited by M.
Fragment energy values (=) in the cylinder model were extensionally adopted for spheres and rings where : the density of materials, S: average circumferential width of fragments for cylinder and ring, average span of fragments for sphere, and: circumferential strain rate at estimated fracture time.
Fig. 5(b) shows that fragmentation energy values based on the model are dependent on materials, strain rates and specimen types or bi-axial ratios.
Takahashi: International Journal of Impact Engineering, Vol.35 (2008), p. 1578 [3] D.
Hightower, in: Shock-Wave and High-Strain-Rate Phenomena in Materials, edited by M.
Online since: September 2011
Authors: Ghulam Yahya, M. Umer, Bilal Khan, Faraz Tahir, Zaffar Khan
Umer1, Bilal Khan2, Faraz Tahir3
1 Advanced Composite Research Center, NESCOM, Wah Cantt.
2 School of Chemical and Materials Engineering (SCME), National University of Sciences and Technology (NUST), H-12, Islamabad, Pakistan.
3 GIK Institute of Sciences and Technology, Toppi, Pakistan
a zaffark7@gmail.com
Keywords: Large Structures, Carbon Fiber composites, Resin Infusion Process, Vacuum Bagging.
Many lightweight materials have been used for vehicle weight reduction.
Let’s take a closer view, as to what materials were used and how did we go about using them for good results.
This provides enough adhesion to hold the materials in place.
However, when using less permeable materials or higher viscosity resins, this number may be reduced.
Many lightweight materials have been used for vehicle weight reduction.
Let’s take a closer view, as to what materials were used and how did we go about using them for good results.
This provides enough adhesion to hold the materials in place.
However, when using less permeable materials or higher viscosity resins, this number may be reduced.
Online since: November 2012
Authors: Feng Kun Wang, Hai Long Yu, Gui Fang Zhang, Jian Zhong Liu
It is regarded as an optimal method to change the present condition to try the gasification for various raw materials using current technologies.
As showed in Figure 3, the concentration distributions of different materials of COW slurry are similar with what of coal water slurry, in spite of a little difference in amount.
Except the shooting flow region and the striking region, the concentrations of all the materials are uniform in the rest regions, especially in the pipe flow region, which can provide very good condition for the reductive reaction of the coke.
Acknowledgment This work was supported by the special fund of the national priority basic research of China (Grant No.2004cb217701) and the National Natural Science Foundation of China (Grant No. 51006127).
AIAA Journal, 1964 (2):1662~1664 [4] R.
As showed in Figure 3, the concentration distributions of different materials of COW slurry are similar with what of coal water slurry, in spite of a little difference in amount.
Except the shooting flow region and the striking region, the concentrations of all the materials are uniform in the rest regions, especially in the pipe flow region, which can provide very good condition for the reductive reaction of the coke.
Acknowledgment This work was supported by the special fund of the national priority basic research of China (Grant No.2004cb217701) and the National Natural Science Foundation of China (Grant No. 51006127).
AIAA Journal, 1964 (2):1662~1664 [4] R.
Online since: July 2014
Authors: Lei Dai, Xiao Xuan Deng
The relationship between calcium hydroxide concentration in pore solution and the strength of stabilized soils
Lei DAI1, a, Xiaoxuan DENG2, b
1 Beijing Building Materials Academy of Sciences Research, Beijing, 100041, China
2Building Materials Institute China Academy of Building Research, Beijing, 100013, China
aemail: dailei@bmt-bj.com, bemail:xiaoxuandeng@foxmail.com
Keywords: Calcium hydroxide concentration; Pore solution; Strength; Stabilized soils
Abstract.
After cement is mixed with clay, cement hydration mainly produces CH, C-S-H and C-A-H, and Ca2+ provided by CH is absorbed by soil until reaching saturation point, then pozzolanic reaction happens between the remaining CH and silica and alumina dissolved from the clay lattice to form additional cementitious material (C-S-H and C-A-H)[7,8].
CH concentrations in pore solution of the stabilized soils represent significant differences for the soils are very different in chemical factors, such as CEC and pozzolanic reaction, which lead to the variation in the consuming amount of Ca2+ provided by cement hydration and the formation amount of cementitious materials, like C-S-H and C-A-H.
The Properties of Cement-Stabilized soils, Proceeding of Residential Workshop on Materials and Methods for Low Cost Road, Rail, and Reclamation Works.
Journal of Geotechnical and Geoenvironmental Engineering ASCE 130 (10), 1042–1050
After cement is mixed with clay, cement hydration mainly produces CH, C-S-H and C-A-H, and Ca2+ provided by CH is absorbed by soil until reaching saturation point, then pozzolanic reaction happens between the remaining CH and silica and alumina dissolved from the clay lattice to form additional cementitious material (C-S-H and C-A-H)[7,8].
CH concentrations in pore solution of the stabilized soils represent significant differences for the soils are very different in chemical factors, such as CEC and pozzolanic reaction, which lead to the variation in the consuming amount of Ca2+ provided by cement hydration and the formation amount of cementitious materials, like C-S-H and C-A-H.
The Properties of Cement-Stabilized soils, Proceeding of Residential Workshop on Materials and Methods for Low Cost Road, Rail, and Reclamation Works.
Journal of Geotechnical and Geoenvironmental Engineering ASCE 130 (10), 1042–1050
Online since: September 2018
Authors: Elena V. Ignatova
Materials and Method
Various methods of workspace analysis have been discussed in literature and even applied before.
Paths are spaces required for the movement of materials, people, and other resources.
The method does not take into account workspaces such as path (moving to materials, movement of machines and mechanisms).
Advances in Energy Science and Equipment Engineering II, Taylor & Francis Group, London, 2017
Sanvido Space Planning Method for Multistory Building Construction, Journal of Construction Engineering and Management. 123 (2) (1997) 171-180.
Paths are spaces required for the movement of materials, people, and other resources.
The method does not take into account workspaces such as path (moving to materials, movement of machines and mechanisms).
Advances in Energy Science and Equipment Engineering II, Taylor & Francis Group, London, 2017
Sanvido Space Planning Method for Multistory Building Construction, Journal of Construction Engineering and Management. 123 (2) (1997) 171-180.