Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: July 2011
Authors: De Qing Chu, Yun Na Dong, Zhi Ri Yu, Liang Ci Su, Li Min Wang
Preparation, Characterization and Catalytic Properties of the Different Types of Nanometer Crystal Manganese dioxide
Deqing Chu1,a, Yunna Dong1,b, Zhiri Yu1,c, Liangci su1,d, Limin wang2,e
1 Faculty of Environment and Chemical Engineering and the country emphasis lab of middle empty fibre film material and film engineering, Tianjin Polytechnic University,Tianjin,300160, China
2 Faculty of Material Science and Engineering, Tianjin Polytechnic University, Tianjin,300160, China
achu2dq@tjpu.edu.cn, bdongyunna@163.com, cyuzhiri@126.com, dliangcisu@163.com,ewanglm326@nenu.edu.cn
Keywords: nanometer manganese dioxide; catalytic degradation; methylene blue.
Manganese dioxide is an important metal oxide material which is widely applied in environment field, for example, In ozone decomposition, organic pollutants oxidation, NO and NO2 decomposability[1], MnO2 has high catalytic activity.
Nano material is one of the most revolutionary materials for its unique properties brought by its scale.
Takahashi, Journal of Molecular Catalysis A: Chemical, Vol. 238, (2005), p.78
Manganese dioxide is an important metal oxide material which is widely applied in environment field, for example, In ozone decomposition, organic pollutants oxidation, NO and NO2 decomposability[1], MnO2 has high catalytic activity.
Nano material is one of the most revolutionary materials for its unique properties brought by its scale.
Takahashi, Journal of Molecular Catalysis A: Chemical, Vol. 238, (2005), p.78
Online since: September 2012
Authors: Jun Xiu Liu, Zong Quan Deng, Hu Sun
Given the different materials of different structure parameters finally:
Hard aluminum alloy:;
Steel:.
Acknowledgements This work was financially supported by The National Science Foundation of China (No: 50935002,11172336,11002165); The Fundamental Research Funds for the Central Universities (No: CDJXS10242206); The Innovation Fund for Aeronautics and Astronautics (CAST2009).
International Journal of Robotics Research. 2012, Vol.31:P82-100
Magnetorheological Materials Theory United in Energy [J].Applied Mechanics and Materials.2012, Vol.157-158:P33-36
Acknowledgements This work was financially supported by The National Science Foundation of China (No: 50935002,11172336,11002165); The Fundamental Research Funds for the Central Universities (No: CDJXS10242206); The Innovation Fund for Aeronautics and Astronautics (CAST2009).
International Journal of Robotics Research. 2012, Vol.31:P82-100
Magnetorheological Materials Theory United in Energy [J].Applied Mechanics and Materials.2012, Vol.157-158:P33-36
Online since: March 2014
Authors: Liang Jun Wei, Song Peng, Lin Lin Wang
Introduction
The EDM is a complex process, the electrode is not in touch with work piece directly, work piece material is removed in the form of melt result from thermal effect produced by pulse discharge.
EDM plays an important role in machining materials with properties of higher hardness, strength, and brittleness because of the advanced characteristics it has, and now it is widely used in aviation, machinery, electronic instrumentation and other industries [1-2].
All experiments are carried on high-precision AgieCharmilles ROBOFORM31 EDM machine, copper with an face area of 10mm×10mm is selected as the electrode material, work piece material is aluminum alloy 2A12,, and the processing method of negative standard entry processing is utilized.
International Journal of Machine Tools & Manufacture, 2007, (47): 1214-1228
Molecular dynamics simulation of the material removal mechanism in micro-EDM [J].
EDM plays an important role in machining materials with properties of higher hardness, strength, and brittleness because of the advanced characteristics it has, and now it is widely used in aviation, machinery, electronic instrumentation and other industries [1-2].
All experiments are carried on high-precision AgieCharmilles ROBOFORM31 EDM machine, copper with an face area of 10mm×10mm is selected as the electrode material, work piece material is aluminum alloy 2A12,, and the processing method of negative standard entry processing is utilized.
International Journal of Machine Tools & Manufacture, 2007, (47): 1214-1228
Molecular dynamics simulation of the material removal mechanism in micro-EDM [J].
Online since: October 2013
Authors: Zsuzsa Balajti, József Ábel
Introduction
In manufacturing practice of worms there exist approximating solutions, however, this work is aimed at increasing the number of these processes for the purpose of manufacturing accuracy, for the advances in science and technology provide a possibility for that and simultaneously create a demand as well.
References: [1] Balajti, Zs., Dudas, I., Up To Date Method for Describing the Bearing Pattern of Spiroid Driving, Проблемы машиностроения и автоматизацииor, Engineering and Automation Problems International Journal, Moskva, ISSN 0234-6206 pp. 52-56 [2] Felho, Cs., Kundrak, J., Characterization of topography of cut surface based on theoretical roughness indexes, Key Engineering Materials, Vol. 496 (2012) pp.194-199.
[6] Ovarine Balajti, Zsuzsa, Development of the Production Geometry of Kinematic Drive Pairs, PhD dissertation (in Hungarian) p. 170, University of Miskolc, 2007 [7] Perepelica B A, Kundrak J, How to use the multiparameter mapping to describe the kinematics of metal cutting, In: Result of the scientific cooperation between the Polytechnical University of Kharkov and the University of Miskolc: Jubilee Conference, Miskolc, Magyarország, 1994.03.01-1994.03.02., Miskolc, Hungary, University of Miskolc, pp.: 95-98, (ISBN:963 661 238 2) [8] Sztankovics, I., Kundrak, J., Theoretical value of total height of profile in rotational turning, Applied Mechanics and Materials, 2013, pp. 154-161 [9] Varga, G., Kundrak, J., Effect of environmentally conscious machining on machined surface quality, 2013, Applied Mechanics and Materials, 309, pp. 35-42
References: [1] Balajti, Zs., Dudas, I., Up To Date Method for Describing the Bearing Pattern of Spiroid Driving, Проблемы машиностроения и автоматизацииor, Engineering and Automation Problems International Journal, Moskva, ISSN 0234-6206 pp. 52-56 [2] Felho, Cs., Kundrak, J., Characterization of topography of cut surface based on theoretical roughness indexes, Key Engineering Materials, Vol. 496 (2012) pp.194-199.
[6] Ovarine Balajti, Zsuzsa, Development of the Production Geometry of Kinematic Drive Pairs, PhD dissertation (in Hungarian) p. 170, University of Miskolc, 2007 [7] Perepelica B A, Kundrak J, How to use the multiparameter mapping to describe the kinematics of metal cutting, In: Result of the scientific cooperation between the Polytechnical University of Kharkov and the University of Miskolc: Jubilee Conference, Miskolc, Magyarország, 1994.03.01-1994.03.02., Miskolc, Hungary, University of Miskolc, pp.: 95-98, (ISBN:963 661 238 2) [8] Sztankovics, I., Kundrak, J., Theoretical value of total height of profile in rotational turning, Applied Mechanics and Materials, 2013, pp. 154-161 [9] Varga, G., Kundrak, J., Effect of environmentally conscious machining on machined surface quality, 2013, Applied Mechanics and Materials, 309, pp. 35-42
Online since: September 2014
Authors: Zhu Ye Huang, Qian Wu, Min Gui Wu
Zhejiang University of Science and Technology, Hangzhou,China;
2.China United Engineering Corporation, Hangzhou,China
a Zjuhhh@163.com, b 185337304@qq.com, c wmg702@126.com
Keywords: Reinforced Concrete Hollow floor, Thermal Isolation Character, structure analysis
Abstract.
Except some strong alloy the most material are nonbearing members.
The Parameters depends on the material type , the grade of the material and the shape of the strucuture.
According to the feature of hollow floor which was combined with reinforced concrete and high-intensive inner core, the material in vitical layer is not homogeneous.
The building enerty consumption covers material manufacture, situ construction and all consumption during using the building.
Except some strong alloy the most material are nonbearing members.
The Parameters depends on the material type , the grade of the material and the shape of the strucuture.
According to the feature of hollow floor which was combined with reinforced concrete and high-intensive inner core, the material in vitical layer is not homogeneous.
The building enerty consumption covers material manufacture, situ construction and all consumption during using the building.
Online since: May 2003
Authors: Hajime Ohgushi, Noriko Kotobuki, Hiroko Machida, Motohiro Hirose, E. Uchimura
Journal Citation (to be inserted by the publisher )
Copyright by Trans Tech Publications
Quantitative Monitoring of In Vitro Mineralization Process
Using Fluorescent Dyes
M.
Ohgushi Tissue Engineering Research Center (TERC), National Institute of Advanced Industrial Science and Technology (AIST), Nakoji 3-11-46, Amagasaki, Hyogo 661-0974, JAPAN motohiro-hirose@aist.go.jp Keywords: Osteoblast, Mineralization, Calcein, Xylenol orange, Tissue engineering Abstract Human osteoblastic cell line, HOS 58 cells, were cultured in a medium containing fluorescent dyes of calcein or xylenol orange.
Methods Cell cultures: Human osteoblast-like HOS 58 cells were maintained at 37˚C in Minimum Essential Medium (MEM) supplemented with 10% fetal bovine serum, 10 mM b-glycerophosphate and 0.28 mM ascorbic acid 2-phosphate in the presence of 1 µg/mL calcein or 100 µg/mL xylenol orange as fluorescent materials with affinity for Calcium.
Results and Discussion Since continuous addition of calcein and xylenol orange to HOS 58 cell culture system did not change cell proliferation rate or alkaline phosphatase activity, the fluorescent materials did not affect mineralization of the cells (data not shown).
The results demonstrate the establishment of an in situ monitoring system of mineralization quantification in cultured osteoblasts using fluorescent materials.
Ohgushi Tissue Engineering Research Center (TERC), National Institute of Advanced Industrial Science and Technology (AIST), Nakoji 3-11-46, Amagasaki, Hyogo 661-0974, JAPAN motohiro-hirose@aist.go.jp Keywords: Osteoblast, Mineralization, Calcein, Xylenol orange, Tissue engineering Abstract Human osteoblastic cell line, HOS 58 cells, were cultured in a medium containing fluorescent dyes of calcein or xylenol orange.
Methods Cell cultures: Human osteoblast-like HOS 58 cells were maintained at 37˚C in Minimum Essential Medium (MEM) supplemented with 10% fetal bovine serum, 10 mM b-glycerophosphate and 0.28 mM ascorbic acid 2-phosphate in the presence of 1 µg/mL calcein or 100 µg/mL xylenol orange as fluorescent materials with affinity for Calcium.
Results and Discussion Since continuous addition of calcein and xylenol orange to HOS 58 cell culture system did not change cell proliferation rate or alkaline phosphatase activity, the fluorescent materials did not affect mineralization of the cells (data not shown).
The results demonstrate the establishment of an in situ monitoring system of mineralization quantification in cultured osteoblasts using fluorescent materials.
Online since: July 2015
Authors: Bernd-Arno Behrens, Milan Vucetic, Anas Bouguecha, Mohammad Kazhai, Sonda Moakhar Bouguecha
To investigate an influence of the material on the fold formation two materials, 16MnCr5 (1.7131) and 100Cr6 (1.3505) were investigated.
Here, the materials 16MnCr5 (1.7131) and 100Cr6 (1.3505) were used.
Figure 4b) shows exemplary a comparison of parts forged with two different materials (16MnCr5 and 100Cr6).
It can be clearly seen, that a fold occur in the equatorial section for both materials under the same forging conditions.
Im: Process design for closed-die forging of bevel gear by finite element analysis, Journal of Materials Processing Technology, 2007 [6] Dieterle.
Here, the materials 16MnCr5 (1.7131) and 100Cr6 (1.3505) were used.
Figure 4b) shows exemplary a comparison of parts forged with two different materials (16MnCr5 and 100Cr6).
It can be clearly seen, that a fold occur in the equatorial section for both materials under the same forging conditions.
Im: Process design for closed-die forging of bevel gear by finite element analysis, Journal of Materials Processing Technology, 2007 [6] Dieterle.
Online since: January 2012
Authors: Ming Wen, Wei Li, Xiao Ming Cao
Research on the mechanical properties for medical stainless steel
Ming WEN, Wei LI and Xiaoming CAO
School of Material Science and Engineering, Hebei University of Technology,Tianjin, China
e-mail: gd-wen@gadvanize.com.cn, shmily_lw@126.com,gd-sam@gadvanize.com.cn
Keywords: Austenitic stainless steel; Grains; Crew; Torque; Torsion angle
Abstract.
In this paper, 00Cr18Ni14Mo3 mechanical properties of austenitic stainless steel screw, compared to the solution of the former and the sample microstructure after solution treatment, energy spectrum and the torque angle reverse faults, compared to solution treatment found that mechanical properties of the samples after meet the standard can be applied to practice Introduction In biomedical materials, medical applications of metal and alloy materials, the first, for several centuries.
Experimental Materials Experimental materials 00Cr18Ni14Mo3 austenitic stainless steel after cold drawing is rods, which are made to the screw after the turner.
References [1] Huanjuan Yang, and Ke Yang, Medical stainless steel development and prospects, Material Guide, pp.56-59,June 2005
[2] Yibin Ren, and KeYang, Study on new medical stainless steel, Journal of biomedical engineering, pp.1101-1103
In this paper, 00Cr18Ni14Mo3 mechanical properties of austenitic stainless steel screw, compared to the solution of the former and the sample microstructure after solution treatment, energy spectrum and the torque angle reverse faults, compared to solution treatment found that mechanical properties of the samples after meet the standard can be applied to practice Introduction In biomedical materials, medical applications of metal and alloy materials, the first, for several centuries.
Experimental Materials Experimental materials 00Cr18Ni14Mo3 austenitic stainless steel after cold drawing is rods, which are made to the screw after the turner.
References [1] Huanjuan Yang, and Ke Yang, Medical stainless steel development and prospects, Material Guide, pp.56-59,June 2005
[2] Yibin Ren, and KeYang, Study on new medical stainless steel, Journal of biomedical engineering, pp.1101-1103
Online since: August 2013
Authors: Jin Wei Yu
(3) Green material design – green materials should have good performance, higher resource utilization, no side effects on the environment of the material.
Therefore, pay attention to the compatibility of materials and environment, the development of new materials and environment-friendly green materials is an important part of the study.
To follow the reduction of product types and quantities of materials used in principle, the principle of material compatibility, so that the design of the products in the gas pollution and solid pollution, etc.
Acknowledgements This work is supported by National Spark Program,china(No.2011GA740047), Shandong Province Natural Science Foundation(No.ZR2012EML03),Shandong Province Universities Research Project (No.J12LA57), Shandong Province Science and Technology Development Program(No.2011YD16019), Shandong Province Weifang Science and Technology Development Program(No. 20121115).
Journal of Computational Information Systems, Vol. 6, No. 3, 2009. pp. 318-325
Therefore, pay attention to the compatibility of materials and environment, the development of new materials and environment-friendly green materials is an important part of the study.
To follow the reduction of product types and quantities of materials used in principle, the principle of material compatibility, so that the design of the products in the gas pollution and solid pollution, etc.
Acknowledgements This work is supported by National Spark Program,china(No.2011GA740047), Shandong Province Natural Science Foundation(No.ZR2012EML03),Shandong Province Universities Research Project (No.J12LA57), Shandong Province Science and Technology Development Program(No.2011YD16019), Shandong Province Weifang Science and Technology Development Program(No. 20121115).
Journal of Computational Information Systems, Vol. 6, No. 3, 2009. pp. 318-325
Online since: December 2010
Authors: Xiang Liu, Jiang Tao Kong
Experimental Study of Stress-Strain Curves of Lightweight Aggregate Concrete
Xiang Liua, Jiangtao Kong b
(Architecture and Civil Engineering School, Inner Mongolia University of Science and Technology, Baotou 014010, China )
a liuxiangwd@126.com, bkjtao614@163.com
Keywords: Lightweight Aggregate Concrete; Stress-Strain Curves; Mechanical Properties
Abstract.
Concrete material in axial compression is the basic physical mechanical performance of concrete material, and is the main basis for researching bearing capacity and deformation of concrete construction.
Experiment contents Experiment material Lightweight aggregate concrete Cement :42.5 ordinary portland cement Sand :natural river sand (to reduce concrete unit weight, sift out sand by 5mm square hole sieve ) Aggregate :sinter flyash ceramisite (grain composition 5—16mm) Admixture:B3-1 pumping admixture (Consisting ofwater reducer, retarder, early strength agent, air entraining agent) Common concrete Cement :42.5 ordinary portland cement Sand :natural river sand Aggregate:breakstone(grain composition 5—40mm) Admixture :B3-1 pumping admixture (Consisting of water reducer, retarder, early strength agent, air entraining agent) Mixed proportion Table 1 1m3 concrete mix proportion (kg) strength grade cement fly ash sand aggregate admixture water LC30 340 50 525 975 5.9 160 LC40 400 80 500 940 7.8 160 C30 320 50 740 1160 5.2 160 C40 370 80 717 1123 5.8 160 Experimental process To eliminate the effect of uneven vertical stress and horizontal friction restriction
But for axial compression test of concrete prism, if the experiment use universal material tester,the steady ascent of stress-strain curve is easy to measure.
Stress2Strain Curves of Nor2 mal and Lightweight Concrete in Compression ,Journal of The American Concrete Institute ,v75 ,n11 ,Nov ,1978 ,pp. 603 - 611
Concrete material in axial compression is the basic physical mechanical performance of concrete material, and is the main basis for researching bearing capacity and deformation of concrete construction.
Experiment contents Experiment material Lightweight aggregate concrete Cement :42.5 ordinary portland cement Sand :natural river sand (to reduce concrete unit weight, sift out sand by 5mm square hole sieve ) Aggregate :sinter flyash ceramisite (grain composition 5—16mm) Admixture:B3-1 pumping admixture (Consisting ofwater reducer, retarder, early strength agent, air entraining agent) Common concrete Cement :42.5 ordinary portland cement Sand :natural river sand Aggregate:breakstone(grain composition 5—40mm) Admixture :B3-1 pumping admixture (Consisting of water reducer, retarder, early strength agent, air entraining agent) Mixed proportion Table 1 1m3 concrete mix proportion (kg) strength grade cement fly ash sand aggregate admixture water LC30 340 50 525 975 5.9 160 LC40 400 80 500 940 7.8 160 C30 320 50 740 1160 5.2 160 C40 370 80 717 1123 5.8 160 Experimental process To eliminate the effect of uneven vertical stress and horizontal friction restriction
But for axial compression test of concrete prism, if the experiment use universal material tester,the steady ascent of stress-strain curve is easy to measure.
Stress2Strain Curves of Nor2 mal and Lightweight Concrete in Compression ,Journal of The American Concrete Institute ,v75 ,n11 ,Nov ,1978 ,pp. 603 - 611