bluuebunny/crossref_metadata_2025_split huggingface dataset:
Numerical modelling of large elasto-plastic multi-material deformations on Eulerian grids
Authors: Wang Lujie , Menshov Igor S. , Serezhkin Alexey A. 
Published: June 2024

Abstract
The paper deals with an Eulerian model for heterogeneous multiphase (multi-material) elasto-plastic media based on the diffuse interface method in the one-dimensional uniaxial strain approximation. In this approximation, an equilibrium hypoelastic Wilkins bi-material model is derived. This is carried out on the basis of an analogy between the elasto-plastic Wilkins and hydrodynamic Euler models. For the obtained model, a Godunov-type numerical method is developed based on the approximate Riemann solver HLLC. The results of the proposed Eulerian diffuse interface model are compared with reference solutions on moving grids with explicit tracking interfaces. It is shown that the present diffuse interface numerical model describes with good accuracy strong shock-wave processes in heterogeneous multiphase elasto-plastic media.
Antroponimia polska na Kresach południowo-wschodnich w XIX wieku – źródła i perspektywa badawcza
Authors: MYTNIK Irena 
Published: June 2024

Przedmiotem artykułu jest imiennictwo Polaków na Kresach południowo-wschodnich w XIX wieku, a celem nakreślenie perspektywy badawczej danych zawartych w aktach parafialnych i księgach status ani- marum diecezji łuckiej opublikowanych oraz pozostających w zasobach archiwalnych. Objętość materiału empirycznego to kilkadziesiąt tysięcy jednostek antroponimicznych. Omówienie uwzględnia stan badań, przegląd źródeł rękopiśmiennych i drukowanych, kontekst historyczny, szczegółowe zadania analityczne, dotyczące opisu i interpretacji lingwistycznej, przyjęte rozwiązania metodologiczne oraz znaczenie planowanych badań dla studiów onomastycznych, leksykologicznych, nad dziedzictwem kulturowym, historią Kościoła rzymskokatolickiego i obecnością etnosu polskiego na Ukrainie.Perspektywa badawcza dotyczy studiów historyczno-etymologicznych nazwisk i opracowania monograficznego polskiego systemu antroponimicznego, ze szczególnym uwzględnieniem zasobu imion mężczyzn i kobiet w różnych warstwach społecznych oraz ich charakterystyki morfologicznej, a także formacji poimiennych chłopów, mieszczan i szlachty, ich typologii i struktury słowotwórczej, charakteru odzwierciedlonych w nich interferencji międzyjęzykowych, jak również sposobów nominacji i ich związku z dokumentami źródłowymi. Bazę teoretyczno-metodologiczną stanowić będą założenia onomastyki diachronicznej, socjolingwistyki, lingwokulturologii i językoznawstwa kognitywnego, z uwzględnieniem metod frekwencyjnostatystycznych i porównawczych, a także ujęcia geograficznego.Otrzymane wyniki pokażą obraz antroponimii polskiej diecezji łuckiej w ostatnim etapie kształtowania się systemu nazewniczego, jego związek z antroponimią polsko-wschodniosłowiańskiego pogranicza bliż-szego, ziem etnicznych i specyfikę regionalną uwarunkowaną polsko-ukraińskimi kontaktami międzyetnicznymi, a także zakodowany w nim system wartości.Planowane badania będą uzupełnieniem studiów dotyczących polskiego imiennictwa na Kresach południowo-wschodnich, w szczególności na terenie dawnego województwa wołyńskiego i części zabużańskiej ziemi chełmskiej (starostwo ratneńskie i lubomelskie), które były objęte jurysdykcją diecezji łuckiej, stanowić będą niezbędną podstawę do dalszych prac nad stworzeniem syntetycznego obrazu antroponimii Polaków różnych stanów na całym obszarze dawnej Ukrainy.
A 70 kyr Record of Monsoon-induced Marine Productivity Changes, Terrigenous Flux and Weathering Variations in the Southern Bay of Bengal
Authors: Banerjee Barnita , Raza Waseem , Ahmad Syed Masood , Farnaaz Sadia , Babu EVSSK , Shukla Nihareeka , Mascarenhas-Pereira M.B.L , Mallick Monalisa 
Published: June 2024

Abstract
The southwest (SW) and northeast (NE) monsoon winds significantly affect the oceanographic and climatic changes over the Bay of Bengal (BoB). We present here detailed geochemical and isotopic records from two sediment cores (SK157 14; 5°11′ N: 90°5′ E and SK157-16; 8°46′ N: 90°18′ E), collected from the southern BoB. In this study, we mainly focus on variations in paleoproductivity and terrigenous fluxes introduced into the BoB since last ~70 kyr: We have reconstructed biogenic barium (Babio), calcium carbonate (CaCO3) content, and total organic content (TOC) in both sediment cores to infer paleoproductivity during the period of study. The distributions of productivity proxies in both these cores indicate that the productivity may have been significantly high during MIS 1 and MIS 3 (warmer interglacial periods), when SW monsoon was intensified. The terrigenous proxies (Al%, Ti%, d(0.9)) show that the southern BoB may have received higher terrigenous input during the MIS 2 and MIS 4 (glacial periods) coinciding with the intensification of NE monsoon. The weathering proxy (K/Al), in contrast, shows no significant changes during MIS 2, 3 and 4. However; a significant shift is seen during glacial to Holocene transition.
Provenance of Beach Sands in the Northern Gulf of Guinea, SW Cameroon
Authors: Janpou Annick Kwewouo , Bessa Armel Zacharie Ekoa , Ntouala Roger Firmin Donald , Kelepile Tebogo , Ngueutchoua Gabriel , Armstrong-Altrin John S. 
Published: June 2024

Abstract
Petrographical, mineralogical and geochemical studies were carried out on the beach sands of Limbe (South-West Cameroon) to highlight their provenance, source rocks alteration and the tectonic framework. The Limbe beach sediments were classified as sandy litharenite type. The sediments were derived from mafic and andesite source rocks. The sediments are composed of quartz, olivine, augite, amphibole, pyroxene, plagioclase, potassium feldspar, muscovite and biotite, indicating the primary phases of magmatic source rocks; kaolinite and illite in the secondary phase; and rutile in their residual composition. The presence of ferromagnesian minerals indicates that they were derived from the mafic rocks, which are the basalts of the Cameroon Volcanic Line (CVL). However, the presence of quartz associated with plagioclase and feldspars suggests that alkaline granites played a minor role in the sedimentation of the Limbe beaches. Total Quartz - Total Feldspar - Total Lithic Fragments (Qt-Ft-Lt) mineralogical relationships demonstrate that these beach sediments would be formed in an undissected arc tectonic context, typical of volcanic sources with high relief producing black sands or sands enriched in iron oxides. Their microscopic characteristics of angular to subangular shapes suggest that the magmatic sources are proximal to the shoreline deposits. The characteristics of microporosity, iron oxide inclusions, conchoidal fracture, heavy mineral grains, and opaque minerals support this proximal source. The conchoidal fractures defining the angularity of these beach sediments would suggest its derivation from crystalline rocks. The predominance of heavy minerals suggests that the rocks proximal to the beach have been altered. The abundance of primary minerals associated with these secondary heavy minerals justifies the existence of unweathered lithic grains in the source rocks and an alteration that occurred under a tropical monsoon climate that ranged from semi-humid to humid. The use of the multi-element tectonic discrimination diagram implies an arc framework that is compatible with the geology of the study area.
Construct a Geomechanical Model to Estimate the Critical Drawdown Pressure for the Sandstone Reservoirs
Authors: Issa Mustafa Adil , Issa Muntadher Adil , Abdulkareem Ali Nooruldeen , Al-Zuobaidi Ali A. , Hadi Farqad Ali 
Published: June 2024

Abstract
The petroleum industry is becoming more concerned about sand production because of the mounting difficulties it causes, along with the accompanying technological and operational obstacles. In this study, a field case in the south of Iraq was carried out to analyze the potential of sanding and rock collapse. This investigation has focused on the upper and lower sand layers, which are sandstone reservoirs within this field. To achieve the purpose of this study, a One-Dimensional Geomechanical Model was established along the area of interest. The critical drawdown pressure (CDDP) at which the well may be produced without experiencing shear failure or sanding was then determined at various depletion rates. The results indicated that as the rocks strength increases, so does depletion and the quantity of sand-free drawdown. Because the upper sand unit has a higher critical bottom-hole flowing pressure (Pcw), it is possible that it will begin producing sand before the lower unit. Sanding becomes more likely with each drawdown when the reservoir pressure reaches approximately 2400 psi. Finally, this research may be used as a predictor of the likelihood of sanding over the well’s productive life and as a guide for production engineers seeking to achieve optimal completion performance.
Remote Sensing-based Morphometry on the Petroliferous Cambay Rift Basin (Gujarat, Western India)
Authors: Surabhi K , Biswas Mery , Mukherjee Soumyajit 
Published: June 2024

Abstract
The Cambay Rift Basin (CRB) is a product of rifting in western India that formed during India’s drift following the breakup of Gondwanaland during the Early Jurassic and Tertiary Periods. Being petroliferous, the basin has attained paramount attention. Seismicity in CRB proves its present-day tectonic sensitivity. Several NNW-SSE, NW-SE and NE-SW trending faults regulate the channel morphology within a portion of the basin. Drainage network systems are proxies of active faulting. Geomorphic indices e.g., long profile analysis, basin-scale parameters, stream length gradient index and sinuosity index along the main channels in the five watersheds have been evaluated in this work. The Index of Active Tectonics (IAT) is derived from the basin-scale parameters and is clubbed into three classes: class 1 (IAT = 1.4 - 1.9), class 2 (IAT = 1.91 - 2.4) and class 3 (IAT = 2.41 - 2.9). IAT Class 1 indicates a higher present-day tectonic activity than the other watersheds such as 1, 2 and 5. Watersheds in the northern and eastern Cambay region (watersheds 3 and 4, and portions of 1 and 5) exhibit higher tectonic activity. Slope breaks and low sinuosity index near the crossing-points in these northern and eastern portions indicate active / weak zones. Along these zones, channels incise vertically and more efficiently than laterally in watersheds 3 and 4. These weak zones may indicate older structures such as lineaments and faults. The Ahmedabad-Mehsana block in watershed 3 and partly in watershed 1 within the CRB with several oil fields are tectonically highly active. Therefore, well-bore stability studies need to be carried out in this block.
Demineralization of Coal from Johilla Coalfield using Neutrophilic Native Bacteria: A Novel Technique to obtain REE from Coal
Authors: Rai Shweta , Lata Singh Asha , Singh Prakash K. 
Published: June 2024

Abstract
Mineral matter in coal is the host of several environmentally sensitive elements and a potential source of Rare Earth Elements (REE). During combustion, some trace elements are liberated as gas, while others get concentrated in ash, contaminating soil and local water bodies. Minimizing the inorganic content makes the coal clean and eventually increases its calorific value. Bacteria serve as an eco-friendly remediation tool, particularly neutrophilic ones that facilitate the treatment at mild pH and ambient temperatures. Use of native bacteria accelerates the treatment process by readily adapting to substrates. We present the remediation potential of three native neutrophilic bacteria in this study. After six days of treatment, Bacillus sp. CpH06 has reduced ash yield by 15.96%, trace elements by 26% to 75%, and REE by 24% to 50%. Bacillus anthracis CpH08 has reduced ash yield by 22.6%, trace elements by 6.4% to 70.5%, and REE by 8.4% to 37%. Maximum ash yield reduction of 22.91% was attained by the Cronobacter sp. CpH10 including reduction of 8.1% to 73% of trace elements and 26% to 48% of REEs. The FTIR spectra reveal alterations in both peak intensity and position of inorganic functional groups resulting from the removal of elements, formation of new bonds, and the elimination of certain pre-existing functional groups. XRD spectra indicate bio-oxidation mechanism, exhibited by the removal of copper sulfate hydroxide and pyrite along with formation of Jarosite and metal-sulfide peaks. The findings encourage further research on the effectiveness and performance of these bacteria on diverse types of coals.
Application of X-Ray Diffraction Method for Characterization of Crystalline Basalt Samples
Authors: Abdelgadir M. , Yagob Arafa A. , Elzain Abd Elmoniem A. , Idris Maha A. , Yagoob Solima I. 
Published: June 2024

Abstract
X-ray powder diffraction technique is used in this work to investigate the contents and the crystal structure of basalt gneiss, which are prepared by mechanical milling to get homogeneous powder. The experimental x-ray pattern of the sample was smoothed and then analyzed by using a standard pattern. The results are reported for quartz (hexagonal), biotite (monoclinic system), and anorthite (triclinic) the parameters of the crystal systems are found to be aQuartz = bQuartz = 4.916, cQuartz = 5.4090 and αQuartz =βQuartz = 90°, γQuartz = 120° for quartz, aBiotite = 5.3520 bBiotite = 9.2660, cBiotite = 10.3130 and with αBiotite = γBiotite = 90°, βBiotite = 100.2240° for biotite, and aAnorthite = 7.5980, bAnorthite = 7.6250, cAnorthite = 12.8788 with αAnorthite = 91.3470° , βAnorthite = 97.7100° and γ Anorthite = 115.0300° for anorthite. While the volume of unit cells are found to be (VUnit cell)Quartz = 113.21 × 106Pm3, (VUnitCell)Biotite = 503.32 × 106Pm3, (VUnit cell)Anorthite = 667.26 × 106Pm3, for quartz, biotite and anorthite. The numbers of unit cell and the atomic densities are recorded as (na.u.c)Quartz = 3.00, (ρCal)Quartz = 2.64 g/cm3, for quartz, (na.u.c)Biotite = 1.00, (ρCal)Biotite = 3.03 g/cm3, for biotite and (na.u.c)Anorthite = 8.00, (ρCal)Quartz = 2.70 g/cm3, for anorthite. From the results of this work, basalt is found to be mixture of the molecules with percentages of 17.7% for quartz, 18.6% for biotite and 63.7% for anorthite. The results were compared with the standard results for the same molecules.
Landslide Inventorization and Susceptibility Mapping in the SemiArid Kargil-Ladakh Region of Northwestern Himalaya
Authors: Akbar Mohmad , Shafi Bhat M. , Khan Amir Ali , Chanda Arunima , Parrey Hilal Ahmad 
Published: June 2024

ABSTRACT
Landslides often result in damage to property and loss of life in the Himalayan Region because of high seismicity and rugged terrain. To address this issue, the current study focused on developing a landslide inventory based susceptibility map for Kargil-Ladakh Region of North-Western Himalaya. The landslide susceptibility map for the region was generated with the help of Frequency Ratio (FR) Method, landslide inventory layer and eleven influencing factors such as; elevation, geomorphology, aspect, slope, plan curvature, lithology, rainfall, profile curvature, distance from road and lineaments, temperature, and land cover. The results reveal that approximately (50%) of the study-area lies under moderate to very high susceptibility zones. The low and very low susceptibility zones cover the remaining (50%) of the study-area. The findings highlight that several factors significantly contribute to landslide occurrences in the region, namely slope, road network, elevation, rainfall, and land cover. The northern part of the study area is particularly susceptible to landslides due to the presence of the national highway, a high concentration of settlements, and increased infrastructure development. Furthermore, areas surrounding local highways and community road networks show moderate landslide susceptibility. The results were validated with the help of the Receiver Operating Characteristic (ROC) curve, yielding a value of (82%) which is well within the acceptable limit. The results underscore the importance of developing site-specific landslide mitigation strategies to safeguard vulnerable communities in this strategically significant border region of India.
Bayesian Network Inference for Low-Magnitude Nonnatural Seismic Event Discrimination
Authors: Li Xueyan , Hou Xiaolin , Bian Yinju , Wang Tingting , Ren Mengyi , Zhang Yixiao , Wang Wenjing 
Published: June 2024

Abstract
In response to the gaps in understanding the causal relationship between seismic waveform features and the types of seismic events, this research is focused on seismic events of low magnitude (ML≤3.0) in the North China region. Using the Bayesian network theory, we conduct an analysis to infer event types for natural earthquakes, artificial explosions, and mining collapses, and the outcomes achieved notable efficacy for the discrimination of seismic events. Through the analysis of seismic waveforms from 1818 events, we systematically extracted and quantified 55 features in temporal, spectral, and energy domains, which were then recoded as node variables for subsequent analysis. The new data set was subject to select nodes with strong associations to the node type. Subsequently, Bayesian network topologies were constructed using three different algorithms to reconstruct the custom network, calculating posterior probabilities and marginal probabilities. Simultaneously, an extensive evaluation with precision–recall curves of the network structure was carried out, encompassing accuracy, precision, recall, and F1-score. Ultimately, sensitivity analysis was performed on each node to reveal the extent of the influence of node variations on the inference of the node type. The findings showed that the sensitivity of discrimination of seismic events was notably high for several features, including high-frequency P/S spectral ratio values (11 to ∼20 Hz), central frequency, dominant frequency, average frequency, rise and decay average frequency, the real part of the complex cepstral coefficients, peak ground acceleration, and zero crossing. In the classification of natural earthquakes, artificial explosions, and mining collapses, it was observed that the probability of mining collapses was maximized when peak ground acceleration was less than 1526.08, and concurrently, the P/S spectral ratio (11 to ∼20 Hz) fell within the range of −0.25 to −0.02.
Seismogenic Fault Model for the 2021 Ms 6.4 Yangbi, China, Earthquake, Constraints from Multisource Data
Authors: Wu Lianwen , Li Zhigang , Sun Chuang , Dai Xiangming , Wu Xiancan , Zeng Fanchang , Lv Liangwei , Long Weiwang , Su Zhiyi 
Published: June 2024

Abstract
Deciphering a comprehensive 3D fault model for the regions with moderate-to-strong earthquakes is crucial for understanding earthquake triggering mechanisms and assessing future seismic hazards. On 21 May 2021, a massive Ms 6.4 earthquake occurred in Yangbi, Dali City, China, near the northern Red River fault zone. Despite numerous studies conducted over the past two years, the seismogenic fault of this earthquake remains a topic of controversy. In this article, we refine the workflow for 3D construction of fault surfaces from Riesner et al. (2017) and used it for the Yangbi earthquake. We constructed a seismogenic fault model for the Yangbi earthquake and Caoping fault from the collected multisource data. One utilizes a combination of focal mechanisms and relocated hypocenters, whereas the other combines geological and geophysical data from the study area. Upon analyzing these two fault models and the relocated hypocenter data, we propose that the seismogenic fault in the Yangbi earthquake is an undiscovered blind fault or a secondary blind fault of the Weixi–Qiaohou fault, rather than the surface-emerging Caoping fault.
O Adolescente e o Ato Infracional: algumas reflexões
Authors: Da Silva Rogério Araújo 
Published: June 2024

Resumo: o envolvimento de adolescentes em atos infracionais, assim como o desenvolvimento de um trabalho socioeducativo assume, no Brasil, um percurso histÃ³rico, ajustando-se Ã s mudanÃ§as necessÃ¡rias advindas da organizaÃ§Ã£o social que refletem os ajustes, embates e contradiÃ§Ãµes inerentes Ã s mudanÃ§as socais e a legislaÃ§Ã£o vigente. As reflexÃµes aqui expostas partem das formulaÃ§Ãµes iniciais elaboradas pelo projeto de pesquisa - â??Adolescentes em conflito com a lei: compreendendo as causas do ato infracionalâ?, a ser desenvolvido pelo Instituto Dom Fernando - IDF/PUC/GO. A pesquisa pretende compreender as possÃ­veis causas que levariam os adolescentes ao cometimento do ato infracional. .
Palavras-chave: Adolescentes. Ato infracional. SocioeducaÃ§Ã£o.
A comparative study on the effect of intrathecal nalbuphine and buprenorphine as an adjuvant to 0.5% hyperbaric bupivacaine in elective infraumbilical surgeries
Authors: Arunkumar R , Nimi G  , Sandhya K 
Published: June 2024

: Subarachnoid blockade provides excellent operating conditions for lower abdominal, orthopedic, pelvic, urological, gynecological and lower extremity surgery. Most subarachnoid anesthetics are single shot injections and have a definite duration; hence opioids have been used along with local anesthetics in subarachnoid block to prolong its effect, duration, quality of analgesia and minimize the necessity of postoperative analgesics.: The primary objective of the study was to assess the onset and duration of sensory and motor blockade. The secondary objective of the study was to compare the hemodynamics, duration of postoperative analgesia and the complications encountered between the two groups.: A prospective randomized double-blinded study was done in 120 patients divided into two group with 60 in each group as group N and group B by computer generated random numbers. Group N received 0.5% Heavy Bupivacaine (3.2ml) + 0.6mg of Nalbuphine (0.3ml) to a total volume of 3.5 ml and Group B received 0.5% Heavy Bupivacaine (3.2ml) + 90µg of Buprenorphine (0.3 ml) to a total volume of 3.5 ml for spinal anesthesia. The differences between the groups were statistically analyzed with the Independent t test for continuous variables and Pearson’s chi-square test for categorical variables. Observations and results: The onset of sensory block (p=0.303) and motor block (p=0.510) was observed to be faster in group N when compared to group B with statistical insignificance, but the duration of both sensory block (p˂0.001) and motor block (p˂0.001) was more pronounced in group B when compared to group N with statistical significance. The duration of effective analgesia was more pronounced in group B (468.35±30.57 minutes) compared to group N (362.70±35.53 minutes).: The duration of the sensory and motor block with effective postoperative analgesia were more pronounced in buprenorphine compared to nalbuphine and hence intrathecal buprenorphine is a better alternative adjuvant to intrathecal nalbuphine in elective infraumbilical surgeries.