Results 121 to 130 of about 8,419 (298)

Identification and correlation of the Aso‐3 tephra in the Omaezaki area, central Japan: A valuable key stratum for the MIS 6/5 transition period

Journal of Quaternary Science, EarlyView.
ABSTRACT The Aso‐3 tephra is one of the most significant widespread marker layers from the Middle to Late Pleistocene, generated by a large caldera‐forming eruption at the Aso volcano in Kyushu, southwestern Japan. Despite its importance, a distal co‐ignimbrite ash correlative has yet to be clearly identified, primarily because although volcanic glass ...
Toshinori Sasaki, Takuya Morimoto, Tatsuyuki Ueno, Kazuo Mizoguchi, Norihisa Goto, Hisanori Ominami, Shohei Onaka   +6 more
wiley   +1 more source

High Sensitivity Temperature Sensing of Long-Period Fiber Grating for the Ocean. [PDF]

Sensors (Basel), 2023
Qu J, Zhang H, Shi X, Li C, Jia D, Liu T, Su R.   +6 more
europepmc   +1 more source

Optical Fiber Link Failure Prediction System Based on Long-Period Fiber Grating Mechanical Sensor

Proceedings, 2018
High data rate optical fiber links are usually deployed in core IP networks to transport bulky [..]
Nelson Sotomaior, Bruno Teixeira, João Azevedo, Paulo Caldas, Gaspar Rego, Pedro Pinto   +5 more
doaj   +1 more source

Nanoscale resolution interrogation scheme for simultaneous static and dynamic fiber Bragg grating strain sensing

, 2012
A combined interrogation and signal processing technique which facilitates high-speed simultaneous static and dynamic strain demodulation of multiplexed fiber Bragg grating sensors is described.
Perry, Marcus, Niewczas, Pawel, Johnston, Michael, Orr, Philip   +3 more
core   +1 more source

Optical Kerr Gating as a Strategy for Noise Reduction in Femtosecond Stimulated Raman Spectroscopy

Journal of Raman Spectroscopy, EarlyView.
We report an experimental approach, where an Optical Kerr gate is incorporated with Femtosecond Stimulated Raman Spectrometry (FSRS). The gate functions as a temporal filter that preferentially suppresses the FSRS inherent background. FSRS spectra are reported with the Kerr‐gated methodology with significantly improved SNR compared to the conventional ...
Spyridon Kaziannis, Lazaros Varvarezos, Sotiris Danakas, Elissavet Karkadaki, Cesar Bernando, Miroslav Kloz   +5 more
wiley   +1 more source

Fabrication Long Period Fiber Bragg Grating Based on Photonic Crystal Fiber Using CO2 Laser

مجلة النهرين للعلوم الهندسية
Photonic crystal fibers (PCFs) are generally divided into two categories: solid-core photonic crystal fibers and hollow-core photonic crystal fibers. In this paper, a long-period fiber Bragg grating (LPFBG) was experimentally fabricated in a hollow-core
Nidaa L. Mahgoob, Anwaar A. Al-Dergazly
doaj   +1 more source

Detecting Antibiotic Resistance in Strains of Selected Gram‐Negative Bacterial Species Using Raman Spectroscopy

Journal of Raman Spectroscopy, EarlyView.
Raman spectroscopy successfully identified antibiotic‐resistant Gram‐negative strains. Resistant strains of four bacterial species were discriminated from sensitive ones with 99.1% accuracy using PLS regression. The method allows for rapid, label‐free detection of antibiotic resistance.
Fernanda Sant Ana de Siqueira e Oliveira, Adriano Moraes da Silva, Marcos Tadeu T. Pacheco, Landulfo Silveira Jr.   +3 more
wiley   +1 more source

Advances on Optical Fiber Sensors

Fibers, 2013
In this review paper some recent advances on optical fiber sensors are reported. In particular, fiber Bragg grating (FBG), long period gratings (LPGs), evanescent field and hollow core optical fiber sensors are mentioned. Examples of recent optical fiber
Luciano Mescia, Francesco Prudenzano
doaj   +1 more source

A grating-based OCDMA coding:decoding system incorporating a nonlinear optical loop mirror for improved code recognition and noise reduction

, 2002
We demonstrate an elementary grating-based optical code division multiple access (OCDMA) code generation and recognition system incorporating a nonlinear optical loop mirror (NOLM) within the receiver.
Teh, P.C., Ibsen, M., Petropoulos, P., Richardson, D.J., Lee, J.H.   +4 more
core   +1 more source

Impact of tear morphology and meniscal laterality on repair failure in stable knees: Medial repairs show over twofold risk

Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose To evaluate the failure rates of all‐inside meniscal repair based on tear morphology in stable knees (i.e., without concomitant anterior cruciate ligament reconstruction [ACLR]) and to assess the influence of failure. Methods This retrospective cohort study included 1008 patients who underwent arthroscopic all‐inside meniscal repair ...
Christoffer von Essen, Riccardo Cristiani, Dzan Rizvanovic, Anders Stålman   +3 more
wiley   +1 more source