中国文化与科学分类识字

本文从汉字的文化内涵的角度,阐述了依据汉字特点形成的“科学分类识字法”,从“形”入手,以“意”为核心,把独立的汉字联系起来,组成一组组的字群和义群,是解决汉字繁复庞杂、难学难记问题的一把钥匙。从“形”入手、以“意”为核心的科学分类,可以指导学生正确理解词义;可以指导学生认字、写字,防止学生写错别字;有助于我们了解汉字的词义系统。同时增加了识字的生动性和趣味性。

Combined Gradient Representations for Generalized Birkhoffian Systems in Event Space and Its Stability Analysis

The combined gradient representations for generalized Birkhoffian systems in event space are studied.Firstly,the definitions of six kinds of combined gradient systems and corresponding differential equations are given.Secondly,the conditions under which generalized Birkhoffian systems become combined gradient systems are obtained. Finally,the characteristics of combined gradient systems are used to study the stability of generalized Birkhoffian systems in event space. Seven examples are given to illustrate the results.

Space Development with Chinese Characteristics and its Practical Significance

China＇s space industry has been developed quickly and consistently setting new records for mankind in space exploration in the past 60 years. Four principles are uphetd during its development. Systems engineering and overall thinking have played an important role in the development of China＇s space industry. What＇s more, the concept of systems engineering which originated from the space industry, being rooted in society, is a successful example of ＂Chinese theory＂ answering ＂Chinese question＂ and ＂Chinese wisdom＂ guiding ＂Chinese development＂, which is a trump card for the country and provides a unique business governance mode with Chinese characteristics.

DATABASE STRUCTURE FOR THE INTEGRATION OF RS WITH GIS BASED ON SEMANTIC NETWORK

The integration of remote sensing (RS) with geographical information system (GIS) is a hotspot in geographical information science.A good database structure is important to the integration of RS with GIS,which should be beneficial to the complete integration of RS with GIS,able to deal with the disagreement between the resolution of remote sensing images and the precision of GIS data,and also helpful to the knowledge discovery and exploitation.In this paper,the database structure storing the spatial data based on semantic network is presented.This database structure has several advantages.Firstly,the spatial data is stored as raster data with space index,so the image processing can be done directly on the GIS data that is stored hierarchically according to the distinguishing precision.Secondly,the simple objects are aggregated into complex ones.Thirdly,because we use the indexing tree to depict the relationship of aggregation and the indexing pictures expressed by 2_D strings to describe the topology structure of the objects,the concepts of surrounding and region are expressed clearly and the semantic content of the landscape can be illustrated well.All the factors that affect the recognition of the objects are depicted in the factor space,which provides a uniform mathematical frame for the fusion of the semantic and non_semantic information.Lastly,the object node,knowledge node and the indexing node are integrated into one node.This feature enhances the ability of system in knowledge expressing,intelligent inference and association.The application shows that this database structure can benefit the interpretation of remote sensing image with the information of GIS.

Generalized Synchronization of Time-Delayed Discrete Systems

This paper establishes two theorems for two time-delayed （chaotic） discrete systems to achieve timedelayed generalized synchronization （TDGS）. These two theorems uncover the genera/forms of two TDGS systems via a prescribed transformation. As examples, we convert the Lorenz three-dimensional chaotic map to an equal time-delayed system as the driving system, and construct the TDGS driven systems according to the Theorems 1 and 2. Numerical simulations demonstrate the effectiveness of the proposed theorems.

On a Quasilinear Hyperbolic System Relative to an Atmospheric Model on the Transition of Water Defined on the Whole Space

In this paper we study a quasi-linear hyperbolic system, with some integral operators, arising from an atmospheric model on the transition of water. By using the method of characteristics and a fixed point argument, we prove a theorem of existence, uniqueness and continuous dependence on data, in Lipschitz class, of the solution to this problem.

Redefining/Reconstructing the ＂In-between＂： An Urban Transformation Scenario for the Haydarpasa Harbour, Istanbul

Istanbul as a ＂third world＂ metropolis is a dynamic open system, where complex and multiple economical, social and physical conditions are overlapped. Still the city is a focus point of social （economical, cultural, and ethnical） and spatial dualisms and their genuine contradictions--polarizations particularly in the last 30 years. Istanbul＇s natural characteristics such as geographical conditions （slope topography and the physical relationship with the sea）, and also the artificial urban properties that include the historical architectural monuments, the industrial heritage, the contemporary urban transformation applications, the harbours and docklands as borderlines or in-between zones also identify this fragmented, hybrid, and divided urban structure. The Haydarpasa Harbour as an artificial urban borderline between the ruined and peak zones lJskudar and Kadikoy on the Asian side of the city is a kind of representative in-between area, an isolate city in city, which triggers the social and physical collage and ＂deconstructs＂ the development process of lstanbul＇s morphology. This paper aims to analyze these social and spatial aspects, which endure urban polarization in Istanbul. The underlying reasons of these contradictions and eventual outcome of the peak and the ruined zones in lstanbul and their border districts typologies will be analyzed. This paper will also make a compared evaluation of Haydarpasa Harbour （intersection point of two adjacent districts in Istanbul） and the completed urban design transformation projects/scenarios on the harbor area regarding the creation of a sustainable urban development for the city by enabling a new productive public space in-between [Jskudar （＂ruined＂ zone） and Kadikoy （＂peak＂ zone） in Istanbul.

The Cauchy problem of generalized Landau-Lifshitz equation into S^n

In this paper,we study the Cauchy problem of an integrable evolution system,i.e.,the n-dimensional generalization of third-order symmetry of the well-known Landau-Lifshitz equation.By rewriting this equation in a geometric form and applying the geometric energy method with a forth-order perturbation,we show the global well-posedness of the Cauchy problem in suitable Sobolev spaces.

Method of Generating Strategic Guidance Information for Driving Evacuation Flows to Approach Safety-Based System Optimal Dynamic Flows: Case Study of a Large Stadium

In previous evacuation flow planning, a system optimal dynamic traffic assignment(SODTA) did not consider the exogenous costs caused by potential traffic accidents. A traffic accident,which might occur as a result of traffic congestion, will impact an evacuation process because of accidentrelated delays experienced by the downstream vehicles. This paper establishes a safety-based SO-DTA linear programming model in which the generalized system cost incorporates both the travel time and the accident-related delay. The goal is to minimize the generalized system cost under the cell transmission setup. Furthermore, the authors provide strategic guidance information that considers both the objective of the decision maker and the route choice behavior of the evacuees. Mathematically,the authors propose an unconstrained non-linear programming model aimed at minimizing the gap between the safety-based flows and the stochastic real-world evacuation flows, to provide strategic travel time information to be published on variable message signs(VMS). In the case study, the authors found that the safety-based SO-DTA model can reduce congestion and improve the evacuation efficiency; the stochastic real-world evacuation flows, guided by strategic information, can approach the safety-based flows.

New Results on System of Generalized Quasi-Ky Fan Inequalities with Set-Valued Mappings in Topological Semilattice Spaces

Under new assumptions,this paper obtains some extended versions of Ky Fan type inequality for a family of C-continuous set-valued mappings in the setting of topological semilattices.The obtained results are new and different from the corresponding known results in the literature.Some special cases of the main result are also discussed.Some examples are given to illustrate the results.