jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: Alessandro Campari | Antonio Alvaro | Federico Ustolin | Nicola Paltrinieri
Source:  (article, 2023-01-01)
Field: Materials Science — Metals and Alloys

Calculation of the Damage Factor for the Hydrogen-Enhanced Fatigue in the RBI Framework Hydrogen has been largely indicated as a promising long-term solution for energy transport and storage, thanks to its near-zero environmental impact at the end-use site.On the other side, it can permeate and embrittle most metallic materials, thus resulting in sudden component failures in the hydrogen industry.Maintenance activities have a prominent role in accident prevention.The risk-based inspection (RBI) approach aims at prioritizing the inspection of high-risk components to minimize the overall risk of the plant.Nevertheless, RBI has never been adopted for equipment operating in a hydrogen environment.The determination of the risk is based on the damage factor, a parameter accounting for the material degradation likely to occur.Hydrogen-induced damages are mostly neglected or generalized by the existing RBI standards.This study proposes a methodology to determine the damage factor for hydrogen-enhanced fatigue crack growth, normally caused by pressure fluctuations in pipeline systems.The environmental severity is based on the operating conditions, while the material's susceptibility depends on its microstructure, chemical composition, and presence of welds.The working conditions are considered through the frequency and the stress ratio.This methodology could allow the application of the RBI methodology for hydrogenrelated equipment.Hence, it will facilitate risk-informed managerial decisions, thus stimulating an increasingly widespread rollout of hydrogen as a clean and safe energy carrier. Hydrogen ; Reliability engineering ; Environmental science ; Hydrogen fuel ; Risk analysis (engineering) ; Risk assessment ; Computer science ; Pipeline (software) ; Durability ; Materials science ; Forensic engineering ; Process engineering ; Nuclear engineering ; Engineering ; Business ; Composite material ; Chemistry Hydrogen embrittlement and corrosion behaviors in metals ; Fatigue and fracture mechanics ; Risk and Safety Analysis
Authors: Sergey Igorevich Ekba | Anastasia A. Borovkova | Dmitry Nikolenko | Danila Alexandrovich Koblyuk
Source: E3S Web of Conferences (article, 2023-01-01)
Field: Materials Science — Materials Chemistry

A systematic approach to technical inspection of construction projects This study presents a methodical approach to the procedure of inspection of the technical condition of non-residential public buildings, including architectural monuments. The work considers the peculiarities of the inspection at each stage - the analysis of the initial data, preparation for and preliminary (visual) inspection of the object with the drawing up of the inspection program, conducting a detailed (instrumental) inspection, processing the results and preparing a technical conclusion. As methods of research were used - the method of observation and comparison of actual, design and regulatory parameters, the method of measurement of actual values, methods of nondestructive testing, described used means of measurement and control. Performed visual inspection, analysis of the structural system of the building, photography, drawings of the object. On the basis of the results of visual and instrumental inspection defects and damages typical for the finishing stage were identified. A list and map of defects have been developed. The presented methodological approach can be used at the object-analogues, including architectural monuments and objects of cultural heritage. The causes of defects and damages have been identified, and recommendations for their elimination have been given. Visual inspection ; Damages ; Object (grammar) ; Computer science ; Cultural heritage ; Construction engineering ; Photography ; Technical drawing ; Engineering drawing ; Engineering ; Artificial intelligence ; Visual arts Structural mechanics and materials ; 3D Surveying and Cultural Heritage
Authors: Tobias Schraink | Lili M. Blumenberg | Grant Hussey | Sabrina George | Brecca Miller | Nithu Mathew | Tania J González-Robles | Vladislav O. Sviderskiy | Thales Papagiannakopoulos | Richard Possemato | David Fenyö | Kelly V. Ruggles
Source: Molecular & Cellular Proteomics (article, 2023-06-30)
Field: Chemistry — Spectroscopy

PhosphoDisco: A Toolkit for Co-regulated Phosphorylation Module Discovery in Phosphoproteomic Data Kinases are key players in cancer-relevant pathways and are the targets of many successful precision cancer therapies. Phosphoproteomics is a powerful approach to study kinase activity and has been used increasingly for the characterization of tumor samples leading to the identification of novel chemotherapeutic targets and biomarkers. Finding co-regulated phosphorylation sites which represent potential kinase-substrate sets or members of the same signaling pathway allows us to harness these data to identify clinically relevant and targetable alterations in signaling cascades. Unfortunately, studies have found that databases of co-regulated phosphorylation sites are only experimentally supported in a small number of substrate sets. To address the inherent challenge of defining co-regulated phosphorylation modules relevant to a given dataset, we developed PhosphoDisco, a toolkit for determining co-regulated phosphorylation modules. We applied this approach to tandem mass spectrometry based phosphoproteomic data for breast and non-small cell lung cancer and identified canonical as well as putative new phosphorylation site modules. Our analysis identified several interesting modules in each cohort. Among these was a new cell cycle checkpoint module enriched in basal breast cancer samples and a module of PRKC isozymes putatively co-regulated by CDK12 in lung cancer. We demonstrate that modules defined by PhosphoDisco can be used to further personalized cancer treatment strategies by establishing active signaling pathways in a given patient tumor or set of tumors, and in providing new ways to classify tumors based on signaling activity. Kinase ; Cancer ; Scopus ; Molecular biology ; Medicine ; Chemistry ; Biology ; MEDLINE ; Internal medicine ; Biochemistry Advanced Proteomics Techniques and Applications ; Bioinformatics and Genomic Networks ; Cancer Genomics and Diagnostics
Authors: Yasutomo Otake | Hiroshi Murase
Source: Energies (article, 2023-11-01)
Field: Materials Science — Materials Chemistry

Improving the Estimation of Partial Discharge Direction Using a Four-Terminal Surface Current Sensor To improve the insulation diagnosis of a medium-voltage (MV) switchgear, we have developed a four-terminal surface current sensor and a method to estimate the direction of partial discharge occurrence. In this method, the accuracy of the direction estimation is improved by referring only to the direct wave, and the error due to noise can be suppressed by calculating the outputs of the four terminals. The experimental results demonstrate that the detection characteristics of the sensor concur well with the theoretical characteristics derived from the detection principle. Additionally, we conducted an experiment using the developed sensor and the new method to detect the surface current generated due to partial discharge occurring in a rectangular enclosure. The results demonstrate that the occurrence direction could be estimated even for a rectangular enclosure. Furthermore, the propagation attenuation of the surface current at the corners of the enclosure was large, exhibiting an attenuation 0.25 times for the worst case. Finally, it was confirmed that noise removal using a wavelet transform could reduce the direction estimation error of the discharge occurrence by approximately half. Partial discharge ; Switchgear ; Enclosure ; Acoustics ; Attenuation ; Current (fluid) ; Current sensor ; Voltage ; Terminal (telecommunication) ; Noise (video) ; Materials science ; Computer science ; Electrical engineering ; Engineering ; Optics ; Physics ; Telecommunications ; Artificial intelligence High voltage insulation and dielectric phenomena ; Electrical Fault Detection and Protection ; Non-Destructive Testing Techniques
Authors: David Bouyssié | Pınar Altıner | Salvador Capella-Gutiérrez | José M. Fernández | Yanick Hagemeijer | Péter Horvatovich | Martin Hubálek | Fredrik Levander | Pierluigi Mauri | Magnus Palmblad | Wolfgang Raffelsberger | Laura Rodríguez‐Navas | Dario Di Silvestre | Balázs Kunkli | Julian Uszkoreit | Yves Vandenbrouck | Juan Antonio Vizcaíno | Dirk Winkelhardt | Veit Schwämmle
Source: Journal of Proteome Research (article, 2023-12-01)
Field: Chemistry — Spectroscopy

WOMBAT-P: Benchmarking Label-Free Proteomics Data Analysis Workflows The inherent diversity of approaches in proteomics research has led to a wide range of software solutions for data analysis. These software solutions encompass multiple tools, each employing different algorithms for various tasks such as peptide-spectrum matching, protein inference, quantification, statistical analysis, and visualization. To enable an unbiased comparison of commonly used bottom-up label-free proteomics workflows, we introduce WOMBAT-P, a versatile platform designed for automated benchmarking and comparison. WOMBAT-P simplifies the processing of public data by utilizing the sample and data relationship format for proteomics (SDRF-Proteomics) as input. This feature streamlines the analysis of annotated local or public ProteomeXchange data sets, promoting efficient comparisons among diverse outputs. Through an evaluation using experimental ground truth data and a realistic biological data set, we uncover significant disparities and a limited overlap in the quantified proteins. WOMBAT-P not only enables rapid execution and seamless comparison of workflows but also provides valuable insights into the capabilities of different software solutions. These benchmarking metrics are a valuable resource for researchers in selecting the most suitable workflow for their specific data sets. The modular architecture of WOMBAT-P promotes extensibility and customization. The software is available at https://github.com/wombat-p/WOMBAT-Pipelines. Computer science ; Benchmarking ; Workflow ; Software ; Pipeline (software) ; Data mining ; Shotgun proteomics ; Proteomics ; Database ; Biology Advanced Proteomics Techniques and Applications ; Mass Spectrometry Techniques and Applications ; Metabolomics and Mass Spectrometry Studies
Authors: Frederik Lermyte | Tanja Habeck | Kyle A. Brown | Benjamin J. Des Soye | Carter Lantz | Mowei Zhou | Novera Alam | Md Amin Hossain | Wonhyeuk Jung | James E. Keener | Michael Volný | Jesse Wilson | Yujia Ying | Jeffrey N. Agar | Paul O. Danis | Ying Ge | Neil L. Kelleher | Huilin Li | Joseph A. Loo | Michael T. Marty | Ljiljana Paša‐Tolić | Wendy Sandoval
Source: Research Square (preprint, 2023-08-23)
Field: Chemistry — Spectroscopy

Top-down mass spectrometry of native proteoforms and their complexes: A community study The combination of native electrospray ionisation with top-down fragmentation in mass spectrometry allows simultaneous determination of the stoichiometry of noncovalent complexes and identification of their component proteoforms and co-factors. While this approach is powerful, both native mass spectrometry and top-down mass spectrometry are not yet well standardised, and only a limited number of laboratories regularly carry out this type of research. To address this challenge, the Consortium for Top-Down Proteomics (CTDP) initiated a study to develop and test protocols for native mass spectrometry combined with top-down fragmentation of proteins and protein complexes across eleven instruments in nine laboratories. The outcomes are summarised in this report to provide robust benchmarks and a valuable entry point for the scientific community. Mass spectrometry ; Chemistry ; Chromatography Mass Spectrometry Techniques and Applications ; Advanced Proteomics Techniques and Applications ; Metabolomics and Mass Spectrometry Studies
Authors: Long Chen | Lvsheng Cui | Tong Ben | Libing Jing
Source: CES Transactions on Electrical Machines and Systems (article, 2023-07-12)
Field: Materials Science — Electronic, Optical and Magnetic Materials

An Improved Preisach Distribution Function Identification Method Considering the Reversible Magnetization This paper presents an identification method of the scalar Preisach model to consider the effect of reversible magnetization in the process of distribution function identification. By reconsidering the identification process by stripping the influence of reversible components from the measurement data, the Preisach distribution function is identified by the pure irreversible components. In this way, the simulation accuracy of both limiting hysteresis loops and the inner internal symmetrical small hysteresis loop is ensured. Furthermore, through a discrete Preisach plane with a hybrid discretization method, the irreversible magnetic flux density components are computed more efficiently through the improved Preisach model. Finally, the proposed method results are compared with the traditional method and the traditional method considering reversible magnetization and validated by the laboratory test for the B30P105 electrical steel by Epstein frame. Preisach model of hysteresis ; Magnetization ; Hysteresis ; Magnetic hysteresis ; Discretization ; Scalar (mathematics) ; Magnetic flux ; Control theory (sociology) ; Physics ; Condensed matter physics ; Materials science ; Mathematics ; Computer science ; Mathematical analysis ; Magnetic field ; Geometry Magnetic Properties and Applications ; Microstructure and Mechanical Properties of Steels ; Electric Motor Design and Analysis
Authors: Tomohiro Kawashima | Taisuke Hirukawa | Kanta Yoshikawa | Yoshinobu Murakami | Naohiro Hozumi
Source: Electrical Engineering in Japan (article, 2023-02-08)
Field: Materials Science — Materials Chemistry

Fundamental study for assessment of surface resistivity based on waveform characteristics of partial discharge Abstract The partial discharge (PD) waveform reflects the evolution process of electron avalanche in the discharge space. The authors expect to estimate the condition of the discharge space based on the PD waveform characteristics. The semi‐conductive sheet was attached to the insulator to simulate the decrease in surface resistance due to deterioration. With the reduction of the surface resistivity, the shoulder appeared on the rising part of the PD waveform and the rise time of the PD waveform became longer. In addition, we simulated the change in the rise time using an equivalent circuit model. The displacement current was calculated from the surface potential distribution estimated by the diffusion equation, and the PD current was simulated by summing up all the current components. As a result, the shoulder was reproduced at the rising part of the PD waveform in the simulation as well. The surface resistance was estimated from the PD waveform by fitting with the experimental results. Waveform ; Partial discharge ; Materials science ; Sheet resistance ; Electrical resistivity and conductivity ; Electrical conductor ; Mechanics ; Displacement (psychology) ; Current (fluid) ; Acoustics ; Diffusion ; Voltage ; Electrical engineering ; Composite material ; Physics ; Engineering ; Thermodynamics High voltage insulation and dielectric phenomena ; Electrostatic Discharge in Electronics ; Plasma Diagnostics and Applications
Authors: P. K. Muhammed Jaslam | P Kumar Amogh | Ajay Kumar
Source: Current Horticulture (article, 2023-01-01)
Field: Chemistry — Analytical Chemistry

Time series modeling and forecasting of vegetable production in United Arab Emirates Crop forecasting is a formidable challenge. The national and state governments need such predictions before harvesting for various policy decisions relating to storage, distribution, pricing, marketing, importexport etc. In this paper, univariate forecasting models such as random walk, linear trend, quadratic trend, exponential trend, S-curve trend, simple exponential smoothing, Holt's linear exponential smoothing and Autoregressive Integrated Moving Average (ARIMA) models are used to predict vegetable production in the United Arab Emirates. For empirical analysis, a set of 9 different vegetable groups have been considered, contingent upon availability of required data. Annual data from 1974–75 to 2018–19 was used to forecast the next five years since 2019. Suitable models were selected based on the lowest RMSE and minimum of AIC criterion. Model diagnostic checking was done through Runs above and below the median, Runs up and down and Ljung-Box tests on ACF and PACF of residual terms. For onions and green shallots linear trend model was selected as the best fit, whereas simple exponential smoothing model was most suitable in cauliflowers and broccoli, pumpkins, squash and gourds and spinach. The optimum model obtained for forecasting carrots and turnips was Holt's linear exponential smoothing model and ARIMA model was the best fit for the rest of vegetable groups. Exponential smoothing ; Autoregressive integrated moving average ; Mathematics ; Statistics ; Moving average ; Econometrics ; Univariate ; Linear model ; Production (economics) ; Time series ; Autoregressive model ; Economics ; Multivariate statistics Spectroscopy and Chemometric Analyses ; Agricultural Economics and Practices
Authors: Philippe Lalanne | Pierre Chavel
Source: Photoniques (article, 2023-01-01)
Field: Materials Science — Electronic, Optical and Magnetic Materials

On the prehistory of optical metasurfaces Before the word « metasurface » first appeared, optical elements that were thinner than a wavelength and deflected light in a direction incompatible with Snell’s law already existed. Based on three examples, we review the underlying concepts and their evolution in the past few decades. Prehistory ; Wavelength ; Optics ; Snell's law ; Physics ; Theoretical physics ; History ; Archaeology ; Refractive index Metamaterials and Metasurfaces Applications ; Quantum optics and atomic interactions ; Orbital Angular Momentum in Optics
Authors: Yidi Zheng | Boping Lei | Bin Fan | Junfeng Du | Jiang Bian | Lihua Wang | Yuchen Liu | Shanghong Guan | Dun Liu | Qian Luo | Yang Hu | Hao Zhang | Chao Hu
Source: Micromachines (article, 2023-03-15)
Field: Materials Science — Surfaces, Coatings and Films

Design, Fabrication and Analysis of a Hybrid-Order Monolithic Imaging Diffractive Lens on a Germanium Substrate Diffractive optical elements are gradually replacing some conventional optical elements and becoming a key component of optical systems due to their unique phase modulation function. However, the imaging performance will be reduced due to the fact that this single-sided microstructured lens still produces chromatic aberration. Therefore, the key issue for the application of diffractive optical elements in optical systems is the reduction of chromatic aberration, and diffractive lenses with double-sided microstructures are proposed as a solution. This research describes the design and analysis of a 70-mm-diameter, 296-mm-focal-length double-sided microstructured hybrid-order monolithic imaging diffractive lens operating in the mid-wave infrared region (3.7-4.7 μm). The design minimizes chromatic aberration by up to 30 times compared to a standard harmonic diffractive lens and improves the image performance of a single-lens optical system operating in the infrared range. Experiments indicate that this design is capable of achieving single-lens imaging with high sensitivity for optical systems with a measured NETD ≤ 50 mK. The analysis of the experiments yielded suggestions for future research. Fabrication ; Germanium ; Substrate (aquarium) ; Lens (geology) ; Materials science ; Optics ; Optoelectronics ; Nanotechnology ; Physics ; Silicon ; Geology Optical Coatings and Gratings ; Advanced optical system design ; Advanced Optical Imaging Technologies
Authors: Tomasz Staśkiewicz | Karol Grochalski | Bartosz Jakubek | Michał Słowiński | Ł. Wojciechowski
Source: Civil-comp conferences (article, 2023-06-29)
Field: Materials Science — Materials Chemistry

A Measuring System for Identifying the Wheel-Rail Pair Wear Intensity using Visible and Infrared Imaging It is currently not possible to experimentally identify specific operating conditions or sections of infrastructure for which certain values of the wear intensity of wheels and rails occur during rail vehicle driving.This paper shows the development of a new approach to characterize the wheel-rail wear by the means of visible and infrared light range imaging.The main assumptions of the undertaking, adopted methods, preliminary and anticipated results are demonstrated.On the basis of the results of preliminary tests in real operation conditions and on a tribological machine, it has been proved that the presented method can be implemented while monitoring the wheel-rail interaction.The issues that need to be solved in order to ensure the appropriate quality of measurement are emphasized, e.g.low emissivity of metal surfaces, difficult access to the wheelset of the vehicle and the presence of contaminants and third bodies in the wheel-rail contact.The utimate goal of the described undertaking is the development and experimental verification of a prototype of a measuring system to identify the wear intensity of the wheel-rail pair.The implementation of the method will contribute to the expansion of research Infrared ; Intensity (physics) ; Materials science ; Optoelectronics ; Computer science ; Optics ; Physics Metal Alloys Wear and Properties ; Surface Roughness and Optical Measurements ; Engineering Applied Research
Authors: Xinbo Chen | Cheng An | Jianyang Zhou | Weiwen Li
Source: Physica Scripta (article, 2023-08-15)
Field: Materials Science — Electronic, Optical and Magnetic Materials

Independent wavefront manipulation of broadband spin-decoupled metasurfaces based on equivalent circuit model Abstract Various functional meta-devices have exhibited powerful manipulation of orbital angular momentum spectrums, but they are still faced with the issue of inherent spin-correlated characteristic and lack of effective method to design metasurface. In this work, a broadband spin-decoupled metasurface is presented to realize independent regulation of dual circularly polarized waves. Based on the transmission line theory, an equivalent circuit model of meta-atom is proposed to establish the relationship between reflection coefficients and structural parameters. By utilizing the model, a group of meta-atoms has been designed with a step phase difference of 45°, which can form a 3-bit coding metasurface. The proposed meta-atoms have a broad frequency band covering 11.56 − 18.17 GHz (44.5%). Moreover, the bifunctional reflection-type metasurfaces are constructed for producing the vortex waves along the + z axis, the off-axis pencil beams, and their synthetic beams. Based on the Fourier transform analysis, the mode purity and the electric field distribution of the generated beams are discussed in detail. The experimental measurements have good agreement with the simulation results, thus revealing the effectiveness of the proposed methodology to design metasurface. Broadband ; Physics ; Wavefront ; Optics ; Equivalent circuit ; Fourier transform ; Reflection (computer programming) ; Angular momentum ; Computational physics ; Computer science ; Quantum mechanics ; Voltage Metamaterials and Metasurfaces Applications ; Advanced Antenna and Metasurface Technologies ; Orbital Angular Momentum in Optics