Typical accident-causing" theories includes Heinrich" s Domino" s theory, its development by Bird, Adams and other people, progress of which is that it is deficiencies of management system that are the root cause in accident causation sequence. This is author" s idea resource and main method to produce the water traffic accident-causing theory . in addition, uncontrolled transferring of energy theory, applies widely in safety management scheme for water traffic; human error accident model can be used to analyze causes of collision accident and to take preventive measures; perturbation theory and multilinear event sequencing method is a very useful investigation method to water traffic accidents. All of these theories have contributed to the development of water traffic accident-causing theory. As to orbit intersecting theory, the paper thinks it extension of Domino s theory, although it exists independently.

有代表性的事故致因理論有海因里希因果連鎖理論以及博德深夜在线、亞當(dāng)斯等人對(duì)該理論的發(fā)展国产在线com，這些發(fā)展的主要進(jìn)步是突出了管理缺陷是事故因果連鎖中的基本原因爱情岛论坛亚洲自拍，是本文分析和發(fā)展水上交通事故致因理論的主要思想來(lái)源和方法論禁止18岁看的免费黄视频网站；能量意外轉(zhuǎn)移理論，廣泛的應(yīng)用在水上交通安全的各項(xiàng)具體管理制度中456亚洲人成影视；人失誤事故模型能用于指導(dǎo)對(duì)碰撞事故的原因分析和預(yù)防一级裸交有声音A片；動(dòng)態(tài)變化理論及多線性事件連鎖論對(duì)指導(dǎo)事故調(diào)查是較好的分析方法；軌跡交叉理論雖然以獨(dú)立的理論形式存在精品视频全部免费，但本文認(rèn)為其實(shí)質(zhì)仍然是因果連鎖理論的發(fā)展性色精品视频网站在线观看。

This paper presents a virtual electronic technology development, traffic signal design, Traffic lights and the design method; Comprehensive analysis and comparison of the advantages and disadvantages of the design method, The topic of virtual electronic technology used to achieve the main streets and secondary streets crossroads of the traffic signal controller design electronic workbench to the traffic signal control circuit simulation.

本文首先簡(jiǎn)要介紹虛擬電子技術(shù)的發(fā)展、交通信號(hào)燈設(shè)計(jì)的作用农村少妇A级毛片免费看、以及交通信號(hào)燈的各種設(shè)計(jì)方法；綜合分析比較各種設(shè)計(jì)方法的優(yōu)缺點(diǎn)亚洲精品国产2014AV天堂网手机版，本課題采用虛擬電子技術(shù)實(shí)現(xiàn)主要街道和次要街道十字路口的交通燈控制器的設(shè)計(jì)黄色带三级片视频，采用電子工作臺(tái)EWB對(duì)交通信號(hào)燈控制電路進(jìn)行仿真。

The main works are as follows: 1 The developingt history of the traffic load on bridges is represented. Typical bridge codes in some countries are discussed and these traffic load models are comparative analyzed. Analysis shows that the influence of layout axle for the total traffic load effect on bridge gradually becomes smaller with the increase of bridge span. So most national norms use the distributed load as the equipollent load of traffic load.

主要內(nèi)容包括下面幾個(gè)方面： 1闡述了橋梁汽車(chē)荷載發(fā)展的簡(jiǎn)史勉费的黄色视频，討論了部分國(guó)家典型的橋梁汽車(chē)荷載設(shè)計(jì)規(guī)范男操女的骚黄视频在线，并對(duì)這些荷載模型進(jìn)行了對(duì)比分析，分析表明隨著橋跨的增大能看啪啪啪的网站，車(chē)軸布置對(duì)橋梁整體荷載效應(yīng)的影響逐漸變小国产一区二区欧美日韩在线观看，因而大部分國(guó)家的規(guī)范都把均布荷載作為車(chē)輛的等代荷載。

From two incoming roads seperatively, the traffic on the left will interpenetrate the traffic flow in both of the loops, while the traffic on the right only need interpentrate the outer-loop traffic flow.

el 兩條進(jìn)口車(chē)道車(chē)輛進(jìn)入交叉口時(shí)日本黄色视频高清网站，左側(cè)兩條進(jìn)口車(chē)道車(chē)輛進(jìn)入交叉口時(shí)国产大片自拍，左側(cè)車(chē)流需與兩條環(huán)行車(chē)流穿插，而右側(cè)車(chē)流只需與外側(cè)環(huán)行車(chē)流穿插国产欧美亚洲一区中文字幕。

In limit the foundation that comments a system to go up, the article is built from course theory, isogon of effect of traffic of integrated traffic and division into districts, branch, city traffic, space spends area, reviewed our country traffic to carry geographical development history and research process and newest progress, comb this course from 20 centuries the development since 20 time is mixed the macroscopical sequence of thought of research, undertake be summed up simply and be commentinged to its.

在界定評(píng)述體系的基礎(chǔ)上美女自拍理论视频，本文從學(xué)科理論構(gòu)筑、區(qū)域綜合交通與區(qū)劃日韩加勒比一本无码精品、部門(mén)交通美女视频韩国一区二区、城市交通、空間效應(yīng)等角度，回顧了我國(guó)交通運(yùn)輸?shù)乩韺W(xué)的發(fā)展歷史和研究過(guò)程以及最新進(jìn)展国产在线看你懂得，梳理出該學(xué)科自20世紀(jì)20年代以來(lái)的發(fā)展和研究的宏觀脈絡(luò)国产欧美在线不卡，并對(duì)其進(jìn)行簡(jiǎn)單總結(jié)和評(píng)述。

In recently 20 years, the urban traffic which including justle and accident become worsen and worsen, so designing the Intelligent Traffic control system which adapt to national traffic requirement and improving it's capability in reliability and real time, will bring important effect not only to all of the traffic system but also to people's life and social continual development.

近20年來(lái)欧美一级淫片AAAAAAA，城市交通擁堵国产人人操人人入、交通事故等一系列交通問(wèn)題日益嚴(yán)峻，建立適合我國(guó)國(guó)內(nèi)交通需求的智能交通控制系統(tǒng)插插插射射射，更好的提高其實(shí)時(shí)性和可靠性夜色樱花网站，不僅對(duì)整個(gè)交通運(yùn)輸系統(tǒng)、而且對(duì)人們的生活模式和質(zhì)量国产亚洲欧美日韩久久图片、對(duì)社會(huì)的可持續(xù)發(fā)展AV黄片在线免费，都將產(chǎn)生重要影響。

It would be the powerful theory base and evidence for alleviating congestion. In this dissertation, characteristics and effected factors of urban traffic congestion were generally analyzed and evaluation measures of congested traffic and normal traffic were reviewed. An index-system of congestion measures adapting to urban traffic was set up in which road characteristic, decision-making, perceptivity of citizen travel and economic-society adaptability were considered. A method of"classify status first, evaluate trend later"was found out according to analysis of all existing comprehensive evaluation methods.

論文在全面分析城市道路交通擁堵特性及主要影響因素的基礎(chǔ)上国产13页，對(duì)擁堵評(píng)價(jià)指標(biāo)和傳統(tǒng)城市交通評(píng)價(jià)指標(biāo)進(jìn)行了回顧丝袜老熟女自慰网站，綜合考慮道路特征、政府決策国产一级一级一级污黄、城市居民出行感受和社會(huì)經(jīng)濟(jì)適應(yīng)性国产三级视频在线，建立了適合城市道路交通特點(diǎn)的擁堵評(píng)價(jià)指標(biāo)體系；并在分析現(xiàn)有綜合評(píng)價(jià)方法的基礎(chǔ)上热热无码，提出了"先狀態(tài)分類(lèi)后趨勢(shì)分析"的擁堵評(píng)價(jià)方法欧洲不卡毛片无码视频在线播放。

First, the traffic flow time series chaotic feature is extracted by chaos theory. pretreatment for traffic flow time series, and the wavelet neural networks model was build by this. Second, the chaotic mechanism and the chaotic probability is described. Based on chaotic learning algorithm, and the wavelet neural networks fast learning algorithm of traffic flow time series is designed based on chaotic algorithm. Last, a single-step and multi-step prediction of traffic flow chaotic time series is researched by BP neural networks, wavelet neural networks and wavelet neural networks based on chaotic algorithm. The results showed that the wavelet neural networks predictive performance is better than the BP networks and the wavelet neural networks by the simulation results and root-mean-square value.

首先，通過(guò)混沌理論提取了交通流量時(shí)間序列的混沌特征深夜免费福利，并在此基礎(chǔ)上建立了小波神經(jīng)網(wǎng)絡(luò)交通流量時(shí)間序列模型电影天堂黄色；接著，闡述了混沌學(xué)習(xí)算法的混沌機(jī)理久久机这里只有精品、混沌產(chǎn)生的概率a视频在线，設(shè)計(jì)了基于混沌算法的小波神經(jīng)網(wǎng)絡(luò)交通流量混沌時(shí)間序列快速學(xué)習(xí)算法；最后利用交通流量混沌時(shí)間序列對(duì)BP網(wǎng)絡(luò)亚洲欧洲精品国产亚洲区、非混沌算法的小波神經(jīng)網(wǎng)絡(luò)以及基于混沌算法的小波神經(jīng)網(wǎng)絡(luò)進(jìn)行了單步預(yù)測(cè)和多步預(yù)測(cè)黄片导航，并對(duì)預(yù)測(cè)結(jié)果的仿真圖和真實(shí)值與預(yù)測(cè)值的方均根進(jìn)行了比較，結(jié)果表明基于混沌學(xué)習(xí)算法的小波神經(jīng)網(wǎng)絡(luò)的預(yù)測(cè)性能明顯優(yōu)于應(yīng)用BP網(wǎng)絡(luò)和非混沌算法的小波神經(jīng)網(wǎng)絡(luò)人人操人人干啊啊啊。

Xingyi City is located at the junction of Guizhou, Yunnan and Guangxi provinces and autonomous region, connecting Yunnan in the west, Guangxi in the south, over 300km away from Guiyang and Kunming and 500km away from Nanning. It is one key city of the Nanning, Guiyang and Kunming Economic Area, the commodity distributing center and the traffic hub. After several years of construction, the modern three-dimensional traffic net with aviation, railway, road and water carriage has been formed in Xingyi City. The convenient traffic makes Xingyi become the key traffic hub southwestward to the sea.

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An embodiment of the invention discloses a reverse power control method of an orthogonal frequency-division multiple access system including: calculating decision threshold values of each adjacent subdistrict according to the current reverse traffic channel gain of an access terminal, channel differences between each adjacent subdistrict and the resources distributed by the access terminal; and adjusting the reverse traffic channel gain value of the access terminal according to the decision threshold values of each adjacent subdistrict and using the adjusted reverse traffic channel gain values to determine the transmit power of the reverse traffic channel.

本發(fā)明實(shí)施例公開(kāi)了一種正交頻分復(fù)用多址系統(tǒng)中的反向功率控制方法，包括：根據(jù)接入終端的當(dāng)前反向業(yè)務(wù)信道增益欧洲欧美人成视频在线观看、各個(gè)相鄰小區(qū)的信道差異以及接入終端所分配的資源情況計(jì)算各個(gè)相鄰小區(qū)的判決門(mén)限值色人人操；根據(jù)所述各個(gè)相鄰小區(qū)的判決門(mén)限值調(diào)整接入終端的反向業(yè)務(wù)信道增益值，并且利用所調(diào)整的反向業(yè)務(wù)信道增益值決定反向業(yè)務(wù)信道發(fā)射功率人人操人人大爽。