Search results

Therefore, factors affecting the effect of viscosity of polymer include solid content, molecular weight and degree of hydrolysis and insolubles content, coefficient of screen mesh, filter factor, and other important parameters, combined with the experience conclusion[4] :reservoir pore radius median 5 times greater than the radius of polymer molecule cyclotron, blocking phenomenon will not occur.
Table 1 Polymer physics and chemistry performance test results The name of the polymer APP5 KYPAM HDSJ Solid content（%） 90.1 89.56 91.3 The molecular weight（104） 1200 3000 2500 Degree of hydrolysis（%） 18.2 23.2 25.1 Insolubles content（%） 0.15 0.0992 0.01 Screen mesh coefficient 18.37 53.2 25.6 The filter factor >1.5 >1.5 >1.5 Polymer solution viscosity adaptability In conveying manifold, well spacing, perforation and other mechanical shear and formation of minerals, biochemistry, oxygen degradation under the influence of factors such as[5], the viscosity of experience formula is: (1) In the type: :The ground polymer solution viscosity, mPa•s; :Underground oil viscosity, mPa•s; :Conveying manifold, well spacing, perforation caused by mechanical shear viscosity of polymer solution loss percentage
The salt resistance of the polymer solution Polymer solution after being injected reservoir, not only affected by the reservoir temperature, but also by the degradation of calcium and magnesium ions, bacteria, and oxygen.
Conclusions (1) Due to the specific conditions of low temperature and high salinity in the volga-ural basin reservoir, the single polymer were affected by the formation of minerals and biodegradable, causing serious loss of polymer solution viscosity and it can not meet the requirement of the theory
Compatibility of polymer molecular weight and core permeability properties, pore throat radius and polymer molecular thread whirling radius ratio [J].

Department of Mechanical Engineering, National Central University, Taoyuan 320, Taiwan (R.O.C.) 2.
However, the plasma location and substrate temperature were not major factors affecting a-Si:H film uniformity in ECR-CVD process.
Due to the particular properties of magnetized plasma, however, the uniformity of plasma was not completely equal to the deposition uniformity.
The result indicated the resonance position wouldn’t affect meaningfully the uniformity of a-Si:H deposition.
However, the plasma location and substrate temperature were not major factors affecting a-Si:H film uniformity in ECR-CVD process.

The dynamic cutting force will change in the cutting process by a variety of factors, causing the change of relative position between the tool and workpiece, which in turn would affect the dynamic cutting force.
When the separable elliptic ultrasonic vibration is applied to the cutting process, the machining processes generate separation characteristics, variable cutting speed characteristics, variable cutting depth (thickness) properties, and variable cutting angles and reverse radial cutting force characteristics [3].
(10) Where (11) The essence of M（s）is introducing the impact of elliptical ultrasonic vibration on cutting process, which affects the transfer function of machining system by changing the cutting process.
The separable elliptic ultrasonic vibration cutting has separation characteristics, variable cutting speed characteristics, variable cutting depth (thickness) properties, and variable cutting angles and reverses radial cutting force characteristics.
Study on the mechanical property of the elliptic ultrasonic vibration cutting process.

It has high technological, physical and mechanical properties and meets modern requirements of Russian regulatory documentation; 3.
The value of molecular weight and flexibility of the macromolecules significantly affect behavior of polymers at mechanical failure 5.
The mechanical properties of polymeric adhesives have a large the effect of the degree of branching of chain molecules References [1] M.A.
Kuleznёv, Structure and mechanical properties of polymers: studies, manual for schools, Higher School, 2002, p. 320
Claver, M.C., Baer, Fracture and mechanical properties of polymers, 22(2005), J.

Introduction In electronic packaging, one of the decisive factors of the successful soldering is the formation of intermetallic compound (IMC) between the solder and the substrate [1,5].
A new lead-free composite solder of Sn-0.7Cu/1.0-Si3N4 was chosen in this study because of its good in mechanical properties and give better joining properties compared to other solders [2].
Nevertheless, the investigation of solid-state interfacial IMC formation and mechanical properties of lead-free composite solder remains insufficient for electronic packaging industries [7].
This phenomenon is believed to be the key factors for the decreasing of IMC thickness at 150°C of aging temperature.
In this study, the presence of 1.0wt.% of Si3N4 in the Sn-0.7Cu has retarded the growth formation of IMCs during aging process and is believed may gives better joining properties of Sn-0.7Cu and Cu substrate [2].

The binderless chipboards’ thickness, density, and flexural properties were investigated.
Among this, coconut fiber has been studied and shows potential as raw material to produce furniture or building materials due to its fibers’s excellent thermal, physical and mechanical properties.
Rahman, Experimental study on the fabrication and mechanical properties of medium-density particleboards from coconut coir.
Sato, Manufacture and mechanical properties of binderless boards from kenaf core, J.
Niemz, Effect of high temperature on the change in color, dimensional stability and mechanical properties of stability and mechanical properties of spruce wood, Holzforschung. 57 (2003) 539-546

The door structure parts include positioning plate, door panel, door inner shell and foam layer etc., their mechanical properties such as strength, stiffness are impossible to match completely.
Mechanical Properties of Refrigerator Door Materials.
The mechanical properties of these materials [4] are list in Tab. 1.
In order to reduce computed time, the door is simplified under the condition of un-affecting calculated results precision.
Improvement Program for Warping Ends of Refrigerator Door So many factors are involved and resulted in ends warping of door.

Introduction At the core of any solid materials processing technology is a series of specific chemical or physical processes affecting on the processing object.
The development of combined methods of parts processing (CPM) implies the union or combination of several inhomogeneous processes, allowing to obtain a part with improved properties [1].
The CFE planning matrix of this type has the following properties: symmetry, normalization, orthogonally, and ratability for a linear model.
For the eight solutions given above, replicas 1…6 include three factors, and replicas 7 and 8 four factors each.
Saushkina, Physical and mechanical methods in the production of gas turbine engines, Moscow, 2002

If lightweight is required, it would be essential to use structural materials with low density, so that the launching cost and structural mass can be reduced. 2) Requirements on mechanical properties.
The manufacturing process properties will directly affect structural material performance.
The Properties and Application of Metal Materials.
Meanwhile, such factors as environmental tolerance and manufacturing process properties will also be taken into consideration.
Other materials Higher earth-observation precision is needed for high-resolution remote sensing satellites, while micro vibration of structure is the major factor affecting the observation precision.

The effect of Y2O3 on physical, mechanical and structural properties of glasses have been investigated using different characterization techniques.
According to [5], the hardness values obtained by micro-indentation rely mainly on the strength of the bond, atomic packing density and other factors.
BaO-Ga203-GeO2 glasses with enhanced properties.
Physical Properties of Lithium Containing Cadmium.
Structural properties of Zinc Lithium borate glass.