Test cycles

Fig. 6.33 Hydrogen storage capacity in the 100 cycles test. Hydrogenation conditions, unless otherwise noted, 120°C/95-100bar (isobaric). In cycles marked by asterisk, insufficient time was allowed to complete...

Institute Shanghai SMS 5 60 coal-fired bottoming cycle test facihty... 

It is not practical to determine the contact resistance in power connectors. The resistance of the connection of a specified length of conductor on each side of the connector is measured and is called the overall resistance or the connection resistance. One industry specification (32) defines the included lengths and requites the stabiUty of the connection resistance to be within 5% of its average value throughout the heat-cycle test. 

Rotor Heat Cycle. As part of the rotor construction, Elliott conducts a heat cycling test of the rotor at the shaft-to-disk... 

Two electrochemical lithium/carbon cells were made for each of the pyrolyzed materials. We used currents of 18.5 mA/g (20-hour rate) for the fust three charge-discharge cycles and 37 mA/g (10-hour rate) for the extended cycling test. 

V313 particleboard exterior according to EN 312-5 and 7, option I [2] (cycle test according to EN 321 [4]). 

El-particleboard- and El-MDF-resin for water-resistant boards (EN 312-5 and 312-7 [2]). For boards according to option 1 (V313-cycle test) MUF-resins can be used for boards according to option 2 (VI00-boiling test) MUPF with approval are necessary. In case, espeeially for the MDF-production, formaldehyde catchers are added. 

European Norm EN 321, Wood fibre panels — cycle tests under humid conditions, 1994. European Norm EN 622-2, Wood fibre panels — Specification requirements for hitrd-board, 1998. 

Under micro-discontinuous chromium coatings, copper undercoats improve corrosion resistance. On non-conductors, especially on plastic substrates, copper is often applied before nickel-chromium plating over the initial electroless copper or nickel deposit in order to improve ductility and adhesion, e.g. as tested by the standard thermal-cycling test methods ... 

However it has to be conceded that after battery life cycle tests at such temperatures polyethylene separators also reach their limits, although this fact does not yet reflect in failure-mode studies [49], even in locations with extreme ambient temperatures. The tendency towards using ever-thinner backwebs cannot be continued, however, without seeking protective measures. Suitable provisions have to be made espc-... 

The battery system has reached more than 1700 cycles in life cycle tests. The calendar life of the /zebra battery has been proven to be close to five years in a continuing life test. In practical operation in cars the ZEBRA battery exceeded 110000 km within a three year period. This excellent result proves the ZEBRA battery to be a reliable system. 

The ineffectiveness of Micro-Cel for controlling exudation was conclusively demonstrated during temp-humidity cycling tests conducted on the Chaparral missile. The temp cycle used was from -4° to 103° for a 24-hour period, with missiles held at extremes for a 4-hour period and brought from one extreme to the other in eight hours. Exudate was observed on eleven of twelve missiles submitted to test (Ref 35)... 

Thermochemical Cycles Testing the Formation of Gaseous (Cycle 1) or Adsorbed (Cycle 2) Carbon Dioxide by the Interaction of Carbon Monoxide with Oxygen Preadsorbed on Gallium-Doped Nickel Oxide ... 

Thermochemical Cycle Testing the Formation of Gaseous Carbon Dioxide at the End of the Adsorption Sequence (CO—O2—CO)"... 

Figure 6. Potential vs. capacity curves obtainedfrom cycling tests of synthetic graphite flakes in EC-PC/LiCIO4 solutions in different discharge rates. Notice that as the discharge rate decreases - the irreversible capacity decreases accordingly.

Crowflight Minerals Inc. The ore deposit consists of Aphebian ultramafic sills intruded into Archean gneisses (Wardrop 2008). Rougher tails were produced from lock cycle testing of bulked drill core samples. 

Effect of degree of fatty acid mixture dispersion on Cu/Co flotation from siliceous Kolwezi open pit ore - laboratory-locked cycle tests... 

Xanthated fatty acid mixture is a new line of collectors, specifically designed for beneficiation of oxide copper ores that contain dolomitic and carbonaceous gangue minerals [19]. This collector was developed after extensive laboratory development testwork. The effectiveness of this collector was compared to a standard xanthate collector in a series of continuous locked cycle tests (Table 19.5). 

Continuous locked cycle test results from mixed lead zinc sulphide oxide ore... 

Collector PL520 was selected as the final collector due to its low-frothing properties. After selection of the collector, a series of final locked cycle tests were conducted using the flowsheet shown in Figure 21.10. The final reagent scheme is shown in Table 21.13. 

The overall results obtained in the locked cycle tests are presented in Table 21.14. 

The effect of different amine collectors has been examined on Niobec ore from Canada through development testwork [5], Table 22.4 shows the results from the laboratory continuous locked-cycle tests conducted using different amine collectors manufactured by Akzo Nobel, USA, Canada - Clariant, Germany. 

The final metallurgical results obtained in continuous locked cycle testing are shown in Table 22.10. 

Locked-cycle test results obtained from the Mrima Hill niobium refractory ore... 

A depressant system developed for beneficiation of Ta/Nb-Zr ores involves oxalic acid-hydro fluoro silicic acid and depressant SHQ. SHQ is a mixture of a low-molecular-weight acrylic acid and condensation product of disulphonic acid (Suspendol PKK, manufactured by Cognis, Germany). After the development of the final reagent scheme, a series of locked-cycle tests were performed using the flowsheet shown in Figure 23.7. 

The results obtained from the continuous locked-cycle tests are shown in Table 23.8. The beneficiation process developed for a Saudi Arabian Ta/Nb-Zr ore is considered as a new technology. 

Figure 23.7 Final flotation flowsheet used in the continuous locked-cycle tests.

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