The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Geosmin (GSM) and 2-methyl isoboneol(2-MIB) are the major compounds causing the odor of water body. A new method for the qualitative and quantitative analysis of GSM and 2-MIB, which isolated and enriched the odor compounds from the water samples by using Headspace solid-phase micro extraction (HS-SPME), and detected the two substances using GC/MS with internal standard method, was developed. The...
In this paper, the GIS application in the emergency command and status of JDL information fusion model and the characteristics of the five stages are introduced. With combination of GIS and the JDL, studied the characteristics of the campus emergency command, combined with the actual situation and needs, analyzed and re-definition of the five stages of information fusion, information fusion model...
Coagulation-Sedimentation process is to be used for advanced treatment of the effluent after secondary biological treatment of some petrochemical fiber company. By the study of jar tests, operating factors for petrochemical wastewater have been found out, including the optimum coagulant type, the best dosage and the best operating conditions. Mechanism of removing phosphorus was analyzed. The results...
Computational science increasingly relies on the execution of workflows in distributed networks to solve complex applications. However, the heterogeneity of resources in these environments complicates resource management and the scheduling of such applications. Sophisticated scheduling policies are being developed for workflows, but they have had little impact in practice because their integration...
This paper describes two software tools to determine the overall trend of network signals: Matlab and Excel. Their implementation is shown through several characteristic examples from network environment. The appropriateness of different types of trends is also discussed.
We have proposed a network based system for long-term recording pulse rate (PR), respiration rhythm (RR), and body movement (BM) detected by a sensor unit placed beneath a pillow during sleep from pressure variations corresponding to changes in the heartbeat and respiratory motion. In this research, we studied the analysis of the long-term monitored PR, RR, and BM during sleep recorded by this system...
The deflection reasons for long-span prestressed concrete box-girder (LPCB) bridge are still ambiguous. This paper pointed out some outstanding advantages of using fiber optical sensing (FOS) technology in old LPCB Bridge strengthening monitoring. According to certain existing old LPCB Bridge strengthening monitoring example,it presented some direct and indirect monitoring indexes that should be contained...
This paper discusses how to apply the GIS/GPS technology to the common mobile Logistics business to meet the requirements of efficient Logistics management. In the full analysis of GIS (Geographic Information System) and GPS (Global Positioning System) technology superiority in Logistics, this paper focuses on the system design issues and principles, and puts forward a GIS/GPS based solution apply...
Large-scale data-intensive streaming applications in various science fields feature complex DAG-structured workflows comprised of distributed computing modules with intricate inter-module dependencies. Supporting such workflows in high-performance network environments and optimizing their throughput are crucial to collaborative scientific exploration and discovery. We formulate workflow mapping as...
A supply chain is a complex system with numerous members and interrelations. To be able to control and regulate the system's behavior, the different subsystems need to be monitored and the results need evaluated. Thus, a systematic approach is needed, which goal it is to provide the expected information to the right actor at the right time. This paper provides an information requirements analysis...
The intelligent building system integration is a hot topic in the construction sector currently. The processing decision required to give in emergency, is to achieve the controlling, linkage, coordination and optimization goals, providing the time of escaping and passages for supervisors. In this paper, the mutual controlled monitoring and communication technology which is based on dual tone multi-frequency...
The dust concentration and particle size are real-time monitored at the electrostatic precipitator (ESP) entrance and exit by laser measurement with bypass dilution device. The accuracy of the monitor data is improved by the method of collecting and transferring eight sites signal simultaneously. And the data is transferred by RS485 bus and related agreement. The ESP voltage in electric field is real-time...
Qinghai-Tibet Railway has particular geographical position and special climate. Trains fail to work in many special ways. Thus put forward the particular request to rescue technology and equipment. The paper analyses the usual type of train failures and carry out the improvement of rescue technology. According to the special requirements, the paper presents our proposal of operational equipment improvement...
The system of WebMail content and attachments recovery can monitor the network without affecting the performance of the network, check the network for confidential information leakage phenomenon. if found it will store the leak records into the hard disk automatically which will be used as evidence for security sectors. This paper introduces in detail the design and implementation of the WebMail content...
In order to improve the management efficiency and convenience of the access control system in intelligent building, according to the new demand, a network entrance guard management software has been in this paper developed based on original software for single computer system. Inquiring real-time network data, browsing real-time information and long-distance monitoring can be realized by use of the...
In this paper, in accordance with the composition and features of ventilation safety monitoring information fusion system in the coal mine, analyzes the necessity for multi-sensors management. Underground for complex structure, wide area of the monitoring, usually the monitoring process is divided into many small targets monitoring area, the monitoring area of the mine ventilation system security...
In recent years, the GMS countries are becoming the hot point of the direct investment. The total volume of investment from Yunnan grows increasingly. But in the meanwhile, the risk of the host country is hindering the investing countries' positivity. The article takes the SME of Yunnan for example, focusing on two sides, one is the forewarning system, another is the management system, and combining...
Aiming at hydrocracking units and production craft of the company, ESD is designed, and is realized. The system hardware is configured by Tricon of the Triconex, that is constituted by main system, engineer workstation, sequence of events workstation, operation station, detection unit and executive mechanism, it can be communicated with DCS and LAN. The system controlling logic principle is designed...
To improve the effect of existing inter-area oscillation control system in wide area network and multi-Agent system, the paper presents the control collaborative model of the inter-area oscillation based on multi-Agent and PMU for solving the problems presently such as centralized control and delay of wide-area power system in the control mode of the inter-area oscillation. It designs the monitoring...
State Stadium of Costa Rica is the key supporting-construction project of China, because Costa Rica is located in the volcanic active belt in west pacific coast watershed of central American, it is a country there often happens earthquakes. Internal and external arch of the scheduling stadium canopy is a big spanned and high height steel structure. In order to improve construction quality, and to...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.