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To investigate the effects of Ginkgo biloba extract (GbE) on the activities of energy metabolism enzymes and contraction capacity of diaphragm from type 2 diabetic rats. Forty SD mile rats were randomly divided into normal control group (n=10) and model group (n=30). Type 2 diabetes models were induced by feeding with high-sucrose-high-fat diet and intraperitoneal injecting 25mg/kg streptozotocin. 20 successful models were rearranged to two groups: diabetic group and GbE treatment group, 10 rats in each. Then the saline and 8mg·kg-1·d-1 of GbE were respectively intraperitoneal injected, once a day continuously for 8 weeks. Then diaphragm contractility was assessed using Peak twitch tension (Pt), Maximum tetanic tension (P0) and fatigue index (FI) in vitro diaphragm strip preparations. Cytochrome oxidase (CCO), lactate dehydrogenase (LDH) and succinate dehydrogenase (SDH) in diaphragm were detected and the varieties of diaphragm ultrastructure were observed. Compared with control group, Pt, P0 and FI in diabetic group decreased significantly (P < 0.01); the activity of CCO, LDH and SDH in the tissues was obviously reduced than those in control group (P < 0.01). The ultrastructure in diabetic group under electron microscope indicated that diaphragm mitochondrions swelled and degenerated. The above changes were inhibited by GbE. GbE can enhance contraction capacity of diaphragm from type 2 diabetic rats by increasing the aerobic oxidation capacity, glycolytic capacity and the function of respiratory chain.

Type 2 diabetes was induced by feeding with high-sucrose-high-fat diet and injecting 25mg/kg streptozotocin. Rats were randomly divided into three groups: control, diabetic, diabetic simultaneously injected ip with Ginkgo biloba extract (EGb) for 8 wk. The treatment of EGb attenuated the development of hyperglycemia and hyperinsulinemia in type 2 diabetic rats. The serum levels of cholesterol, triglyceride as well as the activities of alanine aminotransferase, aspartate aminotransferase were significantly decreases in EGb-treated rats. The level of malondialdehyde were significantly increased in diabetic rats and decreased after EGb administration. Moreover, EGb markedly increased the activities of superoxide dismutase, catalase and glutathione peroxidase in liver. The results indicate that EGb has a protective effect on liver of type 2 diabetic rats, which may be related to decreases the accumulation of cholesterol, triglyceride in liver and its antioxidant property.

Due to the lack of money and information asymmetry, the energy-saving benefit of social security houses has been ignored in some regions. According to the Economic Evaluation Method and Parameters of Construction Projects (III), this paper has a discussion on the energy-saving security rooms from perspectives of financial benefit, national economic benefit and social benefit. The results show that there is a phenomenon of “market failure” in the field of energy-saving social security houses，and then the authors put forward to some suggestions for government.

Hydraulic system is consists of mechanical, hydraulic and electrical devices. Therefore, hydraulic system malfunction are a lot of types. Based on the complexity and all-around of hydraulic system malfunction, it is very difficult to solve the hydraulic system malfunction. Hence how to quickly and accurately identify the mechanical is the forefront of current research projects. With the rapid development of computer communication technology, computer-aided diagnosis technology can solve the problem of fault diagnosis of hydraulic systems. In order to solve the hydraulic station mechanical, according to the existing hydraulic system failure analysis, it makes visual dynamic diagnosis. In this paper, the visual dynamic diagnostic technology is introduced, which works in the technical feasibility and tastes its convenience and practicality in the actual practice.