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Search Results: 1 - 10 of 326618 matches for " G.E. Thompson "
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Semiconductive properties of anodic niobium oxides
,A.I. de; Rangel,C.M.; Skeldon,P.; Thompson,G.E.;
Portugaliae Electrochimica Acta , 2006,
Abstract: the semiconductive properties of anodic niobium oxides formed at constant potential and constant current density to different final voltages have been examined by mott-schottky analysis. thin anodic oxides were formed on sputtered niobium specimens at constant potential in the range of 2.5 to 10 vag/agcl in a borate buffer solution. thicker oxides were formed, also on sputtered niobium specimens, at a constant current density of 5 ma cm-2 in 0.1 m ammonium pentaborate solution to final voltages of 10, 50 and 100 v. capacitance measurements were performed in a borate buffer solution of ph 8.8, at a frequency range of 200 to 2000 hz, at a sweep rate of 5 mv s-1 from +2.5 to -1 vag/agcl. the results obtained show n-type semiconductor behaviour with a carrier density in the range of 8 ′ 1018 - 6 ′ 1019 cm-3 on films formed to 10 v. thicker films showed lower carrier densities in the range of 1 ′ 1018 - 2 ′ 1018 cm-3 with a calculated charge depletion layer of 33-36 nm.
Semiconductive properties of anodic niobium oxides
A.I. de Sá,C.M. Rangel,P. Skeldon,G.E. Thompson
Portugaliae Electrochimica Acta , 2006,
Abstract: The semiconductive properties of anodic niobium oxides formed at constant potential and constant current density to different final voltages have been examined by Mott-Schottky analysis. Thin anodic oxides were formed on sputtered niobium specimens at constant potential in the range of 2.5 to 10 V Ag/AgCl in a borate buffer solution. Thicker oxides were formed, also on sputtered niobium specimens, at a constant current density of 5 mA cm-2 in 0.1 M ammonium pentaborate solution to final voltages of 10, 50 and 100 V. Capacitance measurements were performed in a borate buffer solution of pH 8.8, at a frequency range of 200 to 2000 Hz, at a sweep rate of 5 mV s-1 from +2.5 to -1 V Ag/AgCl. The results obtained show n-type semiconductor behaviour with a carrier density in the range of 8 ′ 10(18) - 6 ′ 10(19) cm-3 on films formed to 10 V. Thicker films showed lower carrier densities in the range of 1 ′ 10(18) - 2 ′ 10(18) cm-3 with a calculated charge depletion layer of 33-36 nm.
Long-term prognosis of depression in primary care
Simon,G.E.;
Bulletin of the World Health Organization , 2000, DOI: 10.1590/S0042-96862000000400005
Abstract: this article uses longitudinal data from a primary care sample to examine long-term prognosis of depression. a sample of 225 patients initiating antidepressant treatment in primary care completed assessments of clinical outcome (hamilton depression rating scale and the mood module of the structured clinical interview for dsm-iiir) 1, 3, 6, 9, 12, 18 and 24 months after initiating treatment. the proportion of patients continuing to meet criteria for major depression fell rapidly to approximately 10% and remained at approximately that level throughout follow-up. the proportion meeting criteria for remission (hamilton depression score of 7 or less) rose gradually to approximately 45%. long-term prognosis (i.e. probability of remission at 6 months and beyond) was strongly related to remission status at 3 months (odds ratio 3.65; 95% confidence interval, 2.81-4.76) and only modestly related to various clinical characteristics assessed at baseline (e.g. prior history of recurrent depression, medical comorbidity, comorbid anxiety symptoms). the findings indicate that potentially modifiable risk factors influence the long-term prognosis of depression. this suggests that more systematic and effective depression treatment programmes might have an important effect on long-term course and reduce the overall burden of chronic and recurrent depression.
Professor M.A. Jaspan’s collections in the University of Hull
G.E. Marrison
Bijdragen tot de Taal-, Land- en Volkenkunde , 1989,
Abstract:
Alternative social structures and the limits of hierarchy in the modern kingdom of Tonga
G.E. Marcus
Bijdragen tot de Taal-, Land- en Volkenkunde , 1975,
Abstract:
Modern Balinese - A regional literature of Indonesia
G.E. Marrison
Bijdragen tot de Taal-, Land- en Volkenkunde , 1987,
Abstract:
Preface to the 2nd issue of the International Journal of Medicine and Biomedical Research, 2013
Erhabor G.E.
International Journal of Medicine and Biomedical Research , 2013, DOI: 10.14194/ijmbr.221
Abstract: No abstract for this article
The Peculiarities of Martensite Morphology in Nano- and Inhomogeneous Spaces
Monastyrsky G.E.
Proceedings of the International Conference Nanomaterials : Applications and Properties , 2013,
Abstract: The article describes certain experimental situations, in which the small volumes available for the phase transformation can dramatically affect the morphology, substructure of martensite, martensitic transformation itself. Martensitic structures in standalone nanoparticles as well as that one’s embedded in extrinsic matrix, joint nanograins and multiply connected spaces, gradient structures are given consideration. Much attention is paid to the problem of nucleation and propagation of martensitic phase through peculiar spaces having inhomogeneities and complex 3D connectivity with each other. The conclusion is made about inconsistency of the observed ultimate martensite microstructure in nanosized and inhomogeneous spaces with the current conception of the propagation of martensite-austenite boundary through the available for the transformation volumes as the interface, which sustains the invariant plane strain condition.
FEATURES OF FINANCING OF NANOTECHNOLOGICAL PROJECTS/ ОСОБЕННОСТИ ФИНАНСИРОВАНИЯ НАНОТЕХНОЛОГИЧЕСКИХ ПРОЕКТОВ
G.E. Muslimova
Voprosy Sovremennoj èkonomiki , 2013,
Abstract: The article discloses the main directions of development of venture financing, including, including development of operating mechanisms of the state support of the priority directions of innovative projects in the nanotechnological sphere, realized by the NNS participating companies; creation of system of tax incentives of investments of the enterprises and the population in research and development; formation of the capacious national market of the venture capital including investments of business angels; providing necessary conditions for activation of attraction of the foreign capital in a nanoindustry.
Organizational Barriers Limiting Women’s Participation in Women-In-Agriculture (Wia) Programme in Umuahia Agricultural Zone of Abia State, Nigeria
G.E. Ifenkwe
International Journal of Academic Research in Business and Social Sciences , 2012,
Abstract: Development literature is replete with evidence of high level of involvement of women in agricultural production and value addition activities in Nigeria. This paper highlights organizational barriers limiting women’s participation in Women-in-Agriculture (WIA) program, one of the women’s enabling agricultural program in Abia State, Nigeria. Multi-stage random sampling technique was adopted in selecting one hundred and twenty women farmers studied. Simple statistical tools (frequencies and percentages) were used in data analysis. The results show that agency-related and organizational problems accounted for over 80% of the constraints limiting participation in the program. They also differ significantly from client or farmer-related problems. Considering the huge financial investments in the agricultural sector, and the Federal Government’s policy thrust on food security, the paper recommends involvement of all stakeholders who must contribute their quota towards sustainable food security in Nigeria.
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