jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: Svetlana E. Sokolova
Source: Международный строительный конгресс. Наука. Инновации. Цели. Строительство. (article, 2023-08-22)
Field: Materials Science — Materials Chemistry

EFFECTIVE METHODS OF SECONDARY PROTECTION TO INCREASE THE DURABILITY OF REINFORCED CONCRETE STRUCTURES ГЕОДЕЗИЧЕСКИЕ МЕТОДЫ НЕДОПУЩЕНИЯ АВАРИЙНЫХ СИТУАЦИЙ Durability ; Reinforced concrete ; Structural engineering ; Computer science ; Composite material ; Forensic engineering ; Reliability engineering ; Materials science ; Engineering Structural mechanics and materials ; Concrete Corrosion and Durability ; Geodetic Measurements and Engineering Structures
Authors: Konstantin E. Ignatov
Source: Международный строительный конгресс. Наука. Инновации. Цели. Строительство. (article, 2023-08-22)
Field: Materials Science — General Materials Science

SEISMIC-INSULATING RUBBER-METAL SUPPORTS WITH A LEAD CORE MANUFACTURED BY VASS LLC ГЕОДЕЗИЧЕСКИЕ МЕТОДЫ НЕДОПУЩЕНИЯ АВАРИЙНЫХ СИТУАЦИЙ Natural rubber ; Core (optical fiber) ; Lead (geology) ; Metal ; Materials science ; Composite material ; Metallurgy ; Geology Material Properties and Applications ; Innovations in Concrete and Construction Materials ; Additive Manufacturing and 3D Printing Technologies
Authors: L. García-Barrachina
Source: Materials research proceedings (article, 2023-06-28)
Field: Materials Science — Materials Chemistry

Comparative studies of hyperbolic sine constitutive models for constant pressure superplastic tests Abstract. The constant pressure free-inflation test is a very versatile and simple tool for analyzing different features of superplastic forming. In recent years, different methods have been proposed to measure constitutive parameters of the stress–strain relationship for the superplastic material, specifically the K and m parameters of the power law model. However, this law is restricted to be used in narrow strain-rate ranges, and poor results are obtained when applied in a broader spectrum. To overcome this problem, numerous constitutive models covering the full strain-rate range applicable in superplastic forming have been proposed historically, including the hyperbolic sine equation. However, there is no clear consensus on the type of hyperbolic sine function to use. Some authors include a sensitivity parameter while others do not. This article aims to study the characteristics of the hyperbolic sine constitutive model, checking which of the historically proposed models achieves better results in the test at free deformation and constant pressure. Superplasticity ; Hyperbolic function ; Constitutive equation ; Constant (computer programming) ; Sine ; Deformation (meteorology) ; Strain rate ; Mathematical analysis ; Mathematics ; Mechanics ; Materials science ; Computer science ; Structural engineering ; Physics ; Engineering ; Geometry ; Metallurgy ; Finite element method ; Composite material Microstructure and mechanical properties ; Advanced Surface Polishing Techniques ; Metal Forming Simulation Techniques
Authors: Muhamad Haikal Daniel Mohamad Sabri | Anis Atikah Ahmad | Mohd Azmier Ahmad
Source: Research Square (preprint, 2023-09-07)
Field: Materials Science — Materials Chemistry

ASPAD Dynamic Simulation &amp;amp; Artificial Neural Network for Acetaminophen Adsorption in Biochar Packed Bed Column Abstract The presence of acetaminophen (ACT) as a significant pollutant in domestic and hospital wastewaters has raised concerns regarding its removal from these sources. In this study, researchers focused on comparing the breakthrough and saturation time of ozone-treated granular activated carbon (GAC) for the removal of ACT. The dynamic simulation of an adsorption column using Aspen Adsorption (ASPAD) was employed, and the effects of flow rate, ACT initial concentration, and bed height on breakthrough curves were investigated. The results indicated that increasing the bed height led to longer breakthrough and saturation times, accompanied by higher adsorption capacity. Conversely, higher initial concentrations of ACT resulted in reduced breakthrough and saturation times. Similarly, higher flow rates led to shorter breakthrough and saturation times. The optimal operating conditions for achieving the highest breakthrough and saturation were identified as a bed height of 45 cm, ACT initial concentration of 40 mg/L, and flow rate of 2 mL/min. The simulation results were validated against experimental findings, demonstrating satisfactory agreement between the two. Furthermore, an Artificial Neural Network (ANN) model was developed to predict the outlet concentration ratio, exhibiting reliable performance with a low mean squared error value. By understanding the impact of various factors on breakthrough and saturation times, researchers can optimize the design and operation of adsorption columns for efficient ACT removal. The reliable ANN model developed in this study can also aid in predicting outlet concentration ratios, providing a valuable tool for future research and application in wastewater treatment processes. Adsorption ; Saturation (graph theory) ; Volumetric flow rate ; Biochar ; Wastewater ; Activated carbon ; Pollutant ; Packed bed ; Breakthrough curve ; Environmental science ; Chromatography ; Chemistry ; Environmental engineering ; Materials science ; Pulp and paper industry ; Chemical engineering ; Mathematics ; Engineering ; Thermodynamics ; Organic chemistry ; Physics Covalent Organic Framework Applications ; Adsorption and biosorption for pollutant removal ; Membrane Separation Technologies
Authors: Feng Xu | Jialong Chen | Yong Hou | Juan Cheng | Tony K. C. Hui | Shih‐Chi Chen | Zhiqin Chu
Source: arXiv (Cornell University) (preprint, 2023-07-27)
Field: Materials Science — Materials Chemistry

Super-resolution enabled widefield quantum diamond microscopy Widefield quantum diamond microscopy (WQDM) based on Kohler-illumination has been widely adopted in the field of quantum sensing, however, practical applications are still limited by issues such as unavoidable photodamage and unsatisfied spatial-resolution. Here, we design and develop a super-resolution enabled WQDM using a digital micromirror device (DMD)-based structured illumination microscopy. With the rapidly programmable illumination patterns, we have firstly demonstrated how to mitigate phototoxicity when imaging nanodiamonds in cell samples. As a showcase, we have performed the super-resolved quantum sensing measurements of two individual nanodiamonds not even distinguishable with conventional WQDM. The DMD-powered WQDM presents not only excellent compatibility with quantum sensing solutions, but also strong advantages in high imaging speed, high resolution, low phototoxicity, and enhanced signal-to-background ratio, making it a competent tool to for applications in demanding fields such as biomedical science. Microscopy ; Digital micromirror device ; Optics ; Diamond ; Quantum ; Optoelectronics ; Image resolution ; Materials science ; Superresolution ; Quantum dot ; Nanotechnology ; Resolution (logic) ; Hyperspectral imaging ; Computer science ; Physics ; Computer vision ; Artificial intelligence Diamond and Carbon-based Materials Research ; Advanced Fiber Laser Technologies ; Force Microscopy Techniques and Applications
Authors: Andrey V. Sheynfeld
Source: Международный строительный конгресс. Наука. Инновации. Цели. Строительство. (article, 2023-08-22)
Field: Materials Science — Materials Chemistry

NEW MODIFIED CONCRETE AS A FACTOR OF ENVIRONMENTAL IMPROVEMENT ГЕОДЕЗИЧЕСКИЕ МЕТОДЫ НЕДОПУЩЕНИЯ АВАРИЙНЫХ СИТУАЦИЙ Factor (programming language) ; Computer science ; Environmental science ; Programming language Structural mechanics and materials ; Advanced Energy Technologies and Civil Engineering Innovations ; Construction Management and Sustainability
Authors: Andrey V. Shevchenko | Nikolay N. Baglaev
Source: Международный строительный конгресс. Наука. Инновации. Цели. Строительство. (article, 2023-08-22)
Field: Materials Science — General Materials Science

CALCULATION OF COMPRESSED-BENDABLE ELEMENTS WITH PHYSICAL AND GEOMETRIC NONLINEARITY ГЕОДЕЗИЧЕСКИЕ МЕТОДЫ НЕДОПУЩЕНИЯ АВАРИЙНЫХ СИТУАЦИЙ Nonlinear system ; Computer science ; Materials science ; Physics Material Properties and Applications ; Advanced Theoretical and Applied Studies in Material Sciences and Geometry ; Composite Structure Analysis and Optimization
Authors: K. P. Skokov | A. Yu. Karpenkov | D. Karpenkov | I. A. Radulov | D. Günzing | B. Eggert | A. Rogalev | F. Wilhelm | J. Liu | Y. Shao | K. Ollefs | M. E. Gruner | H. Wende | Oliver Gutfleisch
Source: arXiv (Cornell University) (preprint, 2023-03-24)
Field: Materials Science — Electronic, Optical and Magnetic Materials

A multi-stage, first-order phase transition in LaFe11.8Si1.2: interplay between the structural, magnetic and electronic degrees of freedom Alloys with a first-order magnetic transition are central to solid-state refrigeration technology, sensors and actuators, or spintronic devices. The discontinuous nature of the transition in these materials is a consequence of the coupling between the magnetic, electronic and structural subsystems, but in a real experiment, it is difficult to observe and analyze the simultaneous evolution of all the subsystems. As a result, it is very hard to determine the main mechanisms of the transition and purposefully develop these advanced magnetic materials. To resolve this issue, we changed the existing paradigm and conducted simultaneous measurements of the macroscopic properties - magnetization, temperature change of the sample, longitudinal and transversal magnetostrictions - to reveal the rich details of the magneto-structural, first-order transition occurring in the prototypical alloy LaFe11.8Si1.2. We complement these findings with experiments on the atomistic scale, i.e., x-ray absorption spectroscopy (XAS), x-ray magnetic circular dichroism (XMCD) and Mössbauer spectroscopy, and then combine them with first-principles calculations to reveal the full complexity and two-stage nature of the transition. This new approach can be successfully extended to a large class of advanced magnetic materials that exhibit analogous transformations. Spintronics ; Condensed matter physics ; X-ray absorption spectroscopy ; Phase transition ; Magnetization ; Materials science ; Magnetic circular dichroism ; Coupling (piping) ; Magnetic field ; Physics ; Absorption spectroscopy ; Ferromagnetism ; Optics ; Quantum mechanics Magnetic Properties of Alloys ; Magnetic and transport properties of perovskites and related materials ; Rare-earth and actinide compounds
Authors: Shaohua Guan | Zhichao Zhang | Zihan Zhang | Hualin Shi
Source: arXiv (Cornell University) (preprint, 2023-08-09)
Field: Chemistry — Physical and Theoretical Chemistry

Universal scaling relation and criticality in metabolism and growth of Escherichia coli The metabolic network plays a crucial role in regulating bacterial metabolism and growth, but it is subject to inherent molecular stochasticity. Previous studies have utilized flux balance analysis and the maximum entropy method to predict metabolic fluxes and growth rates, while the underlying principles governing bacterial metabolism and growth, especially the criticality hypothesis, remain unclear. In this study, we employ a maximum entropy approach to investigate the universality in various constraint-based metabolic networks of Escherichia coli. Our findings reveal the existence of universal scaling relations across different nutritional environments and metabolic network models, similar to the universality observed in physics. By analyzing single-cell data, we confirm that metabolism of Escherichia coli operates close to the state with maximum Fisher information, which serves as a signature of criticality. This critical state provides functional advantages such as high sensitivity and long-range correlation. Moreover, we demonstrate that a metabolic system operating at criticality takes a compromise solution between growth and adaptation, thereby serving as a survival strategy in fluctuating environments. Escherichia coli ; Criticality ; Scaling ; Relation (database) ; Metabolism ; Chemistry ; Biology ; Physics ; Computer science ; Mathematics ; Biochemistry ; Data mining ; Gene thermodynamics and calorimetric analyses ; Protein Structure and Dynamics ; Computational Drug Discovery Methods
Authors: Akiko T. Saito | Hiroyuki Takeya | Takafumi D. Yamamoto | Koji Kamiya | Koichi Matsumoto | Takenori Numazawa
Source: TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan) (article, 2023-03-19)
Field: Materials Science — Electronic, Optical and Magnetic Materials

Magnetic Refrigerant Materials for Hydrogen Liquefaction by Active Magnetic Regenerative Refrigeration Magnetic refrigerant materials are one of the key factors for governing the cooling performance of magnetic refrigeration systems. In particular, not only the physical properties such as magnetocaloric effects, but also the practical form of the magnetic material are of crucial importance to active magnetic regenerative refrigeration （AMRR）. In this JST-mirai project, the development of several types of magnetic materials that show the large magnetocaloric effects in the temperature range from 20 K to 80 K and fabrication of spherical particles of the materials were conducted. The magnetic properties and magnetocaloric effects between the mother-alloy and spherical particles were compared for HoAl2, ErCo2, and HoB2. Moreover, thermal property and electrical property as well as the shape and size of the materials are discussed from the perspective of their application to the AMRR system for hydrogen liquefaction. Magnetic refrigeration ; Refrigerant ; Materials science ; Refrigeration ; Liquefaction ; Magnet ; Thermodynamics ; Mechanical engineering ; Magnetic field ; Gas compressor ; Magnetization ; Physics ; Engineering Magnetic and transport properties of perovskites and related materials ; Optical properties and cooling technologies in crystalline materials ; Magnetic Properties of Alloys
Authors: Bridget Carragher | Clinton S. Potter
Source: Microscopy and Microanalysis (article, 2023-07-22)
Field: Materials Science — Surfaces, Coatings and Films

Better, Faster, Cheaper, Smarter: Advancing Cryo-EM Journal Article Better, Faster, Cheaper, Smarter: Advancing Cryo-EM Get access Bridget Carragher, Bridget Carragher Chan Zuckerberg Imaging Institute, Redwood City, CA, USA Corresponding author: bcarragher@chanzuckerberg.com Search for other works by this author on: Oxford Academic Google Scholar Clinton S Potter Clinton S Potter Chan Zuckerberg Imaging Institute, Redwood City, CA, USA Search for other works by this author on: Oxford Academic Google Scholar Microscopy and Microanalysis, Volume 29, Issue Supplement_1, 1 August 2023, Page 1018, https://doi.org/10.1093/micmic/ozad067.514 Published: 22 July 2023 Library science ; Political science ; Computer science Electron and X-Ray Spectroscopy Techniques ; Advanced Electron Microscopy Techniques and Applications ; Advanced Materials Characterization Techniques
Authors: Yanlei Li | Zihao Yang | Mengyu Bai | Jun Dong | Hui Teng | Wenxiu Wang
Source: BIO Web of Conferences (article, 2023-01-01)
Field: Chemistry — Analytical Chemistry

Advance in application of rapid non-destructive testing technology in the detection of apple mold heart disease Apples are rich in vitamins and dietary fiber, and are one of the essential fruits and vegetables in People’s Daily diet. China is a big apple consumer, and with the improvement of people’s pursuit of quality of life and the improvement of nutrition and health requirements, the demand for high-quality apples has increased year by year. Apple mold heart disease is one of the main diseases affecting apple quality, this disease can not be identified from the outside, so the detection is very difficult, and spectral technology, electromagnetic technology and other non-destructive testing technology has accurate, efficient, convenient, non-destructive advantages, can greatly reduce the difficulty of detection of mold heart disease. This paper mainly analyzed the application of non-destructive testing technology in the detection of apple mold heart disease, combined with the current rapid development of AI technology to discuss the future development direction of each technology in the field of apple mold heart disease rapid detection. Mold ; Quality (philosophy) ; Heart disease ; Disease ; Computer science ; Medicine ; Pathology ; Biology ; Botany Spectroscopy and Chemometric Analyses ; Advanced Chemical Sensor Technologies ; Water Quality Monitoring and Analysis
Authors: Vyacheslav R. Falikman
Source: Международный строительный конгресс. Наука. Инновации. Цели. Строительство. (article, 2023-08-22)
Field: Materials Science — Materials Chemistry

SCIENTIFIC AND TECHNICAL SUPPORT FOR THE CONSTRUCTION OF NUCLEAR FACILITIES: NEW MATERIALS AND TECHNOLOGIES ГЕОДЕЗИЧЕСКИЕ МЕТОДЫ НЕДОПУЩЕНИЯ АВАРИЙНЫХ СИТУАЦИЙ Construction engineering ; Computer science ; Systems engineering ; Engineering Graphite, nuclear technology, radiation studies ; Nuclear and radioactivity studies
Authors: Zexin Zhang | Denghui Qian | Long Ren | Qi Wang
Source: Journal of Theoretical and Applied Mechanics/Mechanika Teoretyczna i Stosowana (article, 2023-11-26)
Field: Materials Science — Materials Chemistry

Ultrahigh frequency vibration control in a piezoelectric phononic crystal beam at the nanoscale considering surface effects In this paper, a piezoelectric phononic crystal beam at the nanoscale has been mechanically modeled by using the surface piezoelectric theory.The band gap has been calculated by the plane wave expansion method and the band gap structure picture has been analyzed.The influence of electromechanical coupling effects, surface effects and geometry on the band gap properties are discussed separately.This study contributes positively to the design and active control of nanoelectromechanical systems. Piezoelectricity ; Nanoscopic scale ; Materials science ; Beam (structure) ; Vibration ; Acoustics ; Crystal (programming language) ; Physics ; Optics ; Nanotechnology ; Composite material ; Computer science Nonlocal and gradient elasticity in micro/nano structures ; Ultrasonics and Acoustic Wave Propagation ; Composite Material Mechanics
Authors: Simanta Lahkar | Raghavan Ranganathan
Source: arXiv (Cornell University) (preprint, 2023-07-24)
Field: Materials Science — Materials Chemistry

Competing mechanisms govern the thermal rectification behavior in semi-stochastic polycrystalline graphene with graded grain-size distribution Thermal rectifiers are devices that have different thermal conductivities in opposing directions of heat flow. The realization of practical thermal rectifiers relies significantly on a sound understanding of the underlying mechanisms of asymmetric heat transport, and two-dimensional materials offer a promising opportunity in this regard owing to their simplistic structures together with a vast possibility of tunable imperfections. However, the in-plane thermal rectification mechanisms in 2D materials like graphene having directional gradients of grain sizes have remained elusive. In fact, understanding the heat transport mechanisms in polycrystalline graphene, which are more practical to synthesize than large-scale single-crystal graphene, could potentially allow a unique opportunity, in principle, to combine with other defects and designs for effective optimization of thermal rectification. In this work, we investigate the thermal rectification behavior in periodic atomistic models of polycrystalline graphene whose grain arrangements were generated semi-stochastically to have different gradient grain-density distributions along the in-plane heat flow direction. We employ the centroidal Voronoi tessellation technique to generate realistic grain boundary structures for graphene, and the non-equilibrium molecular dynamics simulations method is used to calculate the thermal conductivities and rectification values. Additionally, detailed phonon characteristics and propagating phonon spatial energy densities are analyzed based on the fluctuation-dissipation theory to elucidate the competitive interplay between two underlying mechanisms, namely, (1) propagating phonon coupling and (2) temperature-dependence of thermal conductivity that determine the degree of asymmetric heat flow in graded polycrystalline graphene. Graphene ; Materials science ; Phonon ; Thermal conductivity ; Crystallite ; Rectification ; Grain boundary ; Condensed matter physics ; Thermal ; Nanotechnology ; Composite material ; Physics ; Thermodynamics ; Microstructure Thermal properties of materials ; nanoparticles nucleation surface interactions ; Advanced Thermodynamics and Statistical Mechanics
Authors: Irina V. Lebedeva | Tatiana A. Petrova
Source: Международный строительный конгресс. Наука. Инновации. Цели. Строительство. (article, 2023-08-22)
Field: Materials Science — Materials Chemistry

THE BASIC PRINCIPLES OF ENSURING THE RELIABILITY OF STRUCTURES IN THE NATIONAL AND FOREIGN BUILDING CODES ГЕОДЕЗИЧЕСКИЕ МЕТОДЫ НЕДОПУЩЕНИЯ АВАРИЙНЫХ СИТУАЦИЙ Reliability (semiconductor) ; Computer science ; Reliability engineering ; Engineering ; Physics Structural mechanics and materials
Authors: Alexander D. Beglov | Rudolf S. Sanzharovskiy | Tatyana N. Ter-Emmanuilyan
Source: Международный строительный конгресс. Наука. Инновации. Цели. Строительство. (article, 2023-08-22)
Field: Materials Science — Materials Chemistry

PRINCIPLES AND RULES OF THE WORLD THEORY OF CALCULATION OF REINFORCED CONCRETE STRUCTURES FOR CREEP ГЕОДЕЗИЧЕСКИЕ МЕТОДЫ НЕДОПУЩЕНИЯ АВАРИЙНЫХ СИТУАЦИЙ Creep ; Computer science ; Structural engineering ; Reinforced concrete ; Materials science ; Engineering ; Composite material Structural mechanics and materials