检索结果-南通市图书馆

Adaptive optimization of agile organization of command and control resource

在线全文

学校读者我要写书评

暂无评论

Journal of Systems Engineering and Electronics 2009年第3期20卷 558-564页

作者： Yang Chunhui Liu Junxian Chen Honghui Luo Xueshan dept. of Management Naval Univ. of Engineering Wuhan 430033 P. R. China Key Lab. of C^4ISR National Univ. of Defense Technology Changsha 410073 P. R. China

Adaptive optimization is one of the means that agile organization of command and control resource （AOC2R） adapts for the dynamic battlefield environment. A math.model of the adaptive optimization of AOC2R is put forward by analyzing the interrelating concept and research. The model takes the adaptive process as a multi-stage decision making problem. The 2-phases method is presented to calculate the model, which obtains the related parameters by running the colored Petri net （CPN） model of AOC2R and then searches for the result by ant colony optimization （ACO） algorithm integrated with genetic optimization techniques. The simulation results demonstrate that the proposed algorithm greatly improves the performance of AOC2R.

关键词： command and control organization adaptive optimization of organization dynamic-window-search ant colony optimization 3-phase organizational design.

SPACELIKE SUBMANIFOLDS IN THE DE SITTER SPACE S_p^(n+p)(c) WITH CONSTANT SCALAR CURVATURE

在线全文

学校读者我要写书评

暂无评论

Applied math.matics(A Journal of Chinese Universities) 2005年第2期20卷 183-196页

作者： ZhangJianfeng dept.ofmath. ZhejiangUniv.Hangzhou310028China

Let Mn be a closed spacelike submanifold isometrically immersed in de Sitter space S^n+p _p(c).Denote by R,H and S the normalized scalar curvature,the mean curvature and the square of the length of the second fundamental form of Mn,*** R is constant and R≤c. The pinching problem on S is studied and a rigidity theorem for Mn immersed in ~S^n+p _p(c) with parallel normalized mean curvature vector field is *** n≥3, the pinching constant is the ***,the mistake of the paper “Space-like hypersurfaces in de Sitter space with constant scalar curvature”(see Manus math.1998,95:499-505) is ***,the reduction of the codimension when Mn is a complete submanifold in S^n+p _p(c) with parallel normalized mean curvature vector field is investigated.

关键词： spacelike submanifold scalar curvature parallel mean curvature vector.

在线全文

学校读者我要写书评

暂无评论

到急诊科就诊的儿科晕厥患者

世界核心医学期刊文摘（儿科学分册） 2005年第1期1卷 42-42页

作者： Massin M.M. Bourguignont A. Coremans C. 郭战宏 dept.of Pediat.and-math.InstituteUniversity of Li' ege Li' ege Belgium

目的:为了评价到西欧某一急诊科就诊的非选择性儿童晕厥的流行病学特点。研究设计:分析了在笔者急诊科见到的因晕厥事件就诊的连续的226例儿科患者的晕厥原因和检查。结果:神经心脏性晕厥和神经紊乱是最常见的诊断(分别为80%和9%),其他... 详细信息

目的:为了评价到西欧某一急诊科就诊的非选择性儿童晕厥的流行病学特点。研究设计:分析了在笔者急诊科见到的因晕厥事件就诊的连续的226例儿科患者的晕厥原因和检查。结果:神经心脏性晕厥和神经紊乱是最常见的诊断(分别为80%和9%),其他原因包括心理、心脏、呼吸、中毒和代谢异常。神经心脏性晕厥和与疾病有关的晕厥依靠病史和体检就很容易确诊或排除。有132例(58%)未进行心电图检查。大多数怀疑有神经心脏性晕厥的患者都进行了脑电图检查,其中29%的患者住院治疗。心脏异常有5例(2%),其中2例在早期被误诊。结论:在儿童期,多种原因均可引起晕厥,结果在目标导向的习惯下一个不能解决此问题的评估将是昂贵、耗时及对有关各方都是一个打击。通常情况下详细的病史和彻底的体检对指导全科医师为特定患者选择诊断性检查项目很有必要。

关键词：急诊科诊断性检查儿科患者神经紊乱全科医师住院治疗研究设计 admitted fashion referred

Polypeptide analysis for nanopore-based protein identification

在线全文

学校读者我要写书评

暂无评论

Nano Research 2022年第11期15卷 9831-9842页

作者： Mazdak Afshar Bakshloo Safia Yahiaoui Fabien Piguet Manuela Pastoriza-Gallego Régis Daniel Jérôme math. John J.Kasianowicz Abdelghani Oukhaled CY Cergy Paris Université CNRSLAMBE95000CergyFrance UniversitéParis-Saclay Univ EvryCNRSLAMBE91025Evry-CourcouronnesFrance University of South Florida Dept.of PhysicsTampaFL 33620USA Freiburg Institute for Advanced Studies Universität FreiburgFreiburg 79104Germany

Presently,proteins are identified by cleaving them with proteases,measuring the mass to charge ratio of the fragments with a mass spectrometer,and matching the fragments to segments within known proteins in *** earlier demonstrated that a nanometer-scale pore formed by aerolysin(AeL)can discriminate between,and therefore identify,three similar size proteins from their trypsin-cleaved polypeptide *** this nanopore-protease method,the protein’s identity is instead determined from characteristic ionic current blockade patterns caused by the polypeptide fragments that enter the *** results also suggested that not all of the theoretically expected cleavage products partition into the *** better understand the mechanism by which polypeptide fragments are captured,and how different polypeptides reduce the pore’s ionic current,we studied the effects of 11 identical length polypeptides with different net charges and charge *** show that under certain experimental conditions,negative,positive,and neutral polypeptides are driven into the AeL pore by the same applied voltage *** capture rate and dwell time of polypeptides in the pore depend strongly on the ionic strength,the magnitude of the applied voltage,and the net charge and charge distribution of the *** dwell time distribution depends nonmonotonically on the applied voltage(regardless of the polymer’s net charge),and its maximum value depends on the polypeptide net charge and charge *** maximum dwell time for different polypeptides does not occur at the same applied voltage amplitude,which conceivably might complicate the detection and discrimination of some polypeptide *** additional experiments,computer simulations,and artificial intelligence research are needed to better understand how to optimize the partitioning of enzymatically cleaved fragments into the AeL nanopore,the method is still capable of accurately identifying

关键词： protein identification nanopores trypsin enzymatic degradation

LAGRANGE STABILITY IN MEAN SQUARE OF STOCHASTIC REACTION DIFFUSION EQUATIONS

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

Annals of Differential Equations 2006年第3期22卷 330-332页

作者： Luo Qi (dept. of Inform, and Communication, Nanjing University of Information Science and Technology, Nanjing 210044) Bao Jundong (College, of math. Science, Inner Mongolia Normal University, Huhehaott 010022) Zhang Yutian (College of Science, Wuhan University of Sci. and Technology, Wuhan 430081) dept. of Inform. and Communication Nanjing University of Information Science and Technology Nanjing 210044

This work is devoted to the discussion of stochastic reaction diffusion equations and some new theorems on Lagrange stability in mean square of the solution are established via Lyapunov method which is nothing to be d... 详细信息

关键词： stochastic reaction diffusion equations lagrange stability mean square Lyapunov function

A Novel Multivariate Polynomial Approximation Factorization of Big Data

在线全文

学校读者我要写书评

暂无评论

国际计算机前沿大会会议论文集 2015年第1期 145-147页

作者： Guotao Luo Guang Pei dept. of Computer Sichuan TOP Vocational Inst.ChengduChina Chengdu Institute of Computer Application CAS ChengduChina

In actual engineering, processing of big data sometimes requires building of mass physical models, while processing of physical model requires relevant math.model, thus producing mass multivariate polynomials, the effective reduction of which is a difficult problem at present. A novel algorithm is proposed to achieve the approximation factorization of complex coefficient multivariate polynomial in light of characteristics of multivariate polynomials. At first, the multivariate polynomial is reduced to be the binary polynomial, then the approximation factorization of binary polynomial can produce irreducible duality factor, at last, the irreducible duality factor is restored to the irreducible multiple factor. As a unit root is cyclic, selecting the unit root as the reduced factor can ensure the coefficient does not expand in a reduction process. Chinese remainder theorem is adopted in the corresponding reduction process, which brought down the calculation complexity. The algorithm is based on approximation factorization of binary polynomial and calculation of approximation Greatest Common Divisor, GCD. The algorithm can solve the reduction of multivariate polynomials in massive math.models, which can obtain effectively null point of multivariate polynomials, providing a new approach for further analysis and explanation of physical models. The experiment result shows that the irreducible factors from this method get close to the real factors with high efficiency.

关键词： Mass physical model Multivariate polynomial approximation factorization.Reduction Unit root.Binary approximation factorization Approximation GCD algorithm