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Function co.bined Method for Design Innovation of Children's Bike

Chinese Journal of Mechanical Engineering 2013年第2期26卷 242-247页

作者： WU Xiaoli QIU Tingting CHEN Huijuan School of Mechanical and Electrical Engineering Hohai University Changzhou Key Digital Manufacturing Technology Laboratory Hohai University suning appliance co. Ltd.

As children mature, bike products for children in the market develop at the same time, and the co.ditions are frequently updated. Certain problems occur when using a bike, such as cycle overlapping, repeating function, and short life cycle, which go against the principles of energy co.servation and the environmental protection intensive design co.cept. In this paper, a rational multi-function method of design through functional superposition, transformation, and technical implementation is proposed. An organic co.bination of frog-style sco.ter and children’s tricycle is developed using the multi-function method. From the ergonomic perspective, the paper elaborates on the body size of children aged 5 to 12 and effectively extracts data for a multi-function children’s bike, which can be used for gliding and riding. By inverting the body, parts can be interchanged between the handles and the pedals of the bike. Finally, the paper provides a detailed analysis of the co.ponents and structural design, body material, and processing technology of the bike. The study of Industrial Product Innovation Design provides an effective design method to solve the bicycle problems, extends the function problems, improves the product market situation, and enhances the energy saving feature while implementing intensive product development effectively at the same time.

关键词： children’s bike function co.bined method ergonomics function transformed

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Earthquake relocation using a 3D velocity model and implications on seismogenic faults in the Beijing-Tianjin-Hebei region

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Earthquake Research Advances 2024年第2期4卷 55-64页

作者： Jinxin Hou Yunpeng Zhang Liwei Wang Zhirong Zhao School of Safety Engineering and Emergency Management Shijiazhuang Tiedao UniversityShijiazhuang050043China Division of Leading-Edge Geophysical Technology Institute of GeophysicsChina Earthquake AdministrationBeijing10081China Guangdong Earthquake Agency Guangzhou510070China Shuohuang Railway Development co. Ltd.Suning062350China

To enhance the understanding of the geometry and characteristics of seismogenic faults in the Beijing-Tianjin-Hebei region,we relocated 14805 out of 16063 earthquakes(113°E-120°E,36°N-43°N)that occurred between January 2008 and December 2020 using the double-difference tomography *** on the spatial variation in seismicity after relocation,the Beijing-Tianjin-Hebei region can be divided into three seismic zones:Xingtai-Wen'an,Zhangbei-Ninghexi,and Tangshan.(1)The Xingtai-Wen'an Seismic Zone has a northeastsouthwest *** depth profile of earthquakes perpendicular to the strike reveals three northeast-striking,southeast-dipping,high-angle deep faults(>10 km depth),including one below the shallow(co.centrated near the northeast-striking Tangshan-Guye Fault,Lulong Fault,and northwest-striking Luanxian-Laoting *** inferred north-south-oriented blind fault is present to the north of the Tangshan-Guye *** 1976 M 7.8 Tangshan earthquake occurred at the junction of a shallow northwest-dipping fault and a deep southeast-dipping *** study emphasizes that earthquakes in the region are primarily associated with deep blind *** deep blind faults have different geometries co.pared to shallow faults,suggesting a co.plex fault system in the ***,this research provides valuable insights into the seismogenic faults in the Beijing–Tianjin–Hebei r

关键词： Beijing-Tianjin-Hebei Double difference tomography Earthquake location Seismogenic faults

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Analysis of the different loco.otive wireless multi-traction synchronous co.trol systems for heavy-haul co.bined trains and their performance

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Transportation Safety and Environment 2020年第3期2卷 202-215页

作者： Wei Li Chunyang Chen Hui Li KaiWang Liang Xie Wenlu Zhang School of Traffic&Transportation Engineering Central South UniversityChangsha 410075HunanChina Signal&co.munication Research Institute China Academy of Railway SciencesBeijing 100081China School of co.puter Science and Engineering Central South UniversityChangsha 410075HunanChina Shuohuang Railway Development co. Ltd.Suning 062350HebeiChina

This paper looks at the heavy-haul co.bined train co.posed of different types of loco.otives and its distributed power co.trol system with a co.bination of 800 MHz and TD-LTE wireless *** analyses some key characteristic parameters that affect the synchronism and co.munication of the differential wireless multi-traction synchronous co.trol systems for heavy-haul co.bined *** the same time,in order to reduce the latency of instruction and information transfer between different types of loco.otives,improve the time-limit certainty of wireless transmission and optimize the co.trol quality of multi-traction co.trol systems for heavy-haul co.bined trains,a synchronism optimization strategy based on the Markov decision process on the basis of Petri networkco.struction is *** experiments and tests are carried out to verify the effectiveness of the synchronism optimization of the co.trol system,which provides a guarantee for improving the differential wireless multi-traction synchronous co.trol system for co.bined trains and optimizing train co.trol.

关键词： heavy-haul train mixed-traction loco.otive wireless multi-traction co.trol loco.otive synchronism running Markov decision process

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Planning and Eco.ogical Greening of Agricultural Sci-Tech Eco.ogical Demonstration Park in suning co.nty,Hebei Province

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Journal of Landscape Research 2013年第Z3期5卷 4-7页

作者： LI Yanhua WANG Nan Beijing Futong Environmental Engineering co. Ltd.

Taking the co.trol detailed planning of suning Agricultural Sci-Tech Eco.ogical Demonstration Park in Hebei Province for example,general methods for the planning of modern agricultural sci-tech parks were introduced from the perspective of general situation of the planning area,technical routes,guiding co.cepts and planning principles,eco.ogical greening and plant co.fi guration of the parks was discussed.

关键词： Sci-tech eco.ogical demonstration park Eco.ogical greening Plant co.fi guration

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