Transparent membranes

A mask consisting of a pattern made with an x-ray absorbing material on a thin x-ray transparent membrane,... 

Porous membrane Colloidal CdS particles converted to Xerogels and dried at about 10 3 Torr at 30-40 °C to produce crack-free, optically transparent membranes... 

When we reflect on these facts. .. the difficulty ceases to be very great in believing that natural selection may have converted the simple apparatus of an optic nerve, coated with pigment and invested by transparent membrane, into an optical instrument as perfect as is possessed by any member of the Articulate Class. ... 

Co-immobilization of pH-sensitive dyes and proton-consuming or proton-generating enzymes to a thin transparent membrane sandwiched between an LED light source and a silicon photodiode-amplifier detector system permits the characteristic color change observed on... 

Li et al (1998, 1999) developed a technique that allows visual in-situ observation of colloids depositing on membranes. The technique is limited to transparent membranes, but allows the study of particle deposition and particle-membrane interactions. light microscopy was satisfactor) for super-micron particles, but fluorescence microscopy was required for sub-micron bacteria (0.5 am). 

Cremers J (2006), Einsatzmdglichkeiten von Vakuum-Ddmmsystemen im Bereich der Gebdudehtille - technologische, bauphysikalische und architektonische Aspekte, Munich and New York, Martin Meidenbauer Cremers J (2007), Flexible photovoltaics integrated in transparent membrane and pneumatic foil constructions. In Proceedings of the CISBAT 2007 Conference, EPFL, Lausanne, Switzerland... 

The manufacture of ultrafiltration membranes is possible on the basis of mix polysulfone-polyesteiketone [432, 433]. Transparent membranes obtained by means of cast from solution have good mechanical properties in both dry and hydrated state and keep analogous mechanical properties after exposition in water (for 24 h at 80 °C). The maximal conductivity of membranes at 23 °C is 4.2x lO Sm/cm while it increases to 0.11 Sm/cm at 80 °C. 

By solution cashng, transparent membranes with good mechaihcal properties are obtained. These membranes show a good oxidative and dimensional stability, further a higher proton conductivity than that of Nation 117 [101]. 

There are two ways of transferring the fibers from the filter to an electron-transparent membrane on a suitable TEM grid. 

This is widely used today. The characteristics of the membrane will vary with the extent of acetylation, the prewashing procedure employed by the manufacturer, and the additives used, as well as the pore size and the thickness of the membrane. Cellulose acetate membranes may be made transparent (cleared) for densitometry by treatment with a solvent mixture that partially dissolves the cellulose acetate fibers and eliminates the original air spaces. Advantages are the speed of separation (20 min-1 h) and the ability to store the transparent membranes for long periods. 

Chemical polymerization methods are also available for preparation of functionalized conducting polymers. Several techniques are shown in Table 9.1. The vapour/liquid interface chemical polymerization is recommended to obtain a thin and highly transparent membrane (film) (Table 9.1 (3)) [8]. On the other hand, utilizing an appropriate support which contains any kind of functional molecule, the functional molecule incorporating conducting polymer membrane, as well as a simple conducting polymer, is obtained by the methods illustrated in Table 9.1 (4). By these methods, it is possible to... 

By seahng the fiducial volume within a low permeability transparent membrane, the KamLAND collaboration expects to achieve a residual radon concentration of 1 pBq/m in their active liquid scintillator volume. Interpolating in Table 7, this concentration in a water detector gives a sensitive range of no more than 40 km. 

Cataract A clouding of the lens of the eye or its surrounding transparent membrane that obstructs the passage of light. 

Corneal/conjunctival burns Burns to the transparent membrane covering the eyeball and lining the eyelids. 

Fig. 9. Schematic diagram of the mouse ovary and oviduct prepared for oviduct transfer. The infundibulum is located within the coils of the oviduct and may be accessed by penetrating the transparent membrane that covers the oviduct.

Distortion di- st6r-shon (1581) n. (1) A change in the shape of a solid body, often associated with temperature differences or stress gradients within the body. (2) An apparent change of shape as perceived through an optically imperfect, transparent membrane or reflected from an imperfect mirror. 

The conjunctiva is a thin transparent membrane, which lines the inner surface of the eyelids and is reflected onto the globe. The conjunctiva consists of three parts bulbar on the eye surface (sclera), fornix or conjunctival sac and palpebral on the inner side of the eyelids. The bulbar conjunctiva lies upon the sclera and only attaches to the sclera on the limbus. The structure resembles a palisade and is more permeable than the cornea. 

Decan-l-ol(0.18g) plus dioctylphenyl phosphonate (0.18 g) 8x 10-5 Semi-rigid but completely transparent membrane. Some exudate on surface. 

In term of applications, graphene has enormous potential for use in ultrafast electronic transistors and flexible displays. Moreover, graphene can be used in composite materials and in electric batteries due to its large surface-to-volume ratio and high conductivity, for transparent membranes due to its atomic thickness, in micro-mechanical resonators due to its robustness and light weight, and chemical detectors due to it selective reactivity [11]. 

Extreme vitamin A deficiency over a long period of time may cause xerophthalmia, characterized by the following stages (1) the cornea (the transparent membrane that coats the outer surface of the eye) becomes dry, then inflamed... 

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