thesis_revised
... compounds fabricated by molten salt synthesize method and study its influence on the ...
... compounds fabricated by molten salt synthesize method and study its influence on the ...
Icarus Geologic mapping of the Zal region of Io
... (1997) and Geissler et al. (1999, 2000) studied the color of Io in Galileo SSI and NIMS data. Dark (low albedo) materials occur mainly as units confined to patera interiors, appear in an array of colors from red to black, and are generally interpreted as silicate lava flows (Geissler et al., 1999). Mo ...
... (1997) and Geissler et al. (1999, 2000) studied the color of Io in Galileo SSI and NIMS data. Dark (low albedo) materials occur mainly as units confined to patera interiors, appear in an array of colors from red to black, and are generally interpreted as silicate lava flows (Geissler et al., 1999). Mo ...
thin film opal photonic crystals - Elpub Wuppertal
... The movement of electrons in semiconductors is well understood and can be controlled and harnessed in electronic devices; this is the basis of modern electronics. The next goal is the replacement of microelectronic components by optical micro-devices. The flow of light is much harder to control and ...
... The movement of electrons in semiconductors is well understood and can be controlled and harnessed in electronic devices; this is the basis of modern electronics. The next goal is the replacement of microelectronic components by optical micro-devices. The flow of light is much harder to control and ...
Quadratic solitons: recent developments
... such features. Second, they constitute a truly unique laboratory for soliton phenomena. Quadratic solitons exist in the spatial and the temporal domains; they exist and are stable and robust in guided and bulk geometries in any physical dimensions, including settings adequate for the formation of th ...
... such features. Second, they constitute a truly unique laboratory for soliton phenomena. Quadratic solitons exist in the spatial and the temporal domains; they exist and are stable and robust in guided and bulk geometries in any physical dimensions, including settings adequate for the formation of th ...
Revisit and insight into the dilemma of strong and brittle materials
... 24], Cu-Sb [25] and intermetallic Ni3 Al [26] with systematically controlled boundary type and character were prepared and studied. Structure-dependent fracture stress and strain are normally depicted as a function of the misorientation angle for a specific type of boundary with a specific common rota ...
... 24], Cu-Sb [25] and intermetallic Ni3 Al [26] with systematically controlled boundary type and character were prepared and studied. Structure-dependent fracture stress and strain are normally depicted as a function of the misorientation angle for a specific type of boundary with a specific common rota ...
10 - E-Prints Complutense
... cualquier cosa. No podría encontrar palabras para agradecerte todo lo que haces por mí, simplemente, eres la mejor. Por último, a mi familia. A mi hermana Rosa Mª y a mis padres. Por estar siempre ahí. Por haberme enseñado que para conseguir lo que uno desea hay que esforzarse. Por su ejemplo de sup ...
... cualquier cosa. No podría encontrar palabras para agradecerte todo lo que haces por mí, simplemente, eres la mejor. Por último, a mi familia. A mi hermana Rosa Mª y a mis padres. Por estar siempre ahí. Por haberme enseñado que para conseguir lo que uno desea hay que esforzarse. Por su ejemplo de sup ...
Acoustical properties of air-saturated porous material with
... surface dead-end pores.2 It was found that the presence of dead-ends had the effect of increasing the absorption coefficient at frequencies controlled by the average length of the dead-ends. This motivates the present study. Structured materials with well-controlled microgeometry including dead-end ...
... surface dead-end pores.2 It was found that the presence of dead-ends had the effect of increasing the absorption coefficient at frequencies controlled by the average length of the dead-ends. This motivates the present study. Structured materials with well-controlled microgeometry including dead-end ...
Biomimetic design of materials and biomaterials inspired by the
... inorganic component in a very well-organized three-dimensional organic template, made of macromolecules, proteins or polysaccharides, typically rich in carboxylate groups and, in many cases, phosphate or sulphate groups. Such charged groups interact very well with mineral ions in solution or with th ...
... inorganic component in a very well-organized three-dimensional organic template, made of macromolecules, proteins or polysaccharides, typically rich in carboxylate groups and, in many cases, phosphate or sulphate groups. Such charged groups interact very well with mineral ions in solution or with th ...
47.Piezoelectric Ceramics Characterization.pdf
... 1. Piezoelectric Materials: History and Processing. Smart materials are materials that undergo transformations through physical interactions. An alternate definition is that a smart material is a material that senses a change in its environment and through the use of a feedback system, adapts to cor ...
... 1. Piezoelectric Materials: History and Processing. Smart materials are materials that undergo transformations through physical interactions. An alternate definition is that a smart material is a material that senses a change in its environment and through the use of a feedback system, adapts to cor ...
NONLINEAR OPTICAL PROPERTIES OF NATURAL
... be used as optical materials for industrial and scientific applications. This growing interest in the application of natural dyes is geared mainly towards the need of developing green novel hybrid photonics. Indeed, several reports [Rek-2009, Bal-2011] have demonstrated that some ...
... be used as optical materials for industrial and scientific applications. This growing interest in the application of natural dyes is geared mainly towards the need of developing green novel hybrid photonics. Indeed, several reports [Rek-2009, Bal-2011] have demonstrated that some ...
Effect of Zn(NO3)2 filler on the dielectric permittivity and electrical
... both have significant physical meaning where ε′ stands for the energy stored per cycle and ε′′ denotes the energy loss per cycle. There are two different ways to perform dielectric spectroscopic experiment. One is the frequency domain measurement in which experiment is done with sinusoidal alternati ...
... both have significant physical meaning where ε′ stands for the energy stored per cycle and ε′′ denotes the energy loss per cycle. There are two different ways to perform dielectric spectroscopic experiment. One is the frequency domain measurement in which experiment is done with sinusoidal alternati ...
Dynamic propagation of a macrocrack interacting with parallel small
... or not. On the other hand, mesh dependency is a problem for cohesive elements. All of the above problems are making it difficult to correctly simulate crack propagation and especially multiple crack propagation/interaction [5]. Meshfree methods can be a good alternative to finite element method and ...
... or not. On the other hand, mesh dependency is a problem for cohesive elements. All of the above problems are making it difficult to correctly simulate crack propagation and especially multiple crack propagation/interaction [5]. Meshfree methods can be a good alternative to finite element method and ...
DX4301741751
... Micro hardness measurement indicates that all the crystals grown exhibit normal indentation size effect. The frequency and temperature dependence of dielectric constant (ε r), dielectric loss (tan δ) and AC conductivity (ζac ) were also studied. Photoconductivity measurement was also carried out to. ...
... Micro hardness measurement indicates that all the crystals grown exhibit normal indentation size effect. The frequency and temperature dependence of dielectric constant (ε r), dielectric loss (tan δ) and AC conductivity (ζac ) were also studied. Photoconductivity measurement was also carried out to. ...
182.pdf
... and its presence even in low index-contrast photonic crystals emphasize the possibility of extremely good ordering in selfassembled photonic crystals. This paper is organized as follows. In Sec. II, the experimental details will be presented. In Sec. III, results on the optical properties of the pho ...
... and its presence even in low index-contrast photonic crystals emphasize the possibility of extremely good ordering in selfassembled photonic crystals. This paper is organized as follows. In Sec. II, the experimental details will be presented. In Sec. III, results on the optical properties of the pho ...
Dielectric dispersion and microwave dielectric study of marbles in
... time for dipole rotation τ were determined from the complex Cole-Cole plots. All these samples have α values greater than 0.5 and their Δε values vary significantly. Further, wide variation in ac conductivity σ is also observed for different samples. The effect of sample bulk density and variation i ...
... time for dipole rotation τ were determined from the complex Cole-Cole plots. All these samples have α values greater than 0.5 and their Δε values vary significantly. Further, wide variation in ac conductivity σ is also observed for different samples. The effect of sample bulk density and variation i ...
Photonic Crystal Fibers
... By manipulating the structure it is possible to design desired dispersion properties of the fiber. PCFs having zero, low, or anomalous dispersion at visible wavelengths can be designed and fabricated. The dispersion can also be flattened over a very large range. Combining anomalous dispersion with s ...
... By manipulating the structure it is possible to design desired dispersion properties of the fiber. PCFs having zero, low, or anomalous dispersion at visible wavelengths can be designed and fabricated. The dispersion can also be flattened over a very large range. Combining anomalous dispersion with s ...
Roadmap for Emerging Materials for Spintronic Device Applications
... tunnel and spin-valve junctions as spintronic devices. These can be used for example as a cell for a magnetic random access memory and spin-torque oscillator in their vertical form as well as a spin transistor and a spin Hall device in their lateral form. In these devices, the critical role of magne ...
... tunnel and spin-valve junctions as spintronic devices. These can be used for example as a cell for a magnetic random access memory and spin-torque oscillator in their vertical form as well as a spin transistor and a spin Hall device in their lateral form. In these devices, the critical role of magne ...
Connecting mesoscopic and macroscopic scale lengths for
... strong attenuation and cut-off of frequency e.g. (Craciun et al., 1998). A sudden decrease in the velocity at high porosity values was shown but could not be explained in the light of existing macroscopic models of wave propagation. The ability of classical wave propagation to model very micro-porou ...
... strong attenuation and cut-off of frequency e.g. (Craciun et al., 1998). A sudden decrease in the velocity at high porosity values was shown but could not be explained in the light of existing macroscopic models of wave propagation. The ability of classical wave propagation to model very micro-porou ...
Soft and Hard Magnetic Materials:- Ferromagnetic
... due to exchange interaction couplings are aligned permanently in one direction even in the absence of an external field. Hence these materials exhibit spontaneous magnetization Iron, nickel, cobalt, Gadolinium etc are examples for ferromagnetic materials. In spite of the fact that magnetic moments d ...
... due to exchange interaction couplings are aligned permanently in one direction even in the absence of an external field. Hence these materials exhibit spontaneous magnetization Iron, nickel, cobalt, Gadolinium etc are examples for ferromagnetic materials. In spite of the fact that magnetic moments d ...
A DEVICE, A METHOD AND A SYSTEM FOR DETECTING
... depends on their properties. Thus, quality control in the material science, food industry, bio-sensing can be conducted based on sensing electrical properties of the materials. ...
... depends on their properties. Thus, quality control in the material science, food industry, bio-sensing can be conducted based on sensing electrical properties of the materials. ...
Ultrasonic Testing
... Surface (or Rayleigh) waves travel at the surface of a relatively thick solid material penetrating to a depth of one wavelength. A surface wave is a combination of both a longitudinal and transverse motion which results in an elliptical motion as shown in the image. The major axis of the ellipse ...
... Surface (or Rayleigh) waves travel at the surface of a relatively thick solid material penetrating to a depth of one wavelength. A surface wave is a combination of both a longitudinal and transverse motion which results in an elliptical motion as shown in the image. The major axis of the ellipse ...
8505
... substances where the application requires the existence of ferromagnetic or ferrimagnetic properties. The classification of magnetic materials is based upon the generally recognized existence of two main groups of products. - soft magnetic materials (coercivity less than or equal to 1000 A/m) - hard ...
... substances where the application requires the existence of ferromagnetic or ferrimagnetic properties. The classification of magnetic materials is based upon the generally recognized existence of two main groups of products. - soft magnetic materials (coercivity less than or equal to 1000 A/m) - hard ...
Laboratory experiments for exploring the surface plasmon resonance
... coupling of this electron oscillation with the electromagnetic field is the most straightforward way to detect this wave and the resulting optical wave is the surface plasmon (SP) wave. The mechanical wave (oscillation of charges) and the optical wave (oscillation of the electric field) are inextric ...
... coupling of this electron oscillation with the electromagnetic field is the most straightforward way to detect this wave and the resulting optical wave is the surface plasmon (SP) wave. The mechanical wave (oscillation of charges) and the optical wave (oscillation of the electric field) are inextric ...
Introduction to Materials Science and Engineering
... superalloys for this and other similar applications. One area that demands the most from materials scientists and engineers is space exploration. The design and construction of the International Space Station (ISS) and Mars Exploration Rover (MER) missions are examples of space research and explorat ...
... superalloys for this and other similar applications. One area that demands the most from materials scientists and engineers is space exploration. The design and construction of the International Space Station (ISS) and Mars Exploration Rover (MER) missions are examples of space research and explorat ...
Metamaterial
Metamaterials are materials engineered to have properties that have not yet been found in nature. They are made from assemblies of multiple elements fashioned from conventional materials such as metals or plastics. The materials are usually arranged in repeating patterns, often at microscopic or smaller scales that are smaller than the wavelengths of the phenomena they influence. Metamaterials derive their properties not from the properties of the base materials, but from their designed structure. Their precise shape, geometry, size, orientation and arrangement gives them their properties.Appropriately designed metamaterials can affect waves of electromagnetic radiation or sound in a manner not observed in bulk materials. Those that exhibit a negative index of refraction for particular wavelengths have attracted significant research. These materials are known as negative index metamaterials.Potential applications of metamaterials are diverse and include remote aerospace applications, sensor detection and infrastructure monitoring, smart solar power management, crowd control, radomes, high-frequency battlefield communication and lenses for high-gain antennas, improving ultrasonic sensors, and even shielding structures from earthquakes. Metamaterials offer the potential to create superlenses. Such a lens could allow imaging below the diffraction limit that is the minimum resolution that can be achieved by a given wavelength. A form of 'invisibility' was demonstrated using gradient-index materials. Acoustic and seismic metamaterials are also research areas.Metamaterial research is interdisciplinary and involves such fields as electrical engineering, electromagnetics, classical optics, solid state physics, microwave and antennae engineering, optoelectronics, material sciences, nanoscience and semiconductor engineering.