Development of a Powder Wettability Evaluation Technique by Analyzing the Increase in Internal Pressure due to Capillary Suction of Closed Powder Bed —Effect of Powder-Bed-Preparation Method and Powder Surface Area Estimation Method—

National level indicators of child undernutrition often hide the real scenario across a country. In order to construct a child nutrition map, accurate estimates of undernutrition are required at very small spatial scales, typically the administrative units of a country or a region within a country. Although comprehensive data on child nutrition are collected in national surveys, the small scale estimates cannot be calculated using the standard estimation methods employed in national surveys, since such methods are designed to produce national or regional level estimates, and assume large samples. Small area estimation method has been widely used to find such micro-level estimates. Due to lack of unit level data, area level small area estimation methods (e.g., Fay-Herriot method) are widely used to calculate small-scale estimates. In Bangladesh, a few works have been done to estimate district level child nutrition status. The Bangladesh Demographic Health Survey covers all districts but district wise sample sizes are very small to get consistent estimates. In this paper, Fay-Herriot Model has been developed to calculate district wise estimates with efficient mean squared error. The Bangladesh Demographic Health Survey 2011 and Population Census 2011 are utilized for this study.

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Study on Comparison among Papermaking Powder Properties

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.512-515.2434 ◽

2012 ◽

Vol 512-515 ◽

pp. 2434-2438

Author(s):

Quan Xiao Liu ◽

Wen Cai Xu

Keyword(s):

Particle Size ◽

Chemical Composition ◽

Specific Surface ◽

Surface Area ◽

Specific Surface Area ◽

Preparation Method ◽

Powder Properties

In this paper the comparison among some papermaking powder properties are studied. It shows that the properties of different powders are different because of different chemical composition and different preparation method and their particle size is different for different purpose such as filler and pigment. The particle size of powder for pigment powder is smaller than that for filler. The specific surface area of papermaking filler is lower than 20m2/g, the absorption value of DBP is about 45cm3/100g, the whiteness is up to 90%, and the particle size is about 3µm. The specific surface area of papermaking pigment is lower than 25m2/g, the absorption value of DBP is from 40 cm3/100g to100cm3/100g, the whiteness of clay is up to 50%, the whiteness of GCC and PCC is up to 90%, and the particle size is lower than 2µm. The specific surface area of silica is up to 100m2/g, the absorption value of DBP is up to 100cm3/100g, the whiteness is up to 97%, and the particle size is around 5µm.

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Surface Area Estimation of Digitized 3D Objects Using Local Computations

Discrete Geometry for Computer Imagery - Lecture Notes in Computer Science ◽

10.1007/3-540-45986-3_24 ◽

2002 ◽

pp. 267-278 ◽

Cited By ~ 5

Author(s):

Joakim Lindblad ◽

Ingela Nyström

Keyword(s):

Surface Area ◽

Area Estimation ◽

3D Objects

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Study on Nano-Hydroxyapatite Assisted Preparing by Ionic Liquids

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1015.501 ◽

2014 ◽

Vol 1015 ◽

pp. 501-504 ◽

Cited By ~ 1

Author(s):

Yong Guang Bi ◽

Xu Si Xu

Keyword(s):

Grain Size ◽

Ionic Liquids ◽

Specific Surface ◽

Surface Area ◽

Specific Surface Area ◽

Large Scale ◽

Preparation Method ◽

Raw Material ◽

Large Scale Preparation ◽

Scale Preparation

Papers with Ca (NO3)2• 4H2O and (NH4)2HPO4as raw material, prepared by ionic liquids assisted nanoHAP, resulting hexagonal nanoHAP are crystal grain size are 10-20nm level, are smaller nanometer range ; specific surface area, the findings show that ionic liquids have the technology to promote the significance of the preparation method can provide a reference for large-scale preparation of biomedical nanomaterials.

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