Results 101 to 110 of about 50,327,648 (262)
Estimating fixed-effect panel stochastic frontier models by model transformation [PDF]
Traditional panel stochastic frontier models do not distinguish between unobserved individual heterogeneity and inefficiency. They thus force all time-invariant individual heterogeneity into the estimated inefficiency. Greene (2005) proposes a true fixed-
Ho, Chia-Wen, Wang, Hung-Jen
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IEEE Journal of the Electron Devices SocietyWe propose an ultra-high density memory based on a 3D magnetic shift register (3D-SR) where the information data is stored in elongated magnetic nanotubes. The 3D device processing is compatible with existing process technologies.
Michael Quinsat +11 more
doaj +1 more source
High‐Efficiency Deep Blue Single‐Gaussian Europium(II) Emitters and Their Emitter‐Host Interactions
Advanced Functional Materials, EarlyView.Crown‐ether ligands and carborate anions enable vacuum‐processable Eu(II) emitters with efficient single‐Gaussian deep‐blue luminescence. Combined photophysical and computational analyses reveal that excited‐electron confinement and steric shielding of the europium center jointly govern compatibility with OLED host materials, establishing molecular ...
Mahmoud Soleimani +8 more
wiley +1 more source
Identification of Segments of French Urban Public Transport with a Latent Class Frontier Model [PDF]
This paper analyses technical efficiency of French urban public transport from 1995 to 2002 with unbalanced panel data. The latent class frontier model is used allowing the identification of different segments in the production frontier.
Carlos Barros, William Roy
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Journal of Multidisciplinary HealthcareXia Cao,1 Yusheng Tian,2 Hui Chen,2 Sihong Li,2 Jiansong Zhou2 1Health Management Center, The Third Xiangya Hospital of Central South University, Changsha, People’s Republic of China; 2National Clinical Research Center for Mental Disorders, and ...
Cao X, Tian Y, Chen H, Li S, Zhou J
doaj
Advanced Functional Materials, EarlyView.Autonomous scanning probe microscopy and multi‐objective Bayesian optimization navigate a ternary (Al,Sc,B)N combinatorial library. Registered photoluminescence, electron‐probe compositional mapping, and X‐ray diffraction connect local electromechanical function to defect‐sensitive emission, composition, and crystal structure.
Yu Liu +12 more
wiley +1 more source
Wheat Productivity, Efficiency, and Sustainability: A Stochastic Production Frontier Analysis [PDF]
This paper uses the farm-level survey data to estimate the stochastic frontier production function incorporating inefficiency effects. Sufficient evidence of positive relationship between wheat productivity and higher and balanced use of fertiliser ...
Iqbal, Muhammad +2 more
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Embedded Direct Ink Writing of Thermoset and Elastomeric Polymers via Frontal Polymerization
Advanced Functional Materials, EarlyView.Embedded frontal polymerization direct ink writing (FP‐DIW) combines frontal ring‐opening metathesis polymerization with embedded 3D printing to decouple deposition from curing. A yield‐stress support bath stabilizes low‐viscosity inks, while on‐demand thermal initiation enables controlled front propagation. This approach expands the accessible feature
Mohammad Tanver Hossain +12 more
wiley +1 more source
The shape of aggregate production functions: evidence from estimates of the World Technology Frontier [PDF]
The article provides multifaceted evidence on the shape of the aggregate country-level production function, derived from the World Technology Frontier, estimated on the basis of annual data on inputs and output in 19 highly developed OECD countries in ...
Jakub Growiec +3 more
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Advanced Functional Materials, EarlyView.Rapid microwave plasma torch engineering tunes crystal phases, carbon graphitization and oxygen‐vacancy defects in HfO2/C@C core‐shell fibrous membranes. Synergistic multi‐loss effects optimize impedance matching to deliver −65.75 dB reflection loss and a 7.37 GHz effective bandwidth for flexible electromagnetic wave absorption.
Qichao Ding +14 more
wiley +1 more source