China's Space Computer Industry Rapidly Developing

In 1993, China Aerospace Corporation(CASC) announced that it would give priority to the development of satellites and their applications, automobiles and components, computers and their applications, and regard them as its three-pillar industries, which was "a historic and significant strategic decision" said Mr. Liu Jiyuan, the president of CASC. New and

Rapid Prototype Development Approach for Genetic Programming

Genetic Programming (GP) is an important approach to deal with complex problem analysis and modeling, and has been applied in a wide range of areas. The development of GP involves various aspects, including design of genetic operators, evolutionary controls and implementations of heuristic strategy, evaluations and other mechanisms. When designing genetic operators, it is necessary to consider the possible limitations of encoding methods of individuals. And when selecting evolutionary control strategies, it is also necessary to balance search efficiency and diversity based on representation characteristics as well as the problem itself. More importantly, all of these matters, among others, have to be implemented through tedious coding work. Therefore, GP development is both complex and time-consuming. To overcome some of these difficulties that hinder the enhancement of GP development efficiency, we explore the feasibility of mutual assistance among GP variants, and then propose a rapid GP prototyping development method based on πGrammatical Evolution (πGE). It is demonstrated through regression analysis experiments that not only is this method beneficial for the GP developers to get rid of some tedious implementations, but also enables them to concentrate on the essence of the referred problem, such as individual representation, decoding means and evaluation. Additionally, it provides new insights into the roles of individual delineations in phenotypes and semantic research of individuals.

Development of Rapidly Quenched Soft Magnetic Materials in China

The discovery of the first Fe-based ferromagnetic amorphous alloy in 1966 had made an impact on conventional magnetic materials because of its unique properties. Since then, a number of amorphous magnetic materials have been successfully developed and used in a wide variety of applications. A brief review of R & D activities on amorphous soft magnetic materials in China is given from the beginning to the present in a somewhat chronological order, followed by a brief introduction to their applications on electric and electronic industries. An analysis and a prospect of Chinese market of such amorphous materials are also presented.

STUDY ON MICROWAVE DIELECTRIC PROPERTIES OF EPOXY RESIN MIXTURES USED FOR RAPID PRODUCT DEVELOPMENT

This paper presents a preliminary study on the dielectric properties and curing of three different types of epoxy resins mixed at various stoichiometric mixture of hardener, flydust and aluminium powder under microwave energy. In this work, the curing process of thin layers of epoxy resins using microwave radiation was investigated as an alternative technique that can' be implemented to develop a new rapid product development technique. In this study it was observed that the curing time and temperature were a function of the percentage of hardener and fillers presence in the epoxy resins. Initially dielectric properties of epoxy resins with hardener were measured which was directly correlated to the curing process in order to understand the properties of cured specimen. Tensile tests were conducted on the three different types of epoxy resins with hardener and fillers. Modifying dielectric properties of the mixtures a significant decrease in curing time was observed. In order to study the microstructural changes of cured specimen the morphology of the fracture surface was carried out by using scanning electron microscopy.

Research on rapid development platform of PLC control system

In the field of industrial process control,a fast-development platform for programmable logic controller(PLC)systems is designed in order to solve two main problems of rapid development of PLC control system and programmability of controlling software.In the aspect of design,the platform is composed of hardware controlling and software monitoring and is taking industrial computer as the core.Under the Windows environment,the platform establishes the control instruction set,develops the configuration function and visual programming function of the monitoring software and it integrates PLC controller based on Visual Basic software.In order to achieve the function of data monitoring,it has realized the serial communication between computer and PLC by using RS-485 and RS-232 serial ports line communication.The platform designs the intelligent instruction scheduling strategy by studying the encoding and decoding rules of the communication instruction set.It proposes a method for rapidly developing control programs by adopting the expert control mode,which enables clients to develop and modify programs conveniently by importing instructions in a non-coded manner.After experimental testing,the platform is proved successful achieving both the rapid development of PLC control system and the rapid modification of monitoring software.

A Comparative Analysis of RAD and Agile Technique for Management of Computing Graduation Projects

Computing students face the problem with time and quality of the work while managing their graduation/senior projects.Rapid Application Development(RAD)model is based on continual user involvement for the process of requirement gathering via prototyping.After each iteration,the developers can validate the requirements that are completed in the iteration.Managing a project with RAD is easier but not flexible.On the other hand,Agile project management techniques focus on flexibility,agility,teamwork and quality based on user stories.Continual user involvement is avoided,which requires extensive maintenance time for fixing iteration and release of the story points.This also makes it necessary to provide onsite training to the users of the application.This research provides the pros and cons of RAD and Agile project management techniques,to help students in deciding the best approach for managing their graduation projects.For the evaluation of these techniques,similar case studies were given to the senior project students(having similar CGPAs)for building similar functionality-based applications.The two projects“Life Organizer”developed and managed using RAD and“Smart Patient Assistant(SPA)”developed and managed through Agile methodology were evaluated against the quality assurance criteria for senior projects.The study found that the project developed with RAD methodology performed 13.33%better in providing extensive and elaborated documentation than the students following the Agile technique.On the other hand,SPA-Agile based project,due to teamwork had 2.5%better implementation than Life Organizer-RAD based project.

Integrated Product and Process Design Using a Reverse Engineering System

Computer-integrated manufacturing (CIM) and revers e engineering (RE) have changed drastically the concept of product re-design, pla nning and manufacture of components. However, the main problems currently facing the developers of reverse engineering system, is the time consuming digitis ation of 3D data and the conversion of large amounts of data into a concise and manageable format and linking it to a CAD/CAM system. Automated 3-D profile gen eration, measurements and inspection of manufactured component represents one of the important functions in reverse engineering and in the improvements in produ ct quality in rapid product developments. The paper presents a novel methodology for the development of a reverse enginee ring technique for use in the rapid product development in a CIM environment . The system developed provides integration, data capture and manipulation, dat a transfer between a CAD, CAM, Computer-aided inspection (CAI) and a 3-D profi le scanning system. An efficient scanning strategy has been developed for scann ing and surfaces data acquisition. The products were scanned using a laser scann ing system with a dedicated scan control card and the associated software packag es. A versatile rig was developed for the ease of data gathering of the profile scanning process. The surface data collected was then used to build a mathematic al surface model, which was then used to develop a virtual 3-D model of the pro duct. The resulting surface model provides the geometrical input to the subseque nt machining operation using either a CNC system or other manufacturing operatio n e.g. dies casting/mould casting etc. The prototypes developed were inspected u sing a state-of-the art CNC-CMM that was integrated to the CAD/CAM system. Si nce the scanning/digitised data captured by laser scanning probes requires no ma nual editing, significant time saving over most non-contact probe systems was a chieved. Since the creation of an accurate CAD model of a redesigned component o r a prototype constitute a major element of the total turnaround time; maximum r eturn can be achieved by increasing the efficiency of the redesigning process. T he paper also outlines with a case study the application of the developed system . The system developed offers the flexibility of using the concept of reverse en gineering of a variety of components with the complimentary facility of integrat ion between CAD/CAM Computer-aided Inspection (CAI) systems and a scanning syst em. The developed reverse engineering application in an integrated manufacturing system can increase the consistency, improve cost-efficiency, reduce produ ct turn around and skill levels required to redesign, reengineer and prototyping components and products.

Rapid Development of "Chauffeur-driven Car-on-demand Service" in China

The rise of 'Chauffeur-driven Car-on-demand Service' is a concrete manifestation of Internet+transportation.'CCS' is short for 'Chauffeurdriven Car-on-demand Service'.It shows the adjustment of resources,rematch of supply and demand through the Internet,which optimize the use of social idle resources.Traditionally,match of taxi supply and demand is random under the pattern of roadside recruit wave.

The Study of Urban Planning Decision-Making in the Background of Rapid Economic Development —— A Case Study of Shanwei City

Urban planning decision-making is an activity for the decision-makers to collect information, judge function of cities, select project and make policy which is ainaed at the problem of urban planning that have taken place, is taking place and will take place. Using historical review and comparative analysis, the articles summarizes planning decision-makings of Shanwei city and it＇s problem, and makes some suggestions to urban planning decision-making system of Shanwei city in the new period.

Rapid Development of Shenzhen's Clock and Watch Industry

Ten years ago there was no clock and watch industry in Shenzhen. But now there are 500 clock and watch enterprises with an annual output of 250 million watches, occupying one quarter of the world total, and 50 million clocks. The total production value is RMB4.7 billion, excluding the value processed with customers’ own materials. Thequartz watches of the Feiyada, Tianba, Haiba, Lanbaoshi, Shiyunda and Bawang brands produced in Shenzhen sell well in Beijing, Shanghai and Tianjin.

The Rapid Development of the Cause of Human Rights in China

As early as in 2002, the China Society for Human Rights Studies and the China Foundationfor Human Rights Development co-sponsored an international symposium titled ＂Oriental Culture and Human Rights Development,＂ marking an important milestone for the human rights organizations of China to confidently open themselves to the world and voluntarily perform mul- tilateral cooperation. In the past tenyears, the exchanges and cooperation in human rights between China and other countries in the world have been increasingly extended and deepened, and the world human rights cause has increasingly shown a positive trend of close contact, mutual dependence and collective development for all countries.

Rapid development methodology of agricultural robot navigation system working in GNSS-denied environment

Robotic autonomous operating systems in global n40avigation satellite system(GNSS)-denied agricultural environments(green houses,feeding farms,and under canopy)have recently become a research hotspot.3D light detection and ranging(LiDAR)locates the robot depending on environment and has become a popular perception sensor to navigate agricultural robots.A rapid development methodology of a 3D LiDAR-based navigation system for agricultural robots is proposed in this study,which includes:(i)individual plant clustering and its location estimation method(improved Euclidean clustering algorithm);(ii)robot path planning and tracking control method(Lyapunov direct method);(iii)construction of a robot-LiDAR-plant unified virtual simulation environment(combination use of Gazebo and SolidWorks);and(vi)evaluating the accuracy of the navigation system(triple evaluation:virtual simulation test,physical simulation test,and field test).Applying the proposed methodology,a navigation system for a grape field operation robot has been developed.The virtual simulation test,physical simulation test with GNSS as ground truth,and field test with path tracer showed that the robot could travel along the planned path quickly and smoothly.The maximum and mean absolute errors of path tracking are 2.72 cm,1.02 cm;3.12 cm,1.31 cm,respectively,which meet the accuracy requirements of field operations,establishing the effectiveness of the proposed methodology.The proposed methodology has good scalability and can be implemented in a wide variety of field robot,which is promising to shorten the development cycle of agricultural robot navigation system working in GNSS-denied environment.

Rapid Prototyping and Manufacturing Technology and Its Integration with CIMS

Recent developments of rapid prototyping and manufaturing (RP&M)technology are discussed. To facilitate application of RP&M technology as an enabling technology in product development and manufacturing, our center has done a series of pojects covering RP theory (modern shaping science), new RP processes and equipment,rapid tooling technology and rapid product development systems. With the STEP protocol and product modeling technology, RP&M technology can be integrated into CIMS to form a new subsystem, the free form manufacturing subsystem. The subsystem architecture is investigated in this paper.