Results 51 to 60 of about 97,919 (335)

Multilayer black phosphorus as broadband saturable absorber for pulsed lasers from 1 to 2.7 {\mu}m wavelength

, 2015
It attracts wide interest to seek universe saturable absorber covering wavelengths from near infrared to mid-infrared band. Multilayer black phosphorus, with variable direct bandgap (0.3-2 eV) depending on the layer number, becomes a good alternative as ...
Guo, Zhinan, Kong, Lingchen, Qian, Liejia, Qin, Zhipeng, Xie, Guoqiang, Yuan, Peng, Zhang, Han   +6 more
core   +1 more source

Keratin 19 as a prognostic marker and contributing factor of metastasis and chemoresistance in high‐grade serous ovarian cancer

Molecular Oncology, EarlyView.
Keratin 19 (KRT19) is overexpressed in high‐grade serous ovarian cancer with high levels of Kallikrein‐related peptidases (KLK) 4–7 and is associated with poor survival. In vivo analyses demonstrate that elevated KRT19 increases peritoneal tumour burden.
Sophia Bielesch, Isabel Vogel, Sina Nokodian, Johanna Moeller, Antonia Blechschmidt, Vicky Hecht, Vanessa Kuentzel, Katharina Thiedig, Melissa Schwab, Oliver Schilling, Holger Bronger, Marion Kiechle, Viktor Magdolen, Tobias Dreyer   +13 more
wiley   +1 more source

Finite-Time Analysis of Asynchronous Q-Learning Under Diminishing Step-Size From Control-Theoretic View

IEEE Access
Q-learning has long been one of the most popular reinforcement learning algorithms, and theoretical analysis of Q-learning has been an active research topic for decades.
Han-Dong Lim, Donghwan Lee
doaj   +1 more source

Robust (Q,S,R)-γ-Dissipative and H₂ Performances for Switched Systems with Mixed Time Delays

Mathematics, 2023
This paper investigates the switching on switching rule and sampling input to guarantee (Q,S,R)-γ-dissipative and H2 performances for switched systems with mixed time delays.
Ker-Wei Yu, Chang-Hua Lien, Hao-Chin Chang, Cheung-Chieh Ku, Sundarapandian Vaidyanathan, Cheng-Ruei Yu, Hung-Chih Li, Yi-You Hou   +7 more
doaj   +1 more source

Giant pulse lasing in three-level systems [PDF]

, 1999
We propose an alternative method to Q switching for generating giant pulses of laser light in three-level media. This mehod is based on the presence of an external coherent field driving one transition to allow the accumulation of a large population ...
American Physical Society, Corbalán, R., Mompart Penina, Jordi, Vilaseca, Ramon   +3 more
core   +2 more sources

Hippo pathway at the crossroads of stemness and therapeutic resistance in breast cancer

Molecular Oncology, EarlyView.
Dysregulation of the Hippo pathway drives nuclear accumulation of YAP/TAZ, activating stemness‐related transcriptional programs that sustain breast cancer stemness and fuel therapeutic resistance across subtypes, underscoring Hippo signaling as a targetable vulnerability. Figure created and edited with BioRender.com.
Giulia Schiavoni, Antonella Palmese, Stefano Scalera, Laura Cipriani, Davide Mascolo, Patrizia Vici, Teresa Arcuri, Lorena Filomeno, Eriseld Krasniqi, Giovanni Blandino, Giulia Bon, Marcello Maugeri‐Saccà   +11 more
wiley   +1 more source

Er:YAR Laser - Preparation of Hard Dental Tissues

Česká Stomatologie a Praktické Zubní Lékařství, 2007
Free-running and Q-switched infrared Er:YAG laser radiations, ultrasonic ball tip, and classical hand piece drilling machine were compared in the case of hard dental tissues preparation. For the radiation delivery, a special waveguide transfer system was
T. Dostálová, H. Jelínková, M. Němec, P. Koranda, M. Miyagi, K. Iwai, Y. Shi, Y. Matsuura   +7 more
doaj  

Scalable Hybrid Switching-Driven Software Defined Networking Issue: From the Perspective of Reinforcement Learning Standpoint

IEEE Access
The Software-Defined Networking technology promises to enhance network performance and cost reduction for service providers by providing scalability, flexibility, and programmability through the separation of the control plane from the data plane ...
Max Blose, Lateef Adesola Akinyemi, Stephen Ojo, Muhammad Faheem, Agbotiname Lucky Imoize, Arfat Ahmad Khan   +5 more
doaj   +1 more source

Self-Q-switched Cr:LiCAF laser

Journal of the Optical Society of America B, 2013
We report self-Q-switched operation of a Cr:LiCAF laser for the first time to our knowledge. Self-Q-switching (SQS) refers to the generation of a periodic train of Q-switched pulses from a laser cavity containing only the gain medium. Since SQS does not require any additional elements such as saturable absorbers or active modulators, it is far simpler ...
Beyatli, Ersen, Sennaroglu, Alphan, Demirbas, Umit   +2 more
openaire   +5 more sources

Mode-locked diode-pumped vanadate lasers operated with PbS quantum dots [PDF]

, 2018
The use of glasses doped with PbS nanocrystals as intracavity saturable absorbers for passive Q-switching and mode locking of c-cut Nd:Gd0.7Y0.3VO4, Nd:YVO4, and Nd:GdVO4 lasers is investigated. Q-switching yields pulses as short as 35 ns with an average
Di Labio, L., Feurer, T., Kutovoi, S., Lüthy, W., Onushchenko, A., Shcherbakov, I., Sirotkin, A., Vlasov, V., Zagumennyi, A., Zavartsev, Yu   +9 more
core