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An Approach for Human Posture Recognition Based on the Fusion PSE-CNN-BiGRU Model

Computer Modeling in Engineering & Sciences 2024年第7期140卷 385-408页

作者： Xianghong Cao Xinyu Wang Xin Geng donghui wu Houru An School of Building and Environment Engineering Zhengzhou University of Light IndustryZhengzhou450000China

This study proposes a pose estimation-convolutional neural network-bidirectional gated recurrent unit(PSECNN-BiGRU)fusion model for human posture recognition to address low accuracy issues in abnormal posture recognition due to the loss of some feature information and the deterioration of comprehensive performance in model detection in complex home ***,the deep convolutional network is integrated with the Mediapipe framework to extract high-precision,multi-dimensional information from the key points of the human skeleton,thereby obtaining a human posture feature ***,a double-layer BiGRU algorithm is utilized to extract multi-layer,bidirectional temporal features from the human posture feature set,and a CNN network with an exponential linear unit(ELU)activation function is adopted to perform deep convolution of the feature map to extract the spatial feature of the human ***,a squeeze and excitation networks(SENet)module is introduced to adaptively learn the importance weights of each channel,enhancing the network’s focus on important ***,comparative experiments are performed on available datasets,including the public human activity recognition using smartphone dataset(UCIHAR),the public human activity recognition 70 plus dataset(HAR70PLUS),and the independently developed home abnormal behavior recognition dataset(HABRD)created by the authors’*** results show that the average accuracy of the proposed PSE-CNN-BiGRU fusion model for human posture recognition is 99.56%,89.42%,and 98.90%,respectively,which are 5.24%,5.83%,and 3.19%higher than the average accuracy of the five models proposed in the comparative literature,including CNN,GRU,and *** F1-score for abnormal posture recognition reaches 98.84%(heartache),97.18%(fall),99.6%(bellyache),and 98.27%(climbing)on the self-builtHABRDdataset,thus verifying the effectiveness,generalization,and robustness of the proposed model in enhancing human posture rec

关键词： Posture recognition mediapipe BiGRU CNN ELU attention

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No tillage increases soil microarthropod(Acari and Collembola)abundance at the global scale

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Soil Ecology Letters 2024年第2期6卷 5-19页

作者： Yulin Liu Lihong Song donghui wu Zihan Ai Qian Xu Xin Sun Liang Chang State Key Laboratory of Black Soil Conservation and Utilization Northeast Institute of Geography and AgroecologyChinese Academy of SciencesChangchun130102China University of Chinese Academy of Sciences Beijing100049China College of Agriculture Guizhou UniversityGuiyang550025China Key Laboratory of Urban Environment and Health Ningbo Observation and Research StationFujian Key Laboratory of Watershed EcologyInstitute of Urban EnvironmentChinese Academy of SciencesXiamen361021China Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control CAS Haixi Industrial Technology Innovation Center in BeilunNingbo315830China

Conservation tillage increases soil microarthropod abundance at the global *** effect of conservative tillage on microarthropods is soil *** positive effect of conservation tillage is particularly evident in nutrient-poor soil *** temperate humid regions,however,this positive effect of conservation tillage is *** effect of conservative tillage on microarthropods varies with fauna group and climate regions.

关键词： no tillage soil microarthropod Acari Collembola meta-analysis

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结合INQ和TOPSIS法对我国市售代餐食品的营养价值评价

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食品工业 2024年第5期45卷 336-340页

作者：吴东慧广东省汕头市质量计量监督检测所汕头515000

随着肥胖及肥胖并发症越来越受到重视,具有减肥功效的代餐食品逐渐成为消费热点。为调查我国市售代餐食品营养现状,筛选50种代餐食品进行数据收集和分析。通过计算核心营养素的营养质量指数(INQ),结合熵权TOPSIS法(优劣解距离法),依据... 详细信息

随着肥胖及肥胖并发症越来越受到重视,具有减肥功效的代餐食品逐渐成为消费热点。为调查我国市售代餐食品营养现状,筛选50种代餐食品进行数据收集和分析。通过计算核心营养素的营养质量指数(INQ),结合熵权TOPSIS法(优劣解距离法),依据《中国居民膳食营养素参考摄入量(2023版)》和团体标准T/CNSS 002—2019《代餐食品》的指标要求,对数据进行处理分析。所有样品均未能达到膳食能量需要量(EER),存在产能营养素产能配比不均、脂肪含量普遍偏低、钠元素含量普遍较高,蛋白质含量个体差异较大等问题,整体体现出营养不均衡和营养评价不高的现状。因此,市售代餐食品不能作为长期单一食物来源,在日常饮食中应注意平衡膳食,搭配其他食物食用。

关键词：代餐食品营养价值营养质量指数(INQ) TOPSIS

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越冬动物肠道微生物多样性及功能研究进展

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生物多样性 2024年第3期32卷 151-163页

作者：郝操吴东辉莫凌梓徐国良广州大学地理科学与遥感学院广东省农村水环境面源污染综合治理工程技术研究中心广州510006 东北师范大学环境学院国家环境保护湿地生态与植被恢复重点实验室长春130117 中国科学院东北地理与农业生态研究所湿地生态与环境重点实验室长春130102

越冬是全球温带和寒带地区动物生活史和演化过程的重要阶段,顺利越冬对于动物种群的繁衍与维持至关重要。肠道微生物与宿主长期共同进化并形成复杂的共生关系,在动物生长发育、健康调控及恶劣环境适应等方面发挥着重要作用。越冬动物不... 详细信息

越冬是全球温带和寒带地区动物生活史和演化过程的重要阶段,顺利越冬对于动物种群的繁衍与维持至关重要。肠道微生物与宿主长期共同进化并形成复杂的共生关系,在动物生长发育、健康调控及恶劣环境适应等方面发挥着重要作用。越冬动物不仅在形态、生理和行为方面发生适应性变化,其肠道微生物也发生改变,这对宿主适应低温不可或缺。近些年越冬动物肠道微生物工作日渐受到重视,鉴于肠道微生物的重要意义,本文总结和评述了4个方面内容:(1)越冬动物肠道微生物领域的研究现状。该领域发文量近年来增长快速,冬眠动物肠道微生物研究最多且更为深入。肠道微生物多样性、影响因素和群落构建机制以及肠道微生物对动物越冬的作用机制是该领域的研究热点;(2)越冬动物肠道微生物群落多样性、组成及其功能基因的变化。冬季动物肠道细菌群落以拟杆菌门、厚壁菌门和变形菌门为主,且多样性较夏季更低。冬眠动物肠道细菌群落的功能基因以脂肪代谢为主;(3)影响冬季动物肠道微生物群落的主要因素。肠道微生物群落与越冬宿主肠道形态和生理、物种类别、食性、越冬策略及外界环境时空和气候变化密切联系;(4)肠道微生物在动物越冬方面发挥的重要功能。肠道微生物参与宿主营养获取和能量代谢、调节宿主产热、影响宿主抗冻性及免疫力。本研究可增加人们对非生长季动物肠道微生物多样性维持及其生态功能的认识,并帮助深入思考肠道微生物及其与宿主互作机制在调控动物适应环境变化方面的潜在影响。

关键词：冬眠滞育肠道菌群宿主–微生物互作冬季生物多样性冷适应

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食品中二氧化硫残留现状和检测方法研究进展

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现代食品 2024年第13期30卷 188-191页

作者：吴东慧林榛许丹鹏广东省汕头市质量计量监督检测所广东汕头515041

二氧化硫及其盐类因具有漂白性、防腐性和抗氧化性等,被广泛用于食品加工过程中。但由于过度使用等,食品中二氧化硫残留量超过国家标准限量值的问题日益严重,其中蔬菜制品、水果制品等食品种类中的残留问题尤为突出。本文综述了食品中... 详细信息

二氧化硫及其盐类因具有漂白性、防腐性和抗氧化性等,被广泛用于食品加工过程中。但由于过度使用等,食品中二氧化硫残留量超过国家标准限量值的问题日益严重,其中蔬菜制品、水果制品等食品种类中的残留问题尤为突出。本文综述了食品中二氧化硫残留现状和国内外报道的检测技术,并比较各种检测方法的优缺点及应用前景,以期为建立科学、高效的二氧化硫残留量控制体系提供参考。

关键词：二氧化硫残留量检测方法食品安全

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Ecology of testate amoebae and their potential use as palaeohydrologic indicators from peatland in Sanjiang Plain, Northeast China

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Frontiers of Earth Science 2014年第4期8卷 564-572页

作者： Lihong SONG Hongkai LI Kehong WANG donghui wu Haitao wu Key Laboratory of Wetland Ecology and Environment Northeast Institute of Geography and Agroecology Chinese Academy of Sciences Changchun 130102 China University of Chinese Academy of Sciences Beijing 100049 China Institute for Peat and Mire Research Northeast Normal University Changchun 130024 China

Testate amoebae are sensitive indicators of substrate moisture in peaflands. Over the last decades, they have been studied to reconstruct hydrological changes since the Holocene. However, these studies have been geographically restricted to North America and Europe. We conducted the first investigation of testate amoebae on the largest continental fresh water wetland in the Sanjiang Plain, China. The objectives of this study were to provide baseline data on the ecology of testate amoebae in the peatlands of Northeast China and to assess the potential of using them as environmental indicators in this ecosystem. We examined modem testate amoeba assemblages and species-environmental relationships at 46 microsites within 5 waterlogged depressions. The environmental parameters measured included： depth to water table, pH, and loss on ignition. The results showed that the dominant species were Trinema complanatum type, Euglypha rotunda type, Euglypha strigosa type, and Centropyxis cassis type. Redundancy analysis demonstrates that water table depth has the most important effect on testate amoeba assemblages, explaining 16.7% （p=0.002） of the total variance, pH was not a statistically significant factor for testate amoeba assemblages. Weighted averaging and weighted averaging partial least squares models were used to build transfer functions for depth to water table. The best performing transfer function was generated by the weighted averaging partial least squares model with an r^2LOSO of 0.62 and RMSEPLoso of 6.96 era. Results indicate that testate amoebae in waterlogged depression peatland have the potential to be used as indicators for hydrological changes and for palaeohydrologic reconstructions in the Sanjiang Plain.

关键词： palaeoecology peatland testate amoebae,transfer function Sanjiang Wetland Northeast China

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Fluorescence immunoassay based on alkaline phosphatase-induced in situ generation of fluorescent non-conjugated polymer dots

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Chinese Chemical Letters 2023年第3期34卷 231-235页

作者： donghui wu Qilin Zhao Jian Sun Xiurong Yang State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China School of Applied of Chemistry and Engineering University of Science and Technology of ChinaHefei 230026China

Alkaline phosphatase(ALP) activity assay is not only significant to the clinical diagnosis of some related disease, but also momentous to the construction of ALP-based enzyme-linked immunosorbent assay(ELISA). Herein, for the first time, we have discovered that ascorbic acid(AA) can specially react with N-methylethylenediamine(N-MEDA) to generate fluorescent non-conjugated polymer dots(NCPDs) under mild conditions. On the basis of the AA-responsive emission and ALP-catalyzed hydrolysis of ascorbic acid 2-phosphate(AA2P) to AA, we have exploited a fluorometric ALP activity assay with high sensitivity and selectivity. Furthermore, by means of conventional ALP-based ELISA platform, a conceptual fluorescent ELISA has been constructed and applied in the potential clinical diagnosis, during which cardiac troponin I(cTnI), a well-established biomarker of acute myocardial infarction, has been chosen as the model target. We envision that such original fluorescent NCPDs generation-enabled ELISA could become a versatile tool in biochemical sensing and medical diagnosis in the future.

关键词： Alkaline phosphatase Non-conjugated polymer dots Fluorescent sensor Fluorescent ELISA Cardiac troponin I

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Co-occurrence Patterns of Above-ground and Below-ground Mite Communities in Farmland of Sanjiang Plain, Northeast China

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Chinese Geographical Science 2014年第3期24卷 339-347页

作者： LIN Lin GAO Meixiang LIU Dong ZHANG Xueping wu Haitao wu donghui Key Laboratory of Remote Sensing Monitoring of Geographic Environment College of Heilongjiang ProvinceHarbin Normal University Northeast Institute of Geography and Agroecology Chinese Academy of Sciences

One of the fundamental questions in community ecology is whether communities are random or formed by deterministic mechanisms. Although many efforts have been made to verify non-randomness in community structure, little is known with regard to co-occurrence patterns in above-ground and below-ground communities. In this paper, we used a null model to test non-randomness in the structure of the above-ground and below-ground mite communities in farmland of the Sanjiang Plain, Northeast China. Then, we used four tests for non-randomness to recognize species pairs that would be demonstrated as significantly aggregated or segregated co-occurrences of the above-ground and below-ground mite communities. The pattern of the above-ground mite commu- nity was significantly non-random in October, suggesting species segregation and hence interspecific competition. Additionally, species co-occurrence patterns did not differ from randomness in the above-ground mite community in August or in below-ground mite com- munities in August and October. Only one significant species pair was detected in the above-ground mite community in August, while no significant species pairs were recognized in the above-ground mite community in October or in the below-ground mite communities in August and October. The results indicate that non-randomness and significant species pairs may not be the general rule in the above-ground and below-ground mite communities in farmland of the Sanjiang Plain at the fine scale.

关键词： above-ground mite below-ground mite mite communities co-occurrence patterns interspecific competition species pairassociations

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Relative Contributions of Spatial and Environmental Processes and Biotic Interactions in a Soil Collembolan Community

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Chinese Geographical Science 2015年第5期25卷 582-590页

作者： SHA Di GAO Meixiang SUN Xin wu donghui ZHANG Xueping Key Laboratory of Remote Sensing Monitoring of Geographic Environment College of Heilongjiang Province Harbin Normal University College of Geographical Science Harbin Normal University Key Laboratory of Wetland Ecology and Environment Northeast Institute of Geography and Agroecology Chinese Academy of Sciences

Understanding the underlying processes of how communities are structured remains a central question in community ecology. However, the mechanisms of the soil animal community are still unclear, especially for communities on a small scale. To evaluate the relative roles of biotic interactions and environmental and spatial processes in a soil collembolan community, a field experiment was carried out on a small scale(50 m) in the farmland ecosystem of the Sanjiang Plain, Northeast China. In August and October, 2011, we took 100 samples each month in a 50 m × 50 m plot using a spatially delimited sampling design. Variation partitioning was used to quantify the relative contributions of the spatial and environmental variables. A null model was selected to test for the non-randomness pattern of species co-occurrence and body size in assemblages of collembolans and to test whether the pattern observed was the result of environmental or biotic processes that structured the community on a small scale. The results showed that large variance was accounted for by spatial variables(18.99% in August and 21.83% in October, both were significant). There were relatively lower effects of environmental variation(3.56% in August and 1.45% in October, neither was significant), while the soil water content, soil p H and soybean height explained a significant portion of the variance that was observed in the spatial pattern of the collembolan community. Furthermore, the null model revealed more co-occurrence than expected by chance, suggesting that collembolan communities had a non-random co-occurrence pattern in both August and October. Additionally, environmental niche overlap and the body size ratio of co-occurrence showed that interspecific competition was not influential in collembolan community structuring. Considering all of the results together, the contributions of spatial and environmental processes were stronger than biotic interactions in the small-scale structuring of a soil c

关键词： spatial process environmental filtering biotic interactions variation partitioning small scale collembolan community

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伴牙源性上颌窦炎患牙拔除后行上颌窦底提升术种植修复的效果评价

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口腔疾病防治 2024年第3期32卷 202-208页

作者：朱韵莹刘芸徐婷刘珍珍曹少萍王张嵩武东辉广州市海珠区口腔医院广东广州510220

目的探讨伴有牙源性上颌窦炎(odontogenic maxillary sinusitis,OMS)患牙拔除后因骨量不足行上颌窦底提升术及种植修复的临床效果,为临床提供参考。方法本研究已通过单位伦理委员会审查批准,并获得患者知情同意。上颌后牙区患牙无保留... 详细信息

目的探讨伴有牙源性上颌窦炎(odontogenic maxillary sinusitis,OMS)患牙拔除后因骨量不足行上颌窦底提升术及种植修复的临床效果,为临床提供参考。方法本研究已通过单位伦理委员会审查批准,并获得患者知情同意。上颌后牙区患牙无保留价值且确诊为OMS,拔牙后6~8个月骨高度不足行上颌窦底提升术及同期种植45例作为研究组。同期随机纳入上颌后牙区患牙无保留价值但未诊断为OMS,拔牙后6~8个月因种植区域骨高度不足行上颌窦底提升术及同期种植48例作为对照组。研究组中部分上颌窦底骨质不连续及上颌窦底剩余牙槽骨高度0.05)。结论伴OMS的患牙拔除后,上颌窦炎症减退、缺牙区骨质高度和密度得到一定程度的恢复,通过上颌窦底提升手术及种植修复,可以达到与非OMS患牙拔除后上颌窦底提升术及种植修复同样的效果。

关键词：牙源性上颌窦炎拔牙术侧壁开窗上颌窦底提升术穿嵴顶上颌窦底提升术种植修复上颌窦黏膜厚度上颌窦内成骨高度种植体尖端成骨高度种植体边缘骨吸收

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