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Image format pipeline and instrument diagram recognition method based on deep learning

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Biomimetic Intelligence & Robotics 2024年第1期4卷 36-44页

作者： Guanqun Su Shuai Zhao Tao li Shengyong liu Yaqi li Guanglong Zhao Zhongtao li Shandong Qingniao IIoT Co. ltd.Jinan 250014China Jinan Housing and Urban-Rural Development Bureau Jinan 250012China State Grid Shandong Electric Extrahigh Voltage Company Jinan 250018China School of Information Science and Engineering University of JinanJinan 250022China

In this study,we proposed a recognition method based on deep artificial neural networks to identify various elements in pipelines and instrumentation diagrams(P&ID)in image formats,such as symbols,texts,and ***,the P&ID image format is recognized manually,and there is a problem with a high recognition error rate;therefore,automation of the above process is an important issue in the processing plant *** China National Offshore Petrochemical Engineering *** the image set used in this study,which contains 51 P&ID drawings in the *** converted the PDF P&ID drawings to PNG P&IDs with an image size of 8410×*** addition,we used labeling software to annotate the images,divided the dataset into training and test sets in a 3:1 ratio,and deployed a deep neural network for *** method proposed in this study is divided into three *** first step segments the images and recognizes symbols using YOLOv5+*** second step determines text regions using character region awareness for text detection,and performs character recognition within the text region using the optical character recognition *** third step is pipeline recognition using YOLOv5+*** symbol recognition accuracy was 94.52%,and the recall rate was 93.27%.The recognition accuracy in the text positioning stage was 97.26%and the recall rate was 90.27%.The recognition accuracy in the character recognition stage was 90.03%and the recall rate was 91.87%.The pipeline identification accuracy was 92.9%,and the recall rate was 90.36%.

关键词： Deep learning Image processing Piping and instrumentation Object recognition Pipeline recognition

尸体供者小肠、肝和肾脏器联合切取及保存技术

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中华移植杂志（电子版） 2010年第4期4卷 12-16页

作者：李元新李幼生李民南京军区南京总医院普通外科研究所 210002

目的建立尸体供者全腹腔脏器切取和保存技术,同时为不同的小肠移植、肝移植和肾移植受者提供供器官。方法共进行8次同一尸体供者的全腹腔脏器切取手术。供体切取经腹主动脉与肠系膜下静脉插管,高渗枸橼酸-腺苷肾保存液及UniversityofWis... 详细信息

目的建立尸体供者全腹腔脏器切取和保存技术,同时为不同的小肠移植、肝移植和肾移植受者提供供器官。方法共进行8次同一尸体供者的全腹腔脏器切取手术。供体切取经腹主动脉与肠系膜下静脉插管,高渗枸橼酸-腺苷肾保存液及UniversityofWisconsin液原位灌注,肝、小肠、胰腺、脾、肾整块切取。供器官经后台修整后,分别成为肝、小肠和肾移植物进行相应的受者移植手术。结果 8次供者腹腔脏器切取和后台修整手术共获取8具小肠移植物、8具肝移植物和16具肾移植物。利用所修整出的供器官成功地完成5次单独小肠移植、8次肝移植和16次肾移植,术后移植物功能良好。结论所建立的尸体供者全腹腔脏器切取和保存技术,可同时为不同的小肠移植、肝移植和肾移植受者提供供器官;借鉴美国匹兹堡大学的供者器官后台分离技术,还可同时为胰腺移植受者提供供器官。

关键词：器官切取器官保存小肠移植肝移植肾移植胰腺移植

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泰山黄伞的驯化培育研究

山东农业大学学报（自然科学版） 2003年第3期34卷 393-397页

作者：苏延友高丽君泰山医学院山东泰安271000

野生于泰山柳树上的黄伞是种名贵的食、药两用真菌 ,为将其驯化实现人工栽培 ,对其生物学特性、菌种的分离、培养、选育及各级菌种培养基和栽培料配方的选择等进行了观察、研究和试验。经几年的努力 ,基本掌握了泰山黄伞生长发育需要的... 详细信息

野生于泰山柳树上的黄伞是种名贵的食、药两用真菌 ,为将其驯化实现人工栽培 ,对其生物学特性、菌种的分离、培养、选育及各级菌种培养基和栽培料配方的选择等进行了观察、研究和试验。经几年的努力 ,基本掌握了泰山黄伞生长发育需要的各种条件 ,选育出H1、H3、H6三个速生高产、生物学效率可达 2 0 0 %左右的优质菌株。经大量栽培证明 ,泰山黄伞优质高产 ,适应性强 ,适于在全国推广。

关键词：泰山黄伞驯化培育生物学特性野生真菌

Research on the technical scheme of multi-stack common rail fuel cell engine based on the demand of commercial vehicle

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Energy and AI 2024年第2期16卷 241-255页

作者： Bo li Qianya Xie Jun li Ziliang Zhao Junming Lai Kang li Fojin Zhou Wuhan University of Technology Automotive Engineering CollegeWuhan430070China National energy key laboratory for new hydrogen-ammonia energy technologies Foshan Xianhu LaboratoryFoshan528200China Tsinghua University Beijing266590China Shandong University of Science and Technology Qingdao266590China

At present,most fuel cell engines are single-stack systems,and high-power single-stack systems have bottlenecks in meeting the power requirements of heavy-duty trucks,mainly because the increase in the single active area and the excessive number of cells will lead to poor distribution uniformity of water,gas and heat in the stack,which will cause local attenuation and reduce the performance of the *** paper introduces the design concept of internal combustion engine,takes three-stack fuel cell engine as an example,designs multi-stack fuel cell system scheme and serialized high-voltage *** Intelligent control technology of independent hydrogen injection based on multi-stack coupling,the hydrogen injection inflow of each stack is controlled online according to the real-time anode pressure to achieve accurate fuel injection of a single stack and ensure the consistency between multiple *** the performance advantage of multi-stack fuel cell engine through theoretical design,intelligent control and test verification,and focuses on analyzing the key technical problems that may exist in multi-stack *** research results provide a reference for the design of multi-stack fuel cell engines,and have important reference value for the powertrain design of long-distance heavy-duty and high-power fuel cell trucks.

关键词： Heavy truck Multi-stack Fuel cell engine Three stack Performance Consistency

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形神理论内涵研究方法探索——数据挖掘技术

中华中医药杂志 2007年第12期22卷 824-826页

作者：郑淑美胡立胜李友林王伟北京中医药大学北京100029 中日友好医院北京100029

形神理论是中医基础理论之一,在中医学的理论体系形成过程中占有重要的地位,具有指导临床实践的作用。形神理论的内涵非常丰富,而文本挖掘技术能从大量的文本信息中发现潜在的有价值的信息。本研究试图运用文本挖掘技术对形神理论的内... 详细信息

形神理论是中医基础理论之一,在中医学的理论体系形成过程中占有重要的地位,具有指导临床实践的作用。形神理论的内涵非常丰富,而文本挖掘技术能从大量的文本信息中发现潜在的有价值的信息。本研究试图运用文本挖掘技术对形神理论的内涵进行挖掘。将文本挖掘技术运用到形神内涵研究,为中医理论研究提供了一条新的思路。

关键词：形神理论数据挖掘文本挖掘

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推板式袋装物品棚车自动装载装置的虚拟开发

甘肃科学学报 2013年第4期25卷 74-78页

作者：李有堂李翔兰州理工大学数字制造技术与应用省部共建教育部重点实验室甘肃兰州730050 兰州理工大学机电工程学院甘肃兰州730050

根据火车棚车装载袋装物品的特点,提出一种适用于棚车袋装物品装载的推板式自动装载装置.对装置进行结构设计,分析装置的工作原理.应用Solidworks对装载机构进行虚拟建模,进行运动分析,并通过强度数值分析对比,验证装载装置的合理性.结... 详细信息

根据火车棚车装载袋装物品的特点,提出一种适用于棚车袋装物品装载的推板式自动装载装置.对装置进行结构设计,分析装置的工作原理.应用Solidworks对装载机构进行虚拟建模,进行运动分析,并通过强度数值分析对比,验证装载装置的合理性.结果表明:棚车自动装载装置可实现对袋装物品的夹取、自动码垛、运送等动作,具有结构简单、工作可靠等特点.

关键词：袋装物品棚车装载推板式运送装置码垛装置虚拟开发

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汽轮机轴封溢流改造可行性探讨

内燃机与配件 2017年第9期 17-18页

作者：李强向有丽华能瑞金发电有限责任公司赣州341000

哈尔滨汽轮机厂2号机组当负荷达到260MW时,汽轮机高、中压端轴封漏汽除了满足低压轴封系统的供汽需求外,还有一部分剩余的蒸汽经轴封溢流阀排出。由于设计原因,这部分蒸汽由轴封溢流管引至凝汽器低压疏水扩容器,使得这部分蒸汽不但没有... 详细信息

哈尔滨汽轮机厂2号机组当负荷达到260MW时,汽轮机高、中压端轴封漏汽除了满足低压轴封系统的供汽需求外,还有一部分剩余的蒸汽经轴封溢流阀排出。由于设计原因,这部分蒸汽由轴封溢流管引至凝汽器低压疏水扩容器,使得这部分蒸汽不但没有得到充分利用,反而增加了低压疏水扩容器的喷水,增大了凝结水泵的出力。本文提出改进方案,合理利用这部分蒸汽以减少热能损失,达到节能降耗的目的。

关键词：轴封溢流改造节能热能

Temporal assembly patterns of microbial communities in three parallel bioreactors treating low-concentration coking wastewater with differing carbon source concentrations

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Journal of Environmental Sciences 2024年第3期137卷 455-468页

作者： Weijia li Yu Xia Na li Jie Chang Jing liu Pei Wang Xuwen He School of Chemical and Environmental Engineering China University of Mining and Technology-BeijingBeijing 100083China

Carbon source is an important factor of biological treatment systems, the effects of which on their temporal community assembly patterns are not sufficiently understood *** this study, the temporal dynamics and driving mechanisms of the communities in three parallel bioreactors for low-concentration coking wastewater(CWW) treatment with differing carbon source concentrations(S0 with no glucose addition, S1 with 200 mg/L glucose addition and S2 with 400 mg/L glucose addition) were comprehensively studied. Highthroughput sequencing and bioinformatics analyses including network analysis and Infer Community Assembly Mechanisms by Phylogenetic bin-based null model(iCAMP) were used. The communities of three systems showed turnover rates of 0.0029~0.0034 every 15days. Network analysis results showed that the S0 network showed higher positive correlation proportion(71.43%) and clustering coefficient(0.33), suggesting that carbon source shortage in S0 promoted interactions and cooperation of microbes. The neutral community model analysis showed that the immigration rate increased from 0.5247 in S0 to 0.6478in S2. The iCAMP analysis results showed that drift(45.89%) and homogeneous selection(31.68%) dominated in driving the assembly of all the investigated microbial *** contribution of homogeneous selection increased with the increase of carbon source concentrations, from 27.92% in S0 to 36.08% in S2. The OTUs participating in aerobic respiration and tricarboxylic acid(TCA) cycle were abundant among the bins mainly affected by deterministic processes, while those related to the metabolism of refractory organic pollutants in CWW such as alkanes, benzenes and phenols were abundant in the bins dominated by stochastic processes.

关键词： Coking wastewater treatment Temporal dynamics Network analysis Deterministic processes Stochastic processes

儿童期腭裂合并分泌性中耳炎的临床特点及手术治疗效果观察

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临床和实验医学杂志 2018年第6期17卷 658-660页

作者：李瑾陶峥李幼瑾上海交通大学医学院附属上海儿童医学中心耳鼻咽喉科上海200127

目的探讨儿童期腭裂合并分泌性中耳炎的的临床特征,腭裂修复后行等离子鼓膜打孔治疗分泌性中耳炎的临床效果。方法选择2014年12月至2016年12月上海交通大学医学院附属上海儿童医学中心收治的70例腭裂合并分泌性中耳炎患儿作为研究对象... 详细信息

目的探讨儿童期腭裂合并分泌性中耳炎的的临床特征,腭裂修复后行等离子鼓膜打孔治疗分泌性中耳炎的临床效果。方法选择2014年12月至2016年12月上海交通大学医学院附属上海儿童医学中心收治的70例腭裂合并分泌性中耳炎患儿作为研究对象进行前瞻性研究,53例(共106耳)为双侧中耳积液,17例(共17耳)为单侧中耳积液。经改良兰氏法修复腭裂,修复腭裂后用等离子鼓膜打孔治疗分泌性中耳炎,术后对患者进行语言训练。比较术后语音清晰度、V波反应阈值和听力损失情况。结果 57.14%患儿鼓室中的积液为黏稠的积液,42.86%患儿鼓室中的积液为稀薄的积液;治疗后的语音清晰度显著地高于治疗前(P<0.05);术后的V波反应阈值显著低于术前,术后的听力损失情况显著好于术前(P<0.05)。结论儿童期腭裂合并分泌性中耳炎的患儿的鼓室中的积液多为黏稠状,采用改良兰氏修复法和术后语言训练可以治疗腭裂和腭裂语音,采用等离子鼓膜打孔技术则可以有效地治疗分泌性中耳炎。

关键词：儿童腭裂分泌性中耳炎改良兰氏法等离子鼓膜打孔