Locking system

There are several types of deposition chamber configurations (Fig. 2). The batch-type system is the most commonly used, but the requirement that the system be returned or let-up to ambient pressure on each cycle can pose problems in obtaining a reproducible processing environment. The load-lock system and the in-line system allows the deposition chamber to be kept under vacuum at all times and the substrates introduced and removed through... 

Commercial spectrometers are usually bakeable, can reach ultrahigh-vacuum pressures of better than 10" Torr, and have fast-entry load-lock systems for inserting samples. The reason for the ultrahigh-vacuum design, which increases cost considerably, is that reactive surfaces, e.g., clean metals, contaminate rapidly in poor vacuum (1 atomic layer in 1 s at 10 Torr). If the purpose of the spectrometer is to always look at as-inserted samples, which are already contaminated, or to examine rather unreactive surfaces (e.g., polymers) vacuum conditions can be relaxed considerably. 

At C, change procedures to reflect actual performance, provide checklists, alter worker s perception of the importance and consequences of leaving valves open, and improve the supervision of procedures. Some form of lock system would be of benefit... 

Adjustable spring pressure against locking system. 

Christensen-Mason Jar. (See Figure 4-172 and Table 4-103 [57].) This is a combination tool, offering possibility to jar upwards hydraulically and to bump downward mechanically. The jar is equipped with a special releasing (locking) mechanism, so that the jar cannot be fired upwards until the locking system has been released. It has a 6-in. jarring stroke upwards and 30-in. for downward bumping [57]. 

By using a multichamber system [129], exchange of residual gases between successive depositions will be strongly decreased, and very sharp interfaces can be made. Furthermore, the use of a load-lock system ensures high quality of the background vacuum, and thus low levels of contaminants in the bulk layers. Multichamber reactor systems have been used for the fabrication of solar cells, and considerable improvements in energy conversion efficiency have been achieved [130, 131]. 

Loading waveform, 13 482-483 Load limits, in waste collection, 25 870 Load-lock system, 24 724 Load variable, 20 666 Lobeline, 2 82... 

As mentioned above, in an ENDOR experiment the rf field is swept while the static magnetic field is held at a constant position in the EPR spectrum. For slow sweep rates and narrow EPR lines a device would be desirable which is able to stabilize the ratio of the microwave frequency to the static magnetic field. The applicaiton of a commercially available field/frequency lock system is restricted to a region of 6 mT about the DPPH resonance field33). In metal complexes with strongly anisotropic EPR spectra, however,... 

Nissan s Hypermini concept EV is a two passenger EV (electric vehicle) that can go 60 miles per hour and travel about 75 miles on a single charge. It uses a neodynium magnet synchronous motor, with a maximum output of 20 kW at 15,000 rpm, lithium-ion batteries and an inductive charging system. Rear-wheel 2WD is used with front independent struts and rear independent parallel-link struts. The brakes are ventilated discs with an anti-lock system. 

The most important features of hydrant locks are their strength and the security of their locking systems. The locks must be strong so that they cannot be broken off. Hydrant locks are constructed from stainless or alloyed steel. Stainless steel locks are... 

The transfer of processing materials, or entry of personnel into clean areas, carries with it the risk of reintroduction of microorganisms and particulate matter. The principles of GMP minimizes such risks by stipulating that entry of all substances/personnel into a clean room must occur via air-lock systems (Figure 3.2). Such air-locks, with separate doors opening into the clean room and the outside environment, act as a buffer zone. All materials/process equipment entering the clean area are cleaned, sanitized, (or autoclaved if practicable) outside this area, and then passed directly into the transfer lock, from where it is transferred into the clean room by clean room personnel. 

Politano, Teresa. One-in-a-Million Mom. New Jersey Monthly, vol. 26, June 2001, p. 76. Donna Dees-Thomases, the woman who led the Million Mom March for gun control, is busier than ever. Her daily life is described as she prepares to focus more on local gun issues, such as laws requiring that guns be childproof or personalized with a safety locking system. 

The door is equipped with a hydraulic bolt locking system. 

Bruker Smart Magnet control System (BSMS) including the digital deuterium lock system and the BOSSl shim system... 

In six-membered chelate rings such as those formed by 1,3-propanediamine (tn), at least two conformational energy minima, which correspond to an achiral chair structure (23a) and the chiral skew- or twist-boat forms (25b) and (25c),166-168 occur and both have been observed in crystal structures.169 176 The possible conformational isomerism in tn complexes is therefore even more involved than in en complexes.177 In (OC-6-12)-[CoCl2(tn)2]+ (tratns-[CoCl2(tn)2]+), for example, there are two achiral bis(chair) forms (26a and 26b), two enantiomeric (chair, skew-boat) forms (26c and 26d), one achiral form (26e) and two enantiomeric bis (skew-boat) forms (26f and 26g). Several of these have been isolated in conformationally locked systems.178 180... 

Deutenum - [NUCLEARREACTORS - REACTORTYPES] (Vol 17) -isotope separation of [NUCLEARREACTORS - ISOTOPE SEPARATION] (Vol 17) -lamp for optical spectroscopy [SPECTROSCOPY, OPTICAL] (Vol 22) -lock system for nmr [MAGNETIC SPIN RESONANCE] (Vol 15)... 

Door seals if the door is equipped with a seal that provides tightness both in the vacuum and overpressure ranges, the door locking system must ensure that there is no gap between the door and the door flange at the lower areas of the door. This danger must be reckoned with if double seals are used, e.g. inflatable seals. Con-... 

A door locking system that corresponds to sterile room conditions and that also fulfills all safety requirements should be taken into account. 

Neurotransmitters can be envisioned as keys that unlock specific sites on neurons called receptors. A neurotransmitter opens the receptor s lock, and it is through this key-and-lock system that messages are conveyed throughout the CNS. Most receptors are specifically tuned to accept only one type of neurotransmitter key. Hormones can also act as keys that unlock certain receptor sites. Some neurons have thousands of receptors that are specific to particular neurotransmitters. 

Arizona Portland. Arizona Portland operates a cement plant in Rillito, Arizona, near Tucson, which has been burning tdf since 1986. They have a different kiln configuration from Genstar and they use a different tdf feed system. They feed the tdf into the flash calciner at the back end of their system. Until recently, they had been using an air lock system to feed tdf into their calciner at a rate of 2 tons per hour. However, they had problems with the pneumatic feed system. Pieces of steel wire from the tdf repeatedly plugged up the elbows in the feed path. Because of these problems they decided to install a mechanical feed system instead. 

If whole tires are used, they are usually added manually to the reactor. If the processor is using chipped tires, the chips are stored in a chip silo (see Figure 8-1, Item 1), and are fed from the silo into the reactor using a vibratory feeder or a screw conveyor to achieve a controllable and known feed rate. The feed passes through an air lock system consisting of two valves or a rotary star valve. From the air lock, the feed enters the pyrolysis reactor (Item 2). 

These requirements have stimulated the research for new chemical strategies of coupling, and in particular for linkers that are easily cleaved. These include esters, lisosomotropic peptides that are stable in plasma but cleavable inside the cells by cathepsins [37], and spacers that can be directly cleaved under acidic conditions or by anchimeric assistance such as ds-citraconic acid amides or hydrazones derivatives [38]. Furthermore, pro-drug approaches or trimethyl lock systems have been developed where the carrier is cleaved in two steps, initially by water or enzymes and later by a chemical mechanism [39]. 

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