Results 121 to 130 of about 12,496 (247)
Tunable Plasmon‐Enhanced Wide‐Angle Terahertz Perfect Absorption via Lorentz Media
Nanophotonics, Volume 15, Issue 11, 13 June 2026.A planar graphene‐Lorentz‐DBR structure realizes wide‐angle terahertz perfect absorption through a composite phase‐amplitude matching mechanism. The Lorentz dielectric provides dispersive phase compensation and controlled loss, whereas graphene supports dissipative coupling, enabling high absorption up to 80° incidence and multichannel spectral ...
Yuxuan Zhou
wiley +1 more source
, 2017 <p><strong>DESCRIPTION</strong></p> <p>DBR dataset is an environmental audio dataset created for the Bachelor's Seminar in Signal Processing in Tampere University of Technology. The samples in the dataset were collected
Ville-Veikko Eklund +1 more
core +1 more source
, 2006 应用特征矩阵法研究了非均匀渐变界面Al_(0.9)Ga_(0.1)As/AlyGa_(1-y)As/GaAs/Al_xGa_(1-x)As DBR的光学特性.建立了非均匀渐变界面AlyGa1-yAs的折射率模型，并得到了渐变界面特征矩阵的解析解，通过特征矩阵法分别计算了突变GaAs/Al_(0.9)Ga_(0.1)As DBR和渐变DBR的反射谱和反射相移，分析了非均匀渐变层对DBR光学特性的影响，对渐变DBR，需要在DBR前面再增加一定厚度的非均匀渐变相位匹配层才能使整个DBR满足中心波长相位匹配条件，
曹玉莲 +5 more
core
Cross-Coupled Microstrip Dual Behavior Resonator (DBR) Filter
, 2006 International audienceThis paper deals with the design of cross-coupled microstrip dual behavior resonator (DBR) filters. It evidences the several ways of cross-coupling DBR filters to get, in particular, either a high level rejection or a flat group ...
Eric Rius +11 more
core +1 more source
Variations of community composition change rate, Slnλ, during the study periods for DBR and BCI.
, 2015 The solid lines are based on the true values and the dashed lines are based on the fitted values. (a) Community I in DBR, (b) Community II in DBR, (c) Community I in DBR with adjusted intervals, (d) Community II in DBR with adjusted intervals, and (e ...
Xiao-Yu Chang (748984) +5 more
core +1 more source
Chinese Medical Journal. Background:. The achievement of an optimal return to sport (RTS) has remained a key goal after sports-related injuries, with the ongoing debate on the effectiveness of different surgical approaches for anterior cruciate ligament (ACL) rupture.
Xinjie Wang +12 more
doaj +1 more source
Optics ExpressWe report spatiotemporally tunable mode coupling between Fabry-Prot (F-P) resonances and dark or bright modes in the weak- or strong-coupling regime in an all-dielectric coupled system, which consists of an F-P microcavity formed by two distributed Bragg reflectors (DBR) and a metasurface made of periodic nanocavities.
Zhiyu Chang +3 more
openaire +2 more sources
, 2010 通过传输矩阵模型,理论研究了不同端面反射的存在对取样光栅分布Bragg反射(SG-DBR)镜以及集成半导体放大器(SOA)的SG-DBR镜反射谱的影响,进而研究了端面反射的存在对SG-DBR激光器以及集成SOA的激光器模式的影响,结果表明,端面反射的存在会使取样光栅的各级反射峰由1个分裂为2个甚至多个,并可能使边峰的强度高过零级峰,这将会严重恶化SG-DBR激光器及其集成SOA的激光器模式特性和调谐特性.理论分析与实验结果基本吻合.当端面的反射率小于0.01时,端面反射对于SG ...
边静 +5 more
core
International Journal of Qualitative MethodsMany issues and challenges face research design and research teams that want to become more inclusive, especially in large-scale research projects involving many stakeholders. This article explores an approach called Design-Based Research (DBR).
Alain Stockless, Sophie Brière
doaj +1 more source