Port system

John R. Crison, Ph.D. PORT Systems LLC, Ann Arbor, Michigan... 

Scheme 2.33 Urea library generation and purification using polymer-sup-ported systems.

Figure 9.13 Examples of mitochondrial transport systems for anions. 0 The anb port system transfers malate into but oxo-glutarate out of the mitochondrion. The symport system transfers both pyruvate and protons into the mitochondrion across the inner membrane. Both transport processes are electroneutral.

Crison, J.R. Siersma, P.R. Taylor, M.D. Amidon, G.L. 64. Programmable oral release technology, port systems a... 

The usual injection port system adapted for Py-GC Is, however, the split/splitless one. With this, the sample can be either transferred from the pyrolyser into the injection port of the GC and then to the analytical column, which is connected at the bottom of the injection port, or a piece of capillary fused silica is passed from the pyrolyser through the injection port and it is connected to the analytical column. The split/splitless pneumatic system is shown schematically in Figure 5.2.1. In this pneumatic system the connection (10) can be closed and connection (9) open, and then the GC works in split mode (purge on), allowing only a small portion of the sample to reach the beginning of the analytical column. The rest of the sample is swept out of the system. When connection... 

Halothane in blood and tissues can be determined by direct injection of such material into a gas chromatograph with a suitable injection port system. The injection port must provide for more or less frequent cleanout. 

Various pulsatile release methods for oral drug delivery include the Port system (a semipermeable capsule containing an osmotic charge and an insolnble ping) and Chronset system (an osmoticaUy active compartment in a semipermeable cap). 

Analyse and support the process towards standardisation, for re-porting system, and for agreement on best practice ... 

The flow rate and the pressure drop per unit length of the chromatographic column are much lower for the stationary port compared to the moving port system. Also, the moving port system is much less capital intensive. The moving port technique, however, is calculated to require only one-third of the column volume and ion exchange volume and two-thirds of the desorbent volume compared to the stationary port technique. 

FIGURE 7.11 Reflection coefficient of the two-port system for diverse FDTD implementations... 

Four main units are used in the IMCS, which are the motor control unit (MCU), the feeder control unit (FCU), the circuit breaker control unit (CBCU) and the central control unit (CCU). A MCU is a microprocessor (micro-computer) based module which has integrated control, monitoring, protection functions, and a communication interface for the motor starter. An FCU is very similar to a MCU and interfaces communication for the plain feeder contactor or circuit breaker. A CBCU is also similar to a MCU but is used for incomers, interconnectors and busbar section circuit breakers. A CCU provides the facility to communicate simultaneously with MCUs, FCUs, CBCU, a distributed control system (DCS), system control and data acquisition (SCADA) and other digital information systems. Other discrete devices such as special protective relays can also be addressed by the CCU provided the software and porting systems are compatible. 

A 500 ml polypropylene plastic bag with a port system comprising a rubber stopper. This bag consists of an inner bag wrapped with an overpouch, the composition of which depends on the content of the inner bag. For an oxidation-sensitive solution (fat emulsions and certain amino acids), the overpouch contains a high-barrier layer, but will still consist primarily of polypropylene. 

The selected packaging, the Excel bag, is shown in Figure 7.1. The Excel material is a polypropylene (PP)-based multilayer film, including a polyester ether outer layer and a styrene-ethylene-butylene-styrene (SEBS) tie layer. A natural rubber (NR) stopper is present at the port system of the Excel bag. 

Alencar, M.H. Cavalcante, C.A.V. Almeida, A.T. E)e Neto, C.E.S. (2009) Priorities Assignment forActions in aTrans-port System Based on a Multicriteria Decision Model. ESREL 09 Conference, Prague, 7-10 Sept 2009. 

FIGURE 2 A network of estuarine and near-shore EOFS has sprawled over the U.S. coast. Several of these systems are part of the PORTS system, which is coordinated by NOAA (black squares if already installed, hollow squares if planned). CORIE, LEO-15, and REI NAS (black triangles) are, however, examples of EOFS independently maintained... 

The problem of introducing solutes into melts may not always be inconsiderable. A number of entry-port systems have been described/ but the most elegant solution to the problem for fundamental studies may be anodic dissolution. Otherwise, the availability or ease of preparation of adequately anhydrous material can present serious difficulties. ... 

Disposable plastic (mostly polypropylene, PP) syringes are used as containers for the injection of fluids. Prior to administration they are connected to the needle, catheter or port system which is used to access the injectiOTi site. 

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