Results 51 to 60 of about 4,938 (215)

Materials and Techniques of Selected Mural Paintings on the “Gothic Road” around 1400 (Slovakia)

Heritage, 2021
Mural cycles in the churches of Plešivec, Čhyžné, and Štitnik from around 1400 were studied from the material and technical point of view. Stylistically, they show a mixture of Northern and Southern European stylistic currents, which were characteristic ...
Anabelle Kriznar, Jana Želinská
doaj   +1 more source

Maximal Cuts in Arbitrary Dimension [PDF]

, 2017
We develop a systematic procedure for computing maximal unitarity cuts of multiloop Feynman integrals in arbitrary dimension. Our approach is based on the Baikov representation in which the structure of the cuts is particularly simple. We examine several
Bosma, Jorrit, Sogaard, Mads, Zhang, Yang   +2 more
core   +2 more sources

Resonance Raman Effect in Copper Carbonate Minerals Azurite and Malachite

Journal of Raman Spectroscopy, Volume 56, Issue 11, Page 1154-1161, November 2025.
This study employs Raman spectroscopy to examine the vibrational characteristics of azurite and malachite, specifically focusing on the stretching modes of the carbonate anion present in their structures. The results reveal a potential resonance Raman effect, characterized by an unexpected enhancement of the asymmetric stretching mode compared to the ...
Julliana F. Alves, Linus Pauling F. Peixoto, Luiz Fernando Cappa de Oliveira   +2 more
wiley   +1 more source

Mineralogy and fluid inclusion studies in kalchoye Copper- gold deposit, East of Esfahan

Journal of Economic Geology, 2010
Kalchoye Copper-gold deposit is located about 110 kilometers east of Esfahan province and within the Eocene volcano sedimentary rocks. Sandy tuff and andesite lava are important members of this complex.The form of mineralization in area is vein and ...
Rezvan Mehvari, Reza Shamsipour Dehkordi, Hashem Bagheri, Moussa Noghreyan, Mohammad Ali Mackizadeh   +4 more
doaj   +1 more source

Art historical and scientific controversies about four easel paintings attributed to Kamal al-Molk, the renowned nineteenth-twentieth century Persian painter

Heritage Science, 2023
Pigments on four easel paintings signed by Mohammad Ghaffari (latter Kamal al-Molk), the renowned Persian painter lived from the mid-nineteenth to the mid-twentieth century, kept at the Astan-e Qods-e Razavi Museum (AQRM) in Mashhad, Iran, were ...
Sima Roohi, Parviz Holakooei
doaj   +1 more source

Thermally Optimised Raman Spectroscopy for Safe Analysis of Wall Paintings and Application to Lorenzetti's Masterpiece

Journal of Raman Spectroscopy, Volume 56, Issue 9, Page 882-894, September 2025.
A portable dual‐wavelength Raman system (exc. 785 and 1064 nm) based on a four‐channel innovative probe for safe characterisation of artworks is presented. This instrument enables non‐contact real‐time monitoring of the temperature rise and laser power modulation to prevent overheating during Raman spectroscopy, through direct emissivity and ...
D. Ciofini, J. Agresti, M. Giamello, A. A. Mencaglia, A. Scala, M. Gavazzi, S. Siano, I. Osticioli   +7 more
wiley   +1 more source

Effects of palm biodiesel and blends of biodiesel with organic acids on metals

Heliyon, 2020
This paper presents the corrosion behavior studies of five metallic materials used in auto part manufacturing exposed to pure palm biodiesel (B100) and palm biodiesel mixed with acidic species commonly found in biodiesel.
L.M. Baena, J.A. Calderón
doaj   +1 more source

Facile Synthesis of CuxS Electrocatalysts for CO2 Conversion into Formate and Study of Relations Between Cu and S with the Selectivity

Advanced Functional Materials, Volume 35, Issue 28, July 10, 2025.
Copper sulfide based electrocatalysts for CO2 conversion are selective for production of formate as major product. Transformations under electrochemical conditions result in significant sulfur loss, and this study examines the nature of how persistent, residual sulfur (observed as surface SO42– species and S dissolved in the electrolyte) can sustain ...
Sasho Stojkovikj, Gumaa A. El‐Nagar, Siddharth Gupta, Metodija Najdoski, Violeta Koleva, Theocharis Tzanoudakis, Frederik Firschke, Peter Bogdanoff, Matthew T. Mayer   +8 more
wiley   +1 more source

P-Box: A RISC-V Packed-SIMD Approach of Accelerating Edge Workloads on Scalar Embedded Cores

IEEE Access
The growing need for data-parallel processing in edge devices demands efficient hardware acceleration for Digital Signal Processing (DSP), Computer Vision (CV), and Artificial Intelligence (AI) inference workloads.
Simi Sukumaran, Babu P. S., Neel Gala, Tripti S. Warrier   +3 more
doaj   +1 more source

Sediment-Hosted Copper Mineralization in Bavanat Region, Southern Sanandaj-Sirjan, Iran [PDF]

Journal of Sciences, Islamic Republic of Iran, 2019
Sedimentary Copper mineralization has been observed in Monj and Jolany locations in Bavanat (Sanandaj – Sirjan metamorphic belt). According to current study, the host rocks for copper mineralization in this area are green sandstones, generally in ...
Kamal Noori Khankahdani, Mehrdad Karimi
doaj   +1 more source