jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: Cheng Zhang | Yuanhao Wang | Francisco Vicente Carrasco | Chenglei Wu | Jinlong Yang | Thabo Beeler | Fernando De la Torre
Source: arXiv (Cornell University) (preprint, 2024-10-02)
Field: Materials Science — Polymers and Plastics

FabricDiffusion: High-Fidelity Texture Transfer for 3D Garments Generation from In-The-Wild Clothing Images We introduce FabricDiffusion, a method for transferring fabric textures from a single clothing image to 3D garments of arbitrary shapes. Existing approaches typically synthesize textures on the garment surface through 2D-to-3D texture mapping or depth-aware inpainting via generative models. Unfortunately, these methods often struggle to capture and preserve texture details, particularly due to challenging occlusions, distortions, or poses in the input image. Inspired by the observation that in the fashion industry, most garments are constructed by stitching sewing patterns with flat, repeatable textures, we cast the task of clothing texture transfer as extracting distortion-free, tileable texture materials that are subsequently mapped onto the UV space of the garment. Building upon this insight, we train a denoising diffusion model with a large-scale synthetic dataset to rectify distortions in the input texture image. This process yields a flat texture map that enables a tight coupling with existing Physically-Based Rendering (PBR) material generation pipelines, allowing for realistic relighting of the garment under various lighting conditions. We show that FabricDiffusion can transfer various features from a single clothing image including texture patterns, material properties, and detailed prints and logos. Extensive experiments demonstrate that our model significantly outperforms state-to-the-art methods on both synthetic data and real-world, in-the-wild clothing images while generalizing to unseen textures and garment shapes. Clothing ; Texture (cosmology) ; Artificial intelligence ; High fidelity ; Transfer (computing) ; Computer graphics (images) ; Fidelity ; Computer vision ; Computer science ; Geography ; Image (mathematics) ; Physics ; Acoustics ; Archaeology ; Telecommunications Textile materials and evaluations ; 3D Shape Modeling and Analysis
Authors: Kuranga I. Ayinla | Alafara A. Baba | Bankim Chandra Tripathy | R.K. Dwari
Source: Journal of Nepal Chemical Society (article, 2024-08-06)
Field: Chemistry — Inorganic Chemistry

Production of Industrial-Grade Monoclinic Lead Chromate (PbCrO4) from Indigenous Chromite ore for Paint Pigment Utilization Decades of use have proven that lead chromate (PbCrO4) powder is an excellent paint pigment material. Unfortunately, practically this entire superb chromate compound used for decorative systems, protective systems, and mass dyeing of paper and polymer materials is conventionally made using inorganic synthetic chromium salts. In this study, we reported a promising simple, low-cost lead chromate production route derived from chromite ore from Nigeria. The Nigerian chromite ore was roasted in a 1:1 NaOH salt and then leached with water at 60°C. Lead nitrate was added to the leached liquor to further co-precipitate it. The resulting precipitate was then cleaned in ethanol and oven dried for ten hours at 80°C. The experimental results showed that lead ion concentration, temperature and flow rate have large influence on lead chromate precipitation, and the precipitation data fit a diffusion model. The activation energy of lead precipitation obtained was 4.76 kJ/mol, and the reaction order was 0.873 nearly one in relation to the concentration of lead ion. Additionally, XRD, FT-IR, and SEM/EDS comparative investigation of the properties established which favourable paint pigment performance similar to that of commercial industrial lead chromate powder in a range of all established physicochemical properties clarified the developing direction of research on lead chromate synthesis from Chromite leached liquor. Chromite ; Chromate conversion coating ; Precipitation ; Chromium ; Metallurgy ; Ferrochrome ; Materials science ; Lead oxide ; Chemistry Pigment Synthesis and Properties ; Cultural Heritage Materials Analysis ; Dyeing and Modifying Textile Fibers
Authors: Xiaokai Liu | Hao He | Lijuan Zhou | Bai-Yun Zhao | Xuan Zhao | Chenxu Wang | Li Wang
Source: Research Square (preprint, 2024-02-06)
Field: Materials Science — Biomaterials

Study on the Structure Characterization and Swelling Properties of the CMSM Abstract In order to further understand the potential applications of cellulose membrane materials in adsorption, drug delivery, and biomedical applications, to optimize their material properties, improve their performance, and expand their application fields, carboxymethyl Salix powder (CMS) was prepared by etherification reaction using Salix powder (SPP) as the raw material. Carboxymethyl Salix powder membrane (CMSM) was subsequently prepared through wet spinning technology. The swelling properties of CMSM were investigated. The results showed that the swelling degree reached the maximum at 45 minutes, pH 5, temperature of 65°C, and a NaCl concentration of 0.04 mol/L, reaching 7.95 g/g. Through model fitting, it was found that CMSM fits well with the Fickian diffusion model in the early stage, while the entire swelling process fits well with the Schott model. Characterization results indicate that the structure of CMSM is loose, porous, and uneven on the surface. This structure facilitates the diffusion of water molecules and enhances the water absorption performance of CMSM. The structure of CMSM is similar to the disordered structure of glass or plastic, presenting an amorphous structure. Additionally, CMSM exhibits good thermal stability. Key wards : Cellulose membrane; Swelling property; SPP; CMS ———— Xiaokai Liu and Hao He contributed equally to this work.(779960624@qq.com; hehao030533@163.com) Corresponding author at: College of Material Science and Art Design, Inner Mongolia Agricultural University. Hohhot 010018, China E-mail address: wlndcl@126.com (Li.Wang) Swelling ; Characterization (materials science) ; Materials science ; Composite material ; Nanotechnology Advanced Cellulose Research Studies ; biodegradable polymer synthesis and properties ; Silicone and Siloxane Chemistry
Authors: Samih Haj Ibrahim | Damian Koszelow | Małgorzata G. Makowska | Sebastian Molin
Source: Materials & Design (article, 2024-12-14)
Field: Materials Science — Materials Chemistry

Modeling of microstructure evolution during high-temperature oxidation of porous Fe-Cr steels • Corrosion model for porous alloys based on morphological operations has been developed. • Numerical method was validated on SEM, tomographic, and AI-generated microstructures. • Obtained results align with long-term experimental porosity and chromium content data. • Influence of porosity on chromium depletion and alloy lifetime was quantified. Research on the high-temperature oxidation of metals and alloys is experimentally challenging due to the requirement for long-term corrosion exposure, and in the case of porous alloys, due to their complex internal microstructure. In this study, a corrosion model based on the morphological operations of dilation and erosion has been developed. This approach allows for a utilization of various raster representations of the microstructure as input to investigate the microstructure evolution of porous alloys during the corrosion process. Herein, porous microstructures of the porous Fe-Cr steels obtained from SEM imaging, X-ray tomography, and artificial 3D models generated with the use of Generative Adversarial Networks were used as test cases. The obtained results demonstrated high compliance with the experimental evaluation of porosity evolution and chromium content decrease during oxidation at 700 °C for 3000 h. Additionally, new material microstructures were studied and the influence of initial porosity on the chromium content depletion and alloy lifetime during long-term oxidation was revealed. Materials science ; Microstructure ; Porosity ; Metallurgy ; Composite material Metal Alloys Wear and Properties ; Microstructure and Mechanical Properties of Steels ; Advanced materials and composites
Authors: Samih Ibrahim | Damian Koszelow | Małgorzata G. Makowska | Sebastian Molin
Source: SSRN Electronic Journal (preprint, 2024-01-01)
Field: Materials Science — Materials Chemistry

Modeling of Microstructure Evolution During High-Temperature Oxidation of Porous Fe-Cr Steels Microstructure ; Porosity ; Materials science ; Metallurgy ; Chemical engineering ; Composite material ; Engineering Metal Alloys Wear and Properties ; Metallurgy and Material Forming ; Powder Metallurgy Techniques and Materials
Authors: Hamidreza Azimi | Farid Ghanizadeh
Source: Journal of Thermoplastic Composite Materials (article, 2024-12-12)
Field: Materials Science — Polymers and Plastics

The thermodynamic numerical model of nitrogen diffusivity in poly (vinyl alcohol) In this work, we recommended a numerical model in which the diffusivity of nitrogen in poly (vinyl alcohol) (PVA) could be determined from the specific volume of polymer/gas system. In this study, PVA with applicable properties was used as polymer matrix and supercritical nitrogen (N 2 ), was selected as a gas or blowing agent. Firstly, the solubility and diffusivity of nitrogen into PVA were calculated via a magnetic suspension balance (MSB) system. The effects revealed that the thermodynamic parameters like solubility and diffusivity of nitrogen improved with an increase in pressure. Furthermore a diffusion model was proposed, considering the thermodynamic aspects of PVA/N 2 system. It has been proven that there was an appropriate overlapping among the experimental and expected amounts from the model. Also it was shown that the model effectively predict the diffusion coefficient of nitrogen in PVA whenever the chemical potential derivative and the absolute specific free volume of N 2 in PVA were known. Vinyl alcohol ; Materials science ; Thermal diffusivity ; Composite material ; Nitrogen ; Alcohol ; Thermodynamics ; Polymer chemistry ; Chemical engineering ; Polymer ; Organic chemistry ; Chemistry Polymer Foaming and Composites ; Adsorption, diffusion, and thermodynamic properties of materials ; Polymer Science and PVC
Authors: P.F. Méndez | Erwin Sepúlveda Sandoval | M. Reyes | Ramón Ahumada Rudolph | Vanessa Novoa
Source: Journal of the Chilean Chemical Society (article, 2024-09-01)
Field: Chemistry — Inorganic Chemistry

HYBRID MATERIALS BASED IN METAL-ORGANIC-FRAMEWORKS SUPPORTED ACTIVATED CARBON AS A NOVEL MATERIALS FOR CO2 ADSORPTION FOR ENVIRONMENTAL AND ENERGY APPLICATIONS A composite of Ni-MOF-5 (NixZn4-xO(HCOO)3(BCD)3 (0<x<4)) and activated carbon were synthesized through a microwave synthesis method with reflux.Various characterization techniques were performed, including XRD, TGA, SEM, EDS, FT-IR, and BET isotherm.The surface study of the material shows the presence of crystals with a cubic structure of Ni-MOF-5 with sizes smaller than 10 m.A superficial area of 718 m 2 /g and thermostability with a mass loss of 4.72% at 459C of the metal-organic framework were observed.The results for different CO2 concentrations at 1 bar and 25 C show that the adsorption capacity had a linear relationship between % CO2 and the amount of CO2 adsorbed by the hybrid material.The results also showed that by increasing the working temperature in the CO2 adsorption process and keeping the percentage of CO2 constant, the amount of adsorbed CO2 decreases linearly.The adsorption kinetics of CO2 on the prepared hybrid material are consistent with the intraparticle diffusion model, where diffusion is the rate-limiting step.The adsorption of CO2 is energetically and kinetically favorable due to the micro-mesoporosity of the material that allows the entry of CO2 molecules into the pores. Adsorption ; Metal-organic framework ; Materials science ; Activated carbon ; Carbon fibers ; Metal ; Chemical engineering ; Environmental chemistry ; Nanotechnology ; Chemistry ; Organic chemistry ; Metallurgy ; Engineering ; Composite material Metal-Organic Frameworks: Synthesis and Applications ; Catalytic Processes in Materials Science ; Zeolite Catalysis and Synthesis
Authors: Xintao Wu | Yuqi Yue | Juan Chen
Source: SSRN Electronic Journal (preprint, 2024-01-01)
Field: Chemistry — Analytical Chemistry

Novel Virtual Sample Generation and Screening Method for Solving the Small Data Problem in Modeling the Extraction Process of Botanical Medicinal Materials Process (computing) ; Extraction (chemistry) ; Computer science ; Sample (material) ; Process engineering ; Data mining ; Chromatography ; Engineering ; Chemistry Spectroscopy and Chemometric Analyses
Authors: É. S. Mkrtchyan | A. A. Popova | И. Н. Шубин
Source: Inorganic Materials Applied Research (article, 2024-04-01)
Field: Chemistry — Spectroscopy

A Study of Promising Carbon Sorbents Prepared via High-Temperature Activation in Purification Processes of Aqueous Solutions from Dyes The sorption capacity of a highly porous carbon material obtained via high-temperature alkaline activation and activation with additional steam treatment was found. The resulting activated highly porous carbon material possessed a specific surface area of 2600–2700 m2/g and a pore volume of more than 1.3 cm3/g. High sorption activity was revealed relative to methylene blue (1075, 1865, and 2010 mg/g for carbonizate, AC-1, and AC-2, respectively) and the sunset (66, 934, and 972 mg/g for carbonizate, AC-1, and AC-2, respectively) organic dyes. The time to reach sorption equilibrium for the sorbents was found to be from 15 to 30 min. The resulting kinetic data were processed with pseudo-first-order and pseudo-second-order, Elovich, and intraparticle diffusion models. The pseudo-second-order model provided the highest correlation coefficients R2 (when methylene blue dye molecules are removed, R2 for AC-2, AC-1, and carbonizate are 1, 1, and 0.9999, respectively; when sunset dye molecules are removed, R2 for AC-2, AC-1, and carbonizate are 1, 0.9999, and 0.9994, respectively). It was found that the chemical interaction proceeds between dye molecules and functional groups of a sorbent. It was revealed that the activated carbon material can serve as a highly effective absorber of organic pollutants from aqueous solutions. Aqueous solution ; Chemical engineering ; Carbon fibers ; Chemistry ; Materials science ; Organic chemistry ; Composite material ; Engineering Adsorption, diffusion, and thermodynamic properties of materials ; Adsorption and biosorption for pollutant removal ; Aerogels and thermal insulation
Authors: S. V. Kuzin | T. A. Ivanova | Peter Timashev | Е. Н. Голубева
Source: Moscow University Chemistry Bulletin (article, 2024-12-01)
Field: Chemistry — Organic Chemistry

Mechanism Based on Formation, Closure and Overgrowth of Pores Describing Zero-Order Release from Polylactide Films The use of drug delivery systems requires an understanding of the release kinetic patterns of an encapsulated drug or a model compound. In this work, the zero-order release of the pH-sensitive nitroxide radical 5,5-dimethyl-4-dimethylamino-2-ethyl-2-(4-pyridyl)-2,5-dihydroimidazole-1-oxyl (DPI) from poly-D,L-lactide (PDLLA) films into aqueous buffer solution was studied with continuous-wave electron paramagnetic resonance spectroscopy (EPR). The EPR method allowed for quantifying the DPI release kinetics from PDLLA films and analyzing rotational mobility and the concentration of the spin probe inside the films during their swelling and degradation. The EPR data were globally analyzed within the previously proposed phenomenological diffusion model based on the processes of pores formation and overgrowth in polyester films. The interaction between the doubly protonated DPI cation, formed in acid media inside the polymer pores, and the counterions of (oligo)lactic acid is proposed. Such interaction leads to the formation of bulk DPI-containing paramagnetic aggregates which make the release kinetics diffusion-controlled. This is in contrast to the pore-formation control observed for the standard spin probe 4-hydroxy-2,2,6,6-tetramethylpiperidine-1-oxide (TEMPOL). Therefore, the release rate depends on the thickness of the film and the size and the charge of the dopant. Keywords: poly-D,L-lactide films; spin probes; electron paramagnetic resonance; mechanism of drug release; mathematical model of the release kinetics; zero-order release. Chemistry ; Closure (psychology) ; Mechanism (biology) ; Zero order ; Order (exchange) ; Zero (linguistics) ; Chemical engineering ; First order ; Business ; Applied mathematics ; Mathematics ; Market economy Surfactants and Colloidal Systems ; Advanced Polymer Synthesis and Characterization ; Mesoporous Materials and Catalysis
Authors: Manar Abdulameer Sachit | Sameer H. Kareem
Source: Ibn AL- Haitham Journal For Pure and Applied Science (article, 2024-04-20)
Field: Materials Science — Materials Chemistry

Metoprolol Tartrate Drug Loading and Release from Prepared Mesoporous Silica; Kinetic of Adsorption and Release Mesoporous silica was developed to transport metoprolol tartrate (MPT). The data obtained from the kinetic experiments of adsorption of 15 ppm of MPT drug at 293 K was fitted in the pseudo-first-order, pseudo-second-order, and intraparticle diffusion models. The results show that the adsorption process obeys the pseudo-first-order equation and the rate-controlling step, not just the intraparticle diffusion step. The MPT drug load onto mesoporous silica was 15.13 mg/g. The release profile shows that the MPT drug was about 55% released after 40 min when released in water, while in phosphate-buffered saline (PBS) media, the release reached 90% after 60 min at body temperature (37°C). Three kinetic release versions, including first-order, Kopcha, and Korsmeyer-Peppas, were used to fit the in vitro drug release data. The results indicate that the Korsmeyer-Peppas model provided the best fit. The predicted n values show that the release process for water and PBS pH 7.4 media is not Fickian. Metoprolol Tartrate ; Adsorption ; Mesoporous silica ; Metoprolol ; Kinetic energy ; Mesoporous material ; Tartrate ; Chemistry ; Chemical engineering ; Chromatography ; Controlled release ; Materials science ; Inorganic chemistry ; Organic chemistry ; Catalysis ; Medicine ; Nanotechnology ; Anesthesia Mesoporous Materials and Catalysis ; Analytical Chemistry and Chromatography ; Adsorption, diffusion, and thermodynamic properties of materials
Authors: Hong Zhang | Guohua Li
Source: arXiv (Cornell University) (preprint, 2024-06-27)
Field: Chemistry — Physical and Theoretical Chemistry

Chemical Continuous Time Random Walks under Anomalous Diffusion Chemical master equation plays an important role to describe the time evolution of homogeneous chemical system. In addition to the reaction process, it is also accompanied by physical diffusion of the reactants in complex system that is generally not homogeneous, which will result in non-exponential waiting times for particle reactions and diffusion. In this paper we shall introduce a chemical continuous time random walk under anomalous diffusion model based on renewal process to describe the general reaction-diffusion process in the heterogeneous system, where the waiting times are arbitrary distributed. According to this model, we will develop the systematic stochastic theory including generalizing the chemical diffusion master equation, deriving the corresponding mass action law, and extending the Gillespie algorithm. As an example, we analyze the monomolecular $A\leftrightarrow B$ reaction-diffusion system for exponential and power-law waiting times respectively, and show the strong fractional memory effect of the concentration of the reactants on the history of the concentration in power-law case. Random walk ; Continuous-time random walk ; Anomalous diffusion ; Diffusion ; Statistical physics ; Mathematics ; Physics ; Computer science ; Innovation diffusion ; Statistics ; Thermodynamics History and advancements in chemistry ; Computational Drug Discovery Methods ; Analytical Chemistry and Chromatography
Authors: Bikash Mohanty
Source: AIP conference proceedings (article, 2024-01-01)
Field: Chemistry — Spectroscopy

A mathematical study of silica aerogel as a solid greenhouse medium over a thermal absorber Energy-saving, energy alternatives and carbon-neutral energy conversion technologies are the most famous layman-used phrases in the present times. Energy catastrophes are not misconceptions and the aftermaths of endless exploitation of energy are horrific. It all comes to solutions like using clean energy technology, promising energy-saving methods and improving the efficiency of the available energy conversion technology sourced by renewable energy. Finding a factual way of saving and utilisation of energy should be our major concern. New generation thermal insulation is apt for energy conversion and energy saving. Silica aerogel is one of those exquisite insulating non-crystalline solid air-like nano porous materials. A transparent, nano porous, low thermal conductivity, convection obstructing ultra-light and infrared absorbing material can be analogous to the greenhouse effect of the earth. So, it can be used as a solid greenhouse medium. The solar radiation can come across through the earth's envelope and greenhouse gases can trap the heat by absorbing longer wavelength of thermal emission from the earth's surface likewise the solid greenhouse medium should be transparent to the incoming solar radiation and could absorb the thermal emission from higher temperature solid greenhouse covered body. By using the help of kinetic theory and Debye's phonon model the solid thermal conductivity and by using Knudsen diffusion model the gas thermal conductivity of silica aerogel are studied. Later in this paper, the attenuation cross-section of the extinction of the photons is investigated. The non-dimensional number greenhouse selectivity is being proposed. The condition for maximum stagnation temperature and the optimised thickness of the silica aerogel for maximum receiver efficiency is discussed. By using the Rosseland diffusion model the effective radiative conductivity and the Roseland radiative heat flux are generated. Aerogel ; Greenhouse ; Materials science ; Thermal ; Composite material ; Process engineering ; Engineering ; Physics ; Thermodynamics Aerogels and thermal insulation ; Urban Heat Island Mitigation ; Thermal Radiation and Cooling Technologies
Authors: Tianyu Hu | Hong Zhang | Nima Khodadadi | Woubishet Zewdu Taffese | Antonio Nanni
Source: SSRN Electronic Journal (preprint, 2024-01-01)
Field: Materials Science — Materials Chemistry

Enhancing Bond Strength Prediction at Uhpc-Nc Interface: A Data-Driven Approach with Augmentation and Explainability Download ; Computer science ; Interface (matter) ; Operating system Machine Learning in Materials Science ; Hydrogen embrittlement and corrosion behaviors in metals ; Integrated Circuits and Semiconductor Failure Analysis