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Online since: September 2018
Authors: Arshad Bashir, Fahd Jamshaid, Muhammad Adrees, Muhammad Yasir, Sajid Rasheed Ahmad, Adnan Ahmad, Faiza Hassan, Waheed Gull Khan, Sadia Sagar Iqbal
Tuning of Thermo-Mechanical Performance: Modified Multiwalled Carbon Nanotubes Reinforced SBR/NBR/SR Nanocomposites
SADIA Sagar Iqbal1,a,*, MUHAMMAD Adrees1b, ADNAN Ahmad1c,
FAIZA Hassan2d, MUHAMMAD Yasir3e, ARSHAD Bashir4f,
SAJID Rashid Ahmad5g, FAHAD Jamshad1h, WAHEED Gul Khan4i
1Department of Polymer Engineering & Technology, CEET,
University of the Punjab, Lahore, Pakistan
2Department of Chemistry, University of the Lahore, Pakistan
3Institute of Space Technology, Islamabad, Pakistan
4Institute of Industrial Control System, P.O.
Entanglement and agglomeration are the key problems in the way of nanotubes dispersion within the virgin polymer matrices.
Experimental Materials.
Thermal oxidation of the polymer composites is an important parameter to validate the operating temperature range of the materials.
· Microscopic study reveals the proper dispersion of F-MWCNTs in the host elastomeric matrices that has key importance to improve the thermo-mechanical characteristics of the prepared nanocomposites.
Entanglement and agglomeration are the key problems in the way of nanotubes dispersion within the virgin polymer matrices.
Experimental Materials.
Thermal oxidation of the polymer composites is an important parameter to validate the operating temperature range of the materials.
· Microscopic study reveals the proper dispersion of F-MWCNTs in the host elastomeric matrices that has key importance to improve the thermo-mechanical characteristics of the prepared nanocomposites.
Online since: May 2011
Authors: Long Chen Duan, Hao Shi, Song Cheng Tan, Song E Tan
Study on Critical Drilling Parameters for Auger Drilling
Songcheng Tan 1,2,a, Longchen Duan 1,b,*, Songe Tan 1,c and Hao Shi 1,d
1Faculty of Engineering, China University of Geosciences (Wuhan)
2Engineering Research Center of Rock-Soil Drilling & Excavation and Protection
awstansongcheng@163.com, bduanlongchen@163.com, cfeitian008@126.com,
dqiuhuaxn@163.com
Key words: Auger drilling; Critical model of drilling parameter; Trajectory of chip transportation
Abstract: Auger drilling is widely employed in pile foundation engineering and sampling test for geological sciences, and is even considered as one of the idealest methods for space sampling.
Introduction Auger drilling is widely used in pile foundation engineering, geological sampling for sand soil, and even regarded as one of the best drilling approaches for space sampling because of its continuity of transportation of soil as well as the high efficiency of construction etc.
The experiments done by Kenny indicates that drill torque is increased with the increase of the drilling depth, the density of drilling material and the feeding rate [1].
Pile Foundation engineering Auger drill in pile foundation engineering is mainly applied to miscellaneous fill, clay layer, siltyclay, siltseam, sand layer, and gravel (particle sizes are less than 150mm, gravel content is 30% to 40%).
Introduction Auger drilling is widely used in pile foundation engineering, geological sampling for sand soil, and even regarded as one of the best drilling approaches for space sampling because of its continuity of transportation of soil as well as the high efficiency of construction etc.
The experiments done by Kenny indicates that drill torque is increased with the increase of the drilling depth, the density of drilling material and the feeding rate [1].
Pile Foundation engineering Auger drill in pile foundation engineering is mainly applied to miscellaneous fill, clay layer, siltyclay, siltseam, sand layer, and gravel (particle sizes are less than 150mm, gravel content is 30% to 40%).
Online since: July 2017
Authors: Francesca Ceroni, Marisa Pecce, Giuseppe Maddaloni
The mechanical properties of the materials are listed in Table 2 with refer to the average values obtained by experimental tests.
Mechanical properties of materials for pull-out tests of series 1 and 2.
Department of Civil Engineering, Technical University of Denmark, Rapport BYG DTU No.
Experimental behavior of masonry wall-to-timber elements connections strengthened with injection anchors, Engineering Structures, 81: 98-109
On-site pull-out tests of steel anchor spikes applied to brickwork masonry, Key Engineering Materials, 624: 266-274
Mechanical properties of materials for pull-out tests of series 1 and 2.
Department of Civil Engineering, Technical University of Denmark, Rapport BYG DTU No.
Experimental behavior of masonry wall-to-timber elements connections strengthened with injection anchors, Engineering Structures, 81: 98-109
On-site pull-out tests of steel anchor spikes applied to brickwork masonry, Key Engineering Materials, 624: 266-274
Online since: July 2022
Authors: Maiada El-Dawayati, Zeinab E. Zayed, Hesham S. Ghazzawy, Sherif F. El-Sharabasy
In (IOP conference series: materials science and engineering, 368(1) 2018 p. 012009).
Renewable and Sustainable Energy Reviews, Materials Sci.
Materials Research Proceedings, 11. (2019)
In Cell and Tissue Reaction Engineering Springer, Berlin, Heidelberg 2009 pp. 315–356
Appl Biochem Biotechnol, part A: enzyme engineering and biotechnology 172(6) (2014) 2894–2906
Renewable and Sustainable Energy Reviews, Materials Sci.
Materials Research Proceedings, 11. (2019)
In Cell and Tissue Reaction Engineering Springer, Berlin, Heidelberg 2009 pp. 315–356
Appl Biochem Biotechnol, part A: enzyme engineering and biotechnology 172(6) (2014) 2894–2906
Online since: June 2016
Authors: Buta Singh Sidhu, Sukhpal Singh Chatha, Hazoor S. Sidhu
Failure of heat exchanger tubes in coal-fired boilers has become a key material issue in the design and operation of thermal power plants and is recognized as being one of the main causes of downtime in these installations [6-8].
Therefore, the development of wear and high-temperature oxidation protection systems for industrial boilers is a very important topic from both engineering and economic perspective [6].
This technique provides higher kinetic energy of the particulates and lower melting coating materials that enable particle-flattening in the plastic state [14].
Materials The substrate material selected for the study was T91boiler tube steel.
Bennet, The Interaction of Surface Engineering and High Temperature Corrosion Protection, Mater.
Therefore, the development of wear and high-temperature oxidation protection systems for industrial boilers is a very important topic from both engineering and economic perspective [6].
This technique provides higher kinetic energy of the particulates and lower melting coating materials that enable particle-flattening in the plastic state [14].
Materials The substrate material selected for the study was T91boiler tube steel.
Bennet, The Interaction of Surface Engineering and High Temperature Corrosion Protection, Mater.
Online since: April 2024
Authors: Oualid Limam, Lassaad Ajam, Armia Ghrairi
Stabilized waste can be used as a material, provided it has the necessary engineering properties and leaches toxic pollutants to an acceptable level [8-10].
The relationship between mean compressive strength and Tensile strength 3.4 Density Raw materials, combustion temperature and manufacturing process are key parameters on which the bulk density of normal clay bricks depends.
Zhang, Production of bricks from waste materials – A review, Construction and Building Materials, vol. 47, (2013) 643-655. [16] J.
Weng, Use of sewage sludge ash as brick material, Journal of environmental engineering, vol. 8, n° 11, (2001) 922-927
Shahzada, Utilization of marble wastes in clay bricks: a step towards lightweight energy efficient construction materials, Civil Engineering Journal, vol. 7, n° 19, (2021) 1488-1500.
The relationship between mean compressive strength and Tensile strength 3.4 Density Raw materials, combustion temperature and manufacturing process are key parameters on which the bulk density of normal clay bricks depends.
Zhang, Production of bricks from waste materials – A review, Construction and Building Materials, vol. 47, (2013) 643-655. [16] J.
Weng, Use of sewage sludge ash as brick material, Journal of environmental engineering, vol. 8, n° 11, (2001) 922-927
Shahzada, Utilization of marble wastes in clay bricks: a step towards lightweight energy efficient construction materials, Civil Engineering Journal, vol. 7, n° 19, (2021) 1488-1500.
Online since: October 2007
Authors: José Manuel Torralba, M.L. Delgado, Elisa Maria Ruiz-Navas
Characteristics of the raw materials.
The requirement of lighter materials with high specific strength and stiffness has led to the development of a wide range of MMCs as an alternative to the conventional engineering alloys and the research on the ceramic reinforced MMCs has increased significantly.
It can be seen how elevated TiCN quantities avoid Cu diffusion, which would affect to materials densification.
As solution, liquid phases are employed to aid in materials consolidation
Sandström, Key Eng.
The requirement of lighter materials with high specific strength and stiffness has led to the development of a wide range of MMCs as an alternative to the conventional engineering alloys and the research on the ceramic reinforced MMCs has increased significantly.
It can be seen how elevated TiCN quantities avoid Cu diffusion, which would affect to materials densification.
As solution, liquid phases are employed to aid in materials consolidation
Sandström, Key Eng.
Online since: December 2010
Authors: Yan Li, Da Gang Lv, Hong Fei Sheng
Fatigue Reliability Analysis of the Stay Cables of Cable-stayed Bridge
under Combined Loads of Stochastic Traffic and Wind
Yan Li1,a, Dagang Lv
2,b, Hongfei Sheng
1,c
1
School of Transportation Science and Engineering, Harbin Institute of Technology,
Harbin, China;
2
School of Civil Engineering, Harbin Institute of Technology, Harbin, China;
a
liyan_2007@126.com, b
ludagang@hit.edu.cn, c
shenghongfei2005@163.com
Key words::::Cable-stayed bridge; Stay cables; Wind load; Random vehicle load; Fatigue
reliability
Abstract: The existent studies on cable stays fatigue for the serviced cable-stayed bridge generally
only considered traffic or wind load action respectively.
Fatigue reliability analysis model of the stay cable 2.1 Fatigue resistance of the stay cable Because of the influencing factors existing, such as component materials, production processes and methods, surface conditions, external environment and etc, fatigue resistance of stay cables has apparent randomness and includes internal and external two types.
It reflects the relationship between the stress amplitude and number of stress cycles, and generally can be obtained by constant amplitude cyclic loading test for the structure or component materials.
Structure Engineering.
Engineering Structures
Fatigue reliability analysis model of the stay cable 2.1 Fatigue resistance of the stay cable Because of the influencing factors existing, such as component materials, production processes and methods, surface conditions, external environment and etc, fatigue resistance of stay cables has apparent randomness and includes internal and external two types.
It reflects the relationship between the stress amplitude and number of stress cycles, and generally can be obtained by constant amplitude cyclic loading test for the structure or component materials.
Structure Engineering.
Engineering Structures
Online since: September 2020
Authors: Alexander Vasilevich Latyshev, Anatoliy Vasilevich Dvurechenskii, Aleksander Leonidovich Aseev
The perspectives of nanostructured materials for the creation of a new generation of universal memory and neuromorphic computing elements are under lively discussion.
These floating gate transistors are key elements that ensure creation of a flash nonvolatile memory.
Many new prospective materials are intensively investigated in the strive to create the memristors and elements of a universal electronic memory: · Thin films structures Si-TiN-ZrOx-TiN with non-stoichiometric ZrOx; · Thin layer of amorphous SiO2 и TaOx; · Perovskite layers La1-xSrxMnO3, ReNiO3, YBa2Cu3O7; · The layered structure Metal-Electride-Dielectric-Metal, where Electride is (Ca24Al28O64)4+:4e- [14, 15]; 2D Ca2N [16] and other compounds where an electron is the anion.
Single-photon emitters (SPEs) and emitters of entangled photon pairs (EEPPs) are the key elements of modern developed quantum optical information systems and quantum cryptography systems.
Further outlooks are expected in controlled alteration of the energy band structure (band engineering) of nanomaterials, in new quantum and spin phenomena for the creation of novel photodetectors, single-photon emitters, highly sensitive sensors, memory and radio-photonics elements and quantum devices.
These floating gate transistors are key elements that ensure creation of a flash nonvolatile memory.
Many new prospective materials are intensively investigated in the strive to create the memristors and elements of a universal electronic memory: · Thin films structures Si-TiN-ZrOx-TiN with non-stoichiometric ZrOx; · Thin layer of amorphous SiO2 и TaOx; · Perovskite layers La1-xSrxMnO3, ReNiO3, YBa2Cu3O7; · The layered structure Metal-Electride-Dielectric-Metal, where Electride is (Ca24Al28O64)4+:4e- [14, 15]; 2D Ca2N [16] and other compounds where an electron is the anion.
Single-photon emitters (SPEs) and emitters of entangled photon pairs (EEPPs) are the key elements of modern developed quantum optical information systems and quantum cryptography systems.
Further outlooks are expected in controlled alteration of the energy band structure (band engineering) of nanomaterials, in new quantum and spin phenomena for the creation of novel photodetectors, single-photon emitters, highly sensitive sensors, memory and radio-photonics elements and quantum devices.
Online since: June 2010
Authors: Jin Yu Zhou, Kui Zhou Sun, Xiu Lian Li
Introduction
There is a type of structural system consisting of identical components with the same material, same
sizes, and same functions, which is commonly used in engineering equipments and can be defined
as the symmetric structure system.
Compared with Gauss copulas, dependence functions shown in Fig.3 possess tail-asymmetric feature, which can fit for statistically modeling for most of engineering systems.
Chinese Journal of Mechanical Engineering, 2008, 44(5): 45-50.
Journal of Engineering Mechanics, 1986, 112(1):85-104
Journal of Hydrologic Engineering, 2007, 12(4):347-368
Compared with Gauss copulas, dependence functions shown in Fig.3 possess tail-asymmetric feature, which can fit for statistically modeling for most of engineering systems.
Chinese Journal of Mechanical Engineering, 2008, 44(5): 45-50.
Journal of Engineering Mechanics, 1986, 112(1):85-104
Journal of Hydrologic Engineering, 2007, 12(4):347-368