Search results

For example, in process control comprehensive experiments, one is the fluctuation water tank double let property test experiment.
Through the experiment we can get fluctuation water tank characteristic curve, and then get second order system transfer function.
In the control panel on the water pump 1, electric control valve.
Setting valve opening value and enable the water level in a equilibrium position, then write down valve opening value.
Professional technology:52-53(2010) [3]Lian Zhikai.

New type of hydraulic classifier classification chamber adopted deep cone structure.In the conical graded indoor, the rising water flow velocity gradually reduces from the bottom up, the coarse particles gradually sedimented the gradual rise water, became the underflow.
New type of hydraulic classifier used two two phase of water supplying.
It setted the second supplying water under the first supplying water, made the underflow to grade again, the fine particles in the underflow hade a second chance to rise, reduced the mismatch content, improved the efficiency of classification.
The classification test was conducted with the coarse slime from Yanma coal preparation plant in Jiaozuo, setting two modes (A not open the second supplying water, B open the second supplying water ) for hierarchical effect comparison.
Acknowledgements This work was financially supported by the Mineral Processing Engineering, National Professional Characteristics(TS12245), and Henan Polytechnic University crosswise tasks(H12-468).

Professional Knowledge.
It demands much professional knowledge and more experience during the decision-making for environmental emergency.
Environmental Emergency Cases May Cover a Wide Rage of Professional Fields.
Villagers suspected that illegal pollution discharge by the smelting company in the village contaminated soil and water and led to excessive lead in children’s blood.
Secondly, the environmental protection department monitored the local water and soil pollution.

The alternative schemes of sewage disposal technology are three-ditch oxidation ditch, SBR, A2/ O and AB respectively, which are symbolized by A1, A2, A3 and A4.The selected evaluation indicators are mature degree of technology(a1),net present value of cost (a2),floor area(a3),level of operation and management(a4),level of effluent stability(a5),phosphorous removal and denitrification capacity(a6).Net present value of cost and floor area were obtained from the general estimate of the project, while the rest indicators were acquired by the calculation of the experts and professionals.
[5] LIN M,HANG S J.The application of fuzzy decision–making method in the process alternatives of municipal wastewater treatment plant [J].Water and Wastewater Engineering,24(3)(1998):p.6-9.
[9] Chang NB, Wang SF.A grey nonlinear programming method for planning coastal wastewater treatment and disposal systems [J].Water Sci &Technol; 32(2) (1995):p.19-29
(in Chinese) [19] Xu S Q, Hu Z G, Liu Q,et al.Multi-objective decision analysis of diversion standards based on entropy [J].China Rural Water and Hydropower,(8)(2004):p.45-47.
(in Chinese) [22] WANG Zheming,et al.Application of the Gray Interrelated Analysis and Multi-purposes Decision-making Model in Optimization of Project Options[J].CHINA WATER &WASTEWATER ;18(1)(2002),p.81-84.

For this reason, natural gas is sent to the heat exchanger cooling unit, passing through a network of tubes and surrounded by a cooled medium, usually water or air.
Both designs have been validated using COMSOL Multiphysics®, which simulates the conditions associated with microelectronics air and water cooling and operated within Reynolds numbers ranging from 50 to 2300.
In 2019, this research indicates the pioneering potential of using design software for heat exchangers as an essential tool for industry professionals.
The exploratory study was managed to the destination of determining the optimal air flow rate with the same thermal heat exchanger professional performance and was used as a benchmark for comparison with the basic results obtained in Table (3).
Assessment of vortex generator shapes and pin fin perforations FOR ENHANCING water-based heat sink performance.

The use of solar thermal energy can produce solar water heaters, gas stoves and other solar energy solar heating equipment; can make use of solar energy photovoltaic photovoltaic power generation, but also produce solar cells, photovoltaic materials, etc.; photosynthetic energy can be simulated using the synthesis of organic compounds such as plant photosynthesis.
Wind energy is the solar radiation, the surface a lot of air temperature and water vapor content due to changes in flow generated by the kinetic energy.
Chinese solar energy resource potential, water heaters use mature technology, with economic and market competitiveness, so solar thermal utilization of renewable energy use, and even in the future energy supply can play an important role.
Problems of New Energy Industry Development Policy support and incentives is not enough.The current level of technology and policy environment conditions, in addition to hydropower and solar water heaters have the ability to participate in market competition, most of the development and utilization of renewable energy costs are high, coupled with scattered resources, small scale production is not continuous, etc., in the current under the rules of the market competitive, the need for policy support and incentives.
At present, new energy technology talent in short supply, especially of highly qualified professionals, at this stage very lack of qualified domestic talent, which also caused the new energy enterprises is fierce competition for talent, personnel mobility is relatively high.

The experiment consists of partial and total immersion of the samples in water in order to measure capillarity action in the wood after 12, 24, 36, and 72 hours of partial immersion in water, and water content after the full submersion in water.
Experiment and initial findings A plastic water container was filled with 3cm of water and then the samples were partially immersed in water.
Water absorption of the samples (Water intake) according to Formula (1).
Water intake according to Formula (1).
Professionals have to be conscious of the nature of such kinds of wood before using them for various purposes.

Grouting principle Grouting technology is a highly professional academic branch in geotechnical engineering, the grouting technologies for various problems has become a commonly used method.
In October 2011, the measured water inflow of 36.8m3/h, and about 25.8m3/h for the upper wellbore cumulative leakage (shower) water.
Water glass used before is liquid silicate with Baume degrees of 36 Be.
The theory and method of mine water disaster prevention and control [M].
Water plugging grouting and reinforcement technology for layer [M].

The most important conditions affecting the water environment capacity are Water quality standards, hydrological conditions and the sewage load distribution.
The different management water environment capacity depends on the different Water quality standards, different target water and different hydrological conditions and.
Furthermore, the application of the appropriate professional software based on the simplex method, the linear programming problem can be easily solved.
The set of water quality control point Environmental capacity calculation results and the set of water quality control point; they have a great relationship with the number of control points, position and water quality standards which used.
Water Res.

With regards to professional activities, the thermal conditions to which the foot is exposed can be extreme, when considered hard physical work in confined environments.
The main goal of this work is the development of professional footwear capable of an active regulation of its interior temperature, through the integration of electrical heating and/or cooling systems.
In both cases, the cooling water was at room temperature.
A liquid cold plate was attached to the hot side of the thermoelectric device, with the circulating water being kept at room temperature.
Figure 5 - Water cooling system used in testing.