Feature combination

These features combine to provide 0.01min repeatability for peaks having retention times as long as 2h (other factors being equal). 

The user can generate FORTRAN expressions that allow numeric computers to run faster and more efficiently. This saves CPU cycles and makes computing more economical. The user can generate FORTRAN expressions from MACSYMA expressions. The FORTRAN capability is an extremely important feature combining symbolic and numeric capabilities. The trend is clear, and in a few years we will have powerful, inexpensive desktop or notebook computers that merge the symbolic, numeric and graphic capabilities in a scientific workstation. 

Finally the relevant feature combination for the description of the situations vAiere ccrplaints may occur can be used to predict the possible occurrence of bad situations in the (near) future. 

Doxycycline (6-deoxy-5-hydroxytetracycline, Vibramycin, III) is, chemically, the most stable tetracycline in current use but its outstanding property is its high lipid solubility these features combine to make it the most reliably and completely absorbed tetracycline derivative, with the longest half-life. 

The discovery of the polyoxin group (1) of antifungal nucleoside antibiotics (2) spurred the attention of synthetic chemists as well as biologists for a number of reasons. Their unusual structural features combined with unique biological activity fostered studies on many fronts (3). During their studies on the biosynthesis of the polyoxins, Isono, Crain and McCloskey (4) discovered three novel acidic nucleosides which they called octosyl acid A, B and C,... 

Feature selection, the choice of variables or features (combinations and transformations of original variables) relevant to the problem, is one of the most important aims of chemometrics. Reasons for feature selection are ... 

The non-binary all feature combination of the 3D fingerprint and interaction feature was able to retrieve -90% of the actives on screening 20% of the database. The Ochiai coefficient was slightly better than Tanimoto and significantly better than Dice and Hamming in retrieving actives. All features for the enzyme... 

The barriers to this approach have been technical in nature. Mode-locked Nd glass lasers remain a common light source for picosecond spectroscopic studies, but they suffer from poor reproducibility and very low repetition rates. These features combine to make wavelength scanning techniques unsuitable with such lasers. The alternative approach is to employ multichannel optical detection and thereby obtain full spectral coverage with each laser shot. It is also necessary to eliminate the effects of shot-to-shot variations of the laser output. 

In terms of viral assembly and structure the baculovirus system has been used with tremendous success and some representative examples are discussed in more detail below. Generally speaking, the expressed viral protein (s) can be expected to assemble into particles that are structurally similar if not identical to their native counterparts. This has been shown specifically in the case of the nodavirus Flock House virus, where X-ray analysis of native virions and VLPs showed no differences in the structure of the protein capsid (V. Reddy and J. E. Johnson [The Scripps Research Institute, La JoUa, CA], unpublished data). Similarly, structural investigations at lower resolution, using cryoelectron microscopy and three-dimensional image reconstruction, have confirmed the identity of native and synthetic virions in many other cases. This feature combined with the large amounts that can be obtained has permitted structural analysis of many viruses for which only limited amounts of native virions were available. 

In certain forms of the material, the microporous polymer creates exactly two distinct, interwoven but disconnected porespace labyrinths, separated by a continuous polymeric dividing wall. This opens up the possibility of performing enzymatic, catalytic or photosyndietic reactions in controlled, ultrafinely microporous polymeric materials with the prevention of recombination of the reaction products by their division into the two labyrinths. These features combine with specific surface areas for reaction on the order of lO -lO square meters per gram, and with the possibility of readily controllable chirality and porewall surface characteristics of the two labyrinths. 

Another unique characteri.stic of gas is its searching effect. A hastily dug fox bole affords individual shelter from machine-gun bullets, A copse of trees may well protect a whole company of infantry from artillery fire. But gas follows no narrow trajectory it permeates the air and overcomes all incidental obstacles of terrain to stalk iU quarry relentlessly. These distinctive features combine to enhance the p< wer and utility of chemical agents, particularly in their action against personnel. 

The modularity of the model class definition process allows the modeler to make use of preexisting classes or to gradually define new ones. This feature combined with the communicative properties of the semantic relations makes possible the modification or upgrading of a model class with the minimum of effort. 

Hart, K. J., Palmer, P. T., Diedrich, D. L. and Enke, C. G. Generation of substructure identification rules using feature-combinations from tandem mass spectra. ]. Am. Soc. Mass Spectrom. 3 159-168, 1992. 

The possibility of using electroless deposition to superfill sub-micrometer features has also been explored[347-349] successful filling was recently reported for an alkaline EDTA-complexed electrolyte containing SPS and PEG as additives [349]. However, the tilted sidewalls in the lower half of the features, combined with the absence of kinetic data, make a mechanistic assessment of feature filling difficult. 

The book includes a generous number of examples from a wide variety of applications S relate theory to actual results and to demonstrate the performance of process under varying conditions. The chapter topics follow a logical path that starts with basics and theoretical concepts and progresses systematically into the various separation processes. Each chapter provides the information relevant to a specihc topic and refers to appropriate chapters in the book as needed. These features combine to give you the understanding required to make the best selections of property prediction and simulation techniques and to avoid the cost incurred by the use of improper simulations. 

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