检索结果-南通市图书馆

Journal of Meteorological Research 2024年第3期38卷 504-529页

作者： Yingjie WANG jianping wu Kaijun REN College of Computer Science and Technology National University of Defense TechnologyChangsha410600China College of Meteorology and Oceanography National University of Defense TechnologyChangsha410600China

In numerical weather prediction(NWP),the parameterization of orographic drag plays an important role in representing subgrid orographic *** subgrid orographic parameters are the key input to the parameterization of orographic ***,the subgrid orographic parameters in most NWP models were produced based on elevation datasets generated many years ago,with a coarse resolution and low *** this paper,using the latest high-quality elevation data and considering the applicable scale range of the subgrid orographic parameters,we construct the orographic parameters,including the subgrid orographic standard deviation,anisotropy,orientation,and slope,that are required as input to the orographic gravity wave drag(OGWD)***,we introduce the newly constructed orographic parameters into the Yin-He Global Spectral Model(YHGSM),optimize the description of the orographic effect in the model,and improve the simulation of two typical heavy rainfall events in Beijing and Henan.

关键词： subgrid orographic parameters orographic drag heavy rainfall Yin-He Global Spectral Model(YHGSM) parameterization

Targeting gut microbiota in osteoporosis:impact of the microbial based functional food ingredients

在线全文

学校读者我要写书评

暂无评论

Food Science and Human Wellness 2024年第1期13卷 1-15页

作者： Pauline Duffuler Khushwant S.Bhullar jianping wu Department of Agricultural Food&Nutritional Science University of AlbertaEdmonton T6G 2P5Canada

Osteoporosis is the most common bone disorder,characterized by low bone mineral density and microarchitectural deterioration of the bone tissue,which increases the susceptibility to *** the past decade,emerging research findings reported the implication of gut microbiota on bone health and osteoporosis *** patients or individuals with a lower bone mineral density exhibit an alteration of the gut microbiota at several taxonomic *** reports demonstrate that gut microbiota regulates bone metabolism through the modulation of the gut function(mineral availability and absorption,gut integrity),the immune system,and the endocrine ***,based on the vital role of gut microbiota on bone health,it has emerged as a novel therapeutic target for the prevention of bone loss and the treatment of ***-based functional food ingredients,such as probiotics,prebiotics,synbiotics,and fermented foods,have been developed to alter the gut microbiota composition and function and thus,to provide benefits to the host bone *** promising initial results,microbial-based therapies are still under ***,additional animal studies and clinical trials are needed to understand the interactions between gut microbiota and bone metabolism before further applications.

关键词： Dysbiosis Bone health Probiotic Prebiotic Fermented food Synbiotic

Effect of simulated gastrointestinal digestion on antioxidant,and anti-inflammatory activities of bioactive peptides generated in sausages fermented with Staphylococcus simulans QB7

在线全文

学校读者我要写书评

暂无评论

Food Science and Human Wellness 2024年第3期13卷 1662-1671页

作者： Hongying Li Hongbing Fan Zihan Wang Qiujin Zhu jianping wu Laboratory of Animal Genetics Breeding and Reproduction in the Plateau Mountainous RegionMinistry of EducationCollege of Life SciencesGuizhou UniversityGuiyang 550025China Department of Agricultural Food and Nutritional ScienceUniversity of AlbertaAlberta T6G 2P5Canada Department of Animal and Food Sciences University of KentuckyLexington 40546United States School of Liquor and Food Engineering Guizhou UniversityGuiyang 550025China

Dry-fermented sausages are a good source of bioactive peptides,whose stability against gastrointestinal(GI)digestion determines their *** study focused on evaluating the effect of peptide extracts from sausages fermented with Staphylococcus simulans QB7 during in vitro simulated GI digestion,including peptide profiles and antioxidant and anti-inflammatory *** present in sausages were degraded during digestion,with molecular weight reduced from>12 kDa to<1.5 ***,the content of amino acids increased from 381.15 to 527.07 mg/g,especially tyrosine being found only after GI *** anti-inflammatory activities were increased after GI digestion,however,the changes in antioxidant activities were the opposite.A total number of 255,252 and 386 peptide sequences were identified in undigested,peptic-digested and GI-digested samples,***,BIOPEP-UWM and admetSAR were used to further predict the functional properties and intestinal absorption of the identified peptide sequences from GI ***,18 peptides were discovered to possess either antioxidant or anti-inflammatory capacities.

关键词： Gastrointestinal digestion Sausages Bioaccessibility Anti-inflammatory activities

Templates for the synthesis of zeolites

在线全文

学校读者我要写书评

暂无评论

结构化学 2024年第4期43卷 48-58页

作者： Huimin Luan Qinming wu jianping wu Xiangju Meng Feng-Shou Xiao College of Chemical and Biological Engineering Zhejiang UniversityHangzhou310027China Kente Catalysts Inc. Fengxi West RoadModern Industrial ClusterXianju CountyZhejiang317300China College of Chemical and Biological Engineering Zhejiang UniversityHangzhou310027China Kente Catalysts Inc. Fengxi West RoadModern Industrial ClusterXianju CountyZhejiang317300China Key Laboratory of Applied Chemistry of Zhejiang Province Department of ChemistryZhejiang UniversityHangzhou310007China

Though zeolites have been successfully synthesized for several decades,the roles of templates for zeolite synthesis are still not fully understood ***,many types of templates have been employed such as inorganic alkali metal ions,organic quaternary ammonium cations,organic amines,organic quaternary phosphonium cations,metal complexes and zeolite seeds,and the roles are mainly summarized into three aspects:structure-directing,space-filling and *** order to synthesize zeolites efficiently,the proposed principles to guide zeolite synthesis are the stabilization of energy between templates and zeolite framework,charge density mis-matching(CDM)and structure matching between zeolite frameworks and *** purpose of this review is to briefly summarize the progresses in recent years,clearly showing the roles of the templates for zeolite synthesis.

关键词： Zeolites Templates Zeolite synthesis Zeolite structure

Rubber-based agroforestry systems modify the soil fungal composition and function in Southwest China

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

Soil Ecology Letters 2024年第3期6卷 97-107页

作者： Zhenyu Hong Xinai Li Debao Li jianping wu Ministry of Education Key Laboratory for Transboundary Ecosecurity of Southwest China Yunnan Key Laboratory of Plant Reproductive Adaptation and Evolutionary Ecology and Institute of BiodiversitySchool of Ecology and Environmental ScienceYunnan UniversityKunming 650500China Laboratory of Soil Ecology and Health in Universities of Yunnan Province Yunnan UniversityKunming 650500China Dali University Dali 671003China

Rubber-based agroforestry systems have been recognized as a practical and sustainable solution to promote the development of agriculture and the ***,interactions between fungal communities and these systems are still not sufficiently *** this study,we compared the abundance,diversity,and community composition of soil fungi in four treatments,including rubber monoculture and three rubber-based agroforestry treatments involving intercropping with Camellia sinensis,Coffea liberica,and Theobroma *** results revealed that the community composition exhibited significant variation between the four different treatments,while the overall soilα-diversity was relatively stable across all *** pH and soil organic carbon were significantly related to the structure of the fungal *** particular,the complexity of the functional fungal network increased in response to agroforestry treatments,promoting beneficial fungi and suppressing certain plant *** results suggest that rubber-based agroforestry systems can promote the health of soil microbial community composition,and therefore provide an effective approach to enhancing soil quality.

关键词： agroforestry system with intercropping rubber monoculture fungal community fungal function tropical forest

Advances in seismological methods for characterizing fault zone structure

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

Earthquake Science 2024年第2期37卷 122-138页

作者： Yan Cai jianping wu Yaning Liu Shijie Gao Institute of Geophysics China Earthquake AdministrationBeijing 100081China Key Laboratory of Earthquake Source Physics China Earthquake AdministrationBeijing 100081China

Large earthquakes frequently occur along complex fault *** seismic rupture and long-term fault evolution requires constraining the geometric and material properties of fault zone *** provide a comprehensive overview of recent advancements in seismological methods used to study fault zone structures,including seismic tomography,fault zone seismic wave analysis,and seismicity *** conditions limit our current ability to fully characterize fault zones,for example,insufficient imaging resolution to discern small-scale anomalies,incomplete capture of crucial fault zone seismic waves,and limited precision in event location *** seismic arrays can overcome these limitations and enable more detailed investigations of fault zone ***,we present new insights into the structure of the Anninghe-Xiaojiang fault zone in the southeastern margin of the Qinghai-Xizang Plateau based on data collected from a dense seismic *** found that utilizing a dense seismic array can identify small-scale features within fault zones,aiding in the interpretation of fault zone geometry and material properties.

关键词： fault zone structure tomography fault zone wave seismic activity Anninghe-Xiaojiang fault zone

Three dimensional velocity model and its tectonic implications at China Seismic Experimental Site,eastern margin of the Tibetan Plateau

在线全文

学校读者我要写书评

暂无评论

Science China Earth Sciences 2024年第7期67卷 2268-2290页

作者： jianping wu Yan CAI Wei WANG Weilai WANG Changzai WANG Lihua FANG Yaning LIU Jing LIU Institute of Geophysics China Earthquake AdministrationBeijing 100081China Beijing Baijiatuan Earth Science National Observation and Research Station Beijing 1095China Beijing Earthquake Agency Beijing 100080China

The China Seismic Experimental Site(CSES)is located at the intersection of the Tibetan Plateau,South China Block,and Indian Plate and has complex geological settings and intense crustal deformation,making it one of the most seismically active areas in Chinese mainland.A high-resolution,three-dimensional(3D)crust-mantle velocity structure is crucial for understanding seismotectonic environments,lithospheric deformation mechanisms,and deep dynamic *** first constructed a high-vertical-resolution 3D initial velocity model using the joint inversion of receiver functions and surface waves and then obtained a 3D P-and S-wave velocity model(CSES-VM1.0)with the highest lateral resolution of 0.25°for the CSES using double-difference *** to the limitations of the Sn observation data,the resolution of the S-wave velocity model in the lower crust and upper mantle was reduced,making it closer to the initial model provided by joint inversion.A comparison with explosive-source seismic data showed that the synthetic P-wave first-arrival travel times of the new model were closer to the observations than those of the previous velocity *** velocity cross-sections across the source areas of the 2022 Lushan MS6.1 and Ludian MS6.8 earthquakes reveal that the former earthquake occurred near a weak contact zone between the Tibetan Plateau and Sichuan Basin,and the rupture of the latter earthquake occurred in a granitic area,with the northern end blocked by rigid high-velocity bodies.A clear high-velocity anomaly zone is distributed along the western margin of the Yangtze Block,revealing the spatial distribution of Neoproterozoic intermediate-basic *** high-velocity zone significantly controls the morphology of fault zones and influences the rupture processes of major *** northeast-southwest and north-south trending high-velocity anomalies were found near Panzhihua,potentially related to Neoproterozoic and Middle-Late Permian intermediate

关键词： Eastern Tibetan Plateau China Seismic Experimental Site Yangtze Block Velocity model Double-difference tomography

Linkages among leaf nutrient concentration,resorption efficiency, litter decomposition and their stoichiometry to canopy nitrogen addition and understory removal in subtropical plantation

在线全文

学校读者我要写书评

暂无评论

Ecological Processes 2024年第02期13卷 90-102页

作者： Jawad Ali Shah Wenfei Liu Saif Ullah Honglang Duan Fangfang Shen Yingchun Liao Guomin Huang jianping wu Ministry of Education Key Laboratory for Transboundary Ecosecurity of Southwest China Yunnan Key Laboratory of Plant Reproductive Adaptation and Evolutionary Ecology and Institute of Biodiversity School of Ecology and Environmental Science Yunnan University Laboratory of Soil Ecology and Health in Universities of Yunnan Province Yunnan University Jiangxi Key Laboratory for Restoration of Degraded Ecosystems & Watershed Ecohydrology Nanchang Institute of Technology Key Laboratory of Forest Cultivation in Plateau Mountain of Guizhou Province Institute for Forest Resources and Environment of Guizhou College of ForestryGuizhou University

Background The prevalence of understory removal and anthropogenic nitrogen(N) deposition has significantly altered the ecological processes of forest ecosystems at both regional and global scales. However, it remains a pressing challenge to understand how N deposition and understory removal affect leaf nutrient dynamics, nutrient resorption, litter decomposition, and their linkages for better managing forest ecosystems under nutrient imbalances induced by N enrichment. To address this research gap, a field manipulation experiment was carried out in a subtropical Cunninghamia lanceolata plantation with four treatments including: control(CK), canopy N addition(CN), understory removal(UR), and canopy N addition plus understory removal(CN × UR). Green and senesced leaf N and phosphorus(P) concentrations, N and P resorption efficiencies, litter decomposition, and their correlations were *** The results revealed that the average N concentrations of green early and late leaves in UR were increased by 6.61 and 18.89% compared to CK. UR had the highest whereas CN had the lowest P concentrations in green leaves across the two sampling seasons. Following this, UR, leaf type, season, and their interactions significantly affected leaf N, P, and N:P(P < 0.05). The highest leaf N resorption(32.68%) and P resorption efficiencies(63.96%) were recorded in UR. Litter decomposition was significantly retarded in UR(P < 0.01) relative to CN. The regression analysis demonstrated that leaf nutrient status was significantly interconnected with leaf nutrient resorption efficiencies. In addition, leaf nutrient dynamics were strongly correlated with litter nutrients, indicating that both were *** These findings can deepen our knowledge of biogeochemical cycling and reveal contrasting nutrientacquisition strategies on N and P limitation in response to UR and CN. Considering the P limitation, it is important to note that P was resorbed more efficiently, illustrating a

关键词： Nutrient resorption Nitrogen deposition Litter decomposition Stoichiometry Understory removal Subtropical plantation

Oral administration of egg white ovotransferrin prevents osteoporosis in ovariectomized rats

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Food Science and Human Wellness 2024年第5期13卷 2562-2572页

作者： Nan Shang Xiaoyu Bao Michael Doschak jianping wu Department of Agricultural Food and Nutritional ScienceUniversity of AlbertaEdmonton T6G 2P5Canada College of Engineering China Agricultural UniversityBeijing 100083China Key Laboratory of Precision Nutrition and Food Quality Department of Nutrition and HealthyChina Agricultural UniversityBeijing 100193China Faculty of Pharmacy&Pharmaceutical Sciences University of AlbertaEdmonton T6G 2H5Canada

Ovotransferrin,an iron-binding glycoprotein,accounting for approximately 12%of egg white protein,is a member of transferrin fam *** previous studies showed that ovotransferrin stimulates the proliferation and differentiation of osteoblasts,while inhibits osteoclastogenesis and resorption *** work aims to study the efficacy of orally administered ovotransferrin on the prevention of osteoporosis using ovariectomized(OVX)Sprague-Dawley *** administration of ovotransferrin showed no negative effect on body weight,food intake and organ *** 12-week treatment,feeding ovotransferrin at a dose of 1%(1 g ovotransferrin/100 g diet)prevented OVX-induced bone loss and maintained relatively high bone mineral density and integrated bone *** serum concentration of biomarkers indicating bone formation was increased in ovotransferrin administration groups,while the bone resorption biomarkers were *** feeding also decreased the production of serum cytokine TNF-αand IL-6,which are two stimulators for osteoclast *** addition to its direct regulatory role on bone turnover,ovotransferrin supplementation might benefit osteoporosis prevention by inhibiting adipogenesis,and regulating immune *** results suggested the potential application of ovotransferrin as a functional food ingredient on the prevention of osteoporosis.

关键词： Ovotransferrin Ovariectomized(OVX)rats Bone mineral density Bone microarchitecture Bone resorption Inflammation

The accessible seismological dataset of a high-density 2D seismic array along Anninghe fault

在线全文

学校读者我要写书评

暂无评论

Earthquake Science 2024年第1期37卷 67-77页

作者： Weifan Lu Zeyan Zhao Han Yue Shiyong Zhou jianping wu Xiaodong Song School of Earth and Space Sciences Peking UniversityBeijing 100871China Institute of Geophysics China Earthquake AdministrationBeijing 100081China

The scientific goal of the Anninghe seismic array is to investigate the detailed geometry of the Anninghe fault and the velocity structure of the fault *** 2D seismic array is composed of 161 stations forming sub-rectangular geometry along the Anninghe fault,which covers 50 km and 150 km in the fault normal and strike directions,respectively,with~5 km *** data were collected between June 2020 and June 2021,with some level of temporal *** types of instruments,***-05A and SmartSolo,are used in this *** quality and examples of seismograms are provided in this *** the data protection period ends(expected in June 2024),researchers can request a dataset from the National Earthquake Science Data Center.

关键词： Anninghe fault seismological dataset data share