Materials Literature
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O objetivo deste estudo é adequar uma máquina de solda a ponto a Norma Regulamentadora NR12 através de enclausuramento. O levantamento em campo realizado em quatro diferentes empresas constatou-se a existência de diferentes modelos de máquinas de solda a ponto (por resistência, capacitiva, media frequência, etc.), pot…
Harvesting only 4 % of light striking the Earth could possibly fulfill present energy demands of a mankind. Chlorosome of green sulfur bacteria is re- garded as suitable light-harvesting system for photosynthesis imitation. This work presents comparison of absorption and hole burning spectra of artificially prepared a…
O processo de soldagem manual com eletrodos revestidos teve um papel de destaque ao longo de parte do seculo XX. Ainda hoje, onde ha varios processos mais produtivos, eletrodos revestidos basicos sao largamente empregados em soldagens de grande responsabilidade. Contudo, a elevada susceptibilidade a absorcao de umidad…
In this paper, the bending and free flexural vibration behaviour of sandwich plates with carbon nanotube (CNT) reinforced facesheets are investigated using QUAD-8 shear flexible element developed based on higher-order structural theory. This theory accounts for the realistic variation of the displacements through the…
We study the stability against disorder of surface states of weak Z2 topological insulators (superconductors) which are stacks of strong Z2 topological insulators (superconductors), considering representative Dirac Hamiltonians in the Altland-Zirnbauer symmetry classes in various spatial dimensions. We show that, in t…
This chapter contains sections titled: References
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Abstract : The mechanical response of three different types of materials are examined: unidirectionally reinforced continuous fiber Al2O3/Al metal matrix composite, random fiber Saffil-fiber aluminum matrix composite, and a satin-weave Nextel fiber reinforced aluminum matrix composite. Quasi-static tests and specially…
Tires are annually manufactured in more than one billion of artefacts and the ever increasing demand is on the basis of the efforts in finding new solutions for more performant, sustainable and durable products. This PhD thesis presents highly new contributions to the nanotechnology applied to rubber nanocomposites, p…
REM-Aufnahmen eines metallographischen Querschliffs einer VPS-Raney Nickel-Kathode vor (links) und nach dem Aktivierungsschritt (rechts) NiAlMo-Legierung als Elektrokatalysator für H 2 -Entwicklung Alkalische Wasserelektrolyse Verminderung der Verluste durch Aktivierung der Elektroden IR-freie Stromdichte/Überspannung…
Zeolitic Imidazolate frameworks (ZIFs) are important subclass of porous metal-organic frameworks (MOFs). The ZIFs structure has zeolitic framework topologies wherein all tetrahedral atoms are transition metal ions and are bridged by imidazolate (IM) units. Zeolitic imidazolate framework-8 (ZIF-8) is a prototypical mem…
Gradient-index meta-surfaces have been shown to have the ability to manipulate wavefronts at will in a reflectionless manner in the GHz range, including the extreme example of converting freely propagating waves into surface waves with high efficiency. Upon approaching the optical regime, the gradient-index concept en…
Titanium and its alloys are known for their specific strength and excellent corrosion resistance leading to widespread use of these alloys for biomedical implants, e.g., Ti-6Al-4V (wt %). The Ti-6Al-4V (Ti-64) alloy is an ??+?? alloy where the ??-phase is hexagonal close packed and the ??-phase is body centered cubic.…
High temperature oxidation of metallic alloys is a complex phenomenon involving multiple processes, e.g., arrival of gaseous species at the surface of the materials, solid state diffusion, creation and movement of defects in the material, initial oxidation state, etc. One of the limitations in using stainless steels f…
This chapter contains sections titled: A.1 INTRODUCTION A.2 PHASOR REPRESENTATION A.3 PER-UNIT REPRESENTATION A.4 MATRIX ALGEBRA A.5 STEADY-STATE COMPONENT MODELING
Xenobiotics entering biological systems undergo the following processes: I, absorption: oral, dermal, inhalation; II, tissue distribution (disposition); III, protein and tissue binding; IV, enzymatic and nonenzymatic chemical transformation; and V, excretion.
By combining scattering-scanning near-field optical microscopy (s-SNOM) with mid-infrared synchrotron radiation, synchrotron infrared nano-spectroscopy (SINS) enables molecular and phonon vibrational spectroscopic imaging, with rapid spectral acquisition, spanning the full mid-infrared (500-5000 cm) region with nanosc…
Replacement of the cubic term in the soft potential model of glasses with a linear one can be interpreted as an introduction of the internal pressure (coefficient of the linear term), additive to the applied external pressure. It makes the potential unique and removes the ambiguity, present in the conventional represe…
A B S T R A C T The effect of crack initiation on the dynamic stress states in a single crystal material is simulated using molecular dynamics methods. In Process, we examined if the dynamic virial stress measure capture structure vibration characteristic. The material is modeled using atomic state representative volu…
ADVERTISEMENT RETURN TO ISSUEEditorialNEXTACS Catalysis Welcomes Bo-Qing Xu as Associate Editor and Awards ACS Catalysis Lectureship to Suljo LinicChristopher W. JonesView Author Information Georgia Institute of Technology Cite this: ACS Catal. 2014, 4, 3, 942Publication Date (Web):March 7, 2014Publication History Pub…