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Search Results: 1 - 10 of 79835 matches for " 邬春学 "
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克拉玛依石化工业园污水处理厂曝气生物滤池工艺除磷效果分析
Analysis on the Effect of Dephosphorization by Biological Aerated Filter Process in Sewage Treatment Plant of Karamay Petrochemical Industrial Park
 [PDF]

刘兵伟, 王银, 李娟,
Water pollution and treatment (WPT) , 2015, DOI: 10.12677/WPT.2015.31001
Abstract:
克拉玛依石化工业园污水处理厂采用气浮、S3D加三级生物滤池工艺,处理后的出水要求达到《城镇污水处理厂污染物排放标准》(GB18918-2002)一级A的标准,即处理后的总磷要求达到0.5 mg/L以下。结合污水处理厂的实际工艺,重点研究了系统的化学除磷和生化混合除磷,对以后类似的工艺运行具有参考意义。
The sewage treatment plant of Karamay petrochemical industrial park uses flotation, S3D and three-stage biological aerated filter process; the treated water has reached level A standard of the “Urban Sewage Treatment Plant Pollutant Discharge Standard” (GB18918-2002), meaning that the total phosphorus after treatment are less than 0.5 mg/L. Combined with actual process of the se-wage treatment plant, this paper focuses on chemical dephosphorization system and biochemical mixed dephosphorization, having reference significance to the later similar process.
克拉玛依石化工业园污水处理厂硫化氢的产生及治理研究
Hydrogen Sulfide Production and Management Research of Karamay Petrochemical Industrial Park Sewage Treatment Plant
 [PDF]

刘兵伟, 王银, 白洁, 李娟, 群辉, 洪骧龙,
Water pollution and treatment (WPT) , 2016, DOI: 10.12677/WPT.2016.41004
Abstract:
由于进厂污水含硫高的特殊性,石化工业园污水处理厂车间内硫化氢浓度严重超标,严重影响职工健康和周边环境。为治理硫化氢安全隐患,水厂主要采用从源头来水充氧控制、过程硫化物的催化、末端集中收集处理三位一体综合处理方法。突出了预防性控制法和过程催化法在治理硫化氢中起到了防患于未然,从源头上减少了污水处理厂硫化氢的污染问题。
Due to the particularity of high sulfur contained in the sewage treatment plant, the concentration of hydrogen sulfide in the wastewater treatment plant of the petrochemical industrial park is se-riously overweight, which seriously affects the health of the workers and the surrounding envi-ronment. In order to control the safety hazard caused by hydrogen sulfide, water plants mainly adopts the trinity comprehensive treatment method, including controlling the oxygen of source water, catalyzing sulfide in the process and centralized collection and processing in the end. The comprehensive treatment method highlighted the preventive effect of the preventive control me-thod and the process catalytic method, which reduced the pollution of hydrogen sulfide in sewage treatment plant from the source.
An Applied DGPS Desian Method and the Field Intelligent Unit
一种实用的DGPS设计方法与现场智能单元

,余镇危
计算机系统应用 , 2003,
Abstract: 本文介绍了一种实用的差分GPS即DGPS、无线数据通信与现场智能仪表相结合的基本工作原理,重点分析了DGPS计算方法和计算机实现.文中还以河海航道管理应用为例,根据其特殊环境,提出了差分定位的软件编程基本思路、系统的设计方法、数据通信协议等.该系统运行稳定、可靠,目前正在油田、河海航道部门推广使用.
aodv在移动自组网络控制系统中的应用研究
,韩文冬
计算机应用 , 2007,
Abstract: ?在对aodv的路由建立及路由维护机制分析的基础上,结合移动自组网络控制系统(ncs)中数据传输的特点,对aodv的路由维护机制做了改进,即当链路中断时立刻由影响到的源节点发起路由建立,以减少网络延时。ns2仿真结果表明,当网络规模不大时,改进后的协议能有效减少移动自组ncs端到端平均延时,有助于提高系统的可靠性。
基于覆盖架构的ncs最小代价调度策略
,郭贤辉
计算机应用 , 2008,
Abstract: ?将覆盖网络引入到基于internet的网络控制系统(ncs)中,讨论了一种适合于internet网络控制系统的相近最小代价调度(mlcs)策略,并对其进行了优化。通过仿真系统表明,该基于覆盖网络的调度及其优化策略能有效地保证网络服务质量qos,从而提高ncs的性能。
多路径路由协议emp—aomdv的研究与实现
杨朝梁?
计算机科学 , 2009,
Abstract: 为了减少建立路由所产生的延时,aodv路由协议允许拥有积极路由的中间节点响应路由请求,而不考虑该节点当时的负荷,这样虽然快速地建立了路由,但并不一定能有效地传输数据。针对这一问题,在aodv的基础上对一种多路径路由方法mp-aomdv进行了优化。这种优化的协议我们称为emp-aomdv(enhancedadhocondemandmulti-pathvectorroutingprotocol)。结果表明改进的协议和原协议相比,降低了端到端的延时和丢包率,提高了传输效率。
远程ncs的qos调度策略研究
郭贤辉?
计算机科学 , 2009,
Abstract: 由于internet只提供尽力而为服务,其随机、不确定的延时,不能保证基于internet的远程ncs实时性等qos要求,使得控制系统的稳定性很差。在ip网传统分布式qos路由策略的基础上,提出一种基于数据优先级机制和指令推测技术的远程ncs的qos调度策略。通过ns2仿真实验表明,在网络负载不过大时,该qos调度策略能有效保证远程ncs的系统延时,有助于提高网络的带宽接纳率和控制系统的可靠性。
一种提高tcp性能的移动自组网e-oaodv协议的实现
杨朝梁?
计算机科学 , 2009,
Abstract: 为了改善移动adhoc网络环境下tcp的性能,对aodv的改进协议0aodv协议做了一定的修订,得到e-oaodv(enhancedoptimaladhocon-demanddistantvector)协议。该协议通过在路由失效时使用来自目的节点的ack应答信号所包含的路由信息来尝试继续传输数据,同时通过对oaodv和tcp两者的修订来实现在路由重建后尽可能地恢复因路由失效所丢失的数据包。ns2下的仿真结果表明,e-oaodv对断线点离源节点较近的情况下的tcp性能有较显著的改善,尤其在路由总
Research on QoS Scheduling Strategies for Remote NCS
远程NCS的QoS调度策略研究

WU Chun-xue,GUO Xian-hui,
,郭贤辉

计算机科学 , 2009,
Abstract: As Internet only provides best effort service,its random and uncertain delay can not guarantee QoS requirements,such as real-time performance,for remote networked control systems based on Internet,making the stability performance of control systems poor.On the basis of the traditional distributed QoS routing strategies for IP-network,we put forward an QoS scheduling strategy,based on data priority mechanism and instruction speculate technology,for remote NCS.It was illustrated through the NS2 simulation exp...
Implementation of an Ad Hoc Network Protocol E-OAODV Improving the Performance of TCP
一种提高TCP性能的移动自组网E-OAODV协议的实现

WU Chun-xue,YANG Chao-liang,
,杨朝梁

计算机科学 , 2009,
Abstract: In order to improve the performance of TCP used in Ad Hoc networks,an enhanced routing protocol based on AODV was presented,which is called E-OAODV(Enhanced Optimal Ad Hoc On-demand Distant Vector)in this paper.By using routing information included in ACK returned from destination nodes,E-OAODV tries to transfer data to destination node while routing failures occurred.And at the same time,with modifications in both TCP and OAODV,E-OAODV tries its best to recover the lost data caused by routing failures.By N...
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