External impact

Investigate ways to reduce the potential tor external impacts to damage process piping while the alkylation unit is operating... 

Dining interaction at ambient temperature in a bomb to produce poly (carbon monofluoride), admission of fluorine beyond a pressure of 13.6 bar must be extremely slow and carefully controlled to avoid a violently exothermic explosion [1], Previously it had been shown that explosive interaction of carbon and fluorine was due to the formation and decomposition of the graphite intercalation compound, poly (carbon monofluoride) [2], Presence of mercury compounds prevents explosion during interaction of charcoal and fluorine [3], Reaction of surplus fluorine with graphite or carbon pellets was formerly used as a disposal method, but is no longer recommended. Violent reactions observed when an exhausted trap was opened usually involved external impact on the metal trap, prodding the trap contents to empty the trap, or possibly ingress of moist air... 

Process Facilities 15 Area electrical classification 16 Accessibility for mechanical integrity (sampling, maintenance, repairs) 17 Protection of piping and vessels from vehicles and forklifts 18 Protection of small-bore lines, fittings from external impact, personnel 19 Routing of process piping, critical controls cable trays, critical utilities 20 Vent, drain, and relief valve discharge locations... 

Line rupture HF release in area possible injurie s/fatal it ie s. None 2 No Action Unlikely event piping protected against external impact. 

Third-party intervention (external impact by back- ltr2 to nr4 1 x 10"2... 

Long Rupture A section of pipe is removed leading to two sources of gas. Each section being vented in an opening whose cross sectional areas are equal to the cross sectional area of the pipe (e g., pipeline external impact and a section is removed). 

The above-mentioned external impact can reinforce the present-day tendencies of processes in the river mouths areas. Therefore expected changes of structure and regime of the river mouths of the Black Sea and the Sea of Azov region may be summarized as follows ... 

Depending on the type of external impact the processes in a foam could be accelerated (for example, creating pressure drop in the foam liquid phase leads to a drainage rate increase) or new processes can be initiated (for example, rupture of films that are stable if no pressure is applied). 

At the same time the potential of NS, FSV and RC units was determined by potential of each of similar objects because even in case of neighboring NSs a simultaneous release of radioactivity (and, what is more, of fission products) from the primary circuit imder external impacts would be unlikely owing to several SNF safety barriers at each NS. Moreover, NS and MV waterborne storage locations are spread over different piers and bases. Magnitudes of radiation potentials of NS, CMB and RC... 

SNF in storage facilities has less number of safety barriers as compared to SNF in NS reactors. In case of external impacts to one storage facility the neighboring ones will be also involved into the emergency situation. 

There is need to examine hypothetical accidents involving SRU-storing containers due to different-type external impacts (fire, aircraft fall, flood, and so forth) and analyze their potential implications ... 

To date the operating nuclear facilities are adequately protected against different-type external impacts. However it is obvious that, to withstand both external and internal threats, their safety and secmity levels could be increased infinitely. 

Obviously, the system cannot escape spontaneously the local stable stationary state unless it suffers from an external impact such as, for exam pie, concentrated input (or output) of some power larger than (Fig ure 3.6). In addition, while the heat motion inside the system may have the same result, the condition RTv, where v is the frequency of a process capable of pushing the system from the stable stationary state, must be met for preventing such an event. 

Odors, vibrations, noises, and other sensory impacts should not be noticeable to the public while the Dynasafe static kiln is in operation. The detonation takes place in a thick, double-walled chamber inside a containment structure, and the external impacts, if any, should be minimal. 

Furthermore, the position and the width of PEG can be tuned over a wide spectral range, the tuning being provided by varying the crystal lattice parameters and dielectric constants of materials composing PCs. In fact, the possibility to tune the PEG stmcture in real time is a challenging task [3]. It can be achieved by utilisation of substances with the ability to change their refractive index under external impact. 

Non-accident-initiated events differ in that the event is not associated with an external impact during transport. Typical non-accident-initiated events that may be reviewed as part of a transportation risk analysis may not be mode-specific, and could include ... 

Accident rate For most modes of transport the accident rate is reported in accidents per mile of transit (i.e., truck, rail, marine, air). For a pipeline, the accident rate is dependent on the size, material of construction, and the location of the pipeline (above or below ground, subsea), as well as other factors such as maintenance and external impacts (e.g., digging). 

Release probability Data can be developed specific to the route conditions (e.g., road/rail conditions, speed) and the type of accident (e.g., collision, derailment, external impact type, ship grounding) that can be used to develop a range of probabilities, and the size, of a release. 

The pottant Is the soft, elastomeric, vibration-damping material that Immediately surrounds both sides of fragile solar cell wafers and their electrical contacts and Interconnects. It protects the cells from stresses due to thermal expansion differences and external Impact. It Isolates them electrically and helps protect their metallic contacts and Interconnects from corrosion. 

Examples of external impact on the system are rain, temperature, erosion, etc. The external impact(s) propagates through the system via the internal processes, which has been defined in the off diagonal elements in the interaction matrix. The consequence of a certain external impact or event are clearly described and demonstrated in the interaction matrix. Another type of external impact is unexpected events, which is not a part of the normal conditions. 

External impacts are those, which are associated with the normal conditions as defined by the boimdary conditions, but also ime3q>ected featmes, events... 

Finally the diagonal element Localization,which induces the boundary conditions, the normal external impact on the pavement construction such as mechanical wear, rain and temperature, etc., is added to the matrix. This gives a total of ten diagonal elements, which are described briefly below. The numbers between brackets define the position in the matrix in Fig. 3 row, column. ... 

The external impact on the pavement structure due to settlement or heaving in the subgrade/embankment depends on the locaUty of the road. Settlements in the subgrade/embankment may give rise to fractures in the imboimd or bound... 

Despite its simplicity, the interaction matrix captures the central interactions and relations. The matrix clearly illustrates how external impact and events propagate through the system via internal processes defined in the interaction boxes. The exposure to water and atmosphere govern the development of the aqueous chemistry in the imboimd layers. The effect of the three significant ways for water, and two different ways for gas, to enter the unbound layers were demonstrated and the following conclusion is made. 

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