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2020年景洪市基诺族20~80岁居民食物摄入与慢性病关系

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卫生研究 2024年第1期53卷 30-41页

作者：赵江闵向东陈留萍张楚杨万龙张强汤钦岚刘志涛云南省疾病预防控制中心昆明650022 西双版纳傣族自治州疾病预防控制中心景洪666100 云南中医药大学第二附属医院昆明650032

目的分析云南省基诺族居民食物摄入与慢性病的关系。方法于2020年采用多阶段分层整群抽样的方法,在云南省基诺族集聚地景洪市抽取12个居(村)民委员会240户家庭392名20~80岁基诺族居民(男性135人,女性257人;20~49岁140人,50~59岁136人,60... 详细信息

目的分析云南省基诺族居民食物摄入与慢性病的关系。方法于2020年采用多阶段分层整群抽样的方法,在云南省基诺族集聚地景洪市抽取12个居(村)民委员会240户家庭392名20~80岁基诺族居民(男性135人,女性257人;20~49岁140人,50~59岁136人,60~80岁116人),采用食物频率法和问卷调查获得基诺族居民过去12个月膳食结构和超重与肥胖、糖尿病与血脂异常的患病情况,采用非条件Logistic回归分析食物摄入与慢性病的关系。结果2020年云南省景洪市基诺族成年居民超重/肥胖、高血压、糖尿病、血脂异常检出率分别为38.8%(n=152)、19.1%(n=75)、3.6%(n=14)和26.3%(n=103)。吃过面类及其制品方便面(OR=1.677,95%CI 1.028~2.736)、豆类腐乳(OR=3.056,95%CI 1.853~5.038)、水产品草鱼(OR=2.245,95%CI 1.270~3.971)、小吃/零食花生(OR=1.975,95%CI 1.162~3.355)的20岁及以上基诺族居民较未吃过的更易发生超重与肥胖,吃过小吃/零食面包(OR=0.322,95%CI 0.190~0.545)较未吃过的更不易发生超重/肥胖。吃过其他谷类及制品如荞麦(OR=7.029,95%CI 1.494~33.070)的较未吃过的更易发生糖尿病,吃过甘蓝类蔬菜(如菜花/甘蓝)(OR=0.155,95%CI 0.034~0.708)、仁果类水果(如苹果/梨)(OR=0.227,95%CI 0.069~0.743)较未吃过的更不易发生糖尿病。吃过熟制其他畜禽肉类[驴肉/马肉(OR=9.676,95%CI 1.418~66.027)]较未吃过的更易发生血脂异常,吃过根块类蔬菜(如萝卜/藕)(OR=0.405,95%CI 0.204~0.803)、动物性食物熟制猪肉(OR=0.482,95%CI 0.263~0.885)、小吃/零食面包(OR=0.590,95%CI 0.357~0.974)和话梅(OR=0.173,95%CI 0.038~0.793)较未吃过的更不易发生血脂异常。结论景洪市20~80岁基诺族居民超重/肥胖与进食面类及其制品(方便面)、豆类(腐乳)、水产品(草鱼)、小吃/零食(花生)正相关,与进食小吃/零食(面包)负相关;糖尿病与进食其他谷类及制品呈正相关,与进食甘蓝类蔬菜、仁果类水果负相关;血脂异常与进食熟制(其他畜禽肉类)正相关,与进食根块类蔬菜、动物性食物(熟制猪肉)、小吃/零食(面包和话梅)负相关。

关键词：基诺族膳食摄入食物频率法慢性病影响因素

11R22.5全钢载重子午线轮胎胎圈轮廓设计

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橡胶工业 2024年第10期71卷 766-771页

作者：战琪轩于慧胡鸿许美华高建刚杨万龙雄鹰轮胎集团有限公司山东青岛266000

分析全钢载重子午线轮胎胎圈损坏问题,以轻量化11R22.5全钢载重子午线轮胎胎圈为例,设计轮胎胎圈仿生轮廓。该轮廓可以使胎圈与轮辋装配更加贴合,为轮胎负载提供支撑,还可以将胎体反包端点锚定,使胎圈损坏几率减小,有效提高轮胎耐久性... 详细信息

分析全钢载重子午线轮胎胎圈损坏问题,以轻量化11R22.5全钢载重子午线轮胎胎圈为例,设计轮胎胎圈仿生轮廓。该轮廓可以使胎圈与轮辋装配更加贴合,为轮胎负载提供支撑,还可以将胎体反包端点锚定,使胎圈损坏几率减小,有效提高轮胎耐久性能和高速性能,延长轮胎使用寿命。

关键词：全钢载重子午线轮胎胎圈仿生轮廓

Criteria for Submergence of Ice Blocks in Front of Ice Cover

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World Journal of Engineering and Technology 2020年第3期8卷 523-536页

作者： Jun Wang wanlong yang Jueyi Sui Tiejie Cheng Zhiqi Li Natalie Linklater School of Civil and Hydraulic Engineering Hefei University of Technology Hefei China Environmental Engineering Program University of Northern British Columbia Prince George Canada

During winter, ice jams develop when floating ice blocks accumulate in rivers. Ice jams can dramatically decrease in the capacity of flow in a river and can cause ice flooding due to increase in water level. Submergence of floating ice blocks in front of ice cover is critical for the development of an ice jam. In this study, the effect of the rotation angle of ice blocks on the submergence of ice block was assessed. The impacts of both the drag force caused by the flow and the hydraulic pressure force on the rotation of ice block were studied. Considering both the maximum moment for anti-overturn of an ice block, and the associated rotation angle θ1, equations for describing the criteria for ice block entrainment in front of ice cover have been derived. On the basis of the theorem for moment equilibrium, relating the moment acting on a horizontal ice block with the maximum anti-overturn moment of an ice block, the criteria for assessing the overturn-and-submergence of an ice block have been proposed. To verify results using the derived equations for calculating the critical flow velocity for ice block submergence in front of ice cover, data was collected from flume experiments in the laboratory. Experiments have been conducted using different sizes of ice block under different flow conditions in a flume which is 26.68 m long, 0.40 m wide, and 0.6 m deep. Model ice blocks were made of polypropylene and have nearly the same as the mass density of the natural ice. Using proposed method for assessing ice block submergence in front of ice cover, calculated critical flow velocities agree well with those of experi

轻量化12R22.5无内胎全钢子午线轮胎的设计

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轮胎工业 2024年第1期44卷 15-18页

作者：武玉建宋萌萌杨万龙山东金宇轮胎有限公司青岛分公司山东青岛266100

介绍轻量化12R22.5无内胎全钢子午线轮胎的设计。结构设计:外直径1 073 mm,断面宽292 mm,行驶面宽度215 mm,行驶面弧度高5.5 mm,胎圈着合直径569.5 mm,胎圈着合宽度240 mm,断面水平轴位置(H_(1)/H_(2)) 0.98,胎面采用4条S形花纹,花纹深... 详细信息

介绍轻量化12R22.5无内胎全钢子午线轮胎的设计。结构设计:外直径1 073 mm,断面宽292 mm,行驶面宽度215 mm,行驶面弧度高5.5 mm,胎圈着合直径569.5 mm,胎圈着合宽度240 mm,断面水平轴位置(H_(1)/H_(2)) 0.98,胎面采用4条S形花纹,花纹深度15.5 mm,花纹饱和度74.6%,花纹周节数57。施工设计:采用双复合挤出胎面,采用3层带束层+0°带束层结构,1#和2#带束层采用0.37+6×0.32ST钢丝帘线,3#带束层采用5×0.30HI钢丝帘线,0°带束层采用3×7×0.20HE钢丝帘线,胎体采用3×0.24/9×0.225ST钢丝帘线,采用一次法胶囊成型机成型、蒸锅式硫化机硫化。成品性能试验结果表明,轮胎的充气外缘尺寸、强度性能和耐久性能均满足国家标准和设计要求。

关键词：无内胎全钢子午线轮胎轻量化结构设计施工设计成品轮胎性能

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锆胶基质阳离子色谱柱填料的制备

分析化学 2006年第4期34卷 511-513页

作者：夏炎杨万龙左育民南开大学中心实验室南开大学化学系

以10μm锆胶微球包覆聚苯乙烯制成强酸、弱酸型的阳离子色谱柱填料,具有良好的色谱性能。使用D ionex-120型双柱离子色谱仪,较好地分离碱金属、碱土金属离子及铵离子,比较了不同交换基团对溶质保留的影响。由于锆胶基质具有高的化学稳... 详细信息

以10μm锆胶微球包覆聚苯乙烯制成强酸、弱酸型的阳离子色谱柱填料,具有良好的色谱性能。使用D ionex-120型双柱离子色谱仪,较好地分离碱金属、碱土金属离子及铵离子,比较了不同交换基团对溶质保留的影响。由于锆胶基质具有高的化学稳定性和机械强度,用作离子色谱柱填料有良好的应用前景。

关键词：阳离子色谱锆胶基质柱填料

Resilience Augmentation in Unmanned Weapon Systems via Multi-Layer Attention Graph Convolutional Neural Networks

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Computers, Materials & Continua 2024年第8期80卷 2941-2962页

作者： Kexin Wang Yingdong Gou Dingrui Xue Jiancheng Liu wanlong Qi Gang Hou Bo Li Northwest Institute of Mechanical and Electrical Engineering Xianyang712099China

The collective Unmanned Weapon System-of-Systems(UWSOS)network represents a fundamental element in modern warfare,characterized by a diverse array of unmanned combat platforms interconnected through hetero-geneous network *** its strategic importance,the UWSOS network is highly susceptible to hostile infiltrations,which significantly impede its battlefield recovery *** methods to enhance network resilience predominantly focus on basic graph relationships,neglecting the crucial higher-order dependencies among nodes necessary for capturing multi-hop meta-paths within the *** address these limitations,we propose the Enhanced-Resilience Multi-Layer Attention Graph Convolutional Network(E-MAGCN),designed to augment the adaptability of *** approach employs BERT for extracting semantic insights from nodes and edges,thereby refining feature representations by leveraging various node and edge ***,E-MAGCN integrates a regularization-based multi-layer attention mechanism and a semantic node fusion algo-rithm within the Graph Convolutional Network(GCN)*** extensive simulation experiments,our model demonstrates an enhancement in resilience performance ranging from 1.2% to 7% over existing algorithms.

关键词： Resilience enhancement heterogeneous network graph convolutional network

Hyperoside promotes pollen tube growth by regulating the depolymerization effect of actin depolymerizing factor 1 on microfilaments in okra

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Horticulture Research 2021年第1期8卷 2227-2240页

作者： Biying Dong Qing yang Zhihua Song Lili Niu Hongyan Cao Tengyue Liu Tingting Du wanlong yang Meng Qi Ting Chen Mengying Wang Haojie Jin Dong Meng Yujie Fu Beijing Advanced Innovation Center for Tree Breeding by Molecular Design College of ForestryBeijing Forestry UniversityBeijing 100000China Key Laboratory of Forest Plant Ecology Ministry of EducationNortheast Forestry UniversityHarbin 150000China

Mature pollen germinates rapidly on the stigma,extending its pollen tube to deliver sperm cells to the ovule for *** success of this process is an important factor that limits *** flavonoid content increased signi ficantly during pollen germination and pollen tube growth,which suggests it may play an important role in these ***,the speci fi c mechanism of this involvement has been little *** previous research found that hyperoside can prolong the flowering period of Abelmoschus esculentus(okra),but its speci fic mechanism is still ***,in this study,we focused on the effect of hyperoside in regulating the actin-depolymerizing factor(ADF),which further affects the germination and growth of *** found that hyperoside can prolong the effective pollination period of okra by 2-3-fold and promote the growth of pollen tubes in the ***,we used Nicotiana benthamiana cells as a research system and found that hyperoside accelerates the depolymerization of intercellular micro fi *** can promote pollen germination and pollen tube elongation in ***,AeADFl was identi fied out of all AeADF genes as being highly expressed in pollen tubes in response to *** addition,hyperoside promoted AeADF1-mediated micro filament dissipation according to micro filament severing experiments in *** the pollen tube,the gene expression of AeADFl was reduced to 1/5 by oligonucleotide *** decrease in the expression level of AeADFl partially reduced the promoting effect of hyperoside on pollen germination and pollen tube *** research provides new research directions for flavonoids in reproductive development.

关键词： effect polymerization polymer

全钢载重子午线轮胎钢丝帘线压延质量问题及解决措施

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橡胶科技 2013年第5期11卷 35-37页

作者：杨万龙青岛科技大学山东青岛266500 山东金宇轮胎有限公司山东东营257300

分析全钢载重子午线轮胎钢丝帘线压延工艺中钢丝帘线重叠交叉、跳线、覆胶喷霜、露钢丝等质量问题。通过调整整经辊和压力辊,降低供胶温度和压延速度、减小供胶机胶容量、确保适合的钢丝张力值等措施,钢丝帘线的压延质量大幅提高,压延... 详细信息

分析全钢载重子午线轮胎钢丝帘线压延工艺中钢丝帘线重叠交叉、跳线、覆胶喷霜、露钢丝等质量问题。通过调整整经辊和压力辊,降低供胶温度和压延速度、减小供胶机胶容量、确保适合的钢丝张力值等措施,钢丝帘线的压延质量大幅提高,压延质量缺陷率小于0.2%。

关键词：全钢载重子午线轮胎钢丝帘线压延质量缺陷 X光检测

省直管县财政改革促进县域粮食生产吗——基于准自然实验的证据

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中国农村经济 2024年第6期 152-172页

作者：杨义武林万龙南京财经大学财政与税务学院中国农业大学经济管理学院

本文基于2000一2020年县级面板数据,使用交错双重差分方法估计省直管县财政改革对粮食生产的影响。研究发现:省直管县财政改革能显著促进县域粮食生产。省直管县财政改革通过提升县级政府财政治理能力,引导粮农增加粮食作物播种面积、... 详细信息

本文基于2000一2020年县级面板数据,使用交错双重差分方法估计省直管县财政改革对粮食生产的影响。研究发现:省直管县财政改革能显著促进县域粮食生产。省直管县财政改革通过提升县级政府财政治理能力,引导粮农增加粮食作物播种面积、提升农业机械化水平、增加化肥施用量等生产要素配置机制和强化省级政府粮食注意力分配机制,促进县域粮食生产。异质性分析表明,省直管县财政改革的粮食增产效应在非强县扩权试点县、经济欠发达县、财政弱县、粮食主产区县域以及产粮大县更为明显。省直管县财政改革实施时间越长,其粮食增产效应越明显。本文拓展了省直管县财政改革成效的研究,为新阶段深化省以下财政体制改革、维护国家粮食安全提供了经验证据和决策方向。应适度增强省级财政统筹调控能力,逐步优化省直管县财政改革的实施范围与实施方式,合理划分省级和县级政府的财政事权和支出责任,提升县级政府粮食安全保障的财政治理能力。

关键词：省直管县财政改革粮食生产财政关系生产要素配置