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Online since: November 2014
Authors: Ruslizam Daud, Azizul Mohamad, Hong Tee Toh, Mohd Shukry Abdul Majid, Nasrul Amri Mohd Amin
Two major factors affecting wind turbine performance are wind speed and aerodynamic design.
Previous studies concluded that wind speed and aerodynamic design are major factors effecting electrical power output.
For example, HAWT is greatly depends on the rotor radius and incoming wind speed, and the rotor height position will not affect much in the power output capabilities.
Among others, torque, mechanical stress, and aerodynamic aspects should be taken into consideration in tip speed ratio selection [12].
Research by Ming Qiu and his team [16] focused on the three dimensional flow field by increasing the impact of accuracy on the simulation factors.
Online since: January 2013
Authors: Zhe Fu Li, Pei Ning Duan, Xiang Xin Xue, Ang Tian, Shu Xian Li, Zheng Shuai Yin
Shielding properties of the composites against thermal and Cf-252 fast neutron were measured.
Factors affecting the shielding properties were investigated.
It can be seen that with increasing boron mole numbers per unit volume, the qualities of two factors increased accordingly.
Cf-252 fast neutron shielding properties.
The fast neutron shielding properties of four samples are shown in Fig.8.
Online since: January 2006
Authors: Toshiji Mukai, Hidetoshi Somekawa
Introduction A number of magnesium alloys have been shown to exhibit excellent mechanical properties, such as high specific strength at room temperature and superplasticity at elevated temperatures [1-4].
In case of application to a structural material, it is important to examine the mechanical properties on magnesium alloys whether satisfied with both reliability and safety or not.
In addition, since magnesium is hexagonal close-packed (HCP) structure, the basal texture affects the mechanical properties, strength and/or elongation-to-failure, at room temperature [10-15].
The fracture toughness in magnesium alloy is also affected to the texture distribution [16,17].
Therefore, the grain refinement is considered to be one of the improvement methods for mechanical properties [19,20].
Online since: October 2011
Authors: Ting Liang Guo, Hui Xia Zhang, Hong Juan Dai
In this paper, introduces the ideal of green design and the technology of green manufacture in the process of ship building; analyzes the factors those impact the implement of the ideal of green design and the technology in the process of ship building.
Not only can it affect the economic indexes such as the ship loading capacity, speed, energy consumption, but also radically affects the safety of the ship performance.
When choosing marine equipment, designers should emphatically consider three factors such as low energy consumption, low pollution and high efficiency.
Should choose green coating with the properties of no pollution, saving energy resources, provincial energy such as water-borne coatings, powder coatings and radiation curable coating etc[5].
The Major Factors to Influence Green Ship Design Manufacture Although advanced ideas about green ship design manufacture have become a consensus in shipping manufacture, the concrete implementation of green ship design manufacture is still less than satisfactory.
Online since: October 2012
Authors: De Hong Zhuang
Combining the factors of human and object in the design, this paper puts forward the safety design methods of electromechanical products, including designing the reliable products system, preventing incorrect operation design, creating the safety and pleasant interaction mode and the color and so on.
As industrial designers, we should try our best to avoid the unsafe factors relating to mechanism in our design.
The Safety of Electromechanical Products The safety of the electromechanical devices refers to the situation in which people are physically and psychologically protected from extraneous factors while using the devices.
To achieve man-machine overall safety by considering the human physiological and psychological factors and product function from the angle of human engineering product safety design.
Electromechanical products should be designed based on the ergonomic principles; it is with the person this, full consideration of physiological and psychological factors, to reduce as far as possible to the physical and mental burden of aggravating factors, the guarantor to safe, comfortable operation, the maximum limit to reduce the working intensity and tense, fear, and reducing human error, guarantee the safety.
Online since: April 2015
Authors: Magdalena Szutkowska, Daniel Toboła, Kazimierz Czechowski
These mechanical properties were determined: Vickers hardness HV1, Young’s modulus, tensile strength, fracture toughness and wear resistance.
Mechanical and physical properties of diamond matrix composites with 10wt% Ti3(Si,Ge)C2 and 30wt%Ti3SiC2 bonding phases.
Vol.2 Materials and Properties.
Physical properties.
Mechanical properties of monolithic ceramics at room temperature.
Online since: October 2022
Authors: Mala M. Sharma, Timothy J. Eden, Francis L. Wolff, Victor K. Champagne
Predicting the deformation and resultant properties helps in developing process parameters and tailoring coatings to get the desired properties.
The process can be used to build up thick layers of material with very little porosity, high bond strength, and good mechanical properties [1-2].
Several of these properties are affected by the amount of deformation the particles undergo during deposition.
Other factors that affect deposition and particle deformation include the particle temperature, tensile strength, and degree of work hardening.
Chen, Measuring the plastic properties of bulk materials by single indentation test, Scr.
Online since: November 2018
Authors: Hiren M. Gajera, Komal G. Dave, Veera P. Darji
Moreover, the conventional machines unable to provide complexity and superior mechanical properties in die or parts.
The mechanical properties of DMLS made parts are not fully rely on material utilized; they are also affected by the process parameters.
They have concluded relative density and mechanical properties are obtained at lower scan speed and layer thickness.
DImitrov, “The achievable mechanical properties of SLM produced Maraging Steel 300 components,” Rapid Prototyp.
Van Humbeeck, “Microstructure and mechanical properties of selective laser melted 18Ni-300 steel,” in Physics Procedia, 2011
Online since: May 2011
Authors: Galina Kashevarova, Alexandra Zobacheva, Ivan Leschev
“Crack” is the formation of an infinitesimal element of the medium zone with low mechanical properties as a result of damage accumulation.
Taking into account the homogeneity of the soil base we made the assumption that the local changes in soil properties appeared as a result of a technological problem - a water leak.
Engineering and geological surveys have shown changes in the properties of soil under and near the building.
In modeling the properties of the soil due to local wetting was suggested that soaking the area in depth have the shape of a hyperbolic paraboloid.
The evaluation of various factors on the formation of explosive clouds and the magnitude of excess pressure was done.
Online since: May 2011
Authors: Bei Hai He, Li Hong Zhao, Jian Rong Hu
Theoretically, the presence of anionic substances in the water used for preparing cationic polyelectrolytes has been shown to be the most detrimental factor to its efficiency.
Different from the behavior when CPAM was dissolved with white water, the retention efficiency of the dual retention aids system was affected significantly by the white water used for the preparation of bentonite.
It was indicated that the fixing function of PEI was not affected by the impurities in white water, then it is possible to use purified white water to prepare PEI. 4-a.
The flocculation function of bentonite in dual retention aids system was significantly affected by the white water used for its preparation, the fines and filler retention efficiency was decreased significantly.
Effect of Dissolved and Colloidal Substances on Drainage Properties of Mechanical Pulp Suspensions.
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