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Positively bonded joints of adhesive layer and adherend.

Positively charged conjugational defect.

Positively charged ions are called cations and negatively charged ions are called anions .

Positively charged nickel ions in the electrolyte are attracted by the negatively charged key . At the surface of the key they are reduced by gaining two electrons, and metal is deposited.

Positively charged residues are dark shaded in contrast with the negatively charged residues which are light shaded

Positively skewed distribution

Positives Negatives

Positivism taken from . Reproduced with permission from K.R. Popper, The Logic of Scientific Study,

Positron annihilation lifetime spectra for porous MSQ films generated by mixing MSQ film with different triblock copolymers

Positron annihilation lifetimes at 303 K for poly

Positron annihilation lifetimes at 303 K for poly. Reproduced with permission from Reference ,

Positron annihilation rates at various temperatures . Key

Positron emission tomography coronary arteries with

Positron emission tomography images of a normal human brain after 11C-verapamil administration in the absence or presence of cyclosporine

Positron emission tomography images of resting perfusion and metabolism using FDG showing a large myocardial scar in the LAD proximal to the first septal perforator

Positron emission tomography in the distribution of the mid

Positron emission tomography perfusion images showing a zone at risk. There is a moderate resting perfusion defect indicating a small non-transmural scar in the distribution of the LAD. After dipyridamole stress, the

Positron emission tomography scan showing resting perfusion and resting metabolic uptake of FDG in a patient with congestive heart failure. There is mildly reduced

Positron emission tomography scan showing stunned myocardium with normal resting perfusion but a severe stress induced perfusion defect that indicates severe

Positron emission tomography scan shows normal brain activity during sleep. A radioactive isotope that emits positrons is made into a chemical compound that is absorbed by active areas of the brain. The emitted positrons collide with nearby electrons and produce gamma rays that pass through the skull to detectors surrounding the patient s head. A computer uses the detector data to construct the image.

Positron emission tomography shows the brain areas activated and deactivated during REM sleep when compared to waking. In the forebrain, more activated areas are principally limbic structures, while the posterior cingulate cortex, part of the prefrontal and parietal cortex, are deactivated. Modified from Hobson et al. . Reprinted from NeuroReport with permission.

Positron excess due to neu-tralino annihilation, HEAT and AMS-02 data after a 1-year exposure.

Positron impact ionization for neon gases. Experimental data for neon

Positron impact ionization of atomic hydrogen. Experiment

Positron impact ionization of H2 gas. Experiment



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