检索结果-南通市图书馆

Interannual Variability and Scenarios Projection of Sea Ice in Bohai Sea Part Ⅰ: Variation Characteristics and Interannual Hindcast

在线全文

学校读者我要写书评

暂无评论

Journal of Ocean University of China 2020年第2期19卷 272-280页

作者： jiao Yan huang Fei LIU Qingrong LI Ge LI Yaru yu Qingxi ZHAO Yiding Key Laboratory of Physical Oceanography Institute for Advanced Ocean StudyOcean University of ChinaQingdao 266100China North China Sea Marine Forecast Center Qingdao 266061China Laboratory for Ocean and Climate Dynamics Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China North China Sea Data&Information Service Qingdao 266061China

The Bohai Sea is one of the southernmost areas for sea ice formation in the northern *** ice disasters in this body of water severely affect marine activities and the safety of coastal *** this study,we analyze the variation characteristics of the sea ice in the Bohai Sea and establish an annual regression model based on predictable mode analysis *** results show the following:1)From 1970 to 2018,the average ice grade is(2.6±0.8),with a maximum of 4.5 and a minimum of *** Bay(LDB)has the heaviest ice conditions in the Bohai Sea,followed by Bohai Bay(BHB)and Laizhou Bay(LZB).Interannual variation is obvious in all three bays,but the linear decreasing trend is significant only in BHB.2)Three modes are obtained from empirical orthogonal function analysis,namely,single polarity mode with the same sign of anomaly in all of the three bays and strong interannual variability(82.0%),the north–south dipole mode with BHB and LZB showing an opposite sign of anomalies to that in LDB and strong decadal variations(14.5%),and a linear trend mode(3.5%).Critical factors are analyzed and regression equations are established for all the principal components,and then an annual hindcast model is established by synthesizing the results of the three *** model provides an annual spatial prediction of the sea ice in the Bohai Sea for the first time,and meets the demand of operational sea ice forecasting.

关键词： sea ice Bohai Sea variation characteristics interannual hindcast predictable mode analysis

Advances in ethnopharmacology,phytochemistry and pharmacology of Erigerontis Herba and its Chinese medicine prescriptions

在线全文

学校读者我要写书评

暂无评论

Traditional Medicine Research 2025年第1期10卷 44-61页

作者： Yang Zhou yuan-Yan huang Ding-yue Shang Ying Chen Meng Tian Cheng-yu Jin Xin Lu Bing-Chun Yan Han-Qing Pang Institute of Translational Medicine School of MedicineYangzhou UniversityYangzhou 225009China Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases Yangzhou UniversityYangzhou 225009China School of Medicine Nanjing University of Chinese MedicineNanjing 210023China State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources Guangxi Normal UniversityGuiling 541004China.

Erigerontis Herba(EH),the dried whole plant of Erigeron breviscapus,is well-known for circulating blood,activating meridians to alleviate pain,expelling wind,and clearing away *** has been extensively utilized in southern China for the treatment of stroke hemiplegia,chest stuffiness and pains,rheumatic arthralgia,headache,and *** review focuses on the botany,ethnopharmacology,phytochemistry,pharmacology and toxicity of EH and its related prescriptions to offer new insights for prospective research of *** information about EH was retrieved from ancient records and books,PubMed,China National Knowledge Infrastructure,Chinese Pharmacopoeia,Web of Science,Doctoral and Master’s Theses,and various electronic *** is a member of Compositae family and is mainly grown in southern *** Chinese medicine records that EH has the effects of circulating blood and removing blood stasis,expelling wind,and removing cold,as well as relieving rigidity of muscle and relieving *** now,nearly 200 ingredients have been characterized from EH,including flavonoids,caffeoyls,aromatic acids,coumarins,pentacyclic terpenoids,volatile oil and other *** extracts,EH related prescriptions(Dengzhan Xixin injection,Dengzhan Shengmai capsules,etc.)or compounds(scutellarin,scutellarein,etc.)possessed obvious therapeutic effects of ischemic stroke,cerebral hemorrhage,myocardial infarction,Alzheimer’s disease,diabetes and its complications,gastric cancer,bone,and joint degenerative ***,the major active compound of EH,has been used as a quality *** no obvious toxicity of EH has been *** to its traditional applications,ethnopharmacology,phytochemistry,pharmacology,and toxicity,EH was applied as a valuable herb for clinical application in food and medicine *** several compounds have been shown to possess diverse biological activities,the underlying mechanisms of their actions remain *** fully exploi

关键词： Erigeron breviscapus traditional applications ethnopharmacology phytochemistry pharmacology

A NEW CASCADING FAILURE MODEL WITH DELAY TIME IN CONGESTED COMPLEX 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

Journal of Systems Science and Systems Engineering 2009年第3期18卷 369-381页

作者： Jian WANG Yanheng LIU yu jiao College of Computer Science and Technology Jilin University Changchun 130012 China Key Laboratory of Symbolic Computation and Knowledge Engineering of Ministry of Education Jilin University Changchun 130012 China

Cascading failures often occur in congested complex networks. Cascading failures can be expressed as a three-phase process： generation, diffusion, and dissipation of congestion. Different from the betweenness centrality, a congestion function is proposed to represent the extent of congestion on a given node. Inspired by the restart process of a node, we introduce the concept of ＂delay time,＂ during which the overloaded node Cannot receive or forward any traffic, so an intergradation between permanent removal and nonremoval is built and the flexibility of the presented model is demonstrated. Considering the connectivity of a network before and after cascading failures is not cracked because the overloaded node are not removed from network permanently in our model, a new evaluation function of network efficiency is also proposed to measure the damage caused by cascading failures. Finally, we investigate the effects of network structure and size, delay time, processing ability, and traffic generation speed on congestion propagation. Cascading processes composed of three phases and some factors affecting cascade propagation are uncovered as well.

关键词： Complex networks cascading failures congestion effects propagation model

Efficiently Counting Affine Roots of Mixed Trigonometric Polynomial Systems

在线全文

学校读者我要写书评

暂无评论

Journal of Systems Science & Complexity 2017年第4期30卷 967-982页

作者： jiao Libin DONG Bo yu Bo School of Science Dalian University of Technology Panjin CampusPanjin 124221China School of Mathematical Sciences Dalian University of TechnologyDalian 116024China

Estimating the number of isolated roots of a polynomial system is not only a fundamental study theme in algebraic geometry but also an important subproblem of homotopy methods for solving polynomial systems. For the mixed trigonometric polynomial systems, which are more general than polynomial systems and rather frequently occur in many applications, the classical B6zout number and the multihomogeneous Bezout number are the best known upper bounds on the number of isolated roots. However, for the deficient mixed trigonometric polynomial systems, these two upper bounds are far greater than the actual number of isolated roots. The BKK bound is known as the most accurate upper bound on the number of isolated roots of a polynomial system. However, the extension of the definition of the BKK bound allowing it to treat mixed trigonometric polynomial systems is very difficult due to the existence of sine and cosine functions. In this paper, two new upper bounds on the number of isolated roots of a mixed trigonometric polynomial system are defined and the corresponding efficient algorithms for calculating them are presented. Numerical tests are also given to show the accuracy of these two definitions, and numerically prove they can provide tighter upper bounds on the number of isolated roots of a mixed trigonometric polynomial system than the existing upper bounds, and also the authors compare the computational time for calculating these two upper bounds.

关键词： BKK bound homotopy continuation method mixed trigonometric polynomial system mixed volume polynomial system upper bound.

Gene engineering in swine for agriculture

在线全文

学校读者我要写书评

暂无评论

Journal of Integrative Agriculture 2017年第12期16卷 2792-2804页

作者： WANG Yan-fang huang jiao-jiao ZHAO Jian-guo Institute of Animal Science Chinese Academy of Agricultural Sciences Beijing 100193 P.R. China Institute of Zoology Chinese Academy of Sciences Beijing 100101 P.R.China University of Chinese Academy of Sciences Beijing 100049 P.R. China

Domestic pigs are the second most important source of meat world-wide, and the genetic improvement of economic traits, such as meat production, growth, and disease resistance, is a critical point for efficient production in pigs. Through conventional breeding and selection programs in pigs, which are painstakingly slow processes, some economic traits, such as growth and backfat, have been greatly improved over the past several decades. However, the improvement of many polygenetic traits is still very slow and challenging to be improved by conventional breeding strategies. The development of reproductive knowledge and a variety of techniques, including foreign gene transfer strategies, somatic cell nuclear transfer（SCNT） and particularly, recently developed nuclease-mediated genome editing tools, has provided efficient ways to produce genetically modified（GM） pigs for the dramatic improvement of economic traits. In this review, we briefly discuss the progress of genomic markers used in pig breeding program, trace the history of genetic engineering, mainly focusing on the progress of recently developed genome editing tools, and summarize the GM pigs which have been generated to aim at the agricultural purposes. We also discuss the specific challenges facing application of gene engineering in pig breeding, and future prospects.

关键词： gene engineering genome editing pig agricultural application

在线全文

学校读者我要写书评

暂无评论

Dy对Gd磁热效应的影响

稀土 2001年第6期22卷 35-37页

作者：金培育黄焦宏刘金荣邱巨峰徐来自李如春黄继民王贵王正德张泽玉包头稀土研究院内蒙古包头014010 包头钢铁学院内蒙古包头014010

通过对 Gd及不同配比的 Gd- Dy合金的 X射线衍射分析和磁热效应 T- Δ Tad曲线测量结果的分析表明 ,Dy的添加没有改变 Gd的晶体结构 ,而使其居里温度和磁热效应发生有规律的改变。

关键词：磁制冷材料磁热效应居里温度直接测量法钆镝磁制冷技术稀土制冷剂

Embryo-Engineered Nonhuman Primate Models:Progress and Gap to Translational Medicine

在线全文

学校读者我要写书评

暂无评论

Research 2021年第1期2021卷 1627-1639页

作者： Mei huang jiao Yang Peng Li Yongchang Chen yunnan Key Laboratory of Primate Biomedical Research Institute of Primate Translational MedicineKunming University of Science and TechnologyKunming 650500China State Key Laboratory of Primate Biomedical Research Kunming 650500China

Animal models of human diseases are vital in better understanding the mechanism of pathogenesis and essential for evaluating and validating potential therapeutic *** close relatives of humans,nonhuman primates(NHPs)play an increasingly indispensable role in advancing translational medicine *** this review,we summarized the progress of NHP models generated by embryo engineering,analyzed their unique advantages in mimicking clinical patients,and discussed the remaining gap between basic research of NHP models to translational medicine.

关键词： diseases Medicine translational

Mercury removal from flue gas using nitrate as an electron acceptor in a membrane biofilm reactor

维普期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Frontiers of Environmental Science & Engineering 2022年第2期16卷 63-74页

作者： Zaishan Wei Meiru Tang Zhenshan huang Huaiyong jiao School of Environmental Science and Engineering Sun Yat-sen UniversityGuangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation TechnologyGuangzhou 510275China

Mercury(Hg^(0))is a hazardous air pollutant for its toxicity,and *** study reported that membrane biofilm reactor achieved mercury removal from flue gas using nitrate as the electron ***^(0) removal efficiency was up to 88.7%in 280 days of *** content in flue gas affected mercury redox reactions,mercury biooxidation and microbial *** biological mercury oxidation increased with the increase of oxygen concentration(2%‒17%),methylation of mercury reduced with the increase of oxygen *** dominant bacteria at oxygen concentration of 2%,6%,17%,21%were Halomonas,Anaerobacillus,Halomonas and Pseudomonas,*** addition of ferrous sulfide could immobilize Hg^(2+) effectively,and make both Hg^(2+) and MeHg transform into HgS-like substances,which could achieve the inhibition effect of methylation,and promote conversion of *** dominant bacteria changed from Halomonas to Planctopirus after FeS *** drives mercury oxidation through katE,katG,nar,nir,nor,and nos for Hg^(0) removal in flue gas.

关键词： Mercury removal Oxygen Ferrous sulfide Transformation of mercury Microbial community

Activin A receptor type 1C single nucleotide polymorphisms associated with esophageal squamous cell carcinoma risk in Chinese population

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastrointestinal Oncology 2025年第1期17卷 39-51页

作者： Si-yun Lin Hou huang Jin-Jie yu Feng Su Tian Jiang Shao-yuan Zhang Lu Lv Tao Long Hui-Wen Pan Jun-Qing Qi Qiang Zhou Wei-Feng Tang Guo-Wen Ding Li-Ming Wang Li-Jie Tan Jun Yin Department of Thoracic Surgery Zhongshan Hospital Affiliated to Fudan UniversityShanghai 200032China Shanghai Key Laboratory of Clinical Geriatric Medicine Huadong Hospital Affiliated to Fudan UniversityShanghai 200040China Department of Cardiothoracic Surgery The Affiliated People's Hospital of Jiangsu UniversityZhenjiang 212002Jiangsu ProvinceChina Department of Thoracic Surgery Sichuan Cancer Hospital&InstituteChengdu 610042Sichuan ProvinceChina Department of Cardiothoracic Surgery Nanjing Drum Tower HospitalThe Affiliated Hospital of Nanjing University Medical SchoolNanjing 210000Jiangsu ProvinceChina Department of Respiratory and Critical Care Medicine Shanghai Xuhui Central HospitalShanghai 200032China

BACKGROUND Transforming growth factor-β(TGF-β)superfamily plays an important role in tumor progression and *** A receptor type 1C(ACVR1C)is a TGF-βtype I receptor that is involved in tumorigenesis through binding to dif-ferent *** To evaluate the correlation between single nucleotide polymorphisms(SNPs)of ACVR1C and susceptibility to esophageal squamous cell carcinoma(ESCC)in Chinese Han *** In this hospital-based cohort study,1043 ESCC patients and 1143 healthy controls were *** SNPs(rs4664229,rs4556933,rs77886248,rs77263459,rs6734630)of ACVR1C were assessed by the ligation detection reaction ***-Weinberg equilibrium test,genetic model analysis,stratified analysis,linkage disequi-librium test,and haplotype analysis were *** Participants carrying ACVR1C rs4556933 GA mutant had significantly decreased risk of ESCC,and those with rs77886248 TA mutant were related with higher risk,especially in older male *** the haplotype analysis,ACVR1C Trs4664229Ars4556933Trs77886248Crs77263459Ars6734630 increased risk of ESCC,while Trs4664229Grs4556933Trs77886248Crs77263459Ars6734630 was associated with lower susceptibility to *** ACVR1C rs4556933 and rs77886248 SNPs were associated with the susceptibility to ESCC,which could provide a potential target for early diagnosis and treatment of ESCC in Chinese Han population.

关键词： Activin A receptor type 1C Single nucleotide polymorphisms Esophageal squamous cell carcinoma Genetic susceptibility Hospital-based cohort study