检索结果-南通市图书馆

Coordination of thin-film nanofibrous composite dialysis membrane and reduced graphene oxide aerogel adsorbents for elimination of indoxyl sulfate

引用

Chinese Journal of Chemical Engineering 2022年第9期35卷 111-121页

作者： yuanyuan Jin Siping Ding Peiyun Li Xuefen Wang State Key Lab for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai 201620China

The protein-bound uremic toxins,represented by indoxyl sulfate(IS),have been associated with the progression of chronic kidney disease and the development of cardiovascular disease in the presence of impaired renal ***,we proposed a novel strategy of thin-film nanofibrous composite(TNFC)dialysis membrane combined with reduced graphene oxide(rGO)aerogel adsorbents for clinical removal of IS as well as high retention of *** TFNC membrane was prepared by electrospinning in conjunction with coating-reaction method and proved to have good selectivity and *** further improve the removal rate of toxins,we used a medium hydrothermal method following by freeze-drying treatment to obtain the r GO aerogel *** exhibited excellent adsorption for IS with a maximum adsorption capacity of 69.40 mg·g^(-1)throughπ-πinteraction and hydrogen bonding interaction based on Langmuir isotherm ***-dependent absorption experiments showed that it reached adsorption equilibrium within 4 h,which was matched with the hemodialysis *** coordination was significantly exhibited by introducing r GO aerogel blocks into the dialysate for absorbing the diffused free IS during *** the advantages of the TFNC dialysis membrane and the rGO aerogel,the volume of dialysate for hemodialysis was only one-tenth of that without adsorbent blocks but with very comparable dialysis performance(the clearance of IS at 51.8%and the retention of HSA over 98%),which could lighten conventional hemodialysis effectively and be benefit to realize the miniaturization of the hemodialysis ***,the coordination of the TFNC dialysis membrane and rGO aerogel adsorbents would open a new path for the development of portable artificial kidney.

关键词： Indoxyl sulfate Thin-film nanofibrous composite membrane rGO aerogel adsorbents Hemodialysis Coordination Portable artificial kidney

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

Receding horizon estimation to networked control systems with multirate scheme

引用

Science in China(Series F) 2009年第7期52卷 1103-1112页

作者： ZOU yuanyuan LI ShaoYuan Department of Automation Shanghai Jiao Tong University Shanghai 200240 China

This paper investigates the problem of receding horizon state estimation for networked control systems （NCSs） with random network-induced delays less than one sample period, which are formulated as multirate control systems. Based on a batch of recent past slow rate measurements in a finite horizon window, the initial state estimation in this window is solved by minimizing a receding-horizon objective function, and then the fast rate state estimations are calculated by the prediction of dynamic equation to compensate for the network-induced time delays. Furthermore, convergence results and unbiasedness properties are analyzed. An upper bound of estimation error is presented under the assumption of bounded disturbances acting on the system and measurement equations. A simulation example shows the effectiveness of the proposed method.

关键词： networked control systems multirate network-induced time delays receding-horizon state estimation

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

Guest Editorial:Special Issue on Fruit Quality and Healthy Nutrition

引用

Food Quality and Safety 2022年第1期6卷 1-2页

作者： yuanyuan Li Dagang Hu College of Horticultural Science and Engineering Shandong Agricultural UniversityTai'an China

Fleshy fruit is the most important type of horticultural product,playing an irreplaceable role in the improvement of dietary structure,the balance of nutrition,and the intake of physiological active substances such as vitamins in daily *** quality is the core of the current and future horticultural industry's healthy development and market competitiveness.

关键词： replace vitamin Quality

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

Mechanism of Photothermal Energy on the Growth and Yield of Rice under Water Level Regulation

引用

Phyton-International Journal of Experimental Botany 2021年第4期90卷 1131-1146页

作者： Menghua Xiao yuanyuan Li Zhejiang Institute of Hydraulics and Estuary Hangzhou310020China North China University of Water Resource and Electric Power Zhengzhou450045China

The flooding caused by heavy rainfall in rice irrigation area and the drought caused by the drop of groundwater level are the research focus in the field of irrigation and *** on the comparative experiment and farmland water level control technology,this paper studied the average soil temperature under different soil layers(TM),the daily temperature change(TDC),the photosynthetic accumulation of single leaf and canopy in rice,and response of photothermal energy to rice root characteristics and growth factors in the paddy field under drought *** results showed that the peak soil temperature under drought treatment was basically synchronous with the conventional irrigation,and the it was delayed by 2–6 h under flooding treatment compared to the drought *** different water gradients,the temperature decreased according to T_(L)>T_(CK)>T_(H)(L,H and CK represented water flooding,drought and control treatments),and the TDC was *** addition to milky stage,the daily photosynthetic(Pn)accumulation of single leaf and canopy in the flooding and drought treated paddy fields were lower than conventional irrigation,and had a negative impact on leaf area index(LAI)and yield(YR),but did not form fatal *** root characteristic factors,RL(root length),RW(root weight),R-CR(root-canopy ratio)were promoted with drought,and YR under light drought was slightly higher than that under heavy *** was a strong positive correlation between TM and R-CR in all rice growth stages,while TDC-5 was negatively correlated with effective panicle number,TDC and R-CR in 20 cm soil layer were positively *** correlation between daily Pn accumulation and YR was low,and the correlation between Pn and YR factors was negative or weak positive or *** total Pn was positively correlated with yield factors,and the correlation coefficient was higher than that of daily Pn.

关键词： Water level regulation soil temperature daily accumulation of photosynthetic quantity growth factor response relationship

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

Flow properties of three fuel powders

引用

Particuology 2012年第4期10卷 438-443页

作者： Pan Chen Zhulin Yuan Xianglin Shen yuanyuan Zhang School of Energy and Environment Southeast UniversityNanjing 210096China

Flow and physical properties were measured for three fuel powders： sawdust, brown coal and hard coal. Besides physical properties, e.g., particle size, bulk density and moisture content, flowability was investigated using the standard shear testing technique of the Jenike shear cell. Flow functions of the three powders used for characterization of bulk flow and design of hoppers were determined, and then compared and discussed. The flow functions of the three powders are located in different regions： while brown coal and hard coal were classified respectively as easy flowing and cohesive material, sawdust was found in regions varying from cohesive to easy fowing at low consolidation stress. The measured effective angle of internal friction and angle of wall friction were 55° and 31.4° for sawdust; 36.2° and 26° for brown coal; and 43.3° and 27.8° for hard coal. Using the measured powder flow properties, Jenike＇s procedure was then followed to estimate and compare the critical hopper dimensions for mass flow of the three powders.

关键词： Powder flow functionEffective angle of internal frictionAngle of wall frictionJenike shear cellParticle distributionMoisture content

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

MicroRNA (let-7b-5p)-targeted DARS2 regulates lung adenocarcinoma growth by PI3K/AKT signaling pathway

引用

Oncology Research 2024年第3期32卷 517-528页

作者： yuanyuan XU XIAOKE CHEN Department of Oncology Surgery Shanghai Lung Cancer CenterShanghai Chest HospitalShanghai Jiao Tong UniversityShanghaiChina

Background:The aberrant intraellular expression of a mitochondrial aspartyl tRNA synthetase 2(DARS2)has been reported in human *** its critical role and detailed mechanism in lung adenocarcinoma(LUAD)remain ***:Initially,The Cancer Genome Atlas(TCGA)based Gene Expression Profiling Interactive Analysis(GEPIA)database (http:/***/)was used to analyze the prognostic relevance of DARS2 expression in ***,cell counting kit(CCK)8,immunostaining,and transwell invasion assays in LUAD cell lines in vitro,as well as DARS2 silence on LUAD by tumorigenicity experiments in wivo in nude mice,were ***,we analyzed the expression levels of p-PI3K(phosphorylated Phosphotylinosital3 kinase),PI3K,AKT(Protein Kinase B),p-AKT(phosphorylated Protein Kinase B),PCNA(proliferating cell nudear antigen),cleaved-caspase 3,E cadherin,and N-cadherin proteins using the Westem blot ***:LUAD tissues showed higher DARS2 expression compared to normal *** of DARS2 could be related to Tumor-Node-Metastasis(TNM)stage,high lymph node metastasis,and inferior ***2 silence decreased the proliferation,migration,and invasion abilities of LUAD *** addition,the DARS2 downregulation decreased the PCNA and N-cadherin expression and increased cleaved:caspase 3 and E cadherin expressions in LUAD cells,coupled with the inactivation of the PI3K/AKT signaling ***,DARS2 silence impaired the tumonigenicity of LUAD in ***,let:7b-5p could recognize DARS2 through a complementary ***,the increased let 7b 5p expression attenuated the promo oncogenic action of DARS2 during LUAD progression,which were inversely correlated to each other in the LUAD tssues Conclusion:In summary,let 7b-5p,downregulated DARS2 expression,regulating the progression of LUAD cells by the PI3K/AKT signaling pathway.

关键词： Lung adenocarcinoma Prognosis PI3K/AKT pathway Mitochondrial asparty-tRNA synthetase MicroRNAs

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

Simultaneous removal of Cr(Ⅵ), Cd, and Pb from aqueous solution by iron sulfide nanoparticles: Influencing factors and interactions of metals

引用

Chinese Journal of Chemical Engineering 2021年第12期34卷 245-255页

作者： Qingrong Zou Wanyu Wang Tong Zhang yuanyuan Liu State Key Laboratory of Coal Mine Disaster Dynamics and Control Chongqing UniversityChongqing 400044China Key Laboratory of the Three Gorges Reservoir Region’s Eco-Environment of Ministry of Education Chongqing UniversityChongqing 400044China Central-Southern Safety&Environment Technology Institute Co. LtdWuhan 430061China

Cadmium(Cd),lead(Pb),and hexavalent chromium(Cr(Ⅵ)) are often found in soils and water affected by metal smelting,chemical manufacturing,and *** this study,synthetic iron sulfide nanoparticles(FeS NPs) were stabilized with carboxymethyl cellulose(CMC) and utilized to remove Cr(Ⅵ),Cd,and Pb from an aqueous *** experiments,a Visual MINTEQ model,scanning electron microscopy(SEM),X-ray diffraction(XRD),and X-ray photoelectron spectrometer(XPS) analysis were used to determine the removal efficiencies,influencing factors,and *** FeS NP suspension simultaneously removed Cr(Ⅵ),Cd,and Pb from an aqueous *** concentrations of Cr(Ⅵ),Cd,and Pb decreased from 50,10,and 50 mg·L^(-1) to 2.5,0.1,and 0.1 mg·L^(-1),*** removal capacities were up to 418,96,and 585 mg per gram of stabilized FeS NPs,*** acidic conditions significantly favored the removal of aqueous Cr(Ⅵ) while the alkaline conditions favored the removal of Cd and *** slightly inhibited the removal of Cr(Ⅵ),but it had no significant influence on the removal of Cd and Pb.A potential mechanism was proposed for the simultaneous removal of Cr(Ⅵ),Cd,and Pb using FeS *** interactions of the three heavy metals involved a cationic bridging effect on Cr(Ⅵ) by Cd,an enhanced adsorption effect on Cd by [Cr,Fe](OH)_3,precipitation of PbCrO_4,and transformation of PbCrO_4 to ***,FeS NPs have a high potential for use in the simultaneous removal of Cr(Ⅵ),Cd,and Pb from contaminated aqueous solutions.

关键词： Iron sulfide Nanoparticles Multi-heavy metal contamination Simultaneous removal Environment Remediation

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

Insights on catalytic mechanism of CeO2 as multiple nanozymes

引用

Nano Research 2022年第12期15卷 10328-10342页

作者： yuanyuan Ma Zhimin Tian Wenfang Zhai Yongquan Qu Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology School of Chemistry and Chemical EngineeringNorthwestern Polytechnical UniversityXi’an710072China

CeO2 with the reversible Ce3+/Ce4+redox pair exhibits multiple enzyme-like catalytic performance,which has been recognized as a promising nanozyme with potentials for disease diagnosis and *** surface physicochemical properties of various CeO2 catalysts with controllable sizes,morphologies,and surface states enable a rich surface chemistry for their interactions with various molecules and species,thus delivering a wide variety of catalytic behaviors under different *** the significant progress made in developing CeO2-based nanozymes and their explorations for practical applications,their catalytic activity and specificity are still uncompetitive to their counterparts of natural enzymes under physiological *** the attempt to provide the insights on the rational design of highly performed CeO2 nanozymes,this review focuses on the recent explorations on the catalytic mechanisms of CeO2 with multiple enzyme-like *** the detailed discussion and proposed perspectives,we hope this review can raise more interest and stimulate more efforts on this multi-disciplinary field.

关键词： heterogeneous catalysis ceria nanozyme oxygen vacancy

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

A Comprehensive Review:Recent Developments of Biomimetic Sensors

引用

Journal of Bionic Engineering 2022年第4期19卷 853-876页

作者： Xu Ye yuanyuan Li Yan Zhang Ping Wang National Engineering Laboratory for Modern Silk College of Textile and Clothing EngineeringSoochow UniversitySuzhou 215123China

With the fast development of Internet of Things,flexible and extensible sensors have undergone a great *** of the limited functions of traditional flexible sensors,more and more researchers begin to develop biomimetic sensors inspired by nature,which introduce unique structures of various natural creatures into sensors through a simple and low-cost process,endowing them with excellent comprehensive *** imitating structures,compositions,biological mechanisms of natural organisms,these flaws can be overcome,making sensors have a variety of functions,such as hydrophobicity,discoloration and so *** this paper,biomimetic objects used in sensors are summarized from three perspectives,plants(lotus leaves),animals(butterfly wings)and components(enzymes).And then,the common preparation methods of biomimetic materials are described in detail,such as template method,hydrothermal method,***,the current applications of biomimetic sensors in wearable fields like electronic skin,human health detection and human motion detection,are also ***,the difficulties and limitations of sensors,efforts to improve properties of materials,as well as likely future developments were ***,it is highly promising to provide readers with a quick glimpse into the research landscape of this field.

关键词： Biomimetic sensors Template Lithography Wearable devices

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

SSIG: Single-Sample Information Gain Model for Integrating Multi-Omics Data to Identify Cancer Subtypes

引用

Chinese Journal of Electronics 2021年第2期30卷 303-312页

作者： ZHANG yuanyuan WANG Ziqi WANG Shudong KOU Chuanhua School of Information and Control Engineering Qingdao University of Technology College of Computer Science and Technology China University of Petroleum (East China)

Different living environments of cancer samples lead to different molecular mechanisms of cancer development, which in turn leads to different cancer subtypes. How to identify cancer subtypes is a key issue for the realization of precision medicine. With the development of high-throughput technologies, multi-omics data which can better understand different causes of cancer have emerged. However, the current methods of analyzing cancer subtypes using multi-omics data is mostly derived from population cancer sample data and ignores the differences between different cancer ***, the joint analysis of multi-omics based on a single sample may reveal more information about the differences between individual cancers. A strategy for identifying cancer subtypes is proposed based on Single-sample information gain(SSIG) which construct sample feature matrix by considering the heterogeneity of sample. Applying this strategy to current popular subtype identification methods, cancer subtypes can be identified more accurately and the mechanism of cancer can be found from the perspective of a single sample. By comparing different methods in different clustering measure, and using survival analysis, it is shown that SSIG is more suitable for cancer subtype identification than the original multi-omics data, and it is easier to mine the cancer subtype classification mechanism hidden behind the data.

关键词： identify cancer subtypes SSIG medical computing cancer subtype classification mechanism Single-sample information gain model different cancer subtypes original multiomics data genetics cancer subtype identification current popular subtype identification methods population cancer sample data different cancer samples data analysis cancer development genomics cancer sample feature matrix different molecular mechanisms different living environments bioinformatics individual cancers different clustering measure

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

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：