Cotton computer simulated model and specialist systematic study prospect 棉花計(jì)算機(jī)模擬模型及專家系統(tǒng)研究的展望
Some ideas are put forward in this artical according to the practice of foreign scholars building cotton computer simulated model and the complex nature of planting system . planting form and region nature in our country cotton produce 本文根據(jù)國外學(xué)者構(gòu)建棉花計(jì)算機(jī)模擬模型的實(shí)踐,結(jié)合我國棉花生產(chǎn)在種植制度,種植方式及地域性等方面的復(fù)雜性,提出了一些見解,同時(shí)對(duì)專家系統(tǒng)研究構(gòu)建提出了思路。
After organizing the dynamo program , simulating the sd model , it has get the result that the using dimension area of soil is 5 . 72 104hm2 in the 30 years and the relation of the irrigating water volume for farmland , forest - sod land , the ecological water volume , other using water volume and the using area of soil 用dynamo語言編程,借助于計(jì)算機(jī)模擬模型,對(duì)綠洲sd模型進(jìn)行運(yùn)算,求解得出額濟(jì)納綠洲未來30年土地開發(fā)規(guī)模為5 . 72 10 ~ 4hm ~ 2 ,并計(jì)算出相應(yīng)農(nóng)田灌溉用水量、林草灌溉用水量、生態(tài)用水量,以及各類用水量與土地開發(fā)規(guī)模的關(guān)系。
American multipurpose river basin simulation model mitsim is used for reference . to a certain extent the model is a computer model in common use . it is suitable for chinese standard with " date driving , module assembling , menu operating " . this model consist of three parties as follows : 1 . river simulation model 本項(xiàng)研究結(jié)合松遼流域北水南調(diào)工程水資源系統(tǒng),在參考美國麻省理工學(xué)院研制的多目標(biāo)多用途水文經(jīng)濟(jì)模擬模型mitsim的基礎(chǔ)上,建立了一個(gè)具有較強(qiáng)通用性、適合我國規(guī)范的、采用數(shù)據(jù)驅(qū)動(dòng)、模塊組合、結(jié)構(gòu)化設(shè)計(jì)、菜單式操作的計(jì)算機(jī)模擬模型。
On the basis of analyzing the structure mechanism , the device models are set up and the device characteristics are simulated by medici and the optimal design to three key parameters including the thickness of sige layer , the percentage of ge in sige layer and the thickness of n " layer is carried out 在分析器件結(jié)構(gòu)機(jī)理的基礎(chǔ)上,建立了該器件的計(jì)算機(jī)模擬模型并用medici模擬了該器件的靜態(tài)特性、動(dòng)態(tài)特性和溫度特性,并針對(duì)sige層厚度、 sige層中g(shù)e的摩爾含量以及n ~ -區(qū)厚度等關(guān)鍵參數(shù)進(jìn)行了優(yōu)化設(shè)計(jì)。
Abstract : the study on escape behavior in disaster is helpful not only to designing the construction of buildings , and to disposing the things involved , but also can improve the consciousness on disaster reduction of the commen people . considering the disaster expriment being dangerous and escape behavior generally not being repeatable , computer simulation models which is probably the most proper approach for studing are developed to explore the regulation of escape behavior . this paper introduces the principles of model development , components and some primary assumptions of the model . in addition , it presents a realizing way in computer , which will be the base for further case studies 文摘:災(zāi)害避難行為的研究,不僅直接有助于建筑物內(nèi)部構(gòu)造的設(shè)計(jì)、物件的布局、避難誘導(dǎo)裝置的設(shè)計(jì),而且也是加強(qiáng)市民減災(zāi)意識(shí)培養(yǎng)的基礎(chǔ).考慮到災(zāi)害實(shí)驗(yàn)的危險(xiǎn)性和避難行為的不可重復(fù)性,建立計(jì)算機(jī)模擬模型來探求避難行為的規(guī)律,已成為對(duì)其進(jìn)行研究的最佳途徑.本文重點(diǎn)介紹了避難行為模擬模型建立的原則、模型的構(gòu)成、基本假設(shè),并給出了計(jì)算機(jī)實(shí)現(xiàn)的途徑,為進(jìn)一步的實(shí)例研究創(chuàng)造條件