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The purpose of this paper is to give explicit constructions of vectorial hyper-bent functions in the $\cP\cS_{ap}^{\#}$ class. It seems that the explicit constructions were so far known only for very special cases. To this end, we present a sufficient and necessary condition of this family of vectorial functions to be hyper-bent. The conditions are expressed in terms of group ring. Using this characterization, explicit constructions of vectorial hyper-bent functions of the $\cP\cS_{ap}^{\#}$ class via balanced functions are proposed. Furthermore, exact number of vectorial hyper-bent functions in the $\cP\cS_{ap}^{\#}$ class is found. The results improve some previous work. Moreover, we solve a problem of counting vectorial hyper-bent functions left by Muratovi\'c-Ribi\'c, Pasalic and Ribi\'c in [{\em IEEE Trans. Inform. Theory}, 60 (2014), pp. 4408-4413]., Comment: 12 pages

Background: Lead Zirconate Titanate (PZT) films were synthesized by sol gel technique. The growth of films on ITO, Si\SiO2\Ti\Au, Si\Au and Si\SiO2\Ti\Al substrates discussed. In this study, Zirconium nitrate, lead acetate, and Ti (IV) isoproxide used as raw materials. Besides, acetic acid used as a solvent and 2-methoxy ethanol used as a stabilizer for Ti structure. Along with this, PZT films have perovskite structure, thin-film perovskite structure with high dielectric properties and hysteresis loop have been investigated. Methods: The effects of the type’s substrate on dielectric properties the ferroelectric properties were investigated and compared PZT film which deposited in different substrates. The films annealed at 600°C to complete crystalline films. XRD shows tetragonal PZT films have a strong perovskite structure with [100] prefer plane orientation. SEM and cross-section technique used to study for PZT surface films. Results: The dielectric constant at room temperature was different values depending on the types of substrate. The dielectric properties of the PZT films measured at 1 kHz were 120-400 dielectric constant and dielectric loss 0.02-0.08 at room temperature and 1 kHz. Conclusion: The largest remnant polarization (Pr) and coercive field (Ec) are obtained for PZT film deposited on Si\SiO2\Ti\Au substrate, equal to 26.6 mC/cm2 and 38.3 kV/cm, as compared to 16.3 mC/cm2 and 32.2 kV/cm2 for PZT film deposited on ITO substrate.

The construction cost business mainly includes the preparation of bill of quantities, the preparation of the tender control price, settlement auditing, and the whole-process cost management. Specifically, bill of quantities is the basic document of the bidder’s unified quotation provided by the tenderer. The tender control price is the maximum construction cost limited by the bidder on the proposed construction project, which is also called block bid price, bid control price or the highest quotation. The settlement auditing refers to the process of the construction enterprises handling the project price settlement with the construction unit (owner) in accordance with the contract and the completed project quantities. Generally, the construction unit entrusts a consulting agency with appropriate qualifications to calculate and review the submitted settlement until all parties perform links such as confirming the amount. The whole-process cost management is the process of investment management for all or part of the construction project from decision-making to completion.

With the development of the construction industry, new technologies and processes continue to emerge. The extensive application of Internet big data has led to the rapid development of informatization in the cost of construction. In order to meet the needs of the owners, the cost consultation has continued to include more enriched services, and the requirements for quality have increased, which requires some valuable reference data. Hence, the data accumulation of cost consultation projects has become an important task. In recent years, people began to extract data from the past to guide future investment plans, so data extraction and applications have become popular.

It is a critical issue of glass refractive index measurement that enhancing low contrast slit image. In order to solve this problem, the paper proposes a solution that is feasible and adaptive to enhancing low contrast image in engineering. The CLAHE algorithm is used to globally preprocess the slit image acquired by CCD in the meantime and adaptive smoothing filtering is used for filtering. The improved stretching window is used to suppress the brightness of the single line in the slit, and enhance the brightness of the slit image to improve the extraction accuracy of the single line. The experimental results show that the accuracy of glass refractive index measurement can be improved to ±5×10−6 in the case of low contrast image, which provides a new method of low brightness and low contrast for improving the measurement accuracy of V -prism refractometer and has a significant in its high precision measurement.

Image fusion is the method of merging information from many images of the same scene taken from various sensors. In this paper, a fusion method based on CLAHE and sparse representation is proposed, which can effectively extract the texture detail information of visible image and infrared image. Firstly, CLAHE and adaptive smoothing filtering is aimed to improve the contrast of the image. Sparse representation is aimed to fuse visible and infrared image. Experimental results show that the proposed algorithm can obtain state-of-the-art performance than DWT and NSCT algorithm.

The Lhasa River basin is the economic and population center of Tibet and has abundant resources. Due to its harsh weather condition, high elevation, and inconvenient accessibility, few studies have focused on heavy metal distributions in this region. In the present study, to investigate the dissolved trace metal pollution and its controlling factors, 57 water samples from the Lhasa River and its tributaries were collected during three water flow regimes in 2016. The data on the dissolved fraction revealed that the Lhasa River basin appeared to have no to low pollution levels. However, the Lhasa River water showed alkaline characteristics which may affect the presence of heavy metal elements in a dissolved fraction. The concentration of heavy metal elements in colloidal or particulate matter therefore needs attention. Multivariate analyses were performed to determine the significant relationship between the data and to identify controlling factors for dissolved heavy metals in the study area. The results suggested that Mn, Cd, Cu, and Zn originated from a natural geological background, whereas Pb originated from mining drainage and As was influenced by geothermal flows. The concentration of dissolved heavy metals in the Meldromarchu tributary was greatly affected by the mining drainage water, while that in the Tolungchu tributary was greatly influenced by the geothermal water sources. This paper provides the first comprehensive analysis of dissolved heavy metal pollution characteristics and the controlling factors of pollution during the three different water flow regimes of the Lhasa River basin.

National Natural Science Foundation of China (Grant Nos. 61303263, 61309034) Fundamental Research Funds for the Central Universities (Grant No. 2015XKMS086) China Postdoctoral Science Foundation Funded Project (Grant No. 2015T80600) National Natural Science Foundation of China (Grant Nos. 61303263, 61309034) Fundamental Research Funds for the Central Universities (Grant No. 2015XKMS086) China Postdoctoral Science Foundation Funded Project (Grant No. 2015T80600)

Spatial distribution of arsenic(As) concentrations of sediments collected form ten medium-small scale lakes in Lake Dongting Plain was investigated,and the As pollution degree was evaluated using the geo-accumulation index.Average value of As sediment concentration from 10 lakes was 15.8 mg/kg,which varied from 10.1 to 33.7 mg/kg.It indicated that As sediment contamination was relative low.As to spatial distributions,the average contents of As in the superficial sediments were from high to low in the sequence of Yueyang South Lake,Bajiao Lake,Huanggai Lake,Anle Lake,Maoli Lake,Liuye Lake,Dong Lake,Shanpo Lake,Datong Lake,and Beimin Lake.As concentrations in the lake basins were from low to high in sequence of Lishui catchment(13.1mg/kg),Ouchi catchment(13.4mg/kg),Yuanshui catchment(16.2mg/kg),and lakes at outlet areas of Dongting Lake(22.4mg/kg).Degree of As pollution in lake sediments aggravated gradually from the upstream to the downstream of Lake Dongting drainage.Sediment sample analysis from 4 cores(Datong Lake,Huanggai Lake,Bajiao Lake and Shanpo Lake) showed that As had accumulated in sediments and increased from the bottom to the surface(30-0cm).Geo-accumulation index analysis showed that pollution level at 22 sites from eight lakes were none,and 7 sites from five lakes were at Level I.As a whole of Lake Dongting drainage,As pollution level in the superficial sediments was low.

Different land‐use managements accompany different land‐use objectives in the changing phases of household economic development. These management changes lead to a number of changes in soil nutrients such as in soil organic matter (SOM). This article, with support from global positioning system (GPS) and geographic information system (GIS) monitoring, analyses and compares SOM change in an area of urban fringe in north China from 1982 to 2000 and then from 2000 to 2006. SOM increased by 27% (5.43 g kg‐1‐6.90 g kg‐1) during the first period but decreased by 7% during the second. In the first period, with the implementation of the “Household Responsibility System”, material inputs, especially of fertiliser was very high when the central household objective was to “have a full stomach”. Yields also increased quickly, so there were corresponding increases in the amount of organic materials returned to the fields and SOM also increased during this earlier period. In the second period, household object...

It is well known that most saline soils have salt accumulation at the soil surface and the root zone due to the capillary movement of saline groundwater and subsequent evaporation. The criteria for classifying soil as saline taxa are different in different soil classification systems. In Chinese Soil Taxonomy (CST), soils that have a salic horizon starting within 30 cm from the soil surface are named as Orthic Halosols. In the World Reference Base for the Soil Resources (WRB), soils that have a salic horizon starting within 50 cm from the soil surface are named as Solonchaks. In the US Soil Taxonomy (ST), soils that have a salic horizon starting within 100 cm from the soil surface are named as Salids. In China, a large area of saline soils was reclaimed for crop production. This chapter describes some soil profiles that were classified into saline taxa in CST, WRB, and ST before they are reclaimed, to see if these soils, after a long history of irrigation, are still classified into saline taxa in the three soil classification systems. The results showed that the salts were leached into certain depth, the salic horizons were observed at different depth from the surface, many profiles could not be classified as Orthic Halosols as identified earlier, some of them could not be classified as Solonchaks, and few of them even could not be classified as Salids. With a long irrigation history, the depth of salic horizon is related to the amount of irrigation water and irrigation models. When more water was used for irrigation each time, the salts were found at deeper layers. Relatively the surface irrigation leached the salts deeper than the drip irrigation. According to the present study, we suggest that the criteria of ST should be taken in order to keep the reclaimed saline soils in the saline taxa, i.e., soil classification should not be changed by irrigation. We also suggest that more soil survey should be taken for discovering how much water was used in normal irrigation models and how deep the salts were leached under such normal irrigation models. Through analyzing large amount of data, especially those data coming from reclaimed saline soils, the depth and index for salic horizon should be redefined to keep the reclaimed saline soils in the saline taxa of soil classification systems. In this chapter, we examined the criteria of saline soil classification and made some suggestions by citing other scholar’s research results published in the scientific literature.

In this paper, we first present a new secondary construction of bent functions (building new bent functions from two already defined ones). Furthermore, we apply the construction using as initial functions some specific bent functions and then provide several concrete constructions of bent functions. The second part of the paper is devoted to the constructions of resilient functions. We give a generalization of the indirect sum construction for constructing resilient functions with high nonlinearity. In addition, we modify the generalized construction to ensure a high nonlinearity of the constructed function., Comment: 27 pages

In order to realize farmland quantity and quality protection and socioeconomic development coordination, this paper took Shunyi District, Beijing as a case, based on quality evaluation of farmland status quo (2009) and other planning systems, the quantity and spatial distribution of prime farmland plots in Shunyi District were identified. And the results indicate that, the amount of planned prime farmland plot (PFP) is 270.67 km2, within which the amount of first grade prime farmland is 129.10 km2. Additional 11.56 km2standby PFPs were planned to balance future encroachment by urban growth, strategic projects and other construction land. This research can provide proposals and theories for Chinese farmland protection and management.

The spillover of Quasi-public goods attributes make reverse logistics become a part of the responsibilities of the Government at present. Therefore, the evaluation of reverse logistics management efficiency has become an important indicator to evaluate the responsibility of local governments. In order to provide a more scientific and effective decision making of resources distribution, this paper establishes a comprehensive evaluation model of thinking closer to human being by introduces RBF neural network model which has powerful vector classification and fast computation to the qualitative and quantitative analysis based on the TOPSIS evaluation results of reverse logistics management efficiency. The example shows that the model is more generalized to promote the use of.

In order to find out effective methods to improve scientific literacy level of contemporary college students, this study establishes system of evaluation indicator in the field of scientific awareness degree, scientific understanding degree, scientific influence degree and scientific attendance degree. The study uses AHP to grant each indicator right, adopts CQA (Classification Quantification Assignment) as evaluation and puts forward increasing college students' scientific activities in the light of evaluation results.

The enterprise development pattern at the cost of environment has been questioned constantly. In people's opinon, the enterprise should be responsible for social and environmental responsibility, and should bring environmental impacted target into the assessment of productive efficiency. In connection, with the issue of assessment on environment impacting production efficiency, this paper divides assessment target into three levels such as input, output and emission, utilizing fuzzy theory and RBF network technology to establish the model for the assessment on the environment impacting production efficiency, and using empirical examples to make network training and assessment. Through comparing BP neural network model and DEA assessment model, it is found that the assessment method combining fuzzy theory with RBF network has obvious advantage and feasibility of fast constringency and undivergent primary simulated value.

The factors that influence on the improvement of the innovation ability in an area are extensive. In order to separate the facilitated function of the logistics from a lot of factors, this paper adopts the analysis method of grey-relationship principle divisor to screen out the evaluation target of the innovation ability of logistics, and establishes the evaluation model of NN of the innovation ability of zone logistics, also according to the NN having the unique functions on the aspects of dealing with the vague, random, large-amount, low-precision information, and so on, and in order to prove its practicability, this paper uses this model to evaluate the innovation ability of the logistics in northeast area. The research indicates that this method debases efficiently the complex degree of network caused by multiple target evaluation, advances the performance of network, which doesn't only evaluate the discretion of innovation ability in different areas, but also can find the reason that causes the differences, through the comparison of each divisor. Besides, comparing with the arithmetic of BP of principle divisor, the evaluation model of NN basing on the analysis of grey-relationship principle divisor can make the evaluation goal more definite, which improves the precision of input data of network, so that it reduces the error more effectively.