Based on comparison of TRIZ theory and Extenics, the new innovative method is proposed, which combines the solving conflict approaches of TRIZ theory and Extenics. The new method includes the following steps: Firstly, the primitive model of Extenics is used to obtain contradictory parameters. Secondly, adopting TRIZ corresponding solving tools to find its suitable principles about the problem. Thirdly, according to guide of this principle and the mechanical structure, variety of possible solutions are obtained using the transform methods of Extenics. Finally, the advantageous evaluation method of Extenics is used to get an ideal solution about this problem. According to the new method, the structure of nozzle has been improved, which demonstrates this method can easily obtain an ideal solution.

①Cultivated land warning can be executed in specific location with geographical simulation and GIS. Taking Huangpu District, Guangzhou as an example, the variation trend of land use from 1995 to 2009 was analyzed and it is proved that urban land expansion is the most important reason of the cultivated land disappearance in this area. ②The urban land spatial distribution pattern of 2020 was predicted in slow-expansion mode by using the ANN-CA model in GeoSOS. ③Taking advantage of the spatial analysis in ArcGIS, cultivated land warning area was extracted by overlapping the urban land predicted map and cultivated land current map. The warning gross area was 931.86 hm² accounting for 37.88% of total cultivated land of 2009. It is concluded that there was a sharp contradiction between cultivated and urban land. A warning area is for agricultural production but it is suitable for urban development as well. According to the location and area of these warning areas, departments can adopt compensatory measures to reconcile the contradiction, manage cultivated land in multifunction, expand urban land reasonably and promote sustainable development in this area.

According to the application of the Internet technology development and the domestic and foreign research of energy consumption acquisition technology, this paper introduces a kind of control system of distributed energy acquisition based on Internet of Things,which includes the designe of hardware and software. Using distributed data processing and multi-stage hardware architecture system which consists of data acquisition control node, data concentrator, front of data processor, a distributed real-time data processing system is obtained to achieve rapid, real-time data processing system. This system collects the energy consumption data of the campus, passes the data to the regulatory platform, and through the platform analyze all kinds of energy consumption data statistics,provides reasonable optimization scheme to the implementation of the decision-makers, provides the basis for lower campus energy consumption level, saving the cost control.

According to the current data of Beijing-Zhuhai high-speed vehicle load, the three peak probability distribution model of two normal distribution and an extreme value weighted I type distribution was constructed with using the statistics and data fitting method, and this probability distribution model could effectively reflect the characteristics of the measured data of the vehicle load which had been proved after the comparative analysis with the common probability models. So, it has a certain reference value to the vehicle load‘s analysis. Moreover,the thesis studied each axle load car accounted for the proportion of six axle load car, and analyzed the parameters of each axle load with the least squares regression method. On the basis of this, we calculated the load effect of simply supported beam with 30 m span which could provide the reference to the research of our country highway bridge vehicle load standard and analyze the vehicle load.

The notion hypergroup raised by Wall is an important algebraic structure，it has a great number of important applications in theoretical physics including quantum mechanics and string theory, thus this kind of upgrading of mathematical structure has caused wide concern over the recent years. With the help of this method based on a collection of ideas and promotion, this paper researches the hypergroup based on physical application background, special M hypergroup with nuclear non empty, gives the corresponding structure, and proves a series results of M hypergroup between its subhypergroup and its nuclear.

This paper focuses on the complicated causes of urban pollution haze,and the inexact predicted value of the accident probability and its corresponding rules. We propose the fault tree analysis with the top-event of the urban fog-haze risk assessment methodology.Through the information gathering and analysis of pollution haze in urban areas, we propose the fault tree analysis with the top-event of the urban fog-haze risk assessment methodology. In the qualitative analysis of fault tree, we obtain 12 minimum cut sets, and finally determine the main risk model of urban fog-haze. The proposed method with fuzzy comprehensive evaluation for fault tree quantitative analysis was introduced in this paper. This method is focused on the evaluation of the basic event weight and the probability of the top events, which is more effective for preventing the fog-haze weather, and greatly reduces the risk of perniciousness caused by urban fog-haze.

Taking a college library in Guangzhou as an example, the influence of building vertical greening to outdoor thermal environment was studied using CFD method, and the results showed the temperature on 1.5 m height of building frontal square,the grassland and the river,reduced about 0.5~2.5 ℃,0.5~2.0 ℃ and 0.5~1.5 ℃ respectively, and about 8 ℃ on the roofing surface on the summer typical calculation date compared before with after using the vertical greening. Vertical greening not only improves effectively the outdoor environment, but also reduces the heat island effect, and outdoor and roofing temperature, and raises the roof insulation performance, and achieves the purpose of energy saving.

In order to improve the quality of the environment of campus beautification and campus environment, reasonable planning and scientific allocation of landscape plants in campus are very important. This study takes the campus of Guangzhou University as research object, selects typical region as samples from the campus teaching area, investigates the plants in samples as bases, uses theoretical knowledge of plant ecology, analyses the existing problems of campus plant configuration, and then, puts forward the optimization with the appropriate configuration recommendations. The study will give full play to ecological environmental effect and cultural effect garden plants, and beautify the landscape function, improve the campus environment, eliminate unreasonable distribution phenomenon, and will provide the reference for the university campus landscape construction.

Based on the definition and process feature of recovery percentage, the present authors analyzed the applicability of three popular formulas, it is deemed that these formulas are not universally used while each has specific conditions of application, and the reliability of results obtained by indiscriminately using the formulas is low. The reasonable assessment method is thought aabout, it is found that the recovery percentage in chemical analysis is not a direct measuring quantity, the uncertainty of recovery percentage should be the synthetic result of some composite factors, and the uncertainty of average recovery percentage is just the repetitive components in overall uncertainty of recovery percentage, and average recovery percentage can represent the overall uncertainty of recovery percentage only when it is dominated. It is recommended that by complying with the process and the principles of evaluating model, a higher reliability of the result can be obtained.

Monolithic aerogel composites with stable structures were successfully prepared by adding three types of fibers(viz., aligned glass monofilaments, polyester fibrous battings and electrospun polyvinylidene fluoride micro/nano fibers)into silica sols and following drying at ambient pressure. Effect of the types and diameters of the reinforced fibers on the structure, thermal conductivity and mechanical properties of the aerogel composites were investigated. The results showed that the monolithic aerogel composites had low thermal conductivities of 0.025~0.028 W·m^-1·K^-1 close to that of still air. The compressive strength could be 3~4 times higher than that of the pure aerogels. Moreover, the monolithic aerogel composites reinforced by micro/nano electrospun polyvinylidene fluoride fibers had better flexibility and integrity.

Guangzhou hotel industry develops rapidly in recent years, meanwhile, tourist satisfaction of this industrystill lacks study systematically. In this paper,basing on integration of the superiorities of Expectancy-disconfirmation model, only-perception model, norm model, we establish tourist satisfaction evaluation model for the hotel industry in Guangzhou, overcoming the theoretical defects of using a single model. Then, three groups of tourists are divided: tourists-in-GD, tourists-out-of-GD and tourists overseas, and this paper compares and analyzes the tourists in different cultural backgrounds, behavior characteristics, demand characteristics. Research results show that satisfaction of touists-in-GD is the highest, satisfaction of tourists overseas is the lowest. Domestic tourists have higher cost performance requirements to the hotel and the inbound tourists pay more attention to personalized demand, but lower to the sensitivity of the price.

In this study, organosilicon esterquats surfactant was synthesized by esterification of stearic acid and N-methyl diethanolamin, and then followed by quaternization with γ-chloropropyl methyl dimethoxysilane. Properties of softening, foaming, rewettability, whiteness, antistatic, and pH stability were mainly studied, which is providing the foundation for its application.

In this paper, asset pricing models based on investor sentiment are briefly reviewed. Based on many empirical research achievements,the existing six methods for measuring investor sentiment are systematically summarized: direct investigation, indirect representation, principal component analysis, partial least squares, dynamic factor model, test mining. Future development direction is finally pointed out according to the limitations of the research methods about investor sentiment analysis.

For the mechanical characteristic problems of prestressed high strength concrete pipe pile under the action of earthquake, considering the change of durability problems, the finite element analysis software named MIDAS/GTS is used, the influence of moment and stress suffered by PHC pipe pile under the action of earthquake is analyzed, the situation of influence factors changing such as pipe pile elasticity modulus, pipe pile wall thickness and core concrete length are discussed, the measures for improving anti-seismic property are proposed, which lay foundations for the further research on the anti-seismic property of PHC pipe pile.

In recent years, with the isolation technology becoming mature, more and more the high-rise complex structures with large podium and multi-skirt building adopt the base isolation technology. But, many new technical problemsappeared; the problem of how to improve the isolation effect of the main tower on the same height with the skirt building is especially acute. In this paper, a base-isolated high-rise structure with large podium and multi-skirt building is selected as an example; the dynamic characteristics and seismic response behavior are studied by changing the number of large podium, namely the number of connection storey of the main tower and the skirt building. The results of modal analysis and time-history analysis indicate that the more number the large podium has, the betterisolated effectthe main tower has; the bigger the displacement of the isolated layer is, the smaller the inter-storey displacement and acceleration of the main tower are, and the smaller probability the tensile stress of the isolator shows. So, from the isolation design point, the suggestion is proposed that as many large podiums as possible are used to connect the main tower and skirt building for the high-rise base-isolation building with large podium and skirt building.

The thesis is based on a questionnaire about the consumer perception on food safety risks in Guangzhou, and attempts to figure out the relevant factors by Exploratory Factor Analysis and Structural Equation Modeling. The results indicate that: “the involvement of food” doesn’t have direct influence to consumer perception on food safety risks; “the emotional factor” and “risk attitude of consumers” have a positive influence to risk perception; “the emotional factor” is the major factor; and “trust” on the government and enterprise can let the consumers’ psychological defense down, thus reducing the risks perceived in the course of purchasing food products.

The influence of damping ratios of the structural components should be considered in the responses of a long-span suspension bridge under earthquake effect in three dimensions by the response spectrum method. The modal analysis is conducted by taking into account the different structural component damping ratios. And then the integral damping ratio of the structure is determined by using the mode damping ratio in terms of the maximum mode contribution coefficient. After that, the earthquake responses of a suspension bridge are evaluated by the response spectrum method. Results indicate that the influence of the structural components damping ratios on the structural earthquake response should not be ignored. The integral damping ratio value, being 0.02 for a suspension bridge, as recommended by the “Guidelines for Seismic Design of Highway Bridges”, might lead to a conservative but secure design on the structure.

This paper proposes an improved method for ranking fuzzy numbers based on the centroids, the minimal fuzzy sets and the weights area. We give a new sort indicator, which considers the effects of fuzzy number itself, the relationship and the policymakers′ attitude, and discuss its properties. We prove that the indicator meets the basic properties of fuzzy number order. With this method, not only can we overcome some shortcomings in the former method for ranking fuzzy numbers, but also rank all sorts of fuzzy numbers more efficiently. The numerical experiments showthe rationality and the superiority of the new method.

We simulate and compare the reliability of two kinds of networks: pseudofractal scale-free network and Sierpinski gasket.The robustness and all-terminal reliability were analyzed for the two networks.Results show pseudofractal scale-free network is more robust against random removal of nodes and edges than Sierpinski gasket, but it is not as good as Sierpinski gasket in the sense of all-terminal reliability.

Studying the correlation between population space and economic space is one of the basis of rational planning and allocation of space resources. The study applies the data of the sixth population census and other related statistical data, taking the administrative district and the street of Guangzhou as the evaluation unit, using the method of population geography concentration to analyze the spatial equilibrium of population firstly. And then the entropy method, sensitive analysis and grey prediction model GM (1, 1) are used to empirically analyze the population-economic spatial correlation of Guangzhou, which is carried out from three aspects: the matching between population and economic spatial distribution, the correlation of spatial growth and the forecast of space coordinated development. Studies show that: ① The population of Guangzhou is very concentrated in central urban area and its distribution showed a significant center-accumulated situation. ②The sustained and rapid development of Guangzhou’s economy has a strong attraction for the population and the population aggregation has a high contribution to economic development, but there are some differences in the internal space: the regional population and economic spatial distribution is mismatching, whose typical representatives are Yuexiu and Luogang. The correlation of regional spatial growth is out of sync, whose typical representatives are Nansha and Panyu. ③The regional population-economic spatial coordination degree will show two trends of polarization development in 2015 and 2020.

Based on the established structural health monitoring system of He-dong Bridge, the simultaneous monitoring on the displacement and acceleration response at the main tower and bridge deck were conducted under ambient excitation for this bridge. The vibration displacements were measured by GPS deformation monitoring subsystem while acceleration responses were monitored by accelerometers. The improved HHT technique, which was based on EEMD method, was utilized to conduct the time-frequency analysis on GPS monitoring displacement. Meanwhile the ordinary peak pick-up method, which is based on the normalized power spectral density, was also adopted for modal parameter identification with measured acceleration signals. Compared results from two different identification methods showed the more advantage in the improved HHT method, as it could deal with the interference of non-stationary random signal in low frequency and reduce the incidence of the modal mixture effectively. Meanwhile comparison with finite element numerical analyzed results implied that identified modal parameters for this bridge from both HHT and peak pick-up methods are reliable. The combination of GPS deformation monitoring system and vibration acceleration test system could identify the modal parameter of He-dong Bridge effectively and could provide a solid basis for improving the bridge operation safely.

Based on expected utility theory and controlling interests, using mathematical analysis method, this paper discusses the influence factors and the mechanism of listed companies financial investments in China. Although the impact mechanisms of each are not identical, our study finds that: the ownership structure, asset liability ratio and main business earnings are the important factors that affect financial investments.

There are 1 942 species of generalized wetland vascular plants belonging to 177 families and 703 genus in China. Among them, 185 species belonging to 54 families and 112 genus and about 9.53% are alien. Among the alien wetland species, there are 8 species classified as invasive alien species in China, all from America. Spartina alterniflora, Eichhornia crassipes, and Alternanthera philoxeroides are typical wetland plants, the other 5 species listed as Mikania micrantha, Wedelia trilobata, Sorghum halepense, Ambrosia artemisiifolia, and A. trifida have higher adaptive ability to wetland habitats. Most of the alien species about 56.22% are from America. Asteraceae has 17 genus and 21 species, Echinodorus has 14 species for the largest family and genus, respectively. There are only 10 species of tree types. Hydrophytes have 115 species for about 65.71% in herbs.To ensure the ecological safety, ecological effect risk assessments should be taken before introducing the cultivated species.

According to the characteristics of high-technology industry, this paper constructs independent innovation environment evaluation index system. By referring to the statistical data, it specially analyzes the policy, market and talents environment by CURE clustering algorithm, to discern the independent innovation environment of high-technology industry.

Mixture designs are applied in industry, agriculture, science experiments and medicine, which attract the attention of many researchers. With deep research for mixture experiment, we often need to analyze the model with qualitative factors. This paper considers mixture model with the qualitative factor and its optimal designs. We obtain the necessary and sufficient condition of the D-optimal and A-optimal designs for the model, then we can obtain the optimal designs for mixture model with qualitative factor.

The effects of different salinities on the yield percentage, ash content and the sulfate content of agar extraction from G. lemaneiformis with the alkali cooking method were studied, which is to provide the basis for improving the agar extraction technician from Gracilaria lemaneiformis by using sea water. Experiments were carried out in the following three conditions: treatment temperature of 90 ℃ with alkali concentration of 8%, treatment temperature of 60 ℃ with alkali concentration of 12%, and treatment temperature of 90 ℃ with alkali concentration of 20%. The results showed that different salinities were not positively correlated to the agar yield percentage, ash content and the sulfate content in all the three experiment conditions, which suggested that the salinities were not the key factors and did not need to be paid special attention to in the process of agar extraction from G. lemaneiformis by using sea water.

This essay presented cross imaging algorithm based on digital image technology and the image resolution was improved by crossing calculation of images captured by two thermal infrared imaging cameras. The ship at sea works as a target object. By separating the images, sea level mapping, and ship identification, high precision positioning of the target object can be achieved. Its accuracy of measurement appropriately satisfies the needs of projects. Thermal infrared images with high precision play important roles in project monitoring and measurement. This also expands the application of infrared thermal imaging technology in actual project monitoring and measurement.

This paper aims to study the effects of alkyl polyglucosides (APG) aqueous solution concentration, sodium chloride and polyethylene glycol on the rheological properties of APG and its complex systems. The results show that different rheological characteristics are found in different concentrations of APG solution. APG is non-Newtonian fluid when the concentration is≥9%, and APG is Newtonian fluid when the concentration is 8%. The effect of salt concentration on APG rheological properties is significant. The solution shifts from non-Newtonian fluid to Newtonian fluid when the NaCl concentration is ≥1%. The rheological behavior of polyethylene glycol and APG complex system is changed. The complex system is Newtonian fluid when polyethylene glycol concentration was low, and the complex system is non-Newtonian fluid when polyethylene glycol concentration is high.

A CPAM-MMT hybrid polymer was synthesized through dispersing polymerization with Acrylamide (AM), the organic modified montmorillonite (O-MMT), 2-methylacryloylxyethyl trimethyl ammonium chloride (DMC) and its flocculation performance was also studied. The experimental results showed that morphology of the CPAM-MMT hybrid polymer was a multi-branched structure which helps to entrap more suspended colloidal-particles and gives a better bridging capacity, the flocculation ability of the CPAM-MMT hybrid polymer on the kaolin suspensions was better than that of CPAM and its optimum dosage was about 10 mg·L^-1, the CPAM-MMT hybrid polymer possessed the adsorption function on Cr(VI) ions, which made the decolorization rate on Cr(VI) larger than that of the CPAM, the CPAM on Cr(VI)was 18%. However, the CPAM-MMT(1) hybrid polymer was 28%.

The modeling of the inlet fluctuated wind velocity in large eddy simulation plays an important effect on the precision of computational fluid dynamics numerical simulation of wind loads on buildings. Along with the application of DSRFG method in turbulence wind velocity, the study on selecting the reasonable numerical values of some main parameters in this method was conducted in this paper. These key parameters mainly include: the discretized sampling number for the simulated energy spectrum of fluctuated wind speed, the number of triangular function series in modeling the energy spectrum, the spatial and time scale parameter. The effect of these parameters on the simulated power spectrum and vertical spatial correlation of fluctuated wind speed were studied by an example of inlet fluctuated wind velocity simulation for the CFD application. Simulated results showed that the more scattered numerical values in spatial scale parameter were found to fit the empirical vertical spatial correlation of fluctuated wind speed. Finally a numerical simulation of inlet fluctuated wind velocity was conducted in this study through DSRFG method with the proposed values for these four parameters, and the simulated results could represent the von Karman spectrum and its vertical spatial correlation with considerable precision.