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When too much learning material is exposed in a classroom, learners’ retention will be negatively affected.
‘Time-to-competency’ is a major factor of determining competitiveness of all companies.
Georgia Institute of Technology Digital Signal Processing, Mechanical Engineering University of Illinois Online, Urbana Expert Systems, Microelectronic Processing, etc.
In e-Learning, knowledge which is an intellectual property is placed on the Internet and can be accessed by individual learners.

A wide variety of morphologies was realized in nano-sized ZnO, which contributed to its unique properties.
However, there is a great difference in the surface properties of their facets.
Chiolerio, Nanostructured ZnO materials: Synthesis, properties and applications, in: B.
Zauscher (Eds.), Handbook of Nanomaterials Properties, Springer, Berlin–Heidelberg, 2014, pp.137-177
Logsdail, A computational study of the properties of low- and high-index Pd, Cu and Zn surfaces, Phys.

Impacts of Different Pile Parameters on Stress and Settlement of Composite Foundation Ying CUI 1,2 a, Junhai ZHAO 1,b and Shanshan SUN 1,c 1 School of Civil Engineering Chang’an University, Xi’an 710061, China 2 School of Mechanical Engineering Xi’an Shiyou University, Xi’an 710065, China acuiying126@163.com, bzhaojh@chd.edu.cn, csunjin1986123@163.com Key words: Oil Storage Tank; Composite Foundation; Pile Parameter ; FEM Model; ANSYS Procedure Abstract.
And with simulating the status of composite foundation under the working load, the project properties of composite foundation are investigated.
However, the differential settlement is the most important factor that affects the safety of oil tank.

The application of the fluid conveying pipe includes the appropriate determination of the vibration properties of the fluid conveying system such as natural frequency, stability, and critical flow velocity.
A time dependent viscosity factor was introduced to the viscoelastic foundation model to account for the viscoelastic behaviour.
Various studies have shown that these parameters significantly affect the inherent rate of occurrence and velocity of internal fluid flow.
Thus, a decrease in the foundation viscous coefficient leads to an increase in the dynamic properties of the pipe system.
Hu Critical flow velocity of fluid-conveying magneto-electro-elastic pipe resting on an elastic foundation, International Journal of Mechanical Sciences, 119, (2016), pp.273-282

It comes to the conclusion that the main factor which has an influence on the pipe flow is jet and the mainstream velocity ratio.
Zhang etc [16] researched influence factors and mechanism of the active control of helicopter rotor airfoil flow field on zero quality jet technology.
It analyzed that the difference with jet or without jet and the value of interference factors between numerical calculation and experimental results.
Fomin etc [40] researched on counter-flow jet with cold and hot gas in the supersonic flow field by experiments and analyzed the influence factors of the flow field.
Properties of aspect-ratio-4.0 rectangular jets in a subsonic cross-flow.

Because of its biocompatibility and osteoconductive properties, it has been extensively investigated for medical applications [1,2].
Such substitutions have much influence on the physical and chemical as well as physiochemical properties of apatite.
It was reported that the substitution of fluorine for OH- sites and formation of fluoride-substituted hydroxyapatite or fluoro/hyroxyapatite (FHAp) enhanced the acid resistance and the mechanical properties of hydroxyapatite, and induced better biological response [24,25].
As the amount of fluoride affects the properties of hydroxyapatite.
Yoshimura, Processing and properties of hydroxyapatite-based biomaterials for use as hard tissue replacement implants, J.

Introduction Among a large number of smart materials and structures, Electrorheological (Magnetorheological) material has a physical property that can be controlled by external electric (magnetic) field, and many advantages, including quick response, low energy consumption, and wide range of dynamic variation.
The reasons why Piezoelectric power generator has aroused great interests of the researchers in the field are because, for one thing, the efficiency of converting mechanical energy produced by pressure, shock, and vibration, etc., into electricity is quite high, only next to that of solar energy and wind energy, showing a promising prospect as a kind of renewable energy [6]; for another, it has the following advantages, such as simple in structure, low heat emission, non-electromagnetic interference, pollution free, and easy to be processed, manufactured, microminiaturized and integrated[ 7 ].
The Status Quo of Research on rectifier circuit Piezoelectric system can convert mechanical energy into electric energy, but the direct output of the energy harvester is AC voltage, which generally can not supply energy straightly to actuator.
Fig.1 The standard energy harvesting storage circuit Since loss caused by the rectifier circuit is an important factor that drags down the efficiency of piezoelectric harvesting, it is an effective way to enhance the conversion efficiency by using MOSFET with low on-resistance for rectifier.
The power of the synchronous charge extraction technology was not affected by the load impedance, and was more than four times than that of the standard circuit.

SMA is a family of metallic materials which have distinctive mechanical properties.
The same concrete and steel material properties are used in sizing the two buildings.
Properties of materials.
The properties at ambient temperature of SMA materials are summarized in Table 2.
Properties of materials used in this work, as given in references [11, 29].

The first one appeared in 1978 and it focused chiefly on the physic-chemical properties of radon, its occurrence in the environment and environmental impact.
The other book was published in the 21st century and it contains an extensive review of the most important information on radon with special emphasis on its physicochemical properties, particularly radioactive properties.
Kołodziej, Correction factors for determination of annual average radon concentration in dwellings of Poland resulting from seasonal variability of indoor radon, Applied Radiation and Isotopes 69 (10) (2011) 1459-1465
Jeričević, Factors controlling temporal variability of near-ground atmospheric 222Rn concentration over central Europe, Atmospheric Chemistry and Physics 14, (2014) 9567-9581
Prokólski, Factors controlling measurements of radon mass exhalation rate, Journal of Environmental Radioactivity 82 (2005) 363-369

The studies have shown that microstructure and microchemistry of the underlying alloy can affect the characteristics of the oxide and in turn the transport of hydrogen through the oxide and into the underlying metal.
Two factors that may limit the lifetime of these components are corrosion and hydrogen pickup rates.
Mechanical and corrosion properties of the Zr-2.5Nb pressure tubes are strongly dependent on the initial fabrication route and subsequent treatment of these tubes.
Results and Discussion Although both m and ysc specimens exhibited Laue patterns indicative of single crystal properties (Fig. 1), the diffraction spots obtained from the m specimens (Fig. 1b) were rather dispersed.
In the case of β-annealed Zr-20Nb oxides such properties have been observed [3].