Unload

During loading and unloading of crude oil tankers, the specific gravity of the crude is measured to confirm it meets the specifications for the case where payment is made on a barrel basis, or when the volume is converted into weight if the transaction is based on a price per ton (Hayward et al., 1980). 

At the two-multiple loading test, the samples were preliminarily exposed to the stretch exertions effect until the level G, which is O.S B (do not influence on the residual resistance) and the AE total calculation (Nl) was registered. After the test, samples were unloaded entirely, then loaded repeatedly until the initial level 6, and the AE total calculation (N2) was registered again. The ratio K=Nl / N2 was taken as a criteria parameter of the carbon plastic resistance (table 1). If the value of K is considerably exceeding 1, then the samples resistance is quite high. If the value of K is close to or less than 1 - it means that the samples have low resistance. 

The calibration graph for the probe using a strength machine, has been shown in Fig. 7 It can be observed that the dependence of indications of the device of Wirotest type on the loading is linear within the proportionality limit scope. After unloading the indications do not return to zero, but show own stress caused in effect of plastic deformation of the tested sample... 

All blocks are loaded from the same side, moved through the X-ray cabinet and unloaded on the other side. There is no link between input and output, so there is no way a previously inspected block can by accident be loaded a second time. 

In order to minimize the radiation dose, the inspection time is limited to 30 seconds of exposure (programmable) after which the X-ray on/off shutter will shutter off the X-rays and the block must be unloaded. A timer will keep the operator informed of the time that has elapsed. 

Figure Bl.19.35. Experimental nanoindentation eurves obtained with the AFM showing the loading and unloading behaviour of (a) an elastomer and highly oriented pyrolytie graphite and (b) a gold foil. (Taken from [183]. figure 4.)...

Figure C2.1.17. Stress-strain curve measured from plane-strain compression of bisphenol-A polycarbonate at 25 ° C. The sample was loaded to a maximum strain and then rapidly unloaded. After unloading, most of the defonnation remains.

The resist must have suitable radiation sensitivity. Today s exposure tools are so costiy that tool throughput is a key measure of performance. The overall time to expose a resist film is the sum of the times to load and position the substrate in the exposure tool, to align the substrate and the mask, to irradiate the film, and to unload the complete part. In the optimum case the resist exhibits sufficient radiation sensitivity so that the fraction of the overall cycle apportioned to irradiate the film does not limit the number of substrates exposed in a given period of time. 

After the allotted pressing/heating time, the pressure is released and the press moves to the open position. By this time, the loader is again ready and as each veneer assembly is moved into its respective opening, the pressed panels are pushed out into the unloader on the opposite side of the press. As the press begins the next cycle, the unloader moves to deposit the pressload of panels into a stack. 

The mats are moved along the line to the press loader. When the loader is filled and the press opens to remove the load of freshly pressed boards, the loader pushes the new boards into the unloader and deposits the load of mats on the press platens. The press closes as quickly as possible to the desired panel thickness. More pressure, as much as 4.8—6.9 MPa (700—1000 psi) is required to press high density dry-process hardboard, because the dry fiber exhibits much more resistance to compression and densification than wet fiber. Press temperatures are also higher, in the range of 220—246°C. No screens are used in the dry-process, but the moisture in the mats requires a breathe cycle during pressing to avoid blowing the boards apart at the end of the cycle. Because no screens are used, the products are called smooth-two-sides (S-2-S), in contrast to the wet-process boards, which have a screen pattern embossed into the back side and are known as smooth-one-side (S-l-S). 

C depending on the reference consulted). Fires may be controlled with carbon dioxide or dry chemical extinguishers. Recommended methods of handlings loadings unloadings and storage can be obtained from Material Safety Data Sheets and inquiries directed to suppHers of acetone. 

A fan blade is continuously vibrating millions of cycles up and down ia operatioa over a short period of time. Each time a blade tip moves past an obstmction it is loaded and then unloaded. If forced by virtue of tip speed and number of blades to vibrate at its natural frequency, the ampHtude is greatly iacreased and internal stresses result. It is very important when selecting or rating a fan to avoid operation near the natural frequency. The most common method of checking for a resonance problem is by usiag the relatioa ... 

An important aspect of the mechanical properties of fibers concerns their response to time dependent deformations. Fibers are frequently subjected to conditions of loading and unloading at various frequencies and strains, and it is important to know their response to these dynamic conditions. In this connection the fatigue properties of textile fibers are of particular importance, and have been studied extensively in cycHc tension (23). The results have been interpreted in terms of molecular processes. The mechanical and other properties of fibers have been reviewed extensively (20,24—27). 

Fig. 5. Equipment foi surface treating plastic components. Parts ate loaded into one of the two lower chambers which is then evacuated to remove most of the air. This chamber is then flooded with a dilute mixture of fluorine and nitrogen which is made and stored in the upper chamber. After the treatment is completed, the fluorine mixture is pumped back up to the upper chamber for storage and the lower chamber repeatedly flooded with air and evacuated to remove any traces of fluorine gas. Two treatment chambers are cycled between the loading/unloading operation and the treatment step to increase equipment output. The fluorine—nitrogen blend may be used several times before by-products from the treatment process begin to interfere. AH waste...

Medium-sized loads are often processed ia a beU furnace, as shown ia Figure 2. The operation of this furnace is opposite to that of an elevator furnace the work load is placed on a stationary hearth and the furnace is lowered over the hearth. BeU furnaces are often arranged with two or more bases (hearths) which permit more efficient use of the furnace because one base can be unloaded/loaded as the furnace carries out a heating cycle on another base. 

Handling Temperatures. Optimum temperature for pumping is in 37—48°C range. Piping should be stainless steel, aluminum, or galvanized iron. Valves and pumps should be bronze, cast-iron with bronze trim, or stainless steel. A pump of 3.15-L/s (50-gal/min) capacity unloads a tank car of warm glycerol in ca 4 h. 

Assume pressure, needed to take the elastic—plastic boundary to radius r corresponds to point B (see Fig. 3). Then provided the cylinder unloads elasticady when the internal pressure is removed, ie, unloading path BE is paradel to OA, the residual shear stress distribution is as fodows. 

The effect of subjecting a thick-waded cylinder to a pressure greater than the yield pressure and then releasing the pressure is to put the material adjacent to the bore of the cylinder in compression while the outer layers remain in tension. On subsequent repressurization the cylinder wid, to a first approximation, retrace the unloading path BE (see Eig. 3) so that the cylinder withstands elasticady a pressure equal to that appHed originally. 

Chemicals Chemical Manufacturers Association 2501 M Street, NW Washington, D.C. 20037 Manual of Standard and Recommended Practice ios. chemicals, containers, tank car unloading, and related procedures. 

The largest pipeline transport of gas, by far, is the movement of methane (natural gas). Natural gas can be Hquefted, but it is not pipelined in Hquid form because of cost and safety considerations. For overseas transport, it is shipped as Hquefted natural gas (LNG) in insulated tankers, unloaded at special unloading faciHties, vaporized, and then transported over land in pipelines as a gas. 

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