Article
Optics
Gui-Cang He, Kang-Wei Zhang, Li-Na Shi
Summary: This study investigates the fundamental correction effect of self-absorption (SA) on the measurement of element concentration in laser-induced plasmas (LIPs). Soil LIPs spectra are measured using a typical experimental setup, and the SA coefficient (SA lambda) of a spectral line is directly obtained through fitting the Voigt function. The results show that considering SA correction leads to element concentrations in soil that are closer to those obtained by chemical methods.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Ophthalmology
Xueting Cai, Yi Qin, Sixiu Liu, Zhewei Cheng, Fan Lu, Jia Qu, Ding Chen
Summary: Wearing a bandage contact lens can cause an increase in intraocular pressure (IOP), but the correction systems of Pentacam and Corvis ST can effectively correct this deviation.
JOURNAL OF OPHTHALMOLOGY
(2022)
Article
Energy & Fuels
Sonalben B. Prajapati, Alok Gautam, Shina Gautam
Summary: This study evaluated the synergistic effect of co-pyrolysis of printed circuit boards (PCB) and cotton stalk (CS) and determined its influence on the chemical composition and physical attributes of the produced char. The results showed that co-pyrolysis increased the surface area and pore diameter of the char, resulting in increased hydrophobicity and reduced bromine content in oil.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Physics, Multidisciplinary
Maxime A. Tremblay, Nicolas Delfosse, Michael E. Beverland
Summary: Quantum low density parity check (LDPC) codes offer a potential solution for building low-overhead fault-tolerant quantum computers. However, their general lack of geometric constraints can lead to complex layouts and performance degradation. To address this issue, we propose a 2D layout for quantum LDPC codes by decomposing their Tanner graphs into planar layers. Our findings demonstrate that, under certain conditions, we can achieve low circuit-noise threshold and reduce the number of required physical qubits.
PHYSICAL REVIEW LETTERS
(2022)
Article
Materials Science, Ceramics
G. B. Sukharina, A. M. Ermakova, R. O. Alekseev, G. Yu. Shakhgildyan, A. A. Veligzhanin, L. A. Avakyan, L. A. Bugaev, V. N. Sigaev
Summary: This study investigated the dependence of local atomic structure of lanthanum in borate glasses La2O3-Nb2O5-B2O3 on component composition by combining XANES, computer simulations, and multidimensional interpolation of spectra. The results showed that the La-O bond lengths and angles decreased in the glass compared to reference crystals. The ratio of intensities in experimental La L3-edge XANES was found to be a fingerprint of the number of nearest oxygen neighbors of lanthanum. Changes in the local structure of lanthanum under decreasing B2O3 fraction from 72.5% to 47.5% were determined.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Engineering, Environmental
Jinke Han, Xiaowei Liu, Meng Jiang, Zhaofeng Wang, Minghou Xu
Summary: By utilizing three fixed detectors, this study proposed a method to improve the accuracy of measuring PM mass concentration using laser angular scattering, based on the difference in particle size sensitivity. Correction of PMCS using the asymmetry factor significantly enhanced measurement precision.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Optics
Qing Yu, Chong Wang, Yali Zhang, Shengming Hu, Ting Liu, Fang Cheng, Yin Wang, Tianliang Lin, Lin Xi
Summary: In this paper, an error correction method for thickness measurement of transparent samples is proposed. By analyzing and simulating the error correction model, the requirement of measurement at different axial positions is achieved.
Article
Chemistry, Physical
Fani Pinakidou, Konstantinos Simeonidis, Eirini Myrovali, Maria Brzhezinskaya, Eleni C. Paloura, Makis Angelakeris, Maria Katsikini
Summary: This study reports on the oxidation degree and spatial distribution of iron oxide magnetic nanoparticles in the application of magnetic particle hyperthermia. The results show that the application of MPH can lead to aggregation and increased oxidation of the nanoparticles. The behavior of nanoparticles of different sizes varies under MPH, with the smallest particles showing the most pronounced aggregation.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Soil Science
Jirapat Tuntrachanida, Worachart Wisawapipat, Surachet Aramrak, Natthapol Chittamart, Wantana Klysubun, Penphitcha Amonpattaratkit, Olivier Duboc, Walter W. Wenzel
Summary: The speciation and solubility of solid-phase phosphorus in soil play a crucial role in determining the speciation and concentration of aqueous phosphorus. This study investigates the importance of solid-phase phosphorus species in phosphorus fluxes in diverse soil conditions rich in iron/aluminum/calcium compounds.
Article
Agricultural Engineering
Yuhan Huang, Mingquan Zhao, Hui Zhao, Tingwu Lei, Ju Tang, Wei Wang
Summary: The research aimed to develop correction equations to remove systematic measurement errors in the stirring-sampling method for measuring sediment concentrations. Two correction methods, step-wise correction and universal correction, were proposed based on the distribution of measurement errors. Step-wise correction showed higher accuracy but was limited to specific concentration ranges, while universal correction had lower accuracy but was more convenient for general use.
INTERNATIONAL JOURNAL OF AGRICULTURAL AND BIOLOGICAL ENGINEERING
(2022)
Article
Acoustics
Janez Rus, Christian U. Grosse
Summary: Local ultrasonic resonance spectroscopy (LURS) is a new approach for material inspection, allowing for the extraction of local material and geometrical properties based on the frequency spectrum of the mechanical response. Through experiments, it was demonstrated that LURS can accurately detect plate thickness, curvature, and internal delaminations with high precision.
Article
Chemistry, Multidisciplinary
Jian Wang, Jun Yang, Lihua Peng, Dawei Tang, Feng Gao, Rong Chen, Liping Zhou
Summary: In this paper, a method is proposed to correct the vibration-induced errors in back focal plane ellipsometry. It involves an initial calibration of the incident angle and the insertion of a calibrated Jones compensation matrix into the system model. Experimental results show that this method significantly improves measurement accuracy.
APPLIED SCIENCES-BASEL
(2023)
Article
Acoustics
Yanbo He, Jianyun Wang, Le Gu, Chuanwei Zhang, Haide Yu, Liqin Wang, Zhen Li, Yuze Mao
Summary: An improved ultrasonic reflection coefficient phase model is proposed for lubricant film thickness measurement with consideration to the influence of the solid layers. The model establishes the theoretical relation between the lubricant film thickness and the ultrasonic reflection coefficient phase, allowing for effective determination of the lubricant film thickness. The proposed model is verified through finite element analysis and experiments, demonstrating its capability to measure lubricant film thickness within the range of 2μm to 45μm.
Article
Geosciences, Multidisciplinary
Kamila Zavacka, Vilem Nedela, Martin Olbert, Eva Tihlarikova, L'ubica Vetrakova, Xin Yang, Dominik Heger
Summary: Using an environmental scanning electron microscope, the size of aerosol-sized salt particles formed during the sublimation of sea ice was quantified for the first time. The study found that temperature and concentration are important factors influencing the size distribution of salt particles. These findings are significant for understanding the production of polar atmospheric sea salt aerosols.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Optics
Bo Wang, Shujie Wang, Zhongmin Wang, Xiuwei Yang
Summary: The terahertz technique is particularly useful in identifying thin glue layers in multilayered materials due to its powerful penetration and greater spatial resolution. This study investigates two terahertz signal sparse deconvolution algorithms to accurately determine the times of echoes, as well as a method based on group velocity dispersion to reduce the impact of time-varying pulses. The presented algorithms have the potential to be used in real-time inspection with their quick speed and high confidence.
Article
Geosciences, Multidisciplinary
Alessandra C. Leri, Lawrence M. Mayer, Kathleen R. Thornton, Paul A. Northrup, Marisa R. Dunigan, Katherine J. Ness, Austin B. Gellis
Article
Biochemistry & Molecular Biology
Paul Northrup, Alessandra Leri, Ryan Tappero
PROTEIN AND PEPTIDE LETTERS
(2016)
Article
Biotechnology & Applied Microbiology
Mark J. Krzmarzick, Benjamin B. Crary, Jevon J. Harding, Oyenike O. Oyerinde, Alessandra C. Leri, Satish C. B. Myneni, Paige J. Novak
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2012)
Article
Environmental Sciences
Alessandra C. Leri, Laura N. Anthony
Article
Geochemistry & Geophysics
Alessandra C. Leri, Satish C. B. Myneni
GEOCHIMICA ET COSMOCHIMICA ACTA
(2012)
Article
Geochemistry & Geophysics
Alessandra C. Leri, Lawrence M. Mayer, Kathleen R. Thornton, Bruce Ravel
GEOCHIMICA ET COSMOCHIMICA ACTA
(2014)
Article
Environmental Sciences
Alessandra C. Leri, J. Alexandra Hakala, Matthew A. Marcus, Antonio Lanzirotti, Christopher M. Reddy, Satish C. B. Myneni
GLOBAL BIOGEOCHEMICAL CYCLES
(2010)
Article
Environmental Sciences
Alessandra C. Leri, Satish C. B. Myneni
GLOBAL BIOGEOCHEMICAL CYCLES
(2010)
Article
Multidisciplinary Sciences
Andrew Barber, Jay Brandes, Alessandra Leri, Karine Lalonde, Kathryn Balind, Sue Wirick, Jian Wang, Yves Gelinas
SCIENTIFIC REPORTS
(2017)
Article
Chemistry, Applied
Alessandra C. Leri, Marisa R. Dunigan, Rosie L. Wenrich, Bruce Ravel
Article
Biochemistry & Molecular Biology
Alessandra C. Leri
Summary: Undergraduates majoring in Biology and Biomedical Sciences at our small liberal arts college are required to participate in a seminar during their senior year, focusing on different topics in molecular biology and biochemistry. Amid the COVID-19 pandemic in March 2020, the seminar transitioned to an online Zoom platform with a revised focus on emerging research about the novel coronavirus, providing a seamless continuation and rich exploration of diverse topics in molecular biology and genetics.
BIOCHEMISTRY AND MOLECULAR BIOLOGY EDUCATION
(2021)
Article
Chemistry, Multidisciplinary
Alessandra C. Leri, Ashley P. Pavia
Summary: This experiment introduces undergraduate organic chemistry students to the analysis and interpretation of FTIR spectra by characterizing postconsumer plastics. Students learn to identify and differentiate recyclable polymer resins using FTIR spectra, and they also investigate a self-sourced plastic container to identify the resins in its various components. The experiment has practical implications for plastic resin sorting in recycling facilities.
JOURNAL OF CHEMICAL EDUCATION
(2022)
Article
Construction & Building Technology
Alessandra C. Leri, Marjan Khan
Summary: Despite the abundance of faecal pathogens in urban environments, the presence of faecal bacteria on city streets has not been quantified. The transfer of faecal pathogens between outdoor and indoor environments is also not well understood. This study found that faecal indicator bacteria were present on interior floor surfaces, shoe soles of building occupants, and exterior sidewalks in New York City. The findings suggest that there is ample opportunity for human exposure to faecal pathogens in the indoor environment.
INDOOR AND BUILT ENVIRONMENT
(2023)
Article
Oceanography
Rose Jones, Sarah Nicholas, Paul Northrup, Benjamin C. Bostick, Colleen Hoffman, Wen Hu, Phoebe J. Lam, Alessandra Leri, Brandy M. Toner, Benjamin S. Twining
Summary: Synchrotron instruments are valuable tools for marine studies, allowing nondestructive measurements of chemical composition and speciation on small sample volumes and at low concentrations. This article provides guidance for new users on accessing these instruments, designing appropriate experiments, and avoiding common pitfalls. Successful marine studies using synchrotron techniques are also presented.