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The clamp band system is a typical locked and separated device of the launch vehicle (LV) / the spacecraft (SC), and its release-separation process is one of the important factors that affect the LV/SC separation movement.
Tan[6,7] used plate element model to analyze the dynamic properties of the launch vehicle and spacecraft (LV/SC) separation system and the influence of component failure.
We also discuss the effect of various factors involved in the dynamic envelope of the clamp band.
Fig.4 Envelope of the clamp band Fig.5 Radial displacement curves of V1-V7 Analysis of critical factors effect on dynamic envelope.
The characteristics of clamp bond dynamic envelope are studied by changing four critical factors during separation.

To achieve this goal various protocols including root surface conditioning, guided tissue regeneration, implantation of bone biomaterials and growth and differentiation factors have been proposed as stand alone therapies or in various combinations [1].
Recently, various kinds of cement have been developed, which can be used in many different ways to improve the mechanical and structural properties.
Especially, calcium aluminate cement and high alumina cement were developed in the early 19 th century and have been used widely in various architectures, due to their superior physical and chemical properties [2].
The setting time and mechanical properties were adjusted, by regulating the amount of C3A(3CaO Al2O3) and CA2(CaO 2Al2O3) [3].
In the present study, calcium aluminate bony cement incorporating LiF-maleic acid was developed, which had a fast setting time(within 60 mins), a low exothermic temperature(below 47 c) and appropriate mechanical properties for the grafting of bony defects, in order to observe, histologically, the effect of periodontal tissue regeneration in 1-wall bony defects in beagle dogs.

The strength and stiffness of the chassis directly affect the performance of the machine and the safety of dynamic compaction.
Fig. 2 the finite element model According to the structural shape and mechanical properties, select the appropriate type of element to simulate the reality [5].
Shape function is a major factor in the results of solving.
(8) Where n is the strength safety factor which associated with the load combination categories.
Beermann: The analysis of commercial vehicle structures, Mechanical Engineering Publication Limited, 1989: 53

Mechanical integrity of the electrical properties of the transformation success. 2) the easier issues first, after the first global local Determine the transformation step, the whole electrical part of the transformation should be divided into several sub-systems, such as numerical control systems, measurement systems, spindle, feed systems, control panels and strong electric parts, etc., until the basic shape of the system after the completion of the whole interconnected system work.
Stop the cycle of transformation, according to the actual situation to determine, given the tension of the production factors, personnel skills, preparation for the full extent of the size and complexity of the new system, even including the weather conditions.
After acceptance of the machine mechanical properties and overall mechanical repair and maintenance of transformation, the machine should meet the requirements of the mechanical properties, geometric accuracy should be within the limits prescribed.
References [1] Mechanical Industry Press, machine tool design handbook, Beijing Mechanical Industry Press, 1992 [2] Bi Chengen, editor of the small building is the modern CNC machine tools.
Beijing: Mechanical Industry Press, .1991 [3] Xu Shuhua.

The key factor affecting the temperature distribution and uniform deformation of the workpiece is die chilling during the extrusion process.
In fact, can and insulating materials contribute greatly to temperature uniformities, and they are also key factors affecting flow uniformity of the workpiece during extrusion process.
Thermo-mechanical coupled analysis and experimental validation.
The shear friction factor, m, was assumed to be 0.3.
Boyer: Materials Properties Handbook: Titanium Alloys (ASM, Metal Park, OH, 1994) 17.

Analysis of Basic Properties and Comprehensive Utilization of the Hot Braised Slag Fucai Zhao, Jiantao Ju, Jielong Liao, Weiming Kong, Yaojun Dang College of Metallurgical Engineering, Xi’an University of Architecture and Technology, Xi’an 710055,Shaanxi,China zhaofucai@126.com Keywords: hot braised slag；basic properties；comprehensive utilization Abstract.
When the grinding time reaches to 15 minutes, content of slagwhich size less than 200 meshes is bigger, has reached 63.3%, the main factors influencing the stage grinding fineness is the internal structure of steel slag.
When the grinding time reaches to 30 minutes, the ratio of grinding fineness can reach to -200 of only reached 84.2%, main influencing factors of this stage is the size and content of metallic iron.
The hot brasied slag containing large metal iron particles which affect its grindability.
Analysis of Physicochemical and Mineralogical Properties of Converter Slag[J].

Introduction With regards to their biological and physicochemical properties, titanium-based biomaterials have been successfully used in orthopaedic, dental and maxillo-facial surgery mainly as endosseous implants.
Clinical success has been achieved not only because of mechanical strength excellent biocompatibility of titanium alloys but also because of other characteristics such as surface properties.
Among them, surface roughness is one of the most acknowledged properties improving the bone anchorage of titanium implants [1-3], or to prepare implant surfaces for plasma spray Hydroxyapatite HA coating [4].
Discussion Surface Roughness is one of the key factors for the osseous integration of orthopaedic and dental titanium implants.
This sandblasting procedure has been proven to cause a contamination of implant surface which can have unfavourable affects on its bone integration [5].

As a conclusion, RBD palm olein has better performance properties in terms of friction reduction (coefficient of friction) and wear resistance (anti-wear properties) at low and high speed.
In this experiment, the constant load 10N and different sliding speeds which are predictable to affect the friction and wear characteristics were considered.
Generally, larger wear scars on the surface it shows that it produce more wear and also another factor such as a lubricant.
Acknowledgement The authors wish to thank the Faculty of Mechanical Engineering at the Universiti Teknologi Malaysia for their support and cooperation during this study.
[4] M.A.Maleque,H.H.Masjuki,A.S.M.A.Haseeb,Effect of mechanical factors on tribological properties of palm oil methyl eser blended lubricant,Wear 239 (2000) 117-25

Because the growth process of SiC single crystal by physical vapor transport is a solid-gas-solid process, the stable generation and supply of gas components in the growth chamber, and the precise control of Si/C ratio in the gas components are the key factors affecting the growth quality of SiC single crystal.
The intrinsic SiC single crystal exhibits semi-insulating properties due to wide band gap.
Hopkins, Physical vapor transport growth and properties of SiC monocrystals of 4H polytype, Phys.
Wu, Factors Affecting the Graphitization Behavior of the Powder Source during Seeded Sublimation Growth of SiC Bulk Crystal, J.
Chen, Factors Affecting the Formation of Misoriented Domains in 6H-SiC Single Crystals Grown by PVT Method.

The mechanical properties of cemented carbide substantially depend on its composition and WC particle size.
Their mechanical properties can be modified over a broad range by changing the content of the binding Co phase and the WC grain size [6].
A reduction of the WC grain size, on the other hand, increases the hardness and improves other mechanical properties [7,8].
The nominal chemical composition and some physical as well as mechanical properties for all these tool materials used in the tests are listed in Table 1.
Tool life is the most basic and primary indicators to determine the advantages and disadvantages of cutting tool material performance, it is mainly achieved through the tool wear test data, in general, many factors affect the tool wear, cutting speed is the most significant factor affecting cutting tool wear and tool life after the workpiece, the tool material and tool geometry were selected [16], therefore, all turning tests were carried out on a conventional lathe equipped CA6140 with stepless speed change device and a main power P=7.5KW as well as a maximum number of revolutions n=1460 min－1, continuous dry cylindrical cutting.