Very variable

Centrifugal demister or cyclone) devices rely on high velocities to remove liquid particles and substantial pressure drops are required in cyclone design to generate these velocities. Cyclones have a limited range over which they operate efficiently this is a disadvantage if the input stream flowrate is very variable. 

The site was a drained marsh which received no artificial N inputs, although cattle were present on the site until a couple of weeks before the experiment. NjO emissions were measured by chamber techniques as no instrumental techniques were sensitive enough at that stage to permit micrometeorological measurements. Although spatially very variable, the mean emission rate from the site was 4ng NjO-Nm s h The sporadic measurements made impossible the determination of any response to temperature or water status. 

Aluminium fluoride (anhydrous) [7784-18-4] M 84.0, m 250°. Technical material may contain up to 15% alumina, with minor impurities such as aluminium sulfate, cryolite, silica and iron oxide. Reagent grade AIF3 (hydrated) contains only traces of impurities but its water content is very variable (may be up to 40%). It can be dried by calcining at 600-800° in a stream of dry air (some hydrolysis occurs), followed by vacuum distn at low pressure in a graphite system, heated to approximately 925° (condenser at 900°) [Henry and Dreisbach J Am Chem Soc 81 5274 1959]. 

Materials for metal tanks and installations include plain carbon steel, hot-dipped galvanized steel, stainless steel [e.g., steel No. 1.4571 (AISI 316Ti)], copper and its alloys. The corrosion resistance of these materials in water is very variable and can... 

Water is distributed very unevenly and with very variable purity over the surface of the earth (Table 14.6). Desert regions have little rainfall and no permanent surface waters, whereas oceans, containing many dissolved salts, cover vast tracts of the globe they comprise 97% of the available water and cover an area of 3.61 X 10 km (i.e. 70.8% of the surface of the... 

The very variable characters of thia oil are due to dillerences ic dis-tillatioa meibods, as the further the disiillation is carried, tbe more tbe amount of slightly volatile, high gravity conai-iturrifB coming ovei-. 

Where process industries operate very variable steam demand operations, the use of a steam accumulator may provide adequate buffering capacity and minimize steam quality problems. Good operational practices include ... 

Supply of MU water for a medium-pressure (450 psig) WT boiler, from a surface water source with very variable suspended solids and hardness (sugar refinery, South Africa). The process used is a. carbonate removal using hot-lime precipitation softening coupled with silica adsorption by magnesia addition b. clarification in anthracite filters and c. cation ion-exchange for the balance of hardness removal. 

Very variable and rapid load swings, often taking place when the boiler is on manual... 

The only one of these conditions which causes progressive and degenerative disease of muscle is myotonic dystrophy. Inheritance is autosomal dominant, but expression is very variable. The condition also illustrates the phenomenon of... 

Conclusion The hardness results are very variable (CV 17%), while the weight scatters only about 2%, so a request for more tablets is issued ... 

This ROP of hexachlorocyclophosphazene to polydichlorophosphazene is very relevant in phosphazene chemistry as it has been used in almost every laboratory in the world for the preparation of poly(organophosphazenes) starting from the middle of the 1960s up to recent times [38]. H. R. Allcock discovered in 1965 [40-42] that (NPCl2)3 can open its inorganic ring thermally, under strictly controlled experimental conditions (250 °C, vacuum of 10" torr, and reaction time of 8-12 h), to form polydichlorophosphazene in a reasonable yield, but in a rather slow and irreproducible way [38]. Moreover, the final polymer obtained shows a very variable MW and MW distribution, with a strong tendency to produce crosslinked materials [45]. 

In contrast, considering the characteristics of the substituent groups currently used in the chlorine replacements of polydichlorophosphazene, it can be immediately realized that they can be very variable depending on the chemical structure of the nucleophile selected for these reactions. A list of the preferred chemical compounds usually exploited for the phosphazene substitutional processes is reported in Table 4. 

The properties and applications are very variable according to the nature and the ratio of the substituents, the crosslinking reaction and the formulation but one always finds a good fire resistance resulting in a high oxygen index, a ... 

Pectinolytic enzymes secreted by the diploid K. marxianus have been partially purified and characterized [eg 2] but the results obtained were very variable, partially contradictory and paid little attention to the physiological aspects of PG secretion [3]. Commercial use and production of PG from K. marxianus has attracted considerable interest [4]. 

There are surprisingly few microbeam studies of zircon-melt partitioning in natural systems and none in experimental systems. Recently Thomas et al. (2002) have derived zircon-melt partition coefficients from rehomogenised glass inclusions in zircons from an intrusive tonalite, while Hinton et al. (R. Hinton, S. Marshall and R. Macdonald, written comm.) have used an ion-microprobe to measure zircon-melt partition coefficients from a Kenyan peralkaline rhyolite, with an estimated eruption temperature of 700°C (Scaillet and Macdonald 2001). We have used the lanthanide partition coefficients from these two studies to derive best-fit values for and for the large Vlll-co-ordinated site. In total there are 13 individual sets of partition coefficients. All of these yield broadly consistent values of, in the range 0.968-1.018 A, but very variable, in the range 373-1575 GPa. Because Lu is comparable in size to cannot be well... 

Iseler, G. W. et al., Int. Conf. Indium Phosphide Relat. Mater., 1992, 266 Reaction of beryllium, copper, manganese, thorium or zirconium is incandescent when heated with phosphorus [1] and that of cerium, lanthanum, neodymium and praseodymium is violent above 400°C [2], Osmium incandesces in phosphorus vapour, and platinum bums vividly below red-heat [3], Red phosphorus shows very variable vapour pressure between batches (not surprising, it is an indeterminate material). This leads to explosions when preparing indium phosphide by reactions involving fusion with phosphorus in a sealed tube [4],... 

Present in many species of magic mushroom that are eaten raw some toxic mushroom species are visually similar to the psychedelic varieties effects are very variable, depending on the exact species and drug concentration. 

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