Features and innovations in this study:(1) Longest successive time scale of Precambrian samples is studied;(2) The environmental and biological significances of the difference between . the carbon isotopic compositions of kerogen and coexisted carbonate were discoved;(3) The difference of biogeochemical processes between Proterozoic closed and open sea system was considered in the disccussion;(5) It is first time to carry out the chemolysis and thermolysis of kerogen in Precambrian organic matter research.(6) It is first time to apply molecular organic geochemical data to the reconstruction of Proterozoic Rodinia Supercontinent.

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Results Punctiform erosion, hemorrhage were observed by nake eyes in each groups. Epithelium cellular necrosis, defluxion, neutrophil being dominant in propria lamina and intact glandular were observed with microscopy. The erosion became severe with the successive stimulate of ethanol. There is no difference between distillate spirit and sodium chloride rats in Guth in 7th day, but Guth in distillate spirit rats was higher than that in sodium chloride rats in 30th day. PGE2, TGF-α contents in gastric mucosa of treated group increased significangly compared with control group. PGE2 showed no difference between each group in 7th and 30th day; TGF-α in gastric mucosa of distillate spirit and sodium chloride rats decreased after 1 month.

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To solve the optimization problems, apply the DCA （difference of convex functions algori-thms） which is a general framework for nonconvex continuous optimization. This leads to a successive linear programming algorithm with finite convergence.

為解決優(yōu)化問題，應(yīng)用了突函數(shù)差異算法（difference of convex functions algorithms97热在线视频免费播放器，DCA）這一進行非突連續(xù)優(yōu)化的通用框架亚洲综合18，致使連續(xù)線性規(guī)劃算法有限收斂。

successive differential coefficient：逐次微分系數(shù)

逐次差分;遞差 successive difference | 逐次微分系數(shù) successive differential coefficient | 逐次微分 successive differentiation

successive difference：逐次差分, 遞差

sphere riser 球狀冒口 | successive difference 逐次差分, 遞差 | baby compass 小羅盤

successive difference：逐次差分

successive block overrelaxation 逐次塊超松弛 | successive difference 逐次差分 | successive differentiation 逐次微分