检索结果-南通市图书馆

Influence of Arbuscular Mycorrhizal Fungi on Growth, Mineral Nutrition and Chlorogenic Acid Content of Lonicera confusa Seedlings Under Field Conditions

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

Pedosphere 2013年第3期23卷 333-339页

作者： SHI An-Dong LI Qian HUANG Jian-Guo yuan ling College of Resources and Environment Southwest University

Lonicera confusa, a traditional Chinese medicine herb for treating cold, flu, acute fever, and so forth, is often grown artificially in acidic soils and suffers from phosphorus (P) deficiency. A five-year field experiment was carried out to study the colonization rate, growth, nutrition, and chlorogenic acid content of Lonicera confusa seedlings inoculated with arbuscular mycorrhizal (AM) fungi, Glomus etunicatum and Glomus intraradices. Before transplanting into a field, both AM-inoculated and uninoculated control plants were cultured in nursery beds. In the plants inoculated with the AM fungi, the colonization rate decreased linearly with time and a greater decrease was observed in the plants inoculated with G. intraradices than with G. etunicatum, while the AM colonization increased from 0% to 12.1% in the uninoculated control plants 5 years after transplanting. Plant height, crown diameter, number of new branches, and flower yield increased significantly by AM inoculation as compared to the uninoculated control. Phosphorus concentrations in leaves and flowers increased, and plant uptake of nutrients, e.g., nitrogen (N), P, and potassium (K), was also enhanced significantly by AM inoculation. The Lonicera confusa seedlings had a better response to inoculation of G. intraradices than G. etunicatum in both growth and chlorogenic acid content in flowers. In contrast, both plant P uptake and P concentrations in leaves and flowers were similar between two fungal inoculations. The positive responses of Lonicera confusa to AM inoculation in growth, nutrient uptake, flowering, and chlorogenic acid content in flowers suggested that AM inoculation in nursery beds could promote the plant growth and increase chlorogenic acid content in flowers of Lonicera confusa when grown on acidic and P-deficient soils.

关键词： Glomus colonization rate nursery beds nutrient uptake P deficiency

Self-assembled graphene oxide/polyethyleneimine films as high-performance quartz crystal microbalance humidity sensors

在线全文

学校读者我要写书评

暂无评论

Rare Metals 2021年第6期40卷 1597-1603页

作者： Zhen yuan Hui-ling Tai yuan-Jie Su Guang-Zhong Xie Xiao-Song Du Ya-Dong Jiang State Key Laboratory of Electronic Thin Films and Integrated Devices School of Optoelectronic Science and EngineeringUniversity of Electronic Science and Technology of ChinaChengdu 610054China

As humidity is one of the most widely demanded environmental parameters,the precision of its detection is *** advanced humidity sensor will improve the validity of the humidity monitoring *** this study,a facile chemical layer-by-layer self-assembly(CLS)method was developed for fabricating graphene oxide(GO)/polyethyleneimine(PEI)multilayer *** to the chemical bonding between the PEI and GO,and the intrinsic stickiness of the PEI,layered films with different numbers of layers were successfully prepared using the CLS method and confirmed through ultraviolet-visible(UV-Vis)spectroscopy and the mass loading of quartz crystal microbalance(QCM).Morphological measurements revealed that the roughness and thickness of the films increased exponentially with the number of *** GO/PEI films were deposited on QCM electrodes using the CLS method to produce the humidity *** humidity measurement results showed a high sensitivity(37.84 Hz/%RH)and rapid response/recovery(<5 s/8 s)of the optimal sensor,which was superior to that of recently developed QCM sensors.

关键词： Humidity sensors Quartz crystal microbalance Graphene oxide Polyethyleneimine Self-assembly

Very Low-Grade Metamorphism of Clastic Rocks from the Meso-Neoproterozoic and the Paleozoic along the Profile Yueyang-Linxiang in Northeastern Hunan Province and Its Geological Implications

在线全文

学校读者我要写书评

暂无评论

Acta Geologica Sinica(English Edition) 2016年第5期90卷 1743-1753页

作者： WANG Hejing yuan Lei WANG ling ZHOU Zhao AN Jiali School of Earth and Space Sciences Peking University Key Laboratory of Orogenic Belt and Crustal Evolution Ministry of Education

This study uses illite crystallinity,chlorite crystallinity,illite polytypes,the b0 cell-dimension of K-white mica,clay mineral assemblages and mineral geothermo-geobarometers to investigate the overprint of diagenesis and metamorphism on the Meso-Neoproterozoic and the Lower Paleozoic along the profile Yueyang-Linxiang in northeastern Hunan Province,*** crystallinity Kbler index（KI） of the 〈2μm fractions ranges from 0.225 to 0.485°Δ2θ while chlorite crystallinity Arkai index（AI） ranges from 0.244 to 1.500°Δ2θ.This indicates that the Meso-Neoproterozoic and the Lower Paleozoic along the profile Yueyang-Linxiang were overprinted with diagenesis and anchi- to *** metamorphic temperature is estimated with the IV site chlorite geothermometer roughly at 360℃.The b0 cell dimension values of illites（K-mica） range from 0.9002 to 0.9054 nm and,on average,at 0.9030 nm for the *** on cumulative frequency curves of illite（K-mica） b0 cell dimension,the peak metamorphic pressure of the MesoNeoproterozoic along the profile Yueyang-Linxiang is derived of an intermediate pressure *** illites occur in the 2M1 polytype and some of them in a mixture of 2M1＋1M types especially those in the *** result partly agrees with the conclusion of the lower greenschist and greenschist facies of the Lengjiaxi and Banxi ***,it is not agreed with the sedimentary cover from the Sinian to the Lower Paleozoic or from the Banxi Group to the Lower *** thickening due to ＂collision＂ between the Yangtze and Cathaysia blocks led to an increase in the thickness of the Meso-Neoproterozoic to ca.14 km and resulted in a temperature increase in those rocks due to *** very low grade to low grade metamorphism overprinting the Meso-Neoproterozoic implies that the so called ＂Chiangnania or Jiangnan orogen＂ was no relative with the ＂Grenvillian orogeney;instead,it might be a continuous amalgamation product between the Yang

关键词： diagenesis very low-grade metamorphism illite crystallinity Meso-Neoproterozoic lowerpalaeozoic

Adhesion of an Ultrasmall Nanoparticle on a Bilayer Membrane is Still Size and Shape Dependent

在线全文

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2015年第6期31卷 660-663页

作者： Hao Yang ling Wang Bing yuan Kai Yang Yuqiang Ma Center for Soft Condensed Matter Physics and Interdisciplinary Research College of PhysicsOptoelectronics and EnergySoochow University

It has been found recently that an ultrasmall nanoparticle whose size is smaller than the thickness of a cell membrane has unique roles in biomedical applications including the development of next generation of drugs or advanced nanoscale cargo ***,the effect of physical properties of an ultrasmall nanoparticle on its adhesion to a bilayer membrane,which is a key step for Nano-Bio interaction as well as the biomedical applications,is still largely *** using molecular dynamics,we find that both size and shape of an ultrasmall nanoparticle strongly affect its adhesion states on a bilayer membrane(e.g.,adhesion,separation or entwined by polymer chains).Interestingly,our simulations show that with decreasing particle size,the effect of particle shape becomes even more evident for the adhesion *** is indicated that the competition between nanoparticle-polymer binding and polymer chain deformation,both of which are influenced by particle size and shape,determines the final adhesion states of an ultrasmall *** results are helpful for the full understanding of interaction mechanism between nanoparticles and cell membranes and the practical applications of such ultrasmall nanoparticles.

关键词： Adhesion Biomaterials Molecular dynamics simulatio

Effect of Ca-Fe oxides additives on NOx reduction in iron ore sintering

在线全文

学校读者我要写书评

暂无评论

Journal of Iron and Steel Research International 2017年第12期24卷 1184-1189页

作者： Zhi-yuan Yu Xiao-hui Fan Min Gan Xu-ling Chen Hunan Research Academy of Environmental Sciences Changsha 410004HunanChina School of Mineral Processing and Bioengineering Central South UniversityChangsha 410083HunanChina

As the emission control regulations get stricter,the NO;reduction in the sintering process becomes an important environmental concern owing to its role in the formation of photochemical smog and acid *** NOxemissions from the sintering machine account for 48% of total amount from the iron and steel ***,it is essential to reduce NO;emissions from the sintering machine,for the achievement of clean production of ***-Fe oxides,serving as the main binding phase in the sinter,are therefore used as additives into the sintering mixture to reduce *** results show that the NO;reduction ratio achieves 27.76% with 8% Ca-Fe oxides additives since the Ca-Fe oxides can advance the ignition and inhibit the nitrogen oxidation compared with the conventional ***,the existence of Ca-Fe oxides was beneficial to the sinter quality since they were typical low melting point *** optimal mass fraction of Ca-Fe oxides additives should be less than 8%since the permeability of sintering bed was significantly decreased with a further increase of the Ca-Fe oxides fines,inhibiting the mineralization reaction of sintering ***,the appropriate particle size can be obtained when mixing an equal amount of Ca-Fe oxides additives of-0.5 mm and 0.5-3.0 mm in size.

关键词： Iron ore sintering NOx reduction Ca-Fe oxide Coke combustion Sinter index

Confidence domain in the stochastic competition chemostat model with feedback control

在线全文

学校读者我要写书评

暂无评论

Applied Mathematics(A Journal of Chinese Universities) 2018年第4期33卷 379-389页

作者： XU Chao-qun yuan San-ling ZHANG Tong-hua Faculty of Science Jiangsu University College of Science University of Shanghai for Science and Technology Department of Mathematics Swinburne University of Technology

This paper studies a stochastically forced chemostat model with feedback control in which two organisms compete for a single growth-limiting substrate. In the deterministic counterpart, previous researches show that the coexistence of two competing organisms may be achieved as a stable positive equilibrium or a stable positive periodic solution by different feedback schedules. In the stochastic case, based on the stochastic sensitivity function technique,we construct the confidence domains for different feedback schedules which allow us to find the configurational arrangements of the stochastic attractors and analyze the dispersion of the random states of the stochastic model.

关键词： stochastic chemostat model feedback control white noise confidence domain

Crowdsourcing intelligent design

在线全文

学校读者我要写书评

暂无评论

Frontiers of Information Technology & Electronic Engineering 2018年第1期19卷 126-138页

作者： Wei XIANG ling-yun SUN Wei-tao YOU Chang-yuan YANG State Key Lab of CAD & CG Zhejiang University Hangzhou 310058 China Modern Industrial Design Institute Zhejiang University Hangzhou 310027 China International User Experience Business Unit Alibaba Group Hangzhou 310000 China

Design intelligence,namely,artificial intelligence to solve creative problems and produce creative ideas,has improved rapidly with the new generation artificial ***,existing methods are more skillful in learning from data and have limitations in creating original ideas different from the training *** offers a promising method to produce creative designs by combining human inspiration and machines' computational *** propose a crowdsourcing intelligent design method called ‘flexible crowdsourcing design'.Design ideas produced through crowdsourcing design can be unreliable and inconsistent because they rely solely on selection among participants' submissions of *** contrast,the flexible crowdsourcing design method employs a cultivation procedure that integrates the ideas from crowd participants and cultivates these ideas to improve design quality at the same *** introduce a series of studies to show how flexible crowdsourcing design can produce original design ideas ***,we will describe the typical procedure of flexible crowdsourcing design,the refined crowdsourcing tasks,the factors that affect the idea development process,the method for calculating idea development potential,and two applications of the flexible crowdsourcing design ***,it summarizes the design capabilities enabled by crowdsourcing intelligent *** method enhances the performance of crowdsourcing design and supports the development of design intelligence.

关键词： Crowdsourcing Flexible crowdsourcing design Design intelligence

Mechanism of Fuzheng Kang'ai Formula Regulating Tumor Microenvironment in Non-Small Cell Lung Cancer

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Integrative Medicine 2022年第5期28卷 425-433页

作者： TIAN Yun-ling FU Song-bo LI Bo yuan ling-yan BING Zhi-tong Department of Endocrinology and Metabolism the First Hospital of Lanzhou UniversityLanzhou(730000)China Evidence Based Medicine Center School of Basic Medical Science of Lanzhou UniversityLanzhou(730000)China Department of Computational Physics Institute of Modern PhysicsChinese Academy of SciencesLanzhou(730000)China School of Nuclear Science and Technology University of Chinese Academy of SciencesBeijing(100049)China

Objective:To study the mechanism of Chinese herbal medicine Fuzheng Kang’ai Formula(FZKA)on tumor microenvironment(TME).Methods:CIBERSORTx was used for analysis of *** Chinese Medicine Systems Pharmacology and Analysis Platform was applied to identify compounds-targets network and the Cancer Genome Atlas(TCGA)was employed to identify the differential expression genes(DEGs)between tumor and paracancerous tissues in lung adenocarcinoma(LUAD)from ***,DEGs with prognosis in LUAD was calculated by univariable and multivariate Cox *** core targets of FZKA were analyzed in lung adenocarcinoma ***-protein interaction database was employed to predict down-stream of *** reverse transcription polymerase chain reaction was employed for biological experiment in A549,H1299 and PC9 cell ***:The active and resting mast cells were significantly associated with prognosis of LUAD(P<0.05).Of the targets,CCNA2 as an important target of FZKA(hazard ratio=1.41,95%confidential interval:1.01-2.01,P<0.05)was a prognostic target and significantly associated with mast ***2 was positively correlated with mast cell activation and negatively correlated with mast cell resting ***1 L2,ACTL6 A and ITGAV were down-stream of CCNA2,which were validated by q RT-PCR in A549 ***:FZKA could directly bind to CCNA2 and inhibit tumor growth by regulating CCNA2 downstream genes and TME of NSCLC closely related to CCNA2.

关键词： network pharmacology prognosis tumor microenvironment Fuzheng Kang’ai Formula Chinese medicine lung adenocarcinoma

One-Pot Synthesis of Spiro[fluorene-9,9'-xanthene]Derivatives

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Chemistry 2021年第3期39卷 701-709页

作者： Hao-Xuan yuan Ying Wei ling-Hai Xie Wei Huang Centre for Molecular Systems and Organic Devices(CMSOD)&Key Laboratory for Organic Electronics and Information Displays&Institute of Advanced Materials(IAM)&Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM) Nanjing University of Posts&Telecommunications9 Wenyuan RoadNanjingJiangsu 210023China Shaanxi Institute of Flexible Electronics(SIFE) Northwestern Polytechnical University127 West Youyi RoadXi'anShaanxi 710072China

As a novel class of spirofluorenes,spirobifluorene(SBF)and spiro[fluo-rene-9,9'-xanthene]derivatives(SFXs)have orthogonal geometric config-uration,spiro-conjugation effect,and rigid steric hindrance,which can be widely used in the fields of synthetic chemistry,materials chemistry and supramolecular *** to their facile one-pot synthetic route,and to the variety of molecular designs,SFXs are expected to become new spiro functional materials that replace *** this review,we present the history,development and expansion of SFXs synthesis in one-pot methods,and the advantages and limitations of one-pot synthesis are also dis-cussed.

关键词： Spirofluorenes Spiro[fluorene 9,9'-xanthene]s(SFXs) One pot synthesis Synthetic methods Heterocycles Cyclization