Results 41 to 50 of about 120,634 (290)

Direct effects of ocean alkalinity enhancement in the Baltic Sea–results from in-silico experiments

Frontiers in Climate
To achieve carbon neutrality, ocean alkalinity enhancement (OAE) is currently being researched as a marine option for carbon dioxide removal (CDR). The approach of releasing calcite near the sediments and using the effect of enhanced mineral solubility ...
Anna-Adriana Anschütz, Jannine M. Lencina-Avila, Gregor Rehder, Bronwyn Cahill, Thomas Neumann, Hagen Radtke   +5 more
doaj   +1 more source

Optimization measurement of hydrogen gas concentration by using high accuracy TDLAS [PDF]

EPJ Web of Conferences
Trace gas measurement is crucial for maintaining safety, quality control, and environmental protection across various industries. Tunable diode laser absorption spectroscopy (TDLAS) is frequently used for trace gas analysis due to its superior ...
Xiafukaiti Alifu, Lagrosas Nofel, Ogita Masakazu, Oi Nobuhiko, Ichikawa Yuji, Sugimoto Sachiyo, Asahi Ippei, Yamaguchi Shigeru, Shiina Tatsuo   +8 more
doaj   +1 more source

Mid-infrared supercontinuum-based upconversion detection for trace gas sensing

Optics Express, 2019
Recent advancements of mid-infrared (MIR) supercontinuum light sources have opened up new possibilities in laser-based trace gas sensing. While the supercontinuum sources inherently support wide spectral coverage, the detection of broadband absorption signals with high speed and low cost is traditionally limited by the MIR detector arrays. In this work,
Khalil Eslami Jahromi, Qing Pan, Lasse Høgstedt, Søren M. M. Friis, Amir Khodabakhsh, Peter Morten Moselund, Frans J. M. Harren   +6 more
openaire   +4 more sources

Investigation of the Frequency Shift of a SAD Circuit Loop and the Internal Micro-Cantilever in a Gas Sensor

Sensors, 2010
Micro-cantilever sensors for mass detection using resonance frequency have attracted considerable attention over the last decade in the field of gas sensing.
Zheng You, Jiahao Zhao, Peng Li, Shijie Yu, Liu Guan   +4 more
doaj   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Likelihood informed dimension reduction for inverse problems in remote sensing of atmospheric constituent profiles

, 2018
We use likelihood informed dimension reduction (LIS) (T. Cui et al. 2014) for inverting vertical profile information of atmospheric methane from ground based Fourier transform infrared (FTIR) measurements at Sodankyl\"a, Northern Finland.
A Karion, A Solonen, A Spantini, BD Ripley, CD Rodgers, DR Feldman, H Haario, H Haario, R Kivi, S Tukiainen   +9 more
core   +1 more source

Compact hollow waveguide mid-infrared gas sensor for simultaneous measurements of ambient CO2 and water vapor [PDF]

, 2020
A compact, sensitive and stable hollow waveguide (HWG) mid-infrared gas sensor, based on gas absorption lines using wavelength modulation spectroscopy with a second harmonic (WMS-2f) detection scheme, was developed for simultaneous measurements of ...
Chen, Weidong, He, Xing Dao, Hu, Rongjing, Kong, Weiping, Wang, Mengyu, Wu, Qiang, Wu, Tao, Ye, Chenwen   +7 more
core   +3 more sources

Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity

Molecular Oncology, EarlyView.
Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung, David Bickel, Lena C. M. Krause, Daria Ezeriņa, Christian Ickes, Julian Wojtachnia, Christine S. Gibhardt, Magdalena Shumanska, Khadija Wahni, Andrea Paluschkiwitz, Julia Malo Pueyo, Ekaterina Baranova, Wim Vranken, Hedwig Stanisz, Ioana Stejerean‐Todoran, Michael P. Schön, Joris Messens, Ivan Bogeski   +17 more
wiley   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Single‐molecule DNA flow‐stretch assays for high‐throughput DNA–protein interaction studies

FEBS Open Bio, EarlyView.
We describe an optimised single‐molecule DNA flow‐stretch assay that visualises DNA–protein interactions in real time. Linear DNA fragments are tethered to a surface and stretched by buffer flow for fluorescence imaging. Using λ and φX174 DNA, this protocol enhances reproducibility and accessibility, providing a versatile approach for studying diverse ...
Ayush Kumar Ganguli, Mohammad Nour Alsamsam, Ugnė Bagdonaitė, Van Truc Vu, Chun‐Jen Huang, Polina Kuzhir, Mindaugas Zaremba, Aurimas Kopūstas, Marijonas Tutkus   +8 more
wiley   +1 more source