Results 171 to 180 of about 1,041,495 (312)
Estimation and decomposition of overall (economic) efficiency into technical and allocative components goes back to Farrell (1957). However, in a cross-sectional framework joint econometric estimation of efficiency components has been mostly confined to ...
Tsionas, Efthymios, Kumbhakar, Subal
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Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading
Advanced Engineering Materials, EarlyView.The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley +1 more source
NONPARAMETRIC ANALYSIS OF COST MINIMIZATION AND EFFICIENCY
This study examines cost minimizing behavior and efficiency measures for a sample of Kansas wheat producers, using nonparametric methods. As such, it verifies the applicability of nonparametrics within a production economic framework.nonparametrics, WACM,
Wongcharupan, Metha, Lemberg, Beth
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Advanced Engineering Materials, EarlyView.Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich +3 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies +2 more
wiley +1 more source
Robust Spot Melting by 3D Spot Arrangements in Electron Beam Powder Bed Fusion
Advanced Engineering Materials, EarlyView.This work proposes an approach to replace separately melted contours for spot melting in electron beam powder fusion. Adapting the spot arrangements close to the contour combined with stacking yields a comparable surface quality without the inherent challenges of separate contours, as demonstrated, by electron optical images and roughness measurements.
Tobias Kupfer +4 more
wiley +1 more source
Sustainable closed-loop supply chain management for a two-warehouse system with trade-credit and emissions constraints under dynamic demand. [PDF]
Sci RepVishnoi M, Deepi D, Singh SR, Sarkar B.
europepmc +1 more source
Advanced Engineering Materials, EarlyView.A two‐dimensional multiscale finite element analysis framework was established for the first‐generation MoSiBTiC alloy, and the mechanical and fracture‐related parameters of the constituent phases were calibrated through experiments and simulations. The framework provides a basis for analyzing crack propagation behavior in its complex microstructure ...
Junfeng Du +4 more
wiley +1 more source
Niche markets of agricultural products are experiencing rapid growth. One such market is organic pork. Organic production typically demands specific production conditions that can be cost increasing.
Honeyman, Mark +3 more
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Technoeconomic and Environmental Assessments of CO<sub>2</sub> Methanation and Liquefaction for Climate Mitigation. [PDF]
ACS Sustain Chem EngChoe C +6 more
europepmc +1 more source