Results 191 to 200 of about 290,509 (308)

A comment on the relationship between firms' size and growth rate [PDF]

open access: yes
Since the seminal work of Pareto, many empirical analyses suggested that the distribution of firms size is characterized by an asymptotic power like behavior.
Giulio Bottazzi
core  

Historical Foundation and Practical Guideline for Ferroelectric Switching Kinetic Studies

open access: yesAdvanced Functional Materials, EarlyView.
The P and U pulses in the conventional PUND measurements are not identical because of the interplay between switching current and the measurement circuit components. This circuit effect can lead to a shift in polarization transients and misinterpreted physics in the switching kinetics.
Yi Liang, Pat Kezer, John T. Heron
wiley   +1 more source

Topics Involving the Gamma Distribution: the Normal Coefficient of Variation and Conditional Monte Carlo.

open access: yes, 2007
A transformation of the sample coefficient of variation ($CV$) for normal data is shown to be nearly proportional to a $chiˆ2$ random variable.
Boyer, Joseph Guenther
core  

Exciton Binding Energy of Phosphorescent Emitter Molecules in Organic Light‐Emitting Diodes

open access: yesAdvanced Functional Materials, EarlyView.
Energy level alignment is key to efficient OLED design, yet determining LUMO energies remains challenging. A methodology based on field‐induced dissociation and kinetic Monte Carlo simulations is presented to extract LUMO energies of iridium‐based phosphorescent emitters from their exciton binding energy.
Hiroki Tomita   +6 more
wiley   +1 more source

A novel extension of the exponential distribution with application in modeling complex lifetime and environmental data. [PDF]

open access: yesSci Rep
Aljohani HM   +8 more
europepmc   +1 more source

Ultrasensitive Anti‐Stokes Luminescence Thermometry in Transition Metal Dichalcogenide Monolayers

open access: yesAdvanced Functional Materials, EarlyView.
We demonstrate a highly sensitive nanothermometer using anti‐Stokes photoluminescence, also known as photoluminescence upconversion (UPL), in monolayer tungsten disulfide. A strong resonantly enhanced UPL is observed, confirming the central role of optical phonons in the PL upconversion mechanism.
Sharada Nagarkar   +6 more
wiley   +1 more source

Statistical inferences for type-II hybrid censoring data from the alpha power exponential distribution. [PDF]

open access: yesPLoS One, 2021
Salah MM   +5 more
europepmc   +1 more source

A New Hybrid Censoring Scheme and Some of Its Properties

open access: yes, 2012
[[abstract]]Recently, there are several censoring schemes that have been proposed and studied. They are, among others, Chen and Bhattacharyya (1988), Childs et al. (2003), Chandrasekar et al. (2004) and Balakrishnan et al.
Wen-Tao Huang(黃文濤), Kun-Cheng Yang
core  

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