Determination of compaction model of loess surrounding the compaction pile in loess region 黃土地區(qū)擠密樁樁周土體擠密模型的確定
A determination on the mathematical model of bearing noise by vibration of its structure 軸承結(jié)構(gòu)引起的固有振動(dòng)所產(chǎn)生的噪聲數(shù)學(xué)模型的確定
This article introduces the structural lectotype , determination of computer model and structure of the science hall 該文介紹了中國地質(zhì)大學(xué)(武漢)科技館結(jié)構(gòu)選型,計(jì)算模型的確定及構(gòu)造措施。
3 . the calculating elements and the calculating model of rib - column , rib - beam and retaining plate of the supporting structure are proposed in this paper 3 、提出了肋柱、肋梁和擋土板的計(jì)算單元?jiǎng)澐忠约坝?jì)算模型的確定方法。
( 4 ) using the numerical method of finite element to simulate the loading progress of gfrp rods reinforced polymer concrete beam , the result show that the material model and constitutive relation play an important role in receive a accurate solution ( 4 )利用有限元數(shù)值方法模擬玻璃鋼筋樹脂混凝土梁加載的過程,計(jì)算表明樹脂混凝土材料模型的確定以及本構(gòu)關(guān)系的選擇是模擬精度的關(guān)鍵。
And in system software part , and give out maths modeland procedure , main procedure flow chart ; and detailed expatiate sub procedure , break off procedure ; moreover introduced the plc " programe software of step7 - mcro / win 在系統(tǒng)軟件結(jié)構(gòu)部分詳細(xì)介紹了控制系統(tǒng)各環(huán)節(jié)數(shù)學(xué)模型的確定,控制算法的確定與實(shí)現(xiàn),以及系統(tǒng)軟件設(shè)計(jì)的主程序流程圖,并詳細(xì)介紹了具有代表特色的子程序、中斷程序,另外還介紹了plc編程軟件step7 - mcro win 。
By programming transition process of one - order inertial system , designing rationality in the whole process of the set value changing and introducing assistant application of the derivative signal , the implementation of control target was carried into the programmed process control and made the control key to transit from confirming system model to roughly estimating the time constant of system , and the control effect was improved evidently 通過一階慣性規(guī)劃過渡過程,設(shè)計(jì)設(shè)定值變化的全程合理性和引入微分信號(hào)的輔助應(yīng)用,將控制目標(biāo)的實(shí)現(xiàn)落實(shí)在規(guī)劃的過程控制之中,使控制關(guān)鍵由原來對系統(tǒng)模型的確定過渡到對系統(tǒng)時(shí)間常數(shù)的粗略估計(jì),顯著地改進(jìn)了控制效果。
We discovered that the company financing choice is positively related to the degree of product competition . according to above preliminary judgment , take the shanghai stock market for example , we use variable intercept penal data model to carry the real empirical analysis on listed - company from 1998 year to 2004 year in shanghai stock market . we concluded that the degree of product market is indeed to be able to affect the company financing choice , and the more intensity degree of product market competition , the more high debt rate 根據(jù)1998年至2004年我國深滬兩市a股上市公司的財(cái)務(wù)報(bào)表數(shù)據(jù),本文對我國上市公司的行業(yè)競爭狀況和上市公司融資結(jié)構(gòu)特征進(jìn)行了描述性統(tǒng)計(jì),發(fā)現(xiàn)行業(yè)競爭強(qiáng)度與公司融資選擇之間存在正相關(guān)的趨勢;根據(jù)這一初步判斷,本文利用面板數(shù)據(jù)模型的確定效應(yīng)變截距模型對1998年至2004年我國滬市a股上市公司進(jìn)行了實(shí)證分析,得出了我國上市公司所面臨的產(chǎn)品市場競爭強(qiáng)度的確會(huì)影響到上市公司融資結(jié)構(gòu)的選擇,并且上市公司所面臨的產(chǎn)品市場競爭越激烈,其負(fù)債水平就越高的結(jié)論。
This paper determines comprehensive evaluation system , evaluation methods and evaluation model ; contrasts the market environment for provinces and regions ; analyzes the market situation of agricultural products for fitting modern agricultural development ; gives proposals to accelerate the construction of market environment and promote development modern agriculture and so on 本文就有關(guān)市場環(huán)境評(píng)價(jià)的評(píng)價(jià)方法、指標(biāo)體系和評(píng)價(jià)模型的確定,全國及其各區(qū)域、省份的市場環(huán)境狀況對比,農(nóng)產(chǎn)品市場適應(yīng)現(xiàn)代農(nóng)業(yè)發(fā)展的形勢判斷,加快市場環(huán)境建設(shè)、促進(jìn)現(xiàn)代農(nóng)業(yè)發(fā)展等方面進(jìn)行了全面的論證。