2,061 research outputs found
R.C. Farrell Store
No full textPhotograph - People standing in front of R.C. Farrell, General Merchant store, Athabasca, Alberta. Left to right: Lance Smith, Louis Menard, Romeo Farrell, Athela LaRue Farrell, and Ray Vari
A Review of: Biobloc Therapy, by John R.C. Mew
No full textThis text, written and published by its British author, John R.C. Mew, details an integrated orthodontic and orofacial myofunctional treatment approach entitled Biobloc Therapy [...
Preliminary results from a Water Economy and Livelihoods Survey (WELS) in Nigeria and Mali, sub-Saharan Africa : investigating water security across a rainfall transect
No full textA large proportion (47%) of people in sub-Saharan Africa live without access to safe water sources in rural areas (JMP, 2008). The need for sustainable development and management of water resources, particularly groundwater resources, remains a major priority, especially within the context of climate variability, population growth and pressures to increase food production (UN, 2000, Vörösmarty et al., 2000, JMP, 2008, MacDonald and Calow, 2010). In stark contrast to food scarcity, to date little systematic data collection has been done to investigate the role water scarcity has on livelihoods within rural communities in sub-Saharan Africa, particularly during droughts or periods of water stress (Calow et al., 2009).
A water, livelihoods and economy survey in West Africa was conducted as part of a one year DFID-funded research programme, aimed at improving understanding of the impacts of climate change on groundwater resources and local livelihoods http://www.bgs.ac.uk/GWResilience/. The main purpose of this survey was to investigate the access to and domestic use of a range of water sources (hand pumps, wells, springs, surface water sources and rainwater harvesting) within rural communities across a rainfall transect in sub-Saharan Africa. The seasonal water use and scarcity/stress patterns were investigated for rural communities, located on both sedimentary and basement settings, using community discussions and questionnaires based on a scaled down version of the WELS methodology (Coulter, 2010). Plate 1 shows a WEL survey being carried out in the Minna study area, central Nigeria.
The aim of this study is to investigate seasonal access to water supplies, by gathering information on the time taken to collect water, the different sources available at different times of year (wet and dry season) and the geological and hydrogeological conditions at each community. The hypothesis is that having a greater number of groundwater dependent water supplies in a community increases overall security of water access and reduces the time taken to collect water in the dry season. A secondary aim was to test whether a slimmed down WELS methodology based on that described by Coulter and Calow (2011) can be effectively applied to give useful information
Experimental Research and Numerical Analysis on the Law of Deteriorated Performance for R.C. Frame Structure with Seismic Damages under Elevated Temperature (part II)
No full textThe cracks were pre-settled to the R.C. frame structure caused by earthquake which was defined as the damage index ω during the modeling process with analysis software-ANASYS. The temperature field contour curve were calculated for the column and beam, the law of deteriorated bearing capacity with time for the R.C. frame structure under elevated temperature were brought forward，which can adapt to R.C. frame structure with different damage index ω caused by earthquake.The relationship between ω and deteriorated bearing capacity for R.C. frame structure was also given, which was proved to be effective and correct according to comparison with the data recorded from the elevated temperature experiment designed by author.</jats:p
Groundwater resource degradation : a framework for analysis with examples from China and Palestine
No full textGroundwater resources are vulnerable to physical degradation in the form of depletion, depletion-induced changes, and contamination. Degradation, commonly induced by human activity, has environmental, economic and social effects, which in turn impact on mankind. This paper develops a broad framework for analysing groundwater degradation problems and management strategies. It then applies the framework to two contrasting groundwater degradation situations in developing countries
Internal Friction in The Region of The Grain Boundary Peaks in Pure Zirconium and Dilute Zirconium Alloys
No full textTitle: Internal Friction in The Region of The Grain Boundary Peaks in Pure Zirconium and Dilute Zirconium Alloys, Author: R.C. Robinson, Location: ThodeInternal friction, in the region of the
grain boundary peaks, has been examined in nominally
pure zirconium and dilute zirconium alloys. Experimental
observations were made using both torsion and
reed internal friction pendulums. The effect of various
heat treatments on the peaks were investigated. Strain
amplitude dependent damping in the region of the Low
Temperature Peak was observed. A qualitative model
is presented to explain the experimental observations.ThesisMaster of Engineering (ME
De Fast-Fourier Transform: Het gebruik van de routine van R.C. Singleton
No full textDoel van dit rapport is de lezer inzicht te verschaffen in het gebruik van de FFT-routine van R.C. Singleton zoals die in het rekencentrum van de T.H. - Delft in gebruik is. Voor een beschrijving van de werking van deze routine wordt verwezen naar het in de literatuurlijst vermelde artikel van Singleton (Lit. 1). Met nadruk wordt erop gewezen dat er meerdere FFT-routines in omloop zijn die alle anders werken en daarom in gebruik kunnen verschillen. Het onderhavige rapport beschrijft uitsluitend het gebruik van de routine van Singleton. Als laatste punt in deze inleiding wordt speciaal het boek van Brigham genoemd (Lit. 2) waarin zeer veel informatie te vinden is over het gebruik van de FFT-methodeHydraulic EngineeringCivil Engineering and Geoscience
Avoiding gypsum geohazards : guidance for planning and construction
No full textThis information details the occurrence and characteristics of the rock and mineral gypsum, its highly soluble nature and the types of problems associated with it. These include subsidence, which can affect all construction including buildings, roads, railways and canals. Water leakage beneath dams is also described along with the aggravation of dissolution and subsidence caused by water abstraction. The financial losses caused by gypsum geohazards can be large and considerable cost savings can be generated by avoidance planning and the use of protective construction measures such as those detailed.
This report is has been prepared for planners, geologists and geotechnical engineers, throughout the world, to raise their awareness of gypsum geohazard problems and to help with local and national planning
Drought and community water supplies
No full textIn many countries drought management focuses almost exclusively on the question of food - despite growing evidence that access to secure water can also be a major problem. Drought can be planned for in rural water supply projects - especially by developing an understanding of the relationship between water availability, access and use
The Challenge of Reversing Theories to Hybridize Structures with Fiber Metal Laminate Design Concepts
No full textTo further optimize aeronautical structures, an increased level of material hybridization is required. Optimization efforts aim to identify optimal design solutions that satisfy prescribed requirements. However, this demands reversal of currently available knowledge on hybrid structural technologies, which are often formulated as theories predicting performance based on known load cases and selected material configurations. After briefly reviewing the available fundamental theories for strength, fatigue, and damage tolerance of hybrid structures, this paper discusses the challenges in reversing these theories. Solutions are proposed in which theories can be approximated to significantly reduce the computational time while maintaining the required level of accuracy.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Structural Integrity & Composite
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