检索结果-南通市图书馆

Deciphering mycorrhizal fungi in cultivated Phalaenopsis microbiome with next-generation sequencing of multiple barcodes

在线全文

学校读者我要写书评

暂无评论

Fungal Diversity 2014年第3期66卷 77-88页

作者： chao-li huang Feng-Yin Jian Hao-Jen huang Wen-Chi Chang Wen-Luan Wu Chi-Chuan Hwang Ruey-Hua Lee Tzen-Yuh Chiang Department of life Sciences National Cheng Kung UniversityTainanTaiwan 701 Institute of Tropical Plant Sciences National Cheng Kung UniversityTainanTaiwan 701 Department of Engineering Science and Supercomputing Research Center National Cheng Kung UniversityTainanTaiwan 701

Identifying the species composition of a microbial ecosystem is often hampered by difficulties in culturing the organisms and in the low sequencing depth of traditional DNA *** analysis,a huge-scale nucleotide-sequence-based tool,can overcome such *** this study,Sanger sequencing of 500 nrITS clones uncovered 29 taxa of 19 fungal genera,whereas metagenomics with next-generation sequencing identified 512 operational taxonomic units(OTUs)for ITS1/2 and 364 for ITS3/***,high throughput sequencing of PCR amplicons of ITS1/2,ITS3/4,nrLSU-LR,nrLSU-U,mtLSU,and mtATP6,all with at least 1,300×coverage and about 21 million reads in total,yielded a very diverse fungal *** fact that 74%of the OTUs were exclusively uncovered with single barcodes indicated that each marker provided its own insights into the fungal *** deal with the high heterogeneity in the data and to integrate the information on species composition across barcodes,a rank-scoring strategy was ***,205 genera among 64 orders of fungi were identified in healthy Phalaenopsis *** the barcodes utilized,ITS1/2,ITS3/4,and nrLSU-U were the most competent in uncovering the fungal *** barcodes,though detecting different compositions likely due to primer preference,provided complementary and comprehensive power in deciphering the microbial diversity,especially in revealing rare species.

关键词： DNA barcode Metagenomics Mycorrhizal fungi Next-generation sequencing Phalaenopsis orchid Rank scoring

Vertical gradients of neutral winds observed by ICON and estimated by the Horizontal Wind Model during the geomagnetic storm on August 26−28,2021

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

Earth and Planetary Physics 2025年第1期9卷 69-80页

作者： JiaWei Wu chao Xiong YuYang huang Yunliang Zhou Department of Space Physics School of Electronic InformationHubei Luojia LaboratoryWuhan UniversityWuhan 430072China

The Michelson Interferometer for Global High-resolution Thermospheric Imaging(MIGHTI)onboard the Ionospheric Connection Explorer(ICON)satellite offers the opportunity to investigate the altitude profile of thermospheric *** this study,we used the red-line measurements of MIGHTI to compare with the results estimated by Horizontal Wind Model 14(HWM14).The data selected included both the geomagnetic quiet period(December 2019 to August 2022)and the geomagnetic storm on August 26-28,*** the geomagnetic quiet period,the estimations of neutral winds from HWM14 showed relatively good agreement with the observations from *** to the ICON observations,near the equator,zonal winds reverse from westward to eastward at around 06:00 local time(LT)at higher altitudes,and the stronger westward winds appear at later LTs at lower *** around 16:00 LT,eastward winds at 300 km reverse to westward,and vertical gradients of zonal winds similar to those at sunrise hours can be *** the middle latitudes,zonal winds reverse about 2-4 h *** winds vary more significantly than zonal winds with seasonal and latitudinal *** to the ICON observations,in the northern low latitudes,vertical reversals of meridional winds are found at 08:00-13:00 LT from 300 to 160 km and at around 18:00 LT from 300 to 200 km during the June *** reversals of meridional winds are found at 04:00-07:00 LT from 300 to 160 km and at 22:00-02:00 LT from 270 to 200 km during the December *** the southern low latitudes,meridional wind reversals occur at 08:00-11:00 LT from 200 to 160 km and at 21:00-02:00 LT from 300 to 200 km during the June *** the December solstice,reversals of the meridional wind appear at 20:00-01:00 LT below 200 km and at 06:00-11:00 LT from 300 to 160 *** the northern middle latitudes,the northward winds are dominant at 08:00-14:00 LT at 230 km during the June *** winds persist until

关键词： horizontal neutral winds vertical gradients Ionospheric Connection Explorer satellite Horizontal Wind Model 14 geomagnetic storm

Bioinspired smart dual-layer hydrogels system with synchronous solar and thermal radiation modulation for energy-saving all-season temperature regulation

在线全文

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2025年第2期101卷 175-190页

作者： Meng-Chen huang chao-Hua Xue Zhongxue Bai Jun Cheng Yong-Gang Wu chao-Qun Ma li Wan Long Xie Hui-Di Wang Bing-Ying liu Xiao-Jing Guo College of Bioresources Chemical and Materials Engineering Shaanxi University of Science & Technology School of Manufacture Science and Engineering Key Laboratory of Testing Technology for Manufacturing Process Ministry of Education Southwest University of Science and Technology School of life Science and Engineering Southwest University of Science and Technology Northwest Institute for Nonferrous Metal Research Shaanxi Key Laboratory of Biomedical Metal Materials

All-season thermal management with zero energy consumption and emissions is more crucial to global decarbonization over traditional energy-intensive cooling/heating ***,the static single thermal management for cooling or heating fails to self-regulate the temperature in dynamic seasonal temperature ***,inspired by the dual-temperature regulation function of the fur color changes on the backs and abdomens of penguins,a smart thermal management composite hydrogel(PNA@H-PM Gel) system was subtly created though an "on-demand" dual-layer structure design *** PNA@H-PM Gel system features synchronous solar and thermal radiation modulation as well as tunable phase transition temperatures to meet the variable seasonal thermal requirements and energy-saving demands via self-adaptive radiative cooling and solar heating ***,this system demonstrates superb modulations of both the solar reflectance(ΔR=0.74) and thermal emissivity(ΔE=0.52) in response to ambient temperature changes,highlighting efficient temperature regulation with average radiative cooling and solar heating effects of 9.6℃ in summer and 6.1℃ in winter,***,compared to standard building baselines,the PNA@H-PM Gel presents a more substantial energy-saving cooling/heating potentials for energy-efficient buildings across various regions and *** novel solution,inspired by penguins in the real world,will offer a fresh approach for producing intelligent,energy-saving thermal management materials,and serve for temperature regulation under dynamic climate conditions and even throughout all seasons.

关键词： Energy-saving Radiative cooling Self-adaptive thermal management Spectral modulation Thermochromic hydrogel

Improving atmospheric pressure vertical correction model using Gaussian function

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Geodesy and Geodynamics 2025年第1期16卷 67-74页

作者： Baoshuang Zhang Junyu li lilong liu Yibin Yao liangke huang chao Ren Hongchang He Tengxu Zhang Yuxin Wang College of Geomatics and Geoinformation Guilin University of Technology Guangxi Key Laboratory of Spatial Information and Geomatics School of Geodesy and Geomatics Wuhan University School of Resources and Environmental Science and Engineering Hubei University of Science and Technology

The Zenith Hydrostatic Delay(ZHD) is essential for high-precision Global Navigation Satellite System(GNSS) and Very Long Baseline Interferometry(VLBI) data processing. Accurate estimation of ZHD relies on in situ atmospheric pressure, which is primarily variable in the vertical direction. Current atmospheric pressure is either site-specific or has limited spatial coverage, necessitating vertical corrections for broader applicability. This study introduces a model that uses a Gaussian function for the vertical correction of atmospheric pressure when in situ meteorological observations are unavailable. Validation with the fifth-generation European Centre for Medium-Range Weather Forecasts reanalysis(ERA5) reveals an average Bias and RMS for the new model of 0.31 h Pa and 2.96 h Pa,respectively. This corresponds to improvements of 37.5% and 80.3% in terms of RMS compared to two commonly used models(T0and Tvmodels) that require in situ meteorological observations,respectively. Additional validation with radiosonde data shows an average Bias and RMS of 1.85 h Pa and 4.87 h Pa, corresponding to the improvement of 42.8% and 71.1% in RMS compared with T0and Tv models, respectively. These accuracies are sufficient for calculating ZHD to an accuracy of 1 mm by performing atmospheric pressure vertical correction. The new model can correct atmospheric pressure from meteorological stations or numerical weather forecasts to different heights of the troposphere.

关键词： Atmospheric pressure Vertical correction Zenith hydrostatic delay (ZHD) Gauss function ERA5

Enhanced Cd^(2+)removal from aqueous solution using olivine and magnesite combination:New insights into the mechanochemical synergistic effect

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2025年第1期147卷 714-725页

作者： Xiaofang Chen chao Wang Min Chen Huimin Hu Junwei huang Ting Jiang Qiwu Zhang School of Resources&Environmental Engineering Wuhan University of TechnologyWuhan 430070China State Environmental Protection Key Laboratory of Water Environmental Simulation and Pollution Control South China Institute of Environmental SciencesMinistry of Ecology and EnvironmentGuangzhou 510655China

In this study,an efficient stabilizer material for cadmium(Cd^(2+))treatment was successfully prepared by simply co-milling olivine with *** analyticalmethods including XRD,TEM,SEM and FTIR,combined with theoretical calculations(DFT),were used to investigate mechanochemical interfacial reaction between twominerals,and the reaction mechanism of Cd removal,with ion exchange between Cd^(2+)and Mg^(2+)as the main pathway.A fixation capacity of Cd^(2+)as high as 270.61 mg/g,much higher than that of the pristine minerals and even the individual/physical mixture of milled olivine and magnesite,has been obtained at optimized conditions,with a neutral pH value of the solution after treatment to allow its direct *** as-proposed Mg-based stabilizer with various advantages such as cost benefits,green feature etc.,will boosts the utilization efficiency of naturalminerals over the elaborately prepared adsorbents.

关键词： Olivine Magnesite Interface reaction Mechanochemical activation Cadmium removal

Effect of lanthanum on microstructure of a nickel-based single crystal superalloy

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

China Foundry 2025年第1期22卷 55-64页

作者： Hong Gao Kai Guan Ren-jie Cui Jian-chao Qin Zi-han Zhao Zhao-hui huang Science and Technology on Advanced High Temperature Structural Materials Laboratory Beijing Institute of Aeronautical MaterialsBeijing 100095China

To enhance the high-temperature oxidation resistance and mechanical properties of a secondgeneration nickel-based superalloy,various concentrations of lanthanum(La)ranging from 5.0×10^(-5)wt.%to 3.4×10^(-4)wt.%are added to the *** microstructure of the nickel-based single crystal superalloy with trace of La was examined by means of SEM,EDS and *** show the addition of La decreases the segregation of elements and increases the amount ofγ/γ′eutectics of the as-cast alloy,and in the interdendritic region,the growth of eutectics is accompanied by the growth of strip clusters composed of Ni_(5)La and Ni_(3)*** the La content in the alloy increases,the proportion of Ni_(5)La in the cluster *** heat treatment,incipient melting occurs in the cluster regions,leading to an increase in microporosity compared to the original as-cast ***,the heat treatment alters the shape of the clusters from a strip morphology to an elliptical one,and it changes their composition from Ni_(5)La and Ni_(3)Ta to a combination of Ni_(5)La,Ni_(3)Ta,and MC carbides.

关键词： single crystal superalloy lanthanum microstructure heat-treatment precipitate phase

Dissolved organic matter characteristics linked to bacterial community succession and nitrogen removal performance in woodchip bioreactors

在线全文

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2025年第2期148卷 625-636页

作者： Achen Wang Xiang li Xuesong Luo Guangwen He Daqing huang Qiaoyun huang Xue-Xian Zhang Wenli Chen National Key Laboratory of Agricultural Microbiology Huazhong Agricultural UniversityWuhan 430070China Hubei Key Laboratory of Soil Environment and Pollution Remediation College of Resources and EnvironmentHuazhong Agricultural UniversityWuhan 430070China School of Natural Sciences Massey University at AlbanyAuckland 0745New Zealand

Woodchip bioreactors are an eco-friendly technology for removing nitrogen(N)***,there needs to be more clarity regarding the dissolved organicmatter(DOM)characteristics and bacterial community succession mechanisms and their association with the N removal performance of *** laboratory woodchip bioreactors were continuously operated for 360 days under three influent N level treatments,and the results showed that the average removal rate of TN was 45.80 g N/(m3·day)when the influent N level was 100 mg N/L,which was better than 10 mg N/L and 50 mg N/*** succession of bacterial communities in response to influent N levels and DOM characteristics was an important driver of TN removal *** to high N levels enriched a copiotroph bacterial module(Module 1)detected by network analysis,including Phenylobacterium,Xanthobacteraceae,Burkholderiaceae,Pseudomonas,and Magnetospirillaceae,carrying N-cycle related genes for denitrification and ammonia assimilation by the rapid consumption of *** a process can increase carbon limitation to stimulate local organic carbon decomposition to enrich oligotrophswith fewer N-cycle potentials(Module 2).Together,this study reveals that the compositional change ofDOMand bacterial community succession are closely related to N removal performance,providing an ecological basis for developing techniques for N-rich effluent treatment.

关键词： Bacterial community succession Dissolved organic matter N removal performance Woodchip bioreactors

Physically Constrained Adaptive Deep Learning for Ocean Vertical-Mixing Parameterization

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

Advances in Atmospheric Sciences 2025年第1期42卷 165-177页

作者： Junjie FANG Xiaojie li Jin li Zhanao huang Yongqiang YU Xiaomeng huang Xi WU Chengdu University of Information Technology Chengdu 610225China Institute of Atmospheric Physics Chinese Academy of SciencesBeijing 100029China Tsinghua University Beijing 100084China

Existing traditional ocean vertical-mixing schemes are empirically developed without a thorough understanding of the physical processes involved,resulting in a discrepancy between the parameterization and forecast *** uncertainty in ocean-mixing parameterization is primarily responsible for the bias in ocean *** from deep-learning technology,we design the Adaptive Fully Connected Module with an Inception module as the baseline to minimize *** adaptively extracts the best features through fully connected layers with different widths,and better learns the nonlinear relationship between input variables and parameterization ***,to obtain more accurate results,we impose KPP(K-Profile Parameterization)and PP(Pacanowski–Philander)schemes as physical constraints to make the network parameterization process follow the basic physical laws more *** model data are calculated with human experience,lacking some unknown physical processes,which may differ from the actual data,we use a decade-long time record of hydrological and turbulence observations in the tropical Pacific Ocean as training *** physical constraints and a nonlinear activation function,our method catches its nonlinear change and better adapts to the oceanmixing parameterization *** use of physical constraints can improve the final results.

关键词： deep learning vertical-mixing parameterization ocean sciences adaptive network

Thermally triggered topological polymerization in diacetylene-functionalized covalent organic framework toward enhanced memristive properties

在线全文

学校读者我要写书评

暂无评论

Science China Chemistry 2025年

作者： Panke Zhou Yuxing huang Ziyue Yu Cong Zhang Qian Chen Yiping li chao lin Xiong Chen State Key Laboratory of Photocatalysis on Energy and Environment Key Laboratory of Advanced Carbon-Based Functional MaterialsCollege of Chemistry Fuzhou University

The development of stimuli-responsive switching memory devices and the elucidation of their switching mechanisms in specific environments are crucial for advancing the field of molecular electronics. Herein, we propose two distinct two-dimensional covalent organic frameworks (COFs), namely Py-EDA and Py-BDA, incorporating acetylene (-C≡C-) or diacetylene(-C≡C-C≡C-) moieties, respectively, targeting fabricate memory devices exhibiting stimuli-responsive switching *** findings demonstrate that the incorporation of acetylene units effectively modulates the electronic band structure and enhances the degree ofπ-conjugation, resulting in devices that exhibit typical bipolar nonvolatile memory performance. Notably,upon thermal treatment, the memory behavior of the ITO/Py-BDA/Ag device transitions to a write-once-read-many-times(WORM) mode, displaying decreased SET voltage, increased ON/OFF current ratio, and remarkable retention reliability and cycle stability. This switching behavior is attributed to the occurrence of interlayer solid-state topological polymerization at 350℃, leading to the transformation of diacetylene columnar arrays into enyne chains within Py-BDA, thereby further promoting interlayer charge transfer and separation.

关键词：