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Construction Safety Management and Construction Technology of Low-gas Tunnels

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Journal of Architectural Research and Development 2021年第2期5卷 44-47页

作者： xuguang zheng Heng Zhang Xuesong Su China Merchants Chongqing Communications Technology Research&Design Institute Co. Ltd.Chongqing 400067China Chongqing Rail Transit(Group)Co. Ltd.Chongqing 401120China

With the coordinated development of social economy and technology today,various advanced construction techniques and well-established management measures have begun to be widely used in coal-tunnel ***,in the construction process of low-gas tunnels,it will also cause a certain degree of adverse impact on the construction quality and safety due to the lack of technical experience and management experience to a certain *** on this,this paper takes the actual tunnel project of a coal mine as an example to analyze the main construction technology and safety management measures of low-gas tunnels,so as to provide guarantee for the quality and safety of such tunnel construction.

关键词： Low gas Tunnel construction Construction technology Safety management

Safety Management Strategies for Cross-railway Interchange Widening Project in Highway Reconstruction and Extension

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Journal of World Architecture 2021年第2期5卷 22-25页

作者： Heng Zhang Xuesong Su xuguang zheng China Merchants Chongqing Communications Technology Research&Design Institute Co. Ltd.Chongqing 400067China Chongqing Rail Transit(Group)Co. Ltd.Chongqing 401120China

Under the background of rapid social and economic development,the traffic volume of highways has increased,which has brought tremendous pressure to the old *** response to this situation,the original highway must be reconstructed and *** is necessary to focus on the analysis and exploration of the methods of interchange reconstruction and extension in current highway reconstruction and extension to avoid affecting normal traffic,as it will inevitably have an impact on the traffic operation *** this situation,it is necessary to analyze and understand the format and characteristics of traffic organization of the interchange operation area in time and propose corresponding safeguard measures.

关键词： Highway reconstruction and extension Cross-railway overpass Widening project Safety management strategy

Construction Technology of Large-deformation High Geostress Soft Rock Tunnel

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Journal of World Architecture 2021年第1期5卷 30-32页

作者： xuguang zheng Heng Zhang Xuesong Su China Merchants Chongqing Communications Technology Research&Design Institute CO. LTD.Chongqing 400067China Chongqing Rail Transit(Group)Co. Ltd.Chongqing 401120China

In the process of tunnel construction,if large-deformation occurs in high geostress soft rock,it will likely cause geological *** situation will not only seriously affect the smooth progress of tunnel construction,but also cause serious safety threat to the construction ***,with the continuous growth in the number and scale of tunnel construction in recent years,the construction technology for high geostress soft rock with large-deformation has begun to receive more and more attention from the *** on this,this paper takes an actual project as an example to analyze the specific application of the technology in order to improve the construction effect and avoid the damage caused by the large-deformation of the high geostress soft rock.

关键词： Tunnel construction High geostress soft rock Large-deformation Construction technology

Design Strategy of New and Reconstructed Interchanges on Expressways

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Journal of World Architecture 2021年第2期5卷 33-35页

作者： Jing Zhou Heng Zhang xuguang zheng China Merchants Chongqing Communications Technology Research&Design Institute Co. Ltd.Chongqing 400067China

China's urban development is very fast,and the continuous improvement of the national economic level in recent years has also prompted most families to have their own *** this situation,the increase and transformation of road traffic has been a necessary work for the development of various *** paper starts with the basic reasons for the design of new and improved interchanges,and expounds the specific design type division and main influencing ***,the paper puts forward the design strategy of newly added and reconstructed interactive interchanges with high feasibility,hoping to provide reasonable reference for relevant road traffic engineering optimization.

关键词： Expressway Road reconstruction Interchange

Safety Design Strategy for Highway Interchange Exit Ramp

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Journal of Architectural Research and Development 2021年第2期5卷 41-43页

作者： Jing Zhou Yaoping Luo Heng Zhang xuguang zheng China Merchants Chongqing Communications Technology Research&Design Institute Co. Ltd.Chongqing 400067China Railway Changjiang Communications Designing Group Co. Ltd.Chongqing 401147China

Highway is an important type of road in China’s road network,and it also carries a larger portion of transportation *** is the first indicator in the stage of its use,so it is necessary to carry out safety design focusing on the highway interchange exit ramp to effectively prevent traffic ***,in this paper,the important significance of the safety design of the highway interchange exit ramp and the key factors affecting its safety were discussed and studied in detail,and finally corresponding strategies were proposed for discussion and communication.

关键词： Highway Interchange Ramp Safety design

Semiclassical theory of optically bistable laser by output-feedback pumping scheme

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Chinese Journal of Lasers 1992年第4期 11-20页

作者： xuguang Yan, Ling zheng (Hangzhou Institute of Electronic Engineering,Hangzhou 310037,China)

Steady-state solutions of the output-feedback pumped bistable laser(OFPBL)have been obtained using the semiclassical laser equations.A linear-stability of the solutionshas been *** results tell us that width of the hysteresis loop and the laser output in-tensity vary widely with the pump intensity and the intensity of input optical signal and thefeedback coefficient of the laser output as well as the other *** shows that this typeof bistable laser is a kind of active optical bistable device which can be adjusted and controlledconveniently.

关键词： optical bistability laser semiclassical theory

Generation of transgenic chicken through ovarian injection

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Animal Models and Experimental Medicine 2025年第1期8卷 187-193页

作者： Jinghua Jiang Caiying Wang xuguang Du Fei Gao Sen Wu Frontiers Science Center for Molecular Design Breeding(MOE) State Key Laboratory of Animal Biotech BreedingCollege of Biological SciencesChina Agricultural UniversityBeijingChina Sanya Institute of China Agricultural University SanyaChina

Background : Traditional DNA microinjection methods used in mammals are difficult to apply to avian species due to their unique reproductive characteristics. Genetic manipulation in chickens, particularly involving immature follicles within living ovaries, has not been extensively explored. This study seeks to establish an efficient method for generating transgenic chickens through ovarian injection, potentially bypassing the challenges associated with primordial germ cell (PGC) manipulation and fertilized egg microinjection. Methods : Hens were anesthetized and underwent a surgical procedure to access the ovary for DNA injection into immature follicles. The study used liposomes to deliver GFP- expressing plasmids at various dosages. After injection, hens recovered, and their eggs were fertilized through artificial insemination. Results : Transgenic chickens were successfully generated in one generation without needing G0 founders. The injection of 20 μg plasmid yielded the highest transgenic efficiency at 12.1%. GFP- positive embryos were confirmed through microscopy, and successful transgene expression was validated at the tissue level using immunostaining. TERT and GFP elements introduced in the G1 generation resulted in 4.1% positive transgene rates, as confirmed by PCR and Southern blotting. Conclusion : This ovarian injection method offers a promising alternative for avian genetic manipulation, bypassing complex PGC procedures and enabling direct generation of G1 transgenic chickens. This technique simplifies the transgenic process for chickens and has the potential to be adapted for other avian species, especially those without established PGCs culture systems.

关键词： avian species gene manipulation ovarian injection transgenic chickens

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基于SAE J1939协议的重型车辆坡道识别实时算法

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汽车工程 2010年第7期32卷 640-642,647页

作者：王玉海董瑞先王松郑旭光一汽解放青岛汽车厂研发部青岛266043

介绍了一种基于SAE J1939协议的坡道识别算法,根据车辆系统动力学原理计算道路的坡度。首先通过SAE J1939协议获取发动机信号并据此先后计算出发动机输出转矩和车辆加速度,得到道路的坡度,并根据重型汽车的特点,采用了相应的数据处理方... 详细信息

介绍了一种基于SAE J1939协议的坡道识别算法,根据车辆系统动力学原理计算道路的坡度。首先通过SAE J1939协议获取发动机信号并据此先后计算出发动机输出转矩和车辆加速度,得到道路的坡度,并根据重型汽车的特点,采用了相应的数据处理方法。结果显示,这种坡道识别算法简便、实用、高效、准确,能够满足车辆AMT系统的要求。

关键词：重型车辆坡道识别 SAE J1939协议机械式自动变速器

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基于ADAS地图的载货车预见巡航实时优化算法

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汽车工程 2020年第10期42卷 1335-1339,1411页

作者：王玉海李兴坤张鹏雷郑旭光吉林大学汽车仿真与控制国家重点实验室长春130000 吉林大学青岛汽车研究院青岛266000 中寰卫星导航通信有限公司北京100094

基于ADAS地图,结合预见性节油驾驶先验知识,采用车辆纵向动力学重构车辆行驶前方路网,提出了一种商用车预见性巡航控制动态规划优化算法,解决了动态规划算法在长距离多约束下的算法臃肿、无法满足车载嵌入式系统实时计算等实用化问题。... 详细信息

基于ADAS地图,结合预见性节油驾驶先验知识,采用车辆纵向动力学重构车辆行驶前方路网,提出了一种商用车预见性巡航控制动态规划优化算法,解决了动态规划算法在长距离多约束下的算法臃肿、无法满足车载嵌入式系统实时计算等实用化问题。实车试验验证结果表明,在同路线、同工况和同驾驶员的驾驶条件下,预见性巡航控制比一般驾驶员驾驶节油3%~6%。

关键词： ADAS地图预见性巡航控制动态规划优化算法

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