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Gentamicin is a kind of aminoglycoside antibiotics and widely used in the prevention and treatment of the duck diseases. A prediction model was established for the rapid detection of Gentamicin residue in duck meat using fluorescence analysis method according to the strong fluorescent characteristic of the generated derivative for Gentamicin and o-phthaldialdehyde (OPA) in the presence of emulsifier OP-10 and mercaptoethanol.The fluorescence spectra of the duck meat containing Gentamicin were analyzed, the optimum excitation wavelength of the material was 340 nm and the optimum emission wavelength was 442 nm. Fluorescence intensity and the concentration of the standard samples presented the good linear relationship, the linear correlation coefficient was 0.9963 and the limit of detection was 0.47 μg/mL in the dynamic rang of 0.5 ~6.5μg/mL. The correlation coefficient of regression equation was 0.9968 for the samples of duck meat extract. The experimental results showed that the fluorescence analysis method had a good performance and accuracy in detecting the Gentamicin residue in duck meat.

By using the Abaqus software, FEM calculation of the quenching process of non-standard component which has complex contour has been operated, the temperature field distribution which accompanies the quenching time has been obtained. The simulation process’s precision and efficiency is excellent, this method is applicable to the quenching technics’s improvement, and can offer the calculation basis to the analysis of the thermal stress field and residual stress. It can also provide the improving scheme for the intensity design of the coal winning machinery.

This article presents a new exploitation method based on the same fractured horizontal well with fractures for injection or production on offshore low permeability oilfields for the purpose of adapting to their practical situations and characteristics, which means fractures close to the toe of horizontal well used for injecting water and fractures near the heel of horizontal well used for producing oil. According to proposed development mode of fracturing, relevant physical model is established, Then reservoir numerical simulation method has been applied to study the effect of arrangement pattern of injection and production fractures, fracture conductivity, fracture length on oil production. Research indicates cumulative oil production is much higher by employing the middle fracture for injecting water compared with using the remote one, suggesting that the middle fracture adopted for injecting water, and hydraulic fracture length and conductivity have been optimized. The proposed development pattern of a staged fracturing for horizontal wells with some fractures applied for injecting water and others for production based on the same horizontal well provides new thoughts for offshore oilfields exploitation.

Using a self-developed triaxial seepage device, tests of coal samples from Liu Panshui coal mine were carried out to explore the relationship between permeability and pore pressure when effective stress and temperature conditions keep constant as well as the impact of pore pressure on gas seepage. The research results show that: Permeability decreases with the increase of pressure difference between inlet and outlet Δp when effective stress and temperature keep constant; permeability declines in a nonlinear tread with increase of pore pressure and they all have a exponential relationship; when pore pressure is low, permeability decreases faster with changes in pressure difference between inlet and outlet Δp. When gas pressure is low, with pore pressure increasing the gas flow pore narrowed.

Healthcare waste management represents a challenge in China due to insufficient legislation and financial investment, lack of awareness and effective regulations, lack of trained clinical staffs in the waste management framework etc. This study considered the issues of existing healthcare waste management practice and put forward the policy suggestions.

Analysis the heavy metal element content and grain size of surface sediment in the eastern of Pingtan Island around the upwelling region, combined with the correlation analysis methods, discusses the relationship between the sediment grain size and content of heavy metal elements in this upwelling region. The results show that, fine particulate matter has certain enrichment effect to some heavy metal elements. Correlation analysis showed that, fine particulate matter can enriched heavy metal elements, such as Pb, Zn, Cu, Ni, Co. and the Cr and As elements showed certain independence, and not relevant with the particle size, no obvious correlation with the other heavy metal elements, only has certain correlation with individual elements, show that this element have certain degree of selectivity.

Using two conventional aromatic rice cultivars and one hybrid aromatic rice combination, effects on the quality of aromatic rice were studied by spraying zinc and other multiple nutrient elements under the field experiment.The results showed that by spraying Zn, ZnMg，ZnMgK and ZnMgKFeCu MoCoB on heading stage and followed on the 7th and 14th day after the heading stage, the rate of brown rice, milled rice and head rice, the score of aroma and eating and the content of protein were improved, the chalky rice rate, chalkiness and amylose content were reduced and at the same time the length of rice gel was elongated, therefore the processing quality, appearance quality, cooking and eating quality and nutrient quality of aromatic rice were improved to some extent. The highest quality of aromatic rice was achieved by spraying the combination of Zn and all the other multiple nutrient elements, followed by spraying ZnMgK, ZnMg and Zn solely.

Based on the experiment of two inbred aromatic rice varieties and one hybrid aromatic rice line treated under four different temperatures( daymean temperature 21°C, 23°C, 26°C and 30°C respectively) during grain filling stage in phytotrons, the shape and arrangement of endosperm starch granules in rice grain transection were observed by scanning electron microscope and the related characteristics of rice grain qualities of chalky percent and chalkiness were analyzed at the same time. The results showed that under the lower temperature( daymean temperature21°C and 23°C), many large compound starch granules with clear angulars packed together regularly without significant natural gaps bewteen starch granules in the tansectional endosperm. However, with the increase of temperature, starch granules in the transectional endosperm were changed from regularly shaped and closely and orderly arranged to various shaped and chaoticly arranged with obvious natural gaps between starch granules, which was closely consistent with the poorer appearance quality under the higher temperature, which indicated that the endosperm structure is closely related with appearance quality of aromatic rice.

As a traditional mode, Mass Production in real estate development is having changed to Housing Mass Customization. It is considered that not only production formalization and demand personalization could be combined with well by HMC mode,but also the separation degree between housing supplies and housing demand could be decreased in a great extent. The traditional pricing methods ,such as market comparison approach ,discounted cash flow and cost approximation, are not suitable for determining the price of residential development project produced by housing mass customization mode. In the paper, market behavior of HMC project is analyzed, and it is found that forward contracts theory can be applied to determine the HMC project price. In the finial, an appropriate pricing method is put forward .

Corrosion of prestressing strands is a main durability issue for prestressing structures. In general, the corrosion zones of strands are hidden in structures which lead to be hardly inspected by traditional methods. An instrument for detecting the non visible corrosion of prestressing strands using magnetostrictive guided waves is provided. The instrument is described in detail. The workflow to detect the strands is provided. Field trials and laboratory experiments show that the information of position, length and amount of the corrosion can be obtained from the data. The instrument provides support for ensuring the safety of prestressing structures.

The related components of material testing machine (e.g., pressure plate, pressure head, compression bar, etc.) produce distortion in the experiment. It is obviously irrational to use the stroke to replace the specimen displacement, which can’t be measured directly by the extensometer in the destructive test. Therefore, the evolution of specimen displacement, machine displacement and stroke of 45 steel, duralumin alloy and sandstone was analyzed under uniaxial monotonic loading and uniaxial cyclic loading. The results show that the deformation of the related components of universal testing machine, which increases/decreases along with the increase/ decrease of load, can’t be ignored. And there is a good one-to-one correspondence between the machine displacement and the load. It also has nothing to do with the types of specimen materials and the experiments. The relationship of machine displacement and the load can be used to determine the specimen displacement indirectly.

To solve the problem of the uncertain style knowledge acquisition during the product designing, the information model oft style with Kansei Engineering and a reduct approach to style information based on rough sets is introduced. On the basis of the attribute analysis of form features and the image semantic extractions by the web-based style evaluation system. In the system the evaluate information of style is obtained and the decision-making table is constructed. And then the valuable knowledge rules represented the typical product style are acquired through the attribute reduction algorithm. Finally, the attribute feature sets related to the different style image could be presented. Typical Ming-style chairs as an example to show that the method is effective and feasible.

This paper firstly introduces the status of network safety, network safety aim, traditional network safety technology and necessity of network intrusion detection system (NIDS). Secondly, this paper discusses the concepts and definitions of NIDS. Thirdly, this paper analyzes structure and key technologies of NIDS. Finally, introduces an example software of NIDS –snort.