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Online since: July 2012
Authors: Dian Can Li
Large number of enterprises relying on technological progress, improving equipment and the implementation of scientific management, lay a material foundation for improving the quality; strengthen the rules and regulations and professional ethics building, generally carry out quality publicity and education, then national quality awareness and quality of staff have been greatly improved; for quality laws and regulations have been constantly improved and the quality work has gradually embarked on the legal track, the external environment prompting enterprises to improve the quality is gradually taking shape.
When dried electrode is placed in the air, coating will absorb moisture from the air, the longer the time, more water absorbed, and with the improvement of welding rod strength grade, the allowing time that the electrode can be stored in the atmosphere is shorter.
Ways to prevent pores are: to select the appropriate welding current and welding speed, carefully clean water, oil and rust at the bevel edge; keep, clean and dry welding materials strictly according to the requirements; adjust the chemical composition of the flux and change viscosity of slag; do not use deteriorated electrode. when find electrode coating deteriorated, flaking or weld core rusted, the range of application should be strictly controlled; for submerged arc welding, it should select the appropriate welding parameters, especially the sheet metal automatic welding, the welding speed should be as small as possible, when using a DC welding machine, connection location of welding cable should be as far away from the weld terminal as possible to avoid the secondary magnetic field that some of the welding cable generate on the workpiece.
Quality of Professional Theory and Implementation (Intermediate).
Online since: November 2010
Authors: Jie Ping Han, Ya Qiong Wei
In contrast, industry cluster is an “innovation chain” mechanism based on information and knowledge relationship, which can be described as follows: many professional industries and relevant supporting institutions concentrate flexibly in certain areas, form intensive cooperation network, and then, embedded in local innovating social cultural environment [2].
At the same time, lots of IT professionals migrate among enterprises, which prompt transmission of tacit knowledge in ICC. 3 The causal analysis of ICC 3.1 The status of ICC The ICC, with vigorous vitality, is in one of the most significant economic features in the industry growth in developed countries, and becomes the core of sustained economic growth in a country or an area.
The common features in the development process of these ICC are that these areas all develop and accumulate among a large number of professional SMEs, and with high degree of specialization among enterprises, fast flow rate of knowledge and information, flexible system environment, and good momentum development of social cultural environment that is beneficial to the innovation development, besides, the regional economic growth speed is fast, too [5].
Industry cluster can cause gas, water and other infrastructure construction, to reduce current expenditure.
Online since: January 2006
Authors: Han Zhu
It should be mentioned here that all the measurements and testing reported in Table 1 were carried out by trained professionals and the job quality was good.
/cu ft) 8.3 cm (3.25") 33.2 15 1.80 MPa (260 psi) 2.55 MPa (370 psi) 3.03 MPa (440 psi) * extra water was added, **extra water was added the second time.
SRP project is to repair water cannel by spraying rubber shot-crete.
Various mid-rang and high-range water reducers have been tried.
Yet, at least one type of high-range water reducer has worked satisfactorily.
Online since: March 2015
Authors: Hua Xing Chen
Project Background The karst (also known as the Karst) is a soluble rock in the chemical and physical dissolution in water, producing grooves, cracks and voids, and because the collapse of cavity roof , so that the surface generated sinkhole, depression and other phenomena and effects in general.
Table 2, Karst ground subsidence prediction reference standard Basic Conditions The main factors Level factors Index points Water - collapse Power Water level (40 points) Water level can fluctuate between soil, rock interface up and down 40 Water level cannot fluctuate between soil, rock interface up and down 20 Covering layer- collapse substance Properties and soil structure of soil(20 points) Clay soil 10 Sandy soil 20 Weathered sandstone and shale 10 Pluralistic structure 20 The thickness of soil layer (10 points) <10m 10 10-20m 7 >20m 5 Karst collapse and storage conditions Geomorphology (15 points) Plains, valleys, karst depression 15 Valley slopes, hills 5 The degree of development of karst(15 points) Funnel, depressions, sinkholes, melting tank, stone teeth, shafts, underground rivers, caves more 10-15 Funnel, depressions, sinkholes, melting tank, stone teeth, shafts, underground rivers, caves scarce 5-9 3.4Majia highway Karst VenueStability Zoning Majia highway Karst venuestability
(2) karst water-rich region and excretion belt
Karst moderate growth area Basically stable area 5 K9+500-K12+300 Groundwater in fractured water main ,fissure poor permeability.
[3] Liu Ruming, engineering geology karst areas in Yunnan highway analysis,Highway Engineering Geology, China Institute of highway engineering geological professional committee, 1997 Section 3 [4] Highway roadbed design specifications(JTG D30-2004)
Online since: August 2013
Authors: Xiao Jie Chen
Effect of planting area, plant community distribution, water system, micro topographic condition on the whole ecological environment of the city is very outstanding, but also directly affect the construction monomer design.
In the sports building using renewable energy examples have occurred in our country for a period of time, such as Wuhan Ying Tung natatorium, Fujian swimming Museum and Kunming Normal College Swimming pool, using solar water heating system heating energy saving water loss.
George had held 1996 Atlanta Olympic Games swimming competition Polytechnic University swimming pool, as shown in Figure 3, a huge barrel which approximately 3000 square metres of arch roof is composed of 2856 blocks of solar semiconductor crystal board, the photoelectric system at a cost of $5200000, the two part of the solar crystal photoelectric plate which is composed of a heat collecting plate and solar hot water system the edge angle of the smaller, in fact it is built as a demonstration and research project, the experiments show that, quite ideal use effect, solar panels can provide hot water for constant flow like water pool, photoelectric system could be generating 400000 kwh per year.
In addition, the solid waste, water saving, wastewater treatment and water recycling system of comprehensive utilization of wetland landscape, environment and other environmental protection measures will be with the technology become the good choice for sports facilities construction.
The scale of construction advanced guidance and advice in areas such as venue construction management system of Guangdong sports are often is more conservative, while the professional Consultants Co for sports architecture planning intervention is likely to increase scientific scale control.
Online since: January 2014
Authors: Qing Kun He, Chang Ying Shi
It was discussed that marine faces and continental facies, oxidation environment and reducing environment, the depth of water and salinity influence on sedimentary rock, respectively.
Then the influence of marine faces, continental faces, oxidation environment, reducing environment and the depth of water and salinity on sedimentary rock was discussed respectively.
Moreover, sedimentary structure meticulous can not be observed through drilling cores and professional drilling data obtained is not abundant.
It has been widely used the content of Fe, Mn, Sr, Ba, B, Ga, Rb, Co, Ni, V etc and the ratio of Sr/Ba, Fe/Mn, V/Ni, Fe3+/Fe2+ to distinguish marine faces and continental faces, oxidation environment and reducing environment, the depth of water and salinity as well as other sedimentary characteristics.
Online since: November 2014
Authors: Stefania Liuzzi, P. Stefanizzi
It can be also produced by mixing the raw components together with a specific amount of water.
is not water-resistant It must be sheltered against rain and frost, especially in its wet state.
is ideal for do-it-yourself construction Earth construction techniques can usually be executed by non-professionals people.
absorbs pollutants It is a fact that earth walls can absorb pollutants dissolved in water.
Fig. 26 shows the water vapour resistance coefficient (µ).
Online since: June 2011
Authors: Fedali Yamina, Bourmada Noureddine, Mebarek Djebabra
· Biological (B2): pasteurization scale (temperature / time), a weak pressure of hot water circulation and temperature of pasteurization is superior to 90°C as well as bad cleaning.
· Training of professional Staff
· Decrease water and energy consumption by professional staff
Online since: January 2012
Authors: Xin Huang, Nan Jun Lai
Discoveries mainly include: founding many fields in the heave margin of Shijiu lump, which become a new growth point of reserves; founding 20-2 field north of Jinzhou in Liaodong Bay; expanding the Yellow River Mouth successfully, leading the reserves to continue to expand; Weixinan rolling exploration building on continuously; the exploration in the deep water getting new breakthrough that discovering a new natural gas which is called Liuhua 34-2, and evaluating the Li bay 3-1 gas field successfully.
Besides, government should establish national overseas development fund to reduce enterprise burden, support enterprise exploration abroad, and reserve the right of exploring, developing, producing oil and gas and sales franchise in Chinese waters.
Furthermore, CNOOC should build a strong talent mechanism, absorb and import high-level professionals for long-term stability and development of CNOOC, strengthen the cooperation with foreign enterprises and domestic enterprise alliance, introduce advanced technology and management philosophy to improve the competitiveness of CNOOC constantly.
Online since: December 2014
Authors: Yu Li, Ze Hong Li, Liang Yuan, Yuan Yuan Shi, Shi Feng Li
Hotel and restaurant energy consumption and carbon emission mainly are air-conditioning system (all air systems and fan coil + fresh air system) and hot water circulating pump systems.
Table 3 Methods on Public Building Energy Consumption and Carbon Emission Softwa-re Develo- per Main function Input or output Advantage Disadvantage BLAST Univer- sity of Illinois Industrial cooling and heating load calculation; air handling systems and electrical equipment energy consumption Input file by a special module HBLC in the Windows or directly edited in Notepad Friendly Windows-based interface; structured input file; energy consumption analysis under thermal comfort, high-intensity or low-intensity radiation and varying heat transfer coefficient Professional knowledge and deep understanding of engineering remand DEST Tsinghua Univer- sity Annual building hourly calculations of temperature, air conditioning load, AHU equipment load and checking, wind, water network and refrigeration station AUTOCAD embed; interface visualization; a "section design, section simulation" design thinking Support more complex projects, such as multi-building, sloping wall; enhanced thermal characteristics
ASCII text-based input and output files The most powerful modeling software; BDL kernel is used to the other softwares; very detailed hourly building energy analysis report; can to used for complex structure and function DOS operating interface; specialized training to solve input difficulty; high professional knowledge requirements; longer running time Energy Plus U.S.
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