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Online since: October 2014
Authors: Li Qiang Tang
Its wide range of uses: such as intelligent transportation, environmental protection, the work of the government, public security, peace Home Furnishing, intelligent fire, industrial monitoring, water monitoring, food traceability, the enemy reconnaissance and intelligence gathering and other fields.
Involved in the logistics, information flow and capital flow in the process of integration of the logistics, including internal and external logistics in two parts, the internal logistics through the affected factors are less, through professional industrial engineering to logistics planning path and time, the master production schedule is stable for the ERP system (MPS) and material requirements planning (MRP) to provide reliable basic data.
But the disadvantage is the need for professional personnel and time-consuming to get relevant information, acquisition device through Internet of things (such as RFID) the start time of material processing and manufacturing process, the internal logistics down, get the ERP system basic data on real-time.
Involved in the logistics, information flow and capital flow in the process of integration of the logistics, including internal and external logistics in two parts, the internal logistics through the affected factors are less, through professional industrial engineering to logistics planning path and time, the master production schedule is stable for the ERP system (MPS) and material requirements planning (MRP) to provide reliable basic data.
But the disadvantage is the need for professional personnel and time-consuming to get relevant information, acquisition device through Internet of things (such as RFID) the start time of material processing and manufacturing process, the internal logistics down, get the ERP system basic data on real-time.
Online since: September 2013
Authors: Jian Xun Deng, Wei Hu
Such as in the aspect of legal support, construction developers must provide a "low energy prove” to consumers in the purchase or lease of housing, telling consumers residential heating, ventilation and hot water supply in the energy.
They also can put forward professional technology suggestion and motivate interaction between enterprises and other organizations.
Scientific research, education and professional qualifications.
They also can put forward professional technology suggestion and motivate interaction between enterprises and other organizations.
Scientific research, education and professional qualifications.
Online since: December 2016
Authors: Xiu Hua Chen, Yu Dan Liang
Further, Yuzhong Gao thought [3] that the stone needle could not maintain the constant temperature and infrared ray effect when it was usually warned by hot water.
It needs different professional fields experts work together to research and develop.
For further research, we would like to search more professional information about needle technology to analyze the effect mode or technological process.
It needs different professional fields experts work together to research and develop.
For further research, we would like to search more professional information about needle technology to analyze the effect mode or technological process.
Online since: July 2014
Authors: Ming Tong Ji, Chun Ying Zhang, Yu Dan Peng, Ting Ting Liu
Moreover, the cost of daily maintenance required is large and professionals are also required, which is not a small operation cost for travel operators.
They should choose environmental, green or ecological hotels with less energy consumption and form good habits of saving water and electricity.
They should choose environmental, green or ecological hotels with less energy consumption and form good habits of saving water and electricity.
Online since: November 2012
Authors: Melinda Godzsák, Zoltán Gácsi
In the first stage there is a 6-hour solid solution treatment at 530 ºC temperature and then the castings are intensively cooled down in water of 60-80 ºC temperature.
According to the professional literature [2] if the magnesium content of the alloy is solved it increases the value of lattice parameter.
Figure 8 illustrates G-P zones in different magnification rates. [4] Reading the professional literature we found photos where G-P zones can be seen more sharply but in these photos it is more difficult to see them in the matrix and their composition cannot be identified either. [5, 6] Figure 8: Photos of the Guinier-Preston zones Summary Our task was to find other heat treatment parameters to reduce the treatment periods and power consumption (530 ºC temperature - 6 hours and 210 ºC temperature – 3 hours).
According to the professional literature [2] if the magnesium content of the alloy is solved it increases the value of lattice parameter.
Figure 8 illustrates G-P zones in different magnification rates. [4] Reading the professional literature we found photos where G-P zones can be seen more sharply but in these photos it is more difficult to see them in the matrix and their composition cannot be identified either. [5, 6] Figure 8: Photos of the Guinier-Preston zones Summary Our task was to find other heat treatment parameters to reduce the treatment periods and power consumption (530 ºC temperature - 6 hours and 210 ºC temperature – 3 hours).
Online since: August 2013
Authors: Hong Liang Zhang, Bo He, Jing Hua Sha
SECRETARY
SPECIAL TRUSTEE FOR AMERICAN INDIANS
SOLICITOR
ASSISTANT SECRETARY(Policy, Management and Budget)
Interior Business Center
Chief Information Officer
INSPECTOR GENERAL
DEPUTY SECRETARY
ASSISTANT SECRETARY
(Fish and Wildlife and Parks)
ASSISTANT SECRETARY
(Indian Affairs)
ASSISTANT SECRETARY
(Land and Minerals Management)
ASSISTANT SECRETARY
(Water and Science)
National Park Service
Fish and Wildlife Service
Bureau of Indian Affairs
Bureau of Land
Management
Office of Surface Mining Reclamation & Enforcement
Bureau of Ocean Energy Management, Regulation & Enforcement
U.S.
It relies on the professional strength to provide reliable analysis to other institutions and markets.
On the other hand, industry associations respond to the industry specialized professional statistics as a basis, in consultation with the relevant government authorities to seek suitable for industrial development system space.
It relies on the professional strength to provide reliable analysis to other institutions and markets.
On the other hand, industry associations respond to the industry specialized professional statistics as a basis, in consultation with the relevant government authorities to seek suitable for industrial development system space.
Online since: November 2012
Authors: Jia Xi Duan, Xiao Jun Lv, Qi Dou Zhou, Zhi Yong Xie
Fig. 1 Finite element model and sketch of the cylinder
Table 1 Model scale and material property
Geometry [mm]
Material Property
Length
2000
Young’s Modulus
206000
[N/mm2]
Diameter
1600
Rib’s scale
10×50
Damping
0.06
Rib’s space
200
Density
7.85E-9
[N/mm3]
Base panel
375×200
Cover’s thickness
20
Poisson’s
Ratio
0.3
Cylinder’s thickness
6
Table 2 Time consumed by different mesh size
Mesh
2Ele(100mm)
4Ele(50mm)
8Ele(25mm)
Nodes
2328
9436
29558
Elements
2318
9353
29273
Time
20’
4 h
18 h 20’
Computer configuration
CPU:E5504@2.00GHz,
Memory:15.9GB,
OS: XP Professional x64
Table 3 Time consumed of fluid-structure interaction
Mesh
2Ele(100mm)
4Ele(50mm)
Nodes
3012
11704
Elements
3736
15332
Time
6’
247’
Verify of the vibration test.
Fig. 5 (A) and (B) show the comparison of mean square velocity (MSV) in vacuum and water.
The structure is 5 meters below the water level and the reflection of free surface is taken into consideration.
(A) In vacuum (B) In water Fig. 5 Comparison of MSV in vacuum and water Radiation SPL and radiation power.
(A) Radiation sound pressure (B) Radiation sound power Fig. 6 Radiation SPL and sound power level in water Fig. 7 Contour map of radiation SPL on 2ele(Left) and 4ele(right) at 520Hz Conclusions The steady sinusoidal and random white noise signals are employed as input for excitation force and the acceleration sensors are used to measure the response.
Fig. 5 (A) and (B) show the comparison of mean square velocity (MSV) in vacuum and water.
The structure is 5 meters below the water level and the reflection of free surface is taken into consideration.
(A) In vacuum (B) In water Fig. 5 Comparison of MSV in vacuum and water Radiation SPL and radiation power.
(A) Radiation sound pressure (B) Radiation sound power Fig. 6 Radiation SPL and sound power level in water Fig. 7 Contour map of radiation SPL on 2ele(Left) and 4ele(right) at 520Hz Conclusions The steady sinusoidal and random white noise signals are employed as input for excitation force and the acceleration sensors are used to measure the response.
Online since: January 2012
Authors: Dong Lin He, Wen Ye Gong
Building Roof Waterproof Application Of A New Material
Wenye Gong1, a, Donglin He2, b
1North China Institute of Water Conservancy and Hydroelectric Power, Zhengzhou, 450011, china
2KaiFeng University, Kaifeng, 475000, china
abaidsz@163.com, bkfuhdl@yahoo.com.cn
Keywords: roof waterproof, GT, application, base, construction
Abstract.
According to the test of professional departments, performances of GT materials are shown in Table 1 [2].
Table 1 GT performance index of flexible typeⅠ No. items Performance requirements Conditions Unit Technical index 1 Tensile strength MPa ≥ 2 2 Elongation percentage of breaking % ≥ 150 3 Adhesion stress MPa ≥ 1 4 Flexibility of low temperature No cracks ±5 ~ -10˚C, around Φ10 rods 5 Watertightness No leakage water pressure 0.3 MPa, 30 min 6 Resistance to freeze-thaw No cracking, blistering or shedding -20˚C ~ +20˚C, 20 cycles 7 Alkali resistance No cracking, blistering or shedding Immersed in Ca(OH)2 saturated solution for 14 d 8 Weather resistance No cracks, blistering, peeling, wrinkles or powder 600 W Xenon lamp weather instrument for 500 h 9 High temperature resistance No flowing, peeling or wrinkles 80˚C ± 2˚C, 5 h 10 Low temperature resistance No cracking or peeling -40˚C ± 2˚C 11 Drying time h Surface drying ≤ 4, actual drying ≤ 8 Base treatment to GT roof waterproof Before making roof waterproof layer, constructional base should be treated.
Water volume of roof gutter is concerned with diameter and amounts of the downspout.
The distance for rain water draining shall be no more than 30 m, and the water drop in gutter should not exceed 200 mm. 4.
According to the test of professional departments, performances of GT materials are shown in Table 1 [2].
Table 1 GT performance index of flexible typeⅠ No. items Performance requirements Conditions Unit Technical index 1 Tensile strength MPa ≥ 2 2 Elongation percentage of breaking % ≥ 150 3 Adhesion stress MPa ≥ 1 4 Flexibility of low temperature No cracks ±5 ~ -10˚C, around Φ10 rods 5 Watertightness No leakage water pressure 0.3 MPa, 30 min 6 Resistance to freeze-thaw No cracking, blistering or shedding -20˚C ~ +20˚C, 20 cycles 7 Alkali resistance No cracking, blistering or shedding Immersed in Ca(OH)2 saturated solution for 14 d 8 Weather resistance No cracks, blistering, peeling, wrinkles or powder 600 W Xenon lamp weather instrument for 500 h 9 High temperature resistance No flowing, peeling or wrinkles 80˚C ± 2˚C, 5 h 10 Low temperature resistance No cracking or peeling -40˚C ± 2˚C 11 Drying time h Surface drying ≤ 4, actual drying ≤ 8 Base treatment to GT roof waterproof Before making roof waterproof layer, constructional base should be treated.
Water volume of roof gutter is concerned with diameter and amounts of the downspout.
The distance for rain water draining shall be no more than 30 m, and the water drop in gutter should not exceed 200 mm. 4.
Online since: February 2013
Authors: Petr Baron, Stanislava Šoltésová
It denotes great interest not only in scientific sphere but also in sphere of results application in the new developing methods and their using in professional practice.
In traditional power stations is combination of steam turbine and alternator, where aggregates are transformed into heat and mechanic energy removed from heated water vapor.
In traditional power stations is combination of steam turbine and alternator, where aggregates are transformed into heat and mechanic energy removed from heated water vapor.