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基于图像处理的连续纤维增强复合材料3D打印精度在线优化方法

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江苏科技大学学报（自然科学版） 2024年第3期38卷 84-90页

作者：王叶松计良张礼华章中森陈曙光孙梓轩江苏科技大学机械工程学院镇江212100 同济大学航空航天与力学学院上海200092 北京航天新立科技有限公司北京100039

为了改善“独立挤出型”连续纤维增强复合材料3D打印(continuous fiber reinforced composite 3D printing, CFRC 3DP)制件的尺寸精度,提出了基于图像处理技术的在线优化方法,建立了CFRC 3DP尺寸精度的在线反馈优化模型,研究了图像滤波... 详细信息

为了改善“独立挤出型”连续纤维增强复合材料3D打印(continuous fiber reinforced composite 3D printing, CFRC 3DP)制件的尺寸精度,提出了基于图像处理技术的在线优化方法,建立了CFRC 3DP尺寸精度的在线反馈优化模型,研究了图像滤波、边缘检测及边缘几何基元的提取方法,基于CFRC 3DP打印层实际尺寸与理论尺寸的误差对比,求解了打印制件的误差比例系数,修正了电机步进值,实现了CFRC 3DP尺寸精度的在线优化.通过对典型轴套类零件优化前后的打印尺寸研究,并利用假设检验进行了统计学分析,实验结果表明优化前后打印样件的尺寸存在显著性差异,8 mm轴和16 mm轴的直径打印精度分别提升了1.34%和0.76%,且标准差均有所减小,验证了尺寸精度在线优化方法的可行性和有效性.

关键词：独立挤出 CFRC 3DP 图像处理在线优化尺寸精度

The evolution and diurnal expression patterns of photosynthetic pathway genes of the invasive alien weed,Mikania micrantha

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Journal of Integrative Agriculture 2024年第2期23卷 590-604页

作者： Kangkang wang Mengjiao Jin Jingjing Li yesong Ren Zaiyuan Li Xinghai Ren Cong Huang Fanghao Wan Wanqiang Qian Bo Liu Shenzhen Branch Guangdong Laboratory of Lingnan Modern Agriculture/Genome Analysis Laboratory of the Ministry of Agriculture and Rural AffairsAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhen 518120China State Key Laboratory of Crop Stress Adaptation and Improvement School of Life SciencesHenan UniversityKaifeng 475004China Shenzhen Research Institute of Henan University Shenzhen 518000China

Mikania micrantha is a fast-growing global invasive weed species that causes severe damage to natural ecosystems and very large economic losses of forest and crop *** has advantages in photosynthesis,including a similar net photosynthetic rate as C4 plants and a higher carbon fixation *** used a combination of genomics and transcriptomics approaches to study the evolutionary mechanisms and circadian expression patterns of *** ***,16 positive selection genes focused on photoreaction and utilization of *** different tissues,98.1%of the genes associated with photoresponse had high expression in stems,and more than half of the genes of the C4 cycle had higher expression in stems than in *** stomatal opening and closing,2 genes of carbonic anhydrase(CAs)had higher expression at 18:00 than at 8:00,and the slow anion channel 1(SLAC1)and high-leaf-temperature 1 kinase(HT1)genes were expressed at low levels at 18:*** addition,genes associated with photosynthesis had higher expression levels at 7:00 and 17:*** hypothesized that *** may undergo photosynthesis in the stem and flower organs and that some stomata of the leaves were opening at night by CO_(2)*** addition,its evolution may attenuate photoinhibition at high light intensities,and enhance more efficient of photosynthesis during low light *** the tissue-specific photosynthetic types and different diurnal pattern of photosynthetic-related genes may contribute to its rapid colonization of new habitats of ***.

关键词： invasion plant Mikania micrantha photosynthesis stomata stem

肝素结合蛋白对接受体外膜肺氧合治疗患者院内继发感染的诊断价值

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国际流行病学传染病学杂志 2024年第3期51卷 169-173页

作者：方红龙赵俊杰汪叶松陈卫挺於佳飞罗建张伟文张根生衢州市人民医院重症医学科衢州324000 浙江中医药大学附属第三临床医学院杭州310053 浙江大学医学院附属第二医院重症医学科杭州310009 临海市第一人民医院急诊科台州317000 海盐县人民医院重症医学科嘉兴314399 多脏器衰竭预警与干预教育部重点实验室(浙江大学) 杭州310009

目的探讨肝素结合蛋白(heparin-binding protein, HBP)对接受体外膜肺氧合(extracorporeal membrane oxygenation, ECMO)治疗患者发生院内继发感染的诊断价值。方法单中心回顾性分析2020年1月至2023年1月收治衢州市人民医院重症医学科... 详细信息

目的探讨肝素结合蛋白(heparin-binding protein, HBP)对接受体外膜肺氧合(extracorporeal membrane oxygenation, ECMO)治疗患者发生院内继发感染的诊断价值。方法单中心回顾性分析2020年1月至2023年1月收治衢州市人民医院重症医学科并接受ECMO治疗的患者, 根据ECMO运行期间是否发生感染分成感染组和非感染组, 收集并分析两组患者的一般人口学资料、化验检查、感染类型以及预后等指标。ECMO治疗开始后每日抽血检测, HBP取确诊院内感染当日、确诊院内感染前24 h、48 h和72 h四个时间点的检测结果进行动态分析。采用受试者工作曲线(ROC)评价HBP对ECMO患者院内感染的诊断价值。结果共66例接受ECMO的患者纳入研究, 其中感染组患者23例, 占34.85%。感染组在ECMO运行后发生院内感染的中位时间为7 d, 以呼吸道感染最为多见(52.17%, 12/23), 28 d存活患者数为5例(21.74%, 5/23), 明显低于非感染组(χ^(2)=3.908, P=0.048)。与非感染组相比, 感染组患者在确诊院内感染当日[(42.08±19.15) ng/mLvs.(16.76±6.31)ng/mL,t=7.943,P<0.001]及确诊院内感染前24 h[(33.13±14.47)ng/mLvs.(16.61±5.71)ng/mL,t=7.020,P<0.001]的HBP水平明显升高。HBP诊断ECMO患者院内感染的曲线下面积(AUC)为0.873。当HBP ≥22.98 ng/mL时, 诊断ECMO患者发生院内感染的灵敏度为85.0%, 特异性为80.4%。结论接受ECMO治疗的患者发生院内感染比例高达1/3, 一旦发生, 明显影响预后。患者接受ECMO治疗后, 动态观察HBP具有重要的意义, 当急性升高达22.98 ng/mL及以上对院内感染具有较好的诊断价值。

关键词：交叉感染肝素结合蛋白体外膜肺氧合诊断价值

传动轴表面硅烷化处理与水性漆涂装的工艺研究

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时代汽车 2020年第14期 141-142页

作者：陈超广王业嵩吉凯恩动力机械(柳州)有限公司广西柳州市545007 柳州五菱汽车工业有限公司广西柳州市545007

结合传动轴产品的结构特点,研究表面硅烷化处理、局部遮蔽、双组分水性漆喷涂的涂装工艺,有效降低挥发性有机化合物(VOC)排放量,为企业节能降耗,创造效益。

关键词：硅烷化处理水性漆局部遮蔽

Clinical characteristics and risk factors in mixed-enterococcal bloodstream infections

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Clinical characteristics and risk factors in mixed-enterococ...

2019年浙江省医学会医学微生物与免疫学分会学术大会

作者： Cheng Zheng Jiachang Cai Haizhou Liu Shufang Zhang Li Zhong Nanxia Xuan Hongwei Zhou Kai Zhang yesong wang Xijiang Zhang Baoping Tian Zhaocai Zhang Changming wang Wei Cui Gensheng Zhang Department of Critical Care Medicine Second Affiliated HospitalZhejiang University School of Medicine Department of Critical Care Medicine Taizhou Municipal Hospital Clinical Microbiology Laboratory Second Affiliated HospitalZhejiang University School of Medicine Department of Critical Care Medicine Zhejiang Rehabilitation Hospital Department of Cardiology Second Affiliated HospitalZhejiang University School of Medicine Department of Critical Care Medicine Huzhou First People's Hospital

Objectives:Although the enterococcal bloodstream infections(EBSI) are often observed in clinic,the mixedEBSI were few *** aim of this study was to investigate the clinical characteristics and risk factors of mixedEBSI in comparison with monomicrobial EBSI(mono-EBSI).Methods:A single center retrospective observational study was performed between Jan 1,2013 and Dec 31,2018 in a tertiary *** patients with EBSI were enrolled,and their data were collected by reviewing electronic medical ***:A total of 451 patients with EBSI were enrolled including 157 cases(34.8%) with *** most common co-pathogens were Gram-negative bacteria(57.1%),followed by Gram-positive bacteria(38.3%) and fungi(4.6%).In multivariable analysis,burn injury(adjusted odds ratio [OR],0.136;95% confidence interval [CI],0.050-0.373),and length of prior hospital stay(aOR,1.009;95% CI,1.001-1.017) were associated with *** with mixed-EBSI developed with more proportion of septic shock(19% vs.31.8%,p=0.002),prolonged length of intensive care unit(ICU) stay [9(0,25) vs.15(2.5,36),p<0.001] and hospital stay [29(16,49) vs.33(18.5,63),p=0.031].The mortality was not significantly different between mixed-EBSI and mono-EBSI(p=0.219).Conclusions:A high rate of mixed-EBSI was among EBSI,and the Gram-negative bacteria were the predominant co-existed *** injury and length of prior hospital stay were independent risk factors for *** the mortality was not different,patients with mixed-EBSI had poor outcomes in comparison with mono-EBSI,which merits more attention by physicians in the future.

关键词： Bloodstream infections Mixed-enterococcal bloodstream infections Monomicrobial enterococcal bloodstream infections Clinical characteristics Risk factors

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一种面向Web的访问控制框架

计算机应用与软件 2010年第1期27卷 174-176,190页

作者：王叶松胡谷雨解放军理工大学指挥自动化学院江苏南京210007

在研究面向Web的访问控制框架基础上,对原有的轻量级目录进行改进,提出了一种面向客体的动态授权策略。在此基础上,对权限管理基础设施PMI(Privilege Management Infrastructure)中的多个PMI节点进行逻辑分级,设计了一个适用于卫星通信... 详细信息

在研究面向Web的访问控制框架基础上,对原有的轻量级目录进行改进,提出了一种面向客体的动态授权策略。在此基础上,对权限管理基础设施PMI(Privilege Management Infrastructure)中的多个PMI节点进行逻辑分级,设计了一个适用于卫星通信运控系统的监控系统访问控制框架——面向Web基于属性的访问控制框架,实现了对监控信息的细粒度访问控制。

关键词：权限管理基础设施可扩展访问控制标记语言轻量级目录访问协议

根治性膀胱切除术后膀胱尿路上皮癌的复发和远处转移率的临床研究

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国际泌尿系统杂志 2019年第5期39卷 815-819页

作者：胡新红王叶松汉中市中心医院泌尿外科 723000

目的评估根治性膀胱切除术后膀胱尿路上皮癌的局部复发率和远处转移率,并确定局部复发和远处转移的相关因素。方法选取本院200例在2001年至2011年内诊断为膀胱尿路上皮癌并接受根治性膀胱切除术治疗的患者,对患者进行随访(平均33.5个月... 详细信息

目的评估根治性膀胱切除术后膀胱尿路上皮癌的局部复发率和远处转移率,并确定局部复发和远处转移的相关因素。方法选取本院200例在2001年至2011年内诊断为膀胱尿路上皮癌并接受根治性膀胱切除术治疗的患者,对患者进行随访(平均33.5个月)并行相应检査,收集相关临床资料。结果所有符合纳入标准的患者中,共有123例患者发生了复发,其中局部复发患者有45例(24.5%),远处转移患者有78例(39.0%);不同LND水平之间(<10%vs.≥10%)差异具有统计学意义(P=0.006);对不同的预测因素的分析结果显示,临床阶段(HR=2.035/3.567,P<0.001)和淋巴结受累(HR=3.560,P<0.001)是评估术后复发的最重要的预测因子。结论根治性膀胱切除术术后复发是膀胱癌手术治疗的主要障碍,而临床阶段和淋巴结受累则是局部复发和远处转移的重要预后因素,针对预后因素的辅助治疗可以改善患者生存状态。

关键词：膀胱肿瘤膀胱切除术肿瘤复发,局部肿瘤转移

Clinical characteristics and risk factors in mixed-enterococcal bloodstream infections

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Clinical characteristics and risk factors in mixed-enterococ...

重症脑疾病患者非惊厥性癫痫持续状态研究进展

第四届重症心脏全国学术大会暨第五届西湖重症医学大会、2019年浙江省重症医学学术大会（重症心脏-心与心外器官)

作者： Cheng Zheng Jiachang Cai Haizhou Liu Shufang Zhang Li Zhong Nanxia Xuan Hongwei Zhou Kai Zhang yesong wang Xijiang Zhang Baoping Tian Zhaocai Zhang Wei Cui Gensheng Zhang

Objectives:Although the enterococcal bloodstream infections(EBSI) are often observed in clinic,the mixedEBSI were few *** aim of this study was to investigate the clinical characteristics and risk factors of mixedEBSI in comparison with monomicrobial EBSI(mono-EBSI).Methods:A single center retrospective observational study was performed between Jan 1,2013 and Dec 31,2018 in a tertiary *** patients with EBSI were enrolled,and their data were collected by reviewing electronic medical ***:A total of 451 patients with EBSI were enrolled including 157 cases(34.8%) with *** most common co-pathogens were Gram-negative bacteria(57.1%),followed by Gram-positive bacteria(38.3%) and fungi(4.6%).In multivariable analysis,burn injury(adjusted odds ratio [OR],0.136;95% confidence interval [CI],0.050-0.373),and length of prior hospital stay(aOR,1.009;95% CI,1.001-1.017) were associated with *** with mixed-EBSI developed with more proportion of septic shock(19% vs.31.8%,p=0.002),prolonged length of ICU stay [9(0,25) vs.15(2.5,36),p<0.001] and hospital stay [29(16,49) vs.33(18.5,63),p=0.031].The mortality was not significantly different between mixed-EBSI and mono-EBSI(p=0.219).Conclusions:A high rate of mixed-EBSI was among EBSI,and the Gram-negative bacteria were the predominant co-existed *** injury and length of prior hospital stay were independent risk factors for *** the mortality was not different,patients with mixed-EBSI had poor outcomes in comparison with mono-EBSI,which merits more attention by physicians in the future.

关键词： Bloodstream infections Mixed-enterococcal bloodstream infections Monomicrobial enterococcal bloodstream infections Clinical characteristics Risk factors

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中华神经外科疾病研究杂志 2010年第5期9卷 475-477页

作者：汪叶松邓艳春第四军医大学西京医院神经内科陕西西安710032

非惊厥性癫痫持续状态(nonconvulsive status epilepticus,NCSE)是癫痫传统分类中的一大类,虽然在新的癫痫国际分类中较少提及,但在临床上,特别是在重症患者中的应用却较广泛,其诊治是现代神经病学中一个极大的挑战[1～3].癫痫发作及其... 详细信息

非惊厥性癫痫持续状态(nonconvulsive status epilepticus,NCSE)是癫痫传统分类中的一大类,虽然在新的癫痫国际分类中较少提及,但在临床上,特别是在重症患者中的应用却较广泛,其诊治是现代神经病学中一个极大的挑战[1～3].癫痫发作及其持续状态在重症疾病的患者中很常见,尤其是重症脑疾病和有严重的神经系统并发症患者.Z

关键词：脑疾病癫痫持续状态