bluuebunny/crossref_metadata_2025_split huggingface dataset:
НОВАЯ энерго- и ресурсосберегающая технология производства высокопрочных КАНАТОВ
Authors: Парусов Э.В. , Сагура Л.В. 
Published: November 2024

Для повышения энерго- и ресурсосбережения в условиях ОАО «Молдавский металлургический завод» была разработана новая технология производства высокоуглеродистой катанки, не содержащей добавок хрома и/или ванадия и не требующей патентирования на метизном переделе. С использованием специально разработанной технологии были выпущены опытно-промышленные партии катанки диаметрами 8,0; 10,0 и 11,0 мм из стали марки 85-1 (ТУ У 27.1-4-519-2002). Для данной катанки, произведенной по разработанной технологии, могут быть получены такие же структура (дисперсность перлита) (рис. 1) и механические свойства проволоки (табл. 1), как и для катанки стали С82D2, микролегированной ванадием.Из-за малой глубины обезуглероженного слоя (≤ 0,5 %) произведенная по новой технологии катанка более чувствительна к образованию мартенсита деформации на поверхности при хранении и транспортировке, что требует соблюдения мер предосторожности, предусмотренных DIN EN ISO 16120-1:2011.Переработка на Харцызском филиале ЧАО «ПО «Стальканат-Силур» завод «Силур» катанки прямым волочением (без предварительного патентирования) показала удовлетворительную технологичность и соответствие временного сопротивления проволоки нормам технологической инструкции ТИ 285-МТ-ПР-109-2010. Стабилизированные высокопрочные арматурные канаты диаметром 9,3; 12,5 и 15,2 мм из катанки стали 85-1, которую изготавливали по новой технологии, соответствуют требованиям EN 10138-3:2005.Механические свойства высокопрочных стабилизированных арматурных канатов представлены в табл. 2.Таблица 2 – Механические свойства арматурных канатов из стали марки 85-1Диаметр катанки, мм Диаметр каната,мм Группа прочности, Н/мм2 Разрывное усилиеFm, кН Временное сопротивление,Н/мм2 Усилие при условном пределе текучестиFp0,1, кН Полное относительное удлинение перед разрывом,%8 9,3 1860 102,1-102,9102,6 1968-19791972 87,4-89,488,6 5,3-7,16,210 12,5 1860 178,7-181,6180,4 1922-19531940 150,5-160,5153,7 6,3-7,16,711 15,2 1770 254,2-257,5256,6 1829-1852,61845,8 211,8-215,8214,4 6,1-6,76,5Примечание к табл. 2: В числителе представлены минимальное и максимальное значения, в знаменателе – средние
МОРФОЛОГІЯ ВКЛЮЧЕНЬ ГРАФІТУ ПРИ ПЕРЕПЛАВІ ЧАВУНУ З КУЛЯСТИМ ГРАФІТОМ
Authors: Чайковський О.А. , Олійник С.Г. 
Published: November 2024

Найбільш поширеним у світовій практиці способом отримання високоміцного чавуну є магнієвий процес, заснований на введенні в розплав металевого магнію, магнієвих лігатур і комплексних модифікаторів, що містять магній.Але в літературі відсутні дані про процес десфероїдизації графіту при повторному переплавленні чавуну з кулястим графітом.У зв’язку з цим метою даної роботибуло розроблено методику вивчення кінетики переходу графітових включень від кулястої до пластинчастої форми при повторному переплавлені чавуну з кулястим графітом.В ході проведення експерименту було використано 3 зразки які нагрівали до температури 1120…1170 C та витримувалися на протязі 30, 45 та 120 секунд. Металографічний аналіз зразків показав, що всі зразки мають характерні зони незалежно від часу витримки;- зону вихідного чавуну (частина зразка, яка не перегрівалась вище температури плавлення);- перехідну зону, що знаходилася на межі температур плавлення і температур твердої фази;- зону з пластинчастим графітом (частина зразка, що примусово проплавляли на протязі певного часу).Для визначення ширини перехідної зони було зроблено виміри з 5 полів зору для кожного зразка. За результатами вимірів було встановлено (табл. 3.1) Таблиця 3.1 – Характеристика перехідної зониЧас витримки,с Ширина перехідної зони, мм Поля зору Середнє, мм 1 2 3 4 5 30 1,0 0,9 0,9 1,0 1,0 0,9645 1,1 1,0 1,1 1,1 1,1 1,08120 2,3 2,2 2,4 2,2 2,1 2,25За результати металографічного дослідження був встановлений ступінь сфероїдизації графіту та середню кількість графітових включень (табл. 3.2).Таблиця 3.2 – Результати металографічного дослідженняЧас плавлення зразка, сек Середня ширина перехідної зони, мм Ступінь сфероїдизації графіту, % Середня кількість графітових включень, %Вихідний чавун – 95…98 12,330 0,96 75…77 11.745 1,08 55…60 10,1120 2,25 50…55 12,2За результатами роботи зроблені наступні висновки:Всі зразки мають три основні зони: зону з кулястим графітом, перехідну зону та зону з пластинчастим графітом.При постійній температурі витримки ширина перехідної зони зі зменшенням часу від 120 с до 30 с зменшується від 2,25 мм до 0,96 мм відповідно.Розмір графітових включень в перехідній зоні при збільшенні часу від 30с до 120 с зменшується від 24мкм до 18мкм.Якщо розглядати процеси, що відбуваються при різних тривалостях витримки як складові одного процесу, то можна припустити наступний механізм кінетики зміни форми графіту: у зоні, що знаходилась між тією частиною зразка, що розплавлялась і тією, що примусово охолоджувалась, відбувся розпад кулястого графу з утворенням пластинчатого за рахунок випаровування залишкового магнію з чавуну при температурі 1150 °C.
Design, Synthesis and Tribological Properties of Fatty Acid Diethanolamide Borate Esters with Different Carbon Chain Lengths
Authors: Yang Xi , Yang Guangbin , Zhang Shengmao , Zhang Yujuan , Fan Shuguang , Jiang Zhengquan , Yu Laigui , Zhang Pingyu 
Published: November 2024

Abstract

With the increasing attention to environmental issues and the improvement of environmental regulations, traditional lubricant additives are facing huge challenges, while biodegradable green lubricant additives are facing new opportunities. Organic borate esters, as lubricating additives, have core competitiveness over traditional lubricating additives containing S, P, and Cl. Borate esters not only overcome the poor corrosion resistance of traditional additives, but also have excellent load-bearing capacity and extreme pressure performance. In addition, introducing fatty acid diethanolamide containing active groups such as hydroxyl and amide bonds into borate esters enhances the adsorption capacity. In this article, three borate esters with different carbon chain length were prepared, namely stearic acid diethanolamide borate ester (C18ONB) with a chain length of 18, tetradecanoic acid diethanolamide borate ester (C14ONB) with a chain length of 14, and octanoic acid diethanolamide borate ester (C8ONB) with a chain length of 8. The as-prepared borate ester, especially C18ONB, exhibits excellent tribological properties as lubricant additives in poly (a-olefin) (PAO6), significantly improving the friction reducing and antiwear properties of the base oil. This is due to the weak polarity of C18ONB with long carbon chains, which exhibits good solubility in PAO6 with weaker polarity and forms thick multilayer viscoelastic adsorption film on the friction surface. In addition, the adsorption film undergoes tribochemical reactions during the rubbing process, generating a tribofilm containing excellent lubricants such as B2O3 and BN, which further plays a good role in reducing friction and antiwear.
Modeling the genetic architecture of complex traits via stratified high-definition likelihood
Authors: Shen Xia , Lan Ao 
Published: November 2024

Abstract

The distribution of heritability across the genome describes how the underlying genetic architecture of complex traits is shaped. Using genome-wide summary association statistics, state-of-the-art techniques analyze the heritability distribution by stratifying the genome based on functional annotations. We present the stratified high-definition likelihood (sHDL) method, an advanced statistical model that integrates genomic functional annotation to infer complex trait genetic architecture, providing a unified model for both binary and continuous genome annotations. Compared to stratified linkage disequilibrium score regression (sLDSC) and SumHer, sHDL offers substantially higher estimation accuracy for heritability enrichment parameters with reduced bias. In the application to 17 cancer GWAS and 23 cancer cell chromatin accessibility annotations, sHDL discovered better matching between the genetic landscape of cancer risk and the epigenetic profiles specific to cancers. Incorporating fetal gene expressions specific to 177 human cell types, sHDL identified top fetal cell types for common diseases, such as heart and muscle cells for coronary heart disease and pulse rate, digestive system cells for type 2 diabetes, and stromal and brain cells for depression. sHDL advances our understanding of polygenic contributions to complex traits, providing a robust and versatile approach for complex trait genetic analysis.
Business Intelligence in Organizational Decision-Making: A Bibliometric Analysis of Research Trends and Gaps (2014-2024)
Authors: Mekimah SABRI , Zighed Rahma , Bengana Ismail , MILI khaled 
Published: November 2024

Abstract

This study examines the evolving landscape of Business Intelligence (BI) research and its impact on organizational decision-making through a comprehensive bibliometric analysis. Analyzing 2,442 BI-related articles from the Scopus database published between 2014 and 2024, we identified key trends, influential authors, leading institutions, and significant research gaps. Despite substantial literature, our findings reveal a declining trend in BI publications and significant under-exploration in integrating BI with competitive intelligence, decision-making processes, data mining, and human resources management. The study highlights geographical disparities in research output, with the United States and China leading in publications and citations. Our analysis underscores the need for more interdisciplinary research approaches and increased collaboration among researchers and institutions to address these gaps. This study provides valuable insights for researchers and practitioners, offering direction for future research to enhance the application of BI in organizational decision-making and strategic development.
Climate change related lessons learned from a long-term field experiment with maize
Authors: Pokovai Klára , Piepho Hans-Peter , Hartung Jens , Árendás Tamás , Bónis Péter , Sugár Eszter , Hollós Roland , Fodor Nándor 
Published: November 2024

Abstract

Maize is the second most important cereal crop in European agriculture and a widely used raw material for feed, food and energy production. Climate change studies over Europe project a significant negative change in maize production. Finding appropriate and feasible adaptation strategies is a top priority for agriculture in the 21st century. Long-term agricultural experiments (LTE) provide a useful resource for evaluating biological, biogeochemical, and environmental aspects of agricultural sustainability and for predicting future global changes. The objective of the study was to analyze a 30-year period of a multi-factorial (Variety × Fertilization × Planting date) LTE at Martonvásár (Hungary) searching for traces of climate change as well as for favorable combinations of agro-management factors that can be used as adaptation options in the future. According to the results: (1) intensification of fertilization would not promote sustainable development in the region; (2) late hybrids (FAO number > 400) have no perspective in the Pannonian climatic zone and (3) Earlier planting (first decade of April or even earlier) may become an effective adaptation option in the future. Our comprehensive methodology combines long-term historical weather and climate projection data with statistical and simulation models for the first time to provide agricultural stakeholders with more reliable adaptation strategies than ever before.
Dual roles of ARID1A in both mucin production and secretion suggest susceptibilities of gastric signet ring cell carcinoma
Authors: Chen Chong , Liu Hongyu , Zhong Ailing , Lu Zhenghao , Li Jiaxin , Zhang Mengsha , Wang Yingjie , Gao Limin , Pan Xiangyu , Chen Xuelan , Chen Jingyao , Zhang Lanxin , He Siyu , Wang Xinyuan , Wan Xudong , Deng Xintong , Peng Tingfa , Wang Jian , Du Jiajia , Yang Kun , Liu Kai , Chen Xin-Zu , Chen Xiaolong , Feng Zhe , Wu Baohong , Zhao Linyong , Zhang Weihan , Yang Shengyong , Wang Yuan , Chen Lu , Zhao Chengjian , Xue Zhihong , Dai Lunzhi , Na Feifei , Hu Jiankun , Liu Yu 
Published: November 2024

Abstract

Signet ring cell carcinoma (SRCC) is a lethal malignancy with unique histologic features, characterized with large vacuoles and compressed nuclei. Gastric SRCC is the most common SRCC, and its incidence is increasing recently. However, the driver genes of SRCC and the molecular mechanisms underlying its unusual histology remain unclear. Here, we developed a new type of gastric SRCC mouse models with gene-edited premalignant gastric organoids and validated ARID1A, one of the most frequently mutated genes in SRCC, as a bona fide tumor suppressor gene of gastric SRCC. Mechanistically, through CUT/Tag and ATAC-seq analyses, we found that Arid1a directly regulated the expressions of secretory factors Scin and on the other hand, Arid1a loss reprogrammed the genome binding of the SWI/SNF complexes and increased the expressions of mucin genes through the binding of Brd9, a component of the noncanonical SWI/SNF complex. Inhibiting Brd9 reversed the pathology of Arid1a mutant SRCC. Thus, our studies revealed dual roles of ARID1A in restraining SRCC through both mucin production and secretion. These findings offer new insights into the susceptibilities of ARID1A deficient SRCC.
Quality not quantity: seedlings of the invasive hybrid cattail Typha x glauca outcompete the more abundant seedlings of their maternal parent T. angustifolia
Authors: Freeland Joanna , Kowalcyk Olivia , Brennan Margaret , Dorken Marcel 
Published: November 2024

Abstract

Numerous invasive plant taxa are hybrids that outcompete their parent species, thus exhibiting heterosis. Invasive hybrids can also have an advantage if the genotypes of one or both parent species are replaced by hybrid genotypes (genetic swamping), which can remove or reduce the parental competitors. A vast cattail hybrid zone in North America comprises T. latifolia, T. angustifolia, and their hybrid T. x glauca. Genetic swamping may be reducing the abundance of the maternal parent, T. angustifolia across the hybrid zone, although competition could also be important for hybrid success. We tested two non-mutually exclusive hypotheses: 1) Genetic swamping means that T. angustifolia is producing a high proportion of hybrid offspring, and 2) T. × glauca seedlings outcompete T. angustifolia seedlings. We collected fruit from 14 maternal T. angustifolia plants across 12 sites in Ontario, Canada, and grew seedlings from each plant both singly (without competition) and in groups (with competition). We used genetic data to assign a subset of seedlings to taxon and found that most seedlings (78%) were T. angustifolia, which does not support our hypothesis of genetic swamping. However, a significantly higher proportion of seedlings were hybrids in the competitive (29%) versus the non-competitive (14%) environment, which supports our hypothesis that T. x glauca seedlings outcompete T. angustifolia seedlings. Typha hybrids dominate wetlands across a substantial area in North America, and our data suggest that strong competitive ability is more important than genetic swamping for the establishment of these successful invaders.
Mechanically Interlocked Nanotubes as Recyclable Catalysts for Knoevenagel Condensation
Authors: Perez Emilio , Vera-Hidalgo Mariano , Blanco Matías , Navío Cristina , Ruiz-González Luisa , López-Moreno Alejandro 
Published: November 2024

Abstract

Single-walled carbon nanotubes (SWNTs) are a very attractive platform to build heterogeneous catalysts, benefiting from their intrinsic high surface area and their insolubility. Here, we show that SWNTs encapsulated within organic macrocycles to form mechanically interlocked rotaxane-type species (MINTs), are a good building block to graft basic nitrogenous moieties for the catalysis of the Knoevenagel condensation. The installation of the catalytically active groups is carried out after formation of the MINTs, following a modular approach. Through this chemical modification strategy, we obtain very active MINT catalysts (TOF in the range of 900–9000 h− 1). The interlocked catalysts can be recycled for at least five times by simple filtration and washing, without any appreciable loss of activity. In comparison, supramolecular controls lacking the mechanical link between the active moiety and the SWNT cannot be recycled. From a general point of view, these results prove that formation of MINTs is an interesting strategy to link catalytic molecular moieties to SWNTs, enabling their use as heterogeneous catalysts and therefore facilitating the purification of the products and the recycling of the catalyst.
Credit Card Fraud Detection Using NeuroStack Network and Risk-Based Personalized recommendation with CreditRecHub
Authors: AlEnizi Abdullah 
Published: November 2024

Abstract

The industrial sector suffers annual losses of billions of euros due to Credit card fraud, which has increased with the growth of online communication channels. Cybercriminals are continuously coming up with new ways to use the network for illegal activities. Credit risk prediction methods frequently encounter issues including inconsistent data distribution and challenging data preprocessing. High-precision models are often accompanied by low model efficiency. This study presents a comprehensive framework for credit card fraud detection and personalized recommendation systems. A novel NeuroStack Network is proposed with the assistance acquired from deep learning for credit card fraud detection (CCFD). This model encapsulates the autoencoder, LSTM with attention, and an ensemble of XGBoost and SVM. In terms of risk assessment, we propose a Risk Scoring Model utilizing a Random Forest algorithm combined with Dynamic Risk Adjustment through Recurrent Neural Networks (RNNs) integrated with a Scaled Dot-Product Attention Mechanism, allowing for adaptive and responsive fraud detection capabilities.The Personalized Recommendation system referred as CreditRecHub is designed by using the adaptive recommendation engine and risk-based recommendation system. The Behavioral Profiling process is optimized using the Hybrid Grey Whale Optimization Algorithm (HGWOA) to enhance the accuracy of user behavior analysis. The accuracy recorded of two datasets such as 0.98843 and 0.99976 provided an accurate result of the intrusion detection.
SDF-1 alleviates osteoarthritis by resolving mitochondrial dysfunction through the activation of the Sirt3/PGC-1α signalling pathway
Authors: Zhao Yanping , Lin Dan , Zhu Xiaoying , Yan Jingyao , Liang Yan , Wang Yanli , Dai Tianqi , Zhang Zhiyi , Wang Shuya 
Published: November 2024

Abstract

Objective
Osteoarthritis (OA) is the most common form of joint disease. Currently, OA treatment is limited to controlling symptoms. Our previous study showed that stromal cell-derived factor 1 (SDF-1) delayed the progression of OA to a certain extent. The aim of this study was to explore the specific mechanism of SDF-1 in OA.
Materials and methods
OA chondrocytes and a collagen-induced osteoarthritis (CIOA) mouse model were used as in vitro and in vivo models, respectively. SDF-1 was used to treat OA in vitro and in vivo. To explore the mechanism of SDF-1 in OA treatment, we pretreated chondrocytes with a Sirt 3 inhibitor and assessed mitochondrial function and then analysed related indicators of cartilage anabolic and cartilage metabolism.
Results
SOD2 and PGC 1α levels were significantly lower in OA chondrocytes and the cartilage of CIOA model mice than in normal chondrocytes, and mitochondrial dysfunction occurred in OA. After treating OA chondrocytes and CIOA model mice with exogenous SDF-1, mitochondrial dysfunction and abnormal biomarkers of OA normalized. The pretreatment of OA chondrocytes with a Sirt 3 inhibitor or mitochondrial function inhibitor before SDF-1 exposure reversed these changes.
Conclusions
SDF-1 can alleviate OA by resolving mitochondrial dysfunction through the activation of the Sirt3/PGC-1α signalling pathway, and therefore, SDF-1 may be a good candidate as a new treatment for OA.
Social Incompatibilities of Saudi Arabia Migrant Returnees: A Case Study in North Wollo District, Northeast Ethiopia
Authors: Dejen Ephrem 
Published: November 2024

Abstract

The study aimed to explore the social integrations, social contributions, social acceptance and estrangement of returnees. Qualitative case study has employed to address the study objectives. In-depth interview, key informant interviews, and FGD were used as methods of data collection. The study participants have chosen using a purposive sampling and snowball techniques. The finding of the study has been analyzed thematically. The study reveals that migrant returnees from Saudi Arabia live in disorganized social life and face complex emotional issues. Their daily lives is challenging through social isolation, limited social contributions, and cultural estrangements. Stakeholders should prioritize returnee’s sociocultural reintegration efforts.
Relating satellite NO2 tropospheric columns to near-surface concentrations: implications from ground-based MAX-DOAS NO2 vertical profile observations
Authors: Chang Bowen , Liu Haoran , Zhang Chengxin , Xing Chengzhi , Tan Wei , Liu Cheng 
Published: November 2024

Abstract

Given the significant environmental and health risks associated with near-surface nitrogen dioxide (NO2), machine learning is frequently employed to estimate near-surface NO2 concentrations (SNO2) from satellite-derived tropospheric NO2 column densities (CNO2). However, data-driven methods often face challenges in explaining the complex relationships between these variables. In this study, the correlation between CNO2 and SNO2 is examined using vertical profile observations from China’s MAX-DOAS network. Cloud cover and air convection substantially weaken (R = -0.68) and strengthen (R = 0.71) the CNO2-SNO2 correlation, respectively. Meteorological factors are shown to predominantly influence the CNO2-SNO2 correlation (R2 = 0.58), with correlation levels 31% higher in northern regions compared to the southwest. Additionally, anthropogenic emissions impact SNO2, while topographical features shape regional climate patterns. Observations at the Chongqing site reveal notable contrasts and lags in daily CNO2 and SNO2 fluctuations due to complex interactions among adverse meteorology, severe emissions, and basin topography. This study enhances understanding of the spatial and temporal dynamics and influencing mechanisms of CNO2 and SNO2, supporting improved air quality assessments and pollution exposure evaluations.
Fabrication of Low-Tortuosity Thick Electrodes with Minimal Material Loss by Temporally Shaped Ultraviolet Femtosecond Laser
Authors: Cheng Qian , Wu Junrui , Wang Ruoxi , Jiang Lan , Li Xin , Zhang Jiang , Jia Richen , Tian Mengyao , Liu Yu , Guo Huixin , Wang Xiaofeng , Zhao Ran , Liao Xiangbiao 
Published: November 2024

Abstract

Fabrication of through holes can reduce the electrode tortuosity of thick electrodes. However, traditional through hole preparation methods are usually complex and incompatible with calendaring. In particular, the excessive loss introduced by through holes reduces the space utilization rate and offsets the increase in energy density. Here, an array of high-density micro-holes is fabricated by temporally shaped ultraviolet femtosecond laser. Using this technique, we achieve a maximum aspect ratio of 47 (6 µm in diameter) and ensure minimal material loss (< 1%) on thick electrodes with thicknesses of 280 µm. The tortuosity of the electrode is significantly reduced by nearly half, thereby boosting the gravimetric energy density of batteries by 9.32–17.26%, or increase the power density by 100 to 400%, and double the lifetime. This work demonstrates a simple approach for fabricating low-tortuosity electrodes that substantially improve power density, energy density and lifetime of batteries.