Zobrazeno 1 - 7
of 7
pro vyhledávání: '"A C, van Helden"'
Autor:
Anne C. Van Helden
Publikováno v:
Annals of Science. 51:477-495
Summary In 1714, the Dutch scholar Willem Jacob's Gravesande published a theoretical essay on how to optimize the air-pump. Although his paper did not attract much attention, there was one important supplier of air-pumps who knew about it: the Leiden
Autor:
Rob H. Van Gent, Anne C. Van Helden
Publikováno v:
Annals of science. 56(1)
Ever since they began to take an interest in lens grinding, the brothers Christiaan and Constantijn Huygens searched for high-quality glass to turn in to lenses. Historical research in combination with optical measurements on preserved lenses has all
Publikováno v:
Photodermatology, photoimmunologyphotomedicine. 7(4)
Measurement of the change in skin temperature caused by exposure of the skin to ultraviolet (UV) radiation may give insight into the mechanism responsible for the development of the UV erythema. Under controlled environmental conditions we determined
Autor:
C. van Helden, H.N.J. Poulisse
Publikováno v:
IFAC Proceedings Volumes. 18:43-47
A mathematical model is developed for a fairly large class of so-called fed-batch fermentation processes. The model consists of a set of non-linear stochastic differential equations. Measurements of a linear combination of states with additive noise
Publikováno v:
Biotechnology and bioengineering. 32(4)
In the present article a method is described to immobilize lipase from Candida rugosa on a hollow fiber membrane, and the use of such a system for the hydrolysis of lipids is reported. The membranes were ENKA hydrophilic Cuprophan-type hollow fibers,
Autor:
H.N.J. Poulisse, C. van Helden
A mathematical model is developed for a fairly large class of so-called fedbatch fermentation processes. The model consists of a set of non-linear stochastic differential equations. Measurements of a linear combination of states with additive noise a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da5b8f8705a188ba9d2ebd52079cb8a3
https://doi.org/10.1016/b978-0-08-032565-1.50009-0
https://doi.org/10.1016/b978-0-08-032565-1.50009-0
Publikováno v:
Clinical chemistry. 31(7)
We describe a kinetic immunonephelometric method for the determination of fibronectin in human plasma, used with the Beckman ICS rate nephelometer. The method is rapid and cost-effective. Two commercially available controls stated by the manufacturer