Results 21 to 30 of about 2,155,894 (257)

Comparison of an InSb Detector and Upconversion Detector for Infrared Polarization Spectroscopy

, 2017
This paper compares the signal-to-noise ratio obtained using an InSb photodiode for infrared (IR) polarization spectroscopy to that obtained using an upconversion detector, and shows a factor 64 improvement by the change.
Zongshan Li, Hot, Dina, Pedersen, Rasmus L., Li, Zongshan, Dina Hot, Rasmus L. Pedersen, Pedersen, Rasmus L.,, Hot, Dina,, Li, Zongshan,, Lund University.   +9 more
core   +1 more source

Time-resolved photoelectron spectroscopy of organic molecules in aqueous solutions [PDF]

EPJ Web of Conferences, 2019
We use time-resolved photoelectron spectroscopy with wavelength-selected XUV femtosecond pulses to study photoinduced dynamics of organic molecules in solutions at millimolar concentrations.
Hummert Johan, Reitsma Geert, Mayer Nicola, Ikonnikov Evgenii, Eckstein Martin, Kornilov Oleg   +5 more
doaj   +1 more source

Remote imaging laser-induced breakdown spectroscopy and laser-induced fluorescence spectroscopy using nanosecond pulses from a mobile lidar system

, 2006
A mobile lidar system was used in remote imaging laser-induced breakdown spectroscopy (LIBS) and laser-induced fluorescence (LIF) experiments. Also, computer-controlled remote ablation of a chosen area was demonstrated, relevant to cleaning of cultural ...
Grönlund, Rasmus, Svanberg, Sune, Lundqvist, Mats, Svanberg, Sune,, Grönlund, Rasmus,, Lund University.   +5 more
core   +1 more source

Mapping the electrostatic potential of the nucleosome acidic patch [PDF]

, 2021
The nucleosome surface contains an area with negative electrostatic potential known as the acidic patch, which functions as a binding platform for various proteins to regulate chromatin biology.
Zhang, Heyi, Schellevis, Raymond, Horn, Velten, van Ingen, Hugo, Eerland, Jelmer, NMR Spectroscopy, Sub NMR Spectroscopy   +6 more
core  

Unified picture of vibrational relaxation of OH stretch at the air/water interface

Nature Communications
The elucidation of the energy dissipation process is crucial for understanding various phenomena occurring in nature. Yet, the vibrational relaxation and its timescale at the water interface, where the hydrogen-bonding network is truncated, are not well ...
Woongmo Sung, Ken-ichi Inoue, Satoshi Nihonyanagi, Tahei Tahara   +3 more
doaj   +1 more source

Mid-infrared single-pixel imaging at the single-photon level

Nature Communications, 2023
The authors present an implementation of mid-infrared single-photon computational imaging with a single-element silicon detector. In addition to unique features of single-pixel simplicity and room-temperature operation, the infrared imager offers a ...
Yinqi Wang, Kun Huang, Jianan Fang, Ming Yan, E Wu, Heping Zeng   +5 more
doaj   +1 more source

Effect of DFPP on Ferroptosis in Peripheral Blood CD14+ Monocytes of Hyperlipidemic Patients Involving the ACSL4/LPCAT3/ALOX5 Pathway

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Hyperlipidemia is a major risk factor for atherosclerotic cardiovascular disease (ASCVD). Although statins are the cornerstone of lipid‐lowering therapy, their use may be limited in some patients by adverse effects. This study evaluated the possible impact of non‐drug treatment using double‐filtration plasmapheresis (DFPP) on CD14+
Yun Cheng, Lan Li, Qingmei Yang, Meipeng Wu   +3 more
wiley   +1 more source

New approach to generalized two-dimensional correlation spectroscopy. 1: Combination of principal component analysis and two-dimensional correlation spectroscopy

, 2014
The direct combination of chemometrics and two-dimensional (2D) correlation spectroscopy is considered. The use of a reconstructed data matrix based on the significant scores and loading vectors obtained from the principal component analysis (PCA) of raw
Shin, HS, Bin Kim, S, Jung, YM, Shin, Hyeon Suk, Noda, I   +4 more
core   +1 more source

Measurement of the parameters of non-stationary gas flows by diode laser absorption spectroscopy in case of high temperature and high pressure

EPJ Web of Conferences, 2017
Experimental version of diode laser absorption spectrometer (DLAS) for contactless measurements of temperature and water vapor concentration in supersonic gas flows is developed. The spectrometer can be used for the measurements of temperature up to 2500
Bolshov M.A., Liger V.V., Kuritsyn Yu.A., Mironenko V.R., Ponurovskii Ya.Ya., Kolesnikov O.M.   +5 more
doaj   +1 more source

Biophysical approaches for studying viral entry

FEBS Letters, EarlyView.
Viruses infect all living organisms and have been responsible for major epidemics and pandemics. Their ongoing evolutionary battle with host defenses creates a constant need for improved tools to study viral behavior. Advancing methods to probe viral attachment, fusion, and genome release deepen our understanding of how infections begin and support the
Inbar Yosibash, Raya Sorkin
wiley   +1 more source