Material History

Polylactides, 18 Poly lactones, 18, 43 Poly(L-lactic acid) (PLLA), 22, 41, 42 preparation of, 99-100 Polymer age, 1 Polymer architecture, 6-9 Polymer chains, nonmesogenic units in, 52 Polymer Chemistry (Stevens), 5 Polymeric chiral catalysts, 473-474 Polymeric materials, history of, 1-2 Polymeric MDI (PMDI), 201, 210, 238 Polymerizations. See also Copolymerization Depolymerization Polyesterification Polymers Prepolymerization Repolymerization Ring-opening polymerization Solid-state polymerization Solution polymerization Solvent-free polymerization Step-grown polymerization processes Vapor-phase deposition polymerization acid chloride, 155-157 ADMET, 4, 10, 431-461 anionic, 149, 174, 177-178 batch, 167 bulk, 166, 331 chain-growth, 4 continuous, 167, 548 coupling, 467 Friedel-Crafts, 332-334 Hoechst, 548 hydrolytic, 150-153 influence of water content on, 151-152, 154... 

The aim of the book is to describe in all simplicity the combinatorial and quantitative science of nucleosynthesis, a pure stellar arithmetic, chaste and contemplative, cloaked in the ironic reticence of nnmbers. It is so penetrating and revealing that it may be considered as our most powerful tool for divulging the material history of the Cosmos. 

Goetzberger A, Hebling C, Schock HW (2003) Photovoltaic materials, history, status and outlook. Mater Sci Eng R 40 1... 

From a time-temperature equivalence principle (see below), any material history may be represented by an isothermal equivalent, corresponding to a point U (tu, Tu) in the (t, T) graph. If the point U is below the TSC curve, the material will not undergo failure in the particular conditions. In contrast, if the point U is above the TSC curve, the material will undergo failure because its index % will change sign. 

From the measurment of the reduction of coarse and fine CuO(cr), Nunez et al. (4) conclude that A H of the copper oxides is Influenced by material history, state of subdivision, and non-stolchlometry. 

Thomsen (1 ) obtained A H (298.15 K) values of -40180, -40.87, and -41.51 kcal mol" from aqueous calorimetry using three different paths. He favored the first path which is recalculated by combination of the heats of reaction of CU2O + 8280, Fe + HgSO, and Pe + ChiSO (aq) to yield the heat of reduction of CU2O with H, Nunez et al (3) measured the direct heat of reduction of CU2O by Hg the conclude that the heats of formation of the copper oxides are influenced by material history, state of... 

A. Goetzberger, C. Hebling, and H.-W. Schock. Photovoltaic materials, history, status and outlook. Mater. Set Eng., R, 40(1) 1-46, January 2003. F.-C. Chen, Q. Xu, and Y. Yang. Enhanced efficiency of plastic photovoltaic devices by blending with ionic solid electrolytes. Appl. Phys. Lett., 84 3181-3183,2004. 

The HCF Department Manager is responsible for specifying the requirements, responsibilities, and implementation plan for documenting equipment maintenance histories. Specific equipment for which maintenance histories will be required is identified in the HCF MEL Material history data for such equipment will be used for planning, sdieduling, and performing maintenance on these items and to provide information for evaluation. The Site Maintenance Plan describes how similar information Is captured within the FOE work control system. 

Chapter 9 Radioactive Materials History of Radiation Types of Radiation Isotopes... 

One of the most difficult tasks of a conservator is reversing the conservation treatment of an object before starting new stabilization treatments, etc. Publication of past treatments, assessments of their effects and reversal methods is rare but most welcome to the conservator who must treat objects with comparable problems. Conservation is dependent on the material history that survives. The history of conservation, which is rarely written, is an integral part of conservation studies. 

Rogalski, A., 2005. HgCdTe infrared detector material history, stams and outlook. Rep. Prog. Phys. 68 (10), 2267. 

Water-pipes—Materials—History. 2. Lead—Environmental aspects— History. 3. Lead—Toxicology—History. 4. Drinking water—Lead content— History. 5. Pipe, Lead—History. 6. Lead poisoning—History. I. Title. 

Physical structure is determined by material history and processing. 

In addition to documenting the location of a facility, utility map records may also contain information on the age of the facility, type and dimensions of the material, history of leakage and maintenance, status of cathodic protection, soil content, and activity related to pending construction. However, the quality of this information varies widely. Participants at the 1994 damage prevention workshop recommended that when excavation revealed errors in mapping, operators should be required to update system maps. 

Consequently, the errors of each kind of procedure are determined by the absence of simultaneously acting factors or supra estimation of applied conditions. The synergistic effects of environmental stressors determine correct results, which must be correlated with the chemistry of material. The repeatability of artificial weathering tests provides somewhat similar information, which is influenced by the material history. The outdoor exposure does not ever create identical intensities of degrading agents. The meaningful results are obtained by the simulation of natural... 

Engineering experience Physical signs or indices embodied in objects and materials. Engineers observe and record this information as the material history of particular sites. 

TNA PRO AB 6/2563. Calder Hall book source material. History of the PIPPA Project BE Goodlet, 12 December 1952. 

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