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Browsing Department of Physics by Title

Browsing Department of Physics by Title

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  • Rainfall variability over Ghana: model versus rain gauge observation 
    Nkrumah, Francis; Klutse, Nana Ama Browne; Adukpo, David Cudjoe; Owusu, Kwadwo; Quagraine, Kwesi Akumenyi (University of Cape Coast, 2014)
    This paper used the International Centre for Theoretical Physics (ICTP) Regional Climate Model, Version 3 (RegCM3) and rain gauge data selected from the Ghana Meteorological Agency (GMet) from 1990 to 2008 to investigate ...
  • Rapid laser direct writing of plasmonic components 
    Amoako, G.; Zhang, W.; Zhou, M.; Sackey, S. S.; Mensah-Amoah, P. (University of Cape Coast, 2017)
    A new device named technology-plasmonics has recently emerged and can be used to manipulate light at the nanoscale level. Here, we report the method of two-photon photopolymerization for rapid laser direct writing of ...
  • Recent trends in the daily rainfall regime in Southern West Africa 
    Nkrumah, Francis; Vischel, Théo; Panthou, Geremy; Klutse, Nana Ama Browne; Adukpo, David C.; Diedhiou, Arona (University of Cape Coast, 2019)
    Extreme climate events, either being linked to dry spells or extreme precipitation, are of major concern in Africa, a region in which the economy and population are highly vulnerable to climate hazards. However, recent ...
  • Recent trends in the daily rainfall regime in Southern West Africa 
    Nkrumah, Francis; Vischel, Théo; Panthou, Geremy; Klutse, Nana Ama Browne; Adukpo, David C.; Diedhiou, Arona (University of Cape Coast, 2019-11-26)
    Extreme climate events, either eing linked to dry spells or extreme precipitation, are of major concern in Africa, a region in which the economy and population are highly vulnerable to climate hazards. However, recent ...
  • Rectification due to harmonic mixing of two coherent electromagnetic waves with commensurate frequencies in carbon nanotubes 
    Abukari, Sulemana S.; Adu, Kofi W.; Mensah, Samuel Y.; Mensah, Natalia G.; Rabiu, Musah; Twum, Anthony; Amekpewu, Mathew; Dompreh, Kwadwo A. (University of Cape Coast, 2013)
    We report on a theoretical investigation of carbon nanotubes subjected to a pure alternating electric field consisting of two phase-shifted harmonic fields of frequencies ω1 = Ω and ω2 = 2Ω (harmonic mixing) without any ...
  • The Relationship between capital structure measures and financial performance: evidence from Ghana 
    Mireku, Kwame; Mensah, Samuel; Ogoe, Emmanuel (University of Cape Coast, 2014)
    One of the areas that has been a focus of intense debate when it comes to capital structure research is whether to use the book value or market value of capital structure as the accurate measure of financial leverage (Salehi ...
  • Removal of Pb 2+ and Fe2+from water samples in Ghana by synthetic zeolites as measured by atomic absorption spectroscopy and light transmission experiments 
    Sefa-Ntiri, B.; Kwakye-Awuah, B.; Mensah-Amoah, P.; Williams, C. (University of Cape Coast, 2015)
    The removal efficiencies of laboratory-synthesized zeolite types LTA and LTX on lead and iron in water samples collected from rivers, streams, and wells from Central and Volta regions of Ghana were investigated. The ...
  • A retrofitted metallurgical microscope using light emitting diodes for multi-spectral imaging 
    Opoku-Ansah, Jerry; Anderson, Benjamin; Eghan, Moses J.; Adueming, Peter Osei-Wusu; Amuah, Charles L.Y.; Sackey, Samuel S. (University of Cape Coast, 2017-08-07)
    Multi-spectral imaging (MSI) has made diagnosis of microscopic samples considerably easier and information abound. Most MSI systems use continuum light sources and filters for imaging purposes. However, these light sources ...
  • A retrospective study of lower limb cellulitis in a regional hospital in Ghana 
    Mensah, S; Maison, P; Morna, M; Cobbold, S; Duah, AA; Debrah, S; Ganiyu, R.A (University of Cape Coast, 2019)
    Background: Cellulitis is a non-necrotizing inflammation of the dermis of skin and subcutaneous tissues. Lower limb cellulitis is a common cause of hospitalization in Ghana but scarcely reported. Objective: To document ...
  • Scanning digital holography at 10.6μm for large scene reconstruction 
    Mensah, Philip; Locatelli, Massimiliano; Pugliese, Eugenio; Poggi, Pasquale; Bassuah, Paul K Buah; Meucci, Riccardo (University of Cape Coast, 2018-05-18)
    We demonstrate amplitude reconstruction of a very large scene hologram recorded by means of digital holography at 10.6 microns. Infrared digital holography is characterized by a low vibration sensitivity and a large field ...
  • Scatter radiation dose assessment in the radiology department of Cape Coast Teaching Hospital-Ghana+5 
    Owusu-Banahene, J.; Darko, E. O.; Charles, D. F.; Maruf, A.; Hanan, I.; Amoako, G. (University of Cape Coast, 2018-12-26)
    During the operation of an X-ray machine, if the radiation protection of X-ray room is insufficient, not only the patient but also clinical staffs as well as public are exposed to high X-ray exposures. In this research ...
  • Sciamachy validation using ground-based doas measurements of the University of Bremen Bredom network 
    Richter, A.; Adukpo, D.; Fietkau, S.; Heckel, A.; Ladstätter-Weißenmayer, A.; Löwe, A.; Medeke, T.; Oetjen, H.; Wittrock, F.; Burrows, J. P. (University of Cape Coast, 2002)
    A network of ground-based UV/visible DOAS instruments operated by the University of Bremen is used to validate total column measurements from the SCIAMACHY instrument on ENVISAT from the tropics to the Arctic. Measurement ...
  • The Scope of Non-Trauma Lower Limb Amputations at the Komfo Anokye Teaching Hospital, Kumasi-Ghana 
    Kyei, I.; Dogbe, j; Laraen-Reindorf, R; Mensah, S (University of Cape Coast, 2015-11-19)
    Background: Lower limb amputation has a significant impact on the quality of life of the affected individual and family. Non-trauma amputations are the result of neglected public health conditions like complications of ...
  • A security technique for authentication and security of medical images in health information systems 
    Quist-Aphetsi, Kester; Laurent, Nana; Pascu, Anca Christine; Gire, Sophie; Eghan, Jojo M.; Quaynor, Nii Narku (University of Cape Coast, 2015)
    Medical images stored in health information systems, cloud or other systems are of key importance. Privacy and security needs to be guaranteed for such images through encryption and authentication processes. Encrypted and ...
  • A sedimentation method for the determination of the particle size of finely divided materials (such as hydrated lime) 
    Bishop, Dana L. (University of Cape Coast, 2015)
    This paper reports a comparison between a sedimentation method of determining particle size distribution and a microscopic method and also some data on hydrated lime. Glass spherules were prepared from pyrex glass and ...
  • Semiconductor fluorinated carbon nanotube as a low voltage current amplifier acoustic device 
    Sakyi-Arthur, D.; Mensah, S. Y.; Adu, K. W.; Dompreh, K. A.; Edziah, R.; Mensah, N.; Jebuni-Adanu, C. (University of Cape Coast, 2020-02-12)
    Acoustoelectric effect (AE) in a non-degenerate fluorinated single walled carbon nanotube (FSWCNT) semiconductor was carried out using a tractable analytical approach in the hypersound regime q 1 , where q is the acoustic ...
  • A simple polarized-based diffused reflectance colour imaging system 
    Jayaweera, H. H. E.; Anderson, B.; Eghan, M.J. (University of Cape Coast, 2012)
    A simple polarized-based diffuse reflectance imaging system has been developed. The system is designed for both in vivo and in vitro imaging of agricultural specimen in the visible region. The system uses a commercial web ...
  • Simulation studies of plasmon enhanced evanescent near-field optical lithography 
    Sefa-Ntiri, B.; Docker, P.; Ward, M.C.; Prewett, P.D. (University of Cape Coast, 2005)
    A finite element analysis (FEA) of surface lasmon polariton (SPP) assisted evanescent near field optical lithography (ENFOL) is described. A gold on silicon nitride nanostructured, low-stress, conformable mask is used to ...
  • Soil textural classification by a photosedimentation method 
    Buah-Bassuah, Paul K.; Euzzor, Stefano; Francini, Franco; Quansah, Gabriel W.; Sansoni, Paola (University of Cape Coast, 1998)
    A photosedimentation technique is used to analyze the size composition of soil samples. The number and size of the particles are determined, respectively, by the Stokes formula and the Beer–Lambert law, measuring time-of-flight ...
  • Soliton excitation in superlattice 
    Mensah, S.Y.; Allotey, F.K.A.; Mensah, N.G.; Twum, A.K. (University of Cape Coast, 1995-10)
    Excitation of soliton in superlattice has been investigated theoretically. It is noted that the soliton velocity u and the length L depend on the amplitude Eo and that an increase in the amplitude causes soliton width L ...

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