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Recent submissions

SCHOOL OF PHYSICAL SCIENCE: Recent submissions

Now showing items 1-20 of 637

White light photothermal lens spectrophotometer for the determination of absorption in scattering samples

Marcano, Aristides; Alvarado, Salvador; Meng, Junwei; Caballero, Daniel; Moares, Ernesto Marin; Edziah, Raymond (University of Cape Coast, 2014)

We developed a pump-probe photothermal lens spectrophotometer that uses a broadband arc-lamp and a set of interference filters toprovide tunable, nearly monochromatic radiation between 370 and 730 nm as the pump light ...
Wettability property in natural systems: A case of flying insects

Sackey, J.; Sone, B.T.; Dompreh, K. A.; Maaza, M. (University of Cape Coast, 2018)

Recently, scientists have demonstrated that material surfaces in nature that possess special wettability properties are composed of micro- and nanostructures. In this study, we focused on the importance of surface structures ...
Violet diode laser-induced chlorophyll fluorescence: a tool for assessing mosaic disease severity in cassava (Manihot esculenta Crantz) cultivars

Anderson, Benjamin; Eghan, Moses J; Asare-Bediako, Elvis; Bassuah, Paul K Buah (University of Cape Coast, 2012)

Violet diode laser-induced chlorophyll fluorescence was used in agronomical assessment (disease severity and average yield per plant). Because cassava (Manihot esculenta Crantz) is of economic importance, improved cultivars ...
Variation in the susceptibility of okra (Abelmoschus esculentus L. Moench) genotypes to okra mosaic virus and Podagrica species under field conditions

Asare-Bediako, Elvis; Agyarko, Faustina; Verbeek, Martin; Taah, Kingsley J.; Asare, Aaron; Agyei, Frimpong K.; Sarfo, Justice; Eghan, Moses Jojo; Combey, Rofella (University of Cape Coast, 2017)

A total of 21 okra (Abelmoschus escuentus L. Moench) genotypes were screened for their reactions against okra mosaic disease (OMD) and flea beetles (Podagrica species) infestations in field trials which were conducted from ...
Using violet laser-induced chlorophyll fluorescence emission spectra for crop yield assessment of cowpea (Vigna unguiculata (L) Walp) varieties

Anderson, Benjamin; Buah-Bassuah, Paul K; Tetteh, Jonathan P (University of Cape Coast, 2003)

The use of violet laser-induced chlorophyll fluorescence (LICF) emission spectra to monitor the growth of five varieties of cowpea in the University of Cape Coast Botanical Garden is presented. Radiation from a continuous-wave ...
Using meta-heuristic algorithm in spiking neural network for pattern recognition tasks

Turkson, Regina Esi; Liu, Sichao; Baagyere, Edward Y.; Eghan, Moses J. (University of Cape Coast, 2019)

The Bat Algorithm (BA) is a meta-heuristic algorithm based on echolocation behavior of microbats. The authors propose BA based Spiking Neural Network (SNN) model, where the advantages of BA and efficiency of SNN are exploited ...
Using Manchester system for the treatment of cervix carcinoma for a selected oncology facility in Ghana

Owusu-Banahene, J.; Darko, E.O.; Abubakar, M; Awuah, Baffour; Amoako, G. (University of Cape Coast, 2018)

The conventional treatment for carcinoma of the cervix is a combination of both the external Teletherapy and Low Dose Rate (LDR) intracavitary brachytherapy. However, there has been an increasing trend toward the use of ...
Use of Geo-Accumulation Index and Enrichment Factor in Assessing Pollution of Some Heavy Metals in KEEA, Ghana Tidal Flat

Vowotor, M. K.; Sackey, S. S.; Dumenya, C. (University of Cape Coast, 2019)

In environmental pollution studies, assessment of elevated levels of heavy metals as toxic pollutants has significant importance since it has detrimental consequences on the environment, which translates into damaging ...
Use of isotopes to study floodplain wetland and river flow interaction in the White Volta River basin, Ghana

Nyarko, Benjamin Kofi; Essumang, David Kofi; Eghan, Moses J.; Reichert, Barbara; Giesen, Nick van de; Vlek, Paul (University of Cape Coast, 2009)

Floodplain wetlands influence the timing and magnitude of stream responses to rainfall. In managing and sustaining the level of water resource usage in any river catchment as well as when modeling hydrological processes, ...
The Study of the structural colouration observed in the papilio crino fabricius, 1792 wings

Sackey, J; Nuru, ZY; Dompreh, KA; Maaza, M (University of Cape Coast, 2016)

The research on nano-photonics has been on the increase recently. Among the materials that exhibit stunning optical properties are the nano-photonic materials found in nature such as those on butterfly wings. The wing ...
Thermoelectric amplification of phonons in graphene

Dompreh, K. A.; Mensah, N. G.; Mensah, S. Y.; Fosuhene, S. K. (University of Cape Coast, 2016-07-07)

Amplification of acoustic in-plane phonons due to an external temperature gradient (rT) in single-layer graphene (SLG) was studied theoretically. The threshold temperature gradient ðrTÞ g 0 and the threshold voltage ðVTÞ ...
Treatment efficacy of laser photothermal therapy using gold nanorods

Manuchehrabadi, Navid; Toughiri, Raheleh; Bieberich, Charles; Cai, Hong; Attaluri, Anilchandra; Edziah, Raymond; Lalanne, Elaine; Johnson, Anthony M.; Ma, Ronghui; Zhu, Liang (University of Cape Coast, 2013)

In vivo experiments are performed to induce temperature elevations in implanted prostatic tumours in mice using 0.1 ml commercially available gold nanorod solution injected into the tumour. Tumour shrinkage studies and ...
Theoretical study of electromagnetic transport in Lepidoptera Danaus lexippus wing scales

Sackey, J.; Dompreh, K.A.; Mothudi, B.; Maaza, M. (University of Cape Coast, 2017)

This paper examines the electromagnetic energies developed in the scales of the Lepidoptera Danaus lexippus. The Green tensor method was used to calculate and simulate the energies at specific wavelengths. Scattering of ...
The use of lorentz group formalism in solving polarization effects of a birefringent single mode optical fiber

Ishiekwene, G.C.; Brown, C.S.; Mensah, S.Y.; Bak, A.E. (University of Cape Coast, 2000)

A theoretical analysis on the polarization effects of a light beam propagating in a birefrigent single-mode fiber is presented. We derive a system of differential equations representing the evolution of Stokes parameters ...
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 ...
The thermoelectric effect in a semiconductor superlattice in a non-quantized electric field

Mensah, S Y; Kangah, G K (University of Cape Coast, 1991)

The thermoelccvic effect in a semiconductor rupcrlatlicc in a non-quantized electric Beld is investigated for elections of the lowest muband in the Linear approamation of VT. nalytlcll expressionsfor the thermopower ...
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 ...
The negative differential effect in a semiconductor superlattice in the presence of an external electric field

Mensah, S Y (University of Cape Coast, 1992)

Bollzmann's equation is solved for an clectmn m lhe lowest miniband of a superlattice semiconductor under the influence of an fxlemal electric field E(t). The currentdensity electric field characteristic shows a negalive ...
The influence of external electric field on acoustoelectric effect in a superlattice

Mensah, S.Y.; Allotey, F.K.A.; Mensah, N.G.; Akrobotu, H.; Nkrumah, G. (University of Cape Coast, 2003)

The dc acoustoelectric current J" induced by the interaction of acoustic phonons with the conducting electrons is calculated. The calculation is done in the hypersound regime where q > I (here q is the acoustic phonon ...
Terahertz generation and amplification in graphene nanoribbons in multi-frequency electric fields

Rabiu, M. (University of Cape Coast, 2012)

We study theoretically a multi-frequency response of electrons in confined graphene subject to dc-ac driven fields. We explore the possibility for using graphene nanoribbons (GNRs) to generate and amplify terahertz (THz) ...

Now showing items 1-20 of 637

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