Results 111 to 120 of about 12,496 (247)

可调谐三段式DBR激光器波长锁定系统

, 2011
提出了一种可精确锁定可调谐三段式DBR激光器输出波长的锁定系统。使用PC采集波长漂移信号并自动调节DBR激光器相区注入电流，使其输出波长在24~26℃的温度区间，稳定于四个C波段ITU 100GHz标准信道波长。波长误差在0.01~0.03nm范围内，边模抑制比大于40dB ...
叶楠, 王圩, 赵玲娟, 刘洋
core  

Circular grating DFB and DBR lasers : theory and experiment [PDF]

, 1992
Self-consistent coupled-wave theory for cylindrical waves -- Cylindrical waves in a planar dielectric waveguide -- Coupled-wave theory for cylindrical waves -- Coupling coefficients for circular gratings -- Simplified coupled-wave equations for ...
Wu, Chunmeng
core  

Stand characteristics of three forests in DBR.

, 2014
Stand characteristics of three forests in DBR.
Weiqiang Xu (519477), Liujing Huang (519478), Wei Meng (505670), Junhua Yan (519479), Xingzhao Liu (406161), Guohua Liang (406160), Kun Li (277035)   +6 more
core   +1 more source

Text Development for an Open‐Access Elementary Science Curriculum: Five Principles for Supporting the Use of Science Text

The Reading Teacher, Volume 80, Issue 1, July/August 2026.
ABSTRACT Integrating science and literacy in elementary education enhances student learning. Curriculum materials play a key role in providing teachers with resources and texts that support this integration. This paper presents five principles for using science texts to support science and literacy learning in elementary classrooms. The paper describes
Amanda C. Dahl, Tanya S. Wright
wiley   +1 more source

Introducing a Dental Caries Marking Software and Evaluate Radiologists’ Disagreement in Caries Detection Using this Software

Journal of Dental Biomaterial, 2015
Statement of Problem: Bitewing radiograph is the main reference for diagnosis of proximal and recurrent caries. There is no software for gathering and analyzing radiologists’ opinion in the field of caries detection on digital bitewing radiograph (DBR)
Baseri H, Rafeh R, Soltani Tafreshi F, Houshyar M, Khojastepour L   +4 more
doaj  

Nodal maximum standardised uptake value improves PSMA‐PET/CT‐based nodal staging in intermediate‐ and high‐risk prostate cancer

BJU International, Volume 138, Issue 1, Page 133-143, July 2026.
Objectives To evaluate whether nodal maximum standardised uptake value (SUVmax) improves the positive predictive value (PPV) of prostate‐specific membrane antigen (PSMA) positron emission tomography (PET)/computerised tomography (CT) for detecting lymph node invasion (LNI) in prostate cancer (PCa), and to develop clinical decision tools to guide ...
Alexandra S. Bruins Slot, Vera Sweere, Joris G. Heetman, Rick Hermsen, Lieke Wever, Jules Lavalaye, Maarten Vinken, Clinton D. Bahler, Mark Tann, Claudia Kesch, Tugce Telli, Wolfgang P. Fendler, Peter Ka‐Fung Chiu, Kwan Kit Wu, Fabio Zattoni, Laura Evangelista, Francesco Ceci, Marcin Miszczyk, Pawel Rajwa, Akihiro Matsukawa, Tamás Fazekas, Francesco Barletta, Alberto Briganti, Francesco Montorsi, Giorgio Gandaglia, Jean‐Paul A. Van Basten, Harm H. E. Van Melick, Roderick C. N. Van den Bergh, Giancarlo Marra, Timo F. W. Soeterik, Matthijs J. V. Scheltema, on behalf of the European Association of Urology‐Young Academic Urologists (EAU‐YAU) Prostate Cancer Working Group   +31 more
wiley   +1 more source

Growth of a Threatened Desert Fish Becomes Resource Dependent When Released From Temperature Limitation in a Regulated River

Freshwater Biology, Volume 71, Issue 7, July 2026.
ABSTRACT Growth of ectotherms typically positively correlates with increasing temperature towards an optimal temperature range, followed by a decline in growth when temperatures exceed the optimal temperature range for that organism. When temperature is within or close to the optimal range, food availability and other environmental factors can play ...
Lindsay E. Hansen, Drew E. Eppehimer, Maria C. Dzul, Bridget R. Deemer, Charles B. Yackulic   +4 more
wiley   +1 more source

Zur Umwandlung von Triazatrimethincyaninen in Azamethincyanine (Kinetik und Chemismus)

CHIMIA, 1966
H. Balli, F. Kersting
doaj   +1 more source

Quantum Dynamics Simulations of Polariton Transport in a Bloch Surface Wave Cavity

Nanophotonics, Volume 15, Issue 12, 25 June 2026.
Polariton Transport Quantum Dynamics for molecules (purple dots) collectively coupled to a Bloch Surface Wave Cavity. Lower panels show the polariton dispersion relation. ABSTRACT Coupling excitons to quantized cavity photonic modes can significantly enhance the spatial and temporal range of excitonic transport.
Santanu Poddar, Pengfei Huo
wiley   +1 more source

Polymethinfarbstoffe

CHIMIA, 1966
O. Riester
doaj   +1 more source