检索结果-南通市图书馆

Disentangling the contributions of arbuscular mycorrhizal fungi to soil multifunctionality

在线全文

学校读者我要写书评

暂无评论

Pedosphere 2024年第2期34卷 269-278页

作者： Fayuan WANG Zed RENGEL College of Environment and Safety Engineering Qingdao University of Science and TechnologyQingdao 266042(China) UWA School of Agriculture and Environment University of Western AustraliaPerth WA 6009(Australia) Institute for Adriatic Crops and Karst Reclamation Split 21000(Croatia)

Soil multifunctionality represents a range of soil processes driven by the interactions between soil abiotic and biotic *** a group of ubiquitous fungi that form mutualistic symbiotic associations with a vast array of terrestrial plants,arbuscular mycorrhizal(AM)fungi may play a critical role in maintaining soil multifunctionality,but the characteristics of their contributions remain to be *** mini review aims to disentangle the contributions of AM fungi to soil *** provide a framework of concepts about AM fungi making crucial contributions to maintaining multiple soil functions,including primary productivity,nutrient cycling,water regulation and purification,carbon and climate regulation,habitat for biodiversity,disease and pest control,and pollutant degradation and detoxification,via a variety of pathways,particularly contributing to soil and plant *** review contends that AM fungi,as a keystone component of soil microbiome,can govern soil multifunctionality,ultimately promoting ecosystem services.

关键词： carbon neutrality ecosystem functions and services nutrient cycling organic matter decomposition soil functions

The role of corneal endothelium in macular corneal dystrophy development and recurrence

在线全文

学校读者我要写书评

暂无评论

Science China(Life Sciences) 2024年第2期67卷 332-344页

作者： Bi-Ning Zhang Benxiang Qi Chunxiao Dong Bin Zhang Jun Cheng Xin Wang Suxia Li Xiaoyun Zhuang Shijiu Chen Haoyun Duan Dewei Li Sujie Zhu Guoyun Li Yihai Cao Qingjun Zhou Lixin Xie Eye Institute of shandong First Medical University Qingdao Eye Hospital of Shandong First Medical UniversityQingdao 266071China State key Laboratory Cultivation Base Shandong Provincial Key Laboratory of OphthalmologyQingdao 266071China School of Ophthalmology Shandong First Medical UniversityQingdao 250021China Department of Medicine Qingdao UniversityQingdao 266071China Eye Institute of shandong First Medical University Eye Hospital of Shandong First Medical University(Shandong Eye Hospital)Jinan 250021China Department of Ophthalmology School of Clinical MedicineWeifang Medical UniversityWeifang 261072China Institute of Translational Medicine College of MedicineQingdao UniversityQingdao 266071China key Laboratory of Marine Drugs of Ministry of Education Shandong Provincial Key Laboratory of Glycoscience and GlycotechnologySchool of Medicine and PharmacyOcean University of ChinaQingdao 266071China Laboratory for Marine Drugs and Bioproducts Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266071China Department of Microbiology Tumor and Cell BiologyBiomedicumKarolinska InstitutetStockholm 17177Sweden

Macular corneal dystrophy(MCD)is a progressive,bilateral stromal dystrophic disease that arises from mutations in carbohydrate sulfotransferase 6(CHST6).Corneal transplantation is the ultimate therapeutic solution for MCD ***,postoperative recurrence remains a significant *** conducted a retrospective review of a clinical cohort comprising 102 MCD patients with 124 eyes that underwent either penetrating keratoplasty(PKP)or deep anterior lamellar keratoplasty(DALK).Our results revealed that the recurrence rate was nearly three times higher in the DALK group(39.13%,9/23 eyes)compared with the PKP group(10.89%,11/101 eyes),suggesting that surgical replacement of the corneal endothelium for treating MCD is advisable to prevent postoperative *** experimental data confirmed the robust m RNA and protein expression of CHST6 in human corneal endothelium and the rodent homolog CHST5 in mouse *** knockdown of wild-type Chst5 in mouse corneal endothelium(AC^(siChst5)),but not in the corneal stroma,induced experimental MCD with similar extracellular matrix synthesis impairments and corneal thinning as observed in MCD *** carrying Chst5 point mutation also recapitulated clinical phenotypes of MCD,along with corneal endothelial *** injection of wild-type Chst5 rescued the corneal impairments in AC^(siChst5)mice and retarded the disease progression in Chst5 mutant ***,our study provides new mechanistic insights and therapeutic approaches for MCD treatment by highlighting the role of corneal endothelium in MCD development.

关键词： macular corneal dystrophy recurrence corneal endothelium keratan sulfate penetrating keratoplasty

A Sharding Scheme Based on Graph Partitioning Algorithm for Public Blockchain

在线全文

学校读者我要写书评

暂无评论

Computer Modeling in Engineering & Sciences 2024年第6期139卷 3311-3327页

作者： Shujiang Xu Ziye Wang Lianhai Wang Miodrag J.Mihaljevi′c Shuhui Zhang Wei Shao Qizheng Wang key Laboratory of Computing Power Network and Information Security Ministry of EducationShandong Computer Science CenterQilu University of Technology(Shandong Academy of Sciences)Jinan250014China shandong provincial key Laboratory of Computer Networks Shandong Fundamental Research Center for Computer ScienceJinan250014China Mathematical Institute The Serbian Academy of Sciences and ArtsBelgrade11000Serbia

Blockchain technology,with its attributes of decentralization,immutability,and traceability,has emerged as a powerful catalyst for enhancing traditional industries in terms of optimizing business ***,transaction performance and scalability has become the main challenges hindering the widespread adoption of *** to its inability to meet the demands of high-frequency trading,blockchain cannot be adopted in many *** improve the transaction capacity,researchers have proposed some on-chain scaling technologies,including lightning networks,directed acyclic graph technology,state channels,and shardingmechanisms,inwhich sharding emerges as a potential scaling ***,excessive cross-shard transactions and uneven shard workloads prevent the sharding mechanism from achieving the expected *** paper proposes a graphbased sharding scheme for public blockchain to efficiently balance the transaction *** crossshard transactions and evening-out workloads among shards,the scheme reduces transaction confirmation latency and enhances the transaction capacity of the ***,the scheme can achieve a high-frequency transaction as well as a better blockchain *** results show that the scheme effectively reduces the cross-shard transaction ratio to a range of 35%-56%and significantly decreases the transaction confirmation latency to 6 s in a blockchain with no more than 25 shards.

关键词： Blockchain sharding graph partitioning algorithm

A Parallel Discrete Event Simulation Engine for the Low-Earth-Orbit Satellite Constellation Networks

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 Communications 2024年第8期21卷 264-275页

作者： Su Hailong Liu Yaoqi Zhou Yiqing Shi Jinglin Li Hongguang Qian Manli Institute of Computing Technology Chinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China State key Lab of Processors Institute of Computing TechnologyCASBeijing 100190China Zhongke Nanjing Mobile Communication&Computing Innovation Institute Nanjing 211135China Beijing Sylincom Technology Co. Beijing 100190China

Low-Earth-Orbit satellite constellation networks(LEO-SCN)can provide low-cost,largescale,flexible coverage wireless communication *** dynamics and large topological sizes characterize *** development and application testing of LEO-SCN are challenging to carry out in a natural *** platforms are a more effective means of technology *** available simulators have a single function and limited simulation *** needs to be a simulator for full-featured *** this paper,we apply the parallel discrete-event simulation technique to the simulation of LEO-SCN to support large-scale complex system simulation at the packet *** solve the problem that single-process programs cannot cope with complex simulations containing numerous entities,we propose a parallel mechanism and algorithms LP-NM and LP-YAWNS for *** the experiment,we use ns-3 to verify the acceleration ratio and efficiency of the above *** results show that our proposed mechanism can provide parallel simulation engine support for the LEO-SCN.

关键词： constellation low earth orbit satellite ns-3 null-message parallel discrete-event simulation

Rational construction of CuFe_(2)O_(4)@C/Cd_(0.9)Zn_(0.1)S S-scheme heterojunction photocatalyst for extraordinary photothermal-assisted photocatalytic H_(2) evolution

在线全文

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2024年第5期92卷 240-249页

作者： Dong Zhang Minghui Zhu Ran Qin Peixian Chen Maoye Yin Dafeng Zhang Junchang Liu Hengshuai Li Xipeng Pu Peiqing Cai School of Physics Science and Information Technology Shandong Key Laboratory of Optical Communication Science and TechnologyLiaocheng UniversityLiaocheng 252000ShandongChina School of Materials Science and Engineering Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell TechnologyLiaocheng UniversityLiaocheng 252000ShandongChina College of Optical and Electronic Technology China Jiliang UniversityHangzhou 310018ZhejiangChina

Rational design of photocatalyst to maximize the use of sunlight is one of the issues to be solved in photocatalysis *** this study,the CuFe_(2)O_(4)@C/Cd_(0.9)Zn_(0.1)S(CFO@C/CZS)S-scheme photocatalyst with photothermal effect was synthesized by ultrasonic self-assembly combined with *** dark CFO@C absorbed visible light and partly converted into heat to promote the hydrogen evolution *** presence of heterojunctions inhibited the photogenerated electron-hole *** graphite-carbon layer provided a stable channel for electron transfer,and the presence of magnetic CFO made recycle *** the action of photothermal assistance and heterojunction,the hydrogen evolution rate of the optimal CFO@C/CZS was 80.79 mmol g^(-1) h^(-1),which was 2.55 times and 260.61 times of that of pure CZS and CFO@C,***,the composite samples also exhibit excellent stability and a wide range of environmental *** experimental tests and first-principles simulation calculation methods,the plausible mechanism of photoactivity enhancement was *** work provided a feasible strategy of photothermal assistance for the development of heterojunction photocatalysts with distinctive hydrogen evolution.

关键词： Photothermal effect S-scheme heterojunction Photocatalytic hydrogen evolution First-principles calculations

Waste acid recovery utilizing monovalent cation permselective membranes through selective electrodialysis

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Chemical Engineering 2024年第7期71卷 45-57页

作者： Yanran Zhu Yue Zhou Qian Chen Rongqiang Fu Zhaoming Liu Liang Ge Tongwen Xu Anhui provincial Engineering Laboratory of Functional Membrane Materials and Technology Department of Applied ChemistrySchool of Chemistry and Materials ScienceUniversity of Science and Technology of ChinaHefei 230026China key Laboratory of Charged Polymeric Membrane Materials of shandong Province Shandong Tianwei Membrane Technology Co.Ltd.Weifang 261000China

Selective electrodialysis(SED)has surfaced as a highly promising membrane separation technique in the realm of acid recovery owing to its ability to effectively separate monovalent ions through the utilization of a potential ***,the current SED process is limited by conventional commercial monovalent cation permselective membranes(MCPMs).This study systematically investigates the use of an independently developed MCPM in the SED process for acid *** factors such as current density,volume ratio,initial ion concentration,and waste acid systems are *** independently developed MCPM offers several advantages over the commercial monovalent selective cation-exchange membrane(CIMS),including higher recovered acid concentration,better ion flux ratio,improved acid recovery efficiency,increased recovered acid purity,and higher current *** SED process with the MCPM achieves a recovered acid of 95.9%and a concentration of 2.3 mol·L^(–1) in the HCl/FeCl_(2) system,when a current density of 20 mA·cm^(-2) and a volume ratio of 1:2 are ***,in the H_(2)SO_(4)/FeSO_(4) system,a purity of over 99%and a concentration of 2.1 mol·L^(–1) can be achieved in the recovered *** study thoroughly examines the impact of operation conditions on acid recovery performance in the SED *** independently developed MCPM demonstrates outstanding acid recovery performance,highlighting its potential for future commercial utilization.

关键词： Selective electrodialysis Wastewater Monovalent cation permselective membranes Separation Recovery

{1012}twin–twin intersection-induced lattice rotation and dynamic recrystallization in Mg–6Al–3Sn–2Zn alloy

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

Journal of Magnesium and Alloys 2024年第4期12卷 1529-1539页

作者： Bin-Jiang Lv Sen Wang Fu-Hao Gao Ning Cui Yi-Nan Li Tie-Wei Xu Feng Guo School of Mechanical and Automotive Engineering Qingdao University of Technology266520China key Lab of industrial Fluid Energy Conservation and Pollution Control Qingdao University of Technology266520China

This study investigated the formation mechanism of new grains due to twin–twin intersections in a coarse-grained Mg–6Al–3Sn–2Zn alloy during different strain rates of an isothermal *** results of electron backscattered diffraction investigations showed that the activated twins were primarily{1012}tension twins,and 60°boundaries formed due to twin–twin intersections under different strain *** twin variants with 60°boundaries transformed into new grains through lattice rotations at a low strain rate(0.01 s^(−1)).At a high strain rate(10 s^(−1)),the regions surrounded by subgrain boundaries through high-density dislocation arrangement and the 60°boundaries transformed into new grains via dynamic recrystallization.

关键词： Mg alloy Twin-twin intersection Lattice rotation Dynamic recrystallization

Friction Characteristics Between Marine Clay and Construction Materials

在线全文

学校读者我要写书评

暂无评论

Journal of Ocean University of China 2024年第2期23卷 427-437页

作者： KOU Hailei HUANG Jiaming CHENG Yang College of Engineering Ocean University of ChinaQingdao 266100China Fourth Division Organization Department of the CPC Qingdao Municipal CommitteeQingdao 266100China

Structure-soil interface friction characteristics is of importance to investigate the interaction between engineering structures and soils,especially for offshore *** interface friction behavior between marine clay and structural materials with different roughness was studied in this paper by using 3D optical scanning tests,a modified direct shear device and numerical *** between the surface roughness of structures,water content and interface friction angle were presented by model *** increase of water contents decreased the interface friction *** interfaces with different roughness,the interface friction angles will be smaller than that of the soil when the water content exceeds a certain *** roughness of the interface and the water content of the soil are mutually coupled to influence the coefficient of friction(COF).This paper proposed a Finite Element Method(FEM)to simulate the interface direct shear tests of structures with different *** surface models with different roughness are established based on the structure data obtained by 3D *** Coupled Eulerian-Lagrangian(CEL)approach was employed to analyse soils sheared by irregular *** interface behavior for interfaces with different roughness under cyclic shear stresses was analyzed by FEM.

关键词： marine clay construction material interface friction behavior surface roughness Finite Element Method

Cellular atlases of ovarian microenvironment alterations by diet and genetically-induced obesity

在线全文

学校读者我要写书评

暂无评论

Science China(Life Sciences) 2024年第1期67卷 51-66页

作者： Yonghui Jiang Xueying Gao Yue Liu Xueqi Yan Huangcong Shi Rusong Zhao Zi-Jiang Chen Fei Gao Han Zhao Shigang Zhao Center for Reproductive Medicine Shandong UniversityJinan 250012China research Unit of Gametogenesis and Health of ART-Offspring Chinese Academy of Medical Sciences(No.2021RU001)Jinan 250012China key Laboratory of Reproductive Endocrinology of Ministry of Education Shandong UniversityJinan 250012China shandong key Laboratory of Reproductive Medicine Shandong Provincial Hospital Affiliated to Shandong First Medical UniversityJinan 250012China shandong provincial Clinical research Center for Reproductive Health Jinan 250012China National research Center of Assisted Reproductive Technology and Reproductive Genetics Shandong UniversityJinan 250012China The Affiliated Suzhou Hospital of Nanjing Medical University Suzhou Municipal HospitalGusu SchoolNanjing Medical UniversitySuzhou 215000China Center for reproductive medicine Ren Ji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai 200127China Shanghai key Laboratory for Assisted Reproduction and Reproductive Genetics Shanghai 200127China State key Laboratory of Stem Cell and Reproductive Biology Institute of ZoologyChinese Academy of ScienceBeijing 100101China

Obesity,which can arise from genetic or environmental factors,has been shown to cause serious damages to the reproductive *** ovary,as one of the primary regulators of female fertility,is a complex organ comprised of heterogeneous cell types that work together to maintain a normal ovarian microenvironment(OME).Despite its importance,the effect of obesity on the entire ovary remains poorly *** this study,we performed ovary single-cell and nanoscale spatial RNA sequencing to investigate how the OME changed under different kinds of obesity,including high-fat diet(HFD)induced obesity and Leptin ablation induced obesity(OB).Our results demonstrate that OB,but not HFD,dramatically altered the proportion of ovarian granulosa cells,theca-interstitial cells,luteal cells,and endothelial ***,based on the spatial dynamics of follicular development,we defined four subpopulations of granulosa cell and found that obesity drastically disrupted the differentiation of mural granulosa cells from small to large antral ***,HFD enhanced follicle-stimulating hormone(FSH)sensitivity and hormone conversion,while OB caused decreased sensitivity,inadequate steroid hormone conversion,and impaired follicular *** differences can be explained by the differential expression pattern of the transcription factor ***,our study provides a powerful and high-resolution resource for profiling obesity-induced OME and offers insights into the diverse effects of obesity on female reproductive disorders.

关键词： obesity ovarian microenvironment snRNA-seq Stereo-seq Foxo1