Search results

One critical issue is achieving proper dispersion of fine clay particles to improve flow properties [18].
Core themes include optimizing mechanical properties, rheological performance, and hygrothermal efficiency.
A review of literature on precast earthen systems suggests that stabilizer content, curing humidity, and demolding time are critical factors [31], but SCEC-specific data is still lacking.
Core research themes include optimizing mechanical and rheological properties, enhancing hygrothermal performance, and evaluating environmental benefits.
Hydration and Mechanical Properties of Calcium Sulphoaluminate Cement Containing Calcium Carbonate and Gypsum under NaCl Solutions.

Magnetic properties and electrical characteristic of different winding geometries will be evaluated based on electric current supply of 3 to 5 Amperes to the inductor.
An accurate model of thermal conduction is not trivial as there are many governing factors that.
Changing of inductor magnetic field will affect its electrical storage and flux alternating performance [3].
The heat conduction within a conductor was shown to be dependant of its winding geometry, as different geometries have different thermal conduction rate, thereby affecting the thermal transition within an inductor.
It was also shown that an inductors winding geometry affects its magnetic behaviour.

However the mechanical property of the PVDF porous membrane prepared by wet phase inversion method is not satisfactory.
Membrane distillation has many desirable properties such as low energy consumption, ability to use low temperature heat, compactness, and perceivably more immunity to fouling than other membrane processes [3].
Scaling on membrane surface was a main factor resulting in membrane fouling in MD desalination.
The operation conditions, such as the concentration of feed solution, operation temperature and flow rate, would affect the speed of membrane fouling in MD process, among them the concentration of feed solution was the most important factor [7].
When the fabric support was finished with 2g/L FK-510, the composite membrane had better mechanical property and better fouling resistance.

The first type of material under development is a photocatalytically active admixture in powder form, allowing the preparation of concrete surfaces with photocatalytic properties.
The second type of material under development is a photocatalytically active cement admixture in powder form, allowing the preparation of concrete surfaces with photocatalytic properties.
During the second stage of the project a total of 36 various recipes for plasters and admixtures were proposed, and all 36 of the proposed materials were produced by BETOSAN s.r.o. at their Batelov plant, ready for tests of workability, physical and mechanical properties.
The individual recipes were subjected to experimental verification of their physical and mechanical properties and the results were compared with reference recipes.
The goal of the proposed experiment is to evaluate the effectiveness of antimicrobial (especially anti-algae) activity of the provided samples of photoactive plasters and concretes, “in situ”, in other words placed so that they will be exposed to the abiotic and biotic factors of a regular outdoor environment.

Life and property damage caused by fire every year is enormous.
The test conditions and other factors are also taken into account.
So there is unrecoverable damage in the beams which alters the microstructure of concrete beam, thus affects the macro-mechanical properties of concrete beam.

What’s more, if there is any accident, it may cause serious loss of life and property.
As above, these can be the important factors to affect the subsequent construction or even the development of UHV power grid.
Recent years, the security monitoring of construction site including safety management of construction, security of person, money and property, need to use high-tech means to enhance preparedness.
The resources at the construction site are various, including materials, vehicles, mechanical equipment, and constructors, etc.
Thus it can guarantee the security of person and property, and provide visual and comprehensive information of resources.

Introduction As the most important mechanical components, the axle box bearings are widely used in the train.
The bearing failures will lead to abnormal vibration and noise and may even lead to train accidents, causing great property losses and casualties.
It is good at dealing with nonlinear complex small samples as a result of its better generalization ability [5], but the classification accuracy of SVM is affected by the difficulty to select optimal parameters.
According to structural risk minimization principle, (6) is equivalent to the optimization problem (7) where is slack variable and C is error penalty factor.
In this paper, eighteen feature parameters are selected, including five dimensionless statistical parameters: Kurtosis Value, Crest Factor, Clearance Factor, Impulse Factor, Shape Factor; five frequency parameters: Centroid Frequency, Mean Square Frequency, Root Mean Square Frequency, Frequency Variance, Frequency Standard Variance; eight wavelet parameters: the eight band energy values by decomposing the signal with 3 level wavelet packet.

Building Physics Institute, Housing and National Research Center (HBRC), Egypt 2Al-Azhar University, Mechanical Engineering Department, Cairo, Egypt 3King Saud University, Department of Industrial Engineering, Riyadh, Kingdom of Saudi Arabia aayazaki1979@hotmail.com, bRamy.el.kady.18@azhar.edu.eg, ctamerkhalaf@azhar.edu.eg, dMelkady@aucegypt.edu, esayed_shebl@yahoo.com *corresponding author Keywords: Intumescent coatings, fire resistance rating, steel structure, NFPA 251, EN 13381.
A comparative study was conducted between NFPA 251 and EN 13381-8 to investigate the contribution of the difference in standard specification conditions in affecting the measured fire rating time.
The parameters which affect the test results are classified as follows: Controllable parameters · Temperature -Time Curve
As the two standards possess approximately the same time-temperature curves, the details/ instructions of thermocouples (numbers and locations) used for measuring steel temperatures have been selected as the main influencing factor.
[11] Jing Han Beh, Ming Chian Yew, Lip Huat Saw, Ming Kun Yew, Fire Resistance and Mechanical Properties of Intumescent Coating Using Novel BioAsh for Steel, Coatings 2020, 10, 1117; doi:10.3390/coatings10111117

Ao4, d 1Department of Tourism and Cuisine, Harbin University of Commerce, Harbin 150028, China 2School of Mechanical Engineering, Harbin University of Science and Technology, Harbin 150080, China 3School of Mechanical and Electrical Engineering, Harbin Institute of Technology, Harbin 150001, China apeiyinzhang@163.com, byu_ccna@163.com, cadai_ccna@163.com, daoyingjie@163.com Keywords: Tourism demand, Dynamic process, neural network, Abstract.
The parameters and are learning factors, called cognitive and social parameter respectively, and they are used to bias the particle’s search.
Many scholars have studied that the parameters is the key factors to affect the convergence of the PSO.
In particular, the adaptive mutation weight factor (AMWF) is determined as follows
The adaptive mutation weight factor (AMWF) is defined in Eq. (8) with = 1.2 and = 0.2.

Specifically, the glass powders based on Li2O-Al2O3-SiO2 (LAS) has been well-developed due to their great mechanical strength, thermal stability, and economical merits4-5) .
According to Frenkel equation7) , the main factors that contribute to densification by viscous flow are particle size, surface energy of particle and viscosity depending on the temperature: 3 0 ) )(8 3 1()(   rT t t g      (1) where ρ0 is initial density, ρg is glass density, γ is the surface energy of the glass particle, and η(T) is the viscosity at the temperature.
Therefore, the primary factor for the glass powder sintering is the viscosity which has severe decrement as the temperature increases.
Results and Discussion Glass properties.
For the heating rate of 10℃/min, the optimum sintering condition was 650℃ without crystal growth of β-spodumene which could affect densification, although nucleation or nano-crystal growth was occurred.