Browsing by Title
Now showing items 30482-30501 of 35418
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Solar geoengineering : the case for an international non-use agreement
(2022)Solar geoengineering is gaining prominence in climate change debates as an issue worth studying; for some it is even a potential future policy option. We argue here against this increasing normalization of solar ... -
Solar heating and disinfection of water : an application for rural areas in Southern Africa
(North-West University, 2003)Life is not easy for the low-income rural population of Southern Africa. This includes those living in the informal settlements around cities. It is in part due to shortcomings in basic services such as water, sanitation ... -
Solar modulation of cosmic ray positrons in a very quiet heliosphere
(PoS, 2017)Since the beginning of the space exploration era, solar activity was observed at its lowest level during 2006 to 2009. During this period, the PAMELA space experiment observed spectra for galactic cosmic rays, specifically ... -
Solar modulation of cosmic rays
(Springer Nature, 2013)This is an overview of the solar modulation of cosmic rays in the heliosphere. It is a broad topic with numerous intriguing aspects so that a research framework has to be chosen to concentrate on. The review focuses on ... -
The solar modulation of electrons in the heliosphere
(Springer Link, 2013)The propagation and modulation of electrons in the heliosphere play an important part in improving our understanding and assessment of the modulation processes. A full three-dimensional numerical model is used to ... -
The solar modulation of protons and anti-protons
(Sissa Medialab, 2019)A comprehensive, three-dimensional drift model is used to study the solar modulation of cosmic-ray protons and particularly of anti-protons. Spectra for protons and anti-protons from 10 MeV to 70 GeV are computed based on ... -
Solar power pumping system for domestic appliances
(IEEE, 2014)With the world encountering huge pollution problems, use of renewable energy is being encouraged in place of fossils fuels for electricity generation. On such renewable energies is solar power. Solar powered systems are ... -
Solar powered DC refrigerator with a monitoring and control system
(IEEE, 2018)Food, medicine and vaccine in developing countries are often difficult to preserve due to epileptic power supply from the utility companies. In other to reduce the over dependence on the utility company and harness the ... -
Solar powered peltier cooling storage for vaccines in rural areas
(IJEECS, 2019)The research presented in this paper proposes a new design of a vaccine cooling and storage unit that can keep vaccines in the cold chain (2°C to 8°C). This design was done to facilitate effective completion of the ... -
Solar powered UAV with remote monitoring and thermal imaging system for transmission line inspection
(SPC, 2018)Eskom, South Africa’s electricity utility organisation, dedicates an enormous amount of resources in the form of time and money to visually inspect the conditions of these transmission lines on an annual basis. These ... -
Solar thermal augmentation of the regenerative feed-heaters in a supercritical Rankine cycle with a coalfired boiler
(2015)Conventional concentrating solar power (CSP) plants typically have a very high levelised cost of electricity (LCOE) compared with coal-fired power stations. To generate 1 kWh of electrical energy from a conventional linear ... -
Solar ultraviolet radiation exposure and sun protection behaviors and knowledge among a high‐risk and overlooked group of outdoor workers in South Africa
(Wiley, 2019)The exposure of outdoor car guards to solar ultraviolet radi- ation (UVR), the majority with deeply pigmented skin, to solar UVR was measured for fi ve consecutive days during early spring (September 2017) in South ... -
Solar UV radiation-induced non-melanoma skin cancer as an occupational reportable disease: international experience to inform South Africa
(MettaMedia, 2017)Background: Occupational solar ultraviolet radiation (UVR) exposure is a skin cancer risk factor. Outdoor workers have long exposure hours and are in need of photoprotection against solar UVR, a Group 1-defined carcinogen. ... -
Solar wind turbulence: connections with energetic particles
(Elsevier, 2021)For the solar wind, a wealth of observational evidence indicates that turbulence is an important dynamical process for velocity (v), magnetic (b), and other related fluctuations at MHD (fluid) scales. Here we review such ... -
The solar-cycle dependence of the heliospheric diffusion tensor
(North-West University, 2015)Long-term cosmic-ray modulation studies using ab initio numerical modulation models require an understanding of the solar-cycle dependence of the heliospheric diffusion tensor. Such an understanding requires information ... -
The solid state and solvent inclusion properties of gatifloxacin crystal forms
(North-West University, 2006) -
Solid state concerns during drug discovery and development: thermodynamic and kinetic aspects of crystal polymorphism and the special cases of concomitant polymorphs, co-crystals and glasses
(Bentham Science, 2017)During drug discovery and development the thermodynamics and kinetics of crystal form transitions must be studied and the fundamental properties of polymorphs must be identified. However, despite the accumulation of knowledge ... -
Solid waste management practices in Zimbabwe: a case study of one secondary school
(AOSIS, 2019)The discourse on waste management in general and solid waste management in particular has captured the interest of many scholars. Although there is a plethora of literature on the solid waste management phenomenon globally, ... -
Solid-state properties of pharmaceuticals
(North-West University, 2008)The complexity of polymorphic interconversions emphasized the need for a well defined study to investigate the solid-state properties of selected pharmaceutical solids, the thermodynamic stability of various polymorphic ... -
Solitary and periodic wave solutions of the Majda-Biello system
(World Scientific Publishing, 2016)In this paper, we present the exact solutions of the Majda-Biello system. This system describes the nonlinear interaction of long-wavelength equatorial Rossby waves and barotropic Rossby waves with a substantial midlatitude ...
