Results 51 to 60 of about 12,496 (247)
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
Optical properties of DBR-lasers.
The Review of Laser Engineering, 1989 We have fabricated the InGaAsP/InP DBR-lasers with the wavelength range of 1.5μm, and investigated their optoelectronic properties. High sub-mode suppression ratios of exceeding 35 dB, and very narrow spectral linewidths less than 10 MHz were obtained. Wavelengthtuning was performed by an injection of tuning current in Bragg reflector region.
TAKAHASHI, Mitsuo +5 more
openaire +2 more sources
Business Strategy and the Environment, EarlyView.ABSTRACT The circular economy (CE) has become a major focus in energy and environmental (E&E) research, as it helps advance sustainable development, improve resource efficiency and alleviate environmental pressure. Even so, the literature is still fragmented, particularly in the CE themes it explores, the levels of analysis it adopts and the methods ...
Jahira Debbarma +2 more
wiley +1 more source
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
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
Fluorene‐based blue emitters: On the path to electrically pumped organic lasers
FlexMat, EarlyView.Electrically pumped efficient operation remains unrealized, a major challenge in optoelectronics. Fluorene‐based blue‐emitting semiconductors are promising gain media, thanks to their structural tunability and favorable emission properties. This review summarizes recent advances, highlights their reliability and versatility in lasing, and outlines key ...
Yong Yan +7 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
doaj +1 more source
ADBR: Accelerated Depth-Based Routing for Underwater Sensor Networks
JITCE (Journal of Information Technology and Computer Engineering), 2022 It is challenging to propose an efficient routing algorithm for Underwater Wireless Sensor Networks (UWSNs) in terms of packet delivery ratio, end-to-end delay of packet delivery from the source to the destination, and energy consumption. The reasons of
Abdolreza Andalib +4 more
doaj +1 more source
Journal of Employment Counseling, EarlyView.ABSTRACT Career guidance in schools is often delivered by counselors who take on instructional roles. Video vignettes are widely used in teacher education. We developed vignettes for counselor training in classroom‐based guidance in Germany. This study examines how prospective counselors engage with these vignettes and how this relates to changes in ...
Teresa Giek +2 more
wiley +1 more source