A method of estimating the critical rate of temperature increase of thermal explosion for the first orderautocatalytic decomposition reaction system using non-isothermal DSC is presented. Information is obtained on th...A method of estimating the critical rate of temperature increase of thermal explosion for the first orderautocatalytic decomposition reaction system using non-isothermal DSC is presented. Information is obtained on theincreasing rate of temperature in nitrocellulose containing 13.54% of nitrogen when the first order autocatalytic decomposition converts into thermal explosion.展开更多
The quantitative analysis of uplift process of the Qinghai—Tibet plateau is a key to deepen the study of uplift mechanism and dynamic model, for this, numerical simulate was done to the whole process of uplift of the...The quantitative analysis of uplift process of the Qinghai—Tibet plateau is a key to deepen the study of uplift mechanism and dynamic model, for this, numerical simulate was done to the whole process of uplift of the Qinghai—Tibet plateau.1 Geological model According to the tectonic evolution and lithospheric structure, continental crust in the Qinghai—Tibet plateau in profile is divided into sedimentary cover, crystalline rock formation and lower crust and composed of Kunlun, Bayan Har, Qiangtang, Gangdise and Himalaya blocks on the plane. Layer or block is bounded the detachment layer or large fault. On the basis of the uplift characteristics, the calculated time limit is in the Cenozoic since 65Ma, roughly four stages, i.e., 65 to 40Ma, 40 to 20Ma, 20 to 3Ma and 3Ma to now. Mesh profile used Yadong—Golmud Geoscience transect.展开更多
在白背飞虱(Sogatella furcifera(Hovàrth))卵内,稻虱缨小蜂(Anagrus nilparvatae Pang et Wang)的发育起点温度为10.6℃,有效积温为162.3日度,随着温度上升,发育加快;寿命(y_1,D_(10.4)~0C)、产卵量(y_2,粒/♀)、产出卵率则在适...在白背飞虱(Sogatella furcifera(Hovàrth))卵内,稻虱缨小蜂(Anagrus nilparvatae Pang et Wang)的发育起点温度为10.6℃,有效积温为162.3日度,随着温度上升,发育加快;寿命(y_1,D_(10.4)~0C)、产卵量(y_2,粒/♀)、产出卵率则在适宜温度范围(23—26℃)内最大,高低温区内均呈下降趋势,其方程分别为:y_1=exp(-0.04187+0.3612x-7.4654×10^(-3)x^2),y_2=exp(-1.9539+0.4563x-0.01001x^2),式中x为温度。温度对未产出卵量影响不显著;对子代雌性比的影响也不显著,其平均值为0.7631。温度主要通过对产卵量和产卵速率来影响繁殖力,理论上27.3℃时周限增长率λ最大,达1.2374倍/天。成虫期供蜜加水时的产卵量、产出卵率和寿命显著比仅供水时的高或长。此研究为预测害虫种群发展,充分利用天敌资源,达到综合管理害虫提供了科学依据。展开更多
文摘A method of estimating the critical rate of temperature increase of thermal explosion for the first orderautocatalytic decomposition reaction system using non-isothermal DSC is presented. Information is obtained on theincreasing rate of temperature in nitrocellulose containing 13.54% of nitrogen when the first order autocatalytic decomposition converts into thermal explosion.
文摘The quantitative analysis of uplift process of the Qinghai—Tibet plateau is a key to deepen the study of uplift mechanism and dynamic model, for this, numerical simulate was done to the whole process of uplift of the Qinghai—Tibet plateau.1 Geological model According to the tectonic evolution and lithospheric structure, continental crust in the Qinghai—Tibet plateau in profile is divided into sedimentary cover, crystalline rock formation and lower crust and composed of Kunlun, Bayan Har, Qiangtang, Gangdise and Himalaya blocks on the plane. Layer or block is bounded the detachment layer or large fault. On the basis of the uplift characteristics, the calculated time limit is in the Cenozoic since 65Ma, roughly four stages, i.e., 65 to 40Ma, 40 to 20Ma, 20 to 3Ma and 3Ma to now. Mesh profile used Yadong—Golmud Geoscience transect.
文摘在白背飞虱(Sogatella furcifera(Hovàrth))卵内,稻虱缨小蜂(Anagrus nilparvatae Pang et Wang)的发育起点温度为10.6℃,有效积温为162.3日度,随着温度上升,发育加快;寿命(y_1,D_(10.4)~0C)、产卵量(y_2,粒/♀)、产出卵率则在适宜温度范围(23—26℃)内最大,高低温区内均呈下降趋势,其方程分别为:y_1=exp(-0.04187+0.3612x-7.4654×10^(-3)x^2),y_2=exp(-1.9539+0.4563x-0.01001x^2),式中x为温度。温度对未产出卵量影响不显著;对子代雌性比的影响也不显著,其平均值为0.7631。温度主要通过对产卵量和产卵速率来影响繁殖力,理论上27.3℃时周限增长率λ最大,达1.2374倍/天。成虫期供蜜加水时的产卵量、产出卵率和寿命显著比仅供水时的高或长。此研究为预测害虫种群发展,充分利用天敌资源,达到综合管理害虫提供了科学依据。
