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Online since: September 2014
Authors: Jin Kun Sun, Jin Liu, Bing Mei Zhou, Tao Lv
The tension side should be guaranteed to be water proof and sealed timely.
● Static load anchoring performance test-extract 6 sets of samples from the anchorages which have passed appearance and hardness inspection and assemble them with prestressed reinforcement which accords with the requirements of the test into 3 prestressed reinforcement-anchorage assembly, whose static load anchoring performance test shall be conducted by legal professional testing organization.
The manufacturing of extruding anchor head should be conducted by the professional technicians according to process flow and the operation instruction of Extruding Machine JY-45, and take notice of the following aspects when performing its shaping inspection: (1) The extruded parts with extrusion meter readings less than 32MPa are unqualified, which must be extruded once again after being cut off
If the ordinary concrete is used, the hydration heat will be very high, thus the concrete of the project is made of Slag Portland cement and appropriate amount of flyash, adding concrete water reducing agent.
Concrete adopts field mixing, vertical transport adopts crane, and water cement ratio of concrete is reduced according to construction circumstances.
● Static load anchoring performance test-extract 6 sets of samples from the anchorages which have passed appearance and hardness inspection and assemble them with prestressed reinforcement which accords with the requirements of the test into 3 prestressed reinforcement-anchorage assembly, whose static load anchoring performance test shall be conducted by legal professional testing organization.
The manufacturing of extruding anchor head should be conducted by the professional technicians according to process flow and the operation instruction of Extruding Machine JY-45, and take notice of the following aspects when performing its shaping inspection: (1) The extruded parts with extrusion meter readings less than 32MPa are unqualified, which must be extruded once again after being cut off
If the ordinary concrete is used, the hydration heat will be very high, thus the concrete of the project is made of Slag Portland cement and appropriate amount of flyash, adding concrete water reducing agent.
Concrete adopts field mixing, vertical transport adopts crane, and water cement ratio of concrete is reduced according to construction circumstances.
Online since: November 2015
Authors: Antonella Petrillo, Fabio de Felice, Federico Zomparelli
Despite railways being a statistically safe form of transportation (due to guidance per rails, professional drivers, etc.) rail accidents may still happen.
The systems considered in the analysis in the railway tunnel system are: 1) Telecommunications equipment; 2) Signaling system; 3) Systems of light and driving force; 4) Electric traction; 5) Water system – fire; 6) Ventilation; 7) Security system and 8) Supervision integrated.
Table 3: MTBF results Subsystem MTBF (h) Telecommunications equipment 1000 Signaling system 3600 System of Light and Driving Force 100 Electric traction 10000 Ventilation 1600 Water system – fire 4000 Security system 1200 Supervision integrated system 1400 The resulting values for MTTR and MDT for each subsystem and for the gallery system as a whole are shown in the following Table 4.
Table 4: MTTR e MDT results Subsystem MTTR (h) MDT (h) Telecommunications equipment 2.00 4.00 Signaling system 1.12 3.12 System of Light and Driving Force 0.51 2.51 Electric traction 2.17 4.17 Ventilation 1.55 3.55 Water system – fire 1.33 3.33 Security system 1.79 3.79 Supervision integrated system 0.53 2.53 The value of MTBF for the fault conditions of normal operation has been calculated by means of DBA, obtaining a MTBFC = 250.000 hours calculated by DBA.
The systems considered in the analysis in the railway tunnel system are: 1) Telecommunications equipment; 2) Signaling system; 3) Systems of light and driving force; 4) Electric traction; 5) Water system – fire; 6) Ventilation; 7) Security system and 8) Supervision integrated.
Table 3: MTBF results Subsystem MTBF (h) Telecommunications equipment 1000 Signaling system 3600 System of Light and Driving Force 100 Electric traction 10000 Ventilation 1600 Water system – fire 4000 Security system 1200 Supervision integrated system 1400 The resulting values for MTTR and MDT for each subsystem and for the gallery system as a whole are shown in the following Table 4.
Table 4: MTTR e MDT results Subsystem MTTR (h) MDT (h) Telecommunications equipment 2.00 4.00 Signaling system 1.12 3.12 System of Light and Driving Force 0.51 2.51 Electric traction 2.17 4.17 Ventilation 1.55 3.55 Water system – fire 1.33 3.33 Security system 1.79 3.79 Supervision integrated system 0.53 2.53 The value of MTBF for the fault conditions of normal operation has been calculated by means of DBA, obtaining a MTBFC = 250.000 hours calculated by DBA.
Online since: January 2011
Authors: Hong Ni, Rui Fan
The evaluation of seam smoothness is performed in visual subjective evaluation method. 3 professionals are employed to rate each piece of sewing strip sample in accordance with AATCC—88B seam surface smoothness standard sample, and the average is taken.
Such fibers absorb the water vapor molecules under certain air conditions, reducing fiber expansion and increasing fabric volume.
Such fibers absorb the water vapor molecules under certain air conditions, reducing fiber expansion and increasing fabric volume.
Online since: September 2011
Authors: Ying Guo, Wei Xi Tang, Li Xia Ma
Peridot belongs to oxysalt mineral excluding water, so its chemical formula should be calculated by oxygen atom.
References [1] A.M Miller: Gem and Jewelry Appraising—Techniques of Professional Practice (Second Edition).
Richard: Cartier Professional Jewellery Appraising (Second Edition) (Canada Fischer Press,2004)
References [1] A.M Miller: Gem and Jewelry Appraising—Techniques of Professional Practice (Second Edition).
Richard: Cartier Professional Jewellery Appraising (Second Edition) (Canada Fischer Press,2004)
Online since: October 2013
Authors: Xiang Mei Yu, Dong Yang Geng, Li Jun Cao
During investment stage, the main problems of budget during investment stage are transportation condition, pipe line and water source, construction waste transportation, etc..
For example, when comparing project construction scheme, the professional staffs shall calculate work amount and technical staffs, and are responsible for the calculation result.
These professional staffs must re-check the work amount according to similar engineering projects of municipal administration road and give corresponding feedback opinions.
For example, when comparing project construction scheme, the professional staffs shall calculate work amount and technical staffs, and are responsible for the calculation result.
These professional staffs must re-check the work amount according to similar engineering projects of municipal administration road and give corresponding feedback opinions.
Online since: November 2014
Authors: Bo Liao, Ya Ou, Yan Lu
Specifically, issues surrounding both social and environmental abuses occurring in the production, distribution, and consumption of apparel and textile goods have gained increased attention over the last 15 years among consumer groups, various media outlets, and industry professionals.
Moreover, the use, release, and disposal of chemical pollutants and other solid wastes, the biodegradability of fibers, and water and the high consumption of energy are significant environmental issues that apparel firms must address.
Moreover, the use, release, and disposal of chemical pollutants and other solid wastes, the biodegradability of fibers, and water and the high consumption of energy are significant environmental issues that apparel firms must address.
Online since: November 2012
Authors: Xiao Qian Yang
After the air pollution, water pollution and noise pollution, we will face a tough problem- light pollution caused by excessive artificial lighting.
However, today the urban night scene is often designed by experience the professionals of urban lighting design are relatively few.
However, today the urban night scene is often designed by experience the professionals of urban lighting design are relatively few.
Online since: March 2012
Authors: Xiao Jing Liu, Yuan Zou
Comprehensive software can provide multiple format conversion functions, while professional software requires particular processes for format conversion.
These building scenes or backgrounds are created for themes, since the visual effects and theme characteristics are emphasized in these scenes, they do not need to meet professional standards, irregular model elements can be found everywhere in these scenes. (5) Conversions from basic geometric elements to complex surfaces in the design process.
Main applications of the method include: (1) Landforms with map channels. (2) Models with high demands of bump texture simulation. (3) Surface deformation of landscape models containing mountains, water, and etc. (4) background details with average subdivisions.
These building scenes or backgrounds are created for themes, since the visual effects and theme characteristics are emphasized in these scenes, they do not need to meet professional standards, irregular model elements can be found everywhere in these scenes. (5) Conversions from basic geometric elements to complex surfaces in the design process.
Main applications of the method include: (1) Landforms with map channels. (2) Models with high demands of bump texture simulation. (3) Surface deformation of landscape models containing mountains, water, and etc. (4) background details with average subdivisions.
Online since: October 2014
Authors: Marin Sandu, Oana Cella Andrei, Ruxandra Margarit, Alice Tanasescu, Raluca Manuela Oprea
After cleaning they were kept in a container with distilled water at an ambient temperature.
Joshipura, Peridontal disease, tooth loss, and cancer risk in male health professionals: a prospective cohort study, Lancet Oncology 9(2008) 550-558
Joshipura, Peridontal disease, tooth loss, and cancer risk in male health professionals: a prospective cohort study, Lancet Oncology 9(2008) 550-558