Results 121 to 130 of about 125,078 (291)

Development of an Indirect Photoacoustic Sensor Concept for Highly Accurate Low-ppm Gas Detection

Proceedings
Indirect photoacoustic sensing (PAS) offers accurate low-ppm gas measurements, with an inverse relation of the obtained signal to the measured gas concentration. The gas is sealed in transistor outline (TO) housing using a new method.
Ananya Srivastava, Achim Bittner, Alfons Dehé   +2 more
doaj   +1 more source

Synthesizing polyethersulphone membranes with hybrid iron/nickel nanoparticles for dyes removal: An efficient biogenesis approach

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Industrial wastewater contamination by azo dyes poses a significant environmental challenge. This study reports the green synthesis of bimetallic iron/nickel (Fe/Ni) nanoparticles using moringa leaf extract, which acted as both a reducing and capping agent, and their incorporation into polyethersulphone (PES) membranes to produce eco‐friendly ...
Qusay A. Almajras, Ahmed K. Hassan, Dahiru Lawal, Mohammed Awad, Raed A. Al‐Juboori, Muhammad Irfan, Muhammad Rafiq, Qusay F. Alsalhy   +7 more
wiley   +1 more source

Charge State Influence on Stability and Isomerism in Dehydrogenated PAHs: Insights from Anthracene, Acridine, and Phenazine

ChemPhysChem, Volume 26, Issue 6, March 15, 2025.
The ionization of anthracene, acridine, and phenazine has been explored, along with the removal of one and two hydrogen atoms, to provide valuable information for astrochemists and to understand the behavior of the resulting structures and their electronic reorganization. Abstract In this study, we systematically explored the stability and isomerism of
Khaldia Zghida, Farouk Hamza Reguig, Manuel Alcamí, Al Mokhtar Lamsabhi   +3 more
wiley   +1 more source

Stability and noise spectra of relative Loran-C frequency comparisons [PDF]

Relative comparisons of Loran-C frequency transmissions between the master station of Catanzaro (Simeri Crichi) and the X, Z slave stations of Estartit (Spain) and Lampedusa (Italy) are carrying out by the GG LORSTA monitor station of the Mediterranean ...
Proverbio, E., Quesada, V., Simoncini, A.   +2 more
core   +1 more source

Energy Landscapes in Chemical Reactions and Transport

ChemPhysChem, Volume 26, Issue 6, March 15, 2025.
Kinetics/dynamics of chemical reactivity and transport of chemical species in a solid are both determined by the energy landscape in which they take place. Discussing common grounds but also distinct differences may help in advancing the understanding in both fields.
Karl‐Michael Weitzel
wiley   +1 more source

Temperature-dependent mechanical losses of Eu3+:Y2SiO5 for spectral hole burning laser stabilization

APL Materials
We investigate the mechanical loss characteristics of Eu3+:Y2SiO5—a promising candidate for ultra-low-noise frequency stabilization through the spectral hole burning technique.
Nico Wagner, Michael T. Hartman, Bess Fang, Johannes Dickmann, Stefanie Kroker   +4 more
doaj   +1 more source

Board Governance as a Strategic Mechanism: Carbon Risk and Firm Performance

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Carbon emissions are a major contributor to global warming and pose significant threats to the environment. In response to the urgency of climate change, firms are under increasing pressure to adopt policies that enhance environmental performance while reducing carbon risk.
Sarmad Ali, Muhammad Farooq, Qadri Al‐Jabri, Hassan Mujtaba Nawaz Saleem   +3 more
wiley   +1 more source

Carbon monoxide impurities in hydrogen detected with resonant photoacoustic cell using a mid-IR laser source

Photoacoustics
We report on a photoacoustic sensor system based on a differential photoacoustic cell to detect the concentration of CO impurities in hydrogen. A DFB-QCL laser with a central wavelength of 4.61 µm was employed as an exciting source with an optical power ...
Chaofan Feng, Xiaowen Shen, Biao Li, Xiaoli Liu, Yujing Jing, Qi Huang, Pietro Patimisco, Vincenzo Spagnolo, Lei Dong, Hongpeng Wu   +9 more
doaj   +1 more source

A Social Entrepreneurship Perspective of De‐Carbonising the Footprint through Recycling Compensation: A Case Study of the NGO Madre Coraje

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT This research analyses the carbon footprint of the NGO Madre Coraje, using an integrated methodology that combines the calculator provided by REAS (Red de Economía Alternativa y Solidaria) Navarra and the Life Cycle Assessment (LCA). It quantifies emissions across the three scopes of the Greenhouse Gas Protocol, evaluating both direct and ...
José Fernandez‐Serrano, Juan A. Hueso, Orlando Vega‐Galeano   +2 more
wiley   +1 more source

COMIP‐001: A clinical 13‐antibody, 12‐color flow cytometry panel for optimized immunophenotyping of T/NK cells in human leukemia and lymphoma diagnostics

Cytometry Part B: Clinical Cytometry, EarlyView.
Abstract The objective of this 12‐color/13‐antibody single‐tube panel is to assist in the diagnosis of T/NK‐cell leukemias and lymphomas. In the clinical setting, the absence of a standardized T/NK‐cell panel limits inter‐laboratory data comparability, contributes to diagnostic variability, and results in redundant efforts across laboratories to design
Nicole So, Sara Monaghan, Katelynn Davis, Grant Bullock, Wendy Shallenberger, Ahmad Al‐Attar   +5 more
wiley   +1 more source