Abstract: Disclosed is a system and method for providing a virtual terminal. A virtual cloud server may configure a plurality of virtual terminals by employing a virtual machine in a cloud environment. The virtual cloud server may provide an application of a heterogeneous platform to a terminal that accesses the virtual cloud server. A cooperative middleware apparatus may determine a cloud server suitable for a mobile terminal among a plurality of cloud servers, based on content information of content and virtual terminal information stored in the plurality of cloud servers.

Abstract: Disclosed is a system and method for providing a virtual terminal. A virtual cloud server may configure a plurality of virtual terminals by employing a virtual machine in a cloud environment. The virtual cloud server may provide an application of a heterogeneous platform to a terminal that accesses the virtual cloud server. A cooperative middleware apparatus may determine a cloud server suitable for a mobile terminal among a plurality of cloud servers, based on content information of content and virtual terminal information stored in the plurality of cloud servers.

Abstract: Colonic-targeted oral drug dosage forms composed of a drug confined within a crosslinked hydrogel that exhibits pH-dependent swelling and is composed of an ionizable comonomer such as acrylic acid, a nonionizable comonomer such as an acrylamide, and a crosslinking agent that contains an aromatic azobond. Selective drug release in the colon occurs by a combination of pH-dependent swelling of the hydrogel and degradation of the hydrogel by enzymatic cleavage of the azobonds by azoreductases.

Abstract: A jet pulverizing method is described for preparing silicon seed particles from silicon feed particles without contamination. The method comprises accelerating silicon feed particles by fluid jet energy and colliding them with each other within a pulverizing chamber to fracture or split them into small particles which are recovered for use as seed particles. The method is characterized by the technique that silicon particles fluidized within the pulverizing chamber are formed into a dilute-phase fluidized bed with low particle density. Thus, the generation of fine powders may be suppressed and additional sieving to separate larger particles is not required.

Abstract: A device for the dispensing of a biologically active material into the surrounding environment is disclosed which consists of at least one wall enclosing a compartment which contains a swollen stimuli sensitive hydrogel in which the biologically active material is entrained in solution. The hydrogel deswells or shrinks in response to contact by external physical or chemical stimuli releasing the biologically active material into the portion of the compartment previously occupied by the swollen hydrogel. The wall enclosing the compartment is rigid and contains means allowing the passage of the biologically active material from the compartment to the surrounding environment and also for transmitting the external stimuli to the swollen hydrogel in said compartment. The wall may contain orifices or be permeable to the active material and external stimuli depending upon the drug and the stimuli to be used.

Abstract: A system for transdermally delivering a hydrophobic alkanol soluble active agent to the skin at a constant rate utilizing a lower alkanol penetration enhancer. The system comprises an overlying solvent reservoir containing a lower alkanol solvent and a drug compartment containing an active agent in aqueous alkanol. A one-way membrane is sandwiched between and divides the solvent reservoir from the drum compartment. The one-way membrane is permeable to the alkanol solvent and substantially impermeable to back flux of drug and water into the reservoir. An outer membrane permeable to the alkanol solvent and drug is attached to the outer surface of the drug compartment. Adhesive means is contained on the outer surface of this membrane for attaching the delivery system to the skin of a wearer. Alkanol from the reservoir permeates into the drug compartment and drug and alkanol pass through the outer membrane to the skin of the wearer for transdermal absorption.

Abstract: A heterogeneous interpenetrating polymer network is provided for use in the controlled release of drugs. The network is a heterogeneous matrix that is formed from a hydrophilic component such as polyethylene oxide or poly(N,N'-dimethyl acrylamide-co-styrene) and a hydrophobic component such as styrene, an alkyl methacrylate, or polytetramethylene ether glycol. The relative amounts of the two components, or "domains", can be varied, as can the diffusivities and solubilities of the drug combinations to be loaded therein, to control and change as desired the timed release profile of incorporated drug. Prolonged pseudo-zero order release can be obtained where one domain acts as a diffusion barrier layer to the release of drug from the other domain.