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Real-time prediction of mechanical behaviors of underwater shield tunnel structure using machine learning method based on structural health monitoring data 被引量:1
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作者 Xuyan Tan Weizhong Chen +2 位作者 Tao Zou Jianping Yang Bowen Du 《Journal of Rock Mechanics and Geotechnical Engineering》 SCIE CSCD 2023年第4期886-895,共10页
Predicting the mechanical behaviors of structure and perceiving the anomalies in advance are essential to ensuring the safe operation of infrastructures in the long run.In addition to the incomplete consideration of i... Predicting the mechanical behaviors of structure and perceiving the anomalies in advance are essential to ensuring the safe operation of infrastructures in the long run.In addition to the incomplete consideration of influencing factors,the prediction time scale of existing studies is rough.Therefore,this study focuses on the development of a real-time prediction model by coupling the spatio-temporal correlation with external load through autoencoder network(ATENet)based on structural health monitoring(SHM)data.An autoencoder mechanism is performed to acquire the high-level representation of raw monitoring data at different spatial positions,and the recurrent neural network is applied to understanding the temporal correlation from the time series.Then,the obtained temporal-spatial information is coupled with dynamic loads through a fully connected layer to predict structural performance in next 12 h.As a case study,the proposed model is formulated on the SHM data collected from a representative underwater shield tunnel.The robustness study is carried out to verify the reliability and the prediction capability of the proposed model.Finally,the ATENet model is compared with some typical models,and the results indicate that it has the best performance.ATENet model is of great value to predict the realtime evolution trend of tunnel structure. 展开更多
关键词 shied tunnel Machine learning MONITORING Real-time prediction Data analysis
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海水网箱养殖高体Shi弧菌病致病菌研究 被引量:41
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作者 吴后波 潘金培 《水产学报》 CAS CSCD 北大核心 1997年第2期171-174,共4页
从患病高体Shi病灶上分离到7株可疑致病菌,人工感染试验证明,菌株95-5-3和95-5-5为强毒菌株,这2株菌进行人工感染,死亡率均为100%,症状与自然发病相似。这2株菌的特征一致,根据形态有主生理生化特征,应归... 从患病高体Shi病灶上分离到7株可疑致病菌,人工感染试验证明,菌株95-5-3和95-5-5为强毒菌株,这2株菌进行人工感染,死亡率均为100%,症状与自然发病相似。这2株菌的特征一致,根据形态有主生理生化特征,应归入哈维氏弧菌。药敏实验的结果表明,磺胺类药物和先锋必素对致病菌有较强的抑制作用。 展开更多
关键词 高体shi 弧菌病 哈维氏弧菌 海水 网箱养殖
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一种探测shill出价的数据挖掘模型 被引量:6
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作者 罗掌华 陈芝 刘鲁 《系统工程》 CSCD 北大核心 2004年第10期101-104,共4页
随着网上拍卖规模的不断扩大,作为最具隐蔽性的在线欺诈形式,shill出价开始引起人们的广泛关注,但由于传统拍卖理论缺乏对shill出价理论的研究,致使至今仍无有效的方法制约shill出价。本文通过引入生物信息学方法,模拟生物基因的遗传变... 随着网上拍卖规模的不断扩大,作为最具隐蔽性的在线欺诈形式,shill出价开始引起人们的广泛关注,但由于传统拍卖理论缺乏对shill出价理论的研究,致使至今仍无有效的方法制约shill出价。本文通过引入生物信息学方法,模拟生物基因的遗传变异特性,在基于shill出价规律序列具有遗传变异的基础上,提出了一种探测shill出价规律序列的数据挖掘模型,模型克服了传统方法因shill可能频繁变更用户ID而失灵的问题。 展开更多
关键词 shi11出价 数据挖掘 出价序列 在线拍卖欺诈 遗传变异规律
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硼替佐米对急性单核细胞白血病细胞株SHI-1诱导凋亡作用及其对Bcl2l12、Bcl-2和Bax基因表达影响 被引量:2
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作者 牧启田 欧阳桂芳 +5 位作者 楼燕如 陈晓蓓 陆滢 梁伟 张怡 徐薇 《中国实验血液学杂志》 CAS CSCD 2008年第5期1016-1020,共5页
本研究探讨蛋白酶抑制剂硼替佐米对急性单核细胞白血病细胞株SHI-1增殖和凋亡的影响及Bcl2l12、Bcl-2和Bax基因在其中的作用。用MTT比色法观察硼替佐米对SHI-1细胞的生长抑制作用,用Annexin-V标记、线粒体跨膜电位(Δψm)和DNA凝胶电泳... 本研究探讨蛋白酶抑制剂硼替佐米对急性单核细胞白血病细胞株SHI-1增殖和凋亡的影响及Bcl2l12、Bcl-2和Bax基因在其中的作用。用MTT比色法观察硼替佐米对SHI-1细胞的生长抑制作用,用Annexin-V标记、线粒体跨膜电位(Δψm)和DNA凝胶电泳分析细胞凋亡,用RT-PCR方法检测0、6,12和24小时Bcl2l12、Bcl-2和Bax基因表达。结果表明,硼替佐米呈时间和剂量依赖性抑制SHI-1细胞生长,24小时和48小时半数抑制浓度分别为54.13 nmol/L和5.45 nmol/L;硼替佐米能够诱导SHI-1细胞凋亡,在6小时Annexin-V阳性细胞就开始增高并呈时间依赖性,Δψm减低,形态学可见明显细胞核凝聚、固缩和碎裂,DNA凝胶电泳显示DNA片段化;RT-PCR显示,Bcl2l12表达增高,Bcl-2表达减低,但Bax表达无明显改变。结论:硼替佐米抑制SHI-1细胞增殖,并可能通过上调Bcl2l12基因和下调Bcl-2基因,使线粒体膜电位下降而促使SHI-1细胞发生凋亡。 展开更多
关键词 硼替佐米 shi—1细胞 细胞凋亡 Bcl2112基因 BCL-2基因 BAX基因 急性单核细胞白血病
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1,25-(OH)_2 D_3对白血病细胞株K562和SHI-1 ppGalNAcTs表达的影响 被引量:1
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作者 郭向红 莫建华 +2 位作者 潘浩 金美芳 吴士良 《江苏大学学报(医学版)》 CAS 2005年第1期17-20,24,共5页
目的:探讨在维生素D3的作用下,白血病细胞株K562与SHI-1ppGalNAcTs表达的变化。方法:应用RT-PCR法研究在不同浓度维生素D3的作用下,白血病细胞株K562与SHI-1ppGalNAcTs表达的变化。结果1,25-(OH)2D3(10-6-10-8mol/L)可分别上调K562细胞... 目的:探讨在维生素D3的作用下,白血病细胞株K562与SHI-1ppGalNAcTs表达的变化。方法:应用RT-PCR法研究在不同浓度维生素D3的作用下,白血病细胞株K562与SHI-1ppGalNAcTs表达的变化。结果1,25-(OH)2D3(10-6-10-8mol/L)可分别上调K562细胞株ppGalNAcT2、T4、T5的表达。但在SHI-I细胞株,随着1,25-(OH)2D3浓度的增加ppGalNAcTI表达增加,T3表达没有变化、T4表达减少。结论:白血病细胞株K562与SHI-1PP-GMNAcTs的表达不同。在不同浓度维生素D3的作用下,白血病细胞株K562与SHI-IppGalNAcTs表达的变化也不同,说明不同ppGalNAcTs对1,25-(OH)2D3的反应不同。 展开更多
关键词 shi 表达 白血病细胞株 K562 NA 1 25-(OH)2D3 维生素D3 变化 RT-PCR法 反应
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拟南芥SHI基因在烟草中的表达和矮化、延迟开花的烟草植株的获得 被引量:1
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作者 彭世清 陈守才 《应用与环境生物学报》 CAS CSCD 北大核心 2005年第4期416-418,共3页
利用聚合酶链式反应(PCR)从拟南芥基因组DNA中克隆了拟南芥SHOTINTERNODS(SHI)基因,并进行了序列测定.以载体pBI121为基本骨架构建了SHI的植物表达载体,并导入根癌农杆菌EHA105.通过农杆菌介导的叶盘法将拟南芥SHI基因转入烟草.PCR和RT-... 利用聚合酶链式反应(PCR)从拟南芥基因组DNA中克隆了拟南芥SHOTINTERNODS(SHI)基因,并进行了序列测定.以载体pBI121为基本骨架构建了SHI的植物表达载体,并导入根癌农杆菌EHA105.通过农杆菌介导的叶盘法将拟南芥SHI基因转入烟草.PCR和RT-PCR检测证明,拟南芥SHI基因已整合到烟草基因组中并得以表达,获得了矮化、延迟开花的烟草植株. 展开更多
关键词 拟南芥 shi基因 转化 矮化 烟草
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杜氏Shi链球菌病及其他常见病害防治的研究 被引量:5
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作者 纪荣兴 胡石柳 《福建水产》 1998年第1期27-32,共6页
本文报道网箱养殖杜氏Shi链球菌及其他常见病害的防治。链球菌病的防治:鱼种阶段在饲料中加入氨苄青霉素7.5g/1000尾/d,每个疗程5-7d,隔7-10d进行下一次疗程,使用4个疗程,90d内不发病;成鱼采用肌肉注... 本文报道网箱养殖杜氏Shi链球菌及其他常见病害的防治。链球菌病的防治:鱼种阶段在饲料中加入氨苄青霉素7.5g/1000尾/d,每个疗程5-7d,隔7-10d进行下一次疗程,使用4个疗程,90d内不发病;成鱼采用肌肉注射青霉素G,剂量为;体重400-500g注射20-40万IU/尾,体重500-1000g注射40-80万IU/尾、体重1000g以上注射80万IU/尾1-3次。 展开更多
关键词 杜氏shi 链球菌病 网箱养殖 常见病害 防治
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Na_2Cu_5Shi_4·4H_2O配合物的合成、结构及性质研究
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作者 杨斌盛 胡永钢 +1 位作者 陈兆斌 刘文 《光谱学与光谱分析》 SCIE EI CAS CSCD 北大核心 2002年第6期941-944,共4页
合成了Na2 Cu5Shi4 ·4H2 O配合物 ,经元素分析 ,IR ,UV ,NMR ,荧光及分子力学计算等表征了配合物的结构。 2D1 HNMR谱及磁矩等测定表明 ,配合物中水杨酰肟酸π电子分布有大的改变 ,最大吸收峰红移 2 5nm ,芳环d质子表现出烷烃质子... 合成了Na2 Cu5Shi4 ·4H2 O配合物 ,经元素分析 ,IR ,UV ,NMR ,荧光及分子力学计算等表征了配合物的结构。 2D1 HNMR谱及磁矩等测定表明 ,配合物中水杨酰肟酸π电子分布有大的改变 ,最大吸收峰红移 2 5nm ,芳环d质子表现出烷烃质子性质 ;铜离子之间有强的磁相互作用 ,基态S为 1/2。 展开更多
关键词 Na2Cu5shi4·4H2O 合成 结构 水杨酰肟酸 配合物 性质 金属冠醚
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Genome-wide identification,characterization and functional prediction of the SRS gene family in sesame(Sesamum indicum L.)
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作者 Farjana Afroz Susmi Tasmina Islam Simi +1 位作者 Md Nahid Hasan Md Abdur Rahim 《Oil Crop Science》 CSCD 2024年第2期69-80,共12页
Sesame(Sesamum indicum L.)is an ancient oilseed crop of the Pedaliaceae family with high oil content and potential health benefits.SHI RELATED SEQUENCE(SRS)proteins are the transcription factors(TFs)specific to plants... Sesame(Sesamum indicum L.)is an ancient oilseed crop of the Pedaliaceae family with high oil content and potential health benefits.SHI RELATED SEQUENCE(SRS)proteins are the transcription factors(TFs)specific to plants that contain RING-like zinc finger domain and are associated with the regulation of several physiological and biochemical processes.They also play vital roles in plant growth and development such as root formation,leaf development,floral development,hormone biosynthesis,signal transduction,and biotic and abiotic stress responses.Nevertheless,the SRS gene family was not reported in sesame yet.In this study,identification,molecular characterization,phylogenetic relationship,cis-acting regulatory elements,protein-protein interaction,syntenic relationship,duplication events and expression pattern of SRS genes were analyzed in S.indicum.We identified total six SiSRS genes on seven different linkage groups in the S.indicum genome by comparing with the other species,including the model plant Arabidopsis thaliana.The SiSRS genes showed variation in their structure like2–5 exons and 1–4 introns.Like other species,SiSRS proteins also contained‘RING-like zinc finger'and‘LRP1'domains.Then,the SiSRS genes were clustered into subclasses via phylogenetic analysis with proteins of S.indicum,A.thaliana,and some other plant species.The cis-acting regulatory elements analysis revealed that the promoter region of SiSRS4(SIN_1011561)showed the highest 13 and 16 elements for light-and phytohormone-responses whereas,SiSRS1(SIN_1015187)showed the highest 15 elements for stress-response.The ABREs,or ABA-responsive elements,were found in a maximum of 8 copies in the SiSRS3(SIN 1009100).Moreover,the available RNA-seq based expression of SiSRS genes revealed variation in expression patterns between stress-treated and non-treated samples,especially in drought and salinity conditions in.S.indicum.Two SiSRS genes like SiSRS1(SIN_1015187)and SiSRS5(SIN_1021065),also exhibited variable expression patterns between control vs PEG-treated sesame root samples and three SiSRS genes,including SiSRS1(SIN_1015187),SiSRS2(SIN_1003328)and SiSRS5(SIN_1021065)were responsive to salinity treatments.The present outcomes will encourage more research into the gene expression and functionality analysis of SiSRS genes in S.indicum and other related species. 展开更多
关键词 SiSRS gene family shi Transcription factor CHARACTERIZATION Sesamum indicum
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Shi鱼养殖技术浅谈 被引量:1
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作者 吴后波 潘金培 《南海研究与开发》 1996年第4期50-54,共5页
介绍了Shi鱼的生物学特征;并从养殖场地的选择,养殖设备的选择,苗种的培育以及Shi鱼的养成等几个方面介绍了Shi鱼的养殖技术,最后分析了Shi鱼养殖在我国的发展前景。
关键词 shi 养殖技术 养殖场地 海水养鱼
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An Overview of the Achievements of Modern Research on the Flying Shadow Pavilion Pictorial
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作者 CHEN Honghui 《Cultural and Religious Studies》 2024年第2期118-122,共5页
The current academic research on the Dian Shi Zhai Pictorial founded in 1884 has been perfected,but there is very little research on the Flying Shadow Pavilion Pictorial,which can be said to be derived from Dian Shi Z... The current academic research on the Dian Shi Zhai Pictorial founded in 1884 has been perfected,but there is very little research on the Flying Shadow Pavilion Pictorial,which can be said to be derived from Dian Shi Zhai Pictorial terms of both content and form,and which was founded by the Haiist painter Wu Youru in 1890 in order to reward the increasing number of admirers,but it is still in the initial stage.Flying Shadow Pavilion Pictorial consisted of four parts:pictures of ladies in Shanghai costumes,news about current affairs,pictures of animals,and compilations of women,each of which was accompanied by the then popular notebooks,which were popular at the time among the then readers because of the matching of pictures with text and the mixing of narratives and discussions.This paper takes Flying Shadow Pavilion Pictorial as the main object,summarizes the existing literature about Flying Shadow Pavilion Pictorial,points out the deficiencies of the current research on this basis,and points out the development trend of Flying Shadow Pavilion Pictorial in the future research. 展开更多
关键词 Flying Shadow Pavilion Pictorial Dian shi Zhai Pictorial Late Qing Dynasty’s pictorial
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高体Shi的摄食与温度,透明度的关系
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作者 陈昌生 黄佳鸣 《集美大学学报(自然科学版)》 CAS 北大核心 1996年第2X期75-79,共5页
高体Shi的摄食与温度,透明度有密切关系。冬季水温代于12℃,不摄食;水温高于13℃,开始摄食;春季水温上升,摄食量变大;夏季水温为25-27℃时,日摄食量达到最大;秋季水温下降,摄食量逐渐减少。
关键词 高体shi 摄食 温度 透明度 海水鱼 养殖
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读睡虎地书信木牍札记三则
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作者 聂菲 《出土文献》 2024年第1期56-62,171,共8页
本文是有关睡虎地书信木牍字词释读的三则短札。第一则认为“寄气(乞)就书”应理解为“寄给就的书信”,“寄乞”与“寄遗”“乞匃”相类。第二则指出“自以布此”是“自以布为襌裙、襦于此”的省略。第三则指出“直佐”与“直符”“直... 本文是有关睡虎地书信木牍字词释读的三则短札。第一则认为“寄气(乞)就书”应理解为“寄给就的书信”,“寄乞”与“寄遗”“乞匃”相类。第二则指出“自以布此”是“自以布为襌裙、襦于此”的省略。第三则指出“直佐”与“直符”“直候”“直更”结构相似,并在此基础上讨论了《晏子春秋》“直使”、《战国策》“直送”的语义。 展开更多
关键词 睡虎地木牍 寄乞就书 自以布此 直使
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Introduction to "Ma Shi Wen Tong"
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作者 张楠 《科教导刊》 2015年第10X期23-24,共2页
As the first works of Chinese grammar, "Ma Shi Wen Tong" has epoch-making significance in the history of Chinese grammar. It marks that Chinese grammar study has become an independent science. This research ... As the first works of Chinese grammar, "Ma Shi Wen Tong" has epoch-making significance in the history of Chinese grammar. It marks that Chinese grammar study has become an independent science. This research intends to generalize "Wen Tong". 展开更多
关键词 GRAMMAR MA shi WEN Tong
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不锈钢零件电镀锡shi合金 被引量:2
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作者 谭琼林 高军 《材料保护》 CAS CSCD 北大核心 1990年第11期30-32,共3页
不锈钢电镀锡铈合金,可提高不锈钢的焊接性,使不锈钢在电子行业的应用更加广泛,具有较高的推广价值。由于不锈钢含有较多的镍铬元素,表面易生成一层致密的氧化膜,这层氧化膜有较高的钝态,在不锈钢表面很难得结合力牢固的电镀层。如果要... 不锈钢电镀锡铈合金,可提高不锈钢的焊接性,使不锈钢在电子行业的应用更加广泛,具有较高的推广价值。由于不锈钢含有较多的镍铬元素,表面易生成一层致密的氧化膜,这层氧化膜有较高的钝态,在不锈钢表面很难得结合力牢固的电镀层。如果要在不锈钢表面上获得理想的、结合力牢固的电镀层,必须攻克两大难关:第一是在施镀前破坏不锈钢表面的钝态膜;第二是应立即镀上一层薄的电镀层,再镀中间层,然后才能镀锡铈合金。但不锈钢表面的钝态膜用常规方法酸洗是除不掉的,尤其是小形易重叠零件的钝态膜更难除掉,我们在不锈钢零件镀锡铈合金的生产实践中感到阴极电解活化,再高氯闪镍效果较好。具体工艺过程如下: 展开更多
关键词 电镀 不锈钢 零件 shi合金
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Determination of 13 Trace Elements in Anshun Thorn Pear (Rosa roxburghii) and Golden Thorn Pear (Rosa sterilis S.D.Shi) by ICP-MS 被引量:2
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作者 Wei CHEN Kaibin LI +2 位作者 Qiuyue KONG Sibu MA Wen YANG 《Agricultural Biotechnology》 CAS 2019年第2期157-159,231,共4页
[Objectives] This study was conducted to establish an analytical method for the establishment of 13 trace elements in Anshun thorn pear(Rosa roxburghii) and golden thorn pear(Rosa sterilis S. D. Shi). [Methods] Nitric... [Objectives] This study was conducted to establish an analytical method for the establishment of 13 trace elements in Anshun thorn pear(Rosa roxburghii) and golden thorn pear(Rosa sterilis S. D. Shi). [Methods] Nitric acid was used as the digestion system for microwave digestion. Inductively coupled plasma mass spectrometry(ICP-MS) was used to determine the trace elements in thorn pear and golden thorn pear. [Results] Be, Ti, V, Cr, Mn, Co, Ni, As, Sr, Mo, Cd, Sb and Hg were determined by ICP-MS method in thorn pear and golden thorn pear. The correlation coefficients of the regression equations of the elements were higher than 0.996; the precision RSD was lower than 2.87%; and the recovery ranged from 94.3% to 109.8%. [Conclusions] The method has the advantages of high sensitivity, good accuracy and simultaneous detection of multiple elements, and provides a reference method and theoretical basis for determining trace elements in thorn pear and golden thorn pear and other fruits. 展开更多
关键词 Inductively coupled plasma mass spectrometry Microwave DIGESTION method ROSA roxburghii ROSA sterilis S. D. shi Element analysis
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A Comparative Study of Two Spanish Versions of the Poem Junzi Xielao of Shi Jing 被引量:1
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作者 WU Qian 《Journal of Literature and Art Studies》 2019年第2期175-182,共8页
The purpose of this paper is to do a comparative study of two complete Spanish versions of Shi Jing with a detailed analysis of the poem Junzi Xielao.The culture and personal backgrounds of the two translators,their t... The purpose of this paper is to do a comparative study of two complete Spanish versions of Shi Jing with a detailed analysis of the poem Junzi Xielao.The culture and personal backgrounds of the two translators,their translation purposes and intended readers largely influenced the translating style and technique of the two versions. 展开更多
关键词 shi Jing SPANISH TRANSLATION TRADITIONAL Chinese culture extratextual factors
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Review: Hu Houxuan, "Xia and the Tu State in the Oracle Inscriptions: A Consideration" Gudai Chengbang Shi Yanjiu (Studies on Ancient City States) Renmin Press, 1989, Pp. 340-353. 被引量:1
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作者 RiZhi 《Journal of Ancient Civilizations》 1995年第0期147-148,共2页
This article verified that the Tu state mentioned in the oracle inscriptions was the Xia people after the Xia Dynasty had been conquered by Tang, the first king of the Shang Dynasty m c.a. 16th century B.C. The state... This article verified that the Tu state mentioned in the oracle inscriptions was the Xia people after the Xia Dynasty had been conquered by Tang, the first king of the Shang Dynasty m c.a. 16th century B.C. The state of Xia, which originated from Yu, was entitled "Xia Hou"; its king was hence called "Xia Hou Di" (Emperor of Xia Hou), e.g."Xia Hou Di Qi". The Xia people, together with the Yin (Shang) people, and the Zhou people, were the so-called "people of San Dai" (Three Dynasties). As mentioned in "Lunyu, Bayi", they founded the states, with the Xia people being associated with the pine, the Yin people with the cypress, and the Zhou people with the chestnut. 展开更多
关键词 A Consideration Renmin Press Studies on Ancient City States Xia and the Tu State in the Oracle Inscriptions Hu Houxuan Gudai Chengbang shi Yanjiu
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日本关于杜氏Shi的养殖发展动态 被引量:1
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作者 邢树源 《南海研究与开发》 1994年第4期39-47,共9页
关键词 杜氏shi shi 养殖 日本
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An Analysis of Tree English Translations of “To the Tune of ‘Water Dragon Song^1’” by Su Shi
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作者 谭敏 《海外英语》 2014年第11X期153-154,共2页
Su Shi is known for his poems of haofang style as well as wanyue style. The author takes a comparative reading of three English renderings of"Water Dragon Song"; both achievements and problems in each versio... Su Shi is known for his poems of haofang style as well as wanyue style. The author takes a comparative reading of three English renderings of"Water Dragon Song"; both achievements and problems in each version are discussed regarding imagery, meaning, poet's sentiments and poetic atmosphere, for the purpose of working out a better rendering. 展开更多
关键词 Su shi WATER DRAGON SONG WILLOW catkins translatio
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