Fuzzy analog method of reliability evaluation of existing reinforced concrete bridge 在役混凝土橋梁結(jié)構(gòu)可靠度評(píng)估的模糊類比法
Firstly , by analyzing the mathematic model of road resistance , dynamics modele of electric bicycle is founded . secondly , the measure and analog methods of road resistance of electric bicycle are introduced 通過(guò)分析電動(dòng)自行車路面行駛阻力,推導(dǎo)出了電動(dòng)自行車的動(dòng)力學(xué)模型,進(jìn)而論證了在測(cè)試平臺(tái)上模擬實(shí)際路面行駛的可行性。
In the field of traditional power line carrier ( plc ) communications , the modulation - demodulation cells of plc were implemented in means of analog method . the traditional plc systems can ’ t catch up with the market demands for higher communication quality 在傳統(tǒng)的電力線載波通信領(lǐng)域,電力線載波機(jī)的調(diào)制解調(diào)單元都是用模擬器件實(shí)現(xiàn)的,這種傳統(tǒng)的載波機(jī)已不能完全滿足現(xiàn)有市場(chǎng)對(duì)通信質(zhì)量的要求。
The jitter measuring methods including digital method and analog method are analyzed . their advantages and disadvantages are compared . some standards of international telecomunication union ( itu ) about jitter measuring are presented 本文介紹了抖動(dòng)的概念及其對(duì)數(shù)字系統(tǒng)的影響,分析了測(cè)試抖動(dòng)的數(shù)字方法和模擬方法的優(yōu)缺點(diǎn),介紹了測(cè)試抖動(dòng)的一些國(guó)際標(biāo)準(zhǔn),主要是國(guó)際電信聯(lián)盟( itu )的一些標(biāo)準(zhǔn)。
The coriolis mass flowmeter ( cmf ) is widely used in industries , because it has many advantages - high measurement accuracy , being able to measure fluid mass flow directly and measure various parameters of fluid , etc . originally analog signal processing methods are used for cmf , but some companies and institutes devote themselves to digital signal processing methods because they have many advantages over analog methods 科里奧利質(zhì)量流量計(jì)由于其精度高、測(cè)量流體范圍廣、可做多參數(shù)測(cè)量等優(yōu)點(diǎn),在工業(yè)上獲得了廣泛的運(yùn)用。原來(lái)的科氏流量計(jì)的信號(hào)處理主要是采用模擬電路,由于模擬信號(hào)處理系統(tǒng)存在很多缺點(diǎn),越來(lái)越多的公司和研究機(jī)構(gòu)都投入大量的人力物力來(lái)研究數(shù)字信號(hào)處理方法和系統(tǒng)。