Development and Application of CAD Technology in Railway Vehicle Studying

2014 ◽  
Vol 1037 ◽  
pp. 468-473
Author(s):  
Xu Xu Wang ◽  
Guang Zhong Hu ◽  
Shou Ne Xiao ◽  
Yong Ming Tang
Keyword(s):  
Data Management ◽  
Design Method ◽  
Digital Design ◽  
Current Status ◽  
Railway Vehicle ◽  
Rail Vehicle ◽  
Parametric Data ◽  
Visualization Technology ◽  
Organic Combination ◽  
And Control

The emergence and development of CAD technology, and its development and current status of applied research on rail vehicle in our country is introduced. For four key technologies of CAD on digital design direction of rail vehicles, which are integrated, modular, parametric, data management and control, is discussed detailed. What’s more, the direction of rail vehicle design is referred to, which introduces new innovation of TRIZ, universal design and reconfigurable design in theory, changes reverse engineering to top-down design in the design method, realizes the organic combination of modular and integrated in design platform development, and accelerates basic technology research which contains unstructured data processing technology, non-relational database management technology and visualization technology in data management .

Digital Design of Automotive Wire-Harness

2013 ◽  
Vol 397-400 ◽  
pp. 882-888
Author(s):  
Yong Liu ◽  
Sheng Rui Yuan ◽  
Na Zhou ◽  
Xun Yi Dang
Keyword(s):  
Data Management ◽  
Design Method ◽  
Design Methods ◽  
Digital Design ◽  
Interaction Data ◽  
3D Interaction ◽  
3D Design ◽  
Wire Harness ◽  
Existing Problems ◽  
Schematic Layout

In allusion to the current existing problems of automotive wire-harness design, which are no interaction between 2D design and 3D design, and disconnect between design level and simulation level, the advanced design methods are needed. In this paper, it puts forward a kind of automotive wire-harness design method based on CHS and PRO/E software. Then it details its design steps including schematic / layout / harness design, 3D interaction, data management, etc. Finally, it summarizes the advantages of this advanced design method.

The Application of Digital Technology in the International Design Competition of Large Sports Center

2014 ◽  
Vol 507 ◽  
pp. 47-52
Author(s):  
Shi Liang Lu ◽  
Shao Peng Wang ◽  
Xiao Lei Shi
Keyword(s):  
Digital Technology ◽  
Design Method ◽  
The Body ◽  
Digital Design ◽  
Digital Manufacturing ◽  
Design Competition ◽  
Design Innovation ◽  
And Control ◽  
Design Ideas ◽  
International Events

With the constant development of digital technology nowadays, architectural creation is undergoing great changes on design ideas and realization methods. With the international events held recent years, there comes more and more international design competition on large sports center, in which digital technology has become a major boost of design innovation. Meanwhile, digital design method has achieved a change from media reproduction to the body resulting. Based on the analysis of typical examples of large sports center design using digital technology, this paper makes a deep study of the application of digital technology in the international design competition of large sports center through digitized form, digital manufacturing and control processing.

Portable Life Support System: Current Status and Future Perspectives

2020 ◽  
Vol 14 (1) ◽  
pp. 12-28
Author(s):  
Jingang Jiang ◽  
Yihao Chen ◽  
Xuefeng Ma ◽  
Yongde Zhang ◽  
Zhiyuan Huang ◽  
...  
Keyword(s):  
Support System ◽  
Life Support ◽  
Support Systems ◽  
Vital Signs ◽  
Current Status ◽  
Life Support System ◽  
Life Support Systems ◽  
Special Circumstances ◽  
And Control ◽  
Further Development

Background: Portable life support system is used in the battlefield, disaster and in other special circumstances such as in space exploration, and underground survey to give the wounded a life support. The most dangerous period for the injured is the first hour after an injury, which is a crucial time for treatment. If the patient's vital signs were stabilized, more than 40% of the injured could be saved. The staff can efficiently complete the task if they get effective and stable vital signs during the operation. Therefore, in order to reduce the risk of disaster and battlefield mortality to improve operational safety and efficiency, it is necessary to study the portable life support system. Objective: The study aimed to provide an overview of recent portable life support system and its characteristics and design. Methods: This paper introduces the patents and products related to a portable life support system, and its characteristics and application. Results: This paper summarizes five kinds of portable life support systems which are box type, stretcher type, bed type, backpack type and mobile type. Moreover, the characteristics of different portable life support systems are analyzed. The paper expounds the problems of different types of portable life support systems and puts forward improvement methods to solve the problems. Finally, the paper points out the future development of the system. Conclusion: Portable life support system plays an increasingly important role in health care. In terms of the structure, function and control, further development and improvements are needed, along with the research on portable life support system.

scholarly journals Membrane condenser as emerging technology for water recovery and gas pre-treatment: current status and perspectives

2019 ◽  
Vol 1 (1) ◽  
Author(s):  
Adele Brunetti ◽  
Francesca Macedonio ◽  
Giuseppe Barbieri ◽  
Enrico Drioli
Keyword(s):  
Current Status ◽  
Innovative Technology ◽  
Water Recovery ◽  
Treatment Unit ◽  
Treatment Stage ◽  
Treatment Technologies ◽  
Pre Treatment ◽  
And Control

Abstract The recent roadmap of SPIRE initiative includes the development of “new separation, extraction and pre-treatment technologies” as one of the “key actions” for boosting sustainability, enhancing the availability and quality of existing resources. Membrane condenser is an innovative technology that was recently investigated for the recovery of water vapor for waste gaseous streams, such as flue gas, biogas, cooling tower plumes, etc. Recently, it has been also proposed as pre-treatment unit for the reduction and control of contaminants in waste gaseous streams (SOx and NOx, VOCs, H2S, NH3, siloxanes, halides, particulates, organic pollutants). This perspective article reports recent progresses in the applications of the membrane condenser in the treatment of various gaseous streams for water recovery and contaminant control. After an overview of the operating principle, the membranes used, and the main results achieved, the work also proposes the role of this technology as pre-treatment stage to other separation technologies. The potentialities of the technology are also discussed aspiring to pave the way towards the development of an innovative technology where membrane condenser can cover a key role in redesigning the whole upgrading process.

Current status, problems and control strategies of water resources pollution in China

Water Policy ◽  
2014 ◽  
Vol 17 (3) ◽  
pp. 423-440 ◽  
Author(s):  
Lei Wu ◽  
Tong Qi ◽  
Dan Li ◽  
Huijuan Yang ◽  
Guoqing Liu ◽  
...  
Keyword(s):  
Water Pollution ◽  
Control Strategies ◽  
Water Environment ◽  
Underground Water ◽  
National Standard ◽  
Current Status ◽  
Food Borne ◽  
Major River ◽  
And Control ◽  
Research And Policy

The surface water of 10 major river systems across China has been under intermediate pollution with striking eutrophication problems in major lakes (reservoirs). More data from the Ministry of Environmental Protection of China showed that underground water in 57% of monitoring sites across Chinese cities was polluted or extremely polluted. Rural water pollution, the rising number of incidents of industrial pollution, outdated sewerage systems, and the overuse of pesticides and chemical fertilizers also endanger the health of rural inhabitants in China. Nearly 0.2 billion rural residents could not use drinking water in accordance with the national standard, and there were reports of ‘cancer villages' and food-borne diseases (cancer village refers to a village where a certain proportion of its inhabitants suffer from the same kind of cancer or where there is a hike in cancer incidence in that area). This study aims to raise awareness of the prevention and control of water pollution and to propose a set of national research and policy initiatives for the future safety of the water environment in China.

scholarly journals Method for designing multi-input system identification signals using a compact time-frequency representation

2021 ◽  
Author(s):  
Mathias Stefan Roeser ◽  
Nicolas Fezans
Keyword(s):  
System Identification ◽  
Design Method ◽  
Flight Test ◽  
Compact Representation ◽  
Time Frequency ◽  
Stability And Control ◽  
Frequency Representation ◽  
Aerodynamic Parameters ◽  
Definition Of ◽  
And Control

AbstractA flight test campaign for system identification is a costly and time-consuming task. Models derived from wind tunnel experiments and CFD calculations must be validated and/or updated with flight data to match the real aircraft stability and control characteristics. Classical maneuvers for system identification are mostly one-surface-at-a-time inputs and need to be performed several times at each flight condition. Various methods for defining very rich multi-axis maneuvers, for instance based on multisine/sum of sines signals, already exist. A new design method based on the wavelet transform allowing the definition of multi-axis inputs in the time-frequency domain has been developed. The compact representation chosen allows the user to define fairly complex maneuvers with very few parameters. This method is demonstrated using simulated flight test data from a high-quality Airbus A320 dynamic model. System identification is then performed with this data, and the results show that aerodynamic parameters can still be accurately estimated from these fairly simple multi-axis maneuvers.

scholarly journals Leishmaniasis: Current Status of Vaccine Development

2001 ◽  
Vol 14 (2) ◽  
pp. 229-243 ◽  
Author(s):  
Emanuela Handman
Keyword(s):  
Dna Sequences ◽  
Vaccine Development ◽  
Development Program ◽  
Skin Lesions ◽  
Mononuclear Phagocytes ◽  
Control Measures ◽  
Host Susceptibility ◽  
Current Status ◽  
Dna Encoding ◽  
And Control

SUMMARY Leishmaniae are obligatory intracellular protozoa in mononuclear phagocytes. They cause a spectrum of diseases, ranging in severity from spontaneously healing skin lesions to fatal visceral disease. Worldwide, there are 2 million new cases each year and 1/10 of the world's population is at risk of infection. To date, there are no vaccines against leishmaniasis and control measures rely on chemotherapy to alleviate disease and on vector control to reduce transmission. However, a major vaccine development program aimed initially at cutaneous leishmaniasis is under way. Studies in animal models and humans are evaluating the potential of genetically modified live attenuated vaccines, as well as a variety of recombinant antigens or the DNA encoding them. The program also focuses on new adjuvants, including cytokines, and delivery systems to target the T helper type 1 immune responses required for the elimination of this intracellular organism. The availability, in the near future, of the DNA sequences of the human and Leishmania genomes will extend the vaccine program. New vaccine candidates such as parasite virulence factors will be identified. Host susceptibility genes will be mapped to allow the vaccine to be targeted to the population most in need of protection.

Implementation of Wide-Area and Interconnected FPGA of Embedded Devices

2014 ◽  
Vol 687-691 ◽  
pp. 3102-3105
Author(s):  
Qin Zhang
Keyword(s):  
Design Method ◽  
Functional Module ◽  
Logic Device ◽  
Industrial Control ◽  
Embedded Internet ◽  
Programmable Device ◽  
The Difference ◽  
Development Tendency ◽  
And Control ◽  
Measurement And Control

Integration with Internet is the development tendency of industrial control network, and embedded Internet technique is the key of implementation. By analyzing field bus Technology and combining actual demand, the paper proposes dial-up high-density programmable logic device solution of remote embedded measurement and control equipment. For the purpose of implementing reuse of design modules and upgrading requirement, the paper systematically expounds top-down hierarchy design method for implementing functional module division. According to the difference of implementation complexity because of the difference of functions, the paper finally analyzes the characteristics and applications of programmable device, and proposes the improvement direction.

Swine influenza vaccines: current status and future perspectives

2010 ◽  
Vol 11 (1) ◽  
pp. 81-96 ◽  
Author(s):  
Wenjun Ma ◽  
Jürgen A. Richt
Keyword(s):  
Influenza A ◽  
Swine Influenza ◽  
Influenza Viruses ◽  
Current Status ◽  
Economic Losses ◽  
Influenza A Viruses ◽  
Swine Industry ◽  
Effective Strategies ◽  
Swine Disease ◽  
And Control

AbstractSwine influenza is an important contagious disease in pigs caused by influenza A viruses. Although only three subtypes of influenza A viruses, H1N1, H1N2 and H3N2, predominantly infect pigs worldwide, it is still a big challenge for vaccine manufacturers to produce efficacious vaccines for the prevention and control of swine influenza. Swine influenza viruses not only cause significant economic losses for the swine industry, but are also important zoonotic pathogens. Vaccination is still one of the most important and effective strategies to prevent and control influenza for both the animal and human population. In this review, we will discuss the current status of swine influenza worldwide as well as current and future options to control this economically important swine disease.

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