W940963 伊比利亚半岛中央地区不同寄主植株上越冬禾答类蚜虫的虫口动态[刊,西]/Fereres,A.…//Investigacion Agraria,Produccion y ProteccionVegetales.-1990,5(3).-447～462[WBTA,1993,10(2),1638]W940964 爱达荷州西南部侵害春小...W940963 伊比利亚半岛中央地区不同寄主植株上越冬禾答类蚜虫的虫口动态[刊,西]/Fereres,A.…//Investigacion Agraria,Produccion y ProteccionVegetales.-1990,5(3).-447～462[WBTA,1993,10(2),1638]W940964 爱达荷州西南部侵害春小麦的四种禾谷类蚜虫的空间分布及抽样方案[刊,英]/Feng,M.G.…//Journal of Economic Entomology.-1992,85(3).-830～837[WBTA,1993,10(2),1367]W940965展开更多
A total of 144 F2 individuals were obtained from the crossing between 1047 (susceptible) and A21 (resistant). Two RAPD markers were screened out in 200 random primers using BSA(Bulked Segregant Analysis). Two RAPD mar...A total of 144 F2 individuals were obtained from the crossing between 1047 (susceptible) and A21 (resistant). Two RAPD markers were screened out in 200 random primers using BSA(Bulked Segregant Analysis). Two RAPD markers, designated as AG13/2000 and U16/660, were 7.7 cM and 8.38 cM apart from the TuMV resistant gene, respectively. The two RAPD fragments were converted to SCAR markers. SCAR markers were confined in germplasm.展开更多
The fatigue behavior, indirect tensile strength （ITS） and resilient modulus test results for warm mix asphalt （WMA） as well as hot mix asphalt （HMA） at different ageing levels were evaluated. Laboratory-prepared...The fatigue behavior, indirect tensile strength （ITS） and resilient modulus test results for warm mix asphalt （WMA） as well as hot mix asphalt （HMA） at different ageing levels were evaluated. Laboratory-prepared samples were aged artificially in the oven to simulate short-term and long term ageing in accordance with AASHTO R30 and then compared with unaged specimens. Beam fatigue testing was performed using beam specimens at 25 ℃ based on AASHTO T321 standard. Fatigue life, bending stiffness and dissipated energy for both unaged and aged mixtures were calculated using four-point beam fatigue test results. Three-point bending tests were performed using semi-circular bend （SCB） specimens at -10 ℃ and the critical mode I stress intensity factor K1 was then calculated using the peak load obtained from the load-displacement curve. It is observed that Sasobit and Rheofalt warm mix asphalt additives have a significant effect on indirect tensile strength, resilient modulus, fatigue behavior and stress intensity factor of aged and unaged mixtures.展开更多
文摘W940963 伊比利亚半岛中央地区不同寄主植株上越冬禾答类蚜虫的虫口动态[刊,西]/Fereres,A.…//Investigacion Agraria,Produccion y ProteccionVegetales.-1990,5(3).-447～462[WBTA,1993,10(2),1638]W940964 爱达荷州西南部侵害春小麦的四种禾谷类蚜虫的空间分布及抽样方案[刊,英]/Feng,M.G.…//Journal of Economic Entomology.-1992,85(3).-830～837[WBTA,1993,10(2),1367]W940965
文摘A total of 144 F2 individuals were obtained from the crossing between 1047 (susceptible) and A21 (resistant). Two RAPD markers were screened out in 200 random primers using BSA(Bulked Segregant Analysis). Two RAPD markers, designated as AG13/2000 and U16/660, were 7.7 cM and 8.38 cM apart from the TuMV resistant gene, respectively. The two RAPD fragments were converted to SCAR markers. SCAR markers were confined in germplasm.
文摘The fatigue behavior, indirect tensile strength （ITS） and resilient modulus test results for warm mix asphalt （WMA） as well as hot mix asphalt （HMA） at different ageing levels were evaluated. Laboratory-prepared samples were aged artificially in the oven to simulate short-term and long term ageing in accordance with AASHTO R30 and then compared with unaged specimens. Beam fatigue testing was performed using beam specimens at 25 ℃ based on AASHTO T321 standard. Fatigue life, bending stiffness and dissipated energy for both unaged and aged mixtures were calculated using four-point beam fatigue test results. Three-point bending tests were performed using semi-circular bend （SCB） specimens at -10 ℃ and the critical mode I stress intensity factor K1 was then calculated using the peak load obtained from the load-displacement curve. It is observed that Sasobit and Rheofalt warm mix asphalt additives have a significant effect on indirect tensile strength, resilient modulus, fatigue behavior and stress intensity factor of aged and unaged mixtures.
