检索结果-南通市图书馆

Journal of Environmental Sciences 2024年第6期140卷 219-229页

作者： da.iela gonzález-Varela JFrancisco gómez-garcía gustavo Tavizon Heriberto Pfeiffer Instituto de Investigaciones en Materiales Universidad Nacional Autónoma de MéxicoCd.UniversitariaDel.CoyoacánCP 04510Ciudad de MéxicoMéxico Departamento de Física y Química Teórica Facultad de QuímicaUniversidad Nacional Autónoma de MéxicoCd.UniversitariaDel.CoyoacánCP 04510Ciudad de MéxicoMéxico 不详

This work shows the synthesis,characterization and evaluation of dense-ceramic membranes made of Ce_(0.85)gd_(0.15)O_(2-δ)-LaNiO_(3)(Cg-LN)composites,where the fluorite-perovskite ratio(Cg:LN)was varied as follows:75:25,80:20 and 85:15 wt.%.Supports were initially characterized by XRD,SEM and electrical conductivity(using vacuum and oxygen atmospheres),to determine the composition,microstructural and ionic-electronic conductivity ***,supports were infiltrated with an eutectic carbonates mixture,producing the corresponding dense dual-phase membranes,in which CO_(2)permeation tests were ***,CO_(2)permeation experiments were performed from 900 to 700℃,in the presence and absence of oxygen(flowed in the sweep membrane side).Results showed that these composites possess high CO_(2)permeation properties,where the O_(2)addition significantly improves the ionic conduction on the sweep membrane ***,the gC80-LN20 composition presented the best results due to the following physicochemical characteristics:high electronic and ionic conductivity,appropriate porosity,interconnected porous channels,as well as thermal and chemical stabilities between the composite support and carbonate phases.

关键词： CO_(2)permeation Doped CeO_(2) LaNiO_(3) Impeda.ce Ceramic carbonate membrane

Modeling mitochondria,where are the numbers?

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2024年第7期19卷 1435-1436页

作者： Adrian M.da.ies Alan g.Holt University Center Shrewsbury ShrewsburyShropshireUK

Models and simulations are particularly useful for exploring ideas and concepts in the biological sciences that are expe rimentally *** silico methods are also gaining acceptance with regulatory authorities as an alte... 详细信息

关键词： eliminate authorities acceptance

在线全文

学校读者我要写书评

暂无评论

可解释性矿产预测人工智能模型

中国科学：地球科学 2024年第9期54卷 2917-2928页

作者：左仁广成秋明许莹杨帆帆熊义辉王子烨 oliver P.KREUZER 中国地质大学(武汉)地质过程与矿产资源国家重点实验室武汉430074 中山大学地球科学与工程学院珠海519000 Corporate geoscience group(CgSg) PO Box 5128 Rockingham BeachWA 6969Australia Economic geology Research Centre(EgRU) College of Science and EngineeringJames Cook UniversityTownsvilleQLD 4811Australia

矿产资源潜力评价主要目的之一是通过整合和分析地质找矿大数据以缩小找矿区域.地质找矿大数据具有数据量大、结构复杂等特征,常常无法对其进行有效地处理和解释.人工智能算法是挖掘地质找矿大数据中潜在非线性矿化模式的有效工具,已经... 详细信息

矿产资源潜力评价主要目的之一是通过整合和分析地质找矿大数据以缩小找矿区域.地质找矿大数据具有数据量大、结构复杂等特征,常常无法对其进行有效地处理和解释.人工智能算法是挖掘地质找矿大数据中潜在非线性矿化模式的有效工具,已经在矿产预测领域表现出优越性能.然而,人工智能驱动的矿产预测目前面临一些挑战,如可解释性差、泛化能力弱、预测结果与物理规律不一致等.本文在前人研究的基础上,将领域知识嵌入人工智能驱动的矿产预测全过程,建立了更加透明和可解释的矿产预测人工智能模型.该模型提供了强大的成矿知识和专家经验指导矿产预测人工智能模型训练的全过程,包括数据输入、模型设计及模型输出等环节,从而提高矿产预测人工智能模型的可解释性和预测性能.总体而言,可解释性矿产预测人工智能模型实现了整个建模过程中先验知识和专家经验的嵌入,为未来矿产预测研究提供了一个有价值和前景的方向.

关键词：人工智能矿产预测地质找矿大数据领域知识可解释性

Anthropogenic mineral generation and its potential resource supply:The case of niobium

在线全文

学校读者我要写书评

暂无评论

Science China Earth Sciences 2024年第8期67卷 2583-2591页

作者： Xianlai ZENg Moisés gómez Mahmoud BAKRY Yong gENg Jinhui LI School of Environment Tsinghua UniversityBeijing 100084China School of Environmental Science and Engineering Shanghai Jiao Tong UniversityShanghai 200240China School of International and Public Affairs Shanghai Jiao Tong UniversityShanghai 200030China

The strategy of carbon neutrality is reshaping the global landscape of resource flow and *** the final sink of geological minerals,the proliferated anthropogenic minerals,also called seconda.y resources,play an increasingly important role in resource supply *** is a critical metal that lacks full concern for its *** funda.ental principle of niobium circularity is to recycle and maintain the material as close to the manufacturing process as *** we estimate the niobium-containing applications lost at their end-of-life,underscoring the imperative to minimize such ***,we elucida.e the extraction processes for scrap and alloy quantities throughout the industry's *** from anticipated waste generated by the majority of niobium applications,a forecast indicates a potential loss of approximately 168 kt by 2090 in the absence of ***,with a recycling efficiency of 90%for niobium,the projected loss diminishes to approximately 16 *** delve into the significance of niobium's circular economy and explore various aspects that demand further investigation for a seamless transition from linear to circular practices.

关键词： Niobium Anthropogenic mineral Circular economy Recycling Sustainability

A remarkable decade of learning and sharing knowledge through the Journal of Palaeogeography(JoP)(2014-2024):Reminiscences from an Associate Editor-in-Chief

在线全文

学校读者我要写书评

暂无评论

Journal of Palaeogeography 2024年第4期 1029-1040页

作者： g.Shanmugam Department of Earth and Environmental Sciences The University of Texas at Arlington

In this editorial, an Associate Editor-in-Chief of the Journal of Palaeogeography(JoP) reminisces his publication experience in JoP during the period 2014-2024. 1) During a period of nine years, he contributed eight review articles, three discussions, two replies, one book review, one glossary, and one tribute to the first Editor-in-Chief Prof. Zeng-Zhao Feng. His contributions totaled 534 printed pages. 2) His contributions examined 19 different domains, such as landslides, submarine fans, seismites, SSDS, hyperpycnites, rivers,etc. 3) His contributions coincided with the formative years of JoP. 4) The impact of his articles is evident from the Stats published by Researchgate. For example, his review article “The Landslide Problem” has reached11,611 Reads and 186 Citations after nine years of publication in 2015. 5) In 2023, the CNKI(China National Knowledge Infrastructure) recognized his article “Submarine fans: a critical retrospective(1950-2015)” as the Top-1% most-highly cited publications in the Journal of Palaeogeography published during a 10-year survey period: 2012-2022. 6) He was inducted as a Founding Member of the International Society of Palaeogeography(ISP) at Changping District of China University of Petroleum(Beijing), Beijing on July 16, 2022. 7) His JoP editorship during the past 10 years has been the most challenging, inspiring, and rewarding experience of his global scientific journey spanning over six decades(1962-2024).

关键词：

Phospholipase A2 enzymes PLA2g2A and PLA2g12B as potential diagnostic and prognostic biomarkers in cholangiocarcinoma

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

World Journal of gastrointestinal Surgery 2024年第2期16卷 289-306页

作者： Chen Qiu Yu-Kai Xiang Xuan-Bo da.Hong-Lei Zhang Xiang-Yu Kong Nian-Zong Hou Cheng Zhang Fu-Zhou Tian Yu-Long Yang Center of gallbladder Disease Shanghai East HospitalInstitute of Gallstone DiseaseSchool of MedicineTongji UniversityShanghai 200092China general Surgery Center Chengdu Military General HospitalChengdu 610083Sichuan ProvinceChina

BACKgROUND Phospholipase A2(PLA2)enzymes are pivotal in various biological processes,such as lipid mediator production,membrane remodeling,bioenergetics,and maintaining the body surface ***,these enzymes play a significant role in the development of diverse *** To systematically and comprehensively explore the expression of the PLA2 family genes and their potential implications in cholangiocarcinoma(CCA).METHODS We conducted an analysis of five CCA da.asets from The Cancer genome Atlas and the gene Expression *** study identified differentially expressed genes between tumor tissues and adjacent normal tissues,with a focus on PLA2g2A and *** Set Enrichment Analysis was utilized to pinpoint associated ***,relevant hub genes and microRNAs for PLA2g2A and PLA2g12B were predicted,and their correlation with the prognosis of CCA was *** PLA2g2A and PLA2g12B were discerned as differentially expressed in CCA,manifesting significant variations in expression levels in urine and serum between CCA patients and healthy *** expression of PLA2g2A was correlated with poorer overall survival in CCA ***,the study delineated pathways and miRNAs associated with these *** Our findings suggest that PLA2g2A and PLA2g12B may serve as novel potential diagnostic and prognostic markers for *** increased levels of these genes in biological fluids could be employed as non-invasive markers for CCA,and their expression levels are indicative of prognosis,underscoring their potential utility in clinical settings.

关键词： PLA2g2A PLA2g12B Diagnostic Prognostic biomarkers cholangiocarcinoma

Nomograms and prognosis for superficial esophageal squamous cell carcinoma

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of gastroenterology 2024年第10期30卷 1291-1294页

作者： Hong Tao Lin Ahmed Abdelbaki Somashekar g Krishna Department of Internal Medicine Division of GastroenterologyHepatology and NutritionThe Ohio State University Wexner Medical CenterColumbusOH 43210United States

In recent years,endoscopic resection,particularly endoscopic submucosal dis-section,has become increasingly popular in treating non-metastatic superficial esophageal squamous cell carcinoma(ESCC).In this evolving paradigm,it is crucial to identify factors that predict higher rates of lymphatic invasion and poorer *** tumor size,deeper invasion,poorer differentiation,more infiltrative growth patterns(INF-c),higher-grade tumor budding,positive lymphovascular invasion,and certain biomarkers have been associated with lymph node metastasis and increased morbidity through retrospective reviews,leading to the construction of comprehensive nomograms for outcome *** valida.ed by future prospective studies,these nomograms would prove highly applicable in guiding the selection of treatment for superficial ESCC.

关键词： Esophageal cancer Esophageal squamous cell carcinoma Esophageal resection Endoscopic mucosal resection Endoscopic submucosal dissection Lymph node metastasis

Beyond fossil:the synthetic fuel surge for a green-energy resurgence

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Clean Energy 2024年第5期8卷 1-18页

作者： Sreejaun Thothaathiri Janaki Dinesh Kumar Madheswaran g.Naresh Thangavelu Praveenkumar Electric Vehicle Technology Laboratory Department of Automobile EngineeringSRM Institute of Science and TechnologyKattankulathur CampusTamilnadu 603203India

This review offers a comprehensive overview of synthetic fuels as promising alternatives to conventional fossil *** carbon-neutral potential of synthetic fuels when produced using renewable energy and captured CO_(2),offering significant opportunities to mitigate CO_(2) emissions,is ***,the efficiency of synthetic fuels is presented,as they do not require dedicated agricultural land or substantial water resources,addressing concerns related to the land-use change and water scarcity associated with traditional *** economic viability of synthetic fuels is explored,highlighting the advancements in technology and decreased renewable-energy costs,coupled with their independence from food crops,mitigating concerns about potential impacts on food *** investments by industry leaders such as Porsche,Highly Innovative Fuels global,and ExxonMobil,totalling$1 billion,aimed at achieving an annual production of 550 million litres by 2026,are covered in *** study is further extended by emphasizing the scalability of synthetic fuel production through modular processes,enabling tailored facilities to meet regional demands and contribute to a decentralized and resilient energy ***,the‘drop-in’nature of synthetic fuels that are seamlessly compatible with existing fuel storage,pipelines,and pumps,facilitating a smooth transition without requiring extensive infrastructure changes,is *** such as the current high cost of synthetic fuel production are acknow-ledged,necessitating supportive government policies and incentives for widespread ***,synthetic fuels have emerged as promising contenders in the pursuit of sustainable and ada.table energy solutions,with tangible benefits for the environment,economy,and existing energy infrastructure.

关键词： synthetic fuels biofuels carbon neutrality sustainable energy e-fuel ‘drop-in’nature

Transfer learning applications for autoencoder-based anomaly detection in wind turbines

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Energy and AI 2024年第3期17卷 1-10页

作者： Cyriana M.A.Roelofs Christian gück Stefan Faulstich Fraunhofer IEE Joseph-Beuys-Straße 834117 KasselGermany

Anomaly detection in wind turbines typically involves using normal behaviour models to detect faults *** behaviour models are often implemented through the use of neural networks,of which autoencoders are particularly popular in this ***,training autoencoder models for each turbine is time-consuming and resource ***,transfer learning becomes essential for wind turbines with limited da.a or applications with limited computational *** study examines how cross-turbine transfer learning can be applied to autoencoder-based anomaly ***,autoencoders are combined with constant thresholds for the reconstruction error to determine if input da.a contains an *** models are initially trained on one year’s worth of da.a from one or more source wind *** are then fine-tuned using small amounts of da.a from the target wind *** methods for fine-tuning are investigated:adjusting the entire autoencoder,only the decoder,or only the threshold of the *** performance of the transfer learning models is compared to baseline models that were trained on one year’s worth of da.a from the target wind *** results of the tests conducted in this study indicate that models trained on da.a of multiple wind turbines do not improve the anomaly detection capability compared to models trained on da.a of one source wind *** addition,modifying the model’s threshold can lead to comparable or even superior performance compared to the baseline,whereas fine-tuning the decoder or autoencoder further enhances the models’performance.

关键词： Condition monitoring Transfer learning Autoencoder Anomaly detecti on Wind turbines Fault detection

Advancements,strategies,and prospects of solid oxide electrolysis cells(SOECs):Towards enhanced performance and large-scale sustainable hydrogen production

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2024年第7期94卷 688-715页

作者： Amina Lahrichi Youness El Issmaeli Shankara S.Kalanur Bruno g.Pollet green Hydrogen Lab(gH2Lab) Hydrogen Research Institute(HRI)Universitédu QuébecàTrois-Rivières(UQTR)3351 boulevard des ForgesTrois-RivièresQuébec G9A 5H7Canada

Solid oxide electrolysis cells(SOECs)represent a crucial stride toward sustainable hydrogen generation,and this review explores their current scientific challenges,significant advancements,and potential for large-scale hydrogen *** SOEC technology,the application of innovative fabrication tech-niques,doping strategies,and advanced materials has enhanced the performance and durability of these systems,although degrada.ion challenges persist,implicating the prime focus for future *** we provide in-depth analysis of the recent developments in SOEC technology,including Oxygen-SOECs,Proton-SOECs,and ***,Hybrid-SOECs,with their mixed ionic conducting electrolytes,demonstrate superior efficiency and the concurrent production of hydrogen and *** with the capacity to harness waste heat,these advancements in SOEC technology present signif-icant promise for pilot-scale applications in *** review also highlights remarkable achieve-ments and potential reductions in capital expenditure for future SOEC systems,while elaborating on the micro and macro aspects of sOECs with an emphasis on ongoing research for optimization and *** concludes with the potential of SOEC technology to meet various industrial energy needs and its significant contribution considering the key research priorities to tackle the global energy demands,ful-fillment,and decarbonization efforts.

关键词： Solid oxide electrolysis cells Proton-SOECs Oxygen-SoECs Hybrid-SOECs Intermediate-high temperature electrolysers Hydrogenproduction