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Browsing SCHOOL OF PHYSICAL SCIENCE by Title

Browsing SCHOOL OF PHYSICAL SCIENCE by Title

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  • 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 the detection of influential outliers in linear regression analysis 
    Zakaria, Arimiyaw; Howard, Nathaniel Kwamina; Nkansah, Bismark Kwao (University of Cape Coast, 2014-07-30)
    In this paper, we propose a measure for detecting influential outliers in linear regression analysis. The performance of the proposed method, called the Coefficient of Determination Ratio (CDR), is then compared with some ...
  • On the existence of positive periodic solutions for totally nonlinear neutral differential equations of the second-order with functional delay 
    Essel, Emmanuel K.; Yankson, Ernest (University of Cape Coast, 2014)
    We prove that the totally nonlinear second-order neutral diferential equation dt2x(t) + p(t)ddtx(t) + q(t)h(x(t)) =ddtc(t, x(t − τ (t))) + f(t, ρ(x(t)), g(x(t − τ (t)))) has positive periodic solutions by employing the ...
  • On the one-outlier displaying component 
    Nkansah, B.K.; Gordor, B.K. (University of Cape Coast, 2012)
    A method of displaying an outlier in a multivariate data set is the Outlier Displaying Component. This method is based on the sample mean vector and the sum of squares and cross- product matrix. The main weakness of this ...
  • On-Site Sanitation Systems for Low-Income Countries: Technical Guidelines for Groundwater Pollution and Nuisance Control 
    Obeng, Peter Appiah; Oduro-Kwarteng, Sampson; Keraita, Bernard; Bregnhøj, Henrik; Abaidoo, Robert C.; Awuah, Esi; Konradsen, Flemming (University of Cape Coast, 2016)
    On-site sanitation systems, the commonest sanitation technologies in low-income countries, are central to the elimination of open defecation in such countries. Nevertheless, their selection and application in the physical ...
  • 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 ...
  • Optical identification of plasmodium alciparum malarial byproduct for parasite density estimation 
    Opoku-Ansah, Jerry; Eghan, Moses Jojo; Anderson, Benjamin; Boampong, Johnson Nyarko; Edziah, Raymond; Adueming, Peter Osei-Wusu; Amuah, Charles Lloyd Yeboah (University of Cape Coast, 2019-11-11)
    Plasmodium alciparum (P. alciparum) malarial degree of infection, termed as parasite density (PD), estimation is ital for point of-care diagnosis and treatment of the disease. In this work, we present application of optical ...
  • Optical imaging method for determining symptoms severity of cassava mosaic disease 
    Anderson, Benjamin; Eghan, Moses Jojo; Asare-Bediako, Elvis; Buah-Bassuah, Paul Kingsley (University of Cape Coast, 2015-10-10)
    Cassava mosaic disease (CMD) is a major constraint to cassava production in cassava growing regions. Severity of CMD symptoms on cassava leaves is usually assessed visually using an arbitrary scale, which is semi-qualitative, ...
  • Optimal control of a fishery utilizing compensation and critical depensation models 
    Ibrahim, Mahmud (University of Cape Coast, 2020-05-01)
    This study proposes optimal control problems with two different biological dynamics: a compensation model and a critical depensation model. The static equilibrium reference points of the models are defined and discussed. ...
  • Optimising ventilation to control odour in the ventilated improved pit latrine 
    Obeng, Peter A.; Oduro‑Kwarteng, Sampson; Keraita, Bernard; Bregnhøj, Henrik; Abaidoo, Robert C.; Awuah, Esi; Konradsen, Flemming (University of Cape Coast, 2018)
    The rate of ventilation through the vent pipe of a ventilated improved pit latrine is the main technical factor that determines its efficiency in odour control aside the maintenance and cleaning practices of the users. ...
  • Opto-electronic system for displacement and vibration measurements 
    Francini, F.; Macchiarulo, M.; Tiribilli, B.; Buah-Bassuah, P. K. (University of Cape Coast, 1987)
    A device capable of measuring small displacements ~nd vibrati~ns o~ a n:oving body is .presented. A small mirror, firmly attached to the object unde~ mv.eStlgatlOn, defiect~ a paIr ~~laser beams onto two distinct photodetectors. ...
  • Parallel kalman filter-based multi-human tracking in surveillance video 
    Yussiff, Abdul-Lateef; Yong, Suet-Peng; Baharudin, Baharum B. (University of Cape Coast, 2020)
    A novel approach to robust and fexible person tracking using an algorithm that integrates state of the arts techniques; an Enhanced Person Detector (EPD) and Kalman fltering algorithm. This proposed algorithm employs ...
  • Parallel kalman filter-based multi-human tracking in surveillance video 
    Yussiff, Abdul-Lateef; Yong, Suet-Peng; Baharudin, Baharum B. (University of Cape Coast, 2014)
    A novel approach to robust and fexible person tracking using an algorithm that integrates state of the arts techniques; An enhanced person detector (epd) and kalman filtering algorithm. This proposed algorithm employs ...
  • People detection enrichment for abnormal human activity detection 
    Yussiff, Abdul-Lateef; Suet-Peng, Yong; Baharudin, Baharum B. (University of Cape Coast, 2013)
    A vibrant branch of research in computer vision that has attracted a lot of attention for decades is the human activity understanding from video. A means for accurately locating humans in image or a video is a prerequisite ...
  • Performance evaluation of a deployed 4g Lte network 
    Tchao, E.T.; Gadze, J.D. (University of Cape Coast, 2018)
    In Ghana and many countries within Sub-Sahara Africa, Long Term Evolution (LTE) is being considered for use within the sectors of Governance, Energy distribution and transmission, Transport, Education and Health. Subscribers ...
  • Perfuoroalkyl acids (PFAAs) in the Pra and Kakum River basins and associated tap water in Ghana 
    Essumang, David K.; Eshun, Albert; Hogarh, Jonathan N.; Bentum, John K.; Adjei, Joseph K.; Negishi, Junya; Nakamichi, Shihori; Habibullah-Al-Mamun, Md; Masunaga, Shigeki (University of Cape Coast, 2016)
    Perfuoroalkyl acids (PFAAs) are persistent environmental pollutants that have been detected in various media including human serum. Due to concerns regarding their bioaccumulation and possible negative health effects, an ...
  • Periodic solutions for totally nonlinear neutral delay difference equations 
    Yankson, Ernest; Essel, Emmanuel K. (University of Cape Coast, 2015)
    We obtain sufficient conditions under which solutions of certain classes of totally nonlinear neutral delay difference equations are periodic. A reformulated version of a fixed point theorem of Krasnoselskii is used to ...
  • Periodicity in a System of differential equations with finite delay 
    Yankson, Ernest (University of Cape Coast, 2013)
    The existence and uniqueness of a periodic solution of the system of diferential equations ddtx(t) = A(t)x(t − τ ) are proved. In particular the Krasnoselskii’s fxed point theorem and the contraction mapping principle are ...
  • Periodicity in multiple delay volterra difference equations of neutral type 
    Yankson, E. (University of Cape Coast, 2018)
    We prove the existence and uniqueness of a periodic solution for the multiple delay diference neutral Volterra equation ∆x(n) = −∑Nj=1aj (n)x(n − τj (n)) + ∆Q(n, x(n − τ1(n)), ..., x(n − τN (n))+∑Nj=1∑nn−τj (n) kj (n, s)fj ...
  • Persistence and fate of soil applied c- lindane in a maize ecosystem 
    Yeboah, P.O.; Montford, K G.; Apoh, W.; Dodoo, S. (University of Cape Coast, 2000)
    C-lindane applied to soil surface in a maize ecosystem (one month after planting) was taken up by the plant. Within the first 25 days of treatment, 14C-lindane or its metabolites were found within the entire plant with the ...

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