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Online since: February 2016
Authors: Arantzazu Valdés, María Carmen Garrigós
Nutritional and processing properties of plant-based foods are heavily influenced by wall properties.
As a consequence, plants have developed a range of morphological, physiological and biochemical mechanisms that enable them to avoid and/or tolerate stress factors and survive.
Characterization of starch films containing starch nanoparticles: Part 1: Physical and mechanical properties, Carbohydr.
Famá, Structural and mechanical properties of edible films made from native and modified cush-cush yam and cassava starch, Food Hydrocolloids 45 (2015) 211-217
Mechanical and water barrier properties of agar/κ-carrageenan/konjac glucomannan ternary blend biohydrogel films.
As a consequence, plants have developed a range of morphological, physiological and biochemical mechanisms that enable them to avoid and/or tolerate stress factors and survive.
Characterization of starch films containing starch nanoparticles: Part 1: Physical and mechanical properties, Carbohydr.
Famá, Structural and mechanical properties of edible films made from native and modified cush-cush yam and cassava starch, Food Hydrocolloids 45 (2015) 211-217
Mechanical and water barrier properties of agar/κ-carrageenan/konjac glucomannan ternary blend biohydrogel films.
Online since: January 2018
Authors: Zbyněk Keršner, Hana Šimonová, Libor Topolář, Pavel Rovnaník, Pavel Schmid
Addition of graphite powder increases its electric conductivity, hence, introducing new functionality to building materials such as self-sensing and self-heating properties.
The mechanical properties and application possibilities of AAS are very similar to OPC based materials.
Although graphite is added to improve the sensing properties of the building material, it should not deteriorate its mechanical fracture properties.
Addition of graphite also affected fracture properties.
Keršner, Mechanical fracture properties of alkali-activated slag with graphite filler, Procedia Engineering, 2017, accepted for publication
The mechanical properties and application possibilities of AAS are very similar to OPC based materials.
Although graphite is added to improve the sensing properties of the building material, it should not deteriorate its mechanical fracture properties.
Addition of graphite also affected fracture properties.
Keršner, Mechanical fracture properties of alkali-activated slag with graphite filler, Procedia Engineering, 2017, accepted for publication
Online since: December 2012
Authors: Zhi Juan Zhang
Meanwhile, glycol was added as dispersant which mainly affected the nucleation and growth and effectively inhibited the growth of colloidal particles.
This is probably because in the preparation system the amount of citric acid is quite large, so the quantity of initial crystal seeds and their growth rates are slightly affected.
Thus, the mechanical properties of the sample will be affected.
c b a Fig. 2 SEM of the cross-sections of CGO samples sintered at 1100 oC for 5h under the pressure of 400 MPa (a), 500 MPa (b) and 600 MPa (c) Sintering is the last step of ceramics preparation which affects the microstructure, physical properties and mechanical properties of the products.
Factors that may affect the sintering include the particle size of the original powders, the use of sintering additives and sintering conditions, etc.
This is probably because in the preparation system the amount of citric acid is quite large, so the quantity of initial crystal seeds and their growth rates are slightly affected.
Thus, the mechanical properties of the sample will be affected.
c b a Fig. 2 SEM of the cross-sections of CGO samples sintered at 1100 oC for 5h under the pressure of 400 MPa (a), 500 MPa (b) and 600 MPa (c) Sintering is the last step of ceramics preparation which affects the microstructure, physical properties and mechanical properties of the products.
Factors that may affect the sintering include the particle size of the original powders, the use of sintering additives and sintering conditions, etc.
Online since: March 2010
Authors: Xiao Dong He, Hai Ying Li, Nai Tiao Yang, Fu Qian Shi, Jian Feng Wu
It not only affects the patients' psychological and
physical state but also brings complex social problems.
However, the muscle hardness is affected by many environmental and subjective factors.
The last muscle force and joint torque calculation method is based on the relations between muscle mechanical properties and bio-signals.
Xu: China Mechanical Engineering, Vol. 19 (2008), p. 571-574 [8] F.E.
Du, et al: Chinese Journal of Mechanical Engineering.
However, the muscle hardness is affected by many environmental and subjective factors.
The last muscle force and joint torque calculation method is based on the relations between muscle mechanical properties and bio-signals.
Xu: China Mechanical Engineering, Vol. 19 (2008), p. 571-574 [8] F.E.
Du, et al: Chinese Journal of Mechanical Engineering.
Online since: December 2013
Authors: Stephen Yue, Seyed Mohammad Kazem Hosseini, Abbass Zarei-Hanzaki
In a recently-developed low-silicon content TRIP-assisted multiphase steel, outstanding mechanical properties are achieved after two-stage intercritical annealing and bainitic holding heat treatment [4].
To achieve an appropriate microstructure and hence the optimum mechanical properties in multiphase TRIP-assisted steels through thermomechanical processing, the effects of process variables on microstructural characteristics have to be thoroughly identified.
Some literatures [13], [14] emphasized on increasing VRA% and improving mechanical properties after deformation while there are other reports [15] indicated the opposite effects of deformation.
Previous literature emphasized on retained austenite composition, size, and morphology as three main factors affect stability of RA particles.
According to several workers, these morphologies can effectively control the mechanical properties of TRIP steels.
To achieve an appropriate microstructure and hence the optimum mechanical properties in multiphase TRIP-assisted steels through thermomechanical processing, the effects of process variables on microstructural characteristics have to be thoroughly identified.
Some literatures [13], [14] emphasized on increasing VRA% and improving mechanical properties after deformation while there are other reports [15] indicated the opposite effects of deformation.
Previous literature emphasized on retained austenite composition, size, and morphology as three main factors affect stability of RA particles.
According to several workers, these morphologies can effectively control the mechanical properties of TRIP steels.
Online since: October 2024
Authors: Nicola Contuzzi, Mariia Rashkovets, Paolo Posa, Vito Denora, Giuseppe Casalino, Andrea Angelastro
Eventually, the application of CGTAW resulted in promising at obtaining joint with good mechanical properties.
1.
The research focus was on the impact of the laser offset on the microstructure and mechanical properties of the T2 copper/304 SS (Cu/304SS) weld butt joint.
Casalino: Experimental Investigation of Material Properties in FSW Dissimilar Aluminum-Steel Lap Joints.
Zeng: Microstructures and mechanical properties of laser-arc hybrid welded dissimilar pure copper to stainless steel.
Huang, ZL Lü: Microstructure and properties of pure iron/copper composite cladding layers on carbon steel.
The research focus was on the impact of the laser offset on the microstructure and mechanical properties of the T2 copper/304 SS (Cu/304SS) weld butt joint.
Casalino: Experimental Investigation of Material Properties in FSW Dissimilar Aluminum-Steel Lap Joints.
Zeng: Microstructures and mechanical properties of laser-arc hybrid welded dissimilar pure copper to stainless steel.
Huang, ZL Lü: Microstructure and properties of pure iron/copper composite cladding layers on carbon steel.
Online since: July 2011
Authors: Hong Yuan Fang, Jian Guo Yang, Xue Song Liu, Lu Yong Huang, Hai Bo Pan
Since strength is often the predominant factor in the application of HSLA steels, the filler metal is often selected on the basis of matching the strength of the base metal.
The cold cracking, sometimes called as hydrogen cracking, occurs when the following four factors are present simultaneously: hydrogen in the weld metal, high stresses, susceptible microstructure (martensite), and relatively low temperature (between -100 and 200°C).
Another important parameter affecting the results of welded joints is distance between the arc and the forward roller.
So the proper distance between arc and roller should make the distance is short enough to keep the steel under the forward as austenite, this is because the austenite has better plastic property, lower yield strength and better toughness than the martensite.
Factors Controlling Cold Crack Susceptibility of Weld Metal.
The cold cracking, sometimes called as hydrogen cracking, occurs when the following four factors are present simultaneously: hydrogen in the weld metal, high stresses, susceptible microstructure (martensite), and relatively low temperature (between -100 and 200°C).
Another important parameter affecting the results of welded joints is distance between the arc and the forward roller.
So the proper distance between arc and roller should make the distance is short enough to keep the steel under the forward as austenite, this is because the austenite has better plastic property, lower yield strength and better toughness than the martensite.
Factors Controlling Cold Crack Susceptibility of Weld Metal.
Online since: January 2012
Authors: Nadjet Rouag, A. Ayad, A. Boumaiza
The presence of a texture has a great influence on mechanic, electric and magnetic properties.
The adequate thermo-mechanical treatments have the ability to control the texture evolution for the industrial applications.
In the plastic deformation studies, the microstructure is a basic factor of predicting the mechanical material behaviour.
When industrial metals possess a heterogeneous microstructure, the usual mechanical properties do not allow accurately determining the risks of cracking that often occurs throughout manufacturing and service.
The presence of microstructural inhomogeneities will certainly affect the agreement between predictions based on homogeneous deformation and the experimental observations [1–3].
The adequate thermo-mechanical treatments have the ability to control the texture evolution for the industrial applications.
In the plastic deformation studies, the microstructure is a basic factor of predicting the mechanical material behaviour.
When industrial metals possess a heterogeneous microstructure, the usual mechanical properties do not allow accurately determining the risks of cracking that often occurs throughout manufacturing and service.
The presence of microstructural inhomogeneities will certainly affect the agreement between predictions based on homogeneous deformation and the experimental observations [1–3].
Online since: August 2014
Authors: Guo Qin Liu, Wen Bo Wan, Li Juan Han, Xin Qi Liu
Introduction
Oleogel is a promising alternative for the food industry in the future in order to reduce even eliminate the trans fats in food products as well as keep the physical properties of solid fats[1].
One of problem is lack the understanding of the changes of oleogel’s structure and properties over time and temperature, which is critical to the control of its deterioration during storage process.
Oleogel is non-newtonian fluid, therefore, rheological characteristics of oleogel are important in addition to chemical and physical properties for the storage process.
Methods The rheological properties of the oleogel were studied using controlled-stress rheometer (RheoStress 600, Haake, Karlsruhe, Germany), equipped with a cone sensor (C35/1° Ti; 35 mm diameter, 1° angle).
Storage temperature, storage time and organogelators composition are critical factors to the apparent viscosity of oleogel.
One of problem is lack the understanding of the changes of oleogel’s structure and properties over time and temperature, which is critical to the control of its deterioration during storage process.
Oleogel is non-newtonian fluid, therefore, rheological characteristics of oleogel are important in addition to chemical and physical properties for the storage process.
Methods The rheological properties of the oleogel were studied using controlled-stress rheometer (RheoStress 600, Haake, Karlsruhe, Germany), equipped with a cone sensor (C35/1° Ti; 35 mm diameter, 1° angle).
Storage temperature, storage time and organogelators composition are critical factors to the apparent viscosity of oleogel.
Online since: December 2014
Authors: Zong Wei Li, Da Juan Yin
The views of verification expressed, dam downstream slope stability against sliding safety factor is less than the minimum allowable value specification, so where there is a sliding downstream slope instability is possible
For the downstream slope is instable, the proposed approach is using weathered material to pressure the slope.
Calculation uses the Swedish arc method ,to period of steady seepage, water landing slope stability. physical and mechanical properties of soil layers of dam used are shown in Table 1, the results in Table 2.
Table 2 The results of dam slope stability against sliding table From the results we know that the dam after the treatment in a variety of operating conditions, the downstream slope to calculate the minimum safety factor of stability against sliding slope is greater than allowed minimum safety factor , sliding stability meet the requirements.
Reinforcement ago After reinforcement Conclusions and recommendations By calculating the safety factor of the dam to meet regulatory requirements after the reinforcement value analysis, dam after treatment to achieve a stable requirement.
[2] Tian Hua Analysis factors that affect slope stability [J] Shanxi Water Resources, 2004 (6): 63 - 65
Calculation uses the Swedish arc method ,to period of steady seepage, water landing slope stability. physical and mechanical properties of soil layers of dam used are shown in Table 1, the results in Table 2.
Table 2 The results of dam slope stability against sliding table From the results we know that the dam after the treatment in a variety of operating conditions, the downstream slope to calculate the minimum safety factor of stability against sliding slope is greater than allowed minimum safety factor , sliding stability meet the requirements.
Reinforcement ago After reinforcement Conclusions and recommendations By calculating the safety factor of the dam to meet regulatory requirements after the reinforcement value analysis, dam after treatment to achieve a stable requirement.
[2] Tian Hua Analysis factors that affect slope stability [J] Shanxi Water Resources, 2004 (6): 63 - 65