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Online since: July 2024
Authors: Mohd Gulam Waris Khan, Sadaf Ahmad
In the Indian context, the use of plastics in food packaging has witnessed exponential growth, driven by factors such as urbanization, changing lifestyles, and an expanding consumer base.
The ideal packaging system for these goods should maintain their quality over time and have sufficient mechanical properties.
The most crucial factors for the packaging and storage of food grains were taken into consideration when choosing the parameters for the tests and trials.
" • The tensile strength and stretch ability of PP Woven Sacks are superior mechanical properties
Notably, plastics exhibit commendable strength with high thermo-mechanical properties and chemical resistance, providing an excellent barrier against moisture.
The ideal packaging system for these goods should maintain their quality over time and have sufficient mechanical properties.
The most crucial factors for the packaging and storage of food grains were taken into consideration when choosing the parameters for the tests and trials.
" • The tensile strength and stretch ability of PP Woven Sacks are superior mechanical properties
Notably, plastics exhibit commendable strength with high thermo-mechanical properties and chemical resistance, providing an excellent barrier against moisture.
Online since: May 2022
Authors: Oyetola Ogunkunle, Kehinde Oladoke Olatunji, Oladunni Adeleke Adisa, Adewumi Taiwo
One of the predominant factors that control the farmers' output and efficiency is the composition and number of the family members.
Likewise, heavy agricultural machinery on the soil has been significantly affecting soil properties [56].
Uwaegbute, Food Insecurity and Associated Factors Among University Students, (n.d.). https://doi.org/10.1177/0379572119826464
Olakunle, Variation in the Physico-Chemical Properties of Badagry and Ikorodu Soils, Lagos Nigeria, Int.
Kariuki, Factors Determining Adoption of New Agricultural Technology by Smallholder Farmers in Developing Countries, J.
Likewise, heavy agricultural machinery on the soil has been significantly affecting soil properties [56].
Uwaegbute, Food Insecurity and Associated Factors Among University Students, (n.d.). https://doi.org/10.1177/0379572119826464
Olakunle, Variation in the Physico-Chemical Properties of Badagry and Ikorodu Soils, Lagos Nigeria, Int.
Kariuki, Factors Determining Adoption of New Agricultural Technology by Smallholder Farmers in Developing Countries, J.
Online since: March 2023
Authors: Karanjit Kapila, Nabanita Daimary, Pulakesh Chetia, Pranjal Borah, Roktutpal Borah
Chouw, “Mechanical and dynamic properties of coconut fibre reinforced concrete,” Constr.
Czigány, “Chemical Composition and Mechanical Properties of Basalt and Glass Fibers: A Comparison,” Text.
Srivastava, “Effect of Fibre Length on Mechanical Properties of Randomly Oriented Short Jute Fibre Reinforced Epoxy Composite,” Mater.
Bledzki, “The influence of fiber-surface treatment on the mechanical properties of jute-polypropylene composites,” Compos.
Magalhaes, “Analysis of the mechanical and thermal properties of jute and glass fiber as reinforcement epoxy hybrid composites,” Mater.
Czigány, “Chemical Composition and Mechanical Properties of Basalt and Glass Fibers: A Comparison,” Text.
Srivastava, “Effect of Fibre Length on Mechanical Properties of Randomly Oriented Short Jute Fibre Reinforced Epoxy Composite,” Mater.
Bledzki, “The influence of fiber-surface treatment on the mechanical properties of jute-polypropylene composites,” Compos.
Magalhaes, “Analysis of the mechanical and thermal properties of jute and glass fiber as reinforcement epoxy hybrid composites,” Mater.
Online since: February 2014
Authors: Chuan Lin Zhou, Chao Cheng Zheng, Dong Xiang Cheng
Main pollutants
Asphalt was widely used in waterproof, paints, plastics and rubber, hence, the amount of asphalt was increased, moreover, the aggregates and equipment in thermal and mixing processing would increase smoke emissions, while in the course of use, the components of asphalt will be leached out to a certain extent due to external factors such as acid rain, ground de-icing salt and oil [4].
Nonpoint source air pollution affects air quality from sources such as smokestacks or car tailpipes.
Experts have pointed out the inevitable contact with water between water and asphalt could be beneficial to asphalt leaching, thereby, affect water quality.
According to one of two studies conducted by the Blue Ridge Environmental Defense League, property value for residential homes near asphalt plants have reported losses of up to 56 percent.
Environmental performance and mechanical analysis of concrete containing recycled asphalt pavement (RAP) and waste precast concrete as aggregate.
Nonpoint source air pollution affects air quality from sources such as smokestacks or car tailpipes.
Experts have pointed out the inevitable contact with water between water and asphalt could be beneficial to asphalt leaching, thereby, affect water quality.
According to one of two studies conducted by the Blue Ridge Environmental Defense League, property value for residential homes near asphalt plants have reported losses of up to 56 percent.
Environmental performance and mechanical analysis of concrete containing recycled asphalt pavement (RAP) and waste precast concrete as aggregate.
Online since: April 2004
Authors: Kikuo Kishimoto, Mitsuo Notomi, Husaini Husaini
The fracture properties are controlled by the growth and coalescence of voids
[1].
The displacement field designated by mode I stress intensity factor is applied on nodes far field from the crack tip. 2. 1.
The modeling is carried out with properties of measured values of matrix (AS resin) (E = 3710 MPa, � = 0.35).
The rubber particle's properties were assumed by initial tensile modulus E = 1.2984 MPa [10].
It can be seen from Fig. 6 that, the octahedral stress greatly reduces affected by debonding condition significantly.
The displacement field designated by mode I stress intensity factor is applied on nodes far field from the crack tip. 2. 1.
The modeling is carried out with properties of measured values of matrix (AS resin) (E = 3710 MPa, � = 0.35).
The rubber particle's properties were assumed by initial tensile modulus E = 1.2984 MPa [10].
It can be seen from Fig. 6 that, the octahedral stress greatly reduces affected by debonding condition significantly.
Online since: June 2015
Authors: Jonas Alexandre, Gustavo de Castro Xavier, Afonso Rangel Garcez de Azevedo, Fernando Saboya Albuquerque, Sergio Neves Monteiro, Carla Bozzi Piazzarollo, Paulo Cezar de Almeida Maia
From the point of view of mechanical strength, ceramic materials exhibit dispersion results after being subjected to various levels of stress.
Specifically, the mechanical strength of red ceramic incorporated with ornamental rock waste and fired up to 700°C was analyzed, before and after degradation.
Ott and Longnecker [14] shows that the analysis of variance (ANOVA) for a completely randomized design follows the Equation (g): Yij = m + ti + eij (g) Where Yij is the observed value in the plot that received the treatment i with j repetitions, m is the overall observed average, ti is the effect of treatment i and eij is the experimental error, that is, the effect of uncontrolled factors in the plot.
Thus, one is sure that statistically the continuous leaching test is efficient, and, indeed, associated with the degradation of the ceramic material and affecting their durability.
Standard Test Method for Flexural Properties of Ceramic Whiteware Materials.
Specifically, the mechanical strength of red ceramic incorporated with ornamental rock waste and fired up to 700°C was analyzed, before and after degradation.
Ott and Longnecker [14] shows that the analysis of variance (ANOVA) for a completely randomized design follows the Equation (g): Yij = m + ti + eij (g) Where Yij is the observed value in the plot that received the treatment i with j repetitions, m is the overall observed average, ti is the effect of treatment i and eij is the experimental error, that is, the effect of uncontrolled factors in the plot.
Thus, one is sure that statistically the continuous leaching test is efficient, and, indeed, associated with the degradation of the ceramic material and affecting their durability.
Standard Test Method for Flexural Properties of Ceramic Whiteware Materials.
Online since: November 2011
Authors: Quan Zhou, Jian Yin, Le Ping Chen
It is proposed that LVECP treatment created a new dynamic factor for nucleation so that the number of nuclei increased, which restrained the formation of large primary α-Mg dendrites and created a base to form spherical crystals of primary α-Mg.
It offers numerous merits in physical, mechanical and casting properties, such as high specific strength and stiffness, good castability suitable for high pressure die casting, low density, high damping capacity, good thermal and electric conductivity [1].
Although these studies have been fruitful, they have seldom been concerned with magnesium alloy as affected by low-voltage electropulsing.
It was proved that Ca is an effective element to improve the oxidation resistance and mechanical properties of magnesium alloys [10], so 3 wt.% Ca was added as the oxidation inhibitor.
LVECP treatment created a new dynamic factor for nucleation.
It offers numerous merits in physical, mechanical and casting properties, such as high specific strength and stiffness, good castability suitable for high pressure die casting, low density, high damping capacity, good thermal and electric conductivity [1].
Although these studies have been fruitful, they have seldom been concerned with magnesium alloy as affected by low-voltage electropulsing.
It was proved that Ca is an effective element to improve the oxidation resistance and mechanical properties of magnesium alloys [10], so 3 wt.% Ca was added as the oxidation inhibitor.
LVECP treatment created a new dynamic factor for nucleation.
Online since: May 2011
Authors: Nong Zhang, Ming Ji
Expansion property is of great significance to engineering.
On the one hand, expansion rock has strong expansion performance, when it is disturbed by something, especially by water, its properties will change dramatically and its volume increases.
China is one of the countries with most widely distributed expansion rock in the world, because of the special engineering properties, research on expansion rock and its engineering disaster has important significance to engineering [1-3].
In fact, water has physical, chemical and mechanical effect on rocks.
The constitutive equation of rock considering humidity field For humidity field loading problems, constitutive relation affected by humidity, elastoplastic and other factors should be taken into consideration.
On the one hand, expansion rock has strong expansion performance, when it is disturbed by something, especially by water, its properties will change dramatically and its volume increases.
China is one of the countries with most widely distributed expansion rock in the world, because of the special engineering properties, research on expansion rock and its engineering disaster has important significance to engineering [1-3].
In fact, water has physical, chemical and mechanical effect on rocks.
The constitutive equation of rock considering humidity field For humidity field loading problems, constitutive relation affected by humidity, elastoplastic and other factors should be taken into consideration.
Online since: September 2011
Authors: Jun Xie, Guo Liang Wang, Xiao Hua Zheng, Yi Shu Zhou
Although epoxy-bonded steel plate reinforcement has been applied in practice home and abroad for more than 30 years, most of researches focus on the mechanical property and structure of this reinforcement method[2]-[5]and seldom on quality inspection of epoxy-bonded steel plate reinforcement.
In order to realize standardized inspection, mesh for detection is a reasonable method, but in practice a lot of factors have to be considered for determining the mesh size: (1) the constraints on mesh quantity when acceptance rate of bonding area is 95%; (2) balancing between inspection workload and accuracy; (3) limit on hammer size.
Determine defect area No End inspection Figure 1 Flow chart of subdivided mesh hammer test Mesh which would contain defect Figure 2 Subdivision of mesh containing defect Infrared holography test for epoxy-bonded steel plate compactness Normally the defective or damaged part such as void inside an object has different thermal properties such as thermoconductivity and specific heat from non-defective part.
Due to the difference of thermal properties between non-defective part and defective (damaged) part, the temperature variation of a structure caused and generated by air temperature and sunlight or artificial heating or cooling appears as surface temperature difference.
Many factors such as season, region and climate (cloud, fog) can affect sunlight intensity.
In order to realize standardized inspection, mesh for detection is a reasonable method, but in practice a lot of factors have to be considered for determining the mesh size: (1) the constraints on mesh quantity when acceptance rate of bonding area is 95%; (2) balancing between inspection workload and accuracy; (3) limit on hammer size.
Determine defect area No End inspection Figure 1 Flow chart of subdivided mesh hammer test Mesh which would contain defect Figure 2 Subdivision of mesh containing defect Infrared holography test for epoxy-bonded steel plate compactness Normally the defective or damaged part such as void inside an object has different thermal properties such as thermoconductivity and specific heat from non-defective part.
Due to the difference of thermal properties between non-defective part and defective (damaged) part, the temperature variation of a structure caused and generated by air temperature and sunlight or artificial heating or cooling appears as surface temperature difference.
Many factors such as season, region and climate (cloud, fog) can affect sunlight intensity.
Online since: April 2014
Authors: Tong Jie Zhang, Yan Cao, Xiang Wei Mu
It will cause casualties and property losses once accident happens [1].
Therefore, this requires analyzing various factors affecting the safety of DGT comprehensively to determine the suitable solution, so as to achieve the purpose of the dangerous goods transport path optimization.
Travel range determines the mechanical loss of fuel consumption.
Among which, cost includes the fuel consumption, vehicle mechanical wear and tear, driver manpower cost transportation cost.
Therefore, this requires analyzing various factors affecting the safety of DGT comprehensively to determine the suitable solution, so as to achieve the purpose of the dangerous goods transport path optimization.
Travel range determines the mechanical loss of fuel consumption.
Among which, cost includes the fuel consumption, vehicle mechanical wear and tear, driver manpower cost transportation cost.