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The hygroscopicity of moso bamboo (Phyllostachys edulis) with a gradient fiber structure

Description: This article studies the hygroscopicity of moso bamboo (Phyllostachys edulis) with a gradient fiber structure assessed by a dynamic vapor sorption (DVS) apparatus and fitted with a Haillwood–Horrobin (H–H) model. The effects of the chemical composition, gradient fiber structure, and mesopore structure of the bamboo were also investigated. The results demonstrate that the hygroscopicity of bamboo gradually increases from the outer to the inner layer along the thickness of the culm wall, which is… more
Date: October 15, 2021
Creator: Wei, Xin; Wang, Ge; Smith, Lee M. & Jiang, Huan
Partner: UNT College of Engineering
open access

Review of Gamification mindset

Description: This article is a review of the book "Gamification Mindset" by Ole Goethe.
Date: October 15, 2020
Creator: Ham, Chris D.
Partner: UNT College of Education
open access

Multiphysics Applications of ACE3P

Description: No Description Available.
Date: October 15, 2013
Creator: Lee, Ki H.; Ko, Kwok; Li, Zenghai; Ng, Cho-Kuen; Xiao, Liling; Cheng, G. et al.
Partner: UNT Libraries Government Documents Department
open access

Single Electron Dynamic of Microwave Undulator

Description: No Description Available.
Date: October 15, 2013
Creator: Chang, C.; Neilson, J.; Pellegrini, C.; Shumail, M. & Tantawi, S. G.
Partner: UNT Libraries Government Documents Department
open access

Fast Beam-Based BPM Calibration

Description: The Alignment Diagnostic System (ADS) of the LCLS undulator system indicates that the 33 undulator quadrupoles have extremely high position stability over many weeks. However, beam trajectory straightness and lasing efficiency degrade more quickly than this. A lengthy Beam Based Alignment (BBA) procedure must be executed every two to four weeks to re-optimize the X-ray beam parameters. The undulator system includes RF cavity Beam Position Monitors (RFBPMs), several of which are utilized by an a… more
Date: October 15, 2012
Creator: Bertsche, K.; Loos, H.; Nuhn, H. D. & Peters, F.
Partner: UNT Libraries Government Documents Department
open access

Long Term Thermal Stability In Air Of Ionic Liquid Based Alternative Heat Transfer Fluids For Clean Energy Production

Description: The purpose of this study was to investigate the effect of long-term aging on the thermal stability and chemical structure of seven different ILs so as to explore their suitability for use as a heat transfer fluid. This was accomplished by heating the ILs for 15 weeks at 200�C in an oxidizing environment and performing subsequent analyses on the aged chemicals.
Date: October 15, 2012
Creator: Fox, Elise B; Kendrick, Sarah E.; Visser, Ann E. & Bridges, Nicholas J.
Partner: UNT Libraries Government Documents Department
open access

Composition, stability, and measurement of reduced uranium phases for groundwater bioremediation at Old Rifle, CO

Description: Reductive biostimulation is currently being explored as a possible remediation strategy for uranium (U) contaminated groundwater, and is currently being investigated at a field site in Rifle, CO, USA. The long-term stability of the resulting U(IV) phases is a key component of the overall performance and depends upon a variety of factors, including rate and mechanism of reduction, mineral associations in the subsurface, and propensity for oxidation. To address these factors, several approaches w… more
Date: October 15, 2011
Creator: Campbell, K. M.; Davis, J. A.; Bargar, J.; Giammar, D.; Bernier-Latmani, R.; Kukkadapu, R. et al.
Partner: UNT Libraries Government Documents Department
open access

The"minimum information about an environmental sequence" (MIENS) specification

Description: We present the Genomic Standards Consortium's (GSC) 'Minimum Information about an ENvironmental Sequence' (MIENS) standard for describing marker genes. Adoption of MIENS will enhance our ability to analyze natural genetic diversity across the Tree of Life as it is currently being documented by massive DNA sequencing efforts from myriad ecosystems in our ever-changing biosphere.
Date: October 15, 2010
Creator: Yilmaz, P.; Kottmann, R.; Field, D.; Knight, R.; Cole, J.R.; Amaral-Zettler, L. et al.
Partner: UNT Libraries Government Documents Department
open access

The Results of Recent MICE Superconducting Spectrometer Solenoid Test

Description: The MICE spectrometer solenoid magnets will be the first magnets to be installed within the MICE cooling channel. The MICE spectrometer solenoids may be the largest magnets that have been cooled using small two stage coolers. During the previous test of this magnet, the cooler first stage temperatures were too high. The causes of some of the extra first stage heat load has been identified and corrected. The rebuilt magnet had a single stage GM cooler in addition to the three pulse tube coolers.… more
Date: October 15, 2010
Creator: Green, Michael A.; Virostek, Steve P. & Zisman, Michael S.
Partner: UNT Libraries Government Documents Department
open access

The Role of Quench-back in the Passive Quench Protection of Uncoupled Solenoids in Series with and without Coil Sub-division

Description: This paper is the final paper in a series of papers that discusses passive quench protection for high inductance solenoid magnets. This report describes how passive quench protection system may be applied to superconducting magnets that are connected in series but not inductively coupled. Previous papers have discussed the role of magnet sub-division and quench back from a conductive mandrel in reducing the hot-spot temperature and the peak coil voltages to ground. When magnets are connected in… more
Date: October 15, 2010
Creator: Guo, Xing Long; Green, Michael A; Wang, Li; Wu, Hong & Pan, Heng
Partner: UNT Libraries Government Documents Department
open access

Surface complexation of Pb(II) by hexagonal birnessite nanoparticles

Description: Natural hexagonal birnessite is a poorly-crystalline layer type Mn(IV) oxide precipitated by bacteria and fungi which has a particularly high adsorption affinity for Pb(II). X-ray spectroscopic studies have shown that Pb(II) forms strong inner-sphere surface complexes mainly at two sites on hexagonal birnessite nanoparticles: triple corner-sharing (TCS) complexes on Mn(IV) vacancies in the interlayers and double edge-sharing (DES) complexes on lateral edge surfaces. Although the TCS surface com… more
Date: October 15, 2010
Creator: Kwon, K.; Refson, K. & Sposito, G.
Partner: UNT Libraries Government Documents Department
open access

Surface kinetic model for isotopic and trace element fractionation during precipitation of calcite from aqueous solution

Description: A surface reaction kinetic model is developed for predicting Ca isotope fractionation and metal/Ca ratios of calcite as a function of rate of precipitation from aqueous solution. The model is based on the requirements for dynamic equilibrium; i.e. proximity to equilibrium conditions is determined by the ratio of the net precipitation rate (R{sub p}) to the gross forward precipitation rate (R{sub f}), for conditions where ionic transport to the growing crystal surface is not rate-limiting. The v… more
Date: October 15, 2010
Creator: DePaolo, D.
Partner: UNT Libraries Government Documents Department
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