Results 1 to 10 of about 2,820,689 (381)

Low-loss singlemode PECVD silicon nitride photonic wire waveguides for 532-900 nm wavelength window fabricated within a CMOS pilot line [PDF]

open access: yesIEEE Photonics Journal, 2013
PECVD silicon nitride photonic wire waveguides have been fabricated in a CMOS pilot line. Both clad and unclad single mode wire waveguides were measured at lambda = 532, 780, and 900 nm, respectively. The dependence of loss on wire width, wavelength, and
Baets, Roel   +14 more
core   +2 more sources

Measurement of the $\mathrm e^+\mathrm e^-\rightarrow\mathrm\pi^+\mathrm\pi^-$ Cross Section between 600 and 900 MeV Using Initial State Radiation [PDF]

open access: yes, 2015
We extract the $e^+e^-\rightarrow \pi^+\pi^-$ cross section in the energy range between 600 and 900 MeV, exploiting the method of initial state radiation.
Ablikim, M.   +402 more
core   +6 more sources

Evaluation of the Role of Dry and MQL Regimes on Machining and Sustainability Index of Strenx 900 Steel

open access: yesLubricants, 2022
Sustainable technologies draw attention in the machining industry thanks to their contributions in many aspects such as ecological, economic, and technological.
Abdullah Aslan   +2 more
doaj   +1 more source

From cataloging to the portal: the digital library of 20th century literature of the National Central Library of Rome

open access: yesGriseldaonline, 2021
The portal of the Italian literature of the 20th century created by the National Central Library of Rome is presented, in which the cataloging and digitization projects of archives and author libraries have converged.
Andrea De Pasquale
doaj   +1 more source

Compact Rectifier Circuit Design for Harvesting GSM/900 Ambient Energy

open access: yesElectronics, 2020
In this paper, a compact rectifier, capable of harvesting ambient radio frequency (RF) power is proposed. The total size of the rectifier is 45.4 mm × 7.8 mm × 1.6 mm, designed on FR-4 substrate using a single-stage voltage multiplier at 900 MHz. GSM/900
S. Muhammad   +5 more
semanticscholar   +1 more source

Seven new narrowly endemic species of Gulella Pfeiffer, 1856 from eastern South Africa (Gastropoda, Streptaxidae) and status revision for another

open access: yesEuropean Journal of Taxonomy, 2023
Seven new species of very small Gulella Pfeiffer, 1856 are described from two regions in the interior of south-eastern South Africa within the Maputaland-Pondoland-Albany biodiversity hotspot.
Mary L. Cole, David G. Herbert
doaj   +1 more source

Bryozoan statoblasts from lake sediments in Madagascar, including two new species

open access: yesEuropean Journal of Taxonomy, 2023
Madagascar is a freshwater biodiversity hotspot, yet the current understanding of freshwater bryozoan diversity is limited. Using a dissecting microscope, bryozoan statoblasts were collected during macrofossil analysis of a sediment core, which was ...
Timothy S. Wood   +2 more
doaj   +1 more source

Description of the male of Craugastor yucatanensis (Lynch, 1965) (Anura, Craugastoridae), its advertisement call, and additional data on females [PDF]

open access: yesZooKeys, 2019
The male of Craugastor yucatanensis (Lynch, 1965) is described for the first time, as the original description was based on four females. The advertisement call is described and additional morphological data on females are presented. Also, information is
Rubén Alonso Carbajal-Márquez   +5 more
doaj   +3 more sources

There is no

open access: yesNuclear Physics A, 2001
In the I=0 sector there are more scalar mesons than can fit in one $q{\bar q}$ nonet. Consequently, many have claimed that there is in fact more than one multiplet, perhaps both $q{\bar q}$ and $qq{\bar {qq}}$. Such proposals require the existence of at least two strange isodoublets (and their antiparticles). The current PDG Tables list just one state,
Cherry, S. N., Pennington, M. R.
openaire   +4 more sources

A tentative step towards healthy public policy [PDF]

open access: yes, 2004
More consistent attention to implementing healthy public policy, and amassing the evidence for it, are urgently ...
Joffe, M, Mindell, J
core   +1 more source

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