Materials Literature
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En el extremo sudeste de la Sierra de Velasco, al oeste de la ciudad de La Rioja, Argentina, se desarrolla una faja de cizalla denominada Faja Milonítica Sur, como consecuencia de una deformación de carácter dúctil del plutón granítico San Cristóbal en condiciones de facies esquistos verdes. En este trabajo se evalúa…
In this research, using pyrolysis of phenolic resin in the presence of silicon particles, the SiC ceramic composite is formed. The samples were prepared by introducing 30, 35, 40, 45 and 50 wt% of Si particles to the phenolic resin. The samples were cured at 180°C then carbonized at 1100°C. The final carbonized C/Si c…
در این تحقیق، عملکرد یک غشای پلیمری تحت فرآیند اولترافیلتراسیون آب تولید شده همراه نفت با استفاده از یک فرآیند دو مرحلهای مورد بررسی قرار گرفت. در مرحله اول، تاثیر پارامترهای عملیاتی مانند اختلاف فشار دو طرف غشاء، دما و سرعت جریان عرضی خوراک بر روی میزان افت فلاکس ناشی از گرفتگی غشا در طول فرآیند مورد مطالعه قرار گرف…
We present theoretical evidence for the phase evolution and stability of Fe substituted RMn₂O 5-δ (R=Bi, Sm or Y) mullite structures. Our density-functional simulations show evidence for the R site dependence of the mullite phase evolution with the Fe content in the solid solution. For Fe in R=Y or Sm compounds, the o…
A fast moving system’s fragments are produced during an unexpected event and it can be incurred an impact with the case of fast moving system(CFMS). To prevent the fragment of fast moving system from penetrating the CFMS, the collided body is required to design not to be penetrated using analysis of simulation method…
Air Products is carrying out a scope of work under DOE Award No. DE-FE0012065 “Development of ITM Oxygen Technology for Low-cost and Low-emission Gasification and Other Industrial Applications.” The Statement of Project Objectives (SOPO) includes a Task 4f in which a Decision Point shall be reached, necessitating a re…
ZnO:Al (AZO) thin films were prepared on glass substrates by radio frequency magnetron sputtering at 300℃. Effects of H_2/(H_2 + Ar) flow rate ratio (R_H) during sputtering and post-deposition hydrogen plasma treatment on structural, electrical, and optical properties of AZO thin films were investigated and compared.…
Many studies have been conducted for Periodic Cellular Metals(PCMs) to obtain high strength and stiffness for a given weight. To date, a number of structures have been proposed, and they mostly have truss structures such as Pyramid, Octet, Kagome, etc. Recently, Microlattice, a ultra-low density metal(ULDM) composed o…
On superhydrophobic (SHPo) surfaces, either of two wetting states ?the Cassie state (i.e., non-wetted state) and the Wenzel state (i.e., wetted state) ? can be observed depending on the thermodynamic energy of each state and experimental conditions. Each wetting state leads to quite a distinctive dynamic characteristi…
This paper presents the shape design for reducing cogging torque and characteristic analysis in Brushless DC (BLDC) motor. In this BLDC motor, Δ(delta)-winding is applied, and in order to obtain the 60° trapezoidal phase back-EMF waveform, permanent magnet shape design is carried out. And then, a method on specifying…
Se presentan los efectos reforzantes de la radiación gamma en compuestos de polietileno de alta densidad y residuos de madera Bolaina blanca (Guazuma crinita) procedentes de la región Pucallpa. Las muestras han sido mezcladas con anhídrido maléico y extruidos a temperaturas comprendidas entre 170 y 200 ºC, obteniéndos…
Electrochemical signal current can be enhanced by increasing surface area of the electrode or integrating nanopores at the electrode surface. However, complex processes have limited wide-application of nanoporous electrodes. We present a simple method enhancing redox current signal of electrochemcal sensors based on c…
The purpose of the study is to predict the ballistic strength of hard aramid fiber/phenolic ballistic composites by implementing the full factorial experimental design. When designing ballistic composites two major factors are the most important: the ballistic strength and the weight of the protection. The ultimate ta…
This work reports, immobilization the Cobaloxime [Co (DH) Cl;DH,dimethylglyoximato)] onto the MCM- .The surface of MCM- was initially functionalized with -aminopropyltrimethoxysilane and -pyridine. For the electrostatic immobilization this was reacted with Cobaloxime and immobilization was achieved by an electrostatic…
University of Minnnesota Ph.D. dissertation. November 2014. Major: Physics. Advisor: Paul A. Crowell. 1 computer file (PDF); viii, 110 pages, appendices A-C.
随机光学重建显微技术（STORM）是一种重要的超分辨显微手段。为实现STORM的超分辨成像，本文讨论了STORM中的数据处理方法，设计出了图像重建算法，设计和搭建了STORM光路系统，完成了相应的控制系统设计，并利用所搭建STORM系统完成了超分辨成像。 首先讨论了STORM所采用的基于单分子定位的超分辨定位算法。比较了现有的常用定位算法，设计出了基于高斯拟合的2D单PSF算法、多PSF算法和3D超分辨定位算法。采用MATLAB软件模拟样品成像过程，利用所设计的算法对其进行了定位和图像重建。 设计了一套基于Olympus倒置荧光显微的STORM光路系统，包括光路选择系统、全内反射照明系统等。完成了基于单片机的图像采集和光路控制系统…
MAX phases, such as titanium silicon carbide (Ti3SiC2), have a unique combination of both metallic and ceramic properties, which make them attractive for potential nuclear applications. Ti3SiC2 has been suggested in the literature as a possible fuel cladding material. Prior to the application, it is necessary to inves…
The thermal conductivity of single-crystalline ZnS nanowires with the wurtzite (WZ), zinc-blende (ZB) and polytypic superlattice structures at 300K is analyzed using the reverse non-equilibrium molecular dynamics (NEMD) approach. The focus is on the effect of phonon scattering on the thermal transport in superlattice…
We present the assembly and application of three-dimensional (3D) hybrid nanoarchitectures comprising carbon nanotubes (CNTs) and metal oxide (MOx) nanowires such as zinc oxide and vanadium oxide. The MOx nanowires are hierarchically assembled onto the surface of aligned or textured CNT constructs via the step-wise ch…
Diarylethene is a photo-responsive crystal which responds to ultraviolet and visible light irradiation. Because of its unique characteristics, it has received a great amount of interests in various fields (; actuator, opto-electronic device, etc.) for decades. However, there is a gap between the current research and p…