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Online since: January 2016
Authors: Yorinobu Takigawa, Tokuteru Uesugi, Kenji Higashi, Hiroyuki Watanabe
Superplastic properties of AZ91 alloy.
Superplastic properties of AM60 alloy.
The difference implies that other factors besides grain rotation give rise to the difference in texture evolution during superplastic deformation and the texture evolution cannot be explained by diffusional accommodation mechanism.
We were concerned that the interphase boundary between magnesium matrix and β phase in AZ91 might affect the contribution of GBS to the total strain.
Mukai, Texture and mechanical properties of superplastically deformed magnesium alloy rod, Mater.
Superplastic properties of AM60 alloy.
The difference implies that other factors besides grain rotation give rise to the difference in texture evolution during superplastic deformation and the texture evolution cannot be explained by diffusional accommodation mechanism.
We were concerned that the interphase boundary between magnesium matrix and β phase in AZ91 might affect the contribution of GBS to the total strain.
Mukai, Texture and mechanical properties of superplastically deformed magnesium alloy rod, Mater.
Online since: July 2015
Authors: Stefan Junk, Rebecca Matt
Comparison of penetration depth and strength parameters
To determine the changes of the material properties, in particular their strength, due to the utilization of the new infiltration process, various material tests were performed.
Figure 4: Comparison of material properties using manual or automatic infiltration Comparison of process duration and cost The automatic infiltration results in a significant increase of the process duration for the overall manufacturing process.
The main purpose of this reworking is to improve the tribological properties of the tool during the forming process.
Small cracks on the surface of the female die did not affect the application of the “hybrid tool”.
Oh, A benchmark study on rapid prototyping processes and machines: Quantitative comparisons of mechanical properties, accuracy, roughness, speed, and material cost, in: Proceedings of the Institution of Mechanical Engineers, Part B (Journal of Engineering Manufacture), Birmingham, AL (USA): Professional Engineering Publishing (2008) 201-215
Figure 4: Comparison of material properties using manual or automatic infiltration Comparison of process duration and cost The automatic infiltration results in a significant increase of the process duration for the overall manufacturing process.
The main purpose of this reworking is to improve the tribological properties of the tool during the forming process.
Small cracks on the surface of the female die did not affect the application of the “hybrid tool”.
Oh, A benchmark study on rapid prototyping processes and machines: Quantitative comparisons of mechanical properties, accuracy, roughness, speed, and material cost, in: Proceedings of the Institution of Mechanical Engineers, Part B (Journal of Engineering Manufacture), Birmingham, AL (USA): Professional Engineering Publishing (2008) 201-215
Online since: May 2016
Authors: Sharifah Bee Abd Hamid, Hwei Voon Lee, You Wei Chen
It is also a significant factor affecting the reactivity of cellulose as well as determines the tensile strength and modulus of the biomaterials [5, 6].
In addition, Silvério et al. reported that crystallinity index of yielded nanocellulose had greater influence on the tensile properties of nanocomposites than the aspect ratio of nanocellulose fibers’ dimension [4].
Thermal properties of cellulosic nanomaterials extracted from various starting materials.
However, each transition metal ions exhibited different effects on the physicochemical properties of treated-nanocellulose, such as crystallinity, crystallite thickness, surface morphology, dimensional profile and thermal stability.
Liu, Liu, D., Yao, F., Wu, Q., Fabrication and properties of transparent polymethylmethacrylate/cellulose nanocrystals composites, Bioresource Technology, 101, (2010), 5685-5692
In addition, Silvério et al. reported that crystallinity index of yielded nanocellulose had greater influence on the tensile properties of nanocomposites than the aspect ratio of nanocellulose fibers’ dimension [4].
Thermal properties of cellulosic nanomaterials extracted from various starting materials.
However, each transition metal ions exhibited different effects on the physicochemical properties of treated-nanocellulose, such as crystallinity, crystallite thickness, surface morphology, dimensional profile and thermal stability.
Liu, Liu, D., Yao, F., Wu, Q., Fabrication and properties of transparent polymethylmethacrylate/cellulose nanocrystals composites, Bioresource Technology, 101, (2010), 5685-5692
Online since: May 2021
Authors: Marwan Brouche, Chawki Lahoud, Salam Eid, Christy Lahoud
These two energy factors have attracted international decision-makers and have been incorporated into energy policies and building codes [3].
Table 1: Thermophysical properties of materials used as SHS.
However, other properties should not be neglected.
However, it weakens the strength bonds and the mechanical properties of the mix and affects its durability.
This increase is caused due to several factors such as, lack of mandatory standards and codes for the Lebanese construction, the urban expansion which means the increase of new residential buildings, and the huge number of Syrian displaced.
Table 1: Thermophysical properties of materials used as SHS.
However, other properties should not be neglected.
However, it weakens the strength bonds and the mechanical properties of the mix and affects its durability.
This increase is caused due to several factors such as, lack of mandatory standards and codes for the Lebanese construction, the urban expansion which means the increase of new residential buildings, and the huge number of Syrian displaced.
Online since: August 2013
Authors: Shu Qin Yan, Ming Zhong Li, Ling Shuang Wang
Carbodiimide induced silk fibroin to form Silk I crystal structure which was not affected by the presence of hyaluronic acid.
It is an attractive protein for biomedical applications due to its biocompatibility, biodegradability, self-assembly, mechanical stability, controllable structure and morphology.
Cell behavior on biomaterials is an important factor in evaluating the biocompatibility of a biomaterial.
It is generally known that the hydrophobicity/hydrophilicity of a material surface can affect the degree of cell adhesion and proliferation.
Through the introduction of HA, the hydrophobic protein in SF and the hydrophilicity of HA may achieve this balance of hydrophilic and hydrophobic properties at the surface of the blend films.
It is an attractive protein for biomedical applications due to its biocompatibility, biodegradability, self-assembly, mechanical stability, controllable structure and morphology.
Cell behavior on biomaterials is an important factor in evaluating the biocompatibility of a biomaterial.
It is generally known that the hydrophobicity/hydrophilicity of a material surface can affect the degree of cell adhesion and proliferation.
Through the introduction of HA, the hydrophobic protein in SF and the hydrophilicity of HA may achieve this balance of hydrophilic and hydrophobic properties at the surface of the blend films.
Online since: March 2014
Authors: Yang Wu, Di Ming Lou, Zhi Yuan Hu, Pi Qiang Tan, Jian Jun Lin
Experimental Study on the Influence of Injection Timing on Combustion and Emission of Biodiesel Engine based on Mechanical Mechanics
DiMing Lou1,a, Yang Wu1,b, ZhiYuan Hu1,c, PiQiang Tan 1,d, JianJun Lin1,e
1School of Automobile, Tongji University, Shanghai 201804, China
aloudiming@tongji.edu.cn, bwuyangyf@foxmail.com, chuzhiyuan@tongji.edu.cn, dtpq2000@163.com, elinjianjun_tju@163.com
Keywords: Chinese V Diesel engine; Biodiesel; Injection timing; Combustion; Emission
Abstract.
This article investigates the effect of different injection timings on combustion and emission characteristics of a Chinese V high pressure common rail diesel engine fuelled with blends of biodiesel and diesel (the volume ration of biodiesel is 20%) to provide a theoretical basis for the optimization of biodiesel application. 2 Fuel properties Fuel used in this article was 20% V/V biodiesel from waste cooking oil blends with Chinese V diesel (referred to as "BD20").
The properties of BD20, pure Chinese V diesel (D100), pure biodiesel (BD100) are summarized in Table 1.
Table 1 Fuel properties.
The two factors coupled with the effect of load caused the above phenomenon. 4.10 Unburned hydrocarbon The influence of retarded injection timing on HC emission can be clearly seen in Fig.10.
This article investigates the effect of different injection timings on combustion and emission characteristics of a Chinese V high pressure common rail diesel engine fuelled with blends of biodiesel and diesel (the volume ration of biodiesel is 20%) to provide a theoretical basis for the optimization of biodiesel application. 2 Fuel properties Fuel used in this article was 20% V/V biodiesel from waste cooking oil blends with Chinese V diesel (referred to as "BD20").
The properties of BD20, pure Chinese V diesel (D100), pure biodiesel (BD100) are summarized in Table 1.
Table 1 Fuel properties.
The two factors coupled with the effect of load caused the above phenomenon. 4.10 Unburned hydrocarbon The influence of retarded injection timing on HC emission can be clearly seen in Fig.10.
Online since: November 2018
Authors: Gundars Mežinskis, Ilona Pavlovska, Laimons Paulis Bīdermanis
Optical properties were investigated by a UV/VIS spectrophotometer (Shamidzu SolidSpec-3700) in the range of 300–2500 nm.
Photocatalytic properties were investigated by a UV/VIS photospectrometer (Elmer Perkin LAMBDA 650).
Several steps were taken to improve the chemical, mechanical, and thermal properties of the developed enamel.
Optical, Photocatalytical and Structural Properties of TiO2-SiO2 Sol-Gel Coatings on High Content SiO2 Enamel Surface.
Effect of Different Dip-Coating Techniques on TiO2 Thin Film Properties.
Photocatalytic properties were investigated by a UV/VIS photospectrometer (Elmer Perkin LAMBDA 650).
Several steps were taken to improve the chemical, mechanical, and thermal properties of the developed enamel.
Optical, Photocatalytical and Structural Properties of TiO2-SiO2 Sol-Gel Coatings on High Content SiO2 Enamel Surface.
Effect of Different Dip-Coating Techniques on TiO2 Thin Film Properties.
Online since: February 2006
Authors: C.A. Bellemare-Davis, K. Karan, J.G. Pharoah, G. Zak
Under such conditions, mass transport to catalytic surface may be expected to become a limiting
factor in overall reactor efficiency.
Overall, as evidenced in recent studies, microreactors with catalyst-coated channels promise conversion factors comparable to the packed-bed designs. [1,8,14].
Moreso than other materials, metals experience large heat-affected zones (HAZs) when subject to nanosecond-pulse or continuous-wave lasers, and the primary mode of material removal is thermal ablation: rapid evaporation following liquefaction[7,19].
The fluid used in this simulation has the properties of air heated to 470K.
used to strip thin layers (~2-4μm) of aluminum from the surface at a time, such that local asymmetries and melting have limited opportunity to affect the developing profile over multiple passes.
Overall, as evidenced in recent studies, microreactors with catalyst-coated channels promise conversion factors comparable to the packed-bed designs. [1,8,14].
Moreso than other materials, metals experience large heat-affected zones (HAZs) when subject to nanosecond-pulse or continuous-wave lasers, and the primary mode of material removal is thermal ablation: rapid evaporation following liquefaction[7,19].
The fluid used in this simulation has the properties of air heated to 470K.
used to strip thin layers (~2-4μm) of aluminum from the surface at a time, such that local asymmetries and melting have limited opportunity to affect the developing profile over multiple passes.
Online since: April 2021
Authors: Marwa Atif Ali
The leaves hold a gooey semitransparent bitter gel that has antiviral and antibacterial properties, in addition, healing properties.
Finally, investigate of final samples performance for the different barrier properties.
The test results of the odor absorption test were analyzed by using a single factor of variance (ANOVA) test.
Bursting strength resistance of produced samples Evaluation of Produced Samples Properties Figures 16 & 17 and Table 4 show the radar evaluation charts by calculating the area of the properties for each group of samples.
Also, it was found that the increase of the non-woven sub-layers' number of the produced samples was affected on the properties of the final sample clearly, especially on contact angle for both surfaces, bursting strength resistance, and stiffness values properties.
Finally, investigate of final samples performance for the different barrier properties.
The test results of the odor absorption test were analyzed by using a single factor of variance (ANOVA) test.
Bursting strength resistance of produced samples Evaluation of Produced Samples Properties Figures 16 & 17 and Table 4 show the radar evaluation charts by calculating the area of the properties for each group of samples.
Also, it was found that the increase of the non-woven sub-layers' number of the produced samples was affected on the properties of the final sample clearly, especially on contact angle for both surfaces, bursting strength resistance, and stiffness values properties.
Online since: December 2015
Authors: Seon Jeong Kim, A Young Choi, Hyeon Jun Sim, Min Kyoon Shin, Youn Tae Kim
In the electrospun fibers, the peak at 2q = 18.4° was significantly decrease compared to that of casting film, confirming that mechanical stretching occurs and a nonpolar a-phase structure is transformed to a polar b-phase structure by electrospinning.
The main origins of piezoelectric responses can be divided into to two factors; one is beta phase ratio and the other is molecular dipole alignment in the electrospun fibers.
Charge density per volume value is affected by electrospinning conditions such as material, solvent, concentration of solution and applied voltage [17].
When the electric field generated by residual charge affect to dipole orientation of electrospun PVDF-TrFE fibers, the piezoelectric performance can decrease with distance.
Summary PVDF–TrFE electrospun fibers were fabricated by FFES and confirmed to have piezoelectric properties.
The main origins of piezoelectric responses can be divided into to two factors; one is beta phase ratio and the other is molecular dipole alignment in the electrospun fibers.
Charge density per volume value is affected by electrospinning conditions such as material, solvent, concentration of solution and applied voltage [17].
When the electric field generated by residual charge affect to dipole orientation of electrospun PVDF-TrFE fibers, the piezoelectric performance can decrease with distance.
Summary PVDF–TrFE electrospun fibers were fabricated by FFES and confirmed to have piezoelectric properties.