Results 21 to 30 of about 461,051 (310)

Site-Specific N- and O-Glycosylation Analysis of Human Plasma Fibronectin

Frontiers in Chemistry, 2021
Human plasma fibronectin is an adhesive protein that plays a crucial role in wound healing. Many studies had indicated that glycans might mediate the expression and functions of fibronectin, yet a comprehensive understanding of its glycosylation is still
Ding Liu, Shuaishuai Wang, Junping Zhang, Weidong Xiao, Carol H. Miao, Barbara A. Konkle, Xiu-Feng Wan, Xiu-Feng Wan, Xiu-Feng Wan, Xiu-Feng Wan, Lei Li   +10 more
doaj   +1 more source

Concentration Estimation for Fuel Cells: Design of Experiments, Nonlinear Identification, and Observer Design With Experimental Validation

IEEE Access, 2023
Fuel cells (FCs) are promising eco-friendly power sources. Nevertheless, there are challenges to overcome if they are to be widely deployed in areas such as degradation avoidance and control, where the knowledge of the unavailable concentrations is ...
Zhang Peng Du, Christoph Steindl, Stefan Jakubek, Christoph Hametner   +3 more
doaj   +1 more source

Development of the portable mass spectrometer and its application in environmental monitoring [PDF]

E3S Web of Conferences, 2019
We reviewed the current key techniques of portable mass spectrometer and discussed its application in environmental monitoring. At present, mass spectrometer has two development directions.
Guo Cuilian, Cheng Yongqiang, Liu Maoke, Zhao Bin, Zhang Shuwei, Zhang Li   +5 more
doaj   +1 more source

Studies of Chamber Organic Aerosol using an Aerodyne High-Resolution Time-of-Flight Aerosol Mass Spectrometer [PDF]

, 2011
Secondary organic aerosol (SOA) contributes a substantial fraction to total ambient particulate mass. SOA is a complex mixture of different organic species formed via many gas- and particle-phase reaction pathways. The Aerodyne aerosol mass spectrometer (
Chhabra, Puneet Singh
core   +1 more source

Impact-Ionization Mass Spectrometry of Cosmic Dust [PDF]

, 2003
In situ characterization of cosmic dust grains typically involves impact-ionization time-of-flight mass spectrometry. Considering the performance and limitations of previous instruments, I designed and tested a novel, compact time-of-flight mass ...
Austin, Daniel Ephraim
core   +1 more source

Development and characterization of a high-performance single-particle aerosol mass spectrometer (HP-SPAMS) [PDF]

Atmospheric Measurement Techniques
This study describes a high-performance single-particle mass spectrometry (HP-SPAMS) design in detail. The comprehensive improvements in the injection system, optical sizing system, mass spectrometry, and data acquisition system have improved particle ...
X. Du, X. Du, Q. Xie, Q. Xie, Q. Huang, Q. Huang, X. Li, X. Li, J. Yang, Z. Hou, J. Wang, X. Li, X. Li, Z. Zhou, Z. Zhou, Z. Huang, Z. Huang, W. Gao, W. Gao, L. Li, L. Li   +20 more
doaj   +1 more source

A Study of a Miniature TDLAS System Onboard Two Unmanned Aircraft to Independently Quantify Methane Emissions from Oil and Gas Production Assets and Other Industrial Emitters

Atmosphere, 2022
In recent years, industries such as oil and gas production, waste management, and renewable natural gas/biogas have made a concerted effort to limit and offset anthropogenic sources of methane emissions.
Abigail Corbett, Brendan Smith
doaj   +1 more source

Development, Validation, and Comparison of Two Mass Spectrometry Methods (LC-MS/HRMS and LC-MS/MS) for the Quantification of Rituximab in Human Plasma

Molecules, 2021
Rituximab is a chimeric immunoglobulin G1-kappa (IgG1κ) antibody targeting the CD20 antigen on B-lymphocytes. Its applications are various, such as for the treatment of chronic lymphoid leukemia or non-Hodgkin’s lymphoma in oncology, and it can also be ...
Aurélien Millet, Nihel Khoudour, Dorothée Lebert, Christelle Machon, Benjamin Terrier, Benoit Blanchet, Jérôme Guitton   +6 more
doaj   +1 more source

Ultra-fast searching assists in evaluating sub-ppm mass accuracy enhancement in U-HPLC/Orbitrap MS data [PDF]

, 2010
A strategy, detailed methodology description and software are given with which the mass accuracy of U-HPLC-Orbitrap data (resolving power 50,000 FWHM) can be enhanced by an order of magnitude to sub-ppm levels.
J. Efraim Oosterink, Mol, J.G.J., Ruiz-Arcama, A., Ruud J. B. Peters, Arjen Lommen, Oosterink, J.E., Gerssen, A., Harrie J. Kools, Lommen, A., Ainhoa Ruiz-Aracama, Arjen Gerssen, Peters, R.J.B., Kools, H.J., Hans G. J. Mol   +13 more
core   +1 more source

Identification of Flavonoids from Marrubium and Ballota Species (Lamiaceae) and Determination of Chemotaxonomic Markers Using High Performance Liquid Chromatography Mass Spectrometer [PDF]

Journal of Sciences, Islamic Republic of Iran, 2021
Marrubium and Ballota are known to be important medicinal plants belonging to the Lamiaceae family. Their aerial parts have been widely used in traditional medicine.
Mahin Hashemi, Navaz Kharazian
doaj   +1 more source