Zobrazeno 1 - 10
of 43
pro vyhledávání: '"V. H. Rees"'
Publikováno v:
South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde. 91(8)
To assess the acceptability of the female condom to different groups of women and their partners in South Africa.Descriptive, cross-sectional study.Multicentre study conducted in five sites.The study recruited 678 women from five centres to an accept
Publikováno v:
South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde. 90(12)
Publikováno v:
The British journal of family planning. 24(1)
This study examines the compliance, use behaviour and knowledge of method of women using injectable and oral contraceptives in two clinic sites in the Johannesburg area, South Africa. An interviewer administered questionnaire was used to collect info
Publikováno v:
The Journal of Agricultural Science. 100:601-605
SUMMARYExperiments are described which study the effect of density and chop length on the rate of diffusion of oxygen into silage and equations are presented which enable the rate of diffusion to be calculated under laboratory conditions. The concept
Autor:
D. V. H. Rees
Publikováno v:
Grass and Forage Science. 29:47-55
Experiments to determine the exposed layer drying rate of cut leaves and stems of a tetraploid (Sabel) and diploid (S23) ryegrass are described. Drying was achieved by passing air through the crop; the changes in weight were monitored continuously. A
Publikováno v:
Journal of Agricultural Engineering Research. 28:107-114
A method of obtaining an undisturbed sample of silage is described, together with apparatus which enables the porosity and diffusion rates for gases in the sample to be measured under laboratory conditions. The theory of both methods is discussed and
Publikováno v:
Grass and Forage Science. 20:273-282
On 6 dates during a period of 14 days, S48 timothy seed was combine harvested directly and then dried in layers 6 in. deep at air temperatures of 77, 95, 104 and 122° F and airflows of 20 and 35 ft/min. The effect of these drying conditions upon sub
Autor:
M. E. Nellist, D. V. H. Rees
Publikováno v:
Grass and Forage Science. 22:264-269
Autor:
D. V. H. Rees, M. E. Nellist
Publikováno v:
Grass and Forage Science. 23:336-342
An experiment is described in which 32 plots of S24 ryegrass were harvested by two methods, direct- and swath-harvesting at four cutting dates over a period of 14 days. The difference between the two methods was marginal but highest yields and qualit
Publikováno v:
Grass and Forage Science. 21:80-84