in the paper, on the basic of a mature analysis theory of slope reliability, study on the combination of security coefficient implicit function and transient surface method is carried through 本文以現(xiàn)已成熟的邊坡穩(wěn)定性分析理論為基礎(chǔ),對穩(wěn)定性系數(shù)隱式方程和響應(yīng)面法結(jié)合進行了研究。
through defining the security coefficient s, three kinds of vertex immunization strategies are studied : the vertex degree-first immunization strategy, the vertex betweenness-first immunization strategy and the edge betweenness-first immunization strategy 摘要通過定義網(wǎng)絡(luò)的安全系數(shù)s,研究了控制計算機網(wǎng)絡(luò)病毒傳播的度優(yōu)先免疫、節(jié)點介數(shù)優(yōu)先免疫和邊介數(shù)優(yōu)先免疫這3種不同的節(jié)點優(yōu)先免疫病毒控制策略。
about the food security evaluation method, this thesis compared and analyzed the rate of grain-production trend evaluation method, the grain supply and demand early warning system evaluation method, the boomy analytic method and food security coefficient synthetic evaluation method 浙江大學(xué)博士學(xué)位論文自給自足、自力更生與合作安全?中國糧食問題分析框架在糧食安全評價方法方面,本文分析比較了糧食趨勢產(chǎn)量增長率評價法、糧食供求預(yù)警系統(tǒng)評價法、景氣分析法和糧食安全系數(shù)綜合評價法。