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Online since: October 2012
Authors: Hong Ju Liu
For the ecological function of the vertical green garden, environmental professionals research more.
One of the characteristics of ‘virtual-shape’ vertical interface is that it can make the material shade diversification, plant, water, mirror and wood subjects are all the major elements of virtual-shape interface.
The fresh plants is full of life, and the brooklet make water moving like, these are all the condiment between people, hard-material space and interface.
Online since: December 2018
The book is divided 9 chapters that intend to be a resume of the current state of knowledge for benefit of professional colleagues, scientists, students, practitioners, lecturers and other interested parties to network.
The authors verified that, the smaller the dimensions and lower the initial moisture content of the product, the solidification of water inside the solid occurs even faster.
Finally, in Chapter 9, Gomes dos Santos et al. present a theoretical and experimental study of water absorption in polyester matrix composites reinforced with sisal fiber at temperatures of 25ºC, 50ºC and 70°C.
The results show that high water bath temperatures accelerate the absorption process and the water absorption of the sisal reinforced polymer composite with 3 mm of thickness is faster than the with 6 mm of thickness.
Online since: August 2016
Authors: Rodrigo Polkowski, Pollyana Melo, Luciano Pisanu
Such environmental influences include water, greases, oils, chemicals products for coatings, road salts, spilled fuel and other automotive fluids.
The polyamide 12, in addition to the characteristics mentioned above, has low water absorption, allowing their physical properties to remain effectively stable under humidity, and excellent abrasion resistance, which enables to support the friction which may occur under the vehicle [5, 6, 7].
The International Society of Automotive Engineers (SAE) coordinates the development of technical standards based on best practices, identified and described by engineering professionals from relevant fields.
The first test method requests to immerse the samples in a 50% aqueous solution of zinc chloride for 200 hours at 23 °C and the second one asks for 50% engine degreaser and 50% water for 60 days.
The fluid agent Solupan was diluted in water at concentrations of 15:1 and 30:1 (volume fractions of 3% and 6%).
Online since: May 2017
Authors: Solomon I. Adedokun, Akeem Ayinde Raheem, E.A. Adeyinka, B.V. Adewole
Water absorption was conducted by weighing the samples of paving stones after 28 days of curing.
The samples were then immersed in water for 24 hours and the new weights of each sample measured.
Effects of the CSA on the compressive strength of the interlocking paving stone Water Absorption Fig. 6 presents the effects of CSA percentage replacement on the water absorption rate of the interlocking paving stone.
The Professional Builder 2000; June/ July: 47–55
The Professional Builder 2001; June: 3–10
Online since: October 2010
Authors: Fan Li, Ling Wang, Xue Yong Wang, Ming Jie Zhou
Table 1 Mixture proportion of concrete strength grade Water-cement ratio Sand ratio (%) component (kg/m3) Compressive strength (MPa) Tensile strength (MPa) cement sand stone water Water reducing agent C30 0.5 33.9 360 634 1236 180 0.8% 42.6 2.43 C40 0.4 40.5 400 767 1126 160 1% 55.1 2.85 C50 0.35 40 450 717 1076 157.5 1.3% 57.8 2.95 Note: Mixture proportion of water reducing agent is the mass percent of water reducing agent and cement.
Wang: Proceedings of the 9th International Conference of Chinese Transportation Professionals, ICCTP 2009, Vol. 358 (2009), p.2291-2296 [3] M.J.
Online since: January 2013
Authors: Ming Hui Liu
(1) Environmental monitoring includes the monitoring for the upstream and downstream water level of the dam, water temperature of reservoir, air temperature, sedimentation in front of dams, downstream erosion and deposition
(4) Stress-strain and temperature monitoring includes the monitoring of concrete stress, strain, steel stress, steel plate stress of the steel pipe and volute, concrete temperature, foundation temperature, void water pressure in embankment dams, earth pressure (stress) force, etc
To obtain a more accurate result, a fine division could be conducted for the upstream water level interval.
This software can be used for small and medium-sized dam safety monitoring information management, and the original manual processing by the professionals in data analysis and preparation of reports now is fully completed by a computer system, greatly improving the work efficiency, saving enormous human and material resources.
Water Resources and Hydrology automation, 2002 (4) ,45-49 [5] Jiang Haizhou.
Online since: February 2013
Authors: Li Jun Yin
The construction process is: basic layer test the water - base layer - zoning - plastic underlying laying - plastic surface spray - process line.
The Surface Layer Construction Methods Comply with the rules promulgated by the IAAF requirements in order to ensure the quality and flatness of the polyurethane runway surface layer of pavement, slope, and at the same time to ensure the quality and perception of the future use of plastic track, before the plastic surface pavement acceptance must be the quality of the original foundation, concrete Standard reference the IAAF standard manual and design drawings of the venue provisions of the indicators, its procedures are as follows: Grassroots Acceptance and Problem Rectification Collection of the original raw materials used in foundation construction quality inspection report, inspection report of the coefficient of thermal stability and density of two indicators; -site measurement of the flatness of the original base layer, slope; elevation and the control of water level detection axis references point relative elevation, and whether international IAAF manual requirements, identify
In order to ensure the entire site pavement smooth, uniform thickness, watered with tap water on the entire site before construction, watering should be thorough and Slow Note overland flow, non strong red pen well marked depression hydrocephalus at material polyurethane bottom reinforcing.
All management and operating team will strengthen the sense of quality and quality functions; implementation of the responsibility engineers and professional quality control engineers responsible for system and comprehensive management and control of the quality of the project, the whole construction process; through a clear division of labor the person in charge of the construction unit project supervision engineers and construction side of the close coordination and cooperation, the effective control of the quality of the project.
The Quality Control Measures In construction, engineering construction section, the various types of work, between the professional staff closely with the construction, each division of a unified governing staff work by the project manager should work together to completion of works on time and durability.
Online since: September 2013
Authors: Hong Bin Tao
Since reform and opening, water conservancy and hydropower construction industry become more competitive.
Features of Water Conservancy and Hydropower Project Construction Management Water conservancy and hydropower project construction management system composition is very complex, changeable factors.
The task involved in the construction of professional technicians and workers, a comprehensive understanding of the engineering tasks undertaken characteristics, technical requirements, construction technology, be aware of.
Water Technology has made new progress in our correlation analysis [J].
Engineering and Technology [3] Jiang Taihui; under the new situation of rural water conservancy project management of new ideas [J]; intellect; 2011 02 [4] Shi Yanmei; Lu Qin-Hua; Lee with war; Reflections on Strengthening Water Management [J]; Modern Agriculture; 2010 04 [5] Zhang Tao are; actively promote water conservancy project management modernization [J]; Chinese high-tech enterprises; 2010 36
Online since: March 2015
Authors: Ming Da Liu, Jun Xing Li, Xiao Wei Liu, Dan Yang, Ran An
Water becomes more and more scarcely, especially the drinking water.
In the new rural drinking water safety project, the qualified rate of water is low (some even less than 40%) and medium water infectious diseases often occurs [1].
Moreover, less management personnel and poor professional knowledge level make it more difficult to operate the complex water treatment equipments.
The ozone water processor is developed as an economical and efficient water treatment device.
Luo, Application and evaluation of Ozone Water Processor used in small rural drinking water supply system, Urban Water Supply. 5 (2011) 86-88
Online since: September 2014
Authors: Antonio Borri, Marco Corradi, Giulio Castori
The water-lime ratio is in the range of 30 to 60%, depending on the required workability.
In contrast, type 2 was a single-component professional repair mortar manufactured by CVR.
More precisely, the capacity of IT arches (strengthened with GFRP grid mesh placed into the mortar bed joints) was increased by 446% from 0.15 to 0.81 kN for arch DR.IT.01, built with a weak mortar (Type 1), and by 124% from 1.57 to 3.52 kN for arch DR.IT.02, built with a single-component professional repair mortar (Type 2).
In all the specimens, failure was dictated by the arch displacement mechanism (Fig. 6), with an ultimate load capacity equal to 1.07 kN for arch TR.UT.01, built with a weak mortar (Type 1), and 6.83 kN and 4.10 kN for arches TR.UT.02 and TR.UT.03 (built with a single-component professional repair mortar, Type 2), respectively.
The capacity of the IT arches was increased by 153% from 1.07 to 2.71 kN for arch TR.IT.01, built with a weak mortar (Type 1), and by 54% and 137% for arches TR.IT.02 and TR.IT.03, built with a single-component professional repair mortar (Type 2).
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