Showing papers by "Nanyang Technological University published in 1975"
TL;DR: The isotopic composition of the carbon (δ13C values) of leaf tissue from 10 species and hybrids of orchids grown in Singapore fell into two groups, one having a mean value of-15.4
Abstract: The isotopic composition of the carbon (δ13C values) of leaf tissue from 10 species and hybrids of orchids grown in Singapore fell into two groups, one having a mean value of-15.4‰, the other-26.6‰. The least negative of these values was associated with thick-leaved plants (0.2–0.4 mm). This is consistent with the view that some orchids are CAM plants and others possess a C3 type of carbon fixation.
40 citations
TL;DR: In this article, a large percentage concentration of helium ions are observed, reaching a value as high as 50 per cent with a maximum at around 800 km, and the O+ drift velocity has been estimated.
14 citations
9 citations
TL;DR: Oxytocin administered intravenously to the anaesthetized rat and topically to the exposed vessels produced dilatation of the blood vessels of the cremaster muscle, similar to adrenaline in eliciting opposite effects when applied to the serosa or to the intima of skeletal muscle blood vessels.
Abstract: Oxytocin administered intravenously to the anaesthetized rat produced dilatation of the blood vessels of the cremaster muscle at concentrations ranging from 2.5 times 10-minus 11 to 2.5 times 10-minus 9 M. When applied topically to the exposed vessels it produced constriction at concentrations ranging from 2.5 times 10-minus 12 to 5.0 times 10-minus 8 M. Oxytocin was thus similar to adrenaline in eliciting opposite effects when applied to the serosa or to the intima of skeletal muscle blood vessels.
6 citations
3 citations
01 Jan 1975
TL;DR: In this article, the authors studied the localization of fringes in acoustical double exposure, multiple-beams, time-averaged and linearized subfringe holographic interferometry.
Abstract: We study the localization of fringes in acoustical double exposure, multiple-beams, time-averaged and linearized subfringe holographic interferometry. Both scanning and liquid surface methods are used. The distance of the localization fringes to the object surface is derived. It can be used to study the surface microstructure. Results from scanning method differ from the optical cases by showing the property of sound wave as long wavelength and can be detected linearly. We also apply the correlation function method to derive the intensity of acoustical holographic interference fringes for the scanning method. Results from liquid surface method are the same as that from optical holography because we do not consider the time varying properties of the acoustical fields. We derive the acoustical transfer function for the liquid surface method which is equivalent to the characteris- fringe function in optical holography. We finally discuss the applications of acoustical holographic interferometry.
3 citations
TL;DR: Wroblewski et al. as discussed by the authors proposed a model based on a f ragmenta t ion process with the pionizat ion always present in the model.
Abstract: Wroblewski ' s (1) dispersion l inear rule is ex t remely in te res t ing because experimenta l d~ta up to 300 GcV/c lie on a s t ra igh t l ine when one plots D = ( -- ~-b yielding a = b = 0 . 5 9 . In th is l e t te r we a t t e m p t to show th is dispersion l inear behaviour wi th in our model (~). Our model is based on a f ragmenta t ion process wi th pionizat ion always present . We have defined the probabil i t ies for producing n_ negat ive par t ic les as
2 citations
TL;DR: In this article, a method was proposed to evaluate the ratio of diffractive cross sections from the inclusive ∆ ∆ + ∆ particle ratio, using general kinematic features of fragmentation processes.
Abstract: By using general kinematic features of fragmentation processes, a method is proposed to evaluate the ratio of diffractive cross sections from the inclusive $\frac{{\ensuremath{\pi}}^{\ensuremath{-}}}{{\ensuremath{\pi}}^{+}}$ particle ratio.
1 citations
TL;DR: From an investigation of the inclusive spectra near the phase-space boundary, the authors obtained an independent determination of the following SU3 couplings:======Open image in new window======With α = 0.28,======Open Image:
Abstract: From an investigation of the inclusive spectra near the phase-space boundary one obtains an independent determination of the followingSU3 couplings:
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with α =0.28,
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and
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with α =0.26.