搜索结果: 1-14 共查到“Gypsum”相关记录14条 . 查询时间(0.079 秒)
Using HYDRUS to simulate the dynamic changes of Ca2+ and Na+ in sodic soils reclaimed by gypsum
cation exchange ion transport leaching
2016/2/22
Sodic soils are characterized by the occurrence of excess sodium to levels that can adversely affect soil structure. In recent years, with the advent of alternatives for reclaiming sodic soils, such a...
Pore formation during dehydration of a polycrystalline gypsum sample observed and quantified in a time-series synchrotron X-ray micro-tomography experiment
polycrystalline gypsum sample Pore formation
2015/1/4
We conducted an in-situ X-ray micro-computed
tomography heating experiment at the Advanced Photon
Source (USA) to dehydrate an unconfined 2.3 mm diameter
cylinder of Volterra Gypsum. We used ...
Pore formation during dehydration of a polycrystalline gypsum sample observed and quantified in a time-series synchrotron X-ray micro-tomography experiment
Pore formation during dehydration a polycrystalline gypsum sample time-series synchrotron X-ray micro-tomography experiment
2015/1/4
We conducted an in-situ X-ray micro-computed tomography heating experiment at the Advanced Photon Source (USA) to dehydrate an unconfined 2.3 mm diameter cylinder of Volterra Gypsum. We used a purpose...
Cause Analysis and Countermeasure of Gypsum Rain in Coal-fired Power Plants
Coal fired power plant gypsum rain GGH Wet desulphurization
2013/3/9
Focusing on the phenomenon of gypsum rain while wet desulphurization(WFGD) were adopted in coal fired power plant without GGH, the paper studied and put forward the solutions : (1) desulfurization fac...
Land application of spent gypsum from ditch filters: phosphorus source or sink?
Phosphorus Sorbing Materials Gypsum Ditch Filter
2013/3/4
Agricultural drainage ditches can provide a direct connection between fields and surface waters, and some have been shown to deliver high loads of phosphorus (P) to sensitive water bodies. A potential...
Fabrication of B-type carbonate apatite blocks by the phosphorization of free-molding gypsum-calcite composite
Carbonate apatite Gypsum Calcite Phosphorization
2009/9/11
B-type carbonate apatite (CO3Ap) block may be an ideal artificial bone substitute because it is closer in chemical composition to bone mineral. In the present study, the feasibility to fabricate CO3Ap...
Properties of a gypsum-bonded magnesia investment using a K2SO4 solution for titanium casting
Titanium Gypsum-bonded investment K2SO4
2009/9/11
The purpose of the study was to investigate the effects of a K2SO4 solution on the improvement of the properties of an experimental magnesia-based gypsum-bonded investment.
The characteristics of the...
Corrosion resistance of various bio-films deposited on austenitic cast steel casted by lost-wax process and in gypsum mould
Carbon coatings Hydroxyapatite Corrosion Austenitic cast steel
2011/4/7
This work is the next of a series concerning the improvement of austenitic cast steel utility predicted for use in implantology for complicated long term implants casted by lost-wax process and in gyp...
Corrosion resistance of various bio-films deposited on austenitic cast steel casted by lost-wax process and in gypsum mould
Carbon coatings Hydroxyapatite Corrosion Austenitic cast steel
2011/4/2
This work is the next of a series concerning the improvement of austenitic cast steel utility predicted for use in implantology for complicated long term implants casted by lost-wax process and in gy...
Manufacture and Properties of Gypsum-Bonded Particleboard III
gypsum-bonded particleboard kenaf fiber incombustibility
2009/3/6
Gypsum-bonded particleboards overlaid with kenaf bast fiber mats on top and bottom surfaces were manufactured. The effects of the kenaf fiber overlay on the mechanical and dimensional properties of th...
Manufacture and Properties of Gypsum-Bonded Particleboard IV.
gypsum-bonded particleboard waste gypsum boards amount of mixing water
2009/3/6
In order to study the recycling of waste gypsum boards, gypsum-bonded particleboards were manufactured by using the gypsum hemihydrate calcined from waste gypsum boards, and the mechanical properties ...
Gypsum dissolution is not a universal integrator of "water motion"
Gypsum dissolution universal integrator water motion
2014/6/17
The dissolution of gypsum or plaster of Paris has been widely used as an inexpensive integral measure of ‘water motion’ in the field and in laboratory tanks for studies of physical-biologica...
Thermal expansion of gypsum investigated by neutron powder diffraction
Thermal expansion gypsum investigated neutron powder diffraction
2012/4/6
The cell parameters of deuterated gypsum have been extracted from Rietveld anal-ysis of powder neutron diffraction data within the temperature range 4.2-320 K.The thermal expansion of gypsum is highly...
Precipitation of Laumontite with Quartz, Thenardite, and Gypsum at Sespe Hot Springs, Western Transverse Ranges, California
Diagenesis Efflorescence Hot spring Isotope analysis Laumontite Water Zeolite
2012/2/8
Well-crystallized laumontite has been found for the first time precipitating naturally at the earth's surface at temperatures of 89?to 43癈 as a component of gray to white coatings and efflorescences o...