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Fabrication and Measurement of Flexible Polymer Aerogel and Factors Affecting its Thermal Conductivity Jiazhen Wang1,a, Jing Du1,b and Yunbo Wang2,c* 1Nanjing Foreign Language School, 30 East Beijing Road, 210008, China 2Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, CA90095, United States ahhhwjz2@outlook.com, bdu_j@nfls.com.cn, cyunbo0527@g.ucla.edu Keywords: Polymer Aerogel, Sol-Gel Technique, Ambient Drying, SEM Abstract.
The analysis based on SEM pictures shows that PVC type and concentration would greatly influence aerogel’s structure thus affecting its thermal conductivity.
The material chosen for the aerogel is one of the most critical factors, and we choose PVC for the following reasons: l First, PVC is commonly used, cheap, safe, and has excellent mechanical properties.
Experiment Design Fifteen control groups are set up to study how the concentration of the PVC-DMF solutions and characteristics of PVC powders affect the aerogel's properties.
Thermal properties of organic and inorganic aerogels 1994 Journal of Materials Research, 9(03), 731–738

Dispersion of the Steel Structure and its Effect on Magnetic and Mechanical Properties of Steel Roman A.
Often, for operational control of mechanical properties, magnetic parameters are used such as, for example, the coercive force.
Both mechanical and magnetic properties of steel are associated precisely with the structure of the material.
One of the main properties to which stringent requirements must be imposed are mechanical properties of the material, which determine its service life.
This connection can be used to develop a non-destructive method for monitoring the mechanical properties of steel.

Influence of the Temperature on the Mechanical Properties and Fracture Surfaces of 93WNiFe Alloy yingge xu School of Mechanical and Electrical Engineering, Xi’an University of Architecture and Technology,Xi’an 710055,China; 11087266@qq.com Keywords: 93WNiFe alloy; Mechanical Properties; Fracture surfaces Abstract:The effect of temperature on the mechanical properties and fracture surfaces of 93WNiFe alloy was investigated in tension with temperature ranges from 10 to 900 degrees.
It is widely used in military science field, and it is manufactured the penetrators as the main materials at home and abroad because of a series of excellent mechanical properties, corrosion resistance and absorption ability of radioactivity substance.
The study of temperature how to affect the mechanical properties and fracture surfaces of 93WNiFe alloy was investigated in tension test with temperature ranges from 10 to 900 degrees.
This experiment tried to find out the reason that is the mechanical properties influenced by the temperature and the deformation of tungsten pellet and matrix.
(a) 10 ℃ (b) 200 ℃ (c) 500 ℃ (d) 700 ℃ Fig.2 Fracture surface of 93WNiFe alloy at different temperature The Ultimate strength of tungsten alloy(δb) is influenced by the following factors in relative microcosmic[5]: bonding phase strength(δM), tungsten particles cleavage strength(δW), tungsten particles and bonding phase release strength(δW-M), tungsten-tungsten particle separation strength(δW-W).

There are many factors which can affect the mechanical properties of interface .Targeted research about effect anti-slide pile design parameters act on the contact stress is carried out in this paper.
And the mechanical properties analysis of the contact surface between the anti-slide pile and soil is the premise to solve the interaction problem between anti-slide pile and soil.
(3) Research of the interface element constitutive model [3, 4]; (4) Research of contact surface mechanical properties [5, 6].
Research Status of Interface Mechanical Properties between Pile and Soil.
Experimental study of mechanical properties of interface between pile and macadam soil in accumulative landslide in three gorges reservoirarea.

Fig.1 Specimen Fig.2 Mold Fig.3 Electronic Balance Thickness and Density of the Coating Measurement Thickness of the coating is assurance for internal quality of the coating, it directly affects the corrosion properties, stress and service life.
Hardness and elastic modulus of the material are most commonly used performance indicators in the mechanical properties.
Micron indenter test is an advanced technology to measure the mechanical properties of the materials surface, it uses micro-micron sharp indenter pressed into the coating surface, and real-time record the curve of pressure head relationship between stress and pressure deep, the mechanical properties of the material can be measured through this curve.
The method of determining contact stiffness approach is based on the slope of unloading curve, it can only get the maximum indentation at the mechanical properties.
There is plastic deformation during the measurement process, plastic deformation process corresponds to dislocation slip, micro-crack growth, and the local stress under great pressure head, these factors have impacts on the measurement results.

Cure and mechanical properties of natural rubber filled bacterial cellulose Chaiwute Vudjung Laboratory of Advanced Polymer and Rubber Materials (LAPRM) Department of Chemistry, Faculty of Science, Ubon Ratchathani University, Ubon Ratchathani, 34190 Thailand Email: chaiwute2110@gmail.com, scchaivu@ubu.ac.th Keywords: Natural rubber, Bacterial cellulose, Cure properties, Mechanical Properties Abstract.
Introduction Rubbers can’t be used in pure form due to their low mechanical properties.
The objective of this work was to study the cure and mechanical properties of NR filled BC with various amounts of BC.
Their cure and mechanical properties were characterized by Oscillating Disk Rheometer (ODR) and mechanical tests.
The effect of BC loading on mechanical properties of vulcanizates The influence of BC content on the mechanical properties of vulcanized natural rubber was investigated.

With the online adjustment of scaling factors of quantization factors and proportion factor of fuzzy controller, quantization factors and proportion factor are changed indirectly.
With the designed Adaptive-Fuzzy-Smith Algorithm, the effect of mechanical property, time-delay, is well compensated.
Time-delay and nonlinear are main factors affecting the stability of boiler combustion process.
The effect of mechanical property, time-delay, is improved.
Mechanical Properties and Mathematical Model of Boiler Combustion Temperature System Boiler combustion system mainly includes the transmission process of fuel, fuel combustion process and formation of steam.

Research on Transverse Prestress Mechanical Properties Experiment of PC Box Girder Yi Zheng, Jianzhang Chen, Kechao Zhang Research Institute of Highway, MOT, Beiing, 100088, China Key Laboratory of Bridge Detection & Reinforcement Technology, Beiing, 100088, China National Engineering Laborary for Bridge Structure Safety Technology, Beijing 10088, China y.zheng@rioh.cn Key words: PC box girder, transverse prestress, steel wire, experiment, mechanical properties Abstract.
In view of the PC box girder transverse prestress tendon, the factors and the development of tension prestress performance affecting factors were analyzed.
Steel wire itself properties including yield strength, ultimate strength, relaxation properties, anchor performance mainly reflects the anchorage performance of steel wire under load [2]。
Through special processing, steel wire material including cold treatment, heat treatment can achieve higher mechanical properties [3].
Mechanical properties of steel wire with the tension time test and analysis. 2 hours after loading the relaxation steel wire, will gradually ease.

Effect of Corrosion on Mechanical Properties of Rebar HRB335 Ying Wang, Ping Li a Department of Civil Engineering, Luoyang Institute of Science and Technology, Luoyang 471023, China aeappol@163.com Key Words: Rebar HRB335, Corrosion behavior, Corrosion rate, Mechanical properties Abstract: The corrosion behavior of rebar HRB335 in simulated concrete pore solution (3.5 wt.% NaCl solution) and the tensile mechanical properties before and after corrosion were investigated.
The research on rebar corrosion and its effect on the mechanical properties of rebar are increasing [7-10].
The cylindrical samples (Φ14mm×450mm) are used for corrosion rate measuring and mechanical properties tests.
These will affect the strength properties of reinforcing bar.
Maybe the effect of stress concentration on each strength property is not familiar, or there can be other affecting factors.

Detection of mechanical properties enables the assessment of possible replacement of commercial manufacture with the DMLS manufacture.
On the basis of the ASTM F1717 standards providing the essentials for the comparison of mechanical properties of spinal systems, twenty mechanical compression tests were carried out.
Mechanical properties of both bilateral systems in compression are comparable.
K. ; Ebraheim, N.A; Biyani, A; Rengachary,S; Faizan,A (2005): Role of mechanical factors in the evaluation of pedicle screw type spinal fixation devices.
K. ; Ebraheim, N.A; Biyani, A; Rengachary,S; Faizan,A: Role of mechanical factors in the evaluation of pedicle screw type spinal fixation devices.