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It has a high safety and practicality.
Because of interacting simplicity, the data traffic quantity is not much.
It has a high safety and practicality.
[2] Gustaw Mazurek,Active RFID System With Spread-Spectrum Transmission,IEEE TRANSACTIONS ON AUTOMATION SCIENCE AND ENGINEERING, VOL. 6, NO. 1, JANUARY 2009 [3] Carlo Mutti,CDMA-based RFID Systems in Dense Scenarios: Concepts and Challenges,2008 IEEE International Conference on RFID The Venetian, Las Vegas, Nevada, USA,April 16-17, 2008 [4] ZhiguoDing,Research and Realization on Key Technologies of RFID,A dissertation for doctor’ s degree,University of Science and Technology of China,2009,P113～122 [5] Wang Ping,Hu Ai-qun,Pei Wen-jiang,The Design of Anti-collision of UHF RFID System Based on CDMA,Journal of Electronics & Information Technology,Vol.29 No.11 2007 [6] Cai Qingling, Zhan Yiju, Shi Binning,A Mutual Authentication Protocol of Randomized Key Based on EPC C1G2 RFID, TELECOMMUNICATIONS SCIENCE ,2007 23(4) [7] Liang Biao,Hu Ai-qun,Qin Zhong-yuan,A Novel Design for RFID Anti-collision Technique,Journal of Electronics & Information Technology,Vol.29 No.9 2007 [8] Carlo Mutti
,CDMA-based RFID Systems in Dense Scenarios: Concepts and Challenges,2008 IEEE International Conference on RFID The Venetian, Las Vegas, Nevada, USA April 16-17, 2008

Noise Analysis of Diamond Saw Blade Min Zhao 1, a, Lin Zhang1,b , Beiming Tang2 and Kattan Maher 1 1 College of Traffic & Mechanical Engineering, Shenyang Jianzhu University, Shenyang 110168, China 2 School of Chemical Industry, Xi`an Jiaotong University, Xi’an 110168, China azhaomin58@163.com, bsweetzhanglin@163.com Keywords: Diamond Circular Saw Blade, Factors Affecting the Noise, Noise Analysis Abstract.
A potential threat could be brought to safety and the operating efficiency will reduce.
In this formula, Lp represents sound pressure level (dB), p represents the sound pressure of one point(Pa), P0 represents reference sound pressure, according to the international regulations, Po = Pa.
References [1] Stevenson D C Gray W W etc Quietening Circular Saws by Reducing Blade Vibration [J].Noise Control Engineering Journal，1989，33（1）：33

Therefore attention should be drawn to the lateral running stability and safety of railway train due to the coupling effect between the bridge and railway train.
Therefore, attention should be paid to the lateral running stability and safety of the train due to the coupling effect between the train and the bridge.
Impact study of cable-stayed bridge under railway traffic using various models.
Journal of Sound and Vibration, 2001. 240(3): p. 447-465
Guo, Riding comfort of a double-deck long-span bridge under both road vehicles and monorail trains, in Second International Postgraduate Conference on Infrastructure and Environment. 2010: Hong Kong [8].

With the development of the natural gas industry, high flux natural gas pipelines will cause local deformation because of pressurization, which has an important effect in the service safety of pipeline materials.
The research results can provide theoretical basis and experimental basis for pipeline steel welding process design and safety evaluation under high flux conditions.
It can be used to simulate the plastic deformation of pipeline steel in service, which is of great significance for the safety evaluation of high-flux pipeline steel in the pressurization process.
Journal of Offshore Mechanics and Arctic Engineering, 2003, 125: 153-157
International Journal of Pressure Vessels and Piping, 2016, 139: 77-85

Street lighting must provide an acceptable level of illumination to ensure the safety of both drivers and pedestrians.
Those locations were chosen because they were extremely dark and had high pedestrian traffic.
Journal of Energy Storage.
International Research Journal of Education and Technology.
Proceeding of 2020 International Conference in Mathematics, Computer Engineering and Computer Science (ICMCECS).

This grid system on the campus of Resource Discovery in-depth research, the query efficiency and network traffic from two aspects taken into account, a combination of P2P (Peer to Peer) technology, and centralized resource search algorithm on the campus grid resources for efficient search method[2].
In this method, the campus grid resources into multiple regions, with the same type of resource organizations in the same area, the resources of the region search algorithm using centralized resources, the introduction of mobile Agent between regions to carry out resource discovery, thereby enhancing the query efficiency and reduced network traffic.
International Journal of Distributed Sensor Networks, 2009,5 (1) :62-63
Reliability Engineering and System Safety 2006, 91(2):1071-1082
Journal of Information and Computational Science, 2009,6(2): 837-844

In this context, obstacle detection, warning and avoidance is of paramount importance and suitable algorithms are necessary for carrying out the UA mission and safety-critical tasks.
In order to assure adequate safety levels, a separation buffer is introduced, which inflates the avoidance volume associated with the obstacle.
Richardson, LIDAR Obstacle Warning and Avoidance System for Unmanned Aircraft, International Journal of Mechanical, Industrial Science and Engineering, vol. 8, pp. 62-73. (2014) [7] R.
Rodriguez Salazar, Low-Cost Sensors Data Fusion for Small Size Unmanned Aerial Vehicles Navigation and Guidance, International Journal of Unmanned Systems Engineering, 1(3), pp. 16-47. (2013) DOI: 10.14323/ijuseng.2013.11 [10] S.
Ramasamy and K. de Ridder, 4-Dimensional Trajectory Negotiation and Validation System for the Next Generation Air Traffic Management, in proceedings of AIAA Guidance, Navigation & Control Conference, Boston, USA. (2013) DOI: 10.2514/6.2013-4893

However, existing tourist services the system can only provide travel information to tourists, and some traffic profiles, features that are not address the substantive issues for tourists, for tourists in an unfamiliar, giving him information is provided to a person of food material is no way to tell him what to do.
Travel advice objectives and main features of the system (1) Provide recommendations : travel advice system provides users with the most distinguished and the safety advice, under the same economic circumstances of route optimization recommendations, and travel arrangements, from the time the user has made a travel plans for the user to save valuable time and money
[3] Jon A: International Journal of Service Industry Management, Vol. 11 (2000) No.2, p.120

Welcomed overseas help warmly After the earthquake, the Chinese government in a timely manner after the earthquake hazard assessment, public announcement to accept international assistance.
Journal of Xi’an University of Architecture and Technology[J].2009.5.in Chinese [4] Zhou Tie-gang,Zhao Dong.
Journal of Xi’an University of Architecture and Technology[J].2008.5.in Chinese [5] Song Zhan-ping,Zeng Ke, Han Xiao-lei,Xu Lei.
Journal of Xi’an University of Architecture and Technology[J].2008.5.in Chinese [6] Shi Qing-xuan,Yang Kun,Wang Qiu-wei,Men Jin-jie.
Journal of Xi’an University of Architecture and Technology[J].2008.5.in Chinese

Comparative study of motorcycle helmets impact performance AZHAR Hamzah1,2,a, AQBAL HAFEEZ Ariffin1,b , MOHD SYAZWAN Solah1,c, MOHD HAFZI Md Isa1,d, YAHAYA Ahmad1,e and WONG Shaw Voon1,2,f 1 Malaysian Institute of Road Safety Research, Vehicle Safety & Biomechanics Centre, Lot 125, Jalan TKS 1, Taman Kajang Sentral, 43000 Kajang, Selangor D.E., Malaysia 2 Department of Mechanical and Manufacturing Engineering, Faculty of Engineering, Universiti Putra Malaysia, UPM Serdang, 43000 Selangor, Malaysia aazhar@miros.gov.my, baqbal@miros.gov.my, csyazwan@miros.gov.my, dmohdhafzi@miros.gov.my, eyahaya@miros.gov.my, fwongsv@miros.gov.my Keywords: motorcycle helmet, impact performance, shell, liner Abstract.
American Journal of Public Health. 2008.98(8):1464-1467
Traffic Injury Prevention 7, no. 1 (2006): 49–54
Happee, ‘Helmet optimization: outer and inner shell behavior with respect to various criteria’. international journal for consumer and product safety 2 (September 1995): 149–162