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The Shadongnan structural zone in the western Bohai Sea area is located in the transitional position from the Shaleitian uplift to the Sha'nan sag. Due to the influence of various factors such as inherited uplift, syn-depositional faults and ancient valleys in different periods, the development of sedimentary facies is relatively complex, restricting the further oil and gas exploration and development. We restored the ancient landform of each three-level sequence in the Dongying formation in the sedimentary period using the strata thickness method, identifying uplifts, slopes, ancient valleys, fault troughs, and shallow and deep sub-sags in the study area. Meanwhile, there are two kinds of ancient landform in the Shadongnan structural zone bounded by the NNE-trending transform fault, with the valley-paleoslope-fault slope-break in the west and the valley-multistage fault slope-break in the east. The former is composed of eroded valleys, buried hill slopes and early syn-depositional faults, while the latter eroded valleys and two or three syn-depositional faults with the same direction and different periods. Our study showed that the valleys located at the edge of the uplifts were the source channels in the early stage and filled with sediments in the late stage. The distribution and filling of the sedimentary system of the valley-paleoslope-fault slope-break were mainly controlled by the ancient slope-fault slopes, and the syn-depositional faults controlling the fault slopes were relatively active in the Shahejie formation and controlled the deposition and filling of the lowstand fans and turbidite fans. By the SQ-Ed3 period, the fault activities gradually weakened, and the fault slope-break distinct the fan delta plain and front in SQ-Ed3 from the deposition of the braided river delta front and shallow lake in SQ-Ed2d and SQ-Ed2u. The Shadongnan No.1 syn-depositional fault with the valley-multistage fault slope-break, which was developed and activated in SQ-Ed3, controlled the formation of the deep sub-sags and the development of the small fan deltas under the first slope break. The Sha'nan syn-depositional fault both formed and activated in SQ-Ed2d was acted as the second slope break separating the bulges and slopes, and controlled the depositional filling of the small fan delta in SQ-Ed2d.

In order to study the stability of cefuroxime axetil acetone solution, by using high-performance liquid chromatography, the single factor test was conducted to study the variation ofcefuroxime axetilcontent in the solution with time under different conditions such as the initial solution pH, temperature and oxidant species. The chemical reaction kinetics method was used to establish the degradation reaction kinetics models of cefuroxime axetil under different conditions. The model parameters were obtained by regression, and the half-life(t1/2) was predicted. The degradation mechanism of cefuroxime axetil was analyzed from the molecular scale by Materials Studio simulation software. The results show that the degradation of cefuroxime axetil acetone solution under the above conditions is in line with the first-order reaction kinetics. When pH is lower than 9.54, cefuroxime axetil acetone solution is basically stable. When pH is higher than 9.54, the chemical stability of cefuroxime axetil acetone solution becomes worse, the degradation rate increases rapidly, and the color of the solution becomes darker with the increase of pH value. The chemical stability of cefuroxime axetil acetone solution decreases with the increase of temperature. The research result provides data support for production process, crystallization process design, storage and application.

A new structure of underactuated manipulator is proposed to meet the need of multi-functional end fixture of robot. The most innovative point of the manipulator is that its end knuckle is completely passive envelope， which improves the grasping stability. The grasping attitude analysis and stability analysis are carried out， the feasibility of the scheme is verified， and the grasping attitude of different objects is verified. The prospect of the control strategy research is put forward.

According to the requirement of the key technology research mission of on-orbit assembly space telescope and in order to implement the on-orbit assembly service effectively，the ground verification scheme of the on-orbit assembly robot and sub-mirror assembly sub-system is designed，the end grab mechanism of the assembly robot is designed and analyzed. The scheme of inserting grasp and expanding lock is adopted in the grasp mechanism，and the control system of the assembly robot is also described. After the calculation and analysis，this design can meet the application requirements of the on-orbit assembly space telescope during the ground verification phase.

In view of problems of fuzziness and uncertainty of output signal of gas sensor used in coal mine, the paper proposed a design scheme of gas monitoring system based on BP network and D-S evidence theory. The system uses improved BP algorithm to get basic probability assignment of underground environment and uses D-S evidence theory to fusion information of output of BP network, so as to make judgment and decision of underground gas state. The experiment result showed that the system improves accuracy of monitored gas information and rapidity of decision.