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The composition and the physicochemical properties of COG are analyzed.
Dalei Wu from Guangdong University of Technology compared the emission factors of LPG taxis and gasoline taxis.
Physicochemical properties of NG, LPG, COG and gasoline are showed in Table II.
Safety Safety performance of vehicle fuel is related to fuel properties directly.
According to the COG properties and the gas cylinders arranged on the roof, its security is better than other alter fuel vehicles.

PVA solutions can form physical gels from various types of solvents and these properties led to the use of PVA in a wide range of applications in medical, cosmetic, food, packaging industries and pharmaceuticals [15].
Physically, since closely correlated factors determine surface tension and viscosity, solution concentration is thus identified as one of the most effective variables for the control of fibre morphology as well as diameter of electrospun nanofibres, which is in agreement with the work of Reneker et al [10] and Zong,X.H [18], in other polymer systems, for example, poly (ethylene oxide).
Fibers of (PVA)/FeCl3 composite produced in the experiment are in fact magnetic: electrospun nanofibres were found to possess unique magnetic properties, when a permanent magnet is approaching, as demonstrated in Fig.5, with much enhanced coercivities relative to bulk materials.
With increasing solution concentration, the morphology was observed to transform from thin beaded fibres to smooth uniform structure; The spinning voltage, and also, albeit to a lesser extent, the collection distance, were both found to affect fibre diameter, both factors influence greatly fibres branching morphology.
The fibers with the flexibility can be produced, and their physical properties manipulated, making a highly commercially-viable product in the future.

Mangeron 67, OP-10, CP- 2000, Iasi 6600, Romania Keywords: DC conductivity; Water absorption; Diffusion; Cork, polymer properties.
Most applications of the cork are related with its cellular structure, which confers good thermal, acoustic and elastic properties.
This water produces significant modification of the electrical properties.
As it will be shown later, even after such a long drying time at room temperature, the sample still contains water that significantly affects the electrical properties of the material.
Conclusions The electrical properties of cork are significantly affected by absorbed and adsorbed water.

Modification of the lubricants improves tribological properties to varying degrees.
The wear of the friction pair is influenced by abundant factors.
This resulted in improvements in all the indicators of lubricating properties.
The tests on tribological properties of the C45 steel/210 CR12 steel friction pair (Fig. 8) confirmed the influence of the additive added during the use of the lubricant on these properties.
Adsorption and tribochemical reactions that accompany the process of friction affected the mechanical and chemical characteristics and introduced changes in the composition of the surface layer.

These excellent mechanical properties mainly arise from a martensitic transformation of metastable retained austenite under the influence of external tensile stress.
It was found that phosphorous addition improves the mechanical properties in TRIP steels when the content of phosphorous is larger than 0.07 wt.%.
Phosphorous promotes the retention of austenite as phosphorous enhances the matrix constraint affecting the bainitic transformation.
As the accuracy of the fraction from XRD measurement is significantly affected by the existence of texture and that from optical microscopy is influenced by various factors from etching techniques to phase identification, the magnetic method is regarded to give the most accurate results on the fraction [7].
As the interlath retained austenite is very stable during the tensile tests [1,5], phosphorous addition could be an effective measure to control the mechanical properties.

Therefore, the factors defined for Response Surface Method is shown in Table 2.
The temperature and pressure are selected as noise factors.
By setting the learning factors and which are larger than 4.0.
Two levels are defined for the control factors.
Therefore, the orthogonal array has two factors and two levels.

The mechanical analysis and the finite element analysis are done.
The square resistance uniformity between solar wafers is one of the key factors that affect the conversion efficiency.
The left of figure 4 shows the mechanical analysis model of single fulcrum cantilever beam.
Summary The stiffness of the paddle is a key factor for stability of the operation and efficiency in a new type of continuous diffusion furnace.
Simulation of the effect of power on the properties of Si-based films deposited by PECVD[J].

The hardness properties of laser modified TBC increased 15% of the as-sprayed sample.
These finding are significant to development of thermal barrier coating design optimization for enhanced surface properties of semi-solid forming die.
Porosity in coatings lead to low hardness properties thus caused degradation, and inefficient thermal insulation and corrosion protection of the TBC system.
While table 2, design of experiment developed for sample 1 and sample 2 to deposit top coat material with 3 factors variation.
Valente, Microstructure, mechanical properties and thermal shock resistance of plasma sprayed nanostructured zirconia coatings, Ceramics International, Volume 37, Issue 7, September 2011, Pages 2711-2717, ISSN 0272-8842

Weakness: The molded products internal stress caused by poor design problem. 3) POM (polyacetal) Properties: as the crystalline hot plasticity plastic, showed high melting point of 165 ~ 175 ℃, nature is the most close to the metal, generally referred to as tech Advantages: with high mechanical strength and rigidity, the highest fatigue strength, environmental resistance, good resistance to organic solvents, strong resistance to repeated impact, widely use temperature range (- 40 ℃ ~ 120 ℃) 6, excellent electrical properties, good resilience and self lubrication and good abrasion resistance, dimension stability Disadvantages: the thermal decomposition process if long time high temperature, no self-extinguishing, poor resistance to acid and forming shrinkage 4) PP (polypropylene) Properties: light plastic, density of 0.9 g/cm3 without preheating dry processing properties.
Demerits: nylon high hygroscopicity, size precision and the property affected for a long time. 6) PMMA (polynomial methacrylate Jacques plexiglass) Properties: amorphous polymer, 92% light transmittance, thermal denaturation temperature between 74 ~ 102 shrinkage rate between 0.4 and 0.7% 1.5 4mm thick.
Water resistance, drug resistance, electrical properties, excellent soft (LDPE).
Beijing: mechanical industry publishing house, 2004.246-296
Factors influencing the plastic electroplating plastic process analysis.

The glass nature has importance on the time constancy of mechanical, electrical and chemical properties of reinforced thermoplastic material.
Glass containing metal oxides is used in certain proportions in order to improve the mechanical properties, in particular elastic modulus.
Tests carried out have had the purpose of determining the influence of the main factors affecting the friction in the case of thermoplastic material reinforced with glass fibres/ metal couplings.
Frictional Properties of Polyethylene, Wear 19(1): 37-52 (1973)
Zhang, Tribological properties of epoxy-nanocomposites: 2.