jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: Gilar Pandu Annanto | Fandy Indra Pratama | Agung Nugroho | Farika Tono Putri
Source: JURNAL CRANKSHAFT (article, 2024-12-10)
Field: Materials Science — Biomaterials

Implementasi Optimasi Topologi dalam Perencanaan Komponen Penunjang Manipulator pada Robot Penanganan Benda Berbahaya Penelitian ini bertujuan untuk mengembangkan dan mengoptimalkan desain pada salah satu komponen penunjang pada manipulator robot kendali jarak jauh untuk penanganan objek berbahaya. Dalam penelitian ini, digunakan perangkat lunak CAD (Computer-Aided Design) dan CAE (Computer-Aided Engineering) untuk merancang dan menganalisis geometri bracket servo. Geometri awal dianalisis menggunakan material Poly-Lactic Acid (PLA) dengan mempertimbangkan kondisi batas berupa torsi maksimum yang dapat dikeluarkan oleh servo yang digunakan. Hasil analisis awal menunjukkan tegangan maksimal sebesar 3,936 MPa dan deformasi maksimal sebesar 0,062 mm. Proses optimasi topologi dilakukan untuk mereduksi area yang tidak mengalami tegangan besar, menghasilkan geometri baru dengan volume dan massa yang lebih rendah. Setelah optimasi, volume geometri berkurang sebesar 17,5% dan massa berkurang dari 97,213 g menjadi 81,776 g. Analisis lanjutan menunjukkan tegangan maksimal sebesar 3,881 MPa dan deformasi maksimal sebesar 0,09 mm, dengan penurunan tegangan maksimal sebesar 2% dan peningkatan deformasi sebesar 45%. Meskipun terjadi peningkatan deformasi, geometri baru tetap aman dengan faktor keamanan sebesar 18. Physics biodegradable polymer synthesis and properties ; Additive Manufacturing and 3D Printing Technologies ; Advanced Theoretical and Applied Studies in Material Sciences and Geometry
Authors: П. П. Полецков | D. Yu. Alekseev | P.G. Adischev
Source:  (article, 2024-12-11)
Field: Materials Science — Materials Chemistry

STUDY OF THE INFLUENCE OF HARDENING MODES ON THE STRESS STATE OF SHEET STEEL Hardening (computing) ; Materials science ; Stress (linguistics) ; Composite material ; Metallurgy Material Properties and Failure Mechanisms ; Metallurgy and Material Forming ; Microstructure and Mechanical Properties of Steels
Authors: K.K. Aleh | Ph.I. Aliaksandr | Ya.P. Yauheni
Source:  (article, 2024-12-16)
Field: Materials Science — General Materials Science

THEORETICAL FOUNDATIONS OF STRUCTURE FORMATION OF ENERGY-SATURATED HETEROGENEOUS COMPOSITE MATERIAL Composite number ; Materials science ; Composite material ; Computer science Material Properties and Applications ; Advanced Theoretical and Applied Studies in Material Sciences and Geometry ; Material Science and Thermodynamics
Authors: Željko Kos | Victor Pashynskyi | Mykola Pashynskyi | Stanislav Dzhyrma | Iryna Grynyova
Source: Tehnički glasnik (article, 2024-07-15)
Field: Materials Science — Materials Chemistry

Probabilistic Analysis of Window Frame Junctions' Thermal Reliability Indicators to Precast Concrete and Brick Walls The side junctions of metal-plastic block frame windows to the walls of residential buildings at different positions of window frames in the wall cavity are analysed. The duration of thermal failure state by the condensate formation criterion was used as a probabilistic indicator of reliability. The units of uninsulated walls, erected in the second half of the 20th century, have a clearly insufficient thermal reliability level. Thermal insulation of walls according to current design standards in most cases ensures an acceptable of the thermal failure state duration. Precast concrete ; Structural engineering ; Reliability (semiconductor) ; Thermal ; Brick ; Window (computing) ; Frame (networking) ; Block (permutation group theory) ; Thermal insulation ; Probabilistic logic ; Engineering ; Materials science ; Computer science ; Composite material ; Mathematics ; Mechanical engineering ; Layer (electronics) Structural mechanics and materials ; Construction Management and Sustainability ; Environmental and Industrial Safety
Authors: Ananya Nayak | Dipankar Chatterjee | Suvarun Dalapati
Source: Power Electronics and Drives (article, 2024-01-01)
Field: Materials Science — Electronic, Optical and Magnetic Materials

An Experimental Set-up Involving Low-cost Digital Controller to Study the Magnetizing Inrush Current in a Transformer using Point-on-Wave Switching Technique Abstract Generally in under-graduate studies, magnetizing inrush current (MIC) is discussed theoretically without giving much practical exposure. This paper presents the development of a low cost experimental set-up using a digital controller to study the MIC and the different parameters which can affect the same. This also helps to show how the inrush current can be minimized. This set-up also provides a hands-on experience of MIC and its control in under-graduate study, which can help an upcoming practitioner in industry as well as in further research. This paper presents a brief description of MIC, followed by a short analysis. Here, a pair of anti-parallel thyristors are connected in series with the primary winding of a single-phase power transformer. The turningon instant of this switch, with respect to the zero-crossing instant of the input supply voltage, may be adjusted through a firmware, in a PIC18F4620 from Microchip Technology microcontroller development board from Microchip Technology to control the transformer energisation instant. The firmware is developed in MPLABX-IDE from Microchip Technology, and the scheme is verified via simulations in Proteus simulation software. A suitable circuit to support the microcontroller development board to achieve the above function is designed and fabricated. Inrush current ; Set point ; Transformer ; Current (fluid) ; Control theory (sociology) ; Computer science ; Point (geometry) ; Electrical engineering ; Electronic engineering ; Engineering ; Mathematics ; Voltage ; Control engineering ; Artificial intelligence ; Control (management) Magnetic Properties and Applications ; Non-Destructive Testing Techniques ; Magnetic Field Sensors Techniques
Authors: Koske Matsubara | Yukari Yamaguchi | A. Nakamura | Sunao Hasegawa
Source: SSRN Electronic Journal (preprint, 2024-01-01)
Field: Materials Science — Materials Chemistry

Spatial and Shape Distributions of Ejecta from Hypervelocity Impact between Rock Projectile and Metal Target Hypervelocity ; Ejecta ; Projectile ; Projectile point ; Geology ; Astrobiology ; Materials science ; Physics ; Astronomy ; Paleontology ; Metallurgy High-Velocity Impact and Material Behavior
Authors: Milica Bulatović | Jan Hermann | Pascale Tinguely | Iwan Paolucci | Stefan Weber
Source: Frontiers in Oncology (article, 2024-12-20)
Field: Materials Science — Biomaterials

Configuring thermal ablation volumes for treatment of distinct tumor shapes: a repeatability study using a robotic approach The repeatability of configurable ablation shapes was observed to be noninferior to the standard ablation shapes. Achieving configurable ablation volumes underscores the potential to advance personalization of thermal ablation treatment and broaden its applicability to distinct tumor cases. <i>In-vivo</i> validation is needed for evaluation of the clinical implications of this novel treatment technique. Repeatability ; Thermal ablation ; Ablation ; Biomedical engineering ; Thermal ; Computer science ; Medical physics ; Medicine ; Artificial intelligence ; Mathematics ; Physics ; Internal medicine ; Statistics Electrospun Nanofibers in Biomedical Applications ; Fluid Dynamics and Heat Transfer ; Soft Robotics and Applications
Authors: А. И. Зайцев | A. V. Koldaev | И. Г. Родионова | N. A. Arutyunyan
Source:  (article, 2024-12-19)
Field: Materials Science — Materials Chemistry

AN EFFECTIVE APPROACH TO IMPROVING THE PROPERTIES AND QUALITY OF STEELS FOR THE AUTOMOTIVE INDUSTRY Automotive industry ; Quality (philosophy) ; Manufacturing engineering ; Computer science ; Engineering Metal Alloys Wear and Properties
Authors: Tatyana G. Akatieva
Source:  (article, 2024-12-11)
Field: Chemistry — Analytical Chemistry

USE OF MACROPHYTES IN ASSESSING THE TOXICITY OF A CORROSION INHIBITOR USED IN OIL PRODUCTION cryptocurrencies.However, the high value of bitcoin generates a high measure of its absolute volatility, that is, in other words, it generates large possible average losses for an investor when owning bitcoin.2. The econometric model of quotes for all cryptocurrencies is . Cryptocurrency ; Volatility (finance) ; Measure (data warehouse) ; Production (economics) ; Econometrics ; Value (mathematics) ; Economics ; Computer science ; Microeconomics ; Computer security ; Data mining ; Machine learning Petroleum Processing and Analysis ; Electrochemical Analysis and Applications
Authors: Min Son | Lars Zigan | Michael Pfitzner | Tobias Sander
Source:  (article, 2024-07-08)
Field: Chemistry — Spectroscopy

Integrated Optical Diagnostics Of Cyclopentane Sprays To Characterize Transcritical Phase Transitions This research investigates spray phase transitions under subcritical and transcritical conditions relevant to high-pressure combustion systems. Using advanced optical diagnostic techniques, including shadowgraphy (SH), Mie scattering (MS), and infrared radiation (IR) measurements, the study focuses on cyclopentane sprays in a high-pressure, high-temperature chamber filled with gaseous nitrogen. Three cases are studied to understand spray behavior under varying injection conditions. SH and MS analyses reveal significant differences across the cases. As the chamber temperature increases, the liquid core length shortens, indicating enhanced vaporization. This is particularly evident in the MS images, where step-like transitions in the axial distribution highlight abrupt phase changes from liquid to gas in subcritical conditions. Such transitions are absent under supercritical conditions, suggesting a smoother phase transition process. IR measurements provide additional insights into the spray dynamics, especially under transcritical conditions. The IR images display complex downstream (at x/D &gt; 125) signal patterns with bimodal distributions. The application of inverse Abel deconvolution highlights negative intensities near the spray axis downstream, indicative of regions near the pseudo-critical temperature. This phenomenon, characterized by blocked background radiation due to critical opalescence, offers indirect evidence of the pseudo-critical temperature and the associated phase transition dynamics. Dynamic Mode Decomposition (DMD) analysis identifies dominant frequencies around 4.5 kHz, corresponding to injection pressure fluctuations. This correlation suggests that injection pressure variations significantly influence spray fluctuations. Differences in mode shapes among the cases are also observed; lateral fluctuations near the injector nozzle exit are present in Cases 1 and 2 but not in Case 3. Axial fluctuations beyond a certain length are consistent in all cases. The lateral fluctuations are related to the chamber pressure and the potential large-scale vortex formation or cavitation in the nozzle. The combined use of SH, MS, and IR methodologies provides a comprehensive understanding of transcritical spray dynamics, emphasizing the effectiveness of combining multiple optical diagnostic techniques. These findings will improve numerical simulations and contribute to the development of more efficient high-pressure combustion systems. The research underscores the complexity of phase transitions in sprays and the critical role of precise diagnostics in the advancement of combustion technology. Cyclopentane ; Materials science ; Phase (matter) ; Optics ; Physics ; Chemistry ; Quantum mechanics ; Stereochemistry Analytical Chemistry and Chromatography ; Phase Equilibria and Thermodynamics ; Mass Spectrometry Techniques and Applications
Authors: Mohammad Nassiri | Mohammad Yazdi
Source: Advanced Theory and Simulations (article, 2024-03-08)
Field: Materials Science — Electronic, Optical and Magnetic Materials

Image Processing Using High‐Index Dielectric Metasurfaces Based on Fano Resonance Abstract This paper presents the design and analysis of high‐index dielectric metasurfaces based on Fano resonance for image processing applications. With the aim of optical edge detection, two different metasurface structures are proposed to create first‐ and second‐order derivative operators. The metasurfaces designed for second‐order derivative is a square lattice structure consisting of silicon cylinders surrounded by a silicon dioxide layer. Moreover, another metasurface with a square lattice structure composed of three different silicon cylinders embedded in a silicon dioxide layer is proposed to perform first‐order derivation. To achieve the best performance of the proposed metasurfaces in edge detection, the physical dimensions of the proposed structures are optimized by conducting parametric studies to reach the maximum available numerical aperture . Consequently, the second‐order derivative metasurface attains a numerical aperture with a magnitude , while the first‐order derivative metasurface achieves a numerical aperture of . Finally, the applicability of the proposed structures in optical edge detection is verified in the analog domain. The proposed metasurfaces provide high spatial resolution, high efficiency, and low dependence on the horizon angle, which pave the way for high‐quality image processing applications. Optics ; Fano resonance ; Aperture (computer memory) ; Dielectric ; Parametric statistics ; Numerical aperture ; Lattice (music) ; Silicon ; Enhanced Data Rates for GSM Evolution ; Materials science ; Computer science ; Physics ; Optoelectronics ; Plasmon ; Mathematics ; Acoustics ; Telecommunications ; Wavelength Metamaterials and Metasurfaces Applications ; Advanced Antenna and Metasurface Technologies ; Plasmonic and Surface Plasmon Research
Authors: Glaizalyn B. Lictawa | Carlita Baglao
Source: Asian Journal of Advances in Agricultural Research (article, 2024-12-02)
Field: Materials Science — Biomaterials

Development and Evaluation of a Helical Ribbon-Type Mixer for Mushroom Substrate Manual substrate mixing for mushroom production such as rice straws, sawdust, and banana leaves is laborious and time-consuming. Substrates need to be thoroughly mixed to produce mushrooms of good quality. This study was done to design, fabricate, and evaluate the performance of a helical ribbon-type mixer. The performance of the ribbon-type mixer was evaluated in terms of the mixing capacity and mixing efficiency. Loading weight (5kg, 10kg, and 15kg) and operating speed (11-15rpm, 16-20rpm, and 21-25rpm) of the machine were used as the performance parameters. Analysis of Variance (ANOVA) for Factorial Experiment in Completely Randomized Design (CRD) was used to analyze the results while comparison among treatment means was tested at 5% level of significance using Duncan's Multiple Range Test (DMRT). Results revealed that the highest machine capacity of 226.67 kg/hr was attained at a loading weight of 15kg and an operating speed of 21-25rpm. Maximum mixing efficiency (95.27%) was achieved with the combination of 15 kg loading weight and an operating speed of 11-15 rpm. The initial investment in fabricating the substrate mixer for mushroom production was Php 21, 713. Operating the substrate mixer for mushroom production had a projected annual cost of Php 3,655.475. Break – even weight was 91,795.24 kg of substrates per year at a custom rate of Php 0.35 per kilogram. Ribbon ; Mushroom ; Substrate (aquarium) ; Materials science ; Nanotechnology ; Chemistry ; Composite material ; Biology ; Food science Silk-based biomaterials and applications
Authors: Fang Liu | Sławomir Skruszewicz | Julian Späthe | Yinyu Zhang | Sebastian Hell | Bo Ying | G. G. Paulus | Bálint Kiss | Krishna Murari | M. W. Khalil | E. Cormier | Li Guang Jiao | S. Fritzsche | M. Kübel
Source: arXiv (Cornell University) (preprint, 2024-03-15)
Field: Materials Science — Surfaces, Coatings and Films

Exploring Valence Electron Dynamics of Xenon through Laser-Induced Electron Diffraction Strong-field ionization can induce electron motion in both the continuum and the valence shell of the parent ion. Here, we explore their interplay by studying laser-induced electron diffraction (LIED) patterns arising from interaction with the potentials of two-hole states of the xenon cation. The quantitative rescattering theory is used to calculate the corresponding photoelectron momentum distributions, providing evidence that the spin-orbit dynamics could be detected by LIED. We identify the contribution of these time-evolving hole states to the angular distribution of the rescattered electrons, particularly noting a distinct change along the backward scattering angles. We benchmark numerical results with experiments using ultrabroad and femtosecond laser pulses centered at \SI{3100}{nm}. Xenon ; Electron diffraction ; Electron ; Laser ; Atomic physics ; Diffraction ; Valence (chemistry) ; Valence electron ; Physics ; Materials science ; Nuclear physics ; Optics ; Quantum mechanics Electron and X-Ray Spectroscopy Techniques ; Nuclear Physics and Applications ; Ion-surface interactions and analysis
Authors: Adriana Valverde | Javier Roger | Javier Gorroño | Itziar Irakulis‐Loitxate | Luis Guanter
Source:  (preprint, 2024-06-21)
Field: Chemistry — Analytical Chemistry

Detecting methane emissions from palm oil mills with airborne and spaceborne imaging spectrometers Methane (CH4) emissions from human activities are a major cause of global warming, necessitating effective mitigation strategies. In particular, the palm oil industry generates palm oil mill effluent (POME), which continuously emits methane into the atmosphere. Satellites are becoming a powerful tool to detect and quantify methane emissions, but there is no evidence of their ability to monitor those from palm oil mill ponds. In this work, we have tested the potential of methane-capable satellite instruments to detect and quantify emissions from these ponds. We have focused on the satellite missions with the highest sensitivity to methane emissions, namely the GHGSat commercial constellation and the PRISMA, EnMAP, and EMIT imaging spectroscopy missions. We have also tested the AVIRIS-NG airborne imaging spectrometer. We report three methane plumes from palm oil mills in Indonesia with GHGSat and two in Colombia with AVIRIS-NG. In the cases of EnMAP, PRISMA and EMIT, we observed substantial methane concentration enhancements over several ponds in Indonesia, Malaysia, and Colombia. It remains unclear whether they are due to retrieval artifacts caused by the particular albedo of the ponds, although the low spatial correlation between those enhancements and the ponds suggests that at least a fraction of the enhancements is caused by real emissions. By leveraging advanced imaging techniques and satellite data, this research contributes to progressing strategies to address new methane emissions sources with high mitigation potential, providing a first step toward the satellite-based monitoring of methane emissions from palm oil mills. Methane ; Palm oil ; Environmental science ; Remote sensing ; Imaging spectrometer ; Methane emissions ; Spectrometer ; Waste management ; Chemistry ; Engineering ; Geology ; Agroforestry ; Physics ; Optics Petroleum Processing and Analysis ; Atmospheric and Environmental Gas Dynamics ; Oil, Gas, and Environmental Issues
Authors: Inês Correia | Claudio Guilherme de Assis Oliveira | Andreia Reis | Ana Rita Guimarães | Susana S. Aveiro | Pedro Domíngues | Ana Rita Bezerra | Rui Vitorino | Gabriela Moura | Manuel A. S. Santos
Source: Molecular & Cellular Proteomics (article, 2024-07-22)
Field: Chemistry — Spectroscopy

A Proteogenomic Pipeline for the Analysis of Protein Biosynthesis Errors in the Human Pathogen Candida albicans Candida albicans is a diploid pathogen known for its ability to live as a commensal fungus in healthy individuals but causing both superficial infections and disseminated candidiasis in immunocompromised patients where it is associated with high morbidity and mortality. Its success in colonizing the human host is attributed to a wide range of virulence traits that modulate interactions between the host and the pathogen, such as optimal growth rate at 37 °C, the ability to switch between yeast and hyphal forms, and a remarkable genomic and phenotypic plasticity. A fascinating aspect of its biology is a prominent heterogeneous proteome that arises from frequent genomic rearrangements, high allelic variation, and high levels of amino acid misincorporations in proteins. This leads to increased morphological and physiological phenotypic diversity of high adaptive potential, but the scope of such protein mistranslation is poorly understood due to technical difficulties in detecting and quantifying amino acid misincorporation events in complex protein samples. We have developed and optimized mass spectrometry and bioinformatics pipelines capable of identifying rare amino acid misincorporation events at the proteome level. We have also analyzed the proteomic profile of an engineered C. albicans strain that exhibits high level of leucine misincorporation at protein CUG sites and employed an in vivo quantitative gain-of-function fluorescence reporter system to validate our LC-MS/MS data. C. albicans misincorporates amino acids above the background level at protein sites of diverse codons, particularly at CUG, confirming our previous data on the quantification of leucine incorporation at single CUG sites of recombinant reporter proteins, but increasing misincorporation of Leucine at these sites does not alter the translational fidelity of the other codons. These findings indicate that the C. albicans statistical proteome exceeds prior estimates, suggesting that its highly plastic phenome may also be modulated by environmental factors due to translational ambiguity. Proteogenomics ; Candida albicans ; Pathogen ; Biosynthesis ; Proteomics ; Computational biology ; Pipeline (software) ; Biology ; Microbiology ; Biochemistry ; Computer science ; Transcriptome ; Enzyme ; Gene Advanced Proteomics Techniques and Applications ; Protein purification and stability ; vaccines and immunoinformatics approaches
Authors: Qingyu Wu | Chenchen Xie | Sannian Song | Xing Ding | Xi Li | Zhitang Song
Source: Electronics (article, 2024-11-15)
Field: Materials Science — Materials Chemistry

Enhanced Readout Reliability in Phase Change Memory with a Dual-Sensing-Margin Offset-Compensated Sense Amplifier Phase change memory (PCM) is considered one of the most promising candidates for next-generation non-volatile memory, owing to its scalability, durability, and cost-effectiveness. However, with the shrinking of device sizes and the reduction in supply voltages, achieving high-speed and reliable readouts in PCM has become increasingly challenging due to process variations. To address this, the dual-sensing-margin offset-compensated sense amplifier (DSOC-SA) is proposed. The DSOC-SA achieves the highest sensing margin, and the lowest read energy consumption compared to traditional sense amplifiers by utilizing a dual-sensing-margin structure, offset compensation, and strong positive feedback. Simulation results demonstrate that, compared to differential sense amplifier and offset-canceling current-sampling sense amplifier, DSOC-SA achieves a 5.6× and 1.6× improvement in sensing speed, respectively, while reducing power consumption by 87.1% and 51.2%. Sense amplifier ; Offset (computer science) ; Sense (electronics) ; Amplifier ; Input offset voltage ; Computer science ; Electronic engineering ; Phase margin ; Phase-change memory ; Scalability ; Process variation ; Differential amplifier ; Current sense amplifier ; Voltage ; Electrical engineering ; Operational amplifier ; CMOS ; Engineering ; Phase change Phase-change materials and chalcogenides ; Advanced Memory and Neural Computing ; Transition Metal Oxide Nanomaterials