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Sericin and egg white (EW) have shown the ability to promote wound healing. However, there have been insufficient studies regarding the effects of sericin and EW mixtures on wound healing. This study aimed to investigate the effects of a hybrid sericin and EW solution on wound repair and inflammation-related indicators in mouse skin. In this work, sericin with a low molecular weight was first mixed with homogeneous EW to prepare a hybrid wound dressing. Histology evaluation, the expression of C-reactive protein (CRP) and inflammatory cytokines in mice were tested to determine the effects of this dressing on skin injuries in mice. The results showed that sericin and the hybrid solution of sericin and EW effectively promoted wound healing in mouse skin. The wound recovery rates of mice 12 days after treatment with a medium dose of sericin (0.2 g ml−1) and the same dosage of sericin with added EW were 1.32 and 1.65 times that of mice treated with phosphate buffer saline as a control, respectively. In addition, the mixture solution was more effective in wound healing than sericin alone. Sericin with EW significantly reduced the expression of CRP and inflammatory cytokines in mice during wound healing. A sericin and EW hybrid solution can effectively shorten the time needed for wound healing and reduce inflammation-related indicators in mice, making it a promising candidate for wound dressing.

IP Golocation is an important technique to achieve network attack traceability, network security early warning, and improve the ability of cyberspace governance. Due to the limitation of collecting a large number of anchor nodes, it is impossible to accurately infer the IP location to block level or more in a large scale. Therefore, this paper proposes a target driven IP geolocation inference method. Firstly, the candidate anchor node is collected from the subnet or the adjacent subnet of the target IP, then the candidate anchor node is calibrated by their fingerprints, and finally the geolocation of target IP is comprehensively inference by its proximity to anchors. In order to verify the proposed method, 10,000 IPs in Beijing is selected randomly. The experimental results show that the method can effectively infer the geographical location of the target IP address.

At present, there are two main problems in urban green space soils. One is the change of soil properties due to human treading. The other is the invasion of guest soil and solid waste, which leads to poor soil physical status and fertility. A large amount of dredged sediment is generated every year in urban rivers, and if it is not handled properly, it will cause secondary pollution. Since the dredged sediment contains nutrients such as N and P required by plants, the dredged sediment can be applied to the problem of soil improvement in urban green space to achieve an ecological disposal effect.

With the development of human society, a large number of land problems have emerged. These land problems seriously endanger human health and the ecological environment. Land engineering is based on solving land problems. The core is the study of soil organic remodeling. A key research direction of soil organic remodeling is material research. It can provide necessary support for the harmonious development of human-land relations and land ecologicalization.

The hydroponic study was used to research the effect of the iris on the removal of N and P in water, and the change of nitrogen and phosphorus in plants. The results showed that at the end of the experiment, J2 (N2P1) treated the height of the plant with the largest height of 81.1 cm; followed by J9 (N3P2) treatment, which was 75.0 cm. The J9 treated iris has the highest nitrogen content of 0.731%. And with the increase of nitrogen dosage, the nitrogen content of the leaves increased. The amount of phosphorus in the dry matter of the iris leaves ranged from 0.311% to 0.501%. The clearance rates of the three different concentrations of N were 63.5%, 67.5% and 70.2%, respectively. The clearance rates of three concentrations of P were 43.0%, 52.9% and 62.1%. When the test was carried out for 14 days, the NH4 +-N elimination rate reached 79.0%; the NH4 +-N clearance rate of J9 reached 81.0%, which was significantly higher than other treatments. At the end of the experiment, the elimination rate of NO3 −-N in water reached 16.4%, and J9 was the highest, reaching 27.4%, which was significantly higher than other treatments. According to the comprehensive analysis, the iris of J9 grew well, and the effect of purifying nitrogen and phosphorus was better.

In this chapter, nonlinear dynamic behaviors of the variable cross-section rotating blades are studied. The blade is considered to be a rotating cantilever plate model with variable cross-section. Considering the influence of centrifugal force, variable rotating speed and cross-section warp. In the light of the Hamilton’s principle, the von Karman deformation theory and the third-order shear deformation theory, we can derive the ordinary differential equation by using Galerkin method from the nonlinear partial differential equations. The multiple scales is applied to get the averaged equations with the 1:3 internal resonance of the rotating blades. Using numerical simulation to study the effects of aerodynamic forces and disturbance amplitude of the rotating blades on nonlinear dynamic behaviors. It shows that the rotating blades performs complex nonlinear dynamic behaviors, such as single periodic, chaotic motions, multiple periodic and quasi-periodic.

Construction land preparation is an important aspect of land remediation project. The research of materials in the process of land improvement is the foundation and the core. Therefore, it is necessary to study the materials that may be involved in the process of building land preparation. In this paper, the research on the construction materials such as recycled concrete, geosynthetics, soil stabilizers, soil improvers, building insulation materials and inorganic fibrous insulation materials, which are commonly used in construction sites, is reviewed and discussed in this paper. Land remediation project involved in the construction of land materials to provide reference.

Three kinds of underlying surfaces: asphalt road, impervious tiles and grassland at Chang'an University in south second ring road of Xi'an were chosen as testing sites. Self-made device was used to moderate rainfall with different raining conditions: uniform rainfall intensity of 0.3mm/min, 0.5mm/min, 1.0mm/min; front peak type rainfall and back peak type rainfall. The pollutants in the runoff were measured, that included TN, TP, NO3--N, NO2--N, NH4+-N, PO43--P and PN M(V) curves and MFF30 values were analysed to drew these conclusions: under uniform rainfall intensity of 0.3mm/min, 0.5mm/min, 1.0mm/min, the mean values of MFF30 from asphalt road runoff were 0.47, 0.42, 0.41, the mean values of MFF30 from watertight tiles runoff were 0.40, 0.39, 0.38, the mean values of MFF30 from grassland runoff were 0.33, 0.34, 0.32. The first flush magnitude decreased with the increasing of rainfall intensity on asphalt road and watertight tiles, while the first flush intensity first increased and then decreased with the increasing of rainfall intensity on grassland. The mean values of MFF30 from the front peak type rainfall were larger than that from the back peak type rainfall on both asphalt road and watertight tile. The mean values of MFF30 from the back peak type rainfall were larger than that from the front peak type rainfall on grass. Grassland should be built around asphalt road and watertight tiles to attenuate first flush effect.

We study the relationship between electromagnetically-induced transparency (EIT) and Autler–Townes (AT) splitting in a cascade three-level Doppler-broadened system. By comparing the absorption spectrum with the fluorescence excitation spectrum, it is found that for a Doppler-broadened system, EIT resonance cannot be explained as the result of quantum interference, unlike the case of a homogeneously broadened system. Instead, the macroscopic polarization interference plays an important role in determining the spectra of EIT and AT splitting, which can be explained within the same framework when being detected by the absorption spectra.

We study the electromagnetically-induced transparency (EIT) in a Doppler-broadened cascaded three-level system. We decompose the susceptibility responsible for the EIT resonance into a linear and a nonlinear part, and the EIT resonance reflects mainly the characteristics of the nonlinear susceptibility. It is found that the macroscopic polarization interference effect plays a crucial role in determining the EIT resonance spectrum. To obtain a Doppler-free spectrum there must be polarization interference between atoms of different velocities. A dressed-state model, which analyzes the velocities at which the atoms are in resonance with the dressed states through Doppler frequency shifting, is employed to explain the results.

We study phase-conjugate six-wave mixing spectroscopy based on electromagnetically-induced-transparency in a Doppler-broadened folded four-level system. It is found that the six-wave mixing spectrum can be either Doppler-free or very broad, depending on whether the interference between the polarisations of atoms with different velocities is constructive or destructive. To obtain the Doppler-free six-wave mixing spectrum in the folded four-level system, the conditions are more stringent in comparison with those in the cascade and N-type four-level systems. This polarisation interference can be controlled in the presence of a strong coupling field.