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Online since: February 2012
Authors: Wolfgang Tillmann, Jan Herper, Dirk Biermann, A. Erman Tekkaya, Eugen Krebs, Peter Sieczkarek, Lukas Kwiatkowski
Micromilling was chosen for the investigations in this paper because this process is suitable for the very accurate production of complex structures on various surfaces of different materials, but this requires a detailed knowledge of the process.
Hence, the front tool-cog shapes a full material and the rear tool-cog performs a final calibration step.
Schunck, Machines and Tools for Sheet-Bulk Metal Forming, Key Engineering Materials, 473 (2011) 91-98.
De Chiffre, Micromilling of hardened tool steel for mould making applications, Journal of Materials Processing Technology, 167 (2005) 201-207
Tillmann et al., Materials Science Forum, 539-543 (2007) 2, 1194-1199
Hence, the front tool-cog shapes a full material and the rear tool-cog performs a final calibration step.
Schunck, Machines and Tools for Sheet-Bulk Metal Forming, Key Engineering Materials, 473 (2011) 91-98.
De Chiffre, Micromilling of hardened tool steel for mould making applications, Journal of Materials Processing Technology, 167 (2005) 201-207
Tillmann et al., Materials Science Forum, 539-543 (2007) 2, 1194-1199
Online since: December 2011
Authors: B. Kusz, M. Gazda, P. Jasinski, B. Bochentyn, K. Gdula-Kasica, T. Lendze, W. Lewandowska-Iwaniak, A. Mielewczyk-Gryn, S. Molin
Therefore, in both groups of SOFCs, alternative cathode materials are sought.
Perovskite anode materials The properties of an ideal SOFC anode material are very much similar to these required for the cathode material.
Properties of perovskite materials allow applying them as components of SOFCs.
Jacobson Materials for Solid Oxide Fuel Cells, Chem.
[30] W.Z.Zhu, S.C.Deevi, Materials Science and Engineering A362 (2003) 228–239
Perovskite anode materials The properties of an ideal SOFC anode material are very much similar to these required for the cathode material.
Properties of perovskite materials allow applying them as components of SOFCs.
Jacobson Materials for Solid Oxide Fuel Cells, Chem.
[30] W.Z.Zhu, S.C.Deevi, Materials Science and Engineering A362 (2003) 228–239
Online since: August 2014
Authors: Marian Šofranko, Marek Laciak
For the dynamic crushers, the material is crushed by a strike (hammer crushers) or the material itself is projected at high speed on the impact surface (impact crushers).
Material flow – shows the flow of material in designed technological line.
Possibility of extending the application is the implementation of a mathematical model that calculates the material flow of the treated material.
ACKNOWLEDGMENT This work was supported by the Slovak Grant Agency for Science under grants VEGA No. 1/1206/12, No. 1/0729/12, No. 1/0295/14.
Virgala, Modeling of Dynamic Systems in Simulation Environment MATLABSimulink – SimMechanics, American Journal of Mechanical Engineering.
Material flow – shows the flow of material in designed technological line.
Possibility of extending the application is the implementation of a mathematical model that calculates the material flow of the treated material.
ACKNOWLEDGMENT This work was supported by the Slovak Grant Agency for Science under grants VEGA No. 1/1206/12, No. 1/0729/12, No. 1/0295/14.
Virgala, Modeling of Dynamic Systems in Simulation Environment MATLABSimulink – SimMechanics, American Journal of Mechanical Engineering.
Online since: September 2019
Authors: Vasily Y. Belyankov, Aleksandr E. Goldshtein
One of the most important tasks of testing, which is effectively resolved with use of SECP, is thickness measuring of a pipe wall made from electrically conductive nonmagnetic materials, as well as of dielectric coatings of these pipes or the air gap between SECP and the surface of a pipe [1, 4, 5].
The FEM advantages in solving real problems are the versatility of usage, arbitrary form of the treated area, the absence of necessity for the object approximation to standard geometric shapes, the ability to solve unsymmetric problems based on irregularity of materials and media parameters [2, 9, 10].
A widespread drill pipe from nonmagnetic material with a nominal outside diameter D = 147 mm was taken, specific conductance σ varied in the range of (10...25) MS/m, wall thickness T in the range of (5...15) mm, the distance between the SECP measuring coil and the pipe surface in the range of (3...15) mm.
Technical and economical opportunities (Iceland: The school for renewable energy science) 126 [7] M.
Lichuan, Coil impedance calculation of an eddy current sensor by the finite element method, Russian Journal of Nondestructive Testing 44 (2008) 296
The FEM advantages in solving real problems are the versatility of usage, arbitrary form of the treated area, the absence of necessity for the object approximation to standard geometric shapes, the ability to solve unsymmetric problems based on irregularity of materials and media parameters [2, 9, 10].
A widespread drill pipe from nonmagnetic material with a nominal outside diameter D = 147 mm was taken, specific conductance σ varied in the range of (10...25) MS/m, wall thickness T in the range of (5...15) mm, the distance between the SECP measuring coil and the pipe surface in the range of (3...15) mm.
Technical and economical opportunities (Iceland: The school for renewable energy science) 126 [7] M.
Lichuan, Coil impedance calculation of an eddy current sensor by the finite element method, Russian Journal of Nondestructive Testing 44 (2008) 296
Online since: October 2014
Authors: Petru Dușa, Radu Baciu Lupașcu
On another hand ultrasonic technology has many wave modes to investigate materials including bulk wave (longitudinal and shear wave), surface wave (Rayleigh) every mode offering unique parameters for extracting information.
On another hand ultrasonic technology has many wave modes to investigate materials including bulk wave (longitudinal and shear wave), surface wave (Rayleigh) every mode offering unique parameters for extracting information.
Bilge, Investigation of total welding residual stress by using ultrasonic wave velocity variations, Gazi University Journal of Science.
Javadi, Ultrasonic inspection of a welded stainless steel pipe to evaluate residual stresses through thickness, Materials & Design, 2013, pp. 591-601
[8] E 494-95 Standard Practice for Measuring Ultrasonic Velocity in Materials.
On another hand ultrasonic technology has many wave modes to investigate materials including bulk wave (longitudinal and shear wave), surface wave (Rayleigh) every mode offering unique parameters for extracting information.
Bilge, Investigation of total welding residual stress by using ultrasonic wave velocity variations, Gazi University Journal of Science.
Javadi, Ultrasonic inspection of a welded stainless steel pipe to evaluate residual stresses through thickness, Materials & Design, 2013, pp. 591-601
[8] E 494-95 Standard Practice for Measuring Ultrasonic Velocity in Materials.
Online since: December 2012
Authors: Jin Liang Gu, Ke Jie Qiang, Bao Ming Li, Hong E Luo
Abstract.Strain measurement in electromagnetic rail launching processes is of significant importance to studies on rail life, wrap material selection, and initial armature disturbance.
Rail strain also influences the rail life and wrap material life, so it is difficult to ensure the consistency of muzzle velocity under the same muzzle voltage environment.
[2] Jinliang Gu,Honge Luo,Jianxin Li,Yan Xia,Baoming Li:Applications of Bragg Grating in Strain Measurement of Electromagnetic Railgun,Advanced Materials Research Vols. 317-319 (2011) pp 1007-1011
[4] Shanghui Xiao,Yi Jlang:Detection of delamination in composites based on Mach-Zehnder interferometer,Journal of Transducer Technology,2005,24(10):68-70
[8] Zhao Xinqiu, Han Wei:Research on differential optical fiber sense system in measurement of the rolling force, Chinese Journal of Scientific Instrument, 2006,S2.
Rail strain also influences the rail life and wrap material life, so it is difficult to ensure the consistency of muzzle velocity under the same muzzle voltage environment.
[2] Jinliang Gu,Honge Luo,Jianxin Li,Yan Xia,Baoming Li:Applications of Bragg Grating in Strain Measurement of Electromagnetic Railgun,Advanced Materials Research Vols. 317-319 (2011) pp 1007-1011
[4] Shanghui Xiao,Yi Jlang:Detection of delamination in composites based on Mach-Zehnder interferometer,Journal of Transducer Technology,2005,24(10):68-70
[8] Zhao Xinqiu, Han Wei:Research on differential optical fiber sense system in measurement of the rolling force, Chinese Journal of Scientific Instrument, 2006,S2.
Online since: November 2012
Authors: Ning Hui He, Guang Rong Bian, Hong Sheng Li
Users can dynamically monitor the location and whereabouts of material, operating machinery and vehicles in warehouse by intelligent terminal.
There is a fixed reader placed on each shelf of the warehouse for monitoring each tray on the shelf which can read real-time inventory information in the tray on the label with updating the database management system to confirm the material storage.
References [1] Dong Yaohua,The Internet of Things Technology and Applications, Shanghai: Shanghai Science and Technology Press, 2011 , pp.174-264
[2] Wu Dongcheng,Principle and Application of Intelligent Wireless Sensor Network, Beijing:Science Press, 2011.12, pp.203-205
[7] Pablo GARCÍA ANSOLA, Andrés GARCÍA, Javier de las MORENAS, Javier GARCÍA ESCRIBANO , Francisco Javier OTAMENDI, ZigID: Improving visibility in industrial environments by combining WSN and RFID, Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2011, pp.849-859.
There is a fixed reader placed on each shelf of the warehouse for monitoring each tray on the shelf which can read real-time inventory information in the tray on the label with updating the database management system to confirm the material storage.
References [1] Dong Yaohua,The Internet of Things Technology and Applications, Shanghai: Shanghai Science and Technology Press, 2011 , pp.174-264
[2] Wu Dongcheng,Principle and Application of Intelligent Wireless Sensor Network, Beijing:Science Press, 2011.12, pp.203-205
[7] Pablo GARCÍA ANSOLA, Andrés GARCÍA, Javier de las MORENAS, Javier GARCÍA ESCRIBANO , Francisco Javier OTAMENDI, ZigID: Improving visibility in industrial environments by combining WSN and RFID, Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2011, pp.849-859.
Online since: June 2010
Authors: Li Bo Zhou, Jun Shimizu, Takeyuki Yamamoto, Han Huang
This study aims to clarify the friction and wear phenomena, which are of great importance
in abrasive machining with atomic-scale material removal, such as polishing of magnetic disk
substrates and CMP of semiconductor substrates.
It is thus important to understand the material removal, the friction and the wear mechanism at atomic-scale with extremely small abrasive grains, in order to reach the surface quality requirement for such ultra-precise devices.
Robbins: Science, Vol. 284 (1999), p. 1650 [3] L.
Eda: Tribotest Journal, Vol. 9 (2002), p. 101 [9] J.
Manufacturing Science & Technol.
It is thus important to understand the material removal, the friction and the wear mechanism at atomic-scale with extremely small abrasive grains, in order to reach the surface quality requirement for such ultra-precise devices.
Robbins: Science, Vol. 284 (1999), p. 1650 [3] L.
Eda: Tribotest Journal, Vol. 9 (2002), p. 101 [9] J.
Manufacturing Science & Technol.
Online since: September 2013
Authors: Qi Shen Wang, Nan Nan Zhang, Xue Gong, Pen Yao Wei, Zhong Li Zhang
Experimental
The substrate material used in this study is type AISI 304N stainless steel (Fe-18Cr-9Ni-0.16N nominally).
TAFALOY 45CT( Ni-45Cr-1Ti nominally) and pure aluminum (99.9 wt%) were employed for the arc spraying materials which are in the shape of f2-mm wire.
Journal of Iron and Steel Reseach, Vol. 19 (2012), p74
International Symposium of Research Students on Material Science and Engineering.
Journal of Alloys and Compounds.
TAFALOY 45CT( Ni-45Cr-1Ti nominally) and pure aluminum (99.9 wt%) were employed for the arc spraying materials which are in the shape of f2-mm wire.
Journal of Iron and Steel Reseach, Vol. 19 (2012), p74
International Symposium of Research Students on Material Science and Engineering.
Journal of Alloys and Compounds.
Online since: August 2020
Authors: Worranan Rangsimawong, Tanasait Ngawhirunpat, Praneet Opanasopit, Phuvamin Suriyaamporn
Normally, microneedles are 25–1000 μm in height and fabricated from many materials (e.g. steel, glass, silicon or polymer) [1].
Materials and Methods Materials.
Acknowledgement The authors would like to thank Faculty of Pharmacy, Silpakorn University, Nakhon Pathom, Thailand and Faculty of Pharmaceutical sciences, Ubon Ratchathani University, Ubon Ratchathani, Thailand for facilities and financial supports.
Nakagawa, Performance and characteristics evaluation of a sodium hyaluronate-based microneedle patch for a transcutaneous drug delivery system, International Journal of Pharmaceutics. 441, 1-2 (2013) 570-579
Woolfson, et al., A proposed model membrane and test method for microneedle insertion studies, International Journal of Pharmaceutics. 472, 1-2 (2014) 65-73
Materials and Methods Materials.
Acknowledgement The authors would like to thank Faculty of Pharmacy, Silpakorn University, Nakhon Pathom, Thailand and Faculty of Pharmaceutical sciences, Ubon Ratchathani University, Ubon Ratchathani, Thailand for facilities and financial supports.
Nakagawa, Performance and characteristics evaluation of a sodium hyaluronate-based microneedle patch for a transcutaneous drug delivery system, International Journal of Pharmaceutics. 441, 1-2 (2013) 570-579
Woolfson, et al., A proposed model membrane and test method for microneedle insertion studies, International Journal of Pharmaceutics. 472, 1-2 (2014) 65-73