Digital Commons Network^™

Reduction Of The Ordered Magnetic Moment And Its Relationship To Kondo Coherence In Ce₁₋ₓlaₓcu₂Ge₂, B. G. Ueland, N. H. Jo, A. Sapkota, W. Tian, M. Masters, Halyna Hodovanets, S. S. Downing, C. Schmidt, R. J. Mcqueeney, For Full List Of Authors, See Publisher's Website.

Physics Faculty Research & Creative Works

The microscopic details of the suppression of antiferromagnetic order in the Kondo-lattice series Ce_1-xLa_xCu₂Ge₂ due to nonmagnetic dilution by La are revealed through neutron diffraction results for x = 0.20, 0.40, 0.75, and 0.85. Magnetic Bragg peaks are found for 0.20 ≤ x ≤ 0.75, and both the Néel temperature TN and the ordered magnetic moment per Ce μ linearly decrease with increasing x. The reduction in μ points to strong hybridization of the increasingly diluted Ce 4f electrons, and we find a remarkable quadratic dependence of μ on the Kondo-coherence temperature. We …

The Missouri Miner, April 12, 2018

The Missouri Miner Newspaper

No abstract provided.

Spectral Analysis Of Surface Waves To Detect Subsurface Voids, Payman Hajiani, Neil Lennart Anderson, J. David Rogers

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

Systems and methods for detecting a subsurface cavity. A source applies a force to ground under inspection and a plurality of sensors coupled to the ground detect resulting surface waves. A processor is configured to extract phase and frequency components of the acquired seismic data, identify a phase shift in surface waves in the ground under inspection based on the extracted phase and frequency components, and determine one or more physical characteristics of a subsurface cavity based on the identified phase shift

Structural Evidence For Rifampicin Monooxygenase Inactivating Rifampicin By Cleaving Its Ansa-Bridge, Li Kai Liu, Yumin Dai, Heba Abdelwahab, Pablo Sobrado, John J. Tanner

Chemistry Faculty Research & Creative Works

Rifampicin monooxygenase (RIFMO) decreases the potency of rifampicin (RIF) by converting it to oxidative products. Further decomposition of RIF has been observed in bacteria producing RIFMO and contributes to RIFMO-mediated drug resistance. Here we report the first crystal structure of RIFMO in complex with the hydroxylated RIF product. The 2.10 Å resolution structure reveals a breach of the ansa aliphatic chain of RIF between naphthoquinone C2 and amide N1. Our data suggest that RIFMO catalyzes the hydroxylation of RIF at the C2 atom followed by cleavage of the ansa linkage, which leads to inactivation of the antibiotic by preventing key …

Cafe Offers Funding For Mini-Sabbaticals, Missouri University Of Science And Technology

CAFE Announcements

No abstract provided.

Beyond Triplet: Unconventional Superconductivity In A Spin-3/2 Topological Semimetal, Hyunsoo Kim, Kefeng Wang, Yasuyuki Nakajima, Rongwei Hu, Steven Ziemak, Paul Syers, Limin Wang, Halyna Hodovanets, Jonathan D. Denlinger, For Full List Of Authors, See Publisher's Website.

Physics Faculty Research & Creative Works

In all known fermionic superfluids, Cooper pairs are composed of spin-1/2 quasi-particles that pair to form either spin-singlet or spin-triplet bound States. The "spin" of a Bloch electron, however, is fixed by the symmetries of the crystal and the atomic orbitals from which it is derived and, in some cases, can behave as if it were a spin-3/2 particle. The superconducting state of such a system allows pairing beyond spin-triplet, with higher spin quasi-particles combining to form quintet or septet pairs. We report evidence of unconventional superconductivity emerging from a spin-3/2 quasi-particle electronic structure in the half-Heusler semimetal YPtBi, a …

Efficiency Of Solid Inclusion Removal From The Steel Melt By Ceramic Foam Filter: Design And Experimental Validation, Soumava Chakraborty, Ronald J. O'Malley, Laura Bartlett, Mingzhi Xu

Materials Science and Engineering Faculty Research & Creative Works

An investigation was performed to measure the efficiency of solid alumina inclusion removal by filtration during casting. A mold design was developed using modeling software to produce two castings that fill simultaneously, one with a filter and the other without a filter. The design avoided vortex formation and thus air entrainment, which helped to avoid reoxidation inside the mold cavity. Samples from these castings were analyzed utilizing an SEM/EDS system with automated feature analysis (AFA) to measure the efficiency of inclusion removal using a 20 ppi zirconia foam filter. This study also documents the occurrence of inclusion flotation and agglomeration …

The Missouri Miner, April 5, 2018

The Missouri Miner Newspaper

No abstract provided.

Epoxy Phosphonate Ester As A Coupling Agent For Transition Metal And Metal Oxide Surfaces, Thomas P. Schuman

Chemistry Faculty Research & Creative Works

A method for surface modification of a substrate comprising surface oxide and/or hydroxy groups, with a compound comprising an ester group and an epoxy ring, wherein the epoxy group remains intact after the reacting. A method for surface modification of a substrate comprising surface oxide and/or hydroxy groups, with a compound comprising an ester group and a functionalized epoxy ring, wherein the functionalized epoxy group remains intact after the reacting. A composite material comprising surface-modified metal oxide nanoparticles dispersed within a polymeric material, wherein the surface modification comprises a compound comprising an ester group and an epoxy ring is also …

Test Standard For Determining The Rotational-Lateral Stiffness Of Beam-To-Panel Assemblies, 2017 Edition, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

Test Standard For Determining The Effective Area Of Cold-Formed Steel Compression Members, 2017 Edition, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

North American Standard For Cold-Formed Steel Framing -- Product Data, 2017 Edition, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

Test Standard For Determining The Strength And Deformation Characteristics Of Cold-Formed Steel Connections, 2017 Edition, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

Test Standard For Determining The Flexural Strength Reduction Factor Of Purlins Supporting A Standing Seam Roof System, 2017 Edition, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

Test Standard For Determining The Strength Of A Roof Panel-To-Purlin-To-Anchorage Device Connection, 2017 Edition, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

Test Standard For Determining The Web Crippling Strength Of Cold-Formed Steel Flexural Members, 2017 Edition, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

Test Standard For Determining The Distortional Buckling Strength Of Cold-Formed Steel Hat-Shaped Compression Members, 2017 Edition, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

Test Standard For Determining The Strength And Deformation Behavior Of Joist Connectors Attached To Cold-Formed Steel Structural Framing, 2017 Edition, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

Test Standard For Determining The Strength And Deformation Behavior Of Hold-Downs Attached To Cold-Formed Steel Structural Framing, 2017 Edition, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

Test Standard For Determining The Load-Carrying Strength Of Panels And Anchor-To-Panel Attachments For Roof Or Siding Systems Tested In Accordance With Astm E1592, 2017 Edition, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

Test Standard For Determining The Flexural Strength Of Cold-Formed Steel Hat-Shaped Members, 2017 Edition, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

Test Standard For Determining The Strength And Stiffness Of Cold-Formed Steel Diaphragms By The Cantilever Test Method, 2017 Edition, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

Test Standard For Determining The Uniform And Local Ductility Of Carbon And Low-Alloy Steels, 2017 Edition, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

Test Standard For Determining The Tensile And Shear Strengths Of Steel Screws, 2017 Edition, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

Technology Supports For Individuals With Disabilities In New York State: A Survey Of Current Status, Margaret M. Laskowski, Dana R. Reinecke, Hsin-Liang Chen

University Libraries Faculty Research & Creative Works

This exploratory study examines the current use of instructional technology, and assistive technologies for support of individuals with learning disabilities as well as other disabilities in New York State.

The researchers used SurveyMonkey and postings on social media websites for various professional organizations to solicit responses to a questionnaire from individuals working with or caring for persons with disabilities. A small sample of responses (N=122) revealed barriers to the use of technology, as well as the preferred type and most convenient for persons with disabilities. School districts may want to use this survey with students, parents and community members.

Scholars' Mine Quick Facts April 2018, Nancy S. Krost

Scholars’ Mine Statistics

Scholars' Mine Quick Facts are monthly reports of downloads, page hits, and other information about works in the institutional repository of Missouri S&T. A map with downloads by region is also included.

English “Strafe”: Suggestion On The Semantic Shift ‘Punish By Shelling’ (Wwi) To ‘Fire A Machine Gun From A Low-Flying Airplane’ (Wwii) [Student Suggestion], Gerald Leonard Cohen

Arts, Languages and Philosophy Faculty Research & Creative Works

No abstract provided.

A Straightforward Updating Criterion For 2-D/3-D Hybrid Discontinuous Galerkin Time-Domain Method Controlling Comparative Error, Wending Mai, Ping Li, C. G. Li, Ming Jiang, Wenqu Hao, Lijun Jiang, Jun Hu

Electrical and Computer Engineering Faculty Research & Creative Works

The 2-D/3-D hybrid discontinuous Galerkin time-domain (DGTD) method is efficient to deal with structures that contain elements capable of 2-D simplification. To separate 2-D elements from 3-D ones, a criterion for approximation error manipulation is required. However, in the latest reported technique, this kind of criterion is derived from the causality principle and the Courant-Freidrichs-Lewy constraint, and thus is indirect and inessential to 2-D simplification. As a result, some elements capable of 2-D simplification are unnecessarily flagged as 3-D ones, deteriorating efficiency dramatically. Moreover, controlling absolute error, the traditional criterion is not flexible for structures with complex mode distribution. In …

Study On The Effect Of Iron-Based Deoxidizing Inhibitors For Coal Spontaneous Combustion Prevention, Chaoyu Hao, Yanling Chen, Jiren Wang, Cunbao Deng, Guang Xu, Fengwei Dai, Rui Si, Hongfei Wang, Haoyu Wang

Mining Engineering Faculty Research & Creative Works

To improve the prevention of spontaneous coal combustion, reduced iron powder and other ingredients should be added together to form an iron-based deoxidizing inhibitor, with the dual effect of oxygen consumption and inhibition. The oxygen consumption rate of the inhibitor was studied through experiments. According to the theory of coordination resistance, the coordination resistance of Fe³⁺ was studied via the density functional method. Subsequently, a comparative experiment of the effects on spontaneous coal combustion was conducted. The research shows that several kinds of common resistance agents that are added to the reduced iron powder can consume oxygen. However, the …

Review Of The Methods For Determination Of Reactive Oxygen Species And Suggestion For Their Application In Advanced Oxidation Induced By Dielectric Barrier Discharges, Emile S. Massima Mouele, Olanrewaju Ojo Fatoba, Omotola Babajide, Kassim O. Badmus, Leslie F. Petrik

Mining Engineering Faculty Research & Creative Works

Advanced oxidation processes (AOPs) particularly non-thermal plasmas based on electrical discharges have been widely investigated for water and wastewater treatment. Dielectric barrier discharges (DBDs) generate large amounts of selective and non-selective reactive oxygen species (ROS) such as ozone, hydrogen peroxide, atomic oxygen, superoxide molecular anions and hydroxyl radicals, having been proved to be efficient for water decontamination among various forms of electrical discharge systems. The detection and quantification methods of these oxygen species in non-thermal plasmas have been reviewed. However, their application in dielectric barrier discharge has not been well studied. It is therefore imperative to summarize the various detection …