Comparative Assessment of Mould Growth Risk in Lightweight Insulating Assemblies Via Analysis of Hygrothermal Data and In Situ Evaluation

Most buildings in Greenland are built within the last 70 years. Within this relatively short period, the building styles have often changed; from small wooden houses in the 50ties to also encompass more industrialised buildings in the 70ties, and later more diverse technics. This paper describes the major tendencies in building construction of today. Apart from an extreme climate, one of the challenges in Greenland is the lack of building materials; almost everything has to be imported. Greenland is an island-operated community, with no interlinking road grid between towns and settlements. Therefore, everything must be transported by ship or plane. Furthermore, severe mould growth is a big problem. Consequently, three building strategies are currently prevailing. 1) In-situ concrete gables and partitioning walls, and facades with wooden studs. 2) Focus on non-organic material and therefore concrete structures with exterior insulation. 3) Strategies focussing on the process e.g. mainly using prefabricated elements. The paper describes the pro and cons for the different strategies seen in a Greenlandic context. The harsh climate makes Greenland a good test site for assessing new building designs. Furthermore, assessment of sustainability might be very different in Greenland from countries where resources and transportation is very different.

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Comparative assessment of in situ bioremediation potential of cadmium resistant acidophilic Pseudomonas putida 62BN and alkalophilic Pseudomonas monteilli 97AN strains on soybean

International Biodeterioration & Biodegradation ◽

10.1016/j.ibiod.2008.07.002 ◽

2009 ◽

Vol 63 (1) ◽

pp. 62-66 ◽

Cited By ~ 45

Author(s):

Anju Rani ◽

Yogesh S. Souche ◽

Reeta Goel

Keyword(s):

Pseudomonas Putida ◽

Comparative Assessment ◽

In Situ Bioremediation

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The removal of arsenic from arsenic-bearing groundwater in In-situ and Ex-situ environment using novel natural magnetic rock material and synthesized magnetic material as adsorbent: A comparative assessment

Environmental Pollution ◽

10.1016/j.envpol.2019.07.048 ◽

2019 ◽

Vol 253 ◽

pp. 768-778 ◽

Cited By ~ 6

Author(s):

Jyoti Prakash Maity ◽

Pei-Ru Ho ◽

Yi-Hsun Huang ◽

An-Cheng Sun ◽

Chien-Cheng Chen ◽

...

Keyword(s):

Magnetic Material ◽

Comparative Assessment ◽

Rock Material ◽

Ex Situ ◽

Removal Of Arsenic ◽

Magnetic Rock

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Comparative Assessment of the Accuracy of the Elevation differences obtained from different Geomatics Techniques and Instruments

Nigerian Journal of Environmental Sciences and Technology - March 2018 ◽

10.36263/nijest.2017.01.0021 ◽

2017 ◽

Vol 1 (1) ◽

pp. 136-145

Author(s):

H. A. P. Audu ◽

M. Y. Tijjani

Keyword(s):

Comparative Assessment ◽

Linear Measurements ◽

Third Order ◽

Total Station ◽

Acceptable Accuracy ◽

Reconnaissance Survey ◽

Instruments And Techniques ◽

The Difference ◽

Automatic Level

This study carried out the comparative evaluation of the accuracy of elevation differences determined from two Geomatics instruments and techniques in part of University of Benin, Ugbowo Campus. Reconnaissance survey was carried out and the two Geomatics instruments (Total station instrument and the Automatic level instrument) used for this study were tested and found to be in good working conditions. In line with the survey regulation, the position of the control stations (UB GPS101and UB GPS102) where the survey commenced were checked for disturbance and the obtained angular and linear measurements proved that the control stations were in situ. The perimeter traversing, using the total station instrument, with closed traverse technique and the perimeter levelling using the trigonometric levelling method and the level instrument with flying level both commenced from the GPS control stations and terminated at the same control stations. The known coordinates of UB GPS102, when compared with those determined with the total station instrument, have some millimetres differences. The difference in the elevation of the GPS control station and the elevation determined for the same control station with the total station instrument was in millimetre. These values were within the specified and acceptable accuracy limits. The accuracy of the tertiary traverse survey, which has satisfied the allowable accuracy limits for tertiary traverse survey, was 1: 41,428.043. The allowable accuracy for third order levelling for the study area was 26mm. Their computed accuracies using the total station and level instruments were 21mm and 13mm respectively. Although the elevations determined from the two Geomatics instruments met the standard accuracy limits for tertiary levelling, the accuracy of the elevations obtained with the level instrument is higher than those obtained with the total station instrument. These results are in conformity with the findings of some researchers on the related subject matter.

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