It becomes an important operation significance to study the non - linear input - output model , because the economic system obviously shows the non - linear character 摘要經(jīng)濟(jì)系統(tǒng)時(shí)常表現(xiàn)明顯的非線性特征,研究非線性投入產(chǎn)出具有重要的現(xiàn)實(shí)意義。
Relations of factors in port system are nonlinear . classed forecast method is difficult using nonlinear system ; while ann ' s excellent non - linear character is applicable to the system 港口物流系統(tǒng)中各因素之間的關(guān)系大多是非線性的,經(jīng)典的預(yù)測(cè)方法用于非線性系統(tǒng)預(yù)測(cè)有一定的困難,而神經(jīng)網(wǎng)絡(luò)具有優(yōu)良的非線性特性,適用于非線性系統(tǒng)的處理。
Since most of the general predicting methods are based on linear analysis , when it comes to non - linear cases they met many difficulties , while ann is competent for non - linear proceeding for its excellent non - linear character 經(jīng)典的預(yù)測(cè)方法用于非線性系統(tǒng)預(yù)測(cè)有一定困難。而神經(jīng)網(wǎng)絡(luò)具有優(yōu)良的非線性特性,特別適用于高度非線性系統(tǒng)的處理。
According to the non - linear character of voltage signal during aluminum alloy spot welding , the nugget quality is quantitatively described by using the box counting dimension as the characteristic parameter for the first time 摘要針對(duì)鋁合金點(diǎn)焊過(guò)程中電壓信號(hào)的非線性特點(diǎn),從分形理論出發(fā),首次嘗試?yán)煤芯S數(shù)作為特征量對(duì)點(diǎn)焊質(zhì)量進(jìn)行定量描述。
In practical projects , the boundary shape irregularity of the lake , reservoir , river and estuary area and the non - linear character of hydrodynamic equation make it difficult to get the theoretical solution of the equation , so the numerical solution has to be the only a choice 由于實(shí)際工程中湖泊、水庫(kù)、河流、河口區(qū)域邊界幾何形狀的不規(guī)則,以及水動(dòng)力學(xué)方程的非線性性質(zhì),使得理論分析解難以作出,只能求助于數(shù)值解。