Results 81 to 90 of about 5,489 (194)

Setup and Characterization of a Fiber Brillouin Amplifier Module for Optical Frequency Transfer Over Interferometric Fiber Links

open access: yesAnnalen der Physik, Volume 537, Issue 5, May 2025.
This study offers a comprehensive overview of the design of fiber Brillouin amplifier modules (FBAMs) for stabilized optical frequency dissemination. It presents a thorough evaluation of the amplification characteristics across various optical signal and pump power levels.
Alexander Kuhl   +4 more
wiley   +1 more source

Caesium‐Iodide‐Assisted Synthesis of High‐Quality, Stable, and Robust Lead‐Free Perovskite Quantum Dots

open access: yesSmall Methods, Volume 9, Issue 4, April 22, 2025.
This study presents a straightforward method for synthesizing high‐quality CsSnI3‐based perovskite quantum dots (TQDs) using a mixed cesium source of Cs2CO3 and CsI. The inclusion of CsI enhances the iodine‐to‐tin ratio, leading to smaller, more uniform TQDs with improved crystallinity, photoluminescence, and antioxidation properties.
Shiang Li   +6 more
wiley   +1 more source

Animal model to compare the effects of suture technique on cross-sectional compliance on end-to-side anastomoses [PDF]

open access: yes, 2017
Objective: An animal model has been developed to compare the effects of suture technique on the luminal dimensions and compliance of end-to-side vascular anastomoses.
Botta, U.   +6 more
core  

Powering the Future: Opportunities and Obstacles in Lead‐Halide Inorganic Perovskite Solar Cells

open access: yesAdvanced Science, Volume 12, Issue 11, March 20, 2025.
This review explores recent advancements, challenges, and future opportunities in the low‐cost fabrication of efficient inorganic perovskite solar cells (PSCs). It focuses on the manufacturing of PSCs under ambient conditions using low‐temperature processes.
Narendra Pai, Dechan Angmo
wiley   +1 more source

Vector Magnetic Fields and Current Helicities in Coronal Holes and Quiet Regions

open access: yes, 2010
In the solar photosphere, many properties of coronal holes (CHs) are not known, especially vector magnetic fields. Using observations from \emph{Hinode}, we investigate vector magnetic fields, current densities and current helicities in two CHs and ...
Bevington   +19 more
core   +1 more source

Luigi Vietti. L’invenzione della tradizione

open access: yesFestival dell'Architettura Magazine, 2019
Fin dagli anni universitari presso la Scuola di Architettura di Roma, Luigi Vietti (1903-1998) è interessato alle architetture della tradizione costruttiva minore. In alcuni suoi contributi critici, redatti nella prima metà degli anni trenta, riflette su
Giorgia Sala
doaj   +1 more source

On the estimate of magnetic non-potentiality of sunspots derived using Hinode SOT/SP observations: Effect of polarimetric noise

open access: yes, 2010
The accuracy of Milne-Eddington (ME) inversions, used to retrieve the magnetic field vector, depends upon the signal-to-noise ratio (SNR) of the spectro-polarimetric observations.
Bao   +19 more
core   +1 more source

Three resilient megastructures by Pier Luigi Nervi [PDF]

open access: yes, 2013
Resilience, as the ability of a structure to withstand threats and continue to function, it is normally related to durability and performance to accepted standards over time.
Cartiere Burgo SpA   +11 more
core   +1 more source

Defunding Higher Education: What Are the Effects on College Enrollment? [PDF]

open access: yes, 2012
Examines the effects of the state's higher education spending cuts on enrollment rates of eligible, highly prepared students at the University of California, California State University, and California Community Colleges systems.
Hans P. Johnson
core  

Merge or Concentrate? Some Insights for Antitrust Policy [PDF]

open access: yes
Why do some firm acquisitions give rise to a single brand name, and why, following others, all brands subsist? What are the welfare consequences of each option upon joining firms, rivals, and consumers from each of these groups?
Margarida Catalão-Lopes
core  

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