Materials Literature
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References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 405 14.1 Introduction in lms are an integral part of any laser design. Coatings are used for reducing surface losses and ghosts (antireection), pulse trapping and beam combination (polariz…
In the last two decades, great progress has been achieved regarding the application of Li-ion batteries in various areas. They already dominate the electrochemical energy storage systems used for portable electronic devices and have exhibited potential in the application in electric vehicles and stationary electricity…
For this initial discussion, let us choose our propagation direction as the z-axis. Since this is a plane wave, it will have no variation in either the x-or y-direction and will, therefore, be a function of distance, z, and time, t, only. Because we are dealing with linear eects, we can represent this wave in complex…
Hashing is a mathematical function that transforms a key k to be searched to a location h(k) where the contents corresponding to the key can be found. An example of a very simple hash function with m locations is h(k) = k mod m.
Infrastructure is required to move hydrogen from the location where it is produced to the dispenser at a refueling station or stationary power site. Infrastructure includes the pipelines, trucks, railcars, ships, and barges that deliver fuel, as well as the facilities and equipment required to load and unload them. De…
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266 One reason stems from the fact that aer the polishing process of optical components, even good-quality polishing process, there are residual scratches, defects, and imperfections on th…
Billions of dollars are spent worldwide every year on nuclear remediation projects. Most of this work is done now as it was done decades ago and is very labor and resource intensive. AMEC has developed technology that has been deployed on projects across the United States and in Canada, Japan, and the United Kingdom t…
This PDF file contains the front matter associated with SPIE Proceedings Volume 9249, including the Title Page, Copyright information, Table of Contents, Invited Panel Discussion, and Conference Committee listing.
We review recent developments in the spectral theory of continuum one-dimensional quasicystals, yielding purely singular continuous spectrum for these Schrödinger operators. Allowing measures as potentials we can generalize some results to very singular potentials, including Kronig-Penney type models.
El objetivo de esta tesis doctoral ha sido el estudio de las propiedades fisicas de nanoestructuras de s-Ga2O3 no dopadas y dopadas con varias impurezas y su relacion con la morfologia. Las nanoestructuras se han crecido mediante un proceso de evaporacion termica controlada para obtener las estructuras deseadas. Los m…
la préparation de poly (4-vinylpyridine ) et de ses dérivés (cosylate et bromure de poly (n-trioxadecyl -4vinylpyridinium) et leur influence sur la corrosion du fer et du laiton (cu/zn,60/40) en milieu acide ont été étudiés par les méthodes électochimiques, la résistance de polarisation et gravimétrie. la présence des…
对于传统PWM变换器,死区时间越小,效率越高,而谐振变换器并非如此。本文针对LLC谐振式直流变压器(LLC-DCT),通过推导LLC拓扑损耗与死区时间的定量关系,提出了一种基于死区时间和励磁电感最优解的LLC谐振参数设计方法。从而选取最佳死区时间和励磁电感,得到最优化的整机效率,避免了先前设计中死区时间选取的盲目性。同时,根据工作在直流变压器下的LLC特点,分析了励磁电感与谐振电感比值和品质因素的选取。最后,研制了一台基于该优化设计方案的150W LLC-DCT样机,实验结果表明了设计方法的有效性和准确性。
The empirical calculations of the prompt neutrons average number for photofission of the 232Th, 233U, 234U, 235U, 236U, 238U, 237Np, 239Pu and 241Am actinides has been done as a function of photon energy, mass and charge of the nuclei, which can be used to evaluate the average number for photo-fission of nuclides for…
Abstract not provided
After an intentional radiological release or nuclear power plant (NPP) accidental release, there may be a large area that is contaminated. Re-suspension and tracking of contamination may create issues with containing the contaminated area and create additional exposure to responders. There is a need for technologies/m…
os meses em que estivemos juntos.Sem vocês, teria sido mais difícil.Thank Leticia Carolina Izquierdo and Evan Stuart Andrews for the friendship and all the support that both of you gave me during the months in which we were together.Without you, it would have been harder.
This thesis has been devoted to electrostatic mechanical energy harvesting based on capacitors inspired by fractal geometry, to mechanical energy harvesting based on beams with electrostrictive polymers, and to thermal energy harvesting based on ferromagnetic materials. For electrostatic energy harvesting without elec…
It is reasoned in this paper that the traditional assumption of grain volume conservation during diffusion creep is correct only for special grain configurations. An analysis is presented that illustrates this, using a hypothetical arrangement of grains specifically chosen to be stable against both grain boundary slid…
Nanofabrication is the foundation of nanophotonics and has become a research hotspot in the last decades. The method annealing crack is proposed to transfer the nanocracks from ultraviolet (UV) resist to other photonic materials. The method is demonstrated by simulating the inner stress distribution with the thermal-s…
Abstract Nanodrähte aus sp3‐C‐C‐gebundenem Diamant sind Halbleiter mit einer breiten Bandlücke und einer Kombination ausgezeichneter Eigenschaften wie einer negativen Elektronenaffinität, chemischer Inertheit, einem hohen Elastizitätsmodul, höchster Härte und höchster thermischer Leitfähigkeit bei Raumtemperatur. Über…