Tests of Welded Copper Joints

The Copper and Brass Research Associatio

Tensile Tests and Metallurgical Studies of Welded Copper Joints

Copper and Brass Research Associatio

Determination of Heterogeneous Equilibrium From Electromotive Force Measurements

43 p.Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1956.U of I OnlyRestricted to the U of I community idenfinitely during batch ingest of legacy ETD

A STUDY OF URANIUM-FISSIUM ALLOYS CONTAINING TECHNETIUM. Addendum to Final Report--Metallurgy Program 4.1.23

The equilibrium microstructures and the kinetics of gamma decomposition of uranium-fissium alloys containing technetium were studied and compared with the characteristics of similar alloys which did not contain technetium. The technetium concentration in the fissium was 12.5 wt% and the uranium-fissium alloys that were examined contained from 3 to 10 wt% fissium. The presence of technetium did not result in the presence of any new phases; it produced only minor changes in the phase relationshipB and in the stability of the gamma- uranium solid solution. Studies of aging behavior and of the structure of slowly cooled alloys indicated that the gamma is slightly more sluggish in its transformation characteristics in the presence of technetium. On this basis, it appears that the property measurements made earlier on uranium --fissium alloys which did not contain technetium can be reliably applied to true fissium alloys. (auth

Mitochondrial protein interaction mapping identifies regulators of respiratory chain function.

Mitochondria are essential for numerous cellular processes, yet hundreds of their proteins lack robust functional annotation. To reveal functions for these proteins (termed MXPs), we assessed condition-specific protein-protein interactions for 50 select MXPs using affinity enrichment mass spectrometry. Our data connect MXPs to diverse mitochondrial processes, including multiple aspects of respiratory chain function. Building upon these observations, we validated C17orf89 as a complex I (CI) assembly factor. Disruption of C17orf89 markedly reduced CI activity, and its depletion is found in an unresolved case of CI deficiency. We likewise discovered that LYRM5 interacts with and deflavinates the electron-transferring flavoprotein that shuttles electrons to coenzyme Q (CoQ). Finally, we identified a dynamic human CoQ biosynthetic complex involving multiple MXPs whose topology we map using purified components. Collectively, our data lend mechanistic insight into respiratory chain-related activities and prioritize hundreds of additional interactions for further exploration of mitochondrial protein function

Physics-Based Modeling of Electric Operation, Heat Transfer, and Scrap Melting in an AC Electric Arc Furnace

Electric arc furnaces (EAF) are complex industrial plants whose actual behavior depends upon numerous factors. Due to its energy intensive operation, the EAF process has always been subject to optimization efforts. For these reasons, several models have been proposed in literature to analyze and predict different modes of operation. Most of these models focused on the processes inside the vessel itself. The present paper introduces a dynamic, physics-based model of a complete EAF plant which consists of the four subsystems vessel, electric system, electrode regulation, and off-gas system. Furthermore the solid phase is not treated to be homogenous but a simple spatial discretization is employed. Hence it is possible to simulate the energy input by electric arcs and fossil fuel burners depending on the state of the melting progress. The model is implemented in object-oriented, equation-based language Modelica. The simulation results are compared to literature data