in this article, the immobilization of microsomal membranes on fractosil and hexadecylfractosil by hydrophobic adsorption is reported. microsomes were prepared from rat brain and thecatalytic activity of antimycin a insensitive nadh-cytochrome c reductase (nccr), one of themembrane bound enzymes in the microsomal electron transport chain, was chosen as a representative ofthe microsomal membrane...

a series of x(co, mn)/tio2 catalysts (x=2–12wt.%) containing 25%co and 75%mn were prepared by the co-impregnation method. all prepared catalysts have been tested in fischer-tropsch synthesis for production of c2-c4 olefins. it was found that the catalyst containing 8wt.%(co,mn)/tio2 is an optimal catalyst for production of c2-c4 olefins. the effect of operation conditions such as the h2/co mola...

in this paper, a new continuous ant colony optimization (caco) algorithm is proposed for optimal reservoir operation. the paper presents a new method of determining and setting a complete set of control parameters for any given problem, saving the user from a tedious trial and error based approach to determine them. the paper also proposes an elitist strategy for caco algorithm where best solut...

The paper describes the current performance of the primary clock CS1 of the Physikalisch-Technische Bundesanstalt (PTB). The clock employs a thermal atomic beam and magnetic state selection. After major reconstruction during 1995 and 1996, routine clock operation was restarted in May 1997. Results of comparisons with UTC(PTB) and other internationally recognized time scales are presented. An ev...

The primary clocks CS1 and CS2 have been developed and operated by the Physikalisch-Technische Bundesanstalt, Braunschweig, Germany. By their contributions to the definition of the scale unit of International Atomic Time they have provided access to the realization of the SI second over decades with exceptional accuracy. They have stood out against other primary clocks by the novelty of their d...

“Mojo Nation” was a network for robust, decentralized file storage and transfer. It was first released to the public in July, 2000, and remained in continuous operation until February, 2002. Over 100,000 people downloaded and used the Mojo Nation software. We observe some surprising and problematic behavior of the users as a group. We describe several specific problems in the design of Mojo Nat...

In order to achieve continuous operation and thus facilitate use of vision in a dynamic scenario it is necessary to introduce a purpose for the visual processing in order to provide information that may control the visual processing and thus limit the amount of resources needed to obtain the required results. A proposed architecture for vision systems is presented together with an architecture ...

We put forward a revised definition of stably compact spaces which allows us to show their equivalence with Nachbin’s compact ordered spaces in an entirely elementary fashion. We then exhibit some constructions for stably compact spaces which apparently have not appeared in the literature before. These constructions allow us to show that the set of (sub-)probability valuations can be equipped w...