检索结果-南通市图书馆

An Emotion Analysis Method Using Multi-Channel Convolution Neural Network in Social Networks

Computer Modeling in Engineering & Sciences 2020年第10期125卷 281-297页

作者： xinxin lu Hong Zhang School of Computer Science and Technology Zhoukou Normal UniversityZhoukou466001China School of Network Engineering Zhoukou Normal UniversityZhoukou466001China

As an interdisciplinary comprehensive subject involving multidisciplinary knowledge,emotional analysis has become a hot topic in psychology,health medicine and computer *** has a high comprehensive and practical application *** research based on the social network is a relatively new topic in the field of psychology and medical health *** text emotion analysis of college students also has an important research significance for the emotional state of students at a certain time or a certain period,so as to understand their normal state,abnormal state and the reason of state change from the information they *** view of the fact that convolutional neural network cannot make full use of the unique emotional information in sentences,and the need to label a large number of highquality training sets for emotional analysis to improve the accuracy of the model,an emotional analysismodel using the emotional dictionary andmultichannel convolutional neural network is proposed in this ***,the input matrix of emotion dictionary is constructed according to the emotion information,and the different feature information of sentences is combined to form different network input channels,so that the model can learn the emotion information of input sentences from various feature representations in the training ***,the loss function is reconstructed to realize the semi supervised learning of the ***,experiments are carried on COAE 2014 and self-built data *** proposed model can not only extract more semantic information in emotional text,but also learn the hidden emotional information in emotional *** experimental results show that the proposed emotion analysis model can achieve a better classification *** with the best benchmark model gram-CNN,the F1 value can be increased by 0.026 in the self-built data set,and it can be increased by 0.032 in the COAE 2014 data set.

关键词： Emotion analysis model emotion dictionary convolution neural network semi supervised learning deep learning pooling feature feature mapping

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Distribution and contamination of metals and biogenic elements in sediments from Zhifu Bay of the Yellow Sea,China

引用

Journal of Environmental Sciences 2016年第3期28卷 6-15页

作者： Zhaohui Wang xinxin lu Ke Zhang College of Life Science and Technology Key Laboratory of Eutrophication and Red Tide Prevention of Guangdong Higher Education InstitutesJinan University

Metals and biogenic elements were analyzed from surface sediments of sixteen stations and a 32 cm core collected from Zhifu Bay in July *** concentrations of biogenic silica（BSi）reflected the high diatom productivity in the ***,total organic carbon（TOC）in Zhifu Bay was mainly from terrestrial *** metals were lower than the marine sediment quality *** on the vertical profiles of biogenic elements,there was a clear increase of TOC,total nitrogen（TN）,and total phosphate（TP）between1985 and *** concentrations decreased after the start of the operation of the sewage treatment plant in 1998;however TOC and BSi remained at high *** concentrations showed a general increase from the bottom to the top of the *** anthropogenic metals reached a maximum during 1996 and 2000,and decreased after the startup of the sewage plant;however,they have increased again *** results from correlation analysis and principal component analysis show that industrial pollution is the main source of Cd,Cr,Cu,Ni,Pb and Zn contamination in Zhifu Bay,and Yantai Port and ship transportation also contribute a lot to Cd,Cu,Hg,and Pb pollution.

关键词： Metals Biogenic elements Sediments Sediment criteria The Yellow Sea

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Seasonal shifts in assembly dynamics of phytoplankton communities in a humans-affected river in NE China

引用

Journal of Oceanology and Limnology 2022年第5期40卷 1985-2000页

作者： Zhenxiang LI xinxin lu Yawen FAN College of Life Science and Technology Harbin Normal UniversityHarbin 150025China Key Laboratory of Biodiversity of Aquatic Organisms Harbin Normal UniversityHarbin 150025China

Identifying seasonal shift in phytoplankton community is essential for understanding the significance of eutrophication and finding biological indicators of ecological health of a lotic *** communities,as well as the seasonal changes in the Ashi River Basin(ASRB)of Heilongjiang Province were investigated from April 2018 to January 2019.A survey in April(spring),July(summer),October(autumn),and January(winter)at 16 sampling sites was *** composition,abundance,and biodiversity indices of phytoplankton were studied and 127 taxa of phytoplankton were *** them,Bacillariophyta dominated the phytoplankton communities in the whole *** were significant spatio-temporal changes in the structures of the phytoplankton communities during the study *** state index(TSI)show that the nutritional status of the ASRB was at mesotrophic-middle eutrophic *** analysis(RDA)revealed that total nitrogen(TN),water temperature(WT),oxidation reduction potential(ORP),pH,and dissolved oxygen(DO)were the critical factors in the dynamic phytoplankton community *** multivariate regression tree(MRT)analysis showed that Chlamydomonas microsphaerella Pascher et Jahoda,Melosira granulata(Ehrenberg)Ralfs,Merismopedia tenuissima Lemmermann,and Asterionella formosa Hassall were valuable indicators in the determination of water quality in *** findings provide a scientific basis for water quality protection and management at basin scale.

关键词： Ashi River Basin eutrophication community structure succession indicator

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Metagenomes of polyamine-transforming bacterioplankton along a nearshore-open ocean transect

引用

Marine Life Science & Technology 2022年第2期4卷 268-276页

作者： xinxin lu Kai Wang Xiaozhen Mou Department of Biological Sciences Kent State UniversityKentOHUSA

Short-chained aliphatic polyamines (PAs) have recently been recognized as an important carbon, nitrogen, and/or energy source for marine bacterioplankton. To study the genes and taxa involved in the transformations of different PA compounds and their potential variations among marine systems, we collected surface bacterioplankton from nearshore, offshore, and open ocean stations in the Gulf of Mexico and examined their metagenomic responses to additions of single PA model compounds (putrescine, spermidine, or spermine). Genes affiliated with PA uptake and all three known PA degradation pathways, i.e., transamination, γ-glutamylation, and spermidine cleavage, were significantly enriched in most PA-treated metagenomes. In addition, identified PA-transforming taxa were mostly the alpha and gamma classes of Proteobacteria, with less important contributions from members of Betaproteobacteria, Actinobacteria, Bacteroidetes, Cyanobacteria, Firmicutes, and Planctomycetes. These findings suggest that PA transformations are ubiquitous, have diverse pathways, and are carried out by a broad range of the bacterioplankton taxa in the Gulf of Mexico. Identified PA-transforming bacterial genes and taxa were different among nearshore, offshore, and open ocean sites, but were little different among individual compound-amended metagenomes at any specific site. These observations further indicate that PA-transforming taxa and genes are site-specific and with high similarities among PA compounds.

关键词： Polyamines Microbial transformation Putrescine Spermidine Spermine

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Establishment of a diatom-total phosphorus transfer function for lakes on the Songnen Plain in northeast China

引用

Journal of Oceanology and Limnology 2020年第6期38卷 1771-1786页

作者： SUI Fengyang ZANG Shuying FAN Yawen lu xinxin HUI Hongkuan Key Laboratory of Remote Sensing Monitoring of Geographic Environment College of Heilongjiang ProvinceHarbin Normal UniversityHarbin 150025China Key Laboratory of Biodiversity of Aquatic Organisms Harbin Normal UniversityHarbin 150025China Qilu Normal University Jinan 250200China

To understand the relationship between planktonic diatoms and environmental variables in the lakes on the Songnen Plain,northeast(NE)China,we investigated water quality and planktonic diatoms from 71 sampling points in 27 lakes,based on which Canonical Correspondence Analysis(CCA)was *** result show that planktonic diatoms displayed certain responses to environment gradients,and the total phosphorus(TP)explained the maximum variation of planktonic diatom species among the 15 environmental variables,suggesting that TP was the most important and significant environmental parameter affecting the distribution of diatom *** addition,we established a diatom-total phosphorus transfer(DTPT)function,of which component 5 of the weighted averaging partial least squares regression(WAPLS)was chosen to and compared with a series of weighted average regression(WA)models and WA-PLS *** to the jackknifing statistical test,the component 5 of WA-PLS models provided a lower root-mean-square error prediction(RMSEP=0.202)and a higher correlation coefficient between observation and prediction(R^2_Jack=0.759).After deletion of three outliers,the root-mean-square error prediction of the DTPT function was reduced(RMSEP=0.169)while the correlation coefficient between observation and prediction was increased(R^2_Jack=0.823).Therefore,this DTPT function performed better than other regional TP models in the ***,it remains demanding for expanding the background dataset to improve the prediction ability of the model.

关键词： Songnen Plain diatom total phosphorus transfer function

来源：

维普期刊数据库

同方期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A comparison of n-γ discrimination by the rise-time and zero-crossing methods

引用

Science China(Physics,Mechanics & Astronomy) 2010年第8期53卷 1453-1459页

作者： Jie Yan Rong Liu Cheng Li Li Jiang xinxin lu Department of Modern Physics University of Science and Technology of China Hefei China Institute of Nuclear Physics and Chemistry Chinese Academy of Engineering Physics Mianyang China

The n-γ discrimination performance of two experimental arrangements based on the rise-time method and the zero-crossing method was compared for a 50.8 mm-diametered and 50.8 mm-high BC501A liquid scintillator coupled to a 50.8 mm-diametered 9807B photomultiplier in this work. The low energy limitation of the detected neutron with different detector high voltages and the figure of merit of the n-γ discrimination in four neutron energy regions (1–2 MeV, 0.75–1 MeV, 0.5–0.75 MeV and below 0.5 MeV) were studied by using the Am-Be neutron source. Under a time statistical model of the photoelectron emission process in scintillation counters, the intrinsic capability of the n-γ discrimination performance under the optimal condition was evaluated. The experimental results of the zero-crossing method demonstrate a better n-γ. discrimination performance than those of the rise-time method, which is consistent with the calculated results.

关键词： rise-time method zero-crossing method n-g discrimination time statistics analysis BC501A scintillation detector

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Study of infectious conjunctivitis among children in rural areas of Qinghai province

引用

Science China(Life Sciences) 2016年第6期59卷 548-554页

作者： Qingfeng Liang xinxin lu Mei Wang Lei Tian Antoine Labbé Ailian Hu Beijing Institute of Ophthalmology Beijing Tongren Eye CenterBeijing Tongren HospitalCapital Medical UniversityBeijing Key Laboratory of Ophthalmology and Visual SciencesBeijing 100005China Quinze-Vingts National Ophthalmology Hospital Paris and Versailles Saint-Quentin-en-Yvelines UniversityVersailles F-75002 France 31NSERM U968UPMC Univ Paris 06UMR_S 968institut de la VisionCNRSUMR_7210Paris F-75012France

Infectious conjunctivitis is no longer a common eye disease in cities and developed areas, but in remote mountainous regions of China where living conditions are relatively under-developed, the occurrence of infectious conjunctivitis remains a public health issue. Here, we evaluate the ratio of infectious conjunctivitis among primary school students in the rural areas of Xunhua, Huangyuan, and Huzhu Counties in the Qinghai province of China, and report the microorganisms involved in causing infection. Of the 765 eligible primary school students, 694 participated to this study(a response rateof 90.7%), 381 boys and 313 girls, with a mean age of 7.52 years(range 7–9 years). A clinical diagnosis of infectious conjunctivitis was returned for 238 of the 694 children examined. The ratio of infectious conjunctivitis in Xunhua County(46.64%) was higher compared to that in Huangyuan(26.67%; P=0.03) and Huzhu Counties(23.61%; P=0.02). The leading cause of conjunctivitis was bacterial, followed by chlamydial and viral. Our results show that there is a high ratio of infectious conjunctivitis among rural primary school students in Qinghai province.

关键词： conjunctivitis rural children bacteria chlamydia

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Etiological characteristics of chlamydia trachoma conjunctivitis of Primary Boarding School students in the Qinghai Tibetan area

引用

Science China(Life Sciences) 2016年第6期59卷 555-560页

作者： Mei Wang xinxin lu Ailian Hu Mingxin Zhang Xue Li Shijing Deng Ningli Wang Beijing Institute of Ophthalmology Beijing Tongren Eye Center Beijing Tongren Hospital Capital Medical University Beijing Key Laboratory of Ophthalmology and Visual Sciences Beijing 100005 China

The aim of this study was to investigate the etiological characteristics of Chlamydia trachomatis conjunctivitis among resident students at primary schools in the Qinghai Tibetan area in order to understand the distribution of C. trachomatis and other pathogenic microorganisms, to detect the isolation rate of infectious pathogens, and to provide an evidence for further targeted efforts in the prevent of sporadic trachoma efforts. From two primary schools in Qinghai Province, ocular samples from 35 students who were clinically diagnosed as trachoma cases and 60 normal controls were obtained by swabbing their upper eyelids and lower conjunctival sacs. Samples were preserved at 4°C and airlifted to Beijing Tongren Hospital within 24 h. Real-time polymerase chain reaction(RT-PCR) was used to screen for C. trachomatis, and nested PCR was used to amplify a fragment of the omp A gene for serotype confirmation. Bacterial cultivation and sensitivity tests were conducted based on the 2015 version of the Clinical and Laboratory Standards Institute. Adenovirus, herpes simplex virus, cytomegalovirus, and Epstein-Barr virus were screened by RT-PCR. Among the 35 students with trachoma, 8 came from the Jianshetang Primary School and 27 came from the Central Primary School. Two novel C. trachomatis B serotypes(Gen Bank accession numbers KU737520 and KU737521) were detected based on a sequence analysis of the omp A gene. Single C. trachomatis infections accounted for 42.86%(9/21) of the cases, and infections with multiple bacteria, particularly Haemophilus influenzae, Staphylococcus aureus, Moraxella catarrhalis, and Streptococcus pneumoniae, accounted for the remaining 57.14%(12/21). Of the 14 C. trachomatis-negative samples, one was positive for adenoviral infection(serotype D) and 13 were positive for bacterial infections(H. influenzae, M. catarrhalis, S. pneumoniae, S. aureus, streptococci other than S. pneumoniae, Staphylococcus epidermidis, Corynebacterium, and Arthrobacterium)

关键词： trachoma opportunistic pathogens etiological characteristics

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

The Effect of Career Plateau on Chinese Employees＇ Affective Commitment： An Indigenous Career Plateau Scale and Two-Mediator Model

引用

Frontiers of Business Research in China 2014年第3期8卷 346-366页

作者： Baoguo Xie xinxin lu Wenxia Zhou Xun Xin School of Labor and Human Resources Renmin University of China Beijing 100872 China

The two-dimensional （hierarchical and job content） model have been predominating the extant career plateau literature. However, based on Schein＇s cone-shaped organizational mobility model, we contend that stagnation in organizational centrality （inclusive plateau） may be another dimension of career plateau. Furthermore, grounded in social exchange theory and need-satisfaction models, we aim to examine the effects of career plateau on affective commitment and underlying mechanisms. In Study 1, based on a sample of 219 employees from different professions, we developed a primary validation of our three- dimensional career plateau scale. In Study 2, we examined our hypothesized model with another dataset of 288 employees. The results suggest that job satisfaction fully mediates the relationship between the job content plateau, the inclusive plateau and affective commitment. The analysis demonstrates that the specific indirect effect of job content plateauing and inclusion on affective commitment through intrinsic job satisfaction was greater than through extrinsic job satisfaction. However, the hypothesis regarding the relationship between hierarchical plateau and affective commitment was not supported, when another two dimensions of career plateau were added to the model. Our findings provide some theoretical and practical implications.

关键词： career plateau three-factor structure job satisfaction affectivecommitment

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Qinia ***.(Bacillariophyceae:Cymbellales)from Yunnan Province,China

引用

Journal of Oceanology and Limnology 2023年第5期41卷 1965-1977页

作者： Yan LIU John Patrick KOCIOLEK Maxim KULIKOVSKIY Anton GluSHCHENKO Pan YU Quanxi WANG xinxin lu Yawen FAN College of Life Science and Technology Harbin Normal UniversityHarbin 150025China Museum of Natural History and Department of Ecology and Evolutionary Biology University of ColoradoBoulderCO 80309USA K.А.Timiryazev Institute of Plant Physiology RAS IPP RASMoscow 127276Russia College of Life Sciences Shanghai Normal UniversityShanghai 200234China

An interesting group of cymbelloid diatoms was collected from lakes in Yunnan Province,China,and observations on their valve morphology made using light and scanning electron *** cymbelloid species all have apical pore fields,slit-like areolae,and areolar occlusions,and they all lack of *** this paper we propose the new genus Qinia *** these taxa and describe them as new:*** ***.,*** ***.,and *** *** genus Qinia *** lanceolate valves asymmetrical about their apical axes,raphe located in the middle of valve,distal raphe ends bent to the dorsal margin that bisects the apical pore fields(APFs),no stigmata,areolae with slit-like external openings and projections occluding the areolar openings *** genus resembles the genus Cymbella in the presence of APFs,but differs from Cymbella by a lack of stigmata,and by having external distal raphe ends that bisect the apical pore *** Reimeria,the external distal raphe ends bisect the lobes of the APF,but Qinia species differ from Reimeria in that they have no stigmata and the distal raphe ends are deflected dorsally,not *** were made between Qinia and other cymbelloid genera whose members possess apical pore *** that distinguish each species of the new genus are also discussed.

关键词： freshwater new genus cymbelloid diatom freshwater morphology

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：