Results 151 to 160 of about 8,971 (305)

High‐Pressure Synthesis and Chemical Bonding of Mg3BiN

Zeitschrift für anorganische und allgemeine Chemie, EarlyView.
The anti‐perovskite Mg3BiN is obtained by high‐pressure high‐temperature reaction of Mg–Bi mixture with boron nitride serving as crucible material. The compound is electron precise with essentially ionic bonding, and DOS calculations indicate semiconducting behavior.
Teuta Neziraj, Ulrich Burkhardt, Marcus Schmidt, Walter Schnelle, Yuri Grin, Ulrich Schwarz   +5 more
wiley   +1 more source

Impact of Metal-Functionalized Fullerenes on the Proliferation of Pathogenic Fungi. [PDF]

ACS Omega
Ibrahim AA, Khan T, LaJeunesse D, Obare SO, Dellinger AL.   +4 more
europepmc   +1 more source

Threshold Currents of Vacuum Arcs With Tungsten and Copper Cathodes

High Voltage, EarlyView.
ABSTRACT This paper presents the results of an experimental study aimed at determining the threshold current for triggering a vacuum arc discharge, the probability of arc ignition and the average arc operation time depending on the current for tungsten and copper electrodes.
P. S. Mikhailov, I. L. Muzyukin, I. V. Uimanov, D. L. Shmelev, S. A. Barengolts   +4 more
wiley   +1 more source

Evaluation of nonmetallic thermal protection materials for the manned space shuttle. Volume 1, task 1: Assessment of technical risks associated with utilization of nonmetallic thermal protection system [PDF]

Technical problems of design and flight qualification of the proposed classes of surface insulation materials and leading edge materials were reviewed. A screening test plan, a preliminary design data test plan and a design data test plan were outlined ...
Duckworth, W. H., Foster, E. L., Kirkhart, F. P., Kistler, C. W., Ungar, E. W., Wilkinson, W. H.   +5 more
core   +1 more source

Frictional resistance in orthodontic archwires: A comprehensive review. [PDF]

J Orthod Sci
Alemran MA, Abbassy MA, Zawawi KH.
europepmc   +1 more source

Network Structure and the Efficiency Gains from Mergers: Evidence from U.S. Freight Railroads

The RAND Journal of Economics, EarlyView.
ABSTRACT The trade‐off between market power and efficiency gains is central to antitrust analyses of mergers, but empirical evidence quantifying efficiencies remains limited. Using transaction‐level data from U.S. freight railroads (1985–2005), this article quantifies merger‐induced cost efficiencies, driven mainly by eliminating inter‐railroad ...
Yanyou Chen
wiley   +1 more source

Nonmetallic tension band fixation is a viable and low-complication surgical technique in patellar fractures: a five-year retrospective study. [PDF]

Eur J Orthop Surg Traumatol
Giuseppe R, Michele R, Luca F, Michele G, Giuseppe G, Valentina M, Giustra F, Bosco F, Camarda L.   +8 more
europepmc   +1 more source

Simulation of Inclusion Particle Motion Behavior under Interfacial Tension in Continuous Casting Mold. [PDF]

Materials (Basel), 2022
Siddiqui MIH, Albaqami A, Arifudin L, Alluhydan K, Alnaser IA.   +4 more
europepmc   +1 more source

Performance of the Direct Current Electric Potential Difference (DCEPD) Method for Crack Extension Measurement in Fracture Mechanics Specimens Exhibiting Split Delaminations

Fatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT This work investigates the performance of the direct current electric potential difference (DCEPD) method for measuring crack extension (∆a$$ \Delta a $$) during fracture toughness tests of ductile steels exhibiting delaminations perpendicular to the main crack plane, known as splits.
Sergio Luis Gonzalez Assias, Juan Elías Perez Ipiña, Hector Guillermo Kotik   +2 more
wiley   +1 more source

Quantifying Influencing Factors of Dioxin Removal in Fly Ash Pyrolysis Through Meta-Analysis and Structural Equation Modeling. [PDF]

Toxics
He T, Tan S, Su Q, Chen F, Xie C, Zhong Y, Zhang S, Ding J.   +7 more
europepmc   +1 more source