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Due to the inhomogeneous mechanical properties of laser welding joints, it is necessary that the local mechanical properties of welding joints are measured for the assessment of the whole welding joints. Especially for mechanical properties test in heat affected zone of welding joints. Two methods of micro shear test and hardness test to measure mechanical properties of micro-zones were introduced. Using these two methods the mechanical properties of the micro-zones of X80 pipeline welding joint are determined and compared. The results showed that the micro shear test could be intuitively, quantitatively and continuously describe the strength and plasticity of the regional heterogeneity distribution, suitable for the assessment of the mechanical properties and fracture toughness of welding joints.

In view of the current situation that lacking of the guidance method on evaluation emergency ability for construction enterprises,This article uses the extension matter-element model to evaluate construction enterprise accident emergency ability. According to the time node characteristics of accident emergency ability,Using AHP for constructing the evaluation index system of accident emergency abilities of construction enterprises and determining the weight coefficient of each index ,Using extension theory to establish the evaluation model of construction enterprise emergency ability,and taking an example conducted evaluation and determined the accident emergency ability grade.

This paper takes gray prediction forecasting model as a tool to forecast the real estate market in Urumqi from development and investment, construction housing area and sale of housing area. The difference between the actual value and the predicted prediction value is small, with high accuracy. Predictive value can be reflected in the coming period of the real estate market situation in Urumqi. From the predicted results, we could know that there is a lot potential in Urumqi real estate market in next few years and investment in real estate the construction housing area, housing area of real estate sale will get a larger annual growth. In general, there will be increasing potential in the development of the real estate market in Urumqi. Meanwhile, Urumqi real estate market will tend to rationally develop under the regulation of government in the next few years.

Here, GdPO4:Eu3+ nanostructures with different morphology and size were successfully synthesized by a hydrothermal method and characterized by SEM ,XRD, PL and VSM . The results indicated that the morphology and crystallization strongly depended on the pH value of precursor solution as well as the surfactant and hydrothermal time. The photoluminescent and paramagnetic results showed the nanorods could be used as a promising nanoprobe for dual-modality with optical bioimaging and magnetic resonance imaging.

The hidden costs due to the current evaluation model for green building lacks relevance, and therefore this paper, fuzzy comprehensive evaluation method, From the three major aspects of business, users and social selected 16 indicators of the operational phase of the hidden costs of starting to build a green building implicit operational phase cost evaluation model through structural entropy method will combine objective assignment method and subjective assignment method to determine the evaluation index weights, In order to achieve the operational phase of the project the green building real-time monitoring of hidden costs. The results show that the hidden costs of green building evaluation index for multi-operational phase problem, the method can be more objectively and accurately reflect the size of the extent of its hidden costs.

The first-principles with pseudopotentials method based on the density functional theory was applied to calculate the formation energy of impurities and the electronic structure of ZnO doped with Na. In Na-doped ZnO, NaOis the most unstable than the other cases. Simultaneously, NaZnis more stable than Naiaccording to that NaZnhave smaller formation energy. Furthermore, the electronic structure of Na-doped ZnO indicates that that NaZnbehaves as an acceptor, while Naibehaves as a donor.

Aiming at the existing defects of pipeline risk assessment model of Kent index method on spill score,population score and leak impact factor, five compensation coefficient are put forward in pipeline risk assessment basic model qualitatively,of which include past failure modes,emergency response, sensitive environment,high value areas and support/oppose of nearby residents.Thus,the compensation correction model on leak impact factor of pipeline risk assessment are established.This model enhances the accuracy for the work of pipeline risk assessment.Finally,the verification analysis showed that the modified model can objectively reflect the degree of pipeline risk.

According to the characteristics of construction project, it set the third level of duration implicit cost, deepening the understanding of the duration implicit cost in construction project. Through analyzing the similar characteristics of the technique of project network diagram and neural network, it built a duration implicit cost control model based on neural network, which can adjust the project network diagram to the optimization direction. Aiming at the defects of the traditional neural network, the variable learning rate back-propagation arithmetic and the additional momentum method were introduced, and the duration implicit cost control model was built, improving the accuracy of the control for the neural network technique.

In recent years, Building Information Modeling has been more and more used in China's building industry. However, several resistances that hamper the use of BIM in China appear in the process of BIM implementation. And this research intents to identify these obstructions and find the solutions. Key words: BIM; BIM Implementation In China ; Obstruction; Solutions

Green construction plays an important role in the formation of green building. For the characteristics of fuzziness and incompatibility, this paper introduces the theory of fuzzy matter-element into the evaluation of green construction. The power weight is worked out with the entropy method, the related degree values between the standard fuzzy matter-element and each fuzzy matter-element is established, it lines up each scheme to pick up the best scheme. The result shows that among the methods of multiple indexes comprehensive evaluation of green construction, this method can reflect the extent of green construction objectively and accurately.

Microalgae are microscopic heterotrophicautotrophic photosynthesizing organisms with enormous potential as a source of biofuel. In the masses of biomasses, microalgae has the advantages of high lipid, large biomass, short growth cycle and easy cultivation and with microalgae as the raw material. Light condition is crucial to cultivation of microalgae.In this paper, the microalgae strain ofChlorella sp.was supplied in BG11 medium, and Cultivation optimization were experimented. The results were showed that growth of chlorella was associated with a saturated light intensity, light intensity which was suitable for the growth of chlorella was 2000Lux. Growth of chlorella required an appropriate light-dark alternation to facilitate matching of photoreaction of photosynthetic process with dark reaction of photosynthetic, appropriate light-dark photoperiod of illumination time which was suitable for the growth of chlorella was 12:12.

Based on the 3D mine software platform and aimed at optimizing the ore blending process,according to the different lithological features of Molybdenum and Tungsten in Sandaozhuang open pit,the data integration of storage,update and management in different maps,images,tables,lithology was realized.Using the lithologic database and human-computer interaction technology,the complex lithology profile of exploration line has been drawn,and based on the technology of triangulation,the lithology model of skarn, hornfels, quartzite has been established. The construction shows that this model can provide theoretical basis and data foundation for ore blending method of lithology.

In recent years, the use of liquid biofuels in the transport sector has shown rapid global growth, driven mostly by policies focused on achievement of energy security, and mitigation of GHG emissions. Microalgae, as biomass, are a potential source of renewable energy, and they can be converted into energy such as biofuel oil and gas.In this paper, the microalgae strain of Chlorella sp. was supplied in BG11 medium, and Cultivation optimization were experimented. The results were showed that temperature was an important factor which could influence growth and accumulation of secondary metabolite in the cell from accumulation process of biological products, temperature which was suitable for the growth of chlorella was 25°C.

The first-principles with pseudopotentials method based on the density functional theory was applied to calculate the geometric structure, the formation energy of impurities and the electronic structure of Li-doped ZnO. In the system of Li-doped ZnO, LiZn can not result in lattice distortion. In contrast with that case, LiO and Lii result in lattice distortion after Li doping in ZnO. In Li-doped ZnO, LiO is the most unstable than the other cases. Simultaneously, Lii is more stable than LiZn according to that Lii has smaller formation energy. Furthermore, the electronic structure of Li-doped ZnO indicates that that LiZn behaves as acceptor, while Lii behaves as donor. In conclusion, in Li-doped ZnO, Lii is always in the system to compensate the acceptor. Singly doping Li in ZnO is difficult to gain p-ZnO for the self-compensation. The results are in good agreement with other calculated and experimental results.