COLLEGE OF AGRICULTURAL & NATURAL SCIENCES: Recent submissions

  • Light scattering investigation of amphiphile and polymer adsorption on the surface of colloidal particles with low optical contrast 
    Piazza, R.; Eghan, M.J.; Peyre, V.; Degiorgio, V. (University of Cape Coast, 1998)
    We have exploited the peculiar optical properties of fluorinated polymer colloids, which have a very low refractive index and a partially crystalline internal structure, to obtain accurate adsorption isotherms by combining ...
  • Effect of post-harvest led and uv light irradiation on the accumulation of flavonoids and limonoids in the segments of newhall navel oranges (Citrus sinensis Osbeck) 
    Liu, Shengyu; Hu, Linping; Jiang, Xi Dong; Wanpeng, Xi (University of Cape Coast, 2019-05-06)
    To investigate the effect of post-harvest light irradiation on the accumulation of flavonoids and limonoids, harvested Newhall navel oranges were continuously exposed to light-emitting diode (LED) and ultraviolet (UV) light ...
  • ateral vibrations measurement of powdery clay sample using speckle photography 
    Buah-Bassuah, P (University of Cape Coast, 2020)
    We report the use of lateral vibration of speckle patterns in studying the particle sizing of bulk powdery clay sample. A two- exposure recording was made on a high -resolution holographic plate placed in the observation ...
  • Laser-induced autofluorescence technique for plasmodium falciparum parasite density estimation 
    Opoku-Ansah, Jerry; Eghan, Moses Jojo; Anderson, Benjamin; Boampong, Johnson Nyarko; Buah-Bassuah, Paul Kingsley (University of Cape Coast, 2016-03-03)
    Malaria parasites, Plasmodium falciparum (P.falciparum) infections are taking a great toll on the lives of people worldwide, especially in developing countries. Recently, haemozoin detection using optical techniques tends ...
  • Laser stimulated thermal conductivity in chiral carbon nanotube 
    Twum, A.; Mensah, S. Y.; Mensah, N. G.; Dompreh, K. A.; Abukari, S.S.; Rabiu, M. (University of Cape Coast, 2012-08-04)
    An investigation of laser stimulated thermal conductivity in chiral CNT is presented. The thermal conductivity of a chiral CNT is calculated using a tractable analytical approach. This is done by solving the Boltzmann ...
  • Laser induced resistivity of chiral single wall carbon nanotubes 
    Twum, Anthony; Mensah, Samuel Yeboah; Edziah, Raymond; Arthur, Augustine (University of Cape Coast, 2020-07-10)
    Using the Boltzmann transport equation within the semi-classical approximation with constant relaxation time, we theoretically studied the dynamics of electrons in chiral single wall nanotubes (SWNTs)subjected to a temperature ...
  • Kerr ellipticity effect in a bmefreiigent optical feber 
    Ishiekwene, G.C.; Mensah, S.Y.; Brown, C.S. (University of Cape Coast, 2004-09)
    An intensity-dependent caange in the ellipticity of an input light beam leads to a characteristic shift in polarization instability. Dichroism gives rise to a self-induced ellipticity effect in the polarization state of ...
  • Investigation of Young’s modulus of elasticity in wood Using Electronic Speckle Pattern Interferometry (ESPI) 
    Tatchie, Ebenezer T.; Langehanenberg, Patrik; Kemper, Björn; Buah-Bassuah, P.K.; Bally, Gert von (University of Cape Coast, 2007)
    Electronic Speckle Pattern Interferometry (ESPI) is a holographic interferometric non-contact optical technique used to measure in-plane and out-of-plane object displacements. This optical method was adopted to measure ...
  • 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 ...
  • Interaction of kink-lattice solitons with small-amplitude waves in finite-size superlattices 
    Mensah, S.Y.; Dikande, A.M.; Allotey, F.K.A.; Mensah, N.G. (University of Cape Coast, 1999-09)
    Propagation of large-amplitude electromagnetic fields and their interactions with small-amplitude waves in finite superlattices are considered in the framework of the sine-Gordon theory. Finite-size effects result in ...
  • Infrared digital holographic imaging 
    Ferraro, Pietro; Miccio, Lisa; Grilli, Simonetta; Meucci, Riccardo; Nicola, Sergio De; Buah-Bassuah, Paul (University of Cape Coast, 2014)
  • Induced hall-like current by acoustic phonons in semiconductor fluorinated carbon nanotube 
    Sakyi-Arthur, Daniel; Mensah, Samuel Y.; Adu, Kofi W.; Dompreh, Kwadwo A.; Edziah, Raymond; Mensah, Natalia G.; Jebuni-Adanu, Cynthia (University of Cape Coast, 2020-05-12)
    We show that Hall-like current can be induced by acoustic phonons in a nondegenerate, semiconductor fluorine-doped single-walled carbon nanotube (FSWCNT) using a tractable analytical approach in the hypersound regime q ...
  • Hypersound absorption of acoustic phonons in a degenerate carbon nanotube 
    Shmelev, G M; Mensah, S Y; Tsurkan, G I (University of Cape Coast, 1988)
    Short-wave sound absorption propagating along the axis of a semiconductor superlattice by electrons of the lowest miniband in a non-quantised electric field is investigated theoretically. The mechanism of the attenuation ...
  • Hypersound absorption of acoustic phonons in a degenerate carbon nanotube 
    Dompreh, K. A.; Mensah, N. G.; Mensah, S. Y.; Abukari, S. S.; Sam, F.; Edziah, R. (University of Cape Coast, 2015)
    Absorption of acoustic phonons was studied in degenerate Carbon Nanotube (i.e. where the electrons are found close to the Fermi level). The calculation of the hypersound absorption coefficient (Γ) was done in the regime ...
  • Hydrodynamic study of edge spin-vortex excitations of fractional quantum hall fluid 
    Rabiu, M.; Mensah, S. Y.; Seini, I. Y.; Abukari, S. S. (University of Cape Coast, 2018)
    We undertake a theoretical study of edge spin-vortex excitations in fractional quantum Hall fluid. This is done in view of quantised Euler hydrodynamics theory. The dispersions of true excitations for fractions within 0 ≤ ...
  • Hot electrons injection in carbon nanotubes under the influence of quasi-static ac-field 
    Amekpewu, M.; Mensah, S. Y.; Musaha, R.; Mensah, N. G.; Abukari, S. S.; Dompreh, K. A. (University of Cape Coast, 2015)
    Hot electrons injection in carbon nanotubes (CNTs ) where in addition to applied dc field (E), there exist simultaneously a quasi-static ac electric field (i.e. when the frequency ω of ac field is much less than the ...
  • High-Frequency Electric Field Induced Nonlinear Electron Transport in Chiral Carbon Nanotubes 
    Abukari, Sulemana S.; Mensah, Samuel Y.; Rabiu, Musah; Adu, Kofi W.; Mensah, Natalia G.; Twum, Anthony; Owusu, Alfred; Dompreh, Kwadwo A.; Mensah-Amoah, Patrick; Amekpewu, Matthew (University of Cape Coast, 2015-11-24)
    We investigate theoretically the high frequency complex conductivity in carbon nanotubes that are stimulated axially by a strong inhomogeneous electric field of the form Et t ) . Using the kinetic approach based on ...
  • High repetition-rate laser z-scan measurements: criterion for recognizing adverse thermal effects 
    Edziah, Raymond (University of Cape Coast, 2019-03-30)
    This study reports z-scan measurements in which high-repetition-rate and reduced repetition-rate (pulse-picked) laser beams were employed using a standard sample, carbon disulfide (CS2) contained in supposedly high ...
  • High frequency conductivity of hot electrons in carbon nanotubes 
    Amekpewua, M.; Mensah, S. Y.; Musah, R.; Mensah, N. G.; Abukari, S. S.; Dompreh, K. A. (University of Cape Coast, 2015)
    High frequency conductivity of hot electrons in undoped single walled achiral carbon nanotubes (CNTs) under the influence of ac-dc driven fields is considered. We investigated semi classically by solving the Boltzmann’s ...
  • High frequency conductivity in carbon nanotubes 
    Abukari, S. S.; Mensah, S. Y.; Mensah, N. G.; Adu, K. A.; Rabiu, M.; Twum, A. (University of Cape Coast, 2012-12-05)
    We report on theoretical analysis of high frequency conductivity in carbon nanotubes. Using the kinetic equation with constant relaxation time, an analytical expression for the complex conductivity is obtained. The real ...

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