Spinel structure of ZnFe2O4 has attracted widespread attention due to its excellent visible-light-driven photocatalytic activity. The composite photocatalyst of ZnFe2O4 and reduced graphene oxide (rGO) have been synthesized by a facile one-step hydrothermal strategy. A substantially enhanced photoelectrochemical...

The combustion of organics and fossil fuel have led to higher greenhouse gas carbon dioxide production and making global warming a pressing issue. Conversion of carbon dioxide into value-added chemicals and fuels is regarded as a more attractive and promising way from the viewpoints of reducing carbon...

The serious accident is usually accompanied by combustion and explosion of premixed combustible gases in petrochemical industry. The local combustion flame that occurs in the gas pipe will accelerate the propagation and may become to a detonation. The flame propagation characteristics of premixed methane/air...

Phthalates, which were widely used as plasticizer and additives in various consumer products, were found to be associated with reproductive disorders in both men and women through their interaction with endocrine glands. These synthetic compounds, which could interfere or disrupt the normal synthesis,...

In the extra high water cut stage, the remaining oil mainly exists in the channel sand body, and the low and non watered thickness of the reservoirs with poor utilization is mainly distributed in the top of the thick oil layer and the variation zone in the layer. The horizontal well is drilled, the horizontal...

Completion of polymer flooding wells in Second-Class-Reservoir, 46 wells ( 11.1 % ) with interval less than 1m or partial small layers are fully bonded according to logging curves. in principle, some or all of these layers shall be deducted as interval layers before perforation to ensure the development...

Chloroplast ferredoxins (Fd) are small proteins containing an iron-sulfur cluster in photosynthetic organisms. Fd functions as transferring electrons from photosystem I (PSI) to NADP+ via ferredoxin: NADPH+ reductase (FNR). Fd is also the low-potential electron donor to many metabolic and regulatory...

The key photosynthetic CO2-fixing enzyme ribulose-1,5-bisphosphate carboxylase/ oxygenase (Rubisco) is regulated by a protein known as Rubisco activase (RCA). RCA is a soluble chloroplast ATPase encoded by nuclear genome that catalyzes the activation of Rubisco in vivo by the ATP-dependent removal of...

Lack of water resource and nutrient deficiency retard crop production in the light sierozem in Ningxia, China. Biochar and biochar-based ameliorant present a feasible solution to solve these problems. This study investigated the effect of adding biochar or biochar-based ameliorant on the growth of maize...

for the increasing cost of gel displacement and the influence of alkali corrosion and scaling of multivariate composite flooding on production equipment, a new type of living polymer was adopted. The living polymer has well heat resistance, salt tolerance and viscosifying capacity, and its molecular...

A heat pipe photovoltaic / thermal (PV/T) component on the basis of active air-cooled was designed and constructed. The heat pipe evaporation section was used for cooling the back plate of solar panel, and the condensation section was arranged in the air flow passage. A axial flow fan was arranged at...

In this paper, the viscosity of different kinds of biodiesel samples was measured at 10 to 80. A model of kinematic viscosity estimation is proposed with very good fitting to experimental data. The optimized empirical formula has the advantages of small relative error, small error range and no obvious...

The problem of controlling the hydration heat of large volume concrete has been paid highly attention by the bridge project. In this paper, the construction process of large volume concrete in the cushion cap of Extradosed Cable-Stayed bridge is monitored in real time and measures of heat preservation...

Densities of diglycine in aqueous solutions of L-alanine and L-serine were measured at 298.15 K and 310.15 K. The standard partial molar volume , standard partial molar volumes of transfer have been determined. The results show that, the values of diglycine are positive and vary in the sequence L-serine>L-alanine....

It applies hydrodynamic Model MIKE21 HD to complete simulation the characteristics of Bohai Bay,and the tidal level and current are verified with observed data in Huanghua Sea area. In this study, A oil spill model in channel of huanghua harbour was established based on the tidal current field, and keep...

This paper revealed the mechanical characteristics of floor in Gob-side Entry Retaining of Deep Mine according to the geological conditions and mining technical conditions of working face 1115(1) in Guqiao coal mine by using numerical simulation The characteristics of the vertical stress distribution...

The sewage treatment system adopts polymerize aluminum chloride (PAC for short) as a flocculant. In the process of selecting flocculant, various factors such as cost, operation, influent water quality, equipment and so on are comprehensively taken into account. A certain sewage treatment work has selected...

This paper studies the Huangguogan anthracnose infected time and different concentration of 25% Pyraclostrobin EC (1500, 2000, 2500 times) in Huangguogan in different periods (before flowering, after flowering, young fruit period, fruit rapid growth period) control effect on Huangguogan anthracnose after...

The using of artificial reefs can effectively improve the ecological environment of the sea area, restore the vegetation of the sea bottom, and provide a place for fishes to inhabit and avoid the enemy. According to the regional characteristics of the coastal water of Beidaihe,The floating trajectory...

Taking the evaluation of urban environmental reconstruction in urban areas in Wenchuan earthquake as an objective. this paper constructs 6 criterion layers of "location scale", "space environment", "facilities support", "security guarantee", "community management" and "community atmosphere" . Taking...

The original oil in place suitable for chemical flooding in Shengli oilfield is 1.6 billion ton. Though the resource is abundant, the oil recovery is poor due to rigorous reservoir conditions, including high temperature, high salinity, high divalent-cation content, high oil viscosity and severe heterogeneity....

The correlation analysis of the meteorological data and the weekly concentration of the main water pollutants(COD, NH3-N and DO) from seven automatic monitoring stations in Taihu lake basin in 2011 year was carried out. The results showed that there is little correlation between rainfall factors and...

With the proposed national strategy of "New Silk Road Economic Belt" and "21st Century Maritime Silk Road" ("Belt and Road Initiative"), China's ports usher in new opportunities for development. In this paper, PCA method is used to extract the principal components index, and DEA method is used to analyze...

Spherical plain bearings have the characteristics of self-adjusting and self-lubrication, they are widely used in defense, engineering and other fields. However, the spherical plain bearings are easy to fail in the process of work, and reasonable design seems to be very important. In order to save cost...

Based on Lagrange equation, the dynamic model of crane system is established, and the transfer function of crane operating system is deduced. This paper presents a crane anti-swing solution, which is to establish the anti-swing control model basis the input shaping technique. Three input shaping controllers...

In the directional well anti-collision ground monitoring system, with the well depth increases, the ground monitoring signal intensity decreases, which can not meet the requirements of monitoring. A mechanical downhole source capable of providing a certain strength standard signal and capable of resuming...

Deepwater drilling is the key of offshore oil and gas exploration and development. Deepwater BOP system is the key equipment which ensure safety in drilling operation. In order to prevent deepwater well control accidents and guarantee deepwater drilling undersafe and efficient conditions Bayesian network...

Considering the living prototype of elbow joint and the characteristics of serial & parallel manipulators, this paper presents a parallel manipulator PPS-UR to the design of bionic joint, and gains a new bionic design theory. Choice of a new configuration, mobility, singularity and input selection of...

In this paper, the 304 stainless steel components were fabricated on a low carbon steel with thickness about 20 mm by using MIG arc additive manufacturing technology. The surface quality and the distribution characteristic of residual stress of the components prepared with three different arc additive...

The mechanical system of large-scale medical imaging equipment SPECT is complex and expensive, so it is difficult to carry out the reliability test with a large number of physical equipments. The virtual test method is used to evaluate the reliability of the system. The virtual prototype of SPECT mechanical...

Based on KUKA robot processing platform and Robotmaster software, the machining process simulation technology of prosthetic socket positive mold was studied. The KUKA KR210 control system KR C4 is extended with PROFIBUS/DP communication to integrate the machining spindles for industrial robots with machining...

In view of the multi-degree-of-freedom movement characteristics of SPECT, a distributed multi-axis motion control system based on fieldbus was developed. The multi-axis synchronous motion control function was achieved by using CANopen-based motion control technology. A double light curtain measurement...

At the moment, artificial intelligence and increasingly sophisticated algorithms have influenced our lives and civilizations more than ever. The fields of artificial intelligence applications are diverse, potentially far-reaching, and because of recent improvements in computer hardware, some artificial...

Short texts' data sparsity makes them difficult to find out their document-level word co-occurrence patterns, that's why conventional topic models like LDA experience a large performance degradation over short texts. As a derivative product of learning neuro probabilistic language model, word embedding...

The multi-objective optimization design for complicated reinforced cylinder structures was discussed by combining the ISIGHT multidisciplinary optimization design framework. Firstly, the mathematical model of acoustic radiation optimization of cylinder structures was established for sound and vibration...

In this paper, we have considered a phytoplankton-zooplankton system with toxic liberation delay. Firstly, we give the critical values of transcritical bifurcation. Then, we derive the normal forms and their unfolding with original parameters in the system near the bifurcation point by the normal form...

With the popularity of cloud computing, cloud computing enterprises are launching cloud storage services, which are becoming more and more attention and use as an emerging network storage technology. In the application process of cloud storage, object storage service interface is growing rapidly, so...

Writing fluidity is one of the most important quality inspection items in the ball-pen production. In order to realize the automatic inspection of ball-pen writing path quality, this paper developed the methods of threshold segmentation and morphology in image processing by Halcon and Visual Studio....

"Random Forests" is an algorithm developed by Breiman and Cutler in 2001[1]. It runs by constructing multiple decidion trees while training and outputting the classes that is the mode of the classes output by individual trees. It has improved performance over single decision trees, and it is much more...

This article is based on the ecological security of the Hadoop cluster. Combined with the practical application of Kerberos security authentication system in Hadoop cluster, we propose a multi node HA (High Available) configuration in Kerberos, realize Master-Master-Slave design mode and increase redundant...

It is an important core issue in social networks to divide community or group. And, the network node is the mainstream of community division algorithm as the processing object to divide the network. This paper introduces the entropy theory into social networks partition on the basic of studying the concept...

The real-time lane detection and tracking on mobile embedded platform is the key module of lane departure warning and lane keeping systems. In this paper, a framework for lane candidates detection based on improved EDLines and vanishing point estimation was proposed. EDLines directly detects one pixel...

In the current movie box office forecasting research, most of the research is based on the basic features in the movie mining, ignoring the influence of actors in the social media platform on movie box office. This paper proposes to crawl the Sina Weibo and comment data, analyzing the popularity of actors...

Visible light communication (VLC) has recently become one of the most popular research points. VLC can provide not only illumination, but also the data communication. This technique can be applied in advertising system when it transmits advertising information. When we are attracted to the merchandise...

Polymorphous clone of Distributed Reflective Denial of Service Attack traffic has great significance for DRDoS's demonstration, verification, defense, evaluation and scenarios that require DRDoS attack traffic. This paper studies a construction method of features in polymorphous clone of DRDoS attack...

We design an administration system to solve the isolation problem in a multi-user shared network testbed which holds multiple background traffic generators simultaneously running in parallel experiment scenes. Traffic generators embedded in an experiment scene are dedicated to dynamically generate background...

Identification on the comment target contained in online comments plays a guiding role in opinion mining and sentiment analysis. This paper proposes a Directed-Weighted-Network-based model for modeling online comments, which aggregates important information from numerous comments as a whole object for...

The Time-triggered Architecture (TTA) is seen as a widely-recognized design framework for the domain of large distributed embedded real-time systems. This paper derives an elaborated startup scheme and discusses the temporal boundary of it for real-time systems based on TTA, which normally require predictable...

A new TEM model is proposed on the basis of coordination between crew and ATC team and an analysis of the sample data about threat, error and undesired state is conducted by using Bayesian model. The analysis obtains the correlations of the three kinds of safety information above through studying the...

The rapid development of data analyze needs high data quality requirements. The data quality also determine the software quality. This paper proposes a test data deisgn method for evaluating data quality. The paper analyzes the data quality requirement model of typical software applications, considering...

With the progress of science and technology, Internet technology has been widely used in various fields, bringing great changes from people's work and life. At the same time, as an important part of graphic design, visual image system design is applied in various fields such as architecture, medical...

CDIO educational pattern is the latest achievement of the international engineering education reform. This paper obtains the capacity index system of software engineering major based on TOPCARES-CDIO T-C education idea according to the latest industry research. This system can be a very detail foundation...

Fast Fourier Transform (FFT) and its inverse transform (IFFT) are commonly used tools for digital signal processing. They are widely used in various communication systems, especially the communication system based on orthogonal frequency division multiplexing (OFDM) technology. Reducing the cost of multiplier...

This thesis introduces a kind of image accelerator design based on FPGA, Hardware acceleration achieve the purpose of accelerating by increasing operation parallelism, the DMA controller accesse memory, and the DMA controller gives address and control signals, in order to avoid conflict due to multiple...

Due to the fact that computational cost of aircraft engine component level model (CLM) is heavy while memory of engine monitoring unit (EMU) is limited, a machine learning algorithm: exponential weighted - sliding window - kernel recursive least squares (EW-SW-KRLS) algorithm is proposed to replace CLM...

According to investigation, existing works of security testing for Single Sign-on systems (SSO) on the Security Assertion Markup Language (SAML) are based on partially automatic code review methods, which lead to a low level in effectiveness and reusability. In response to these limitations, a new automatic...

When photographing scenic photos, there will be some tourists, cars or other moving objects appearing in photos, which will affect the effect to some extent. Although inpainting technology provides a solution to remove unwanted objects in a single image, it requires a lot of interactions to indicate...

The rapid development of computer technology has been changing people's lifestyle and the mode of cultivation of talents, moreover the more and more mature AI technology has been gradually integrating into each aspect of our daily life. So, people have increasing demand for high-tech talents of the AI...

In recent years, the application of CDIO education model has shown good effect in the teaching of engineering courses, while TOPCARES _CDIO is an attempt to localize the CDIO engineering education model. In view of the advancement of the educational concept, the systematization and wide adaptability...

Computer-aided diagnosis has received intensive study in recent years, especially in an aging society which unforunately has limited medical resources but surging medical demands. It's a challenging work to determine health conditions with knowledge of dynamic successive long-term ECG.RR-Lorenz plot...