Results 51 to 60 of about 120,676 (317)

Methods of electron beam bunching

open access: yes, 2003
A review of electron beam bunching methods and new bunching methods are presented. Linear accelerator, storage ring and buncher technologies offer high-beam quality and short bunches necessary for operation of high efficiency, high-power, high-degree ...
Alferov   +17 more
core   +1 more source

Government Subsidy in the U.S. Mortgage Market: A Structural Analysis with Bunching

open access: yesJournal of Banking and Financial Economics
It is crucial to better understand the U.S. residential mortgage market, where the global financial crisis originated. In this paper, we develop an infinite-horizon continuous-time structural model to study the effects of the longstanding and widespread ...
Bowen Shi, Yunhui Zhao
doaj   +1 more source

VAT Notches, Voluntary Registration, and Bunching: Theory and U.K. Evidence

open access: yesReview of Economics and Statistics, 2019
Using administrative tax records for U.K. businesses, we document both bunching in annual turnover below the VAT registration threshold and persistent voluntary registration by almost half of the firms below the threshold.
L. Liu, Ben Lockwood, M. Almunia, E. Tam
semanticscholar   +1 more source

Temporal intensity interferometry: photon bunching in three bright stars [PDF]

open access: yes, 2017
We report the first intensity correlation measured with star light since Hanbury Brown and Twiss' historical experiments. The photon bunching g (2) (τ, r = 0), obtained in the photon counting regime, was measured for 3 bright stars, α Boo, α CMi, and β ...
W. Guerin   +7 more
semanticscholar   +1 more source

Drift-Induced Step Instabilities Due to the Gap in the Diffusion Coefficient [PDF]

open access: yes, 2004
On a Si(111) vicinal face near the structural transition temperature, the $1 \times 1$ structure and the $7 \times 7$ structure coexist in a terrace: the $1 \times 1$ structure is in the lower side of the step edge and the $7 \times 7$ structure in the ...
Degawa   +22 more
core   +2 more sources

Bus bunching as a synchronisation phenomenon [PDF]

open access: yesScientific Reports, 2018
Bus bunching is a perennial phenomenon that not only diminishes the efficiency of a bus system, but also prevents transit authorities from keeping buses on schedule.
Vee-Liem Saw   +4 more
semanticscholar   +1 more source

Near‐Infrared Emitting Lanthanide Catecholate Giant Single Crystals – Morphology Control and Photon Down‐Conversion

open access: yesAdvanced Functional Materials, EarlyView.
Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr   +7 more
wiley   +1 more source

Structural Porosity and Low Mineral Density in Enamel Rods Drive Molar Incisor Hypomineralisation

open access: yesAdvanced Functional Materials, EarlyView.
This study uses advanced imaging modalities on multiple length scales to show that molar‐incisor hypomineralization does not present as a locally homogeneous pathology. Instead, microstructural defects, characterized through non‐mineralized, protein‐rich sheaths and an altered mineral structure in between prism rods, resulting in local differences in ...
Katharina Jähn‐Rickert   +14 more
wiley   +1 more source

Fermion and boson pairs in beamsplitters and Mach–Zehnder interferometers

open access: yesJPhys Photonics
In this short topical review, we look at something typically considered trivial, but not given formally elsewhere—the behaviour of first multiple fermions, then multiple bosons, in a beamsplitter.
Jonte R Hance
doaj   +1 more source

Regulatory Employment Thresholds and Firm Size Distortions: Evidence from Ecuador

open access: yesEconomies
This study examines whether size-contingent employment regulations are associated with distortions in firm size distribution and whether such patterns are more consistent with productivity-based selection or with broader constraints on firm scaling ...
Gelmar García-Vidal   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy