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双阀电控单体泵燃油系统喷射特性研究

双阀电控单体泵燃油系统喷射特性研究

作者：文李明哈尔滨工程大学

学位级别：硕士

实现高效清洁燃烧不仅需要合理组织进气、优化燃烧室结构，而且更重要的是需要燃油喷射系统定时、定量、定压的喷射高压燃油。双阀电控燃油喷射系统不但能够实现高的燃油喷射压力、灵活可控的喷油定时和精确的喷油量控制，还能够柔性的... 详细信息

实现高效清洁燃烧不仅需要合理组织进气、优化燃烧室结构，而且更重要的是需要燃油喷射系统定时、定量、定压的喷射高压燃油。双阀电控燃油喷射系统不但能够实现高的燃油喷射压力、灵活可控的喷油定时和精确的喷油量控制，还能够柔性的调节喷油速率和启喷压力，是柴油机燃油喷射系统应对未来更苛刻排放法规的重点发展方向之一。本文以传统电控单体泵系统为基础，构建了一种双电磁阀控制式电控单体泵燃油喷射系统。并采用实验分析和AMESim数值模拟相结合的方法，针对该系统的喷射特性进行了深入研究，从而为双阀系统的开发、应用提供依据，也为其他类似方面的改动提供参考。纵观全文，论文的研究工作及所取得的相关成果主要表现在以下几个方面：首先对所构建的双阀系统结构及工作原理进行了深入剖析，并基于此建立了双阀系统的AMESim数值计算模型。通过在SCV控制模式下，对双阀系统喷射特性的实验与仿真对比分析可得，所建立的计算模型具有较高的可信度，可为双阀系统的喷射特性研究提供平台。为了探究双阀系统中两个电磁阀不同控制参数对系统喷油特性的影响，进行了双阀系统协同控制喷射特性研究。进而摸清了双阀系统不同控制模式下的喷油特性，总结出双电磁阀控制参数的确定方法，掌握了双阀系统的主要技术特征，即双阀系统相比于传统电控单体泵系统的显著优势在于其具有循环间动态可调的针阀开启压力（Nozzle OpenPressure. NOP）及灵活可控的多次喷射能力。考虑到双阀系统在生产和匹配标定过程中性能的一致性及稳定性，进行了双阀系统全工况范围内不同控制模式下的喷射特性关键影响因素研究。首先，分析了凸轮型线速率、柱塞直径、高压油管内径、高压油管长度和喷孔直径5大特性参数对系统喷射特性（喷射压力、循环喷油量和喷油持续期）的响应，以及与各种喷射特性的相关性;其次，给出了全工况范围内系统关键结构参数对循环喷油量波动影响的百分比量化指标，及各参数与循环喷油量在全工况范围内无交互作用和有交互作用条件下的一次、二次因子与循环喷油量相关性变化规律;最后，利用现代控制理论的状态空间法分析了双阀系统单缸高压喷射系统和多缸高低压耦合系统的稳定性情况。由以上分析，为双阀系统的喷射性能稳定性及一致性提供了保障。

关键词：双电磁阀电控单体泵协同控制 NOP 喷射特性

绝经后骨质疏松与IGF-1及相关骨代谢指标关系的研究

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广东医学 2005年第5期26卷 624-626页

作者：杨力蔡德鸿汤灵丽南方医科大学珠江医院内分泌广州510282 南方医科大学珠江医院谊侨科广州510282

目的探讨绝经后骨质疏松及其引起的骨折与IGF-1水平及相关骨代谢指标的关系。方法应用双能X线骨密度仪测量腰椎(L1～4)、股骨颈、粗隆间、大转子的骨密度(BMD),并根据有无骨质疏松性骨折将92例绝经后妇女分为无骨质疏松组(NOP),骨质疏... 详细信息

目的探讨绝经后骨质疏松及其引起的骨折与IGF-1水平及相关骨代谢指标的关系。方法应用双能X线骨密度仪测量腰椎(L1～4)、股骨颈、粗隆间、大转子的骨密度(BMD),并根据有无骨质疏松性骨折将92例绝经后妇女分为无骨质疏松组(NOP),骨质疏松无骨折组(OP1)和骨质疏松伴骨折组(OP2),测定各组受试者IGF-1水平及相关骨代谢生化指标。结果血清IGF-1水平下降,OP1及OP2组低于NOP组,OP2组的IGF-1水平低于OP1组(P<0.05)。所有受试者的IGF-1与BMD,E2呈显著正相关,与年龄和甲状旁腺素(PTH)呈显著负相关(P<0.05)。结论绝经后骨质疏松患者的IGF-1水平下降,其血清水平与骨丢失、骨质疏松及骨折存在密切的相关性,可望成为一种更加准确而且易于检测的预测骨质疏松发病和骨折的骨代谢标志物。

关键词：绝经后骨质疏松骨代谢指标双能X线骨密度仪骨质疏松性骨折骨代谢生化指标血清IGF-1 骨质疏松患者骨代谢标志物绝经后妇女甲状旁腺素方法应用血清水平受试者股骨颈粗隆间大转子无骨折 NOP BMD 正相关负相关

肝炎后肝硬化患者血清TNF-α、BGP及尿Crosslaps变化与骨代谢的关系

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山东医药 2005年第10期45卷 1-3页

作者：陈自平刘倩王文奇闫明先山东省千佛山医院

目的探讨肝炎后肝硬化患者骨代谢异常的发病机制。方法分别测定36例乙型肝炎后肝硬化患者血清TNF-α、骨钙素(BGP)、尿骨胶原交联(Crosslaps)水平及骨密度,并与15例健康者对照。结果肝硬化组血清肿瘤坏死因子α(TNF-α)、尿Crosslaps水... 详细信息

目的探讨肝炎后肝硬化患者骨代谢异常的发病机制。方法分别测定36例乙型肝炎后肝硬化患者血清TNF-α、骨钙素(BGP)、尿骨胶原交联(Crosslaps)水平及骨密度,并与15例健康者对照。结果肝硬化组血清肿瘤坏死因子α(TNF-α)、尿Crosslaps水平较对照组显著升高(PNOP)组升高明显(PNOP组降低更明显(P<0.05)。OP组血清TNF-α、尿Crosslaps均与尺桡骨密度呈负相关(r=-0.483,P<0.05;r=-0.624,P<0.01),而血清BGP与尺桡密度呈正相关(r=0.51,P<0.05)。结论乙肝后肝硬化患者存在骨形成减弱,骨吸收加强,从而导致肝性骨病(HBD)发生。血清TNF-α水平升高可引起骨吸收加强,是HBD发生的重要原因之一。降低体内TNF-α水平,对HBD防治可能有一定意义。

关键词：尿Crosslaps 血清TNF-α 肝硬化患者肝炎后 BGP 肿瘤坏死因子α(TNF-α) 尿骨胶原交联骨质疏松骨代谢异常发病机制 0.05 尺桡密度肝性骨病骨密度对照组骨吸收 HBD 骨钙素健康者 P水平 NOP 负相关正相关骨形成

左型精氨酸减轻心肌缺血再灌注损伤的实验研究

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中国病理生理杂志 1998年第6期14卷 702-702,738页

作者：王万铁林丽娜徐正李东王宗敏王卫温州医学院病理生理学教研室

以往实验证实，心肌缺血再灌注损伤（ｍｙｏｃａｒｄｉａｌｉｓｃｈｅｍｉａ－ｒｅｐｅｒｆｕｓｉｏｎｉｎｊｕｒｙ，ＭＩＲＩ）与内源性一氧化氮（ｎｉｔｒｉｃｏｘｉｄｅ，ＮＯ）水平下降有关。本研究观察左型精氨酸（Ｌ－ａｒｇｉｎ... 详细信息

以往实验证实，心肌缺血再灌注损伤（ｍｙｏｃａｒｄｉａｌｉｓｃｈｅｍｉａ－ｒｅｐｅｒｆｕｓｉｏｎｉｎｊｕｒｙ，ＭＩＲＩ）与内源性一氧化氮（ｎｉｔｒｉｃｏｘｉｄｅ，ＮＯ）水平下降有关。本研究观察左型精氨酸（Ｌ－ａｒｇｉｎｉｎｅ，Ｌ－Ａｒｇ）对ＭＩＲＩ时血...

关键词：心肌缺血再灌注损伤左型精氨酸 NOP LDH

Notification Oriented and Object Oriented Paradigms Comparison via Sale System

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Journal of Software Engineering and Applications 2012年第9期5卷 695-710页

作者： Jean M.Simao Danillo L.Belmonte Adriano F.Ronszcka Robson R.Linhares Glauber Z.Valenca Roni F.Banaszewski Joao A.Fabro Cesar A.Tacla Paulo C.Stadzisz Márcio V.Batista Graduate School in Electrical Engineering&Industrial Computer Science(CPGEI) Federal University of Technology-ParanáCu-ritibaBrazil Graduate School of Applied Computing(PPGCA) Federal University of Technology-ParanáCuritibaBrazil

This paper presents a new programming paradigm named Notification-Oriented Paradigm (NOP) and analyses the performance aspects of NOP programs by means of an experiment. NOP provides a new manner to conceive, structure, and execute software, which would allow causal-knowledge organization and decoupling better than standard solutions based upon current paradigms. These paradigms are essentially Imperative Paradigm (IP) and Declarative Paradigm (DP). In short, DP solutions are considered easier to use than IP solutions due to the concept of high-level programming. However, they are considered slower in execution and lesser flexible in development. Anyway, both paradigms present similar drawbacks such as redundant causal-evaluation and strongly coupled entities, which decrease software performance and processing distribution feasibility. These problems exist due to an orientation to a monolithic inference mechanism based on sequential evaluation searching on passive computational entities. NOP proposes another way to structure software and make its inferences, which is based on small, collaborative, and decoupled computational entities whose interaction happens through precise notifications. This paper presents a quantitative comparison between two equivalent implementations of a sale system, one developed according to the principles of Object-Oriented Paradigm (OOP/IP) in C++ and other developed according to the principles of NOP based on a NOP framework in C++. The results showed that NOP implementation obtained quite equivalent results with respect to OOP implementation. This happened because the NOP framework uses considerable expensive data-structures over C++. Thus, it is necessary a new compiler to NOP in order to actually use its potentiality.

关键词： Notification Oriented Paradigm Notification Oriented Inference NOP and OOP Comparison

A Game Comparative Study:Object-Oriented Paradigm and Notification-Oriented Paradigm

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维普期刊数据库

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Journal of Software Engineering and Applications 2012年第9期5卷 722-736页

作者： Jean M.Simao Danillo L.Belmonte Glauber Z.Valenca Márcio V.Batista Robson R.Linhares Roni F.Banaszewski Joao A.Fabro Cesar A.Tacla Paulo C.Stadzisz Adriano F.Ronszcka Graduate School in Electrical Engineering&Industrial Computer Science(CPGEI) Federal University of Technology-ParanáCu-ritibaBrazil Graduate School of Applied Computing(PPGCA) Federal University of Technology-ParanáCuritibaBrazil

This paper presents a new programming paradigm named Notification-Oriented Paradigm (NOP) and analyses the performance aspects of NOP programs by means of an experiment. NOP provides a new manner to conceive, structure, and execute software, which would allow better performance, causal-knowledge organization, and decoupling than standard solutions based upon usual paradigms. These paradigms are essentially Imperative Paradigm (IP) and Declarative Paradigm (DP). In short, DP solutions are considered easier to use than IP solutions due to the concept of high-level programming. However, they are considered slower in execution and less flexible in development. Anyway, both paradigms present similar drawbacks such as redundant causal-evaluation and strongly coupled entities, which decrease the software performance and the processing distribution feasibility. These problems exist due to an orientation to a monolithic inference mechanism based upon sequential evaluation by searching on passive computational entities. NOP proposes another way to structure software and make its inferences, which is based upon small, collaborative, and decoupled computational entities whose interaction happens through precise notifications. In this context, this paper presents a quantitative comparison between two equivalent implementations of a computer game simulator (Pacman simulator), one developed according to the principles of Object-Oriented Paradigm (OOP/IP) in C++ and other developed according to the principles of NOP. The results obtained from the experiments demonstrate, however, a quite lower performance of NOP implementation. This happened because NOP applications are still developed using a framework based on C++. Besides, the paper shows that optimizations in the NOP framework improve NOP program performance, thereby evidencing the necessity of developing a NOP language/compiler.

关键词： Notification Oriented Paradigm Notification Oriented Inference NOP and OOP Comparison

Notification Oriented Paradigm(NOP)and Imperative Paradigm:A Comparative Study

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Journal of Software Engineering and Applications 2012年第6期5卷 402-416页

作者： Jean M.Simao Cesar A.Tacla Paulo C.Stadzisz Roni F.Banaszewski Graduate School in Electrical Engineering&Industrial Computer Science(CPGEI) Federal University of Technology of Paraná(UTFPR)CuritibaBrazil Graduate School of Applied Computing(PPGCA) Federal University of Technology of Paraná(UTFPR)CuritibaBrazil.

This paper presents a new programming paradigm named Notification Oriented Paradigm (NOP) and analyses performance aspects of NOP programs by means of an experiment. NOP provides a new manner to conceive, structure, and execute software, which allows better performance, causal-knowledge organization, and entity decoupling than standard solutions based upon current paradigms. These paradigms are essentially Imperative Paradigm (IP) and Declarative Paradigm (DP). In short, DP solutions are considered easier to use than IP solutions thanks to the concept of high-level programming. However, they are considered slower to execute and lesser flexible to program than IP. Anyway, both paradigms present similar drawbacks like causal-evaluation redundancies and strongly coupled entities, which decrease software performance and processing distribution feasibility. These problems exist due to an orientation to monolithic inference mechanism based upon sequential evaluation by means of searches over passive computational entities. NOP proposes another manner to structure software and make its inferences, which is based upon small, smart, and decoupled collaborative entities whose interaction happen by means of precise notifications. This paper discusses NOP as a paradigm and presents certain comparison of NOP against IP. Actually, performance is evaluated by means of IP and NOP programs with respect to a same application, which allow demonstrating NOP superiority.

关键词： Notification Oriented Paradigm Notification Oriented Inference NOP and IP Comparison

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维普期刊数据库

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单片机抗干扰编程的一点经验

核电子学与探测技术 1996年第3期16卷 230-231页

作者：杨宝生中国原子能科学研究院

本文介绍了单片机系统利用“ＮＯｐ”指令干扰的工作过程及实际工作中的一些作法。

关键词：单片机程序设计抗干扰 NOP

FDA对COX-2的建议有利于Bextra及Celebrex

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国外药讯 2005年第8期 38-38页

作者：景新(摘)

据NOP World Health最新研究，新近美国FDA顾问委员会对COX-2抑制剂的建议可能增加Pfizer公司的Bextra（valdecoxib）（Ⅰ）及Celebrex（celecoxib）（Ⅱ）的处方，不过医师和病人会继续避用Merck公司的Vioxx（rofecoxib）（Ⅲ），即使... 详细信息

据NOP World Health最新研究，新近美国FDA顾问委员会对COX-2抑制剂的建议可能增加Pfizer公司的Bextra（valdecoxib）（Ⅰ）及Celebrex（celecoxib）（Ⅱ）的处方，不过医师和病人会继续避用Merck公司的Vioxx（rofecoxib）（Ⅲ），即使它重返市场。

关键词： COX-2抑制剂 Bextra 美国FDA Celebrex Pfizer公司 Merck公司 Health 顾问委员会 NOP