The development of big data challenges the computing power and communication capability of cloud architecture, but traditional resource-allocation algorithms perform poorly due to the large-scale communication among cloud nodes. In this paper, a dynamically hierarchical, resource-allocation algorithm is proposed for multiple cloud nodes collaborating in big data environment. Using fuzzy pattern recognition, the algorithm dynamically divides tasks and nodes into different levels based on computing power and storage factors. Thus a dynamically adjusted mapping is generated between tasks and nodes. When a new task arrives, only the nodes corresponding to the task level join in the bid. The algorithm takes advantages of dynamical hierarchy to reduce the communication traffic during resource allocation. Both theoretical and experimental results illustrate that the proposed algorithm outperforms the MinMin algorithm in terms of communication traffic and makespan.

Dynamically hierarchical resource-allocation algorithm in cloud computing environment

The Oxygen Society was organized on the American continent in early 1988 and adopted Free Radical Biology & Medicine as its official journal. Also during the past year the Society for Free Radical Research (SFRR) has decided to become a geographically regionalized organization, in which each member society will belong to the new "umbrella" or confederacy group to be called SFRR International.

Free radical biology is in

Waterlogging happens almost in every rainstorm in city roads and the concave type of overpasses in Beijing. It causes to serious effect for the security of people’s daily travel. For resolving this kind of problem, this paper designed a monitoring network by water level sensors and other technologies of internet of things, and developed a monitoring and early warning system for detecting the real-time information of waterlogging conditions in urban roads. This system can capture the real time information of waterlogging depth, make a fast query statistics for certain road or area, and also provide the short message service for the public. It is very convenient for the managers working in department of flood control and command center to collect the real-time information of waterlogging status around urban roads. This is helpful for the local government to perform the correspondingly emergency plan and issue waterlogging information for the public, so as to reduce the impact on the security of people’s travel caused by the suddenly bad weather.

/pdf/design-and-implementation-of-monitoring-and-early-warning-3tye197foz.pdf

Design and Implementation of Monitoring and Early Warning System for Urban Roads Waterlogging

Green algae Cladophora aegagropila, present in cooling water of thermal power plants, causes many problems and complications, especially during summer. However, algae and its metabolites are rarely eliminated by common removal methods. In this work, the elimination efficiency of electrochemically prepared potassium ferrate(VI) on algae from cooling water was investigated. The influence of experimental parameters, such as Fe(VI) dosage, application time, pH of the system, temperature and hydrodynamics of the solution on removal efficiency, was optimized. This study demonstrates that algae C. aegagropila can be effectively removed from cooling water by ferrate. Application of ferrate(VI) at the optimized dosage and under the suitable conditions (temperature, pH) leads to 100% removal of green algae Cladophora from the system. Environmentally friendly reduction products (Fe(III)) and coagulation properties favour the application of ferrate for the treatment of water contaminated with studied microorganisms compared to other methods such as chlorination and use of permanganate, where harmful products are produced.

Effect of ferrate on green algae removal.

In order to evaluate the flood control system of Liuzhou City objectively,on the basis of the analysis of the index system of city flood control system security evaluation and its grading standards,the TOPSIS evaluation method based on analytic hierarchy process was proposed,and the urban flood control system safety evaluation model was established.The method was applied in the evaluation of Liuzhou Flood Control System.The results show that the system is imperfect and falls behind the local economic development.The comprehensive evaluation model can be applied in the evaluation of urban flood control system effectively.

Application of TOPSIS model in comprehensive evaluation of urban flood control system

Physical polarization Water Treatment (PPWT) is a new technology that takes advantage of polarization electric field polarizing water molecules to achieve the purpose of scale inhibition and dissolution as well as killing bacteria and algae. The PPWT device made by Shandong Langkun Energy Conservation & Environmental Protection Technology Co., Ltd and running in the biomass power plant of Shandong Kaitai Group Co. achieved the effects of scale inhibition and solution which are even more superior to the traditional method of chemical dosing. It brings annual water conservation of 147600 m3 and economic benefits of hundreds of thousands to millions for forsaking chemical dosing for a 15MW power unit. Therefore, Considerable economic and social benefits and the goals required by the state to the enterprises of energy saving, emission reduction and environmental protection are achieved.

Application of Physical Polarization Water Treatment Technology on Circulating Cooling Water System of Power Plant

Urban flood control system is in relation to the concentration of the urban population and security of the social wealth, but there has yet to a mature evaluation system. This article establish a security assessment model of urban flood control system which is based on the variable fuzzy set theory. First of all, building an evaluation indicator system according to the influencing factors; secondly, using fuzzy pattern recognition model to introduce model parameters and the time the two variable factors and get multiple levels of membership, then to conduct a consistency inspection; Finally, averaging the effective levels of membership and getting the final evaluation. Choosing the case of Heze in Shandong, it came to the conclusion that the city's flood control system level is between mild warning state and severe alert state, the evaluating result is in accordance with heze flood conditions.

Safety Evaluation of Urban Flood Control System Based on Variable Fuzzy Pattern Recognition

Diamond-like carbon (DLC) films were deposited on the surface of silver nanoparticles (NPs) using two different sets of technology parameters by radio-frequency magnetron arc plasma enhanced chemical vapor deposition (PECVD) in this paper. The probe profilometer, SEM, AFM, Raman spectroscopy, XPS and UV–vis spectrophotometer were used to characterize the film thickness, microstructure, composition and sensing performance. Results showed that the basic vacuum degree had a greater influence on the properties of DLC films than that of RF forward power. The LSPR interface prepared in short time had sensing performance, but the sensitivity decreased with the thickness of DLC films increase. DLC films of higher sp3 bonds content can slow down the decline rate of the sensitivity caused by increasing of the film thickness.

Study on the preparation of dlc films deposited on silver nanoparticles and the sensitivity of lspr interface

This paper deals with an experimental research on wear properties and mechanisms of coated carbide tools in dry turning of 300M steel which are widely used to manufacture the central spindle, wheel gear, aerofoil fastener and so on. Based on Makarow’s theory, the minimum surface wear rate hs = 2.88 μm and the optimal cutting speed v = 200 m/mim were attained under the condition of the feed rate f = 0.1 mm/r and the depth of cut ap = 0.15 mm. Analysis carried out with the SEM suggests that adhesion of workpiece material and chipping are dominant wear mechanisms. There was no observation of oxygen existing based on the analysis of EDS which indicated no oxidation wear generated during the turning machining.

Study on Wear Properties and Mechanisms of Coated Carbide Tools in Dry Turning of 300M Steel

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Application of Physical Polarization Water Treatment Technology on Circulating Cooling Water System of Power Plant

Safety Evaluation of Urban Flood Control System Based on Variable Fuzzy Pattern Recognition

Study on the preparation of dlc films deposited on silver nanoparticles and the sensitivity of lspr interface

Study on Wear Properties and Mechanisms of Coated Carbide Tools in Dry Turning of 300M Steel