Unpack

German vinyl ether plants were described in detail at the end of World War II and variations of these processes are stiU in use. Vinylation of alcohols from methyl to butyl was carried out under pressure typically 2—2.3 MPa (20—22 atm) and 160—165°C for methyl, and 0.4—0.5 MPa (4—5 atm) and 150—155°C for isobutyl. An unpacked tower, operating continuously, produced about 300 t/month, with yields of 90—95% (247). 

In the case of a packed column, the terms on the right-hand side should each be divided by the voidage, ie, the volume fraction not occupied by the soHd packing (71). In unpacked columns at low values of the sHp velocity approximates the terminal velocity of an isolated drop, but the sHp velocity decreases with holdup and may also be affected by column internals such as agitators, baffle plates, etc. The sHp velocity can generally be represented by (73) ... 

Health and Safety Factors and Regulations. Iodine is much safer to handle at ordinary temperatures than the other halogens because iodine is a soHd and its vapor pressure is only 1 kPa (7.5 mm Hg) at 25°C, compared to 28.7 kPa (215 mm Hg) for bromine and 700 kPa (6.91 atm) for chlorine. When handling properly packed containers, usual work clothes are sufficient. In the handling of soHd, unpacked iodine, mbber gloves, mbber apron, and safety goggles are recommended. Respirators or masks are also recommended. 

Seeing the success of the UNAMAP BBS, EPA s Office of Air Quality Planning and Standards started a BBS for information on regulatory models in June 1989. This has expanded to a BBS called TTN, Technology Transfer Network. This BBS, in Durham, NC, is reached on (919) 541-5742 and the system operator on (919) 541-5384. A part of this BBS called SCRAM, Support Center for Regulatory Air Models, contains model FORTRAN codes, model executable codes for use on personal computers, meteorological data, and in some cases model user s guides. Much of the information is downloaded in "packed" form, and software to unpack the files must also be downloaded from the bulletin board. 

Group 2 Nitrate/metal/sulphur compositions Compositions with >65% chlorate Black powder Nitrate/boron compositions Burn violently Large firework shells Fuse unprotected signal flares Non-pressed report bullets (bird scarers) Report cartridges (unpacked) Black matches (uncovered) Accelerating single-item explosions... 

How do particles interact when they are repeatedly and forcefully packed and unpacked in electrical fields ... 

There are three, somewhat similar, concerns about scaling in parallel. The first concern applies mainly to viscous fluids in unpacked tubes. The second applies mainly to packed tubes. 

The purchase price of some instruments may include set-up and check-out by a manufacturer s representative. In such cases, the laboratory operator should only check for physical condition of a shipment and call the representative about its arrival. Other equipment will generally be set up at its permanent location as soon as it is unpacked and checked. Supplies will be taken to their designated storage areas. The accompanying warranty cards should be filled out and mailed as soon as possible. 

There was also to be room for a large table where incoming samples for analysis could be unpacked, sorted, and recorded. A suitable size was judged to be 4x8 feet. In addition, there should be room for a small desk at the end of the center table. 

Coloured smoke devices Sealed table bombs White smoke devices unpacked (see Group 5 composition)... 

Samples must be packed/unpacked starting with control samples to the samples applied with the test compounds in order from the lowest to the highest concentration. 

When I m steady I haul my bags upstairs and start unpacking. It was winter at home, and I ve brought too many sweaters even for an English summer. I unlock the tenant-proof cupboard, find our own clean sheets, and make up the bed. My jet-lagged flesh aches to lie down, and I mustn t I m only in England for a week, and there s a lot to do. 

I have a long, hot bath, and unpack my small bag from our little trip. Not many clean clothes left, but enough for today jeans and a sweater. I tidy up, put some washing on. It s three by the time I m drinking coffee and eating toast, and I think I m fully awake, but the phone ringing makes me jump almost out of my skin. I pick up the receiver. Perhaps it s. .. Hello ... 

These increases in efficiency pose a threat to the workers in the industry. As a result, they may strike, and the final settlement may result in a nullification of many economic benefits. This happened when the railroads converted from steam locomotives to diesels. At that time the union forced the management to keep a fireman on every train whether he was needed or not. Similarly, the settlement of a recent East Coast dock strike provided a setback to the use of containerized units. It stated that all containerized units that entered New York ports could be unpacked and repacked at the union s request and the shipper s expense, if the final destination was less than 50 miles from the dock, or if the container had more than one product within it.8... 

I. N. Vozjenin, G. A. Blinov, and L. A. Koledov, Microelectronic Devices with Unpacked Integral Circuits, Radio i Svjaz, Moscow, 1985. 

After the quench is complete, the mixture is diluted with 2 L of ether and washed in a separatory funnel with 1.25 L of aqueous 10% hydrochloric acid. The aqueous layer is reextracted with a 2-L portion of ether. The combined ethereal layers are washed with 1.25 L of saturated brine solution and dried over anhydrous magnesium sulfate. After filtration and removal of solvent using a rotary evaporator there remains 26 g of crude product as a reddish-brown oil. Distillation of this material under reduced pressure through an unpacked, 2-Inch distillation apparatus affords 17.3 g (81%) of ethyl 1-naphthylacetate as a yellow liquid, (bp 134-138°C, 0.2 mm) (Notes 17,18). 

Schaffer DV, Fidelman NA, Dan N, Lauffenburger DA (2000) Vector unpacking as a potential barrier for receptor-mediated polyplex gene delivery. Biotechnol Bioeng 67 598-606... 

Graphitization is accomplished by passing an electrical current through cither bed. Considerable resistive heating occurs where temperatures exceeding 3000 °C are possible. Normal process parameters utilize heating rates between 30 to 70°C per hour to 2500°C. Total time at temperature depends on the size of the artifact. Several more days are needed to cool the furnace before unpacking. 

Each irreducible representation of a group consists of a set of square matrices of order lt. The set of matrix elements with the same index, grouped together, one from each matrix in the set, constitutes a vector in -dimensional space. The great orthogonality theorem (16) states that all these vectors are mutually orthogonal and that each of them is normalized so that the square of its length is equal to g/li. This interpretation becomes more obvious when (16) is unpacked into separate expressions ... 

The solution is stirred and cooled to —75° with a dry ice-acetone bath, and 2.90 g. (0.05 mole) of propionaldehyde (Note 18) is added through a dropping funnel. The solution is stirred at —75° for 5 minutes. The dry ice-acetone bath is replaced by a water bath, and the solution is stirred at 20° for 30 minutes. The solution is diluted with 250 ml. of ether and washed with two 100-ml. portions of 5M aqueous ammonium chloride, two 100-ml. portions of water, and 100 ml. of saturated aqueous sodium chloride. Each of the aqueous washes is extracted with the same 250-ml. portion of ether. The combined ethereal solution is dried over anhydrous magnesium sulfate (Note 4), filtered, and evaporated at 40° under a pressure of 25 mm. The residual liquid is distilled under reduced pressure through a 10 x 0.7 cm., unpacked, vacuum-jacketed column, and the material boiling at 93-98° (2 mm.) furnishes 7.90-7.99 g. (82-83%) of l,3-bis(methylthio)-l-hexen-4-ol (Notes 19, 20). 

The checkers used a 15 x 1 cm., unpacked, vacuum-jacketed column for the distillation. 

---