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Now showing items 1-20 of 637

Amplification of acoustic phonons in superlattice

Dompreh, K.A.; Mensah, S.Y.; Mensah, N.G.; Abukari, S.S. (University of Cape Coast, 1970)

The amplification of acoustic phonons in a superlattice in the presence of an electric field cos( ) has been investigated theoretically and numerically by computational methods. The calculation is done in the hypersound ...
Two results in lesniewski's mereology

Clay, Robert, E (Notre Dame Journal of Formal Logic, 1973-10)
Some mereological models

Clay, Robert, E (Notre Dame Journal of Formal Logic, 1974-01)
Rational Approximants to Holomorphic Functions in n-Dimensions

Lutterodt, C.H (Journal of mathematical analysis and applications, 1976)
Rational Approximants to Holomorphic Functions in n-Dimensions

Lutterodt, C. H (Journal of mathematical analysis and applications, 1976)

We present a general method of calculating rational approximants to holomorphic function in n-dimensions. We establish analogs of some well-known properties of Padé approximants. © 1976.
Studies of alpha particle registration in lr-115 type iiStudies of alpha particle registration in lr-115 type ii a solid state nuclear track detector a solid state nuclear track detector

Cwar, M. F.; Geraldo, L. P. (University of Cape Coast, 1981)

The experimental condition for use of the cellulose nitrate film LR-115 type II as alpha pa»tide detector? It was verified that the film* efficiency it • function of the alpha particle energy and etching conditions. The ...
Use of a flow-injection system in the evaluation of the characteristic behavior of neutral carriers in lithium ion-selective electrodes

Xie, Robert Y.; Gadzekpo, Victor P. Y.; Kadry, Azza M.; Yehia, Ibrahim A.; Ruzicka, Jaromir; Gary, D. Christian (University of Cape Coast, 1985)

A flow-injection system based on microconduits is used to investigate electrode characteristics such as selectivity, detection limit, and response and equilibrium times of the new ionophore, N,N,N’,N’-tetraisobutyl-5,5-d ...
Coated-wire Lithium lon-selective Electrodes Based on Polyal koxylate Complexes

Gadzekpo, Victor P. Y.; Moody, G. J.; Thomas, J. D. R. (University of Cape Coast, 1985-01-01)

Barium and lithium adducts of polyalkoxylates have been investigated as sensors in lithium ion-selective electrodes using a microconduit flow injection analysis system. Dioctyl phenylphosphonate (DOPP) and dioctyl ...
Problems in the Application of Ion-selective Electrodes to Serum Lithium Analysis

Gadzekpo, V. P. Y.; Moody, G. J.; Thomas, J. D. R (University of Cape Coast, 1986)

Three types of lithium ion-selective electrode (ISE) have been studied in microconduit flow injection analysis for their response to lithium ions in serum samples containing between 0.21 and 2.00 mM lithium. The effects ...
Solvent dependence of photochemical electron-transfer rates in a covalently linked porphyrin-quinone molecule

Arches, Mary D.; Gadzekpo, Victor P. Y.; Bolton, James R.; Schmidt, John A.; Weedon, Alan C. (University of Cape Coast, 1986)

The solvent dependence of intramolecular photochemical electron-transfer rate constants in a covalently linked porphyrin-amide-quinone molecule (PAQ) has been found in nine solvents to correlate reasonably well with the ...
Lithium lon-selective electrodes containing topo: determination of serum lithium by flow injection analysis

Xie, Robert Y.; Christian, Gary D. (University of Cape Coast, 1987)

Trioctylphosphine oxide (TOPO) acts as a neutral lithium carrier in lithium ion-selective electrode membranes. When TOPO was used with 1% potassium tetrakis(pchloropheny1) borate in NPOE – PVC membranes, the electrodes ...
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. ...
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 ...
Intramolecular photochemical electron transfer

Schmidt, John A.; Jing-Yao, Liu; Bolton, James R.; Archer, Mary D.; Gadzekpo, Victor P. Y. (University of Cape Coast, 1989)

The compound PAQ, which consists of a tetra-arylporphine attached to methyl-p-benzoquinone via a single amide linkage, exhibits light-induced intramolecular electron transfer from the porphyrin excited-singlet state to the ...
An experimental investigation of the break-up of a liquid drop falling in a miscible fluid

Arecchi, F. T.; Buah-Bassuah, K.; Perez-Garcia, Francini C.; Quercioli, F. (University of Cape Coast, 1989)

A liquid drop falling in a lighter miscible fluid either undergoes a cascade of fragmentations, each appearing as a dynamic instability, or it mixes by diffusion, depending on the value of a fragmentation number F. F is ...
Effect of cupric ion activity on calcium accumulation in juvenile flounder (paralichthys spp.)

Dodoo, David K.; Engel, David W.; Sunda, William G. (University of Cape Coast, 1990)

To test the effects of cupric ion activity on calcium accumulation, juvenile .flounder (Paralichthys spp.) were exposed to ive different activities of ionic copper for 14 days. The negative log of the cupric ion activity ...
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-quantize delectric Beld is investigated for elections of the lowest muband in the Linear approamation of VT. nalytlcll expressionsfor the thermopower and ...
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 ...
Fragment formation in the break-up of a drop falling in a miscible liquid

Arecchi, F. T.; Buah-Bassuah, P. K.; Perez-Garc, C. (University of Cape Coast, 1991)

When falling in a lighter miscible solvent, a drop of liquid deforms to a torus which then breaks up into several fragments or just disappears by diffusion. By using liquids of different compositions we show the universal ...
Amplification of acoustic waves due to an external temperature gradient in super lattices

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

Amplification of short-wave sound propagating along the axis of a semiconductor super lattice by electrons of the lowest mini band in an external temperature gradient is investigated theoretically. The mechanism of absorption ...

Now showing items 1-20 of 637

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