Pickup reaction

Single stage processes usually lead to angular distributions with a strong forward maximum. The most important examples of this class are the stripping and pickup reactions discussed in Sects. 51 to 53-... 

Data from pickup reactions are given in the inverse order - one-nucleon transfer first, many-nucleon pickup reaction at the end. Such a method of data presentation (used also in NDS) permits a more effective comparison of results for one-nucleon transfer reactions (stripping and pickup) obtained by the use of different projectiles. For example, data on one-neutron transfer reactions (o , IIe), (t,d) and (d,p) can be compared between themselves as well as with data on one-neutron pickup transfer reactions (p,d), (d,t) and (r, a). 

Cross sections of two neutron pickup reaction (p,t) are from [76Oe02] the parameter e, two-particle spectroscopic amplitude B j j2J) and the normalization factor D are from another... 

Sum value for many L=3 levels [95So05], see there also cross sections for E >10 MeV. Comparison of data on neutron pickup reactions can be found in [91Du01, 95So05, 94Va28, 77Gal8],... 

These levels correspond to maxima in the deuteron yield (counts/MeV/ uC) in (p,d) reaction shown in [86Ma37] comparison of results of different neutron pickup reaction see in [80Ge01]. 

Two measurements of He-yield in the (d,r) proton pickup reaction were performed at 30° and 50° [96Ot02],... 

Two spectroscopic factors from neutron pickup reactions (d,t) and (t, a) derived from the relation S =d(j/(Klg xp/ da/dilowBA with N - normalization factor [97GoZN, 06He06] are given together with corresponding cross sections [97GoZN]. 

With greater overlap of the two nuclear potentials, additional channels open up that permit transfer of one or more nucleons, or direct reactions (Austern 1970). Classic examples of direct reactions are one-nucleon transfer, or stripping, and pickup reactions. Stripping is the transfer of a single nucleon from the projectile to the target, for example a (d,p) reaction. Pickup is the... 

Chemical compounds that contain methylol groups (-CH2 OH) form stable, covalent bonds with cellulose fibers. Those compounds are well known and widely used in textile chemistry. Hydrogen bonds with cellulose can be formed in this reaction as well. The treatment of cellulose with methylolmelamine compounds before forming cellulose unsaturated polyesters (UP) composites decreases the moisture pickup and increases the wet strength of reinforced plastic [48,49]. 

Organic Coatings. Organic coatings or lacquers protect the steel or tin from external or internal corrosion. The can interiors are coated to prevent undesirable reactions between the interior metal surface and the product. These reactions involve (1) corrosion of the tin coating caused by oxidants in the product, (2) color or flavor loss by the product because of metal ion pickup, or (3) staining of the metal by sulfur-con-... 

SMPB contains a hydrophobic cross-bridge and relatively nonpolar ends, which allows the reagent to permeate membrane structures. Due to its water-insolubility, it must be dissolved in an organic solvent prior to adding an aliquot to a reaction mixture. The solvents DMF and DMSO work well for this purpose. A concentrated stock solution prepared in these solvents allows for easy addition of a small amount to a conjugation reaction. Long-term storage in these solvents is not recommended due to slow water pickup and possible hydrolysis of the NHS ester end. 

Photodegradation of DDT by the protease-liberated flavo-protein from TX-20 resulted in the formation of TDE as the major product in addition to three other minor compounds. It has been well established that DDT conversion to TDE, anaerobically, is a reductive process involving replacement of a chlorine atom by hydrogen. On the other hand, it has been suggested that photo-lytic reactions involve a charge transfer from an amine to DDT and a subsequent pickup of a proton. Thus there is a possibility that the photochemical reaction involving flavoproteins undergoes a similar reaction scheme. Much more data are, however, needed to confirm this point. 

If one really forces the issue by going to extremely low cyanide concentrations, the reaction becomes exceedingly slow, to the point where the results are almost unreliable. Under these conditions the formation of some CoCCN OHsT3 as a reaction product is detectable, and we have attempted to see whether this might arise through the pentacoordinated cobalt(III) intermediate Co(CN)s 2 by doing this in the presence of ions such as Nf. However, we do not observe any pickup of N3 "" under these conditions consistent with the discrimination pattern reported by Haim and Wilmarth. We thus concluded that the Co(CN)5 2 reported by them is not formed under any conditions in the oxidation of Co(CN)5 3. 

Four types of fabric substrates were cyanoethylated the control, acid hydrolyzed, 50 and 100 Mrad. Fabric specimens 19 X 89 mm were sprayed with a fine mist of 2% NaOH solution using a hand spray bottle until a 100% pickup by weight was achieved. The specimens were then left to air dry until just damp. Six samples were then placed on a rack inside the sealed reaction vessel, which had inlet and outlet connections to permit the acrylonitrile vapor to flow through and around the reactive fabric. This vessel was connected to two bubble bottles containing water and acrylonitrile with which to saturate nitrogen gas as it entered the reaction vessel. The water was necessary to swell the cellulose so the acrylonitrile could penetrate. It was determined that varying nitrogen flow rates and reaction time had little effect on the percent add-on. 

Heat generated by reaction = Sensible heat pickup or -AHrV, = V pCp T-Tf) (23-58)... 

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