COLLEGE OF AGRICULTURAL & NATURAL SCIENCES: Recent submissions

  • One-step real-image reflection holograms 
    Buah-Bassuah, Paul K; Vannoni, Maurizio; Molesini, Giuseppe (University of Cape Coast, 2017-02-21)
    A holographic process is presented where the object is made of the real image produced by a two-mirror system. Single-step reflection hologram recording is achieved. Details of the process are given, optics concepts are ...
  • On the amplification of acoustic phonons in carbon nanotube 
    Dompreh, K. A.; Mensah, N. G.; Sakyi-Arthur, D.; Mensah, S. Y. (University of Cape Coast, 2016)
    We present a theoretical study of acoustic phonons amplification in Carbon Nanotubes (CNT). The phenomenon is via Cerenkov emission (CE) of acoustic phonons using intraband transitions proposed by Mensah et. al., [1] in ...
  • On a liquid drop ”falling” in a heavier miscible fluid 
    Buah-Bassuah, Paul K.; Rojas, Rene; Residori, Stefania; Arecchi, F.T. (University of Cape Coast, 2005)
    We report a new type of drop instability, where the density difference between the drop and the solvent is negative. We show that the drop falls inside the solvent down to a minimum height, then fragmentation takes place ...
  • Nonlinear polarization effects in a birefringent single mode optical fiber 
    Ishiekwene, G.C.; Mensah, S.Y.; Brown, C.S. (University of Cape Coast, 2001)
    The nonlinear polarization effects in a birefringent single mode optical fiber are studied using Jacobi elliptic functions. We find that the polarization state of the propagating beam depends on the initial polarization ...
  • Nonlinear conductivity in graphene 
    Abukaria, S. S.; Mensah, S. Y.; Musah, R.; Mensah, N. G.; Dompreh, K. A. (University of Cape Coast, 2015)
    We consider the tight-binding approximation for the description of energy bands of graphene, together with the standard Boltzmanns transport equation and constant relaxation time, an expression for the conductivity was ...
  • Nonlinear acoustoelectric effect in a semiconductor superlattice 
    Mensah, S Y; Ahllotey, F.K.A; Mensah, N.G. (University of Cape Coast, 1999)
    The acoustoelectric effect in a semiconductor superlattice (SL) has been studied for a hypersound in the region ql 1 (where q is the acoustic wave number and l is the electron mean free path). A nonlinear dependence of ...
  • Neutron activation analysis as a tool to determine concentration of selected metals in table salt mined from Benya Lagoon, Ghana 
    Vowotor, Michael K.; Sackey, Samuel S.; Amuah, Charles L. Y.; Huzortey, Andrew; Ahorlu, Dennis M.; Kortey, Godwin; Kuvedzi, Dickson (University of Cape Coast, 2019)
    Table salt is essential for life and if it contains metal impurities, it can affect the people that consume it. The Komenda Edina Eguafo Abrem municipality makes salt by evaporating brine from the Benya Lagoon. Benya lagoon ...
  • Negative high-harmonic differential conductivity in graphene nanoribbons 
    Rabiu, M.; Mensah, S. Y.; Abukari, S. S. (University of Cape Coast, 2012)
    We theoretically study current dynamics of graphene nanoribbons subject to bias and ac driven fields. We showed that graphene nanoribbons exhibit negative high-harmonic differential conductivity. Negative differential ...
  • Negative differential conductivity in carbon nanotubes in the presence of an external electric field 
    Abukari, S. S.; Mensah, S.Y.; Mensah, N. G.; Adu, K.W.; Dompreh, K. A.; Twum, A. K. (University of Cape Coast, 2000)
    We study theoretically the electron transport properties in carbon nanotubes under the influence of an external electric field () using Boltzmann’s equation. The current-density equation is derived. Negative differential ...
  • Nanotechnology for water purification: applications of nanotechnology methods in wastewater treatment 
    Kunduru, Konda Reddy; Nazarkovsky, Michael; Farah, Shady; Pawar, Rajendra P.; Basu, Arijit; Domb, Abraham J. (University of Cape Coast, 2017)
  • Multispectral imaging in combination with multivariate analysis discriminates selenite induced cataractous lenses from healthy lenses of sprague-dawley rats 
    Adueming, Peter Osei-Wusu; Eghan, Moses Jojo; Anderson, Benjamin; Kyei, Samuel; Opoku-Ansah, Jerry; Amuah, Charles L. Y.; Sackey, Samuel Sonko; Buah-Bassuah, Paul Kingsley (University of Cape Coast, 2017-07-07)
    Cataracts are the leading cause of blindness worldwide. Current methods for discriminating cataractous lenses from healthy lenses of Sprague-Dawley rats during preclinical studies are based on either histopathological or ...
  • Microstructure characterisation of alumina coating on steel by PEO 
    Wang, Y L; Wang, M; Zhou, M; Li, B J; Amoako, G; Jiang, Z H (University of Cape Coast, 2013)
    Alumina ceramic coating was prepared on Q235 carbon steel by plasma electrolytic oxidation. The discharge process was analysed according to the voltage–time curve. The microstructure of the ceramic coating was investigated ...
  • Microstructure and visible light photocatalytic activity of Fe–TiO2 films on steel by PEO 
    Wang, M.; Lei, Y. C.; Wang, Y. L.; Zhou, M.; Zhu, Q.; Wu, B.; Amoako, G.; Ding, H. (University of Cape Coast, 2013)
    Fe doped TiO2 ceramic films were fabricated on carbon steel by plasma electrolytic oxidation. The microstructure of the film was characterised, and the photocatalytic activities of the films were evaluated. The results ...
  • Microbial purification in well-water using uv-vis leds and monitoring using laser-induced fluorescence 
    Sackey, Samuel Sonko; Sefa-Ntiri, Baah; Mensah-Amoah, Patrick; Ntow, Jonathan; Vowotor, Michael Kwame; Huzortey, Andrew; Akyea, Angela (University of Cape Coast, 2017)
    Well-water contaminated by microbial bacteria has been purified using LEDs radiating in the ultra-violet and visible spectral regions. The contaminated water sample was exposed to the LEDs in specially constructed chambers ...
  • Laser spectroscopy of free molecular oxygen dispersed in wood materials 
    Alnis, J.; Anderson, B.; Sjoholm, M.; Somesfalean, G.; Svanberg, S. (University of Cape Coast, 2003-09-30)
    The recently introduced Gas in Scattering Media Absorption Spectroscopy (GASMAS) technique is applied to the study of various wood samples. Molecular oxygen in the pores of the strongly scattering material is detected using ...
  • MicroCT imaging and in vivo temperature elevations in implanted prostatic tumors in laser photothermal therapy using gold nanorods 
    Manuchehrabadi, N.; Attaluri, A.; Cai, H.; Edziah, R.; Lalanne, E.; Bieberich, C.; Ma, R.; Johnson, A.M.; Zhu, L. (University of Cape Coast, 2012)
    In this study, in vivo animal experiments are erformed on implanted enograph rostatic tumors in nude mice to investigate enhanced laser energy absorption in the tumors by an intratumoral injection of old nanorod solutions. ...
  • Micro-punching process based on spallation delamination induced by laser driven-flyer 
    Jianke, Di; Zhou, Ming; Li, Jian; Chen, Li; Zhang, Wei; Amoako, George (University of Cape Coast, 2011)
    In this article, we proposed a micro-punching process for microstructure on films based on laser driven flyer induced spallation delamination phenomenon at the interface between a film and its substrate. To validate such ...
  • Measurement Of optical turbidity of drinking water samples,using nephelometric and laser light techniques 
    Sefa-Ntiri, B.; Mensah-Amoah, P.; Okoto, R. J. S.; Tatchie, E. T. (University of Cape Coast, 2014)
    The specific objective of this study was to directly measure drinking water turbidity of six (6) groundwater samples of surface rivers, streams and hand-dug wells from Ghana, for sustainable national development. These ...
  • Making a microscope with readily available materials 
    Maurizio, Vannoni; Buah-Bassuah, Paul K; Molesini, Giuseppe (University of Cape Coast, 2007)
    The making of microscope devices using inexpensive or recovered materials is demonstrated. Examples of images illustrating the performance of such devices are presented. As a project at the undergraduate level, the task ...
  • Magnetoplasmon excitations at graphene ortex hall fluid edge 
    Rabiu, M.; Mensah, S. Y.; Seini, I. Y.; Abukari, S. S. (University of Cape Coast, 2015)
    We investigate magnetoplasmon dynamics localized on the edges of graphene ortex Hall fluid. The ortex matter captures an anomalous term that causes ortex localization near fluid boundary and creates a double boundary ...

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