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Online since: December 2025
Authors: Oluwafemi Taiwo Aduewa, Samuel Oladele, Simon Gbenga Omotoso, Patrick Ayoola Olalusi, Solomon Ajiboye Oyerinde
These preparatory steps can modify the physical and biochemical properties of yam slices, leading to faster and more efficient drying.
This research aims to bridge this gap by investigating the influence of these factors on drying kinetics and energy activation for white yam.
Okolie, Nutritional composition, anti-nutritional properties, and sensory attributes of fried white yam (Dioscorea rotundata) slice as influenced by different pre-treatment methods.
Abdisa, Effect of pretreatments and solar tunnel dryer zones on functional properties, proximate composition, and bioactive components of pumpkin (Cucurbita maxima) pulp powder.
Foued, Effect of Different Drying Methods on the Physico-Chemical Properties of Tomato Variety ‘Rio Grande’.
Online since: February 2015
Authors: Yang Yu, Wei Chao Zhang, Ya Rong Wang
., including inherently low irradiation-induced activity, good mechanical properties, high thermal conductivity and good resistance to irradiation-induced swelling and damage [1-3].
One of the main factors contributing to these challenges is the brittle compounds formation.
Another of the main factors is attributed to the physical mismatch of the combination of materials and processes used.
The major mechanical and physical properties were listed in table 2.
Effect of precipitation and solution behavior of impurities on mechanical properties of low activation vanadium alloy, J.
Online since: October 2011
Authors: Bin Bin Zhang, Wan Lin Cao, Hong Yue Yu, Hai Cheng Wang
In the bridge service, the structural damage cannot be avoided [2-3], which is effected by many factors, e.g., the unsuitable maintenances, the accident, earthquake and erosion etc..
The disadvantages of local procedures include- Subjectivity based on the experience of test personnel; poor structural integrity because of unpalpable locations; bad real time capability which cannot be early warning in time; affecting the normal traffic, especially the load test.
As for uncertainty factors of bridge structures and complicated working environment, there is a bad influence for sensitivity of dynamic parameters.
The whole working status is evaluated through global procedures; and so the mechanical properties and safety function can be understand from global concept for making maintenance strategy.
During the construction and service period of bridges, bridge safety, applicability and durability will be decreased because of external factors (e.g. vehicle, wind and man-made action) and internal factors (e.g. material degradation and fatigue effect).
Online since: March 2015
Authors: Jun Hua, Hai Ying Yu, Xiu Li Zhou, Jiu Yang Hou
Study on data fusion algorithms of hot-pressing measurement process of wood-based panels Haiying Yu1,a, Jun Hua2,b *, Xiuli Zhou2,3,c , Jiuyang Hou1,d 1 College of Computer and Information Engineering, Heilongjiang University of Science and Technology, Harbin, China 2 College of Mechanical and Electrical Engineering, Northeast Forestry University, Harbin, China 3 College of Electrical and Information Engineering, Northeast Agricultural University, Harbin, China a yuhying2004@163.com, c xlzhou@neau.edu.cn, d houjy2000@163.com b * Corresponding author: Jun Hua, Ph.
In the factors that influence hot pressing process, pressure, temperature and time span occupy a leading position.
The pressure (mostly water vapour pressure) plays an important role in stress relaxation phase which directly affects whether the sheet is getting layered or blistered thus affects the mechanical properties and heat-transfer interaction.
If it substitutes the corresponding parameter in Eq.10 and Eq.11, the results are (14) (15) D-S evidence theory fusion algorithm on decision-making level Suppose U is a frame of discernment which is a set of mutually exclusive propositions and denotes the power set of U, the mass function m (basic probability assignment, or BPA) that is defined on as (16) Here, m is defined for every element A of such that the mass value m(A) belongs to the [0, 1] interval with the following property[4]: (17) Where is the empty set.
Two bodies of evidence m1 and m2 with focal elements and of and belief functions and on the same frame U respectively, can be combined to yield a new mass function m by a combination rule [5]: (22) (23) where K is called conflict factor measuring the degrees of conflict between the different bodies of evidence.
Online since: November 2012
Authors: Li Sha Song, Li Sun, Hong Yuan Huo, Tong Xing, Chen Jie Cao
The tests were carried out to study the effects of the fraction of steel fiber by volume and the thickness of cement paste wrapping steel fibers on the axial tensile properties of steel fiber reinforced concrete (SFRC).
Their properties are listed in Table 1 to Table 4.
Table 1 Physical and mechanical properties of cement Fineness (%) Standard consistence (%) Setting time (min) Compressive strength (MPa) Flexural strength (MPa) Initial Final 3d 28d 3d 28d 2.0 29.20 185 295 29.5 46.8 5.4 8.0 Table 2 Physical properties of cement Particle size distribution Fineness modulus Apparent density (kg/m3) Bulk density (kg/m3) Closed-volume density (kg/m3) Mud content (%) 0.16~5 3.3 2600 1490 1620 1.6 Table 3 Physical properties of stone Apparent density (kg/m3) Bulk density (kg/m3) Crushed index (%) Mud content (%) 2720 1430 9 0.4 Table 4 Characteristic parameters of steel fiber Average length (mm) Average width (mm) Average thickness (mm) Equivalent diameter (mm) Aspect ratio 40.02 0.92 0.57 0.87 46 Table 5 Test combination parameters Strength grade Fraction of steel fiber by volume (%) Thickness of cement paste wrapping steel fibers (mm) Water to cement ratio Sand ratio (%) Water reducer (%) CF40 0.0/0.5/1.5/2.0 1.0 0.45 41 0.6 1.0 0.8/1.0/1.2
The thickness of cement paste wrapping steel fibers affects a little on the axial tensile strength and the stress-strain curve.
Li, Experimental study on axial-tensile properties of steel fiber reinforced concrete, Journal of North China Institute of water Conservancy and Hydroelectric Power, 3 (2007) 8-50.
Online since: September 2020
Authors: Luong Hong Sam, Anh Son Tran
Moreover, microbubbles have unique properties like “self-pressure”, “negative charge” etc., so they attract positively charged particles namely dust, then send them towards the water surface (Fig. 1).
Microbubbles, mechanical effects and temperature effects are three parameters affecting directly washing efficiency [7,8], and microbubbles also are the major factor.
These phenomena bring mechanically effects to the affected environments.
In discussion, mechanical soaking time was the most influential parameter in the mechanical purity.
Adjusting the mechanical soaking time from level 1 to level 2 caused the significant change of the mechanical purity.
Online since: April 2011
Authors: José Divo Bressan, Celso Antonio Barbosa, André Marcon Zanatta, Jefferson De Oliveira Gomes
Some properties commonly considered include the surface integrity or surface damage, surface roughness, subsurface and surface hardness, microstructure and residual stresses.
The tool edge geometry is the dominant factor determining the residual stress profile [3].
A greater negative rake angle of tool insert gives higher compressive stresses as well as a deeper affected zone below the surface while cutting depth does not affect residual stresses [1][4].
Polishability is defined as a measure of how easy it is to perform surface polishing in tool steels, being affected by various metallurgical factors.
The polishing level affects the transparency or how the injected polymer part will absorb or reflect light.
Online since: November 2018
Authors: Benaoumeur Aour, Mekki Larabi, Salah Mebarki, Abdel Hakem Belaghit
It is permanently exposed to high pulsatile pressure and shear stress, which makes it subject to mechanical injury.
The material properties of the blood are taken as follows [14]: dynamic molecular viscosity: 0.003 kg/(m.s),  density: 1060 kg/m3.
In fact, this numerical simulation allowed us to identify the morphological and/or biomechanical factors that can be used to predict the subsequent risks underlying the aneurysmal development of the aorta and stent implantation.
In addition, it provides surgeons more insight into hemodynamic factors, such as, the 3D pressure field and shear stresses of the aortic wall.
Kleinstreuer, Analysis of biomechanical factors affecting stent-graft migration in an abdominal aortic aneurysm model, Journal of Biomechanics. 39 (2006) 2264–2273
Online since: June 2013
Authors: Xian Feng Li, Xin Da Qi, Xiao Peng Wang, Ping Yu, Jing Wang, Yan Wang
In the space, it is easy to introduce various forms of interference and noise, affect the reliability of power supply directly, thereby affecting the OCO's technical performance.
The shell temperature must be strictly limited within the expected temperature.It is generally recommended that range from 30% to 70% of the rated power is appropriate (specific ratio of the size and other factors), DC/DC module has a good performance and adequate reliable in this range.
Circuit design should take reasonable ground design as well as additional filters to meet the requirements of noise conduction.A chassis with good electrical properties can reduce electromagnetic radiation, the intensity of the electromagnetic interference can be attenuated to the original one percent to more than one millionth usually [7] .
First determine the circuit allows maximum rated current, select the the corresponding derating factor, and then, depending on the type of fuse, rated current value multiplied by the derating factor S is not less than the maximum rated operating current, and then according to the selected fuse Specifications table, choose a slightly larger than the current specifications.
Beijing: Mechanical Industry Press, 1998
Online since: June 2014
Authors: Mihail V. Komarinskiy, Yury Barabanshchikov
Influence of superplasticizer S-3 on the technological properties of concrete mixtures Yu.
The most important technological properties of concrete mixtures are workability , resistance to water gain, and mortar separation, keeping properties in time , air entrainment .
Factors affecting the plasticizing ability HP are the specific surface of cement content of C3A , Na2O and SO3 [10].
The effect of S-3 on the properties of concrete mixtures with different cements studied extensively.
Fig. 2 and 3 show the dependence of the properties of concrete mixtures containing an additive superplasticizer S-3.
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