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社会化批注能否提升阅读理解水平？基于个体化和社会化批注对比的实验研究

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中国图书馆学报 2024年

作者：李武艾鹏亚姚琦 1.上海交通大学媒体与传播学院 2.南洋理工大学黄金辉传播与信息学院 3.华东师范大学心理与认知科学学院上海交通大学媒体与传播学院南洋理工大学黄金辉传播与信息学院华东师范大学心理与认知科学学院

社会化批注是用户开展社会化阅读的重要实践活动。借鉴计算机支持的协作学习框架和认知负荷理论，本研究采用实验法比较个体化和社会化批注对读者文本阅读理解水平的影响。实验结果显示，虽然社会化批注并未显著影响自我评估的阅读理解... 详细信息

社会化批注是用户开展社会化阅读的重要实践活动。借鉴计算机支持的协作学习框架和认知负荷理论，本研究采用实验法比较个体化和社会化批注对读者文本阅读理解水平的影响。实验结果显示，虽然社会化批注并未显著影响自我评估的阅读理解水平，但对专家打分的阅读理解水平产生了显著的正向影响。中介分析进一步表明，相对于个体化批注，社会化批注提高了读者的感知阅读支持，后者又提升了自我评估和专家打分的阅读理解水平；与个体化批注相比，社会化批注对读者的感知阅读干扰没有显著影响，而感知阅读干扰对通过两种测量方式获取的阅读理解水平也都没有显著的预测作用。理论层面，本研究有助于更加深入全面地洞察社会化批注对阅读理解水平的影响及其背后的作用机理。实践层面，研究结果对社会化阅读软件（尤其对其批注功能）的设计和完善具有重要的参考作用，也能启发阅读推广者思考如何引导读者利用社会化批注的积极作用提升对文本内容的理解和掌握。表5。参考文献52.

关键词：社会化阅读社会化批注个体化批注阅读理解计算机支持的协作学习框架认知负荷理论

Variation of karst spring discharge in the recent five decades as an indicator of global climate change: A case study at Shanxi, northern china

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Science china Earth Sciences 2005年第11期48卷 2001-2010页

作者： GUO Qinghai1, WANG Yanxin1, MA Teng1 & LI Luxiu2.1. School of Environmental Studies, china University of Geosciences, wuhan 430074, china 2. Office of Water Resource Management of Shanxi Province, Taiyuan 030001, china School of Environmental Studies China University of Geosciences Wuhan China Office of Water Resource Management of Shanxi Province Taiyuan China

Karst in Shanxi Province is representative of that in northern china, and karst water systems discharge in the form of springs that are among the most important sources for local water supply. Since the 1950s, attenuation has been the major trend of discharge variation of most karst springs at Shanxi. Based on the case study of 7 karst springs including Niangziguan, Xin’an, Guozhuang, Shentou, Jinci, Lancun, and Hongshan springs, the discharge variation process of karst springs was divided into natural fluctuation phase and anthropogenic impact phase. Discharge attenuation of the 7 karst springs was controlled mainly by climate and human activities, with their contributions being respectively about 60% and 40%. According to the dif-ference of the effect of climate and human activities for each spring, attenuation modes of spring discharge fall into three types: natural process dominated attenuation type, exploitation induced process dominated attenuation type, and mixed attenuation type. The total restored discharge variation of 7 karst springs matched well with the global air temperature change in 1956―2.00, clearly indicating the trend of global warming and aridity in the last several decades, and the analysis of discharge variation processes of karst springs can be used as a new tool for global change studies.

关键词： karst, Shanxi, spring discharge, attenuation, climate, human activity, global change

The tri-band high spectral resolution spectrometer with gratings in tandem for the charge-exchange recombination spectroscopy diagnostic system on HL-2. tokamak

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Plasma Science and Technology 2024年第6期26卷 103-110页

作者：刘亮余德良马倩何小斐 Maarten DE BOCK Manfred von HELLERMANN Michael WALSH 陈文锦何小雪魏彦玲张能李栋魏会领 the HL-2. Team Southwestern Institute of Physics Chengdu 610041People’s Republic of China College of Physics and Optoelectronic Technology Baoji University of Arts and SciencesBaoji 721000People’s Republic of China ITER Organization Route de Vinon-sur-VerdonCS 90046St.Paul Lez Durance Cedex 13067France Fusion Spectroscopy Markgraf-Albrecht Str.14Berlin 10711Germany

Charge-exchange(CX) recombination spectroscopy is a powerful tool monitoring ion temperature and plasma rotation with good temporal and spatial resolutions. A compact, new design for a high-throughput, tri-band high spectral resolution spectrometer has been developed for the charge-exchange recombination spectroscopy measurement on the HL-2. tokamak. The simultaneous measurements of He II(468.57 nm), C VI(52..1 nm), and Dα(656.1 nm accompanied by beam emission spectra) with an acquisition frequency up to 400 Hz are achieved by vertically binning the spectrum from each fiber in experiments. Initial results indicate that the system can provide radial profiles of not only ion temperature and rotation velocity,but also concentration of carbon. For the case of helium, the measurements for the ion temperature and rotation velocity are straightforward but the apparent concentration associated with the observed CX intensity is obviously too high. Modeling of the active He II CX feature including plume contributions needs to be carried out to extract the true helium *** spectrometer could become a prototype for the ITER charge-exchange recombination spectroscopy diagnostic and the pilot experiments, as presented here, demonstrate the possibility of impurity concentrations measurements based on the combined measurement of local beam emission and charge-exchange recombination spectroscopy spectra.

关键词： CXRS ion temperature plasma rotation impurity concentration

Chinese expert consensus on the clinical application of sodium-glucose cotransporter 2.inhibitors in patients with chronic kidney disease

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Chinese Medical Journal 2024年第11期137卷 1264-1266页

作者： The Expert Group of Chinese Expert Consensus on the Clinical Application of Sodium-glucose Cotransporter 2.Inhibitors in Patients with Chronic Kidney Disease Fan Fan Hou Chuanming Hao Min Zhang Chuanming Hao 不详 Department of Nephrology Nanfang HospitalSouthern Medical UniversityGuangzhouGuangdong 510515China Division of Nephrology Huashan HospitalFudan UniversityShanghai 200040China

The prevalence of chronic kidney disease(CKD)in china was 8.2.in 2.18-2.19.[1]CKD may progress to end-stage kidney disease(ESKD),necessitating kidney replacement treatment such as dialysis or kidney transplantation,[2.which imposes a substantial burden on both family and ***,patients with CKD have a high risk of comorbidities including cardiovascular diseases.[3]The risk of death rises as the estimated glomerularltration rate(eGFR)declines.[3]A substantial portion of CKD patients die,primarily from cardiovascular events,before reaching the stage requiring dialysis.[3]As such,delaying the progression of CKD and reducing cardiovascular events are key elements in patient *** recent years,important progress has been made in the cardiorenal protection of patients with ***cally,the advent of sodium-glucose cotransporter 2.SGLT2.inhibitors has provided a new and important approach for the treatment of CKD.

关键词： kidney patients dialysis

Seabed Classification Using BP Neural Network Based on GA

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Acta Oceanologica Sinica 2003年第4期22卷 523-531页

作者： Yang Fanlin1, Liu Jingnan2.1. GPS Engineering Research Center, wuhan University, wuhan 430079, {2.. 2. Presidential Secretariat, wuhan University, wuhan 430079, {2. GPS Engineering Research Center Wuhan University Wuhan 430079 China Presidential Secretariat Wuhan University Wuhan 430079 China

Side scan sonar imaging is one of the advanced methods for seabed study. In order to be utilized in other projects, such as ocean engineering, the image needs to be classified according to the distributions of different classes of seabed materials. In this paper, seabed image is classified according to BP neural network, and. Genetic Algorithm is adopted in train network in this paper. The feature vectors are average intensity, six statistics of texture and two dimensions of fractal. It considers not only the spatial correlation between different pixels, but also the terrain coarseness. The texture is denoted by the statistics of the co-occurrence matrix. Double Blanket algorithm is used to calculate dimension. Because a uniform fractal may not be sufficient to describe a seafloor, two dimensions are calculated respectively by the upper blanket and the lower blanket. However, in sonar image, fractal has directivity, i. e. there are different dimensions in different direction. Dimensions are different in acrosstrack and alongtrack, so the average of four directions is used to solve this problem. Finally, the real data verify the algorithm. In this paper, one hidden layer including six nodes is adopted. The BP network is rapidly and accurately convergent through GA. Correct classification rate is 92.5 % in the result.

关键词： BP network co-occurrence matrix fractal classification genetic algorithin

Trace element compositions of volcanic rocks from Yangba Formation, Bikou Group, Qinling, china: Implications for tectonics

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Chinese Science Bulletin 1999年第S2期44卷 203-204页

作者： DING Zhenju~(1,2. and LlU Congqiang~1 1. Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002. china 2. china University of Ceosciences, {2. 430074, china Institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China china University of Geosciences Wuhan 430074 China

THE Yangba Formation of Bikou Group is located in south Qinling, a famous orogenic belt separating Chinese continent into two parts: North china plate and Yangtze plate. The Yangba Formation comprises themafic and felsic volcanic rocks formed in an ancient seafloor environment during Proterozoric era. Thesuites of mafic and felsic volcanic rocks petrochemically are divided into tholeiite and calc-alkalinedacite, respectively, showing clearly characteristics of bimodal volcanic rock mainly with lithology andmajor element composition, and a lack of typical intermediate rocks. These indicate that the volcanicrocks of Yangba Formation were generated in rift tectonics setting. The tholeiites of Yangba Formation are similar in trace element compositions to Mid-ridge basalt,displaying a slight depletion to enrichment in light rare earth elements (LREEs) (La/Yb_n=0.6-1.4).slight fractionation between LREE (La/Sm_n=0.55-1.14) and HREE (Gd/Lu_n=1.09-1.50),

关键词： trace element volcanic rocks tectonics.

基于视频和BCE-YOLO模型的奶牛采食行为检测研究

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华南农业大学学报 2024年

作者：张立印张姬杨庆璐李玉道于镇伟田富洋于素芳 1.山东农业大学机械与电子工程学院 2.山东农业大学生命科学学院山东农业大学机械与电子工程学院山东农业大学生命科学学院

【目的】动物采食行为是一个重要的动物福利评价指标，本研究旨在解决复杂饲养环境下奶牛采食行为识别精度差、特征提取不充分的问题，实现对奶牛采食行为的自动监控。【方法】本文提出了一种基于改进BCE-YOLO模型的识别方法，该方法通... 详细信息

【目的】动物采食行为是一个重要的动物福利评价指标，本研究旨在解决复杂饲养环境下奶牛采食行为识别精度差、特征提取不充分的问题，实现对奶牛采食行为的自动监控。【方法】本文提出了一种基于改进BCE-YOLO模型的识别方法，该方法通过添加BiFormer、CoT、EMA 3个增强模块，提高YOLOv8模型特征提取的能力，进一步与优于Staple、SiameseRPN算法的Deep SORT算法结合，实现对奶牛采食时头部轨迹的跟踪。在奶牛采食过程的俯视和正视视频中提取102.8张图像，按照6：1比例分为训练集和测试集，构建为采食数据集。【结果】改进的BCE-YOLO模型在前方和上方拍摄的数据集上精确度分别为77.73%、76.32.，召回率分别为82.57%、86.33%，平均精度分别为83.70%、76.81%，相较于YOLOv8模型，模型整体性能提升6～8个百分点，Deep SORT算法相比于Staple、SiameseRPN算法，综合性能提高1～4个百分点，并且改进的BCE-YOLO模型与Deep SORT目标跟踪算法结合良好，能对奶牛采食行为进行准确跟踪且有效抑制奶牛ID（Identity document）的变更。【结论】本文提出的方法能有效解决复杂饲养环境下奶牛采食行为识别精度差、特征提取不充分的问题，为实现智能畜牧与精确养殖提供重要参考。

关键词：奶牛采食行为识别优化YOLOv8模型 Deep SORT

Evolutionary patterns of Productida (Brachiopoda) morphology during the Permian in South china

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Science china Earth Sciences 2008年第11期51卷 1589-1600页

作者： ZHANG Yang1 & HE WeiHong1,2.1 Faculty of Earth Sciences, china University of Geosciences, wuhan 430074, china 2.Key Laboratory of Biogeology and Environmental Geology of Ministry of Education, china University of Geosciences, wuhan 430074, china Faculty of Earth Sciences China University of Geosciences Wuhan China Key Laboratory of Biogeology and Environmental Geology of Ministry of Education China University of Geosciences Wuhan China

The evolutionary patterns of Productida (brachiopod) morphology throughout the Permian show that while the percentage proportion of Productida (brachiopod) with strongly concentric and radial ornamentation declined from the Cisuralian to the Guadalupian, and then increased towards the Changhsingian via Wuchiapingian, the percentage proportion of Productida (brachiopod) with fine concentric and radial ornamentation distinctly increased from the Cisuralian to the Guadalupian, slightly declined towards the Wuchiapingian, and then increased towards the Changhsingian. From the Cisuralian to the Changhsingian, the percentage proportion of brachiopods with spinose ornamentation shows a persistent declining trend. The shell size generally indicates a miniaturization trend at species level during the Wuchiapingian to Changhsingian (including the transitional bed). These evolutionary patterns of brachiopod ornamentation and size are possibly related to the anoxia, food shortage, sea-level fluctuation, and change of substrate in the Permian (including the Permian-Triassic transitional interval) in South china.

关键词： brachiopod ornamentation size Permian South china

Trace element geochemistry of the Lower Cambrian black rock series from northwestern Hunan, South china

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Progress in Natural Science:Materials International 2004年第1期14卷 65-71页

作者： PAN Jiayong 1,2. *, MA Dongsheng 1 and CAO Shuanglin 1,2. (1.The State Key Laboratory for Mineral Deposits Research, Nanjing University, Nanjing 2.0093, china 2. East china Institute of Technology, Fuzhou 344000, china) Nanjing Univ State Key Lab Mineral Deposit Res Nanjing 210093 Peoples R China E china Inst Technol Fuzhou 344000 Peoples R China

Samples of black rock series collected from the Lower Cambrian Niutitang Formation, northwestern Hunan Province, china, were analyzed for trace elements. The trace element geochemical characteristics of the ore layer (high enrichments of Ni, Mo, V, U, Cu, Pb, Zn, Cd, Tl and Ba; high U/Th ratios and LREE enriched patterns with positive Eu and Y anomalies) support the assumption that the Ni Mo polymetallic layer is of submarine hydrothermal origin. High field strength elements (HFSE) and lithophile elements such as Nb, Ta, Zr, Hf, Li, Be, Rb, Cs, Th and Sc are remarkably higher in the upper unit than those in the lower unit of the Niutitang Formation. These features may reflect that hydrothermal contributions were diminished, and terrigenous constituents were increased in the sediments of the upper unit of the Niutitang Formation.

关键词： black rock series Early Cambrian trace elements northwestern Hunan china