Exact controllability of rational expectations model with multiplicative noise and input delay

This paper considers the rational expectations model with multiplicative noise and input delay,where the system dynamics rely on the conditional expectations of future states.The main contribution is to obtain a sufficient condition for the exact controllability of the rational expectations model.In particular,we derive a sufficient Gramian matrix condition and a rank condition for the delay-free case.The key is the solvability of the backward stochastic difference equations with input delay which is derived from the forward and backward stochastic system.

Practice of Perioperative Rational Use of Antibacterial Drugs Based on Drug Pathway

[Objectives]To establish a new management model for rational use of perioperative antibacterial drugs in surgical departments.[Methods]Based on evidence-based medicine,the department s drug pathway was formulated,and the new mode of rational drug use control was established by using fine pharmaceutical technology intervention,and the intervention effect was evaluated by the intensity of antibacterial drug use,per capita drug costs and the proportion of drugs.[Results]After adopting drug pathway in departments,the intensity of antibacterial drug use,per capita drug costs and the proportion of drugs decreased significantly,and the effect of rational drug use control was remarkable.[Conclusions]The drug pathway provides a new management and control mode for the rational use of perioperative antibacterial drugs in surgical departments of hospitals.Thus,it is worthy of popularization and application.

Study on Rational Irrigation for Wheat Production in Fengqiu Region:Ⅱ. A Model of Rational Irrigation forWheat and Its Evaluation

A 5-year experiment on water balance was conducted in a flat rainfed wheat field with an area of 66 m×100 m in Fengqiu, Henan Province, China. Based on the results of the 5-consecutive-year experiments,a reasonable irrigation model for wheat cultivation is suggested according to the principle of maintaining balance of the water resources. The irrigation program was designed by simulating the ideal soil moisture regimes during a wheat season. As far as the actual soil moisture was concerned, its deyiation from the ideal soil moisture was kept within 150 mm. If this model was put into practice, a grain yield of 5 250 kg ha-1 could be expected under optimal fertilization. Compared with the traditional irrigstion scheme, the suggested model saved irrigation water by 18%.

An osculatory rational interpolation method of model reduction in linear system

A theorem for osculatory rational interpolation was shown to establish a new criterion of interpolation. On the basis of this conclusion a practical algorithm was presented to get a reduction model of the linear systems. Some numerical examples were given to explain the result in this paper.

Systematic rationalization approach for multivariate correlated alarms based on interpretive structural modeling and Likert scale

Alarm flood is one of the main problems in the alarm systems of industrial process. Alarm root-cause analysis and alarm prioritization are good for alarm flood reduction. This paper proposes a systematic rationalization method for multivariate correlated alarms to realize the root cause analysis and alarm prioritization. An information fusion based interpretive structural model is constructed according to the data-driven partial correlation coefficient calculation and process knowledge modification. This hierarchical multi-layer model is helpful in abnormality propagation path identification and root-cause analysis. Revised Likert scale method is adopted to determine the alarm priority and reduce the blindness of alarm handling. As a case study, the Tennessee Eastman process is utilized to show the effectiveness and validity of proposed approach. Alarm system performance comparison shows that our rationalization methodology can reduce the alarm flood to some extent and improve the performance.

The Rational Man Model in Social and Political Studies： A Plea for Relevance

This paper examines the assumptions of the Rational Man （RM） model familiar in social and political studies. It is observed that the model is too restrictive in its explaining events and behavior in social and political situations. It is suggested that the assumptions of RM model should be relaxed using the familiar methods and techniques of elementary formal logic. The concept of relevance is then introduced to take account of a ＂weaker＂ formal requirement in an attempt to explain events and processes in human action and/or behavior. The concept of ＂justification by reasons＂ is then introduced as a necessary though not sufficient requirement of explaining events and processes in social and political studies

Rational SU(N) Gaudin Model

We propose the eigenstates and eigenvalues of Hamiltonians of the rational SU(N)Gaudin model based on the quasi-classical limit of the SU(N)chain under the periodic boundary condition.Using the quantum inverse scattering method,we also obtain the eigenvalues of the generation function of the rational SU(N)Gaudin model.

Extraction of Feature Points for Non-Uniform Rational B-Splines(NURBS)-Based Modeling of Human Legs

Methods of digital human modeling have been developed and utilized to reflect human shape features.However,most of published works focused on dynamic visualization or fashion design,instead of high-accuracy modeling,which was strongly demanded by medical or rehabilitation scenarios.Prior to a high-accuracy modeling of human legs based on non-uniform rational B-splines(NURBS),the method of extracting the required quasi-grid network of feature points for human legs is presented in this work.Given the 3 D scanned human body,the leg is firstly segmented and put in standardized position.Then re-sampling of the leg is conducted via a set of equidistant cross sections.Through analysis of leg circumferences and circumferential curvature,the characteristic sections of the leg as well as the characteristic points on the sections are then identified according to the human anatomy and shape features.The obtained collection can be arranged to form a grid of data points for knots calculation and high-accuracy shape reconstruction in future work.

An empirical study of the effects of a speaking anxiety reduction model developed from the rational emotive behavioral therapy

Thirty-two Chinese EFL learners took part in a true experiment on the effects of a Speaking Anxiety Reduction Model （SARM） developed from the Rational Emotive Behavioral Therapy （REBT）. The participants were randomly assigned to the treatment and the control group. Both groups received a pre- and post- test of their Speaking Anxiety （SA）, Speaking State Anxiety （SAstate） as well as speaking performance. Those involved in the treatment group also received a treatment with the SARM between the tests. The results showed that, with the effects of Language Achievement （LA） being controlled： （1） the SARM could significantly reduce the SA, SAstate, and increase the total number of words in Communication Units （CUs）; and （2） the effects of the SARM did not differ significantly in terms of gender.

运用UML和Rational Rose进行J2EE应用开发

J2EE已经成为一种日渐热门的企业级应用程序开发平台 ,如何利用J2EE平台尽可能快速、有效地开发和部署应用系统有着其内在的复杂性。介绍了如何运用UML和RationalRose强大的可视化建模工具来协助开发基于J2EE的应用系统的方法 。

基于Rational Rose的数据建模

文章从面向对象角度阐述如何应用Rational Rose进行数据库建模,将数据模型与对象模型相互转换以及由数据模型生成相应的数据库,在此基础上给出了具体的方法和步骤。其目的是将抽象的数据库设计理论变成具体的数据库建模方法,使数据模型与面向对象的开发更好地结合在一起,有效地缩短软件的开发周期,从而满足多种数据库应用的需求。

用Rational Rose实现连锁企业网上采购系统的建模设计

探讨了在RationalUnifiedProcess(RUP)指导下 ,用RationalRose实现连锁企业网上采购系统的面向对象建模与设计的过程 ;并结合采购的通用流程 ,建立了几种通用的网上采购模型。

基于Rational的B/S架构软件自动化测试研究

为提高B/S架构下软件测试的自动化程度与执行效率,找出B/S架构下软件系统各项指标的性能瓶颈,提出应用优秀的软件自动化测试管理工具IBM Rational系列,构建优化的自动化测试模型,并应用该模型对当前最流行B/S架构的一个系统实例进行分析与测试管理。实验结果表明了它能够迅速发现软件中存在的缺陷,显著提高了B/S架构下应用系统自动化性能测试的效率,保证了软件的质量,对B/S架构软件自动化测试技术的深入研究具有重要的借鉴意义。

使用Rational Rose实现对基于Web的应用的OO设计

本文深讨了利用 OO的开发工具以及基于 OO的开发流程完成基于 WEB的应用的流程。并提出了开发基于 WEB的应用的一种新的开发过程。最后给出了一个具体的实现。

UML和Rational Rose在企业级软件开发中的应用

根据企业级软件项目的开发实践,讨论如何将建模语言UML及建模工具RationalRose应用到从需求分析到编码的各个环节当中.用实例说明,通过对需求的深入理解使得项目开发从一开始就能按正确的分析和设计方法进行.此后,借助UML的一些成熟方法开发出可行的软件设计方案,以编写出最佳的软件实现,从而明显提升所开发软件的可扩展性、易维护性以及可重用性.

Classification of Rational Homotopy Type for 8-Cohomological Dimension Elliptic Spaces

The different methods used to classify rational homotopy types of manifolds are in general fascinating and various (see [1,7,8]). In this paper we are interested to a particular case, that of simply connected elliptic spaces, denoted X, by discussing its cohomological dimension. Here we will the discuss the case when dimH*( Χ;Q)=8 and χ(Χ)=0.

Optimization for ASP flooding based on adaptive rationalized Haar function approximation

This paper presents an adaptive rationalized Haar function approximation method to obtain the optimal injection strategy for alkali-surfactant-polymer(ASP) flooding. In this process, the non-uniform control vector parameterization is introduced to convert original problem into a multistage optimization problem, in which a new normalized time variable is adopted on the combination of the subinterval length. Then the rationalized Haar function approximation method, in which an auxiliary function is introduced to dispose path constraints, is used to transform the multistage problem into a nonlinear programming. Furthermore, an adaptive strategy proposed on the basis of errors is adopted to regulate the order of Haar function vectors. Finally, the nonlinear programming for ASP flooding is solved by sequential quadratic programming. To illustrate the performance of proposed method,the experimental comparison method and control vector parameterization(CVP) method are introduced to optimize the original problem directly. By contrastive analysis of results, the accuracy and efficiency of proposed method are confirmed.

用Rational Rose实现图书管理系统的建模设计

图书管理系统是一种面向广大读者的管理软件,通过该系统可实现图书资源的统一规范化管理。通过工作人员与计算机的结合,最大程度的减少了人力成本,实现了图书资源的电子化管理。本文主要阐述了Rational Rose的建模特点,详细展示了Rational Rose在图书管理系统中的应用与实际作用。

Estimation of the Actual Evapotranspiration by the SEBAL Method in the Irrigated Rice Perimeter of Zatta (Yamoussoukro—Côte d’Ivoire)

In this study, the SEBAL (Surface Energy Balance Algorithm for Land) model was used to map the spatio-temporal distribution of actual evapotranspiration in the Yamoussoukro department (Côte d’Ivoire). Like other regions of the country, the Yamoussoukro district is confronted with the phenomenon of evapotranspiration (ET). This is a very important component that comes into play in the water balance but also in the calculation of the water needs of agricultural crops. Consequently, its estimation is of paramount importance in research related to the rational management of water resources, particularly agricultural water. The objective of this study was to analyze the spatio-temporal distribution of actual evapotranspiration (AET) as a function of land cover and land use. The methodology used is based on the SEBAL model which uses remote sensing (Landsat 8_OLI/TIRS) and climatic data to estimate actual evapotranspiration and analyze the spatio-temporal distribution of AET. The results reveal that the AET varied from 0 to 5.44 mm/day over the period from December 2019 to February 2020 with an average value of 4.92 mm/day. The highest average values occurred for water bodies (4.90 mm/day) and flooded vegetation (4.88 mm/day) while the lowest values occurred in residential areas (2.04 mm/day). Furthermore, the results show that the difference between the SEBAL model and the FAO-Penman-Monteith method is minimal with an average RMSE of 0.36 mm/day for all the satellite images. This study demonstrates the considerable potential of remote sensing for the characterization and estimation of spatial evapotranspiration in the Zatta irrigated rice-growing area.

基于大模型的知识生产与启蒙辩证法

人们在使用大模型的过程中,会存在某种程度的幻觉,即认为大模型无所不知和无所不能。正因为这种幻觉的存在,大模型可能会从启蒙的理性变成新的启蒙神话。启蒙的意义在于保持一种开放性,而启蒙的神话就表明了这种开放性的消失。大模型的发展无疑会加剧世界的数学化。在此背景之下,权证就构成了未来数字世界的基本通货。过度的数学化也酝酿了新的工具理性危险。作为新的技术,大模型全面展示了知识与权力的关系。大模型拥有巨大的整合力,正在实现新型的知识大一统。这种弥散化的超能力会进入知识生产的各个领域,没有个体可以逃脱这种超能力的捕捉。大模型会进一步加剧知识工业化,这将导致更为严重的意识形态问题。一方面,大模型本身有其意识形态。另一方面,大模型更加深刻的意识形态会隐含在其免费模式和消费模式之中,同时想象的知识共同体最终又会服务于知识霸权。面对知识工业化的风险,应该建立知识生产的“手工绿洲”,用荒谬、隐喻和修辞来对抗理性,让人类保有通过具身体验来创造知识的能力,并且要避免同一性和绝对正确的神话。