Results 51 to 60 of about 16,192 (250)
Advances in Design-Based Research
Frontline Learning Research, 2014 Design-based research is a core methodology of the Learning Sciences. Historically rooted as a movement away from the methods of experimental psychology, it is a means to develop “humble” theory that takes into account numerous contextual effects for ...
Vanessa Svihla
doaj +1 more source
AIP Advances, 2023 A novel free-standing resonant-cavity-enhanced (RCE) Ge thin-film absorber is designed with a bottom distributed Bragg reflector (DBR) for infrared photodetection at 1550 nm wavelength based on a Si substrate.
Ching-Yu Hsu, Zingway Pei, Jia-Ming Liu
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South African Journal of Chemical Engineering, 2023 This study investigates the effectiveness of dragon blood resin (DBR) as a hydrophilic additive to prevent fouling on membrane surfaces. The input parameters, including DBR, Fe3+, NMP concentration, and coating time were studied to understand their ...
Aulia Chintia Ambarita +8 more
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Feedback Sensitivity of DBR-Type Laser Diodes [PDF]
IEEE Photonics Journal, 2021 It is shown theoretically that the feedback sensitivity of Distributed Bragg Reflector laser diodes with low-loss Bragg section decreases with the length of the Bragg section and also can be decreased by detuning from the Bragg peak. The effect of detuning is not only due to a change in effective linewidth enhancement factor, but also due to a change ...
openaire +3 more sources
Trench width dependant deeply etched surface-defined InP gratings for low-cost high speed DFB/DBR [PDF]
, 2011 In this paper we are reporting a fabrication process for multi-section telecom lasers based on surface defined lateral gratings, which is compatible with low-cost high-throughput nano-imprint lithography.
J. P. Reithmaier +10 more
core
Adjacent channel interference due to wavelength drift of a tunable laser in base-band and subcarrier multiplexed system [PDF]
, 2006 In this paper, we examine the amplitude and the duration of a wavelength drift of the tunable lasers at the most crucial moment, which is the time after the wavelength switch and measure the impact of this drift on the performance of the DWDM system ...
Barry, Liam P. +5 more
core +2 more sources
FB-DBR and DBR outputs based on the Number of Nodes.
, 2022 FB-DBR and DBR outputs based on the Number of Nodes.
Hamed Karimi (5475302) +2 more
core +1 more source
Form flows function: Learner‐centered game Re‐design in a STEM classroom
British Educational Research Journal, EarlyView.Abstract Re‐designing games facilitates interest‐driven learning and immerses learners in systems thinking. However, there are limited studies exploring how the form and function of tabletop games influence learners' design decisions and learning experiences. To address this gap, we conducted a mixed‐methods study in a STEM classroom in western Canada.
Farzan Baradaran Rahimi +2 more
wiley +1 more source
Novel 1064 nm DBR lasers combining active layer removal and surface gratings
Electronics Letters, 2021 The fabrication and characterisation details of novel distributed Bragg reflector (DBR) diode lasers emitting around 1064 nm are presented here. The AlGaAs epitaxial layer stack used here allows the removal of the active quantum wells in passive sections
O. Brox +8 more
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Biochemistry and Molecular Biology Education, EarlyView.ABSTRACT Low‐cost experiential modules are critical for democratizing biotechnology education, yet most undergraduates lack hands‐on experience with continuous‐culture bioreactor operations, which are fundamental to industrial bioprocessing. This study employed design‐based research across two iterative cycles (Fall 2024, n = 8; Fall 2025, n = 11) to ...
Russell K. Pirlo +2 more
wiley +1 more source