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肾上腺皮质腺癌的CT、MRI表现及病理特征

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中国CT和MRI杂志 2025年第1期23卷 125-127页

作者：戴玲玲柯俊苏州大学附属第一医院放射科江苏苏州215000

目的探讨肾上腺皮质腺癌的CT、MRI影像学特点及病理表现。方法回顾性分析7例经病理证实的肾上腺皮质腺癌的影像学资料,其中6例行CT检查,1例行MRI检查。结果 7例肿瘤均为单发,其中4例位于左侧,3例位于右侧。肿瘤最大径4.7~11.5(8.2±2.... 详细信息

目的探讨肾上腺皮质腺癌的CT、MRI影像学特点及病理表现。方法回顾性分析7例经病理证实的肾上腺皮质腺癌的影像学资料,其中6例行CT检查,1例行MRI检查。结果 7例肿瘤均为单发,其中4例位于左侧,3例位于右侧。肿瘤最大径4.7~11.5(8.2±2.9)cm,呈类圆形3例、不规则形4例。CT表现:平扫密度不均匀,伴有出血、坏死和钙化,CT值范围32~50(40,3±7.1) H U;增强扫描动脉期轻度强化2例,中度强化4例,CT值范围5 0~75(64.5±11.4)HU;门脉期CT值范围68~94(83.0±11.5)HU,呈渐进性强化。MRI表现:实性部分T1WI呈低信号,T2WI呈高信号,DWI呈高信号,增强扫描动脉期肿瘤呈中度不均匀强化,延迟期肿瘤强化程度下降缓慢、对比剂廓清延迟。5例肿瘤内见多条强化的迂曲血管影,周围组织器官受累和转移者共5例。结论 CT和MRI检查能较好地显示肾上腺皮质腺癌的影像学特点,结合患者的年龄及临床有助于该疾病的准确诊断。

关键词：肾上腺皮质腺癌计算机断层成像磁共振成像

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The Exact Limits and Improved Decay Estimates for All Order Derivatives of the Global Weak Solutions of n-Dimensional Incompressible Navier-Stokes Equations

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Acta Mathematicae Applicatae Sinica 2025年第1期41卷 27-83页

作者： ling-hai ZHANG Department of Mathematics Lehigh UniversityBethlehemPA 18015 USA

We couple together existing ideas,existing results,special structure and novel ideas to accomplish the exact limits and improved decay estimates with sharp rates for all order derivatives of the global weak solutions of the Cauchy problem for an n-dimensional incompressible Navier-Stokes *** also use the global smooth solution of the corresponding heat equation to approximate the global weak solutions of the incompressible Navier-Stokes equations.

关键词： the incompressible Navier-Stokes equations global smooth solution global weak solutions local smooth solutions all order derivatives special structure novel ideas primary decay estimates with sharp rates exact limits improved decay estimates with sharp rates influence on numerical simulations

游离氨调控对污泥高含固厌氧消化反应器性能的影响

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环境科学 2017年第2期38卷 679-687页

作者：戴晓虎何进严寒李宁丁月玲董滨戴翎翎同济大学环境科学与工程学院污染控制与资源化研究国家重点实验室上海200092

污泥高含固厌氧消化系统中,过高的游离氨(free ammonia nitrogen,FAN)浓度被认为是影响其产气性能的主要因素之一.通过降低pH和提高总氨氮(total ammonia nitrogen,TAN)浓度两种方法,考察了进料含固率为15%的中温半连续污泥高含固厌氧... 详细信息

污泥高含固厌氧消化系统中,过高的游离氨(free ammonia nitrogen,FAN)浓度被认为是影响其产气性能的主要因素之一.通过降低pH和提高总氨氮(total ammonia nitrogen,TAN)浓度两种方法,考察了进料含固率为15%的中温半连续污泥高含固厌氧消化反应器在这两种游离氨调控措施下的性能表现.结果表明,随着TAN的提高,FAN从(400±174)mg·L^(-1)提升至(526±25)mg·L^(-1),日产沼气量从(11.9±0.3)L·d-1降低到(10.3±0.2)L·d-1,挥发性固体(volatile solid,VS)降解率降低了33.7%;同时,当通过降低pH使得FAN从(330±99)mg·L^(-1)下降至(47±13)mg·L^(-1)时,日沼气产量也从(14.4±1.1)L·d-1下降到(10.8±0.3)L·d-1,VS降解率降低了26.9%,系统性能并没有随着FAN的下降而提升.随着pH调控的停止,游离氨浓度逐步回升至300 mg·L^(-1),系统性能也恢复至调控之前的水平,表明pH调控的过程产生了游离氨浓度控制之外的抑制性作用.最后,通过对细菌和古菌的多样性分析以及甲烷菌的定量PCR分析,可以发现两个反应器系统产气性能的变化都伴随着细菌种群结构的明显变化.污泥高含固厌氧消化系统中过高的FAN(>500 mg·L^(-1))使得降解蛋白的细菌的主要种群由Tepidimicrobium和Proteiniborus转变为Anaerobranca.而通过降低pH来控制游离氨浓度之后,一些糖类和蛋白质类发酵细菌的活性也受到影响,并导致这些物质水解效率的下降,进而由于产甲烷菌的基质供给量的不足而削弱系统的产气性能.

关键词：游离氨氨抑制脱水污泥厌氧消化高含固

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有机负荷对醋糟厌氧消化系统启动的影响

环境科学 2017年第3期38卷 1144-1150页

作者：戴晓虎于春晓李宁董滨戴翎翎同济大学环境科学与工程学院污染控制与资源化研究国家重点实验室上海200092

本研究通过醋糟的中温产甲烷潜力测试实验,考察了有机负荷对醋糟厌氧消化反应器启动的影响.并通过对不同有机负荷条件下的甲烷产量、液相组分的对比分析,结合热重、X射线衍射和红外光谱学方法进行差异表征,结果发现:1较低的有机负荷有... 详细信息

本研究通过醋糟的中温产甲烷潜力测试实验,考察了有机负荷对醋糟厌氧消化反应器启动的影响.并通过对不同有机负荷条件下的甲烷产量、液相组分的对比分析,结合热重、X射线衍射和红外光谱学方法进行差异表征,结果发现:1较低的有机负荷有利于缓解醋糟中有机物水解酸化过程中VFAs的积累和pH的下降,保证产甲烷过程的稳定进行.当接种物与基质VS比为1∶1[即有机负荷(以VS计)为1.78 g·(L·d)^(-1),pH=7.60]时的累积甲烷产量最高,达2 249.7 m L.随着有机负荷的提高,VFAs的累积浓度随之升高,使产甲烷过程受到不同程度的抑制并相继终止,且在接种物与基质VS比为1∶4时[即有机负荷为7.12 g·(L·d)^(-1),pH=5.52]实现了乙酸和乳酸的同步发酵(分别可达到8 000 mg·L^(-1)和2 650 mg·L^(-1)).2醋糟中木质纤维素类物质为短程有序的微晶结构或非晶结构,与富含纤维素类晶体结构物质的玉米秸秆等相比,其VS的降解率更高.醋糟中的木质素、纤维素、半纤维素的降解率随着有机负荷的降低而逐渐升高.

关键词：醋糟厌氧消化有机负荷热重红外光谱

Partial multi-label learning via label-specific feature corrections

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Science China(Information Sciences) 2025年第03期68卷 95-109页

作者： Jun-Yi HANG Min-ling ZHANG School of Computer Science and Engineering Southeast University Key Laboratory of Computer Network and Information Integration(Southeast University) Ministry of Education

Partial multi-label learning（PML） allows learning from rich-semantic objects with inaccurate annotations, where a set of candidate labels are assigned to each training example but only some of them are valid. Existing approaches rely on disambiguation to tackle the PML problem, which aims to correct noisy candidate labels by recovering the ground-truth labeling information ahead of prediction model induction. However, this dominant strategy might be suboptimal as it usually needs extra assumptions that cannot be fully satisfied in real-world scenarios. Instead of label correction, we investigate another strategy to tackle the PML problem, where the potential ambiguity in PML data is eliminated by correcting instance features in a label-specific manner. Accordingly, a simple yet effective approach named PASE, i.e., partial multi-label learning via label-specific feature corrections, is proposed. Under a meta-learning framework, PASElearns to exert label-specific feature corrections so that potential ambiguity specific to each class label can be eliminated and the desired prediction model can be induced on these corrected instance features with the provided candidate labels. Comprehensive experiments on a wide range of synthetic and real-world data sets validate the effectiveness of the proposed approach.

关键词： machine learning multi-label learning partial multi-label learning label-specific features feature correction

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Spatial differentiation of carbon emissions from energy consumption based on machine learning algorithm:A case study during 2015–2020 in Shaanxi,China

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Journal of Environmental Sciences 2025年第3期149卷 358-373页

作者： Hongye Cao ling Han Ming Liu Liangzhi Li China Jikan Research Institute of Engineering Investigations and Design Co.Ltd.Xi’an 710043China College of Geological Engineering and Geomatics Chang’an UniversityXi’an 710061China School of Land Engineering Chang’an UniversityXi’an 710064China Xi’an Key Laboratory of Territorial Spatial Information School of Land EngineeringChang’an UniversityXi’an 710064China Department of Geography and Environmental Management University of WaterlooWaterlooOntario N2L 3G1Canada

Carbon emissions resulting from energy consumption have become a pressing issue for governments *** estimation of carbon emissions using satellite remote sensing data has become a crucial research *** studies relied on statistical regression models that failed to capture the complex nonlinear relationships between carbon emissions and characteristic *** this study,we propose a machine learning algorithm for carbon emissions,a Bayesian optimized XGboost regression model,using multi-year energy carbon emission data and nighttime lights(NTL)remote sensing data from Shaanxi Province,*** results demonstrate that the XGboost algorithm outperforms linear regression and four other machine learning models,with an R^(2)of 0.906 and RMSE of *** observe an annual increase in carbon emissions,with high-emission counties primarily concentrated in northern and central Shaanxi Province,displaying a shift from discrete,sporadic points to contiguous,extended spatial *** autocorrelation clustering reveals predominantly high-high and low-low clustering patterns,with economically developed counties showing high-emission clustering and economically relatively backward counties displaying low-emission *** findings show that the use of NTL data and the XGboost algorithm can estimate and predict carbon emissionsmore accurately and provide a complementary reference for satellite remote sensing image data to serve carbon emission monitoring and *** research provides an important theoretical basis for formulating practical carbon emission reduction policies and contributes to the development of techniques for accurate carbon emission estimation using remote sensing data.

关键词： Machine learning Energy carbon emissions Nighttime light Spatial distribution

习语构式“V不C/了/得（N）”的概念整合层级性

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新疆大学学报（哲学社会科学版） 2020年第2期48卷 138-142页

作者：代玲玲安徽大学文学院

“V不C/了/得(N)”是带有一定评价或倾向性立场的规约性构式。根据其内部结合紧密度和外部整体功能变异性,它们的整合度呈现低中高三级,每一层级内部均存在级差。构式“V不C/了/得(N)”主要体现“因果关系距离”和“超常否定”两个认知... 详细信息

“V不C/了/得(N)”是带有一定评价或倾向性立场的规约性构式。根据其内部结合紧密度和外部整体功能变异性,它们的整合度呈现低中高三级,每一层级内部均存在级差。构式“V不C/了/得(N)”主要体现“因果关系距离”和“超常否定”两个认知语义范畴,动作行为的超常量和结果的偏离性之间的因果关系距离越近,整合度越高。这一构式的概念整合层级性和词汇化程度存在正比关系。

关键词： “V不C/了/得(N)” 概念整合因果关系超常量词汇化

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高温热水解对高含固污泥中磷的形态转化影响

中国环境科学 2018年第4期38卷 1391-1396页

作者：周思琦戴晓虎戴翎翎彭信子刘志刚同济大学环境科学与工程学院污染控制与资源化研究国家重点实验室上海200092

通过正交实验、单因素温度影响实验,利用SMT磷分级提取法研究了高温热水解后高含固污泥中磷的形态转化.结果表明,120℃~160℃的高温热水解可以将高含固污泥中14.80%以上的有机磷转化为无机磷,影响因素对无机磷/总磷的影响大小顺序为:热... 详细信息

通过正交实验、单因素温度影响实验,利用SMT磷分级提取法研究了高温热水解后高含固污泥中磷的形态转化.结果表明,120℃~160℃的高温热水解可以将高含固污泥中14.80%以上的有机磷转化为无机磷,影响因素对无机磷/总磷的影响大小顺序为:热水解温度>热水解时间>氧化剂含量>pH值,随着温度的升高,高含固污泥中无机磷/总磷也从79.13%增加至95.87%;当热水解温度为160℃、时间为40min时,高含固污泥中无机磷含量由原泥的18.30mg/g增至20.49mg/g,无机磷/总磷由80.83%增至96.97%.结果为实现污泥中磷的回收利用奠定基础,同时为"高温热水解+高含固厌氧消化"工艺的优化提供新思路.

关键词：高温热水解磷形态高含固污泥无机磷总磷

Mechanism of extracellular electron transport and reactive oxygen mediated Sb(Ⅲ)oxidation by Klebsiella aerogenes HC10

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Journal of Environmental Sciences 2025年第1期147卷 11-21页

作者： Qun Rong Chaolan Zhang Caiyuan ling Dingtian Lu Linjiang Jiang College of Resources Environment and Materials Guangxi UniversityNanning 530004China School of Environment and Life Science Nanning Normal UniversityNanning 530001China

Microbial oxidation and the mechanism of Sb(Ⅲ)are key governing elements in biogeochemical cycling.A novel Sb oxidizing bacterium,Klebsiella aerogenes HC10,was attracted early and revealed that extracellular metabolites were the main fractions driving Sb ***,linkages between the extracellular metabolite driven Sb oxidation process and mechanism remain ***,model phenolic and quinone compounds,i.e.,anthraquinone-2,6-disulfonate(AQDS)and hydroquinone(HYD),representing extracellular oxidants secreted by *** HC10,were chosen to further study the Sb(Ⅲ)oxidation mechanism.N_(2)purging and free radical quenching showed that oxygen-induced oxidation accounted for 36.78%of Sb(Ⅲ)in the metabolite reaction system,while hydroxyl free radicals(·OH)accounted for 15.52%.·OH and H_(2)O_(2)are the main driving factors for Sb *** quenching,methanol purification and electron paramagnetic resonance(EPR)analysis revealed that·OH,superoxide radical(O_(2)^(•-))and semiquinone(SQ-•)were reactive intermediates of the phenolic induced oxidation ***-induced ROS are one of the main oxidants in *** voltammetry(CV)showed that electron transfer of quinone also mediated Sb(Ⅲ)*** of Sb(V)was scavenged by the formation of the secondary Sb(V)-bearing mineral mopungite[NaSb(OH)6]in the incubation *** study demonstrates the microbial role of oxidation detoxification and mineralization of Sb and provides scientific references for the biochemical remediation of Sb-contaminated soil.

关键词： Antimonite oxidation Active oxygen Free radical Electron transfer AQDS