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辽宁警察学院学报 2020年第5期22卷 49-54页

作者：徐柏乐中国人民公安大学研究生院北京100038

当前邪教组织犯罪的新特点、新变化不仅给案件的讯问工作带来了诸多的新难点,还对案件讯问工作的策略、方法提出了新要求。在邪教案件中,讯问作为侦查取证的一项重要环节,不仅具有查明案情的重要作用,还应当兼顾教育犯罪嫌疑人、转化其... 详细信息

当前邪教组织犯罪的新特点、新变化不仅给案件的讯问工作带来了诸多的新难点,还对案件讯问工作的策略、方法提出了新要求。在邪教案件中,讯问作为侦查取证的一项重要环节,不仅具有查明案情的重要作用,还应当兼顾教育犯罪嫌疑人、转化其邪教思想的功能。我国《关于取缔邪教组织、防范和惩治邪教活动的决定》中也提出了关于邪教治理要坚持“教育与惩罚相结合”的原则。应将教育转化适用于邪教案件讯问过程中,在获取真实供述的同时,争取转化被蒙骗的邪教信徒,促进对邪教的长久治理。

关键词：邪教案件讯问工作教育转化

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小样本困境下的深度学习图像识别综述

软件学报 2022年第1期33卷 193-210页

作者：葛轶洲刘恒王言徐百乐周青申富饶通信信息控制和安全技术重点实验室浙江嘉兴314033 中国电子科技集团公司第三十六研究所浙江嘉兴314033 计算机软件新技术国家重点实验室(南京大学) 江苏南京210023

图像识别是图像研究领域的核心问题,解决图像识别问题对人脸识别、自动驾驶、机器人等各领域研究都有重要意义.目前广泛使用的基于深度神经网络的机器学习方法,已经在鸟类分类、人脸识别、日常物品分类等图像识别数据集上达到了超过人... 详细信息

图像识别是图像研究领域的核心问题,解决图像识别问题对人脸识别、自动驾驶、机器人等各领域研究都有重要意义.目前广泛使用的基于深度神经网络的机器学习方法,已经在鸟类分类、人脸识别、日常物品分类等图像识别数据集上达到了超过人类的水平,同时越来越多的工业界应用开始考虑基于深度神经网络的方法,以完成一系列图像识别业务.但是深度学习方法极度依赖大规模标注数据,这一缺陷极大地限制了深度学习方法在实际图像识别任务中的应用.针对这一问题,越来越多的研究者开始研究如何基于少量的图像识别标注样本来训练识别模型.为了更好地理解基于少量标注样本的图像识别问题,广泛地讨论了几种图像识别领域主流的少量标注学习方法,包括基于数据增强的方法、基于迁移学习的方法以及基于元学习的方法,通过讨论不同算法的流程以及核心思想,可以清晰地看到现有方法在解决少量标注的图像识别问题上的优点和不足.最后针对现有方法的局限性,指出了小样本图像识别未来的研究方向.

关键词：图像识别深度学习小样本学习数据增强迁移学习元学习

High-dose dexamethasone regulates microglial polarization via the GR/JAK1/STAT3 signaling pathway after traumatic brain injury

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Neural Regeneration Research 2025年第9期20卷 2611-2623页

作者： Mengshi Yang Miao bai Yuan Zhuang Shenghua Lu Qianqian Ge Hao Li Yu Deng Hongbin Wu Xiaojian xu Fei Niu Xinlong Dong Bin Zhang baiyun Liu Beijing Tiantan Hospital Capital Medical UniversityBeijingChina Department of Neurology The First Hospital of Tsinghua UniversityBeijingChina Department of Neurotrauma and Beijing Key Laboratory of Central Nervous System Injury Beijing Neurosurgical InstituteCapital Medical UniversityBeijingChina Department of Critical Care Medicine Beijing Tiantan HospitalCapital Medical UniversityBeijingChina Center for Nerve Injury and Repair Beijing Institute of Brain DisordersChina National Clinical Research Center for Neurological DiseasesBeijingChina

Although microglial polarization and neuroinflammation are crucial cellular responses after traumatic brain injury,the fundamental regulatory and functional mechanisms remain insufficiently *** potent anti-inflammato ry agents,the use of glucoco rticoids in traumatic brain injury is still controversial,and their regulatory effects on microglial polarization are not yet *** the present study,we sought to determine whether exacerbation of traumatic brain injury caused by high-dose dexamethasone is related to its regulatory effects on microglial polarization and its mechanisms of *** vitro cultured BV2 cells and primary microglia and a controlled cortical impact mouse model were used to investigate the effects of dexamethasone on microglial ***,dexamethasone,RU486(a glucocorticoid receptor antagonist),and ruxolitinib(a Janus kinase 1 antagonist)were ***-sequencing data obtained from a C57BL/6 mouse model of traumatic brain injury were used to identify potential targets of *** Morris water maze,quantitative reverse transcription-polymerase chain reaction,western blotting,immunofluorescence and confocal microscopy analysis,and TUNEL,Nissl,and Golgi staining were performed to investigate our ***-throughput sequencing results showed that arginase 1,a marker of M2 microglia,was significantly downregulated in the dexamethasone group compared with the traumatic brain injury group at3 days post-traumatic brain *** dexamethasone inhibited M1 and M2 microglia,with a more pronounced inhibitory effect on M2microglia in vitro and in *** receptor plays an indispensable role in microglial polarization after dexamethasone treatment following traumatic brain ***,glucocorticoid receptor activation increased the number of apoptotic cells and neuronal death,and also decreased the density of dendritic spines.A possible downstream receptor signaling mechanism is th

关键词： apoptosis BV2 microglia dexamethasone glucocorticoid receptor glucocorticoids innate immune system microglial polarization neuroinflammation primary microglia traumatic brain injury

Trends of alkaline phosphatase to prealbumin ratio in patients with hepatitis B linked to hepatocellular carcinoma development

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World Journal of Gastroenterology 2025年第2期31卷 42-51页

作者： Wen-Chong Zhen Jing Sun xue-Ting bai Qian Zhang Zi-Han Li Yi-Xin Zhang Rong-xuan xu Wei Wu Zhi-Han Yao Chun-Wen Pu Xiao-Feng Li School of Public Health Dalian Medical UniversityDalian 116044Liaoning ProvinceChina Graduate School Dalian Medical UniversityDalian 116044Liaoning ProvinceChina Dalian Public Health Clinical Center Dalian Municipal Research Institute for Public HealthDalian 116001Liaoning ProvinceChina Department of Epidemiology and Health Statistics Dalian Medical UniversityDalian 116044Liaoning ProvinceChina

BACKGROUND Chronic hepatitis B often progresses silently toward hepatocellular carcinoma(HCC),a leading cause of mortality *** detection of HCC is crucial,yet *** To investigate the role of dynamic changes in alkaline phosphatase to prealbumin ratio(APR)in hepatitis B progression to *** Data from 4843 patients with hepatitis B(January 2015 to January 2024)were *** incidence rates in males and females were compared using the log-rank *** were evaluated using Kaplan–Meier *** Linear Mixed-Effects Model was applied to track the fluctuation of APR levels over ***,Joint Modeling of Longitudinal and Survival data was employed to investigate the temporal relationship between APR and HCC *** The incidence of HCC was higher in *** ensure the model’s normality assumption,this study applied a logarithmic transformation to APR,yielding *** levels were higher in females(t=5.26,Ples(95%CI:1.653-2.431)and a 2.273-fold higher risk in females(95%CI:1.620-3.190).CONCLUSION Males are more prone to HCC,while females have higher APR *** no baseline APR link,rising APR indicates a higher HCC risk.

关键词： Alkaline phosphatase to prealbumin ratio Chronic hepatitis B patients Hepatocellular carcinoma Retrospective cohort study Linear Mixed-Effect Mode Joint Modelling of Longitudinal and Survival data

基于EDEM的花生联合收获机清选装置设计与试验

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农机化研究 2025年第1期47卷 99-105页

作者：白云李娟徐盛果青岛农业大学机电工程学院山东青岛266109 江苏深瑞光学技术有限公司南京210031

为进一步降低花生联合收获清选除杂过程中荚果损失率高、含杂率高等问题,重点研究了花生混合物(花生荚果—茎秆—土杂)基本物理参数和悬浮特性,创新提出了一种风筛组合式花生清选装置。该振动筛上筛采取锯齿式结构,下筛采取孔式结构,增... 详细信息

为进一步降低花生联合收获清选除杂过程中荚果损失率高、含杂率高等问题,重点研究了花生混合物(花生荚果—茎秆—土杂)基本物理参数和悬浮特性,创新提出了一种风筛组合式花生清选装置。该振动筛上筛采取锯齿式结构,下筛采取孔式结构,增加了花生混合物运动距离,提高了花生混合物清选效率。为确定振动筛最佳工作参数,结合EDEM仿真软件,建立了花生荚果—茎秆—土杂离散元模型,系统分析了振动筛往复作业过程中花生混合物的运动轨迹,并以振动筛振幅、频率和倾角为试验因素,以损失率和含杂率为试验指标进行试验优化分析,通过Design Expert 10试验分析软件Optimization,对试验结果进行优化。结果表明:在振动筛最佳工作参数下,即振幅为5.4 mm、频率为24 Hz、倾角为8°时,花生混合物损失率为1.57%,含杂率为1.19%。

关键词：花生清选除杂 EDEM 试验分析

Protonated-amino-functionalized bamboo hydrochar for efficient removal of hexavalent chromium and methyl orange

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Progress in Natural Science:Materials International 2023年第4期33卷 501-507页

作者： Zi-le Chen Huan xu Li-Qun bai Yan-Long Feng Bing Li College of Chemistry and Materials Engineering Zhejiang A&F University

Hydrochar has great potential for wastewater treatment and the functional modification can significantly improve the ability of hydrochar to remove pollutants. Herein, a novel protonated amino-modified bamboo hydrochar(PAHC) was synthesized by the reaction of bamboo hydrochar first with acryloyl chloride, then with amine and finally with hydrochloric acid, and employed to adsorb methyl orange(MO) and Cr(Ⅵ). The PAHC was observed by BET, SEM-EDX, FTIR, elemental analysis, and zeta potential to monitor its textural properties before and after adsorption. The amino groups were effectively grafted onto the hydrochar by the Aza-Michael addition reaction through characterization. Adsorption results showed the PAHC possessed high MO/Cr(Ⅵ) adsorption amounts(515.35/523.57 mg g-1at 298 K) because the introduction of protonated amine was pivotal in eliminating anionic pollutants by electrostatic interaction. The Langmuir/Freundlich model can well describe MO/Cr(Ⅵ)adsorption, which proves the removal process belongs to MO monolayer/Cr(Ⅵ) multilayer adsorption. The PAHC also exhibited a good regeneration performance. These results indicate the PAHC is a green and efficient adsorbent with potential application in wastewater treatment.

关键词： Methyl orange Cr(VI) Hydrochar Adsorption Modification

Late Holocene glacier variations indicated by theδ18O of ice core enclosed gaseous oxygen in the central Tibetan Plateau

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Journal of Mountain Science 2023年第2期20卷 325-337页

作者： LI Jiu-le xu bai-qing WANG Ning-lian YAO Ping xu Xiang-ke Institute of Tibetan Plateau Research Chinese Academy of SciencesBeijing 100101China State Key Laboratory of Tibetan Plateau Earth System Environment and Resources(TPESER)Institute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing 100101China CAS Center for Excellence in Tibetan Plateau Earth Sciences Chinese Academy of SciencesBeijing 100101China College of Urban and Environmental Sciences Northwest UniversityXi’an710069China

Theδ18O of ice core enclosed gaseous oxygen(δ18Obub)has been widely used for climate reconstruction in polar ***,less is known about its climatic implication in the mountainous glaciers as the lack of continuous ***,we present a long-term,continuousδ18Obub record from the Tanggula glacier in the central Tibetan Plateau(TP).Based on comparisons of its variation with regional climate and glacier changes,we found that there was a good correlation between the variation of theδ18Obub in this alpine ice core and the accumulation and melting of this *** more developed the firn layer on glacier surface,the more positive theδ***,the more intense the glacier melting,the more negative theδ*** with the chronology of ice core enclosed gases,the glacier variations since the late Holocene in the central TP were *** result showed that there were four accumulation and three deficit periods of glaciers in this *** strongest glacier accumulation period was 1610-300 B.C.,which corresponds to the *** most significant melting period was the last 100 years,which corresponds to the recent global *** Medieval Warm Period was relatively significant in the central ***,during the Little Ice Age,there was no significant glacier accumulation in the central TP,and even short deficit events *** of the late Holocene glacier variation in the central TP with glacier and climate variations in the TP and the Northern Hemisphere showed that it was closely related to the North Atlantic Oscillation.

关键词： Ice core air bubble Stable isotope ratio Gaseous oxygen Glacier variation Late Holocene Tibetan Plateau

Theoretical analyses on hydrodynamic instability in narrow deep river with variable curvature

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Applied Mathematics and Mechanics(English Edition) 2015年第9期36卷 1147-1168页

作者： Haijue xu Yuchuan bai State Key Laboratory of Hydraulic Engineering Simulation and Safety Tianjin University Institute for Sedimentation on River and Coastal Engineering Tianjin University

Bending river is the most common river type in nature, and it is also a typical example for river evolution. The transform of the flow pattern can affect the development of the riverbed form. In return, the variation in the riverbed form can affect the hydrodynamic characteristics of the flow, thereby leading to the continuous evolution of the bending river. Based on this, a theoretical model for the bending river is established. The hydrodynamic instability characteristics of the laminar flow in the channel with a variable curvature, a typical and the variations of some parameters such wave frequency are also discussed. model as the meandering river, are studied, as the curvature, the wave number, and the

关键词： bending river hydrodynamic stability self-adaptability nonlinear riverdynamics

Magnetic and electrical transport study of the intrinsic magnetic topological insulator MnBi_(2)Te_(4)with Ge doping

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Frontiers of physics 2024年第3期19卷 51-59页

作者： Qingwang bai Mingxiang xu School of Physics Southeast UniversityNanjing 211189China

As an intrinsic magnetic topological insulator with magnetic order and non-trivial topological structure,MnBi_(2)Te_(4)is an ideal material for studying exotic topological states such as quantum anomalous Hall effect and topological axion insulating ***,we carry out magnetic and electrical transport measurements on(Mn1–xGex)Bi_(2)Te_(4)(x=0,0.15,0.30,0.45,0.60,and 0.75)single *** is found that with increasing x,the dilution of magnetic moments gradually weakens the antiferromagnetic exchange ***,Ge doping reduces the critical field of ferromagnetic ordering,which may provide a possible way to implement the quantum anomalous Hall effect at lower magnetic *** transport measurements suggest that electrons are the dominant charge carriers,and the carrier density increases with the Ge doping ***,the Kondo effect is observed in the samples with x=0.45,0.60,and *** results suggest that doping germanium is a viable way to tune the magnetic and electrical transport properties of MnBi_(2)Te_(4),opening up the possibility of future applications in magnetic topological insulators.

关键词： MnBi_(2)Te_(4) intrinsic magnetic topological insulator transition points Kondo effect