Materials Literature
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Abstract We provide an overview of nuclear quadrupole resonance (NQR), including two‐dimensional NQR methods and NQR imaging. We review the quantum mechanics of quadrupolar nuclear spins at zero‐field, including the trends and magnitudes of nuclear quadrupole moments. We review the coupling of these moments with the l…
Evaluacion de recubrimientos organicos por metodos potenciostaticos en ensayos de corrosion
A key challenge for the automotive industry is to reduce vehicle mass without compromising on crash safety. To achieve this, it is necessary to model local failure in a material rather than design to the overly conservative criteria of total elongation to failure. The current understanding of local fracture is limited…
Abstract Not Provided
Significance and Use 5.1 The dynamic modulus of elasticity provided by these test methods is a fundamental property for the configuration tested. This value can be related to static and other dynamic moduli of elasticity as measured on the same configurat
The Transportation Operations Model (TOM) is a component of the Transportation Storage Logistics (TSL) model, which assists the analyst in planning and evaluating scenarios for the transportation and storage of spent nuclear fuel (SNF). TOM was originally developed for the DOE’s Office of Civilian Radioactive Waste Ma…
The Raman and FTIR spectra of acetanilide (ACN) were measured experimentally in the regions of 3 500-50 and 3 500-600 cm(-1) respectively. The equilibrium geometry and vibration frequencies of ACN were calculated based on density functional theory (DFT) method (B3LYP/6-311G(d, p)). The results showed that the theoreti…
Reconstruction of large bone defects remains problematic in orthopedic and craniofacial clinical practice. Engineering a functional scaffold mimicking the architectural structure of bone and the regenerative capacity of periosteum offers a potential solution. Electrospun nanofibrous scaffolds are superior in surface a…
Tm3+, Ho3+, Yb3+ co-doped YPO4 micro-nano tubes were synthesized by hydrothermal method. Under the 980 nm near infrared (NI) excitation, the micro-nano tubes emitted red, green, blue visible light and a near infrared emission centered at 795 nm. The optical properties and structure of the synthesized Tm3+, Ho3+, Yb3+…
Plasticity in small volumes is significantly different than in large, bulk-like specimens.The strength of materials in the micron and sub-micron regime depends not only on the microstructure but also on the size of the material.Given that a number of important mechanical processes occur at these length scales, it is i…
Abstract Not Provided
The NGNP Graphite R&D program is currently establishing the safe operating envelope of graphite core components for a Very High Temperature Reactor (VHTR) design. The program is generating quantitative data necessary for predicting the behavior and operating performance of the new nuclear graphite grades. To determine…
This protocol describes the simultaneous permeabilization of Drosophila embryos with n-heptane and initial fixation with glutaraldehyde. Even though the vitelline membrane around the embryo is chemically permeabilized, it must be manually removed to achieve infiltration with embedding resins. Once the embryo is embedd…
The in-plane resistivity anisotropy has been studied with the Montgomery method on two detwinned parent compounds of the iron-based superconductors, NaFeAs and FeTe. For NaFeAs, the resistivity in the antiferromagnetic (AFM) direction is smaller than that in the ferromagnetic (FM) direction, similar to that observed i…
This thesis describes the development of a method to measure in vivo gadolinium (Gd) content by prompt gamma neutron activation analysis (PGNAA). PGNAA is a quantitative measurement technique that is completely non-invasive. Gadolinium has the highest thermal neutron capture cross section of all the stable elements. G…
A study has been conducted in mildly aggressive saline solutions to indentify subtle yet important difference in the anodic and cathodic process of three Mg-Al alloys, AZ31B, AM30 and AM60B in a partially passive state and a localized corrosion state. The influence of metallurgical factors and environment variables on…
Weak wet strength of paper is one of the major challenges limiting the increase use of paper products. It is difficult to form strong adhesive joints between hydrophilic wet cellulose surfaces. Previous research disclosed an approach using polyvinylamine (PVAm) with grafted TEMPO for oxidation of cellulose to improve…
This specification covers the chemical, mechanical, and metallurgical requirements for wrought 18chromium-14nickel-2.5molybdenum stainless steel sheet and strip used for the manufacture of surgical implants. Sheet and strip shall be furnished as specified, in the annealed or cold-worked condition. Types of finish avai…
N-hexadecylated poly(p-phenylene terephthamide) (PPTA) comb-like polymers (PPTAC16), which are composed of PPTA backbone and hexadecyl side chains, were prepared by method of N-alkylation reaction. The molecular structure and thermal transition behavior of PPTAC16 were characterized by a combination of differential sc…
Nuclear power currently provides a significant fraction of the United States’ non-carbon emitting power generation. In future years, nuclear power must continue to generate a significant portion of the nation’s electricity to meet the growing electricity demand, clean energy goals, and ensure energy independence. New…