Search results

Properties of steel cords are therefore crucial for overall strength of belts, if they are damaged, it may cause catastrophic failure of the whole conveyor.
Several factors cause belts exposure to the risk of damage.
These include: properties of transported materials (sharp edges of ore lumps), the impact of environmental factors (rain, snow, wide temperature range) and load variations inside belts due to non-stationarity of load stream.
Often cords are worn due to environmental factors (corrosion due to rain and moisture).
It should be underlined that one should take care about experiment because there are many factors that can affect acquired signals and further processing might not be successful.

A study of ore-controlling factors and metallogenic mechanism of lead-zinc deposit in LuZiYuan, Zhenkang, Yunnan Changliang Lv1, a, Mingguo Deng1,b and Lei Zeng1,c 1.Faculty of land resource engineering Kunming university of science and technology Kunming 650000 ,china a149300864@qq.com, bbamboolv727@163.com, c657441108@qq.com Keywords: Lron-lead-zinc polymetallic deposit in LuZiYuan, wall-rock alteration,ore-controlling structure, source of ore-forming material.
Affected by regional tectonic movement, fold and fault develop, mainly in Zhengkang anticlinorium and NE, NW faulted structure.
The angular gravel has a certain property of tenso-shear by roundness, and the cements are in directional alignment.
Conclusions Based on based on the analysis of the geological characteristics of deposits, the paper analyzed the main factors controlling mineralization and the spatial occurrence regularity of ore body from the macroscopic and microscopic, this paper, and draws the following conclusions: Ore body is mainly produced from carbonate rocks and chlorite quartz schist in Shahechang group in upper Cambrian.
A tentative analysis of The orecontrolling factor of the Luziyuan lead-Zinc deposit in Zhenkang area,Yunnan[J].Geological Bulletin of China,2001,30(7):1137-1146 (In Chinese)

The studied fabric properties are the thermal behaviour, the air and water vapour permeabilities and drape.
This study comprises correlations among the above fabric properties and the search of fabric structural characteristics that negatively affect comfort.
For the first two situations, there is the contribution of mechanical and aesthetical properties, while, to warrant well being there are the called “comfort properties” that influence the behaviour of fabrics.
Explanation equations for comfort properties.
With these equations and manipulating the most relevant variables that explain the corresponding comfort properties (table 2.) optimisation of fabric comfort properties as a function of its use can be done.

A Feasible Speed Profile Model for Automatic Train Protection System Guodong Teng 1, a, Shunding Hu2, b * 1Hangzhou Institute of Service Engineering, Hangzhou Normal University, Hangzhou, 311121, China 2 United Mechanical & Electrical Co.
By reference to this model, we present a feasible speed model which is simplified as three phases, and consider practical factors, such as the maximum acceleration at each phase, the worst gradient, traction and braking force of the train, etc.
To simplify the model, it is assumed that the train continues to decelerate with the maximum braking force, which will not affect the safety of system.
To the convenience of calculation, here we adopt the worst gradient, which will not affect the safety of system. 3) : The time of B phase, which is a time configuration parameter of train
As future work, more practical factors will be considered, and the practical factors may affect the safety of our speed profile model.

To simulate the simulation, there are several factors and parameters need to be considered so that the defects could be avoided due to the excellent and poor formability will be linked between the fabricated samples in Aniform and the manufactured products.
Introduction Fairings, flight control surfaces, landing gear doors, leading and trailing edge panels on the wing and stabilizer, interior components are the examples of composite utilization in aircraft [1] while the uses of Polyphenylene Sulfide, PPS has attracted much attention in the past several decades due to outstanding thermal stability, superior toughness, inherent flame resistance, excellent chemical resistance, high mechanical strength, dimensional stability and also good in electrical properties [2].
In another word, author [13] mentioned the temperature history has to be modeled first by two approach of integration thermal equilibrium and staggered approach has to be conducted on mechanical and thermal equilibrium where the characterization melt over wide temperature range has been addressed to characterize on inter-ply friction, intra-ply shear and bending.
This might due to, defects may not only affected by drapability and deformability of composite at certain temperature, but auxiliary equipment like tensioners, stamping speed, shape of mold with curvature, orientations of composite may also contribute to the formation wrinkles, stress and also ununiform thickness variation of geometry during the thermoforming process [14].
Summary PPS would be used for the thermoforming process at its processing temperature of 320°C within the range 2 MPa to 4 MPa on its pressure under thermoforming pressure based on the consideration of glass transition temperature and melting temperature on the thermoplastic property under the hot-pressed machine.

The study of ultrasonic properties like ultrasonic velocity, adiabatic compressibility, acoustical impedance and relaxation time of any biofuel determines its usage as potential biofuel [1].
At lower temperatures of pour point, dynamic viscosity of biodiesel increases with a decrease in temperature, which might be a sign to poor, cold flow properties of biodiesel [4].
Understanding the rheological properties with the processing is necessary to optimize the equipment and product quality.
Low-temperature Properties of Biodiesel: Rheological Behaviour and Crystallization Morphology.
Biodiesel production, properties, and feedstocks.

For example, hybrid membranes able to combine the properties of different materials are proposed.
Today, new hybrid membranes able to combine the properties of different materials are proposed.
Therefore, pre-treatment selection and condensate handling are critical decision factors for a proper operation of GS modules [[]Bernardo P., Drioli E., Golemme G., Ind.
Mixed matrix membranes are a well-known route to enhance the properties of polymeric membranes (Figure 1-(D)).
Table 3 highlights a comparison among the properties of these three types of membrane.

In case of comparison with plain concrete and structural properties, it is possible to increase the load carrying capacity of the structure by 14%.
Where specific properties such as good thermal insulation properties or refractoriness are required, the selection of individual raw materials is crucial.
Aluminous cement shows the best high temperature resistance properties.
This characteristic can significantly affect the rheology of fresh concrete and the strength of the concrete.
[11] Hager, I., Behavior of high performance concretes at high temperature – evolution of mechanical properties, PhD thesis (in french), Ecole Nationale des Ponts et Chaussées, november 2004, 182 p.

During its entire lifetime, bone is able to adapt its internal microstructure and, subsequently, mechanical properties to the varying mechanical and physiological environments in a process which is commonly known as bone remodeling [1].
A BMU in which osteoclasts and osteoblasts workin sequence to absorb dead bone and generate new bone. [2] As mentioned above, bone tissue is able to adapt its internal microstructure and mechanical properties to the external (mechanical and electrical environments [5-7], electromagnetic field [8,9], etc) and internal factor (microdamage [10]).
Firstly, the initial material properties are assumed and boundary condition loading is applied.
Finally, the bone remodeling enters the formation period from day 30 to day 110, in which the mechanical properties and microstructure gradually restore to the initial situation with the new bone deposit.
Human physiology damage-repair cycle and damage factor [28] is considered in the algorithm too.

Both the migration activation enthalpy and the pre-exponential mobility factor were found to increase with rising impurity concentration.
Besides the applied stress grain boundaries experience also a curvature driving force for their displacement, which can even be affected by triple junctions.
Therefore, grain boundary properties, particularly with respect to their response to an applied stress, are most appropriately studied on specific boundaries with exactly defined geometry in specially grown bicrystals.
Misorientation dependence of measured (points) and calculated (lines) coupling factors for the investigated <100> symmetrical tilt grain boundaries.
Both the migration activation enthalpy and the pre-exponential mobility factor increase with rising impurity concentration.