Connectivity standards

Valve outlet connection standardized by the Compressed Gas Association (CGA) (see ref. S). Corrosion of the manual control valve is indicated by sticking on opening and closing, in which case the valve is taken apart and cleaned. 

Connections Standards Commission of the CGA (This was first known as the Gas Cylinder Valve Thread Commission of the CGA. Later it became the Valve Standards Com. of the CGA, and in 1971 it received its current name.)... 

Consortium (CIC), that developed a set of seamless— plug and play —point-of-care communication standards. Adherence to these connectivity standards ensures that POCT devices meet critical user requirements, such as bidirectionality, device coimection commonality, commercial software intraoperabihty, security, and QC and/or regulatory compliance. The design of the standards was based on (i) the use of a proven architecture and notation, (2) the use of existing standards and architectural patterns wherever possible, (3) a focus on services that would enable software intraop-erabihty and add value to overall functionality, and (4) a reduction in the complexity of device communications. 

The CIC connectivity standards are represented simply as the two interfaces between the POCT devices and information systems (Figure 12-11). The device interface passes patient results and QC information between the POCT instrument and devices, such as docking stations, concentrators, terminal servers, and point-of-care data managers. The latter have to be linked to a variety of information systems via the observation reporting interface or electronic data interface, for transmission of ordering information and patient results. 

The connectivity standard was approved by the National Committee for Clinical Laboratory Standards (NCCLS) in 2001 as the POCT 1-A standard. Essentially, if a POCT device incorporates this standard, it should easily be able to communicate with laboratory and hospital information management systems, allowing exchange of data and infor-... 

ANSI Z49.1,10.6.5 29CFR1910.253(e)(5)(iii) 4.5.39 Hose connections shall comply with the CGA Pamphlet E-1, Regulator Connection Standards. 

Using an all-glass condenser and connections (standard-taper conical-joint connections preferred) the phosphorus (V) sulfobromide is distilled at about 25 mm. pressure, and the crude product boiling between 120 to 130° is collected. The yield of crude product based on red phosphorus used is 80 to 85 per cent. 

Marconi had a dream of a world connected by wireless devices, and as of 2011 that dream is coming true. The IEEE 802 wireless connectivity standards as of 2009 include a personal area network (Bluetooth) that will connect all the devices in a house, car, or office. It has an expanded wireless LAN standard that will support high-speed wireless access of home and office computers into an access point. Both the wireless home network and the wireless LAN can be tied into a high-speed wireless regional network, replacing the current fiber-optic networks. There will be several high-speed cell phone networks that can also tie into the regional wireless system, and when this is added to the current satellite-based wide area networks, the result could be the fully connected wireless world Marconi envisioned. 

CGA E-4, Standard for Gas Regulators, covers both cylinder inlet connections, which must conform with ANSI/CGA V-1, and pipeline regulator inlet connections, which must comply with the requirements of CGA E-3, Pipeline Regulator Inlet Connection Standards [9, 1, 10]. 

As with cylinder valve connection philosophy, the intent of standardizing transfer connections is to minimize the proliferation of connection types for the same application and to avoid potentially hazardous cross-connections. Standard transfer connections for the applications described above consist of a fixed-end coimec-tor at the termination point, a hose nut, a head-piece, and, in the case of cryogenic liquids, a gasket. 

CGA E-3, Pipeline Regulator Inlet Connection Standards, ed.. Compressed Gas Association, Inc.,... 

E-2 Pipeline Regulator Inlet Connection Standards. Describes the inlet connections to be used on removable pipeline regulators used in welding, cutting, and related process industries and where the pipeline pressure does not exceed 200 psig (2 pages). 

A standard probe (type MWB or SWB) is fixed to the probe holder and is mechanically connected to a further piezoelectric receiver. A noise generator, which is coupled to any point of the test object, provides a low frequency noise signal which is picked up by the piezoelectric receiver. The intensity of the signal allows the evaluation of the coupling quality. 

The ethemet connection is combined with the power supply to the PSP-4 and the connected scanner into a single standard cable, that can be used for distances up to 100 m. By using special cables, the distance between the PSP-4 and the eontrol unit can be extended to practieally any distance. 

The Master Module (Figure 2, a) controls both the communications in the local network and the communieation between the network and the base station (a Scanner Master Controller or a FORCE Institute PSP-3 or PSP-4 ultrasonic acquisition unit). The communication between the base station and computer (PC with Windows 95 or Unix-workstation) containing the scanner control software runs on a standard ethemet connection. 

For produetion eontrol of small diameter nozzle welds a magnetic wheel scarmer has been build (Figure 4). One standard motor module drives the magnetic wheel and one standard motor module drives the Y-module slide. The two motors are connected to the Master Module. The scanner is controlled from a FORCE Institute PSP-3 ultrasonic acquisition unit with build-in scarmer controller. 

The standard states of Ag and of Ag (aq) have the conventional definitions, but there is an ambiguity in the definition of the standard state of e. Suppose that a reference electrode R is positioned above a solution of AgN03, which in turn is in contact with an Ag electrode. The Ag electrode and R are connected by a wire. Per Faraday, the processes are... 

The task is now to take one of the numberings as the standard one and to derive a unique code from it, which is called canonicalization. This can be accomplished by numbering the atoms of a molecule so that it is represented later by only one connection table or bond matrix. Such a unique and reproducible numbering or labeling of the atoms is obtained by a set of rules. 

Representation of such a system by a connection tabic having bonds between the iron atom and the five carbon atoms of either one of the two cyclopentadienyl rings is totally inadequate. A few other examples of structures that can no longer be adequately described by a standard connection table are given in the Section 2.G.2. 

The most important feature of editing software is the option to save the structure in standard file formats which contain information about the structure (e,g., Mol-filc. PDB-filc). Most of these file formats arc ASCII text files (which can be viewed in simple text editors) and cover international standardized and normalized specifications of the molecule, such as atom and bond types or connectivities (CT) (see Section 2,4). Thus, with these files, the structure can be exchanged between different programs. Furthermore, they can seiwe as input files to other chemical software, e.g, to calculate 3D structures or molecular properties. 

There are a number of different ways that the molecular graph can be conununicated between the computer and the end-user. One common representation is the connection table, of which there are various flavours, but most provide information about the atoms present in the molecule and their connectivity. The most basic connection tables simply indicate the atomic number of each atom and which atoms form each bond others may include information about the atom hybridisation state and the bond order. Hydrogens may be included or they may be imphed. In addition, information about the atomic coordinates (for the standard two-dimensional chemical drawing or for the three-dimensional conformation) can be included. The connection table for acetic acid in one of the most popular formats, the Molecular Design mol format [Dalby et al. 1992], is shown in Figure 12.3. 

As with the molecular connectivity indices, higher-order shape indices have also been defined. The kappa indices themselves do not include any information about the identity of the atoms. This is the role of the kappa-alpha indices. Tlie alpha value for each atom is a measure of its size relative to some standard (chosen to be the sp -hybridised carbon) ... 

Several forms of apparatus employing electrical heati iig wi 11 be described. A simple form may be readily constructed from a domestic electric iron of 400-500 watts rating. The handle is removed, and two holes of 8 mm. diameter are drilled through the base (ca. 11 mm. thick) so that they meet in the centre of the block. One hole is for a 360° thermometer (small bulb) the other hole is spare and can be used for comparison with a standard thermometer. The heater is mounted on a sheet of thick asbestos board which is fixed to an appropriate wooden base. The wires from the heating unit are connected to two insulated terminals fitted on the board (Fig. 11, 11, 1). The rate of heating is controlled by either of the following methods ... 

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