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The less demanding strategy consists in the evaluation of effectiveness factors with the Thiele modulus.
This model is mathematically described by Eq. (8) and considers the whole washcoat layer as a continuum medium whose transport properties are described through averaged (effective) properties.
The comparison between the predicted effectiveness factors and the effectiveness factors reported in the reference [17] is presented in Fig. 4.
Table 3 – Geometrical and thermophysical properties of the honeycomb reactor.
O’Connel: The Properties of Gases and Liquids (McGraw-Hill, New York 2001)

Morphology and Structure Properties of PEG-b-PBT, PEG-b-PBT-HA Nanofibers Based Gas-electrospun Xiaozhan Yang 1, a, Zhensheng Li 2,b* , Jining Gao 2 and Lilong Zhang 2 1 Chongqing University of Technology, Chongqing 400054, China, 2 Third Military Medical University, Chongqing, 400054, China aemail: xiaozhan0107@126.com, bemail: li.zhensheng@163.com, * Corresponding author: Zhensheng Li Keywords: Gas-electrospun, Tissue engineering, Fibrous membranes, HA, PEG-b-PBT.
A block copolymer, PEG-b-PBT possesses advantages of excellent mechanical property, degradability and biocompatibility, which are unique for making scaffold materials.
Thermal properties of PEG-b-PBT fibrous membranes were determined by means of DSC.
Moreover, the different percentage contents of PBT will affect the Tg and Tm of the copolymers.
Apparently, the content of hard segment in the PEG-b-PBT copolymer is the dominant factor in determining the average diameter.

A Fuzzy PID Control method for the Grasping Force of an Underactuated Prosthetic Hand Qun-ming LI 1,a, Ya-ping LV2,b,* 1 School of Mechanical and Electrical Engineering, Central South University, Changsha, China 2 School of Mechanical and Electrical Engineering, Central South University, Changsha, China aliqm@mail.csu.edu.cn, bwslyp525@sohu.com Keywords: Prosthetic hand, Fuzzy, PID control, Grasping force.
With a conventional PID control, nonlinear dynamic and modeling error of prosthetic hand highly affect the control performance, causing deviation of desired force and slow response.
The initial parameters of the PID controller affect the performance of control systems.
Step response for Ziegler-Nichols PID tuning Fuzzy logic system design.In practice, the PID adjustment parameters are obtained by the following equations (9) where, , and are the scaling factor,, and are the parameters obtained from the fuzzy logic system is shown in Fig.4.
In this research, the rules designed are based on the characteristic of underactuated prosthetic hand such as slow response, non-linearity, large uncertainties existing in underactuated prosthetic hand systems, disturbances and properties of the PID controller.

Textiles can make use of all the advantages of nanomaterials and bring more high-value properties while maintaining the properties of the initial material [2].
The light wavelength and intensity are effective factors in the obtained photocatalytic of TiO2 nanoparticles.
Ali, Coating of ZnO nanoparticle on cotton fabric to create a functional textile with enhanced mechanical properties, Polymers 13(16) (2021) 2701
Huang, Mechanical properties of waste cotton and their changes during early pyrolysis, Journal of analytical and applied pyrolysis 149(104855) (2020)
Huang, Mechanical properties of waste cotton and their changes during early pyrolysis, Journal of Analytical and Applied Pyrolysis 149 (2020) 104855.

Solubility and biological properties of these calcium phosphate materials depend strongly on crystal size, ionic impurities, specific surface area and both macroporosity and microporosity [10].
All these parameters have a specific influence on bioceramics final mechanical properties too [8].
However, in spite of these optimal properties, CPCs have limitations due to their poor mechanical properties comparing to bone and their low in vivo biodegradation.
This kind of injectable suspension is ready-to-use, but has no initial mechanical properties.
Because of their powerful chelating properties towards cations, BPs form polymeric aggregates with calcium in biological systems.

As a result, these changes and defects affect the resulting physical and mechanical properties of the concrete, such as the bulk density, thermal conductivity and compressive strength [4].
The use of computed tomography (CT) for checking and monitoring aerated concrete properties provides the possibility to identify macroscopic defects and to propose solutions for their elimination.
Another limiting factor is related to the size of a scanned object, where a larger object has poor resolution on CT scan [5].
FAST-S-17-3874: “Unique analytical methods for assessing the relationship between properties and structure of building materials based on alternative raw materials“.
Ding, Effect of the Ca-to-Si ratio on the properties of autoclaved aerated concrete containing coal fly ash from circulating fluidized bed combustion boiler, In Constr.

The peculiarities of the ESP dust properties and the possibility of its removal by the leaching method were studied along with the recycling of red mud in our researches [2, 3].
Scandium is the most strategic element because of its unique properties offering to the science-technological society.
Introduction of scandium and yttrium in alloys greatly improves their mechanical properties [14].
The factors evaluated for optimization of leaching parameters were time, temperature and solid to liquid ratio.
The curvatures of plots indicate the interaction between the factors.

PLA has a low glass transition temperature and these properties change with the physical aging time [6-8].
Several factors influence the rate of this change, such as the chemical structure and the thermal history of the polymer.
The aging temperature changes the characteristics cited above, but we have several factors, which influence the glass transition temperature, such as the aging time.
Scandola, Thermal properties and physical ageing of poly (l-lactic acid) Polymer 33 (1992)2699 - 2703 [7] S.
Amidon, Influence of physical Aging on Mechanical Properties of polymer Free Films:The prediction of Long-Term Aging effects on the Water Permeability and dissolution Rate of Polymer Film-Coeted Tablets Pharmaceutical Research, 8, 12, (1991) 1500-1504 [11] G.

One is to describe the design objectives as the main and supplementary functions and three main characteristics of the product; the other is to plan the objectives out of the 5 basic design factors.
The working parameters and state will be affected and changed by the internal and external factors of the equipment and thus the optimal operating condition can’t be obtained.
(4) Intelligent monitoring and diagnosis of mechanical faults All kinds of faults could happen in the working process, and that is unavoidable in the period of product design because some factors can’t be estimated accurately.
It is unavoidable that fault could happen for most mechanical equipments.
Using the technology, the unreasonable working status and influence factors can be found, then the corresponding availability measures should be taken, and work efficiency could be improved

Many technological challenges are open to fully exploit the material properties.
When the radius of the proposed structure is lower than tens of nanometers, a very accurate description of the channel mobility is mandatory [2], therefore the MLDA model is used to model the channel electron density by quantum mechanical equations [3].
Assuming that the oxide spacer among the pillar has a constant thickness, the current density per unit of area of the device scales down by a constant geometrical factor.
The pillar radius affects the on-state performances, and an optimal Ron is achieved with a pillar radius of 200 nm, with RON=5 mΩ.
Finally, the BV of the proposed device is strongly affected by the SiC/OX interface traps concentration.