Search results

And the mechanical demolition makes it difficult to keep waste bricks in good shape to recycle as building block.
And improved use of RCA in asphalt pavement is unattainable without the thorough understanding of some of the basic material properties like the specific gravity.
Nevertheless, it is believed that, in combination with the virgin aggregate (VA), the VA-RCA aggregate blend will possess adequate properties for asphalt mixture.
And these measured properties are within the acceptable recommended limits [16].
Apart from economic and technical factors, concerns over the recycling of C&D wastes in asphalt pavement also come from their potential of causing environmental burdens in road structures, such as run-off pollutants and leaching [30, 31].

Working temperature of the 2D layered materials can be varied as they possess very high surface area and it vastly affected by the heat treatment during the synthesis process in terms of structure and properties [134].
It was found that, the Fermi level pinning of MXenes was strongly affected by the surface chemistry and the increased in the work function (due to O-termination) then modulates the electronic/transport properties [152].
Rasool et al. [213] first investigated the antibacterial properties of Ti3C2Tx MXene.
Zhou, In situ reaction synthesis, electrical and thermal, and mechanical properties of Nb4AlC3, Journal of the American Ceramic Society 91 (2008) 2258-2263
Han, Characteristics of Ti3C2X–Chitosan Films with Enhanced Mechanical Properties, Frontiers in Energy Research 4 (2017) 41

Research on Fuzzy-PID Control for a Tension System of Rotary Magnetorheological Damper Liyong Hu1,a and Aliang Chen1,b 1The Faculty of mechanical engineering ＆ mechanics, Ningbo University, Ningbo, China, 315211 a huliyong@nbu.edu.cn, bcal08@163.com Keywords: Tension control, MRF damper, Fuzzy-PID control Abstract.
When the excitation current applied to the coil changes, the magnetic field produced as well as the rheological property of the MRF will change correspondingly [9].
Based on this le ft h o u s in g rig h t h o u s in g M R F d riv in g s h a ft d a m p in g p la te e x c ita tio n c o il s e a l rin g Fig.2 Structure of MRF damper 0 3 6 9 12 15 0 0.3 0.6 0.9 1.2 1.5 current of excitation (A) o utput torque(N·m) Fig.3 Relation between damping torque and excitation rheological property, the output damping torque of the MRF dampers can be controlled to meet the requirement of tension control.
In wire winding process, the mechanical device can only fulfill the function of wire winding, but the quality of products depends substantially on the effectiveness of the tension control system.
If the relaxing reel and the receiving reel run at the same rotational speed, the major factor affecting the tension variation is the output torque of the MRF dampers.

Essentially, ideal BTE is the one mimicking native bone morphology and thus it is a common notion to use combination of porous scaffold, growth factor, and stem cells in order to obtain the regeneration ability of bone graft.
Thus, it is hypothesized that collagen fiber alignment could affect nucleation and growth of ice crystals and further affect the subsequent formed porosity.
Different viscosity of these two samples thus affecting the movement path of HMCP.
It is hypothesized that HMCP movement could align collagen fiber and thus affecting the subsequent formation of pores.
[6] Yunoki, S., et al., Control of pore structure and mechanical property in hydroxyapatite/collagen composite using unidirectional ice growth, Materials Letters 60.8 (2006) 999-1002

Introduction With the development of automation technology, the equipments are affected by various factors and the faults are also more and more complex.
Setting the range of inertia weights and learning factors
(5) Updating inertia weight and learning factors, and keeping them within the scope of their respective set.
Firstly vibration signal is decomposed by EMD method to extract the margin factors.
And finally a set of data is chosen to test the model property and performance of the diagnosis system.

Introduction Lithium-ion-conducting inorganic oxides are expected to find important applications in lithium-ion devices such as all-solid-state and thin-film batteries because of their high chemical stability and mechanical strength.
However, the development of such ionic devices requires clarity on the ionic conduction mechanism in solids and nanoscale control over the device structure and physical properties.
Therefore, we believe that studying the physical properties of non-rare- or less-rare-earth materials is also important.
(1) Ionic conduction in LSO thin-films is affected by the hetero-interface. [12-15] (2) The temperature dependence of ionic conductivity of as-prepared LSO thin-films on sapphire substrate in the initial heating process shows irreversible behaviour.[16] We conclude that the irreversible conductivity behaviour may be caused by the generation of nanocrystals in the LSO thin-film.
Here, N denotes the number density of the carrier, Ze denotes the charge of the carrier, a denotes the hopping distance, Γ0 indicates the attempt frequency, Δ denotes the activation energy, and f denotes a correlation factor whose value is approximately 1.

The important role of collagen is to maintain mechanical properties of tissue and to act as an insoluble signal for cell communication.
According to previous results, methylcellulose affected collagen fibril organization.
Yang, L.J.Kaufman, Rheology and confocal reflectance microscopy as probes of mechanical properties and structure during collagen and collagen/hyaluronan self-assembly.
Yu, Properties of biodegradable thermoplastic pea starch/carboxymethyl cellulose and pea starch/microcrystalline cellulose composites.
Pietrucha, Effect of fish collagen modification on its thermal and rheological properties.

There are hundreds of commercial copper and copper alloys; each one of them has its own corrosion properties and its own applications.
The other purpose of adding chromium in these alloys is to improve the mechanical properties [1].
Chromium could be used to some extent while the use of the other used alloying elements did not improve the corrosion properties of this alloy.
Conclusion The corrosion behavior of copper- Nickel alloys in marine environments depend on many factors such as the amounts of sulphur, CO2, chlorine, flow velocity, temperature and on the type of alloying elements which is added to the alloy itself.
Gampbell, “The Compromise Between Mechanical Properties and Corrosion Resistance in Copper and Aluminum Alloys for Marine Applications”, Ocean Engineering, 1, 1969, pp. 387-393

The property of material is shown in table.2.
Fiber Reinforced Plastic Structure Design Composite structure was fabricated by filament wound[±α,90º]helical/hoop construction, fiber/epoxy laminates using T800 graphite fiber and Kevlar 49 fiber hybrids laminates, hybrid fiber laminates have significantly better impact properties than laminates reinforced with only carbon fiber types, with higher toughness Kevlar 49 fiber hybrids, carbon fiber laminates brittle problem was solved[2].
The protective cover protect L376-COPV under the worst credible mechanical impact, it is fabricated by S2 glass fiber filament, the thickness of protective cover is 1mm.
The closed die forming operation was used to remove liner weld bead convexity, heat treatment operation was used to recover materials properties in the welds and to alleviate residual stresses in the weld and heat affected zone.
Performance factor for this COPV is 23Km.

Improving formability in SPIF processes through high speed rotating tool: experimental and numerical analysis Gianluca Buffa1, a, Davide Campanella1,b , Rossano Mirabile1,c and Livan Fratini1,d 1Dept. of Chemical, Management, Computer Science and Mechanical Engineering, University of Palermo,Viale delle Scienze, 90128 Palermo, Italy agianluca.buffa@unipa.it, bdavide.campanella@unipa.it, crossanomirabile@libero.it, dlivan.fratini@unipa.it Keywords: Incremental forming, aluminum alloys, FEM Abstract.
In this way the development of lightweight constructions is becoming a key factor and advanced production technologies have to be developed to be competitive for this evolution.
In order to understand the actual effect of the conferred heat flow on the mechanical properties of the sheets, flow stress curves were derived by both in house experiments and literature data.
Fig. 5 confirms the feature of “localized application of strain” which distinguishes SPIF: any material point is not affected by the deformation imposed in the bordering area, but undergoes its total strain through progressive increments of small entity.
The numerical simulations confirmed that the tool rotation does not affect the accumulated strain.