jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: Iryan Dwi Handayani | Puri Muliandhi | Wahjoerini Wahjoerini | Andarina Aji Pamurti
Source: Lontar Physics Today (article, 2025-10-17)
Field: Materials Science — Electronic, Optical and Magnetic Materials

Analytical Solution of Transverse Electric and Transverse Magnetic Mode Electromagnetic Wave Equations in Left-Handed Materials Artificial composite materials that focus on electromagnetic waves are known as metamaterials. Metamaterials are artificial materials engineered by human technology, possessing a geometric structure built from microscopic, engineerable materials. The goal is for the new material to be able to direct light, sound, and waves, making it useful. Metamaterials are known as left-handed materials (LHMs), but the concept of metamaterials is broader than LHM. The purpose of this research is to solve the transverse electric (TE) and transverse magnetic (TM) electromagnetic wave equations in left-handed materials (LHMs) using the Nikiforov-Uvarov approach and to analyze the results of the energy spectrum equation from the solution of the transverse electric (TE) and transverse magnetic (TM) electromagnetic wave equations in left-handed medium (LHM). This research was conducted using Matlab software. The material being studied is the positive-negative gradient profile in an LHM medium thru variations in dielectric permittivity and/or magnetic permeability. Energy and wave equations were obtained with their visualization. Metamaterial ; Transverse plane ; Electromagnetic radiation ; Transverse wave ; Transverse mode ; Permittivity ; Wave propagation ; Maxwell's equations ; Electromagnetic field Metamaterials and Metasurfaces Applications ; Electromagnetic Scattering and Analysis ; Electromagnetic wave absorption materials
Authors: Miroslav Milutinović | Aleksandar Okilj | Sanjin Troha
Source:  (article, 2025-01-01)
Field: Materials Science — General Materials Science

DEVELOPMENT OF CONSTRUCTION FOR THE TRANSFER OF HEAVY PRISMATIC PROFILES Determining the load capacity of machine parts used in the transport of heavy profiles is a challenging, but also very responsible task for any engineer. This process requires a detailed analysis of loads, deformations and critical points where local damage or system failure can occur. In modern mechanical practice, the application of the finite element method (FEM) is becoming an indispensable tool due to its precision in predicting the behavior of materials, as well as the ability to quickly and efficiently vary geometry and boundary conditions. FEM enables the simulation of real working conditions of the structure with minimal costs of experimental testing, which gives engineers wider possibilities in optimizing structural solutions. The load-bearing capacity of steel profiles is influenced by a number of parameters, among which the choice of material the method of support and stiffening of elements, geometric shape, as well as the appearance of sources of stress concentration that can lead to the initiation of cracks and reduced reliability. Each of these factors must be carefully considered in the design process to ensure the safety and longevity of the structure. Through this study, the process of variation of the geometry of the developed assembly for the transmission of massive profiles in the production hall is shown. The analysis was carried out taking into account key criteria such as the safety of the structure in operation and the overall reliability of the system. The results obtained indicate the importance of an integrated approach, where theoretical models and numerical simulations are combined with engineering experience in order to optimize the load-bearing capacity and long-term usability of the structure. Finite element method ; Process (computing) ; Stiffening ; Reliability (semiconductor) ; Boundary (topology) ; Boundary value problem ; Key (lock) ; Engineering design process ; Task (project management) ; Stress (linguistics) Material Properties and Applications
Authors: А. А. Иващук
Source: Online library Sukhoi State Technical University of Gome (Sukhoi State Technical University of Gomel) (article, 2025-01-01)
Field: Materials Science — Materials Chemistry

A method for analyzing charge portions to select optimal preheating modes prior to electric melting Представлены результаты исследований, направленных на повышение энергоэффективности электроплавильных печей за счет оптимизации подготовки шихты. Показано, что перспективным направлением является совершенствование управления процессом подогрева шихты с применением экспресс-методов волновой диагностики ее слоя. Предложено использование нейросетевых методов моделирования для прогнозирования влияния различных параметров шихты на эффективность подогрева и, как следствие, на энергоэффективность и качество конечного продукта электроплавки. Описаны этапы анализа шихты, выбор и обучение нейронной сети, а также применение разработанной модели для выбора оптимальных режимов предварительного подогрева. Отмечено, что данный подход обеспечивает создание экономичных и точных систем управления теплофизическими параметрами подготовки материалов перед электроплавкой. Выделено, что реализация предложенных решений способствует снижению энергопотребления при сохранении высокого качества конечного продукта. Charge (physics) ; Work (physics) ; Electric charge ; Temperature measurement ; Control theory (sociology) High voltage insulation and dielectric phenomena ; Power Transformer Diagnostics and Insulation ; Electromagnetic Effects on Materials
Authors: Min Yang
Source: Asian Journal of Arts and Culture (article, 2025-01-19)
Field: Chemistry — Inorganic Chemistry

The Modern Innovation of Yuan Blue-and-White Porcelain: The Cases of Huang Huanyi, Bai Ming, and He Bingqin This study explores the practices and contributions of contemporary ceramic artists Huang Huanyi, Bai Ming, and He Bingqin in the modern innovation of Yuan blue-and-white porcelain. It aims to analyze how these artists have inherited traditional craftsmanship while utilizing technological and artistic innovations to modernize Yuan blue-and-white porcelain and promote its global dissemination. Through an in-depth analysis of their representative works and innovative techniques, supported by data from interviews, exhibitions, and scholarly literature, the study reveals that Huang Huanyi reinterprets traditional aesthetics with unique vessel designs, Bai Ming merges Yuan blue-and-white porcelain with abstract art to create novel artistic forms, and He Bingqin achieves multi-layered innovations in glazing techniques. Collectively, their efforts demonstrate the evolution of Yuan blue-and-white porcelain in modern contexts and its enhanced recognition on a global scale. White (mutation) ; Art ; Chemistry Pigment Synthesis and Properties
Authors: J.M. Siqueira | Gertrudes Macário de Oliveira | Pedro Rogério Giongo | José Henrique da Silva Taveira | Edgo Jackson Pinto Santiago | Mário de Miranda Vilas Boas Ramos Leitão | Lígia Borges Marinho | Wagner Martins dos Santos | Alexandre Maniçoba da Rosa Ferraz Jardim | Thieres George Freire da Silva | Marcos Vinícius da Silva
Source: AgriEngineering (article, 2025-10-10)
Field: Chemistry — Analytical Chemistry

Estimation of Kcb for Irrigated Melon Using NDVI Obtained Through UAV Imaging in the Brazilian Semiarid Region In Northeast Brazil, climatic factors and technology synergistically enhance melon productivity and fruit quality. However, the region requires further research on the efficient use of water resources, particularly in determining the crop coefficient (Kc), which comprises the evaporation coefficient (Ke) and the transpiration coefficient (Kcb). Air temperature affects crop growth and development, altering the spectral response and the Kcb. However, the direct influence of air temperature on Kcb and spectral response remains underemphasized. This study employed unmanned aerial vehicle (UAV) with RGB and Red-Green-NIR sensors imagery to extract biophysical parameters for improved water management in melon cultivation in semiarid northern Bahia. Field experiments were conducted during two distinct periods: warm (October–December 2019) and cool (June–August 2020). The ‘Gladial’ and ‘Cantaloupe’ cultivars exhibited higher Kcb values during the warm season (2.753–3.450 and 3.087–3.856, respectively) and lower during the cool season (0.815–0.993 and 1.118–1.317). NDVI-based estimates of Kcb showed strong correlations with field data (r &gt; 0.80), confirming its predictive potential. The results demonstrate that UAV-derived NDVI enables reliable estimation of melon Kcb across seasons, supporting its application for evapotranspiration modeling and precision irrigation in the Brazilian semiarid context. Crop coefficient ; Evapotranspiration ; Normalized Difference Vegetation Index ; Irrigation scheduling ; Growing season ; Irrigation ; Melon ; Transpiration ; Crop ; Water use Spectroscopy and Chemometric Analyses ; Potato Plant Research ; Smart Agriculture and AI
Authors: Hải Hoàng Thị Minh | Tuấn Tống Anh | Tuấn Trần Anh | Anh Trương Đình Thảo | Việt Trần Bảo
Source: The Transport and Communications Science Journal (article, 2025-12-15)
Field: Materials Science — Materials Chemistry

Xấp xỉ giải tích và mô phỏng số bài toán lan truyền trong vật liệu cấu trúc mặt cong Primitive hai chiều Với sự tiến bộ của công nghệ chế tạo bồi đắp, vật liệu có cấu trúc đặc biệt ngày càng đóng vai trò quan trọng trong nhiều ứng dụng thực tế. Nghiên cứu này tập trung vào mối quan hệ giữa hình học của cấu trúc tuần hoàn mặt cong tối thiểu (TPMS) dạng Primitive hai chiều và các đặc tính truyền dẫn hiệu dụng của vật liệu. Ảnh hưởng của tham số hình học được khảo sát thông qua mối quan hệ với độ rỗng (mật độ), vốn đóng vai trò như một chỉ số đặc trưng quan trọng của cấu trúc. Một bộ mô phỏng số toàn diện được thực hiện bằng phương pháp phần tử hữu hạn, trong đó tỷ lệ thể tích pha cốt thay đổi từ 0 đến 1 và hệ số dẫn có độ tương phản lớn nhằm phản ánh nhiều chế độ truyền dẫn khác nhau. Từ kết quả mô phỏng, hệ số dẫn hiệu dụng được xác định và so sánh với các mô hình giải tích kinh điển dựa trên cơ học vi mô. Kết quả cho thấy các công thức cổ điển vẫn giữ giá trị dự báo, trong đó cận dưới Hashin–Shtrikman (cho trường hợp mật độ pha cốt nhỏ) và xấp xỉ tự tương hợp cổ điển (cho trường hợp mật độ pha cốt lớn) thể hiện độ chính xác tốt so với các mô hình khác khi mô tả khả năng truyền dẫn của cấu trúc Primitive. Nghiên cứu này đóng góp vào việc hiểu sâu hơn mối quan hệ cấu trúc – tính chất trong vật liệu TPMS, đồng thời đề xuất một khung mô hình giải tích – số tin cậy, đơn giản và có tính ứng dụng cao trong thiết kế vật liệu cấu trúc Southeast asia ; Socialist republic ; Central asia ; Viet nam Structural mechanics and materials ; Analytic and geometric function theory ; Geodetic Measurements and Engineering Structures
Authors: Alena Strakh | Alesia V. Vialichka | D. B. Nizheharodava | M. М. Zafranskayа
Source:  (article, 2025-06-27)
Field: Chemistry — Organic Chemistry

Role of Dkk3 protein in regulation of lymphocyte cytotoxicity: systematic review The study of the role of the Dkk 3 protein in the regulation of lymphocyte cytotoxicity is an urgent, little-studied area in science. It is an extremely difficult task for researchers to understand the molecular and genetic aspects of the functioning of this protein, as well as to identify the relationship between Dkk3 and the human immune system. The Dickkopf protein family is diverse and includes five proteins. Dkk3 interacts with the Wnt signaling pathway, which distinguishes this protein from other Dkk members. In addition, Dkk3 has a variety of biological roles (prevents cardiac hypertrophy and promotes stem cell differentiation). This protein can act as a modulator of the immune system. Dkk3 plays an important role in establishing peripheral tolerance of T cells. This paper provides a systematic review of scientific publications in the PubMed database devoted to the study of the role of Dkk3 in the regulation of lymphocyte cytotoxicity, published from 2020 to 2025. During the systematic review, 182 sources were studied, from which 41 articles included in the study were selected during the screening process. The search queries and keywords contained «Dkk3 as an extracellular antagonist of Wnt», «regulatory pathways through Dkk3», «tumor suppressor gene», «oncogene», «relationship of Dkk3 with a subpopulation of lymphocytes», «cytotoxic lymphocytes». A systematic review will expand the field of research on the biological role of Dkk3, in particular on the role of Dkk3 in regulating lymphocyte cytotoxicity, for further study and discovery of new directions on this research topic. Cytotoxicity ; Lymphocyte ; Computational biology ; Lymphocyte activation ; Chemistry ; Immunology ; Biology ; Cell biology ; Biochemistry ; Immune system ; In vitro ; T cell Synthesis and Characterization of Heterocyclic Compounds ; Computational Drug Discovery Methods ; HER2/EGFR in Cancer Research
Authors: Yu. V. Bikaeva | R. A. Ibragimov | L. R. Gimranov | E. V. Korolev
Source: Vestnik MGSU (article, 2025-12-30)
Field: Materials Science — Materials Chemistry

The influence of polypropylene fibre on the physical and mechanical properties of glass-dolomite sheets Introduction. One of the promising areas for the development of construction materials is to use carbonated materials with a low magnesium oxide content as raw materials for the production of binders and the manufacture of materials based on them. The relevance of the application of fibreglass reinforcement is related to the need to significantly increase the physical and mechanical properties of fibreglass dolomite sheets from magnesia binder. The introduction of polypropylene fibres will improve bending performance of composite material, increase in-service crack resistance and reduce shrinkage during hardening. The aim of the study was to select the optimal fibre concentration and determine its influence on the physical and mechanical properties of glass fibre dolomite sheets. Materials and methods. The materials studied are glass dolomite sheets obtained by mixing burned dolomite, water solution of magnesium chloride, additives and fibrous reinforcement. The mechanical activation of the caustic dolomite was produced in a vortex layer device. The structure of the composite and the surface morphology were investigated by electron microscopic analysis. The influence of fibre parameters on the strength of the reinforced sheet was evaluated by a designed calculation model in the Ansys software complex. Results. The results of the dependence of bending strength and specimen density on by concentration, length of polypropylene fibres are presented. The limit values of the stresses when bending, vertical movements of the unreinforced sheet, reinforced by fibres on the non-activated and mechanical activated binder are determined. A plasticity index for comparing the plastic deformations of the material was introduced and the value of fibre adhesion to the matrix was calculated. Conclusions. It was established that the mechanical treatment of magnesium binder in a vortex layer device increases bending and residual strength, increases impact force, and the introduction of fibre prevents brittle fracture of the specimen. Polypropylene ; Dolomite ; Bending ; Shrinkage ; Composite number ; Magnesium ; Glass fiber ; Nylon 6 Magnesium Oxide Properties and Applications ; Innovations in Concrete and Construction Materials ; Structural mechanics and materials
Authors: Kalmova Maria | Olesya Ratmanova | Elena Kulakova
Source: Austrian Journal of Technical and Natural Sciences (article, 2025-01-30)
Field: Materials Science — General Materials Science

Calculation of a thin plate by numerical method in the LIRA CAD software package The method of calculating a thin plate using the LIRA CAD software package is an important aspect of modern engineering analysis. In this study, a thin rectangular plate is considered, and finite element analysis is used, which allows us to study in detail the behavior of materials under the influence of various loa CAD ; Software package ; Software ; Computer Aided Design ; Engineering drawing ; Lira ; Engineering ; Computer science ; Mechanical engineering Material Properties and Applications ; Geodetic Measurements and Engineering Structures ; Mechanical and Thermal Properties Analysis
Authors: Boehm, Florian | Liu, Yan | Yue, Chengliang | Dong, Xianqi | Zhou, Huaxue | Wu, Dong | Wu, E | Yang, Renfu
Source: ArXiv.org (article, 2025-11-04)
Field: Materials Science — Materials Chemistry

Temporal filtered quantum sensing with the nitrogen-vacancy center in diamond Nitrogen vacancy centers in diamond are among the leading solid state quantum platforms, offering exceptional spatial resolution and sensitivity for applications such as magnetic field sensing, thermometry, and bioimaging. However, in high background environments,such as those encountered in in vitro diagnostics, the performance of NV based sensors can be compromised by strong background fluorescence, particularly from substrates such as nitrocellulose. In this work, we analytically and experimentally investigate the use of pulsed laser excitation combined with time gating techniques to suppress background fluorescence and enhance the signal to noise ratio in NV based quantum sensing, with an emphasis on spin enhanced biosensing. Through experimental studies using mixed ensembles of silicon vacancy and NV centers in bulk diamond, as well as fluorescent nanodiamonds on NC substrates, we demonstrate significant improvements in NV spin resonance visibility, demonstrated by an increase of the SNR by up to 4x, and a resulting measurement time reduction by 16x. The presented technique and results here can help significantly increase the readout efficiency and speed in future applications of NV centers in high background environments, such as in IVD, where the NV centers are used as a fluorescent label for biomolecules. Diamond ; Quantum sensor ; Nitrogen-vacancy center ; Excitation ; Spin (aerodynamics) ; Noise (video) ; Sensitivity (control systems) ; Quantum ; Laser Diamond and Carbon-based Materials Research ; Ion-surface interactions and analysis ; Mineralogy and Gemology Studies
Authors: J. Zhang | Zheng Xing Wang | Wanwan Cao | Zhen Jie Qi | Li Jie Wu | Han Qing Yang | Qun Yan Zhou | Si Ran Wang | Huidong Li | Jun Yan Dai | Jiang Luo | Jun Wu | Jianan Zhang | Zhen Zhang | Qiang Cheng
Source: Advanced Electronic Materials (article, 2025-09-15)
Field: Materials Science — Electronic, Optical and Magnetic Materials

A General and Efficient Framework for the Rapid Design of Miniaturized, Wideband, and High‐Bit RIS Abstract High‐performance reconfigurable intelligent surfaces (RISs) are growing in significance for practical applications. However, current design methods typically accommodate one or two properties of RISs, and reliance on time‐consuming and burdensome full‐wave simulations slows down design efficiency. To overcome these limitations, we propose a general and efficient framework for the rapid design of high‐performance RISs. It integrates advanced antenna design techniques and incorporates various load types, quantities, and values to achieve the design of high‐performance RISs. To boost efficiency, the framework leverages a multi‐port network model to quickly obtain the electromagnetic (EM) responses of RIS units with various loads and employs the genetic algorithm for fast optimization of desired units. For validation, we designed a miniaturized, wideband, and high‐bit RIS unit using this framework. It achieves 4‐bit phase modulation, 23% relative bandwidth and a λ /5 size. A RIS prototype with a size of 20×10 was designed, simulated, and measured based on this unit. All results are in good agreement, demonstrating effective beam scanning from ‐50° to 50°. The entire design process takes only 1.2 hours and one full‐wave EM simulation. This framework enables rapid high‐performance RISs design, facilitating their large‐scale applications in communication and radar systems. Bandwidth (computing) ; Radar ; Process (computing) ; Genetic algorithm ; Design process ; Design methods ; Optimal design ; Phase (matter) Metamaterials and Metasurfaces Applications ; Advanced Antenna and Metasurface Technologies ; Advanced Wireless Communication Technologies
Authors: Chandana Pandey | Søren Gjedde Sommer | Thomas Roitsch | Alexander Schulz
Source: Smart Agricultural Technology (article, 2025-05-23)
Field: Chemistry — Analytical Chemistry

Phenotyping-based spectral signatures uncover barley cultivars’ sensitivity to combined mildew and drought treatment The plant’s phenotype changes under biotic and abiotic stress, reflecting its adaptations in gene expression and metabolism. For crop management, rapid detection of plant stress responses is crucial. To facilitate rapid detection of stress responses in crops, we explored the potential of UCPH’s PhenoLab for assessing barley disease resistance under both biotic and abiotic stress. We used this high-throughput macroscopic phenotyping platform to assess barley disease resistance and combined pathogen and abiotic stress response nondestructively by reflectance and fluorescence imaging over time and validate them spectroscopically in leaf extracts. At specific wavelengths, PhenoLab spectral signatures clearly distinguished cultivars with different levels of susceptibility to the obligate biotroph pathogen Blumeria graminis (powdery mildew). Microscope phenotyping at similar reflectance and fluorescence settings parallelled the PhenoLab-derived spectral signatures. However, a specific systemic resistance response emerged three days after inoculation, detectable only by microscopy when targeting infected and non-infected leaf areas. We hypothesized that combined stresses would work additively and used phenotyping to study the response of the resistant and susceptible barley cultivar to a combination of drought with powdery mildew infection. Surprisingly, drought made the resistant cultivar less resistant and the susceptible one less susceptible according to changes in reflectance and fluorescence at defined wavelengths. The spectroscopic absorbance assay confirmed this result biochemically. This proof-of-concept study showcases the potential of holistic functional phenomics, using non-invasive imaging to identify predictive spectral signatures for barley pathogen resistance. Cultivar ; Sensitivity (control systems) ; Mildew ; Biology ; Agronomy ; Botany ; Engineering Spectroscopy and Chemometric Analyses ; Wheat and Barley Genetics and Pathology ; Remote Sensing in Agriculture