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Online since: November 2014
Authors: Jun Chi Ma, Kai Xu Liu, Bao Hong Fu
In recent years, Daqing Oilfield invested a lot of money and technology On Field of information technology, established various channels of professional data collection and processing, build a unified database of various types of professional data, achieve a unified management of the data center.
Name Code Master Code 1 Annual statistics TJND 2 Enterprises QSYDW 3 Hashtag JH YES 5 Tectonic unit name GZDYMC 6 Structural unit code GZDYDM 7 Exploration project KTXM 8 Well Category JB 9 Exploration project category KTLB 10 Location DLWZ 11 Contract Code HTQH 12 The well seismic line number JPDZCXH 13 Stake ZH 14 Measure the distance to the line DCXJL 15 Waters Location SYWZ 16 Oil and gas fields YQT 17 Local construction code JBGZDM 18 Measurement Date CLRQ 19 No survey team CLDH 20 Wellhead ordinate JKZZBX 21 Wellhead abscissa JKHZBY 22 Ground elevation DMHB 23 Wellhead longitude JKJD 24 Wellhead latitude JKWD 25 Standard pound sign code BZJHDM Log database General structure of log database shown in Table 3.
Online since: August 2014
Authors: Zhan Kun Zhao
The data contents in the database can be updated by the maintenance professionals and be archived when simultaneously enter data into the database, which can reduce the amount of duplication work and ensure the data be archived timely.
Data flow classifier algorithm in the application of water quality environment [J].
Online since: January 2012
Authors: Jia Yu Tong Li, Xin Jun Yan, Ke Bin Shi
Compare to other finite element programs, it shows more convenient and professional for it focuses on geotechnical issues.
(1) Assumption of failure surface is not required, result will directly show us the position of the failure surface; (2) Constitutive relationships can be fully considered by method of finite element as well as complicated boundary conditions; (3) Repeated trial are not needed by the procedure named Phi-c supplied by PLAXIS; (4) PLAXIS focuses on geotechnical issues, so that it is more professional in this area than other similar finite element programs.
References [1] Zuyu Chen: Soil slope stability analysis (Water Publications, China 2003), in Chinese
Online since: July 2013
Authors: Tong He Sun, Zhi Guo Bai
Ecognition provides professional classification tools: multi-source data fusion; Multi-scale segmentation; Based on the supervised classification of samples; Based on the fuzzy classification of knowledge; Artificial classification; Automatic classification[4].
Run Ecognition, select Classificition>Edit Class>Insert Class, to generate water, urban, residents, cultivated land, forest land and unused and. 2) Insert the classifier.
Yi Kang user manual in Chinese.2006 [4] Martin Baatz,Ursula Benz,Seyed Dchghani,Markus Heynen,Sstrid Hǒltje,Peter Hofmann,Iris Lingenfelder,Matthiass Mimler,Malte Sohlbach,Michacla Weber,Gregor Willhauck. eCognition professional 4.0 user Guide.
Online since: December 2012
Authors: Feng Li, Hong Zhan Liu, Xiao Ling Zhang
For urban water supply, emergency water supply capacity building is the key to ensure security of water supply in the crisis conditions.
Analysis of water assurance level The total water resources and water status Total water resources Qujing located in the watershed zone of the Yangtze river and the pearl river.
From the amount of water resources, the water production of four reservoirs is about two times that of urban water consumption, and can basically meet the city's current water demand.
Water chemistry type is HCO3- Ca, the water quality reach class II water standards, it is quality groundwater sources.
In addition, instructing the relevant professional functions to set up observation points, for purpose of understand the dynamic changes in groundwater level and water quality, and maintenance of emergency water supply system to normal operation.
Online since: July 2014
Authors: Wen Ya Ye, Xiao Qing Wu
Table 2 Concrete mixture and properties of pier Part Grade of concrete Theory admixture Cement Fine aggregate Coarse aggregate additive water pier C20 1 2.12 2.92 0.01 0.59 Bearing tray C25 1 1.83 2.74 0.01 0.52 Part Grade of concrete Construction admixture amount per cubic (kg) Cement Fine aggregate Coarse aggregate additive water pier C20 356 754 1041 3.56 210 Bearing tray C25 394 720 1081 3.94 205 The piles were poured with two round-ended steel formworks and 1.8cm thick bamboo plywood in the middle section.
The deviations of all aggregates’ weight are smaller than 0.5%, while of water and additive are smaller than 0.1%.
The admixture efficiency for water reduction, cement paste fluidity, flump loss complies with the Standard for JM series concrete admixture (Q/320JJK04-2001).
This solution must be performed by a professional team with experience.
In view of the hydration heat treatment, on the basis of heat preservation measures, increase the dosage of admixture in low hydration heat; the internal layout of the cold water pipe in the pier with a circular cooling measures is better.
Online since: January 2012
Authors: Hong Yuan Zhang, Ying Hong Liu
A Study on Risk System of Water Conservancy and Hydropower Engineering Hongyuan Zhang Changchun Institute of Technology (130012), Jilin of China Zhanghongyuan1970@126.com Yinghong Liu Changchun City Experimental High School (130000) Jilin of China pronounce@eyou.com Key Words: Water Conservancy and Hydropower Construction Project; Risk Management; Risk Identification; Risk Assessment Abstract: Water conservancy and hydropower projects are the important parts of national capital construction.
Since the reform and opening up, it has been 30 years,construction trade develops fast and the construction market takes initial shape.Butwith the constant development of the reform and opening up and national economy,higher request is put forward in construction engineering and construction trade, withmany characteristics of large investment, long time, high construction difficulty, complicated technology and engineering participants in water conservancy and hydropower construction project, and many unforeseen factors occur in construction process.
Transferring risks includes two ways: selling, namely risks are transferred to other units by buying and selling; contracting, namely to obtain financial engineering services from the external of executive organization, then risks are transferred; insurance and guarantee, insurance is a commonly used method with only a company pays premium to the insurance company and can it will get compensation when accident occurs, and guarantee refers to the promise that other corporation banks etc. take indirect responsibility for project risk, and through the commitment, owners can transfer uncertain risks to guarantors. 3 Examples for Risk Management of Water Conservancy and Hydropower Construction Engineering Project Water Conservation Bureau of Baicheng City of Jilin Province is the governing unit of engineering construction, whose annual production value reaches RMB 200 to 300 million Yuan and mainly involves in more than 10 construction engineering projects of reservoirs, dams, hydropower
station, and the farmland water conservancy project etc..
In addition, through the engineering silent price contract, we shall fully depend on and play the role of the professional role of financial consultants and financial supervision etc. a series of control measures and methods, make the actual investment of the construction project controlled in the planned target investment values. 3.2 Strengthen the Core Position of Engineering Contract Management Market economy is the legal economy and credit economy.
Online since: May 2010
Authors: Ju Ling Qiao, Fang Liu, Wang Miao
Combined with the reality of regional water resources management, the study discusses the information collection, processing and transmission network of regional water resources, the database system of water resource management, integrated business management system and the digital water management support system.
It is necessary to hasten the unified management of water resources, and we need integrated management of surface water, groundwater, water quantity and quality.
The water resources information collection and transmission network includes flood control communication systems, water quality monitoring and evaluation systems, and water and soil conservation monitoring systems.
By the fixed, mobile, automotive and other water quality information collection methods, we can monitor regularly conventional information, find water pollution emergency information rapidly, and provide water quality information services and trends to make forecast of water quality in time.
The establishment and maintenance of the data center rely on different professional sectors, but the services provided by them should not be limited to the department itself.
Online since: October 2011
Authors: Cong Shen, Jian Xiang Guo, Lin Li, Jin Fei Sun
Heat transfer between gas-solid two-phase flows and water in single-tube is simulated.
Water flows in the horizontal tube at the speed of 0.05m/s.
The water closer to the wall has higher temperature than that near the center axis.
As shown in Fig. 5, the outlet temperature of water increases with the smoke velocity.
References [1] Guohua Zhao, Yanyu Zhao, Hongchao Chen, The research and practice of fluidized bed heat exchanger, Higher Voeational Edueation Journal of Tianjing Professional College. 12 (2003) 38-39
Online since: July 2011
Authors: Jing Zhou, Ting Ting Guo, Ying Li
Second, enhance the professional training of the workers.
At present, almost every rural family has its own solar energy water heater in village in Beijing, as shown in Fig. 3.
The solar energy water heater of better quality is about 800 Yuan per one.
There is a minor part of the rural family not have a solar energy water heater and they choose public bathroom.
Solar energy water heater in village Figure 4.
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