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Online since: June 2014
Authors: Ming Jun Lv, Jian Guo Liu, Feng Zhen Liu, Yan Hui Sun, Xin Zhao, Xiang Dong Zhao
Intelligent scheduling for grid , the grid is lost brain center , the integrated use of a variety of advanced technology and intelligent means of the transmission grid be active , intelligent monitoring , analysis, early warning , decision support , and self-healing controls for dispatch center Yun Fang , following intelligence business support means security, scheduling , planning, automation, and other full-service professional, provides for the transmission grid to provide strong technical support.
Several intelligent application for the professional needs is the key to building support systems integration technology is the foundation .
[2] Xie Guangrun,Power System overvoltage, Beijing : Water Power Press , 1985 [3] Zhou Ze, kept high voltage technology , Beijing: China Water Power Press , 1993 [4] Xie Guang-run, over-voltage and protection , Beijing: China Electric Power Press , 1987
Several intelligent application for the professional needs is the key to building support systems integration technology is the foundation .
[2] Xie Guangrun,Power System overvoltage, Beijing : Water Power Press , 1985 [3] Zhou Ze, kept high voltage technology , Beijing: China Water Power Press , 1993 [4] Xie Guang-run, over-voltage and protection , Beijing: China Electric Power Press , 1987
Online since: May 2014
Authors: Ke Ping Zhou, Jian Zhang, Hong Wei Deng, Chun Fang Dong, Jie Lin Li, Wei Gang Tian
In addition, the occurrence of freezing-thawing damages to rocks is closely linked with the water chemistry environment.
Zhang Jizhou [10] made a circulated freezing-thawing test on three rocks in two water chemistry environments (saturated distilled water, and soaked and corroded with nitric acid solution of 1%), finding the freezing-thawing damage to rocks was more much more severe under the acid condition than that under the pure water chemistry condition.
[16] The Professional Standards Compilation Group of People’s Republic of China.
SL 264-2001 Specifications for rock tests in water conservancy and application[S].
Beijing: China Water Power Press, 2001.
Zhang Jizhou [10] made a circulated freezing-thawing test on three rocks in two water chemistry environments (saturated distilled water, and soaked and corroded with nitric acid solution of 1%), finding the freezing-thawing damage to rocks was more much more severe under the acid condition than that under the pure water chemistry condition.
[16] The Professional Standards Compilation Group of People’s Republic of China.
SL 264-2001 Specifications for rock tests in water conservancy and application[S].
Beijing: China Water Power Press, 2001.
Online since: June 2012
Authors: Ulisses Targino Bezerra, Normando Perazzo Barbosa
The water/cement ratio was constant and equal to 0.44.
The granulated sugar was mixed with water and stirred until total dissolution.
Twenty four hours after of cast, the specimens were immersed in water for 27 days, completed the 28 days cycle.
Monteiro, Concrete: microstructure, properties and materials, New York, McGraw-Hill Professional, 2005
Buenfeld, Determining the water-cement ratio, cement content, water content and degree of hydration of hardened cement paste: method development and validation on paste samples, Cement and Concrete Research, v. 39, i. 10, October, p. 957-965, 2009
The granulated sugar was mixed with water and stirred until total dissolution.
Twenty four hours after of cast, the specimens were immersed in water for 27 days, completed the 28 days cycle.
Monteiro, Concrete: microstructure, properties and materials, New York, McGraw-Hill Professional, 2005
Buenfeld, Determining the water-cement ratio, cement content, water content and degree of hydration of hardened cement paste: method development and validation on paste samples, Cement and Concrete Research, v. 39, i. 10, October, p. 957-965, 2009
Online since: March 2020
Authors: Ikram El Abbassi, Cheikh Sidi Ethmane Kane, A. Moumen Darcherif, Mamoudou Ndongo, Labouda Ba
For the preparation of concrete, the sand is mixed with portland cement, an admixture and a quantity of water for hydration.
It showed that compaction enhances the mechanical characteristics of the material but the material remains sensitive to water.
It has a direct impact on professional integration and the use of local resources.
The first category practices self-construction, never involves professionals in the sector (architects, engineers, technicians).
Deutsche Gesellschaft fur Technische Zusammenarbeit (GTZ) GmbH, Department Water, Energy and Transport, 2009
It showed that compaction enhances the mechanical characteristics of the material but the material remains sensitive to water.
It has a direct impact on professional integration and the use of local resources.
The first category practices self-construction, never involves professionals in the sector (architects, engineers, technicians).
Deutsche Gesellschaft fur Technische Zusammenarbeit (GTZ) GmbH, Department Water, Energy and Transport, 2009
Online since: December 2013
Authors: Victoria G. Borkovskaya
Buildings are used around the world about 40% of the primary energy consumption, 67% of all electricity, 40% of the total raw material and 14% of potable water, and produce 35% of carbon dioxide and about half of all municipal solid waste.
Currently, the concept of "green" building (GB) was applied in professional practice Russian architects and builders, scientists and specialists.
Environmental benefits: • reduce greenhouse gas emissions, waste and polluted water; • protection of natural habitat and biodiversity; • preservation of natural resources.
Benefits for Health and Society: • creating a comfortable environment in the areas of air quality, as well as thermal and acoustic performance; • reducing the level of pollution entering the water, soil and air, and as a result, reduce the burden on urban infrastructure; • improving the quality of life through optimal urban design.
Operation of "green" buildings, compared with the traditional is more economical because: on average 25% lower power, water consumption is reduced by 30%, reduced maintenance costs of the building, dramatically reduced the number of failures of the lease; reduced losses payments for health insurance, reduced operating costs, increased student achievement, students, etc.
Currently, the concept of "green" building (GB) was applied in professional practice Russian architects and builders, scientists and specialists.
Environmental benefits: • reduce greenhouse gas emissions, waste and polluted water; • protection of natural habitat and biodiversity; • preservation of natural resources.
Benefits for Health and Society: • creating a comfortable environment in the areas of air quality, as well as thermal and acoustic performance; • reducing the level of pollution entering the water, soil and air, and as a result, reduce the burden on urban infrastructure; • improving the quality of life through optimal urban design.
Operation of "green" buildings, compared with the traditional is more economical because: on average 25% lower power, water consumption is reduced by 30%, reduced maintenance costs of the building, dramatically reduced the number of failures of the lease; reduced losses payments for health insurance, reduced operating costs, increased student achievement, students, etc.
Online since: July 2014
Authors: Wan Li Liu, Xiao Fei Liu, Pei Jiu Yue
In water flow movement similar conditions, the velocity scale of the Freund's similarity and resistance similarity is inconsistency, and the flow resistance is the function of bed material grain size and flow intensity.
In the model design, the basic similar conditions include the water flow movement similar and the sediment movement similar conditions.
It should be pointed out, natural river water, sediment and bed sand sizes are varied, so no matter what prototype incipient motion velocity determining methods are approximate.
(1) The primary and secondary selection of water flow movement similar conditions is same as the bed load
[2] Professional Committee of Chinese Hydraulic Engineering Society Sediment.
In the model design, the basic similar conditions include the water flow movement similar and the sediment movement similar conditions.
It should be pointed out, natural river water, sediment and bed sand sizes are varied, so no matter what prototype incipient motion velocity determining methods are approximate.
(1) The primary and secondary selection of water flow movement similar conditions is same as the bed load
[2] Professional Committee of Chinese Hydraulic Engineering Society Sediment.
Treatment of Organic Phosphorus Pesticides Manufacturing Wastewater by Supercritical Water Oxidation
Online since: September 2013
Authors: Yan Hui Li, Shu Zong Wang, Li Li Qian, Xing Ying Tang
Supercritical water oxidation (SCWO) has been proven as a clean and high-efficiency technique for destroying the pollutants.
Supercritical water (SCW) is the water which above its critical temperature and pressure (374℃, 22.1MPa).
The discharges are made up of water, mineral salts, CO2 and N2 from SCWO which are friendly to the environment.
In this work, the treatment of OPPs-MW is performed using hydrogen peroxide as an oxidant in a batch reactor in supercritical water.
The pH was analyzed by a Sartorius Professional Meter PP-50.
Supercritical water (SCW) is the water which above its critical temperature and pressure (374℃, 22.1MPa).
The discharges are made up of water, mineral salts, CO2 and N2 from SCWO which are friendly to the environment.
In this work, the treatment of OPPs-MW is performed using hydrogen peroxide as an oxidant in a batch reactor in supercritical water.
The pH was analyzed by a Sartorius Professional Meter PP-50.
Online since: July 2011
Authors: Xin Hua Zhu
(inner group competition.)
2
10
Water thorns
1. understanding the importance of special talents for completing the task.
2. train all students the ability of cooperating with each other, and try their best.
1. introduce the methods and meaning of water thorns.
2. group exercise.
3. physical quality exercise.
1. check the site of sharp objects and the safety of appliance.
2. group those good physical quality and bad physical quality together.
This way asks universities to hire experienced teachers, and buy the equipments of outward bound, treat it as a compulsory course, cooperate with the professional outward bound center.
As outward bound is mainly consisted of indoor, outdoor and professional field these 3 kinds, so when we are arranging the curriculum, each team should be with one teacher to handle emergencies, and ensure the safety.
This way asks universities to hire experienced teachers, and buy the equipments of outward bound, treat it as a compulsory course, cooperate with the professional outward bound center.
As outward bound is mainly consisted of indoor, outdoor and professional field these 3 kinds, so when we are arranging the curriculum, each team should be with one teacher to handle emergencies, and ensure the safety.
Online since: July 2012
Authors: Qian Qian Gao, Xue Jun Liu, Dong Jiao Wang, Jing Cheng, Li Li Zhou
Firstly the ginsengs started to be washed with water, dried at 100℃ for 10 min, then were shattered, extracted by ultrasonic at100Hz for 30 min(at25℃), next were further extracted by rotary evaporator at 60℃ for 12min , finally the extracts were freeze dried into powder at -59℃ for 5-7d.
Table 1 The levels of orthogonal factors level A B C D 1 2 3 A1 A2 A3 B1 B2 B3 C1 C2 C3 D1 D2 D3 A: the addition of ginseng extracts/% B: the addition of blueberry juice powder/% C: the addition of starch/% D: the addition of 40%ethanol/% 1.3.4 The test methods (1) The content of water: Measured according to GB5009.3-2000
(4) The content of ginsenoside in ginseng extracts:Measured by High Performance Liquid Chromatography (HPLC) 1.3.5 The methods of sensory evaluation An assessment group of ten food processing professionals assessed the texture, color, flavor, taste of chewable tablets with ginseng and blueberry.
Table 1 The levels of orthogonal factors level A B C D 1 2 3 A1 A2 A3 B1 B2 B3 C1 C2 C3 D1 D2 D3 A: the addition of ginseng extracts/% B: the addition of blueberry juice powder/% C: the addition of starch/% D: the addition of 40%ethanol/% 1.3.4 The test methods (1) The content of water: Measured according to GB5009.3-2000
(4) The content of ginsenoside in ginseng extracts:Measured by High Performance Liquid Chromatography (HPLC) 1.3.5 The methods of sensory evaluation An assessment group of ten food processing professionals assessed the texture, color, flavor, taste of chewable tablets with ginseng and blueberry.
Online since: August 2014
Authors: Anton Panda, Eva Vitikáč Batešková
.),
· curling of surface processed sheet without outer layer damaging,
· relief shaping on the curled piece surface,
· curling of thin-walled symmetrical profiles,
· automation of the machine working cycle. [3]
Press roller stroke mechanism design
For modelling, i.e. for the topical 3D twincylinder curling machine model design the above mentioned CAD design Autodesk Inventor Professional 2010 software was used.
Fig. 8 Left side of the mechanism Fig. 9 Uncovered left side of the mechanism Table 2 Worm gear components table Labelling in picture Name of component Number [pcs] 1 Electric motor shank 1 2 Shank box 1 3 Box 3 4 Rod nut M10 2 5 Stroke rod 1 6 Electric motor screw M5 4 7 Screw short M8 2 8 Screw M5 16 9 Coupling 1 10 Pinion 2 11 Wheel 2 12 Helix 2 13 Stroke board 2 14 Bearing 1 (25x42x9) 4 15 Bearing 2 (10x26x8) 4 Fig 10 Worm gear mechanism in the machine Stress analysis of the curling machine model The utility of the worm gear was tested by means of Autodesk Inventor Professional 2010 stress analysis programme.
Bičejová, Water jet technology head vibration generation due to selected technology parameters fluctuation effect during alloy cutting, Applied Mechanics and Materials 308 2013 81-86
Bičejová, Abrasive kind and granularity changes affects to water jet technology head vibration during cutting HARDOX material thickness alternation process, Applied Mechanics and Materials 308 (2013) 75-79
Fig. 8 Left side of the mechanism Fig. 9 Uncovered left side of the mechanism Table 2 Worm gear components table Labelling in picture Name of component Number [pcs] 1 Electric motor shank 1 2 Shank box 1 3 Box 3 4 Rod nut M10 2 5 Stroke rod 1 6 Electric motor screw M5 4 7 Screw short M8 2 8 Screw M5 16 9 Coupling 1 10 Pinion 2 11 Wheel 2 12 Helix 2 13 Stroke board 2 14 Bearing 1 (25x42x9) 4 15 Bearing 2 (10x26x8) 4 Fig 10 Worm gear mechanism in the machine Stress analysis of the curling machine model The utility of the worm gear was tested by means of Autodesk Inventor Professional 2010 stress analysis programme.
Bičejová, Water jet technology head vibration generation due to selected technology parameters fluctuation effect during alloy cutting, Applied Mechanics and Materials 308 2013 81-86
Bičejová, Abrasive kind and granularity changes affects to water jet technology head vibration during cutting HARDOX material thickness alternation process, Applied Mechanics and Materials 308 (2013) 75-79