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水氮耦合对滴灌玉米光合特性及产量的调控效应

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东北农业大学学报 2024年第3期55卷 10-20页

作者：戚迎龙宁小莉孙贯芳李敏史海滨内蒙古农业大学水利与土木建筑工程学院呼和浩特010018 内蒙古科技大学包头师范学院内蒙古包头014030 西北农林科技大学水土保持科学与工程学院陕西杨凌712100

探索水氮施用对玉米光合参数及产出指标的影响规律,寻求适宜水氮耦合量,为西辽河流域水肥管理提供理论和应用参考。膜下滴灌田间试验设置三种灌溉水平与三种施氮量组合形成9个处理,对比分析不同水氮组合作用效果。结果表明,水氮两因素... 详细信息

探索水氮施用对玉米光合参数及产出指标的影响规律,寻求适宜水氮耦合量,为西辽河流域水肥管理提供理论和应用参考。膜下滴灌田间试验设置三种灌溉水平与三种施氮量组合形成9个处理,对比分析不同水氮组合作用效果。结果表明,水氮两因素对玉米光合速率Pn、蒸腾速率Tr、气孔导度Gs、胞间二氧化碳浓度Ci影响程度表现为灌水>施氮,对叶片水分利用效率WUE影响程度表现为施氮>灌水。对于Pn,W_(2)N_(2)(中水中氮)显著高于W_(3)N_(1)(高水低氮)、对于Tr,W_(2)N_(2)和W_(3)N_(1)差异不显著,因此灌溉量由中水至高水(1802~2315 m^(3)·hm^(-2))对Pn提升作用无法补偿中氮240 kg·hm^(-2)降至低氮192 kg·hm^(-2)对Pn的削弱作用,但可补偿对Tr的负效应。中高灌溉水平下氮肥192~240 kg·hm^(-2)可有效提升Pn、Tr、百粒重、穗粒重(W_(2)N_(2)显著高于W_(2)N_(1)、W_(3)N_(2)显著高于W_(3)N_(1)),继续施氮无显著作用。玉米产量提升与Pn、Tr增大呈正相关,水分亏缺时中氮240 kg·hm^(-2)至高氮288 kg·hm^(-2)无明显增产作用,中等灌溉水平下氮肥增产效果显著。W_(3)N_(2)(高水中氮)耦合下玉米可获得最佳光合能力及产量水平,但超过W_(2)N_(2)(中水中氮)的耦合量对WUE无增效、降低光合产物在籽粒中的分配比例。综合考虑光合参数及产量,推荐中等至较高的灌溉水平1802~2315 m^(3)·hm^(-2)(W2~W3)与中等施氮水平240 kg·hm^(-2)(N2)为最优水氮耦合量。

关键词：水氮耦合光合参数膜下滴灌水肥一体化玉米

艾司氯胺酮联合竖脊肌平面阻滞对胸腔镜手术患者术后早期恢复质量的影响

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临床麻醉学杂志 2024年第5期40卷 473-477页

作者：宁晓丽刘伟李娟邱诚解凤磊闫声明安徽医科大学附属亳州医院麻醉科 236800 安徽省立医院麻醉科安徽医科大学附属巢湖医院麻醉科

目的探讨艾司氯胺酮联合竖脊肌平面阻滞(ESPB)对胸腔镜肺部手术患者术后早期恢复质量的影响。方法选择2022年5月至2023年7月行胸腔镜肺部手术(胸腔镜下肺癌根治术、胸腔镜下肺叶或肺段切除术)患者90例,男47例,女43例,年龄18~64岁,BMI 18... 详细信息

目的探讨艾司氯胺酮联合竖脊肌平面阻滞(ESPB)对胸腔镜肺部手术患者术后早期恢复质量的影响。方法选择2022年5月至2023年7月行胸腔镜肺部手术(胸腔镜下肺癌根治术、胸腔镜下肺叶或肺段切除术)患者90例,男47例,女43例,年龄18~64岁,BMI 18~25 kg/m^(2),ASAⅠ或Ⅱ级。采用随机数字法将患者分为两组:ESPB组(C组)和艾司氯胺酮联合ESPB组(D组),每组45例。两组患者完成超声引导下ESPB,随后C组采用舒芬太尼行麻醉诱导和患者自控静脉镇痛(PCIA);D组用艾司氯胺酮行麻醉诱导、麻醉维持和术后PCIA。记录术中麻醉药物用量、术后1、6、12、24、48 h患者活动时NRS疼痛评分、术后24 h内PCIA按压次数、术后补救镇痛次数、麻醉苏醒时间、术后2 d内术后恶心、呕吐及艾司氯胺酮有关不良反应的发生情况。术前1 d、术后2 d采用40项恢复质量量表(QoR-40)评分评估患者恢复质量。术前1 d及出院时采用医院焦虑-抑郁量表(HADS)评估患者焦虑、抑郁情绪。结果与C组比较,D组术中丙泊酚、瑞芬太尼用量明显减少,术后恶心呕吐发生率明显降低,术后2 d QoR-40评分明显升高,出院时HADS评分明显降低(P<0.05)。结论艾司氯胺酮联合ESPB用于胸腔镜肺部手术患者安全有效,围术期镇痛完善,不良反应少,患者早期恢复质量较高,为此类手术提供一种新的麻醉选择。

关键词：艾司氯胺酮竖脊肌平面阻滞肺癌切除术术后早期恢复质量阿片类药物胸腔镜

基于改进YOLOV5m的列车风管与折角塞门检测

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自动化应用 2024年第1期65卷 23-25,28页

作者：冯斌宁小丽刘榆欣周俊石磊陕西榆横铁路有限责任公司陕西榆林719000 四川国软科技集团有限公司四川成都610031

由于操作环境复杂,风管和折角塞门尺寸小,原始YOLOV5m算法的检测精度有待提高。为此,在YOLOV5m的检测头输出部分增加了一个大尺寸特征图,用于提升小尺寸目标的检测能力。首先在主干网络中增加1个含有多卷积、短连接的类残差分流模块,以... 详细信息

由于操作环境复杂,风管和折角塞门尺寸小,原始YOLOV5m算法的检测精度有待提高。为此,在YOLOV5m的检测头输出部分增加了一个大尺寸特征图,用于提升小尺寸目标的检测能力。首先在主干网络中增加1个含有多卷积、短连接的类残差分流模块,以丰富浅层网络的梯度流信息,并将新增模块的输出作为新增的大尺寸特征图。然后在Neck部分使用特征金字塔模型FPN和路径聚合模型PAN进行多尺寸特征融合,最终在检测头部分得到了4种不同尺寸的特征图。结果显示,改进YOLOV5m的检测帧率约为每秒100帧,比原始YOLOV5m在平均精度mAP上提升了1.3%,表明改进YOLOV5m可作为可见光辅助模型提升列车摘钩机器人多模态识别系统的性能。

关键词：深度学习目标检测列车风管折角塞门多尺度特征

Summarization and comparison of dermoscopic features on different subtypes of rosacea

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Chinese Medical Journal 2022年第12期135卷 1444-1450页

作者： Wenmin Fei Yang Han Ang Li Keke Li xiaoli ning Chengxu Li Wenju Wang Rusong Meng Yong Cui Department of Dermatology China-Japan Friendship HospitalBejing 100029China Graduate School Peking Union Medical College and Chinese Academy of Medical SciencesBejng 100730China Graduate School of Peking University Health Science Center Bejing 100191China Department of Dermatology Chengdu Second People's HospitalChengduSichuan 610017China Department of Dermatology Specialty Medical Center of the Air ForceChinese People's Liberation ArmyBeijing 100142China

Background:The dermoscopic features of rosacea have already been ***,the current findings are incomplete,and little is known about phymatous ***,this study aimed to summarize and compare the dermoscopic features and patterns of three rosacea subtypes(erythematotelangiectatic[ETR],papulopustular[PPR],and phymatous[PHR])in the Chinese Han population and to evaluate whether these features differ with patients’genders,ages,and ***:Dermoscopic images of 87 rosacea patients were collected in non-polarized and polarized dermoscopy contact modes at 20-fold *** features,including vessels,scales,follicular findings,and other structures,were summarized and ***::The reticular linear vessels and red diffuse structureless areas of ETR were *** PPR,red diffuse structureless areas,reticular linear vessels,yellow scales,follicular plugs,and follicular pustules were typical dermoscopic *** common dermoscopic features of PHR were:orange diffuse structureless areas,linear vessels with branches,perifollicular white color,orange focal structureless areas,and white *** following features statistically differed among the three rosacea subtypes:reticular linear vessels(P<0.001),unspecific linear vessels(P=0.005),linear vessels with branches(P<0.001),yellow scales(P=0.001),follicular plugs(P<0.001),perifollicular white color(P<0.001),red diffuse structureless areas(P=0.022),orange diffuse structureless areas(P<0.001),red focal structureless areas(P=0.002),orange focal structureless areas(P=0.003),white lines(P<0.001),follicular pustules(P<0.001),and black vellus hairs(P<0.001).Conclusions:The dermoscopic patterns of ETR are red diffuse structureless areas and reticular linear *** PPR,the pattern comprehends combinations of red diffuse structureless areas,reticular linear vessels,yellow scales,follicular plugs,and follicular ***,PHR is characterized by remarkable orange d

关键词： Rosacea Dermoscopic features Patterns Summarizations Comparisons

Deficiency of two-pore segment channel 2 contributes to systemic lupus erythematosus via regulation of apoptosis and cell cycle

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Chinese Medical Journal 2022年第4期135卷 447-455页

作者： Keke Li Jingkai Xu Ke Xue Ruixing Yu Chengxu Li Wenmin Fei xiaoli ning Yang Han Ziyi Wang Jun Shu Yong Cui Department of Dermatology China-Japan Friendship HospitalBeijing 100029China Graduate School of Peking Union Medical College Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100730China Institute of Clinical Medical Science China-Japan Friendship HospitalBeijing 100029China

Background:Systemic lupus erythematosus(SLE)is a complex autoimmune disease,and the mechanism of SLE is yet to be fully *** aim of this study was to explore the role of two-pore segment channel 2(TPCN2)in SLE ***:Quantitative reverse transcription polymerase chain reaction(qRT-PCR)was used to detect the expression ofTPCN2 in *** performed a loss-of-function assay by lentiviral construct in Jurkat and THP-1 *** ofTPCN2 were confirmed at the RNA level by qRT-PCR and protein level by Western *** Count Kit-8 and flow cytometry were used to analyze the cell proliferation,apoptosis,and cell cycle ofTPCN2-deficient *** addition,gene expression profile ofTPCN2-deficient cells was analyzed by RNA sequencing(RNA-seq).Results:TPCN2 knockdown with short hairpin RNA(shRNA)-mediated lentiviruses inhibited cell proliferation,and induced apoptosis and cell-cycle arrest of G2/M phase in both Jurkat and THP-1 *** analyzed the transcriptome of knockdown-TPCN2-Jurkat cells,and screened the differential genes,which were enriched for the G2/M checkpoint,complement,and interleukin-6-Janus kinase-signal transducer and activator of transcription pathways,as well as changes in levels of forkhead box O,phosphatidylinositol 3-kinase/protein kinase B/mechanistic target of rapamycin,and T cell receptor pathways;moreover,TPCN2 significantly influenced cellular processes and biological ***:TPCN2 might be a potential protective factor against SLE.

关键词： TPCN2 Systemic lupus erythematosus RNA sequencing analysis Apoptosis Cell cycle

Learning to represent 2D human face with mathematical model

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CAAI Transactions on Intelligence Technology 2024年第1期9卷 54-68页

作者： Liping Zhang Weijun Li Linjun Sun Lina Yu Xin ning xiaoli Dong AnnLab Institute of SemiconductorsChinese Academy of SciencesBeijingChina Center of Materials Science and Optoelectronics Engineering School of Integrated CircuitsUniversity of Chinese Academy of SciencesBeijingChina Beijing Key Laboratory of Semiconductor Neural Network Intelligent Sensing and Computing Technology BeijingChina

How to represent a human face pattern?While it is presented in a continuous way in human visual system,computers often store and process it in a discrete manner with 2D arrays of *** authors attempt to learn a continuous surface representation for face image with explicit ***,an explicit model(EmFace)for human face representation is pro-posed in the form of a finite sum of mathematical terms,where each term is an analytic function ***,to estimate the unknown parameters of EmFace,a novel neural network,EmNet,is designed with an encoder-decoder structure and trained from massive face images,where the encoder is defined by a deep convolutional neural network and the decoder is an explicit mathematical expression of *** authors demonstrate that our EmFace represents face image more accurate than the comparison method,with an average mean square error of 0.000888,0.000936,0.000953 on LFW,IARPA Janus Benchmark-B,and IJB-C *** results show that,EmFace has a higher representation performance on faces with various expressions,postures,and other ***,EmFace achieves reasonable performance on several face image processing tasks,including face image restoration,denoising,and transformation.

关键词： artificial neural networks face analysis image processing mathematics computing

Hepatic steatosis is associated with dysregulated cholesterol metabolism and altered protein acetylation dynamics in chickens

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Journal of Animal Science and Biotechnology 2024年第1期15卷 53-67页

作者： xiaoli Guo Qianqian Zhou Jiaming Jin Fangren Lan Chaoliang Wen Junying Li ning Yang Congjiao Sun National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics Breeding and ReproductionMinistry of Agriculture and Rural AffairsChina Agricultural UniversityBeijing 100193China

Background Hepatic steatosis is a prevalent manifestation of fatty liver, that has detrimental effect on the health and productivity of laying hens, resulting in economic losses to the poultry industry. Here, we aimed to systematically investigate the genetic regulatory mechanisms of hepatic steatosis in laying *** Ninety individuals with the most prominent characteristics were selected from 686 laying hens according to the accumulation of lipid droplets in the liver, and were graded into three groups, including the control, mild hepatic steatosis and severe hepatic steatosis groups. A combination of transcriptome, proteome, acetylome and lipidome analyses, along with bioinformatics analysis were used to screen the key biological processes, modifications and lipids associated with hepatic *** The rationality of the hepatic steatosis grouping was verified through liver biochemical assays and RNA-seq. Hepatic steatosis was characterized by increased lipid deposition and multiple metabolic abnormalities. Integration of proteome and acetylome revealed that differentially expressed proteins(DEPs) interacted with differentially acetylated proteins(DAPs) and were involved in maintaining the metabolic balance in the liver. Acetylation alterations mainly occurred in the progression from mild to severe hepatic steatosis, i.e., the enzymes in the fatty acid oxidation and bile acid synthesis pathways were significantly less acetylated in severe hepatic steatosis group than that in mild group(P < 0.05). Lipidomics detected a variety of sphingolipids(SPs) and glycerophospholipids(GPs) were negatively correlated with hepatic steatosis(r ≤-0.5, P < 0.05). Furthermore, the severity of hepatic steatosis was associated with a decrease in cholesterol and bile acid synthesis and an increase in exogenous cholesterol *** In addition to acquiring a global and thorough picture of hepatic steatosis in laying hens, we were able to reveal the role of ac

关键词： Acetylation Cholesterol metabolism Hepatic steatosis Laying hens Multiomics

Protective eff ect of Solanum Nigrum Linn green fruit ethanolic extract on alcoholic liver injury in mice

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Journal of Polyphenols 2024年第3期6卷 91-97页

作者： xiaoli Wang ning Wang Nan Yang Xiaoshu Zhang Faculty of Functional Food and Wine Shenyang Pharmaceutical UniversityShenyang 110016China

Alcoholic liver injury is a liver disease caused by excessive alcohol consumption,which can lead to chronic liver disease *** Nigrum Linn taste bitter,cold,has the effect of clearing heat and detoxification,promoting blood and *** Nigrum Linn fruit contains a variety of antioxidant enzymes,can remove the body produced by aerobic metabolism harmful *** this paper,a model of alcohol-induced liver injury in C57BL/6 mice was established to evaluate the protective eff ect of Solanum Nigrum Linn green fruit(SNGF)ethanolic extract on alcohol-induced liver injury.H&E staining and oil red O(ORO)staining showed that hepatic lobules were clearly demarcated,vacuoles were signifi cantly reduced and lipid droplets were reduced in SNGF ethanolic extract treatment *** levels of TC,TG,LDH,TBA,AKP,ALT and AST were decreased in the SNGF ethanolic extract treatment group,and SNGF ethanolic extract could clear reactive oxygen species(ROS)in *** content was signifi cantly decreased after SNGF ethanolic extract treatment,while superoxide dismutase(SOD)and GSH-Px contents were increased after SNGF ethanolic extract *** results suggest that SNGF ethanolic extract has a protective eff ect on alcohol-induced liver injury.

关键词： Solanum Nigrum Linn green fruit ethanolic extract alcoholic liver injury protective eff ect

支管轴压下高强钢圆管X形节点的承载力计算公式

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同济大学学报（自然科学版） 2024年第1期52卷 49-58,85页

作者：宁鹏童乐为朱小利同济大学土木工程防灾国家重点实验室上海200092 上海中侨职业技术大学建筑工程学院上海201514

研究了支管受压的Q460、Q690、Q960高强钢圆管X形节点的静力性能。采用经试验数据验证的有限元模型进行节点有限元参数分析,研究高强钢牌号、支管与主管外径之比(β)、主管外径与其管壁厚度之比(2γ)、主管轴向应力比(n)对节点性能的影... 详细信息

研究了支管受压的Q460、Q690、Q960高强钢圆管X形节点的静力性能。采用经试验数据验证的有限元模型进行节点有限元参数分析,研究高强钢牌号、支管与主管外径之比(β)、主管外径与其管壁厚度之比(2γ)、主管轴向应力比(n)对节点性能的影响;与有限元参数分析和文献中试验结果对比,评价我国钢结构设计标准计算公式的适用性。结果表明,节点发生主管塑性破坏,节点承载力多由主管局部变形限值(3%主管外径)确定;多数情况下钢结构设计标准计算公式高估了高强钢圆管X形节点的承载力;主管受到压力或较大拉力时均会降低节点承载力。最后,针对不同钢材牌号的圆管X形节点给出了建议的2γ范围。基于主管塑性破坏,提出了考虑高强钢屈服强度、主管拉压效应的圆管X形节点承载力计算公式。

关键词：高强钢系列圆管X形节点有限元分析主管拉压效应承载力