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Subsurface Geotechnical-Characterization near Some Buildings at the Centro Universitario de la Costa UDG (Puerto Vallarta, Jalisco, Mexico) Using Electrical Resistivity Tomography
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作者 Nayeli Monserrat Aguirre-Macías Mario Alberto Fuentes-Arreazola +2 位作者 Sergio Pedroza-Ruciles Hector Javier Rendón-Contreras Jorge Ignacio Chavoya-Gama 《Open Journal of Civil Engineering》 2024年第4期520-535,共16页
Geotechnical studies are essential in civil engineering for all building and infrastructure projects. Typically, in-situ studies involving soil sample collection through drilling are conducted. However, these invasive... Geotechnical studies are essential in civil engineering for all building and infrastructure projects. Typically, in-situ studies involving soil sample collection through drilling are conducted. However, these invasive methods can be costly when numerous boreholes are needed to assess stratum continuity or are impractical for examining subsurface conditions beneath existing structures. Shallow geophysical exploration offers several non-invasive alternatives for subsurface characterization, with Electrical Resistivity Tomography (ERT) being particularly versatile. ERT provides detailed and accurate subsurface images through a relatively simple and fast field implementation. For this study, four 2D ERT profiles were designed and performed near three buildings at the Centro Universitario de la Costa in Puerto Vallarta, Jalisco, Mexico, using a Gito-1100 V resistivity meter from Hematec with Dipole-Dipole arrays. Basic descriptive statistics were calculated for each data set to establish criteria for outlier removal, optimizing the inversion process in Res2DInv software. The inversion results defined five geoelectric units [UG-1 (1 to 20 Ω‧m), UG-2 (20 to 40 Ω‧m), UG-3 (40 to 100 Ω‧m), UG-4 (100 to 500 Ω‧m), and UG-5 (750 to 1000 Ω‧m)], consistent with previously identified geologic materials. The 2D ERT profiles allowed for the identification of lateral variations in moisture content and saturation and determined the depth of consolidated and possibly cemented materials suitable for future infrastructure projects on the university campus. This work provides a reference framework for implementing the 2D-ERT technique in Puerto Vallarta, supporting its use as a non-invasive alternative for effective subsurface characterization in geotechnical and civil engineering contexts. 展开更多
关键词 Geotechnical Characterization Electrical Resistivity Tomography Non-Invasive Soil Studies
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The patients’ opinion on the use of information technologies at the Seskine Outpatient Clinic and “Centro poliklinika” Outpatient Clinic of the city of Vilnius according to the age of patients
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作者 Jonas Kairys Rimantas Stukas +3 位作者 Rasa Stundziene Kestutis Staras Pranas Serpytis Rolandas Cepulis 《Open Journal of Preventive Medicine》 2013年第9期551-560,共10页
Objectives: The objective of this study is to assess patients’ opinion of the information technologies (IT) electronic registration systems at the “Centro poliklinika” and Seskine outpatient clinics in Vilnius City... Objectives: The objective of this study is to assess patients’ opinion of the information technologies (IT) electronic registration systems at the “Centro poliklinika” and Seskine outpatient clinics in Vilnius City. Material and Methods: The survey was conducted in May-June, 2012. In the course of the primary survey, one questionnaire was handed out to one in tenth of the newly arrived patients. Total number of 650 questionnaires was distributed. 563 respondents participated in the survey (feedback rate—86.6%). Statistical analysis of data was performed by means of personal computer using SPSS software package. Results: 54.7% of respondents state that they make use of the possibility of online registration with the family doctor. 85.05% of respondents indicate that a doctor, when making the next appointment or referring to the medical specialist, registers a patient on site by means of computer. Upon arrival of a respondent to the reception desk of the medical establishment, 90.3% of respondents are registered by means of computer. 72.4% of respondents say that they have a choice to telephone and inquire about the time of visit if they have forgotten the visit time or lost the appointment sheet. Majority of respondents using the online registration option belong to the age group between 21 and 40 years—35.3%. Conclusions: Answers by the respondents and the breakdown between “Centro poliklinika” and Seskine outpatient clinics are very similar and no essential differences have been determined. 展开更多
关键词 Patients’ Opinion Outpatient Health Care E-HEALTH Population Age Groups
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Immunoproteasome as a therapeutic target in obesity-related brain inflammation and metabolic disorders
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作者 Javiera Alvarez-Indo Nicolas Albornoz +1 位作者 Andrea Soza Patricia V.Burgos 《Neural Regeneration Research》 2026年第4期1554-1555,共2页
Obesity is widely recognized as a global epidemic,primarily driven by an imbalance between energy expenditure and caloric intake associated with a sedentary lifestyle.Diets high in carbohydrates and saturated fats,par... Obesity is widely recognized as a global epidemic,primarily driven by an imbalance between energy expenditure and caloric intake associated with a sedentary lifestyle.Diets high in carbohydrates and saturated fats,particularly palmitic acid,are potent inducers of chronic low-grade inflammation,largely due to disruptions in glucose metabolism and the onset of insulin resistance(Qiu et al.,2022).While many organs are affected,the brain,specifically the hypothalamus,is among the first to exhibit inflammation in response to an unhealthy diet,suggesting that obesity may,in fact,be a brain-centered disease with neuroinflammation as a central factor(Thaler et al., 2012). 展开更多
关键词 palmitic acid saturated fatsparticularly palmitic acidare IMMUNOPROTEASOME metabolic disorders insulin resistance qiu glucose metabolism brain inflammation
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GEMIN5 and neurodevelopmental diseases: From functional insights to disease perception
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作者 Encarnacion Martinez-Salas Rosario Francisco-Velilla 《Neural Regeneration Research》 2026年第1期187-194,共8页
GEMIN5 is a predominantly cytoplasmic multifunctional protein, known to be involved in recognizing snRNAs through its WD40 repeats domain placed at the N-terminus. A dimerization domain in the middle region acts as a ... GEMIN5 is a predominantly cytoplasmic multifunctional protein, known to be involved in recognizing snRNAs through its WD40 repeats domain placed at the N-terminus. A dimerization domain in the middle region acts as a hub for protein–protein interaction, while a non-canonical RNA-binding site is placed towards the C-terminus. The singular organization of structural domains present in GEMIN5 enables this protein to perform multiple functions through its ability to interact with distinct partners, both RNAs and proteins. This protein exerts a different role in translation regulation depending on its physiological state, such that while GEMIN5 down-regulates global RNA translation, the C-terminal half of the protein promotes translation of its mRNA. Additionally, GEMIN5 is responsible for the preferential partitioning of mRNAs into polysomes. Besides selective translation, GEMIN5 forms part of distinct ribonucleoprotein complexes, reflecting the dynamic organization of macromolecular complexes in response to internal and external signals. In accordance with its contribution to fundamental cellular processes, recent reports described clinical loss of function mutants suggesting that GEMIN5 deficiency is detrimental to cell growth and survival. Remarkably, patients carrying GEMIN5 biallelic variants suffer from neurodevelopmental delay, hypotonia, and cerebellar ataxia. Molecular analyses of individual variants, which are defective in protein dimerization, display decreased levels of ribosome association, reinforcing the involvement of the protein in translation regulation. Importantly, the number of clinical variants and the phenotypic spectrum associated with GEMIN5 disorders is increasing as the knowledge of the protein functions and the pathways linked to its activity augments. Here we discuss relevant advances concerning the functional and structural features of GEMIN5 and its separate domains in RNA-binding, protein interactome, and translation regulation, and how these data can help to understand the involvement of protein malfunction in clinical variants found in patients developing neurodevelopmental disorders. 展开更多
关键词 Gemin5 variants modular organization neurodevelopmental diseases RNA-binding proteins selective translation structural domains
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Potential impact of parasites in the transmission of chronic wasting disease
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作者 Paulina Soto Rodrigo Morales 《Neural Regeneration Research》 2026年第5期1999-2000,共2页
Chronic wasting disease—a prion disease affecting cervids:Many neurological conditions,including Alzheimer's and Parkinson's diseases,amyotrophic lateral sclerosis,frontotemporal dementias,among others,are ca... Chronic wasting disease—a prion disease affecting cervids:Many neurological conditions,including Alzheimer's and Parkinson's diseases,amyotrophic lateral sclerosis,frontotemporal dementias,among others,are caused by the accumulation of misfolded proteins in the brain.These diseases affect not only humans,but also animals. 展开更多
关键词 prion disease CERVIDS misfolded proteins parasites chronic wasting disease parkinsons diseasesamyotrophic lateral sclerosisfrontotemporal neurological conditions
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Neuroprotection provided by polyphenols and flavonoids in photoreceptor degenerative diseases
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作者 Théo Henrique de Lima-Vasconcellos Gabrieli Bovi dos Santos +4 位作者 Marília Inês Móvio Giovanna Klemenc Donnici Gabriela Maria Badin Daniele Ribeiro de Araujo Alexandre Hiroaki Kihara 《Neural Regeneration Research》 2026年第3期908-922,共15页
The intricate landscape of neurodegenerative diseases complicates the search for effective therapeutic approaches.Photoreceptor degeneration,the common endpoint in various retinal diseases,including retinitis pigmento... The intricate landscape of neurodegenerative diseases complicates the search for effective therapeutic approaches.Photoreceptor degeneration,the common endpoint in various retinal diseases,including retinitis pigmentosa and age-related macular degeneration,leads to vision loss or blindness.While primary cell death is driven by genetic mutations,oxidative stress,and neuroinflammation,additional mechanisms contribute to disease progression.In retinitis pigmentosa,a multitude of genetic alterations can trigger the degeneration of photoreceptors,while other retinopathies,such as agerelated macular degeneration,are initiated by combinations of environmental factors,such as diet,smoking,and hypertension,with genetic predispositions.Nutraceutical therapies,which blend the principles of nutrition and pharmaceuticals,aim to harness the health benefits of bioactive compounds for therapeutic applications.These compounds generally possess multi-target effects.Polyphenols and flavonoids,secondary plant metabolites abundant in plant-based foods,are known for their antioxidant,neuroprotective,and anti-inflammatory properties.This review focuses on the potential of polyphenols and flavonoids as nutraceuticals to treat neurodegenerative diseases such as retinitis pigmentosa.Furthermore,the importance of developing reliable delivery methods to enhance the bioavailability and therapeutic efficacy of these compounds will be discussed.By combining nutraceuticals with other emerging therapies,such as genetic and cell-based treatments,it is possible to offer a more comprehensive approach to treating retinal degenerative diseases.These advancements could lead to a viable and accessible option,improving the quality of life for patients with retinal diseases. 展开更多
关键词 FLAVONOIDS NEUROINFLAMMATION nutraceutical therapy oxidative stress retinitis pigmentosa
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Adeno-associated viral vectors for modeling Parkinson's disease in non-human primates
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作者 Julia Chocarro José L.Lanciego 《Neural Regeneration Research》 2026年第1期224-232,共9页
The development of clinical candidates that modify the natural progression of sporadic Parkinson's disease and related synucleinopathies is a praiseworthy endeavor,but extremely challenging.Therapeutic candidates ... The development of clinical candidates that modify the natural progression of sporadic Parkinson's disease and related synucleinopathies is a praiseworthy endeavor,but extremely challenging.Therapeutic candidates that were successful in preclinical Parkinson's disease animal models have repeatedly failed when tested in clinical trials.While these failures have many possible explanations,it is perhaps time to recognize that the problem lies with the animal models rather than the putative candidate.In other words,the lack of adequate animal models of Parkinson's disease currently represents the main barrier to preclinical identification of potential disease-modifying therapies likely to succeed in clinical trials.However,this barrier may be overcome by the recent introduction of novel generations of viral vectors coding for different forms of alpha-synuclein species and related genes.Although still facing several limitations,these models have managed to mimic the known neuropathological hallmarks of Parkinson's disease with unprecedented accuracy,delineating a more optimistic scenario for the near future. 展开更多
关键词 adeno-associated viral vectors ALPHA-SYNUCLEIN DOPAMINE Lewy bodies NEURODEGENERATION NEUROMELANIN NEUROPATHOLOGY substantia nigra
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Regulation of dendrite and axon growth and arborization by CD40L-reverse signaling:Interrelationships among JNK,PKC,and ERK1/2 signaling pathways
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作者 Paulina Carriba 《Neural Regeneration Research》 2026年第3期1116-1117,共2页
The nervous system function requires a precise but plastic neural architecture.The neuronal shape dictates how neurons interact with each other and with other cells,being the morphology of dendrites and axons the cent... The nervous system function requires a precise but plastic neural architecture.The neuronal shape dictates how neurons interact with each other and with other cells,being the morphology of dendrites and axons the central determinant of the functional properties of neurons and neural circuits.The topological and structural morphology of axons and dendrites defines and determines how synapses are conformed.The morphological diversity of axon and dendrite arborization governs the neuron’s inputs,synaptic integration,neuronal computation,signal transmission,and network circuitry,hence defining the particular connectivity and function of the different brain areas. 展开更多
关键词 CD L dendrite growth dendrite arborization nervous system neural architecturethe reverse signaling PKC JNK
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Human cerebral organoids:Complex,versatile,and human-relevant models of neural development and brain diseases
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作者 Raquel Coronel Rosa González-Sastre +8 位作者 Patricia Mateos-Martínez Laura Maeso Elena Llorente-Beneyto Sabela Martín-Benito Viviana S.Costa Gagosian Leonardo Foti Ma Carmen González-Caballero Victoria López-Alonso Isabel Liste 《Neural Regeneration Research》 2026年第3期837-854,共18页
The brain is the most complex human organ,and commonly used models,such as two-dimensional-cell cultures and animal brains,often lack the sophistication needed to accurately use in research.In this context,human cereb... The brain is the most complex human organ,and commonly used models,such as two-dimensional-cell cultures and animal brains,often lack the sophistication needed to accurately use in research.In this context,human cerebral organoids have emerged as valuable tools offering a more complex,versatile,and human-relevant system than traditional animal models,which are often unable to replicate the intricate architecture and functionality of the human brain.Since human cerebral organoids are a state-of-the-art model for the study of neurodevelopment and different pathologies affecting the brain,this field is currently under constant development,and work in this area is abundant.In this review,we give a complete overview of human cerebral organoids technology,starting from the different types of protocols that exist to generate different human cerebral organoids.We continue with the use of brain organoids for the study of brain pathologies,highlighting neurodevelopmental,psychiatric,neurodegenerative,brain tumor,and infectious diseases.Because of the potential value of human cerebral organoids,we describe their use in transplantation,drug screening,and toxicology assays.We also discuss the technologies available to study cell diversity and physiological characteristics of organoids.Finally,we summarize the limitations that currently exist in the field,such as the development of vasculature and microglia,and highlight some of the novel approaches being pursued through bioengineering. 展开更多
关键词 assembloids BIOENGINEERING challenges disease modeling drug screening and toxicology human brain organoids human pluripotent stem cells neurodegenerative diseases NEURODEVELOPMENT VASCULARIZATION
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Generation of high energy laser-driven electron and proton sources with the 200 TW system VEGA 2 at the Centro de Laseres Pulsados
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作者 L.Volpe R.Fedosejevs +23 位作者 G.Gatti J.A.Pérez-Hernández C.Méndez J.Apinaniz X.Vaisseau C.Salgado M.Huault S.Malko G.Zeraouli V.Ospina A.Longman D.De Luis K.Li O.Varela E.García I.Hernandez J.D.Pisonero J.Garcia Ajates J.M.Alvarez C.García M.Rico D.Arana J.Hernandez-Toro L.Roso 《High Power Laser Science and Engineering》 SCIE CAS CSCD 2019年第2期34-39,共6页
The Centro de Laseres Pulsados in Salamanca,Spain has recently started operation phase and the first user access period on the 6 J 30 fs 200 TW system(VEGA 2)already started at the beginning of 2018.In this paper we r... The Centro de Laseres Pulsados in Salamanca,Spain has recently started operation phase and the first user access period on the 6 J 30 fs 200 TW system(VEGA 2)already started at the beginning of 2018.In this paper we report on two commissioning experiments recently performed on the VEGA 2 system in preparation for the user campaign.VEGA 2 system has been tested in different configurations depending on the focusing optics and targets used.One configuration(long focal length F=130 cm)is for underdense laser-matter interaction where VEGA 2 is focused onto a low density gas-jet generating electron beams(via laser wake field acceleration mechanism)with maximum energy up to 500 MeV and an X-ray betatron source with a 10 keV critical energy.A second configuration(short focal length F= 40 cm)is for overdense laser-matter interaction where VEGA 2 is focused onto a 5 μm thick Al target generating a proton beam with a maximum energy of 10 MeV and temperature of 2.5 MeV.In this paper we present preliminary experimental results. 展开更多
关键词 high power laser LASER-PLASMA PARTICLE ACCELERATION
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城市固废焚烧过程神经网络控制研究综述 被引量:1
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作者 汤健 田昊 +1 位作者 余文 乔俊飞 《自动化学报》 北大核心 2025年第9期1951-1973,共23页
城市固废焚烧(MSWI)已成为解决城市环境问题并实现可再生能源循环利用的主流技术,其对应系统具有参数多、耦合性强、非线性显著等特性,需采用先进过程控制技术以确保平稳高效的运行.鉴于此,进行面向MSWI过程神经网络控制(NNC)综述以弥... 城市固废焚烧(MSWI)已成为解决城市环境问题并实现可再生能源循环利用的主流技术,其对应系统具有参数多、耦合性强、非线性显著等特性,需采用先进过程控制技术以确保平稳高效的运行.鉴于此,进行面向MSWI过程神经网络控制(NNC)综述以弥补该领域的缺失和促进深入研究.首先,描述典型MSWI过程工艺,分析其控制问题与控制目标,明确控制复杂性,概述NNC及其在管理此类复杂系统方面的优势;其次,综述面向控制的机理与数据驱动焚烧炉模型;随后,简要分析和介绍非NNC控制器设计在MSWI过程的研究现状;接着,详细综述面向NNC的浅层和模糊控制器设计、网络参数、网络结构和事件触发在线更新算法以及稳定性分析的研究现状,并进行控制性能分析;然后,展望未来研究方向;最后,总结了本文在促进NNC向MSWI过程控制具身智能化发展中的贡献. 展开更多
关键词 城市固废焚烧 先进过程控制 神经网络控制 参数在线更新 结构自组织 事件驱动控制
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SEGNALAZIONE DI Hydroporus jurjurensis REGIMBART(Coleoptera Dytiscidae)NUOVO PER L'ITALIA CONTINENTALE RACCOLTO SUI MONTI DELLA LAGA(Appennino Centro Meridionale)
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作者 MARIO TOLEDO 《Natural Disaster Reduction in China》 1993年第1期203-206,共4页
RIASSUNTO-Hydroporus jurjurensis Reg.è stato raccolto per la prima volta in Italia continentale,in un torrente sui Monti della Laga(Ascoli Piceno).Viene illustrato l’edeago e vengono discusse breve-mente le spec... RIASSUNTO-Hydroporus jurjurensis Reg.è stato raccolto per la prima volta in Italia continentale,in un torrente sui Monti della Laga(Ascoli Piceno).Viene illustrato l’edeago e vengono discusse breve-mente le specie di Hydroporus appartenenti al gruppo longulus in Italia.Indication of Hydroporus jurjurensis Regimbart,new for continental Italy,collected onthe mountains of Laga(South-Central Appennines).H.jurjurensis Reg.collected in a stream on themountains of Laga(Ascoli Piceno)is recorded for the first time for continental Italy.Illustration ofthe penis is given and the Italian species of the longulus group are briefly discussed. 展开更多
关键词 左派 入口
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FLORA DELLA PIANURA BRESCIANA CENTRO-OCCIDENTALE I Aggiornamento
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作者 EUGENIO ZANOTTI 《Natural Disaster Reduction in China》 1992年第1期131-134,共4页
In questo primo contributo l’Autore segnala 12 nuove specie rinvenute nella pianurabresciana centro-occidentale, in aggiunta all’elenco floristico recentemente pubblicato (ZANOTTI, 1991). Flora of the central-wester... In questo primo contributo l’Autore segnala 12 nuove specie rinvenute nella pianurabresciana centro-occidentale, in aggiunta all’elenco floristico recentemente pubblicato (ZANOTTI, 1991). Flora of the central-western Brescian Plain. First updating. This note is the first updatingof the floral list produced by the Author in 1991. 展开更多
关键词 户口
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轴向双级氨/甲烷湍流预混火焰燃烧特性及NO生成 被引量:2
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作者 张泽雨 王平 +4 位作者 戴凯论 钱伟佳 Subhajit Roy 帅瑞洋 Antonio Ferrante 《化工学报》 北大核心 2025年第2期835-845,共11页
氨气燃烧面临着氮氧化物排放高、燃烧稳定性差等问题,而分级燃烧概念是解决上述问题的途径之一,但其中复杂的燃烧特性尚不明确。为此,对一个自主设计的轴向空气分级氨气-甲烷湍流燃烧装置开展了详细的实验测量和大涡模拟研究。以氨/甲... 氨气燃烧面临着氮氧化物排放高、燃烧稳定性差等问题,而分级燃烧概念是解决上述问题的途径之一,但其中复杂的燃烧特性尚不明确。为此,对一个自主设计的轴向空气分级氨气-甲烷湍流燃烧装置开展了详细的实验测量和大涡模拟研究。以氨/甲烷的混合物为燃料,首级当量比保持为1.2,总当量比在0.4~0.9变化,通过实验测量获得一氧化氮(NO)随总当量比的变化特性,采用大涡模拟结合动态火焰增厚模型对3个燃烧状态进行计算分析,计算结果与实验数据吻合良好。研究表明:随着总当量比的减小,NO排放呈增加的趋势;燃烧室内存在两种燃烧模式,上游是金黄色的含氨燃气富燃预混火焰,下游则是淡蓝色的氢气-空气扩散火焰为主;一级燃烧室中,NO排放主要受OH影响,而二级燃烧室中NO生成受OH影响变小。 展开更多
关键词 双级氨气燃烧 湍流预混燃烧 一氧化氮排放 数值模拟 燃烧实验测量
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基于CycleGAN的土壤CT/SEM图像多尺度融合方法
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作者 黄梓菡 韩巧玲 +2 位作者 赵玥 赵燕东 宋美慧 《林业科学》 北大核心 2025年第8期116-128,共13页
【目的】针对土壤CT图像超分辨率重建任务依赖成对数据集的问题,提出一种基于循环生成对抗网络(CycleGAN)的土壤CT/SEM图像多尺度融合方法(MSF-CycleGAN),提升土壤CT图像质量,降低高分辨率采集CT图像成本,为农林业的智能化管理提供新的... 【目的】针对土壤CT图像超分辨率重建任务依赖成对数据集的问题,提出一种基于循环生成对抗网络(CycleGAN)的土壤CT/SEM图像多尺度融合方法(MSF-CycleGAN),提升土壤CT图像质量,降低高分辨率采集CT图像成本,为农林业的智能化管理提供新的技术支持。【方法】首先,构建土壤CT图像和土壤SEM图像数据集,共包含3种含水率下多次冻融循环的土柱样本,为后续图像分辨率提升提供数据基础。其次,引入适用于跨域转换的CycleGAN网络模型应用于土壤CT/SEM图像多尺度融合任务,利用CT与SEM图像的不同成像特性补充低分辨率土壤CT图像信息。为提高生成图像的分辨率,在生成器A中加入上采样模块,在生成器B中加入下采样模块。为增强图像的真实性和一致性,采用双线性插值法将原始图像上采样后加入身份损失函数的计算。最后,基于改进ConvNeXt网络模型对融合高分辨率图像进行孔隙分割,构建三维孔隙模型并进行参数提取。【结果】在相同试验条件下,本研究从定性、定量角度对比MSF-CycleGAN与超分辨率重建算法,证明MSF-CycleGAN多尺度融合方法能够提高土壤CT图像的分辨率且效果比超分辨率重建算法更明显。引入SEM图像和身份损失函数,验证了二者设计的有效性。对50%、75%、100%含水率土柱的图像多尺度融合试验表明,融合后的土壤三维模型能够观察到更多细小孔隙,孔隙数量增加2倍,孔隙率较融合前提高3.93%,孔隙成圆率提高3.64%,分形维数提高0.55%。孔隙参数量化试验表明,基于高分辨率融合图像分割量化的孔隙参数在冻融循环下的变化更符合现有研究规律,证明本研究方法能够准确、有效提高土壤CT图像的分辨率。【结论】本研究论证将土壤CT图像与SEM图像进行多尺度融合提高CT图像分辨率的可行性,为降低采集高分辨率图像成本提供了新的技术路线,能够推动土壤结构研究的精细化与智能化发展。 展开更多
关键词 土壤 多尺度融合 循环生成对抗网络 CT图像 SEM图像
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欧洲统一电力市场解耦事故分析
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作者 袁浩 Nuno PINHO DA SILVA +4 位作者 杨争林 邵平 陈涛 夏潮 冯凯 《电力系统自动化》 北大核心 2025年第19期26-38,共13页
欧洲统一电力市场自2014年投入运行以来,多次经历市场解耦事故。随着能源结构调整和市场规模扩大,此类事故频率显著上升,导致市场价格波动,影响市场主体行为,并可能引发电网安全风险。文中介绍了欧洲电力市场的最新发展及日内耦合市场... 欧洲统一电力市场自2014年投入运行以来,多次经历市场解耦事故。随着能源结构调整和市场规模扩大,此类事故频率显著上升,导致市场价格波动,影响市场主体行为,并可能引发电网安全风险。文中介绍了欧洲电力市场的最新发展及日内耦合市场机制的主要变化,系统梳理了近年来的解耦事故及其原因,重点分析了2024年欧洲电力交易所现货市场运营商(EPEX SPOT)“6·25”解耦事故的因果关系。研究表明,平台技术故障、市场机制匹配不足及人为操作失误是事故的主要原因。结合中国全国统一电力市场的建设现状,提出了强化技术支持系统、优化市场机制设计以及提高运维管理水平等措施,旨在预防类似解耦事故的发生,保障市场的安全稳定运行。 展开更多
关键词 电力市场 市场解耦 现货市场 交易平台 单一日前耦合 单一日内耦合 日内集中竞价
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CHA_(2)DS_(2)-VASc评分与R_(2)CHA_(2)DS_(2)-VASc评分对心房颤动合并心力衰竭患者预后的预测价值
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作者 林宜乐 张舒妍 +9 位作者 陈泽跃 何志裕 韩敦正 周浩斌 薛宏亮 穆岱明 刘晨 袁沃亮 董吁钢 陈爱兰 《中国循环杂志》 北大核心 2025年第7期674-680,共7页
目的:探讨CHA_(2)DS_(2)-VASc评分与R_(2)CHA_(2)DS_(2)-VASc评分对心房颤动(AF)合并心力衰竭(HF)患者预后的预测价值。方法:选取2017年1月至2021年12月广东省获得HF中心认证的医院收治的AF合并HF患者1839例。以发生主要不良心血管事件(... 目的:探讨CHA_(2)DS_(2)-VASc评分与R_(2)CHA_(2)DS_(2)-VASc评分对心房颤动(AF)合并心力衰竭(HF)患者预后的预测价值。方法:选取2017年1月至2021年12月广东省获得HF中心认证的医院收治的AF合并HF患者1839例。以发生主要不良心血管事件(MACE)为随访终点,MACE定义为因HF再入院或全因死亡。根据MACE发生情况,将患者分为MACE组和无MACE组。通过受试者工作特征(ROC)曲线下面积(AUC)、净重新分类指数(NRI)及综合判别改善指数(IDI)等统计学方法评估CHA_(2)DS_(2)-VASc评分与R_(2)CHA_(2)DS_(2)-VASc评分对AF合并HF患者预后的预测价值。结果:最终确定1839例患者参与研究,其中MACE组703例,无MACE组1136例。与无MACE组比,MACE组年龄更大,纽约心脏协会心功能分级Ⅳ级患者及冠心病患者占比更高,舒张压及估算肾小球滤过率水平更低,N末端B型利钠肽原水平更高,使用血管紧张素转换酶抑制剂/血管紧张素Ⅱ受体拮抗剂/血管紧张素受体脑啡肽酶抑制剂、β受体阻滞剂、醛固酮受体拮抗剂及抗凝药物的患者比例更低(P均<0.05)。多因素Logistic回归分析显示,CHA_(2)DS_(2)-VASc评分与R_(2)CHA_(2)DS_(2)-VASc评分每增加1分,MACE发生风险均约增加10%。CHA_(2)DS_(2)-VASc评分和R_(2)CHA_(2)DS_(2)-VASc评分预测AF合并HF患者MACE的AUC分别为0.555(95%CI:0.528~0.582,P<0.001)和0.576(95%CI:0.549~0.608,P<0.001),R_(2)CHA_(2)DS_(2)-VASc评分的AUC稍高。Delong统计方法显示,CHA_(2)DS_(2)-VASc评分与R_(2)CHA_(2)DS_(2)-VASc评分之间差异具有统计学意义(P=0.001),R_(2)CHA_(2)DS_(2)-VASc评分与CHA_(2)DS_(2)-VASc评分之间的NRI值为0.259(95%CI:0.166~0.352,P<0.001),IDI值为0.007(95%CI:0.005~0.010,P<0.001),R_(2)CHA_(2)DS_(2)-VASc评分在预测准确度和预测价值上稍优于CHA_(2)DS_(2)-VASc评分,但两种评分均不理想。结论:在预测AF合并HF患者的MACE风险时,R_(2)CHA_(2)DS_(2)-VASc评分相较于CHA_(2)DS_(2)-VASc评分准确度和预测价值稍好,但两种评分均不理想。 展开更多
关键词 心力衰竭 心房颤动 R_(2)CHA_(2)DS_(2)-VASc评分 CHA_(2)DS_(2)-VASc评分
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Link between caries,periodontitis,and pregnancy:The role of personalized oral hygiene 被引量:1
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作者 Melissa Martínez Nieto Martha Leticia De León Rodríguez +2 位作者 Francisco Javier Alcaraz Baturoni Alma Alicia Soto Chávez Sarah Monserrat Lomelí Martínez 《World Journal of Clinical Cases》 SCIE 2025年第6期51-57,共7页
Optimal health during pregnancy is crucial for ensuring the well-being of the mother and the developing fetus.This article is focused on the impact of oral health and the role of personalized oral hygiene management i... Optimal health during pregnancy is crucial for ensuring the well-being of the mother and the developing fetus.This article is focused on the impact of oral health and the role of personalized oral hygiene management in addressing prevalent dental issues among pregnant women,with particular emphasis on periodontal disease and dental caries.Despite the high prevalence of these dental problems and their association with obstetric complications such as pre-term birth and low birth weight,many pregnant women do not receive adequate dental care.This gap in care is often due to misconceptions about the safety of dental treat-ments during pregnancy and lack of awareness on the part of healthcare profes-sionals.Appreciations of the impacts of oral health and personalization of oral hygiene strategies such as tailored education and support,have proven effective in improving oral health in this population.Significant reductions in the incidence of caries and periodontal disease may be achieved by adapting care to the specific needs of each patient,thereby enhancing maternal and fetal health outcomes.Integration of personalized oral hygiene management into maternal health pro-grams and enhancement of ongoing education for pregnant women and healthcare professionals are essential steps in the reduction of pregnancy-related risks and improvement of maternal and neonatal well-being.Core Tip:In this article,we reviewed a recent study on the effects of personalized oral hygiene management on the oral health of pregnant women,as discussed in the article by Men et al.The study demonstrated that personalized oral hygiene interventions significantly improved oral health outcomes during pregnancy by reducing the prevalence of dental caries and periodontal disease.We emphasized the importance of individualized oral care programs that integrate education and tailored support,and we highlighted their significance in enhancing maternal and fetal health.This approach underscores the need for incorporating personalized oral hygiene management into routine prenatal care in order to optimize health outcomes.CONCLUSION This article emphasizes the critical role of personalized oral hygiene management in improving oral health during pregnancy.By tailoring oral care strategies to individual needs,significant improvements in dental health may be achieved,as evidenced by the reduced CAT scores observed in the experimental group in the study by Men et al[25].This personalized approach not only addresses common oral issues such as dental caries and periodontal disease but also underscores the broader implications for maternal and fetal health.Despite the positive results,there remains a gap in consistency in the application of oral health practices during pregnancy,partly due to misconceptions and lack of awareness among patients and healthcare providers.Future research should aim at validating these findings across diverse populations,investigating the impact of oral hygiene interventions at various stages of pregnancy,and evaluating their long-term effects on maternal and fetal health.Integrating personalized oral hygiene management into maternal health programs and promoting continuous education for pregnant women and healthcare professionals are essential steps toward enhancing overall health outcomes.By proactively managing oral health,the risks associated with pregnancy may be reduced while improving maternal and neonatal well-being. 展开更多
关键词 PREGNANCY Periodontal disease PERIODONTITIS Dental caries Oral hygiene
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基于IT2FBLS强化学习PID的MSWI过程炉膛温度控制
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作者 田昊 汤健 +3 位作者 夏恒 王天峥 余文 乔俊飞 《自动化学报》 北大核心 2025年第7期1626-1641,共16页
城市固废焚烧(MSWI)过程中固有的非线性、时变性和不确定性导致领域专家需要凭借经验通过高频率手动干预进行炉膛温度控制.针对上述问题,为模拟专家的自适应机制,提出基于强化学习的比例-积分-微分(PID)自整定控制策略,即采用共享机制区... 城市固废焚烧(MSWI)过程中固有的非线性、时变性和不确定性导致领域专家需要凭借经验通过高频率手动干预进行炉膛温度控制.针对上述问题,为模拟专家的自适应机制,提出基于强化学习的比例-积分-微分(PID)自整定控制策略,即采用共享机制区间II型模糊宽度学习系统(IT2FBLS)拟合Actor-critic网络(ACN)进行PID参数优化.首先,采用共享机制IT2FBLS拟合ACN以克服焚烧过程的不确定性、减少计算消耗和确保紧凑的网络结构;然后,利用基于时间差分误差的梯度下降法更新ACN参数以实现快速学习;最后,利用李雅普诺夫方法,证明Actor-critic算法的收敛性和控制过程的稳定性.通过MSWI过程的实际运行数据仿真验证了该方法的有效性. 展开更多
关键词 城市固废焚烧 炉膛温度控制 强化学习 区间Ⅱ型模糊宽度学习系统 Actor-critic网络 共享机制 PID参数优化
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单、双通道脊柱内镜治疗腰椎间盘突出症临床疗效的Meta分析
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作者 林劲华 杨裕豪 +4 位作者 林振 查丁胜 李镇宏 郑力恒 吴昊 《颈腰痛杂志》 2025年第1期106-115,共10页
目的通过Meta分析比较单、双通道(PELD、UBE)治疗腰椎间盘突出症(LDH)的疗效。方法计算机分别检索不同中英文数据库。检索时间为各数据库建库至2022年12月,收集关于UBE与PELD治疗LDH的临床对照试验。通过RevMan 5.4软件对提取出的数据进... 目的通过Meta分析比较单、双通道(PELD、UBE)治疗腰椎间盘突出症(LDH)的疗效。方法计算机分别检索不同中英文数据库。检索时间为各数据库建库至2022年12月,收集关于UBE与PELD治疗LDH的临床对照试验。通过RevMan 5.4软件对提取出的数据进行Meta分析。评价指标有:腰腿部疼痛视觉模拟评分(VAS)、Oswestry功能障碍指数(ODI)、改良MacNab标准评定、并发症、手术时长、术中出血量、住院时间和透视次数。结果最终纳入12篇文献,共纳入1089名患者,其中UBE组纳入536例患者,PEID组纳入553例患者。UBE组术后1~3个月腰痛VAS评分[WMD=0.21,95%CI(-0.14,0.29),P<0.01],术后1~3个月下肢痛VAS评分[WMD=0.12,95%CI(0.01,0.23),P=0.03],术后1周ODI[WMD=4.04,95%CI(0.73,7.34),P=0.02],术后1~3个月ODI[WMD=-0.71,95%CI(-1.36,-0.06),P=0.03],术后至少6个月的ODI[WMD=-0.69,95%CI(-1.25,-0.14),P=0.01],术后脑脊液漏[OR=2.96,95%CI(1.05,8.37),P=0.04],髓核残留[OR=0.25,95%CI(0.08,0.77),P=0.01],手术时长[WMD=22.06,95%CI(12.86,31.26),P<0.01],术中出血量[WMD=43.91,95%CI(24.70,63.12),P<0.01],术后住院时间[WMD=2.03,95%CI(0.82,3.24),P=0.001],其余纳入指标差异无统计学意义。结论UBE与PELD技术都是治疗LDH行之有效的微创术式,都值得在临床上推广,然而UBE技术需要克服学习曲线以减少并发症的发生。 展开更多
关键词 腰椎间盘突出症 单侧双通道内镜 经皮内镜腰椎间盘切除术 META分析 临床疗效 微创化
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