Advanced Materials Research Vol. 818

Abstract: Looking through the history of materials, people have been using them to process and produce our articles for daily uses all the time, therefore discovered the booming of the combination in artistic aesthetics and reused materials. The reuse of materials including the use of green materials which are environmental friendly and the recycle of old materials. The essay below will discuss the effect on the social life of the artistic features in the reuse of materials.

Abstract: A model resulting from principal component analysis and assessment based on surface resonant peak of UV-VIS spectrum to determine the diameter of gold nanoparticles is presented in this paper. Six different diameters were analyzed by using the absorption spectra in the range from 400 nm to 700 nm. Commercial TED-PELLA gold colloid nanoparticles with diameters between 20 nm and 80 nm were measured. Preliminary results suggest the usefulness that this model may have on the characterization of nanostructured materials in colloidal suspension, as well as its application in manufacturing protocols standardization of nanoparticles.

Abstract: This Paper presents the design and simulation of single walled carbon nanotube (SWCNT) based cantilever type electrostatic actuator using finite element analysis method (FEM). The pull-in voltage has been calculated for various chirality of the nanotube based cantilever beam actuators. The pull-in voltage are obtained for the various gap between electrode and ground of the cantilever beam through extensive simulations using ANSYS software. The results obtained shows that pull-in voltages varies from 2.5 to 13.5V with respect to nanotube chirality and gap length.

Abstract: Nanomaterials could change the face of modern construction because they are more resistant, more durable and have notable features. Concrete is a material widely used in construction industry worldwide. Carbon nanotube has been considered a new and outstanding material in nanoscience field with great potential application in the construction industry. The study presented in this paper, aims at assessing how carbon nanotubes can affect cement composites and so the concrete, in terms of microstructure and physical-mechanical properties. Three different ratios of carbon nanotubes have been searched: 0.20%, 0.40% and 0.60%. To evaluate the mechanical properties of the samples, destructive and non-destructive tests were carried out to obtain compressive strength, tensile strength by diametrical compression, dynamic modulus of elasticity as well as the determination of their deformation properties. This work also aims to motivate entrepreneurs and professionals in the sector of civil engineering on the advantages of the application of nanotechnology in construction, as well as providing information to the scientific and technological community in general.

Abstract: We report nonlinear optical properties of hybrid systems that contain single-walled carbon nanotubes and Coproporphyrin dye suspensions. The studies were performed in Vis-NIR spectral range. Our results depict both bleaching and limiting properties. A phenomenon of optical power limiting synergism is demonstrated.

Abstract: In this work, we use 3D finite difference time domain (3D-FDTD) to calculate the plasmon resonance effect for a single silver hemisphere in which the palsmon line shape have distinct peaks when the particles are located on a glass substrate. The dependence of the resonance on hemisphere size and the ratio of height over radius are characterized, and it is found that the surface interface effect played an important role on the plasman resonace effect for a single silver hemisphere.

Abstract: Laser driven mass transportation on a single carbon nanocoil (CNC) has been investigated, by regulating the controlling current and the laser focus position. It is found that a paraffin microsphere on a single CNC can be removed by the irradiation of an infrared laser beam on the CNC body near themicrosphere. This phenomenon is explained by a thermal driven forceresulted by a temperature gradient along the CNC around the irradiation spot wherethe laser energy is transformed into thermal energy.

Abstract: When emergencies occur, there will be a lot of problems, such as information redundancy and the asymmetry of information in rescue organization, which seriously affect the efficiency of emergency management. To solve these problems, an emergency management system based on cloud computing is proposed, and cloud service architecture is designed, which will contribute to the optimization of emergency management model in China.

Abstract: The correction power supplies are working in the Taiwan Photon Source (TPS) of NSRRC. They are required to output current at high quality and with high performance and that has long-term stability, with output current ripple required to be less than 10ppm. The TPS comprises more than 1200 units of independent power-supplymodules working together when the beam current is at3-GeV status. The power supplies are all working in current mode. We willplan to build a new measurement laboratory for conduction Electromagnetic Interference (EMI) to measure and to test the switching DC power bus thatfeeds the correction power supplies. We can get conduction electromagnetic interferencenoise from the measurement equipmentto measure the switching DC power bus is an AC-to-DC voltage bus source.With the LISN obtainingthe conduction noise, it is a high-frequency voltage noise generated by the switching mode of the power-supply conduction noise. The current signal passes an AC source-impedance stabilized network LISN, and a spectrum analyzer obtains the conduction noise. We use a noise separator to separate the common EMI noise and the difference-mode EMI noise for EMI filtering design. The measurement results are illustrated in this paper.

Abstract: In order to deal with the difficulty of magnetic field adjustment in permanent magnet synchronous generators (PMSG), this paper proposed a novel paratactic structure hybrid excitation synchronous generators (HESG) and presented the basic configuration and its principle. Then, it analyzed three combination methodsof PMSG and the electro-excitation synchronous generators (EESG) in HESG,and also presented calculation way of field current in HESG. Finally, the experimental results proved the correctness of those analyses.