Search Options

Sort by:

Sort search results by

Publication Type:

Publication Type filter

Open access:

Publication Date:

Periodicals:

Periodicals filter

Search results

Online since: June 2015
Authors: H. Kamarudin, H. Aimi Noorliyana, R. Azmi, D. Mohd Darus
Higher quicklime’s porosity enables better contact of the quicklime with water and the kinetics of hydration are consequently faster due to the optimum reactivity of quicklime.
Hydrated lime or calcium hydroxide (CaOH) was prepared by digesting CaO in distilled water (CaO: distilled water = 100 g: 400 ml) at ambient temperatures (25 °C) with discontinuous stirring action as corresponding to the standard of the American Society for Testing and Materials (ASTM C110).
After being dissolved, chemical reaction occurred spontaneously between calcium oxide and distilled water which is known as exothermic reaction.
During the hydration process, the temperature value is rising and variation of pH readings are being measured and recorded continuously using a professional benchtop digital pH meter (Trans Instruments, BP3001), respectively.
Online since: October 2014
Authors: Elena Sydorova, Alexander Mikhaylov, Ilya Navka
The cutting fluid "Unizor-M" (5%-solution of synthetic "Unizor-M" on the basis of water-soluble oligomers, surfactants, functional additives with the inclusion of corrosion inhibitors and biocides) combines the high cooling and low lubricating properties [2].
The cutting fluid "Ferrobetol-M" (5%-emulsion "Ferrobetol-M" based on vegetable and mineral oils, surfactants, and anti-friction additives) is an oil-in-water emulsion with anti-friction additives and has the high lubricating and low cooling properties [3].
The cutting fluid "EkoEM-1" (5%-microemulsion semisynthetic "EkoEM-1" based on vegetable and mineral oils, surfactants and anti-friction additives) is a semi-synthetic oil-in-water microemulsion with anti-friction additives and has the high lubricating and medium cooling properties [4].
From this we can conclude that the combination of medium cooling and lubricating action or high lubricating and medium cooling action, which provided by a semi-synthetic microemulsions or a semi-synthetic oil-in-water microemulsion with anti-friction additives, is effective.
[9] Caracteristics of carbide grade, Professional grade carbide cutting tools DJET.
Online since: December 2012
Authors: Heng Li, Cheng Yuan Dai, Guang Hua Li
In this method, rich project experience and professional knowledge to be required for the inspection personnel on-site.
Fence cracks, Concrete crack of expansion on the Joint in anchorage zone, Water-proof rubber fracture damaged on the expansion join, Anti-cursor miss the fence, Drain grating missing like these have expressed.
Details just as the Table 1 below: Fig.1 Fence cracks Fig. 2 Concrete cracks of expansion joint in anchorage zone Fig .3 Water-proof rubber fracture damaged on the expansion joins Fig.4 Reflective mark missing fence Table1 Condition and defect evaluation of the bridge deck system of Feng Shihe Bridge (Uplink half frame) Parts name Defect status description (number the expansion joint: in the field, detection in forward is the 0 #, 1 # expansion joint...)
Picture Evaluation Fence Surface of the fence concrete has vertical penetrating crack of 131 articles , and the width of 0.2-0.4 mm average fracture width 0.3mm Fig.1 Good ,second Concrete cracks in anchorage zone of expansion joint 0# expansion joint has horizontal crack of 9 articles , the width of 0.1-0.4 mm average fracture width is 0.25mm Fig.2 Good ,second 1# expansion joint has horizontal crack of 15 articles , the width of 0.1-0.4 mm 2# expansion joint has horizontal crack of 12 articles , the width of 0.1-0.3 mm 3# expansion joint has horizontal crack of 36 articles , the width of 0.2-0.3 mm 4# expansion joint has horizontal crack of 21 articles ,the width of 0.1-0.5 mm 5# expansion joint has horizontal crack of 17 articles ,the width of 0.2-0.3 mm 6# expansion joint has horizontal crack of 26 articles , the width of 0.1-0.5 mm 3 #, 4 #, 5 #, 6 # water-proof rubber fracture damaged on the expansion join Defect degree 57% Fig.3 Drainage system None Better, first Signs, reticle
Described above assessment indicators into continuous universe of discourse: It is described in Table 5 Table 5 Continuous universe of discourse Test items Continuous universe of discourse Type Measured data The width of fence concrete cracks 0mm-0.8mm 0.0-0.2 0.2-0.4 0.4-0.6 0.6-0.8 First type Second type Third type Fourth type 0.3 Concrete cracks of expansion on the Joint in anchorage zone 0.25 Water-proof rubber fracture damaged on the expansion join 0-100% (Defect degree) 0-25% 25-50% 50-75% 75%-100% First type Second type Third type Fourth Type 57% Signs, reticle 100% Diaphragm 27% Wet-joint 33% Main girder 59% Truncated cone banking , slope protection 26% Accordance with the provisions of the grade, the establishment of a fuzzy subset, and be combined through fuzzy relations, Mapping the results to the results of the theory in continuous universe of discourse, and then get the results of the overall assessment of the bridge.
Online since: April 2020
Authors: Kateřina Kučová, Veronika Glogarová, Monika Tichá, David Takač, Barbora Lyčková, Radmila Kučerová
Introduction At present, we are overloaded with pollution which is not only visible but also with pollutants contained in the air, water and soil.
It retains water well which facilitates water supply to plants during summer months; the contained calcite optimises pH of the soil.
It was implemented with the help of X-ray fluorescence spectrometry on machine Innov-X DELTA PROFESSIONAL.
Then the plants were watered immediately after their planting and then it was checked and repeated (when necessary 2 – 3 days in average).
Online since: January 2013
Authors: Ahmad Abdul Latif, Jimoh K. Adewole, Suzylawati Binti Ismail, Leo Choe Peng, Abdullah S. Sultan
In its raw form, it consists primarily of methane (CH4) [4] with varying amounts of heavier gaseous hydrocarbons, acid gases, water vapour, mercury, radioactive gases and other gases such nitrogen and helium [5].
The actual processing of NG to high pipeline quality involves several processing steps which include removal of oil (for associated NG), natural gas liquids, water, and other gases such as helium, nitrogen, hydrogen sulfide, carbon dioxide among others [5, 7].
Nielsen, Gas Purification, Gulf Professional Publishing, 1997
Hughes, Introduction to Industrial Membrane Processes, Industrial Membrane Separation Technology, Blackie Academic and Professional, London, 1996, pp. 1-7
Online since: September 2011
Authors: Li Liu, Yi Chi Zhang, Xiao Lin Dong, Fa Sheng Li
For example, about 85% of constructions funds were financed by municipal bonds for Drinking water and sewage disposal in U.S [3].
A professional financial intermediary -Brownfields Capital created a financial instrument called “Brownfields Value Contract” (BVC) which can provide financing for remediation and redevelopment of brownfields [4] p.85.
Hoffman and her Brownfields Capital(BC), a professional finance/investment management firm, created an exclusive license to a patent called the BVC for finances remediation; development and redevelopment of brownfields fund [5] p.15.
Wu and J.Y Ma: China Finance. 2(2006), p.21(In Chinese) [3] Research Group of water environmental protection investment and financing policies and demonstration of Ministry of Finance: Review of Economic Research. 46(2010), p. 46(In Chinese) [4] G.R.
Online since: May 2012
Authors: Li Wei Zhang, De Hu Yu, Shu Juan Yang
Current Situation of Metallurgical Slag Development and Utilization in China [1, 2] According to the investigation within the industry, it is showed that the development and utilization of metallurgical slag in our country has entered into the comprehensive utilization stage during the period of “the Eleventh Five-Year Plan”, and most of iron and steel enterprises have been equipped with professional treatment plant for the treatment and disposal of metallurgical slag.
In the past, blast furnace slag is mainly processed by water quenching, and ground up together with cement clinker and a small quantity of gypsum, to produce slag Portland cement.
Therefore, slag cement can be widely used in the construction process of civil construction, water conservancy channels, road traffic and so on.
Since 1996, the micro powder of blast furnace water-granulated slag from Shougang has been successively applied in the construction of major projects, including the parking garage of Capital International Airport and No.1 Bridge, Beijing Tongchan Building, Shatan Houjie Multifunctional Building in Beijing, and a variety of technical indexes have reached the design requirements.
The specific surface area of blast furnace water-granulated slag can be 4000~8000cm2/g after levigation, and its mixing amount can reach up to 20%-45%.
Online since: November 2012
Authors: Hong Bo Zheng, Pin Yan, Jing Chen
Acoustic, mechanics and physical properties of seabed sediment samples is measured by professional equipments and parameters such as porosity, density, grain average size, P-wave velocity, attenuation and other data can be obtained.
But the traditional direct measurement methods is low efficient and high cost, it’s difficult to sampling when the water depth is more than a few hundred meters.
Seabed sediment is water saturated porous gain two-phase mixture.
Sound propagation property in seabed sediment is established the theory for wave propagation of water saturated porous gain two-phase mixture.
is identical to the pressure reflection coefficient of the sediment–water interface.
Online since: June 2012
Authors: Bing Quan Wen, Xia Xie, Bin Wang
Concept of Remanufacturing for Automotive Components Remanufacturing is an industrialization manufacturing process that referring to the direction from the product life cycle theory, provides a professional repair or technical upgrading for old products or components using advanced techniques to restore the same quality and performance of remanufacturing products as the original.
The scope of remanufacturing for automotive components in Europe and the United States covers the engine, transmission, clutch, steering, starter, carburetor, water pump, air conditioning compressor, and other components.
Online since: November 2012
Authors: Hai Bo Yang, Yu Tao Feng
Polyurethane foam is commonly used which easily emits water vapor from the surface quickly and has good ventilation property.
Wang: Experimental Study on the Lord of Different VDT Operating Position Forearm, Professional Medicine, Vol. 20 (1993) No.5, p.276
Showing 2921 to 2930 of 3745 items