Results 11 to 20 of about 828,126 (263)

Polarization-Maintaining Single-Frequency Fiber Laser With Quadruple Wavelengths at the C-Band

IEEE Photonics Journal, 2018
In this paper, a polarization-maintaining quad-wavelength (QW) single-frequency fiber laser (SFFL) at the C-band with the novel and compact structure is demonstrated. Applying the rate equations and multiple coupled nonlinear Schrödinger equations,
Kunyi Li, Huaqiu Deng, Pengfei Ma, Wei Lin, Huihui Cheng, Xianchao Guan, Changsheng Yang, Qilai Zhao, Yuning Zhang, Zhongmin Yang, Shanhui Xu   +10 more
doaj   +1 more source

Photophysical Behavior and Sensing Response of Chalcone Containing Pyrene moiety [PDF]

Delta Journal of Science, 2021
D–π–A dye composed of pyrene and thiophene units was synthesized and characterized using elemental, FT-IR, and mass analyses. The solvatochromic response was investigated in different solvents of various polarities.
Fathy Hassan, Doaa F. Draz, Saleh Abd Elazim, Tarek A. Fayed, Marwa N. El-Nahass   +4 more
doaj   +1 more source

Metamaterial emitter for thermophotovoltaics stable up to 1400 °C

Scientific Reports, 2019
High temperature stable selective emitters can significantly increase efficiency and radiative power in thermophotovoltaic (TPV) systems. However, optical properties of structured emitters reported so far degrade at temperatures approaching 1200 °C due ...
Manohar Chirumamilla, Gnanavel Vaidhyanathan Krishnamurthy, Katrin Knopp, Tobias Krekeler, Matthias Graf, Dirk Jalas, Martin Ritter, Michael Störmer, Alexander Yu Petrov, Manfred Eich   +9 more
doaj   +1 more source

Divalent europium-doped near-infrared-emitting phosphor for light-emitting diodes

Nature Communications, 2019
Here the authors report a near-infrared K3LuSi2O7:Eu2+ phosphor for non-visible light source application. The selective site occupation of Eu2+ in LuO6 and K2O6 polyhedrons is found to be responsible for the light emission and these insights could serve ...
Jianwei Qiao, Guojun Zhou, Yayun Zhou, Qinyuan Zhang, Zhiguo Xia   +4 more
doaj   +1 more source

Spectroscopic investigation of the photochemical transformations of metoclopramide hydrochloride in the presence of alkaline and oxidative conditions

Scientific Reports
This study investigates the photodegradation of metoclopramide hydrochloride (MET) in alkaline conditions and in the presence of oxidative agents such as hydrogen peroxide (H2O2).
Radu Cercel, Andreea Androne, Cristina Bartha, Catalin Negrila, Mihaela Baibarac, Stefano Bellucci   +5 more
doaj   +1 more source

Comparative Evaluation of Hemodiafiltration, Hemoperfusion, and Standard Hemodialysis on Efficacy, Inflammatory Control, Dialysis Adequacy, and Safety in End‐Stage Renal Disease: A Prospective Observational Study

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic micro‐inflammation in patients with end‐stage renal disease (ESRD) is a significant driver of cardiovascular complications and diminished quality of life. While standard hemodialysis (SHD) effectively manages small‐molecule clearance, its ability to remove medium‐to‐large uremic toxins—the primary catalysts of systemic ...
Hongwei Zuo, Weisi Dai, Jie Mao, Mei Ye, Xingshan Lu, Xiaocui Zhang   +5 more
wiley   +1 more source

Electrical actuation of single-crystal diamond MEMS resonators at high temperatures

Functional Diamond
Achieving efficient low-voltage actuation of microelectromechanical system (MEMS) resonators in high-temperature environments poses a difficult topic due to the thermal interference and the risk of high-temperature failure.
Zilong Zhang, Keyun Gu, Guo Chen, Masataka Imura, Meiyong Liao   +4 more
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Optical materials characterization

, 1974
Abstract : The refractive index of a sample of hot-forged CaF2 was measured from 0.25 micrometers to 8.0 micrometers by means of the minimum-deviation method on a precision spectrometer. Data were obtained near 20 C and 34 C. Each data set was fitted to a three-term Sellmeier-type dispersion equation, which permits interpolation of refractive index as ...
Albert Feldman, Deane Horowitz, Roy M Waxler, Irving H Malitson, Marilyn J Dodge   +4 more
openaire   +1 more source

The planar cell polarity protein Vangl2 interacts with the PDZ‐domains of Scribble but not with a unique PDZ‐like domain in Inturned

FEBS Letters, EarlyView.
Structural and biochemical characterisations show that the planar cell polarity (PCP) protein Inturned harbours a unique PDZ‐like domain that does not bind canonical PDZ‐binding motifs (PBMs) like that of another PCP protein Vangl2. In contrast, the apical‐basal polarity protein Scribble contains four PDZ domains that bind Vangl2, but one PDZ domain ...
Stephan Wilmes, Jan Brysch, Carmen Gelze, Lilli Meier, Daniel Kümmel   +4 more
wiley   +1 more source