Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Links stations

A critical part for the functioning of IDC is the Global Communications Infrastructure (GCI). The GCI will support the transmission of raw data from the 337 facilities of the International Monitoring System (IMS) to the IDC in Vienna, and the distribution of data and IDC products to State Signatories, primarily through their national data centres (NDCs). The GCI will be the world s first, global VSAT-based satellite system, linking stations and NDCs in populated and quite remote areas of all continents and island sites. [Pg.669]

These tests generate several Gigabytes of data that are fed into a historical database. Although most of the analysis is performed automatically, human interaction is still needed to compare current and past data. Data are stored on optical CD S s from which the historical data bank are retrieved during field inspections from a mobile unit. Each of these is equipped with a CD-jukebox linked to an analysis station. The jukebox can handle 100 CD s, enough to store all previously recorded data. A dedicated software pre-fetches the historical data and compares it on-line with the newly acquired NDT-data. It is based on fuzzy algorithms applied to signal features. [Pg.1022]

Eliminate sources of fuel Blank unused lines at switching station Provide emergency cooling activated by external fire (e.g., fusible link, plastic tubing)... [Pg.59]

The North American electric power transmission system has been described as the largest, most complex machine ever built by humanity. It is a massive network of generating stations, transmission lines, substations, distribution lines, motors, and other electrical loads all interdependently linked for the conversion, transportation, and control of electrical energy. Approximately 60 percent of all energy utilized in the United States passes through the interconnected electric power system. The major goal of the system is to most efficiently and reliably deliver electric power from generating stations to residential, commercial, and industrial consumers. [Pg.433]

Electronic detection systems may range from simple intmder-detection devices monitored by basic control units to a variety of complex systems monitored by sophisticated computer-operated controls linked to 24-hour manned stations. Intruder-detection devices can be arranged into the following groups ... [Pg.48]

The living microbial, animal, or plant cell can be viewed as a chemical plant of microscopic size. It can extract raw materials from its environment and use them to replicate itself as well as to synthesize myriad valuable products that can be stored in the cell or excreted. This microscopic chemical plant contains its own power station, which operates with admirably high efficiency. It also contains its own sophisticated control system, which maintains appropriate balances of mass and energy finxes through the links of its internal reaction network. [Pg.39]

Nation JR Texas A M University Health Science Center, College Station, TX Heavy metals and cocaine interactions possible link between xenobiotic contamination and the response to a prominently abused psychoactive drug National Institute on Drug Abuse... [Pg.365]

The NREL is developing a web-based information repository as recommended. A concept for an HFS information repository is shown in Figure 14.5, with potential outputs noted in brackets. Items included under "permitting process" and "retail hydrogen station" will be linked to specific sections of applicable codes and standards in the database shown at the bottom of Figure 14.5. [Pg.486]

The EC (pS cm-1) and the TDS (mg L ) both reflect the water ionic content, i.e. the dissolved load also called water salinity. The EC, easily obtained compared to chemical data, is thus widely documented in the CHEBRO database (n = 2,860 versus 999 complete major element analyses). These two parameters (EC and TDS) are linked by a linear relation TDS (mg L ) = b EC (pS cm-1), with a mean b factor 0.54 < b < 0.96 according to water types and range of salinity [21, 22], The linear relations between TDS and EC were calculated for each monitoring station, b factor ranging from 0.713 (Arga) and 0.86 (Aragon), whereas the Ebro River stations present less variability (0.774—0.798) with R2 always better than 0.72, all the relations are summarised in Table 1. These relations are very similar to that defined for the whole Ebro basin with b = 0.81 [23]. [Pg.105]

Fig. 4 Relation between EC (p.S cm ) and river discharge (W, m3 s ) with the power relation (EC = a x Wb) linking both parameters. Best and worth relation are illustrated for the Ebro (Oil, 027) stations and the tributaries (089, 087)... Fig. 4 Relation between EC (p.S cm ) and river discharge (W, m3 s ) with the power relation (EC = a x Wb) linking both parameters. Best and worth relation are illustrated for the Ebro (Oil, 027) stations and the tributaries (089, 087)...
The resulting early transit road network focuses on connecting early-user centres within the HyWays countries, but also on international links. Furthermore, the motorways around early-user centres with high population densities should be equipped with hydrogen fuelling stations to facilitate daily commuting in these regions. [Pg.437]

Rotaxanes are mechanically-linked molecules consisting of a molecular strand with a cyclic molecule linked around it. The molecular strand is terminated with bulky end groups at both ends. Rotaxanes find use in the fact that there are a number of positions (stations) along the molecular strand to which the cyclic molecule can temporarily attach. [Pg.236]

Wireless data communications devices are used to enable transmission of data between computer systems and/or between a SCADA server and its sensing devices, without individual components being physically linked together via wires or cables. In industrial chemical processing systems, these devices are often used to link remote monitoring stations (i.e., SCADA components) or portable computers (i.e., laptops) to computer networks without using physical wiring connections. [Pg.205]

Each of the independent controllers is linked to a human-machine interface (HMI) network. Dedicated HMI operator stations are assigned to each area, with an appropriate number of redundant stations providing backup in case of maintenance or breakdown. A development station permits tooling changes between campaigns to be carried out at the same time as systemiza-tion is carried out on the individual areas. A redundant set of historical data collection stations ensures that all of the data are collected and stored for both regulatory... [Pg.115]

A second microphone would allow communication with personnel back at the base station, more than two miles away. This link would keep observers informed of progress or problems, with frequent updates on dosage from the chemists monitoring the two spectrophotometers in the booth. [Pg.143]

Another aspect of matching output to user needs involves presentation of results in a statistical framework—namely, as frequency distributions of concentrations. The output of deterministic models is not directly suited to this task, because it provides a single sample point for each run. Analytic linkages can be made between observed frequency distributions and computed model results. The model output for a particular set of meteorologic conditions can be on the frequency distribution of each station for which observations are available in sufficient sample size. If the model is validated for several different points on the frequency distribution based on today s estimated emission, it can be used to fit a distribution for cases of forecast emission. The fit can be made by relating characteristics of the distribution with a specific set of model predictions. For example, the distribution could be assumed to be log-normal, with a mean and standard deviation each determined by its own function of output concentrations computed for a standardized set of meteorologic conditions. This, in turn, can be linked to some effect on people or property that is defined in terms of the predicted concentration statistics. The diagram below illustrates this process ... [Pg.698]

The distributed control system (DCS) hardware areas are often referred to as "process computer rooms." I/O Rooms contain the incoming and outgoing wiring, cables and data highway links, and often small transformers and other related electrical equipment. Often, additional space is needed for a master process engineering computer terminal/work station for process control system changes and for critical safety instrumented systems (SIS) for interlocks and emergency shutdowns. [Pg.305]

There is evidence that signals starting from G-protein-coupled receptors run into the Ras switch station (Van Biesen et al., 1995). Pv-subunits of G-proteins are under discussion as the link between G-protein-coupled signal transduction and the Ras pathway these subunits could influence the activity of Ras protein and the subsequent MAP kinase pathway by a presently unknown mechanism. [Pg.344]


See other pages where Links stations is mentioned: [Pg.65]    [Pg.65]    [Pg.96]    [Pg.16]    [Pg.153]    [Pg.305]    [Pg.473]    [Pg.361]    [Pg.428]    [Pg.668]    [Pg.649]    [Pg.244]    [Pg.4]    [Pg.87]    [Pg.408]    [Pg.204]    [Pg.19]    [Pg.69]    [Pg.221]    [Pg.35]    [Pg.239]    [Pg.394]    [Pg.124]    [Pg.17]    [Pg.205]    [Pg.138]    [Pg.423]    [Pg.137]    [Pg.94]    [Pg.337]    [Pg.305]    [Pg.409]    [Pg.375]    [Pg.13]   


SEARCH



© 2024 chempedia.info