Objects fragile

Deteriora.tlon. An important source of damage to stone objects is mechanical in nature. Both breakage and abrasion account for much of the losses on objects made of this relatively fragile material. More difficulties are offered by the processes of a chemical nature which play a role in stone deterioration (132—134). 

Deteriora.tlon. Ceramic objects are fragile, and mechanical damages through breakage and abrasions are the most likely source of destmction. Low fired ceramics can suffer through the rehydration of the body material this process results ia a complete loss of mechanical streagth. The preseace of soluble salts ia porous ceramic bodies has the same disastrous results as ia stoae (136). 

Fragility testing This is a proprietory test to provide future reference data about an object, on its worthiness to operate under certain seismic conditions. When no seismic requirements are defined by the manufacturer the object is tested for its optimum capability. 

Most ancient wooden objects recovered in archaeological excavations are usually in a decayed, weak, and friable condition that requires stabilization before the objects can be safely handled and studied. Stabilization of wood and decayed wooden objects, generally includes the use of consolidants, liquid solutions of a resin that impregnates and fills gaps in the wood and on drying solidifies, strengthening its fragile, deteriorated structure (Thompson 1991 Rowell and Barbour 1990). 

De Gennes PG, Badoz J (1998) Hauraat esineet (fragile objects). Terra cognita, Helsinki... 

In Konstrukta , Kosmatschof s method of operation was still very close to the role models of the early Soviet avant-garde. If we recall the fragile, apparatuslike objects of Alexander Rodchenko (for example the space constructions of 1918-1920, which were exhibited in 2006 at the MAK in Vienna), or... 

Nebulizers — Nebulizers of existing systems have been the object of extensive controversy. An ICP nebulizer can be the source of serious problems, if either the nebulizer or sample solutions are not treated properly, since most ICP nebulizers are fragile and easily clogged by excessive amounts of undissolved matter. However, the failure rate of the cross flow nebulizer is no greater than that of most FAA nebulizers. (This is... 

Human subjects exposed to 195 ppm for 8 hours had discomfort of the eyes, nose, and throat, although there were no objective signs of injury and no increase in erythrocytic fragility. Similar symptoms occurred at 113 ppm for 4 hours. No clinical signs of adverse effects or subjective complaints occurred among seven male volunteers exposed to 20ppm for 2 hours. ... 

Appendix A. Objective Measures of Fragility and an Order Parameter for Glass Formation Acknowledgments References... 

APPENDIX A OBJECTIVE MEASURES OF FRAGILITY AND AN ORDER PARAMETER FOR GLASS FORMATION... 

In the second room, continued Johnston, the first object one notices is a glass case standing on a table. It is the balance. How much fight this fragile, simple instrument has shed on the natural sciencesl How many phenomena it has explained How many hidden truths it has revealed Who could enumerate the discussions it has ended, the hypotheses it has destroyed Who, in former times, would have believed that the determination of abstract truths and the development of the laws of nature would depend on the oscillations of this moving beam But... 

Consolidative reduction has been employed when the object is so badly corroded that it becomes extremely fragile and all surface details are just a mass of corrosion products. In this case, one must apply a low-current density over a prolonged period. In some instances, it is necessary to hold together the loose crusts during the electrolysis, which are then ultimately reduced in situ into a more coherent but porous metallic network. In the case of a completely mineralized silver lyre from the Royal Graves at Ur, partially-rectified current was used to reduce silver chloride [298]. 

One danger in atomic force microscopy is the destruction of fragile objects on the sample. Although the force applied by the tip to the sample is only of the order of 1 nN, the pressure... 

In general, however, the handle is not of great significance when considering the display of fragile silk objects in a museum. 

Whereas the previous example relies on a series of channels etched into the membrane, typical single-channel stochastic sensors can be created in a closely related way.91 For such sensors, usually one protein (e.g., a-hemolysin) is introduced into a lipid bilayer. However, the problem here is that lipid bilayers are rather fragile objects. As an alternative, Martin and coworkers embedded a single gold nanotube... 

This is interesting for fragile objects such as mammalian cells [13], which should not be squeezed between glass surfaces, and for motility experiments as the displacement of the cells is not limited vertically. The largest available magnification, depending upon the ocular-lens combination is about x 1500. This value limits the observation of the smallest cells such as non filamentous bacteria (E. coli) or plankton. 

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