Search results

Meanwhile, many research stated that physical and chemical properties (density, calorific value, viscosity, surface tension, etc) of biodiesel are similar with routine diesel.
Physical and chemical properties of biodiesel According to literature, biomass fast pyrolysis can convert biomass into liquid products with yields as high as 80% based on dry feed uses [1], while yielded high poduct of bio-oil exceed to 70 wt%.
Table 1 is the comparison of chemical and physical properties of them.
Owing to low blending ratio of biodiesel, B20 and B40 are affected to a small extent by decreasing of volume LHV.
There are three chief factors influencing NOx emissions of diesel engine, level of oxygen, temperature, and duration of hyperthermia.

For reinforced concrete structures are concerned, its mechanical performances are affected by many factors, such as reinforcement diameter, spacing, position, concrete cover thickness, geometric shape and boundary condition.
But these conclusions are lack enough test verifications, analysis data for various mechanical performance of large-size flexural members is rarely.
Mechanical properties of different size components are analyzed, including bearing capacity, ductility and deformation composition.
It can be concluded that: size effect of strength due to concrete material properties will be limited.
Mechanical properties of different size components are analyzed, including bearing capacity, ductility and so on, and verifying the safety to calculation formula in code for ultimate bearing capacity of flexural members.

Design and Implementation of Container Terminal 3D Simulation Model Repository HouJun Lu1, 2, a, HuiQiang Zhen1 and Daofang Chang2, b 1 College of Mechanical Engineering, Tongji University, Shanghai, China, 200092 2 Container Supply Chain Engineering Research Center, SHMTU, Shanghai, China, 201306 asmulhj@126.com, bsmucdf@126.com Keywords: Container terminal, Simulation Model, function, Framework, Classification Abstract. 3D visualization simulation is the important research method of port logistic production system, whereas the lack of uniform standard and interface of 3D simulation model, it is very difficult to share the simulation model resource, and which caused modeling repeatedly and developing efficiency lowly.
Container terminal 3D simulation model repository should be considered as the key factor of solving the problems of developing low-efficiency and model no reuse of logistic system.
Introduction As the important hub of container transportation, container terminal’s operation efficiency affects the whole service level of container supply chain logistic system directly.
It is an abstractive description of one object of logistic system in real world, always represents the multi-level information of simulation objects, which includes properties, geometric information, physic information and so on.

Therefore, the lateral stiffness value is an important factor to test the quality of the tubular conveyor belt.
The lateral stiffness of the circular tube belt is an important indicator, which directly affects the overall performance and service life of conveyor belt, and also is the key to the formation of a rigid circular tube and pipe properties. [3] (1) If lateral stiffness is too large, it is difficult to form circular pipe.
The whole structure is a hexagonal and single motor driving mode , and the six point synchronous action can be achieved through the special mechanical driving.

Analysis of mechanical property was 7d unconfined compressive strength, at the same dose of cement, the strength of vibration was higher than the static pressure method’s and it was more rational and effective for the field control of the construction.
Table 1 Physical and tensile properties of stone SiO2 Content /% Crush Value /% Flakiness Content /% Apparent Density /kg•m-3 Bulk Dentity /kg•m-3 Water Absorption /% 54.3 19.7 8.4 2670 1380 2.3 Table 2 Mixture gradation of cement stabilized gravel Sieve Pore/mm 26.5 19 9.5 4.75 2.36 0.6 0.075 Required Gradation Range/% 96~100 65~75 44~54 24~31 14~22 8~11 0~3 Designed Gradation/% 97.8 74.1 50.2 29.3 18.3 8.8 1.5 Test Program.
So this didn’t produce free motion, therefore much of aggregate brokered, the original good gradation changed(Fig.4) and affect the display in the Inlay squeezing effect.
Test Study on Dry Shrinkage Deformation Properties of Cement-stabilized Macadam Base Course Materials [J].Journal of Highway and Transportation Research and Development,2006,(23):27-32
[4] HU Li-qun, SHA Ai-min, Research on Influence Factor in Semi-rigid Base Course Material Temperature Shrinkage Coefficient Test Using Strain Gauge [J].

This way could transform the complex optical displacement problem to the simple mechanical displacement problem.
According to this property, it’s not difficult to determine the image coordinates.
We should introduce (-1)n as a factor in the transmission.
The reticle fretting could directly affect correction effect.
Conclusion Stability of sighting directly affects the tank fighting force.

Nanocrystalline pure nickel (nc-Ni) was produced by pulse electrodeposition and its superplastic properties at and above room temperature were investigated.
Introduction Over the past decades, nanocrystalline materials have draw considerable attentions due to their superior physical and mechanical properties, such as high yield and fracture strengths, superior wear resistance and enhanced superplasticity at relatively low temperatures, compared to their microcrystalline counterparts [1�2].
In most cases, electrodeposition serves as an effective method to yield a modulated grain size and porosity-free finished product by adjust chemical and physical parameters, which affect nucleation and grain growth during electrocrystallization.
The main characteristic of superplasticity was known to relate to grain growth, it is very necessary to discuss the influencing factors during the deformation.
Fig.5 (b) and (c) was obtained under the same time but under static annealing and superplastic deformation of 100%, it is suggested that temperature affects the grain growth more obviously than strain at the beginning of superplastic deformation.

Previous research shows that PV system efficiency depends on factors such as installation angle, shading, and local climate. [5], [6].
CUF takes into consideration factors like system inefficiencies and fluctuations in solar irradiance.
Pearson’s correlation coefficient was employed to assess the relationship between solar radiation and energy generation [3], while regression analysis was used to examine how environmental factors affect system performance [15].
A lower CUF than the maximum installed capacity is often due to frequent rain or cloudy conditions in tropical areas, affecting solar radiation intensity throughout the day or year.
Perovskite Solar Cells (PSC) have garnered attention due to their remarkable optoelectronic properties, including long carrier lifetimes and high absorption coefficients, making them ideal candidates for bifacial designs [40].

The development of concrete properties such as strength and impermeability depends on the hydration of cement.
The temperature and moisture content in the concrete are main factors directly influencing concrete strength and durability, the temperature and relative humidity in a natural climate environment are important factors influencing fresh concrete.
The main physical properties are shown in Table 1.
The main physical properties of fly ash and blast furnace slag are shown in Table 2.
The test procedure was followed GB/T50081-2002 Standard for test method of mechanical properties on ordinary concrete

As a result of stress concentration caused by the notches, failure mechanism is bond to be affected.
Through more than 1000 dates of 24 groups of various kinds of concrete cube compressive strength and splitting tensile strength statistical tests in the recent years by our project group, the article has analyzed the statistical characteristics of basic strength of concrete and its influencing factors.
Inspecting Weibull distribution and analyzing its statistical parameters by experimental tests are important work to judge the brittleness property and the size effect law. 2．Weibull theory of statistical strength and size effect Weibull statistical theory[1] is usually for brittle material’s failure.
Table 1 Groups of Statistics Tests Batch Material properties and group list Age (d) Molding and curing Strength sorts FAC FRC NC LWC 1 2 2 2 28d vibrate，standard curing fcu 2 4 2 90d，365d fcu 3 8 4 56d，200d rod，outdoor curing fcu,fts Table 2 Concrete Mix Proportion Batch Mix No.　
[18] Raúl Cruz Hidalgo And Holguín, Kuba, Statistical Failure Properties of Fiber Reinforced Composites, Institut für Computeranwendungen 1 der Universität Stuttgart 2003.