Aiming at the problems that cuckoo algorithm's local search ability is weak, combining cuckoo search algorithm with simulated annealing algorithm, by dynamically adjusting the detection probability and step size, an adaptive hybrid cuckoo algorithm is proposed. Simulation results show that the improved self-adaptive hybrid cuckoo search algorithm can search global optimization more quickly and precisely. This new algorithm is introduced to the bus dispatching.Feasibility is verified by an example,which provides a new way for optimal scheduling model of the bus company.

Customized bus is a new type of transportation tool, the pricing strategy has important significance to improve the city traffic. Based on the urban traffic network which includes cars, buses, customized city bus, the bi-level programming model is established to study customized bus pricing problem. The upper model is constructed with the objective of maximizing enterprise profit and system optimization, and the lower model is the equivalent of the multimode stochastic user equilibrium model. Genetic algorithm(GA) and sequential quadratic programming (SQP) algorithm are used to determine a optimal model. To verify the applicability of the model, a simple road network is built as an example. The results show that compared with the existing system, the optimal pricing strategy aimed enterprise profit maximization can improve corporate earnings, but add the system total cost and reduce the bus share rate.

Semantic information integrated with syntactic analysis was used for extracting the Tibetan language information.Using the method of semantic role tagging on the basis of the Tibetan phrase syntactic treebank and the information of event triggering words, the information of Tibetan language is extracted. Through comparative analysis of experiments, It is shown that the fusion of event feature and tagged information help Tibetan language information extraction, and the given model can be well applied to Tibetan information extraction.

A reversible information hiding method based on multiple prediction values is proposed in this paper. Multiple Predictors are firstly applied to predict a pixel value. The indexes of maximum prediction value and minimum prediction value are thus determined. Then,the relationship among maximum prediction value,minimum prediction value and current pixel value is used for classification. If the maximum prediction value is equal to the minimum prediction value,the optimal prediction value is the minimum prediction value. If the current pixel value is equal to or greater than maximum prediction value,the optimal prediction value is the maximum prediction value. If the current pixel value is equal to or less than minimum prediction value,the optimal prediction value is the minimum prediction value. Finally,the difference value between the current pixel value and the optimal prediction value is calculated and the corresponding different value is selected for data hiding. The method can extract secret information accurately and recover the original image without loss of information. The stego-image has good visual quality.

A remote sensing image fusion method based on super-resolution reconstruction with convolutional neural network (CNN) is proposed to make full use of spatial information of multispectral image and obtain better fusion quality. Firstly,the mulispectral image is transformed with IHS transform,the gotten I component is reconstructed by Super-Resolution Convolutional Neural Network(SRCNN), which enhances the spatial information while expanding its size. Then the panchromatic image and the reconstructed I component of mulispectral image are fused with the fusion method based on wavelet transform,the fusion rule is the absolute value and the changed high frequency components of the fusion image are all derived from the panchromatic image in the traditional algorithms. Finally, the fused multispectral image is obtained via inverse IHS transform.The experiment results show that the algorithm outperforms other algorithms, and reduces the loss of spatial information and spectral information in the process of image fusion effectively.

In order to reduce power loss of power amplifier(PA), and to improve the working efficiency and the gain of power amplifier, a kind of E power amplifier with high efficiency and high gain is proposed, combining with two-stage amplification and feedback. And the power amplifier is analyzed and verified by Cadence software. The simulation results show that under the condition of 180 nm CMOS, and when power supply voltage is 3.6 V and circuit frequency is 8.9 GHz, the output power of this class-E power amplifier will be 23.5 dBm, the gain is 24 dB and the power added efficiency is 21%. Compared with traditional PA, the power amplifier proposed in this paper has been improved in gain and power additive efficiency, which is suitable for communication, electronic measurement and so on.

The stability of inductive load in distributed generation system is studied. Firstly, the novel mathematical model with a coupled system is established, where the permanent magnet synchronous motor (PMSM) is regarded as a practical inductive load and the second order Kuramoto like model is considered as a node of distributed generation system. Secondly, the effect of the stability of PMSM caused by distributed generation system and the external coupling coefficient is analyzed. Finally, the results of the numerical simulation show that the value of external coupling coefficient can make the unstable chaotic PMSM transform into a stable balance point, and the larger coupling coefficient is, the faster level of stability can PMSM achieve. Hence, the results of the experiment has great significance on ensuring the stable operation of the PMSM.

In this paper, a sliding mode active disturbance rejection controller is designed based on active disturbance rejection control and sliding mode control for quadrotor unmanned aerial vehicle, which is susceptible to nonlinearity, multiple targets, limit of control and other disturbance of uncertainties. Considering the unknown attitude angle velocity of the controlled targets, the controller can observe the attitude angular velocity and unknown interference of UAV by designing the extended state observer. The estimated angular velocity is used for the feedback of controller, meanwhile the observed disturbance compensates the amount of control. Based on Lyapunov theory, the stability of the control system is proved. The simulation results show that sliding mode active disturbance rejection controller can guarantee the fast convergence of the observed error, realize the high accuracy estimation of the observed amount, and continue to keep a stable attitude control without the angular velocity feedback.

A class of SIR epidemic model with diffusion is investigated in this paper. Firstly, the stability of the equilibria of the corresponding ordinary differential equations is considered. Secondly, the stability of the steady states of the model with diffusion is considered; Finally, some simulations are carried out by using Matlab. The simulations verify the relative theoretical analysis. Both of theoretical analysis and the simulations show that the outbreak of the epidemics is inevitable.

The nano-silica particles were modified with multiple quaternary ammoniums (MQAS).The Pickering emulsions were prepared using the modified nano-silica particles as emulsifier and the effects of emulsifier concentration, temperature, pH value, and the addition of salts on the stability of Pickering emulsions were studied. The results showed that the emulsification properties become much better than those using the emulsifier of MQAS or nano-silica alone. The ratio of exudative water decreases with the increase of concentration of MQAS. Upon decreasing the pH value, the ratio of exudative water and the droplet diameter of emulsions increase, which indicates that a low pH value influences the electrostatic interactions between multiple quaternary ammoniums and nano-silica particles and thus weakens the stability of emulsions. The ratio of exudative water and the diameter of emulsion droplets also increase with an increasing concentration of NaCl, which suggests that the stability of emulsions is weakened due to the shielding effect of NaCl on the head charges of multiple quaternary ammoniums.

The surface tension curve of carboxylate Gemini surfactant (CGS-12) was measured using the platinum plate method. The effects of pH value, the addition of inorganic salts and alcohols on the surface properties of CGS-12 were investigated. In addition,the dynamic surface tension curve of CGS-12 was measured using drop volume method,and the dynamic adsorption mechanism was also explored. The results show that the cmc and γ_cmc of CGS-12 are 80 μmol/L and 26.37 mN/m, respectively. The adjustment of pH value of solution leads to a reversible change of the surface tension of CGS-12 which reaches the minimal at the pH value of 6. Increasing the concentration of NaCl, the surface tension of CGS-12 decreases first and then increases. However, the surface tension of CGS-12 undergoes an increase before reaching a plateau as the concentration of CaCl₂ is increased. The surface activity of CGS-12 increases with the increasing concentration of n-butanol. Increasing the carbon chain lengths of the alcohol, γ_cmc decreases significantly with no obvious variation for cmc. The results of the dynamic surface tension show that the adsorption at low concentration of CGS-12 is controlled by diffusion at the beginning and then a mixed kinetic-diffusion adsorption mechanism toward the end. At higher concentration of CGS-12, the adsorption process is controlled by the mixed kinetic-diffusion adsorption mechanism for the later stage although it can’t be simulated at the initial stage.

The polysaccharides were extracted by water extraction and alcohol precipitation method. Phenol sulfuric method was used for the determination of the content of polysacchrides. The monosacchride constituents of polysacchrides in the leaf of [WTBX]Cyclocarya paliurus[WTBZ] were determined by pre column derivatization HPLC. The content and composition of polysaccharides and monosaccharide from three different sources of Cyclocarya paliurus were analyzed and compared. The results displayed an average content of 4.34% for polysaccharides. The monosaccharide constituents of polysaccharides from the leaf of Cyclocarya paliurus are xylose, fructose, rhamnose, arabinose, galactose, glucose and ribose with their contents in polysaccharides being 3.04%，7.35%，8.46%，13.46%，24.32%，24.26% and 6.16%, respectively. The monosaccharide constituents and the content of polysaccharides show differences among different sources of Cyclocarya paliurus . It provides a basis for quality control and pharmacological efficacy study of Cyclocarya paliurus.

Ten compounds were isolated from a Zhuang medicine of Jasminum nervosum Lour. They were identified by physicochemical properties and spectral analyses as β-sitosterol(1),stigmasterol(2),β-daucosterol(3),oleanolic acid(4),acetyloleanolic acid(5),astaraxerol(6),betulinic acid(7),taraxerone(8),stigmasterol-3-O-β-D-glucopy-ranoside(9),2α-hydroxy-oleanolic acid(10). Compounds 5-8 and 10 were isolated from this plant for the first time.

A HPLC method was established for the determination of quercetin, kaempferol and rhamnolipid in the stem and leaf of Sedum emarginatum Migo. The optimized chromatographic conditions were phenomenon Germini C18(5 μm, 4.6 mm×250 mm)chromatographic column, methanol-0.1% phosphoric acid (55∶45) at a flow rate 1.0 mL/min of the mobile phase with a detection wavelength at 370 nm. The peak area showed good linearity with respect to the concentrations (r>0.999). The RSD of the precision test,repeatability test and stability test were all less than 3%, and the average recovery rates were 97.8%～99.1%.The method was precise,reproducible and stable,which can be applied in the quality control of Sedum emarginatum Migo.

After de-fatted by petroleum ether, the residue of drying powder of ginkgo biloba L. shell was extracted using distilled water as the solvent. The extracting parameters, including solid-liquid ratio, extraction temperature and extraction time, were investigated with the designed single factor and orthogonal test method. The optimized extraction conditions were determined to be a solid to liquid ratio of 1∶25 with the extraction temperature at 80 ℃ and an extracting duration of 1 h. The polysaccharide extraction rate under these conditions reaches 89.74%. Moreover, the scavenging capacities of polysaccharide and polyphenol from the ginkgo shell on DPPH, ·OH, O^-₂· and ABTS⁺· were assayed. The results showed that the polysaccharide has scavenging effect on DPPH, O^-₂·and ABTS⁺·. The polyphenol has very strong scavenging effect on O^-₂·, DPPH and ABTS⁺·, with IC₅₀ values of 0.35, 0.10 and 0.78 g/L, respectively. It revealed that the polyphenol from the ginkgo shell is a promising natural antioxidants.

To investigate the genus of Pseudecheneis in China, the details of the species composition and distribution area of this genus are introduced in this paper. Combining historical literatures and investigation results of authors, the adaptive relationship between the morphology and habitat of Pseudecheneis fish is scientifically interpreted, and their population distribution features, origin and life characteristics are objectively expatiated. Meanwhile the threat factors affecting resources conservation of rheophilic catfishes are discussed. The authorts considered that the main threat factors are soil erosion, water pollution, water conservancy project, invasive species, overfishing and so on. Finally, the corresponding protective methods and suggestions are proposed. A river fish fauna has its historical origin with each species being a part of the fish fauna. The catfishes of Pseudecheneis are impossible to live in the natural environment alone, they have an inextricable connection with river natural environment and other living creatures. Their living condition and the survival stress are also faced by other fish groups equally. So it is extremely urgent now to effectively protect freshwater fish resources.

To explore general regularity of vegetation cover change in Guangxi and the leading influencing factors, the vegetation change trend from 2007 to 2016 was analyzed based on the vegetation normalized index data, meteorological data and digital elevation model (DEM) data using a linear regression method and coefficient of variation and correlation analysis. The results revealed that: (1) the vegetation coverage in Guangxi was in good condition with a growing tendency, and the perspective of vegetation, grassland, broadleaf forests, coniferous forests of NDVI is high. (2) most of the vegetation covers in Guangxi are stable as revealed by the data of 58.76% in an extremely stable state and 37.84% in a stable state with only 1.07% in a state underwent dramatic variation. Broadleaf forests are in a stable state with only a small change.(3)The annual average NDVI presented a negative correlation with the annual precipitation and the annual temperature.(4)Broadleaf forests, Coniferous forests, Grassland, Shrub showed a slightly increasing trend. And the vegetation cover area on Latosolic red earth, Red earth, Yellow earths, Limestone soils, Skeletal soil showed an increasing trend, but the Latosol vegetation cover area showed a declining trend.(5)NDVI change apparently with the change of altitude with an overall trend of increasing-declining-increasing.

In order to explore the best method of cutting propagation of Alchornea trewioides, orthogonal design is adopted to study the effect of A. trewioides cutting survival factors and the best way to cutting from the factors such as cutting way, cutting diameter and ABT concentration. The results showed that the best conditions for cutting propagation are to control a cutting length of about 8 cm and using oblique insertion with 45°, a cutting diameter of 10-15 mm and an ABT concentration of 300 mg/L. It will lead to a rooting rate of 86.7%, an average root number of 8.46, an average root length of 25.38 mm, a rooting index of 186.13, and an average leaf number of 1.54/plant.

As an emerging technology, virtual reality is expected to be used in the field of medicine, rehabilitation and so on. A series of psychological phenomena, which have been reported, are affected by the rotational direction and the FOV of virtual reality scenes. However, there is no reported quantitative method to analyze the role of virtual reality scenes in vection perception. In this article, 55 participants were enrolled to view the virtual rotational drum rotating around Pitch axis and Yaw axis respectively, and were required to report vection onset and the strength orally. The two kinds of scenes were randomly displayed and repeated three times for each subject, and each display lasted for 90s. The information of the visual scenes was estimated by the first-order entropy of the optical flow. Vection perception was found to be stronger in Pitch rotation condition and the optical flow entropy of this scene was larger. In conclusion, the experiment verified that the brain is more sensitive to downward movement from the perspective of the information quantity of visual sense.

To investigate the effect of starvation on the expression of USP7 gene in the liver of Mandarin fish, the full-length cDNA sequence of the USP7 gene was cloned from the liver tissue of Mandarin fish by 3′-RACE and 5′-RACE techniques (Accession No. MF000683) with 4 319 bp and its expression profile upon starvation was assayed by real-time quantitative PCR. Bioinformatics analysis showed that the full-length coding region of USP7 gene is 3 336 bp with 1 111 encoded amino acids. Among them, 180 and 137 ones are negatively and positively charged, respectively. The relative expression of USP7 gene in the liver at different starvation time showed a peak change, which had a significant increase and reached the highest value after a starvation duration of 4 days, then decreased gradually after a starvation duration of 7 days and finally reached the initial level (P<0.05). Our studies provided novel information about the USP7gene and its expression status upon starvation.

To explore the relationship of moderate intensity endurance exercise on Heme Oxygenase-1 (HO-1) protein expression in liver and its resistance to Non-Alcoholic Fatty Liver Disease Formation of rats fed with high-fat diet, 48 male SD rats were randomly divided into normal diet control group (NC), exercise and normal diet group (EN), the inhibitor + exercise and normal diet group (DEN) and high fat diet control group (HC), exercise and high fat diet group (EH), the inhibitor + exercise and high fat diet group (DEH). The changes of blood TC, TG, FFC concentrations and the expression ＆ the activity of HO-1 protein in the liver were observed, as well as for the changes of Total Antioxidant Capacity ＆ MDA content and the changes of blood ALT, AST concentrations ＆ liver morphology. The results showed that, in the groups of NC, EN and DEN, the expression and activity of HO-1 protein ＆ the Total Antioxidant Capacity of liver in group EN were the highest. Compared with group NC, groups HC, EH and DEH showed significantly higher concentrations of blood TC, TG, FFC, and a much higher expression of HO-1 protein with a significantly decreased HO-1 activity and a Total Antioxidant Capacity in the liver, as well as much higher MDA content in the liver and serum ALT, AST levels which suggested typical liver fatty degeneration. Among them, the liver HO-1 protein expression of group EH was the highest, but the above-mentioned abnormal changes for group EH were the lightest. In addition, the expression of HO-1 protein in the liver of group EH was significantly higher than that of group EN. Some conclusions could be drawn from these studies. High fat diet easily induced dyslipidemia in rats, decreased HO-1 activity and antioxidant capacity of liver, and increased reactive oxygen species. Moderate intensity endurance exercise can induce the expression of HO-1 protein in liver, increase the HO-1 activity in the livers of rats fed with high fat diet and the ability of antioxidation to eliminate reactive oxygen species, preventing NAFLD formation and protecting liver function.