Ludlum

In the General Electric—Allegheny Ludlum (GE—AT,) process (18), boron and nitrogen with sulfur or selenium are used as grain-growth inhibitors. 

Registered Trademark of Allegheny Ludlum Industries t Registered Trademark of Armco Steel Corporation t Registered Trademark of Vasco-Teledyne Company Registered Trademark of Republic Steel Corporation... 

The activation of olefins through the formation of the ir-complex with the transition metal ion at polymerization was postulated as one of the stages of the propagation reaction in many works, beginning with those of Ludlum el at. 184) and Carrick (185) ... 

The heart of the Data Acquisition System is the HP-85 (Hewlett-Packard, 1982) microcomputer which has been interfaced to a Wrenn Counter (Wrenn ert aj., 1975) using a Ludlum model 2200 scaler rate meter (Ludlum Measurements, Inc., 1982), a Rainwise weather station (Rainwise, Inc., 1984), and a water meter. These various components are interfaced to the HP-85 via a peripheral interface circuit as shown in the block diagram of Figure 1. For the interface to function properly, the General Purpose I/O (GPIO) has been configured such that two of its ports (A and B) form a 16-bit input port while ports C and D form a 16-bit output port. 

Ludlum Measurements, Inc., Instruction Manual, Model 2200 Portable Scaler Ratemeter, 501 Oak Street, Box 248, Sweetwater, Texas 79556 (1982). 

FIGURE 6.1 Automatic radiation-sensing alarm, Ludlum model 375/2. 

FIGURE 6.8 Ludlum Model 3 survey meter with Model 44-9 pancake Geiger-Mueller... 

Two characteristics of the light from noctilucent clouds may be observed with no more than one s eyes and a polarizing filter its color and whether or not it is strongly polarized. This enabled Ludlum (1957) to estimate the size range of noctilucent cloud particles. Because of the observed strong polarization he set 0.16 jum as their upper size limit on the basis of the observed color—white, silvery, sometimes bluish, but not sufficiently so as to indicate very small particles—he set 0.008 jam as their lower size limit. From other than optical evidence he also concluded that the particles were not ice, but were more likely to be volcanic, meteoric, or interplanetary dust. 

Meters and probes used in ail measurements were obtained from Ludlum Measurements Inc., Sweetwater, Tex. These meters are small, rugged instruments weighing only a few pounds, capable of operating on batteries or ic power. Battery power consists of leur D cells. Operation of several hundred hours with these cells is possible. The meters were modified by the man-... 

Amott D, Kishiyama A, Luis EA, Ludlum SG, Marsters JC Jr, Stults JT. Selective detection of membrane proteins without antibodies a mass spectro-metric version of the Western blot. Mol Cell Proteomics 2002 1 148-156. 

Pennock, J.R., Velinsky, D.J., Ludlum, and Sharp, J.H. (1996) Isotopic fractionation of ammonium and nitrate during uptake by Skeletonema costatum implications for 515N dynamics under bloom condition. Limnol. Oceanogr. 41, 451 —459. 

The group of Ludlum developed a high-performance liquid chromatography (HPLC) method for the analysis of N7-HETE-Gua (9) and also a 32P-postlabeling method for N7-HETE-deoxyguanosine 5 -phosphate (10). 

D.B. Ludlum, P. Austin-Ritchie, M. Hagopian, T.-Q. Niu and D. Yu, Detection of sulfur mustard-induced DNA modifications, Chem.-Biol. Interact., 91, 39-49 (1994). 

Allegheny Ludlum Technical Data Blue Sheet Martensitic Stainless Steel Types, 410, 420, 425 Mod and 440A, Allegheny Ludlum Corporation, 1998. 

Los Angeles smog, 241 Low-pressure impactors, 103 Lowan, A. N., 283 Lower explosive limit (LEL), 336 Ludlum, F. H., 255 Lumergs, 265 Lumination, 264 Luminators, 264 Lungs ... 

Ludlum, F. H., Clouds and Storms, Pennsylvania State University Press, University Park, 1980. 

Small Geiger counter (such as a Ludlum Model 2401P)... 

Ludlum, D.B., Kent, S., Mehta, J.R. (1986). Formation of 06-ethylthioethylguanine in DNA by reaction with the sulfur mustard, chloroethyl sulfide, and its apparent lack of repair by 06-alkylguanine-DNA alkyltransferase. Garcinogenesis 7 1203-6. 

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