Lab-on-a-chip (LOC) technology has blossomed into a major new technology fundamentally influencing the sciences of life and nature. From a systemic point of view however, microfluidics is still in its infancy. Here, we present the concept of a microfluidic central processing unit (CPU) which shows remarkable similarities to early electronic Von Neumann microprocessors. It combines both control ...

BACKGROUND: The purpose of this study was to evaluate the sensitometric characteristics of Ultraspeed, Ektaspeed Plus and Insight dental radiographic films using manual and automatic processing systems. METHODS: In this experimental invitro study, an aluminum step-wedge was used to construct characteristic curves for D-, E- and F-speed radiographic films (Kodak Eastman, Rochester, USA). All fil...

Research activities in the fine chemicals industry involve the generation and analysis of huge amounts of chemical and biological data, and this has led to the development of highly sophisticated, computer-based, chemical information systems to support the research [ 11. Most chemical databases contain two-dimensional structural data, i.e. planar chemical structure diagrams, but there is also i...

We describe the design and function of a molecular logic system, by which a combinatorial recognition of the input signals is utilized to efficiently process chemically encoded information. Each chemical input can target simultaneously multiple domains on the same molecular platform, resulting in a unique combination of chemical states, each with its characteristic fluorescence output. Simple a...

A ny object that cannot be superimposed upon its mirror image is said to be chiral, and the two mirror image forms are called enantiomers. A person’s left and right hands are one familiar macroscopic example of chiral objects. Chirality is of immense interest in chemistry, because many organic molecules are chiral. Any atom in a molecule that is tetrahedrally bonded to four different functional...

Stemming from MEMS (MicroElectroMechanical System) developments, designs and fabrication technology, packaged microfluidic chips – used first for biological and chemical analysis (μTAS, Micro Total Analysis Systems) – were modified to perform chemical syntheses (1). In addition, chip devices for the mixing of miscible or immiscible fluids offered a novel means for the processing of this unit op...

Spatially distributed chemical excitable systems can work as information processing media in which information is coded in pulses of excitation [1, 2, 3, 4]. In some cases, like for example in the search for the optimum path in a labyrinth, the galgorithmsh used by a chemical medium is the most efficient. Feeling links between the processes of thinking in living organisms and the properties of ...

Agricultural waste biomass generated from agricultural production and food processing industry are abundant, such as durian  peel, mango peel, corn straw, rice bran, corn shell, potato peel and many more. Due to low commercial value, these wastes are disposed in landfill, which if not managed properly may cause environmental problems. Currently, environmental laws and regulations pertaining to ...

Modeling and simulation of processing plants are widely used in industry. Construction of a mathematical model for a plant is a time-consuming and error-prone task. In light of extensive advancements in computer science (both hardware and software), computers are becoming a necessary instrument in industrial activities. Many software tools for modeling, simulation and optimization of proces...