检索结果-南通市图书馆

Breeding and application of Jiafuzhan,a new elite early indica rice cultivar in China

在线全文

学校读者我要写书评

暂无评论

Frontiers in Biology 2007年第2期2卷 144-150页

作者： WANG Houcong HUANG Huakang QIU Simi ZHANG Shi FANG Yashun CAI Jinlei ZHENG Xuan HUANG Yumin CHEN Ruming sun chuanzhi CHEN Shuanglong CHI Xiaowen LIAO Xinying ZHANG Weiqing ZHONG Xinbin School of Life Sciences Xiamen UniversityXiamen 361005China Fujian Seed Station Fuzhou 350001China Xiamen Seed Management Station Xiamen 361012China Xiamen Agriculture Technology Extension Center Xiamen 361003China

After 20 years of dedicated research,Jiafuzhan has been successfully developed under the new technologies in breeding high-quality early indica rice cultivars.Its rice quality has almost reached the A-level Editable Rice of Agriculture Department of China,and its average production reaches 400-500 kg/(666.7 m^(2)).This new cultivar also has other characteristics such as enhanced resistance of blast and fallen,steady productivity,and strong adaptability.Jiafuzhan has been put into production of over 11.4×10^(4)hm^(2)in Fujian Province and has been introduced and extended in other Provinces like Jiangxi,Guangdong,and Guangxi,China.The successes of breeding Jiafuzhan is a solution to the existing perennial problems in the rice industry,such as poor grain quality of big-grain rice and early indica rice,low productivity,and poor blast resistance of elite rice.

关键词： Jiafuzhan early indica rice high quality

塑性铰区采用PVA纤维高强混凝土柱抗震性能

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

东南大学学报（自然科学版） 2023年第2期53卷 242-251页

作者：曾梓逸缪长青孙传智东南大学混凝土及预应力混凝土结构教育部重点实验室南京211189 东南大学土木工程学院南京211189 宿迁学院建筑工程学院宿迁223800

为了明确局部PVA纤维高强混凝土柱中轴压比、剪跨比和PVA纤维掺量对抗震性能的影响,对不同轴压比(0.2、0.3和0.4)、剪跨比(3.23、4.15和5.07)和PVA纤维体积分数(0、0.3%、0.5%和0.7%)的8根高强钢筋混凝土柱足尺试件进行了抗震性能试验,... 详细信息

为了明确局部PVA纤维高强混凝土柱中轴压比、剪跨比和PVA纤维掺量对抗震性能的影响,对不同轴压比(0.2、0.3和0.4)、剪跨比(3.23、4.15和5.07)和PVA纤维体积分数(0、0.3%、0.5%和0.7%)的8根高强钢筋混凝土柱足尺试件进行了抗震性能试验,分析了PVA纤维掺量、轴压比和剪跨比等参数对于高强钢筋混凝土柱耗能能力、自复位能力、强度退化性能、刚度退化性能以及弯矩曲率关系的影响规律.以有限元模拟软件OpenSees为平台建立试件模型,对轴压比和剪跨比进行扩展分析.研究结果表明,PVA纤维混凝土柱的延性、耗能能力明显更优,抗震性能更好;同时,轴压比和剪跨比对抗震性能影响显著,PVA纤维掺量对其影响较大;建立的有限元模型具有较高的准确性.

关键词： PVA纤维混凝土抗震性能试验 OpenSees 轴压比剪跨比 PVA纤维掺量

在线全文

学校读者我要写书评

暂无评论

基于模型融合的装饰过程造价预测研究

长春大学学报 2023年第9期33卷 31-36页

作者：孙传志大连财经学院管理学院辽宁大连116000

利用大数据为各行业提供数据分析服务是当前的热点。为了提高造价预测的效率和精度,研究利用Stacking融合模型算法构建基于模型融合的装饰过程造价预测模型。结果显示:Stacking融合模型在样本编号5中的预测运行时间最短,为8s;在样本编... 详细信息

利用大数据为各行业提供数据分析服务是当前的热点。为了提高造价预测的效率和精度,研究利用Stacking融合模型算法构建基于模型融合的装饰过程造价预测模型。结果显示:Stacking融合模型在样本编号5中的预测运行时间最短,为8s;在样本编号63中的绝对误差最大,为100元/m^(2),相对误差为5%。以上结果表明,基于模型融合的装饰过程造价预测模型在工程造价预测领域具有一定的应用效果。

关键词：造价预测模型融合 Stacking算法

现代家居设计的怀旧风——以80后的怀旧情怀为例

在线全文

学校读者我要写书评

暂无评论

黑河学院学报 2023年第10期14卷 172-175页

作者：孙传志大连财经学院辽宁大连116000

在当代家居设计中,怀旧已然不仅仅是一种风格,一种时尚,更成为了一种心理的满足,一种情怀的释放。80后作为我国城市化发展承上启下的一代,不仅在我国城市化建设过程中起到了举足轻重的作用,同时,也为我国家居设计的发展起到了主流推动... 详细信息

在当代家居设计中,怀旧已然不仅仅是一种风格,一种时尚,更成为了一种心理的满足,一种情怀的释放。80后作为我国城市化发展承上启下的一代,不仅在我国城市化建设过程中起到了举足轻重的作用,同时,也为我国家居设计的发展起到了主流推动的作用。在当代80后身上,怀旧情怀体现的极为明显,关于这一点在80后的家居设计中便可窥见一斑,同时80后又是非常容易接纳新事物的一代,也正因为这个原因才将80后誉为承上启下的一代,也将其视为是未来我国家居设计发展方向的风向标。

关键词：家居设计怀旧风格 80后风格转向

Organic thin-film transistors and related devices in life and health monitoring

在线全文

学校读者我要写书评

暂无评论

Nano Research 2024年第2期17卷 426-444页

作者： Chenfang sun Tie Wang Tianjin Key Laboratory of Drug Targeting and Bioimaging Life and Health Intelligent Research InstituteTianjin University of TechnologyTianjin 300384China

The early determination of disease-related biomarkers can significantly improve the survival rate of patients.Thus,a series of explorations for new diagnosis technologies,such as optical and electrochemical methods,have been devoted to life and health monitoring.Organic thin-film transistor(OTFT),as a state-of-the-art nano-sensing technology,has attracted significant attention from construction to application owing to the merits of being label-free,low-cost,facial,and rapid detection with multi-parameter responses.Nevertheless,interference from non-specific adsorption is inevitable in complex biological samples such as body liquid and exhaled gas,so the reliability and accuracy of the biosensor need to be further improved while ensuring sensitivity,selectivity,and stability.Herein,we overviewed the composition,mechanism,and construction strategies of OTFTs for the practical determination of disease-related biomarkers in both body fluids and exhaled gas.The results show that the realization of bio-inspired applications will come true with the rapid development of high-effective OTFTs and related devices.

关键词： organic thin-film transistors biosensors biomarkers organic bioelectronics organic semiconductors healthcare

Pretreating and normalizing metabolomics data for statistical analysis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Genes & Diseases 2024年第3期11卷 188-205页

作者： Jun sun Yinglin Xia Division of Gastroenterology and Hepatology Department of MedicineDepartment of Microbiology/ImmunologyUIC Cancer CenterUniversity of Illinois ChicagoJesse Brown VA Medical Center Chicago(537)ChicagoIL 60612USA Division of Gastroenterology and Hepatology Department of MedicineUniversity of Illinois ChicagoChicagoIL 60612USA

Metabolomics as a research field and a set of techniques is to study the entire small molecules in biological samples.Metabolomics is emerging as a powerful tool generally for pre-cision medicine.Particularly,integration of microbiome and metabolome has revealed the mechanism and functionality of microbiome in human health and disease.However,metabo-lomics data are very complicated.Preprocessing/pretreating and normalizing procedures on metabolomics data are usually required before statistical analysis.In this review article,we comprehensively review various methods that are used to preprocess and pretreat metabolo-mics data,including MS-based data and NMR-based data preprocessing,dealing with zero and/or missing values and detecting outliers,data normalization,data centering and scaling,data transformation.We discuss the advantages and limitations of each method.The choice for a suitable preprocessing method is determined by the biological hypothesis,the characteristics of the data set,and the selected statistical data analysis method.We then provide the perspective of their applications in the microbiome and metabolome research.

关键词： Data centering and scaling Data normalization Data transformation Missing values MS-Baseddata preprocessing NMRData preprocessing Outliers Preprocessing/pretreatment

Fossil Equidae in the Linxia Basin with Biostratigraphic and Paleozoogeographic Significance

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Geologica Sinica(English Edition) 2024年第1期98卷 1-9页

作者： sun Boyang Key Laboratory of Vertebrate Evolution and Human Origins of the Chinese Academy of Sciences Institute of Vertebrate Paleontology and PaleoanthropologyChinese Academy of SciencesBeijing 100044China

The Linxia Basin is characterized by an abundance of Cenozoic sediments,that contain exceptionally rich fossil resources.Equids are abundant in the Linxia Basin,the fossil record of equids in this region including 16 species that represent 10 genera.In comparison to other classic late Cenozoic areas in China,the Linxia Basin stands out,because the fauna and chronological data accompanying Linxia equids render them remarkably useful for biostratigraphy.The anchitheriines in the region,such as Anchitherium and Sinohippus,represent early equids that appeared in the late stages of the middle and late Miocene,respectively.Among the equines,most species of Chinese hipparions have been identified in the Linxia Basin and some species of the genera Hipparion and Hippotherium have FAD records for China.Furthermore,Equus eisenmannae is one of the earliest known species of Equus in the Old World and is well-represented at the Longdan locality.Some species with precise geohistorical distributions can serve as standards for high-resolution chronological units within this framework.Located at the eastern margin of the Tibetan Plateau and subject to considerable uplift,the Linxia Basin has served as a biogeographic transition area for equids throughout the late Cenozoic.

关键词： Equidae Cenozoic biostratigraphy paleozoogeography Linxia Basin

ONE-PARAMETER FINITE DIFFERENCE METHODS AND THEIR ACCELERATED SCHEMES FOR SPACE-FRACTIONAL SINE-GORDON EQUATIONS WITH DISTRIBUTED DELAY

在线全文

学校读者我要写书评

暂无评论

Journal of Computational Mathematics 2024年第3期42卷 705-734页

作者： Tao sun Chengjian Zhang Haiwei sun School of Mathematics and Statistics Huazhong University of Science and TechnologyWuhan 430074China Hubei Key Laboratory of Engineering Modeling and Scientific Computing Huazhong University of Science and TechnologyWuhan 430074China Department of Mathematics University of MacaoMacaoChina

This paper deals with numerical methods for solving one-dimensional(1D)and twodimensional(2D)initial-boundary value problems(IBVPs)of space-fractional sine-Gordon equations(SGEs)with distributed delay.For 1D problems,we construct a kind of oneparameter finite difference(OPFD)method.It is shown that,under a suitable condition,the proposed method is convergent with second order accuracy both in time and space.In implementation,the preconditioned conjugate gradient(PCG)method with the Strang circulant preconditioner is carried out to improve the computational efficiency of the OPFD method.For 2D problems,we develop another kind of OPFD method.For such a method,two classes of accelerated schemes are suggested,one is alternative direction implicit(ADI)scheme and the other is ADI-PCG scheme.In particular,we prove that ADI scheme can arrive at second-order accuracy in time and space.With some numerical experiments,the computational effectiveness and accuracy of the methods are further verified.Moreover,for the suggested methods,a numerical comparison in computational efficiency is presented.

关键词： Fractional sine-Gordon equation with distributed delay One-parameter finite difference methods Convergence analysis ADI scheme PCG method

NADPH oxidase 4(NOX4)as a biomarker and therapeutic target in neurodegenerative diseases

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2024年第9期19卷 1961-1966页

作者： Napissara Boonpraman sun Shin Yi BK21 four Program Department of Medical SciencesSoonchunhyang UniversityAsanSouth Korea Department of Biomedical Laboratory Science Soonchunhyang UniversityAsanSouth Korea iConnectome Co.Ltd.CheonanSouth Korea

Diseases like Alzheimer’s and Parkinson’s diseases are defined by inflammation and the damage neurons undergo due to oxidative stress. A primary reactive oxygen species contributor in the central nervous system, NADPH oxidase 4, is viewed as a potential therapeutic touchstone and indicative marker for these ailments. This in-depth review brings to light distinct features of NADPH oxidase 4, responsible for generating superoxide and hydrogen peroxide, emphasizing its pivotal role in activating glial cells, inciting inflammation, and disturbing neuronal functions. Significantly, malfunctioning astrocytes, forming the majority in the central nervous system, play a part in advancing neurodegenerative diseases, due to their reactive oxygen species and inflammatory factor secretion. Our study reveals that aiming at NADPH oxidase 4 within astrocytes could be a viable treatment pathway to reduce oxidative damage and halt neurodegenerative processes. Adjusting NADPH oxidase 4 activity might influence the neuroinflammatory cytokine levels, including myeloperoxidase and osteopontin, offering better prospects for conditions like Alzheimer’s disease and Parkinson’s disease. This review sheds light on the role of NADPH oxidase 4 in neural degeneration, emphasizing its drug target potential, and paving the path for novel treatment approaches to combat these severe conditions.

关键词： Alzheimer’s disease astrocytes mitochondrial dysfunction myeloperoxidase NADPH oxidase 4 NADPH oxidase 4 inhibitors neurodegenerative diseases osteopontin Parkinson’s disease reactive oxygen species