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Global influenza surveillancewith Laplacianmultidimensional scaling
Xi-chuan ZHOU,Fang TANG,Qin LI,Sheng-dong HU,Guo-jun LI,Yun-jian JIA,Xin-ke LI,Yu-jie FENG
《信息与电子工程前沿(英文)》 2016年 第17卷 第5期 页码 413-421 doi: 10.1631/FITEE.1500356
Baicheng HUANG, Kegong TIAN
《农业科学与工程前沿(英文)》 2020年 第7卷 第2期 页码 218-226 doi: 10.15302/J-FASE-2020324
Emergent coronaviruses (CoVs) such as SARS-CoV and MERS-CoV have posed great threats to public health worldwide over the past two decades. Currently, the emergence of SARS-CoV-2 as a pandemic causes greater public health concern. CoV diversity is due to the large size and replication mechanisms of the genomes together with having bats as their optimum natural hosts. The ecological behavior and unique immune characteristics of bats are optimal for the homologous recombination of CoVs. The relationship of spatial structural characteristics of the spike protein, a protein that is critical for recognition by host receptors, in different CoVs may provide evidence in explaining the coevolution of CoVs and their hosts. This information may help to enhance our understanding of CoV evolution and thus provide part of the basis of preparations for any future outbreaks.
关键词: bat coronavirus evolution host receptor spike protein transmission
Integrated transmission and generation planning model in a deregulated environment
Enrique B. CEDE?O, Sant ARORA
《能源前沿(英文)》 2013年 第7卷 第2期 页码 182-190 doi: 10.1007/s11708-013-0256-8
关键词: integrated planning indicative plans power generation transmission deregulation
Industrial eco-efficiency and its spatial-temporal differentiation in China
Wei YANG, Fengjun JIN, Chengjin WANG, Chen LV
《环境科学与工程前沿(英文)》 2012年 第6卷 第4期 页码 559-568 doi: 10.1007/s11783-012-0400-4
关键词: industrial eco-efficiency data envelopment analysis (DEA) model exploratory spatial data analysis (ESDA)
Smart model for accurate estimation of solar radiation
Lazhar ACHOUR, Malek BOUHARKAT, Ouarda ASSAS, Omar BEHAR
《能源前沿(英文)》 2020年 第14卷 第2期 页码 383-399 doi: 10.1007/s11708-017-0505-3
关键词: global solar radiation statistical indicator hybrid model spatial database correlation coefficients
李成名
《中国工程科学》 2013年 第15卷 第5期 页码 37-41
本文首先提出了面条模型的概念,进而指出基于面条模型的图形处理系统如果不具备动态生成空间关系的能力,就会退化为简单的地理数据库,提出了面条模型中动态推断空间关系的基于Voronoi图的四邻近数学模型(4-adj模型),给出了唯一、完备的推断规则,并指出其优点和不足。
A comprehensive analysis of a 3-P (Pa) S spatial parallel manipulator
Yuzhe LIU,Liping WANG,Jun WU,Jinsong WANG
《机械工程前沿(英文)》 2015年 第10卷 第1期 页码 7-19 doi: 10.1007/s11465-015-0324-3
In this paper, a novel 3-degree of freedom (3-DOF) spatial parallel kinematic machine (PKM) is analyzed. The manipulator owns three main motions (two rotations and one translation) and three concomitant motions (one rotation and two translations). At first, the structure of this spatial PKM is simplified according to the characteristic of each limb. Secondly, the kinematics model of this spatial PKM is set up. In addition, the relationship between the main motions and concomitant motions is studied. The workspaces respectively based on the outputs and inputs are derived and analyzed. Furthermore, the velocity model is put forward. Two indexes based on the velocity model are employed to investigate the performance of this spatial PKM. At last, the output error model can be obtained and simulated. The comprehensive kinematics analysis in this paper is greatly useful for the future applications of this spatial PKM.
关键词: parallel mechanism concomitant motions kinematics workspaces error model
Choosing configurations of transmission line tower grounding by back flashover probability value
Dmitry KUKLIN
《能源前沿(英文)》 2016年 第10卷 第2期 页码 213-226 doi: 10.1007/s11708-016-0398-6
关键词: grounding transmission line tower back flashover probability FDTD method
Availability growth models and verification of power equipment
Jinyuan SHI, Jiamin XU
《能源前沿(英文)》 2021年 第15卷 第2期 页码 529-538 doi: 10.1007/s11708-019-0624-0
关键词: repairable system power equipment electric generating unit power station auxiliary transmission and distribution installation reliability availability availability growth model
null
《医学前沿(英文)》 2018年 第12卷 第1期 页码 76-83 doi: 10.1007/s11684-017-0609-5
Tuberculosis (TB) has remained an ongoing concern in China. The national scale-up of the Directly Observed Treatment, Short Course (DOTS) program has accelerated the fight against TB in China. Nevertheless, many challenges still remain, including the spread of drug-resistant strains, high disease burden in rural areas, and enormous rural-to-urban migrations. Whether incident active TB represents recent transmission or endogenous reactivation has helped to prioritize the strategies for TB control. Evidence from molecular epidemiology studies has delineated the recent transmission of ( ) strains in many settings. However, the transmission patterns of TB in most areas of China are still not clear. Studies carried out to date could not capture the real burden of recent transmission of the disease in China because of the retrospective study design, incomplete sampling, and use of low-resolution genotyping methods. We reviewed the implementations of molecular epidemiology of TB in China, the estimated disease burden due to recent transmission of strains, the primary transmission of drug-resistant TB, and the evaluation of a feasible genotyping method of strains in circulation.
关键词: tuberculosis recent transmission molecular epidemiology China
林迪,沙学军,吴宣利,张乃通
《中国工程科学》 2009年 第11卷 第2期 页码 75-81
为分析多径环境下脉冲超宽带跳时多址系统的传输性能,通过研究IEEE802.4.53a工作组给出的多 径信道参考模型,提出了一个同时存在符号间干扰、符号内多径干扰和多用户干扰的跳时超宽带系统相干解 调的性能分析模型,分别得到了符号内多径干扰、符号间干扰和多用户干扰的方差,且推导得到了系统的误 比特率计算公式,并用计算机仿真验证了公式的有效性。通过计算相邻多径的平均间隔,论证了符号内脉冲 自身多径的干扰是不可忽略的。在不同的信道环境下,以一定误码率要求作为衡量标准,比较了单用户系统 中仅考虑符号间干扰和同时考虑符号内多径干扰及符号间干扰的用户最高传输速率,并分析了多用户系统 中接入不同用户数时对应的平均传输速率的上限。
Antibiotic resistome mostly relates to bacterial taxonomy along a suburban transmission chain
《环境科学与工程前沿(英文)》 2022年 第16卷 第3期 doi: 10.1007/s11783-021-1466-7
• The α-diversities of resistome were lower in manure and compost than in soils.
关键词: Antibiotic resistance genes Resistome Bacterial taxonomy Transmission chain
Soil spatial variability impact on the behavior of a reinforced earth wall
Adam HAMROUNI, Daniel DIAS, Badreddine SBARTAI
《结构与土木工程前沿(英文)》 2020年 第14卷 第2期 页码 518-531 doi: 10.1007/s11709-020-0611-x
关键词: reinforced earth wall geosynthetic random field spatial variability Monte Carlo simulation
Border-search and jump reduction method for size optimization of spatial truss structures
Babak DIZANGIAN, Mohammad Reza GHASEMI
《结构与土木工程前沿(英文)》 2019年 第13卷 第1期 页码 123-134 doi: 10.1007/s11709-018-0478-2
关键词: optimum design sensitivity analysis reduction method spatial trusses OpenSees
标题 作者 时间 类型 操作
Global influenza surveillancewith Laplacianmultidimensional scaling
Xi-chuan ZHOU,Fang TANG,Qin LI,Sheng-dong HU,Guo-jun LI,Yun-jian JIA,Xin-ke LI,Yu-jie FENG
期刊论文
Interspecies transmission and evolution of the emerging coronaviruses: perspectives from bat physiologyand protein spatial structure
Baicheng HUANG, Kegong TIAN
期刊论文
Integrated transmission and generation planning model in a deregulated environment
Enrique B. CEDE?O, Sant ARORA
期刊论文
Industrial eco-efficiency and its spatial-temporal differentiation in China
Wei YANG, Fengjun JIN, Chengjin WANG, Chen LV
期刊论文
Smart model for accurate estimation of solar radiation
Lazhar ACHOUR, Malek BOUHARKAT, Ouarda ASSAS, Omar BEHAR
期刊论文
A comprehensive analysis of a 3-P (Pa) S spatial parallel manipulator
Yuzhe LIU,Liping WANG,Jun WU,Jinsong WANG
期刊论文
Choosing configurations of transmission line tower grounding by back flashover probability value
Dmitry KUKLIN
期刊论文
Recent transmission of Mycobacterium tuberculosis in China: the implication of molecular epidemiology
null
期刊论文
Soil spatial variability impact on the behavior of a reinforced earth wall
Adam HAMROUNI, Daniel DIAS, Badreddine SBARTAI
期刊论文