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On the other hand, the particle packing of ceramic powders has always been deserving attention due to its influence in the subsequent stages of the ceramic processing, especially on the density on sintering, as well as in the microstructure and mechanical properties of the final ceramic product.
There are important other factors that affect the packing characteristics in a simultaneous way, such as particle size distribution, particle shape, friction between particles, lubrication, presence of agglomerates and surface chemistry [4,5].
Bouvard: International Journal of Mechanical Sciences Vol. 46 (2004) p. 907

The dynamics of the steel strip was affected by temperature of continuing anneal furnace, stain of the steel strip, variations in steel strip thickness , material, properties, variations in tension, misaligned rollers ,twisting and wrinkling, and variation edge.
These factors or parameters are strongly coupled, time varying and with uncertainties.
The main property of the NN used here is the function approximation property.
Further study will be done on the convergence properties of this observer using Lyapunov method or energy balance foundation will be employed to analyze the error how approximate to zero.
Schrijver and J. van Dijk,“ Disturbance observers for rigid mechanical systems: Equivalence, stability, and design,” ASME Journal of Dynamics Systems,Measurement, and Control, vol. 124, no. 4, pp. 539-548, 2002

There are many aspects that affect the accuracy and precision of machining or operation performance [4-6].
These performances can be achieved thanks to their exceptionally high properties in term of stiffness-to-weight ratio and low density with good shear and fracture strength.
Table 2 shows a comparison between properties of MT structure conventional materials and synthetic granite materials.
Material properties of Cast iron vs.
Thermal properties and behaviours of the multifunctional material prototypes have been investigated experimentally.

Introduction Occupational health and safety management is series of activities by the manager for occupational health and safety work to plan, organize, command, coordinate, control, and improve.The purpose is to guarantee personal and property safety in production and business operation activities, and to promote the production run smoothly.As a high-risk industry, occupational disease incidence cases of construction industry were reported in the third place of the national industry in 2007 and 2008 form the ministry of health, the workers who are actual contact to occupational hazards of the country's are close to 40% ,more importantly ,there are many different kinds of occupational-disease-inductive factors of the construction industry,which are also complex and almost cover all types of occupational-disease-inductive factors.The diversification of the construction site results in the variability of occupational disease hazards, while the current construction enterprises are very
The status quo of construction industry occupational health and safety 1.1 The occupational health status A survey shows that[1] the number of people who contact with the occupational harmful factors,occupational disease patients, and the new happening and the death toll is the highest around the world in our country , also the construction industry is one of the most intensive industries of work-related injuries and occupational disease , and migrant workers are the main vulnerable groups.
Pneumoconiosis, occupational poisoning and noise deafness are main health hazards of occupational disease.At the same time,due t to other factors, their mental health is also affected in some degree. 1.1.1 Construction workers with high proportion of various kinds of physical diseases Owing to the serious working environment outside [2], the lack of effective protective measures and long-term heavy physical work with unhealthy lifestyle, the migrant workers have to contact with solid particles floating in the air and toxic chemicals in building materials in a long term, there are a lot of workers who suffer from chronic rhinitis, hepatitis B, respiratory disease, rheumatism, arthritis and other diseases; Because the labor market supply exceeds demand, the laborer are unable to take care of their body just for supporting a family, and they have to accommodate the poor working conditions,what's more,they're afraid of healthy check-up as they would be fired after detecting a disease, losing
The occupational health and safety license system and the system of occupational safety and health audits are adopted gradually,safety regulators be included in the daily supervision of the enterprise, whether occupational health and safety license will serve as a precondition of administrative license review. 3.4Self health and safety management by workers According to the survey, the workers in accordance with the requirements have been wearing personal protective equipment proportion is low, only accounts for 55.30% of the number of occupational exposure, which may relate to evaluation standard, also shows that some of the workers has not yet formed the norm of the occupational disease prevention concept and good behavior.So we should further strengthen standardization operation education for enterprise employees ,to reduce or eliminate the damage of the harmful factors of occupational for health.
Master's Thesis of Tianjin University 2010 [4] Cao Shuping: The Present Situation and Prospects of China's Construction Safety.Chinese Journal of Safety Science 1995 [5] Luo Senlin:Construction Present Situation and The Thinking of The Occupational Health and Safety Management of The Company.Construction Safety 2010 [6] Dong Rui:Based on The Construction Site Safety Management Evaluation of The Risk Analysis and Countermeasures [D].Master's Thesis of Tianjin University 2006 [7] Lin Tong:Introduction to The Cconstruction Site Safety Management [J].China's New Technology and New Products 2012 [8] Xu Yin,Xu Liangwen,Yu Hongjie,Liu Jieting,and Chong Yan:Occupational Exposure Workers Health Self Management Behavior and Its Influencing Factors Analysis [J].Health Research 2011

Design & Optimization of Die Body for Polymer Extrusion Torekhan Saparov1,a, Ualikhan Belgibay1,b, Dichuan Zhang1,c, Dongming Wei1,d, Chen-Nan Sun2,e, Almagul Mentbayeva1,f and Asma Perveen1,g 1Department of Mechanical & Aerospace Engineering, Nazarbayev University, Nur-Sultan city, Kazakhstan 2Singapore Institute of Manufacturing Technology, A*STAR, 73 Nanyang Drive, Singapore 637662, Singapore atorekhan.saparov@nu.edu.kz, bualikhan.belgibay@nu.edu.kz, cdichuan.zhang@nu.edu.kz, ddongming.wei@nu.edu.kz, ecnsun@simtech.a-star.edu.sg falmagul.mentbayeva@nu.edu.kz, gasma.perveen@nu.edu.kz Keywords: Polypropylene, Polymer, Die body, Viscosity, Uniform flow Abstract.
Besides, the vast amount of the variables and interactions that affect the flow characteristics would make the work tedious and sophisticated.
Simulation in COMSOL Software Polypropylene material properties are given below [5]: Thermal conductivity = 0.2 W/(m·K); Density = 496.57236 kg/m³; Heat capacity at constant pressure = 1920 J/(kg·K) Dynamic viscosity was calculated based on Power law as follows: μ=m(γ)n-1 γ=max2S:S, γmin, S=12[∇u+∇uT] Where fluid consistency coefficient m = 7.5e3 kg/(m*s); Flow behavior index n=0.38; Lowest shear rate limit γmin=0.01 s-1 [6].
Simulation properties are as follows: Flow rate = 3*10-6 m3/s, Upstream temperature = 230 ° C, Wall temperature = 110 ° C (b) (a) Fig. 3 Temperature of existing design (a) and in proposed design (b) (surface view).
Die Body Deformation Material for extrusion die is AISI Type A2 Tool Steel is used and it has the following properties: Elastic Modulus 2.03*1011 N/m2, Poisson's Ratio 0.285, Yield Strength 1430662139 N/m2, Thermal Expansion Coefficient 1.1*10-5 1/K, Mass Density 7859.99 kg/m3, Hardening Factor 0.85.

Introduction During the service life, the performance degradation of asphalt pavement due to being affected by several factors such as light, rainwater, oxygen, among them, asphalt aging caused by ultraviolet irradiation is one of the important factors [1-3].
Analyzing equation (2) by means of basic mathematical analysis, it can be concluded that the changing properties of asphalt can be presented by.If the test time t approaching infinity ,the expression represents the determinant of the property of asphalt , in addition ,the expression m is the change rate of asphalt performance as has been determined.
Influence of Ultraviolet Aging on Mechanical Behavior and Aggregated State of Asphalt.
Discussion on Factors Effecting Ultraviolet Aging Test of Asphalt.
Analysis of Asphalt Photooxidation Aging Property Under Intensive Ultraviolet .

It should be noted that protective properties of Cr2O3 are increasingly reduced at temperatures above 1000°C and high flow rates of gas in oxidizing atmospheres, because of the accelerated transformation of Cr2O3 to volatile CrO3 [3].
In comparison to chromia, SiO2 and Al2O3 sustain their protective properties also at the temperatures beyond 1000°C.
Numerous investigations on Co-based alloys have shown that CoO does not provide protective properties at high-temperature [6].
The addition of C to the ternary alloy Co-17Re-xCr was done in order to improve the mechanical properties, particularly the creep behaviour [8].
An approximate diffusion analysis showed that bulk alloy properties are not affected by the silicon, and it was concluded that silicon has its effect at the alloy surface by promoting Cr2O3 nucleation.

Introduction Isothermal extrusion has great significance on improving the microstructure and properties uniformity of extrusion product as well as the production efficiency [1].
The heat transfer coefficients during casting or heat treatment process are affected by material properties, cooling medium properties, initial temperature, cooling time and other factors.
The thermal physical properties of AA7075 such as coefficient of thermal conductivity λ and specific heat capacity c were set as constant, and the radiation heat transfer was transformed into convective heat transfer form.
The surface heat transfer coefficient h is mainly affected by initial temperature T0, surface temperature T and fluid velocity v, when the surface state, the surface shape and size, the fluid properties and fluid temperature are same.
Chen, ANSYS 10.0 thermodynamic finite element analysis instance tutorial, Mechanical Industry Press, Beijing, 2007

Rigid acceleration curve has the jump property in the beginning and end, as shown on the left-hand side of figure 3, which makes driving force change abruptly and produce impact and oscillations to the system.
By macro program (CUST_832), flowcharts are shown in figure 4, a variety of parameters and functions that affect the processing can judge, correct and select by itself.
parameters MAX_PATH_JERK 100 100 50 30 CURV_EFFECT_ON_PATH_ACCEL 0 0.65 0.6 0.5 CURV_EFFECT_ON_PATH_JERK 0 0 100 80 PREPDYN_SMOOTHING_FACTOR 1 1 1 1 PREPDYN_SMOOTHING_ON 0 1 1 1 MAX_ACCEL_OVL_FACTOR 1.2 1.2 1.2 1.2 MA_MAX_AX_JERK 100 100 20 20 PATH_TRANS_JERK_LIM 100 100 20 20 Energy-saving Solutions Application.
Zhang: Chinese Jounal of Mechanical Engineering, Vol. 46 (2010) No.12, pp. 106-117.
Liu and Q.L.Wang: Energy Efficiency Acquisition Method for Electro-mechanical Main Driving System during the Service Process of Machine Tools, Vol. 48 (2012) No.23，pp. 112-117.

As shown in Fig.1: Fig.1 The hybrid structure assembly Analysis of the assembly process of complex product The characteristics of the assembly process of complex product are as follows: 1) During the assembly process, the species of quality control points which affect the final quality characteristics of product are various and the number is onerous. 2) There are mutual complex and dynamic, nonlinear interaction among the quality control points which distribute in the assembly process.
Two types of sets in the assembly process were defined from the perspective of the formation process of assembly qualities. 1) The set of quality attributes: Quality attributes are quality characteristics, which are formed by the coupling relationships of several quality factors in the assembly process and directly ensure a certain function of the final product, this kind of quality characteristics collection constitutes the set of quality attributes. 2) The set of quality control points: It shows the set of assembly essentials participating in the formation process of product quality attributes but quality control points are unable to meet individually a certain product function.
The correlation-model which describes the process of the formation process of the axial interference is shown in Fig .5 Through analyzing the product structure and design plan, the mapping relations from the structure domain to the quality domain was established, then divided the quality domain into the quality control point set and the quality property set.The correlation-model between the quality control points and the quality attributes was built.
RESEARCH ON THE MATCHING METHOD TO ASSEMBLE THE MECHANICAL PRODUCT WITH HIGHY PRECISE COOPERAT- ION.Chinese Journal of Mechanical Engineering.VOL 40 (2004),pp165-168
Study on Selective Assembly Method and Application of Mechanical Products in Modern Manufacturing Environment[thesis].