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Online since: January 2018
Authors: Pavel Reiterman, Wojciech Kubissa, Marcel Jogl, Martin Lidmila, Roman Jaskulski
Building industry and related professional fields form approximately 60 % of the entire industrial activities, that is why there is high potential for practical utilization of various waste materials.
The production of this binding material consists of the mixing of fluidized fly ash together with CaO, then is added technology gypsum water.
This detrimental effect was compensated by the increasing water dosage, what is evident on the composition of mixtures S3 and S5.
Generally low values of compressive strength are also caused by the need of water in fresh mixture.
Crucial aspects limiting its practical use are additional swelling during hardening, and obvious need of water to keep suitable consistency.
Online since: July 2011
Authors: Yan Kui Li, Qiao Hui Tong, Yan Yuan
(Fig.1) Changsha is an important transport hub in southern region of China, with advanced and convenient transport in land, water and air.
Most land of JEHP is hilly topography, with undulating terrain, some farmland and water bodies locate between the mountain.
Taking advantage of natural advantage, the mountains and water and the open space of campus will be integrated in the planning in order to create a eco-industrial park of 21st century.
The remaining natural mountain, the public service area and living area is as the park core, which is composed with business center, information center, exhibition center, conference center, professional services, shopping, supermarket, restaurants, fitness center, outdoor fitness facilities, and so on.
And the spatial pattern of mountain-park-water Integration will be formed.
Online since: April 2012
Authors: Zhi Xiong Zhou, Qian Fa Deng, Yu Gang Ren, Bing Hai Lv, Ju Long Yuan
This review paper discusses historical perspectives on resin bond, there are different abrasive products which can be produced by using various types of resin bond such as modification of Phonetic resin and a new water-soluble resin.
With characteristics such as the variety of sources of raw materials, low cost, easy to professional production etc, resins are widely used as bond of fixed abrasive products.
Water-soluble phenol-formaldehyde and urea-formaldehyde resins were the first to introduce the manufacture of abrasive products.
Yuan julong, who use SSB (water-soluble resin) as bond resin, successfully developed a super-precision grinding/polishing of semi-bonded abrasive tool [23].
With advantages of its initial viscosity, wear resistance, retention, water-soluble resin are gradually as bond to manufacture precision grinding wheel.
Online since: August 2013
Authors: Meng Hui Gao, Bin Chen
Table 1 Calculating parameters of soil layer Advantage Disadvantage Beijing The comprehensive economic strength Talent resources Science and technology innovation ability Urban function Scale of industrial agglomeration International communication skills Natural resources Land price Urban expansion space Coastal locations Water resources shortage Tianjin Coastal region The traditional industrial base Open door policy Natural resources Urban expansion space Regional markets vacancy Water resources shortage Langfang resources Location conditions land Spatial and land price Price of labor force The comprehensive economic strength Urban agglomeration Industrial base The level of technology development High-tech talent Water resources shortage Market integration strategy Achieve market sharing is the key to promote integration,and also is the difficult point.
In the help and support of higher authorities in the future, Langfang should enhance communication with Beijing, Tianjin, further integration of the three ground-water, electricity, gas, telecommunications, tourism and other software services, run remote settlement, off-site ticketing, remote business of shipping, remote paying even remote card, so as to achieve maximum integration services resources and mutual win-win.
Professional Time and Space [J]. 2009, 8 In Chinese [2] Jianlin Song.
Online since: January 2013
Authors: Ren Jang Wu, Mei Yun Chen
But the retention times for the above ropivacaine assays were between 6.0 and 8.9 min, which are too long for a professional clinical anesthetist to make a decision on patient compliance and safety.
The resulting solution was diluted by adding 90 ml of water under constant stirring and a dark brown suspension was obtained.
The suspension was further treated by adding 30% H2O2 solution (10 ml) and 100 ml of distilled water.
The resulting graphite oxide suspension was washed by repeated centrifugation, first with 5% HCl aqueous solution for several times and then with distilled water until the pH of the solution becomes neutral.
The GO material was obtained by adding 180 ml of water to the resulting precipitate and thoroughly sonicated to attain a uniform suspension of GO.
Online since: March 2012
Authors: Yan Jun Tang, Zhi Yuan Yang, Hai Zhen Shi
Experimental The Old Corrugated Containers (OCC) fibres used in our study from a local professional paper-making factory were cut into flakes.
Deionized water was used in all solutions for fiber treatment.
OCC fibres were firstly chipped into flakes (2cm×2cm) and then soaked in deionized water for 24 h.
After each lay-by-layer assembly process, the treated OCC fibres were intermediately washed with water at room temperature to remove excess polyelectrolyte.
After the layer-by-layer self-assembly treatment, tiny fibres were covered with polyelectrolytes, preventing pulp from swelling because of water adsorption to some extent.
Online since: January 2013
Authors: Ivana Turekova, Jozef Harangozo, Zuzana Turnova, Karol Balog
The foam has often the expansion factor even 1:50, i. e. from 1 mm thick coating the insulating foam 50 mm in thickness is formed. [3] Measurement of heat flux by radiation panel This instrument was constructed for experimental tests on the basis of experience gained from numerous professional consultations and comparison of existing methods with the aim to determine the initiation of material ignition in dependence of the heat flux rate.
Regulation options for radiator power were as follows: 5 kW, 10 kW a 15 kW, depending on the number of connected spirals. [5] Experimental tests were performed by use of heat flux sensor type SBG01-100, (Fig. 1), which was water cooled.
WL. was used as fire protection, This concerns a white water-soluble coating mass, based on acrylate, containing 60 % of solid matters, forming an insulating foam on the protected surface at fire.
The coating is used for protection of wooden and metallic structures, for protection of electric cables in interior of buildings, without direct acting of climatic effects and/or water. [6] Results of measurements and discussion Principle of experimental measurement consisted in inflammability test of cable specimen surface exposed to a radiating heat flux.
SBG01 manual version 1004: Water cooled heat flux sensor according to Schmidt-Boelter, 2008 [cit. 2011-01-02].
Online since: March 2011
Authors: Dong Hui Wen, Wei Fang Wang, Peng Fei Gao, Chong Da Lu
In the cathode side, oxygen, electron and hydrogen ion occurs reduction reaction producing water under the catalysis of the catalyst.
When the electrode on the bipolar plate is flooded with water, the influence on the gas flow is not as serious as that about the conventional flow field with rectangular section, shown as Fig.4: Fig.4 Sketch of the sections of the different flow channels flooded with water Numerical simulation This paper simulates the novel flow field and the conventional serpentine flow field by the professional CFD (Computational Fluid Dynamics) software Fluent in order to research some key factors which have the significant influence on the operation performance of PEMFC such as the velocity distribution, the gas pressure difference between the inlet and the outlet and so on.
Because the water produced during the operation of PEMFC emerges at the cathode of the bipolar plates, so we main study the flow field at the cathode of the bipolar plates.
Though this situation is favorable for promptly discharging the water produced during the operation of PEMFC, but it can also induce an inadequate reaction which will result in the low operation efficiency of PEMFC.
While the gas pressure difference of this novel intersectant flow field is moderate, this flow field not only can satisfy the requirement for discharging the water timely, but also can save the power used in driving the reactive gases.
Online since: November 2014
Authors: Yuan Liang
Overcome the refraction of water and accurately judge the wrong movements of the students.
So only a few national professional swimmers use such advanced technologies.
b)When put the camera into the water, the depth and the angle from the surface of the water should be appropriate.
It makes up for the deficiency of the traditional teaching method and provides theoretical basis for water sports.
Online since: February 2013
Authors: Chi Yen Shen, Hsiang Min Huang, Shih Han Wang, Yu Chen Chiu
Knowledge of NO concentrations in the exhaled breath of asthmatic patients can help specialist and healthcare professional monitoring and diagnosing asthma [2].
Experimental Tin oxide gel was firstly synthesized and then mixed with aniline precursor. 3 g tin (IV) tetrachloride was mixed with 50 ml of i-propanol in iced water bath for 10 min.
Afterward, the chloride ion in the solution was removed by de-ionized water washing.
Subsequently, the obtained PANI-SnO2 precipitated was rinsed using de-ionized water and followed by washing with 1 N HCl solution.
The copper-based solution was di-water diluted 1% CuSO4 solution.
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