Filter phase

The filtered phase and suspended particulate phase of the 1 9 slurry represent the 100% concentration or 1,000,000 ppm. Serial dilutions of these two phases of drilling fluids are used in the test procedure to expose mysid shrimp (Mysidopsis bahia) for 96 hr and determine the LC. ... 

The data from H NMR studies of 63, which included double quantum filtered phase sensitive correlated spectroscopy (DQF-COSY) and rotating frame nuclear Overhauser effect spectroscopy (ROESY) experiments (Figure 12), are collected in Table 17. 

Dual Phase Continuity. Dual phase continuity has been shown to be important in numerous polymer blends and IPN s, to achieve special properties. Dual phase continuity is defined as a region of space where two phases maintain some degree of continuity. An example of dual phase continuity is an air filter and the air that flows through it. A Maxwell demon could traverse all space within the air filter phase, as well as within the air phase. 

A major interest to sequential IPN s relates to dual phase continuity, defined as a region of space where each of two phases maintain some degree of connectivity. An example is an air filter with the air flowing through it. A Maxwell demon can transverse all space within both the filter phase and the air phase, both phases being continuous. 

Note that with a non-DQ-filtered, phase sensitive COSY experiment the cross peaks are again purely absorptive while diagonal peaks irrespective of the phase correction will have both absorptive and dispersive character. Unlike most other 2D spectra, it is therefore best to phase correct a non-DQ-filtered phase sensitive COSY spectrum while examining the cross rather than the diagonal peaks. 

In developing a source/filter phase model, the excitation phase representation in Equation (9.31) is simplified by introducing a parameter representing the pitch pulse onset time. In the context of the sine-wave model, a pitch pulse occurs when all of the sine waves add coherently (i.e., are in phase). The excitation waveform is modeled as... 

Several of the spectra in this workbook were obtained using techniques such as proton-detected C-H shift correlation and multiple-quantum-filtered phase-sensitive COSY which were not covered in detail in our main text because they have come into general use since it was written. This is a measure of the rate at which practical NMR is progressing but presents no problem in the interpretation of the spectra. Various field strengths and modes of presentation, ranging from continuous-wave traces to phase-sensitive two-dimensional contour plots, were used for the spectra. In part, this reflects the history of individual problems, but it is also intentional. It is important to be able to extract the essential message of a spectrum independently of the way it is presented. 

Several of the spectra in this workbook were obtained using techniques such as proton-detected C—H shift correlation and multiple-quantum-filtered phase-sensitive COSY which were not covered in detail in our main text because they have come into general use since it was written. 

Burdett G. 1998. A comparison of historic asbestos measurements using a thermal precipitator with the membrane filter-phase contrast microscopy method. Arm Occup Hyg 42 21-31. 

Mechanically disrupted model kitchen garbage was obtained by the addition of the Table 2 Properties of mechanically disrupted garbage and its filtered phases... 

Sample preparation Homogenize (Polytron PCU-2) 150-200 mg skin with 4 mL chloroform, repeat homogenization, filter (phase-separating paper) extracts. Make the residue alkaline with 2 mL 10% NaOH, extract twice with 4 mL portions of chloroform, wash the extracts twice with 2 mL portions of water, filter (phase-separating paper) the organic layer. Combine all the chloroform layers and evaporate them to dr3mess under a stream of air, reconstitute the residue in 1 mL mobile phase, filter (microfilter), inject an aliquot. 

In an FM MMW spectrometer the spectral source frequency is modulated at a certain rate /, typically 1 kHz. This gives rise to sidebands of the spectral source frequency above and below the carrier frequency. The frequency modulated MMW carrier has in its modulation envelope phase and amplitude relationships to the carrier. Mixing in the non-linear junction of the detector yields the modulation signals altered by their interaction with the cavity and gas inside it, with their preserved amplitude and phase relationship to the original modulation signals. Those properties are measured by passing the heterodyne mixer output and the thermal noise contribution from the mixer, to a filtered phase-sensitive detection system, with the original modulation as reference. 

A sample phase (droplet matrix), n layers B filter phase, m layers C solvent phase... 

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