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Online since: March 2022
Authors: Nufus Kanani, Endarto Yudho Wardhono, Pabika Salsabila Witri, Muhamad Toha, Alamsyah Alamsyah, Rahmayetty Rahmayetty
It is equipped with an optical microscope that is used to study the texture, topography, and surface properties of powders or solids.
Acetylation time is one of the factors that affect the rate of reaction.
The reaction occurs when the particles crash with each other and cause collision thus affecting the degradation process of bacterial cellulose into cellulose acetate.
Razak, A review on the properties of electrospun cellulose acetate and its application in drug delivery systems: A new perspective, Carbohydr.
Voicu, Synthesis and characterization of cellulose acetate membranes with self-indicating properties by changing the membrane surface color for separation of Gd(III), Coatings, vol. 10, no. 5, 2020, doi: https://doi.org/10.3390/coatings10050468
Online since: June 2012
Authors: Shu Dong Yang, Yu Yang, Xing Guo, Tao Xu
In order to reduce calculation scale and accelerate computing speed, chamfer and other characteristics that have less influence on mechanical property are omitted.
Material properties of the key parts.
Material properties of the nut, piston and output shaft are shown in Table 2.
The total efficiency of the actuator is consisted of mechanical efficiency and volumetric efficiency: the mechanical efficiency relates to the multi-start thread transmission efficiency and other mechanical friction losses, and the volumetric efficiency relates to inner leakage losses and outer leakage losses [5].
The multi-start thread transmission efficiency is the main factor that affects total efficiency.
Online since: March 2007
Authors: Han Cheol Choe, Yeong Mu Ko
Introduction Pure Ti and Ti-6Al-4V alloys widely used as dental implant materials because of its suitable mechanical properties and excellent biocompatibility[1-3].
In this respect, the material selection for a dental implant is critical and is based on its various required chemical and physical properties[7].
TiN is known to possess excellent mechanical properties, chemical stability and biocompatibility[8].
Such directional growth was apparent in the thin film that was coated by TiN, and the dense growth was possible in the coating because such growth direction can be changed by the factors of the deposition process including the temperature of substrate, the speed of deposition, and matrix [10].
The thickness can be controlled by time and the coating temperature, and greatly affected by the surface roughness.
Online since: March 2024
Authors: Alena Sicakova, Marek Kovac
Due to the nature of the aggregate, the mechanical properties may also be reduced [19, 20]
In Sun's research [5], samples prepared from natural aggregate and alkali-activated MK together with GBFS achieved better mechanical properties and water permeability than PCC.
Although fine aggregate causes a reduction in porosity, it also contributes to an increase in mechanical properties [25] and frost resistance.
Finally, the polymer dispersion was intended to improve mainly the mechanical properties of the concrete; it was used with CEM II/A-S 42.5 R as a 5% addition by weight.
Wu, Mechanical strengths and durability properties of permeable concretes with blended steel slag and natural aggregate, Journal of Cleaner Production, 271 (2020), 122590
Online since: September 2021
Authors: Yuri N. Khakimullin, Rezeda Yu. Galimzyanova, Maria S. Lisanevich
The efficiency of plasma-chemical treatment depends on several factors: on the type of plasma-forming gas, on the material used and its polymer composition, on the operating modes of the plasma installation 33-38.
Due to their presence, the absorbent properties of the material increase.
Physical properties of some commercial non-woven fabrics.
Spun bonding Technology and Fabric Properties: a Review.
Effects of Helium Atmospheric Pressure Plasma Treatment on Low-Stress Mechanical Properties of Polypropylene Nonwoven Fabrics.
Online since: July 2014
Authors: Hui Nong He, Zhang Wei Chen, Qiang Li Luan, Yu Chen
The control technology is based on the FRF estimation, whose accuracy affects the rapidity and stability of the control process.
FRF measurement is one of the factors that affect control effects, and system error is mainly from input and output measurement, such as noise interference and signal processing, such as leakage error.
Conclusions The precision of FRF estimation is one of the significant factors that affect multi-axis random tests control.
Dynamic Property of A Shaking Table Simulation Earthquake in Chinese.
Proceedings of the Institution of Mechanical Engineers, Part I:Journal of Systems and Control Engineering.Vol. 221(2007), p.423-444
Online since: July 2003
Authors: Anne Teughels, Guido De Roeck
In such a procedure the uncertain properties (e.g.
A dimensionless correction factor � � expresses the updated value of property �relative to its initial value � � �in element �: � � � � � � � � � � � � � � � � �� � � � � � � � � � (7) The correction factors can affect one element or may be assigned to an element group.
" is the stiffness matrix of the element (group) whose properties remain unchanged
Therefore, the distribution of the correction factors ( � � ) -which define on their turn the distribution of the updated physical properties �over the FE model- is approximated by combining a limited set of global damage functions * +[2].
For both properties a realistic damage pattern is identified with the updating method.
Online since: April 2013
Authors: Xiao Lu Guo, Hui Sheng Shi, Mao Song Lin, Wen Jing Dong
It benefits to reduce carbon emission and energy consumption, exhibits excellent physical and chemical properties and a diverse range of potential applications.
Lukey, The effect of composition and temperature on the properties of fly ash-and kaolinite-based geopolymers.
Williams, Influence of calcium compounds on the mechanical properties of fly ash geopolymer pastes.
Eklund, Factors affecting the suitability of fly ash as source material for geopolymers.
Online since: October 2015
Authors: Guo Kun Qu
To study such a process, molecular dynamics (MD) can provide the necessary insight into machining process and allows investigating local material properties and behaviors in detail.
As is well know, the workpiece material properties, the machined surface integrity and tool wear are affected significantly by temperature and local stress distribution.
Moreover, these factors have significant effect on the performance of system and hard to measure by experiment.
For the sake of comparing the simulation result with macroscopic thermo-mechanism properties, and suitable data average algorithm should be taken.
The thermostat atoms (next to fix atoms) are so far away that they can not affect the temperature of Newton atoms significantly.
Online since: August 2011
Authors: Gui Qiang Li, Shou De Wang, Ling Chao Lu, Chao Nan Yin
This new-type cement shows excellent mechanics properties.
The cement possesses the properties of Portland cement as well as that of rapid hydration and hardening, higher early age strength and smaller volume shrinkage of hardening [4-6].
Sintering temperature, sintering time and adding contents of C1.5Sr2.5A3 mineral were taken as the influencing factors of the orthogonal test [10].
Orthogonal test of the compressive strength was carried out in order to analyze the effect of various factors on the compressive strength.
Free CaO and Mechanical Properties Analysis.
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